/* roulang page: index */
:root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f2440;
            --accent: #e8b84b;
            --accent-light: #f0d080;
            --accent-dark: #c9a030;
            --bg-light: #f8f7f4;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d4a;
            --text-muted: #7a7a8a;
            --border-light: #e8e6e0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            background: var(--bg-light);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header & Nav */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .nav-logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--accent);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }
        .nav-links li a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            transition: var(--transition);
            position: relative;
        }
        .nav-links li a:hover,
        .nav-links li a.active {
            color: var(--primary);
            background: rgba(26,58,92,0.06);
        }
        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: var(--bg-light);
            border: 1px solid var(--border-light);
            border-radius: 40px;
            padding: 0 16px 0 20px;
            height: 42px;
            min-width: 200px;
            transition: var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(232,184,75,0.15);
        }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 0.9rem;
            color: var(--text-dark);
            width: 100%;
            padding: 8px 0;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search button {
            background: none;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            padding: 4px 0 4px 8px;
            font-size: 1rem;
            transition: var(--transition);
        }
        .nav-search button:hover {
            color: var(--accent-dark);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark) !important;
            padding: 10px 28px !important;
            border-radius: 40px !important;
            font-weight: 600 !important;
            font-size: 0.9rem !important;
            box-shadow: 0 4px 12px rgba(232,184,75,0.3);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,184,75,0.4);
            color: var(--primary-dark) !important;
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-dark);
            cursor: pointer;
            padding: 4px;
        }
        /* Hero */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            isolation: isolate;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,36,64,0.85) 0%, rgba(26,58,92,0.70) 50%, rgba(15,36,64,0.60) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-content {
            max-width: 680px;
            padding: 80px 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(232,184,75,0.18);
            border: 1px solid rgba(232,184,75,0.3);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--accent-light);
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: 3.5rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark) !important;
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            box-shadow: 0 6px 20px rgba(232,184,75,0.35);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232,184,75,0.45);
            color: var(--primary-dark) !important;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: #fff !important;
            padding: 13px 34px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 1rem;
            border: 2px solid rgba(255,255,255,0.4);
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            border-color: var(--accent);
            color: var(--accent) !important;
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.15);
        }
        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat h3 span {
            color: var(--accent);
        }
        .hero-stat p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 0;
        }
        /* Section */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-white);
        }
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-title p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-title .accent-line {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 16px auto 0;
        }
        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            background: rgba(26,58,92,0.08);
            color: var(--primary);
        }
        .card-icon.accent {
            background: rgba(232,184,75,0.15);
            color: var(--accent-dark);
        }
        .card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* Feature image block */
        .feature-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .feature-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .feature-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .feature-image:hover img {
            transform: scale(1.03);
        }
        .feature-text h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .feature-text p {
            font-size: 1.05rem;
            color: var(--text-body);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .feature-list {
            list-style: none;
            padding: 0;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 1rem;
            color: var(--text-body);
        }
        .feature-list li i {
            color: var(--accent-dark);
            font-size: 1.1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        /* CMS List */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .cms-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .cms-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .cms-card-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cms-card .cms-category {
            display: inline-block;
            background: rgba(232,184,75,0.12);
            color: var(--accent-dark);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 2px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            width: fit-content;
        }
        .cms-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .cms-card h3 a {
            color: var(--primary-dark);
        }
        .cms-card h3 a:hover {
            color: var(--primary-light);
        }
        .cms-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }
        .cms-card .cms-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .cms-card .cms-meta .cms-date i {
            margin-right: 4px;
        }
        .cms-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-light);
            color: var(--text-muted);
            font-size: 1rem;
        }
        /* Stats counter */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 40px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-card .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.2;
        }
        .stat-card .stat-number span {
            color: var(--accent);
        }
        .stat-card .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 12px;
            opacity: 0.3;
        }
        /* Steps */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 36px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-card .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 4px 12px rgba(232,184,75,0.25);
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* FAQ */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 500;
            font-size: 1rem;
            color: var(--primary-dark);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-content {
            text-align: center;
            padding: 80px 20px;
        }
        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 1.15rem;
            color: rgba(255,255,255,0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-cta {
            background: var(--accent);
            color: var(--primary-dark) !important;
            padding: 16px 40px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1.05rem;
            box-shadow: 0 6px 20px rgba(232,184,75,0.3);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(232,184,75,0.4);
            background: var(--accent-light);
        }
        .btn-outline-cta {
            background: transparent;
            color: #fff !important;
            border: 2px solid rgba(255,255,255,0.3);
            padding: 14px 36px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 1.05rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-outline-cta:hover {
            border-color: var(--accent);
            color: var(--accent) !important;
            transform: translateY(-2px);
        }
        /* Footer */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand h3 span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-block {
                gap: 40px;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-wrapper {
                height: 64px;
            }
            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
            }
            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links li a {
                padding: 12px 18px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .nav-links li a.active::after {
                display: none;
            }
            .nav-links li a.active {
                background: rgba(232,184,75,0.12);
                color: var(--accent-dark);
            }
            .nav-search {
                min-width: auto;
                flex: 1;
                max-width: 240px;
            }
            .nav-search input {
                width: 100%;
                min-width: 0;
            }
            .nav-cta {
                padding: 8px 18px !important;
                font-size: 0.85rem !important;
            }
            .nav-toggle {
                display: block;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 24px;
            }
            .hero-stat h3 {
                font-size: 1.5rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .feature-text h2 {
                font-size: 1.5rem;
            }
            .cms-list {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .steps-grid .step-card {
                padding: 24px 16px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-card {
                padding: 28px 16px;
            }
            .stat-card .stat-number {
                font-size: 2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .cta-content h2 {
                font-size: 1.7rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-content {
                padding: 60px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav-wrapper {
                height: 60px;
                gap: 12px;
            }
            .nav-logo {
                font-size: 1.2rem;
            }
            .nav-search {
                display: none;
            }
            .nav-cta {
                padding: 6px 14px !important;
                font-size: 0.8rem !important;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .hero-stat h3 {
                font-size: 1.3rem;
            }
            .section {
                padding: 40px 0;
            }
            .section-title h2 {
                font-size: 1.4rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-content {
                padding: 48px 16px;
            }
            .cta-content h2 {
                font-size: 1.4rem;
            }
            .btn-primary, .btn-outline-light, .btn-cta, .btn-outline-cta {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px 16px;
                font-size: 0.88rem;
            }
        }
        /* Utility */
        .text-accent {
            color: var(--accent-dark);
        }
        .bg-accent-soft {
            background: rgba(232,184,75,0.06);
        }
        .gap-2 { gap: 8px; }
        .gap-3 { gap: 12px; }
        .gap-4 { gap: 16px; }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .mt-2 { margin-top: 8px; }
        .mt-4 { margin-top: 16px; }
        .mt-6 { margin-top: 24px; }
        .mb-4 { margin-bottom: 16px; }
        .mb-6 { margin-bottom: 24px; }
        .text-center { text-align: center; }

/* roulang page: article */
:root {
            --primary: #1a3a8a;
            --primary-light: #2a5bd7;
            --primary-dark: #0e2360;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #ef4444;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border-color: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.10);
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        a { color: inherit; text-decoration: none; transition: color 0.2s; }
        img { max-width: 100%; height: auto; display: block; }

        /* ==== 导航 ==== */
        .site-header {
            background: rgba(255,255,255,0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            position: sticky; top: 0; z-index: 100;
            padding: 0 0;
            height: 72px;
            display: flex;
            align-items: center;
        }
        .site-header .container { width: 100%; }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            height: 72px;
        }
        .nav-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-logo span { color: var(--secondary); }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 6px;
            margin: 0 16px;
            flex: 1;
            justify-content: center;
        }
        .nav-links li a {
            padding: 8px 18px;
            border-radius: 100px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary);
            transition: all 0.2s;
            white-space: nowrap;
        }
        .nav-links li a:hover { color: var(--primary); background: rgba(26,58,138,0.06); }
        .nav-links li a.active { color: #fff; background: var(--primary); }
        .nav-search {
            display: flex;
            align-items: center;
            background: #f1f5f9;
            border-radius: 100px;
            padding: 0 6px 0 18px;
            border: 1px solid transparent;
            transition: all 0.2s;
            flex-shrink: 0;
            max-width: 220px;
            width: 100%;
        }
        .nav-search:focus-within { border-color: var(--primary-light); background: #fff; box-shadow: 0 0 0 4px rgba(26,58,138,0.08); }
        .nav-search input {
            border: none;
            background: transparent;
            outline: none;
            padding: 8px 0;
            font-size: 0.9rem;
            width: 100%;
            color: var(--text-primary);
        }
        .nav-search input::placeholder { color: var(--text-muted); }
        .nav-search button {
            background: transparent;
            border: none;
            padding: 8px 12px;
            cursor: pointer;
            color: var(--text-muted);
            font-size: 1rem;
            transition: color 0.2s;
        }
        .nav-search button:hover { color: var(--primary); }
        .nav-cta {
            background: linear-gradient(135deg, var(--secondary), #f97316);
            color: #fff;
            padding: 10px 24px;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            transition: all 0.3s;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 15px rgba(245,158,11,0.35);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(245,158,11,0.45); }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-primary); cursor: pointer; padding: 6px; }

        /* ==== 文章详情 ==== */
        .article-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #1e40af 100%);
            overflow: hidden;
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .article-banner .container { position: relative; z-index: 1; }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: rgba(255,255,255,0.8); }
        .article-breadcrumb a:hover { color: #fff; }
        .article-breadcrumb .sep { color: rgba(255,255,255,0.4); }
        .article-category-badge {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(4px);
            padding: 4px 16px;
            border-radius: 100px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 16px;
            border: 1px solid rgba(255,255,255,0.2);
        }
        .article-title {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            max-width: 900px;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            flex-wrap: wrap;
        }
        .article-meta i { margin-right: 6px; }
        .article-meta span { display: flex; align-items: center; }

        .article-main {
            padding: 60px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 48px;
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--primary);
        }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body p { margin-bottom: 20px; }
        .article-body ul, .article-body ol { margin-bottom: 20px; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body a { color: var(--primary-light); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body img { border-radius: var(--radius-sm); margin: 24px 0; }
        .article-body blockquote {
            border-left: 4px solid var(--secondary);
            padding: 16px 24px;
            background: #fffbeb;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-secondary);
        }
        .article-body code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: #e11d48;
        }
        .article-not-found {
            text-align: center;
            padding: 80px 40px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
        }
        .article-not-found i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found h2 { font-size: 1.8rem; color: var(--text-primary); margin-bottom: 16px; }
        .article-not-found p { color: var(--text-secondary); margin-bottom: 24px; }
        .article-not-found a { color: var(--primary-light); font-weight: 600; }

        /* 侧边栏 */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            border: 1px solid var(--border-color);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--secondary);
        }
        .sidebar-list { list-style: none; }
        .sidebar-list li { margin-bottom: 12px; }
        .sidebar-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            padding: 6px 0;
            transition: all 0.2s;
        }
        .sidebar-list li a:hover { color: var(--primary); transform: translateX(4px); }
        .sidebar-list li a i { color: var(--secondary); font-size: 0.8rem; width: 18px; }
        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            color: #fff;
        }
        .sidebar-cta h4 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
        .sidebar-cta p { font-size: 0.9rem; opacity: 0.85; margin-bottom: 20px; }
        .sidebar-cta .btn-light {
            display: inline-block;
            background: #fff;
            color: var(--primary);
            padding: 12px 28px;
            border-radius: 100px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .sidebar-cta .btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.2); }

        /* ==== 推荐文章 ==== */
        .related-section {
            padding: 60px 0 80px;
            background: #f1f5f9;
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            color: var(--text-secondary);
            margin-bottom: 40px;
            font-size: 1rem;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s;
            border: 1px solid var(--border-color);
        }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
        .related-card-img {
            height: 180px;
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
        .related-card:hover .related-card-img img { transform: scale(1.05); }
        .related-card-body { padding: 20px 24px 24px; }
        .related-card-body h4 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: var(--text-primary); }
        .related-card-body h4 a:hover { color: var(--primary); }
        .related-card-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card-body .meta { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 12px; }

        /* ==== CTA 区块 ==== */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            text-align: center;
            color: #fff;
        }
        .article-cta h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
        .article-cta p { font-size: 1.1rem; opacity: 0.85; max-width: 600px; margin: 0 auto 32px; }
        .article-cta .btn-cta {
            display: inline-block;
            background: var(--secondary);
            color: #fff;
            padding: 16px 40px;
            border-radius: 100px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 4px 20px rgba(245,158,11,0.4);
        }
        .article-cta .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(245,158,11,0.55); }

        /* ==== 页脚 ==== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand h3 { font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 16px; }
        .footer-brand h3 span { color: var(--secondary); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: #94a3b8; max-width: 360px; }
        .footer-col h4 { color: #fff; font-size: 1rem; font-weight: 600; margin-bottom: 16px; }
        .footer-col ul { list-style: none; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: #94a3b8; font-size: 0.9rem; transition: color 0.2s; display: flex; align-items: center; gap: 8px; }
        .footer-col ul li a:hover { color: var(--secondary); }
        .footer-col ul li span { color: #94a3b8; font-size: 0.9rem; display: flex; align-items: center; gap: 8px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: #64748b;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a { color: #94a3b8; }
        .footer-bottom a:hover { color: var(--secondary); }

        /* ==== 响应式 ==== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; gap: 4px; border-bottom: 1px solid var(--border-color); box-shadow: var(--shadow-md); }
            .nav-links.open { display: flex; }
            .nav-links li a { padding: 12px 16px; }
            .nav-search { max-width: 160px; }
            .nav-cta { padding: 8px 16px; font-size: 0.8rem; }
            .nav-toggle { display: block; }
            .article-title { font-size: 1.8rem; }
            .article-body { padding: 24px; }
            .article-banner { padding: 48px 0 40px; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .nav-wrapper { gap: 8px; }
            .nav-logo { font-size: 1.3rem; }
            .nav-search { max-width: 120px; }
            .nav-search input { font-size: 0.8rem; }
            .nav-cta { padding: 6px 14px; font-size: 0.75rem; }
            .article-title { font-size: 1.4rem; }
            .article-body { padding: 16px; font-size: 0.95rem; }
            .article-meta { gap: 12px; font-size: 0.85rem; }
        }

/* roulang page: category1 */
:root {
            --primary: #d4292b;
            --primary-light: #e8593a;
            --primary-dark: #b31e20;
            --primary-bg: #fff5f2;
            --secondary: #1a1a2e;
            --secondary-light: #2d2d4a;
            --secondary-muted: #6b7280;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --neutral: #f8f9fa;
            --neutral-dark: #e9ecef;
            --text-body: #1f2937;
            --text-muted: #6b7280;
            --radius: 1rem;
            --radius-2xl: 1.5rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            color: var(--text-body);
            background: #ffffff;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        ::selection {
            background: var(--primary);
            color: #fff;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 1.25rem;
        }

        .nav-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .nav-logo span {
            color: var(--primary);
        }
        .nav-logo:hover {
            color: var(--secondary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 0.75rem;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            font-weight: 500;
            font-size: 0.925rem;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav-links li a:hover {
            color: var(--primary);
            background: var(--primary-bg);
        }
        .nav-links li a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(212, 41, 43, 0.35);
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: var(--neutral);
            border-radius: 2rem;
            padding: 0.25rem 0.25rem 0.25rem 1rem;
            border: 1px solid transparent;
            transition: var(--transition);
            flex: 1;
            max-width: 280px;
        }
        .nav-search:focus-within {
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(212, 41, 43, 0.1);
        }
        .nav-search input {
            border: none;
            background: transparent;
            padding: 0.45rem 0;
            width: 100%;
            font-size: 0.875rem;
            color: var(--text-body);
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--text-muted);
        }
        .nav-search button {
            background: var(--primary);
            border: none;
            color: #fff;
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .nav-search button:hover {
            background: var(--primary-dark);
            transform: scale(1.05);
        }

        .nav-cta {
            background: var(--primary);
            color: #fff !important;
            padding: 0.55rem 1.4rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 0.875rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
            transition: var(--transition);
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(212, 41, 43, 0.3);
        }
        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(212, 41, 43, 0.4);
            color: #fff !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--secondary);
            cursor: pointer;
            padding: 0.25rem;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #1a1a2e 0%, #2d2d4a 60%, #3d3d6b 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212, 41, 43, 0.15), transparent 70%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 4rem 0 4.5rem;
            text-align: center;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin-bottom: 1.25rem;
            letter-spacing: -1px;
        }
        .hero-content h1 span {
            color: var(--accent-light);
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-actions .btn-primary {
            background: var(--primary);
            color: #fff;
            padding: 0.85rem 2.4rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(212, 41, 43, 0.4);
        }
        .hero-actions .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(212, 41, 43, 0.5);
        }
        .hero-actions .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            padding: 0.85rem 2.4rem;
            border-radius: 2rem;
            font-weight: 600;
            font-size: 1.05rem;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            transition: var(--transition);
            background: transparent;
        }
        .hero-actions .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            padding: 0.4rem 1.2rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-badge i {
            color: var(--accent-light);
        }

        /* ===== Section ===== */
        .section-padding {
            padding: 5rem 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 3.5rem;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .badge-sub {
            display: inline-block;
            background: var(--primary-bg);
            color: var(--primary);
            padding: 0.3rem 1.2rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
        }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }
        .card-item {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            text-align: center;
        }
        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 41, 43, 0.15);
        }
        .card-item .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            margin: 0 auto 1.25rem;
            background: var(--primary-bg);
            color: var(--primary);
            transition: var(--transition);
        }
        .card-item:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .card-item h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.6rem;
        }
        .card-item p {
            color: var(--text-muted);
            font-size: 0.925rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            counter-reset: step;
        }
        .step-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.04);
            text-align: center;
            position: relative;
            transition: var(--transition);
            counter-increment: step;
        }
        .step-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }
        .step-card::before {
            content: counter(step);
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: 0 4px 12px rgba(212, 41, 43, 0.3);
        }
        .step-card .step-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-top: 0.5rem;
            margin-bottom: 1rem;
        }
        .step-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.5rem;
        }
        .step-card p {
            color: var(--text-muted);
            font-size: 0.875rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== Scenario ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.75rem;
        }
        .scenario-card {
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
            background: var(--neutral);
            border-radius: var(--radius);
            padding: 1.75rem;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .scenario-card:hover {
            border-color: rgba(212, 41, 43, 0.15);
            background: #fff;
            box-shadow: var(--shadow-sm);
        }
        .scenario-card .sc-icon {
            width: 48px;
            height: 48px;
            border-radius: 0.85rem;
            background: var(--primary-bg);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .scenario-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.3rem;
        }
        .scenario-card p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: #fff;
            border-radius: 0.85rem;
            border: 1px solid rgba(0, 0, 0, 0.06);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 41, 43, 0.15);
        }
        .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--secondary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 1rem;
        }
        .faq-question i {
            color: var(--primary);
            transition: var(--transition);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.1rem;
            color: var(--text-muted);
            font-size: 0.925rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
            border-radius: var(--radius-2xl);
            padding: 4rem 3rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            position: relative;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.05rem;
            max-width: 550px;
            margin: 0 auto 2rem;
            position: relative;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--accent);
            color: var(--secondary);
            padding: 0.9rem 2.6rem;
            border-radius: 2rem;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
            position: relative;
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.4);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.5);
            color: var(--secondary);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .footer-brand h3 span {
            color: var(--primary);
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.1rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.6rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-col ul li span {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-content h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links,
            .nav-search,
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                padding: 1rem 1.5rem 1.5rem;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid rgba(0, 0, 0, 0.05);
                gap: 0.25rem;
                z-index: 999;
            }
            .nav-links.open li a {
                padding: 0.6rem 1rem;
                border-radius: 0.5rem;
                font-size: 1rem;
            }
            .nav-links.open+.nav-search,
            .nav-links.open~.nav-cta {
                display: flex;
                margin-top: 0.5rem;
            }
            .nav-wrapper {
                flex-wrap: wrap;
                height: auto;
                padding: 0.75rem 0;
            }
            .hero-content h1 {
                font-size: 2rem;
            }
            .hero-content p {
                font-size: 1rem;
            }
            .hero-section {
                min-height: 400px;
            }
            .section-title h2 {
                font-size: 1.7rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-section {
                padding: 3rem 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-outline {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 1rem;
            }
            .hero-content h1 {
                font-size: 1.7rem;
            }
            .section-padding {
                padding: 3rem 0;
            }
            .card-item {
                padding: 1.5rem 1.25rem;
            }
            .step-card {
                padding: 1.5rem 1rem;
            }
            .scenario-card {
                padding: 1.25rem;
                flex-direction: column;
            }
            .nav-logo {
                font-size: 1.25rem;
            }
        }