/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0D2137;
            --primary-light: #1A3A5C;
            --primary-dark: #081729;
            --secondary: #E63946;
            --secondary-hover: #c92e3a;
            --accent: #F4A261;
            --accent-light: #f7b87a;
            --bg: #F8F9FA;
            --bg-dark: #0D2137;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #6c757d;
            --text-on-dark: #ffffff;
            --text-muted: #adb5bd;
            --border: #e9ecef;
            --border-light: #f1f3f5;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
            --radius: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-xs: 4px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            margin-bottom: 0.5rem;
            color: var(--text);
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
            color: var(--text-light);
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }
        .container-fluid {
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 50px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            color: var(--text);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 2.5rem;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 0 auto 1.5rem;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(13, 33, 55, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: var(--nav-height);
            transition: background var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            text-decoration: none;
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .site-logo i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .site-logo span {
            background: linear-gradient(135deg, #fff 60%, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-card {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50px;
            padding: 4px 6px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-card .nav-item {
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-card .nav-item:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }
        .nav-card .nav-item.active {
            color: #fff;
            background: var(--secondary);
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--secondary), #c92e3a);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.4);
            color: #fff;
        }
        .nav-cta i {
            font-size: 0.85rem;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-xs);
        }
        .nav-toggle:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* Mobile Nav Drawer */
        .nav-drawer {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(13, 33, 55, 0.98);
            backdrop-filter: blur(12px);
            z-index: 1040;
            padding: 30px 24px;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .nav-drawer.open {
            transform: translateX(0);
        }
        .nav-drawer .nav-item {
            display: block;
            padding: 14px 20px;
            font-size: 1.1rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
            border-radius: var(--radius-md);
            text-decoration: none;
            transition: all var(--transition);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .nav-drawer .nav-item:hover,
        .nav-drawer .nav-item.active {
            color: #fff;
            background: rgba(230, 57, 70, 0.2);
            padding-left: 28px;
        }
        .nav-drawer .nav-item.active {
            color: var(--secondary);
            font-weight: 600;
        }
        .nav-drawer .nav-cta-mobile {
            display: block;
            margin-top: 24px;
            padding: 14px 28px;
            background: var(--secondary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            text-align: center;
            text-decoration: none;
            transition: all var(--transition);
        }
        .nav-drawer .nav-cta-mobile:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            padding-top: var(--nav-height);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 33, 55, 0.88) 0%, rgba(13, 33, 55, 0.55) 50%, rgba(13, 33, 55, 0.75) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(230, 57, 70, 0.2);
            border: 1px solid rgba(230, 57, 70, 0.3);
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.75rem;
            color: var(--secondary);
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.15;
            margin-bottom: 1rem;
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent), #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            margin-top: 1rem;
        }
        .hero-actions .btn-primary-custom {
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--secondary), #c92e3a);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(230, 57, 70, 0.45);
        }
        .hero-actions .btn-outline-custom {
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-actions .btn-outline-custom:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
            background: rgba(244, 162, 97, 0.1);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 3.5rem;
            padding-top: 2.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stats .stat-number .accent {
            color: var(--accent);
        }
        .hero-stats .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ===== Intro Section ===== */
        .intro-section {
            background: #fff;
        }
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .intro-image:hover img {
            transform: scale(1.03);
        }
        .intro-image .image-tag {
            position: absolute;
            bottom: 16px;
            left: 16px;
            padding: 6px 16px;
            background: rgba(13, 33, 55, 0.85);
            backdrop-filter: blur(8px);
            border-radius: 40px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .intro-content h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
        }
        .intro-content .tagline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: rgba(230, 57, 70, 0.08);
            border-radius: 40px;
            color: var(--secondary);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1rem;
        }
        .intro-content p {
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 1.5rem;
        }
        .intro-features .feat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            background: var(--bg);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
        }
        .intro-features .feat-item i {
            color: var(--secondary);
            font-size: 1rem;
            width: 20px;
            text-align: center;
        }

        /* ===== Categories Section ===== */
        .categories-section {
            background: var(--bg);
        }
        .category-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-decoration: none;
            color: var(--text);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
            color: var(--text);
        }
        .category-card .cat-icon {
            width: 68px;
            height: 68px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 1rem;
            transition: transform var(--transition);
        }
        .category-card:hover .cat-icon {
            transform: scale(1.1);
        }
        .category-card .cat-icon.red {
            background: linear-gradient(135deg, #E63946, #c92e3a);
        }
        .category-card .cat-icon.orange {
            background: linear-gradient(135deg, #F4A261, #e08f4a);
        }
        .category-card .cat-icon.blue {
            background: linear-gradient(135deg, #1A3A5C, #0D2137);
        }
        .category-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .category-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 1rem;
            flex: 1;
        }
        .category-card .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: var(--bg);
            border-radius: 40px;
            font-size: 0.8rem;
            color: var(--text-light);
        }
        .category-card .cat-tag i {
            color: var(--secondary);
            font-size: 0.7rem;
        }

        /* ===== Latest News (CMS) ===== */
        .news-section {
            background: #fff;
        }
        .news-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .news-card .news-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-bottom: 3px solid var(--secondary);
        }
        .news-card .news-body {
            padding: 20px 22px 22px;
        }
        .news-card .news-category {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 40px;
            background: rgba(230, 57, 70, 0.1);
            color: var(--secondary);
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }
        .news-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card h4 a {
            color: var(--text);
            text-decoration: none;
            transition: color var(--transition);
        }
        .news-card h4 a:hover {
            color: var(--secondary);
        }
        .news-card .news-excerpt {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .news-card .news-meta i {
            margin-right: 4px;
            font-size: 0.75rem;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .news-empty i {
            font-size: 2.5rem;
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .news-empty p {
            font-size: 1.05rem;
            color: var(--text-light);
        }

        /* ===== Process Section ===== */
        .process-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
        }
        .process-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(13, 33, 55, 0.88);
            z-index: 1;
        }
        .process-section .container {
            position: relative;
            z-index: 2;
        }
        .process-section .section-title {
            color: #fff;
        }
        .process-section .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-section .section-divider {
            background: var(--accent);
        }
        .process-step {
            text-align: center;
            padding: 28px 20px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(8px);
            transition: all var(--transition);
            height: 100%;
        }
        .process-step:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: rgba(244, 162, 97, 0.3);
        }
        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .process-step h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .process-step p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 0;
        }
        .process-step .step-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 0.75rem;
        }

        /* ===== Advantages Section ===== */
        .advantages-section {
            background: #fff;
        }
        .advantage-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            height: 100%;
            text-align: center;
        }
        .advantage-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .advantage-card .adv-icon {
            font-size: 2.2rem;
            color: var(--secondary);
            margin-bottom: 1rem;
        }
        .advantage-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .advantage-card p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0;
        }
        .advantage-card .adv-badge {
            display: inline-block;
            margin-top: 12px;
            padding: 2px 12px;
            background: rgba(244, 162, 97, 0.15);
            border-radius: 40px;
            color: var(--accent);
            font-size: 0.78rem;
            font-weight: 500;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg);
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(13, 33, 55, 0.02);
        }
        .faq-item .faq-question:focus {
            outline: 2px solid var(--primary-light);
            outline-offset: -2px;
        }
        .faq-item .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--secondary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question .faq-toggle {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-item .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 0;
            line-height: 1.7;
        }
        .faq-item .faq-answer .faq-tag {
            display: inline-block;
            margin-top: 8px;
            padding: 2px 10px;
            background: rgba(230, 57, 70, 0.06);
            border-radius: 40px;
            color: var(--secondary);
            font-size: 0.78rem;
            font-weight: 500;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 33, 55, 0.92), rgba(13, 33, 55, 0.75));
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-section .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .cta-section .cta-btn-primary {
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--secondary), #c92e3a);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .cta-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(230, 57, 70, 0.4);
            color: #fff;
        }
        .cta-section .cta-btn-outline {
            padding: 16px 40px;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.25);
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .cta-btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(244, 162, 97, 0.08);
            transform: translateY(-3px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand i {
            color: var(--secondary);
        }
        .site-footer p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 1rem;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            text-decoration: none;
            transition: color var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 1rem;
        }
        .site-footer .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            transition: all var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-social a:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-3px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            margin-top: 30px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Scroll Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: #fff;
            border: none;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.35);
            transition: all var(--transition);
            z-index: 999;
            opacity: 0;
            transform: translateY(20px);
            pointer-events: none;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .scroll-top.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .scroll-top:hover {
            background: var(--secondary-hover);
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.5);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            .intro-grid {
                gap: 36px;
            }
            .section-padding {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.9rem;
            }
        }

        @media (max-width: 991px) {
            .nav-card {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-drawer {
                display: block;
            }
            .site-header .nav-cta {
                display: none;
            }
            .intro-grid {
                grid-template-columns: 1fr;
            }
            .intro-image img {
                height: 280px;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stats .stat-number {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 80vh;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .hero-stats {
                flex-direction: row;
                gap: 16px;
                margin-top: 2rem;
                padding-top: 1.5rem;
            }
            .hero-stats .stat-item {
                flex: 1;
                min-width: 80px;
            }
            .section-padding {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 1rem;
            }
            .intro-features {
                grid-template-columns: 1fr;
            }
            .category-card {
                padding: 24px 18px 22px;
            }
            .process-step {
                padding: 20px 16px;
            }
            .process-step .step-number {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
            .cta-section h2 {
                font-size: 1.7rem;
            }
            .cta-section .cta-btn-primary,
            .cta-section .cta-btn-outline {
                padding: 14px 32px;
                font-size: 0.95rem;
            }
            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 0.98rem;
            }
            .faq-item .faq-answer {
                padding: 0 18px;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer .footer-links {
                justify-content: center;
            }
            .site-footer .footer-social {
                justify-content: center;
            }
            .site-footer .footer-brand {
                justify-content: center;
            }
            .site-footer p {
                text-align: center;
            }
            .news-card .news-img {
                height: 170px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero .hero-badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
            .hero-stats .stat-number {
                font-size: 1.3rem;
            }
            .hero-stats .stat-label {
                font-size: 0.75rem;
            }
            .section-padding {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
                margin-bottom: 1.5rem;
            }
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .site-logo {
                font-size: 1.15rem;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
            .category-card .cat-icon {
                width: 56px;
                height: 56px;
                font-size: 1.4rem;
            }
            .category-card h3 {
                font-size: 1.05rem;
            }
            .news-card .news-body {
                padding: 16px 16px 18px;
            }
            .news-card h4 {
                font-size: 1rem;
            }
            .advantage-card {
                padding: 20px 16px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .cta-btn-primary,
            .cta-section .cta-btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .scroll-top {
                width: 40px;
                height: 40px;
                font-size: 1rem;
                bottom: 20px;
                right: 20px;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--secondary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-soft-primary {
            background: rgba(13, 33, 55, 0.04);
        }
        .rounded-full {
            border-radius: 9999px;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .gap-4 {
            gap: 24px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .mb-3 {
            margin-bottom: 1.5rem;
        }
        .mb-4 {
            margin-bottom: 2rem;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mt-4 {
            margin-top: 2rem;
        }
        .text-center {
            text-align: center;
        }
        .text-muted {
            color: var(--text-light);
        }
        .fw-600 {
            font-weight: 600;
        }
        .fw-700 {
            font-weight: 700;
        }
        .fw-800 {
            font-weight: 800;
        }
        .d-none {
            display: none;
        }
        .d-flex {
            display: flex;
        }
        .align-items-center {
            align-items: center;
        }
        .justify-content-center {
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

/* roulang page: category1 */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #e31b23;
            --primary-dark: #b8151c;
            --primary-light: #ff4d55;
            --secondary: #0a1628;
            --secondary-light: #1a2a4a;
            --accent: #f5c518;
            --bg-light: #f8f9fc;
            --bg-dark: #0a1628;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border-color: #e8e8f0;
            --border-light: rgba(255, 255, 255, 0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 16px 48px rgba(227, 27, 35, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: var(--secondary);
            border-bottom: 1px solid var(--border-light);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 26px;
            transform: scaleX(1.1);
        }
        .site-logo span {
            background: linear-gradient(135deg, #fff 60%, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .site-logo:hover {
            color: var(--text-white);
            opacity: 0.92;
        }
        .nav-card {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.06);
            padding: 4px 6px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .nav-item {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .nav-item:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-item.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 16px rgba(227, 27, 35, 0.35);
        }
        .nav-item.active:hover {
            background: var(--primary-dark);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 30px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 700;
            font-size: 14px;
            text-decoration: none;
            transition: var(--transition);
            border: none;
            box-shadow: 0 4px 20px rgba(227, 27, 35, 0.35);
            flex-shrink: 0;
        }
        .nav-cta i {
            font-size: 16px;
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(227, 27, 35, 0.45);
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Mobile Nav Panel ===== */
        .mobile-nav-panel {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: var(--secondary);
            border-bottom: 1px solid var(--border-light);
            padding: 16px 24px 24px;
            z-index: 1040;
            flex-direction: column;
            gap: 8px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            max-height: calc(100vh - var(--header-height));
            overflow-y: auto;
        }
        .mobile-nav-panel.open {
            display: flex;
        }
        .mobile-nav-panel .nav-item {
            padding: 12px 20px;
            border-radius: 12px;
            font-size: 16px;
            width: 100%;
            text-align: left;
        }
        .mobile-nav-panel .nav-cta {
            justify-content: center;
            margin-top: 8px;
            width: 100%;
            padding: 14px 24px;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 72px;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.88) 40%, rgba(10, 22, 40, 0.65) 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
        }
        .page-banner h1 i {
            color: var(--primary);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            line-height: 1.7;
        }
        .page-banner .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .page-banner .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.8);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: var(--primary-light);
        }
        .page-banner .breadcrumb-custom span {
            color: var(--text-white);
        }
        .page-banner .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: var(--text-white);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        /* ===== Section Spacing ===== */
        section {
            padding: 80px 0;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.6;
            margin-bottom: 40px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 40px;
        }
        .section-header .section-title {
            margin-bottom: 4px;
        }
        .section-header .section-subtitle {
            margin-bottom: 0;
        }
        .section-link {
            font-weight: 600;
            font-size: 15px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .section-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* ===== Cards ===== */
        .card-modern {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .card-modern:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-modern .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .card-modern:hover .card-img-top {
            transform: scale(1.03);
        }
        .card-modern .card-body {
            padding: 24px;
        }
        .card-modern .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.35;
        }
        .card-modern .card-title a {
            color: var(--text-primary);
        }
        .card-modern .card-title a:hover {
            color: var(--primary);
        }
        .card-modern .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card-modern .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            margin-top: auto;
        }
        .card-modern .card-meta i {
            margin-right: 4px;
        }
        .card-modern .card-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            background: var(--bg-light);
            color: var(--primary);
            margin-bottom: 12px;
        }
        .card-modern .card-tag.live {
            background: rgba(227, 27, 35, 0.1);
            color: var(--primary);
        }
        .card-modern .card-tag.hot {
            background: rgba(245, 197, 24, 0.15);
            color: #b8960e;
        }
        .card-modern .card-tag.new {
            background: rgba(0, 200, 150, 0.12);
            color: #008a6a;
        }

        /* ===== Guide Step Cards ===== */
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }
        .step-card .step-number {
            font-size: 48px;
            font-weight: 900;
            color: var(--primary);
            opacity: 0.15;
            position: absolute;
            top: 16px;
            right: 20px;
            line-height: 1;
            font-family: 'Inter', sans-serif;
        }
        .step-card .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--text-white);
            margin-bottom: 20px;
        }
        .step-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        /* ===== Feature List ===== */
        .feature-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .feature-item:last-child {
            border-bottom: none;
        }
        .feature-item .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(227, 27, 35, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .feature-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
        }
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--text-primary);
            transition: var(--transition);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--bg-dark);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 34px;
            color: var(--text-white);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-block p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-block .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: 40px;
            background: var(--primary);
            color: var(--text-white);
            font-weight: 700;
            font-size: 16px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 32px rgba(227, 27, 35, 0.35);
        }
        .cta-block .btn-cta:hover {
            background: var(--primary-dark);
            color: var(--text-white);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(227, 27, 35, 0.45);
        }
        .cta-block .btn-cta i {
            font-size: 18px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 32px;
            border-top: 1px solid var(--border-light);
        }
        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-brand i {
            color: var(--primary);
        }
        .site-footer p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 360px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }
        .site-footer .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 16px;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 0;
            margin: 0;
            list-style: none;
        }
        .site-footer .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .site-footer .footer-links li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 20px rgba(227, 27, 35, 0.35);
            cursor: pointer;
            border: none;
            transition: var(--transition);
            z-index: 1020;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .back-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(227, 27, 35, 0.45);
        }
        .back-top:focus-visible {
            outline: 2px solid var(--text-white);
            outline-offset: 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .nav-card {
                gap: 2px;
                padding: 3px 4px;
            }
            .nav-item {
                padding: 6px 14px;
                font-size: 13px;
            }
            .nav-cta {
                padding: 8px 18px;
                font-size: 13px;
            }
            .nav-cta i {
                font-size: 14px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .page-banner p {
                font-size: 16px;
            }
            .section-title {
                font-size: 28px;
            }
            .cta-block h2 {
                font-size: 28px;
            }
            .cta-block {
                padding: 48px 32px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            :root {
                --header-height: 64px;
            }
            .nav-card,
            .nav-cta {
                display: none !important;
            }
            .nav-toggle {
                display: block;
            }
            .site-logo {
                font-size: 18px;
            }
            .site-logo i {
                font-size: 22px;
            }
            .page-banner {
                padding: 56px 0 48px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .page-banner h1 i {
                font-size: 22px;
                margin-right: 8px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .page-banner .banner-badge {
                font-size: 12px;
                padding: 4px 12px;
            }
            section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
                margin-bottom: 28px;
            }
            .section-header {
                margin-bottom: 28px;
            }
            .card-modern .card-img-top {
                height: 170px;
            }
            .card-modern .card-body {
                padding: 18px;
            }
            .step-card {
                padding: 24px 20px;
            }
            .step-card .step-number {
                font-size: 36px;
            }
            .cta-block {
                padding: 40px 24px;
                border-radius: var(--radius-md);
            }
            .cta-block h2 {
                font-size: 24px;
            }
            .cta-block p {
                font-size: 15px;
            }
            .cta-block .btn-cta {
                padding: 14px 28px;
                font-size: 15px;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 42px;
                height: 42px;
                font-size: 17px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 22px;
            }
            .page-banner p {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .card-modern .card-img-top {
                height: 140px;
            }
            .card-modern .card-title {
                font-size: 16px;
            }
            .step-card {
                padding: 20px 16px;
            }
            .step-card .step-icon {
                width: 44px;
                height: 44px;
                font-size: 20px;
            }
            .step-card h3 {
                font-size: 17px;
            }
            .feature-item {
                flex-direction: column;
                gap: 10px;
                padding: 16px 0;
            }
            .cta-block {
                padding: 32px 18px;
            }
            .cta-block h2 {
                font-size: 20px;
            }
            .cta-block .btn-cta {
                padding: 12px 22px;
                font-size: 14px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-answer {
                font-size: 14px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

        /* ===== Utility ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-soft-primary {
            background: rgba(227, 27, 35, 0.04);
        }
        .gap-grid {
            gap: 24px;
        }
        .mb-section {
            margin-bottom: 80px;
        }
        @media (max-width: 768px) {
            .mb-section {
                margin-bottom: 56px;
            }
        }

        /* ===== Animation ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
        }

/* roulang page: article */
:root {
            --primary: #0d1b2a;
            --primary-light: #1e3a5f;
            --accent: #e8a838;
            --accent-hover: #d4952f;
            --bg: #f5f7fa;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-weak: #6b7280;
            --border: #e5e7eb;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font: system-ui, -apple-system, 'Segoe UI', Roboto, 'Noto Sans', sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }
        img { max-width: 100%; height: auto; display: block; }
        .container { max-width: 1200px; padding: 0 20px; margin: 0 auto; }
        .container-fluid { padding: 0 20px; }
        .site-header {
            background: var(--primary);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            gap: 16px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            white-space: nowrap;
            transition: var(--transition);
        }
        .site-logo i { color: var(--accent); font-size: 1.5rem; }
        .site-logo:hover { color: var(--accent); }
        .nav-card {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255,255,255,0.06);
            padding: 4px 6px;
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
            flex-wrap: wrap;
        }
        .nav-item {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item:hover { background: rgba(255,255,255,0.12); color: #fff; }
        .nav-item.active { background: var(--accent); color: var(--primary); font-weight: 600; }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta i { font-size: 1.1rem; }
        .nav-cta:hover { background: var(--accent-hover); color: var(--primary); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(232,168,56,0.35); }
        .nav-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.6rem; cursor: pointer; padding: 4px 8px; border-radius: var(--radius-sm); transition: var(--transition); }
        .nav-toggle:hover { background: rgba(255,255,255,0.1); }
        .mobile-nav { display: none; background: var(--primary); padding: 12px 20px 20px; border-top: 1px solid rgba(255,255,255,0.08); }
        .mobile-nav.show { display: block; }
        .mobile-nav .nav-item { display: block; padding: 12px 16px; border-radius: var(--radius-sm); }
        .mobile-nav .nav-cta { display: flex; margin-top: 12px; justify-content: center; }
        .article-banner {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: flex-end;
            padding: 60px 0 50px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13,27,42,0.2) 0%, rgba(13,27,42,0.85) 100%);
            z-index: 1;
        }
        .article-banner .container { position: relative; z-index: 2; }
        .article-banner .cat-tag {
            display: inline-block;
            padding: 5px 16px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: 14px;
        }
        .article-banner h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            max-width: 800px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
        }
        .article-banner .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px 30px;
            margin-top: 16px;
            font-size: 0.95rem;
            opacity: 0.85;
        }
        .article-banner .meta i { margin-right: 6px; color: var(--accent); }
        .article-main { padding: 50px 0 60px; }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
            line-height: 1.9;
            font-size: 1.05rem;
        }
        .article-body p { margin-bottom: 1.2rem; }
        .article-body h2, .article-body h3 { margin-top: 1.8rem; margin-bottom: 0.8rem; font-weight: 700; color: var(--primary); }
        .article-body img { border-radius: var(--radius-sm); margin: 1.5rem 0; }
        .article-body ul, .article-body ol { padding-left: 1.5rem; margin-bottom: 1.2rem; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 20px;
            background: #f9f6ef;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: var(--text-weak);
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }
        .article-tags .tag {
            padding: 6px 16px;
            background: var(--bg);
            border-radius: 30px;
            font-size: 0.85rem;
            color: var(--text-weak);
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .article-tags .tag:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); }
        .share-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
        }
        .share-bar span { font-weight: 600; font-size: 0.95rem; color: var(--text-weak); }
        .share-bar a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text-weak);
            border: 1px solid var(--border);
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .share-bar a:hover { background: var(--accent); color: var(--primary); border-color: var(--accent); transform: translateY(-2px); }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px 26px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
        }
        .sidebar-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card .card-title i { color: var(--accent); }
        .sidebar-list { list-style: none; padding: 0; margin: 0; }
        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list li .num {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--text-weak);
        }
        .sidebar-list li .num.top { background: var(--accent); color: var(--primary); }
        .sidebar-list li a { color: var(--text); font-weight: 500; font-size: 0.95rem; line-height: 1.4; }
        .sidebar-list li a:hover { color: var(--accent); }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: var(--radius);
            padding: 28px 26px;
            text-align: center;
        }
        .sidebar-cta h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.8; margin-bottom: 18px; }
        .sidebar-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 700;
            transition: var(--transition);
        }
        .sidebar-cta .btn-cta:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,168,56,0.3); }
        .related-section { background: var(--bg-card); padding: 50px 0; border-top: 1px solid var(--border); }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 36px;
        }
        .related-section .section-title span { border-bottom: 3px solid var(--accent); padding-bottom: 8px; }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            height: 100%;
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card img { width: 100%; height: 200px; object-fit: cover; }
        .related-card .card-body { padding: 18px 20px; }
        .related-card .card-body h5 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
        .related-card .card-body h5 a { color: var(--text); }
        .related-card .card-body h5 a:hover { color: var(--accent); }
        .related-card .card-body .text-weak { font-size: 0.85rem; color: var(--text-weak); }
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            text-align: center;
        }
        .cta-section h2 { font-size: 2rem; font-weight: 700; margin-bottom: 14px; }
        .cta-section p { font-size: 1.1rem; opacity: 0.85; max-width: 600px; margin: 0 auto 28px; }
        .cta-section .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 44px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .cta-section .btn-cta-lg:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 30px rgba(232,168,56,0.35); }
        .faq-section { padding: 50px 0; }
        .faq-section .section-title { font-size: 1.6rem; font-weight: 700; text-align: center; margin-bottom: 36px; }
        .faq-section .section-title span { border-bottom: 3px solid var(--accent); padding-bottom: 8px; }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            margin-bottom: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--accent); }
        .faq-item h5 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; }
        .faq-item h5 i { color: var(--accent); font-size: 1.1rem; }
        .faq-item p { margin: 0; font-size: 0.95rem; color: var(--text-weak); padding-left: 26px; }
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.8);
            padding: 50px 0 0;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand i { color: var(--accent); }
        .site-footer p { font-size: 0.95rem; line-height: 1.7; opacity: 0.75; max-width: 360px; }
        .site-footer .footer-social { display: flex; gap: 14px; margin-top: 16px; }
        .site-footer .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.7);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover { background: var(--accent); color: var(--primary); }
        .site-footer .footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px 20px; }
        .site-footer .footer-links li a { color: rgba(255,255,255,0.7); font-size: 0.95rem; transition: var(--transition); }
        .site-footer .footer-links li a:hover { color: var(--accent); }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 20px 0;
            margin-top: 36px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            opacity: 0.6;
        }
        .site-footer .footer-bottom a { color: rgba(255,255,255,0.7); }
        .site-footer .footer-bottom a:hover { color: var(--accent); }
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i { font-size: 3rem; color: var(--accent); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-weak); font-size: 1.05rem; margin-bottom: 24px; }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--accent-hover); transform: translateY(-2px); }
        @media (max-width: 991px) {
            .nav-card, .nav-cta { display: none; }
            .nav-toggle { display: block; }
            .article-banner h1 { font-size: 1.9rem; }
            .article-body { padding: 28px 24px; }
            .sidebar-card { padding: 20px; }
        }
        @media (max-width: 767px) {
            .site-header .container { height: 60px; }
            .site-logo { font-size: 1.1rem; }
            .site-logo i { font-size: 1.2rem; }
            .article-banner { min-height: 280px; padding: 40px 0 30px; }
            .article-banner h1 { font-size: 1.5rem; }
            .article-banner .meta { font-size: 0.85rem; gap: 12px 20px; }
            .article-main { padding: 30px 0 40px; }
            .article-body { padding: 20px 16px; font-size: 1rem; }
            .related-card img { height: 160px; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-cta-lg { padding: 14px 28px; font-size: 1rem; }
            .faq-item { padding: 16px 18px; }
            .site-footer .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-banner h1 { font-size: 1.25rem; }
            .article-banner { min-height: 220px; padding: 30px 0 24px; }
            .article-body { padding: 16px 12px; }
            .share-bar { flex-wrap: wrap; }
            .sidebar-card { padding: 16px; }
            .related-card img { height: 140px; }
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7a;
            --accent: #f4a261;
            --accent-light: #ffb703;
            --bg-dark: #0d1b2a;
            --bg-card: #1b2838;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2d3436;
            --text-light: #636e72;
            --text-white: #f1faee;
            --text-muted: #a0aec0;
            --border-color: #e2e8f0;
            --border-dark: #2d3748;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --shadow-glow: 0 0 40px rgba(230, 57, 70, 0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background: var(--bg-light);
            line-height: 1.7;
            font-size: 16px;
            padding-top: var(--header-h);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-h);
            background: rgba(13, 27, 42, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-white);
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            white-space: nowrap;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 1.6rem;
            filter: drop-shadow(0 0 12px rgba(230, 57, 70, 0.5));
        }
        .site-logo span {
            background: linear-gradient(135deg, #f1faee 0%, #e63946 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav-card {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.06);
            padding: 4px 6px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
        }
        .nav-item {
            padding: 8px 20px;
            border-radius: 30px;
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-item.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.35);
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 30px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.45);
            color: var(--text-white);
        }
        .nav-cta i {
            font-size: 1rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== 移动端导航 ===== */
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1060;
            opacity: 0;
            transition: opacity 0.3s;
        }
        .mobile-overlay.show {
            opacity: 1;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -300px;
            width: 280px;
            height: 100%;
            background: var(--bg-dark);
            z-index: 1070;
            padding: 24px 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            border-left: 1px solid var(--border-dark);
            box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-drawer.open {
            right: 0;
        }
        .mobile-drawer .drawer-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-dark);
            margin-bottom: 16px;
        }
        .mobile-drawer .drawer-header .site-logo {
            font-size: 1.1rem;
        }
        .mobile-drawer .drawer-close {
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px 8px;
        }
        .mobile-drawer .drawer-close:hover {
            color: var(--text-white);
        }
        .mobile-drawer .nav-item {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 1rem;
            font-weight: 500;
        }
        .mobile-drawer .nav-item.active {
            background: var(--primary);
            color: var(--text-white);
        }
        .mobile-drawer .nav-item:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-white);
        }
        .mobile-drawer .nav-cta {
            margin-top: 12px;
            justify-content: center;
        }

        /* ===== Banner / Hero 内页 ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #162a3a 100%);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(230, 57, 70, 0.15), transparent 70%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
        }
        .page-banner h1 i {
            color: var(--primary);
            margin-right: 8px;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 700px;
            margin: 0 auto 20px;
        }
        .page-banner .breadcrumb-custom {
            display: flex;
            justify-content: center;
            gap: 10px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .page-banner .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: var(--primary-light);
        }
        .page-banner .breadcrumb-custom span {
            color: var(--text-white);
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-block .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 40px;
        }
        .section-block.bg-dark {
            background: var(--bg-dark);
        }
        .section-block.bg-dark .section-title {
            color: var(--text-white);
        }
        .section-block.bg-dark .section-sub {
            color: var(--text-muted);
        }
        .section-block.bg-white {
            background: var(--bg-white);
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-custom .card-body {
            padding: 24px;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .card-custom .card-text {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .card-custom .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
        }
        .card-custom .card-meta i {
            margin-right: 4px;
        }
        .card-custom .badge-tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(230, 57, 70, 0.1);
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-custom.bg-dark-card {
            background: var(--bg-card);
            border-color: var(--border-dark);
        }
        .card-custom.bg-dark-card .card-title {
            color: var(--text-white);
        }
        .card-custom.bg-dark-card .card-text {
            color: var(--text-muted);
        }
        .card-custom.bg-dark-card .card-meta {
            border-color: var(--border-dark);
            color: var(--text-muted);
        }

        /* ===== 按钮 ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-custom-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--text-white);
            box-shadow: 0 4px 20px rgba(230, 57, 70, 0.3);
        }
        .btn-custom-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(230, 57, 70, 0.45);
            color: var(--text-white);
        }
        .btn-custom-outline {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }
        .btn-custom-outline:hover {
            border-color: var(--primary);
            background: rgba(230, 57, 70, 0.1);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-custom-light {
            background: var(--bg-white);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .btn-custom-light:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 标签 / 徽章 ===== */
        .badge-custom {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .badge-hot {
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary);
        }
        .badge-new {
            background: rgba(244, 162, 97, 0.15);
            color: var(--accent);
        }
        .badge-live {
            background: rgba(46, 204, 113, 0.15);
            color: #27ae60;
        }

        /* ===== 统计数字块 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }
        .stat-item .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .stat-number i {
            color: var(--primary);
            margin-right: 6px;
            font-size: 1.6rem;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* ===== 社区特色板块 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
            box-shadow: var(--shadow-sm);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .feature-card .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.5rem;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.2);
        }
        .feature-card .feature-icon.alt {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            box-shadow: 0 8px 24px rgba(29, 53, 87, 0.2);
        }
        .feature-card .feature-icon.alt2 {
            background: linear-gradient(135deg, var(--accent), #e07a2f);
            box-shadow: 0 8px 24px rgba(244, 162, 97, 0.2);
        }
        .feature-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0;
        }
        .feature-card.bg-dark-card {
            background: var(--bg-card);
            border-color: var(--border-dark);
        }
        .feature-card.bg-dark-card h4 {
            color: var(--text-white);
        }
        .feature-card.bg-dark-card p {
            color: var(--text-muted);
        }

        /* ===== 话题 / 讨论列表 ===== */
        .topic-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .topic-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .topic-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .topic-item .topic-rank {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-muted);
            min-width: 36px;
            text-align: center;
        }
        .topic-item .topic-rank.top {
            color: var(--primary);
        }
        .topic-item .topic-content {
            flex: 1;
        }
        .topic-item .topic-content h5 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 4px;
        }
        .topic-item .topic-content p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 0;
        }
        .topic-item .topic-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .topic-item .topic-meta i {
            margin-right: 4px;
        }
        .topic-item.bg-dark-card {
            background: var(--bg-card);
            border-color: var(--border-dark);
        }
        .topic-item.bg-dark-card .topic-content h5 {
            color: var(--text-white);
        }
        .topic-item.bg-dark-card .topic-content p {
            color: var(--text-muted);
        }
        .topic-item.bg-dark-card .topic-rank {
            color: var(--text-muted);
        }

        /* ===== 头像组 ===== */
        .avatar-group {
            display: flex;
            align-items: center;
        }
        .avatar-group .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 2px solid var(--bg-white);
            margin-left: -8px;
            object-fit: cover;
            background: var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-white);
        }
        .avatar-group .avatar:first-child {
            margin-left: 0;
        }
        .avatar-group .avatar.more {
            background: var(--primary);
            font-size: 0.7rem;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: transparent;
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            gap: 16px;
            transition: var(--transition);
            font-size: 1rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-item .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 1.1rem;
        }
        .faq-item .faq-question:hover {
            color: var(--primary);
        }
        .faq-item .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item .faq-answer.show {
            display: block;
        }
        .faq-item.bg-dark-card {
            background: var(--bg-card);
            border-color: var(--border-dark);
        }
        .faq-item.bg-dark-card .faq-question {
            color: var(--text-white);
        }
        .faq-item.bg-dark-card .faq-answer {
            color: var(--text-muted);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #162a3a 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .cta-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-muted);
            padding: 60px 0 30px;
            border-top: 1px solid var(--border-dark);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand i {
            color: var(--primary);
        }
        .site-footer p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-muted);
            max-width: 360px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .site-footer .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-3px);
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
        }
        .site-footer .footer-links li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links li a:hover {
            color: var(--primary-light);
        }
        .site-footer .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .section-block .section-title {
                font-size: 1.7rem;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 768px) {
            .nav-card {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-overlay.show {
                pointer-events: auto;
            }
            .page-banner {
                padding: 60px 0 50px;
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .section-block {
                padding: 50px 0;
            }
            .section-block .section-title {
                font-size: 1.5rem;
            }
            .section-block .section-sub {
                font-size: 0.95rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .topic-item {
                flex-wrap: wrap;
                gap: 12px;
            }
            .topic-item .topic-meta {
                width: 100%;
                justify-content: flex-start;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .page-banner h1 {
                font-size: 1.4rem;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
            .section-block .section-title {
                font-size: 1.3rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.4rem;
            }
            .card-custom .card-body {
                padding: 18px;
            }
            .topic-item {
                padding: 14px 16px;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section .cta-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-custom {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 动画辅助 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e23636;
            --primary-dark: #b82a2a;
            --primary-light: #f85959;
            --secondary: #1a1a2e;
            --secondary-light: #2a2a4a;
            --accent: #f5c518;
            --bg-body: #f8f9fa;
            --bg-card: #ffffff;
            --bg-dark: #0d0d1a;
            --bg-section-alt: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border-color: #e0e0e8;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --border-radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.14);
            --shadow-hover: 0 16px 48px rgba(226, 54, 54, 0.18);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: var(--header-height);
        }

        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            flex-wrap: nowrap;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-primary);
            text-decoration: none;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }
        .site-logo i {
            color: var(--primary);
            font-size: 1.7rem;
        }
        .site-logo:hover {
            color: var(--primary);
        }
        .site-logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* 卡片化导航面板 */
        .nav-card {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg-section-alt);
            padding: 4px 8px;
            border-radius: 50px;
            box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04);
            flex-shrink: 0;
        }

        .nav-item {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
            letter-spacing: 0.2px;
            border: none;
            background: transparent;
        }
        .nav-item:hover {
            color: var(--primary);
            background: rgba(226, 54, 54, 0.08);
            transform: translateY(-1px);
        }
        .nav-item.active {
            color: var(--text-white);
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(226, 54, 54, 0.35);
        }
        .nav-item.active:hover {
            color: var(--text-white);
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 26px;
            border-radius: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.92rem;
            text-decoration: none;
            box-shadow: 0 4px 18px rgba(226, 54, 54, 0.30);
            transition: var(--transition);
            flex-shrink: 0;
            letter-spacing: 0.3px;
        }
        .nav-cta i {
            font-size: 1.1rem;
        }
        .nav-cta:hover {
            transform: translateY(-2px) scale(1.02);
            box-shadow: 0 8px 28px rgba(226, 54, 54, 0.40);
            color: var(--text-white);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 30px 24px;
            flex-direction: column;
            gap: 16px;
            z-index: 1040;
            overflow-y: auto;
            opacity: 0;
            transform: translateY(-12px);
            transition: opacity 0.3s ease, transform 0.3s ease;
            pointer-events: none;
        }
        .mobile-menu.open {
            display: flex;
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
        .mobile-menu .nav-item {
            font-size: 1.1rem;
            padding: 14px 20px;
            border-radius: 12px;
            width: 100%;
            text-align: center;
        }
        .mobile-menu .nav-cta {
            width: 100%;
            justify-content: center;
            margin-top: 8px;
            padding: 14px 20px;
            font-size: 1.05rem;
        }

        /* ===== Hero / 分类横幅 ===== */
        .category-hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--secondary) 50%, var(--secondary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
            animation: heroPan 28s ease-in-out infinite alternate;
        }
        @keyframes heroPan {
            0% {
                transform: scale(1) translate(0, 0);
            }
            100% {
                transform: scale(1.08) translate(-12px, 8px);
            }
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .category-hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.2;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
        }
        .category-hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .category-hero .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 700px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .category-hero .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }
        .category-hero .hero-badges .badge-custom {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
            color: var(--text-white);
            padding: 8px 22px;
            border-radius: 40px;
            font-size: 0.92rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: var(--transition);
        }
        .category-hero .hero-badges .badge-custom:hover {
            background: var(--primary);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .category-hero .hero-badges .badge-custom i {
            margin-right: 6px;
            color: var(--accent);
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            color: var(--text-primary);
        }
        .section-alt .section-title,
        .section-dark .section-title {
            color: var(--text-white);
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-bottom: 40px;
        }
        .section-alt .section-sub,
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.75);
        }
        .section-title i {
            color: var(--primary);
            margin-right: 10px;
        }

        .text-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片 ===== */
        .card-modern {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: none;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-modern:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .card-modern .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card-modern .card-body {
            padding: 24px 22px 28px;
        }
        .card-modern .card-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card-modern .card-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card-modern .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 14px;
        }
        .card-modern .card-tags .tag {
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 600;
            transition: var(--transition);
        }
        .card-modern .card-tags .tag:hover {
            background: var(--primary);
            color: var(--text-white);
        }
        .card-modern .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-top: 6px;
        }
        .card-modern .card-meta i {
            margin-right: 4px;
        }

        /* ===== 分析类型卡片（大图） ===== */
        .analysis-type-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            height: 320px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            cursor: pointer;
        }
        .analysis-type-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }
        .analysis-type-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .analysis-type-card:hover img {
            transform: scale(1.08);
        }
        .analysis-type-card .overlay {
            position: relative;
            z-index: 2;
            padding: 30px 26px;
            background: linear-gradient(0deg, rgba(0, 0, 0, 0.85) 0%, transparent 100%);
            width: 100%;
        }
        .analysis-type-card .overlay h3 {
            color: var(--text-white);
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .analysis-type-card .overlay p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.92rem;
            margin-bottom: 0;
        }
        .analysis-type-card .overlay .type-badge {
            display: inline-block;
            background: var(--primary);
            color: var(--text-white);
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.78rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        /* ===== 深度分析流程 ===== */
        .flow-step {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            padding: 24px 20px;
            background: var(--bg-card);
            border-radius: var(--border-radius-sm);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            margin-bottom: 16px;
        }
        .flow-step:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
        }
        .flow-step .step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 4px 14px rgba(226, 54, 54, 0.25);
        }
        .flow-step .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .flow-step .step-content p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            margin-bottom: 0;
        }

        /* ===== 专家团队 ===== */
        .expert-card {
            text-align: center;
            padding: 32px 20px 28px;
            background: var(--bg-card);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .expert-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .expert-card .avatar {
            width: 90px;
            height: 90px;
            border-radius: 50%;
            object-fit: cover;
            margin: 0 auto 16px;
            border: 4px solid var(--bg-section-alt);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }
        .expert-card h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .expert-card .expert-title {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.88rem;
            margin-bottom: 10px;
        }
        .expert-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 14px;
        }
        .expert-card .expert-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            justify-content: center;
        }
        .expert-card .expert-tags span {
            background: var(--bg-section-alt);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--border-radius-sm);
            box-shadow: var(--shadow-sm);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
            cursor: pointer;
            border-left: 4px solid var(--primary);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
        }
        .faq-item .faq-q i {
            color: var(--primary);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            margin-top: 12px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary), var(--bg-dark));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 44px;
            border-radius: 50px;
            background: var(--accent);
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 1.1rem;
            text-decoration: none;
            box-shadow: 0 8px 30px rgba(245, 197, 24, 0.35);
            transition: var(--transition);
            border: none;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px) scale(1.03);
            box-shadow: 0 12px 40px rgba(245, 197, 24, 0.50);
            color: var(--bg-dark);
        }

        /* ===== 统计数字 ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--border-radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.10);
            transform: translateY(-4px);
        }
        .stat-item .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            margin-top: 6px;
        }

        /* ===== 内容列表 ===== */
        .content-list-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .content-list-item:last-child {
            border-bottom: none;
        }
        .content-list-item:hover {
            padding-left: 12px;
        }
        .content-list-item .list-img {
            width: 140px;
            height: 100px;
            border-radius: var(--border-radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }
        .content-list-item .list-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .content-list-item .list-info h4 a {
            color: var(--text-primary);
        }
        .content-list-item .list-info h4 a:hover {
            color: var(--primary);
        }
        .content-list-item .list-info p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 6px;
        }
        .content-list-item .list-info .list-meta {
            color: var(--text-light);
            font-size: 0.82rem;
            display: flex;
            gap: 16px;
        }
        .content-list-item .list-info .list-meta i {
            margin-right: 4px;
        }

        .list-tag {
            display: inline-block;
            background: var(--bg-section-alt);
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-right: 6px;
        }
        .list-tag.hot {
            background: rgba(226, 54, 54, 0.12);
            color: var(--primary);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }
        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-brand i {
            color: var(--primary);
        }
        .site-footer p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 400px;
            line-height: 1.7;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 14px;
            margin-top: 18px;
        }
        .site-footer .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-3px);
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .category-hero h1 {
                font-size: 2.6rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .content-list-item .list-img {
                width: 110px;
                height: 80px;
            }
        }

        @media (max-width: 820px) {
            .nav-card {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .site-header .container {
                gap: 12px;
            }
            .category-hero {
                padding: 120px 0 60px;
                min-height: 340px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .category-hero .hero-sub {
                font-size: 1rem;
            }
            .section-block {
                padding: 60px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .analysis-type-card {
                height: 240px;
            }
            .flow-step {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 576px) {
            :root {
                --header-height: 64px;
            }
            .site-logo {
                font-size: 1.15rem;
            }
            .site-logo i {
                font-size: 1.3rem;
            }
            .category-hero {
                padding: 100px 0 48px;
                min-height: 280px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-sub {
                font-size: 0.92rem;
            }
            .category-hero .hero-badges .badge-custom {
                font-size: 0.78rem;
                padding: 6px 16px;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-sub {
                font-size: 0.95rem;
            }
            .card-modern .card-img-top {
                height: 160px;
            }
            .card-modern .card-body {
                padding: 18px 16px 22px;
            }
            .analysis-type-card {
                height: 200px;
            }
            .analysis-type-card .overlay {
                padding: 20px 18px;
            }
            .analysis-type-card .overlay h3 {
                font-size: 1.2rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item .stat-num {
                font-size: 2rem;
            }
            .content-list-item {
                flex-direction: column;
                gap: 12px;
            }
            .content-list-item .list-img {
                width: 100%;
                height: 160px;
            }
            .expert-card .avatar {
                width: 70px;
                height: 70px;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .btn-cta {
                padding: 14px 32px;
                font-size: 1rem;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .nav-toggle {
                font-size: 1.4rem;
            }
            .mobile-menu {
                padding: 20px 16px;
            }
            .mobile-menu .nav-item {
                font-size: 1rem;
                padding: 12px 16px;
            }
        }

        @media (max-width: 400px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 18px 10px;
            }
            .stat-item .stat-num {
                font-size: 1.6rem;
            }
        }

        /* ===== 小工具 ===== */
        .mb-0 {
            margin-bottom: 0 !important;
        }
        .gap-2 {
            gap: 8px !important;
        }
        .gap-3 {
            gap: 16px !important;
        }
        .rounded-pill {
            border-radius: 50px !important;
        }
        .fw-700 {
            font-weight: 700 !important;
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .text-primary-custom {
            color: var(--primary) !important;
        }

        /* 按钮通用 */
        .btn-outline-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 40px;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-weight: 700;
            background: transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-outline-primary-custom:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }

        /* 面包屑 */
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 12px 0;
            font-size: 0.88rem;
            color: var(--text-light);
        }
        .breadcrumb-custom a {
            color: var(--text-light);
            text-decoration: none;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom span {
            color: var(--text-secondary);
        }
        .breadcrumb-custom .sep {
            color: var(--text-light);
        }