/* roulang page: index */
:root {
            --primary: #0f0e1a;
            --primary-light: #1a1a3e;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --accent-light: #fbbf24;
            --surface: #14132a;
            --surface-light: #1e1d3a;
            --text-primary: #ffffff;
            --text-secondary: rgba(255, 255, 255, 0.85);
            --text-muted: #9ca3af;
            --border-radius: 0.75rem;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            background: var(--primary);
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 1rem;
            }
        }
        .section-pad {
            padding: 5rem 0;
        }
        @media (max-width: 768px) {
            .section-pad {
                padding: 3rem 0;
            }
        }
        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.2;
            text-align: center;
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            font-size: 1.125rem;
            color: var(--text-muted);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 3rem auto;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.75rem;
            }
            .section-subtitle {
                font-size: 1rem;
                margin-bottom: 2rem;
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            font-weight: 600;
            font-size: 1rem;
            border-radius: 9999px;
            transition: all var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            text-align: center;
        }
        .btn-primary {
            background: var(--accent);
            color: #0f0e1a;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.3);
            color: #0f0e1a;
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border-color: rgba(255, 255, 255, 0.3);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.15);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-lg {
            padding: 1rem 2.5rem;
            font-size: 1.125rem;
        }
        .btn-sm {
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
        }
        .card {
            background: var(--surface);
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover, 0 12px 40px rgba(0, 0, 0, 0.4));
            border-color: rgba(245, 158, 11, 0.2);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img {
            transform: scale(1.03);
        }
        .badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 9999px;
            background: rgba(245, 158, 11, 0.15);
            color: var(--accent-light);
            letter-spacing: 0.02em;
        }
        .badge-surface {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-secondary);
        }
        .tag {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            font-size: 0.7rem;
            font-weight: 500;
            border-radius: 0.375rem;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .tag:hover {
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-light);
            border-color: rgba(245, 158, 11, 0.2);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }
        @media (max-width: 768px) {
            .stat-number {
                font-size: 2rem;
            }
        }
        .divider {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
            margin: 0;
        }
        .glow-line {
            width: 4rem;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
            margin: 1rem auto 0 auto;
        }
        .hero-split {
            display: flex;
            min-height: 100vh;
            background: var(--primary);
        }
        .hero-left {
            flex: 0 0 30%;
            background: var(--surface);
            padding: 2rem 2.5rem;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 2;
            border-right: 1px solid rgba(255, 255, 255, 0.04);
        }
        .hero-right {
            flex: 1;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .hero-right::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            filter: brightness(0.4) saturate(1.1);
            z-index: 0;
        }
        .hero-right::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 14, 26, 0.7) 0%, transparent 60%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
            padding: 3rem 4rem;
            text-align: left;
        }
        @media (max-width: 1024px) {
            .hero-split {
                flex-direction: column;
                min-height: auto;
            }
            .hero-left {
                flex: none;
                padding: 1rem 1.5rem;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }
            .hero-right {
                min-height: 70vh;
            }
            .hero-content {
                padding: 2.5rem 1.5rem;
                max-width: 100%;
                text-align: center;
            }
        }
        @media (max-width: 640px) {
            .hero-right {
                min-height: 60vh;
            }
            .hero-content {
                padding: 2rem 1rem;
            }
        }
        .nav-link {
            position: relative;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 0;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
            transition: width var(--transition);
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--accent);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.5rem;
            padding: 0.5rem;
            cursor: pointer;
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                flex-direction: column;
                gap: 0.5rem;
                padding: 1rem 0;
                width: 100%;
            }
            .nav-links.open {
                display: flex;
            }
            .mobile-menu-btn {
                display: block;
            }
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            padding: 1.25rem 1.5rem;
            transition: all var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.15);
            background: var(--surface-light);
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
        }
        .faq-question .icon {
            color: var(--accent);
            font-size: 1.25rem;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 1rem;
        }
        .step-card {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--surface);
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            border-color: rgba(245, 158, 11, 0.2);
            box-shadow: var(--shadow-card-hover, 0 12px 40px rgba(0, 0, 0, 0.4));
        }
        .step-number {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #0f0e1a;
            font-weight: 800;
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem auto;
        }
        .cms-list-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 1.5rem;
            background: var(--surface);
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: all var(--transition);
            align-items: flex-start;
        }
        .cms-list-item:hover {
            border-color: rgba(245, 158, 11, 0.15);
            background: var(--surface-light);
            transform: translateX(4px);
        }
        .cms-list-item .cms-thumb {
            width: 80px;
            height: 80px;
            border-radius: 0.5rem;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--primary-light);
        }
        .cms-list-item .cms-info {
            flex: 1;
            min-width: 0;
        }
        .cms-list-item .cms-title {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.5;
            transition: color var(--transition);
        }
        .cms-list-item:hover .cms-title {
            color: var(--accent-light);
        }
        .cms-list-item .cms-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
            flex-wrap: wrap;
        }
        .cms-list-item .cms-summary {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.35rem;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        @media (max-width: 640px) {
            .cms-list-item {
                flex-direction: column;
                padding: 1rem;
            }
            .cms-list-item .cms-thumb {
                width: 100%;
                height: 160px;
            }
        }
        .footer {
            background: var(--surface);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding: 3rem 0 1.5rem 0;
        }
        .footer a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
            margin-bottom: 2rem;
        }
        .footer-links a {
            font-size: 0.9rem;
        }
        .footer-copyright {
            text-align: center;
            color: var(--text-muted);
            font-size: 0.85rem;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            padding-top: 1.5rem;
        }
        .category-grid-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            display: flex;
            align-items: flex-end;
            padding: 1.5rem;
            background: var(--surface);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
        }
        .category-grid-card .bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            z-index: 0;
        }
        .category-grid-card:hover .bg-img {
            transform: scale(1.06);
        }
        .category-grid-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 14, 26, 0.85) 0%, transparent 60%);
            z-index: 1;
        }
        .category-grid-card .content {
            position: relative;
            z-index: 2;
            color: #fff;
            width: 100%;
        }
        .category-grid-card .content h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }
        .category-grid-card .content p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 3rem;
            height: 3rem;
            border-radius: 50%;
            background: var(--accent);
            color: #0f0e1a;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
            transition: all var(--transition);
            z-index: 100;
            opacity: 0;
            pointer-events: none;
        }
        .scroll-top.visible {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(245, 158, 11, 0.4);
        }
        @media (max-width: 640px) {
            .scroll-top {
                bottom: 1.25rem;
                right: 1.25rem;
                width: 2.5rem;
                height: 2.5rem;
                font-size: 1rem;
            }
        }
        .feature-card {
            padding: 2rem 1.5rem;
            background: var(--surface);
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            transition: all var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(245, 158, 11, 0.2);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
        }
        .feature-card .icon-wrap {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 1rem;
            background: rgba(245, 158, 11, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem auto;
            font-size: 1.5rem;
            color: var(--accent);
            transition: all var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: var(--accent);
            color: #0f0e1a;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .cta-section {
            background: linear-gradient(135deg, var(--surface) 0%, var(--primary-light) 100%);
            border-radius: 1.5rem;
            padding: 4rem 3rem;
            text-align: center;
            border: 1px solid rgba(245, 158, 11, 0.1);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.04);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.03);
            pointer-events: none;
        }
        @media (max-width: 768px) {
            .cta-section {
                padding: 2.5rem 1.5rem;
            }
        }
        .empty-state {
            text-align: center;
            padding: 3rem 1.5rem;
            color: var(--text-muted);
            background: var(--surface);
            border-radius: var(--border-radius);
            border: 1px dashed rgba(255, 255, 255, 0.08);
        }
        .empty-state i {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            opacity: 0.4;
        }
        .focus-ring:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        ::selection {
            background: rgba(245, 158, 11, 0.3);
            color: #fff;
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--surface-light);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent);
        }

/* roulang page: article */
:root {
            --primary: #1a2a6c;
            --primary-light: #2a3f8f;
            --primary-dark: #0f1a4a;
            --accent: #e94560;
            --accent-light: #f0607a;
            --accent-dark: #c62a44;
            --surface: #ffffff;
            --surface-alt: #f8f9fc;
            --surface-dark: #0d1117;
            --text: #111827;
            --text-light: #4b5563;
            --muted: #6b7280;
            --muted-light: #9ca3af;
            --border: #e2e8f0;
            --border-dark: #1f2937;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.1);
            --shadow-hover: 0 8px 32px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-sans); background: var(--surface-alt); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; transition: var(--transition); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        @media (max-width: 640px) { .container { padding: 0 16px; } }

        /* Header & Nav */
        .header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); background: rgba(255,255,255,0.96); }
        .header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
        .logo-text { font-size: 1.5rem; font-weight: 900; letter-spacing: -0.02em; background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; display: flex; align-items: center; gap: 8px; }
        .logo-icon { -webkit-text-fill-color: var(--accent); font-size: 1.75rem; }
        .nav-links { display: flex; gap: 4px; list-style: none; }
        .nav-links li a { padding: 8px 18px; border-radius: var(--radius-sm); font-weight: 500; color: var(--text-light); transition: var(--transition); position: relative; font-size: 1.05rem; }
        .nav-links li a:hover { color: var(--primary); background: var(--surface-alt); }
        .nav-links li a.active { color: var(--primary); background: var(--surface-alt); font-weight: 600; }
        .nav-links li a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--accent); border-radius: 4px; }
        .nav-cta { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff !important; padding: 8px 22px !important; border-radius: 50px !important; font-weight: 600 !important; box-shadow: 0 4px 16px rgba(233,69,96,0.35); }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(233,69,96,0.45) !important; background: linear-gradient(135deg, var(--accent-light), var(--accent)) !important; }
        .menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text); cursor: pointer; padding: 8px; }
        @media (max-width: 768px) {
            .menu-toggle { display: flex; align-items: center; justify-content: center; }
            .nav-links { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: var(--surface); border-bottom: 1px solid var(--border); padding: 12px 20px 20px; box-shadow: var(--shadow-lg); gap: 2px; }
            .nav-links.open { display: flex; }
            .nav-links li a { padding: 12px 16px; border-radius: var(--radius-sm); }
            .nav-links li a.active::after { display: none; }
            .nav-links li a.active { background: var(--surface-alt); border-left: 4px solid var(--accent); }
            .header .container { height: 60px; }
        }

        /* Footer */
        .footer { background: var(--surface-dark); color: #e5e7eb; padding: 48px 0 32px; margin-top: 60px; }
        .footer a { color: #9ca3af; transition: var(--transition); }
        .footer a:hover { color: #fff; }
        .footer-links { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: center; }
        .footer-links a { font-size: 0.95rem; }
        .footer-copyright { text-align: center; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; margin-top: 24px; color: var(--muted-light); font-size: 0.9rem; }
        .footer-copyright .text-muted { color: #6b7280; }

        /* Article specific */
        .article-hero { background: linear-gradient(135deg, var(--primary), #0f1a4a); padding: 60px 0 50px; position: relative; overflow: hidden; }
        .article-hero::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat; opacity: 0.12; }
        .article-hero .container { position: relative; z-index: 1; }
        .article-hero h1 { font-size: 2.4rem; font-weight: 800; color: #fff; line-height: 1.25; max-width: 900px; letter-spacing: -0.01em; }
        .article-hero .meta { display: flex; flex-wrap: wrap; gap: 16px 28px; margin-top: 20px; color: rgba(255,255,255,0.75); font-size: 0.95rem; }
        .article-hero .meta span { display: flex; align-items: center; gap: 6px; }
        .article-hero .meta i { color: var(--accent-light); }
        .article-hero .category-badge { background: var(--accent); color: #fff; padding: 4px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; display: inline-block; }
        @media (max-width: 768px) {
            .article-hero { padding: 40px 0 32px; }
            .article-hero h1 { font-size: 1.6rem; }
        }

        .article-content { padding: 48px 0 40px; }
        .article-main { background: var(--surface); border-radius: var(--radius); padding: 40px 48px; box-shadow: var(--shadow); }
        .article-body { font-size: 1.05rem; line-height: 1.85; color: var(--text); }
        .article-body p { margin-bottom: 1.2em; }
        .article-body h2 { font-size: 1.6rem; font-weight: 700; margin-top: 2em; margin-bottom: 0.6em; color: var(--primary); }
        .article-body h3 { font-size: 1.25rem; font-weight: 600; margin-top: 1.6em; margin-bottom: 0.5em; }
        .article-body ul, .article-body ol { margin: 1em 0; padding-left: 1.6em; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--accent-dark); }
        .article-body img { border-radius: var(--radius-sm); margin: 1.5em auto; box-shadow: var(--shadow); }
        .article-body blockquote { border-left: 4px solid var(--accent); padding: 12px 20px; margin: 1.5em 0; background: var(--surface-alt); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-light); font-style: italic; }
        .article-body pre { background: #1a1a2e; color: #e4e4e4; padding: 20px 24px; border-radius: var(--radius-sm); overflow-x: auto; font-size: 0.9rem; margin: 1.5em 0; }
        .article-body code { font-family: 'Fira Code', monospace; font-size: 0.9em; }
        @media (max-width: 768px) {
            .article-main { padding: 24px 20px; }
            .article-body { font-size: 1rem; }
        }

        .article-sidebar { }
        .sidebar-card { background: var(--surface); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); margin-bottom: 20px; }
        .sidebar-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--border); display: flex; align-items: center; gap: 8px; }
        .sidebar-card h3 i { color: var(--accent); }
        .sidebar-link { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--border); transition: var(--transition); }
        .sidebar-link:last-child { border-bottom: none; }
        .sidebar-link:hover { padding-left: 6px; color: var(--accent); }
        .sidebar-link img { width: 48px; height: 48px; border-radius: var(--radius-sm); object-fit: cover; flex-shrink: 0; }

        .not-found { text-align: center; padding: 80px 20px; }
        .not-found .icon { font-size: 4rem; color: var(--muted-light); margin-bottom: 20px; }
        .not-found h2 { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; }
        .not-found p { color: var(--text-light); margin-bottom: 24px; }
        .not-found a { display: inline-block; padding: 12px 32px; background: var(--accent); color: #fff; border-radius: 50px; font-weight: 600; }
        .not-found a:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

        /* Breadcrumb */
        .breadcrumb { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; padding: 16px 0; font-size: 0.9rem; color: var(--muted); }
        .breadcrumb a { color: var(--muted); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--muted-light); }
        .breadcrumb .current { color: var(--text); font-weight: 500; }

        /* Related posts grid */
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 20px; }
        .related-card { background: var(--surface); border-radius: var(--radius-sm); overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,0.04); transition: var(--transition); border: 1px solid var(--border); }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card img { width: 100%; height: 160px; object-fit: cover; }
        .related-card .body { padding: 16px 18px 18px; }
        .related-card .body h4 { font-size: 1rem; font-weight: 600; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .body .meta { font-size: 0.8rem; color: var(--muted); }
        @media (max-width: 768px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
        }

        /* Tags */
        .tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
        .tag { display: inline-block; padding: 4px 14px; background: var(--surface-alt); border: 1px solid var(--border); border-radius: 50px; font-size: 0.8rem; color: var(--text-light); transition: var(--transition); }
        .tag:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

        /* Share */
        .share-bar { display: flex; align-items: center; gap: 12px; margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border); }
        .share-bar span { font-weight: 600; color: var(--text-light); font-size: 0.95rem; }
        .share-bar a { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--surface-alt); color: var(--text-light); border: 1px solid var(--border); transition: var(--transition); }
        .share-bar a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* CTA section */
        .article-cta { background: linear-gradient(135deg, var(--primary), #0f1a4a); border-radius: var(--radius); padding: 40px 48px; text-align: center; color: #fff; margin-top: 40px; position: relative; overflow: hidden; }
        .article-cta::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; opacity: 0.08; }
        .article-cta .container { position: relative; z-index: 1; }
        .article-cta h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: 12px; }
        .article-cta p { color: rgba(255,255,255,0.8); max-width: 600px; margin: 0 auto 24px; }
        .article-cta .btn { display: inline-block; padding: 14px 40px; background: var(--accent); color: #fff; border-radius: 50px; font-weight: 600; font-size: 1.05rem; box-shadow: 0 4px 20px rgba(233,69,96,0.4); }
        .article-cta .btn:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(233,69,96,0.5); }
        @media (max-width: 640px) {
            .article-cta { padding: 28px 20px; }
            .article-cta h3 { font-size: 1.25rem; }
        }

        /* Skeleton for loading */
        .skeleton { background: linear-gradient(90deg, var(--border) 25%, #f0f0f0 50%, var(--border) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
        @keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* roulang page: category1 */
:root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --accent: #e94560;
            --accent-hover: #d63851;
            --accent-soft: #fde8ec;
            --gold: #f5a623;
            --gold-light: #fef3d6;
            --bg: #f8f9fc;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border: #e5e7eb;
            --border-light: #f0f0f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-xs);
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
        }

        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 56px 0;
            }
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--primary);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin-top: 8px;
        }
        @media (max-width: 640px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: var(--accent-soft);
            color: var(--accent);
            white-space: nowrap;
            border: 1px solid rgba(233, 69, 96, 0.15);
        }
        .badge-gold {
            background: var(--gold-light);
            color: #b8860b;
            border-color: rgba(245, 166, 35, 0.2);
        }
        .badge-primary {
            background: #e8eaf6;
            color: #3f51b5;
            border-color: rgba(63, 81, 181, 0.12);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.30);
        }
        .btn:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(233, 69, 96, 0.40);
            color: #fff;
        }
        .btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(233, 69, 96, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.25);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text);
            box-shadow: none;
            border: 1px solid var(--border);
        }
        .btn-ghost:hover {
            background: var(--bg);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
        }

        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(233, 69, 96, 0.10);
        }

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            border-radius: var(--radius) var(--radius) 0 0;
        }

        .tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 500;
            background: #f3f4f6;
            color: var(--text-muted);
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .tag:hover {
            background: var(--accent-soft);
            color: var(--accent);
            border-color: rgba(233, 69, 96, 0.15);
        }

        .divider {
            width: 100%;
            height: 1px;
            background: linear-gradient(to right, transparent, var(--border), transparent);
            margin: 16px 0;
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.1;
            color: var(--accent);
            letter-spacing: -0.02em;
        }
        @media (max-width: 640px) {
            .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== Header / Nav ===== */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(229, 231, 235, 0.5);
            transition: var(--transition);
        }
        .header.scrolled {
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
        }

        .nav-links .nav-link {
            position: relative;
            padding: 6px 4px;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            border-radius: var(--radius-xs);
        }
        .nav-links .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--accent);
            border-radius: 4px;
            transition: var(--transition);
        }
        .nav-links .nav-link:hover {
            color: var(--accent);
        }
        .nav-links .nav-link:hover::after {
            width: 100%;
        }
        .nav-links .nav-link.active {
            color: var(--accent);
            font-weight: 600;
        }
        .nav-links .nav-link.active::after {
            width: 100%;
        }

        .nav-cta-btn {
            padding: 8px 22px;
            border-radius: 50px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 2px 12px rgba(233, 69, 96, 0.25);
        }
        .nav-cta-btn:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.35);
            color: #fff;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px;
            border-radius: var(--radius-xs);
        }
        .mobile-menu-btn:hover {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            .nav-desktop {
                display: none;
            }
            .nav-mobile-open .nav-desktop {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                padding: 20px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
            }
            .nav-mobile-open .nav-links {
                flex-direction: column;
                gap: 4px;
            }
            .nav-mobile-open .nav-links .nav-link {
                padding: 10px 0;
                font-size: 1.1rem;
            }
            .nav-mobile-open .nav-cta-wrap {
                margin-top: 12px;
            }
        }
        @media (min-width: 769px) {
            .nav-desktop {
                display: flex !important;
                align-items: center;
            }
        }

        /* ===== Hero / Banner ===== */
        .hero-banner {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            overflow: hidden;
            border-radius: 0 0 2rem 2rem;
        }
        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .hero-banner .overlay-glow {
            position: absolute;
            top: -30%;
            right: -10%;
            width: 50%;
            height: 120%;
            background: radial-gradient(circle at 70% 40%, rgba(233, 69, 96, 0.20), transparent 70%);
            pointer-events: none;
        }
        .hero-banner .overlay-glow-2 {
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 40%;
            height: 80%;
            background: radial-gradient(circle at 30% 60%, rgba(245, 166, 35, 0.12), transparent 60%);
            pointer-events: none;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 20px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            color: var(--primary);
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            padding: 4px 0;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question .icon {
            font-size: 1.2rem;
            transition: var(--transition);
            flex-shrink: 0;
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-muted);
            padding: 0 20px 0 0;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 12px;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 32px;
            border-top: 4px solid var(--accent);
        }
        .footer a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer a:hover {
            color: var(--accent);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            justify-content: center;
        }
        .footer-links a {
            font-size: 0.9rem;
            font-weight: 500;
            position: relative;
            padding: 2px 0;
        }
        .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1.5px;
            background: var(--accent);
            transition: var(--transition);
            border-radius: 2px;
        }
        .footer-links a:hover::after {
            width: 100%;
        }
        .footer-copyright {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-copyright .text-muted {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--text-light);
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* ===== Utility ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-gold {
            color: var(--gold);
        }
        .bg-accent-soft {
            background: var(--accent-soft);
        }
        .bg-gold-soft {
            background: var(--gold-light);
        }

        .grid-auto-fit {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        @media (max-width: 640px) {
            .grid-auto-fit {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        .fade-in {
            animation: fadeIn 0.6s ease forwards;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .stagger-children>* {
            animation: fadeIn 0.5s ease forwards;
            opacity: 0;
        }
        .stagger-children>*:nth-child(1) {
            animation-delay: 0.05s;
        }
        .stagger-children>*:nth-child(2) {
            animation-delay: 0.12s;
        }
        .stagger-children>*:nth-child(3) {
            animation-delay: 0.19s;
        }
        .stagger-children>*:nth-child(4) {
            animation-delay: 0.26s;
        }
        .stagger-children>*:nth-child(5) {
            animation-delay: 0.33s;
        }
        .stagger-children>*:nth-child(6) {
            animation-delay: 0.40s;
        }
        .stagger-children>*:nth-child(7) {
            animation-delay: 0.47s;
        }
        .stagger-children>*:nth-child(8) {
            animation-delay: 0.54s;
        }

        .bg-pattern-dots {
            background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
            background-size: 24px 24px;
        }

        @media (max-width: 480px) {
            .hero-banner {
                min-height: 260px;
                border-radius: 0 0 1.2rem 1.2rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .btn {
                padding: 10px 24px;
                font-size: 0.88rem;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #1e2a4a;
            --primary-light: #2c3e6b;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --accent-light: #fef3c7;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            margin: 0;
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-body);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

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

        /* ===== Header & Nav ===== */
        .site-header {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--primary);
            letter-spacing: -0.02em;
        }

        .logo-link .logo-icon {
            color: var(--accent);
            font-size: 1.75rem;
        }

        .logo-link:hover {
            color: var(--primary-light);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            margin: 0;
        }

        .nav-link {
            display: block;
            padding: 10px 20px;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-muted);
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--primary);
            background: rgba(30, 42, 74, 0.06);
        }

        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(245, 158, 11, 0.12);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }

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

        .btn-search {
            background: transparent;
            border: none;
            color: var(--text-muted);
            font-size: 1.2rem;
            padding: 8px 12px;
            border-radius: var(--radius-xs);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-search:hover {
            color: var(--primary);
            background: rgba(30, 42, 74, 0.06);
        }

        .btn-cta-nav {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition);
            box-shadow: 0 2px 12px rgba(245, 158, 11, 0.3);
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .btn-cta-nav:hover {
            background: var(--accent-hover);
            box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
            transform: translateY(-1px);
        }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            padding: 8px;
            cursor: pointer;
        }

        /* ===== Hero Banner ===== */
        .hero-banner {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, #0f1a30 100%);
            min-height: 340px;
            display: flex;
            align-items: center;
            overflow: hidden;
            border-radius: 0 0 var(--radius) var(--radius);
        }

        .hero-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }

        .hero-banner .container {
            position: relative;
            z-index: 2;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 158, 11, 0.18);
            color: var(--accent);
            padding: 6px 18px;
            border-radius: 60px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(245, 158, 11, 0.25);
            margin-bottom: 20px;
        }

        .hero-title {
            font-size: clamp(2.2rem, 6vw, 3.6rem);
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .hero-title .highlight {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            margin-top: 12px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat-number .accent {
            color: var(--accent);
        }

        .hero-stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-hover);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 4px 16px;
            border-radius: 60px;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto;
        }

        /* ===== Card Grid ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }

        .card-grid-4 {
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        }

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

        .benefit-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--accent);
        }

        .benefit-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
            background: #f1f5f9;
        }

        .benefit-card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .benefit-card-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--accent-hover);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 60px;
            margin-bottom: 10px;
            width: fit-content;
        }

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

        .benefit-card-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 16px;
        }

        .benefit-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 12px;
            border-top: 1px solid var(--border);
        }

        .benefit-card-meta .date {
            font-size: 0.85rem;
            color: var(--text-light);
        }

        .benefit-card-meta .btn-sm {
            background: var(--primary);
            color: #fff;
            padding: 6px 18px;
            border-radius: 60px;
            font-size: 0.85rem;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
        }

        .benefit-card-meta .btn-sm:hover {
            background: var(--primary-light);
            transform: scale(1.02);
        }

        /* ===== 分类Tabs ===== */
        .category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .category-tab {
            padding: 10px 24px;
            border-radius: 60px;
            font-weight: 500;
            font-size: 0.95rem;
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-muted);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .category-tab:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: var(--accent-light);
        }

        .category-tab.active {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            box-shadow: 0 2px 12px rgba(245, 158, 11, 0.3);
        }

        /* ===== 特权板块 ===== */
        .privilege-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 24px;
        }

        .privilege-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .privilege-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: var(--accent);
        }

        .privilege-icon {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 16px;
            display: block;
        }

        .privilege-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .privilege-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        /* ===== CTA板块 ===== */
        .cta-block {
            background: linear-gradient(135deg, var(--primary) 0%, #0f1a30 100%);
            border-radius: var(--radius);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }

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

        .cta-block h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            padding: 16px 40px;
            border-radius: 60px;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 24px rgba(245, 158, 11, 0.35);
            border: none;
            cursor: pointer;
        }

        .btn-cta-large:hover {
            background: var(--accent-hover);
            box-shadow: 0 6px 32px rgba(245, 158, 11, 0.5);
            transform: translateY(-2px);
        }

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

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

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

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            transition: var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            background: rgba(245, 158, 11, 0.04);
        }

        .faq-question .icon {
            color: var(--accent);
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: var(--transition);
        }

        .faq-item.open .faq-question .icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            display: none;
        }

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

        /* ===== Footer ===== */
        .footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer .container {
            text-align: center;
        }

        .footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 24px;
            margin: 16px 0;
        }

        .footer .footer-links a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            font-size: 0.95rem;
            transition: var(--transition);
        }

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

        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-copyright .text-muted {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.4rem;
            }
            .hero-stats {
                gap: 20px 32px;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                height: 62px;
            }

            .mobile-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 62px;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
                font-size: 1.05rem;
            }

            .nav-link.active::after {
                display: none;
            }

            .header-actions .btn-cta-nav {
                display: none;
            }

            .header-actions .btn-search {
                font-size: 1.1rem;
            }

            .hero-banner {
                min-height: 280px;
            }
            .hero-banner .container {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 16px 24px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }

            .section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }

            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .card-grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .privilege-grid {
                grid-template-columns: 1fr 1fr;
            }

            .cta-block {
                padding: 36px 20px;
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .btn-cta-large {
                padding: 14px 28px;
                font-size: 1rem;
            }

            .footer {
                padding: 32px 0 24px;
            }
            .footer .footer-links {
                gap: 6px 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-title {
                font-size: 1.5rem;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .hero-stat {
                flex-direction: row;
                align-items: baseline;
                gap: 8px;
            }
            .hero-stat-number {
                font-size: 1.3rem;
            }
            .card-grid-4 {
                grid-template-columns: 1fr;
            }
            .privilege-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .category-tabs {
                gap: 6px;
            }
            .category-tab {
                padding: 6px 16px;
                font-size: 0.85rem;
            }
            .benefit-card-body {
                padding: 16px 18px 18px;
            }
            .cta-block {
                padding: 28px 16px;
                border-radius: var(--radius-sm);
            }
            .btn-cta-large {
                padding: 12px 24px;
                font-size: 0.95rem;
                width: 100%;
                justify-content: center;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
            }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }
        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }

        /* ===== 额外辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .bg-accent-light {
            background: var(--accent-light);
        }
        .border-accent {
            border-color: var(--accent);
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 12px;
        }
        .gap-4 {
            gap: 16px;
        }
        .mt-1 {
            margin-top: 4px;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 12px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .mb-1 {
            margin-bottom: 4px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 12px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .mb-6 {
            margin-bottom: 24px;
        }
        .mb-8 {
            margin-bottom: 32px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .flex {
            display: flex;
        }
        .flex-col {
            flex-direction: column;
        }
        .items-center {
            align-items: center;
        }
        .justify-between {
            justify-content: space-between;
        }
        .justify-center {
            justify-content: center;
        }
        .gap-1 {
            gap: 4px;
        }
        .w-full {
            width: 100%;
        }
        .text-center {
            text-align: center;
        }
        .text-xs {
            font-size: 0.75rem;
        }
        .text-sm {
            font-size: 0.875rem;
        }
        .text-lg {
            font-size: 1.125rem;
        }
        .text-xl {
            font-size: 1.25rem;
        }
        .text-2xl {
            font-size: 1.5rem;
        }
        .font-bold {
            font-weight: 700;
        }
        .font-extrabold {
            font-weight: 800;
        }
        .font-semibold {
            font-weight: 600;
        }
        .font-medium {
            font-weight: 500;
        }
        .leading-relaxed {
            line-height: 1.7;
        }
        .rounded-full {
            border-radius: 9999px;
        }
        .rounded-lg {
            border-radius: var(--radius-sm);
        }
        .shadow-sm {
            box-shadow: var(--shadow-sm);
        }
        .shadow-md {
            box-shadow: var(--shadow-md);
        }
        .border {
            border: 1px solid var(--border);
        }
        .bg-white {
            background: #fff;
        }
        .bg-gray-50 {
            background: #f8fafc;
        }
        .bg-gray-100 {
            background: #f1f5f9;
        }
        .text-gray-500 {
            color: var(--text-muted);
        }
        .text-gray-400 {
            color: var(--text-light);
        }
        .text-gray-700 {
            color: var(--text-main);
        }
        .text-gray-800 {
            color: var(--primary);
        }
        .mx-auto {
            margin-left: auto;
            margin-right: auto;
        }
        .max-w-2xl {
            max-width: 672px;
        }
        .max-w-3xl {
            max-width: 768px;
        }
        .max-w-4xl {
            max-width: 896px;
        }
        .object-cover {
            object-fit: cover;
        }
        .object-center {
            object-position: center;
        }
        .hidden {
            display: none;
        }
        .block {
            display: block;
        }
        .inline-block {
            display: inline-block;
        }
        .inline-flex {
            display: inline-flex;
        }
        .no-underline {
            text-decoration: none;
        }
        .transition {
            transition: var(--transition);
        }
        .cursor-pointer {
            cursor: pointer;
        }
        .list-none {
            list-style: none;
        }
        .p-0 {
            padding: 0;
        }
        .m-0 {
            margin: 0;
        }
        .truncate {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        @media (min-width: 769px) {
            .md\\:flex {
                display: flex;
            }
            .md\\:flex-row {
                flex-direction: row;
            }
            .md\\:items-center {
                align-items: center;
            }
            .md\\:justify-between {
                justify-content: space-between;
            }
            .md\\:text-left {
                text-align: left;
            }
            .md\\:w-auto {
                width: auto;
            }
            .md\\:gap-6 {
                gap: 24px;
            }
            .md\\:mb-0 {
                margin-bottom: 0;
            }
            .md\\:mt-0 {
                margin-top: 0;
            }
        }