/* roulang page: index */
:root {
            --bg-dark: #0B0E13;
            --bg-secondary: #121820;
            --bg-card: #161D26;
            --border: #232C38;
            --primary: #C8F135;
            --accent: #FF6B2C;
            --purple: #8C6EFF;
            --text-primary: #E6ECF2;
            --text-secondary: #8B98A8;
            --text-muted: #5D6B7E;
            --success: #4CC38A;
            --error: #FF5B6A;
            --info: #4AA8FF;
            --radius-card: 14px;
            --radius-btn: 12px;
            --radius-input: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 14px 40px rgba(0, 0, 0, 0.5);
            --glow-primary: 0 0 20px rgba(200, 241, 53, 0.25);
            --glow-accent: 0 0 24px rgba(255, 107, 44, 0.3);
            --max-width: 1200px;
            --space-section: clamp(64px, 8vw, 110px);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "sans-serif";
            --font-number: "DIN Alternate", "Barlow Condensed", "Roboto Condensed", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-dark);
            color: var(--text-primary);
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s, border-color 0.25s, background 0.25s, box-shadow 0.25s, transform 0.25s;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3 {
            line-height: 1.25;
            margin: 0;
        }

        h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.12;
        }

        h2 {
            font-size: clamp(22px, 3vw, 36px);
            font-weight: 700;
            position: relative;
        }

        h3 {
            font-size: 20px;
            font-weight: 600;
        }

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--space-section) 0;
            position: relative;
        }

        .section-secondary {
            background: var(--bg-secondary);
        }

        .section-heading {
            margin-bottom: 48px;
        }

        .section-heading h2 {
            padding-left: 16px;
        }

        .section-heading h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 0.85em;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: var(--glow-primary);
        }

        .section-heading p {
            color: var(--text-secondary);
            margin-top: 12px;
            font-size: 15px;
        }

        .section-heading .heading-sub {
            color: var(--text-muted);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.25s ease;
            line-height: 1;
            border: 1px solid transparent;
            min-height: 44px;
            white-space: nowrap;
        }

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--accent);
            color: #0B0E13;
            box-shadow: 0 4px 16px rgba(255, 107, 44, 0.2);
        }

        .btn-primary:hover {
            background: #FF8A50;
            transform: translateY(-2px);
            box-shadow: var(--glow-accent);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            background: transparent;
            border-color: #4A5868;
            color: var(--text-primary);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 16px rgba(200, 241, 53, 0.15);
        }

        .btn-lg {
            padding: 18px 42px;
            font-size: 18px;
            min-height: 56px;
            border-radius: 14px;
        }

        .btn-green {
            background: linear-gradient(135deg, #C8F135, #4CC38A);
            color: #0B0E13;
            box-shadow: 0 4px 20px rgba(200, 241, 53, 0.2);
        }

        .btn-green:hover {
            box-shadow: 0 0 30px rgba(200, 241, 53, 0.4);
            transform: translateY(-2px);
        }

        .badge {
            display: inline-block;
            background: rgba(255, 107, 44, 0.12);
            color: var(--accent);
            border-radius: var(--radius-badge);
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            line-height: 1.5;
        }

        .badge-new {
            background: var(--primary);
            color: #0B0E13;
            border-radius: var(--radius-badge);
            padding: 3px 8px;
            font-size: 11px;
            font-weight: 700;
        }

        .card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
        }

        .card:hover {
            border-color: rgba(200, 241, 53, 0.5);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== Header/Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(11, 14, 19, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
        }

        .site-header::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, var(--primary), transparent 80%);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

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

        .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 800;
            color: #0B0E13;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .logo-text .highlight {
            color: var(--primary);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
        }

        .main-nav a {
            display: block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 6px;
            position: relative;
            transition: color 0.25s;
        }

        .main-nav a:hover {
            color: #fff;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transform: scaleX(0);
            transition: transform 0.3s;
            box-shadow: var(--glow-primary);
        }

        .main-nav a:hover::after {
            transform: scaleX(1);
            opacity: 0.6;
        }

        .main-nav a.active {
            color: var(--primary);
        }

        .main-nav a.active::after {
            transform: scaleX(1);
            opacity: 1;
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-login {
            padding: 10px 24px;
            font-size: 14px;
            border-radius: 10px;
        }

        .hamburger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 8px;
            border: 1px solid var(--border);
            background: transparent;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            transition: border-color 0.25s;
        }

        .hamburger:hover {
            border-color: var(--primary);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: transform 0.3s, opacity 0.3s;
        }

        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(11, 14, 19, 0.98);
            border-top: 1px solid var(--primary);
            padding: 12px 24px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 4px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        }

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

        .mobile-nav a {
            display: flex;
            align-items: center;
            min-height: 44px;
            padding: 10px 16px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: 8px;
        }

        .mobile-nav a:hover {
            color: var(--primary);
            background: rgba(200, 241, 53, 0.06);
        }

        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(200, 241, 53, 0.08);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 160px 0 100px;
            background: linear-gradient(90deg, rgba(11, 14, 19, 0.97) 0%, rgba(11, 14, 19, 0.88) 45%, rgba(11, 14, 19, 0.55) 100%),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            isolation: isolate;
            overflow: hidden;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), transparent 80%);
            z-index: 1;
        }

        .hero-glow {
            position: absolute;
            right: -100px;
            top: 30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(200, 241, 53, 0.12) 0%, transparent 70%);
            z-index: 0;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .hero-content {
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 30px;
            border: 1px solid rgba(200, 241, 53, 0.3);
            background: rgba(200, 241, 53, 0.06);
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hero-content h1 {
            margin-bottom: 18px;
            letter-spacing: 1px;
        }

        .hero-content h1 .highlight {
            color: var(--primary);
        }

        .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 36px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 56px;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 32px;
        }

        .hero-stat {
            padding: 4px 0;
        }

        .hero-stat .num {
            font-family: var(--font-number);
            font-size: clamp(28px, 3vw, 40px);
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: block;
        }

        .hero-stat .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
            display: block;
        }

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

        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .process-grid::before {
            content: '';
            position: absolute;
            top: 65px;
            left: 12%;
            right: 12%;
            height: 1px;
            background: repeating-linear-gradient(90deg, var(--primary) 0 6px, transparent 6px 14px);
            opacity: 0.35;
            z-index: 0;
        }

        .process-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            position: relative;
            z-index: 1;
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
        }

        .process-card:hover {
            border-color: rgba(200, 241, 53, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .process-card.featured {
            border-color: rgba(200, 241, 53, 0.6);
            background: linear-gradient(160deg, #1A232F, #161D26);
            box-shadow: var(--glow-primary), var(--shadow-card);
        }

        .process-num {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 20px;
        }

        .process-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(200, 241, 53, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 20px;
            color: var(--primary);
        }

        .process-card h3 {
            margin-bottom: 10px;
            font-size: 18px;
        }

        .process-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ===== Matches / Case ===== */
        .match-layout {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
        }

        .match-large {
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            min-height: 420px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .match-large:hover {
            border-color: rgba(200, 241, 53, 0.45);
            box-shadow: var(--shadow-card-hover);
        }

        .match-large-thumb {
            position: relative;
            height: 240px;
            overflow: hidden;
        }

        .match-large-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .match-large:hover .match-large-thumb img {
            transform: scale(1.04);
        }

        .match-large-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 0%, rgba(11, 14, 19, 0.85) 100%);
        }

        .match-large-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
        }

        .match-large-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .match-large-body h3 {
            font-size: 22px;
            margin-bottom: 10px;
        }

        .match-large-body p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            flex: 1;
        }

        .match-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 18px;
        }

        .match-meta .stat-highlight {
            font-family: var(--font-number);
            font-size: 24px;
            font-weight: 700;
            color: var(--primary);
        }

        .match-meta .meta-label {
            font-size: 13px;
            color: var(--text-muted);
        }

        .match-side {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .match-small {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
            flex: 1;
        }

        .match-small:hover {
            border-color: rgba(200, 241, 53, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .match-small-thumb {
            height: 120px;
            overflow: hidden;
        }

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

        .match-small-body {
            padding: 18px;
        }

        .match-small-body .badge {
            margin-bottom: 8px;
        }

        .match-small-body h3 {
            font-size: 17px;
            line-height: 1.45;
        }

        .match-small-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            line-height: 1.6;
        }

        /* ===== News / CMS ===== */
        .news-layout {
            display: grid;
            grid-template-columns: 1.15fr 1fr;
            gap: 28px;
        }

        .news-feature {
            display: flex;
            flex-direction: column;
            border-radius: var(--radius-card);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: all 0.3s;
        }

        .news-feature:hover {
            border-color: rgba(200, 241, 53, 0.5);
            box-shadow: var(--shadow-card-hover);
        }

        .news-feature-thumb {
            height: 260px;
            overflow: hidden;
            position: relative;
        }

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

        .news-feature-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 0%, rgba(11, 14, 19, 0.5) 100%);
        }

        .news-feature-body {
            padding: 24px 28px 28px;
        }

        .news-feature-body .badge {
            margin-bottom: 10px;
        }

        .news-feature-body h3 {
            font-size: 21px;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-feature-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 16px;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

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

        .news-meta a {
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }

        .news-meta a:hover {
            text-decoration: underline;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 14px;
            transition: all 0.3s;
        }

        .news-item:hover {
            border-color: rgba(200, 241, 53, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateX(4px);
        }

        .news-item-thumb {
            width: 100px;
            height: 68px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

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

        .news-item-body {
            flex: 1;
            min-width: 0;
        }

        .news-item-body h3 {
            font-size: 15px;
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 4px;
        }

        .news-item-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .news-item-meta .badge {
            padding: 2px 6px;
            font-size: 11px;
        }

        .news-empty {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-muted);
            font-size: 14px;
        }

        .news-empty i {
            font-size: 32px;
            display: block;
            margin-bottom: 12px;
            color: var(--text-muted);
            opacity: 0.5;
        }

        /* ===== FAQ ===== */
        .faq-layout {
            display: grid;
            grid-template-columns: 0.75fr 1.25fr;
            gap: 48px;
            align-items: start;
        }

        .faq-heading {
            position: sticky;
            top: 100px;
        }

        .faq-heading h2 {
            margin-bottom: 14px;
        }

        .faq-heading p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            font-size: 15px;
        }

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

        .faq-heading .faq-contact:hover {
            text-decoration: underline;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--bg-secondary);
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            color: var(--text-primary);
            transition: background 0.25s, color 0.25s;
            min-height: 44px;
        }

        .faq-question:hover {
            background: rgba(200, 241, 53, 0.04);
            color: var(--primary);
        }

        .faq-icon {
            font-size: 18px;
            color: var(--text-muted);
            transition: transform 0.3s, color 0.3s;
            flex-shrink: 0;
            width: 20px;
            text-align: center;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.active .faq-answer {
            max-height: 240px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: var(--bg-secondary);
            overflow: hidden;
            text-align: center;
            padding: clamp(72px, 10vw, 120px) 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(200, 241, 53, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: 15%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(255, 107, 44, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            max-width: 680px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
            padding: 0 24px;
        }

        .cta-inner h2 {
            font-size: clamp(26px, 3.5vw, 36px);
            margin-bottom: 16px;
        }

        .cta-inner p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            font-size: 16px;
        }

        .cta-btn {
            margin-bottom: 20px;
        }

        .cta-trust {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .cta-trust i {
            color: var(--primary);
            font-size: 14px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #080B0F;
            position: relative;
            padding-top: 0;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent), transparent 90%);
        }

        .footer-top {
            padding: 72px 0 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
            gap: 40px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 12px;
            max-width: 280px;
        }

        .footer-col h3 {
            font-size: 15px;
            margin-bottom: 20px;
            color: var(--text-primary);
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
        }

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

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

        .footer-col ul a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.25s, padding-left 0.25s;
        }

        .footer-col ul a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

        .footer-contact p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact p i {
            width: 16px;
            color: var(--primary);
            font-size: 14px;
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
        }

        .footer-bottom a {
            color: var(--text-muted);
            font-size: 13px;
            margin-left: 16px;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }

            .header-cta .header-login {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .process-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .process-grid::before {
                display: none;
            }

            .match-layout {
                grid-template-columns: 1fr;
            }

            .match-large {
                min-height: auto;
            }

            .news-layout {
                grid-template-columns: 1fr;
            }

            .news-feature-thumb {
                height: 220px;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .faq-heading {
                position: static;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                padding: 0 16px;
            }

            .hero {
                padding: 130px 0 72px;
            }

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

            .hero-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }

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

            .section {
                padding: 56px 0;
            }

            .process-card {
                padding: 24px 20px;
            }

            .match-large-thumb {
                height: 180px;
            }

            .match-large-body {
                padding: 18px;
            }

            .news-feature-thumb {
                height: 180px;
            }

            .news-feature-body {
                padding: 18px;
            }

            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .news-item-thumb {
                width: 100%;
                height: 140px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

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

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

            .cta-trust {
                flex-direction: column;
                gap: 8px;
                align-items: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .footer-bottom a {
                margin-left: 8px;
                margin-right: 8px;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }

            .hero-stats {
                grid-template-columns: 1fr;
            }

            .btn-lg {
                padding: 16px 32px;
                font-size: 16px;
            }
        }

        /* ===== Misc ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .divider-glow {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(200, 241, 53, 0.3), transparent);
            margin: 0;
        }

        ::selection {
            background: rgba(200, 241, 53, 0.2);
            color: var(--primary);
        }

/* roulang page: category1 */
:root {
  --bg-primary: #0B0E13;
  --bg-secondary: #121820;
  --bg-card: #161D26;
  --border-color: #232C38;
  --accent-green: #C8F135;
  --accent-orange: #FF6B2C;
  --accent-purple: #8C6EFF;
  --text-primary: #E6ECF2;
  --text-secondary: #8B98A8;
  --text-muted: #5D6B7E;
  --radius-card: 14px;
  --radius-btn: 12px;
  --radius-input: 8px;
  --radius-badge: 4px;
  --shadow-card: 0 10px 30px rgba(0,0,0,0.35);
  --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.55);
  --glow-green: 0 0 22px rgba(200,241,53,0.25);
  --glow-orange: 0 0 24px rgba(255,107,44,0.35);
  --transition-base: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--text-primary); text-decoration: none; transition: var(--transition-base); }
a:hover { color: var(--accent-green); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button, input { font-family: inherit; }

:focus-visible {
  outline: 3px solid var(--accent-green);
  outline-offset: 2px;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: clamp(64px, 8vw, 110px) 0; }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 72px;
  background: rgba(11,14,19,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}
.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent-green), transparent 70%);
  pointer-events: none;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.4px;
}
.logo .logo-badge {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 900;
  color: #0B0E13;
  box-shadow: var(--glow-green);
}
.logo .highlight { color: var(--accent-green); }
.main-nav ul { display: flex; align-items: center; gap: 6px; margin: 0; }
.main-nav ul li { margin: 0; }
.main-nav ul li a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-btn);
  position: relative;
  transition: var(--transition-base);
}
.main-nav ul li a:hover { color: #fff; }
.main-nav ul li a.active {
  color: var(--accent-green);
  font-weight: 600;
}
.main-nav ul li a.active::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 2px;
  height: 2px;
  background: var(--accent-green);
  box-shadow: var(--glow-green);
  border-radius: 2px;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: 8px;
}
.btn-login {
  position: relative;
  z-index: 994;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-align: center;
}
.btn-primary {
  background: var(--accent-orange);
  color: #0B0E13;
}
.btn-primary:hover {
  background: #FF8A50;
  color: #0B0E13;
  transform: translateY(-2px);
  box-shadow: var(--glow-orange);
}
.btn-primary:active { transform: scale(0.98); }
.btn-secondary {
  background: transparent;
  border: 1px solid #4A5868;
  color: #fff;
}
.btn-secondary:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--text-primary);
}
.btn-ghost:hover {
  border-color: var(--accent-green);
  color: var(--accent-green);
}
.btn-large {
  height: 58px;
  font-size: 18px;
  padding: 0 44px;
  background: linear-gradient(135deg, var(--accent-green), #7ACF4C);
  color: #0B0E13;
  box-shadow: var(--glow-green);
}
.btn-large:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(200,241,53,0.4);
  color: #0B0E13;
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 44px; height: 44px;
  border-radius: 8px;
  position: relative;
  z-index: 995;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  margin: 5px auto;
  transition: var(--transition-base);
  border-radius: 2px;
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 首屏横幅 */
.category-hero {
  position: relative;
  padding: 150px 0 80px;
  background: linear-gradient(180deg, rgba(11,14,19,0.4), rgba(11,14,19,0.85)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(140,110,255,0.12), transparent 70%);
  pointer-events: none;
}
.category-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.category-hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.12;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 0.5px;
}
.category-hero h1 .text-accent {
  color: var(--accent-green);
}
.category-hero p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.8;
  margin-bottom: 30px;
}
.hero-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* 左栏 + 右栏 */
.content-split {
  padding: clamp(64px, 7vw, 90px) 0;
  background: var(--bg-primary);
}
.split-left {
  padding-right: 32px;
}
.split-left h2 {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-left: 16px;
  line-height: 1.3;
}
.split-left h2::before {
  content: "";
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 4px;
  background: var(--accent-green);
  border-radius: 4px;
}
.split-left h3 {
  font-size: 19px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text-primary);
}
.split-left p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.85;
}
.split-left img {
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  margin: 20px 0 24px;
  width: 100%;
}
.feat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}
.feat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 20px;
  transition: var(--transition-base);
}
.feat-card:hover {
  border-color: rgba(200,241,53,0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.feat-card i {
  font-size: 24px;
  color: var(--accent-green);
  margin-bottom: 12px;
}
.feat-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.feat-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.65;
}
.scene-list {
  margin-top: 16px;
}
.scene-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: 10px;
  margin-bottom: 10px;
  color: var(--text-secondary);
  font-size: 15px;
  border-left: 3px solid var(--accent-green);
}
.scene-list li i {
  color: var(--accent-green);
  font-size: 16px;
  flex-shrink: 0;
}

/* 右栏推荐块 */
.recommend-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 100px;
}
.recommend-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.recommend-title::before {
  content: "";
  width: 4px; height: 18px;
  background: var(--accent-orange);
  border-radius: 4px;
}
.recommend-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-base);
}
.recommend-card:hover {
  border-color: rgba(200,241,53,0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.recommend-card .rc-img {
  height: 140px;
  overflow: hidden;
}
.recommend-card .rc-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.recommend-card:hover .rc-img img { transform: scale(1.05); }
.recommend-card .rc-body {
  padding: 18px 20px 20px;
}
.rc-badge {
  display: inline-block;
  background: rgba(255,107,44,0.12);
  color: var(--accent-orange);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.recommend-card h4 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}
.recommend-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}
.rc-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-green);
}
.rc-link:hover { color: var(--accent-orange); }
.rc-link i { font-size: 13px; }

/* 步骤流程 */
.steps-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: clamp(56px, 7vw, 88px) 0;
}
.section-title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  padding-left: 16px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 4px;
  background: var(--accent-green);
  border-radius: 4px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 44px;
}
.steps-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 24px;
  align-items: stretch;
}
.step-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: 30px 28px;
  position: relative;
  transition: var(--transition-base);
}
.step-item:hover {
  border-color: rgba(200,241,53,0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}
.step-item:nth-child(2) {
  border-color: var(--accent-green);
  box-shadow: 0 0 20px rgba(200,241,53,0.1);
  transform: translateY(10px);
  background: linear-gradient(180deg, rgba(200,241,53,0.04), var(--bg-card) 60%);
}
.step-item:nth-child(2):hover {
  transform: translateY(6px);
  box-shadow: 0 0 30px rgba(200,241,53,0.2);
}
.step-number {
  font-family: "DIN Alternate", "Barlow Condensed", sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-green);
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.step-item i {
  font-size: 26px;
  color: var(--accent-orange);
  margin-bottom: 14px;
}
.step-item h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
}
.step-connector {
  display: none;
}

/* FAQ */
.faq-section {
  padding: clamp(56px, 7vw, 90px) 0;
  background: var(--bg-primary);
}
.faq-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
}
.faq-layout .section-title { margin-bottom: 16px; }
.faq-layout p { color: var(--text-secondary); }
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition-base);
}
.faq-item:hover { border-color: rgba(200,241,53,0.4); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  list-style: none;
  gap: 16px;
  line-height: 1.5;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  color: var(--accent-green);
  transition: var(--transition-base);
}
.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--accent-green);
  color: #0B0E13;
  border-color: var(--accent-green);
}
.faq-item summary:hover { color: var(--accent-green); }
.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px solid var(--border-color);
  margin-top: 0;
  padding-top: 16px;
}

/* 横铺图卡 */
.gallery-cards {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: clamp(56px, 7vw, 88px) 0;
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
}
.gallery-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200,241,53,0.5);
  box-shadow: var(--shadow-card-hover);
}
.gallery-card .gc-img {
  height: 170px;
  overflow: hidden;
  position: relative;
}
.gallery-card .gc-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.gallery-card:hover .gc-img img { transform: scale(1.06); }
.gallery-card .gc-body {
  padding: 22px 24px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.gallery-card .gc-tag {
  align-self: flex-start;
  background: rgba(200,241,53,0.12);
  color: var(--accent-green);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}
.gallery-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.35;
}
.gallery-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0 0 16px;
  flex: 1;
}
.gc-link {
  color: var(--accent-green);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.gc-link:hover { color: var(--accent-orange); }

/* CTA */
.cta-section {
  position: relative;
  padding: clamp(64px, 8vw, 100px) 0;
  background: var(--bg-primary);
  overflow: hidden;
  text-align: center;
}
.cta-section::before,
.cta-section::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.cta-section::before {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(200,241,53,0.15), transparent 70%);
  top: -80px; left: 10%;
}
.cta-section::after {
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(255,107,44,0.12), transparent 70%);
  bottom: -60px; right: 12%;
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 24px;
}
.cta-inner h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.25;
}
.cta-inner h2 .highlight {
  color: var(--accent-green);
}
.cta-inner > p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 34px;
  line-height: 1.8;
}
.cta-trust {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
}
.cta-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.cta-trust i { color: var(--accent-green); }

/* Footer */
.site-footer {
  background: #080B0F;
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--accent-green), var(--accent-purple)) 1;
}
.footer-top {
  padding: 56px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 32px;
}
.footer-brand .logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
}
.footer-brand .logo-text .highlight {
  color: var(--accent-green);
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.7;
  max-width: 300px;
}
.footer-col h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition-base);
}
.footer-col ul li a:hover {
  color: var(--accent-green);
  padding-left: 4px;
}
.footer-contact p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i {
  color: var(--accent-green);
  width: 18px;
  text-align: center;
}
.footer-contact p a {
  color: var(--text-secondary);
}
.footer-contact p a:hover { color: var(--accent-green); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 18px 0;
  background: rgba(0,0,0,0.3);
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}
.footer-bottom a {
  color: var(--text-muted);
  margin-left: 18px;
  font-size: 13px;
}
.footer-bottom a:hover { color: var(--accent-green); }

/* 移动端 */
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 767px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 0 16px; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(11,14,19,0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 2px solid var(--accent-green);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    z-index: 990;
  }
  .main-nav.mobile-open { max-height: 420px; }
  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
  }
  .main-nav ul li a {
    padding: 14px 16px;
    border-radius: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .main-nav ul li a.active::after { display: none; }
  .main-nav ul li a.active {
    background: rgba(200,241,53,0.08);
    color: var(--accent-green);
  }
  .nav-cta {
    margin-left: 0;
  }
  .nav-cta .btn { padding: 12px 22px; font-size: 14px; }

  .category-hero {
    padding: 120px 0 60px;
  }
  .category-hero h1 { font-size: 30px; }
  .category-hero p { font-size: 15px; }

  .split-left { padding-right: 0; }
  .feat-grid { grid-template-columns: 1fr; }
  .recommend-stack { position: static; margin-top: 36px; }
  .steps-grid { grid-template-columns: 1fr; gap: 18px; }
  .step-item:nth-child(2) { transform: none; }
  .step-item:nth-child(2):hover { transform: translateY(-4px); }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .gallery-grid { grid-template-columns: 1fr; gap: 16px; }
  .cta-trust { flex-direction: column; gap: 10px; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand { grid-column: span 1; }
  .footer-bottom .container { flex-direction: column; align-items: flex-start; padding: 0 16px; }
  .footer-bottom a { margin-left: 0; margin-right: 18px; }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .step-item:nth-child(3) { grid-column: span 2; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

/* roulang page: article */
:root {
            --bg-main: #0B0E13;
            --bg-sub: #121820;
            --bg-card: #161D26;
            --border: #232C38;
            --border-light: #2A3541;
            --primary: #C8F135;
            --primary-glow: rgba(200, 241, 53, 0.25);
            --secondary: #FF6B2C;
            --secondary-glow: rgba(255, 107, 44, 0.35);
            --accent: #8C6EFF;
            --text-main: #E6ECF2;
            --text-sub: #8B98A8;
            --text-weak: #5D6B7E;
            --success: #4CC38A;
            --error: #FF5B6A;
            --info: #4AA8FF;
            --radius-card: 14px;
            --radius-btn: 12px;
            --radius-input: 8px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.5);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "DIN Alternate", "Barlow Condensed", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 88px;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .3s, border-color .3s, background .3s, box-shadow .3s, transform .3s;
        }

        ul, ol {
            list-style: none;
        }

        button, input, select, textarea {
            font: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .nav-toggle:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: 4px;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 14, 19, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .site-header::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, var(--primary) 0%, rgba(200, 241, 53, 0.2) 50%, transparent 90%);
            pointer-events: none;
        }

        .main-nav {
            position: relative;
        }

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

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

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: #0B0E13;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 800;
            box-shadow: 0 0 14px rgba(200, 241, 53, 0.35);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: var(--text-main);
        }

        .logo-text .highlight {
            color: var(--primary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
        }

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

        .nav-menu ul li a {
            position: relative;
            display: block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            padding: 8px 12px;
            border-radius: 8px;
            transition: color .3s, background .3s;
        }

        .nav-menu ul li a:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-menu ul li a.active {
            color: var(--primary);
        }

        .nav-menu ul li a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 12px;
            right: 12px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 12px var(--primary-glow);
            border-radius: 2px;
        }

        .nav-cta {
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            border-radius: 8px;
        }

        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: transform .3s, opacity .3s;
        }

        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            transition: all .3s;
            border: none;
            cursor: pointer;
            text-align: center;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--secondary);
            color: #0B0E13;
            box-shadow: none;
        }

        .btn-primary:hover {
            background: #FF8A50;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px var(--secondary-glow);
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: none;
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-main);
            border: 1px solid #4A5868;
        }

        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-lg {
            height: 58px;
            padding: 0 44px;
            font-size: 17px;
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
            border-radius: 10px;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-bar {
            background: var(--bg-sub);
            padding: 100px 0 0;
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            padding: 16px 0;
        }

        .breadcrumb a {
            color: var(--text-sub);
            transition: color .3s;
        }

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

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

        .breadcrumb .current {
            color: var(--text-main);
            font-weight: 500;
        }

        /* ===== 文章主体 ===== */
        .article-main {
            padding: 48px 0 64px;
            background: var(--bg-main);
        }

        .article-card {
            max-width: 820px;
            margin: 0 auto;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 48px;
            box-shadow: var(--shadow-card);
        }

        .article-header {
            margin-bottom: 36px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--border);
        }

        .article-header h1 {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.28;
            color: var(--text-main);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .meta-item i {
            color: var(--primary);
            font-size: 13px;
        }

        /* ===== 正文排版 ===== */
        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: #C5D0DC;
        }

        .article-content > * {
            margin-bottom: 1.2em;
        }

        .article-content h2 {
            font-size: clamp(21px, 3vw, 26px);
            font-weight: 700;
            color: var(--text-main);
            margin-top: 40px;
            margin-bottom: 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary);
            border-radius: 2px;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-main);
            margin-top: 32px;
            margin-bottom: 14px;
        }

        .article-content p {
            margin-bottom: 18px;
            color: #C5D0DC;
        }

        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid transparent;
        }

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

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(200, 241, 53, 0.06);
            padding: 18px 22px;
            margin: 24px 0;
            border-radius: 0 10px 10px 0;
            color: var(--text-sub);
            font-style: normal;
        }

        .article-content img {
            border-radius: 10px;
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-content ul,
        .article-content ol {
            padding-left: 22px;
            margin: 16px 0 24px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 8px;
            color: #C5D0DC;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }

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

        .article-content table th {
            background: var(--bg-sub);
            color: var(--primary);
            font-weight: 600;
            white-space: nowrap;
        }

        .article-content table tr:nth-child(even) td {
            background: rgba(18, 24, 32, 0.6);
        }

        .article-content code {
            background: rgba(200, 241, 53, 0.12);
            color: var(--primary);
            padding: 2px 7px;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
        }

        .article-content pre {
            background: var(--bg-sub);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 18px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .article-content pre code {
            background: none;
            color: var(--text-main);
            padding: 0;
        }

        /* ===== 标签 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            padding-top: 24px;
            margin-top: 36px;
            border-top: 1px solid var(--border);
        }

        .tag-label {
            font-size: 14px;
            color: var(--text-sub);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 14px;
            background: rgba(200, 241, 53, 0.08);
            color: var(--primary);
            border: 1px solid rgba(200, 241, 53, 0.2);
            border-radius: 6px;
            font-size: 13px;
            transition: all .3s;
        }

        .tag:hover {
            background: rgba(200, 241, 53, 0.18);
            border-color: rgba(200, 241, 53, 0.5);
        }

        /* ===== 分享 ===== */
        .article-share {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .share-label {
            font-size: 14px;
            color: var(--text-sub);
            margin-right: 4px;
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 8px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 14px;
            color: var(--text-sub);
            transition: all .3s;
        }

        .share-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(200, 241, 53, 0.05);
        }

        .article-back {
            margin-top: 28px;
        }

        .article-back a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-sub);
            transition: color .3s;
        }

        .article-back a:hover {
            color: var(--primary);
        }

        /* ===== 空状态 ===== */
        .article-empty {
            max-width: 620px;
            margin: 60px auto 80px;
            text-align: center;
            background: var(--bg-card);
            border: 1px dashed var(--border-light);
            border-radius: var(--radius-card);
            padding: 60px 40px;
            box-shadow: var(--shadow-card);
        }

        .article-empty i {
            font-size: 56px;
            color: var(--text-weak);
            margin-bottom: 20px;
            display: block;
        }

        .article-empty h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .article-empty p {
            color: var(--text-sub);
            margin-bottom: 28px;
            font-size: 15px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 80px 0;
            background: var(--bg-sub);
            border-top: 1px solid var(--border);
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-title {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 700;
            color: var(--text-main);
            position: relative;
            padding-left: 16px;
            line-height: 1.3;
        }

        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--primary);
            border-radius: 2px;
        }

        .section-sub {
            margin-top: 8px;
            color: var(--text-sub);
            font-size: 15px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            display: block;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all .3s;
        }

        .related-card:hover {
            border-color: rgba(200, 241, 53, 0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .related-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

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

        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }

        .related-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 107, 44, 0.92);
            color: #ffffff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }

        .related-info {
            padding: 16px 20px 18px;
        }

        .related-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        /* ===== CTA ===== */
        .article-cta {
            padding: 80px 0;
            text-align: center;
            background: var(--bg-main);
            position: relative;
            overflow: hidden;
        }

        .article-cta::before {
            content: '';
            position: absolute;
            top: -30%;
            left: 22%;
            width: 480px;
            height: 480px;
            background: radial-gradient(circle, rgba(200, 241, 53, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-cta::after {
            content: '';
            position: absolute;
            bottom: -40%;
            right: 15%;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(255, 107, 44, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-cta .container {
            position: relative;
            z-index: 1;
        }

        .article-cta h2 {
            font-size: clamp(24px, 3vw, 36px);
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .article-cta p {
            color: var(--text-sub);
            margin-bottom: 32px;
            font-size: 16px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #080B0F;
            padding-top: 60px;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary) 0%, rgba(200, 241, 53, 0.4) 30%, transparent 80%);
        }

        .footer-top {
            padding-bottom: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-main);
            display: inline-block;
            margin-bottom: 16px;
        }

        .footer-brand .highlight {
            color: var(--primary);
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            max-width: 320px;
        }

        .footer-col h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-sub);
            transition: color .3s;
        }

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

        .footer-contact p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

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

        .footer-contact p a {
            color: var(--text-sub);
            transition: color .3s;
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 18px 0;
            background: #06090C;
        }

        .footer-bottom-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-weak);
        }

        .footer-bottom p a {
            color: var(--text-sub);
            margin: 0 8px;
            transition: color .3s;
        }

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

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .nav-menu {
                gap: 16px;
            }

            .nav-menu ul {
                gap: 2px;
            }

            .nav-menu ul li a {
                padding: 8px 8px;
                font-size: 14px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-inner {
                height: 64px;
            }

            .nav-menu {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(11, 14, 19, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 20px 24px;
                gap: 0;
                border-bottom: 2px solid var(--primary);
                border-top: 1px solid var(--border);
                box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
                transform: translateY(-16px);
                opacity: 0;
                visibility: hidden;
                transition: all .35s ease;
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }

            .nav-menu.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-menu ul {
                flex-direction: column;
                width: 100%;
                gap: 0;
            }

            .nav-menu ul li {
                width: 100%;
            }

            .nav-menu ul li a {
                display: block;
                width: 100%;
                padding: 14px 4px;
                border-bottom: 1px solid rgba(35, 44, 56, 0.7);
                font-size: 16px;
                color: var(--text-sub);
            }

            .nav-menu ul li a:hover {
                background: transparent;
                color: var(--primary);
            }

            .nav-menu ul li a.active {
                color: var(--primary);
            }

            .nav-menu ul li a.active::after {
                left: 0;
                right: 0;
                bottom: -1px;
            }

            .nav-cta {
                margin-top: 18px;
                width: 100%;
                text-align: center;
            }

            .logo-text {
                font-size: 18px;
            }

            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .breadcrumb-bar {
                padding: 88px 0 0;
            }

            .article-main {
                padding: 32px 0 48px;
            }

            .article-card {
                padding: 24px 18px;
                border-radius: 12px;
            }

            .article-header h1 {
                font-size: 24px;
                line-height: 1.35;
            }

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

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

            .article-content h2 {
                font-size: 20px;
            }

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

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

            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .section-head {
                margin-bottom: 24px;
            }

            .article-cta {
                padding: 56px 0;
            }

            .btn-lg {
                height: 52px;
                padding: 0 32px;
                font-size: 16px;
            }

            .footer-top {
                padding-bottom: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .article-share {
                gap: 10px;
            }

            .share-btn {
                padding: 7px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .article-card {
                padding: 20px 14px;
            }

            .article-cta p {
                font-size: 14px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B0E13;
            --bg-secondary: #121820;
            --bg-card: #161D26;
            --border-color: #232C38;
            --accent-main: #C8F135;
            --accent-orange: #FF6B2C;
            --accent-purple: #8C6EFF;
            --text-primary: #E6ECF2;
            --text-secondary: #8B98A8;
            --text-muted: #5D6B7E;
            --success: #4CC38A;
            --error: #FF5B6A;
            --info: #4AA8FF;
            --radius-card: 14px;
            --radius-btn: 12px;
            --radius-badge: 4px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 16px 40px rgba(0, 0, 0, 0.5);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "sans-serif";
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--accent-main);
        }
        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        h4,
        figure {
            margin: 0;
            padding: 0;
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 2px solid var(--accent-main);
            outline-offset: 3px;
            border-radius: var(--radius-badge);
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section-head {
            margin-bottom: 44px;
        }
        .section-head h2 {
            font-size: clamp(22px, 3vw, 36px);
            font-weight: 700;
            line-height: 1.3;
            padding-left: 14px;
            border-left: 4px solid var(--accent-main);
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-secondary);
            font-size: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            line-height: 1.2;
            cursor: pointer;
            transition: all .25s ease;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: var(--accent-orange);
            color: #0B0E13;
            box-shadow: 0 4px 16px rgba(255, 107, 44, 0.25);
        }
        .btn-primary:hover {
            background: #FF8A50;
            color: #0B0E13;
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(255, 107, 44, 0.4);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid #4A5868;
            color: #fff;
        }
        .btn-secondary:hover {
            border-color: var(--accent-main);
            color: var(--accent-main);
            transform: translateY(-2px);
        }
        .btn-cta-large {
            height: 56px;
            padding: 0 40px;
            font-size: 18px;
            background: linear-gradient(135deg, var(--accent-main), #6CE0A8);
            color: #0B0E13;
            border-radius: var(--radius-btn);
            box-shadow: 0 6px 24px rgba(200, 241, 53, 0.3);
            transition: all .25s ease;
        }
        .btn-cta-large:hover {
            color: #0B0E13;
            box-shadow: 0 10px 40px rgba(200, 241, 53, 0.5);
            transform: translateY(-2px);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 14, 19, 0.92);
            backdrop-filter: blur(10px);
            height: 72px;
            border-bottom: 1px solid transparent;
        }
        .site-header::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 1px;
            background: linear-gradient(90deg, var(--accent-main), transparent 70%);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 28px;
            background: rgba(200, 241, 53, 0.15);
            color: var(--accent-main);
            font-weight: 800;
            font-size: 14px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(200, 241, 53, 0.3);
        }
        .brand-name {
            font-size: 20px;
            font-weight: 800;
            white-space: nowrap;
            letter-spacing: 0.2px;
        }
        .brand-name .highlight {
            color: var(--accent-main);
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
        }
        .main-nav a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: all .25s ease;
        }
        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.04);
        }
        .main-nav a.active {
            color: var(--accent-main);
            font-weight: 600;
            background: rgba(200, 241, 53, 0.08);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            background: var(--accent-main);
            box-shadow: 0 0 12px rgba(200, 241, 53, 0.6);
            border-radius: 2px;
        }
        .header-actions {
            flex-shrink: 0;
        }
        .btn-header {
            padding: 10px 22px;
            font-size: 14px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            background: transparent;
            border-radius: 8px;
            cursor: pointer;
            border: 1px solid var(--border-color);
            gap: 5px;
            flex-shrink: 0;
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all .3s ease;
        }
        .nav-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .guide-hero {
            position: relative;
            background: linear-gradient(90deg, rgba(11, 14, 19, 0.96) 0%, rgba(11, 14, 19, 0.82) 55%, rgba(11, 14, 19, 0.5) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 120px 0 70px;
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .hero-watermark {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: clamp(90px, 16vw, 200px);
            font-weight: 900;
            color: transparent;
            -webkit-text-stroke: 1px rgba(200, 241, 53, 0.1);
            white-space: nowrap;
            pointer-events: none;
            z-index: 0;
            letter-spacing: 4px;
            user-select: none;
            font-family: "Barlow Condensed", var(--font-sans);
        }
        .guide-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 107, 44, 0.12);
            border: 1px solid rgba(255, 107, 44, 0.3);
            color: var(--accent-orange);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 40px;
            margin-bottom: 22px;
            letter-spacing: 0.5px;
        }
        .guide-hero h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.12;
            margin-bottom: 18px;
            color: #fff;
        }
        .guide-hero .hero-subtitle {
            font-size: clamp(16px, 2vw, 20px);
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .guide-hero .hero-desc {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.75;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 48px;
        }
        .hero-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            max-width: 760px;
        }
        .stat-item {
            background: rgba(22, 29, 38, 0.6);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px 20px;
            text-align: center;
            backdrop-filter: blur(4px);
        }
        .stat-num {
            display: block;
            font-size: 30px;
            font-weight: 800;
            color: var(--accent-main);
            font-family: "Barlow Condensed", var(--font-sans);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .capsule-section {
            padding: 36px 0 10px;
        }
        .capsule-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        .capsule {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 24px;
            border-radius: 40px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all .25s ease;
            min-height: 44px;
        }
        .capsule i {
            font-size: 14px;
            color: var(--accent-main);
        }
        .capsule:hover {
            border-color: rgba(200, 241, 53, 0.5);
            color: var(--accent-main);
            transform: translateY(-2px);
        }
        .capsule.active {
            background: rgba(255, 107, 44, 0.12);
            border-color: rgba(255, 107, 44, 0.4);
            color: var(--accent-orange);
            font-weight: 600;
        }
        .capsule.active i {
            color: var(--accent-orange);
        }

        .guide-cards-section {
            padding: 70px 0 50px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            border-color: rgba(200, 241, 53, 0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .card-media {
            position: relative;
            height: 240px;
            overflow: hidden;
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }
        .guide-card:hover .card-media img {
            transform: scale(1.05);
        }
        .card-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 107, 44, 0.9);
            color: #0B0E13;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
        }
        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            flex: 1;
        }
        .card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
        }
        .card-body>p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .step-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin: 4px 0;
        }
        .step-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }
        .step-list li::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-main);
            margin-top: 8px;
            flex-shrink: 0;
            box-shadow: 0 0 8px rgba(200, 241, 53, 0.5);
        }
        .link-more {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent-main);
            font-size: 14px;
            font-weight: 600;
            transition: gap .25s ease;
            padding-top: 8px;
        }
        .link-more:hover {
            gap: 14px;
            color: #d9f75e;
        }

        .guide-lists-section {
            padding: 50px 0 70px;
        }
        .list-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px;
            height: 100%;
            box-shadow: var(--shadow-card);
        }
        .list-panel h2 {
            font-size: 22px;
            font-weight: 700;
            padding-left: 14px;
            border-left: 4px solid var(--accent-main);
            margin-bottom: 24px;
            line-height: 1.4;
        }
        .check-list {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .check-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(35, 44, 56, 0.6);
            transition: background .2s ease;
        }
        .check-item:last-child {
            border-bottom: none;
        }
        .check-item:hover {
            background: rgba(255, 255, 255, 0.02);
        }
        .check-item i {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(200, 241, 53, 0.1);
            color: var(--accent-main);
            font-size: 14px;
            margin-top: 2px;
        }
        .check-text {
            flex: 1;
        }
        .check-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .check-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .faq-section {
            padding: 70px 0;
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 50px;
        }
        .faq-intro h2 {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            padding-left: 14px;
            border-left: 4px solid var(--accent-main);
        }
        .faq-intro p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            overflow: hidden;
            transition: border-color .3s ease;
        }
        .faq-item[open] {
            border-color: rgba(200, 241, 53, 0.4);
        }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            min-height: 44px;
            list-style: none;
            transition: color .25s ease;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            flex-shrink: 0;
            font-size: 22px;
            font-weight: 400;
            color: var(--accent-main);
            transition: transform .3s ease;
            line-height: 1;
        }
        .faq-item[open] summary::after {
            content: '−';
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }

        .cta-section {
            position: relative;
            padding: 90px 0;
            background: linear-gradient(135deg, #0B0E13 0%, #121820 60%, #0B0E13 100%), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            top: -180px;
            right: -120px;
            background: radial-gradient(circle, rgba(200, 241, 53, 0.15), transparent 70%);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            width: 360px;
            height: 360px;
            bottom: -160px;
            left: -100px;
            background: radial-gradient(circle, rgba(255, 107, 44, 0.12), transparent 70%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(26px, 3.5vw, 42px);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .cta-section>div>p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            margin-bottom: 28px;
        }
        .cta-trust {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
        }
        .cta-trust span {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .cta-trust span::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
        }

        .site-footer {
            background: #080B0F;
            position: relative;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-main), #6CE0A8 40%, transparent);
        }
        .footer-top {
            padding: 56px 0 30px;
            background: var(--bg-secondary);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
        }
        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-bottom: 14px;
        }
        .footer-brand .logo-text .highlight {
            color: var(--accent-main);
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
            max-width: 300px;
        }
        .footer-col h3 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: all .25s ease;
        }
        .footer-col ul a:hover {
            color: var(--accent-main);
            padding-left: 4px;
        }
        .footer-contact p {
            color: var(--text-secondary);
            font-size: 14px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact p i {
            width: 20px;
            color: var(--accent-main);
        }
        .footer-contact p a {
            color: var(--text-secondary);
        }
        .footer-contact p a:hover {
            color: var(--accent-main);
        }
        .footer-bottom {
            border-top: 1px solid rgba(35, 44, 56, 0.6);
            padding: 24px 0;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .footer-bottom p a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-bottom p a:hover {
            color: var(--accent-main);
        }

        @media (max-width: 1023px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                gap: 12px;
            }
            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 12px;
            }
            .brand-name {
                font-size: 17px;
            }
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(11, 14, 19, 0.97);
                border-top: 2px solid var(--accent-main);
                padding: 12px 16px 20px;
                transform: translateY(-150%);
                opacity: 0;
                transition: all .3s ease-in-out;
                visibility: hidden;
                z-index: 99;
                box-shadow: 0 30px 40px rgba(0, 0, 0, 0.5);
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 4px;
                align-items: stretch;
            }
            .main-nav a {
                padding: 14px 16px;
                font-size: 15px;
                line-height: 1.4;
            }
            .main-nav a.active::after {
                bottom: 8px;
                left: 16px;
                right: auto;
                width: 30px;
            }
            .header-actions {
                margin-left: auto;
            }
            .btn-header {
                padding: 10px 16px;
                font-size: 13px;
            }
            .guide-hero {
                padding: 100px 0 50px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 5px 12px;
            }
            .guide-hero h1 {
                font-size: 30px;
            }
            .guide-hero .hero-subtitle {
                font-size: 15px;
            }
            .hero-actions {
                gap: 12px;
                margin-bottom: 36px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 14px 12px;
            }
            .stat-num {
                font-size: 24px;
            }
            .capsule-row {
                gap: 10px;
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 8px;
            }
            .capsule {
                white-space: nowrap;
                padding: 10px 18px;
                font-size: 13px;
            }
            .guide-cards-section {
                padding: 50px 0 30px;
            }
            .guide-card {
                margin-bottom: 20px;
            }
            .card-media {
                height: 190px;
            }
            .guide-lists-section {
                padding: 30px 0 50px;
            }
            .list-panel {
                padding: 24px 20px;
                margin-bottom: 20px;
            }
            .faq-section {
                padding: 50px 0;
            }
            .faq-item summary {
                padding: 16px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .cta-trust {
                gap: 12px;
                flex-direction: column;
                align-items: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-brand p {
                max-width: none;
            }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-bottom p {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .brand-name {
                font-size: 15px;
            }
            .btn-header {
                padding: 8px 12px;
                font-size: 12px;
            }
            .guide-hero h1 {
                font-size: 26px;
            }
            .guide-hero .hero-subtitle {
                font-size: 14px;
            }
            .hero-stats {
                grid-template-columns: 1fr 1fr;
            }
            .stat-num {
                font-size: 20px;
            }
            .stat-label {
                font-size: 12px;
            }
            .btn-cta-large {
                font-size: 16px;
                height: 52px;
            }
        }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --bg-primary: #0B0E13;
            --bg-secondary: #121820;
            --bg-card: #161D26;
            --bg-input: #0F141B;
            --border-card: #232C38;
            --accent-green: #C8F135;
            --accent-orange: #FF6B2C;
            --accent-purple: #8C6EFF;
            --text-primary: #E6ECF2;
            --text-secondary: #8B98A8;
            --text-muted: #5D6B7E;
            --success: #4CC38A;
            --error: #FF5B6A;
            --info: #4AA8FF;
            --radius-card: 14px;
            --radius-btn: 12px;
            --radius-input: 8px;
            --radius-badge: 4px;
            --shadow-card: 0 10px 30px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 14px 40px rgba(0,0,0,0.5);
            --glow-green: 0 0 20px rgba(200,241,53,0.25);
            --glow-orange: 0 0 24px rgba(255,107,44,0.35);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "sans-serif";
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

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

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.2;
            margin: 0;
            font-weight: 700;
        }

        p {
            margin: 0;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s ease;
        }

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

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

        input,
        textarea {
            font-family: inherit;
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

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

        /* ========== 顶部导航 ========== */
        .main-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 72px;
            background: rgba(11, 14, 19, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(35, 44, 56, 0.6);
        }

        .main-header::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            height: 1px;
            width: 100%;
            background: linear-gradient(90deg, rgba(200, 241, 53, 0.7), rgba(200, 241, 53, 0.1) 60%, transparent);
            pointer-events: none;
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

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

        .logo-badge {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-orange));
            color: #0B0E13;
            font-size: 13px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo .highlight {
            color: var(--accent-green);
        }

        .main-nav ul {
            display: flex;
            gap: 28px;
            align-items: center;
        }

        .main-nav a {
            display: inline-block;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            position: relative;
            transition: color 0.3s ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-green);
            box-shadow: var(--glow-green);
            transition: width 0.3s ease, opacity 0.3s ease;
            opacity: 0;
        }

        .main-nav a:hover {
            color: var(--text-primary);
        }

        .main-nav a:hover::after {
            width: 100%;
            opacity: 0.6;
        }

        .main-nav a.active {
            color: var(--accent-green);
        }

        .main-nav a.active::after {
            width: 100%;
            opacity: 1;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .btn-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-orange);
            color: #0B0E13;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 14px;
            line-height: 1;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .btn-login:hover {
            background: #FF8A50;
            box-shadow: var(--glow-orange);
            transform: translateY(-2px);
        }

        .btn-login:active {
            transform: scale(0.98);
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 22px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-card);
            background: rgba(18, 24, 32, 0.8);
        }

        /* ========== 按钮体系 ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent-orange);
            color: #0B0E13;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            background: #FF8A50;
            transform: translateY(-2px);
            box-shadow: var(--glow-orange);
        }

        .btn-primary:active {
            transform: scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid #4A5868;
            padding: 14px 32px;
            border-radius: var(--radius-btn);
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-secondary:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, #C8F135 0%, #4CC38A 100%);
            color: #0B0E13;
            font-size: 18px;
            font-weight: 800;
            padding: 18px 48px;
            border-radius: var(--radius-btn);
            line-height: 1;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-cta-large:hover {
            box-shadow: var(--glow-green);
            transform: translateY(-2px);
        }

        /* ========== Page Hero（分类横幅） ========== */
        .page-hero {
            position: relative;
            padding: 150px 0 72px;
            background:
                linear-gradient(90deg, rgba(11, 14, 19, 0.96) 0%, rgba(11, 14, 19, 0.78) 50%, rgba(11, 14, 19, 0.4) 100%),
                url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: linear-gradient(135deg, rgba(200, 241, 53, 0.06), transparent 65%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255, 107, 44, 0.12);
            color: var(--accent-orange);
            padding: 5px 12px;
            border-radius: var(--radius-badge);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .page-hero h1 {
            font-size: clamp(32px, 5vw, 56px);
            font-weight: 800;
            line-height: 1.12;
            color: var(--text-primary);
        }

        .hero-desc {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 640px;
            margin: 20px 0 32px;
            line-height: 1.75;
        }

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

        /* ========== 标题风格 ========== */
        .section-title {
            font-size: clamp(22px, 3vw, 36px);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 12px;
        }

        .section-title::before {
            content: '';
            flex-shrink: 0;
            width: 4px;
            height: 28px;
            background: var(--accent-green);
            border-radius: 4px;
            box-shadow: var(--glow-green);
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 560px;
            margin-bottom: 36px;
        }

        /* ========== 今日焦点（大封面首条） ========== */
        .featured-section {
            padding: clamp(64px, 8vw, 110px) 0 0;
        }

        .featured-card {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .featured-card:hover {
            border-color: rgba(200, 241, 53, 0.45);
            box-shadow: var(--shadow-card-hover);
        }

        .featured-cover {
            position: relative;
            min-height: 320px;
            background: var(--bg-secondary);
        }

        .featured-cover img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 107, 44, 0.9);
            color: #0B0E13;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-badge);
            letter-spacing: 0.5px;
        }

        .featured-body {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
        }

        .featured-body h3 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.35;
        }

        .featured-body p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        .featured-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .featured-meta i {
            color: var(--accent-green);
            margin-right: 4px;
        }

        /* ========== 热门赛事推荐网格（3列不等宽） ========== */
        .match-grid-section {
            padding: clamp(64px, 8vw, 110px) 0;
        }

        .match-grid {
            margin: 0 -12px;
            flex-wrap: wrap;
        }

        .match-grid .cell {
            padding: 0 12px;
        }

        .match-grid .cell:nth-child(1),
        .match-grid .cell:nth-child(2),
        .match-grid .cell:nth-child(3),
        .match-grid .cell:nth-child(4) {
            margin-bottom: 24px;
        }

        .match-card {
            background: var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }

        .match-card:hover {
            border-color: rgba(200, 241, 53, 0.5);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .match-card .card-cover {
            position: relative;
            overflow: hidden;
            background: var(--bg-secondary);
        }

        .match-card-featured .card-cover {
            aspect-ratio: 16 / 8;
        }

        .match-card-small .card-cover {
            aspect-ratio: 16 / 10;
        }

        .match-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .match-card:hover .card-cover img {
            transform: scale(1.03);
        }

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

        .match-card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .match-card .card-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .match-card .card-footer {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border-card);
            padding-top: 14px;
        }

        .match-card .date {
            color: var(--text-muted);
            font-size: 13px;
        }

        .match-card .more-link {
            color: var(--accent-green);
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s;
        }

        .match-card .more-link:hover {
            gap: 10px;
        }

        .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 107, 44, 0.9);
            color: #0B0E13;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-badge);
        }

        /* CTA 卡片 */
        .match-cta-card {
            background: linear-gradient(135deg, rgba(200, 241, 53, 0.08), rgba(255, 107, 44, 0.06)), var(--bg-card);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-card);
            height: 100%;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            gap: 16px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .match-cta-card:hover {
            border-color: rgba(200, 241, 53, 0.5);
            box-shadow: var(--shadow-card-hover);
        }

        .match-cta-card h3 {
            font-size: 22px;
            font-weight: 700;
        }

        .match-cta-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ========== 数据条 ========== */
        .data-strip {
            border-top: 1px solid var(--border-card);
            border-bottom: 1px solid var(--border-card);
            background: var(--bg-secondary);
            padding: 48px 0;
        }

        .data-strip-inner {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .data-item {
            text-align: center;
            padding: 12px 8px;
        }

        .data-number {
            font-family: 'DIN Alternate', 'Barlow Condensed', sans-serif;
            font-size: 40px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.1;
            letter-spacing: 1px;
        }

        .data-label {
            color: var(--text-secondary);
            font-size: 14px;
            margin-top: 6px;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: clamp(64px, 8vw, 110px) 0;
        }

        .faq-layout {
            display: grid;
            grid-template-columns: 0.7fr 1.3fr;
            gap: 40px;
            align-items: start;
        }

        .faq-intro p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-top: 16px;
            line-height: 1.8;
        }

        .faq-wrap {
            background: var(--bg-secondary);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-card);
            padding: 8px 24px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-card);
            padding: 20px 0;
        }

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

        .faq-item summary {
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            list-style: none;
            color: var(--text-primary);
        }

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

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

        .faq-icon-plus,
        .faq-icon-minus {
            font-size: 24px;
            font-weight: 400;
            color: var(--accent-green);
            line-height: 1;
            flex-shrink: 0;
            transition: color 0.3s;
        }

        .faq-icon-minus {
            display: none;
        }

        .faq-item[open] .faq-icon-plus {
            display: none;
        }

        .faq-item[open] .faq-icon-minus {
            display: inline;
        }

        .faq-answer {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            padding-top: 14px;
        }

        /* ========== CTA ========== */
        .cta-section {
            position: relative;
            padding: clamp(64px, 8vw, 110px) 0;
            background: var(--bg-primary);
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(200, 241, 53, 0.14), transparent 60%);
            top: -120px;
            right: -120px;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 107, 44, 0.12), transparent 60%);
            bottom: -140px;
            left: 20px;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-inner h2 {
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-inner p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 32px;
        }

        .cta-trust {
            margin-top: 24px;
            display: flex;
            justify-content: center;
            gap: 20px;
            color: var(--text-muted);
            font-size: 13px;
            flex-wrap: wrap;
        }

        .cta-trust span::before {
            content: '•';
            color: var(--accent-green);
            margin-right: 6px;
        }

        /* ========== 来源说明 ========== */
        .source-note {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-card);
            padding: 24px 0 48px;
        }

        .source-note p {
            color: var(--text-muted);
            font-size: 13px;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
            line-height: 1.8;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            position: relative;
            background: #080B0F;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-green), rgba(200, 241, 53, 0.2) 40%, transparent);
        }

        .footer-top {
            border-bottom: 1px solid var(--border-card);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding: 56px 0 40px;
        }

        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
        }

        .footer-brand .highlight {
            color: var(--accent-green);
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.75;
            margin-top: 14px;
            max-width: 280px;
        }

        .footer-col h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

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

        .footer-col ul a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color 0.3s;
        }

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

        .footer-contact p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 8px;
        }

        .footer-contact i {
            color: var(--accent-green);
            margin-right: 6px;
        }

        .footer-contact a {
            color: var(--text-muted);
            transition: color 0.3s;
        }

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

        .footer-bottom {
            padding: 20px 0;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
        }

        .footer-bottom a {
            color: var(--text-muted);
            margin-left: 16px;
            transition: color 0.3s;
        }

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

        /* ========== 响应式 ========== */
        @media (max-width: 900px) {
            .featured-card {
                grid-template-columns: 1fr;
            }

            .featured-cover {
                min-height: 240px;
            }

            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .data-strip-inner {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .header-inner {
                padding: 0 16px;
            }

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

            .logo-badge {
                width: 24px;
                height: 24px;
                font-size: 11px;
            }

            .main-nav {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(11, 14, 19, 0.97);
                border-top: 1px solid var(--border-card);
                border-bottom: 1px solid var(--border-card);
                padding: 8px 24px 20px;
                display: none;
                z-index: 999;
            }

            .main-nav.open {
                display: block;
            }

            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }

            .main-nav a {
                display: flex;
                height: 44px;
                align-items: center;
                width: 100%;
                font-size: 16px;
                border-bottom: 1px solid rgba(35, 44, 56, 0.5);
            }

            .main-nav a:last-of-type {
                border-bottom: none;
            }

            .menu-toggle {
                display: inline-flex;
            }

            .btn-login {
                padding: 8px 14px;
                font-size: 13px;
            }

            .nav-cta {
                gap: 8px;
            }

            .page-hero {
                padding: 110px 0 48px;
            }

            .hero-inner {
                padding: 0 16px;
            }

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

            .hero-btns {
                gap: 10px;
            }

            .btn-primary,
            .btn-secondary {
                padding: 12px 20px;
                font-size: 14px;
            }

            .featured-body {
                padding: 24px;
            }

            .featured-body h3 {
                font-size: 20px;
            }

            .featured-meta {
                flex-direction: column;
                gap: 8px;
            }

            .match-grid-section,
            .faq-section {
                padding: 56px 0;
            }

            .match-cta-card {
                padding: 24px;
            }

            .data-strip {
                padding: 32px 0;
            }

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

            .data-label {
                font-size: 13px;
            }

            .cta-trust {
                gap: 12px;
                font-size: 12px;
            }

            .btn-cta-large {
                padding: 16px 28px;
                font-size: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 0 24px;
            }

            .footer-bottom a {
                margin-left: 0;
                margin-right: 16px;
            }
        }

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

            .data-strip-inner {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .featured-cover {
                min-height: 200px;
            }

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

            .section-title {
                font-size: 22px;
            }
        }

/* roulang page: category4 */
/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: #0B0E13;
    color: #E6ECF2;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s, border-color .25s, background .25s, box-shadow .25s, transform .25s; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }
:focus-visible { outline: 2px solid #C8F135; outline-offset: 2px; }

/* ===== Variables ===== */
:root {
    --bg-main: #0B0E13;
    --bg-secondary: #121820;
    --bg-card: #161D26;
    --border-color: #232C38;
    --primary: #C8F135;
    --accent: #FF6B2C;
    --purple: #8C6EFF;
    --text-main: #E6ECF2;
    --text-secondary: #8B98A8;
    --text-weak: #5D6B7E;
    --success: #4CC38A;
    --error: #FF5B6A;
    --info: #4AA8FF;
    --radius-card: 14px;
    --radius-btn: 12px;
    --radius-input: 8px;
    --radius-badge: 4px;
    --shadow-card: 0 10px 30px rgba(0,0,0,0.35);
    --shadow-hover: 0 14px 40px rgba(0,0,0,0.5);
    --glow-primary: 0 0 20px rgba(200,241,53,0.25);
    --glow-accent: 0 0 20px rgba(255,107,44,0.35);
    --container-w: 1200px;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
}

/* ===== Header / Nav ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(11,14,19,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    border-image: linear-gradient(90deg, #C8F135, rgba(200,241,53,0.2), transparent) 1;
    z-index: 1000;
    transition: box-shadow .3s;
}
.site-header.scrolled {
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: #C8F135;
    color: #0B0E13;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "DIN Alternate", "Barlow Condensed", sans-serif;
}
.logo-text {
    font-size: 20px;
    font-weight: 800;
    color: #E6ECF2;
    white-space: nowrap;
    letter-spacing: 0.5px;
}
.logo-text .highlight {
    color: #C8F135;
}
.main-nav ul {
    display: flex;
    align-items: center;
    gap: 8px;
}
.main-nav a {
    display: inline-block;
    padding: 8px 16px;
    font-size: 15px;
    color: var(--text-secondary);
    border-radius: 8px;
    position: relative;
    transition: color .25s, background .25s;
}
.main-nav a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    box-shadow: 0 0 12px rgba(200,241,53,0.7);
    transition: width .3s;
    border-radius: 2px;
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { width: 60%; opacity: 0.6; }
.main-nav a.active {
    color: var(--primary);
    text-shadow: 0 0 12px rgba(200,241,53,0.35);
}
.main-nav a.active::after {
    width: 100%;
    opacity: 1;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-btn);
    font-weight: 700;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
    border: none;
    transition: all .25s;
    text-align: center;
}
.btn-cta {
    background: var(--accent);
    color: #0B0E13;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 700;
}
.btn-cta:hover {
    background: #FF8A50;
    box-shadow: 0 0 20px rgba(255,107,44,0.45);
    transform: translateY(-1px);
}
.btn-cta:active { transform: scale(0.98); }
.btn-secondary {
    background: transparent;
    border: 1px solid #4A5868;
    color: #E6ECF2;
}
.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}
.btn-large {
    height: 56px;
    padding: 0 44px;
    font-size: 18px;
    background: linear-gradient(135deg, #C8F135, #4CC38A);
    color: #0B0E13;
    box-shadow: 0 8px 30px rgba(200,241,53,0.2);
}
.btn-large:hover {
    box-shadow: 0 0 30px rgba(200,241,53,0.45), 0 8px 30px rgba(200,241,53,0.3);
    transform: translateY(-2px);
    color: #0B0E13;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
}
.nav-toggle span {
    display: block;
    height: 2px;
    background: #E6ECF2;
    border-radius: 2px;
    transition: all .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Mobile Nav ===== */
@media (max-width: 960px) {
    .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #0B0E13;
        border-bottom: 1px solid #C8F135;
        padding: 20px 16px;
        transform: translateY(-120%);
        transition: transform .3s ease;
        z-index: 999;
        box-shadow: 0 20px 40px rgba(0,0,0,0.6);
    }
    .main-nav.nav-open {
        transform: translateY(0);
    }
    .main-nav ul {
        flex-direction: column;
        align-items: stretch;
    }
    .main-nav a {
        display: block;
        padding: 14px 16px;
        line-height: 1.4;
        font-size: 16px;
        border-left: 2px solid transparent;
    }
    .main-nav a.active {
        border-left-color: var(--primary);
        background: rgba(200,241,53,0.06);
    }
    .main-nav a::after { display: none; }
    .nav-toggle { display: flex; }
    .header-actions .btn-cta { padding: 9px 16px; font-size: 14px; }
}

/* ===== Hero ===== */
.cat-hero {
    position: relative;
    padding: 180px 0 100px;
    background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    overflow: hidden;
}
.cat-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(11,14,19,0.95) 0%, rgba(11,14,19,0.8) 50%, rgba(11,14,19,0.4) 100%);
}
.cat-hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(200,241,53,0.15), transparent 60%);
    pointer-events: none;
}
.cat-hero .container {
    position: relative;
    z-index: 2;
}
.cat-hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.12;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.cat-hero h1 span {
    color: var(--primary);
}
.cat-hero p.lead {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 640px;
    margin-bottom: 30px;
}
.cat-hero .hero-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-top: 12px;
}
.cat-hero .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,107,44,0.12);
    color: var(--accent);
    font-size: 13px;
    padding: 5px 14px;
    border-radius: 4px;
    font-weight: 600;
}
@media (max-width: 768px) {
    .cat-hero { padding: 140px 0 70px; }
}

/* ===== Section Common ===== */
.section {
    padding: clamp(64px, 8vw, 110px) 0;
}
.section-secondary {
    background: var(--bg-secondary);
}
.section-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(200,241,53,0.08);
    border-radius: 4px;
    padding: 5px 14px;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.section h2 {
    font-size: clamp(22px, 3vw, 36px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    position: relative;
    padding-left: 18px;
}
.section h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 4px;
    background: var(--primary);
    border-radius: 4px;
    box-shadow: 0 0 12px rgba(200,241,53,0.5);
}
.section .section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 680px;
    margin-bottom: 48px;
    line-height: 1.8;
}

/* ===== Timeline ===== */
.timeline-section {
    position: relative;
}
.timeline-wrap {
    position: relative;
    max-width: 980px;
    margin: 0 auto;
}
.timeline-wrap::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 20px;
    bottom: 20px;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(180deg, rgba(200,241,53,0.7), rgba(200,241,53,0.05));
}
.timeline-item {
    position: relative;
    width: 50%;
    padding: 24px 44px 40px 0;
}
.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding: 24px 0 40px 44px;
}
.timeline-marker {
    position: absolute;
    right: -19px;
    top: 26px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #0B0E13;
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "DIN Alternate", "Barlow Condensed", sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    box-shadow: 0 0 16px rgba(200,241,53,0.4);
    z-index: 2;
}
.timeline-item:nth-child(even) .timeline-marker {
    right: auto;
    left: -19px;
}
.timeline-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 26px;
    box-shadow: var(--shadow-card);
    transition: border-color .3s, box-shadow .3s, transform .3s;
}
.timeline-card:hover {
    border-color: rgba(200,241,53,0.5);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.timeline-card .tl-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(200,241,53,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
    margin-bottom: 16px;
}
.timeline-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #fff;
}
.timeline-card p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 0;
}
@media (max-width: 768px) {
    .timeline-wrap::before {
        left: 14px;
    }
    .timeline-item, .timeline-item:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding: 18px 0 30px 46px;
    }
    .timeline-marker, .timeline-item:nth-child(even) .timeline-marker {
        left: 0;
        right: auto;
        top: 22px;
    }
}

/* ===== Coverage / Features ===== */
.coverage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.coverage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 30px 26px;
    box-shadow: var(--shadow-card);
    transition: border-color .3s, box-shadow .3s, transform .3s;
}
.coverage-card:hover {
    border-color: rgba(200,241,53,0.5);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.coverage-card .cov-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 18px;
    background: linear-gradient(135deg, rgba(200,241,53,0.12), rgba(140,110,255,0.05));
    color: var(--primary);
}
.coverage-card h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #fff;
}
.coverage-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 0;
}
@media (max-width: 768px) {
    .coverage-grid { grid-template-columns: 1fr; }
}
@media (min-width: 769px) and (max-width: 1023px) {
    .coverage-grid { grid-template-columns: 1fr 1fr; }
    .coverage-card:last-child { grid-column: span 2; }
}

/* ===== Use Cases ===== */
.use-cases-section {
    background: var(--bg-secondary);
}
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.use-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-card);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow-card);
    transition: border-color .3s, box-shadow .3s, transform .3s;
}
.use-card:hover {
    border-color: rgba(255,107,44,0.5);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.use-card .use-num {
    font-family: "DIN Alternate", "Barlow Condensed", sans-serif;
    font-size: 42px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 14px;
    display: block;
    opacity: 0.8;
}
.use-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
}
.use-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 0;
}
@media (max-width: 768px) {
    .use-cases-grid { grid-template-columns: 1fr; }
}

/* ===== FAQ ===== */
.faq-section {
    background: #0B0E13;
}
.faq-wrap {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-secondary);
    border-radius: var(--radius-card);
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: border-color .3s;
}
.faq-item.active {
    border-color: rgba(200,241,53,0.35);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #E6ECF2;
    transition: background .3s;
    user-select: none;
}
.faq-question:hover {
    background: rgba(200,241,53,0.03);
}
.faq-question .faq-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border-radius: 6px;
    background: rgba(200,241,53,0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: transform .3s, background .3s;
}
.faq-item.active .faq-icon {
    background: var(--primary);
    color: #0B0E13;
}
.faq-answer {
    display: none;
    padding: 0 24px 20px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 0;
}
.faq-answer p {
    padding-top: 16px;
    margin-bottom: 0;
}
.faq-item.active .faq-answer {
    display: block;
}

/* ===== CTA ===== */
.cta-section {
    position: relative;
    padding: 100px 0;
    background: var(--bg-secondary);
    overflow: hidden;
    text-align: center;
}
.cta-section::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(200,241,53,0.12), transparent 60%);
    top: -100px;
    left: -100px;
}
.cta-section::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,107,44,0.1), transparent 60%);
    bottom: -120px;
    right: -100px;
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-size: clamp(24px, 3.5vw, 38px);
    font-weight: 800;
    margin-bottom: 18px;
    color: #fff;
}
.cta-section h2 span {
    color: var(--primary);
}
.cta-section p.cta-sub {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto 34px;
    line-height: 1.8;
}
.cta-section .cta-actions {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.cta-section .cta-trust {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-weak);
    margin-top: 24px;
}
.cta-section .cta-trust i {
    color: var(--primary);
    margin-right: 4px;
}

/* ===== Footer ===== */
.site-footer {
    background: #080B0F;
    border-top: 3px solid transparent;
    border-image: linear-gradient(90deg, #C8F135, rgba(200,241,53,0.2), transparent) 1;
}
.footer-top {
    padding: 60px 0 40px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
}
.footer-brand .logo-text {
    font-size: 22px;
    color: #fff;
    margin-bottom: 14px;
    display: inline-block;
}
.footer-brand p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.75;
    margin-top: 10px;
}
.footer-col h3 {
    font-size: 16px;
    color: #fff;
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}
.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 24px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul li a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color .25s, padding-left .25s;
}
.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 4px;
}
.footer-contact p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-contact a {
    color: var(--text-secondary);
}
.footer-contact a:hover {
    color: var(--primary);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 18px 0;
}
.footer-bottom p {
    font-size: 13px;
    color: var(--text-weak);
    margin: 0;
}
.footer-bottom a {
    color: var(--text-weak);
    margin-left: 18px;
    transition: color .25s;
}
.footer-bottom a:hover {
    color: var(--primary);
}
@media (max-width: 960px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
}
@media (max-width: 520px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom .flex-wrap {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #0B0E13;
}
::-webkit-scrollbar-thumb {
    background: #2A3541;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #3A4755;
}

/* ===== Utility ===== */
.text-primary { color: var(--primary); }
.text-accent { color: var(--accent); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }

/* ===== Responsive ===== */
@media (max-width: 520px) {
    .section { padding: 56px 0; }
    .section .section-desc { margin-bottom: 32px; font-size: 15px; }
    .btn { padding: 12px 24px; font-size: 14px; }
    .logo-text { font-size: 17px; }
    .header-inner .btn-cta { display: none; }
    .cat-hero h1 { font-size: 30px; }
    .cat-hero p.lead { font-size: 15px; }
    .timeline-card { padding: 20px; }
    .coverage-card { padding: 24px 20px; }
    .use-card { padding: 24px 20px; }
    .cta-section { padding: 64px 0; }
}