/* roulang page: index */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        input,
        textarea,
        select {
            font-family: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            margin-top: 0;
            font-weight: 700;
            line-height: 1.35;
        }
        h1 {
            font-size: var(--font-h1);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: var(--font-h2);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: var(--font-h3);
        }
        h4 {
            font-size: var(--font-h4);
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }
        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }
        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            border: none;
            white-space: nowrap;
            transition: all var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184, 230, 46, 0.35);
        }
        .nav-cta:focus {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
            line-height: 1;
            flex-shrink: 0;
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links a {
                padding: 8px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                z-index: 999;
                max-height: calc(100vh - var(--nav-height));
                overflow-y: auto;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: var(--font-body);
                border-radius: var(--radius);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(184, 230, 46, 0.12);
                border-left: 3px solid var(--accent);
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                margin-top: 8px;
                padding: 14px 22px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: var(--font-body);
                border-radius: var(--radius-pill);
                border: none;
                text-decoration: none;
            }
        }
        @media (min-width: 769px) {
            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== HERO BENTO ========== */
        .hero-section {
            padding-top: var(--nav-height);
            min-height: 75vh;
            display: flex;
            align-items: center;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 43, 0.88) 0%, rgba(26, 42, 43, 0.7) 50%, rgba(26, 42, 43, 0.55) 100%);
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 60px 20px;
        }
        .hero-bento-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            align-items: start;
        }
        .hero-main-block {
            grid-row: 1 / 3;
            padding: 40px;
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.12);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .hero-main-block .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(184, 230, 46, 0.2);
            color: var(--accent);
            font-size: var(--font-xs);
            font-weight: 700;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
            width: fit-content;
        }
        .hero-main-block h1 {
            color: var(--white);
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .hero-main-block .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 540px;
        }
        .hero-cta-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-pill);
            border: none;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(184, 230, 46, 0.4);
            color: var(--primary);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: var(--white);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-pill);
            border: 2px solid rgba(255, 255, 255, 0.5);
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-outline-light:hover {
            border-color: var(--white);
            background: rgba(255, 255, 255, 0.08);
            color: var(--white);
        }
        .hero-mini-card {
            padding: 22px 24px;
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .hero-mini-card .mini-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .hero-mini-card .mini-info h4 {
            color: var(--white);
            font-size: 1rem;
            margin-bottom: 4px;
            font-weight: 700;
        }
        .hero-mini-card .mini-info span {
            color: rgba(255, 255, 255, 0.7);
            font-size: var(--font-xs);
        }
        .hero-cta-strip {
            grid-column: 1 / -1;
            padding: 18px 28px;
            background: rgba(184, 230, 46, 0.15);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(184, 230, 46, 0.25);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            color: var(--white);
        }
        .hero-cta-strip p {
            margin: 0;
            font-weight: 600;
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.9);
        }
        @media (max-width: 768px) {
            .hero-bento-grid {
                grid-template-columns: 1fr;
                grid-template-rows: auto;
                gap: 14px;
            }
            .hero-main-block {
                grid-row: auto;
                padding: 28px 20px;
            }
            .hero-main-block h1 {
                font-size: 1.7rem;
            }
            .hero-main-block .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-cta-strip {
                flex-direction: column;
                text-align: center;
                padding: 14px 18px;
            }
            .hero-mini-card {
                padding: 16px 18px;
            }
            .hero-section {
                min-height: auto;
            }
            .hero-inner {
                padding: 40px 16px;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }
        .section-sm {
            padding: 50px 0;
        }
        .section-dark {
            background: var(--primary);
            color: var(--white);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: var(--white);
        }
        .section-warm {
            background: var(--bg-warm);
        }
        .section-white {
            background: var(--white);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            margin-bottom: 12px;
        }
        .section-header .section-subtitle {
            color: var(--text-gray);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }
        .section-tag {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(184, 230, 46, 0.15);
            color: var(--primary);
            font-size: var(--font-xs);
            font-weight: 700;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
            margin-bottom: 10px;
        }
        @media (max-width: 640px) {
            .section {
                padding: 50px 0;
            }
            .section-sm {
                padding: 32px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
            transition: all var(--transition);
            height: 100%;
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-light);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: rgba(184, 230, 46, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card h4 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        .card p {
            color: var(--text-gray);
            font-size: var(--font-sm);
            margin-bottom: 0;
            line-height: 1.6;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            font-size: var(--font-sm);
            color: var(--primary);
            text-decoration: none;
            transition: gap var(--transition);
        }
        .card-link:hover {
            gap: 10px;
            color: var(--accent-hover);
        }
        .card-link i {
            font-size: 0.8rem;
        }

        /* ========== SERVICE HIGHLIGHTS ========== */
        .services-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .service-card-large {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 36px 32px;
            display: flex;
            gap: 24px;
            align-items: flex-start;
            transition: all var(--transition);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }
        .service-card-large:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-light);
        }
        .service-card-large .service-img {
            width: 120px;
            height: 120px;
            border-radius: var(--radius);
            object-fit: cover;
            flex-shrink: 0;
        }
        .service-card-large .service-body h4 {
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .service-card-large .service-body p {
            color: var(--text-gray);
            font-size: var(--font-sm);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .services-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-card-large {
                flex-direction: column;
                padding: 24px 20px;
            }
            .service-card-large .service-img {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== METRICS ========== */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .metric-item {
            padding: 24px 16px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .metric-item:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .metric-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }
        .metric-number .accent-dot {
            color: var(--accent);
        }
        .metric-label {
            font-size: var(--font-sm);
            color: var(--text-gray);
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .metric-number {
                font-size: 2rem;
            }
        }
        @media (max-width: 480px) {
            .metrics-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
        }

        /* ========== TIME SLOTS ========== */
        .time-slots-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .time-slot-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: all var(--transition);
            border-top: 4px solid transparent;
            position: relative;
        }
        .time-slot-card.featured {
            border-top-color: var(--accent);
            box-shadow: var(--shadow-md);
        }
        .time-slot-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .time-slot-card .slot-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .time-slot-card h4 {
            font-size: 1.15rem;
            margin-bottom: 6px;
        }
        .time-slot-card .slot-time {
            font-size: var(--font-xs);
            color: var(--text-gray);
            margin-bottom: 10px;
        }
        .time-slot-card .slot-desc {
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .time-slots-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== BRAND STORY ========== */
        .brand-story-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .brand-story-block .story-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .brand-story-block .story-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .brand-story-block .story-text h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }
        .brand-story-block .story-text p {
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .brand-story-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-story-block .story-image img {
                height: 240px;
            }
        }

        /* ========== TOPIC TAGS ========== */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }
        .topic-tag {
            display: inline-block;
            padding: 8px 18px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .topic-tag:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(184, 230, 46, 0.3);
        }

        /* ========== GUARANTEE STRIP ========== */
        .guarantee-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .guarantee-item {
            padding: 24px 16px;
        }
        .guarantee-item .guarantee-icon {
            font-size: 2.5rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .guarantee-item h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }
        .guarantee-item p {
            font-size: var(--font-xs);
            color: var(--text-gray);
            margin: 0;
        }
        @media (max-width: 768px) {
            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 480px) {
            .guarantee-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }

        /* ========== TIER COMPARISON ========== */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }
        .tier-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: all var(--transition);
            border: 2px solid transparent;
            position: relative;
            display: flex;
            flex-direction: column;
        }
        .tier-card.recommended {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            transform: scale(1.03);
            z-index: 1;
        }
        .tier-card.recommended .tier-badge {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: var(--primary);
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            font-size: var(--font-xs);
            font-weight: 700;
            white-space: nowrap;
        }
        .tier-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .tier-card.recommended:hover {
            transform: scale(1.03) translateY(-3px);
        }
        .tier-card h4 {
            font-size: 1.25rem;
            margin-bottom: 4px;
        }
        .tier-price {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            margin: 12px 0;
        }
        .tier-price span {
            font-size: var(--font-sm);
            font-weight: 400;
            color: var(--text-gray);
        }
        .tier-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
            text-align: left;
            flex-grow: 1;
        }
        .tier-features li {
            padding: 7px 0;
            font-size: var(--font-sm);
            color: var(--text-body);
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .tier-features li i {
            color: var(--accent);
            font-size: 0.8rem;
        }
        .tier-card .btn-primary {
            width: 100%;
            justify-content: center;
            margin-top: auto;
        }
        @media (max-width: 768px) {
            .tier-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .tier-card.recommended {
                transform: none;
            }
            .tier-card.recommended:hover {
                transform: translateY(-3px);
            }
        }

        /* ========== CASE CARDS ========== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .case-card .case-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .case-card .case-body {
            padding: 20px 22px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .case-card .case-body h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }
        .case-card .case-body p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.6;
            flex-grow: 1;
        }
        @media (max-width: 768px) {
            .case-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ========== DEEP CONTENT ========== */
        .deep-content-block {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow);
            line-height: 1.85;
        }
        .deep-content-block h3 {
            font-size: 1.4rem;
            margin-bottom: 16px;
            margin-top: 24px;
        }
        .deep-content-block h3:first-child {
            margin-top: 0;
        }
        .deep-content-block p {
            color: var(--text-body);
            margin-bottom: 14px;
        }
        .deep-content-block ul {
            margin-bottom: 16px;
        }
        .deep-content-block ul li {
            margin-bottom: 6px;
            color: var(--text-body);
        }
        @media (max-width: 640px) {
            .deep-content-block {
                padding: 24px 18px;
            }
        }

        /* ========== NEWS ========== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .news-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .news-list li {
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
        }
        .news-list li:first-child {
            padding-top: 0;
        }
        .news-list li:hover {
            background: rgba(184, 230, 46, 0.04);
            margin: 0 -8px;
            padding-left: 8px;
            padding-right: 8px;
            border-radius: var(--radius-sm);
        }
        .news-date {
            font-size: var(--font-xs);
            color: var(--text-light);
            margin-bottom: 4px;
            display: block;
        }
        .news-title-link {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-dark);
            text-decoration: none;
            display: block;
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .news-title-link:hover {
            color: var(--accent-hover);
        }
        .news-summary {
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        .news-readmore {
            font-size: var(--font-xs);
            font-weight: 600;
            color: var(--primary);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-readmore:hover {
            color: var(--accent-hover);
        }
        .news-sidebar {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow);
            position: sticky;
            top: calc(var(--nav-height) + 20px);
        }
        .news-sidebar h4 {
            font-size: 1.1rem;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
        }
        .sidebar-recommend-item {
            display: flex;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: center;
        }
        .sidebar-recommend-item:last-child {
            border-bottom: none;
        }
        .sidebar-recommend-item img {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .sidebar-recommend-item .rec-info {
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-dark);
            line-height: 1.4;
        }
        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .news-sidebar {
                position: static;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            list-style: none;
            padding: 0;
            margin: 0;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 10px;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            background: var(--white);
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: background var(--transition);
            line-height: 1.5;
        }
        .faq-question:hover {
            background: rgba(184, 230, 46, 0.05);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--primary);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            color: var(--text-gray);
            font-size: var(--font-sm);
            line-height: 1.7;
        }

        /* ========== CTA FORM ========== */
        .cta-form-block {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            box-shadow: var(--shadow-md);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .cta-form-block .cta-info h3 {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }
        .cta-form-block .cta-info p {
            color: var(--text-gray);
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .cta-form input,
        .cta-form textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius);
            font-size: var(--font-sm);
            transition: border-color var(--transition);
            background: var(--white);
            color: var(--text-dark);
        }
        .cta-form input:focus,
        .cta-form textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(184, 230, 46, 0.15);
        }
        .cta-form textarea {
            resize: vertical;
            min-height: 90px;
        }
        .cta-form .btn-primary {
            width: 100%;
            justify-content: center;
            padding: 14px;
        }
        @media (max-width: 768px) {
            .cta-form-block {
                grid-template-columns: 1fr;
                padding: 28px 20px;
                gap: 20px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }
        .footer-brand h4 {
            color: var(--white);
            font-size: 1.2rem;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
        }
        .footer-links h4 {
            color: var(--white);
            font-size: 1rem;
            margin-bottom: 12px;
        }
        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links ul li {
            margin-bottom: 8px;
        }
        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.7);
            font-size: var(--font-sm);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-links ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
            font-size: var(--font-xs);
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom .footer-sep {
            color: rgba(255, 255, 255, 0.3);
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-8 {
            margin-bottom: 8px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* ========== ANIMATIONS ========== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.5s ease forwards;
        }

        /* ========== FOCUS VISIBLE ========== */
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

/* roulang page: category3 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media (max-width: 768px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            box-sizing: border-box;
        }

        *,
        *::before,
        *::after {
            box-sizing: inherit;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184, 230, 46, 0.35);
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }

        .desktop-only {
            display: inline-flex;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 85%;
                max-width: 380px;
                height: 100vh;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 28px 40px;
                gap: 4px;
                transition: right var(--transition-slow);
                box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
                z-index: 1000;
                overflow-y: auto;
            }
            .nav-links.active {
                right: 0;
            }
            .nav-links a {
                font-size: 1.05rem;
                padding: 12px 8px;
                width: 100%;
                border-radius: var(--radius);
            }
            .nav-links a.active::after {
                bottom: 4px;
                left: 8px;
                right: 8px;
                height: 3px;
            }
            .nav-cta-mobile-wrap {
                display: block;
                width: 100%;
                margin-top: 16px;
            }
            .nav-cta-mobile {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 100%;
                padding: 14px 24px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: 1rem;
                border-radius: var(--radius-pill);
                text-decoration: none;
                transition: background var(--transition);
            }
            .nav-cta-mobile:hover {
                background: var(--accent-hover);
                color: var(--primary);
            }
        }

        /* ========== INNER BANNER ========== */
        .inner-banner {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 360px;
            display: flex;
            align-items: center;
            padding: 60px 0;
            overflow: hidden;
        }

        .inner-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 43, 0.88) 0%, rgba(26, 42, 43, 0.72) 100%);
            z-index: 0;
        }

        .inner-banner .container {
            position: relative;
            z-index: 1;
        }

        .inner-banner .banner-content {
            max-width: 700px;
        }

        .inner-banner .banner-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .inner-banner h1 {
            font-size: var(--font-h1);
            color: var(--white);
            font-weight: 800;
            margin: 0 0 16px 0;
            line-height: 1.3;
            letter-spacing: 0.02em;
        }

        .inner-banner .banner-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 24px 0;
            line-height: 1.6;
            max-width: 560px;
        }

        .inner-banner .banner-cta-row {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            text-decoration: none;
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            cursor: pointer;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(184, 230, 46, 0.4);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: var(--white);
            font-weight: 700;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            text-decoration: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: border-color var(--transition), background var(--transition), color var(--transition);
            cursor: pointer;
        }

        .btn-outline-light:hover {
            border-color: var(--white);
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
        }

        @media (max-width: 640px) {
            .inner-banner {
                min-height: 280px;
                padding: 40px 0;
            }
            .inner-banner h1 {
                font-size: 1.5rem;
            }
            .inner-banner .banner-sub {
                font-size: 0.95rem;
            }
            .btn-primary,
            .btn-outline-light {
                padding: 11px 22px;
                font-size: var(--font-sm);
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--white);
            padding: 80px 0;
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
            padding: 80px 0;
        }

        @media (max-width: 640px) {
            .section,
            .section-alt,
            .section-dark {
                padding: 48px 0;
            }
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent-hover);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .section-dark .section-label {
            color: var(--accent);
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: var(--white);
        }

        .section-desc {
            font-size: var(--font-body);
            color: var(--text-gray);
            max-width: 680px;
            line-height: 1.7;
            margin: 0 0 32px 0;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px 0;
        }

        .card p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.6;
            flex-grow: 1;
        }

        .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius) var(--radius) 0 0;
            margin: -28px -28px 20px -28px;
            width: calc(100% + 56px);
        }

        /* ========== PROCESS STEPS ========== */
        .process-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .process-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--white);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition);
        }

        .process-item:hover {
            box-shadow: var(--shadow);
        }

        .process-num {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .process-body h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px 0;
        }

        .process-body p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 640px) {
            .process-item {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ========== IMAGE TEXT BLOCK ========== */
        .img-text-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .img-text-block.reverse {
            direction: rtl;
        }

        .img-text-block.reverse>* {
            direction: ltr;
        }

        .img-text-block .img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .img-text-block .img-wrap img {
            width: 100%;
            height: auto;
            display: block;
        }

        .img-text-block .text-wrap h3 {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 12px 0;
            line-height: 1.3;
        }

        .img-text-block .text-wrap p {
            font-size: var(--font-body);
            color: var(--text-gray);
            line-height: 1.7;
            margin: 0 0 12px 0;
        }

        .img-text-block .text-wrap .highlight-list {
            list-style: none;
            padding: 0;
            margin: 12px 0 0 0;
        }

        .img-text-block .text-wrap .highlight-list li {
            padding: 6px 0 6px 24px;
            position: relative;
            font-size: var(--font-sm);
            color: var(--text-body);
            line-height: 1.6;
        }

        .img-text-block .text-wrap .highlight-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        @media (max-width: 768px) {
            .img-text-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .img-text-block.reverse {
                direction: ltr;
            }
        }

        /* ========== STATS ROW ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-card .stat-num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-card .stat-label {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-card .stat-num {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 480px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 18px 12px;
            }
            .stat-card .stat-num {
                font-size: 1.5rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            background: none;
            border: none;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            text-align: left;
            gap: 12px;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            font-size: 1.1rem;
            color: var(--accent-hover);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--bg-warm);
            padding: 80px 0;
            text-align: center;
        }

        .cta-section .cta-inner {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            box-shadow: var(--shadow-md);
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-section h3 {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 10px 0;
        }

        .cta-section p {
            font-size: var(--font-body);
            color: var(--text-gray);
            margin: 0 0 24px 0;
            line-height: 1.6;
        }

        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 14px 32px;
        }

        @media (max-width: 640px) {
            .cta-section .cta-inner {
                padding: 32px 20px;
            }
            .cta-section h3 {
                font-size: 1.2rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h4 {
            font-size: var(--font-h4);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 10px 0;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin: 0;
        }

        .footer-links h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--white);
            margin: 0 0 12px 0;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 6px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: var(--font-sm);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            font-size: var(--font-xs);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.25);
            margin: 0 8px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-0 {
            margin-top: 0;
        }

        /* ========== OVERLAY for mobile nav ========== */
        .nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.45);
            z-index: 999;
            transition: opacity var(--transition-slow);
        }

        .nav-overlay.active {
            display: block;
        }

        @media (min-width: 769px) {
            .nav-overlay.active {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media (max-width: 768px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: scale(1.03);
        }

        .nav-cta:focus {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .desktop-only {
            display: inline-flex;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .hamburger:hover {
            background: rgba(184, 230, 46, 0.1);
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .desktop-only {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 0;
                max-height: 0;
                overflow: hidden;
                transition: max-height var(--transition-slow), box-shadow var(--transition-slow);
                box-shadow: none;
                z-index: 999;
            }
            .nav-links.open {
                max-height: 85vh;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
                overflow-y: auto;
            }
            .nav-links li {
                border-bottom: 1px solid var(--border-light);
            }
            .nav-links a {
                padding: 14px 20px;
                font-size: var(--font-body);
                border-radius: 0;
                font-weight: 600;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(184, 230, 46, 0.12);
                border-left: 4px solid var(--accent);
            }
            .nav-cta-mobile-wrap {
                display: block;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-light);
            }
            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                padding: 14px 20px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: var(--font-body);
                border-radius: var(--radius-pill);
                text-decoration: none;
            }
            .nav-cta-mobile:hover {
                background: var(--accent-hover);
                color: var(--primary);
            }
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 55vh;
            display: flex;
            align-items: center;
            padding: 80px 0 60px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 43, 0.88) 0%, rgba(26, 42, 43, 0.72) 50%, rgba(26, 42, 43, 0.85) 100%);
            z-index: 1;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
        }

        .page-hero-content {
            max-width: 720px;
        }

        .page-hero-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .page-hero h1 {
            font-size: var(--font-h1);
            font-weight: 900;
            color: var(--white);
            margin: 0 0 16px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }

        .page-hero h1 .highlight {
            color: var(--accent);
        }

        .page-hero-description {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            line-height: 1.7;
            max-width: 600px;
        }

        .page-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(184, 230, 46, 0.3);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            background: transparent;
            color: var(--white);
            font-weight: 600;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            text-decoration: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: border-color var(--transition), background var(--transition), color var(--transition);
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            background: rgba(184, 230, 46, 0.1);
            color: var(--accent);
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 50px 0;
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
        }

        .section-white {
            background: var(--white);
        }

        .section-warm {
            background: var(--bg-warm);
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .section-dark .section-label {
            color: var(--accent);
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: var(--white);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-gray);
            margin: 0 0 40px;
            max-width: 650px;
            line-height: 1.6;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .card p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.6;
        }

        .card-highlight {
            border-left: 4px solid var(--accent);
        }

        /* ========== ASYMMETRIC GRID BLOCK ========== */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .info-block.reverse {
            grid-template-columns: 1fr 1fr;
            direction: rtl;
        }

        .info-block.reverse .info-block-text {
            direction: ltr;
        }

        .info-block-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .info-block-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .info-block-text h3 {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 14px;
            line-height: 1.3;
        }

        .info-block-text p {
            font-size: var(--font-body);
            color: var(--text-gray);
            margin: 0 0 16px;
            line-height: 1.7;
        }

        .info-block-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .info-block-list li {
            padding: 8px 0 8px 24px;
            position: relative;
            font-size: var(--font-sm);
            color: var(--text-body);
            line-height: 1.6;
        }

        .info-block-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        @media (max-width: 768px) {
            .info-block,
            .info-block.reverse {
                grid-template-columns: 1fr;
                gap: 28px;
                direction: ltr;
            }
            .info-block.reverse .info-block-text {
                direction: ltr;
            }
            .info-block-image {
                order: -1;
            }
        }

        /* ========== PROCESS STEPS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .process-step {
            text-align: center;
            position: relative;
            padding: 32px 20px 24px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid var(--border-light);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .process-step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            line-height: 1;
        }

        .process-step h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
        }

        .process-step p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STATS BLOCK ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            margin-bottom: 10px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            background: none;
            border: none;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            text-align: left;
            gap: 12px;
            line-height: 1.4;
            transition: color var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--primary);
            transition: transform var(--transition), background var(--transition);
            font-weight: 700;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.08);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 12px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin: 0 0 28px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 15px 34px;
        }

        /* ========== RELATED LINKS ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), transform var(--transition);
            border: 1px solid var(--border-light);
            text-decoration: none;
            display: block;
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .related-card-image {
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .related-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .related-card:hover .related-card-image img {
            transform: scale(1.04);
        }

        .related-card-body {
            padding: 18px 16px;
        }

        .related-card-body h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 6px;
        }

        .related-card-body p {
            font-size: var(--font-xs);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .related-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 50px 0 0;
            font-size: var(--font-sm);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        }

        .footer-brand h4 {
            font-size: var(--font-h4);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 12px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.6;
            margin: 0;
            font-size: var(--font-sm);
        }

        .footer-links h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--white);
            margin: 0 0 12px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 6px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: var(--font-sm);
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.25);
            margin: 0 4px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 50px 0;
            }
            .page-hero {
                min-height: 45vh;
                padding: 60px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.5rem;
            }
            .page-hero-description {
                font-size: 0.95rem;
            }
            .page-hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .page-hero-actions .btn-primary,
            .page-hero-actions .btn-outline-light {
                text-align: center;
                justify-content: center;
            }
            .card {
                padding: 20px 16px;
            }
            .info-block {
                gap: 20px;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .process-step {
                padding: 20px 14px 16px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media screen and (max-width: 640px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media screen and (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: scale(1.03);
            box-shadow: 0 4px 16px rgba(184, 230, 46, 0.35);
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .hamburger:hover {
            background: rgba(184, 230, 46, 0.1);
        }

        .desktop-only {
            display: inline-flex;
        }

        @media screen and (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media screen and (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: var(--white);
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform var(--transition-slow), opacity var(--transition-slow);
                z-index: 999;
                border-bottom: 2px solid var(--border-light);
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: var(--font-body);
                width: 100%;
                text-align: left;
                border-radius: var(--radius);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(184, 230, 46, 0.12);
                border-left: 4px solid var(--accent);
            }
            .nav-cta-mobile-wrap {
                display: block;
                margin-top: 8px;
            }
            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                padding: 14px 20px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: var(--font-body);
                border-radius: var(--radius-pill);
                text-decoration: none;
                transition: background var(--transition);
            }
            .nav-cta-mobile:hover {
                background: var(--accent-hover);
                color: var(--primary);
            }
        }

        /* ========== SECTION SPACING ========== */
        .section {
            padding: 80px 0;
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
            padding: 80px 0;
        }

        .section-warm {
            background: var(--bg-warm);
            padding: 80px 0;
        }

        .section-white {
            background: var(--white);
            padding: 80px 0;
        }

        @media screen and (max-width: 640px) {
            .section,
            .section-dark,
            .section-warm,
            .section-white {
                padding: 50px 0;
            }
        }

        /* ========== HERO - 白皮书获客 ========== */
        .hero-whitepaper {
            background: var(--primary);
            background-image: linear-gradient(135deg, rgba(26, 42, 43, 0.92) 0%, rgba(26, 42, 43, 0.78) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            padding: 90px 0 80px;
            color: var(--white);
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
        }

        .hero-whitepaper .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1.1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-whitepaper .hero-cover-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-whitepaper .hero-cover-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
            max-width: 380px;
            width: 100%;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
        }

        .hero-whitepaper .hero-cover-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 24px 56px rgba(0, 0, 0, 0.45);
        }

        .hero-whitepaper .hero-cover-card img {
            width: 100%;
            aspect-ratio: 3/4;
            object-fit: cover;
            display: block;
        }

        .hero-whitepaper .hero-cover-label {
            background: var(--accent);
            color: var(--primary);
            padding: 14px 20px;
            font-weight: 800;
            font-size: var(--font-sm);
            text-align: center;
            letter-spacing: 0.04em;
        }

        .hero-whitepaper .hero-content h1 {
            font-size: var(--font-h1);
            font-weight: 900;
            color: var(--white);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .hero-whitepaper .hero-content h1 span {
            color: var(--accent);
        }

        .hero-whitepaper .hero-subtitle {
            font-size: var(--font-h4);
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
            line-height: 1.6;
        }

        .hero-whitepaper .hero-toc {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }

        .hero-whitepaper .hero-toc h4 {
            color: var(--accent);
            font-size: var(--font-h4);
            font-weight: 700;
            margin-bottom: 12px;
        }

        .hero-whitepaper .hero-toc ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .hero-whitepaper .hero-toc ul li {
            color: rgba(255, 255, 255, 0.8);
            padding: 6px 0;
            font-size: var(--font-sm);
            position: relative;
            padding-left: 20px;
        }

        .hero-whitepaper .hero-toc ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-weight: 700;
        }

        .hero-whitepaper .hero-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hero-whitepaper .hero-form input {
            padding: 14px 18px;
            border-radius: var(--radius-pill);
            border: 2px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: var(--white);
            font-size: var(--font-body);
            transition: border-color var(--transition), background var(--transition);
            outline: none;
        }

        .hero-whitepaper .hero-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }

        .hero-whitepaper .hero-form input:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.16);
        }

        .hero-whitepaper .btn-download {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 15px 32px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 800;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            width: 100%;
        }

        .hero-whitepaper .btn-download:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(184, 230, 46, 0.4);
            color: var(--primary);
        }

        @media screen and (max-width: 768px) {
            .hero-whitepaper .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-whitepaper .hero-cover-card {
                max-width: 260px;
            }
            .hero-whitepaper {
                padding: 60px 0 50px;
                min-height: auto;
            }
        }

        /* ========== 板块标题 ========== */
        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

        .section-title-light {
            color: var(--white);
        }

        .section-subtitle {
            font-size: var(--font-body);
            color: var(--text-gray);
            margin-bottom: 40px;
            max-width: 700px;
            line-height: 1.6;
        }

        .section-subtitle-light {
            color: rgba(255, 255, 255, 0.7);
        }

        .section-header {
            margin-bottom: 48px;
        }

        .section-header.center {
            text-align: center;
        }

        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== 卡片系统 ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            border: 1px solid transparent;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--border-light);
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .card p {
            color: var(--text-gray);
            font-size: var(--font-sm);
            line-height: 1.6;
            margin: 0;
        }

        /* ========== 数据指标块 ========== */
        .stat-block {
            text-align: center;
            padding: 24px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .stat-block:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .accent {
            color: var(--accent);
        }

        .stat-label {
            font-size: var(--font-sm);
            color: var(--text-gray);
            font-weight: 600;
        }

        /* ========== 深度内容区 ========== */
        .content-block {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-sm);
            line-height: 1.8;
        }

        .content-block h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 20px;
            padding-bottom: 16px;
            border-bottom: 3px solid var(--accent);
            display: inline-block;
        }

        .content-block h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text-dark);
            margin-top: 28px;
            margin-bottom: 12px;
        }

        .content-block p {
            color: var(--text-body);
            margin-bottom: 16px;
            font-size: var(--font-body);
        }

        .content-block ul {
            padding-left: 20px;
            margin-bottom: 16px;
        }

        .content-block ul li {
            color: var(--text-body);
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .content-block ul li::marker {
            color: var(--accent);
        }

        @media screen and (max-width: 640px) {
            .content-block {
                padding: 24px 20px;
            }
        }

        /* ========== 案例卡片 ========== */
        .case-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .case-card img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .case-card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .case-card-body h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .case-card-body .case-tag {
            display: inline-block;
            background: rgba(184, 230, 46, 0.2);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: var(--font-xs);
            font-weight: 600;
            margin-bottom: 12px;
            width: fit-content;
        }

        .case-card-body p {
            color: var(--text-gray);
            font-size: var(--font-sm);
            line-height: 1.6;
            flex: 1;
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 700;
            color: var(--text-dark);
            font-size: var(--font-body);
            user-select: none;
            transition: background var(--transition);
            gap: 12px;
        }

        .faq-question:hover {
            background: rgba(184, 230, 46, 0.04);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            transition: transform var(--transition), background var(--transition);
            font-size: 1rem;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-gray);
            font-size: var(--font-sm);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--primary);
            padding: 70px 0;
            text-align: center;
            color: var(--white);
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--white);
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            font-size: var(--font-body);
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 800;
            font-size: var(--font-h4);
            border-radius: var(--radius-pill);
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-cta-large:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(184, 230, 46, 0.4);
            color: var(--primary);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 24px;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            text-decoration: none;
            transition: background var(--transition), color var(--transition), border-color var(--transition);
            background: transparent;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.5);
            color: var(--white);
        }

        .btn-outline-light:hover {
            background: var(--white);
            color: var(--primary);
            border-color: var(--white);
        }

        /* ========== 非对称Grid ========== */
        .asymmetric-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .asymmetric-grid.reverse {
            grid-template-columns: 1fr 1.2fr;
        }

        .asymmetric-grid .grid-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
            aspect-ratio: 16/11;
            object-fit: cover;
        }

        @media screen and (max-width: 768px) {
            .asymmetric-grid,
            .asymmetric-grid.reverse {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .asymmetric-grid .grid-image {
                order: -1;
            }
        }

        /* ========== 流程步骤 ========== */
        .steps-list {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .steps-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 24px;
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .steps-list li:hover {
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }

        .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .step-content h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .step-content p {
            color: var(--text-gray);
            font-size: var(--font-sm);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
            font-size: var(--font-sm);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: var(--white);
            font-weight: 800;
            font-size: var(--font-h4);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-links h4 {
            color: var(--white);
            font-weight: 700;
            font-size: var(--font-h4);
            margin-bottom: 12px;
        }

        .footer-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links ul li {
            margin-bottom: 8px;
        }

        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
            font-size: var(--font-sm);
        }

        .footer-links ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.25);
        }

        @media screen and (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ========== 标签组件 ========== */
        .tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: var(--radius-pill);
            font-size: var(--font-xs);
            font-weight: 600;
            background: rgba(184, 230, 46, 0.15);
            color: var(--primary);
        }

        .tag-accent {
            background: var(--accent);
            color: var(--primary);
        }

        .tag-outline {
            background: transparent;
            border: 1.5px solid var(--border);
            color: var(--text-gray);
        }

        /* ========== 工具类 ========== */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 32px;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .gap-2 {
            gap: 16px;
        }
        .gap-3 {
            gap: 24px;
        }
        .gap-4 {
            gap: 32px;
        }

        @media screen and (max-width: 640px) {
            .stat-number {
                font-size: 2rem;
            }
            .card {
                padding: 20px;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }

/* roulang page: category6 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media (max-width: 640px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184, 230, 46, 0.35);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .desktop-only {
            display: inline-flex;
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .hamburger:hover {
            background: rgba(184, 230, 46, 0.1);
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .desktop-only {
                display: none !important;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                height: 0;
                overflow: hidden;
                flex-direction: column;
                background: var(--white);
                gap: 0;
                transition: height var(--transition-slow), padding var(--transition-slow);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.10);
                padding: 0 20px;
                z-index: 999;
            }
            .nav-links.open {
                height: auto;
                padding: 12px 20px 20px;
                overflow-y: auto;
                max-height: calc(100vh - var(--nav-height));
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: var(--font-body);
                border-radius: var(--radius);
                width: 100%;
                text-align: left;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(184, 230, 46, 0.12);
                border-left: 3px solid var(--accent);
            }
            .nav-cta-mobile-wrap {
                display: block;
                padding-top: 8px;
            }
            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                padding: 14px 20px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: var(--font-body);
                border-radius: var(--radius-pill);
                text-decoration: none;
                transition: background var(--transition);
            }
            .nav-cta-mobile:hover {
                background: var(--accent-hover);
                color: var(--primary);
            }
        }

        /* ========== PAGE HERO ========== */
        .page-hero {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 43, 0.88) 0%, rgba(26, 42, 43, 0.72) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            width: 100%;
        }

        .page-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }

        .page-hero h1 {
            color: var(--white);
            font-size: var(--font-h1);
            font-weight: 800;
            margin: 0 0 16px;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }

        .page-hero .hero-subtitle {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            max-width: 620px;
            line-height: 1.7;
            margin: 0;
        }

        @media (max-width: 640px) {
            .page-hero {
                min-height: 280px;
            }
            .page-hero .hero-content {
                padding: 40px 0;
            }
            .page-hero h1 {
                font-size: var(--font-h2);
            }
            .page-hero .hero-subtitle {
                font-size: var(--font-body);
            }
        }

        /* ========== SECTION COMMONS ========== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--white);
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: var(--white);
        }

        .section-subtitle {
            font-size: var(--font-body);
            color: var(--text-gray);
            margin: 0 0 40px;
            max-width: 680px;
            line-height: 1.7;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: var(--font-h3);
            }
            .section-subtitle {
                margin-bottom: 28px;
            }
        }

        /* ========== CARDS ========== */
        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px 24px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            border: 1px solid transparent;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: var(--border-light);
        }

        .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card h3 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .card p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.7;
        }

        .card-tag {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 600;
            color: var(--primary);
            background: rgba(184, 230, 46, 0.2);
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
        }

        /* ========== STAT BLOCK ========== */
        .stat-block {
            text-align: center;
            padding: 20px;
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: var(--font-sm);
            color: var(--text-gray);
            font-weight: 500;
        }
        .section-dark .stat-label {
            color: rgba(255, 255, 255, 0.65);
        }

        @media (max-width: 640px) {
            .stat-number {
                font-size: 1.8rem;
            }
        }

        /* ========== TERM LIST ========== */
        .term-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .term-list li {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
            cursor: default;
        }
        .term-list li:last-child {
            border-bottom: none;
        }
        .term-list li:hover {
            background: rgba(184, 230, 46, 0.04);
        }
        .term-list .term-word {
            font-weight: 700;
            color: var(--text-dark);
            font-size: var(--font-body);
            margin-bottom: 4px;
        }
        .term-list .term-def {
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.6;
            margin: 0;
        }
        .term-list .term-cat {
            display: inline-block;
            font-size: var(--font-xs);
            color: var(--accent-hover);
            font-weight: 600;
            margin-right: 8px;
            background: rgba(184, 230, 46, 0.12);
            padding: 2px 8px;
            border-radius: var(--radius-sm);
        }

        /* ========== FAQ ========== */
        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--text-dark);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            line-height: 1.5;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            color: var(--primary);
            transition: transform var(--transition), background var(--transition);
            font-weight: 700;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: var(--font-sm);
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: var(--primary);
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -60px;
            width: 200px;
            height: 200px;
            background: rgba(184, 230, 46, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-section h2 {
            color: var(--white);
            font-size: var(--font-h2);
            font-weight: 800;
            margin: 0 0 12px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            margin: 0 0 28px;
            font-size: var(--font-body);
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(184, 230, 46, 0.4);
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 12px 28px;
            background: transparent;
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            border: 2px solid var(--primary);
            text-decoration: none;
            transition: all var(--transition);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 44px 0;
            }
            .cta-section h2 {
                font-size: var(--font-h3);
            }
            .btn-cta {
                padding: 12px 24px;
                font-size: var(--font-sm);
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== IMAGE BLOCK ========== */
        .img-rounded {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
            object-fit: cover;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
            font-size: var(--font-sm);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h4 {
            color: var(--white);
            font-size: var(--font-h4);
            font-weight: 800;
            margin: 0 0 12px;
        }
        .footer-brand p {
            margin: 0;
            line-height: 1.7;
            font-size: var(--font-sm);
        }
        .footer-links h4 {
            color: var(--white);
            font-size: var(--font-h4);
            font-weight: 700;
            margin: 0 0 12px;
        }
        .footer-links ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 6px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: var(--font-sm);
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 16px;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
            justify-content: center;
            text-align: center;
        }
        .footer-bottom a {
            color: var(--accent);
            font-size: var(--font-xs);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            text-decoration: underline;
            color: var(--accent-hover);
        }
        .footer-sep {
            color: rgba(255, 255, 255, 0.2);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                gap: 4px;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-20 {
            margin-bottom: 20px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }
        .mb-48 {
            margin-bottom: 48px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .gap-16 {
            gap: 16px;
        }
        .gap-24 {
            gap: 24px;
        }
        .gap-32 {
            gap: 32px;
        }

/* roulang page: category4 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media (max-width: 640px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            flex-shrink: 0;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            border: none;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184, 230, 46, 0.35);
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }

        .desktop-only {
            display: inline-flex;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .desktop-only {
                display: none;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 24px 32px;
                gap: 4px;
                box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
                transition: right var(--transition-slow);
                z-index: 999;
                overflow-y: auto;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                width: 100%;
                padding: 12px 16px;
                font-size: var(--font-body);
                border-radius: var(--radius);
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(184, 230, 46, 0.12);
                border-left: 4px solid var(--accent);
            }
            .nav-cta-mobile-wrap {
                display: block;
                width: 100%;
                margin-top: 12px;
            }
            .nav-cta-mobile {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 100%;
                padding: 14px 20px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: var(--font-body);
                border-radius: var(--radius-pill);
                text-decoration: none;
                transition: background var(--transition);
            }
            .nav-cta-mobile:hover {
                background: var(--accent-hover);
                color: var(--primary);
            }
            .menu-overlay {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.4);
                z-index: 998;
                display: none;
                transition: opacity var(--transition-slow);
            }
            .menu-overlay.show {
                display: block;
            }
        }

        /* ========== HERO ========== */
        .page-hero {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 42, 43, 0.88) 0%, rgba(26, 42, 43, 0.72) 40%, rgba(26, 42, 43, 0.55) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .page-hero .hero-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .page-hero .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero {
                min-height: auto;
                padding: 40px 0;
            }
        }

        .page-hero .hero-text h1 {
            font-size: var(--font-h1);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 16px;
            line-height: 1.3;
        }

        .page-hero .hero-text h1 span {
            color: var(--accent);
        }

        .page-hero .hero-text .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 28px;
            line-height: 1.6;
        }

        .page-hero .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            border: none;
            cursor: pointer;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(184, 230, 46, 0.4);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            background: transparent;
            color: var(--white);
            font-weight: 600;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            border: 2px solid rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(184, 230, 46, 0.08);
        }

        .hero-progress-panel {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-progress-panel .progress-title {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--white);
            margin: 0 0 6px;
        }

        .hero-progress-panel .progress-desc {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.7);
            margin: 0 0 20px;
        }

        .progress-item {
            margin-bottom: 16px;
        }

        .progress-item:last-child {
            margin-bottom: 0;
        }

        .progress-item .progress-label {
            display: flex;
            justify-content: space-between;
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 6px;
            font-weight: 600;
        }

        .progress-item .progress-label span {
            color: var(--accent);
        }

        .progress-bar-wrap {
            height: 8px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            overflow: hidden;
        }

        .progress-bar-fill {
            height: 100%;
            background: var(--accent);
            border-radius: 10px;
            transition: width 1.2s ease;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
        }

        .section-white {
            background: var(--white);
        }

        .section-warm {
            background: var(--bg-warm);
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-dark .section-title {
            color: var(--white);
        }

        .section-subtitle {
            font-size: var(--font-body);
            color: var(--text-gray);
            margin: 0 0 40px;
            line-height: 1.6;
            max-width: 700px;
        }

        .section-dark .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* Strategy Cards */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        @media (max-width: 1024px) {
            .strategy-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .strategy-grid {
                grid-template-columns: 1fr;
            }
        }

        .strategy-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .strategy-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent);
        }

        .strategy-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .strategy-card h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0;
            line-height: 1.3;
        }

        .strategy-card p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.6;
        }

        .strategy-card .card-link {
            font-weight: 700;
            font-size: var(--font-sm);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            transition: color var(--transition);
        }

        .strategy-card .card-link:hover {
            color: var(--accent-hover);
        }

        .strategy-card .card-link i {
            transition: transform var(--transition);
        }

        .strategy-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* Flow Steps */
        .flow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        @media (max-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .flow-steps {
                grid-template-columns: 1fr;
            }
        }

        .flow-step {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }

        .flow-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .flow-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
        }

        .flow-step h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
        }

        .flow-step p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.5;
        }

        /* Info Block */
        .info-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        @media (max-width: 768px) {
            .info-block {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        .info-block.reverse {
            direction: rtl;
        }

        .info-block.reverse>* {
            direction: ltr;
        }

        .info-block .info-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .info-block .info-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .info-block .info-text h3 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 14px;
            line-height: 1.3;
        }

        .info-block .info-text p {
            font-size: var(--font-body);
            color: var(--text-body);
            margin: 0 0 12px;
            line-height: 1.7;
        }

        .info-block .info-text .info-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
        }

        .info-block .info-text .info-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: var(--font-body);
            color: var(--text-body);
            line-height: 1.6;
        }

        .info-block .info-text .info-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--accent);
            font-weight: 700;
            font-size: 1rem;
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }

        .stat-card {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: all var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent);
        }

        .stat-card .stat-number {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--accent);
            margin: 0 0 6px;
            line-height: 1;
        }

        .stat-card .stat-label {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.8);
            margin: 0;
        }

        /* FAQ */
        .faq-section .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
        }

        .faq-section .accordion-item {
            border-bottom: 1px solid var(--border-light);
            background: var(--white);
        }

        .faq-section .accordion-item:last-child {
            border-bottom: none;
        }

        .faq-section .accordion-title {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            line-height: 1.5;
        }

        .faq-section .accordion-title:hover {
            background: rgba(184, 230, 46, 0.04);
            color: var(--primary);
        }

        .faq-section .accordion-title::before {
            content: '+';
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
            transition: all var(--transition);
        }

        .faq-section .accordion-item.is-active .accordion-title::before {
            content: '−';
            background: var(--accent);
            color: var(--primary);
        }

        .faq-section .accordion-content {
            padding: 0 20px 18px 60px;
            font-size: var(--font-body);
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }

        .faq-section .accordion-item.is-active .accordion-content {
            display: block;
        }

        .faq-section .accordion-content p {
            margin: 0;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 64px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 12px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            margin: 0 0 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            font-size: 1.05rem;
            padding: 15px 32px;
        }

        .cta-section .cta-note {
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
            margin-top: 14px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 24px;
            font-size: var(--font-sm);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-brand h4 {
            font-size: var(--font-h4);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 10px;
        }

        .footer-brand p {
            margin: 0;
            line-height: 1.6;
            color: rgba(255, 255, 255, 0.6);
        }

        .footer-links h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--white);
            margin: 0 0 10px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links ul li {
            margin-bottom: 6px;
        }

        .footer-links ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color var(--transition);
            font-size: var(--font-sm);
        }

        .footer-links ul li a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .footer-bottom a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-bottom a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.25);
        }

        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
            .footer-sep {
                display: none;
            }
        }

        /* Utility */
        .text-center {
            text-align: center;
        }

        .mb-0 {
            margin-bottom: 0;
        }

        .mt-0 {
            margin-top: 0;
        }

        /* Foundation overrides */
        .accordion {
            background: transparent;
        }

        .accordion-item {
            background: transparent;
        }

        .accordion-title {
            background: transparent;
            border: none;
            color: inherit;
        }

        .accordion-content {
            background: transparent;
            border: none;
        }

/* roulang page: category5 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media (max-width: 768px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(184, 230, 46, 0.35);
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            line-height: 1;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
                z-index: 1001;
            }
            .nav-links {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--white);
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 28px 32px;
                gap: 4px;
                box-shadow: -4px 0 24px rgba(0, 0, 0, 0.12);
                transition: right var(--transition-slow);
                z-index: 1000;
                overflow-y: auto;
            }
            .nav-links.open {
                right: 0;
            }
            .nav-links a {
                font-size: 1rem;
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius);
            }
            .nav-links a.active::after {
                bottom: 4px;
                left: 16px;
                right: 16px;
            }
            .nav-cta-mobile-wrap {
                display: block;
                width: 100%;
                margin-top: 12px;
            }
            .nav-cta-mobile {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 100%;
                padding: 14px 24px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: 1rem;
                border-radius: var(--radius-pill);
                text-decoration: none;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .nav-links .desktop-only {
                display: none;
            }
        }

        @media (min-width: 769px) {
            .nav-cta-mobile-wrap {
                display: none;
            }
            .nav-cta-mobile {
                display: none;
            }
        }

        /* ========== HERO - 资源下载站风格 ========== */
        .hero-news {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            min-height: 65vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 80px 20px;
        }

        .hero-news::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 42, 43, 0.82);
            z-index: 1;
        }

        .hero-news-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            width: 100%;
        }

        .hero-news h1 {
            font-size: var(--font-h1);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 16px;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }

        .hero-news h1 .highlight {
            color: var(--accent);
        }

        .hero-news .hero-subtitle {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            margin: 0 0 32px;
            line-height: 1.6;
        }

        .hero-search-wrap {
            display: flex;
            max-width: 560px;
            margin: 0 auto 28px;
            background: var(--white);
            border-radius: var(--radius-pill);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .hero-search-wrap input {
            flex: 1;
            border: none;
            padding: 16px 22px;
            font-size: 1rem;
            outline: none;
            color: var(--text-dark);
            background: transparent;
            min-width: 0;
        }

        .hero-search-wrap input::placeholder {
            color: var(--text-light);
        }

        .hero-search-wrap button {
            flex-shrink: 0;
            background: var(--accent);
            border: none;
            color: var(--primary);
            font-weight: 700;
            padding: 16px 28px;
            font-size: 1rem;
            cursor: pointer;
            transition: background var(--transition);
            white-space: nowrap;
        }

        .hero-search-wrap button:hover {
            background: var(--accent-hover);
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            align-items: center;
        }

        .hero-tags span {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.7);
            margin-right: 4px;
        }

        .hero-tag {
            display: inline-block;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--white);
            border-radius: var(--radius-pill);
            font-size: var(--font-sm);
            font-weight: 600;
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .hero-tag:hover {
            background: var(--accent);
            color: var(--primary);
            border-color: var(--accent);
        }

        @media (max-width: 640px) {
            .hero-news {
                min-height: 55vh;
                padding: 60px 16px;
            }
            .hero-news h1 {
                font-size: 1.5rem;
            }
            .hero-news .hero-subtitle {
                font-size: 0.95rem;
            }
            .hero-search-wrap input {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .hero-search-wrap button {
                padding: 14px 18px;
                font-size: 0.9rem;
            }
            .hero-tag {
                padding: 6px 14px;
                font-size: var(--font-xs);
            }
        }

        /* ========== SECTION通用 ========== */
        .section {
            padding: 80px 0;
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
        }

        .section-white {
            background: var(--white);
        }

        .section-warm {
            background: var(--bg-warm);
        }

        .section-label {
            display: inline-block;
            font-size: var(--font-xs);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent);
            background: rgba(184, 230, 46, 0.1);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

        .section-title {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 16px;
            line-height: 1.35;
        }

        .section-dark .section-title {
            color: var(--white);
        }

        .section-desc {
            font-size: var(--font-body);
            color: var(--text-gray);
            line-height: 1.7;
            max-width: 680px;
            margin: 0 auto 40px;
        }

        .section-dark .section-desc {
            color: rgba(255, 255, 255, 0.7);
        }

        @media (max-width: 640px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
        }

        /* ========== 覆盖范围 非对称Grid ========== */
        .coverage-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 0.8fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }

        .coverage-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .coverage-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .coverage-card.card-large {
            grid-row: span 2;
        }

        .coverage-card.card-wide {
            grid-column: span 2;
            flex-direction: row;
            align-items: center;
            gap: 24px;
        }

        .coverage-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .coverage-card.card-wide .card-icon {
            margin-bottom: 0;
        }

        .coverage-card h3 {
            font-size: var(--font-h3);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 8px;
        }

        .coverage-card p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0;
            line-height: 1.6;
        }

        .coverage-card .card-img {
            border-radius: var(--radius);
            overflow: hidden;
            margin-top: auto;
            flex-shrink: 0;
        }

        .coverage-card .card-img img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius);
        }

        @media (max-width: 768px) {
            .coverage-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
                gap: 14px;
            }
            .coverage-card.card-large {
                grid-column: span 2;
                grid-row: auto;
            }
            .coverage-card.card-wide {
                grid-column: span 2;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .coverage-grid {
                grid-template-columns: 1fr;
            }
            .coverage-card.card-large,
            .coverage-card.card-wide {
                grid-column: span 1;
            }
        }

        /* ========== 深度内容区 双栏图文 ========== */
        .deep-content-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .deep-content-text h3 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--text-dark);
            margin: 0 0 20px;
            line-height: 1.35;
        }

        .deep-content-text p {
            font-size: var(--font-body);
            color: var(--text-body);
            line-height: 1.8;
            margin: 0 0 16px;
        }

        .deep-content-text .feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }

        .deep-content-text .feature-list li {
            padding: 8px 0 8px 28px;
            position: relative;
            font-size: var(--font-sm);
            color: var(--text-body);
            line-height: 1.6;
        }

        .deep-content-text .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--accent);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .deep-content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .deep-content-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        @media (max-width: 768px) {
            .deep-content-row {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .deep-content-image {
                order: -1;
            }
        }

        /* ========== 数据指标 ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }

        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 32px 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 400px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
            }
        }

        /* ========== 资讯卡片列表 ========== */
        .news-card-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .news-card .news-card-img {
            height: 180px;
            overflow: hidden;
        }

        .news-card .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .news-card:hover .news-card-img img {
            transform: scale(1.04);
        }

        .news-card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-body .news-date {
            font-size: var(--font-xs);
            color: var(--text-light);
            margin-bottom: 8px;
        }

        .news-card-body h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--text-dark);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .news-card-body p {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin: 0 0 16px;
            line-height: 1.6;
            flex: 1;
        }

        .news-card-body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            font-size: var(--font-sm);
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
            margin-top: auto;
        }

        .news-card-body .read-more:hover {
            color: var(--accent-hover);
        }

        .news-card-body .read-more i {
            transition: transform var(--transition);
        }

        .news-card-body .read-more:hover i {
            transform: translateX(4px);
        }

        @media (max-width: 768px) {
            .news-card-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .news-card-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            margin-bottom: 10px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 20px;
            font-size: var(--font-body);
            font-weight: 700;
            color: var(--text-dark);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition);
            line-height: 1.5;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--primary);
            transition: transform var(--transition), background var(--transition);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 20px;
        }

        .faq-answer p {
            margin: 0;
            font-size: var(--font-sm);
            color: var(--text-gray);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 80px 0;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26, 42, 43, 0.88);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: var(--font-h2);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 16px;
        }

        .cta-section p {
            font-size: var(--font-body);
            color: rgba(255, 255, 255, 0.8);
            margin: 0 auto 32px;
            max-width: 560px;
            line-height: 1.7;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 1rem;
            border-radius: var(--radius-pill);
            text-decoration: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(184, 230, 46, 0.4);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: var(--white);
            font-weight: 700;
            font-size: 0.95rem;
            border-radius: var(--radius-pill);
            text-decoration: none;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: border-color var(--transition), color var(--transition), background var(--transition);
            margin-left: 14px;
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(184, 230, 46, 0.05);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 50px 16px;
            }
            .btn-cta,
            .btn-outline {
                display: flex;
                width: 100%;
                justify-content: center;
                margin: 8px 0;
            }
            .btn-outline {
                margin-left: 0;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 28px;
            font-size: var(--font-sm);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h4 {
            font-size: var(--font-h4);
            font-weight: 800;
            color: var(--white);
            margin: 0 0 12px;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin: 0;
        }

        .footer-links h4 {
            font-size: var(--font-h4);
            font-weight: 700;
            color: var(--white);
            margin: 0 0 14px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: var(--font-sm);
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: var(--accent);
            text-decoration: none;
            font-size: var(--font-xs);
        }

        .footer-bottom a:hover {
            text-decoration: underline;
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.25);
            margin: 0 6px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                grid-column: span 2;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-brand {
                grid-column: span 1;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1A2A2B;
            --primary-light: #243636;
            --accent: #B8E62E;
            --accent-hover: #A0CC28;
            --accent-red: #C0392B;
            --bg-warm: #F5F0EB;
            --white: #FFFFFF;
            --text-dark: #1A2A2B;
            --text-body: #3D3D3D;
            --text-gray: #6B6B6B;
            --text-light: #9A9A9A;
            --border: #E0DCD7;
            --border-light: #EDE9E4;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
            --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --radius-sm: 6px;
            --radius: 8px;
            --radius-lg: 12px;
            --radius-xl: 20px;
            --radius-pill: 30px;
            --font-h1: 2.25rem;
            --font-h2: 1.75rem;
            --font-h3: 1.35rem;
            --font-h4: 1.15rem;
            --font-body: 1rem;
            --font-sm: 0.875rem;
            --font-xs: 0.8rem;
            --line-height: 1.7;
            --transition: 0.2s ease;
            --transition-slow: 0.3s ease;
            --nav-height: 68px;
            --container-max: 1200px;
        }

        @media (max-width: 768px) {
            :root {
                --font-h1: 1.6rem;
                --font-h2: 1.35rem;
                --font-h3: 1.15rem;
                --font-h4: 1.05rem;
                --font-body: 0.95rem;
                --nav-height: 56px;
            }
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
            font-size: var(--font-body);
            line-height: var(--line-height);
            color: var(--text-body);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
            padding-top: var(--nav-height);
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent-hover);
        }

        a:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button {
            cursor: pointer;
            font-family: inherit;
        }

        input,
        textarea,
        select {
            font-family: inherit;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--primary);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            color: var(--primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 14px;
            font-size: var(--font-sm);
            font-weight: 600;
            color: var(--text-body);
            border-radius: var(--radius-sm);
            position: relative;
            white-space: nowrap;
            transition: color var(--transition), background var(--transition);
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(184, 230, 46, 0.08);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 22px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-sm);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: background var(--transition), transform var(--transition);
            text-decoration: none;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: scale(1.03);
        }

        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
        }

        .nav-cta-mobile-wrap {
            display: none;
        }

        .desktop-only {
            display: inline-flex;
        }

        @media (max-width: 1024px) {
            .nav-links a {
                padding: 6px 10px;
                font-size: var(--font-xs);
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                height: 0;
                overflow: hidden;
                flex-direction: column;
                background: var(--white);
                gap: 0;
                transition: height var(--transition-slow), padding var(--transition-slow);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
                z-index: 999;
                padding: 0;
            }
            .nav-links.open {
                height: auto;
                padding: 20px 0;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links a {
                padding: 14px 24px;
                font-size: 1rem;
                border-radius: 0;
                width: 100%;
            }
            .nav-links a.active::after {
                display: none;
            }
            .nav-links a.active {
                background: rgba(184, 230, 46, 0.12);
                border-left: 4px solid var(--accent);
            }
            .nav-cta-mobile-wrap {
                display: block;
                padding: 12px 24px;
            }
            .nav-cta-mobile {
                display: block;
                width: 100%;
                text-align: center;
                padding: 14px 24px;
                background: var(--accent);
                color: var(--primary);
                font-weight: 700;
                font-size: 1rem;
                border-radius: var(--radius-pill);
                text-decoration: none;
            }
            .desktop-only {
                display: none;
            }
        }

        .section {
            padding: 80px 0;
        }

        @media (max-width: 768px) {
            .section {
                padding: 50px 0;
            }
        }

        .section-dark {
            background: var(--primary);
            color: var(--white);
        }

        .section-dark h2,
        .section-dark h3 {
            color: var(--white);
        }

        .section-dark .text-muted {
            color: rgba(255, 255, 255, 0.65);
        }

        .section-warm {
            background: var(--bg-warm);
        }

        .section-white {
            background: var(--white);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: var(--font-body);
            border-radius: var(--radius-pill);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            font-family: inherit;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: scale(1.03);
            box-shadow: 0 6px 20px rgba(184, 230, 46, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--white);
            border-color: var(--primary);
        }

        .btn-outline-light {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: var(--white);
            color: var(--primary);
            border-color: var(--white);
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 1.1rem;
        }

        .card {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 28px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .card-highlight {
            border: 2px solid var(--accent);
            position: relative;
            box-shadow: var(--shadow-md);
        }

        .card-highlight::before {
            content: '推荐';
            position: absolute;
            top: -14px;
            right: 20px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.03em;
        }

        .badge {
            display: inline-block;
            padding: 4px 12px;
            font-size: var(--font-xs);
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: rgba(184, 230, 46, 0.2);
            color: var(--primary);
        }

        .badge-accent {
            background: var(--accent);
            color: var(--primary);
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }

        .stat-number-light {
            color: var(--accent);
        }

        .stat-label {
            font-size: var(--font-sm);
            color: var(--text-gray);
            margin-top: 4px;
        }

        .section-dark .stat-label {
            color: rgba(255, 255, 255, 0.6);
        }

        .accordion-custom {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .accordion-custom .accordion-item {
            background: var(--white);
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }

        .accordion-custom .accordion-item:hover {
            box-shadow: var(--shadow);
        }

        .accordion-custom .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 700;
            font-size: var(--font-body);
            color: var(--text-dark);
            cursor: pointer;
            background: var(--white);
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
            gap: 12px;
        }

        .accordion-custom .accordion-title:hover {
            color: var(--primary);
        }

        .accordion-custom .accordion-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--primary);
            transition: transform var(--transition-slow), background var(--transition);
            font-size: 1.2rem;
        }

        .accordion-custom .accordion-item.is-active .accordion-icon {
            transform: rotate(45deg);
            background: var(--accent);
        }

        .accordion-custom .accordion-content {
            display: none;
            padding: 0 24px 20px;
            color: var(--text-body);
            line-height: var(--line-height);
        }

        .accordion-custom .accordion-item.is-active .accordion-content {
            display: block;
        }

        .hero-vip {
            position: relative;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            min-height: 70vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero-vip::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(26, 42, 43, 0.92) 0%, rgba(26, 42, 43, 0.78) 100%);
            z-index: 1;
        }

        .hero-vip-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 0;
        }

        .status-bar {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-pill);
            padding: 8px 20px;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(184, 230, 46, 0.6);
            }
            50% {
                box-shadow: 0 0 0 12px rgba(184, 230, 46, 0);
            }
        }

        .icon-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 28px;
        }

        .icon-matrix-item {
            width: 56px;
            height: 56px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: all var(--transition);
            cursor: default;
        }

        .icon-matrix-item:hover {
            background: rgba(184, 230, 46, 0.2);
            border-color: var(--accent);
            transform: translateY(-3px);
        }

        .tier-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .tier-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .tier-card.featured {
            border-color: var(--accent);
            box-shadow: var(--shadow-md);
            position: relative;
            background: linear-gradient(180deg, #FFFFFF 0%, #F8FBE9 100%);
        }

        .tier-card.featured::before {
            content: '最受欢迎';
            position: absolute;
            top: -13px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: var(--font-xs);
            padding: 5px 18px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            letter-spacing: 0.03em;
        }

        .tier-name {
            font-size: var(--font-h3);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .tier-price {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
            margin: 12px 0;
            letter-spacing: -0.02em;
        }

        .tier-price span {
            font-size: var(--font-body);
            font-weight: 400;
            color: var(--text-gray);
        }

        .tier-features {
            list-style: none;
            padding: 0;
            margin: 20px 0;
            text-align: left;
            flex: 1;
        }

        .tier-features li {
            padding: 8px 0;
            font-size: var(--font-sm);
            color: var(--text-body);
            display: flex;
            align-items: flex-start;
            gap: 8px;
            border-bottom: 1px solid var(--border-light);
        }

        .tier-features li:last-child {
            border-bottom: none;
        }

        .tier-features .check-icon {
            color: var(--accent-hover);
            flex-shrink: 0;
            margin-top: 2px;
        }

        .step-list {
            list-style: none;
            padding: 0;
            counter-reset: step-counter;
        }

        .step-list li {
            counter-increment: step-counter;
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
            position: relative;
        }

        .step-list li:last-child {
            border-bottom: none;
        }

        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-weight: 900;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding: 60px 0 40px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
                padding: 40px 0 30px;
            }
        }

        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
        }

        .site-footer h4 {
            color: var(--white);
            font-weight: 700;
            margin-bottom: 16px;
            font-size: var(--font-h4);
        }

        .site-footer a {
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition);
        }

        .site-footer a:hover {
            color: var(--accent);
        }

        .site-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer ul li {
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            font-size: var(--font-xs);
            color: rgba(255, 255, 255, 0.5);
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        .footer-sep {
            color: rgba(255, 255, 255, 0.3);
        }

        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .hero-vip {
                min-height: 60vh;
            }
            .tier-card {
                margin-bottom: 20px;
            }
            .icon-matrix {
                gap: 10px;
            }
            .icon-matrix-item {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
        }

        .grid-container {
            max-width: var(--container-max);
        }

        .feature-icon-circle {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(184, 230, 46, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
            margin-bottom: 16px;
        }

        .text-muted {
            color: var(--text-gray);
        }

        .text-accent {
            color: var(--accent-hover);
        }

        .mb-0 {
            margin-bottom: 0;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 32px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .text-center {
            text-align: center;
        }