/* roulang page: index */
:root {
            --primary: #d4a74d;
            --primary-light: #e8c56d;
            --primary-dark: #a8802f;
            --bg-body: #0b0e14;
            --bg-sidebar: #11151c;
            --bg-card: #161b24;
            --bg-elevated: #1c2331;
            --text-main: #e8e6e1;
            --text-muted: #8b919a;
            --text-weak: #5c6470;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.14);
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --sidebar-width: 248px;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font);
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.2;
            border: 2px solid transparent;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--primary);
            color: #141414;
            border-color: var(--primary);
            box-shadow: 0 4px 18px rgba(212, 167, 77, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 167, 77, 0.35);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-main);
            border-color: var(--border-strong);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(212, 167, 77, 0.06);
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 16px 38px;
            font-size: 16px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            background: rgba(212, 167, 77, 0.12);
            color: var(--primary);
            border: 1px solid rgba(212, 167, 77, 0.25);
            letter-spacing: 0.3px;
        }

        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            background: linear-gradient(135deg, rgba(212, 167, 77, 0.18), rgba(212, 167, 77, 0.05));
            color: var(--primary);
            border: 1px solid rgba(212, 167, 77, 0.2);
            margin-bottom: 16px;
        }

        /* App Shell Layout */
        .app-shell {
            min-height: 100vh;
            position: relative;
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            z-index: 1001;
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            transform: translateX(-100%);
        }

        .sidebar.open {
            transform: translateX(0);
        }

        .sidebar-brand {
            padding: 32px 24px 24px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #141414;
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(212, 167, 77, 0.3);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 17px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .brand-text span {
            display: block;
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 400;
            letter-spacing: 1px;
        }

        .sidebar-nav {
            padding: 24px 14px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 13px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-link.active {
            color: var(--primary);
            background: rgba(212, 167, 77, 0.1);
            border-color: rgba(212, 167, 77, 0.18);
            font-weight: 600;
        }

        .nav-link:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .sidebar-footer {
            padding: 20px 24px;
            border-top: 1px solid var(--border);
            text-align: center;
        }

        .sidebar-footer p {
            margin: 0;
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        .sidebar-footer .footer-domain {
            color: var(--text-muted);
            font-weight: 500;
        }

        .sidebar-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }

        .sidebar-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        .mobile-topbar {
            position: sticky;
            top: 0;
            z-index: 900;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 20px;
            background: rgba(17, 21, 28, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .menu-toggle {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border-strong);
            background: transparent;
            color: var(--text-main);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--primary);
            color: var(--primary);
        }

        .mobile-brand {
            font-weight: 800;
            font-size: 16px;
            letter-spacing: 0.5px;
        }

        .main-area {
            min-height: 100vh;
            transition: var(--transition);
        }

        /* Hero */
        .hero {
            position: relative;
            padding: 140px 0 120px;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center center;
            background-attachment: fixed;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 14, 20, 0.92) 0%, rgba(11, 14, 20, 0.72) 45%, rgba(11, 14, 20, 0.45) 100%);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(212, 167, 77, 0.12) 0%, transparent 60%);
            z-index: 2;
        }

        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 760px;
        }

        .hero .hero-badge {
            margin-bottom: 24px;
        }

        .hero h1 {
            font-size: clamp(42px, 6vw, 72px);
            font-weight: 900;
            line-height: 1.1;
            margin: 0 0 24px;
            letter-spacing: 2px;
            background: linear-gradient(135deg, #ffffff 20%, var(--primary-light) 70%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 18px;
            color: rgba(232, 230, 225, 0.85);
            line-height: 1.8;
            margin-bottom: 40px;
            max-width: 620px;
        }

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

        .hero-trust {
            display: flex;
            gap: 28px;
            margin-top: 48px;
            flex-wrap: wrap;
        }

        .hero-trust-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .hero-trust-item i {
            color: var(--primary);
            font-size: 16px;
        }

        /* Section */
        .section {
            padding: 100px 0;
            position: relative;
        }

        .section-alt {
            background: #0e1219;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
            max-width: 720px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-header h2 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.25;
            margin: 16px 0 16px;
            letter-spacing: 1px;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.7;
            margin: 0;
        }

        /* Feature Cards */
        .features-grid {
            margin-top: 20px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 30px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: var(--border-strong);
            background: var(--bg-elevated);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(212, 167, 77, 0.12);
            border: 1px solid rgba(212, 167, 77, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            margin-bottom: 22px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            transform: scale(1.08);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin: 0 0 12px;
        }

        .feature-card p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
        }

        /* Category Cards */
        .category-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .category-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(212, 167, 77, 0.3);
        }

        .category-cover {
            height: 210px;
            overflow: hidden;
            position: relative;
        }

        .category-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .category-card:hover .category-cover img {
            transform: scale(1.05);
        }

        .category-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 14, 20, 0.5), transparent 60%);
        }

        .category-body {
            padding: 28px 28px 32px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-body h3 {
            font-size: 21px;
            font-weight: 700;
            margin: 0 0 10px;
        }

        .category-body p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }

        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
        }

        .category-link i {
            transition: transform 0.3s ease;
        }

        .category-link:hover i {
            transform: translateX(5px);
        }

        /* Post Card */
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px;
            height: 100%;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .post-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            flex-wrap: wrap;
            gap: 8px;
        }

        .post-meta .badge {
            font-size: 12px;
            padding: 4px 12px;
        }

        .post-meta time {
            font-size: 13px;
            color: var(--text-weak);
        }

        .post-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 10px;
        }

        .post-card h3 a {
            color: var(--text-main);
        }

        .post-card h3 a:hover {
            color: var(--primary);
        }

        .post-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
        }

        .read-more i {
            transition: transform 0.3s;
        }

        .read-more:hover i {
            transform: translateX(4px);
        }

        .empty-state {
            background: var(--bg-card);
            border: 1px dashed var(--border-strong);
            border-radius: var(--radius);
            padding: 48px;
            text-align: center;
            color: var(--text-muted);
            font-size: 15px;
        }

        /* Stats */
        .stats-section {
            background-image: linear-gradient(135deg, rgba(212, 167, 77, 0.08), transparent), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 14, 20, 0.9);
        }

        .stats-grid {
            position: relative;
            z-index: 2;
        }

        .stat-block {
            text-align: center;
            padding: 32px 20px;
            background: rgba(22, 27, 36, 0.7);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            backdrop-filter: blur(6px);
            height: 100%;
            transition: var(--transition);
        }

        .stat-block:hover {
            border-color: rgba(212, 167, 77, 0.3);
            transform: translateY(-4px);
        }

        .stat-number {
            font-size: 48px;
            font-weight: 900;
            line-height: 1.1;
            color: var(--primary);
            margin-bottom: 10px;
            font-family: var(--font);
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 1px;
        }

        /* Process Timeline */
        .process-section {
            position: relative;
        }

        .timeline {
            margin-top: 40px;
            position: relative;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), rgba(212, 167, 77, 0.1));
            transform: translateX(-50%);
        }

        .timeline-item {
            display: flex;
            justify-content: flex-end;
            padding: 24px 0;
            position: relative;
            width: 50%;
        }

        .timeline-item:nth-child(even) {
            justify-content: flex-start;
            align-self: flex-end;
            margin-left: 50%;
        }

        .timeline-content {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 26px 28px;
            margin: 0 32px;
            width: calc(100% - 64px);
            transition: var(--transition);
        }

        .timeline-content:hover {
            box-shadow: var(--shadow);
            border-color: var(--border-strong);
        }

        .timeline-step {
            position: absolute;
            top: 32px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #141414;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            box-shadow: 0 0 0 4px rgba(212, 167, 77, 0.15);
            z-index: 2;
        }

        .timeline-item:nth-child(odd) .timeline-step {
            right: -20px;
        }

        .timeline-item:nth-child(even) .timeline-step {
            left: -20px;
        }

        .timeline-content h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 8px;
        }

        .timeline-content p {
            color: var(--text-muted);
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question {
            padding: 22px 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            gap: 16px;
        }

        .faq-question i {
            color: var(--primary);
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        .faq-answer p {
            padding: 0 26px 24px;
            margin: 0;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            padding: 110px 0;
            position: relative;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(130deg, rgba(11, 14, 20, 0.95), rgba(11, 14, 20, 0.75));
        }

        .cta-box {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            margin: 0 0 16px;
            line-height: 1.2;
        }

        .cta-box p {
            color: var(--text-muted);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

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

        /* Footer */
        .site-footer {
            background: #0a0d12;
            border-top: 1px solid var(--border);
            padding: 70px 0 30px;
        }

        .footer-brand {
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 14px;
            border-radius: 10px;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 320px;
        }

        .footer-links-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

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

        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border);
            margin-top: 50px;
            padding-top: 24px;
            text-align: center;
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom .footer-domain {
            color: var(--text-muted);
        }

        /* Responsive */
        @media (min-width: 1024px) {
            .sidebar {
                transform: translateX(0);
            }

            .mobile-topbar {
                display: none;
            }

            .main-area {
                margin-left: var(--sidebar-width);
            }
        }

        @media (max-width: 1023px) and (min-width: 769px) {
            .sidebar {
                width: 280px;
            }

            .hero {
                padding: 100px 0 80px;
                background-attachment: scroll;
            }

            .section {
                padding: 80px 0;
            }

            .timeline::before {
                left: 20px;
            }

            .timeline-item,
            .timeline-item:nth-child(even) {
                width: 100%;
                margin-left: 0;
                justify-content: flex-start;
                padding-left: 56px;
            }

            .timeline-content {
                margin: 0;
                width: auto;
            }

            .timeline-item:nth-child(odd) .timeline-step,
            .timeline-item:nth-child(even) .timeline-step {
                left: 0;
                right: auto;
            }

            .stat-number {
                font-size: 38px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .hero {
                padding: 80px 0 64px;
                background-attachment: scroll;
            }

            .hero h1 {
                font-size: 38px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-trust {
                flex-direction: column;
                gap: 14px;
            }

            .section {
                padding: 64px 0;
            }

            .section-header {
                text-align: left;
                margin-bottom: 40px;
            }

            .section-header h2 {
                font-size: 30px;
            }

            .feature-card {
                padding: 28px 24px;
            }

            .category-cover {
                height: 170px;
            }

            .category-body {
                padding: 22px;
            }

            .stats-grid .cell {
                margin-bottom: 20px;
            }

            .stat-number {
                font-size: 34px;
            }

            .timeline::before {
                left: 18px;
            }

            .timeline-item,
            .timeline-item:nth-child(even) {
                width: 100%;
                margin-left: 0;
                justify-content: flex-start;
                padding-left: 50px;
                padding-right: 0;
                padding-bottom: 32px;
            }

            .timeline-content {
                margin: 0;
                width: auto;
                padding: 20px;
            }

            .timeline-item:nth-child(odd) .timeline-step,
            .timeline-item:nth-child(even) .timeline-step {
                left: 0;
                right: auto;
                width: 36px;
                height: 36px;
                font-size: 13px;
            }

            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-answer p {
                padding: 0 20px 20px;
                font-size: 14px;
            }

            .cta-section {
                padding: 80px 0;
            }

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

            .site-footer {
                padding: 50px 0 24px;
            }

            .footer-bottom {
                margin-top: 32px;
            }
        }

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

            .hero h1 {
                font-size: 32px;
            }

            .hero-subtitle {
                font-size: 15px;
            }

            .section-header h2 {
                font-size: 26px;
            }

            .btn {
                padding: 12px 22px;
                font-size: 14px;
            }

            .btn-lg {
                padding: 14px 28px;
            }

            .post-card {
                padding: 22px;
            }

            .stat-number {
                font-size: 30px;
            }
        }

        @media (min-width: 1280px) {
            .hero {
                padding: 160px 0 140px;
            }

            .hero-content {
                max-width: 820px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #0d1b2a;
            --primary-light: #1b2d45;
            --accent: #d4a544;
            --accent-light: #f0c860;
            --bg-body: #f4f6fb;
            --bg-deep: #0d1b2a;
            --text-main: #16233a;
            --text-muted: #63708a;
            --border: #e1e8f0;
            --card-bg: #ffffff;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 10px 30px rgba(13, 27, 42, .06);
            --shadow-hover: 0 18px 40px rgba(13, 27, 42, .12);
            --transition: .3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== App Shell ===== */
        .app-shell {
            min-height: 100vh;
            display: flex;
        }
        .sidebar {
            width: 280px;
            position: fixed;
            top: 0;
            left: 0;
            height: 100vh;
            background: var(--bg-deep);
            color: #cfd9e8;
            display: flex;
            flex-direction: column;
            padding: 32px 20px;
            z-index: 999;
            border-right: 1px solid rgba(255, 255, 255, .04);
            box-shadow: 4px 0 30px rgba(0, 0, 0, .2);
            transition: transform .35s ease;
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 8px 28px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 24px;
        }
        .brand-icon {
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--accent), #b8862e);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0d1b2a;
            font-size: 20px;
            box-shadow: 0 6px 18px rgba(212, 165, 68, .35);
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: #ffffff;
            letter-spacing: .5px;
            line-height: 1.4;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 16px;
            border-radius: 12px;
            color: #a7b4c7;
            font-size: 15px;
            font-weight: 500;
            transition: all .28s ease;
            border: 1px solid transparent;
        }
        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
            color: #6d7c92;
            transition: color .28s ease;
        }
        .nav-link:hover {
            background: rgba(255, 255, 255, .06);
            color: #ffffff;
            border-color: rgba(255, 255, 255, .05);
            transform: translateX(3px);
        }
        .nav-link.active {
            background: linear-gradient(135deg, rgba(212, 165, 68, .18), rgba(212, 165, 68, .08));
            color: var(--accent-light);
            border-color: rgba(212, 165, 68, .22);
            font-weight: 600;
        }
        .nav-link.active i {
            color: var(--accent-light);
        }
        .sidebar-card {
            margin-top: 24px;
            padding: 18px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 14px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .sidebar-card i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 3px;
        }
        .sidebar-card p {
            font-size: 13px;
            color: #93a1b8;
            line-height: 1.6;
        }
        .main-content {
            flex: 1;
            margin-left: 280px;
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .mobile-header {
            display: none;
            background: var(--bg-deep);
            padding: 14px 20px;
            align-items: center;
            justify-content: space-between;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 998;
        }
        .mobile-header .brand-row {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 16px;
        }
        .mobile-header .menu-btn {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            color: #fff;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            transition: background .3s ease;
        }
        .mobile-header .menu-btn:hover {
            background: rgba(255, 255, 255, .15);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, .5);
            z-index: 998;
        }
        /* ===== Hero ===== */
        .page-hero {
            background: linear-gradient(135deg, rgba(13, 27, 42, .92), rgba(20, 38, 60, .8)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 90px 0 80px;
            color: #fff;
            position: relative;
        }
        .breadcrumb-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            margin-bottom: 18px;
        }
        .breadcrumb-nav a {
            color: var(--accent-light);
        }
        .breadcrumb-nav a:hover {
            color: #fff;
        }
        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, .4);
        }
        .page-hero h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .page-hero .hero-sub {
            max-width: 640px;
            font-size: 16px;
            color: rgba(255, 255, 255, .75);
            margin-bottom: 30px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all .3s ease;
        }
        .btn-accent {
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            color: #0d1b2a;
            box-shadow: 0 8px 24px rgba(212, 165, 68, .3);
        }
        .btn-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 32px rgba(212, 165, 68, .4);
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .35);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .1);
            border-color: #fff;
            transform: translateY(-3px);
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 165, 68, .15);
            border: 1px solid rgba(212, 165, 68, .3);
            color: var(--accent-light);
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }
        /* ===== Section common ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(212, 165, 68, .1);
            color: #9a7428;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 18px;
            border-radius: 50px;
            margin-bottom: 14px;
            letter-spacing: .5px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 40px;
        }
        /* ===== Feature cards ===== */
        .feature-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 34px 28px;
            box-shadow: var(--shadow);
            transition: all .35s ease;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: opacity .35s ease;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(212, 165, 68, .35);
        }
        .feature-card:hover::after {
            opacity: 1;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(212, 165, 68, .15), rgba(212, 165, 68, .05));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: #9a7428;
            margin-bottom: 22px;
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .feature-card p {
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        /* ===== Cover cards ===== */
        .cover-card-wrap {
            height: 100%;
            display: flex;
        }
        .cover-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all .35s ease;
            display: flex;
            flex-direction: column;
            width: 100%;
        }
        .cover-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .cover-img {
            height: 220px;
            overflow: hidden;
            position: relative;
        }
        .cover-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .cover-card:hover .cover-img img {
            transform: scale(1.05);
        }
        .cover-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(13, 27, 42, .35));
        }
        .cover-body {
            padding: 26px 24px 30px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .cover-body .tag {
            align-self: flex-start;
            background: rgba(212, 165, 68, .1);
            color: #9a7428;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 50px;
            margin-bottom: 14px;
        }
        .cover-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
        }
        .cover-body p {
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }
        .link-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #9a7428;
            font-weight: 600;
            font-size: 14px;
        }
        .link-more i {
            transition: transform .3s ease;
        }
        .link-more:hover {
            color: var(--primary);
        }
        .link-more:hover i {
            transform: translateX(4px);
        }
        /* ===== Steps ===== */
        .steps-section {
            background: var(--bg-deep);
            color: #fff;
            position: relative;
        }
        .steps-section .section-title {
            color: #fff;
        }
        .steps-section .section-sub {
            color: rgba(255, 255, 255, .65);
        }
        .steps-section .section-tag {
            background: rgba(212, 165, 68, .15);
            color: var(--accent-light);
        }
        .step-item {
            position: relative;
            padding: 32px 26px 30px 70px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: var(--radius);
            height: 100%;
            transition: all .35s ease;
        }
        .step-item:hover {
            background: rgba(255, 255, 255, .07);
            border-color: rgba(212, 165, 68, .35);
            transform: translateY(-4px);
        }
        .step-num {
            position: absolute;
            left: 20px;
            top: 30px;
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent), #b8862e);
            color: #0d1b2a;
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 16px rgba(212, 165, 68, .3);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #fff;
        }
        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.7;
        }
        /* ===== Safety checklist ===== */
        .check-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 26px 24px;
            display: flex;
            gap: 16px;
            box-shadow: var(--shadow);
            transition: all .3s ease;
            height: 100%;
        }
        .check-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .check-icon {
            flex-shrink: 0;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(13, 27, 42, .06), rgba(13, 27, 42, .03));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary);
        }
        .check-card h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-main);
        }
        .check-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all .3s ease;
        }
        .faq-item:hover {
            border-color: rgba(212, 165, 68, .3);
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 22px 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question i {
            color: var(--accent);
            transition: transform .35s ease;
            flex-shrink: 0;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
        }
        .faq-answer p {
            padding: 0 26px 22px;
            font-size: 14.5px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(13, 27, 42, .92), rgba(20, 38, 60, .85)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            padding: 90px 0;
            text-align: center;
            color: #fff;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 14px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, .7);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 14px;
        }
        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: #93a1b8;
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            font-size: 16px;
            border-radius: 12px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .55);
            max-width: 320px;
        }
        .footer-links-title {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: all .25s ease;
        }
        .footer-links a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .07);
            margin-top: 40px;
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .4);
        }
        .footer-domain {
            color: rgba(255, 255, 255, .6);
            font-weight: 500;
        }
        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: 8px 0 40px rgba(0, 0, 0, .35);
            }
            .app-shell.sidebar-open .sidebar {
                transform: translateX(0);
            }
            .app-shell.sidebar-open .sidebar-overlay {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding-top: 0;
            }
            .page-hero {
                padding: 90px 0 70px;
                margin-top: 70px;
            }
            .mobile-header + .main-content .page-hero {
                margin-top: 0;
            }
            .section-block {
                padding: 60px 0;
            }
            .cta-section {
                padding: 70px 0;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-sub {
                font-size: 15px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .cover-img {
                height: 190px;
            }
            .step-item {
                padding-left: 66px;
            }
            .footer-links-title {
                margin-top: 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .sidebar {
                width: 260px;
            }
            .page-hero {
                padding: 70px 0 60px;
            }
            .page-hero h1 {
                font-size: 26px;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-title {
                font-size: 22px;
            }
            .feature-card {
                padding: 26px 20px;
            }
            .cover-body {
                padding: 22px 18px 26px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer p {
                padding: 14px 20px 18px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .mobile-header {
                padding: 12px 16px;
            }
            .step-item {
                padding: 28px 18px 26px 60px;
            }
            .step-num {
                left: 16px;
                width: 34px;
                height: 34px;
                font-size: 14px;
            }
        }

/* roulang page: article */
:root {
            --bg-deep: #0b1620;
            --bg-sidebar: #0d1b29;
            --bg-card: #101e2c;
            --bg-card-hover: #152a3a;
            --bg-block: #0f1e2c;
            --gold: #d4a854;
            --gold-light: #e9cf96;
            --gold-dark: #b8893a;
            --text-main: #e8edf2;
            --text-sub: #8fa6ba;
            --text-weak: #637d93;
            --border-line: rgba(212, 168, 84, 0.18);
            --border-strong: rgba(212, 168, 84, 0.35);
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
            --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.25);
            --transition: all 0.3s ease;
            --sidebar-w: 264px;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .app-shell {
            position: relative;
            min-height: 100vh;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-w);
            background: linear-gradient(180deg, #0e1d2b 0%, #08131e 100%);
            border-right: 1px solid var(--border-line);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 32px 22px 24px;
            overflow-y: auto;
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 8px 28px;
            border-bottom: 1px solid var(--border-line);
            margin-bottom: 28px;
        }

        .brand-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--gold) 0%, #a87c2e 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #0b1620;
            box-shadow: 0 6px 18px rgba(212, 168, 84, 0.3);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 17px;
            font-weight: 800;
            letter-spacing: 0.04em;
            color: var(--gold-light);
            line-height: 1.4;
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-sub);
            font-weight: 500;
            border: 1px solid transparent;
            transition: var(--transition);
            font-size: 14.5px;
            letter-spacing: 0.02em;
        }

        .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: var(--text-weak);
            transition: var(--transition);
        }

        .nav-link:hover {
            background: rgba(212, 168, 84, 0.08);
            color: var(--gold-light);
            transform: translateX(4px);
        }

        .nav-link:hover i {
            color: var(--gold);
        }

        .nav-link.active {
            background: linear-gradient(135deg, rgba(212, 168, 84, 0.18) 0%, rgba(212, 168, 84, 0.08) 100%);
            border-color: var(--border-line);
            color: var(--gold-light);
            box-shadow: 0 4px 16px rgba(212, 168, 84, 0.08);
        }

        .nav-link.active i {
            color: var(--gold);
        }

        .sidebar-tip {
            margin-top: 24px;
            padding: 18px 16px;
            background: rgba(212, 168, 84, 0.06);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-sm);
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        .sidebar-tip .tip-icon {
            color: var(--gold);
            margin-bottom: 8px;
            font-size: 18px;
        }

        /* ===== Main Wrap ===== */
        .main-wrap {
            margin-left: var(--sidebar-w);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: var(--bg-deep);
        }

        .mobile-header {
            display: none;
            position: sticky;
            top: 0;
            z-index: 900;
            background: rgba(11, 22, 32, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-line);
            padding: 14px 20px;
            align-items: center;
            gap: 14px;
        }

        .mobile-menu-btn {
            background: transparent;
            border: 1px solid var(--border-line);
            color: var(--gold-light);
            width: 40px;
            height: 40px;
            border-radius: 8px;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .mobile-menu-btn:hover {
            border-color: var(--border-strong);
            background: rgba(212, 168, 84, 0.1);
        }

        .mobile-brand {
            font-weight: 800;
            color: var(--gold-light);
            font-size: 16px;
            letter-spacing: 0.04em;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 950;
            backdrop-filter: blur(4px);
        }

        .sidebar-overlay.show {
            display: block;
        }

        /* ===== Article Banner ===== */
        .article-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            padding: 90px 0 80px;
            border-bottom: 1px solid var(--border-line);
        }

        .article-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 22, 32, 0.97) 0%, rgba(11, 22, 32, 0.88) 55%, rgba(212, 168, 84, 0.25) 100%);
        }

        .article-banner .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-row {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-row a {
            color: var(--text-sub);
        }

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

        .breadcrumb-row .sep {
            color: var(--text-weak);
        }

        .article-category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, rgba(212, 168, 84, 0.3), rgba(212, 168, 84, 0.12));
            border: 1px solid var(--border-strong);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 700;
            color: var(--gold-light);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 20px;
        }

        .article-category-badge i {
            font-size: 13px;
        }

        .article-title {
            font-size: 2.4rem;
            line-height: 1.3;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
            max-width: 860px;
            text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
            margin-bottom: 22px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            color: var(--text-sub);
            font-size: 14px;
            flex-wrap: wrap;
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta .meta-item i {
            color: var(--gold);
        }

        /* ===== Article Body ===== */
        .article-body-section {
            padding: 70px 0 60px;
        }

        .article-content-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 44px 42px;
            box-shadow: var(--shadow-sm);
        }

        .article-content {
            font-size: 16.5px;
            line-height: 1.9;
            color: #d6e0e9;
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--gold-light);
            margin: 36px 0 16px;
            padding-left: 14px;
            border-left: 3px solid var(--gold);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin: 28px 0 12px;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 20px 22px;
            color: #d6e0e9;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content strong {
            color: var(--gold-light);
        }

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

        .article-content a:hover {
            color: var(--gold-light);
        }

        .article-content blockquote {
            background: rgba(212, 168, 84, 0.08);
            border-left: 3px solid var(--gold);
            padding: 18px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 24px 0;
            color: var(--text-sub);
            font-style: italic;
        }

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

        .article-content table {
            width: 100%;
            margin: 20px 0;
            border-collapse: collapse;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 14px;
            border-bottom: 1px solid var(--border-line);
            text-align: left;
        }

        .article-content table th {
            background: rgba(212, 168, 84, 0.1);
            color: var(--gold-light);
            font-weight: 600;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 26px;
            border-top: 1px solid var(--border-line);
        }

        .article-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: rgba(212, 168, 84, 0.08);
            border: 1px solid var(--border-line);
            border-radius: 30px;
            font-size: 13px;
            color: var(--text-sub);
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            border-color: var(--border-strong);
            color: var(--gold-light);
            transform: translateY(-2px);
        }

        .article-tags .tag i {
            color: var(--gold);
            font-size: 12px;
        }

        .article-nav-pager {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border-line);
        }

        .pager-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            padding: 8px 0;
            transition: var(--transition);
        }

        .pager-link:hover {
            color: var(--gold-light);
        }

        .pager-link i {
            color: var(--gold);
        }

        .pager-link.next {
            margin-left: auto;
        }

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

        .sidebar-widget {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius);
            padding: 26px 22px;
            box-shadow: var(--shadow-sm);
        }

        .widget-title {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 16px;
            font-weight: 700;
            color: var(--gold-light);
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-line);
            margin-bottom: 18px;
        }

        .widget-title i {
            color: var(--gold);
        }

        .related-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .related-item {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(212, 168, 84, 0.08);
            transition: var(--transition);
            align-items: center;
        }

        .related-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .related-item:hover {
            transform: translateX(4px);
        }

        .related-item:hover .related-title {
            color: var(--gold-light);
        }

        .related-thumb {
            width: 68px;
            height: 52px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-card-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-line);
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .related-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 0;
        }

        .related-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .related-date {
            font-size: 12px;
            color: var(--text-weak);
        }

        .widget-cat-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .widget-cat-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            background: rgba(212, 168, 84, 0.04);
            border: 1px solid transparent;
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .widget-cat-list a:hover {
            background: rgba(212, 168, 84, 0.1);
            border-color: var(--border-line);
            color: var(--gold-light);
            transform: translateX(4px);
        }

        .widget-cat-list a i {
            color: var(--gold);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .widget-security {
            background: linear-gradient(135deg, rgba(212, 168, 84, 0.08), rgba(11, 22, 32, 0.2));
            border: 1px solid rgba(255, 200, 87, 0.2);
            padding: 22px 20px;
            border-radius: var(--radius);
        }

        .widget-security .sec-icon {
            font-size: 28px;
            color: var(--gold);
            margin-bottom: 12px;
        }

        .widget-security h4 {
            font-size: 15px;
            color: var(--gold-light);
            margin-bottom: 8px;
        }

        .widget-security p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== Not Found ===== */
        .not-found-card {
            background: var(--bg-card);
            border: 1px solid var(--border-line);
            border-radius: var(--radius-lg);
            padding: 70px 50px;
            text-align: center;
            box-shadow: var(--shadow-sm);
        }

        .not-found-card .nf-icon {
            font-size: 58px;
            color: var(--gold);
            margin-bottom: 20px;
            opacity: 0.7;
        }

        .not-found-card h2 {
            font-size: 1.6rem;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .not-found-card p {
            color: var(--text-sub);
            margin-bottom: 26px;
            font-size: 15px;
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 30px;
            background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
            color: #0b1620;
            font-weight: 700;
            border-radius: 30px;
            box-shadow: 0 8px 24px rgba(212, 168, 84, 0.3);
            transition: var(--transition);
            border: none;
        }

        .btn-back-home:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(212, 168, 84, 0.4);
            color: #0b1620;
        }

        /* ===== Safety Bar ===== */
        .safety-bar {
            background: rgba(212, 168, 84, 0.06);
            border-top: 1px solid var(--border-line);
            border-bottom: 1px solid var(--border-line);
            padding: 30px 0;
        }

        .safety-bar .grid-x {
            align-items: center;
        }

        .safety-icon-box {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .safety-icon-box .sic {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(212, 168, 84, 0.3), rgba(212, 168, 84, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--gold);
            flex-shrink: 0;
        }

        .safety-icon-box h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--gold-light);
            margin-bottom: 4px;
        }

        .safety-icon-box p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            position: relative;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 22, 32, 0.95) 0%, rgba(11, 22, 32, 0.82) 100%);
        }

        .cta-inner {
            position: relative;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            padding: 20px 0;
        }

        .cta-inner .cta-icon {
            font-size: 42px;
            color: var(--gold);
            margin-bottom: 18px;
        }

        .cta-inner h2 {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .cta-inner p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .btn-cta-main {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 15px 38px;
            background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
            color: #0b1620;
            font-weight: 700;
            font-size: 15px;
            border-radius: 30px;
            box-shadow: 0 10px 30px rgba(212, 168, 84, 0.35);
            transition: var(--transition);
            border: none;
            letter-spacing: 0.02em;
        }

        .btn-cta-main:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(212, 168, 84, 0.45);
            color: #0b1620;
        }

        .btn-cta-main i {
            font-size: 14px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 80px 0 70px;
            background: var(--bg-deep);
        }

        .section-header {
            text-align: center;
            margin-bottom: 46px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.12em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 12px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.02em;
        }

        .section-header .sub-line {
            width: 56px;
            height: 3px;
            background: linear-gradient(90deg, var(--gold), transparent);
            border-radius: 2px;
            margin: 16px auto 0;
        }

        .faq-grid {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 880px;
            margin: 0 auto;
        }

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

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

        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 24px;
            font-weight: 600;
            font-size: 15.5px;
            color: var(--text-main);
            cursor: pointer;
        }

        .faq-q .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(212, 168, 84, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--gold);
            flex-shrink: 0;
        }

        .faq-q i.fa-chevron-down {
            margin-left: auto;
            color: var(--text-weak);
            font-size: 13px;
            transition: transform 0.3s ease;
        }

        .faq-item.open .faq-q i.fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-a {
            display: none;
            padding: 0 24px 20px 66px;
            color: var(--text-sub);
            font-size: 14.5px;
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            display: block;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(180deg, #0b1620 0%, #08121c 100%);
            border-top: 1px solid var(--border-line);
            padding: 56px 0 28px;
            margin-top: auto;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 18px;
            font-weight: 800;
            color: var(--gold-light);
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            font-size: 15px;
        }

        .footer-desc {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-links-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-line);
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--gold-light);
            padding-left: 4px;
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 22px;
            border-top: 1px solid var(--border-line);
            text-align: center;
            color: var(--text-weak);
            font-size: 13px;
        }

        .footer-domain {
            color: var(--gold);
            font-weight: 500;
        }

        /* ===== Focus ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 2rem;
            }
            .article-content-card {
                padding: 32px 28px;
            }
            .article-banner {
                padding: 70px 0 60px;
            }
            .cta-inner h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
                width: 280px;
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .mobile-header {
                display: flex;
            }

            .sidebar-overlay.show {
                display: block;
            }

            .main-wrap {
                margin-left: 0;
            }

            .article-title {
                font-size: 1.6rem;
            }

            .article-banner {
                padding: 50px 0 48px;
            }

            .article-content-card {
                padding: 24px 18px;
                border-radius: var(--radius);
            }

            .article-body-section {
                padding: 40px 0 30px;
            }

            .article-content {
                font-size: 15.5px;
            }

            .article-content h2 {
                font-size: 1.25rem;
            }

            .article-meta {
                gap: 12px;
            }

            .faq-section {
                padding: 50px 0 40px;
            }

            .cta-section {
                padding: 60px 0;
                background-attachment: scroll;
            }

            .cta-inner h2 {
                font-size: 1.4rem;
            }

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

            .site-footer {
                padding: 40px 0 20px;
            }

            .footer-links-title {
                margin-top: 24px;
            }

            .article-nav-pager {
                flex-direction: column;
                gap: 0;
            }

            .pager-link.next {
                margin-left: 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 18px;
            }

            .article-title {
                font-size: 1.35rem;
            }

            .article-content-card {
                padding: 20px 16px;
            }

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

            .faq-q {
                padding: 16px 16px;
                font-size: 14px;
            }

            .faq-a {
                padding: 0 16px 16px 54px;
            }

            .safety-icon-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 10px 0;
            }

            .not-found-card {
                padding: 40px 24px;
            }

            .btn-cta-main {
                padding: 13px 26px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .footer-bottom p {
                font-size: 12px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #1c3a5e;
  --primary-dark: #122840;
  --primary-light: #2d5f8f;
  --accent: #d4a843;
  --accent-dark: #b8872a;
  --bg-main: #f6f4ef;
  --bg-white: #ffffff;
  --bg-dark: #0f1e2e;
  --text-main: #1e2933;
  --text-weak: #5c6b7a;
  --border: #e6e0d6;
  --shadow-sm: 0 2px 12px rgba(15,30,46,.06);
  --shadow-md: 0 10px 30px rgba(15,30,46,.09);
  --shadow-lg: 0 20px 50px rgba(15,30,46,.15);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --sidebar-w: 260px;
  --font-main: "PingFang SC","Microsoft YaHei","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-main);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--accent); }
button { font-family: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== App Shell / Sidebar ===== */
.app-shell { min-height: 100vh; }
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: var(--sidebar-w);
  background: linear-gradient(172deg, #15304e 0%, #0d1d30 100%);
  z-index: 60;
  display: flex;
  flex-direction: column;
  box-shadow: 2px 0 18px rgba(8,18,28,.28);
}
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 28px 24px 20px;
  color: #ffffff;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, #d4a843, #b8872a);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  color: #122840;
  flex-shrink: 0;
  box-shadow: 0 6px 16px rgba(212,168,67,.35);
}
.brand-text {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .5px;
  line-height: 1.35;
}
.sidebar-nav { flex: 1; padding: 16px 14px; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  color: #a9bad0;
  border-radius: 10px;
  margin-bottom: 5px;
  font-size: 15px;
  font-weight: 500;
  transition: background .25s ease, color .25s ease, transform .18s ease;
}
.nav-link i { width: 20px; text-align: center; font-size: 15px; flex-shrink: 0; }
.nav-link:hover {
  background: rgba(255,255,255,.08);
  color: #ffffff;
  transform: translateX(2px);
}
.nav-link.active {
  background: linear-gradient(135deg, #d4a843, #c0922f);
  color: #122840;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(212,168,67,.35);
}
.sidebar-foot {
  padding: 20px 20px 24px;
  border-top: 1px solid rgba(255,255,255,.07);
}
.sidebar-foot p {
  font-size: 12.5px;
  color: #7188a0;
  margin: 0;
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.sidebar-foot i { color: #d4a843; font-size: 13px; margin-top: 2px; }

/* ===== Main Wrap ===== */
.main-wrap {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
}
.main-content { flex: 1; }

/* ===== Mobile Topbar ===== */
.mobile-topbar {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: linear-gradient(120deg, #15304e, #0d1d30);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 55;
  box-shadow: 0 4px 14px rgba(8,18,28,.18);
}
.menu-toggle {
  background: rgba(255,255,255,.12);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  font-size: 15px;
  cursor: pointer;
  transition: background .2s ease;
}
.menu-toggle:hover { background: rgba(255,255,255,.22); }
.mobile-brand { font-weight: 700; font-size: 16px; color: #fff; }
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8,18,28,.5);
  z-index: 55;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.show { display: block; }

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 78px 0 70px;
  background: linear-gradient(70deg, rgba(10,24,38,.92) 0%, rgba(16,42,66,.78) 55%, rgba(28,58,94,.66) 100%),
              url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  border-bottom: 4px solid var(--accent);
}
.hero-content { max-width: 760px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(212,168,67,.16);
  border: 1px solid rgba(212,168,67,.45);
  color: #f0d590;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.hero-badge i { font-size: 12px; }
.page-hero h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: .5px;
}
.page-hero .hero-sub {
  font-size: 17px;
  color: rgba(255,255,255,.85);
  line-height: 1.7;
  margin: 0 0 30px;
  max-width: 640px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  line-height: 1.4;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: linear-gradient(135deg, #d4a843, #b8872a);
  color: #122840;
  box-shadow: 0 8px 24px rgba(212,168,67,.38);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(212,168,67,.48);
  color: #122840;
}
.btn-outline-light {
  background: rgba(255,255,255,.08);
  color: #fff;
  border: 1px solid rgba(255,255,255,.4);
  backdrop-filter: blur(4px);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.18);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== Sections ===== */
.section { padding: 68px 0; }
.section-alt { background: #ffffff; }
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 46px;
}
.section-kicker {
  display: inline-block;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--text-main);
  margin: 0 0 12px;
  line-height: 1.3;
}
.section-head p {
  font-size: 16px;
  color: var(--text-weak);
  margin: 0;
}

/* ===== Steps ===== */
.steps-wrap { margin-top: 10px; }
.step-card {
  position: relative;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 34px 22px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--accent);
  height: 100%;
  transition: transform .3s ease, box-shadow .3s ease;
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #d4a843, #b8872a);
  color: #122840;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 8px 20px rgba(212,168,67,.35);
}
.step-card h3 { font-size: 18px; font-weight: 700; margin: 0 0 10px; color: var(--text-main); }
.step-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin: 0; }

/* ===== Path Cards ===== */
.path-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.path-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.path-img { position: relative; height: 210px; overflow: hidden; }
.path-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.path-card:hover .path-img img { transform: scale(1.05); }
.path-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(12,22,34,.45));
}
.path-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(212,168,67,.94);
  color: #122840;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 50px;
  letter-spacing: .5px;
}
.path-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.path-body h3 { font-size: 19px; font-weight: 700; margin: 0 0 10px; color: var(--text-main); }
.path-body p { font-size: 14.5px; color: var(--text-weak); line-height: 1.75; margin: 0 0 18px; flex: 1; }
.path-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-light);
}
.path-link i { transition: transform .25s ease; }
.path-link:hover i { transform: translateX(4px); }

/* ===== Feature Cards ===== */
.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  height: 100%;
  transition: transform .3s ease, box-shadow .3s ease;
  border-top: 3px solid var(--primary);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(28,58,94,.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 17px; font-weight: 700; margin: 0 0 9px; }
.feature-card p { font-size: 14px; color: var(--text-weak); line-height: 1.7; margin: 0; }

/* ===== FAQ ===== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 14px;
  overflow: hidden;
  border: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.faq-item:hover { border-color: rgba(212,168,67,.4); box-shadow: var(--shadow-md); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: color .2s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent-dark); }
.faq-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(28,58,94,.07);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: transform .3s ease, background .3s ease, color .3s ease;
}
.faq-item[open] summary .faq-icon {
  transform: rotate(180deg);
  background: var(--accent);
  color: #122840;
}
.faq-answer { padding: 0 24px 20px; color: var(--text-weak); font-size: 14.5px; line-height: 1.8; }

/* ===== Safety Bar ===== */
.safety-section { padding: 56px 0; }
.safety-wrap {
  background: linear-gradient(120deg, #0f1e2e, #1c3a5e);
  border-radius: var(--radius-lg);
  padding: 48px 50px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.safety-wrap::before {
  content: '\f0e7';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  right: -24px;
  top: -24px;
  font-size: 170px;
  opacity: .06;
  color: #d4a843;
}
.safety-wrap h2 { font-size: 26px; font-weight: 800; margin: 0 0 10px; }
.safety-wrap > p { color: rgba(255,255,255,.78); margin: 0 0 26px; font-size: 15px; max-width: 600px; }
.safety-list { display: flex; flex-wrap: wrap; gap: 14px; margin: 0 0 30px; }
.safety-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
}
.safety-list i { color: #d4a843; }

/* ===== CTA ===== */
.cta-section { padding: 0 0 68px; }
.cta-wrap {
  background: linear-gradient(135deg, #1c3a5e, #122840);
  border-radius: var(--radius-lg);
  padding: 56px 50px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-wrap::after {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 2px solid rgba(212,168,67,.28);
  top: -160px;
  right: -80px;
}
.cta-wrap h2 { font-size: 28px; font-weight: 800; margin: 0 0 12px; }
.cta-wrap p { color: rgba(255,255,255,.8); font-size: 16px; margin: 0 auto 30px; max-width: 560px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 2; }

/* ===== Footer ===== */
.site-footer {
  background: #0d1d30;
  color: #b8c7d8;
  padding: 52px 0 0;
  margin-top: auto;
}
.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.footer-brand .brand-icon { width: 36px; height: 36px; font-size: 14px; border-radius: 10px; }
.footer-desc { font-size: 14px; color: #7f96ae; line-height: 1.7; margin: 0; max-width: 340px; }
.footer-links-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: .5px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: #93a9be;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  transition: color .25s ease, padding-left .25s ease;
}
.footer-links a:hover { color: #d4a843; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 36px;
  padding: 20px 0 24px;
  text-align: center;
  font-size: 13px;
  color: #6d8499;
}
.footer-domain { color: #93a9be; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .page-hero { padding: 60px 0 54px; }
  .page-hero h1 { font-size: 32px; }
  .section { padding: 56px 0; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform .3s ease;
    width: min(300px, 85vw);
  }
  .sidebar.open { transform: translateX(0); }
  .main-wrap { margin-left: 0; }
  .mobile-topbar { display: flex; }
  .sidebar-overlay.show { display: block; }
  .page-hero { padding: 48px 0 44px; }
  .page-hero h1 { font-size: 26px; }
  .page-hero .hero-sub { font-size: 15px; }
  .section-head h2 { font-size: 24px; }
  .cta-wrap { padding: 42px 24px; }
  .cta-wrap h2 { font-size: 24px; }
  .safety-wrap { padding: 34px 26px; }
  .step-card { padding: 28px 16px 22px; }
  .path-img { height: 180px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-actions .btn { width: 100%; justify-content: center; }
  .page-hero h1 { font-size: 23px; }
  .safety-list li { width: 100%; }
  .faq-item summary { font-size: 15px; padding: 16px 18px; }
  .section-head h2 { font-size: 21px; }
}