/* roulang page: index */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.35);
            --shadow-cta: 0 4px 16px rgba(61,214,140,0.22);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 88px;
        }

        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button, .btn {
            transition: all 0.2s ease;
        }

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

        .container {
            max-width: 1200px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }

        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }

        .navbar {
            padding: 12px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .navbar-brand:hover {
            color: var(--accent-primary);
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }

        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }

        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }

            .navbar-nav {
                gap: 8px;
            }

            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }

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

            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }

            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }
        }

        /* ========== Hero ========== */
        .hero-section {
            padding: 70px 0 56px;
            background-image: url('/assets/images/39adf84a017ec059.webp');
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.82);
            z-index: 1;
        }

        .hero-section .container {
            position: relative;
            z-index: 2;
        }

        .hero-main-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            box-shadow: var(--shadow-card);
            height: 100%;
        }

        .hero-main-card h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 18px;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }

        .hero-main-card h1 .highlight {
            color: var(--accent-primary);
        }

        .hero-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.85;
            margin-bottom: 26px;
            max-width: 620px;
        }

        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-ghost {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: none;
        }

        .btn-primary-ghost:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }

        .btn-outline-ghost {
            background-color: transparent;
            color: var(--accent-primary);
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--accent-primary);
        }

        .btn-outline-ghost:hover {
            background-color: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
        }

        .hero-side-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
        }

        .hero-side-card .side-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 8px;
        }

        .hero-side-card .side-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-primary);
        }

        .hero-side-card .side-sub {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .hero-side-card .match-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px solid rgba(42, 52, 66, 0.6);
            font-size: 0.88rem;
        }

        .hero-side-card .match-item:last-child {
            border-bottom: none;
        }

        .hero-side-card .match-team {
            color: var(--text-primary);
            font-weight: 500;
        }

        .hero-side-card .match-score {
            color: var(--accent-secondary);
            font-weight: 700;
            font-size: 0.9rem;
        }

        .hero-side-card .match-time {
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        @media (max-width: 991.98px) {
            .hero-section {
                padding: 44px 0 36px;
            }

            .hero-main-card h1 {
                font-size: 1.9rem;
            }

            .hero-desc {
                font-size: 0.95rem;
            }

            .hero-main-card {
                padding: 26px 20px;
            }
        }

        @media (max-width: 575.98px) {
            .hero-main-card h1 {
                font-size: 1.5rem;
            }

            .hero-desc {
                font-size: 0.88rem;
                line-height: 1.7;
            }

            .hero-cta-group .btn {
                width: 100%;
                text-align: center;
            }
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: 56px 0;
        }

        .section-block.alt-bg {
            background-color: var(--bg-panel);
        }

        .section-block.alt-bg-2 {
            background-color: rgba(23, 28, 36, 0.5);
        }

        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 780px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.78rem;
            color: var(--accent-primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
            font-weight: 600;
        }

        /* ========== Data Strip ========== */
        .data-strip {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 18px 0;
        }

        .data-strip .data-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 4px;
        }

        .data-strip .data-badge .badge-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background-color: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .data-strip .data-badge .badge-text {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.3;
        }

        .data-strip .data-badge .badge-number {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent-primary);
            line-height: 1.2;
        }

        /* ========== Feature Cards ========== */
        .feature-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            height: 100%;
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .feature-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .feature-card .feature-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background-color: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.1rem;
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== League Cards ========== */
        .league-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            transition: transform 0.25s ease, border-color 0.25s ease;
        }

        .league-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
        }

        .league-card .league-cover {
            position: relative;
            height: 160px;
            background-size: cover;
            background-position: center;
        }

        .league-card .league-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.55);
        }

        .league-card .league-cover .league-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background-color: rgba(255, 122, 69, 0.92);
            color: #0E1116;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.04em;
        }

        .league-card .league-body {
            padding: 18px 18px 20px;
        }

        .league-card .league-body h3 {
            font-size: 1.02rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .league-card .league-body .league-stat {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            margin-bottom: 6px;
        }

        .league-card .league-body .league-stat i {
            color: var(--accent-primary);
            font-size: 0.7rem;
        }

        /* ========== Steps / Rules ========== */
        .rule-step {
            display: flex;
            gap: 16px;
            margin-bottom: 20px;
        }

        .rule-step .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            font-weight: 700;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .rule-step .step-body h4 {
            font-size: 0.98rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-primary);
        }

        .rule-step .step-body p {
            font-size: 0.86rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        .rules-text-block {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            height: 100%;
        }

        .rules-text-block h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .rules-text-block p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .rules-text-block p:last-child {
            margin-bottom: 0;
        }

        /* ========== Brand Intro ========== */
        .brand-intro {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px 30px;
            box-shadow: var(--shadow-card);
        }

        .brand-intro .intro-label {
            font-size: 0.8rem;
            color: var(--accent-primary);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .brand-intro h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .brand-intro p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* ========== Comparison ========== */
        .compare-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            height: 100%;
        }

        .compare-card.highlight-card {
            border-color: var(--accent-primary);
            box-shadow: 0 0 0 1px rgba(61, 214, 140, 0.2), var(--shadow-card);
        }

        .compare-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .compare-card h3 i {
            margin-right: 8px;
            color: var(--accent-primary);
        }

        .compare-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 9px 0;
            border-bottom: 1px solid rgba(42, 52, 66, 0.5);
            font-size: 0.88rem;
        }

        .compare-row:last-child {
            border-bottom: none;
        }

        .compare-row .compare-label {
            color: var(--text-secondary);
        }

        .compare-row .compare-value {
            color: var(--text-primary);
            font-weight: 500;
            text-align: right;
            max-width: 55%;
        }

        .compare-row .compare-value.strong {
            color: var(--accent-primary);
            font-weight: 700;
        }

        .compare-row .compare-value.weak {
            color: var(--text-muted);
        }

        /* ========== News Cards ========== */
        .news-list-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            margin-bottom: 14px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .news-list-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .news-list-card .news-date {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }

        .news-list-card .news-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .news-list-card .news-excerpt {
            font-size: 0.87rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .news-list-card .btn-read {
            display: inline-block;
            font-size: 0.83rem;
            font-weight: 600;
            color: var(--accent-primary);
            padding: 0;
            background: none;
            border: none;
        }

        .news-list-card .btn-read:hover {
            color: #2FBE76;
        }

        .news-list-card .btn-read i {
            font-size: 0.7rem;
            margin-left: 4px;
        }

        /* ========== Feedback ========== */
        .feedback-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            height: 100%;
        }

        .feedback-card .fb-user {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .feedback-card .fb-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(77, 163, 255, 0.15);
            color: var(--accent-tertiary);
            font-weight: 700;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .feedback-card .fb-name {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .feedback-card .fb-tag {
            font-size: 0.72rem;
            color: var(--text-muted);
        }

        .feedback-card .fb-text {
            font-size: 0.86rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ========== Model Stats ========== */
        .model-stat-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            height: 100%;
            transition: border-color 0.25s ease;
        }

        .model-stat-card:hover {
            border-color: var(--accent-primary);
        }

        .model-stat-card .stat-icon {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background-color: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1rem;
            margin: 0 auto 12px;
        }

        .model-stat-card .stat-number {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--accent-primary);
            line-height: 1.2;
        }

        .model-stat-card .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .accordion-item {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }

        .accordion-button {
            background-color: var(--bg-panel);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.93rem;
            padding: 16px 20px;
            border: none;
            border-radius: var(--radius-card) !important;
        }

        .accordion-button:not(.collapsed) {
            background-color: var(--bg-elevated);
            color: var(--accent-primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: -2px;
        }

        .accordion-button::after {
            filter: invert(70%) sepia(60%) saturate(400%) hue-rotate(100deg);
        }

        .accordion-body {
            background-color: var(--bg-panel);
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.8;
            padding: 14px 20px 18px;
        }

        /* ========== Guarantee Strip ========== */
        .guarantee-section {
            background-color: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 28px 0;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 6px;
        }

        .guarantee-item .g-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background-color: rgba(61, 214, 140, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .guarantee-item .g-text {
            font-size: 0.84rem;
            color: var(--text-primary);
            font-weight: 500;
            line-height: 1.4;
        }

        /* ========== CTA Banner ========== */
        .cta-banner {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
        }

        .cta-banner h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .cta-banner p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .btn-warm {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }

        .btn-warm:hover {
            background-color: #E86A3A;
            box-shadow: 0 4px 14px rgba(255, 122, 69, 0.25);
            color: #0E1116;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 44px 0 28px;
            margin-bottom: 56px;
        }

        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .site-footer .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .site-footer .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }

        .site-footer .footer-links li {
            margin-bottom: 8px;
        }

        .site-footer .footer-links a {
            font-size: 0.84rem;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

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

        .site-footer .copyright {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-top: 24px;
            padding-top: 16px;
            border-top: 1px solid rgba(42, 52, 66, 0.5);
        }

        .site-footer .copyright a {
            color: var(--text-muted);
            text-decoration: underline;
        }

        .site-footer .copyright a:hover {
            color: var(--accent-primary);
        }

        /* ========== Fixed Bottom CTA ========== */
        .fixed-bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background-color: rgba(14, 17, 22, 0.94);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-top: 1px solid var(--border-color);
            padding: 12px 0;
            z-index: 1020;
            height: 64px;
            display: flex;
            align-items: center;
        }

        .fixed-bottom-cta .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .fixed-bottom-cta .cta-text {
            font-size: 0.9rem;
            color: var(--text-primary);
            font-weight: 500;
        }

        .fixed-bottom-cta .cta-text span {
            color: var(--accent-secondary);
            font-weight: 700;
        }

        .fixed-bottom-cta .btn-view {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            border: none;
            font-size: 0.88rem;
            white-space: nowrap;
        }

        .fixed-bottom-cta .btn-view:hover {
            background-color: #E86A3A;
            color: #0E1116;
        }

        @media (max-width: 575.98px) {
            .fixed-bottom-cta {
                height: auto;
                padding: 10px 0;
                position: sticky;
                bottom: 0;
            }

            .fixed-bottom-cta .cta-inner {
                gap: 8px;
            }

            .fixed-bottom-cta .cta-text {
                font-size: 0.8rem;
            }

            .fixed-bottom-cta .btn-view {
                padding: 8px 16px;
                font-size: 0.8rem;
            }

            body {
                padding-bottom: 0;
            }

            .site-footer {
                margin-bottom: 0;
            }
        }

        /* ========== Responsive General ========== */
        @media (max-width: 767.98px) {
            .section-block {
                padding: 40px 0;
            }

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

            .section-desc {
                font-size: 0.88rem;
                line-height: 1.7;
            }

            .hero-main-card h1 {
                font-size: 1.55rem;
            }

            .hero-desc {
                font-size: 0.9rem;
            }

            .data-strip .data-badge {
                padding: 6px 0;
            }
        }

        @media (max-width: 575.98px) {
            .section-title {
                font-size: 1.2rem;
            }

            .hero-main-card h1 {
                font-size: 1.35rem;
            }

            .btn-primary-ghost, .btn-outline-ghost, .btn-warm {
                width: 100%;
                text-align: center;
            }

            .cta-banner {
                text-align: center;
            }

            .cta-banner .btn-warm {
                margin-top: 14px;
            }

            .fixed-bottom-cta .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category3 */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.35);
            --shadow-cta: 0 4px 16px rgba(61, 214, 140, 0.22);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 0;
        }

        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button,
        .btn {
            transition: all 0.2s ease;
        }

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

        .container {
            max-width: 1200px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }

        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }

        .navbar {
            padding: 12px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .navbar-brand:hover {
            color: var(--accent-primary);
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }

        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }

        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        @media (max-width: 991.98px) {
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }

            .navbar-nav {
                gap: 8px;
            }

            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }

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

            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }

            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            padding: 28px 0 0;
            background-color: transparent;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

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

        .breadcrumb-custom .separator {
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        .breadcrumb-custom .current {
            color: var(--accent-primary);
            font-weight: 500;
        }

        /* ========== Category Hero ========== */
        .category-hero {
            padding: 40px 0 32px;
            background: transparent;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 48px;
        }

        .category-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }

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

        .category-hero .category-desc {
            font-size: 1.02rem;
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 860px;
            margin-bottom: 0;
        }

        .category-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .category-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .category-hero .hero-meta i {
            color: var(--accent-primary);
            font-size: 0.8rem;
        }

        /* ========== Section Common ========== */
        .content-section {
            padding: 40px 0;
        }

        .section-heading {
            margin-bottom: 28px;
        }

        .section-heading h2 {
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .section-heading p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .section-heading .heading-line {
            width: 40px;
            height: 3px;
            background-color: var(--accent-primary);
            border-radius: 2px;
            margin-bottom: 14px;
        }

        /* ========== Rule Cards ========== */
        .rule-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 20px;
            transition: all 0.25s ease;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            position: relative;
            overflow: hidden;
        }

        .rule-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: transparent;
            transition: background-color 0.25s ease;
        }

        .rule-card:hover {
            border-color: rgba(61, 214, 140, 0.5);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .rule-card:hover::before {
            background-color: var(--accent-primary);
        }

        .rule-number {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-btn);
            background-color: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent-primary);
            border: 1px solid rgba(61, 214, 140, 0.3);
        }

        .rule-content {
            flex: 1;
            min-width: 0;
        }

        .rule-content .rule-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 8px;
        }

        .rule-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .rule-content .rule-summary {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 10px;
        }

        .rule-content .rule-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .rule-content .btn-read-more {
            font-size: 0.82rem;
            font-weight: 500;
            color: var(--accent-primary);
            background: none;
            border: none;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .rule-content .btn-read-more:hover {
            color: #2FBE76;
        }

        .rule-content .btn-read-more i {
            font-size: 0.7rem;
            transition: transform 0.2s ease;
        }

        .rule-content .btn-read-more:hover i {
            transform: translateX(3px);
        }

        /* ========== Tag Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-badge {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            background-color: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
            border: 1px solid rgba(61, 214, 140, 0.2);
            transition: all 0.2s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .tag-badge:hover {
            background-color: rgba(61, 214, 140, 0.16);
            border-color: rgba(61, 214, 140, 0.45);
            color: #5EE6A5;
        }

        .tag-badge.tag-orange {
            background-color: rgba(255, 122, 69, 0.08);
            color: var(--accent-secondary);
            border-color: rgba(255, 122, 69, 0.2);
        }

        .tag-badge.tag-orange:hover {
            background-color: rgba(255, 122, 69, 0.16);
            border-color: rgba(255, 122, 69, 0.45);
            color: #FF9A6B;
        }

        .tag-badge.tag-blue {
            background-color: rgba(77, 163, 255, 0.08);
            color: var(--accent-tertiary);
            border-color: rgba(77, 163, 255, 0.2);
        }

        .tag-badge.tag-blue:hover {
            background-color: rgba(77, 163, 255, 0.16);
            border-color: rgba(77, 163, 255, 0.45);
            color: #6AB8FF;
        }

        /* ========== Glossary / Terminology ========== */
        .glossary-panel {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
        }

        .glossary-panel .glossary-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .glossary-panel .glossary-title i {
            color: var(--accent-primary);
            font-size: 0.95rem;
        }

        .glossary-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .glossary-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .glossary-list li:last-child {
            border-bottom: none;
        }

        .glossary-term {
            font-weight: 600;
            color: var(--accent-primary);
            font-size: 0.88rem;
            flex-shrink: 0;
            min-width: 72px;
        }

        .glossary-def {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Risk Warning ========== */
        .risk-warning-bar {
            background-color: rgba(255, 122, 69, 0.06);
            border: 1px solid rgba(255, 122, 69, 0.25);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .risk-warning-bar .risk-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(255, 122, 69, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 1rem;
        }

        .risk-warning-bar .risk-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .risk-warning-bar .risk-text strong {
            color: var(--accent-secondary);
            font-weight: 600;
        }

        /* ========== Related Topics ========== */
        .related-topic-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-topic-card:hover {
            border-color: rgba(61, 214, 140, 0.5);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

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

        .related-topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .related-topic-card:hover .topic-image img {
            transform: scale(1.04);
        }

        .related-topic-card .topic-image .image-overlay {
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.45);
            pointer-events: none;
        }

        .related-topic-card .topic-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-topic-card .topic-body h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .related-topic-card .topic-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        .related-topic-card .topic-link {
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--accent-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.2s ease;
        }

        .related-topic-card .topic-link:hover {
            color: #5EE6A5;
        }

        /* ========== Subscribe CTA ========== */
        .subscribe-cta-section {
            padding: 40px 0 60px;
        }

        .subscribe-cta {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(61, 214, 140, 0.04);
            pointer-events: none;
        }

        .subscribe-cta .cta-text {
            flex: 1;
            min-width: 260px;
            position: relative;
            z-index: 1;
        }

        .subscribe-cta .cta-text h2 {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }

        .subscribe-cta .cta-text p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        .subscribe-cta .cta-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary-custom {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            border: none;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--accent-primary);
            font-weight: 500;
            font-size: 0.88rem;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--accent-primary);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
        }

        .btn-outline-custom:hover {
            background-color: rgba(61, 214, 140, 0.08);
            color: #5EE6A5;
            border-color: #5EE6A5;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 40px 0 56px;
        }

        .faq-item {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.2s ease;
        }

        .faq-item:hover {
            border-color: rgba(61, 214, 140, 0.35);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 0.95rem;
            font-weight: 600;
            padding: 18px 22px;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--accent-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background-color: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--accent-primary);
            transition: all 0.25s ease;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background-color: rgba(61, 214, 140, 0.2);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.25rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color 0.2s ease;
        }

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

        .copyright {
            border-top: 1px solid var(--border-color);
            margin-top: 32px;
            padding-top: 16px;
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: center;
        }

        .copyright a {
            color: var(--text-secondary);
        }

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

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .category-hero h1 {
                font-size: 2rem;
            }

            .rule-card {
                padding: 18px;
                gap: 14px;
            }

            .rule-number {
                width: 42px;
                height: 42px;
                font-size: 1.05rem;
            }

            .subscribe-cta {
                padding: 28px 24px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
            }

            .category-hero {
                padding: 28px 0 24px;
                margin-bottom: 32px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
                line-height: 1.35;
            }

            .category-hero .category-desc {
                font-size: 0.92rem;
                line-height: 1.8;
            }

            .content-section {
                padding: 28px 0;
            }

            .section-heading h2 {
                font-size: 1.3rem;
            }

            .rule-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }

            .rule-number {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
                border-radius: 4px;
            }

            .rule-content h3 {
                font-size: 1rem;
            }

            .rule-content .rule-summary {
                font-size: 0.87rem;
            }

            .glossary-panel {
                padding: 18px;
            }

            .subscribe-cta {
                padding: 22px 18px;
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .subscribe-cta .cta-text h2 {
                font-size: 1.1rem;
            }

            .subscribe-cta .cta-actions {
                width: 100%;
            }

            .subscribe-cta .cta-actions .btn-primary-custom,
            .subscribe-cta .cta-actions .btn-outline-custom {
                flex: 1;
                justify-content: center;
            }

            .footer-desc {
                max-width: 100%;
            }
        }

        @media (max-width: 575.98px) {
            .category-hero h1 {
                font-size: 1.35rem;
            }

            .category-hero .hero-meta {
                gap: 12px;
                font-size: 0.78rem;
            }

            .breadcrumb-section {
                padding: 18px 0 0;
            }

            .breadcrumb-custom {
                font-size: 0.78rem;
                gap: 6px;
            }

            .section-heading h2 {
                font-size: 1.15rem;
            }

            .tag-badge {
                padding: 6px 12px;
                font-size: 0.75rem;
            }

            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }

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

            .faq-item.open .faq-answer {
                padding: 0 16px 14px;
            }

            .risk-warning-bar {
                padding: 16px;
                flex-direction: column;
                gap: 10px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.35);
            --shadow-cta: 0 4px 16px rgba(61,214,140,0.22);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 88px;
        }
        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button, .btn {
            transition: all 0.2s ease;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }
        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .navbar-brand:hover {
            color: var(--accent-primary);
        }
        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }
        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }
        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            padding: 24px 0 0;
            background-color: transparent;
        }
        .breadcrumb-section .breadcrumb {
            margin-bottom: 0;
            font-size: 0.85rem;
        }
        .breadcrumb-section .breadcrumb-item a {
            color: var(--text-muted);
            transition: color 0.2s ease;
        }
        .breadcrumb-section .breadcrumb-item a:hover {
            color: var(--accent-primary);
        }
        .breadcrumb-section .breadcrumb-item.active {
            color: var(--text-secondary);
        }
        .breadcrumb-section .breadcrumb-item + .breadcrumb-item::before {
            color: var(--text-muted);
            content: "/";
        }

        /* ========== Page Header ========== */
        .page-header-section {
            padding: 36px 0 24px;
            background-color: transparent;
        }
        .page-header-section h1 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .page-header-section h1 .accent-text {
            color: var(--accent-primary);
        }
        .page-header-section .page-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 820px;
        }

        /* ========== Category Intro Panel ========== */
        .category-intro-section {
            padding: 24px 0 32px;
        }
        .category-intro-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
        }
        .category-intro-card p {
            color: var(--text-secondary);
            font-size: 0.98rem;
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* ========== Data Overview ========== */
        .data-overview-section {
            padding: 32px 0;
        }
        .section-heading {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }
        .section-heading .heading-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(61, 214, 140, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .section-heading h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0;
        }
        .overview-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 18px;
            text-align: center;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .overview-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
            box-shadow: 0 4px 20px rgba(0,0,0,0.45);
        }
        .overview-card .overview-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent-primary);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .overview-card .overview-value .unit {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 400;
        }
        .overview-card .overview-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ========== Report List ========== */
        .report-list-section {
            padding: 32px 0;
        }
        .report-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 0;
            overflow: hidden;
            margin-bottom: 20px;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .report-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
            box-shadow: 0 4px 20px rgba(0,0,0,0.45);
        }
        .report-card .report-img-wrapper {
            position: relative;
            height: 100%;
            min-height: 180px;
            overflow: hidden;
        }
        .report-card .report-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .report-card .report-img-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.35);
            pointer-events: none;
        }
        .report-card .report-body {
            padding: 22px 24px;
        }
        .report-card .report-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
        }
        .report-card .report-tags .tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            background-color: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            font-weight: 500;
        }
        .report-card .report-tags .tag.hot {
            background-color: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
        }
        .report-card .report-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .report-card .report-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
            line-height: 1.7;
        }
        .report-card .report-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .report-card .report-meta .date {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .report-card .report-meta .date i {
            font-size: 0.8rem;
        }
        .report-card .btn-read-more {
            background: transparent;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            font-size: 0.85rem;
            padding: 7px 18px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            transition: all 0.2s ease;
        }
        .report-card .btn-read-more:hover {
            background-color: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
            border-color: var(--accent-primary);
        }

        /* ========== Winrate Section ========== */
        .winrate-section {
            padding: 32px 0;
            background-color: transparent;
        }
        .winrate-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
        }
        .winrate-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            flex-wrap: wrap;
            gap: 12px;
        }
        .winrate-row:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .winrate-row .team-info {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 600;
            color: var(--text-primary);
            font-size: 0.95rem;
        }
        .winrate-row .team-info .league-badge {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--accent-primary);
            display: inline-block;
            flex-shrink: 0;
        }
        .winrate-row .winrate-bar-container {
            flex: 1;
            max-width: 280px;
            min-width: 140px;
        }
        .winrate-row .winrate-bar-bg {
            height: 8px;
            background-color: var(--bg-elevated);
            border-radius: 4px;
            overflow: hidden;
        }
        .winrate-row .winrate-bar-fill {
            height: 100%;
            border-radius: 4px;
            background-color: var(--accent-primary);
            transition: width 0.6s ease;
        }
        .winrate-row .winrate-value {
            font-weight: 700;
            color: var(--accent-primary);
            font-size: 1rem;
            min-width: 52px;
            text-align: right;
        }

        /* ========== Key Metrics ========== */
        .metrics-section {
            padding: 32px 0;
        }
        .metric-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, border-color 0.25s ease;
        }
        .metric-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
        }
        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
        }
        .metric-card .metric-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
        }
        .metric-card .metric-value .suffix {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 400;
            margin-left: 2px;
        }
        .metric-card .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.85rem;
            margin-top: 8px;
            font-weight: 500;
        }
        .metric-card .metric-trend.up {
            color: var(--accent-primary);
        }
        .metric-card .metric-trend.down {
            color: var(--accent-secondary);
        }

        /* ========== Tag Cloud ========== */
        .tagcloud-section {
            padding: 32px 0;
        }
        .tagcloud-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            box-shadow: var(--shadow-card);
        }
        .tagcloud-card .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tagcloud-card .tag-cloud a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-tag);
            background-color: rgba(61, 214, 140, 0.08);
            color: var(--text-secondary);
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .tagcloud-card .tag-cloud a:hover {
            background-color: rgba(61, 214, 140, 0.15);
            color: var(--accent-primary);
            border-color: rgba(61, 214, 140, 0.3);
        }
        .tagcloud-card .tag-cloud a.orange-tag {
            background-color: rgba(255, 122, 69, 0.08);
            color: var(--text-secondary);
        }
        .tagcloud-card .tag-cloud a.orange-tag:hover {
            background-color: rgba(255, 122, 69, 0.15);
            color: var(--accent-secondary);
            border-color: rgba(255, 122, 69, 0.3);
        }

        /* ========== Related Topics ========== */
        .related-topics-section {
            padding: 32px 0;
        }
        .topic-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 28px;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .topic-card:hover {
            transform: translateY(-2px);
            border-color: var(--accent-primary);
            box-shadow: 0 4px 20px rgba(0,0,0,0.45);
        }
        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 1.2rem;
        }
        .topic-card .topic-icon.green {
            background: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
        }
        .topic-card .topic-icon.orange {
            background: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
        }
        .topic-card .topic-icon.blue {
            background: rgba(77, 163, 255, 0.12);
            color: var(--accent-tertiary);
        }
        .topic-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .topic-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            padding: 48px 0 32px;
        }
        .cta-card {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .cta-card .cta-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .cta-card .cta-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .cta-card .btn-primary-cta {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .cta-card .btn-primary-cta:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }
        .cta-card .btn-secondary-cta {
            background: transparent;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            font-weight: 500;
            font-size: 0.9rem;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            white-space: nowrap;
        }
        .cta-card .btn-secondary-cta:hover {
            background: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }
        .footer-links {
            list-style: none;
            padding-left: 0;
            margin-bottom: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links li a {
            color: var(--text-secondary);
            font-size: 0.88rem;
            transition: color 0.2s ease;
        }
        .footer-links li a:hover {
            color: var(--accent-primary);
        }
        .copyright {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 0.82rem;
            color: var(--text-muted);
            text-align: center;
        }
        .copyright a {
            color: var(--text-muted);
        }
        .copyright a:hover {
            color: var(--accent-primary);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }
            .navbar-nav {
                gap: 8px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }
            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }
            .page-header-section h1 {
                font-size: 2rem;
            }
            .report-card .report-img-wrapper {
                min-height: 150px;
            }
            .cta-card {
                flex-direction: column;
                text-align: center;
                padding: 28px 24px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
                padding-bottom: 80px;
            }
            .page-header-section {
                padding: 24px 0 16px;
            }
            .page-header-section h1 {
                font-size: 1.7rem;
            }
            .category-intro-card {
                padding: 20px 18px;
            }
            .report-card .report-body {
                padding: 18px 16px;
            }
            .report-card .report-title {
                font-size: 1rem;
            }
            .report-card .report-summary {
                font-size: 0.85rem;
            }
            .overview-card {
                padding: 16px 12px;
            }
            .overview-card .overview-value {
                font-size: 1.5rem;
            }
            .winrate-card {
                padding: 20px 16px;
            }
            .metric-card {
                padding: 18px 16px;
            }
            .metric-card .metric-value {
                font-size: 1.5rem;
            }
            .tagcloud-card {
                padding: 20px 16px;
            }
            .topic-card {
                padding: 20px 18px;
            }
            .cta-card {
                padding: 24px 18px;
            }
            .cta-card .cta-text h3 {
                font-size: 1.2rem;
            }
            .section-heading h2 {
                font-size: 1.3rem;
            }
            .site-footer {
                padding: 32px 0 20px;
            }
        }

        @media (max-width: 575.98px) {
            .page-header-section h1 {
                font-size: 1.45rem;
            }
            .section-heading {
                gap: 8px;
                margin-bottom: 16px;
            }
            .section-heading .heading-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .section-heading h2 {
                font-size: 1.15rem;
            }
            .report-card .report-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .report-card .report-meta .btn-read-more {
                width: 100%;
                text-align: center;
            }
            .winrate-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .winrate-row .winrate-bar-container {
                max-width: 100%;
                width: 100%;
            }
            .metric-card .metric-value {
                font-size: 1.3rem;
            }
            .cta-card .btn-primary-cta,
            .cta-card .btn-secondary-cta {
                width: 100%;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.35);
            --shadow-cta: 0 4px 16px rgba(61,214,140,0.22);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            padding-bottom: 32px;
            min-height: 100vh;
        }

        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        button,
        .btn {
            transition: all 0.2s ease;
        }

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

        .container {
            max-width: 1200px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }

        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }

        .navbar {
            padding: 12px 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .navbar-brand:hover {
            color: var(--accent-primary);
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }

        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }

        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }

        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }

        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 分类头部 ========== */
        .category-header {
            padding: 56px 0 36px;
            background-image: url('/assets/images/4d165c75d6ed57b3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }

        .category-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.88);
            z-index: 1;
        }

        .category-header .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            margin-bottom: 16px;
            --bs-breadcrumb-divider-color: var(--text-muted);
            --bs-breadcrumb-item-active-color: var(--text-secondary);
        }

        .breadcrumb-item a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: color 0.2s ease;
        }

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

        .breadcrumb-item.active {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        .breadcrumb-item+.breadcrumb-item::before {
            content: '/';
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .category-header h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .category-header h1 .accent {
            color: var(--accent-primary);
        }

        .category-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 820px;
            line-height: 1.9;
            margin-bottom: 18px;
        }

        .cat-header-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .cat-header-tag {
            display: inline-block;
            background: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            font-size: 0.78rem;
            font-weight: 500;
            padding: 5px 14px;
            border-radius: 20px;
            border: 1px solid rgba(61, 214, 140, 0.25);
            letter-spacing: 0.02em;
        }

        /* ========== 热门联赛条 ========== */
        .league-strip {
            background-color: var(--bg-elevated);
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .league-strip .league-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            min-width: 140px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .league-strip .league-item:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .league-strip .league-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: var(--accent-primary);
            flex-shrink: 0;
        }

        .league-strip .league-name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .league-strip .league-count {
            font-size: 0.75rem;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .league-strip .strip-label {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            white-space: nowrap;
            margin-bottom: 8px;
        }

        .league-strip .strip-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
        }

        /* ========== 板块通用 ========== */
        .section-block {
            padding: 44px 0;
        }

        .section-block.alt-bg {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-label {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.01em;
        }

        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            max-width: 700px;
            line-height: 1.8;
        }

        /* ========== 列表卡片 ========== */
        .preview-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: row;
        }

        .preview-card:hover {
            border-color: rgba(61, 214, 140, 0.6);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .preview-card .card-img-wrap {
            flex-shrink: 0;
            width: 220px;
            min-height: 100%;
            position: relative;
            overflow: hidden;
        }

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

        .preview-card .card-body {
            flex: 1;
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .preview-card .card-tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            align-items: center;
        }

        .preview-card .match-tag {
            display: inline-block;
            background: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            border: 1px solid rgba(61, 214, 140, 0.2);
            letter-spacing: 0.03em;
        }

        .preview-card .date-tag {
            display: inline-block;
            background: transparent;
            color: var(--text-muted);
            font-size: 0.72rem;
            font-weight: 500;
            padding: 3px 8px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.02em;
        }

        .preview-card .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0;
        }

        .preview-card .card-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
            flex: 1;
        }

        .preview-card .btn-read-more {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.78rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            align-self: flex-start;
        }

        .preview-card .btn-read-more:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }

        /* ========== 数据概览侧栏 ========== */
        .data-overview-card {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            margin-bottom: 20px;
        }

        .data-overview-card .doc-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .data-overview-card .doc-title i {
            color: var(--accent-primary);
            font-size: 1.1rem;
        }

        .data-overview-card .doc-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 52, 66, 0.6);
        }

        .data-overview-card .doc-item:last-child {
            border-bottom: none;
        }

        .data-overview-card .doc-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }

        .data-overview-card .doc-value {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--accent-primary);
        }

        /* ========== 标签云 ========== */
        .tag-cloud-card {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 20px;
        }

        .tag-cloud-card .tc-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .tag-cloud-card .tc-title i {
            color: var(--accent-tertiary);
            font-size: 1rem;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud .cloud-tag {
            display: inline-block;
            background: rgba(77, 163, 255, 0.1);
            color: var(--accent-tertiary);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid rgba(77, 163, 255, 0.22);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .tag-cloud .cloud-tag:hover {
            background-color: rgba(77, 163, 255, 0.2);
            border-color: var(--accent-tertiary);
            color: #fff;
        }

        .tag-cloud .cloud-tag.hot {
            background: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
            border-color: rgba(255, 122, 69, 0.3);
        }

        .tag-cloud .cloud-tag.hot:hover {
            background-color: rgba(255, 122, 69, 0.22);
            border-color: var(--accent-secondary);
            color: #fff;
        }

        /* ========== 相关专题 ========== */
        .topic-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            border-color: rgba(61, 214, 140, 0.6);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }

        .topic-card .topic-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .topic-card .topic-body {
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .topic-card .topic-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin: 0;
        }

        .topic-card .topic-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .topic-card .topic-link {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-primary);
            align-self: flex-start;
            transition: color 0.2s ease;
        }

        .topic-card .topic-link:hover {
            color: #2FBE76;
        }

        /* ========== FAQ手风琴 ========== */
        .faq-section .accordion-item {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 10px;
            overflow: hidden;
            transition: border-color 0.25s ease;
        }

        .faq-section .accordion-item:hover {
            border-color: rgba(61, 214, 140, 0.5);
        }

        .faq-section .accordion-button {
            background-color: var(--bg-panel);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 18px 22px;
            border: none;
            box-shadow: none !important;
            transition: background-color 0.2s ease, color 0.2s ease;
        }

        .faq-section .accordion-button:not(.collapsed) {
            background-color: var(--bg-elevated);
            color: var(--accent-primary);
            font-weight: 700;
        }

        .faq-section .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%239AA7B5'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform 0.2s ease;
        }

        .faq-section .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%233DD68C'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .faq-section .accordion-button:focus {
            outline: 2px solid var(--accent-primary);
            outline-offset: -2px;
        }

        .faq-section .accordion-body {
            background-color: var(--bg-panel);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            padding: 0 22px 18px;
            border-top: 1px solid rgba(42, 52, 66, 0.5);
            padding-top: 14px;
        }

        /* ========== 订阅CTA ========== */
        .subscribe-cta {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .subscribe-cta .sc-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .subscribe-cta .sc-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
        }

        .subscribe-cta .btn-back-home {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }

        .subscribe-cta .btn-back-home:hover {
            background-color: #E0653A;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.3);
            color: #0E1116;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: #0B0E13;
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 20px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .site-footer .footer-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 300px;
        }

        .site-footer .footer-heading {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.06em;
            margin-bottom: 14px;
        }

        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-links li {
            margin-bottom: 8px;
        }

        .site-footer .footer-links a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

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

        .site-footer .copyright {
            border-top: 1px solid rgba(42, 52, 66, 0.6);
            margin-top: 32px;
            padding-top: 20px;
            font-size: 0.78rem;
            color: var(--text-muted);
            text-align: center;
        }

        .site-footer .copyright a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }

        .site-footer .copyright a:hover {
            color: var(--accent-primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }

            .navbar-nav {
                gap: 8px;
            }

            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }

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

            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }

            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }

            .category-header {
                padding: 40px 0 28px;
            }

            .category-header h1 {
                font-size: 1.8rem;
            }

            .category-desc {
                font-size: 0.95rem;
            }

            .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 767.98px) {
            .preview-card {
                flex-direction: column;
            }

            .preview-card .card-img-wrap {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
                position: relative;
            }

            .preview-card .card-img-wrap img {
                position: absolute;
                inset: 0;
                width: 100%;
                height: 100%;
            }

            .preview-card .card-body {
                padding: 16px 18px;
            }

            .league-strip .league-item {
                min-width: 100px;
                padding: 8px 12px;
            }

            .league-strip .league-name {
                font-size: 0.8rem;
            }

            .league-strip .league-count {
                font-size: 0.68rem;
            }

            .subscribe-cta {
                padding: 22px 20px;
                flex-direction: column;
                text-align: center;
            }

            .subscribe-cta .btn-back-home {
                width: 100%;
                text-align: center;
            }

            .section-block {
                padding: 32px 0;
            }

            .category-header h1 {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 575.98px) {
            body {
                font-size: 15px;
            }

            .navbar-brand {
                font-size: 1.2rem;
            }

            .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.82rem;
            }

            .category-header {
                padding: 30px 0 20px;
            }

            .category-header h1 {
                font-size: 1.3rem;
                letter-spacing: 0;
            }

            .category-desc {
                font-size: 0.88rem;
                line-height: 1.75;
            }

            .cat-header-tag {
                font-size: 0.7rem;
                padding: 4px 10px;
            }

            .preview-card .card-title {
                font-size: 0.95rem;
            }

            .preview-card .card-text {
                font-size: 0.82rem;
            }

            .preview-card .btn-read-more {
                font-size: 0.72rem;
                padding: 7px 14px;
            }

            .data-overview-card,
            .tag-cloud-card {
                padding: 16px 14px;
            }

            .data-overview-card .doc-label {
                font-size: 0.78rem;
            }

            .data-overview-card .doc-value {
                font-size: 0.85rem;
            }

            .tag-cloud .cloud-tag {
                font-size: 0.68rem;
                padding: 5px 11px;
            }

            .topic-card .topic-title {
                font-size: 0.92rem;
            }

            .topic-card .topic-text {
                font-size: 0.78rem;
            }

            .faq-section .accordion-button {
                font-size: 0.85rem;
                padding: 14px 16px;
            }

            .faq-section .accordion-body {
                font-size: 0.82rem;
                padding: 0 16px 14px;
                padding-top: 10px;
            }

            .subscribe-cta .sc-title {
                font-size: 1.05rem;
            }

            .subscribe-cta .sc-text {
                font-size: 0.8rem;
            }

            .site-footer {
                padding: 36px 0 20px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.35);
            --shadow-cta: 0 4px 16px rgba(61,214,140,0.22);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 88px;
        }
        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button, .btn {
            transition: all 0.2s ease;
        }
        button:focus-visible, .btn:focus-visible, a:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }
        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .navbar-brand:hover {
            color: var(--accent-primary);
        }
        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }
        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }
        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== Page Header ========== */
        .page-header {
            padding: 48px 0 36px;
            border-bottom: 1px solid var(--border-color);
            background-color: var(--bg-panel);
        }
        .page-header h1 {
            font-size: 2.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }
        .page-header h1 .highlight {
            color: var(--accent-primary);
        }
        .breadcrumb {
            margin-bottom: 0;
            font-size: 0.88rem;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent-primary);
        }
        .breadcrumb .separator {
            margin: 0 8px;
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--accent-primary);
        }
        .page-desc {
            margin-top: 16px;
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 860px;
            line-height: 1.8;
        }

        /* ========== Section Common ========== */
        .section-block {
            padding: 48px 0;
        }
        .section-block.alt-bg {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 0.98rem;
            margin-bottom: 32px;
            max-width: 720px;
        }
        .section-title-wrap {
            margin-bottom: 28px;
        }
        .section-title-wrap .accent-line {
            width: 48px;
            height: 3px;
            background-color: var(--accent-primary);
            border-radius: 2px;
            margin-bottom: 14px;
        }

        /* ========== Strategy List Cards ========== */
        .strategy-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 22px 24px;
            margin-bottom: 18px;
            display: flex;
            gap: 20px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }
        .strategy-card:hover {
            border-color: var(--accent-primary);
            box-shadow: 0 4px 20px rgba(61, 214, 140, 0.18);
            transform: translateY(-2px);
        }
        .strategy-card .card-icon {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-btn);
            background-color: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.3rem;
        }
        .strategy-card .card-body {
            flex: 1;
        }
        .strategy-card .card-title {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .strategy-card .card-summary {
            color: var(--text-secondary);
            font-size: 0.94rem;
            margin-bottom: 12px;
            line-height: 1.75;
        }
        .strategy-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .strategy-card .card-meta .tag-badge {
            background-color: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            font-size: 0.78rem;
            font-weight: 500;
        }
        .strategy-card .btn-read {
            background-color: transparent;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            border-radius: var(--radius-btn);
            padding: 6px 16px;
            font-size: 0.82rem;
            font-weight: 500;
            transition: background-color 0.2s ease, color 0.2s ease;
        }
        .strategy-card .btn-read:hover {
            background-color: rgba(61, 214, 140, 0.1);
            color: var(--accent-primary);
        }
        .view-more-btn {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 10px 28px;
            border: none;
            font-size: 0.9rem;
            transition: background-color 0.2s ease, box-shadow 0.2s ease;
        }
        .view-more-btn:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }

        /* ========== Tag Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud .tag-link {
            background-color: rgba(61, 214, 140, 0.1);
            color: var(--accent-primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(61, 214, 140, 0.2);
            transition: background-color 0.2s ease, border-color 0.2s ease;
        }
        .tag-cloud .tag-link:hover {
            background-color: rgba(61, 214, 140, 0.2);
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .tag-cloud .tag-link.hot {
            background-color: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
            border-color: rgba(255, 122, 69, 0.25);
        }
        .tag-cloud .tag-link.hot:hover {
            background-color: rgba(255, 122, 69, 0.22);
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }

        /* ========== Data Overview Sidebar ========== */
        .data-overview-card {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }
        .data-overview-card .overview-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .data-overview-card .stat-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 52, 66, 0.6);
        }
        .data-overview-card .stat-item:last-child {
            border-bottom: none;
        }
        .data-overview-card .stat-label {
            color: var(--text-secondary);
            font-size: 0.88rem;
        }
        .data-overview-card .stat-value {
            font-weight: 600;
            color: var(--accent-primary);
            font-size: 0.95rem;
        }
        .data-overview-card .stat-value.orange {
            color: var(--accent-secondary);
        }

        /* ========== Common Mistakes / Tips Cards ========== */
        .mistake-card, .tip-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .mistake-card:hover, .tip-card:hover {
            border-color: var(--accent-secondary);
            box-shadow: 0 4px 18px rgba(255, 122, 69, 0.15);
        }
        .mistake-card .card-icon, .tip-card .card-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
            font-size: 1.1rem;
        }
        .mistake-card .card-icon {
            background-color: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
        }
        .tip-card .card-icon {
            background-color: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
        }
        .mistake-card .card-title, .tip-card .card-title {
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .mistake-card .card-text, .tip-card .card-text {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ========== Related Topics ========== */
        .related-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
            height: 100%;
        }
        .related-card:hover {
            border-color: var(--accent-primary);
            box-shadow: 0 4px 20px rgba(61, 214, 140, 0.15);
            transform: translateY(-2px);
        }
        .related-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .related-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .related-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .related-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.35);
        }
        .related-card .card-content {
            padding: 18px 20px;
        }
        .related-card .card-content .card-title {
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .related-card .card-content .card-desc {
            color: var(--text-secondary);
            font-size: 0.86rem;
            line-height: 1.65;
        }

        /* ========== Subscribe CTA ========== */
        .subscribe-cta {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .subscribe-cta .cta-text {
            flex: 1;
            min-width: 240px;
        }
        .subscribe-cta .cta-text h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .subscribe-cta .cta-text p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            margin-bottom: 0;
        }
        .subscribe-cta .btn-cta {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            border: none;
            font-size: 0.92rem;
            white-space: nowrap;
            transition: background-color 0.2s ease, box-shadow 0.2s ease;
        }
        .subscribe-cta .btn-cta:hover {
            background-color: #E96A3A;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.28);
            color: #0E1116;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 48px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-heading {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.88rem;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--accent-primary);
        }
        .copyright {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            text-align: center;
            color: var(--text-muted);
            font-size: 0.82rem;
        }
        .copyright a {
            color: var(--text-secondary);
        }
        .copyright a:hover {
            color: var(--accent-primary);
        }

        /* ========== Bottom Fixed CTA Bar ========== */
        .fixed-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1020;
            background-color: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 12px 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            box-shadow: 0 -2px 16px rgba(0,0,0,0.4);
        }
        .fixed-cta-bar .cta-label {
            color: var(--text-primary);
            font-size: 0.92rem;
            font-weight: 500;
        }
        .fixed-cta-bar .btn-cta {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 8px 20px;
            border: none;
            font-size: 0.85rem;
            white-space: nowrap;
            transition: background-color 0.2s ease;
        }
        .fixed-cta-bar .btn-cta:hover {
            background-color: #E96A3A;
            color: #0E1116;
        }

        /* ========== Responsive ========== */
        @media (min-width: 992px) {
            .navbar-collapse {
                background-color: transparent;
                border-radius: 0;
                padding: 0;
                margin-top: 0;
                border: none;
            }
            .navbar-nav {
                gap: 4px;
            }
            .navbar-nav .nav-link {
                padding: 8px 14px !important;
                font-size: 0.92rem;
            }
            .navbar-nav .nav-link.active::after {
                display: block;
            }
            .navbar-nav .nav-link.active {
                border-left: none;
                background-color: rgba(61, 214, 140, 0.1);
                border-radius: var(--radius-btn);
            }
            .navbar .btn-predict {
                margin-top: 0;
                width: auto;
            }
            .page-header h1 {
                font-size: 2.4rem;
            }
            .strategy-card {
                padding: 24px 28px;
            }
        }
        @media (max-width: 991.98px) {
            .page-header {
                padding: 36px 0 28px;
            }
            .page-header h1 {
                font-size: 1.8rem;
            }
            .strategy-card {
                flex-direction: column;
                gap: 14px;
                padding: 18px 20px;
            }
            .strategy-card .card-icon {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .subscribe-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 22px;
            }
        }
        @media (max-width: 767.98px) {
            body {
                padding-bottom: 70px;
            }
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }
            .navbar-nav {
                gap: 8px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }
            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .strategy-card .card-title {
                font-size: 1rem;
            }
            .strategy-card .card-summary {
                font-size: 0.88rem;
            }
            .fixed-cta-bar {
                padding: 10px 12px;
                gap: 10px;
            }
            .fixed-cta-bar .cta-label {
                font-size: 0.84rem;
                flex: 1;
            }
            .fixed-cta-bar .btn-cta {
                padding: 7px 16px;
                font-size: 0.8rem;
            }
        }
        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .page-header {
                padding: 28px 0 20px;
            }
            .page-header h1 {
                font-size: 1.3rem;
            }
            .page-desc {
                font-size: 0.9rem;
            }
            .section-block {
                padding: 32px 0;
            }
            .strategy-card {
                padding: 16px;
            }
            .subscribe-cta {
                padding: 18px 16px;
            }
            .subscribe-cta .cta-text h3 {
                font-size: 1.1rem;
            }
            .data-overview-card {
                padding: 18px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.35);
            --shadow-cta: 0 4px 16px rgba(61, 214, 140, 0.22);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 88px;
        }
        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        .btn {
            transition: all 0.2s ease;
        }
        button:focus-visible,
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
        }
        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }
        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .navbar-brand:hover {
            color: var(--accent-primary);
        }
        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }
        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }
        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }
            .navbar-nav {
                gap: 8px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }
            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }
        }
        /* ========== Category Hero ========== */
        .category-hero {
            padding: 48px 0 28px;
            background-image: url('/assets/images/39adf84a017ec059.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.88);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-primary);
        }
        .breadcrumb-nav .separator {
            color: var(--text-muted);
        }
        .breadcrumb-nav .current {
            color: var(--accent-primary);
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .category-hero h1 .highlight {
            color: var(--accent-primary);
        }
        .category-hero .category-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 760px;
            line-height: 1.85;
        }
        @media (max-width: 576px) {
            .category-hero {
                padding: 32px 0 20px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .category-desc {
                font-size: 0.95rem;
            }
        }
        /* ========== Main layout ========== */
        .category-main {
            padding: 48px 0 56px;
        }
        .section-header {
            margin-bottom: 28px;
        }
        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0;
        }
        /* ========== Strategy Card List ========== */
        .strategy-card {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.25s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .strategy-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .strategy-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }
        .strategy-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .strategy-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .strategy-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(14, 17, 22, 0.15) 0%, rgba(14, 17, 22, 0.55) 100%);
        }
        .strategy-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .strategy-card .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            background-color: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .strategy-card .card-tag.hot {
            background-color: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
        }
        .strategy-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }
        .strategy-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 16px;
            flex: 1;
            line-height: 1.75;
        }
        .strategy-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .strategy-card .btn-read {
            background-color: transparent;
            border: 1px solid var(--accent-primary);
            color: var(--accent-primary);
            font-weight: 500;
            font-size: 0.85rem;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            align-self: flex-start;
            margin-top: 4px;
        }
        .strategy-card .btn-read:hover {
            background-color: rgba(61, 214, 140, 0.08);
            box-shadow: var(--shadow-cta);
        }
        /* ========== Sidebar ========== */
        .side-widget {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            margin-bottom: 24px;
        }
        .side-widget h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }
        .side-widget .stat-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px solid rgba(42, 52, 66, 0.5);
        }
        .side-widget .stat-row:last-child {
            border-bottom: none;
        }
        .side-widget .stat-label {
            color: var(--text-secondary);
            font-size: 0.85rem;
        }
        .side-widget .stat-value {
            color: var(--accent-primary);
            font-weight: 700;
            font-size: 0.9rem;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud a {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: var(--radius-tag);
            background-color: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
            transition: all 0.2s ease;
            border: 1px solid rgba(61, 214, 140, 0.15);
        }
        .tag-cloud a:hover {
            background-color: rgba(61, 214, 140, 0.15);
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }
        .tag-cloud a.hot-tag {
            background-color: rgba(255, 122, 69, 0.08);
            color: var(--accent-secondary);
            border-color: rgba(255, 122, 69, 0.15);
        }
        .tag-cloud a.hot-tag:hover {
            background-color: rgba(255, 122, 69, 0.15);
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }
        /* ========== 支撑板块 ========== */
        .support-section {
            padding: 40px 0;
            border-top: 1px solid var(--border-color);
        }
        .support-section.bg-alt {
            background-color: var(--bg-panel);
        }
        .support-card {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
            transition: all 0.25s ease;
        }
        .support-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .support-card .support-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-btn);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .support-card .support-icon.green {
            background-color: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
        }
        .support-card .support-icon.orange {
            background-color: rgba(255, 122, 69, 0.12);
            color: var(--accent-secondary);
        }
        .support-card .support-icon.blue {
            background-color: rgba(77, 163, 255, 0.12);
            color: var(--accent-tertiary);
        }
        .support-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .support-card p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            margin-bottom: 0;
            line-height: 1.75;
        }
        /* ========== CTA Bar ========== */
        .cta-bar {
            background-color: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-bar .cta-text h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .cta-bar .cta-text p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            margin-bottom: 0;
        }
        .cta-bar .btn-home {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .cta-bar .btn-home:hover {
            background-color: #E86A38;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.22);
            color: #0E1116;
        }
        /* ========== FAQ ========== */
        .faq-section {
            padding: 40px 0;
        }
        .faq-item {
            background-color: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: all 0.2s ease;
        }
        .faq-item:hover {
            border-color: var(--accent-primary);
        }
        .faq-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }
        .faq-item h3 .faq-icon {
            color: var(--accent-primary);
            flex-shrink: 0;
            margin-top: 4px;
            font-size: 0.85rem;
        }
        .faq-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
            padding-left: 26px;
            line-height: 1.75;
        }
        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 48px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-desc {
            color: var(--text-secondary);
            font-size: 0.88rem;
            margin-bottom: 18px;
            line-height: 1.75;
        }
        .footer-heading {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--accent-primary);
        }
        .copyright {
            margin-top: 32px;
            padding-top: 18px;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.8rem;
            text-align: center;
        }
        .copyright a {
            color: var(--text-secondary);
        }
        .copyright a:hover {
            color: var(--accent-primary);
        }
        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-main {
                padding: 36px 0 40px;
            }
        }
        @media (max-width: 767.98px) {
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .category-hero .category-desc {
                font-size: 0.92rem;
            }
            .category-main {
                padding: 28px 0 32px;
            }
            .strategy-card .card-body {
                padding: 18px 18px 20px;
            }
            .strategy-card h3 {
                font-size: 1.02rem;
            }
            .strategy-card p {
                font-size: 0.85rem;
            }
            .cta-bar {
                padding: 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-bar .btn-home {
                width: 100%;
                text-align: center;
            }
            .side-widget {
                padding: 18px;
            }
        }
        @media (max-width: 575.98px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .category-hero .category-desc {
                font-size: 0.88rem;
                line-height: 1.7;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .strategy-card .card-img-wrap {
                aspect-ratio: 4 / 3;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item h3 {
                font-size: 0.95rem;
            }
            .faq-item p {
                font-size: 0.85rem;
                padding-left: 0;
            }
        }

/* roulang page: category4 */
:root {
            --bg-base: #0E1116;
            --bg-panel: #171C24;
            --bg-elevated: #1F2733;
            --text-primary: #E6EDF5;
            --text-secondary: #9AA7B5;
            --text-muted: #647382;
            --accent-primary: #3DD68C;
            --accent-secondary: #FF7A45;
            --accent-tertiary: #4DA3FF;
            --border-color: #2A3442;
            --radius-card: 10px;
            --radius-btn: 6px;
            --radius-tag: 4px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.35);
            --shadow-cta: 0 4px 16px rgba(61,214,140,0.22);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-bottom: 88px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--accent-tertiary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-primary);
        }

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

        button, .btn {
            transition: all 0.2s ease;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: background-color 0.25s ease;
        }
        .site-header.scrolled {
            background-color: var(--bg-elevated);
            border-bottom-color: #374151;
        }
        .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }
        .navbar-brand:hover {
            color: var(--accent-primary);
        }
        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--accent-primary) 0%, #1F8C5A 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0E1116;
            font-weight: 800;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .navbar-nav {
            gap: 4px;
        }
        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 14px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease, background-color 0.2s ease;
        }
        .navbar-nav .nav-link:hover {
            color: var(--text-primary);
            background-color: rgba(61, 214, 140, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--accent-primary);
            background-color: rgba(61, 214, 140, 0.1);
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 14px;
            right: 14px;
            height: 2px;
            background-color: var(--accent-primary);
            border-radius: 1px;
        }
        .navbar .btn-predict {
            background-color: var(--accent-primary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .navbar .btn-predict:hover {
            background-color: #2FBE76;
            box-shadow: var(--shadow-cta);
            color: #0E1116;
        }
        .navbar-toggler {
            border: 1px solid var(--border-color);
            background-color: var(--bg-elevated);
            border-radius: var(--radius-btn);
            padding: 8px 12px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-primary);
            outline-offset: 2px;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23E6EDF5' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== Category Hero / Breadcrumb ========== */
        .category-hero {
            background-image: url('/assets/images/39adf84a017ec059.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--border-color);
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(14, 17, 22, 0.85);
            z-index: 1;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-primary);
        }
        .breadcrumb-nav .sep {
            color: var(--text-muted);
            font-size: 0.75rem;
        }
        .breadcrumb-nav .current {
            color: var(--accent-primary);
            font-weight: 500;
        }
        .category-hero h1 {
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
            line-height: 1.3;
        }
        .category-hero .category-desc {
            font-size: 1rem;
            color: var(--text-secondary);
            max-width: 820px;
            line-height: 1.8;
        }

        /* ========== Main Section ========== */
        main {
            padding: 48px 0 64px;
        }
        .section-block {
            margin-bottom: 48px;
        }
        .section-block:last-child {
            margin-bottom: 0;
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .section-divider {
            height: 1px;
            background: var(--border-color);
            margin: 32px 0;
            border: none;
        }

        /* ========== News Cards ========== */
        .news-card {
            display: flex;
            gap: 20px;
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
            margin-bottom: 16px;
        }
        .news-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .news-card-thumb {
            width: 220px;
            min-width: 220px;
            height: 140px;
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            background-color: var(--bg-elevated);
            flex-shrink: 0;
        }
        .news-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .news-card:hover .news-card-thumb img {
            transform: scale(1.04);
        }
        .news-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 8px;
        }
        .news-card-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .news-card-tag {
            font-size: 0.75rem;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            background: rgba(61, 214, 140, 0.12);
            color: var(--accent-primary);
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .news-card-tag.hot {
            background: rgba(255, 122, 69, 0.14);
            color: var(--accent-secondary);
        }
        .news-card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .news-card-summary {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .news-card-link {
            font-size: 0.85rem;
            color: var(--accent-primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 10px;
            transition: color 0.2s ease, gap 0.2s ease;
        }
        .news-card-link:hover {
            color: var(--text-primary);
            gap: 8px;
        }

        /* ========== Cards / Panel ========== */
        .info-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            height: 100%;
        }
        .info-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }
        .info-card .icon-wrap {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: rgba(61, 214, 140, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-primary);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .info-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .info-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .info-card .data-highlight {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-primary);
            letter-spacing: 0.01em;
        }

        /* ========== Tags ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud a {
            font-size: 0.82rem;
            padding: 6px 16px;
            border-radius: 20px;
            background: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
            font-weight: 500;
            border: 1px solid rgba(61, 214, 140, 0.2);
            transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
        }
        .tag-cloud a:hover {
            background: rgba(61, 214, 140, 0.18);
            color: var(--text-primary);
            border-color: var(--accent-primary);
        }
        .tag-cloud a.orange-tag {
            background: rgba(255, 122, 69, 0.08);
            color: var(--accent-secondary);
            border-color: rgba(255, 122, 69, 0.2);
        }
        .tag-cloud a.orange-tag:hover {
            background: rgba(255, 122, 69, 0.18);
            color: var(--text-primary);
            border-color: var(--accent-secondary);
        }

        /* ========== Stats sidebar ========== */
        .stats-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
        }
        .stats-panel h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-color);
        }
        .stats-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .stats-item:last-child {
            border-bottom: none;
        }
        .stats-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .stats-value {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--accent-primary);
        }

        /* ========== Rumor List ========== */
        .rumor-list {
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
        }
        .rumor-item {
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .rumor-item:last-child {
            border-bottom: none;
        }
        .rumor-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-secondary);
            margin-top: 8px;
            flex-shrink: 0;
        }
        .rumor-text {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .rumor-text strong {
            color: var(--text-primary);
        }

        /* ========== Focus Team Cards ========== */
        .team-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            height: 100%;
            transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }
        .team-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .team-card-top {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .team-logo {
            width: 44px;
            height: 44px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--bg-elevated) 0%, #2A3442 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--accent-primary);
            font-size: 0.85rem;
            letter-spacing: 0.02em;
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }
        .team-name {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .team-card .stat-row {
            display: flex;
            justify-content: space-between;
            padding: 6px 0;
            font-size: 0.85rem;
            border-bottom: 1px solid var(--border-color);
        }
        .team-card .stat-row:last-child {
            border-bottom: none;
        }
        .team-card .stat-row .label {
            color: var(--text-muted);
        }
        .team-card .stat-row .value {
            color: var(--text-primary);
            font-weight: 500;
        }
        .team-card .stat-row .value.green {
            color: var(--accent-primary);
        }

        /* ========== CTA Bar ========== */
        .cta-bar {
            background: var(--bg-elevated);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-bar .cta-text h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .cta-bar .cta-text p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }
        .btn-cta {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .btn-cta:hover {
            background-color: #E86A3A;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.3);
            color: #0E1116;
        }
        .btn-cta-outline {
            background: transparent;
            color: var(--accent-primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--accent-primary);
            white-space: nowrap;
        }
        .btn-cta-outline:hover {
            background: rgba(61, 214, 140, 0.08);
            color: var(--accent-primary);
        }

        /* ========== FAQ ========== */
        .faq-card {
            background: var(--bg-panel);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            height: 100%;
        }
        .faq-card .faq-question {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        .faq-card .faq-question .faq-icon {
            color: var(--accent-primary);
            flex-shrink: 0;
            margin-top: 4px;
        }
        .faq-card .faq-answer {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 24px;
            margin-bottom: 0;
        }

        /* ========== Bottom Fixed CTA ========== */
        .bottom-cta-bar {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border-color);
            padding: 12px 16px;
            z-index: 1025;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .bottom-cta-bar .cta-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .bottom-cta-bar .btn-bottom {
            background-color: var(--accent-secondary);
            color: #0E1116;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            border: none;
            white-space: nowrap;
        }
        .bottom-cta-bar .btn-bottom:hover {
            background-color: #E86A3A;
            box-shadow: 0 4px 16px rgba(255, 122, 69, 0.3);
            color: #0E1116;
        }

        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-panel);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 24px;
            margin-top: 48px;
            position: relative;
            z-index: 10;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-heading {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--accent-primary);
        }
        .copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        .copyright a {
            color: var(--text-secondary);
        }
        .copyright a:hover {
            color: var(--accent-primary);
        }

        /* ========== Responsive ========== */
        @media (min-width: 992px) {
            .navbar-collapse {
                background-color: transparent;
                padding: 0;
                margin-top: 0;
                border: none;
            }
            .navbar-nav {
                gap: 4px;
            }
            .navbar-nav .nav-link.active::after {
                display: block;
            }
            .navbar-nav .nav-link.active {
                border-left: none;
                background-color: rgba(61, 214, 140, 0.1);
                border-radius: var(--radius-btn);
            }
            .navbar .btn-predict {
                margin-top: 0;
                width: auto;
            }
            .bottom-cta-bar {
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
            }
        }

        @media (min-width: 768px) and (max-width: 991.98px) {
            .category-hero h1 {
                font-size: 2rem;
            }
            .news-card-thumb {
                width: 180px;
                min-width: 180px;
                height: 120px;
            }
            .bottom-cta-bar {
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
            }
        }

        @media (max-width: 767.98px) {
            body {
                font-size: 15px;
                padding-bottom: 80px;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-collapse {
                background-color: var(--bg-elevated);
                border-radius: var(--radius-card);
                padding: 16px;
                margin-top: 10px;
                border: 1px solid var(--border-color);
            }
            .navbar-nav {
                gap: 8px;
            }
            .navbar-nav .nav-link {
                padding: 10px 14px !important;
                font-size: 0.95rem;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                border-left: 3px solid var(--accent-primary);
                background-color: rgba(61, 214, 140, 0.08);
                border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
            }
            .navbar .btn-predict {
                margin-top: 8px;
                width: 100%;
                text-align: center;
            }
            .category-hero {
                padding: 36px 0 32px;
            }
            .category-hero h1 {
                font-size: 1.6rem;
            }
            .news-card {
                flex-direction: column;
                padding: 14px;
            }
            .news-card-thumb {
                width: 100%;
                min-width: 100%;
                height: 180px;
            }
            .cta-bar {
                padding: 20px;
                flex-direction: column;
                text-align: center;
            }
            .cta-bar .cta-text h3 {
                font-size: 1.05rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .bottom-cta-bar {
                position: sticky;
                bottom: 0;
                padding: 10px 12px;
                min-height: 56px;
                max-height: 64px;
            }
            .bottom-cta-bar .cta-label {
                font-size: 0.82rem;
            }
            .bottom-cta-bar .btn-bottom {
                font-size: 0.8rem;
                padding: 6px 16px;
            }
        }

        @media (max-width: 575.98px) {
            .category-hero h1 {
                font-size: 1.4rem;
            }
            .news-card-thumb {
                height: 160px;
            }
            .news-card-title {
                font-size: 0.95rem;
            }
            .news-card-summary {
                font-size: 0.85rem;
            }
            .cta-bar {
                padding: 16px;
            }
            .btn-cta, .btn-cta-outline {
                width: 100%;
                text-align: center;
            }
            .team-card {
                padding: 16px;
            }
            .faq-card {
                padding: 18px;
            }
            .stats-panel, .rumor-list {
                padding: 18px;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}