/* roulang page: index */
:root {
            --color-primary: #3B6DF0;
            --color-primary-dark: #2952C4;
            --color-primary-light: #E8EEFD;
            --color-accent: #F59E0B;
            --color-accent-light: #FFF7E6;
            --color-success: #10B981;
            --color-success-light: #ECFDF5;
            --color-bg: #F8FAFC;
            --color-surface: #FFFFFF;
            --color-text: #1E293B;
            --color-text-secondary: #64748B;
            --color-text-tertiary: #94A3B8;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 10px 30px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
            --shadow-xl: 0 20px 50px rgba(0,0,0,0.10), 0 8px 20px rgba(0,0,0,0.05);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.40s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        button, .button {
            cursor: pointer;
            font-family: var(--font-sans);
            transition: all var(--transition-normal);
            border: none;
            outline: none;
        }
        button:focus-visible, .button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
        }

        input {
            font-family: var(--font-sans);
        }
        input:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--color-text);
            line-height: 1.35;
            margin-top: 0;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-xs);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            width: 100%;
            justify-content: space-between;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.02em;
        }
        .nav-logo:hover {
            color: var(--color-primary);
        }
        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            color: var(--color-text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .nav-links li a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 600;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-search input {
            width: 200px;
            padding: 9px 38px 9px 16px;
            border: 1.5px solid var(--color-border);
            border-radius: 24px;
            font-size: 0.9rem;
            background: var(--color-bg);
            color: var(--color-text);
            transition: all var(--transition-fast);
        }
        .nav-search input:focus {
            border-color: var(--color-primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(59,109,240,0.08);
            width: 240px;
        }
        .nav-search .search-icon {
            position: absolute;
            right: 14px;
            color: var(--color-text-tertiary);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .btn-nav-cta {
            padding: 10px 20px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            text-decoration: none;
            white-space: nowrap;
            transition: all var(--transition-normal);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .btn-nav-cta:hover {
            background: var(--color-primary-dark);
            color: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }
        .mobile-toggle:hover {
            background: var(--color-bg);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links li a {
                padding: 10px 10px;
                font-size: 0.88rem;
            }
            .nav-search input {
                width: 150px;
            }
            .nav-search input:focus {
                width: 180px;
            }
        }
        @media (max-width: 768px) {
            .nav-links, .nav-actions {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .site-header .container {
                justify-content: space-between;
            }
            .nav-links.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-surface);
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                padding: 12px 20px;
                gap: 4px;
                z-index: 999;
            }
            .nav-links.mobile-open li a {
                padding: 12px 16px;
                font-size: 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-actions.mobile-open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: calc(var(--nav-height) + 200px);
                left: 0;
                right: 0;
                background: var(--color-surface);
                padding: 8px 20px 20px;
                gap: 10px;
                z-index: 999;
                border-bottom: 1px solid var(--color-border);
            }
            .nav-actions.mobile-open .nav-search input {
                width: 100%;
            }
            .nav-actions.mobile-open .btn-nav-cta {
                width: 100%;
                justify-content: center;
                text-align: center;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            min-height: 580px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #1a3a6b 0%, #1e4d8c 30%, #1a406e 60%, #0f2d52 100%);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            overflow: hidden;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,30,55,0.82) 0%, rgba(20,40,70,0.78) 40%, rgba(18,35,60,0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0;
            color: #fff;
            max-width: 700px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255,255,255,0.14);
            border: 1px solid rgba(255,255,255,0.22);
            border-radius: 24px;
            padding: 7px 18px;
            font-size: 0.88rem;
            color: #e8f0ff;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }
        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            background: #5BECB0;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.03em;
            line-height: 1.3;
        }
        .hero-content .hero-subtitle {
            font-size: 1.15rem;
            color: #c8d6f0;
            margin-bottom: 32px;
            line-height: 1.7;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-hero-primary {
            padding: 14px 32px;
            background: #fff;
            color: var(--color-primary-dark);
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-md);
        }
        .btn-hero-primary:hover {
            background: #f0f4ff;
            color: var(--color-primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }
        .btn-hero-outline {
            padding: 14px 32px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.5);
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-normal);
        }
        .btn-hero-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            color: #fff;
            box-shadow: var(--shadow-md);
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 480px;
            }
            .hero-content {
                padding: 60px 0;
            }
            .hero-content h1 {
                font-size: 1.9rem;
            }
            .hero-content .hero-subtitle {
                font-size: 1rem;
            }
            .btn-hero-primary, .btn-hero-outline {
                padding: 12px 24px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 70px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-primary);
            background: var(--color-primary-light);
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }
        .section-header .section-desc {
            font-size: 1.05rem;
            color: var(--color-text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ========== CATEGORY CARDS ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .category-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: var(--color-text);
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-primary-light);
        }
        .category-card .card-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
            background: var(--color-bg);
        }
        .category-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .category-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .category-card .card-body {
            padding: 24px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .card-icon.blue {
            background: #E8EEFD;
            color: #3B6DF0;
        }
        .card-icon.amber {
            background: #FFF7E6;
            color: #F59E0B;
        }
        .card-icon.green {
            background: #ECFDF5;
            color: #10B981;
        }
        .category-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .category-card .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            margin-top: 14px;
            transition: gap var(--transition-fast);
        }
        .category-card:hover .card-link {
            gap: 10px;
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .category-card .card-img-wrap {
                height: 180px;
            }
        }

        /* ========== FEATURES ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .feature-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .feature-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .feature-item p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.55;
        }
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .news-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: var(--color-text);
        }
        .news-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-light);
            transform: translateY(-2px);
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            font-size: 0.82rem;
            color: var(--color-text-tertiary);
        }
        .news-card .news-tag {
            display: inline-block;
            background: var(--color-primary-light);
            color: var(--color-primary);
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.78rem;
            font-weight: 600;
        }
        .news-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .news-card .news-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .news-empty {
            text-align: center;
            padding: 40px;
            color: var(--color-text-tertiary);
            font-size: 1rem;
            grid-column: 1 / -1;
        }
        @media (max-width: 768px) {
            .news-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STATS ========== */
        .stats-section {
            background: var(--color-primary);
            color: #fff;
            padding: 56px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            margin-bottom: 4px;
            letter-spacing: -0.02em;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            opacity: 0.85;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
        }

        /* ========== PROCESS ========== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin: 0 auto 14px;
            position: relative;
            z-index: 2;
        }
        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-step p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.5;
        }
        .process-connector {
            display: none;
        }
        @media (min-width: 769px) {
            .process-steps::before {
                content: '';
                position: absolute;
                top: 24px;
                left: 12%;
                right: 12%;
                height: 2px;
                background: var(--color-border);
                z-index: 0;
            }
        }
        @media (max-width: 768px) {
            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .process-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-xs);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            transition: all var(--transition-normal);
            color: var(--color-text-tertiary);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #1a3a6b 0%, #1e4d8c 50%, #1a406e 100%);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 70px 0;
            text-align: center;
        }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: rgba(15,30,55,0.8);
            z-index: 1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            color: #fff;
        }
        .cta-content h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-content p {
            color: #c8d6f0;
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            padding: 14px 36px;
            background: #fff;
            color: var(--color-primary-dark);
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-md);
        }
        .btn-cta:hover {
            background: #f0f4ff;
            color: var(--color-primary);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1E293B;
            color: #c8d2e0;
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
        }
        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: #94a3b8;
            line-height: 1.6;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: #94a3b8;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }

/* roulang page: article */
:root {
            --color-primary: #2B6CB0;
            --color-primary-light: #3B82C4;
            --color-primary-dark: #1E4E7A;
            --color-accent: #E67E22;
            --color-accent-light: #F0A04B;
            --color-accent-dark: #C96A15;
            --color-bg: #F7F8FA;
            --color-white: #FFFFFF;
            --color-text: #2D3748;
            --color-text-light: #5A6B7C;
            --color-text-muted: #8899A8;
            --color-border: #E2E8F0;
            --color-border-light: #EDF2F7;
            --color-tag-bg: #EBF4FA;
            --color-tag-text: #2B6CB0;
            --color-success: #38A169;
            --color-warning: #D69E2E;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-xs: 0 1px 3px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-xl: 0 12px 40px rgba(0,0,0,0.12);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--color-bg);
            color: var(--color-text);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        a:hover {
            color: var(--color-primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

        /* ========== HEADER & NAV ========== */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--nav-height);
        }

        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }

        .logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-text);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

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

        .nav-links {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
        }

        .nav-links li a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            color: var(--color-text-light);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: var(--color-tag-bg);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            background: var(--color-tag-bg);
            font-weight: 600;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-nav-cta {
            display: inline-block;
            padding: 10px 22px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .btn-nav-cta:hover {
            background: var(--color-accent-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-border-light);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 0;
            }
            .nav-links li a {
                padding: 8px 12px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 12px 20px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-md);
                gap: 2px;
                z-index: 99;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .header-actions .btn-nav-cta {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 480px) {
            .logo-text {
                font-size: 1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 15px;
            }
            .header-actions .btn-nav-cta {
                padding: 7px 14px;
                font-size: 0.8rem;
            }
        }

        /* ========== BREADCRUMB BANNER ========== */
        .breadcrumb-banner {
            background: linear-gradient(135deg, rgba(43,108,176,0.88) 0%, rgba(30,78,122,0.92) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 40px 0;
            color: #fff;
            position: relative;
        }

        .breadcrumb-banner .breadcrumb-inner {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .breadcrumb-trail {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            flex-wrap: wrap;
        }

        .breadcrumb-trail a {
            color: rgba(255,255,255,0.85);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .breadcrumb-trail a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .breadcrumb-trail .sep {
            color: rgba(255,255,255,0.5);
            font-size: 0.75rem;
        }

        .breadcrumb-trail .current {
            color: #fff;
            font-weight: 500;
            opacity: 0.95;
        }

        .breadcrumb-banner .banner-subtitle {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.7);
            letter-spacing: 0.03em;
        }

        @media (max-width: 768px) {
            .breadcrumb-banner {
                padding: 28px 0;
            }
            .breadcrumb-trail {
                font-size: 0.8rem;
            }
        }

        /* ========== MAIN CONTENT AREA ========== */
        .article-main-section {
            padding: 48px 0 32px;
            flex: 1;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 40px;
            align-items: start;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr 280px;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        /* Article Content Column */
        .article-content-col {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 36px 40px;
            overflow: hidden;
        }

        @media (max-width: 768px) {
            .article-content-col {
                padding: 24px 20px;
                border-radius: var(--radius-md);
            }
        }

        .article-meta-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .article-category-tag {
            display: inline-block;
            padding: 5px 14px;
            background: var(--color-tag-bg);
            color: var(--color-tag-text);
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .article-date {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-date i {
            font-size: 0.8rem;
        }

        .article-content-col h1 {
            font-size: 1.85rem;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        @media (max-width: 768px) {
            .article-content-col h1 {
                font-size: 1.45rem;
            }
        }

        .article-featured-image {
            margin-bottom: 24px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
        }

        .article-featured-image img {
            width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        .article-body {
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--color-text);
        }

        .article-body h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--color-text);
            margin: 32px 0 14px;
            padding-bottom: 8px;
            border-bottom: 2px solid var(--color-border-light);
        }

        .article-body h3 {
            font-size: 1.18rem;
            font-weight: 600;
            color: var(--color-text);
            margin: 24px 0 10px;
        }

        .article-body p {
            margin-bottom: 16px;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 16px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 6px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--color-primary);
            padding: 14px 20px;
            margin: 20px 0;
            background: var(--color-tag-bg);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-light);
            font-style: italic;
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 16px 0;
            box-shadow: var(--shadow-xs);
        }

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--color-primary-dark);
        }

        .article-body code {
            background: #f4f5f7;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #c7254e;
        }

        .article-body pre {
            background: #1a1a2e;
            color: #e0e0e0;
            padding: 20px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 16px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .article-body pre code {
            background: none;
            color: inherit;
            padding: 0;
        }

        .article-footer-meta {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
        }

        .article-footer-meta .meta-source {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-footer-meta .meta-source i {
            color: var(--color-primary);
        }

        .article-share-btns {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .article-share-btns button {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 1px solid var(--color-border);
            background: var(--color-white);
            cursor: pointer;
            font-size: 0.85rem;
            color: var(--color-text-light);
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .article-share-btns button:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        /* Sidebar */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 24px;
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-border-light);
        }

        .sidebar-related-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .sidebar-related-list li a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--color-text-light);
            font-size: 0.9rem;
            line-height: 1.5;
            padding: 8px 10px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .sidebar-related-list li a:hover {
            background: var(--color-tag-bg);
            color: var(--color-primary);
        }

        .sidebar-related-list li a .related-thumb {
            width: 60px;
            height: 44px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .sidebar-tags .tag-pill {
            display: inline-block;
            padding: 6px 14px;
            background: var(--color-border-light);
            color: var(--color-text-light);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            cursor: pointer;
            text-decoration: none;
        }

        .sidebar-tags .tag-pill:hover {
            background: var(--color-tag-bg);
            color: var(--color-primary);
        }

        @media (max-width: 768px) {
            .article-sidebar {
                gap: 16px;
            }
            .sidebar-card {
                padding: 18px;
                border-radius: var(--radius-md);
            }
        }

        /* ========== RELATED POSTS SECTION ========== */
        .related-posts-section {
            padding: 32px 0 48px;
        }

        .related-posts-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 24px;
            text-align: center;
        }

        .related-posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

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

        @media (max-width: 600px) {
            .related-posts-grid {
                grid-template-columns: 1fr;
            }
        }

        .related-post-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-normal);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .related-post-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .related-post-card .card-img-wrap {
            height: 180px;
            overflow: hidden;
            position: relative;
        }

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

        .related-post-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .related-post-card .card-body {
            padding: 18px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-post-card .card-body h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .related-post-card .card-body p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.55;
            flex: 1;
        }

        .related-post-card .card-body .card-link {
            display: inline-block;
            margin-top: 10px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-primary);
        }

        /* ========== FAQ SECTION ========== */
        .faq-section {
            padding: 48px 0 56px;
            background: var(--color-white);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .faq-section .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 28px;
            text-align: center;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--color-bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
        }

        .faq-item.active {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            padding: 16px 20px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            background: none;
            border: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--color-border-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            transition: all var(--transition-fast);
        }

        .faq-item.active .faq-question .faq-icon {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(180deg);
        }

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

        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 0.93rem;
            color: var(--color-text-light);
            line-height: 1.7;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            padding: 52px 0;
            text-align: center;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: #fff;
        }

        .cta-section h2 {
            font-size: 1.65rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: 1rem;
            opacity: 0.9;
            margin-bottom: 22px;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-cta-primary {
            display: inline-block;
            padding: 13px 32px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition-fast);
            box-shadow: 0 4px 14px rgba(230,126,34,0.4);
            border: none;
            cursor: pointer;
        }

        .btn-cta-primary:hover {
            background: var(--color-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(230,126,34,0.5);
            color: #fff;
        }

        .btn-cta-outline {
            display: inline-block;
            padding: 13px 32px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.6);
            border-radius: 28px;
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .btn-cta-outline:hover {
            background: rgba(255,255,255,0.12);
            border-color: #fff;
            color: #fff;
        }

        /* ========== NOT FOUND STATE ========== */
        .not-found-state {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found-state .nf-icon {
            font-size: 3.5rem;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }

        .not-found-state h2 {
            font-size: 1.4rem;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .not-found-state p {
            color: var(--color-text-muted);
            margin-bottom: 20px;
        }

        .not-found-state .btn-back {
            display: inline-block;
            padding: 11px 26px;
            background: var(--color-primary);
            color: #fff;
            border-radius: 25px;
            font-weight: 600;
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .not-found-state .btn-back:hover {
            background: var(--color-primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1d23;
            color: #c5c9d2;
            padding: 48px 0 0;
            margin-top: auto;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.65;
            color: #9da3af;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #e8eaed;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: #9da3af;
            font-size: 0.88rem;
            text-decoration: none;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-col ul li a i {
            font-size: 0.8rem;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.82rem;
            color: #6b7280;
        }

        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 600px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

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

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #2563EB;
            --color-primary-dark: #1D4ED8;
            --color-primary-light: #DBEAFE;
            --color-accent: #F59E0B;
            --color-accent-dark: #D97706;
            --color-accent-light: #FEF3C7;
            --color-bg: #F8FAFC;
            --color-white: #FFFFFF;
            --color-text: #1E293B;
            --color-text-secondary: #64748B;
            --color-text-muted: #94A3B8;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --color-success: #10B981;
            --color-success-light: #D1FAE5;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.08);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.10);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ========== 基础 Reset ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            min-height: 100vh;
        }

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

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

        a:hover {
            color: var(--color-primary-dark);
        }

        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

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

        button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
        }

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

        h1, h2, h3, h4, h5, h6 {
            margin: 0 0 0.5em;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        h1 { font-size: 2.5rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }

        p {
            margin: 0 0 1em;
        }

        /* ========== 容器 ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container--narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== 板块间距 ========== */
        .section {
            padding: 70px 0;
        }

        .section--light {
            background-color: var(--color-white);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }

        .section--accent-bg {
            background: linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 100%);
        }

        .section--dark {
            background-color: #0F172A;
            color: #E2E8F0;
        }

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

        .section-header h2 {
            font-size: 2rem;
            margin-bottom: 12px;
        }

        .section-header .section-subtitle {
            color: var(--color-text-secondary);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        .section--dark .section-header h2 {
            color: #FFFFFF;
        }

        .section--dark .section-subtitle {
            color: #CBD5E1;
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-bar {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            padding: 12px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: var(--color-border);
            font-size: 0.75rem;
        }

        .breadcrumb .current {
            color: var(--color-primary);
            font-weight: 600;
        }

        /* ========== 导航 Header ========== */
        .site-header {
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 1000;
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: 1200px;
            margin: 0 auto;
            gap: 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--color-primary), #3B82F6);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

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

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

        .nav-links li a {
            display: inline-block;
            padding: 10px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            font-weight: 600;
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .header-cta {
            flex-shrink: 0;
        }

        .btn-nav-cta {
            display: inline-block;
            padding: 10px 22px;
            background: var(--color-primary);
            color: #fff !important;
            border-radius: 25px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-nav-cta:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 8px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-bg);
        }

        /* ========== Hero 板块 ========== */
        .hero-section {
            position: relative;
            padding: 90px 0 100px;
            background: linear-gradient(170deg, #EFF6FF 0%, #DBEAFE 30%, #F8FAFC 70%, #FFFFFF 100%);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            display: flex;
            align-items: center;
            gap: 50px;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            flex: 1;
            min-width: 0;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: 25px;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }

        .hero-badge i {
            margin-right: 6px;
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.2;
            color: #0F172A;
        }

        .hero-content h1 .highlight {
            color: var(--color-primary);
            position: relative;
        }

        .hero-content .hero-desc {
            font-size: 1.15rem;
            color: var(--color-text-secondary);
            margin-bottom: 28px;
            line-height: 1.8;
            max-width: 540px;
        }

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

        .btn-primary {
            display: inline-block;
            padding: 14px 32px;
            background: var(--color-primary);
            color: #fff !important;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 30px;
            border: none;
            transition: all var(--transition-normal);
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(37, 99, 235, 0.4);
        }

        .btn-outline {
            display: inline-block;
            padding: 14px 32px;
            background: var(--color-white);
            color: var(--color-primary) !important;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 30px;
            border: 2px solid var(--color-primary);
            transition: all var(--transition-normal);
            text-decoration: none;
        }

        .btn-outline:hover {
            background: var(--color-primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .hero-visual {
            flex: 0 0 460px;
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }

        .hero-visual .floating-card {
            position: absolute;
            bottom: -20px;
            left: -30px;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            box-shadow: var(--shadow-lg);
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            font-size: 0.9rem;
            animation: floatUpDown 3s ease-in-out infinite;
        }

        .floating-card .fc-icon {
            width: 44px;
            height: 44px;
            background: var(--color-success-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-success);
            font-size: 1.2rem;
        }

        @keyframes floatUpDown {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .hero-stats-row {
            display: flex;
            gap: 30px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-secondary);
        }

        .hero-stat-item strong {
            font-size: 1.4rem;
            color: var(--color-primary);
            font-weight: 700;
        }

        /* ========== 优势卡片 ========== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .advantage-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }

        .advantage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-light);
        }

        .advantage-card .adv-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            transition: all var(--transition-normal);
        }

        .adv-icon--blue { background: #DBEAFE; color: #2563EB; }
        .adv-icon--amber { background: #FEF3C7; color: #F59E0B; }
        .adv-icon--green { background: #D1FAE5; color: #10B981; }
        .adv-icon--purple { background: #EDE9FE; color: #7C3AED; }

        .advantage-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .advantage-card p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 课程卡片网格 ========== */
        .courses-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .course-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            display: flex;
            flex-direction: column;
        }

        .course-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: var(--color-primary-light);
        }

        .course-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
        }

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

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

        .course-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 5px 12px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            border-radius: 20px;
            z-index: 2;
        }

        .course-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .course-card .card-body h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }

        .course-card .card-body .card-meta {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .course-card .card-body .card-meta span i {
            margin-right: 4px;
            color: var(--color-primary);
        }

        .course-card .card-body .card-desc {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }

        .course-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            transition: gap var(--transition-fast);
            text-decoration: none;
        }

        .course-card .card-body .card-link:hover {
            gap: 10px;
            color: var(--color-primary-dark);
        }

        /* ========== 场景卡片 ========== */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--transition-normal);
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-light);
        }

        .scenario-card .sc-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
        }

        .sc-icon--blue { background: #DBEAFE; color: #2563EB; }
        .sc-icon--amber { background: #FEF3C7; color: #F59E0B; }
        .sc-icon--green { background: #D1FAE5; color: #10B981; }
        .sc-icon--purple { background: #EDE9FE; color: #7C3AED; }

        .scenario-card .sc-info h3 {
            font-size: 1.1rem;
            margin-bottom: 6px;
        }

        .scenario-card .sc-info p {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ========== 学习流程 ========== */
        .steps-list {
            display: flex;
            gap: 0;
            counter-reset: step;
            position: relative;
        }

        .steps-list::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 40px;
            right: 40px;
            height: 3px;
            background: var(--color-border);
            border-radius: 3px;
            z-index: 0;
        }

        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 1;
            counter-increment: step;
        }

        .step-circle {
            width: 88px;
            height: 88px;
            border-radius: 50%;
            background: var(--color-white);
            border: 3px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            transition: all var(--transition-normal);
            position: relative;
        }

        .step-item:hover .step-circle {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.08);
            transform: scale(1.05);
        }

        .step-item h4 {
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            margin: 0;
        }

        /* ========== 数据统计 ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-block {
            padding: 20px;
        }

        .stat-block .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-block .stat-label {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        .section--dark .stat-block .stat-number {
            color: #60A5FA;
        }

        .section--dark .stat-block .stat-label {
            color: #CBD5E1;
        }

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

        .faq-item {
            background: var(--color-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: var(--color-primary-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-text);
            cursor: pointer;
            text-align: left;
            gap: 16px;
            transition: background var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--color-primary-light);
            color: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-normal);
            font-size: 0.8rem;
        }

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

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

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

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--color-text-secondary);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        /* ========== CTA 板块 ========== */
        .cta-section {
            background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 40%, #1E40AF 100%);
            border-radius: var(--radius-xl);
            padding: 56px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            margin: 0 20px;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -60px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.1rem;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }

        .btn-cta-large {
            display: inline-block;
            padding: 16px 40px;
            background: #fff;
            color: var(--color-primary) !important;
            font-weight: 700;
            font-size: 1.05rem;
            border-radius: 30px;
            transition: all var(--transition-normal);
            text-decoration: none;
            position: relative;
            z-index: 1;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }

        .btn-cta-large:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.25);
            background: #F0F9FF;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 50px 0 24px;
            margin-top: 0;
        }

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

        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
        }

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

        .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
            text-decoration: none;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #64748B;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .courses-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .scenarios-grid {
                grid-template-columns: 1fr 1fr;
            }

            .hero-inner {
                flex-direction: column;
                text-align: center;
            }

            .hero-content .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-visual {
                flex: 0 0 auto;
                max-width: 460px;
                width: 100%;
            }

            .hero-stats-row {
                justify-content: center;
            }

            .hero-visual .floating-card {
                left: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            h1 {
                font-size: 2.2rem;
            }

            .hero-content h1 {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 12px 20px;
                box-shadow: var(--shadow-lg);
                border-bottom: 2px solid var(--color-border);
                gap: 2px;
                z-index: 999;
            }

            .nav-links.show {
                display: flex;
            }

            .nav-links li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }

            .header-cta {
                display: none;
            }

            .header-inner {
                flex-wrap: wrap;
            }

            .advantages-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .courses-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .scenarios-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .steps-list {
                flex-direction: column;
                gap: 24px;
            }

            .steps-list::before {
                display: none;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .section {
                padding: 48px 0;
            }

            .hero-section {
                padding: 50px 0 60px;
            }

            .hero-content h1 {
                font-size: 1.9rem;
            }

            .hero-visual .floating-card {
                position: relative;
                bottom: auto;
                left: auto;
                margin-top: 16px;
                animation: none;
            }

            .cta-section {
                margin: 0 12px;
                padding: 40px 24px;
                border-radius: var(--radius-lg);
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                text-align: center;
            }

            .footer-brand p {
                max-width: 400px;
                margin: 0 auto;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

            .hero-stats-row {
                gap: 16px;
            }
        }

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

            .stats-row {
                grid-template-columns: 1fr;
            }

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .btn-primary,
            .btn-outline {
                width: 100%;
                text-align: center;
            }

            h1 {
                font-size: 1.7rem;
            }

            .hero-content h1 {
                font-size: 1.6rem;
            }

            .hero-content .hero-desc {
                font-size: 1rem;
            }

            .hero-badge {
                font-size: 0.8rem;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .scenario-card {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }

            .container {
                padding: 0 14px;
            }
        }

/* roulang page: category3 */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #2563EB;
            --color-primary-dark: #1D4ED8;
            --color-primary-light: #DBEAFE;
            --color-secondary: #F59E0B;
            --color-secondary-light: #FEF3C7;
            --color-accent: #10B981;
            --color-accent-light: #D1FAE5;
            --color-bg: #F8FAFC;
            --color-white: #FFFFFF;
            --color-text: #1E293B;
            --color-text-soft: #64748B;
            --color-text-light: #94A3B8;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 20px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 36px rgba(0,0,0,0.10);
            --shadow-xl: 0 20px 50px rgba(0,0,0,0.12);
            --transition-fast: 0.15s ease;
            --transition-normal: 0.25s ease;
            --transition-slow: 0.35s ease;
            --font-heading: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --max-width: 1200px;
            --nav-height: 68px;
        }

        /* ========== 基础 Reset ========== */
        *, *::before, *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        button, .btn {
            cursor: pointer;
            font-family: var(--font-body);
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            line-height: 1.3;
            margin: 0;
            color: var(--color-text);
        }
        p {
            margin: 0;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-white);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--nav-height);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-heading);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo-area a {
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-area a:hover {
            color: var(--color-primary);
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-links li a {
            display: inline-block;
            padding: 9px 18px;
            border-radius: 24px;
            color: var(--color-text-soft);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
        }
        .nav-links li a.active {
            color: var(--color-white);
            background: var(--color-primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .nav-cta {
            display: inline-block;
            padding: 10px 22px;
            border-radius: 24px;
            background: var(--color-secondary);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
            margin-left: 12px;
            box-shadow: var(--shadow-sm);
        }
        .nav-cta:hover {
            background: #E08F00;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 8px;
            line-height: 1;
        }
        @media (max-width: 1024px) {
            .nav-links li a {
                padding: 8px 14px;
                font-size: 0.9rem;
            }
            .nav-cta {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: var(--color-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all var(--transition-normal);
                pointer-events: none;
                z-index: 999;
            }
            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                gap: 2px;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-links li a {
                display: block;
                text-align: center;
                padding: 12px 18px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
            }
            .nav-cta {
                display: block;
                text-align: center;
                margin-left: 0;
                margin-top: 10px;
                width: 100%;
                padding: 12px 20px;
                border-radius: var(--radius-sm);
            }
        }

        /* ========== 内页 Banner ========== */
        .inner-banner {
            position: relative;
            padding: 80px 0 70px;
            background: linear-gradient(160deg, #EEF2FF 0%, #F0F4FF 30%, #FEF9E7 70%, #FFF8F0 100%);
            overflow: hidden;
        }
        .inner-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 340px;
            height: 340px;
            border-radius: 50%;
            background: rgba(37,99,235,0.06);
            z-index: 0;
        }
        .inner-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(245,158,11,0.07);
            z-index: 0;
        }
        .inner-banner .container {
            position: relative;
            z-index: 1;
        }
        .inner-banner .banner-content {
            display: flex;
            align-items: center;
            gap: 40px;
        }
        .inner-banner .banner-text {
            flex: 1;
        }
        .inner-banner .banner-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 16px;
        }
        .inner-banner h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .inner-banner h1 span {
            color: var(--color-primary);
        }
        .inner-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--color-text-soft);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 640px;
        }
        .inner-banner .banner-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .inner-banner .stat-item {
            text-align: center;
            min-width: 80px;
        }
        .inner-banner .stat-num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .inner-banner .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            margin-top: 4px;
        }
        .inner-banner .banner-image {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .inner-banner .banner-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        @media (max-width: 1024px) {
            .inner-banner {
                padding: 60px 0 50px;
            }
            .inner-banner .banner-content {
                flex-direction: column;
                gap: 30px;
            }
            .inner-banner .banner-image {
                flex: 0 0 auto;
                max-width: 440px;
                width: 100%;
            }
            .inner-banner h1 {
                font-size: 2rem;
            }
            .inner-banner .banner-desc {
                font-size: 1rem;
            }
        }
        @media (max-width: 640px) {
            .inner-banner {
                padding: 44px 0 36px;
            }
            .inner-banner h1 {
                font-size: 1.6rem;
            }
            .inner-banner .banner-desc {
                font-size: 0.95rem;
            }
            .inner-banner .banner-stats {
                gap: 16px;
            }
            .inner-banner .stat-num {
                font-size: 1.5rem;
            }
            .inner-banner .stat-label {
                font-size: 0.78rem;
            }
        }

        /* ========== 板块通用 ========== */
        .section {
            padding: 70px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.82rem;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-header .section-sub {
            color: var(--color-text-soft);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .section-header .section-sub {
                font-size: 0.95rem;
            }
        }

        /* ========== 资源分类卡片网格 ========== */
        .res-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .res-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            position: relative;
            overflow: hidden;
        }
        .res-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--color-primary-light);
        }
        .res-card .res-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 18px;
            flex-shrink: 0;
        }
        .res-card .res-icon.blue {
            background: #DBEAFE;
            color: #2563EB;
        }
        .res-card .res-icon.amber {
            background: #FEF3C7;
            color: #D97706;
        }
        .res-card .res-icon.green {
            background: #D1FAE5;
            color: #059669;
        }
        .res-card .res-icon.purple {
            background: #EDE9FE;
            color: #7C3AED;
        }
        .res-card .res-icon.rose {
            background: #FFE4E6;
            color: #E11D48;
        }
        .res-card .res-icon.cyan {
            background: #CFFAFE;
            color: #0891B2;
        }
        .res-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .res-card .res-desc {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            margin-bottom: 14px;
        }
        .res-card .res-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-light);
        }
        .res-card .res-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .res-card .res-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 12px;
            border-radius: 14px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .res-card .res-badge.hot {
            background: #FEE2E2;
            color: #DC2626;
        }
        .res-card .res-badge.new {
            background: #D1FAE5;
            color: #059669;
        }
        @media (max-width: 1024px) {
            .res-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .res-grid {
                grid-template-columns: 1fr;
            }
            .res-card {
                padding: 22px 18px;
            }
        }

        /* ========== 热门资源列表 ========== */
        .hot-resources {
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
        }
        .hot-res-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 20px 24px;
            border-bottom: 1px solid var(--color-border-light);
            transition: background var(--transition-fast);
        }
        .hot-res-item:last-child {
            border-bottom: none;
        }
        .hot-res-item:hover {
            background: #FAFBFC;
        }
        .hot-res-item .hot-rank {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
        }
        .hot-res-item .hot-rank.r1 {
            background: linear-gradient(135deg, #F59E0B, #E88D00);
        }
        .hot-res-item .hot-rank.r2 {
            background: linear-gradient(135deg, #94A3B8, #78889B);
        }
        .hot-res-item .hot-rank.r3 {
            background: linear-gradient(135deg, #CD7F32, #B8722D);
        }
        .hot-res-item .hot-rank.rn {
            background: #E2E8F0;
            color: #64748B;
        }
        .hot-res-item .hot-info {
            flex: 1;
            min-width: 0;
        }
        .hot-res-item .hot-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-res-item .hot-info .hot-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .hot-res-item .hot-info .hot-tag {
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 12px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-weight: 500;
        }
        .hot-res-item .hot-dl {
            flex-shrink: 0;
            padding: 8px 18px;
            border-radius: 20px;
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .hot-res-item .hot-dl:hover {
            background: var(--color-primary-dark);
            box-shadow: var(--shadow-sm);
        }
        @media (max-width: 640px) {
            .hot-res-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 16px;
            }
            .hot-res-item .hot-rank {
                width: 32px;
                height: 32px;
                font-size: 0.8rem;
            }
            .hot-res-item .hot-dl {
                width: 100%;
                text-align: center;
            }
        }

        /* ========== 使用场景 ========== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--color-white);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            text-align: center;
            transition: all var(--transition-normal);
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .scenario-card .sc-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: var(--color-primary-light);
            color: var(--color-primary);
        }
        .scenario-card h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }
        @media (max-width: 1024px) {
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 640px) {
            .scenario-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== 流程步骤 ========== */
        .steps-flow {
            display: flex;
            gap: 0;
            align-items: flex-start;
            position: relative;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            padding: 0 16px;
        }
        .step-item .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow-md);
        }
        .step-item .step-line {
            position: absolute;
            top: 28px;
            left: calc(50% + 28px);
            width: calc(100% - 56px);
            height: 3px;
            background: var(--color-border);
            z-index: 1;
        }
        .step-item:last-child .step-line {
            display: none;
        }
        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            line-height: 1.5;
        }
        @media (max-width: 768px) {
            .steps-flow {
                flex-direction: column;
                gap: 20px;
                align-items: center;
            }
            .step-item {
                padding: 0;
                max-width: 320px;
            }
            .step-item .step-line {
                display: none;
            }
        }

        /* ========== FAQ Accordion ========== */
        .faq-section {
            background: var(--color-white);
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
            overflow: hidden;
            background: #FAFBFC;
            transition: all var(--transition-fast);
        }
        .accordion-item:hover {
            border-color: var(--color-border);
        }
        .accordion-title {
            padding: 18px 20px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--color-text);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: all var(--transition-fast);
        }
        .accordion-title:hover {
            color: var(--color-primary);
        }
        .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--color-text-soft);
            transition: transform var(--transition-normal);
            flex-shrink: 0;
            margin-left: 12px;
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--color-primary);
        }
        .accordion-content {
            padding: 0 20px 18px;
            display: none;
            font-size: 0.93rem;
            color: var(--color-text-soft);
            line-height: 1.7;
        }
        .accordion-item.is-active .accordion-content {
            display: block;
        }
        .accordion-item.is-active {
            background: var(--color-white);
            border-color: var(--color-primary-light);
            box-shadow: var(--shadow-sm);
        }

        /* ========== CTA 区块 ========== */
        .cta-block {
            background: linear-gradient(135deg, #1E40AF 0%, #2563EB 40%, #3B82F6 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -100px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            z-index: 0;
        }
        .cta-block::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            z-index: 0;
        }
        .cta-block .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 28px;
            background: #fff;
            color: var(--color-primary) !important;
            font-weight: 700;
            font-size: 1rem;
            transition: all var(--transition-normal);
            box-shadow: var(--shadow-md);
        }
        .btn-cta-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .btn-cta-outline {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 28px;
            background: transparent;
            color: #fff !important;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.5);
            transition: all var(--transition-normal);
        }
        .btn-cta-outline:hover {
            border-color: #fff;
            background: rgba(255,255,255,0.1);
        }
        @media (max-width: 640px) {
            .cta-block {
                padding: 40px 24px;
                border-radius: var(--radius-lg);
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .cta-block p {
                font-size: 0.95rem;
            }
            .btn-cta-primary, .btn-cta-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                text-align: center;
            }
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: #1E293B;
            color: #CBD5E1;
            padding: 50px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            color: #94A3B8;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: #94A3B8;
            font-size: 0.88rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: #64748B;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ========== 辅助组件 ========== */
        .text-center { text-align: center; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .mt-8 { margin-top: 8px; }
        .mt-16 { margin-top: 16px; }

        /* 图片加载优化 */
        img {
            transition: opacity 0.3s ease;
        }
        img[loading="lazy"] {
            opacity: 0;
        }
        img[loading="lazy"].loaded {
            opacity: 1;
        }

        /* 焦点可访问性 */
        a:focus-visible, button:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* 平滑过渡 */
        .res-card, .scenario-card, .hot-res-item, .accordion-item {
            will-change: transform;
        }

/* roulang page: category2 */
:root {
            --color-primary: #1a6b7a;
            --color-primary-light: #238b9a;
            --color-primary-dark: #12505c;
            --color-accent: #e8784a;
            --color-accent-light: #f08c65;
            --color-accent-dark: #c75d30;
            --color-bg: #f7f8fa;
            --color-bg-alt: #eef1f5;
            --color-surface: #ffffff;
            --color-text: #2c2c2c;
            --color-text-secondary: #5a5a5a;
            --color-text-muted: #888888;
            --color-border: #e0e4e8;
            --color-border-light: #eef0f3;
            --color-success: #2d9d6b;
            --color-warning: #f0a040;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 22px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.13);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:focus-visible {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 3px;
            border-radius: 3px;
        }

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

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

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            color: var(--color-text);
            margin-top: 0;
        }

        h1 { font-size: 2.6rem; letter-spacing: -0.02em; }
        h2 { font-size: 2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.45rem; }
        h4 { font-size: 1.15rem; }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .container-narrow {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow var(--transition-normal);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-sm);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            gap: 20px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .logo-text {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--color-text);
            white-space: nowrap;
            letter-spacing: -0.01em;
        }

        .logo-text a {
            color: inherit;
            text-decoration: none;
        }

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

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

        .nav-links li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 20px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links li a:hover {
            color: var(--color-primary);
            background: rgba(26, 107, 122, 0.06);
        }

        .nav-links li a.active {
            color: var(--color-primary);
            background: rgba(26, 107, 122, 0.10);
            font-weight: 600;
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .btn-nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 22px;
            font-weight: 600;
            font-size: 0.9rem;
            background: var(--color-accent);
            color: #fff !important;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-nav-cta:hover {
            background: var(--color-accent-dark);
            box-shadow: var(--shadow-sm);
            transform: translateY(-1px);
        }

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

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            font-size: 1.5rem;
            color: var(--color-text);
            line-height: 1;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            background: var(--color-bg-alt);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-links li a {
                padding: 7px 12px;
                font-size: 0.88rem;
                border-radius: 16px;
            }
            .btn-nav-cta {
                padding: 8px 16px;
                font-size: 0.84rem;
                border-radius: 18px;
            }
            .logo-text {
                font-size: 1.05rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
            .header-inner {
                height: 56px;
                gap: 12px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 16px;
                border-bottom: 1px solid var(--color-border);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all var(--transition-normal);
                z-index: 999;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links li a {
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                font-size: 1rem;
                display: block;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .nav-cta {
                display: none;
            }
            .header-inner {
                height: 56px;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            background: linear-gradient(170deg, rgba(26, 107, 122, 0.92) 0%, rgba(18, 80, 92, 0.94) 40%, rgba(10, 45, 52, 0.96) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            color: #fff;
            padding: 90px 0 100px;
            text-align: center;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -120px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            max-width: 750px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.18);
            border: 1px solid rgba(255, 255, 255, 0.28);
            color: #fff;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            margin-bottom: 22px;
            letter-spacing: 0.03em;
            backdrop-filter: blur(4px);
        }

        .hero-section h1 {
            color: #fff;
            font-size: 3rem;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 26px;
            font-weight: 600;
            font-size: 1.05rem;
            background: var(--color-accent);
            color: #fff;
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(232, 120, 74, 0.35);
        }

        .btn-hero-primary:hover {
            background: #f09060;
            box-shadow: 0 8px 24px rgba(232, 120, 74, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-hero-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 26px;
            font-weight: 600;
            font-size: 1.05rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.55);
            cursor: pointer;
            transition: all var(--transition-normal);
            text-decoration: none;
        }

        .btn-hero-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.8);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 60px 0 70px;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .btn-hero-primary,
            .btn-hero-outline {
                padding: 12px 24px;
                font-size: 0.95rem;
                border-radius: 22px;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

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

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

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            background: rgba(26, 107, 122, 0.08);
            padding: 5px 16px;
            border-radius: 14px;
            margin-bottom: 14px;
        }

        .section-header h2 {
            margin-bottom: 10px;
        }

        .section-header p {
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .section-header h2 {
                font-size: 1.55rem;
            }
        }

        /* ========== SERVICE CARDS ========== */
        .service-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 30px 26px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--color-border);
        }

        .service-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: var(--radius-md);
            margin-bottom: 18px;
            background: var(--color-bg-alt);
        }

        .service-card-icon-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            box-shadow: var(--shadow-sm);
            z-index: 2;
        }

        .service-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--color-text);
        }

        .service-card p {
            color: var(--color-text-secondary);
            font-size: 0.93rem;
            line-height: 1.6;
            margin-bottom: 16px;
            flex-grow: 1;
        }

        .service-card .card-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap var(--transition-fast);
            text-decoration: none;
        }

        .service-card .card-link:hover {
            gap: 9px;
            color: var(--color-primary-light);
        }

        /* ========== EXAM TYPE TAGS ========== */
        .exam-type-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .exam-type-tag {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 11px 22px;
            border-radius: 24px;
            font-weight: 500;
            font-size: 0.93rem;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            color: var(--color-text-secondary);
            transition: all var(--transition-fast);
            cursor: default;
            white-space: nowrap;
        }

        .exam-type-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(26, 107, 122, 0.04);
            box-shadow: var(--shadow-xs);
        }

        .exam-type-tag i {
            color: var(--color-primary);
            font-size: 0.9rem;
        }

        /* ========== PROCESS STEPS ========== */
        .process-step {
            text-align: center;
            padding: 20px 16px;
            position: relative;
        }

        .process-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1.3rem;
            margin-bottom: 16px;
            box-shadow: var(--shadow-sm);
            position: relative;
            z-index: 2;
        }

        .process-step h4 {
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
        }

        .process-connector {
            display: none;
        }

        @media (min-width: 769px) {
            .process-row {
                position: relative;
            }
            .process-row::before {
                content: '';
                position: absolute;
                top: 42px;
                left: 12%;
                right: 12%;
                height: 2px;
                background: var(--color-border);
                z-index: 1;
            }
        }

        /* ========== STATS ========== */
        .stat-card {
            text-align: center;
            padding: 28px 18px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }

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

        .stat-number {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-secondary);
            font-weight: 500;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 750px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border-light);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

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

        .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1.02rem;
            color: var(--color-text);
            user-select: none;
            transition: background var(--transition-fast);
            gap: 12px;
        }

        .faq-question:hover {
            background: rgba(26, 107, 122, 0.03);
        }

        .faq-question i {
            flex-shrink: 0;
            transition: transform var(--transition-fast);
            color: var(--color-text-muted);
            font-size: 0.85rem;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--color-primary);
        }

        .faq-answer {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: all var(--transition-normal);
            color: var(--color-text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            padding: 0 22px 18px;
            max-height: 400px;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: #fff;
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }

        .cta-section h2 {
            color: #fff;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.08rem;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
            max-width: 550px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 38px;
            border-radius: 28px;
            font-weight: 700;
            font-size: 1.1rem;
            background: #fff;
            color: var(--color-primary-dark);
            border: none;
            cursor: pointer;
            transition: all var(--transition-normal);
            text-decoration: none;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
            position: relative;
            z-index: 1;
        }

        .btn-cta-large:hover {
            background: #fefefe;
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.25);
            transform: translateY(-3px);
            color: var(--color-primary-dark);
        }

        .btn-cta-large:active {
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #1a1f24;
            color: #c5c9ce;
            padding: 50px 0 0;
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.3rem;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            color: #a0a5ab;
            line-height: 1.6;
            font-size: 0.88rem;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-weight: 600;
        }

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

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

        .footer-col ul li a {
            color: #a0a5ab;
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.88rem;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-bottom {
            text-align: center;
            padding: 20px 0;
            color: #787d83;
            font-size: 0.82rem;
        }

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

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

        /* ========== Foundation overrides ========== */
        .foundation-override .button {
            font-family: var(--font-body);
        }

        .grid-x.grid-padding-x>.cell {
            padding-left: 14px;
            padding-right: 14px;
        }

        @media (max-width: 768px) {
            .grid-x.grid-padding-x>.cell {
                padding-left: 10px;
                padding-right: 10px;
            }
        }