/* roulang page: index */
:root {
            --bg-base: #0B1220;
            --bg-elevated: #111B2E;
            --bg-sunken: #08101C;
            --primary: #38E1D8;
            --primary-strong: #17BFB6;
            --primary-glow: rgba(56, 225, 216, 0.35);
            --secondary: #F59E0B;
            --text-high: #F1F5F9;
            --text-mid: #9AA8BC;
            --text-low: #66788F;
            --line: #1F2B3D;
            --line-glow: rgba(56, 225, 216, 0.25);
            --glass-bg: rgba(17, 27, 46, 0.65);
            --glass-blur: blur(12px);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 8px 24px rgba(4, 12, 24, 0.45);
            --shadow-glow: 0 0 18px rgba(56, 225, 216, 0.25);
            --space-section: 80px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-high);
            line-height: 1.6;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease-out;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-site {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-site {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .section-space {
            padding: 48px 0;
        }
        @media (min-width: 768px) {
            .section-space {
                padding: 80px 0;
            }
        }
        .nav-site {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border-bottom: 1px solid var(--line);
            transition: background 0.3s ease;
        }
        @media (min-width: 768px) {
            .nav-site {
                height: 72px;
            }
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo-text {
            display: flex;
            align-items: center;
            gap: 4px;
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.02em;
            color: var(--text-high);
            outline: none;
        }
        .logo-text .logo-mk {
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: 800;
        }
        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.18);
            border: 1px solid rgba(245, 158, 11, 0.5);
            color: var(--secondary);
            font-size: 10px;
            font-weight: 700;
            margin-left: 6px;
            flex-shrink: 0;
        }
        .nav-links {
            display: none;
            align-items: center;
            gap: 28px;
            height: 100%;
        }
        @media (min-width: 768px) {
            .nav-links {
                display: flex;
            }
        }
        .nav-links a {
            font-size: 0.925rem;
            color: var(--text-mid);
            font-weight: 500;
            padding: 8px 2px;
            border-bottom: 2px solid transparent;
            height: 100%;
            display: inline-flex;
            align-items: center;
            min-height: 40px;
            transition: color 0.2s ease, border-color 0.2s ease;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }
        .nav-cta {
            display: none;
            align-items: center;
            gap: 14px;
        }
        @media (min-width: 768px) {
            .nav-cta {
                display: flex;
            }
        }
        .countdown-tag {
            font-size: 0.8rem;
            color: var(--secondary);
            border: 1px solid rgba(245, 158, 11, 0.35);
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            background: rgba(245, 158, 11, 0.06);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }
        .countdown-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .btn-primary {
            background: var(--primary);
            color: #0B1220;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 0.925rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: box-shadow 0.25s ease-out, transform 0.25s ease-out, background 0.25s ease-out, outline 0.2s;
            box-shadow: var(--shadow-glow);
            border: 1px solid transparent;
            min-height: 40px;
            letter-spacing: 0.03em;
        }
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(56, 225, 216, 0.45);
            transform: translateY(-1px);
            background: var(--primary-strong);
            color: #0B1220;
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid var(--line-glow);
            color: var(--primary);
            font-weight: 500;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            font-size: 0.925rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: background 0.2s ease-out, border-color 0.2s ease-out, transform 0.2s ease-out;
            min-height: 40px;
        }
        .btn-secondary:hover {
            background: rgba(56, 225, 216, 0.08);
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-1px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-ghost {
            background: transparent;
            color: var(--text-mid);
            padding: 10px 16px;
            border-radius: var(--radius-btn);
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: color 0.2s ease, background 0.2s ease;
            min-height: 40px;
            border: 1px solid transparent;
        }
        .btn-ghost:hover {
            color: var(--primary);
            background: rgba(56, 225, 216, 0.06);
        }
        .btn-ghost:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .mob-trigger {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            color: var(--text-high);
            border-radius: 8px;
            font-size: 1.2rem;
            border: 1px solid var(--line);
        }
        @media (min-width: 768px) {
            .mob-trigger {
                display: none;
            }
        }
        .mob-overlay {
            position: fixed;
            inset: 0;
            background: rgba(11, 18, 32, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 200;
            display: flex;
            flex-direction: column;
            padding: 96px 28px 40px;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s;
        }
        .mob-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        .mob-overlay a.mob-link {
            font-size: 1.2rem;
            color: var(--text-mid);
            padding: 16px 0;
            border-bottom: 1px solid var(--line);
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .mob-overlay a.mob-link:hover {
            color: var(--primary);
        }
        .mob-overlay a.mob-link.active {
            color: var(--primary);
        }
        .mob-overlay .btn-primary {
            margin-top: 24px;
            width: 100%;
        }
        .hero-section {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 40%;
            padding-top: 100px;
            padding-bottom: 72px;
            overflow: hidden;
        }
        @media (min-width: 768px) {
            .hero-section {
                min-height: 600px;
                padding-top: 120px;
                padding-bottom: 80px;
            }
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 18, 32, 0.94) 0%, rgba(11, 18, 32, 0.82) 40%, rgba(11, 18, 32, 0.45) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11, 18, 32, 0.75) 0%, transparent 25%);
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--secondary);
            border: 1px solid rgba(245, 158, 11, 0.3);
            background: rgba(245, 158, 11, 0.08);
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 22px;
        }
        .hero-tag .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
        }
        .hero-title {
            font-size: 2.25rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: 0.02em;
            color: var(--text-high);
            margin-bottom: 20px;
        }
        @media (min-width: 768px) {
            .hero-title {
                font-size: 3rem;
            }
        }
        @media (min-width: 1024px) {
            .hero-title {
                font-size: 3.5rem;
            }
        }
        .hero-title .mk-highlight {
            color: var(--primary);
        }
        .hero-sub {
            font-size: 1.05rem;
            color: var(--text-mid);
            line-height: 1.75;
            margin-bottom: 32px;
            max-width: 540px;
        }
        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }
        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .glass-chip {
            background: rgba(17, 27, 46, 0.55);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid var(--line-glow);
            border-radius: var(--radius-tag);
            padding: 8px 16px;
            font-size: 0.82rem;
            color: var(--text-mid);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .glass-chip .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #10B981;
            box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
        }
        .glass-chip .num {
            color: var(--text-high);
            font-weight: 600;
        }
        .hero-ring {
            position: absolute;
            right: 4%;
            bottom: 12%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            border: 1px solid var(--line-glow);
            box-shadow: var(--shadow-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
            opacity: 0.7;
            animation: float 6s ease-in-out infinite;
        }
        @media (max-width: 768px) {
            .hero-ring {
                display: none;
            }
        }
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-12px); }
        }
        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .section-head .section-label {
            font-size: 0.8rem;
            color: var(--secondary);
            letter-spacing: 0.12em;
            text-transform: uppercase;
            margin-bottom: 8px;
            font-weight: 500;
            display: block;
        }
        .section-head h2 {
            font-size: 1.7rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-high);
            letter-spacing: 0.02em;
        }
        @media (min-width: 768px) {
            .section-head h2 {
                font-size: 2rem;
            }
        }
        .section-head .section-desc {
            color: var(--text-mid);
            font-size: 0.9rem;
            max-width: 320px;
            margin-top: 6px;
        }
        .section-link {
            color: var(--text-mid);
            font-size: 0.875rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s;
            min-height: 40px;
        }
        .section-link:hover {
            color: var(--primary);
        }
        .section-link i {
            font-size: 0.75rem;
            transition: transform 0.2s;
        }
        .section-link:hover i {
            transform: translateX(3px);
        }
        .toc-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }
        @media (min-width: 1024px) {
            .toc-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        .toc-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.25s ease-out, box-shadow 0.25s ease-out, border-color 0.25s ease-out;
            display: flex;
            flex-direction: column;
        }
        .toc-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(4, 12, 24, 0.5);
            border-color: var(--line-glow);
        }
        .toc-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-sunken);
        }
        .toc-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease-out;
        }
        .toc-card:hover .card-image img {
            transform: scale(1.05);
        }
        .toc-card .card-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 18, 32, 0.45) 100%);
        }
        .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tag-row {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .tag-card {
            font-size: 0.72rem;
            color: var(--primary);
            background: rgba(56, 225, 216, 0.1);
            border: 1px solid rgba(56, 225, 216, 0.25);
            border-radius: var(--radius-tag);
            padding: 3px 10px;
            letter-spacing: 0.02em;
            font-weight: 500;
        }
        .tag-update {
            font-size: 0.7rem;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .tag-update::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--secondary);
            display: inline-block;
        }
        .card-title {
            font-size: 1rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text-high);
            margin-bottom: 8px;
            transition: color 0.2s;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .toc-card:hover .card-title {
            color: var(--primary);
        }
        .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 12px;
        }
        .card-date {
            font-size: 0.78rem;
            color: var(--text-low);
        }
        .card-arrow {
            color: var(--text-low);
            font-size: 0.85rem;
            transition: transform 0.25s ease-out, color 0.25s ease-out;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(56, 225, 216, 0.06);
        }
        .toc-card:hover .card-arrow {
            color: var(--primary);
            transform: translateX(4px);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 18px;
        }
        @media (min-width: 768px) {
            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .feature-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: border-color 0.25s, box-shadow 0.25s;
            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 70%);
            opacity: 0.6;
        }
        .feature-card:hover {
            border-color: var(--line-glow);
            box-shadow: var(--shadow-card);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(56, 225, 216, 0.1);
            border: 1px solid rgba(56, 225, 216, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-mid);
            line-height: 1.7;
        }
        .feature-card .feature-link {
            margin-top: 16px;
            font-size: 0.85rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }
        .feature-card .feature-link:hover {
            gap: 10px;
        }
        .news-section {
            background: var(--bg-sunken);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .news-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
        }
        @media (min-width: 1024px) {
            .news-layout {
                grid-template-columns: 2fr 1fr;
                gap: 40px;
            }
        }
        .news-list-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--line);
            transition: background 0.15s;
        }
        .news-list-item:last-child {
            border-bottom: none;
        }
        .news-date {
            text-align: center;
            background: rgba(56, 225, 216, 0.06);
            border: 1px solid rgba(56, 225, 216, 0.15);
            border-radius: 10px;
            padding: 8px 14px;
            flex-shrink: 0;
            min-width: 64px;
            transition: border-color 0.2s;
        }
        .news-list-item:hover .news-date {
            border-color: var(--primary);
        }
        .news-date .month {
            font-size: 0.7rem;
            color: var(--text-low);
            letter-spacing: 0.1em;
            display: block;
        }
        .news-date .day {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h4 {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-high);
            margin-bottom: 4px;
            line-height: 1.5;
            transition: color 0.2s;
            display: block;
        }
        .news-content h4:hover {
            color: var(--primary);
        }
        .news-content p {
            font-size: 0.84rem;
            color: var(--text-mid);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-cat-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 6px;
            flex-wrap: wrap;
        }
        .news-cat {
            font-size: 0.72rem;
            color: var(--text-mid);
            border: 1px solid var(--line);
            border-radius: var(--radius-tag);
            padding: 2px 10px;
            transition: color 0.2s, border-color 0.2s;
        }
        .news-list-item:hover .news-cat {
            color: var(--primary);
            border-color: var(--line-glow);
        }
        .news-list-item .news-arrow {
            color: var(--text-low);
            align-self: center;
            transition: transform 0.2s, color 0.2s;
        }
        .news-list-item:hover .news-arrow {
            color: var(--primary);
            transform: translateX(4px);
        }
        .news-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .side-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-title i {
            color: var(--primary);
            font-size: 0.9rem;
        }
        .side-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
            transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
            cursor: pointer;
        }
        .side-card:hover {
            border-color: var(--line-glow);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
        }
        .side-card .side-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(56, 225, 216, 0.1);
            border: 1px solid rgba(56, 225, 216, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .side-card h5 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 4px;
        }
        .side-card p {
            font-size: 0.8rem;
            color: var(--text-mid);
            line-height: 1.5;
        }
        .side-card .side-arrow {
            margin-left: auto;
            color: var(--text-low);
            align-self: center;
            font-size: 0.8rem;
            transition: color 0.2s, transform 0.2s;
        }
        .side-card:hover .side-arrow {
            color: var(--primary);
            transform: translateX(3px);
        }
        .empty-notice {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-mid);
            font-size: 0.95rem;
            background: rgba(17, 27, 46, 0.5);
            border: 1px dashed var(--line);
            border-radius: var(--radius-card);
            margin: 10px 0;
        }
        .faq-section {
            background: var(--bg-base);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
        }
        @media (min-width: 768px) {
            .faq-layout {
                grid-template-columns: 1fr 1.5fr;
                gap: 48px;
            }
        }
        .faq-left .section-head {
            margin-bottom: 0;
        }
        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s;
        }
        .faq-item.active {
            border-color: var(--line-glow);
        }
        .faq-question {
            padding: 18px 20px;
            font-size: 0.98rem;
            font-weight: 500;
            color: var(--text-high);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: color 0.2s;
            min-height: 48px;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--line-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: var(--primary);
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(56, 225, 216, 0.1);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease-out;
            background: var(--bg-sunken);
            border-radius: 0 0 12px 12px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.875rem;
            color: var(--text-mid);
            line-height: 1.75;
        }
        .cta-save {
            background: rgba(17, 27, 46, 0.65);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--line-glow);
            border-radius: 20px;
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 24px;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        @media (min-width: 768px) {
            .cta-save {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 44px 48px;
            }
        }
        .cta-save::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(56, 225, 216, 0.12), transparent 70%);
            pointer-events: none;
        }
        .cta-save-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(56, 225, 216, 0.12);
            border: 1px solid rgba(56, 225, 216, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .cta-save-text h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
            letter-spacing: 0.02em;
        }
        .cta-save-text p {
            font-size: 0.9rem;
            color: var(--text-mid);
        }
        .cta-save-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            position: relative;
            z-index: 2;
        }
        .footer-site {
            background: var(--bg-sunken);
            border-top: 1px solid var(--line);
            padding-top: 56px;
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 48px;
            }
        }
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 12px;
        }
        .footer-logo .mk {
            color: var(--primary);
            font-size: 1.45rem;
            font-weight: 800;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-low);
            line-height: 1.7;
            margin-bottom: 12px;
            max-width: 300px;
        }
        .footer-icp {
            font-size: 0.75rem;
            color: var(--text-low);
            opacity: 0.8;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 16px;
            letter-spacing: 0.05em;
        }
        .footer-links {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-mid);
            transition: color 0.2s, padding-left 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            min-height: 32px;
        }
        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-links a i {
            font-size: 0.6rem;
            color: var(--text-low);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 20px;
            text-align: center;
        }
        .footer-copyright {
            font-size: 0.75rem;
            color: var(--text-low);
        }
        .mobile-float {
            position: fixed;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(17, 27, 46, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--line-glow);
            border-radius: 14px;
            padding: 10px 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            z-index: 90;
            box-shadow: var(--shadow-card);
            display: none;
        }
        @media (max-width: 767px) {
            .mobile-float {
                display: flex;
            }
        }
        .mobile-float .float-btn {
            flex: 1;
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 0.82rem;
            text-align: center;
            color: var(--text-mid);
            border: 1px solid var(--line);
            transition: color 0.2s, border-color 0.2s;
            min-height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }
        .mobile-float .float-btn:hover {
            color: var(--primary);
            border-color: var(--line-glow);
        }
        .mobile-float .float-btn.primary {
            background: var(--primary);
            color: #0B1220;
            border-color: transparent;
            font-weight: 600;
        }
        .scroll-top {
            position: fixed;
            right: 20px;
            bottom: 80px;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            color: var(--text-mid);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            z-index: 80;
            opacity: 0;
            transition: opacity 0.3s, color 0.2s, border-color 0.2s;
            pointer-events: none;
        }
        .scroll-top.show {
            opacity: 1;
            pointer-events: auto;
        }
        .scroll-top:hover {
            color: var(--primary);
            border-color: var(--primary);
        }
        @media (min-width: 768px) {
            .scroll-top {
                display: none;
            }
        }
        .faq-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-mid);
            font-size: 0.85rem;
            margin-top: 16px;
            transition: color 0.2s;
        }
        .faq-more-link:hover {
            color: var(--primary);
        }
        .link-external {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-style: dotted;
            text-underline-offset: 4px;
        }

/* roulang page: category1 */
:root {
            --bg-base: #0B1220;
            --bg-elevated: #111B2E;
            --bg-sunken: #08101C;
            --primary: #38E1D8;
            --primary-strong: #17BFB6;
            --primary-glow: rgba(56, 225, 216, 0.35);
            --secondary: #F59E0B;
            --text-high: #F1F5F9;
            --text-mid: #9AA8BC;
            --text-low: #66788F;
            --line: #1F2B3D;
            --line-glow: rgba(56, 225, 216, 0.25);
            --glass-bg: rgba(17, 27, 46, 0.65);
            --glass-blur: blur(12px);
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 8px 24px rgba(4, 12, 24, 0.45);
            --shadow-glow: 0 0 18px rgba(56, 225, 216, 0.25);
            --space-section: 80px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-high);
            line-height: 1.75;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        @media (min-width: 640px) {
            .container-site {
                padding: 0 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-site {
                padding: 0 2rem;
            }
        }

        .text-primary {
            color: var(--primary);
        }
        .text-secondary {
            color: var(--secondary);
        }
        .text-mid {
            color: var(--text-mid);
        }
        .text-low {
            color: var(--text-low);
        }

        .section-site {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        @media (min-width: 768px) {
            .section-site {
                padding-top: 80px;
                padding-bottom: 80px;
            }
        }
        .section-alt {
            background: linear-gradient(to bottom, var(--bg-sunken), var(--bg-base));
        }
        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--primary);
            background: rgba(56, 225, 216, 0.1);
            border: 1px solid var(--line-glow);
            border-radius: var(--radius-tag);
            padding: 0.2rem 0.75rem;
            margin-bottom: 0.6rem;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: var(--text-high);
            margin-bottom: 0.4rem;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2rem;
            }
        }
        .section-desc {
            color: var(--text-mid);
            font-size: 0.95rem;
            max-width: 560px;
        }
        .section-head {
            margin-bottom: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 1rem;
        }

        /* ===== 导航 ===== */
        .nav-site {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border-bottom: 1px solid var(--line);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }
        .logo-text {
            display: flex;
            align-items: center;
            gap: 0.35rem;
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.02em;
            color: var(--text-high);
            white-space: nowrap;
        }
        .logo-mk {
            color: var(--primary);
            font-size: 1.5rem;
            font-weight: 800;
        }
        .logo-badge {
            background: var(--secondary);
            color: #0B1220;
            font-size: 0.65rem;
            font-weight: 700;
            border-radius: var(--radius-tag);
            padding: 0.1rem 0.45rem;
            margin-left: 0.15rem;
        }
        .nav-links {
            display: flex;
            gap: 1.75rem;
            align-items: center;
        }
        .nav-links a {
            font-size: 0.95rem;
            color: var(--text-mid);
            font-weight: 500;
            padding: 0.25rem 0;
            position: relative;
            transition: color 0.25s ease;
        }
        .nav-links a:hover {
            color: var(--text-high);
        }
        .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 2px;
            background: var(--primary);
            border-radius: 999px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .countdown-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.75rem;
            color: var(--secondary);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: var(--radius-tag);
            padding: 0.22rem 0.75rem;
            white-space: nowrap;
        }
        .countdown-tag .dot {
            width: 6px;
            height: 6px;
            background: var(--secondary);
            border-radius: 999px;
            flex-shrink: 0;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--primary);
            color: #0B1220;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: var(--radius-btn);
            padding: 0.55rem 1.25rem;
            box-shadow: var(--shadow-glow);
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(56, 225, 216, 0.45);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--line-glow);
            font-size: 0.9rem;
            font-weight: 500;
            border-radius: var(--radius-btn);
            padding: 0.55rem 1.25rem;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(56, 225, 216, 0.08);
            border-color: var(--primary);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .mob-trigger {
            display: none;
            background: none;
            border: none;
            color: var(--text-high);
            font-size: 1.3rem;
            cursor: pointer;
            padding: 0.5rem;
            line-height: 1;
        }
        .mob-trigger:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        @media (max-width: 768px) {
            .nav-links,
            .nav-cta {
                display: none;
            }
            .mob-trigger {
                display: block;
            }
            .nav-mobile-open .nav-links {
                display: flex;
                position: fixed;
                inset: 0;
                background: var(--bg-base);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 2rem;
                z-index: 99;
                font-size: 1.25rem;
            }
            .nav-mobile-open .nav-links a {
                font-size: 1.2rem;
                color: var(--text-mid);
            }
            .nav-mobile-open .nav-links a.active {
                color: var(--primary);
            }
            .nav-mobile-open .nav-cta {
                display: flex;
                position: fixed;
                bottom: 3rem;
                left: 50%;
                transform: translateX(-50%);
                z-index: 100;
            }
            .nav-mobile-open .mob-trigger {
                position: relative;
                z-index: 101;
            }
        }

        /* ===== Hero ===== */
        .hero-cat {
            min-height: 40vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 120px 0 64px;
            background-image: linear-gradient(to right, rgba(11, 18, 32, 0.97) 25%, rgba(11, 18, 32, 0.8) 60%, rgba(11, 18, 32, 0.5)),
                url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--line);
        }
        .hero-cat-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.45rem;
            font-size: 0.85rem;
            color: var(--text-low);
            margin-bottom: 1.25rem;
        }
        .breadcrumb a {
            color: var(--text-mid);
            transition: color 0.25s ease;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-low);
            opacity: 0.6;
        }
        .hero-cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--secondary);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: var(--radius-tag);
            padding: 0.22rem 0.8rem;
            margin-bottom: 1.1rem;
            background: rgba(11, 18, 32, 0.4);
            backdrop-filter: blur(6px);
        }
        .hero-cat-tag .dot {
            width: 6px;
            height: 6px;
            background: var(--secondary);
            border-radius: 999px;
        }
        .hero-cat-title {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: 0.02em;
            color: var(--text-high);
            margin-bottom: 1rem;
        }
        @media (min-width: 768px) {
            .hero-cat-title {
                font-size: 3rem;
            }
        }
        .hero-cat-desc {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-mid);
            max-width: 640px;
            margin-bottom: 1.75rem;
        }
        @media (min-width: 768px) {
            .hero-cat-desc {
                font-size: 1.1rem;
            }
        }
        .hero-cat-cta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.85rem;
            align-items: center;
        }

        /* ===== 指南目录卡 ===== */
        .card-guide {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .card-guide:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(4, 12, 24, 0.5);
            border-color: var(--line-glow);
        }
        .card-guide-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-sunken);
        }
        .card-guide-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .card-guide:hover .card-guide-img img {
            transform: scale(1.05);
        }
        .card-guide-label {
            position: absolute;
            top: 0.75rem;
            left: 0.75rem;
            background: rgba(11, 18, 32, 0.7);
            backdrop-filter: blur(6px);
            color: var(--primary);
            font-size: 0.72rem;
            font-weight: 600;
            border-radius: var(--radius-tag);
            padding: 0.18rem 0.6rem;
            border: 1px solid var(--line-glow);
        }
        .card-guide-body {
            padding: 1.1rem 1.2rem 1.2rem;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            flex: 1;
        }
        .card-guide-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.72rem;
            color: var(--secondary);
            gap: 0.3rem;
        }
        .card-guide-tag .dot {
            width: 5px;
            height: 5px;
            background: var(--secondary);
            border-radius: 999px;
        }
        .card-guide-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-high);
            line-height: 1.45;
            transition: color 0.25s ease;
        }
        .card-guide:hover .card-guide-title {
            color: var(--primary);
        }
        .card-guide-desc {
            font-size: 0.85rem;
            color: var(--text-mid);
            line-height: 1.7;
            flex: 1;
        }
        .card-guide-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0.65rem;
            font-size: 0.78rem;
            color: var(--text-low);
        }
        .card-guide-foot .arrow {
            color: var(--primary);
            transition: transform 0.25s ease;
        }
        .card-guide:hover .card-guide-foot .arrow {
            transform: translateX(4px);
        }

        /* ===== 价值卡 ===== */
        .card-value {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 1.75rem 1.5rem;
            text-align: center;
            transition: border-color 0.3s ease, transform 0.3s ease;
            height: 100%;
        }
        .card-value:hover {
            border-color: var(--line-glow);
            transform: translateY(-4px);
        }
        .card-value-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 1rem;
            border-radius: 14px;
            background: rgba(56, 225, 216, 0.1);
            border: 1px solid var(--line-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
        }
        .card-value-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 0.5rem;
        }
        .card-value-desc {
            font-size: 0.88rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== 步骤 ===== */
        .step-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 1.5rem 1.25rem;
            position: relative;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            height: 100%;
        }
        .step-card:hover {
            border-color: var(--line-glow);
            box-shadow: var(--shadow-card);
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 999px;
            background: var(--primary);
            color: #0B1220;
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
        }
        .step-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 0.35rem;
        }
        .step-desc {
            font-size: 0.85rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== 场景 ===== */
        .scene-card {
            display: flex;
            gap: 0.85rem;
            align-items: flex-start;
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 1.15rem 1.2rem;
            transition: border-color 0.3s ease, background 0.3s ease;
        }
        .scene-card:hover {
            border-color: var(--line-glow);
            background: rgba(17, 27, 46, 0.8);
        }
        .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(56, 225, 216, 0.1);
            border: 1px solid var(--line-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .scene-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 0.2rem;
        }
        .scene-card-desc {
            font-size: 0.82rem;
            color: var(--text-mid);
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: 12px;
            overflow: hidden;
            margin-bottom: 0.85rem;
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--line-glow);
        }
        .faq-item.faq-active {
            border-color: var(--line-glow);
        }
        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.05rem 1.25rem;
            font-weight: 500;
            cursor: pointer;
            color: var(--text-high);
            font-size: 0.95rem;
            transition: color 0.25s ease;
            gap: 1rem;
        }
        .faq-q i {
            transition: transform 0.3s ease, color 0.3s ease;
            color: var(--text-mid);
            flex-shrink: 0;
        }
        .faq-q:hover i {
            color: var(--primary);
        }
        .faq-item.faq-active .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-a p {
            padding: 0 1.25rem 1.2rem;
            color: var(--text-mid);
            font-size: 0.88rem;
            line-height: 1.75;
            border-top: 1px solid transparent;
        }
        .faq-item.faq-active .faq-a {
            max-height: 300px;
        }
        .faq-item.faq-active .faq-a p {
            border-top-color: var(--line);
            padding-top: 1rem;
        }

        /* ===== CTA ===== */
        .cta-glass {
            background: var(--glass-bg);
            backdrop-filter: var(--glass-blur);
            -webkit-backdrop-filter: var(--glass-blur);
            border: 1px solid var(--line-glow);
            border-radius: 20px;
            padding: 2rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }
        .cta-glass::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 160px;
            height: 160px;
            border-radius: 999px;
            background: radial-gradient(circle, var(--primary-glow), transparent 70%);
            pointer-events: none;
        }
        .cta-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(56, 225, 216, 0.12);
            border: 1px solid var(--line-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.5rem;
            flex-shrink: 0;
        }
        .cta-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 0.25rem;
        }
        .cta-desc {
            font-size: 0.88rem;
            color: var(--text-mid);
        }
        .cta-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
        }

        /* ===== Footer ===== */
        .footer-site {
            background: var(--bg-sunken);
            border-top: 1px solid var(--line);
            padding: 3rem 0 0;
            margin-top: 1rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
        }
        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr;
                gap: 3rem;
            }
        }
        .footer-logo {
            display: flex;
            align-items: center;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-high);
            gap: 0.3rem;
            margin-bottom: 0.75rem;
        }
        .footer-logo .mk {
            color: var(--primary);
            font-size: 1.5rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-low);
            margin-bottom: 0.6rem;
        }
        .footer-icp {
            font-size: 0.75rem;
            color: var(--text-low);
        }
        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-mid);
            transition: color 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-links a i {
            font-size: 0.7rem;
            color: var(--text-low);
            transition: color 0.25s ease, transform 0.25s ease;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-links a:hover i {
            color: var(--primary);
            transform: translateX(2px);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding: 1.25rem 0;
            text-align: center;
        }
        .footer-copyright {
            font-size: 0.78rem;
            color: var(--text-low);
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 520px) {
            .hero-cat-title {
                font-size: 1.6rem;
            }
            .hero-cat-desc {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .card-guide-title {
                font-size: 0.95rem;
            }
            .cta-glass {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-btns {
                width: 100%;
            }
            .cta-btns .btn-primary,
            .cta-btns .btn-secondary {
                flex: 1;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
            --bg-base: #0B1220;
            --bg-elevated: #111B2E;
            --bg-sunken: #08101C;
            --primary: #38E1D8;
            --primary-strong: #17BFB6;
            --primary-glow: rgba(56, 225, 216, 0.35);
            --secondary: #F59E0B;
            --text-high: #F1F5F9;
            --text-mid: #9AA8BC;
            --text-low: #66788F;
            --line: #1F2B3D;
            --line-glow: rgba(56, 225, 216, 0.25);
            --glass-bg: rgba(17, 27, 46, 0.65);
            --glass-blur: 12px;
            --radius-card: 14px;
            --radius-btn: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 8px 24px rgba(4, 12, 24, 0.45);
            --shadow-glow: 0 0 18px rgba(56, 225, 216, 0.25);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-high);
            line-height: 1.75;
            letter-spacing: 0.01em;
            -webkit-font-smoothing: antialiased;
            padding-top: 64px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        button {
            font-family: inherit;
        }

        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-site {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-site {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== 导航 ===== */
        .nav-site {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border-bottom: 1px solid var(--line);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1rem;
        }
        .logo-text {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
            min-height: 40px;
        }
        .logo-mk {
            color: var(--primary);
        }
        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: rgba(245, 158, 11, 0.15);
            color: var(--secondary);
            font-size: 0.65rem;
            font-weight: 600;
            margin-left: 0.35rem;
            border: 1px solid rgba(245, 158, 11, 0.3);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .nav-links a {
            position: relative;
            font-size: 0.95rem;
            color: var(--text-mid);
            padding: 0.5rem 0;
            font-weight: 500;
            transition: color 0.2s ease;
            min-height: 40px;
            display: inline-flex;
            align-items: center;
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a.active {
            color: var(--primary);
        }
        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            display: flex;
            align-items: center;
            gap: 1rem;
            flex-shrink: 0;
        }
        .countdown-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            color: var(--secondary);
            background: rgba(245, 158, 11, 0.08);
            border: 1px solid rgba(245, 158, 11, 0.25);
            padding: 0.3rem 0.7rem;
            border-radius: var(--radius-tag);
            white-space: nowrap;
        }
        .countdown-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: var(--primary);
            color: var(--bg-base) !important;
            font-size: 0.9rem;
            font-weight: 600;
            padding: 0.6rem 1.4rem;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-glow);
            transition: all 0.25s ease;
            min-height: 40px;
            border: none;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(56, 225, 216, 0.45);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: transparent;
            color: var(--primary) !important;
            font-size: 0.9rem;
            font-weight: 500;
            padding: 0.6rem 1.4rem;
            border-radius: var(--radius-btn);
            border: 1px solid var(--line-glow);
            transition: all 0.25s ease;
            min-height: 40px;
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(56, 225, 216, 0.08);
            border-color: var(--primary);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .mob-trigger {
            display: none;
            background: none;
            border: none;
            color: var(--text-high);
            font-size: 1.3rem;
            padding: 0.5rem;
            min-width: 40px;
            min-height: 40px;
            cursor: pointer;
        }
        .mobile-panel {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: var(--bg-base);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding-top: 84px;
            flex-direction: column;
            align-items: center;
            gap: 1.2rem;
        }
        .mobile-panel.open {
            display: flex;
        }
        .mobile-panel a {
            font-size: 1.15rem;
            color: var(--text-mid);
            padding: 0.75rem 2rem;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
        }
        .mobile-panel a.active {
            color: var(--primary);
        }
        .mobile-panel .btn-primary {
            margin-top: 1rem;
        }
        .mobile-panel .panel-close {
            position: absolute;
            top: 1.2rem;
            right: 1rem;
            font-size: 1.4rem;
            background: none;
            border: none;
            color: var(--text-high);
            width: 40px;
            height: 40px;
            cursor: pointer;
        }
        @media (max-width: 767px) {
            .nav-links,
            .nav-cta {
                display: none;
            }
            .mob-trigger {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 70px 0 50px;
            background:
                linear-gradient(115deg, var(--bg-base) 0%, rgba(11, 18, 32, 0.8) 55%, rgba(11, 18, 32, 0.45) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid var(--line);
        }
        .article-hero-inner {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
            padding: 0 1rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            font-size: 0.8rem;
            color: var(--text-low);
            margin-bottom: 1.5rem;
        }
        .breadcrumb a {
            color: var(--text-mid);
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-low);
            opacity: 0.6;
        }
        .breadcrumb .current {
            color: var(--text-mid);
            max-width: 260px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-hero h1 {
            font-size: 2rem;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text-high);
            margin-bottom: 1.25rem;
        }
        @media (min-width: 768px) {
            .article-hero h1 {
                font-size: 2.5rem;
            }
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-mid);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-meta i {
            color: var(--primary);
        }

        /* ===== 正文区域 ===== */
        .article-wrap {
            padding: 3rem 0 2rem;
        }
        .article-content {
            max-width: 768px;
            margin: 0 auto;
        }
        .article-content p {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text-mid);
            margin-bottom: 1.5em;
        }
        @media (min-width: 768px) {
            .article-content p {
                font-size: 1.05rem;
            }
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-high);
            margin: 2.5rem 0 1rem;
            letter-spacing: 0.02em;
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-high);
            margin: 2rem 0 0.75rem;
        }
        .article-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-high);
            margin: 1.5rem 0 0.6rem;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-elevated);
            border-radius: 8px;
            padding: 1rem 1.25rem;
            margin: 1.5rem 0;
            color: var(--text-mid);
            font-style: italic;
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-style: dotted;
            text-underline-offset: 4px;
        }
        .article-content a:hover {
            color: var(--primary-strong);
        }
        .article-content img {
            max-width: 100%;
            border-radius: 12px;
            margin: 1.5rem auto;
        }
        .article-content figure {
            margin: 1.5rem 0;
        }
        .article-content figcaption {
            font-size: 0.8rem;
            color: var(--text-low);
            text-align: center;
            margin-top: 0.5rem;
        }
        .article-content ul,
        .article-content ol {
            margin: 1rem 0 1.5rem;
            padding-left: 1.5rem;
            color: var(--text-mid);
        }
        .article-content li {
            margin-bottom: 0.4rem;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            display: block;
            overflow-x: auto;
            background: var(--bg-sunken);
            border-radius: 8px;
            border: 1px solid var(--line);
        }
        .article-content th,
        .article-content td {
            padding: 0.75rem 1rem;
            border-bottom: 1px solid var(--line);
            font-size: 0.9rem;
            text-align: left;
        }
        .article-content th {
            color: var(--primary);
            font-weight: 600;
        }
        .article-content tr:last-child td {
            border-bottom: none;
        }
        .article-content code {
            background: var(--bg-sunken);
            padding: 0.2rem 0.4rem;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary);
        }
        .article-content pre {
            background: var(--bg-sunken);
            padding: 1.25rem;
            border-radius: 10px;
            border: 1px solid var(--line);
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        .article-content pre code {
            background: none;
            padding: 0;
            color: var(--text-high);
        }
        .article-content hr {
            border: none;
            border-top: 1px solid var(--line);
            margin: 2.5rem 0;
            opacity: 0.6;
        }

        /* ===== 标签与分享 ===== */
        .article-tags {
            max-width: 768px;
            margin: 2.5rem auto 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.8rem;
            color: var(--primary);
            background: rgba(56, 225, 216, 0.08);
            border: 1px solid var(--line-glow);
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-tag);
            transition: all 0.2s;
        }
        .tag:hover {
            border-color: var(--primary);
            background: rgba(56, 225, 216, 0.12);
        }
        .article-share {
            max-width: 768px;
            margin: 2rem auto 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--line);
        }
        .article-share span {
            font-size: 0.85rem;
            color: var(--text-low);
        }
        .share-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            border: 1px solid var(--line);
            color: var(--text-mid);
            font-size: 0.9rem;
            transition: all 0.25s;
            background: transparent;
            cursor: pointer;
        }
        .share-icon:hover {
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .share-icon:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 上下篇 ===== */
        .article-pager {
            max-width: 768px;
            margin: 2rem auto 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        .pager-link {
            display: block;
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 1rem 1.25rem;
            transition: all 0.25s;
            min-height: 70px;
        }
        .pager-link:hover {
            border-color: var(--line-glow);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .pager-link .pager-label {
            font-size: 0.75rem;
            color: var(--text-low);
            margin-bottom: 0.25rem;
        }
        .pager-link .pager-title {
            font-size: 0.9rem;
            color: var(--text-high);
            transition: color 0.2s;
        }
        .pager-link:hover .pager-title {
            color: var(--primary);
        }
        .pager-link.next {
            text-align: right;
        }
        @media (max-width: 520px) {
            .article-pager {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(31, 43, 61, 0.6);
        }
        .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 2rem;
        }
        .section-head h2 {
            font-size: 1.5rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .related-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        .related-card {
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(4, 12, 24, 0.5);
            border-color: var(--line-glow);
        }
        .related-card .card-img-wrap {
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }
        .related-card .card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .related-card:hover .card-img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 1rem;
        }
        .related-card .card-title {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-high);
            line-height: 1.4;
            margin-bottom: 0.5rem;
            transition: color 0.2s;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card:hover .card-title {
            color: var(--primary);
        }
        .related-card .card-date {
            font-size: 0.75rem;
            color: var(--text-low);
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 2rem 0 5rem;
        }
        .cta-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.5rem;
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border: 1px solid var(--line-glow);
            border-radius: var(--radius-card);
            padding: 2rem;
            box-shadow: var(--shadow-card);
            flex-wrap: wrap;
        }
        .cta-card:hover {
            box-shadow: 0 0 28px rgba(56, 225, 216, 0.18);
        }
        .cta-card .cta-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }
        .cta-card .cta-text h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.25rem;
            letter-spacing: 0.02em;
        }
        .cta-card .cta-text p {
            font-size: 0.85rem;
            color: var(--text-mid);
        }
        .cta-card .cta-actions {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            background: none;
            border: none;
            color: var(--text-mid);
            font-size: 0.9rem;
            min-height: 40px;
            padding: 0 0.75rem;
            transition: color 0.2s;
            cursor: pointer;
            border-radius: var(--radius-btn);
        }
        .btn-ghost:hover {
            color: var(--primary);
        }
        .btn-ghost:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== 空态 ===== */
        .article-empty-section {
            padding: 6rem 0;
        }
        .article-empty {
            max-width: 768px;
            margin: 0 auto;
            text-align: center;
            padding: 3rem 2rem;
            background: var(--bg-elevated);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
        }
        .article-empty h1 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-high);
        }
        .article-empty p {
            color: var(--text-mid);
            margin-bottom: 1.5rem;
        }

        /* ===== 移动端浮动条 ===== */
        .mobile-float-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 998;
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border-top: 1px solid var(--line);
            padding: 0.75rem 1rem;
            gap: 0.5rem;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-float-bar .float-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid var(--line);
            color: var(--text-mid);
            font-size: 1rem;
            transition: all 0.2s;
            background: transparent;
            cursor: pointer;
        }
        .mobile-float-bar .float-btn:hover {
            color: var(--secondary);
            border-color: var(--secondary);
        }
        .mobile-float-bar .float-login {
            flex: 1;
            max-width: 220px;
            margin-left: auto;
        }
        @media (max-width: 767px) {
            .mobile-float-bar {
                display: flex;
            }
            body {
                padding-bottom: 70px;
            }
        }

        /* ===== 页脚 ===== */
        .footer-site {
            background: var(--bg-sunken);
            border-top: 1px solid var(--line);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
            }
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-logo .mk {
            color: var(--primary);
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-low);
            margin-bottom: 0.75rem;
        }
        .footer-icp {
            font-size: 0.75rem;
            color: var(--text-low);
            display: inline-block;
        }
        .footer-col-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-mid);
            transition: color 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            min-height: 32px;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-links i {
            font-size: 0.65rem;
            color: var(--text-low);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 1.5rem;
            text-align: center;
        }
        .footer-copyright {
            font-size: 0.75rem;
            color: var(--text-low);
        }

/* roulang page: category2 */
:root {
    --bg-base: #0B1220;
    --bg-elevated: #111B2E;
    --bg-sunken: #08101C;
    --primary: #38E1D8;
    --primary-strong: #17BFB6;
    --primary-glow: rgba(56, 225, 216, 0.35);
    --secondary: #F59E0B;
    --text-high: #F1F5F9;
    --text-mid: #9AA8BC;
    --text-low: #66788F;
    --line: #1F2B3D;
    --line-glow: rgba(56, 225, 216, 0.25);
    --glass-bg: rgba(17, 27, 46, 0.65);
    --glass-blur: blur(12px);
    --radius-card: 14px;
    --radius-btn: 8px;
    --radius-tag: 999px;
    --shadow-card: 0 8px 24px rgba(4, 12, 24, 0.45);
    --shadow-glow: 0 0 18px rgba(56, 225, 216, 0.25);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
    background: var(--bg-base);
    color: var(--text-high);
    line-height: 1.75;
    letter-spacing: 0.01em;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease, border-color .2s ease, background .2s ease; }
ul { list-style: none; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.container-site {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1rem;
}
@media (min-width: 640px) { .container-site { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container-site { padding: 0 2rem; } }

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: var(--primary);
    color: #0B1220;
    font-size: .9rem;
    font-weight: 600;
    padding: .75rem 1.75rem;
    border-radius: var(--radius-btn);
    border: none;
    cursor: pointer;
    transition: all .25s ease;
    box-shadow: var(--shadow-glow);
    letter-spacing: .02em;
    line-height: 1.4;
}
.btn-primary:hover { box-shadow: 0 0 24px rgba(56,225,216,.45); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); filter: brightness(.92); }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--line-glow);
    font-size: .9rem;
    font-weight: 500;
    padding: .75rem 1.75rem;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: all .25s ease;
    letter-spacing: .02em;
    line-height: 1.4;
}
.btn-secondary:hover { background: rgba(56,225,216,.08); border-color: var(--primary); }

/* ===== Navigation ===== */
.nav-site {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--line);
    height: 4rem;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}
.logo-text {
    display: flex;
    align-items: center;
    gap: .25rem;
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--text-high);
}
.logo-text:hover { color: var(--text-high); }
.logo-mk { color: var(--primary); font-weight: 800; font-size: 1.35rem; }
.logo-badge {
    margin-left: .35rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    font-size: .7rem;
    font-weight: 600;
    color: var(--secondary);
    border: 1px solid rgba(245,158,11,.4);
    line-height: 1;
}
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
    color: var(--text-mid);
    font-size: .95rem;
    font-weight: 500;
    padding: .5rem 0;
    position: relative;
    display: inline-block;
}
.nav-links a:hover { color: var(--text-high); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 1rem; }
.countdown-tag {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .8rem;
    color: var(--secondary);
    letter-spacing: .02em;
}
.countdown-tag .dot { width: 8px; height: 8px; border-radius: 50%; background: #22C55E; box-shadow: 0 0 6px rgba(34,197,94,.5); }
.mob-trigger {
    display: none;
    background: none;
    border: none;
    color: var(--text-high);
    font-size: 1.4rem;
    cursor: pointer;
    padding: .5rem;
    line-height: 1;
}
.mob-nav {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1999;
    background: rgba(11,18,32,.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}
.mob-nav.open { display: flex; }
.mob-nav a { color: var(--text-high); font-size: 1.25rem; font-weight: 500; }
.mob-nav a.active { color: var(--primary); }
.mob-nav .btn-primary { margin-top: .5rem; }
.mob-close {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    color: var(--text-high);
    font-size: 1.6rem;
    cursor: pointer;
    padding: .5rem;
    line-height: 1;
}

/* ===== Footer ===== */
.footer-site {
    background: var(--bg-sunken);
    border-top: 1px solid var(--line);
    padding: 3.5rem 0 1.5rem;
    margin-top: 4rem;
}
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: repeat(3, 1fr); } }
.footer-logo {
    display: flex;
    align-items: center;
    gap: .25rem;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: .75rem;
    color: var(--text-high);
}
.footer-logo .mk { color: var(--primary); font-weight: 800; }
.footer-desc { color: var(--text-low); font-size: .85rem; margin-bottom: .5rem; }
.footer-icp { color: var(--text-low); font-size: .75rem; }
.footer-col-title { color: var(--text-high); font-size: .95rem; font-weight: 600; margin-bottom: 1rem; }
.footer-links li { margin-bottom: .6rem; }
.footer-links a {
    color: var(--text-mid);
    font-size: .875rem;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    transition: color .2s ease;
}
.footer-links a:hover { color: var(--primary); }
.footer-links .fa-chevron-right { font-size: .7rem; color: var(--text-low); }
.footer-bottom { border-top: 1px solid var(--line); margin-top: 2.5rem; padding-top: 1.5rem; text-align: center; }
.footer-copyright { color: var(--text-low); font-size: .75rem; }

/* ===== Hero ===== */
.hero-login {
    position: relative;
    padding: 6.5rem 0 3rem;
    min-height: 42vh;
    display: flex;
    align-items: center;
    background:
        linear-gradient(105deg, var(--bg-base) 35%, rgba(11,18,32,.6) 75%, rgba(11,18,32,.35)),
        url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}
.hero-login::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, var(--bg-base) 100%);
    pointer-events: none;
}
.hero-login-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 2;
    width: 100%;
}
@media (min-width: 1024px) { .hero-login-grid { grid-template-columns: 1.1fr .9fr; } }
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .4rem;
    font-size: .8rem;
    color: var(--text-low);
    margin-bottom: 1.25rem;
}
.breadcrumb a { color: var(--text-mid); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-low); }
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    border: 1px solid rgba(245,158,11,.3);
    color: var(--secondary);
    font-size: .75rem;
    padding: .3rem .8rem;
    border-radius: var(--radius-tag);
    letter-spacing: .02em;
    margin-bottom: 1rem;
    background: rgba(245,158,11,.06);
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--secondary); }
.hero-title {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: .02em;
    margin-bottom: .9rem;
    color: var(--text-high);
}
@media (min-width: 768px) { .hero-title { font-size: 2.6rem; } }
.hero-title .mk { color: var(--primary); }
.hero-sub { color: var(--text-mid); font-size: 1rem; margin-bottom: 1.5rem; letter-spacing: .02em; }
.hero-btns { display: flex; gap: .8rem; flex-wrap: wrap; }
.hero-visual {
    position: relative;
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--line-glow);
    box-shadow: var(--shadow-card);
}
.hero-visual img { width: 100%; height: 260px; object-fit: cover; object-position: center; }
@media (min-width: 768px) { .hero-visual img { height: 320px; } }
.hero-float-card {
    position: absolute;
    left: .8rem;
    bottom: .8rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--line-glow);
    border-radius: 10px;
    padding: .6rem .9rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    font-size: .8rem;
    color: var(--text-high);
    box-shadow: var(--shadow-card);
}
.hero-float-card .dot { width: 8px; height: 8px; border-radius: 50%; background: #22C55E; box-shadow: 0 0 8px rgba(34,197,94,.5); }

/* ===== Section ===== */
.section { padding: 3rem 0; }
@media (min-width: 768px) { .section { padding: 4rem 0; } }
.section-head { margin-bottom: 2rem; }
.section-head.text-center { text-align: center; }
.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: .02em;
    color: var(--text-high);
    line-height: 1.3;
}
@media (min-width: 768px) { .section-title { font-size: 1.8rem; } }
.section-desc { color: var(--text-mid); font-size: .9rem; margin-top: .5rem; }

/* ===== Status Strip ===== */
.status-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 1.2rem;
    margin: -2rem 0 3rem;
    position: relative;
    z-index: 3;
    box-shadow: var(--shadow-card);
}
@media (min-width: 768px) { .status-strip { padding: 1.5rem 2rem; } }
.status-item { text-align: center; }
.status-item .label { color: var(--text-low); font-size: .75rem; margin-bottom: .25rem; }
.status-item .value { color: var(--text-high); font-size: 1rem; font-weight: 600; }
.status-item .value .dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #22C55E;
    margin-right: .3rem;
    box-shadow: 0 0 6px rgba(34,197,94,.4);
}

/* ===== Steps ===== */
.steps-grid { display: grid; grid-template-columns: 1fr; gap: 1.2rem; }
@media (min-width: 640px) { .steps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .steps-grid { grid-template-columns: repeat(4, 1fr); } }
.step-card {
    position: relative;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 1.6rem 1.3rem 1.3rem;
    transition: all .25s ease;
}
.step-card:hover { transform: translateY(-4px); border-color: var(--line-glow); box-shadow: var(--shadow-card); }
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    background: var(--primary);
    color: #0B1220;
    font-weight: 700;
    font-size: .95rem;
    margin-bottom: .8rem;
}
.step-card h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: .35rem; color: var(--text-high); }
.step-card p { color: var(--text-mid); font-size: .85rem; line-height: 1.6; }

/* ===== Service Cards ===== */
.service-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 768px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
.service-card {
    position: relative;
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    transition: all .25s ease;
}
.service-card:hover { border-color: var(--line-glow); box-shadow: var(--shadow-card); transform: translateY(-3px); }
.service-card .cover { position: relative; height: 160px; overflow: hidden; }
.service-card .cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.service-card:hover .cover img { transform: scale(1.04); }
.service-card .cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(11,18,32,.82));
}
.service-card .body { padding: 1.2rem 1.4rem 1.4rem; }
.service-card h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: .35rem; color: var(--text-high); }
.service-card p { color: var(--text-mid); font-size: .85rem; margin-bottom: 1rem; line-height: 1.65; }

/* ===== Security ===== */
.security-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .security-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .security-grid { grid-template-columns: repeat(4, 1fr); } }
.security-card {
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    padding: 1.2rem;
    transition: all .25s ease;
    height: 100%;
}
.security-card:hover { border-color: var(--line-glow); transform: translateY(-2px); box-shadow: var(--shadow-card); }
.security-card .icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(56,225,216,.1);
    color: var(--primary);
    font-size: 1.1rem;
    margin-bottom: .75rem;
}
.security-card h4 { font-size: .95rem; font-weight: 600; margin-bottom: .3rem; color: var(--text-high); }
.security-card p { color: var(--text-mid); font-size: .8rem; line-height: 1.55; }

/* ===== FAQ ===== */
.faq-list { max-width: 56rem; margin: 0 auto; }
.faq-item {
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: 12px;
    margin-bottom: .8rem;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item.open { border-color: var(--line-glow); box-shadow: 0 0 12px rgba(56,225,216,.08); }
.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.2rem;
    cursor: pointer;
    font-size: .95rem;
    font-weight: 500;
    color: var(--text-high);
    min-height: 48px;
    gap: 1rem;
    user-select: none;
}
.faq-q .icon { color: var(--primary); font-size: 1.1rem; transition: transform .25s ease; flex-shrink: 0; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p {
    padding: .8rem 1.2rem 1rem;
    color: var(--text-mid);
    font-size: .85rem;
    line-height: 1.7;
    border-top: 1px solid var(--line);
}

/* ===== CTA Collect ===== */
.cta-collect {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--line-glow);
    border-radius: var(--radius-card);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-card);
}
@media (min-width: 768px) {
    .cta-collect { flex-direction: row; text-align: left; padding: 2.5rem 3rem; }
}
.cta-collect-left { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.cta-collect .icon {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(245,158,11,.12);
    color: var(--secondary);
    font-size: 1.3rem;
    flex-shrink: 0;
}
.cta-collect h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: .25rem; color: var(--text-high); }
.cta-collect p { color: var(--text-mid); font-size: .85rem; }
.cta-collect .btns { display: flex; gap: .7rem; flex-wrap: wrap; justify-content: center; }

/* ===== Responsive Nav ===== */
@media (max-width: 767px) {
    .nav-links, .nav-cta { display: none; }
    .mob-trigger { display: block; }
}

/* ===== Misc ===== */
.divider { border: none; border-top: 1px solid rgba(31,43,61,.6); margin: 0; }
.text-center { text-align: center; }