/* roulang page: index */
:root {
            --primary: #1E5EFF;
            --primary-dark: #0A2E7A;
            --primary-light: #EAF0FB;
            --bg: #F5F7FC;
            --card: #FFFFFF;
            --divider: #EDF1FA;
            --text: #1A2342;
            --text-light: #5A6B8C;
            --text-muted: #8A9BBE;
            --bronze: #B4875A;
            --silver: #9BA5B7;
            --gold: #E0B84C;
            --diamond: #6DD6F2;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 18px;
            --shadow: 0 8px 24px rgba(30, 94, 255, 0.08);
            --shadow-hover: 0 16px 32px rgba(30, 94, 255, 0.16);
            --shadow-lg: 0 20px 48px rgba(10, 47, 122, 0.14);
            --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Courier New', monospace;
            --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --section-pad: 80px;
            --container-max: 1200px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg);
            color: var(--text);
            font-size: 15px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        a:focus-visible {
            outline: 3px solid rgba(30, 94, 255, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--text);
        }
        h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
        }
        h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 14px;
        }
        h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        h4 {
            font-size: 1rem;
            font-weight: 600;
        }
        p {
            color: var(--text-light);
            line-height: 1.75;
        }

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

        .section {
            padding: var(--section-pad) 0;
        }
        .section-alt {
            background: var(--primary-light);
        }
        .section-heading {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 46px;
        }
        .section-heading .subtitle {
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
            display: block;
        }
        .section-heading p {
            margin-top: 10px;
            font-size: 1rem;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
            border: 1.5px solid transparent;
            white-space: nowrap;
        }
        .badge-bronze {
            color: #6D4F32;
            background: #F7EFE7;
            border-color: var(--bronze);
        }
        .badge-silver {
            color: #4E596F;
            background: #F1F3F7;
            border-color: var(--silver);
        }
        .badge-gold {
            color: #7A621F;
            background: #FBF6E8;
            border-color: var(--gold);
        }
        .badge-diamond {
            color: #2E6F82;
            background: #EFFAFD;
            border-color: var(--diamond);
        }
        .badge-blue {
            color: var(--primary);
            background: var(--primary-light);
            border-color: var(--primary);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(30, 94, 255, 0.28);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: 0 6px 20px rgba(10, 47, 122, 0.35);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(30, 94, 255, 0.22);
        }
        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            border-color: var(--primary-dark);
        }
        .btn-lg {
            padding: 15px 34px;
            font-size: 1.05rem;
            border-radius: 12px;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            background: #fff;
            border: 1.5px solid var(--divider);
            color: var(--text-light);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .chip:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-1px);
        }
        .chip-bronze {
            border-color: var(--bronze);
            color: #6D4F32;
            background: #FDF9F5;
        }
        .chip-bronze:hover {
            background: var(--bronze);
            color: #fff;
            border-color: var(--bronze);
        }
        .chip-gold {
            border-color: var(--gold);
            color: #7A621F;
            background: #FFFDF4;
        }
        .chip-gold:hover {
            background: var(--gold);
            color: #3D2F0A;
            border-color: var(--gold);
        }
        .chip-diamond {
            border-color: var(--diamond);
            color: #2E6F82;
            background: #F4FCFE;
        }
        .chip-diamond:hover {
            background: var(--diamond);
            color: #103A48;
            border-color: var(--diamond);
        }

        /* Header & Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--divider);
            box-shadow: 0 2px 12px rgba(30, 94, 255, 0.05);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 14px 24px;
            max-width: var(--container-max);
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .logo .logo-mark {
            width: 38px;
            height: 38px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 0.9rem;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(30, 94, 255, 0.3);
        }
        .logo:hover {
            color: var(--primary-dark);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
            justify-content: center;
        }
        .main-nav a {
            font-weight: 600;
            font-size: 0.93rem;
            color: var(--text-light);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .main-nav a:hover,
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            transform: scaleX(1);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-chips {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-cta {
            margin-left: 6px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1.5px solid var(--divider);
            background: #fff;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            transition: all var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--text);
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
        }

        /* Hero */
        .hero {
            position: relative;
            background: linear-gradient(135deg, #0A1F4D 0%, #0D2B66 35%, #123B8C 70%, #1E5EFF 100%);
            color: #fff;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/64eb8b79571e9d84.jpg') center / cover no-repeat;
            opacity: 0.25;
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(10, 31, 77, 0.88) 0%, rgba(10, 47, 122, 0.55) 50%, rgba(30, 94, 255, 0.3) 100%);
            z-index: 1;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 80px 24px;
            width: 100%;
        }
        .hero-content {
            max-width: 640px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: #F0F4FF;
            margin-bottom: 20px;
            backdrop-filter: blur(8px);
        }
        .hero-tag .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        .hero h1 {
            color: #fff;
            font-size: clamp(2.1rem, 5vw, 3.6rem);
            font-weight: 800;
            letter-spacing: -0.025em;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .hero h1 .highlight {
            color: #6DD6F2;
            position: relative;
        }
        .hero-desc {
            color: rgba(255, 255, 255, 0.82);
            font-size: 1.05rem;
            max-width: 560px;
            margin-bottom: 30px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 28px;
        }
        .hero-btn-light {
            background: #fff;
            color: var(--primary-dark);
            padding: 13px 30px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.98rem;
            transition: all var(--transition);
            box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
        }
        .hero-btn-light:hover {
            background: #F0F4FF;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(255, 255, 255, 0.35);
        }
        .hero-btn-ghost {
            background: transparent;
            color: #fff;
            padding: 13px 28px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.98rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            transition: all var(--transition);
        }
        .hero-btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
            transform: translateY(-2px);
        }
        .hero-nav-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hero-nav-strip .chip {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.3);
            color: #F0F4FF;
            backdrop-filter: blur(8px);
        }
        .hero-nav-strip .chip:hover {
            background: #fff;
            color: var(--primary-dark);
            border-color: #fff;
        }
        .hero-side {
            position: absolute;
            right: 60px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 2;
            display: none;
            flex-direction: column;
            gap: 12px;
        }
        .hero-rank-badge {
            background: rgba(255, 255, 255, 0.12);
            border: 1.5px solid var(--gold);
            border-radius: 14px;
            padding: 18px 22px;
            text-align: center;
            color: #fff;
            backdrop-filter: blur(10px);
            min-width: 120px;
        }
        .hero-rank-badge .rank-num {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 800;
            color: var(--gold);
            display: block;
        }
        .hero-rank-badge .rank-label {
            font-size: 0.75rem;
            letter-spacing: 0.05em;
            color: rgba(255, 255, 255, 0.7);
        }

        /* Stats Dashboard */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }
        .stat-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 26px 20px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--divider);
            transition: all var(--transition);
            cursor: default;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            background: var(--primary-light);
        }
        .stat-value {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .stat-tag {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 4px;
            padding: 2px 8px;
            margin-top: 6px;
        }

        /* Zone Cards */
        .zones-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .zone-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--divider);
            transition: all var(--transition);
        }
        .zone-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .zone-card-img {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--primary-light);
        }
        .zone-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }
        .zone-card:hover .zone-card-img img {
            transform: scale(1.04);
        }
        .zone-rank-corner {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 0.8rem;
            color: #fff;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        .zone-rank-corner.bronze { background: var(--bronze); }
        .zone-rank-corner.silver { background: var(--silver); }
        .zone-rank-corner.gold { background: var(--gold); color: #3D2F0A; }
        .zone-rank-corner.diamond { background: var(--diamond); color: #103A48; }
        .zone-card-body {
            padding: 20px 18px;
        }
        .zone-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: var(--text);
        }
        .zone-card-body p {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-bottom: 14px;
        }
        .zone-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--primary);
            transition: all var(--transition);
        }
        .zone-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* Compare Table */
        .compare-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--divider);
        }
        .compare-col {
            background: #fff;
            padding: 32px 28px;
        }
        .compare-col--highlight {
            background: linear-gradient(135deg, #F0F5FF 0%, #E8F0FF 100%);
            border-left: 3px solid var(--primary);
        }
        .compare-col h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compare-col .compare-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .compare-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .compare-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 12px 14px;
            background: rgba(255, 255, 255, 0.8);
            border-radius: var(--radius-sm);
            border: 1px solid var(--divider);
            font-size: 0.9rem;
        }
        .compare-col--highlight .compare-item {
            background: #fff;
            border-color: rgba(30, 94, 255, 0.15);
        }
        .compare-item .dim {
            font-weight: 600;
            color: var(--text);
        }
        .compare-item .val {
            font-weight: 600;
            color: var(--text-light);
        }
        .compare-col--highlight .compare-item .val {
            color: var(--primary);
        }
        .compare-item .val.high {
            color: var(--primary);
            font-weight: 700;
        }

        /* Milestones */
        .timeline {
            display: flex;
            justify-content: space-between;
            gap: 16px;
            position: relative;
            padding: 20px 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 4%;
            right: 4%;
            height: 3px;
            background: linear-gradient(90deg, var(--bronze), var(--silver), var(--gold), var(--diamond));
            border-radius: 3px;
            transform: translateY(-50%);
        }
        .timeline-item {
            position: relative;
            z-index: 1;
            text-align: center;
            flex: 1;
            min-width: 0;
        }
        .timeline-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary);
            margin: 0 auto 12px;
            box-shadow: 0 0 0 4px rgba(30, 94, 255, 0.15);
        }
        .timeline-item:nth-child(1) .timeline-dot { border-color: var(--bronze); box-shadow: 0 0 0 4px rgba(180,135,90,0.2); }
        .timeline-item:nth-child(2) .timeline-dot { border-color: var(--silver); box-shadow: 0 0 0 4px rgba(155,165,183,0.25); }
        .timeline-item:nth-child(3) .timeline-dot { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(224,184,76,0.25); }
        .timeline-item:nth-child(4) .timeline-dot { border-color: var(--diamond); box-shadow: 0 0 0 4px rgba(109,214,242,0.25); }
        .timeline-item:nth-child(5) .timeline-dot { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(30,94,255,0.2); }
        .timeline-year {
            font-family: var(--font-mono);
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--primary);
            display: block;
            margin-bottom: 4px;
        }
        .timeline-text {
            font-size: 0.85rem;
            color: var(--text-light);
            font-weight: 500;
        }

        /* News List */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: #fff;
            border-radius: var(--radius);
            padding: 16px 20px;
            border: 1px solid var(--divider);
            box-shadow: var(--shadow);
            transition: all var(--transition);
        }
        .news-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .news-date {
            flex-shrink: 0;
            width: 58px;
            height: 58px;
            background: var(--primary-light);
            border-radius: 10px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
        }
        .news-date .day {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .news-date .month {
            font-size: 0.7rem;
            color: var(--text-muted);
            font-weight: 600;
        }
        .news-info h4 {
            font-size: 0.95rem;
            margin-bottom: 4px;
            color: var(--text);
        }
        .news-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .news-info h4:hover {
            color: var(--primary);
        }

        /* Ranking Horizontal Scroll */
        .ranking-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        .ranking-scroll::-webkit-scrollbar {
            height: 6px;
        }
        .ranking-scroll::-webkit-scrollbar-track {
            background: var(--primary-light);
            border-radius: 3px;
        }
        .ranking-scroll::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 3px;
        }
        .ranking-card {
            flex: 0 0 260px;
            scroll-snap-align: start;
            background: #fff;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--divider);
            transition: all var(--transition);
        }
        .ranking-card:hover {
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
            transform: translateY(-2px);
        }
        .ranking-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--primary-light);
            position: relative;
        }
        .ranking-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .ranking-rank {
            position: absolute;
            top: 8px;
            left: 8px;
            background: rgba(10, 31, 77, 0.85);
            color: #fff;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 0.8rem;
            padding: 3px 10px;
            border-radius: 6px;
            backdrop-filter: blur(4px);
        }
        .ranking-card-body {
            padding: 14px 16px;
        }
        .ranking-card-body h4 {
            font-size: 0.9rem;
            margin-bottom: 6px;
        }
        .ranking-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.75rem;
            color: var(--text-muted);
        }
        .ranking-meta .heat {
            color: #E05E5E;
            font-weight: 700;
        }

        /* Guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .guarantee-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 26px 22px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--divider);
            transition: all var(--transition);
        }
        .guarantee-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--primary);
        }
        .guarantee-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 1.4rem;
            background: var(--primary-light);
            color: var(--primary);
        }
        .guarantee-card h4 {
            margin-bottom: 6px;
            font-size: 0.95rem;
        }
        .guarantee-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* Quick Answers */
        .quick-answers {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .qa-item {
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 18px 16px;
            border-left: 3px solid var(--bronze);
            box-shadow: var(--shadow);
            border-top: 1px solid var(--divider);
            border-right: 1px solid var(--divider);
            border-bottom: 1px solid var(--divider);
            transition: all var(--transition);
        }
        .qa-item:nth-child(2) { border-left-color: var(--silver); }
        .qa-item:nth-child(3) { border-left-color: var(--gold); }
        .qa-item:nth-child(4) { border-left-color: var(--diamond); }
        .qa-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .qa-item .qa-q {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--text);
            margin-bottom: 6px;
        }
        .qa-item .qa-a {
            font-size: 0.8rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: #fff;
            border-radius: var(--radius-sm);
            border: 1px solid var(--divider);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            user-select: none;
            background: transparent;
            width: 100%;
            text-align: left;
            gap: 16px;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.75;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
        }

        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, #0A1F4D 0%, #0D2B66 40%, #10357E 70%, #1E5EFF 100%);
            border-radius: var(--radius-lg);
            padding: 52px 46px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: rgba(109, 214, 242, 0.12);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-info h2 {
            color: #fff;
            margin-bottom: 12px;
            font-size: 1.6rem;
        }
        .cta-info p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            max-width: 420px;
            line-height: 1.7;
        }
        .cta-tag {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 999px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #F0F4FF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .cta-form {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius);
            padding: 26px;
            backdrop-filter: blur(8px);
            position: relative;
            z-index: 1;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-size: 0.8rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 5px;
            letter-spacing: 0.02em;
        }
        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 11px 14px;
            border-radius: 8px;
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 0.9rem;
            transition: all var(--transition);
            outline: none;
        }
        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #6DD6F2;
            background: rgba(255, 255, 255, 0.16);
            box-shadow: 0 0 0 3px rgba(109, 214, 242, 0.25);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 80px;
        }
        .form-submit-btn {
            width: 100%;
            padding: 13px;
            border-radius: 10px;
            background: #fff;
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            transition: all var(--transition);
            letter-spacing: 0.02em;
        }
        .form-submit-btn:hover {
            background: #F0F4FF;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 255, 255, 0.25);
        }
        .form-privacy {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 10px;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: #0A1F4D;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 1.15rem;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            max-width: 300px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul a:hover {
            color: #6DD6F2;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .zones-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .quick-answers {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-side {
                right: 30px;
            }
            .main-nav {
                gap: 18px;
            }
            .header-chips {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 56px;
            }
            .header-inner {
                padding: 12px 16px;
                flex-wrap: nowrap;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 20px;
                gap: 12px;
                border-bottom: 1px solid var(--divider);
                box-shadow: 0 12px 30px rgba(0,0,0,0.08);
                z-index: 999;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                font-size: 1rem;
                padding: 8px 0;
            }
            .header-right {
                gap: 8px;
            }
            .header-cta .btn {
                padding: 9px 16px;
                font-size: 0.8rem;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding: 40px 0;
            }
            .hero-inner {
                padding: 40px 16px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-side {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 18px 14px;
            }
            .stat-value {
                font-size: 1.5rem;
            }
            .zones-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .compare-wrapper {
                grid-template-columns: 1fr;
            }
            .compare-col--highlight {
                border-left: none;
                border-top: 3px solid var(--primary);
            }
            .timeline {
                flex-direction: column;
                gap: 20px;
            }
            .timeline::before {
                top: 0;
                bottom: 0;
                left: 50%;
                width: 3px;
                height: auto;
                transform: translateX(-50%);
            }
            .timeline-item {
                text-align: left;
                padding-left: 30px;
            }
            .timeline-dot {
                position: absolute;
                left: -3px;
                top: 4px;
                margin: 0;
            }
            .news-item {
                padding: 12px 14px;
                gap: 12px;
            }
            .news-date {
                width: 48px;
                height: 48px;
            }
            .ranking-card {
                flex: 0 0 220px;
            }
            .guarantee-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .quick-answers {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .cta-section {
                grid-template-columns: 1fr;
                padding: 30px 22px;
                gap: 24px;
            }
            .cta-info h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-value {
                font-size: 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .section-heading {
                margin-bottom: 30px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .hero-btn-light,
            .hero-btn-ghost {
                width: 100%;
                text-align: center;
                justify-content: center;
            }
            .hero-nav-strip {
                gap: 6px;
            }
            .hero-nav-strip .chip {
                font-size: 0.7rem;
                padding: 4px 10px;
            }
            .compare-item {
                flex-direction: column;
                gap: 4px;
                align-items: flex-start;
            }
            .faq-question {
                font-size: 0.85rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.82rem;
            }
        }

/* roulang page: category1 */
:root {
      --primary: #1E5EFF;
      --primary-dark: #0A2E7A;
      --primary-light: #EAF0FB;
      --bg: #F5F7FC;
      --card: #FFFFFF;
      --divider: #EDF1FA;
      --text: #1A2342;
      --text-light: #5A6B8C;
      --text-muted: #8A9BBE;
      --bronze: #B4875A;
      --silver: #9BA5B7;
      --gold: #E0B84C;
      --diamond: #6DD6F2;
      --radius: 14px;
      --radius-sm: 8px;
      --radius-lg: 18px;
      --shadow: 0 8px 24px rgba(30, 94, 255, 0.08);
      --shadow-hover: 0 16px 32px rgba(30, 94, 255, 0.16);
      --shadow-lg: 0 20px 48px rgba(10, 47, 122, 0.14);
      --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Courier New', monospace;
      --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
      --section-pad: 72px;
      --container-max: 1200px;
    }
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
      background: var(--bg);
      color: var(--text);
      font-size: 15px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a {
      color: var(--primary);
      text-decoration: none;
      transition: color var(--transition);
    }
    a:hover {
      color: var(--primary-dark);
    }
    a:focus-visible {
      outline: 3px solid rgba(30, 94, 255, 0.35);
      outline-offset: 2px;
      border-radius: 4px;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-sm);
    }
    button, input, textarea, select {
      font: inherit;
      color: inherit;
    }
    button {
      cursor: pointer;
      border: none;
      background: none;
    }
    .container {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 0 24px;
    }
    .section {
      padding: var(--section-pad) 0;
    }
    .section-alt {
      background: var(--primary-light);
    }
    .section-heading {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 46px;
    }
    .section-heading .subtitle {
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--primary);
      margin-bottom: 10px;
      display: block;
    }
    .section-heading h2 {
      font-size: 2rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.25;
      color: var(--text);
    }
    .section-heading p {
      margin-top: 10px;
      font-size: 1rem;
      color: var(--text-light);
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 3px 10px;
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.03em;
      border: 1.5px solid transparent;
      white-space: nowrap;
    }
    .badge-bronze { color: #6D4F32; background: #F7EFE7; border-color: var(--bronze); }
    .badge-silver { color: #4E596F; background: #F1F3F7; border-color: var(--silver); }
    .badge-gold { color: #7A621F; background: #FBF6E8; border-color: var(--gold); }
    .badge-diamond { color: #2E6F82; background: #EFFAFD; border-color: var(--diamond); }
    .badge-blue { color: var(--primary); background: var(--primary-light); border-color: var(--primary); }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: 10px;
      font-weight: 600;
      font-size: 0.95rem;
      transition: all var(--transition);
      white-space: nowrap;
      letter-spacing: 0.01em;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 16px rgba(30, 94, 255, 0.28);
    }
    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 6px 20px rgba(10, 47, 122, 0.35);
      transform: translateY(-2px);
      color: #fff;
    }
    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 3px 10px rgba(30, 94, 255, 0.22);
    }
    .btn-outline {
      background: #fff;
      color: var(--primary);
      border: 2px solid var(--primary);
    }
    .btn-outline:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
      transform: translateY(-2px);
      border-color: var(--primary-dark);
    }
    .btn-lg {
      padding: 15px 34px;
      font-size: 1.05rem;
      border-radius: 12px;
    }
    .btn-sm {
      padding: 8px 16px;
      font-size: 0.85rem;
      border-radius: 8px;
    }
    .chip {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 5px 14px;
      border-radius: 999px;
      font-size: 0.78rem;
      font-weight: 600;
      letter-spacing: 0.02em;
      background: #fff;
      border: 1.5px solid var(--divider);
      color: var(--text-light);
      transition: all var(--transition);
      white-space: nowrap;
      cursor: pointer;
    }
    .chip:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      transform: translateY(-1px);
    }
    .chip-actual {
      background: var(--primary-light);
      color: var(--primary-dark);
      border-color: var(--primary);
    }
    .chip-gold {
      color: #7A621F;
      background: #FBF6E8;
      border-color: var(--gold);
    }
    .chip-diamond {
      color: #2E6F82;
      background: #EFFAFD;
      border-color: var(--diamond);
    }
    /* Header */
    .site-header {
      background: #fff;
      border-bottom: 1px solid var(--divider);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 4px 16px rgba(30, 94, 255, 0.04);
    }
    .header-inner {
      max-width: var(--container-max);
      margin: 0 auto;
      padding: 12px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 800;
      font-size: 1.15rem;
      color: var(--text);
      letter-spacing: -0.02em;
    }
    .logo:hover {
      color: var(--primary-dark);
    }
    .logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: var(--primary);
      color: #fff;
      border-radius: 8px;
      font-weight: 800;
      font-size: 0.85rem;
      letter-spacing: 0;
    }
    .main-nav {
      display: flex;
      align-items: center;
      gap: 28px;
      flex: 1;
      justify-content: center;
    }
    .main-nav a {
      color: var(--text-light);
      font-weight: 600;
      font-size: 0.92rem;
      position: relative;
      padding: 4px 0;
      transition: color var(--transition);
    }
    .main-nav a::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 0;
      height: 2px;
      background: var(--primary);
      transition: width var(--transition);
    }
    .main-nav a:hover, .main-nav a.active {
      color: var(--primary);
    }
    .main-nav a:hover::after, .main-nav a.active::after {
      width: 100%;
    }
    .header-right {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .header-chips {
      display: flex;
      gap: 8px;
    }
    .header-cta {
      box-shadow: 0 4px 12px rgba(30, 94, 255, 0.2);
    }
    .nav-toggle {
      display: none;
      width: 36px;
      height: 36px;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      padding: 6px;
      border-radius: 8px;
      background: var(--primary-light);
    }
    .nav-toggle span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
      transition: all var(--transition);
    }
    /* Category Hero */
    .category-hero {
      background: var(--bg);
      padding: 48px 0 32px;
      border-bottom: 1px solid var(--divider);
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.82rem;
      color: var(--text-muted);
      margin-bottom: 20px;
      flex-wrap: wrap;
    }
    .breadcrumb a {
      color: var(--text-light);
    }
    .breadcrumb a:hover {
      color: var(--primary);
    }
    .breadcrumb .sep {
      color: var(--text-muted);
      user-select: none;
    }
    .category-hero-content {
      display: grid;
      grid-template-columns: 1.3fr 0.7fr;
      gap: 32px;
      align-items: center;
    }
    .category-hero h1 {
      font-size: 2.5rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      line-height: 1.2;
      color: var(--text);
      margin-bottom: 14px;
    }
    .category-hero .sub {
      font-size: 1.1rem;
      color: var(--text-light);
      margin-bottom: 18px;
      max-width: 650px;
    }
    .hero-stats {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-top: 18px;
    }
    .stat-pill {
      background: #fff;
      border: 1px solid var(--divider);
      border-radius: 10px;
      padding: 8px 16px;
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-light);
      box-shadow: 0 2px 6px rgba(30,94,255,0.05);
    }
    .stat-pill strong {
      font-family: var(--font-mono);
      font-size: 1.05rem;
      color: var(--primary);
      font-weight: 700;
    }
    .hero-img {
      background: var(--primary-light);
      border-radius: var(--radius-lg);
      overflow: hidden;
      height: 240px;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }
    .hero-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: var(--radius-lg);
    }
    .hero-img .overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(10,47,122,0.7), rgba(30,94,255,0.35));
      border-radius: var(--radius-lg);
      display: flex;
      align-items: flex-end;
      padding: 20px;
    }
    .overlay-label {
      color: #fff;
      font-weight: 700;
      font-size: 1.2rem;
    }
    /* Filter Bar */
    .filter-bar {
      background: #fff;
      padding: 18px 0;
      border-bottom: 1px solid var(--divider);
      position: relative;
      z-index: 5;
    }
    .filter-inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }
    .filter-label {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--text);
      margin-right: 4px;
    }
    .filter-group {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .filter-select {
      background: #fff;
      border: 1.5px solid var(--divider);
      border-radius: 8px;
      padding: 8px 12px;
      font-size: 0.85rem;
      color: var(--text-light);
      min-width: 120px;
      outline: none;
      transition: border var(--transition);
    }
    .filter-select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(30,94,255,0.12);
    }
    /* Category Content */
    .category-content {
      background: var(--bg);
      padding: 36px 0 56px;
    }
    .category-grid {
      display: grid;
      grid-template-columns: 1.8fr 0.9fr;
      gap: 28px;
      align-items: start;
    }
    .list-main {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .list-item {
      background: #fff;
      border-radius: var(--radius);
      padding: 18px;
      display: grid;
      grid-template-columns: 160px 1fr;
      gap: 18px;
      box-shadow: var(--shadow);
      border: 1px solid var(--divider);
      transition: all var(--transition);
      position: relative;
    }
    .list-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .list-item::before {
      content: "";
      position: absolute;
      left: 0;
      top: 16px;
      bottom: 16px;
      width: 4px;
      background: var(--primary);
      border-radius: 0 4px 4px 0;
      opacity: 0;
      transition: opacity var(--transition);
    }
    .list-item:hover::before {
      opacity: 1;
    }
    .list-thumb {
      width: 160px;
      height: 100px;
      border-radius: 10px;
      overflow: hidden;
      background: var(--primary-light);
    }
    .list-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .list-info {
      display: flex;
      flex-direction: column;
      justify-content: center;
    }
    .list-title {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 6px;
      transition: color var(--transition);
    }
    .list-title a {
      color: inherit;
    }
    .list-title a:hover {
      color: var(--primary);
    }
    .list-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .list-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .tag {
      padding: 2px 10px;
      border-radius: 999px;
      font-size: 0.7rem;
      font-weight: 600;
      background: var(--primary-light);
      color: var(--primary);
      border: 1px solid transparent;
    }
    .tag-bronze { background: #F7EFE7; color: #6D4F32; border-color: var(--bronze); }
    .tag-silver { background: #F1F3F7; color: #4E596F; border-color: var(--silver); }
    .tag-gold { background: #FBF6E8; color: #7A621F; border-color: var(--gold); }
    .tag-diamond { background: #EFFAFD; color: #2E6F82; border-color: var(--diamond); }
    .list-heat {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 0.8rem;
      color: var(--text-light);
      font-family: var(--font-mono);
      font-weight: 600;
    }
    .list-heat i {
      color: var(--gold);
    }
    /* Rank Side */
    .rank-side {
      background: #fff;
      border-radius: var(--radius);
      padding: 22px;
      box-shadow: var(--shadow);
      border: 1px solid var(--divider);
      position: sticky;
      top: 80px;
    }
    .rank-side h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text);
    }
    .rank-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .rank-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 12px;
      border-radius: 10px;
      background: var(--bg);
      transition: all var(--transition);
    }
    .rank-item:hover {
      background: var(--primary-light);
    }
    .rank-num {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background: var(--card);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 0.8rem;
      color: var(--text-light);
      border: 1px solid var(--divider);
      font-family: var(--font-mono);
    }
    .rank-num.gold {
      background: #FBF6E8;
      color: #7A621F;
      border-color: var(--gold);
    }
    .rank-num.diamond {
      background: #EFFAFD;
      color: #2E6F82;
      border-color: var(--diamond);
    }
    .rank-num.silver {
      background: #F1F3F7;
      color: #4E596F;
      border-color: var(--silver);
    }
    .rank-num.bronze {
      background: #F7EFE7;
      color: #6D4F32;
      border-color: var(--bronze);
    }
    .rank-info {
      flex: 1;
      min-width: 0;
    }
    .rank-name {
      font-weight: 600;
      font-size: 0.92rem;
      color: var(--text);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .rank-heat {
      font-size: 0.72rem;
      color: var(--text-muted);
      font-family: var(--font-mono);
    }
    .rank-badge {
      font-size: 0.7rem;
      font-weight: 700;
      padding: 2px 8px;
      border-radius: 999px;
      white-space: nowrap;
    }
    /* Topic Cards */
    .topic-section {
      background: var(--primary-light);
    }
    .topic-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 22px;
    }
    .topic-card {
      background: #fff;
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--divider);
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
    }
    .topic-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
    }
    .topic-img {
      height: 160px;
      overflow: hidden;
    }
    .topic-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 0;
    }
    .topic-body {
      padding: 18px 20px;
    }
    .topic-body h4 {
      font-size: 1.1rem;
      font-weight: 700;
      margin-bottom: 8px;
      color: var(--text);
    }
    .topic-body p {
      font-size: 0.88rem;
      color: var(--text-light);
      margin-bottom: 12px;
    }
    .topic-link {
      font-weight: 600;
      font-size: 0.85rem;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }
    .topic-link:hover {
      color: var(--primary-dark);
    }
    /* Rules */
    .rules-section {
      background: #fff;
    }
    .rules-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .rules-text h2 {
      font-size: 1.8rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }
    .rules-text p {
      color: var(--text-light);
      margin-bottom: 18px;
    }
    .rules-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .rules-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      background: var(--bg);
      padding: 14px 18px;
      border-radius: 10px;
      border-left: 4px solid var(--primary);
    }
    .rule-icon {
      color: var(--primary);
      font-weight: 700;
      font-size: 1.1rem;
      flex-shrink: 0;
    }
    .rules-list li p {
      margin: 0;
      color: var(--text);
      font-weight: 500;
    }
    .rules-visual {
      background: var(--primary-light);
      border-radius: var(--radius-lg);
      padding: 30px;
      text-align: center;
      border: 1px solid var(--divider);
    }
    .rules-visual .visual-num {
      font-family: var(--font-mono);
      font-size: 3rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
    }
    .rules-visual p {
      color: var(--text-light);
      margin-top: 8px;
    }
    /* Tag Cloud */
    .tag-cloud-section {
      background: var(--bg);
    }
    .tag-cloud-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      justify-content: center;
      max-width: 800px;
      margin: 0 auto;
    }
    .cloud-tag {
      background: #fff;
      border: 1.5px solid var(--divider);
      border-radius: 999px;
      padding: 8px 18px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-light);
      transition: all var(--transition);
      display: inline-flex;
      align-items: center;
      gap: 5px;
    }
    .cloud-tag:hover {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
      transform: translateY(-2px);
      box-shadow: 0 6px 14px rgba(30,94,255,0.25);
    }
    /* Subscribe CTA */
    .subscribe-section {
      background: var(--primary-dark);
      color: #fff;
      padding: 64px 0;
    }
    .subscribe-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 40px;
      align-items: center;
    }
    .subscribe-left h2 {
      font-size: 2rem;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 12px;
      color: #fff;
    }
    .subscribe-left p {
      color: rgba(255,255,255,0.8);
      font-size: 1rem;
    }
    .subscribe-form {
      background: rgba(255,255,255,0.08);
      border: 1px solid rgba(255,255,255,0.18);
      border-radius: var(--radius-lg);
      padding: 28px;
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }
    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 16px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group label {
      font-size: 0.82rem;
      color: rgba(255,255,255,0.9);
      font-weight: 500;
    }
    .form-group input,
    .form-group textarea {
      background: rgba(255,255,255,0.95);
      border: 1.5px solid rgba(255,255,255,0.2);
      border-radius: 8px;
      padding: 10px 14px;
      font-size: 0.9rem;
      color: var(--text);
      outline: none;
      transition: border var(--transition), box-shadow var(--transition);
    }
    .form-group input:focus,
    .form-group textarea:focus {
      border-color: #fff;
      box-shadow: 0 0 0 3px rgba(255,255,255,0.25);
    }
    .form-group textarea {
      resize: vertical;
      min-height: 80px;
    }
    .subscribe-form .btn {
      width: 100%;
      margin-top: 6px;
      background: #fff;
      color: var(--primary-dark);
      box-shadow: 0 6px 16px rgba(0,0,0,0.2);
    }
    .subscribe-form .btn:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
      transform: translateY(-2px);
    }
    /* Footer */
    .site-footer {
      background: #0A1F4D;
      color: #fff;
      padding: 56px 0 28px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 36px;
    }
    .footer-brand .logo {
      color: #fff;
      margin-bottom: 12px;
    }
    .footer-brand .logo:hover {
      color: var(--primary-light);
    }
    .footer-brand p {
      color: rgba(255,255,255,0.7);
      font-size: 0.9rem;
      max-width: 300px;
    }
    .footer-col h4 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 14px;
      color: #fff;
    }
    .footer-col ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-col a {
      color: rgba(255,255,255,0.7);
      font-size: 0.88rem;
      transition: color var(--transition);
    }
    .footer-col a:hover {
      color: #fff;
      text-decoration: underline;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.12);
      padding-top: 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      font-size: 0.82rem;
      color: rgba(255,255,255,0.6);
    }
    .footer-bottom span {
      white-space: nowrap;
    }
    /* Responsive */
    @media (max-width: 1024px) {
      .category-hero-content {
        grid-template-columns: 1fr;
      }
      .hero-img {
        height: 200px;
      }
      .category-grid {
        grid-template-columns: 1fr;
      }
      .rank-side {
        position: static;
      }
      .rules-inner {
        grid-template-columns: 1fr;
      }
      .subscribe-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      :root {
        --section-pad: 48px;
      }
      .header-inner {
        flex-wrap: wrap;
      }
      .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px;
        gap: 0;
        box-shadow: 0 12px 28px rgba(10,47,122,0.12);
        border-bottom: 1px solid var(--divider);
      }
      .main-nav.open {
        display: flex;
      }
      .main-nav a {
        padding: 12px 0;
        border-bottom: 1px solid var(--divider);
      }
      .nav-toggle {
        display: flex;
      }
      .header-chips {
        display: none;
      }
      .header-cta {
        display: none;
      }
      .category-hero h1 {
        font-size: 1.9rem;
      }
      .list-item {
        grid-template-columns: 1fr;
      }
      .list-thumb {
        width: 100%;
        height: 180px;
      }
      .form-row {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .stats-pill {
        font-size: 0.8rem;
      }
    }
    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }
      .section-heading h2 {
        font-size: 1.6rem;
      }
      .filter-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .filter-select {
        width: 100%;
      }
      .hero-stats {
        flex-direction: column;
        gap: 8px;
      }
    }