/* roulang page: index */
:root {
            --primary: #0A1B2D;
            --primary-light: #123454;
            --accent: #C9A86A;
            --accent-light: #E0C79A;
            --accent-dark: #A8874A;
            --bg: #F5F7FA;
            --white: #FFFFFF;
            --text: #1A2330;
            --text-light: #6B7A8D;
            --border: #E4E9EF;
            --radius: 12px;
            --radius-lg: 22px;
            --shadow: 0 8px 30px rgba(10, 27, 45, 0.08);
            --shadow-lg: 0 18px 48px rgba(10, 27, 45, 0.14);
            --transition: all 0.3s ease;
            --container: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .grid-container {
            max-width: var(--container);
            padding-left: 22px;
            padding-right: 22px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 22px;
        }
        .section {
            padding: 90px 0;
        }
        .section-bg-light {
            background: var(--white);
        }
        .section-bg-alt {
            background: var(--bg);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            letter-spacing: 2px;
            font-weight: 600;
            color: var(--accent-dark);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 2px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(201, 168, 106, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 168, 106, 0.46);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.65);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
        }
        .btn-dark:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .site-header {
            background: var(--white);
            box-shadow: 0 2px 14px rgba(10, 27, 45, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }
        .brand .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 19px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            gap: 32px;
            margin-left: 20px;
        }
        .main-nav a {
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
            padding: 29px 0;
            border-bottom: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--accent);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 30px;
            padding: 8px 16px;
            gap: 8px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 128px;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: #A0AAB5;
        }
        .search-box:hover,
        .search-box:focus-within {
            border-color: var(--accent);
            background: var(--white);
            box-shadow: 0 2px 10px rgba(10, 27, 45, 0.06);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 14px;
            padding: 0;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            font-size: 18px;
            color: var(--primary);
            align-items: center;
            justify-content: center;
        }
        .hero {
            background: linear-gradient(135deg, rgba(10, 27, 45, 0.84) 0%, rgba(18, 52, 84, 0.76) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 130px 0 115px;
            color: #fff;
            position: relative;
        }
        .hero-inner {
            max-width: 760px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.14);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 40px;
            padding: 9px 22px;
            font-size: 13px;
            letter-spacing: 1px;
            font-weight: 500;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero h1 {
            font-size: 50px;
            line-height: 1.22;
            font-weight: 800;
            margin: 24px 0 18px;
            letter-spacing: -1px;
        }
        .hero h1 .hero-accent {
            color: var(--accent);
        }
        .hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.86);
            margin-bottom: 34px;
            max-width: 560px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-trust {
            display: flex;
            gap: 30px;
            margin-top: 54px;
            flex-wrap: wrap;
        }
        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.78);
        }
        .hero-trust-item i {
            color: var(--accent);
            font-size: 16px;
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .about-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .about-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }
        .about-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(10, 27, 45, 0.35));
        }
        .about-info h3 {
            font-size: 22px;
            color: var(--primary);
            margin: 20px 0 14px;
        }
        .about-info p {
            color: var(--text-light);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .about-feats {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
            margin-top: 26px;
        }
        .about-feat {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
            transition: var(--transition);
        }
        .about-feat:hover {
            box-shadow: var(--shadow);
            transform: translateY(-3px);
            border-color: var(--accent);
        }
        .about-feat i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 3px;
        }
        .about-feat span {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }
        .card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--accent);
        }
        .entry-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .entry-card .card-body {
            padding: 24px;
        }
        .entry-card .card-tag {
            display: inline-block;
            background: var(--bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }
        .entry-card h3 {
            font-size: 19px;
            line-height: 1.5;
            color: var(--text);
            margin-bottom: 12px;
            font-weight: 700;
        }
        .entry-card h3 a:hover {
            color: var(--accent-dark);
        }
        .entry-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 18px;
        }
        .entry-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .entry-card .card-meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .category-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--white);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--accent);
        }
        .category-card img {
            width: 100%;
            height: 245px;
            object-fit: cover;
        }
        .category-card .card-body {
            padding: 28px;
        }
        .category-card .card-body h3 {
            font-size: 21px;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .category-card .card-body p {
            color: var(--text-light);
            font-size: 14px;
            margin-bottom: 20px;
            line-height: 1.75;
        }
        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 14px;
        }
        .category-card .card-link:hover {
            gap: 12px;
            color: var(--primary);
        }
        .stats-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 168, 106, 0.12);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .stat-item .num {
            font-size: 44px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 8px;
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 40px;
        }
        .process-step {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 26px;
            position: relative;
            transition: var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .process-step .step-num {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 2px;
            margin-bottom: 14px;
        }
        .process-step h3 {
            font-size: 18px;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            cursor: pointer;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 28px 24px;
            color: var(--text-light);
            line-height: 1.8;
            font-size: 15px;
        }
        .cta-section {
            background: linear-gradient(120deg, rgba(10, 27, 45, 0.9), rgba(18, 52, 84, 0.85)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: 90px 0;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .site-footer {
            background: #071524;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 60px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 26px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            background: rgba(201, 168, 106, 0.14);
            color: var(--accent-dark);
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
        }
        .github-corner:focus,
        .btn:focus,
        a:focus,
        input:focus,
        button:focus {
            outline: 3px solid rgba(201, 168, 106, 0.45);
            outline-offset: 2px;
        }

        @media (max-width: 1024px) {
            .main-nav {
                position: fixed;
                top: 78px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 20px 22px;
                gap: 4px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
                display: none;
                margin-left: 0;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 14px 18px;
                border-bottom: none;
                border-radius: 10px;
                border-left: 3px solid transparent;
            }
            .main-nav a:hover,
            .main-nav a.active {
                background: var(--bg);
                border-left-color: var(--accent);
            }
            .menu-toggle {
                display: inline-flex;
            }
            .search-box {
                display: none;
            }
            .header-cta {
                padding: 10px 22px;
                font-size: 14px;
            }
            .hero {
                padding: 100px 0 90px;
            }
            .hero h1 {
                font-size: 38px;
            }
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
            .category-card img {
                height: 220px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 60px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .hero {
                padding: 80px 0 70px;
            }
            .hero h1 {
                font-size: 30px;
            }
            .hero p {
                font-size: 15px;
            }
            .hero-trust {
                gap: 16px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stat-item .num {
                font-size: 32px;
            }
            .about-feats {
                grid-template-columns: 1fr;
            }
            .about-image img {
                height: 280px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions .btn {
                width: 100%;
                max-width: 280px;
            }
            .brand {
                font-size: 18px;
            }
            .header-cta {
                display: none;
            }
            .entry-card img {
                height: 180px;
            }
        }

:root {
            --primary: #0A1B2D;
            --primary-light: #123454;
            --accent: #C9A86A;
            --accent-light: #E0C79A;
            --accent-dark: #A8874A;
            --bg: #F5F7FA;
            --white: #FFFFFF;
            --text: #1A2330;
            --text-light: #6B7A8D;
            --border: #E4E9EF;
            --radius: 12px;
            --radius-lg: 22px;
            --shadow: 0 8px 30px rgba(10, 27, 45, 0.08);
            --shadow-lg: 0 18px 48px rgba(10, 27, 45, 0.14);
            --transition: all 0.3s ease;
            --container: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .grid-container {
            max-width: var(--container);
            padding-left: 22px;
            padding-right: 22px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 22px;
        }
        .section {
            padding: 80px 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 2px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(201, 168, 106, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 168, 106, 0.46);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.65);
            color: #fff;
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }
        .site-header {
            background: var(--white);
            box-shadow: 0 2px 14px rgba(10, 27, 45, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }
        .brand .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 19px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            gap: 32px;
            margin-left: 20px;
        }
        .main-nav a {
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
            padding: 29px 0;
            border-bottom: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--accent);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 30px;
            padding: 8px 16px;
            gap: 8px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 128px;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: #A0AAB5;
        }
        .search-box:hover,
        .search-box:focus-within {
            border-color: var(--accent);
            background: var(--white);
            box-shadow: 0 2px 10px rgba(10, 27, 45, 0.06);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 14px;
            padding: 0;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            font-size: 18px;
            color: var(--primary);
            align-items: center;
            justify-content: center;
        }
        .article-banner {
            background: linear-gradient(120deg, rgba(10, 27, 45, 0.88), rgba(18, 52, 84, 0.78)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            padding: 90px 0 70px;
            color: #fff;
        }
        .article-breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .article-breadcrumb a:hover {
            color: var(--accent);
        }
        .article-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .article-banner h1 {
            font-size: 40px;
            line-height: 1.3;
            font-weight: 800;
            max-width: 820px;
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            gap: 24px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            flex-wrap: wrap;
        }
        .article-meta i {
            color: var(--accent);
            margin-right: 5px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .article-content {
            background: var(--white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            padding: 50px;
            font-size: 16px;
            line-height: 2;
            color: var(--text);
        }
        .article-content h2 {
            font-size: 26px;
            color: var(--primary);
            margin: 36px 0 16px;
        }
        .article-content h3 {
            font-size: 20px;
            color: var(--primary);
            margin: 28px 0 12px;
        }
        .article-content p {
            margin-bottom: 18px;
        }
        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
        }
        .article-content ul,
        .article-content ol {
            margin: 16px 0 20px 24px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found h2 {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .not-found p {
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .related-section {
            margin-top: 60px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--accent);
        }
        .entry-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
        }
        .card-body {
            padding: 24px;
        }
        .card-body .card-tag {
            display: inline-block;
            background: var(--bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .card-body h3 {
            font-size: 17px;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
        }
        .card-body h3 a:hover {
            color: var(--accent-dark);
        }
        .card-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .card-meta {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            gap: 14px;
        }
        .card-meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        .cta-section {
            background: linear-gradient(120deg, rgba(10, 27, 45, 0.9), rgba(18, 52, 84, 0.85)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 80px 0;
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 30px;
        }
        .site-footer {
            background: #071524;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 60px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 26px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .section-title,
        h2 {
            font-weight: 800;
            color: var(--primary);
        }
        .section-desc {
            color: var(--text-light);
            font-size: 16px;
        }
        .btn:focus,
        a:focus,
        input:focus,
        button:focus {
            outline: 3px solid rgba(201, 168, 106, 0.45);
            outline-offset: 2px;
        }

        @media (max-width: 1024px) {
            .main-nav {
                position: fixed;
                top: 78px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 20px 22px;
                gap: 4px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
                display: none;
                margin-left: 0;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 14px 18px;
                border-bottom: none;
                border-radius: 10px;
                border-left: 3px solid transparent;
            }
            .main-nav a:hover,
            .main-nav a.active {
                background: var(--bg);
                border-left-color: var(--accent);
            }
            .menu-toggle {
                display: inline-flex;
            }
            .search-box {
                display: none;
            }
            .header-cta {
                padding: 10px 22px;
                font-size: 14px;
            }
            .article-banner h1 {
                font-size: 32px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 50px 0;
            }
            .article-banner {
                padding: 60px 0 50px;
            }
            .article-banner h1 {
                font-size: 25px;
            }
            .article-content {
                padding: 28px 20px;
                font-size: 15px;
                border-radius: var(--radius);
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .brand {
                font-size: 18px;
            }
            .header-cta {
                display: none;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
        }

:root {
            --primary: #0A1B2D;
            --primary-light: #123454;
            --accent: #C9A86A;
            --accent-light: #E0C79A;
            --accent-dark: #A8874A;
            --bg: #F5F7FA;
            --white: #FFFFFF;
            --text: #1A2330;
            --text-light: #6B7A8D;
            --border: #E4E9EF;
            --radius: 12px;
            --radius-lg: 22px;
            --shadow: 0 8px 30px rgba(10, 27, 45, 0.08);
            --shadow-lg: 0 18px 48px rgba(10, 27, 45, 0.14);
            --transition: all 0.3s ease;
            --container: 1200px;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .grid-container {
            max-width: var(--container);
            padding-left: 22px;
            padding-right: 22px;
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 22px;
        }
        .section {
            padding: 80px 0;
        }
        .section-bg-light {
            background: var(--white);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            letter-spacing: 2px;
            font-weight: 600;
            color: var(--accent-dark);
            margin-bottom: 14px;
        }
        .section-title {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 2px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(201, 168, 106, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(201, 168, 106, 0.46);
            color: var(--primary);
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
        }
        .btn-dark:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .site-header {
            background: var(--white);
            box-shadow: 0 2px 14px rgba(10, 27, 45, 0.06);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 78px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 22px;
            font-weight: 800;
            color: var(--primary);
            white-space: nowrap;
        }
        .brand .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 19px;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            gap: 32px;
            margin-left: 20px;
        }
        .main-nav a {
            color: var(--text);
            font-size: 15px;
            font-weight: 500;
            padding: 29px 0;
            border-bottom: 3px solid transparent;
            text-decoration: none;
            white-space: nowrap;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--accent);
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border-radius: 30px;
            padding: 8px 16px;
            gap: 8px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 128px;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: #A0AAB5;
        }
        .search-box:hover,
        .search-box:focus-within {
            border-color: var(--accent);
            background: var(--white);
            box-shadow: 0 2px 10px rgba(10, 27, 45, 0.06);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 14px;
            padding: 0;
        }
        .menu-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            width: 40px;
            height: 40px;
            border-radius: 10px;
            font-size: 18px;
            color: var(--primary);
            align-items: center;
            justify-content: center;
        }
        .page-banner {
            background: linear-gradient(120deg, rgba(10, 27, 45, 0.88), rgba(18, 52, 84, 0.75)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 100px 0 80px;
            color: #fff;
        }
        .page-banner .breadcrumb {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--accent);
        }
        .page-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
            margin: 0 6px;
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .page-banner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 620px;
        }
        .card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: var(--accent);
        }
        .activity-card img {
            width: 100%;
            height: 210px;
            object-fit: cover;
        }
        .card-body {
            padding: 25px;
        }
        .card-body .card-tag {
            display: inline-block;
            background: var(--bg);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .card-body h3 {
            font-size: 19px;
            line-height: 1.5;
            margin-bottom: 10px;
            color: var(--text);
        }
        .card-body h3 a:hover {
            color: var(--accent-dark);
        }
        .card-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-meta {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
        }
        .card-meta i {
            color: var(--accent);
            margin-right: 4px;
        }
        .grid-card {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .side-flow {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .side-flow .flow-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .side-flow .flow-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .flow-list {
            list-style: none;
        }
        .flow-list li {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border);
        }
        .flow-list li:last-child {
            border-bottom: none;
        }
        .flow-list .icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 18px;
        }
        .flow-list h3 {
            font-size: 17px;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .flow-list p {
            font-size: 14px;
            color: var(--text-light);
        }
        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
        }
        .faq-item summary {
            cursor: pointer;
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            list-style: none;
            display: flex;
            justify-content: space-between;
            gap: 14px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--accent);
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
        }
        .cta-section {
            background: linear-gradient(120deg, rgba(10, 27, 45, 0.9), rgba(18, 52, 84, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 80px 0;
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 520px;
            margin: 0 auto 30px;
        }
        .site-footer {
            background: #071524;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 24px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 60px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            padding-top: 26px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .btn:focus,
        a:focus,
        input:focus,
        button:focus {
            outline: 3px solid rgba(201, 168, 106, 0.45);
            outline-offset: 2px;
        }

        @media (max-width: 1024px) {
            .main-nav {
                position: fixed;
                top: 78px;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 20px 22px;
                gap: 4px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
                display: none;
                margin-left: 0;
                z-index: 99;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 14px 18px;
                border-bottom: none;
                border-radius: 10px;
                border-left: 3px solid transparent;
            }
            .main-nav a:hover,
            .main-nav a.active {
                background: var(--bg);
                border-left-color: var(--accent);
            }
            .menu-toggle {
                display: inline-flex;
            }
            .search-box {
                display: none;
            }
            .header-cta {
                padding: 10px 22px;
                font-size: 14px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .grid-card {
                grid-template-columns: repeat(2, 1fr);
            }
            .side-flow {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 640px) {
            .section {
                padding: 55px 0;
            }
            .page-banner {
                padding: 60px 0 50px;
            }
            .page-banner h1 {
                font-size: 26px;
            }
            .grid-card {
                grid-template-columns: 1fr;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .brand {
                font-size: 18px;
            }
            .header-cta {
                display: none;
            }
            .cta-section {
                padding: 50px 0;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .side-flow .flow-image img {
                height: 220px;
            }
        }

/* roulang page: category1 */
:root {
        --primary: #0a5c8a;
        --primary-dark: #063f61;
        --primary-light: #e8f4fa;
        --accent: #d4a24e;
        --accent-dark: #b8893a;
        --accent-light: #fdf6e8;
        --bg: #f7f9fc;
        --white: #ffffff;
        --text: #172b3a;
        --text-light: #5e7285;
        --border: #e3eaf0;
        --radius: 12px;
        --radius-lg: 22px;
        --shadow: 0 4px 20px rgba(10, 92, 138, 0.08);
        --shadow-lg: 0 14px 44px rgba(10, 92, 138, 0.14);
        --transition: all 0.32s ease;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        line-height: 1.75;
        color: var(--text);
        background: var(--bg);
        -webkit-font-smoothing: antialiased;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: var(--transition);
    }
    img {
        max-width: 100%;
        display: block;
    }
    button,
    input {
        font-family: inherit;
        border: none;
        outline: none;
    }
    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .section {
        padding: 96px 0;
    }
    .section-alt {
        background: var(--white);
    }
    .section-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--primary-light);
        color: var(--primary);
        font-size: 14px;
        font-weight: 600;
        padding: 8px 18px;
        border-radius: 40px;
        letter-spacing: 0.5px;
        margin-bottom: 18px;
    }
    .section-header {
        text-align: center;
        max-width: 760px;
        margin: 0 auto 56px;
    }
    .section-header h2 {
        font-size: 40px;
        font-weight: 800;
        line-height: 1.3;
        margin-bottom: 14px;
        color: var(--text);
        letter-spacing: -0.5px;
    }
    .section-header p {
        font-size: 17px;
        color: var(--text-light);
        line-height: 1.7;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 14px 32px;
        border-radius: 50px;
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        border: 2px solid transparent;
    }
    .btn-primary {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        color: #fff;
        box-shadow: 0 6px 22px rgba(10, 92, 138, 0.3);
    }
    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 32px rgba(10, 92, 138, 0.38);
    }
    .btn-accent {
        background: linear-gradient(135deg, var(--accent), var(--accent-dark));
        color: #fff;
        box-shadow: 0 6px 22px rgba(212, 162, 78, 0.28);
    }
    .btn-accent:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 32px rgba(212, 162, 78, 0.36);
    }
    .btn-outline {
        border-color: var(--primary);
        color: var(--primary);
        background: transparent;
    }
    .btn-outline:hover {
        background: var(--primary);
        color: #fff;
        transform: translateY(-2px);
    }
    .btn-white {
        background: #fff;
        color: var(--primary-dark);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    }
    .btn-white:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
    }

    /* ========== HEADER ========== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        box-shadow: 0 2px 16px rgba(10, 92, 138, 0.06);
    }
    .header-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 78px;
        gap: 28px;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }
    .brand-icon {
        width: 42px;
        height: 42px;
        min-width: 42px;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-size: 18px;
        box-shadow: 0 4px 12px rgba(10, 92, 138, 0.26);
    }
    .brand span:last-child {
        font-size: 20px;
        font-weight: 800;
        letter-spacing: 0.3px;
        white-space: nowrap;
        color: var(--text);
    }
    .main-nav {
        display: flex;
        align-items: center;
        gap: 36px;
        margin: 0 auto;
    }
    .main-nav a {
        font-size: 16px;
        font-weight: 500;
        color: var(--text-light);
        padding: 8px 2px;
        position: relative;
        white-space: nowrap;
    }
    .main-nav a::after {
        content: "";
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 3px;
        border-radius: 4px;
        background: var(--accent);
        transition: width 0.3s ease;
    }
    .main-nav a:hover {
        color: var(--primary);
    }
    .main-nav a:hover::after {
        width: 100%;
    }
    .main-nav a.active {
        color: var(--primary);
        font-weight: 700;
    }
    .main-nav a.active::after {
        width: 100%;
        background: var(--accent);
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 16px;
        flex-shrink: 0;
    }
    .search-box {
        display: flex;
        align-items: center;
        background: #f1f5f9;
        border-radius: 40px;
        border: 1px solid var(--border);
        overflow: hidden;
        transition: var(--transition);
    }
    .search-box:focus-within {
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(10, 92, 138, 0.12);
        background: #fff;
    }
    .search-box input {
        border: none;
        background: transparent;
        padding: 10px 6px 10px 16px;
        font-size: 14px;
        width: 150px;
        color: var(--text);
    }
    .search-box input::placeholder {
        color: #a0b0bf;
    }
    .search-box button {
        background: transparent;
        padding: 10px 14px;
        color: var(--text-light);
        cursor: pointer;
    }
    .search-box button:hover {
        color: var(--primary);
    }
    .nav-toggle {
        display: none;
        background: var(--primary-light);
        width: 44px;
        height: 44px;
        border-radius: 12px;
        color: var(--primary);
        font-size: 18px;
        cursor: pointer;
        align-items: center;
        justify-content: center;
    }

    /* ========== PAGE HERO ========== */
    .page-hero {
        position: relative;
        background: linear-gradient(135deg, rgba(6, 63, 97, 0.92), rgba(10, 92, 138, 0.82)), url('/assets/images/backpic/back-1.png') center/cover;
        padding: 140px 0 120px;
        color: #fff;
        text-align: center;
        overflow: hidden;
    }
    .page-hero::before {
        content: "";
        position: absolute;
        top: -60%;
        right: -20%;
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, rgba(212, 162, 78, 0.35), transparent 65%);
        border-radius: 50%;
        pointer-events: none;
    }
    .page-hero .container {
        position: relative;
        z-index: 2;
    }
    .page-hero h1 {
        font-size: 52px;
        font-weight: 800;
        letter-spacing: -1px;
        margin-bottom: 18px;
        line-height: 1.2;
    }
    .page-hero p {
        font-size: 19px;
        max-width: 680px;
        margin: 0 auto 36px;
        opacity: 0.9;
        line-height: 1.7;
    }
    .hero-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.16);
        border: 1px solid rgba(255, 255, 255, 0.25);
        padding: 10px 24px;
        border-radius: 40px;
        font-size: 15px;
        font-weight: 500;
        margin-bottom: 28px;
        backdrop-filter: blur(6px);
    }

    /* ========== CATEGORY TAGS ========== */
    .category-tags-section {
        padding: 70px 0 20px;
    }
    .category-tags {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 14px;
    }
    .tag-chip {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: 40px;
        padding: 12px 28px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-light);
        cursor: pointer;
        transition: var(--transition);
        box-shadow: 0 2px 8px rgba(10, 92, 138, 0.04);
    }
    .tag-chip:hover {
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-2px);
        box-shadow: var(--shadow);
    }
    .tag-chip.active {
        background: var(--primary);
        color: #fff;
        border-color: var(--primary);
        box-shadow: 0 6px 20px rgba(10, 92, 138, 0.28);
    }
    .tag-chip i {
        margin-right: 6px;
        font-size: 13px;
    }

    /* ========== ACTIVITY CARDS ========== */
    .activity-section {
        padding: 72px 0 90px;
    }
    .activity-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
        margin-top: 20px;
    }
    .activity-card {
        background: var(--white);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .activity-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-lg);
        border-color: #b8d4e8;
    }
    .activity-card-img {
        position: relative;
        height: 220px;
        overflow: hidden;
    }
    .activity-card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.55s ease;
    }
    .activity-card:hover .activity-card-img img {
        transform: scale(1.07);
    }
    .activity-card-img::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(6, 35, 55, 0.45), transparent 60%);
        pointer-events: none;
    }
    .date-badge {
        position: absolute;
        top: 16px;
        left: 16px;
        background: rgba(10, 92, 138, 0.92);
        color: #fff;
        padding: 6px 16px;
        border-radius: 30px;
        font-size: 13px;
        font-weight: 700;
        z-index: 2;
        backdrop-filter: blur(4px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }
    .price-badge {
        position: absolute;
        bottom: 16px;
        left: 16px;
        background: rgba(255, 255, 255, 0.92);
        color: var(--primary-dark);
        padding: 6px 16px;
        border-radius: 30px;
        font-size: 14px;
        font-weight: 700;
        z-index: 2;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }
    .activity-card-body {
        padding: 24px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .activity-card-tag {
        display: inline-flex;
        align-self: flex-start;
        align-items: center;
        gap: 6px;
        background: var(--accent-light);
        color: var(--accent-dark);
        font-size: 13px;
        font-weight: 600;
        padding: 5px 14px;
        border-radius: 30px;
        margin-bottom: 14px;
    }
    .activity-card-body h3 {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 10px;
        line-height: 1.4;
        color: var(--text);
    }
    .activity-card-body p {
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.6;
        margin-bottom: 18px;
        flex: 1;
    }
    .activity-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        font-size: 13px;
        color: var(--text-light);
        margin-bottom: 20px;
        padding-top: 14px;
        border-top: 1px solid var(--border);
    }
    .activity-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .activity-meta i {
        color: var(--primary);
        font-size: 14px;
    }
    .activity-card-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        background: var(--primary);
        color: #fff;
        padding: 12px 22px;
        border-radius: 40px;
        font-size: 14px;
        font-weight: 600;
        transition: var(--transition);
        box-shadow: 0 4px 16px rgba(10, 92, 138, 0.2);
    }
    .activity-card-btn:hover {
        background: var(--primary-dark);
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(10, 92, 138, 0.3);
    }

    /* ========== TIMELINE ========== */
    .timeline-section {
        background: linear-gradient(180deg, var(--bg), var(--white));
        padding: 90px 0;
    }
    .timeline {
        position: relative;
        max-width: 880px;
        margin: 0 auto;
        padding: 20px 0;
    }
    .timeline::before {
        content: "";
        position: absolute;
        left: 100px;
        top: 0;
        bottom: 0;
        width: 3px;
        background: linear-gradient(180deg, var(--primary), var(--accent));
        border-radius: 4px;
    }
    .timeline-item {
        position: relative;
        display: flex;
        align-items: flex-start;
        gap: 36px;
        margin-bottom: 48px;
        padding-left: 0;
    }
    .timeline-item:last-child {
        margin-bottom: 0;
    }
    .timeline-date {
        width: 100px;
        min-width: 100px;
        background: var(--white);
        border: 2px solid var(--primary);
        border-radius: var(--radius);
        text-align: center;
        padding: 14px 10px;
        box-shadow: var(--shadow);
        position: relative;
        z-index: 2;
    }
    .timeline-date .day {
        display: block;
        font-size: 34px;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.1;
    }
    .timeline-date .month {
        display: block;
        font-size: 14px;
        color: var(--text-light);
        font-weight: 500;
        margin-top: 4px;
    }
    .timeline-content {
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 24px 28px;
        flex: 1;
        box-shadow: var(--shadow);
        transition: var(--transition);
    }
    .timeline-content:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-2px);
    }
    .timeline-tag {
        display: inline-flex;
        align-items: center;
        background: var(--primary-light);
        color: var(--primary);
        font-size: 12px;
        font-weight: 700;
        padding: 4px 14px;
        border-radius: 30px;
        margin-bottom: 10px;
        letter-spacing: 0.4px;
    }
    .timeline-content h3 {
        font-size: 19px;
        font-weight: 700;
        margin-bottom: 6px;
    }
    .timeline-content p {
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.6;
    }
    .timeline-meta {
        display: flex;
        gap: 18px;
        margin-top: 14px;
        font-size: 13px;
        color: var(--text-light);
    }
    .timeline-meta span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .timeline-meta i {
        color: var(--accent);
    }
    .timeline-cta {
        align-self: center;
        margin-left: 8px;
        flex-shrink: 0;
    }

    /* ========== STATS ========== */
    .stats-section {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        padding: 80px 0;
        color: #fff;
        position: relative;
        overflow: hidden;
    }
    .stats-section::before {
        content: "";
        position: absolute;
        top: -100px;
        left: -100px;
        width: 400px;
        height: 400px;
        border-radius: 50%;
        border: 60px solid rgba(255, 255, 255, 0.04);
        pointer-events: none;
    }
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
        position: relative;
        z-index: 2;
    }
    .stat-item {
        text-align: center;
        padding: 24px 16px;
        border-radius: var(--radius-lg);
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.14);
        backdrop-filter: blur(6px);
        transition: var(--transition);
    }
    .stat-item:hover {
        background: rgba(255, 255, 255, 0.14);
        transform: translateY(-4px);
    }
    .stat-number {
        font-size: 44px;
        font-weight: 800;
        line-height: 1;
        margin-bottom: 8px;
        background: linear-gradient(135deg, #fff, #e8c88a);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .stat-label {
        font-size: 15px;
        opacity: 0.85;
        letter-spacing: 0.5px;
    }

    /* ========== FEATURED ========== */
    .featured-section {
        padding: 90px 0;
    }
    .featured-card {
        display: flex;
        background: var(--white);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        margin-bottom: 32px;
        transition: var(--transition);
    }
    .featured-card:hover {
        box-shadow: var(--shadow-lg);
    }
    .featured-card-img {
        width: 46%;
        min-height: 320px;
        overflow: hidden;
        position: relative;
    }
    .featured-card-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .featured-card:hover .featured-card-img img {
        transform: scale(1.05);
    }
    .featured-card-body {
        flex: 1;
        padding: 40px 44px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .featured-card-body .section-tag {
        margin-bottom: 14px;
    }
    .featured-card-body h3 {
        font-size: 28px;
        font-weight: 800;
        margin-bottom: 14px;
        line-height: 1.3;
    }
    .featured-card-body p {
        font-size: 15px;
        color: var(--text-light);
        margin-bottom: 22px;
        line-height: 1.7;
    }
    .featured-list {
        list-style: none;
        margin: 0 0 24px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .featured-list li {
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text);
    }
    .featured-list li i {
        color: var(--accent);
        font-size: 13px;
    }
    .featured-actions {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    /* ========== FAQ ========== */
    .faq-section {
        padding: 90px 0;
        background: var(--white);
    }
    .faq-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        max-width: 980px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 28px 30px;
        transition: var(--transition);
    }
    .faq-item:hover {
        border-color: var(--primary);
        box-shadow: var(--shadow);
        background: var(--white);
    }
    .faq-item h3 {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 10px;
        display: flex;
        align-items: center;
        gap: 10px;
        color: var(--text);
    }
    .faq-item h3 i {
        color: var(--accent);
        font-size: 15px;
        width: 24px;
        text-align: center;
        flex-shrink: 0;
    }
    .faq-item p {
        font-size: 14px;
        color: var(--text-light);
        line-height: 1.65;
        margin: 0;
        padding-left: 34px;
    }

    /* ========== CTA ========== */
    .cta-section {
        padding: 90px 0;
        background: linear-gradient(135deg, rgba(6, 63, 97, 0.94), rgba(10, 92, 138, 0.88)), url('/assets/images/backpic/back-2.png') center/cover;
        color: #fff;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: "";
        position: absolute;
        bottom: -80px;
        right: -80px;
        width: 320px;
        height: 320px;
        border-radius: 50%;
        background: rgba(212, 162, 78, 0.22);
        filter: blur(40px);
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
    }
    .cta-section h2 {
        font-size: 38px;
        font-weight: 800;
        margin-bottom: 16px;
        line-height: 1.3;
    }
    .cta-section p {
        font-size: 17px;
        opacity: 0.9;
        max-width: 600px;
        margin: 0 auto 34px;
        line-height: 1.7;
    }
    .cta-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }

    /* ========== FOOTER ========== */
    .site-footer {
        background: #0b1a26;
        color: #9fb3c3;
        padding: 70px 0 30px;
        font-size: 14px;
    }
    .site-footer .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 24px;
    }
    .footer-top {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr;
        gap: 50px;
        padding-bottom: 50px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-brand .brand {
        color: #fff;
        margin-bottom: 18px;
    }
    .footer-brand p {
        line-height: 1.7;
        max-width: 360px;
    }
    .footer-title {
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 18px;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    .footer-links a {
        color: #9fb3c3;
        transition: var(--transition);
    }
    .footer-links a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .footer-bottom {
        text-align: center;
        padding-top: 34px;
        font-size: 13px;
        color: rgba(255, 255, 255, 0.45);
    }
    .footer-bottom a {
        color: rgba(255, 255, 255, 0.55);
    }
    .footer-bottom a:hover {
        color: var(--accent);
    }

    /* ========== RESPONSIVE ========== */
    @media (max-width: 1024px) {
        .search-box input {
            width: 100px;
        }
        .main-nav {
            gap: 24px;
        }
        .activity-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .featured-card {
            flex-direction: column;
        }
        .featured-card-img {
            width: 100%;
            min-height: 240px;
        }
    }
    @media (max-width: 768px) {
        .section {
            padding: 64px 0;
        }
        .section-header h2 {
            font-size: 30px;
        }
        .page-hero h1 {
            font-size: 36px;
        }
        .page-hero p {
            font-size: 16px;
        }
        .header-row {
            height: 68px;
            gap: 12px;
        }
        .main-nav {
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: #fff;
            flex-direction: column;
            align-items: flex-start;
            padding: 24px 28px;
            gap: 18px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
            border-bottom: 1px solid var(--border);
            transform: translateY(-120%);
            transition: transform 0.36s ease;
            z-index: 99;
            margin: 0;
        }
        .main-nav.open {
            transform: translateY(0);
        }
        .main-nav a {
            font-size: 17px;
        }
        .nav-toggle {
            display: inline-flex;
        }
        .search-box {
            display: none;
        }
        .header-actions .btn-primary {
            padding: 10px 20px;
            font-size: 13px;
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .stat-number {
            font-size: 34px;
        }
        .faq-grid {
            grid-template-columns: 1fr;
        }
        .timeline::before {
            left: 30px;
        }
        .timeline-item {
            padding-left: 70px;
        }
        .timeline-date {
            position: absolute;
            left: 0;
            top: 0;
            width: 60px;
            min-width: 60px;
            padding: 8px 6px;
        }
        .timeline-date .day {
            font-size: 24px;
        }
        .timeline-cta {
            margin-left: 0;
            margin-top: 12px;
        }
        .timeline-content {
            padding: 20px;
        }
        .footer-top {
            grid-template-columns: 1fr;
            gap: 36px;
        }
        .featured-list {
            grid-template-columns: 1fr;
        }
    }
    @media (max-width: 520px) {
        .container {
            padding: 0 18px;
        }
        .activity-grid {
            grid-template-columns: 1fr;
        }
        .brand span:last-child {
            font-size: 17px;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            min-width: 36px;
            font-size: 15px;
        }
        .hero-actions .btn,
        .cta-actions .btn {
            width: 100%;
        }
        .cta-section h2 {
            font-size: 28px;
        }
        .page-hero {
            padding: 100px 0 80px;
        }
        .page-hero h1 {
            font-size: 30px;
        }
        .activity-meta {
            flex-direction: column;
            gap: 8px;
        }
        .activity-card-body {
            padding: 20px;
        }
        .timeline-item {
            padding-left: 0;
            flex-direction: column;
        }
        .timeline::before {
            left: 28px;
            display: none;
        }
        .timeline-date {
            position: static;
            width: auto;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 10px 18px;
            margin-bottom: -12px;
        }
        .timeline-date .day {
            font-size: 22px;
        }
        .timeline-date .month {
            font-size: 13px;
            margin: 0;
        }
        .header-actions .btn-primary {
            display: none;
        }
        .featured-card-body {
            padding: 28px 24px;
        }
    }

/* roulang page: article */
:root {
  --primary: #0a5c8a;
  --primary-dark: #083b5c;
  --accent: #f0a500;
  --accent-dark: #c88a00;
  --bg: #ffffff;
  --bg-light: #f4f8fb;
  --text: #1e2933;
  --text-muted: #5a6b7b;
  --border: #dbe4ec;
  --radius: 16px;
  --radius-sm: 10px;
  --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 32px rgba(0, 0, 0, 0.12);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--text); background: var(--bg); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 24px; border-radius: 999px; font-weight: 600; border: none; cursor: pointer; transition: var(--transition); font-size: 15px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(10, 92, 138, 0.3); }
.btn-primary a { color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(10, 92, 138, 0.35); }
.btn-ghost { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-ghost:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.95); backdrop-filter: blur(10px); box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; flex-wrap: nowrap; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; color: var(--primary); white-space: nowrap; }
.brand-icon { width: 38px; height: 38px; background: var(--primary); color: #fff; border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; box-shadow: 0 4px 12px rgba(10, 92, 138, 0.25); transition: var(--transition); }
.brand:hover .brand-icon { transform: rotate(-8deg) scale(1.05); }
.main-nav { display: flex; gap: 8px; align-items: center; }
.main-nav a { position: relative; padding: 8px 16px; border-radius: 999px; font-weight: 500; font-size: 15px; color: var(--text); transition: var(--transition); }
.main-nav a:hover { background: var(--bg-light); color: var(--primary); }
.main-nav a.active { background: var(--primary); color: #fff; font-weight: 600; box-shadow: 0 4px 12px rgba(10, 92, 138, 0.2); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.header-search { display: flex; align-items: center; background: var(--bg-light); border-radius: 999px; padding: 8px 16px; border: 1px solid var(--border); width: 200px; transition: var(--transition); }
.header-search input { background: transparent; border: none; outline: none; width: 100%; font-size: 14px; color: var(--text); }
.header-search input::placeholder { color: var(--text-muted); }
.header-search i { color: var(--text-muted); margin-right: 6px; }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 24px; color: var(--text); cursor: pointer; }

/* Hero */
.page-hero { background: linear-gradient(135deg, #f0f6fb 0%, #ffffff 50%, #f7f9fc 100%); padding: 80px 0 60px; position: relative; overflow: hidden; }
.page-hero:before { content: ''; position: absolute; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(10,92,138,0.15), transparent 60%); top: -180px; right: -100px; }
.page-hero .container { position: relative; z-index: 1; max-width: 900px; text-align: center; }
.page-hero h1 { font-size: 40px; font-weight: 800; color: var(--primary-dark); line-height: 1.3; margin-bottom: 16px; letter-spacing: -0.5px; }
.page-hero p { font-size: 18px; color: var(--text-muted); max-width: 680px; margin: 0 auto; }

/* Breadcrumb */
.breadcrumb { padding: 20px 0; background: var(--bg-light); border-bottom: 1px solid var(--border); }
.breadcrumb .container { display: flex; gap: 8px; flex-wrap: wrap; font-size: 14px; color: var(--text-muted); }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 4px; color: var(--border); }

/* Article body */
.article-wrap { padding: 60px 0 80px; background: var(--bg); }
.article-layout { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 3fr); gap: 48px; align-items: start; }
.article-main { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-md); border: 1px solid var(--border); overflow: hidden; }
.article-content { padding: 48px; }
.article-title { font-size: 32px; font-weight: 800; line-height: 1.4; color: var(--primary-dark); margin-bottom: 16px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 14px; padding-bottom: 20px; margin-bottom: 28px; border-bottom: 1px solid var(--border); color: var(--text-muted); font-size: 14px; }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta i { color: var(--accent); }
.article-text { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-text h2 { font-size: 22px; color: var(--primary-dark); margin: 30px 0 12px; padding-left: 14px; border-left: 4px solid var(--accent); }
.article-text h3 { font-size: 18px; color: var(--primary-dark); margin: 24px 0 10px; }
.article-text p { margin-bottom: 16px; }
.article-text .highlight-box { background: var(--bg-light); border-radius: var(--radius-sm); padding: 24px; margin: 24px 0; border-left: 4px solid var(--primary); }
.article-text .highlight-box h3 { margin-top: 0; }
.article-text img { border-radius: var(--radius-sm); margin: 16px 0; }
.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--border); }
.article-tags a { background: var(--bg-light); color: var(--primary); font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px; transition: var(--transition); }
.article-tags a:hover { background: var(--primary); color: #fff; }
.article-footer-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); font-size: 14px; flex-wrap: wrap; }
.article-footer-nav a { color: var(--primary); font-weight: 600; transition: var(--transition); }
.article-footer-nav a:hover { color: var(--accent); }
.not-found { text-align: center; padding: 80px 48px; }
.not-found h2 { font-size: 28px; color: var(--primary-dark); margin-bottom: 12px; }
.not-found p { color: var(--text-muted); margin-bottom: 24px; }

/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 28px; position: sticky; top: 84px; }
.sidebar-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); }
.sidebar-card .sidebar-title { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); display: inline-block; }
.sidebar-list { display: flex; flex-direction: column; gap: 12px; font-size: 14px; }
.sidebar-list li { padding: 8px 0; border-bottom: 1px dashed var(--border); }
.sidebar-list li:last-child { border: none; }
.sidebar-list a { color: var(--text); transition: var(--transition); display: flex; gap: 8px; align-items: flex-start; }
.sidebar-list a:hover { color: var(--primary); padding-left: 6px; }
.sidebar-cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: var(--radius); padding: 32px; color: #fff; text-align: center; }
.sidebar-cta h4 { font-size: 20px; margin-bottom: 10px; font-weight: 700; }
.sidebar-cta p { font-size: 14px; opacity: 0.9; margin-bottom: 20px; }
.sidebar-cta .btn { background: var(--accent); color: #fff; }
.sidebar-cta .btn:hover { background: var(--accent-dark); transform: translateY(-2px); }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); padding: 80px 0; color: #fff; text-align: center; }
.cta-section h2 { font-size: 36px; font-weight: 800; margin-bottom: 20px; }
.cta-section p { font-size: 18px; max-width: 640px; margin: 0 auto 32px; opacity: 0.9; }
.cta-section .btn { background: var(--accent); color: #fff; }
.cta-section .btn:hover { background: var(--accent-dark); transform: translateY(-2px); }

/* Footer */
.site-footer { background: #102033; color: #9aa7b5; padding: 60px 0 24px; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .brand { color: #fff; font-size: 20px; margin-bottom: 16px; }
.footer-brand .brand-icon { background: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.9; }
.footer-title { font-size: 16px; color: #fff; font-weight: 600; margin-bottom: 18px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; transition: var(--transition); }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-bottom { padding-top: 24px; text-align: center; font-size: 13px; color: #6b7a88; }
.footer-bottom a { color: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
  .header-search { width: 130px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { flex-direction: row; flex-wrap: wrap; }
  .sidebar-card { flex: 1; min-width: 240px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .header-inner { height: auto; padding: 14px 0; flex-wrap: wrap; gap: 12px; }
  .main-nav { display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; gap: 4px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 16px; border-radius: 8px; }
  .header-cta { margin-left: auto; }
  .mobile-menu-btn { display: block; }
  .header-search { display: none; }
  .page-hero { padding: 60px 0 40px; }
  .page-hero h1 { font-size: 30px; }
  .article-content { padding: 32px; }
  .article-title { font-size: 24px; }
  .footer-top { grid-template-columns: 1fr; }
  .cta-section h2 { font-size: 28px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-cta .btn { padding: 10px 16px; font-size: 13px; }
  .article-content { padding: 24px; }
  .article-title { font-size: 20px; }
  .article-layout { gap: 24px; }
  .sidebar-card { min-width: 100%; }
  .footer-top { gap: 32px; }
}