/* roulang page: index */
:root {
            --primary: #1a5cf0;
            --primary-dark: #0d3fd0;
            --primary-light: #eaf1fe;
            --accent: #ff6b35;
            --accent-light: #fff0eb;
            --dark: #0b1528;
            --dark-2: #121f38;
            --bg: #f5f7fb;
            --bg-white: #ffffff;
            --text: #1a2233;
            --text-light: #6b7a8d;
            --border: #e3e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(26, 92, 240, 0.08);
            --shadow-lg: 0 14px 40px rgba(26, 92, 240, 0.14);
            --shadow-accent: 0 8px 24px rgba(255, 107, 53, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .section {
            padding: 96px 0;
        }
        .section-head {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            padding: 6px 20px;
            border-radius: 30px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--dark);
        }
        .section-head p {
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.8;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
        }
        .btn:hover {
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(26, 92, 240, 0.4);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 92, 240, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 8px 24px rgba(26, 92, 240, 0.32);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            border-color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-accent);
        }
        .btn-accent:hover {
            background: #e85a28;
            color: #fff;
            box-shadow: 0 10px 30px rgba(255, 107, 53, 0.35);
        }
        .btn-lg {
            padding: 18px 42px;
            font-size: 17px;
            border-radius: 14px;
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
            border-radius: 8px;
        }
        .badge {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .badge-blue {
            background: var(--primary-light);
            color: var(--primary);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(227, 232, 240, 0.7);
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 32px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .brand-logo:hover {
            color: var(--primary);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), #6aa0ff);
            border-radius: 10px;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 4px 12px rgba(26, 92, 240, 0.3);
        }
        .logo-text {
            font-size: 20px;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .main-nav a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
        }
        .main-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .main-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(26, 92, 240, 0.3);
        }
        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--dark);
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(11, 21, 40, 0.88), rgba(11, 21, 40, 0.55)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 160px 0 100px;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(transparent, var(--bg));
            pointer-events: none;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: 30px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(8px);
            margin-bottom: 28px;
        }
        .hero h1 {
            font-size: 58px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }
        .hero h1 .highlight {
            background: linear-gradient(120deg, #6aa0ff, #ffb08a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin-bottom: 40px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 56px;
        }
        .hero-stats {
            display: flex;
            gap: 48px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }
        .stat-item {
            text-align: left;
        }
        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .stat-label {
            margin-top: 6px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        .features-section {
            background: var(--bg);
            position: relative;
        }
        .feature-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 40px 32px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            margin-bottom: 24px;
            height: 100%;
        }
        .feature-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .feature-icon {
            width: 66px;
            height: 66px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 22px;
        }
        .feature-item:nth-child(1) .feature-icon {
            background: var(--primary-light);
            color: var(--primary);
        }
        .feature-item:nth-child(2) .feature-icon {
            background: #fff3e8;
            color: var(--accent);
        }
        .feature-item:nth-child(3) .feature-icon {
            background: #e6f9f0;
            color: #10b981;
        }
        .feature-item h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }

        .stats-band {
            background: linear-gradient(135deg, var(--dark), var(--dark-2)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            background-blend-mode: overlay;
            padding: 80px 0;
        }
        .stats-grid {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 32px;
        }
        .stats-block {
            text-align: center;
            flex: 1;
            min-width: 160px;
        }
        .stats-block .num {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .stats-block .num span {
            color: #6aa0ff;
        }
        .stats-block .label {
            margin-top: 8px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
        }

        .category-section {
            background: var(--bg-white);
        }
        .category-card {
            display: block;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-white);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            margin-bottom: 24px;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .category-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .category-card:hover .card-img img {
            transform: scale(1.06);
        }
        .category-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.4));
        }
        .category-card .card-body {
            padding: 26px 24px 30px;
        }
        .category-card .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }
        .category-card .card-body p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }
        .card-link i {
            transition: transform 0.3s ease;
        }
        .category-card:hover .card-link i {
            transform: translateX(4px);
        }

        .news-section {
            background: var(--bg);
        }
        .news-list {
            max-width: 880px;
            margin: 0 auto;
        }
        .news-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border);
            margin-bottom: 20px;
            border-left: 4px solid var(--primary);
        }
        .news-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateX(6px);
        }
        .news-item a {
            display: block;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        .news-date {
            font-size: 13px;
            color: var(--text-light);
        }
        .news-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-title a:hover {
            color: var(--primary);
        }
        .news-desc {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 4px;
        }
        .empty-tip {
            text-align: center;
            color: var(--text-light);
            padding: 48px 0;
            font-size: 16px;
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }

        .hot-section {
            background: var(--bg-white);
        }
        .hot-card {
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--dark);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            margin-bottom: 24px;
            height: 100%;
        }
        .hot-card:hover {
            transform: translateY(-6px) scale(1.01);
            box-shadow: var(--shadow-lg);
        }
        .hot-card .hot-img {
            height: 220px;
            position: relative;
        }
        .hot-card .hot-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .hot-card:hover .hot-img img {
            transform: scale(1.05);
        }
        .hot-card .hot-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 21, 40, 0.8), transparent 60%);
        }
        .hot-card .hot-label {
            position: absolute;
            top: 18px;
            left: 18px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.9);
            color: var(--primary);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .hot-card .hot-content {
            padding: 22px 24px 26px;
        }
        .hot-card .hot-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .hot-card .hot-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
        }

        .process-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }
        .process-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(26, 92, 240, 0.3), transparent 70%);
        }
        .process-section .section-head h2 {
            color: #fff;
        }
        .process-section .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .process-section .section-tag {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
            margin-top: 20px;
        }
        .step-item {
            text-align: center;
            padding: 36px 24px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-4px);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 18px;
            box-shadow: 0 8px 20px rgba(26, 92, 240, 0.4);
        }
        .step-item h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-item p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
        }

        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }
        .accordion-item:hover {
            box-shadow: var(--shadow-lg);
        }
        .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            transition: var(--transition);
            background: var(--bg-white);
            border-radius: var(--radius);
        }
        .accordion-title:hover {
            color: var(--primary);
            background: #f8faff;
        }
        .accordion-title::after {
            content: "\f107";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            color: var(--primary);
            font-size: 18px;
            margin-left: 16px;
            transition: transform 0.3s ease;
        }
        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
        }
        .accordion-content {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.8;
        }
        .accordion-item.is-active .accordion-content {
            padding: 0 28px 24px;
            max-height: 400px;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(26, 92, 240, 0.9), rgba(11, 21, 40, 0.95)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 96px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent 65%);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 40px;
            line-height: 1.8;
            position: relative;
            z-index: 2;
        }
        .cta-actions {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .site-footer {
            background: var(--dark);
            padding: 72px 0 32px;
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            margin-bottom: 12px;
        }
        .footer-contact i {
            color: var(--primary);
            width: 20px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 56px;
            padding-top: 28px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 44px;
            }
            .section {
                padding: 72px 0;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg-white);
                padding: 16px 20px;
                box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
                border-radius: 0 0 var(--radius) var(--radius);
            }
            .main-nav.open {
                display: block;
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .main-nav a {
                display: block;
                padding: 14px 18px;
                text-align: center;
            }
            .header-cta {
                gap: 8px;
            }
            .header-cta .btn-sm {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .hero {
                padding: 120px 0 80px;
                min-height: auto;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 24px;
            }
            .stat-num {
                font-size: 28px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .cta-section h2 {
                font-size: 30px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stats-grid {
                gap: 24px;
            }
            .stats-block .num {
                font-size: 36px;
            }
        }

/* roulang page: article */
:root {
            --c-primary: #1a1a2e;
            --c-secondary: #e94560;
            --c-accent: #f39c12;
            --c-bg: #f0f2f5;
            --c-card: #ffffff;
            --c-text: #2d3436;
            --c-muted: #6c7a89;
            --c-border: #e8ecf1;
            --r-sm: 8px;
            --r-md: 16px;
            --r-lg: 24px;
            --sh-sm: 0 2px 10px rgba(26, 26, 46, .07);
            --sh-md: 0 8px 28px rgba(26, 26, 46, .10);
            --sh-lg: 0 20px 48px rgba(26, 26, 46, .16);
            --sp-xs: 8px;
            --sp-sm: 16px;
            --sp-md: 28px;
            --sp-lg: 44px;
            --sp-xl: 72px;
        }

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

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

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .3s ease;
        }

        ul, ol {
            list-style: none;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        input, textarea {
            font-family: inherit;
        }

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

        /* ========== Header ========== */
        .site-header {
            background: rgba(26, 26, 46, .95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 24px rgba(0, 0, 0, .15);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--c-secondary), var(--c-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            box-shadow: 0 4px 14px rgba(233, 69, 96, .4);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 8px;
            margin: 0;
            padding: 0;
        }

        .main-nav li a {
            display: inline-flex;
            align-items: center;
            padding: 10px 20px;
            border-radius: 40px;
            color: rgba(255, 255, 255, .85);
            font-size: 15px;
            font-weight: 500;
            transition: all .3s ease;
        }

        .main-nav li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .1);
        }

        .main-nav li a.active {
            background: linear-gradient(135deg, var(--c-secondary), #ff6b6b);
            color: #fff;
            box-shadow: 0 4px 16px rgba(233, 69, 96, .35);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 40px;
            font-size: 15px;
            font-weight: 600;
            border: 2px solid transparent;
            transition: all .3s ease;
            cursor: pointer;
            line-height: 1.2;
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 15px 34px;
            font-size: 16px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--c-secondary), #ff6b6b);
            color: #fff;
            box-shadow: 0 4px 18px rgba(233, 69, 96, .35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(233, 69, 96, .45);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, .7);
            color: #fff;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, .1);
            color: #fff;
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }

        /* ========== Article Hero ========== */
        .article-hero {
            position: relative;
            padding: 72px 0 80px;
            background: linear-gradient(135deg, rgba(26, 26, 46, .92), rgba(26, 26, 46, .78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(243, 156, 18, .25), transparent 70%);
            pointer-events: none;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            margin-bottom: 28px;
        }

        .article-breadcrumb a {
            color: rgba(255, 255, 255, .7);
            transition: color .3s;
        }

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

        .article-breadcrumb .sep {
            font-size: 11px;
            opacity: .6;
        }

        .article-head-info {
            max-width: 800px;
        }

        .article-cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--c-secondary), #ff6b6b);
            color: #fff;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 18px;
            letter-spacing: 1px;
            box-shadow: 0 4px 14px rgba(233, 69, 96, .35);
        }

        .article-head-info h1 {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -.5px;
        }

        .article-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 24px;
            max-width: 640px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
        }

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

        .article-meta i {
            color: var(--c-accent);
        }

        /* ========== Article Main Section ========== */
        .article-main-section {
            padding: 60px 0;
            background: var(--c-bg);
        }

        .article-main {
            padding: 0 0 0 0;
        }

        .article-body {
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--sh-md);
            padding: 44px 48px;
            border: 1px solid rgba(255, 255, 255, .6);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #3a3f47;
        }

        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--c-primary);
            margin: 36px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--c-secondary);
        }

        .article-content h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--c-primary);
            margin: 28px 0 12px;
        }

        .article-content p {
            margin-bottom: 18px;
        }

        .article-content ul {
            margin: 0 0 20px;
            padding: 0;
        }

        .article-content ul li {
            position: relative;
            padding: 6px 0 6px 24px;
            margin-bottom: 6px;
        }

        .article-content ul li::before {
            content: '\f058';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 8px;
            color: var(--c-secondary);
            font-size: 14px;
        }

        .article-content blockquote {
            background: linear-gradient(135deg, rgba(26, 26, 46, .04), rgba(233, 69, 96, .06));
            border-left: 4px solid var(--c-secondary);
            padding: 20px 24px;
            border-radius: 0 var(--r-sm) var(--r-sm) 0;
            margin: 24px 0;
            font-style: italic;
            color: #555c66;
        }

        .article-content img {
            border-radius: var(--r-md);
            margin: 24px 0;
            box-shadow: var(--sh-sm);
        }

        .article-content a {
            color: var(--c-secondary);
            font-weight: 600;
            border-bottom: 1px dashed var(--c-secondary);
        }

        .article-content a:hover {
            color: var(--c-primary);
            border-bottom-color: var(--c-primary);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--c-border);
        }

        .article-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #f5f7fa;
            border: 1px solid var(--c-border);
            color: var(--c-muted);
            font-size: 13px;
            padding: 6px 14px;
            border-radius: 30px;
            transition: all .3s;
        }

        .article-tags .tag:hover {
            background: var(--c-primary);
            color: #fff;
            border-color: var(--c-primary);
        }

        .article-not-found {
            text-align: center;
            padding: 80px 40px;
            background: var(--c-card);
            border-radius: var(--r-lg);
            box-shadow: var(--sh-md);
        }

        .article-not-found i {
            font-size: 56px;
            color: var(--c-muted);
            margin-bottom: 20px;
            display: block;
        }

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

        .article-not-found p {
            color: var(--c-muted);
            margin-bottom: 24px;
        }

        /* ========== Sidebar ========== */
        .article-sidebar {
            padding-left: 8px;
        }

        .side-card {
            background: var(--c-card);
            border-radius: var(--r-md);
            box-shadow: var(--sh-sm);
            border: 1px solid var(--c-border);
            padding: 28px;
            margin-bottom: 28px;
        }

        .side-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--c-primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-card-title i {
            color: var(--c-secondary);
        }

        .hot-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
            transition: background .3s;
        }

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

        .hot-list li:hover {
            background: #fafbfc;
        }

        .hot-num {
            font-size: 16px;
            font-weight: 800;
            color: var(--c-muted);
            line-height: 1.4;
            min-width: 28px;
            text-align: center;
            background: #f0f2f5;
            border-radius: 8px;
            padding: 2px 0;
        }

        .hot-list li:nth-child(1) .hot-num {
            background: linear-gradient(135deg, var(--c-secondary), #ff6b6b);
            color: #fff;
        }

        .hot-list li:nth-child(2) .hot-num {
            background: linear-gradient(135deg, var(--c-accent), #ffbe5c);
            color: #fff;
        }

        .hot-list li:nth-child(3) .hot-num {
            background: linear-gradient(135deg, #4ecdc4, #6dd5ed);
            color: #fff;
        }

        .hot-info a {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-text);
            line-height: 1.5;
            display: inline-block;
            transition: color .3s;
        }

        .hot-info a:hover {
            color: var(--c-secondary);
        }

        .hot-info .hot-meta {
            font-size: 12px;
            color: var(--c-muted);
            margin-top: 4px;
            display: flex;
            gap: 8px;
        }

        .side-entry-card {
            position: relative;
            border-radius: var(--r-md);
            overflow: hidden;
            margin-bottom: 28px;
            box-shadow: var(--sh-md);
        }

        .side-entry-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            transition: transform .5s ease;
        }

        .side-entry-card:hover img {
            transform: scale(1.05);
        }

        .side-entry-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(26, 26, 46, .85));
            display: flex;
            align-items: flex-end;
            padding: 20px;
        }

        .side-entry-overlay span {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
        }

        .side-faq-item {
            padding: 14px 0;
            border-bottom: 1px solid var(--c-border);
        }

        .side-faq-item:last-child {
            border-bottom: none;
        }

        .side-faq-item h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-primary);
            margin-bottom: 4px;
            display: flex;
            gap: 6px;
        }

        .side-faq-item h5 i {
            color: var(--c-secondary);
            font-size: 12px;
            margin-top: 3px;
        }

        .side-faq-item p {
            font-size: 13px;
            color: var(--c-muted);
            line-height: 1.6;
            padding-left: 22px;
        }

        /* ========== Data Section ========== */
        .data-section {
            background: var(--c-primary);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .data-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(233, 69, 96, .2), transparent 60%);
        }

        .data-card {
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--r-md);
            transition: all .4s ease;
            position: relative;
            z-index: 1;
        }

        .data-card:hover {
            background: rgba(255, 255, 255, .1);
            transform: translateY(-6px);
            box-shadow: 0 16px 36px rgba(0, 0, 0, .25);
        }

        .data-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--c-secondary), var(--c-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #fff;
            box-shadow: 0 6px 20px rgba(233, 69, 96, .35);
        }

        .data-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .data-label {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            margin-top: 8px;
        }

        /* ========== Related Section ========== */
        .related-section {
            padding: 72px 0;
            background: var(--c-bg);
        }

        .section-head {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--c-secondary);
            text-transform: uppercase;
            margin-bottom: 8px;
            background: rgba(233, 69, 96, .1);
            padding: 5px 16px;
            border-radius: 30px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--c-primary);
            margin-bottom: 8px;
        }

        .section-head p {
            color: var(--c-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        .related-card {
            background: var(--c-card);
            border-radius: var(--r-md);
            overflow: hidden;
            box-shadow: var(--sh-sm);
            transition: all .35s ease;
            border: 1px solid var(--c-border);
            margin-bottom: 24px;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--sh-md);
        }

        .related-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s;
        }

        .related-card:hover .related-cover img {
            transform: scale(1.06);
        }

        .related-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(26, 26, 46, .85);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            backdrop-filter: blur(4px);
        }

        .related-info {
            padding: 18px 20px 20px;
        }

        .related-info h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--c-text);
            margin-bottom: 10px;
        }

        .related-info h3 a {
            display: block;
        }

        .related-info h3 a:hover {
            color: var(--c-secondary);
        }

        .related-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--c-muted);
        }

        .related-meta .hot-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--c-secondary);
            font-weight: 600;
        }

        /* ========== FAQ Section ========== */
        .faq-section {
            padding: 72px 0;
            background: var(--c-card);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--c-bg);
            border-radius: var(--r-md);
            padding: 24px 28px;
            margin-bottom: 16px;
            transition: box-shadow .3s;
            border: 1px solid var(--c-border);
        }

        .faq-item:hover {
            box-shadow: var(--sh-sm);
        }

        .faq-question {
            font-size: 16px;
            font-weight: 700;
            color: var(--c-primary);
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
        }

        .faq-question::before {
            content: '\f059';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--c-secondary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .faq-answer {
            font-size: 15px;
            color: var(--c-muted);
            line-height: 1.8;
            margin-top: 12px;
            padding-left: 30px;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, rgba(26, 26, 46, .95), rgba(26, 26, 46, .88)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            position: relative;
            overflow: hidden;
        }

        .cta-box {
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, .7);
            margin-bottom: 32px;
        }

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

        /* ========== Footer ========== */
        .site-footer {
            background: #141426;
            color: rgba(255, 255, 255, .65);
            padding: 64px 0 24px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--c-secondary), var(--c-accent));
        }

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

        .footer-col ul li a {
            font-size: 14px;
            transition: all .3s;
            display: inline-block;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 12px;
        }

        .footer-contact i {
            color: var(--c-secondary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            margin-top: 48px;
            padding-top: 24px;
            text-align: center;
            font-size: 14px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .article-hero {
                padding: 50px 0 56px;
            }

            .article-head-info h1 {
                font-size: 30px;
            }

            .article-body {
                padding: 32px 28px;
            }

            .article-sidebar {
                padding-left: 0;
                margin-top: 36px;
            }
        }

        @media (max-width: 768px) {
            .header-inner {
                height: 64px;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--c-primary);
                padding: 20px;
                border-radius: 0 0 16px 16px;
                box-shadow: var(--sh-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: all .35s ease;
                z-index: 999;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
            }

            .main-nav ul {
                flex-direction: column;
                gap: 12px;
            }

            .main-nav li a {
                width: 100%;
                justify-content: center;
            }

            .nav-toggle {
                display: flex;
            }

            .article-hero {
                padding: 40px 0 44px;
            }

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

            .article-desc {
                font-size: 14px;
            }

            .article-body {
                padding: 24px 20px;
                border-radius: var(--r-md);
            }

            .article-content h2 {
                font-size: 21px;
            }

            .article-content h3 {
                font-size: 18px;
            }

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

            .data-section {
                padding: 48px 0;
            }

            .data-card {
                margin-bottom: 16px;
            }

            .data-num {
                font-size: 28px;
            }

            .related-section,
            .faq-section,
            .cta-section {
                padding: 48px 0;
            }

            .section-head h2 {
                font-size: 25px;
            }

            .cta-box h2 {
                font-size: 26px;
            }

            .faq-item {
                padding: 18px 20px;
            }

            .faq-answer {
                font-size: 14px;
            }

            .footer-brand, .footer-col {
                margin-bottom: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 17px;
            }

            .header-cta .btn-primary {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .article-head-info h1 {
                font-size: 22px;
            }

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

            .article-body {
                padding: 20px 16px;
            }

            .article-content h2 {
                font-size: 19px;
            }

            .data-num {
                font-size: 24px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .cta-box .btn-group {
                flex-direction: column;
                align-items: center;
            }

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

            .footer-bottom p {
                font-size: 13px;
            }
        }

        /* Accessibility */
        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible {
            outline: 3px solid rgba(233, 69, 96, .5);
            outline-offset: 2px;
        }

/* roulang page: category1 */
:root {
    --primary: #151c34;
    --primary-dark: #0b0f1e;
    --primary-light: #2b3558;
    --accent: #ffc93c;
    --accent-hover: #ffb602;
    --accent-soft: #fff7e0;
    --mint: #00e5a0;
    --bg: #f4f5fb;
    --bg-white: #ffffff;
    --text: #1c2340;
    --text-muted: #6b7291;
    --border: #e5e8f2;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow: 0 12px 34px rgba(21,28,52,.08);
    --shadow-hover: 0 22px 48px rgba(21,28,52,.14);
    --shadow-dark: 0 16px 40px rgba(0,0,0,.35);
    --transition: all .28s ease;
    --font: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,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);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 92px 0; }
.section-dark { background: var(--primary); color: #e8eaf3; }
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-label { color: var(--accent); }
.section-head { text-align: center; max-width: 700px; margin: 0 auto 52px; }
.section-head h2 { font-size: 34px; font-weight: 800; letter-spacing: -1px; margin-bottom: 14px; color: var(--text); line-height: 1.3; }
.section-head p { color: var(--text-muted); font-size: 16px; }
.section-label {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 700; letter-spacing: 2px;
    color: var(--primary); background: var(--accent-soft);
    border: 1px solid rgba(255,201,60,.4);
    padding: 6px 16px; border-radius: 100px; margin-bottom: 14px;
    text-transform: uppercase;
}
.section-label::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.section-dark .section-label { background: rgba(255,201,60,.1); border-color: rgba(255,201,60,.3); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    font-size: 15px; font-weight: 700; line-height: 1;
    padding: 14px 28px; border-radius: 100px;
    border: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(21,28,52,.16); }
.btn:active { transform: translateY(0); box-shadow: none; }
.btn:focus-visible { outline: 3px solid rgba(255,201,60,.5); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-light); border-color: var(--primary-light); color: #fff; }
.btn-accent { background: var(--accent); color: var(--primary); border-color: var(--accent); }
.btn-accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--primary); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; color: #fff; }
.btn-white { background: #fff; color: var(--primary); border-color: #fff; }
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 17px 38px; font-size: 16px; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(21,28,52,.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand-logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
    width: 42px; height: 42px; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--accent), #ff9500);
    color: var(--primary); font-size: 19px; border-radius: 12px;
    box-shadow: 0 6px 16px rgba(255,201,60,.35);
}
.logo-text { font-size: 22px; font-weight: 800; color: #fff; letter-spacing: .5px; }
.main-nav ul { display: flex; align-items: center; gap: 8px; }
.main-nav li a {
    display: block; padding: 10px 20px; border-radius: 100px;
    color: rgba(255,255,255,.78); font-size: 15px; font-weight: 600;
    transition: var(--transition);
}
.main-nav li a:hover { color: var(--accent); background: rgba(255,255,255,.06); }
.main-nav li a.active { color: var(--primary); background: var(--accent); box-shadow: 0 4px 14px rgba(255,201,60,.35); }
.header-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; color: #fff; font-size: 20px; border-radius: 10px; background: rgba(255,255,255,.08); }

/* Page Hero */
.page-hero {
    position: relative;
    background: linear-gradient(125deg, rgba(11,15,30,.93) 0%, rgba(21,28,52,.85) 55%, rgba(43,53,88,.78) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    color: #fff;
    padding: 108px 0 96px;
    overflow: hidden;
}
.page-hero::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
    background: linear-gradient(to top, rgba(244,245,251,1), transparent);
    pointer-events: none;
}
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.65); margin-bottom: 24px; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 11px; color: rgba(255,255,255,.4); }
.hero-title { font-size: 46px; font-weight: 900; line-height: 1.25; letter-spacing: -1px; margin-bottom: 20px; }
.hero-title span { color: var(--accent); }
.hero-sub { font-size: 17px; color: rgba(255,255,255,.75); max-width: 620px; margin-bottom: 34px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-metrics { display: flex; gap: 44px; flex-wrap: wrap; }
.metric strong { display: block; font-size: 30px; font-weight: 900; color: var(--accent); line-height: 1.2; }
.metric span { font-size: 13px; color: rgba(255,255,255,.6); letter-spacing: 1px; }

/* Guide Overview */
.guide-overview { background: var(--bg-white); }
.overview-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-hover); }
.overview-media img { width: 100%; height: 360px; object-fit: cover; }
.media-badge {
    position: absolute; right: 18px; bottom: 18px;
    background: rgba(11,15,30,.85); backdrop-filter: blur(8px);
    color: var(--accent); font-size: 13px; font-weight: 700;
    padding: 10px 18px; border-radius: 100px;
    display: flex; align-items: center; gap: 8px;
    border: 1px solid rgba(255,201,60,.3);
}
.overview-check { margin-top: 24px; display: grid; gap: 12px; }
.overview-check li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--text); }
.overview-check li i { color: var(--mint); font-size: 17px; margin-top: 3px; }
.card-list { margin-top: 40px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.mini-card {
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 22px 18px;
    text-align: center; transition: var(--transition);
}
.mini-card:hover { background: var(--accent-soft); border-color: rgba(255,201,60,.4); transform: translateY(-4px); }
.mini-card i { font-size: 24px; color: var(--accent); margin-bottom: 10px; }
.mini-card strong { display: block; font-size: 20px; font-weight: 800; color: var(--text); }
.mini-card span { font-size: 13px; color: var(--text-muted); }

/* Steps */
.steps-section { background: var(--primary); position: relative; overflow: hidden; }
.steps-section::before {
    content: ''; position: absolute; top: -120px; right: -120px;
    width: 400px; height: 400px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,201,60,.12), transparent 70%);
}
.step-card {
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 34px 26px;
    height: 100%;
    position: relative;
    backdrop-filter: blur(6px);
    transition: var(--transition);
}
.step-card:hover { background: rgba(255,255,255,.09); border-color: rgba(255,201,60,.35); transform: translateY(-6px); box-shadow: var(--shadow-dark); }
.step-num {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px; border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), #ff9500);
    color: var(--primary); font-size: 20px; font-weight: 900;
    margin-bottom: 18px; box-shadow: 0 8px 20px rgba(255,201,60,.3);
}
.step-card h3 { color: #fff; font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.step-card p { color: rgba(255,255,255,.68); font-size: 14px; line-height: 1.75; }

/* Methods */
.methods-section { background: var(--bg); }
.method-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: var(--transition); height: 100%;
    display: flex; flex-direction: column;
}
.method-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-hover); border-color: rgba(255,201,60,.4); }
.method-thumb {
    position: relative; height: 180px;
    background-size: cover; background-position: center;
    display: flex; align-items: flex-end; padding: 16px;
}
.method-thumb::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(11,15,30,.72), transparent 70%);
}
.method-thumb .tag { position: relative; z-index: 1; }
.tag {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 12px; font-weight: 700;
    padding: 5px 13px; border-radius: 100px; letter-spacing: .5px;
}
.tag-hot { background: linear-gradient(90deg, #ff5e5e, #ff3d3d); color: #fff; box-shadow: 0 4px 12px rgba(255,61,61,.35); }
.method-body { padding: 26px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.method-body h3 { font-size: 19px; font-weight: 800; color: var(--text); margin-bottom: 10px; }
.method-body h3 i { color: var(--accent); margin-right: 8px; }
.method-body p { color: var(--text-muted); font-size: 14px; line-height: 1.75; flex: 1; margin-bottom: 18px; }
.progress-label { font-size: 13px; color: var(--text-muted); display: flex; justify-content: space-between; align-items: center; margin-bottom: 7px; }
.progress-label strong { color: var(--text); }
.progress {
    background: #eef0f7; border-radius: 100px; height: 8px; overflow: hidden; margin: 0;
}
.progress-meter {
    display: block; height: 100%; max-width: 100%;
    background: linear-gradient(90deg, var(--accent), #ff9500);
    border-radius: 100px; position: relative;
}
.progress-meter::after {
    content: ''; position: absolute; right: 3px; top: 50%; transform: translateY(-50%);
    width: 4px; height: 4px; border-radius: 50%; background: #fff;
}

/* Hot Paths */
.hot-paths-section { background: var(--bg-white); }
.path-list {
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    overflow: hidden; background: var(--bg-white);
    box-shadow: var(--shadow);
}
.path-item {
    display: flex; align-items: center; gap: 20px;
    padding: 22px 24px;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}
.path-item:last-child { border-bottom: none; }
.path-item:hover { background: var(--accent-soft); }
.path-rank { font-size: 24px; font-weight: 900; color: #dde1ee; min-width: 46px; }
.path-item:nth-child(1) .path-rank { color: var(--accent); }
.path-item:nth-child(2) .path-rank { color: #c9d4e8; }
.path-item:nth-child(3) .path-rank { color: #e9b678; }
.path-info { flex: 1; min-width: 0; }
.path-info h4 { font-size: 16px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.path-info p { font-size: 13px; color: var(--text-muted); margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.path-meter { width: 180px; flex-shrink: 0; }
.path-score { display: block; text-align: right; font-size: 15px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.side-support {
    position: sticky; top: 120px;
    background: linear-gradient(145deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-lg); color: #fff;
    padding: 38px 30px; box-shadow: var(--shadow-dark);
    overflow: hidden;
}
.side-support::before {
    content: ''; position: absolute; top: -60px; right: -60px;
    width: 180px; height: 180px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,201,60,.2), transparent 70%);
}
.side-support .support-icon {
    width: 56px; height: 56px; border-radius: 16px;
    background: rgba(255,201,60,.15); border: 1px solid rgba(255,201,60,.3);
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; color: var(--accent); margin-bottom: 20px;
}
.side-support h3 { font-size: 21px; font-weight: 800; margin-bottom: 12px; }
.side-support p { color: rgba(255,255,255,.7); font-size: 14px; line-height: 1.8; margin-bottom: 22px; }

/* FAQ */
.faq-section { background: var(--bg); }
.custom-accordion {
    max-width: 860px; margin: 0 auto;
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow);
}
.custom-accordion .accordion-item { border-bottom: 1px solid var(--border); }
.custom-accordion .accordion-item:last-child { border-bottom: none; }
.custom-accordion .accordion-title {
    color: var(--text); font-size: 16px; font-weight: 700;
    padding: 22px 26px 22px 58px;
    position: relative; display: block;
    transition: var(--transition);
}
.custom-accordion .accordion-title::before {
    content: '\f059';
    font-family: "Font Awesome 6 Free";
    font-weight: 400; font-size: 16px;
    color: var(--accent);
    position: absolute; left: 24px; top: 22px;
}
.custom-accordion .accordion-title::after {
    content: '\f107';
    font-family: "Font Awesome 6 Free";
    font-weight: 900; font-size: 15px;
    color: var(--text-muted);
    position: absolute; right: 24px; top: 22px;
    transition: var(--transition);
}
.custom-accordion .accordion-title:hover { color: var(--primary); background: var(--accent-soft); }
.custom-accordion .accordion-item.is-active > .accordion-title::after { transform: rotate(180deg); color: var(--accent); }
.custom-accordion .accordion-content { padding: 0 26px 24px 58px; }
.custom-accordion .accordion-content p { color: var(--text-muted); font-size: 15px; line-height: 1.85; }

/* Safety */
.safety-section { background: var(--primary); position: relative; overflow: hidden; }
.safety-section::after {
    content: ''; position: absolute; bottom: -100px; left: -100px;
    width: 320px; height: 320px; border-radius: 50%;
    background: radial-gradient(circle, rgba(0,229,160,.1), transparent 70%);
}
.safety-card {
    background: rgba(255,255,255,.05);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 32px 26px;
    height: 100%;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}
.safety-card:hover { background: rgba(255,255,255,.09); border-color: rgba(0,229,160,.35); transform: translateY(-6px); }
.safety-icon {
    width: 56px; height: 56px; border-radius: 16px;
    background: rgba(0,229,160,.12); border: 1px solid rgba(0,229,160,.25);
    display: flex; align-items: center; justify-content: center;
    font-size: 23px; color: var(--mint); margin-bottom: 18px;
}
.safety-card h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.safety-card p { color: rgba(255,255,255,.66); font-size: 14px; line-height: 1.8; }

/* CTA */
.cta-section {
    background: linear-gradient(135deg, var(--accent) 0%, #ff9f1a 100%);
    padding: 40px 0;
}
.cta-box {
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.25);
    border-radius: var(--radius-lg);
    padding: 56px 40px;
    text-align: center;
    backdrop-filter: blur(8px);
    box-shadow: 0 20px 50px rgba(255,156,14,.25);
}
.cta-box h2 { color: var(--primary); font-size: 32px; font-weight: 900; margin-bottom: 14px; letter-spacing: -1px; }
.cta-box p { color: rgba(21,28,52,.75); font-size: 16px; max-width: 560px; margin: 0 auto 30px; }

/* Footer */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,.68);
    padding: 70px 0 0;
}
.site-footer a { color: rgba(255,255,255,.68); }
.site-footer a:hover { color: var(--accent); }
.footer-brand { margin-bottom: 24px; }
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-logo .logo-icon { width: 38px; height: 38px; font-size: 16px; border-radius: 10px; }
.footer-logo span:last-child { font-size: 19px; font-weight: 800; color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.85; color: rgba(255,255,255,.52); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul a { font-size: 14px; display: inline-flex; align-items: center; gap: 8px; }
.footer-col ul a::before { content: '·'; color: var(--accent); font-weight: 900; }
.footer-contact li { font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-contact li i { color: var(--accent); width: 16px; }
.footer-bottom {
    margin-top: 50px; padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,.08);
    text-align: center;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,.45); }

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(26px); }
    to { opacity: 1; transform: translateY(0); }
}
.page-hero .hero-title, .page-hero .hero-sub, .page-hero .hero-actions, .page-hero .hero-metrics {
    animation: fadeUp .7s ease both;
}
.page-hero .hero-sub { animation-delay: .12s; }
.page-hero .hero-actions { animation-delay: .24s; }
.page-hero .hero-metrics { animation-delay: .36s; }

/* Responsive */
@media screen and (max-width: 1024px) {
    .section { padding: 76px 0; }
    .hero-title { font-size: 38px; }
    .path-meter { width: 130px; }
}
@media screen and (max-width: 768px) {
    .header-inner { height: 66px; }
    .main-nav {
        position: fixed; top: 66px; left: 0; right: 0;
        background: var(--primary);
        padding: 12px 24px 20px;
        border-bottom: 1px solid rgba(255,255,255,.1);
        box-shadow: 0 18px 30px rgba(0,0,0,.3);
        transform: translateY(-120%);
        opacity: 0; visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    .main-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }
    .main-nav ul { flex-direction: column; gap: 4px; align-items: stretch; }
    .main-nav li a { text-align: center; padding: 14px; font-size: 16px; }
    .nav-toggle { display: inline-flex; }
    .header-cta .btn-sm { display: none; }
    .hero-title { font-size: 32px; }
    .hero-sub { font-size: 15px; }
    .hero-metrics { gap: 28px; }
    .metric strong { font-size: 24px; }
    .section-head h2 { font-size: 27px; }
    .overview-media img { height: 260px; }
    .card-list { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .mini-card { padding: 16px 10px; }
    .path-item { flex-wrap: wrap; gap: 12px; }
    .path-meter { width: 100%; }
    .cta-box { padding: 40px 24px; }
    .cta-box h2 { font-size: 26px; }
    .site-footer { padding-top: 50px; }
}
@media screen and (max-width: 520px) {
    .container { padding: 0 18px; }
    .section { padding: 60px 0; }
    .hero-title { font-size: 27px; }
    .hero-actions .btn { width: 100%; }
    .hero-metrics { flex-direction: column; gap: 18px; }
    .metric { display: flex; align-items: center; gap: 12px; }
    .metric strong { font-size: 21px; }
    .overview-check li { font-size: 14px; }
    .card-list { grid-template-columns: repeat(3, 1fr); }
    .mini-card strong { font-size: 16px; }
    .step-card { padding: 26px 20px; }
    .method-thumb { height: 150px; }
    .method-body { padding: 20px 18px; }
    .custom-accordion .accordion-title { padding: 18px 20px 18px 48px; font-size: 15px; }
    .custom-accordion .accordion-title::before { left: 18px; font-size: 14px; }
    .custom-accordion .accordion-title::after { right: 18px; }
    .custom-accordion .accordion-content { padding: 0 20px 20px 48px; }
    .cta-box h2 { font-size: 23px; }
    .cta-box p { font-size: 14px; }
    .footer-bottom p { font-size: 12px; }
}