/* roulang page: index */
:root {
            --primary: #0f1b3d;
            --primary-light: #1a2d5c;
            --gold: #c9a84c;
            --gold-light: #e8d08a;
            --accent: #f0c040;
            --bg: #f5f6fa;
            --bg-white: #ffffff;
            --text: #1a1a2e;
            --text-light: #6b7280;
            --border: #e5e7eb;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 24px;
            --shadow: 0 4px 20px rgba(0,0,0,0.08);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.14);
            --shadow-nav: 0 2px 20px rgba(0,0,0,0.06);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* Header & Nav */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
            transition: var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
        }

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

        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-list a {
            padding: 8px 20px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }

        .nav-list a:hover {
            background: rgba(201, 168, 76, 0.12);
            color: var(--gold);
        }

        .nav-list a.active {
            background: var(--primary);
            color: #fff;
        }

        .nav-list a.active:hover {
            background: var(--primary-light);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--gold), var(--accent)) !important;
            color: #fff !important;
            padding: 10px 28px !important;
            border-radius: 40px !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 14px rgba(201, 168, 76, 0.35);
            transition: var(--transition);
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 168, 76, 0.45) !important;
            background: linear-gradient(135deg, var(--accent), var(--gold)) !important;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            z-index: 1001;
        }

        .hamburger span {
            width: 28px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: #fff;
                flex-direction: column;
                padding: 100px 30px 40px;
                gap: 12px;
                box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
                transition: var(--transition);
                overflow-y: auto;
            }

            .nav-list.open {
                right: 0;
            }

            .nav-list a {
                width: 100%;
                padding: 14px 20px;
                font-size: 17px;
                border-radius: 10px;
            }

            .nav-list a.active {
                background: var(--primary);
                color: #fff;
            }

            .nav-cta {
                text-align: center;
                margin-top: 8px;
            }

            .header .container {
                height: 64px;
            }

            .logo {
                font-size: 20px;
            }

            .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
        }

        /* Hero */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(135deg, #0f1b3d 0%, #1a2d5c 50%, #0f1b3d 100%);
            position: relative;
            overflow: hidden;
            min-height: 600px;
            display: flex;
            align-items: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg), transparent);
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-content h1 {
            font-size: clamp(36px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero-content h1 span {
            background: linear-gradient(135deg, var(--gold), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-content p {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            color: #0f1b3d;
            font-weight: 700;
            font-size: 16px;
            border-radius: 40px;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(201, 168, 76, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(201, 168, 76, 0.5);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            border-radius: 40px;
            transition: var(--transition);
            background: rgba(255, 255, 255, 0.05);
        }

        .btn-outline:hover {
            border-color: var(--gold);
            background: rgba(201, 168, 76, 0.1);
            color: var(--gold);
        }

        .hero-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-image img {
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            width: 100%;
            max-width: 520px;
            height: auto;
            aspect-ratio: 16/10;
            object-fit: cover;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }

        .hero-image img:hover {
            transform: scale(1.02);
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
        }

        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
            }

            .hero-content p {
                margin-left: auto;
                margin-right: auto;
            }

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

            .hero-image img {
                max-width: 480px;
            }

            .hero {
                padding: 120px 0 60px;
                min-height: auto;
            }
        }

        @media (max-width: 768px) {
            .hero {
                padding: 100px 0 50px;
            }

            .hero-content h1 {
                font-size: 30px;
            }

            .hero-content p {
                font-size: 16px;
            }

            .btn-primary,
            .btn-outline {
                padding: 14px 28px;
                font-size: 15px;
            }

            .hero-image img {
                max-width: 100%;
            }
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-light);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .section-header .subtitle {
            display: inline-block;
            padding: 6px 18px;
            background: rgba(201, 168, 76, 0.15);
            color: var(--gold);
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .section-header {
                margin-bottom: 36px;
            }
        }

        /* Features */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            text-align: center;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold-light);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(201, 168, 76, 0.12), rgba(240, 192, 64, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--gold);
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--gold), var(--accent));
            color: #fff;
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

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

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

            .feature-card {
                padding: 28px 20px;
            }
        }

        /* Categories */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--gold-light);
        }

        .category-card .cat-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }

        .category-card:hover .cat-img {
            transform: scale(1.03);
        }

        .category-card .cat-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card .cat-body h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .category-card .cat-body p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }

        .category-card .cat-body .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--gold);
            font-weight: 600;
            font-size: 15px;
        }

        .category-card .cat-body .cat-link i {
            transition: var(--transition);
        }

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

        @media (max-width: 768px) {
            .categories-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .category-card .cat-img {
                height: 160px;
            }

            .category-card .cat-body {
                padding: 18px 20px;
            }
        }

        /* News / CMS List */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }

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

        .news-card .news-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: var(--transition);
        }

        .news-card:hover .news-img {
            transform: scale(1.02);
        }

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

        .news-card .news-body .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 10px;
        }

        .news-card .news-body .news-meta .tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(201, 168, 76, 0.12);
            color: var(--gold);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }

        .news-card .news-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-body .news-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            color: var(--gold);
            font-weight: 600;
            font-size: 14px;
        }

        .news-card .news-body .news-readmore i {
            transition: var(--transition);
        }

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

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px dashed var(--border);
            color: var(--text-light);
            font-size: 16px;
        }

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

            .news-card .news-img {
                height: 160px;
            }

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

        /* Stats */
        .stats-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
        }

        .stat-item .num {
            font-size: clamp(36px, 4vw, 52px);
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-item .label {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 400;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .stat-item .num {
                font-size: 32px;
            }
        }

        /* Steps /流程 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }

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

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-item .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
        }

        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .step-item {
                padding: 24px 16px;
            }
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .faq-question {
            width: 100%;
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            background: none;
            transition: var(--transition);
        }

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

        .faq-question i {
            font-size: 18px;
            color: var(--gold);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 28px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 28px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.8;
        }

        @media (max-width: 768px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 18px;
            }

            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, #1a2d5c 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 20px 0;
        }

        .cta-content h2 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-content p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 520px;
            margin: 0 auto 32px;
        }

        .cta-content .btn-primary {
            font-size: 18px;
            padding: 18px 44px;
        }

        /* Footer */
        .footer {
            background: #0a0f1e;
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.4);
        }

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

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Scroll to top */
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--gold), var(--accent));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
            z-index: 999;
        }

        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .scroll-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(201, 168, 76, 0.45);
        }

        /* Mobile overlay */
        .mobile-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .mobile-overlay.open {
            opacity: 1;
            visibility: visible;
        }

        /* Focus & accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--gold);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --primary-dark: #0f2440;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --border-light: #e2e8f0;
            --border-hover: #cbd5e1;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --transition: all 0.25s ease;
        }

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

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            letter-spacing: -0.5px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 1.2rem;
            font-weight: 800;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-list a {
            position: relative;
            padding: 8px 18px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            transition: var(--transition);
        }

        .nav-list a:hover {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-list a.active {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.10);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-cta {
            background: var(--primary) !important;
            color: #fff !important;
            padding: 8px 22px !important;
            border-radius: 10px !important;
            font-weight: 600 !important;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 2px 8px rgba(30, 58, 95, 0.25);
        }

        .nav-cta:hover {
            background: var(--primary-light) !important;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(30, 58, 95, 0.30) !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 6px;
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 70px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }

        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .breadcrumb {
            display: flex;
            justify-content: center;
            gap: 8px;
            align-items: center;
            margin-bottom: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.70);
        }

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

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

        .breadcrumb span {
            color: var(--accent-light);
            font-weight: 500;
        }

        /* ===== Section Common ===== */
        .section {
            padding: 72px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

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

        .section-header .badge {
            display: inline-block;
            padding: 4px 18px;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-dark);
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }

        /* ===== Feature Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .feature-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .feature-card .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            margin-top: 14px;
        }

        /* ===== Stats / Data ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 44px 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
        }

        .stat-item {
            text-align: center;
            border-right: 1px solid var(--border-light);
            padding: 0 12px;
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-item .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -1px;
            line-height: 1.2;
        }

        .stat-item .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== List / Timeline ===== */
        .flow-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .flow-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            padding-left: 68px;
        }

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

        .flow-item::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            left: 18px;
            top: 28px;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
        }

        .flow-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .flow-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ===== CTA ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }

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

        .cta-block h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.80);
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-block .btn-group {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1rem;
            border-radius: 12px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
        }

        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.40);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 12px;
            text-decoration: none;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: var(--transition);
        }

        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

        .faq-item summary {
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            transition: var(--transition);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item summary:hover {
            background: rgba(30, 58, 95, 0.03);
        }

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

        /* ===== Card Cover ===== */
        .cover-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .cover-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .cover-card .img-wrap {
            width: 100%;
            height: 190px;
            overflow: hidden;
            background: var(--border-light);
        }

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

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

        .cover-card .info {
            padding: 20px 22px 24px;
        }

        .cover-card .info h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .cover-card .info p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .cover-card .info .meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 56px 0 28px;
            margin-top: 20px;
        }

        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer .logo .logo-icon {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.65);
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.50);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.70);
            text-decoration: none;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cover-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .flow-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 20px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 12px 16px;
                width: 100%;
                border-radius: 8px;
            }
            .nav-list a.active::after {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .nav-cta {
                justify-content: center;
                margin-top: 6px;
            }

            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .page-banner {
                padding: 110px 0 50px;
                min-height: 240px;
            }

            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .cover-cards {
                grid-template-columns: 1fr;
            }
            .flow-list {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                padding: 28px 16px;
            }
            .stat-item {
                border-right: none;
                padding: 8px 0;
            }
            .stat-item .num {
                font-size: 1.8rem;
            }

            .cta-block {
                padding: 36px 20px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }

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

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 20px 12px;
            }
            .stat-item .num {
                font-size: 1.5rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
            .flow-item {
                padding-left: 58px;
            }
            .flow-item::before {
                left: 12px;
                top: 24px;
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --primary-dark: #0f2440;
            --accent: #e8a838;
            --accent-light: #f0c060;
            --accent-dark: #c88a20;
            --bg-body: #f4f7fb;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(30, 58, 95, 0.08);
            --shadow-hover: 0 12px 40px rgba(30, 58, 95, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            transition: var(--transition);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }

        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            font-size: 20px;
            font-weight: 700;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-xs);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }

        .nav-list a:hover {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.06);
        }

        .nav-list a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(30, 58, 95, 0.08);
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

        .nav-list a.nav-cta {
            background: var(--primary);
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-xs);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 6px;
        }

        .nav-list a.nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(30, 58, 95, 0.25);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 6px;
            background: none;
            border: none;
        }

        .nav-toggle span {
            width: 26px;
            height: 2.5px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 28px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
            }

            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }

            .nav-list a.nav-cta {
                justify-content: center;
                margin-left: 0;
                margin-top: 6px;
            }
        }

        /* ===== Article Banner ===== */
        .article-banner {
            margin-top: 72px;
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            background: var(--primary-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.88) 0%, rgba(30, 58, 95, 0.72) 50%, rgba(30, 58, 95, 0.50) 100%);
            z-index: 1;
        }

        .article-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 48px;
            padding-bottom: 48px;
            width: 100%;
        }

        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .article-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
        }

        .article-banner .breadcrumb a:hover {
            color: var(--accent-light);
        }

        .article-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.35);
        }

        .article-banner .breadcrumb .current {
            color: #fff;
            font-weight: 500;
        }

        .article-banner .category-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 14px;
        }

        .article-banner h1 {
            font-size: clamp(26px, 4vw, 44px);
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            max-width: 860px;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

        .article-banner .meta {
            display: flex;
            align-items: center;
            gap: 20px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            flex-wrap: wrap;
        }

        .article-banner .meta i {
            margin-right: 5px;
            opacity: 0.7;
        }

        .article-banner .meta span {
            display: flex;
            align-items: center;
        }

        /* ===== Article Body ===== */
        .article-section {
            padding: 48px 0 60px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

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

        .article-main {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 40px 44px;
            box-shadow: var(--shadow);
        }

        @media (max-width: 768px) {
            .article-main {
                padding: 24px 20px;
            }
        }

        .article-main .article-content {
            font-size: 16.5px;
            line-height: 1.85;
            color: var(--text-main);
        }

        .article-main .article-content p {
            margin-bottom: 1.4em;
        }

        .article-main .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin-top: 1.8em;
            margin-bottom: 0.6em;
            color: var(--primary);
        }

        .article-main .article-content h3 {
            font-size: 20px;
            font-weight: 600;
            margin-top: 1.4em;
            margin-bottom: 0.5em;
            color: var(--primary-light);
        }

        .article-main .article-content img {
            border-radius: var(--radius-sm);
            margin: 1.6em 0;
            box-shadow: var(--shadow);
        }

        .article-main .article-content ul,
        .article-main .article-content ol {
            padding-left: 1.6em;
            margin-bottom: 1.4em;
        }

        .article-main .article-content li {
            margin-bottom: 0.4em;
        }

        .article-main .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(232, 168, 56, 0.08);
            padding: 16px 20px;
            border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
            margin: 1.4em 0;
            color: var(--text-muted);
            font-style: italic;
        }

        .article-main .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-main .article-content a:hover {
            color: var(--accent-dark);
        }

        .article-main .article-content .wp-caption,
        .article-main .article-content .aligncenter {
            text-align: center;
            margin: 1.6em 0;
        }

        .article-main .article-content .wp-caption-text,
        .article-main .article-content figcaption {
            font-size: 14px;
            color: var(--text-light);
            margin-top: 8px;
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .article-not-found .icon {
            font-size: 56px;
            color: var(--text-light);
            margin-bottom: 20px;
        }

        .article-not-found h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .article-not-found p {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 24px;
        }

        .article-not-found .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: var(--radius-xs);
            font-weight: 600;
            transition: var(--transition);
        }

        .article-not-found .btn-back:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(30, 58, 95, 0.2);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 24px;
            box-shadow: var(--shadow);
        }

        .sidebar-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--accent);
            display: inline-block;
        }

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

        .sidebar-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
        }

        .sidebar-list li:last-child {
            border-bottom: none;
        }

        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: var(--text-main);
            line-height: 1.5;
            transition: var(--transition);
        }

        .sidebar-list a:hover {
            color: var(--primary-light);
        }

        .sidebar-list a .num {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            background: var(--bg-body);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
        }

        .sidebar-list a:hover .num {
            background: var(--primary);
            color: #fff;
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 0 0 60px;
        }

        .related-section .section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-section .section-title::after {
            content: '';
            flex: 1;
            height: 2px;
            background: linear-gradient(to right, var(--accent), transparent);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .related-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

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

        .related-card .card-img {
            height: 160px;
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }

        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .related-card .card-img .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(15, 36, 64, 0.6), transparent);
        }

        .related-card .card-body {
            padding: 18px 20px 22px;
        }

        .related-card .card-body .cat {
            font-size: 12px;
            color: var(--accent-dark);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .related-card .card-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .card-body .date {
            font-size: 13px;
            color: var(--text-light);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0 72px;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 36, 64, 0.92) 0%, rgba(30, 58, 95, 0.78) 100%);
        }

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

        .cta-section h2 {
            font-size: clamp(24px, 3.2vw, 36px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 580px;
            margin: 0 auto 28px;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: var(--radius-xs);
            font-size: 17px;
            font-weight: 700;
            transition: var(--transition);
        }

        .cta-section .cta-btn:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(232, 168, 56, 0.35);
        }

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

        .footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

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

        @media (max-width: 520px) {
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer .footer-brand .logo {
            color: #fff;
            margin-bottom: 14px;
        }

        .footer .footer-brand .logo .logo-icon {
            background: var(--accent);
            color: var(--primary-dark);
        }

        .footer .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

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

        .footer .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }

        .footer .footer-col ul a:hover {
            color: var(--accent-light);
        }

        .footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 22px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            gap: 12px;
        }

        .footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        @media (max-width: 520px) {
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Misc ===== */
        .tag-pill {
            display: inline-block;
            background: rgba(232, 168, 56, 0.12);
            color: var(--accent-dark);
            padding: 3px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            transition: var(--transition);
        }

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

        .share-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .share-bar span {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .share-bar a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-body);
            color: var(--text-muted);
            transition: var(--transition);
            font-size: 15px;
        }

        .share-bar a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .article-banner {
                min-height: 240px;
            }

            .article-banner h1 {
                font-size: 24px;
            }

            .article-banner .meta {
                font-size: 13px;
                gap: 12px;
            }

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

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

            .article-main .article-content {
                font-size: 15px;
            }

            .cta-section .cta-btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* focus-visible for accessibility */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }