/* roulang page: index */
:root {
            --douyu-black: #14171C;
            --douyu-dark: #1E232A;
            --douyu-orange: #FF6B1A;
            --douyu-orange-dark: #E85A00;
            --douyu-orange-light: #FFF0E5;
            --douyu-cyan: #00B8D9;
            --douyu-teal: #00C2A8;
            --douyu-bg: #F5F7FA;
            --douyu-gray: #6B7280;
            --douyu-gray-light: #9CA3AF;
            --douyu-border: #E6EAF0;
            --douyu-white: #FFFFFF;
            --douyu-radius: 14px;
            --douyu-radius-sm: 10px;
            --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
            --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
            --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --douyu-transition: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--douyu-font);
            background-color: var(--douyu-bg);
            color: var(--douyu-black);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--douyu-transition);
        }

        a:hover {
            color: var(--douyu-orange);
            text-decoration: none;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--douyu-font);
        }

        .container {
            max-width: 1200px;
        }

        .douyu-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        @media (min-width: 576px) {
            .douyu-container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }

        @media (min-width: 992px) {
            .douyu-container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== HEADER / NAV ===== */
        .douyu-header {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
        }

        .douyu-header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .douyu-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--douyu-black);
            white-space: nowrap;
        }

        .douyu-logo:hover {
            color: var(--douyu-orange);
        }

        .douyu-logo-icon {
            width: 36px;
            height: 36px;
            background: var(--douyu-orange);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .douyu-nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .douyu-nav-desktop>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: all var(--douyu-transition);
        }

        .douyu-nav-desktop>li>a:hover,
        .douyu-nav-desktop>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }

        .douyu-nav-desktop>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }

        .douyu-nav-desktop>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--douyu-orange);
            border-radius: 3px;
        }

        .douyu-nav-cta {
            background: var(--douyu-orange);
            color: #fff !important;
            border-radius: 10px;
            padding: 10px 20px !important;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            border: 2px solid var(--douyu-orange);
            white-space: nowrap;
            margin-left: 8px;
        }

        .douyu-nav-cta:hover {
            background: var(--douyu-orange-dark) !important;
            border-color: var(--douyu-orange-dark);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }

        .douyu-nav-toggle {
            display: none;
            background: var(--douyu-black);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 20px;
            cursor: pointer;
            transition: background var(--douyu-transition);
            align-items: center;
            justify-content: center;
        }

        .douyu-nav-toggle:hover {
            background: var(--douyu-orange);
        }

        .douyu-mobile-menu {
            display: none;
            background: var(--douyu-white);
            border-top: 1px solid var(--douyu-border);
            padding: 12px 16px 20px;
            list-style: none;
            margin: 0;
        }

        .douyu-mobile-menu>li>a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            transition: all var(--douyu-transition);
        }

        .douyu-mobile-menu>li>a:hover,
        .douyu-mobile-menu>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }

        .douyu-mobile-menu>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }

        @media (max-width: 991.98px) {
            .douyu-nav-desktop {
                display: none;
            }

            .douyu-nav-toggle {
                display: flex;
            }

            .douyu-mobile-menu.show {
                display: block;
            }
        }

        /* ===== HERO ===== */
        .douyu-hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 100px;
            overflow: hidden;
        }

        .douyu-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(105deg, rgba(20, 23, 28, 0.92) 0%, rgba(20, 23, 28, 0.65) 45%, rgba(20, 23, 28, 0.35) 70%, rgba(20, 23, 28, 0.55) 100%);
            z-index: 1;
        }

        .douyu-hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
            color: #fff;
        }

        .douyu-hero-badge {
            display: inline-block;
            background: rgba(255, 107, 26, 0.18);
            border: 1px solid rgba(255, 107, 26, 0.5);
            color: var(--douyu-orange);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .douyu-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 20px;
            color: #fff;
            letter-spacing: 0.5px;
        }

        .douyu-hero h1 .highlight {
            color: var(--douyu-orange);
        }

        .douyu-hero-sub {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 24px;
            max-width: 580px;
        }

        .douyu-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 32px;
        }

        .douyu-hero-countdown {
            display: flex;
            gap: 12px;
            align-items: center;
            padding: 14px 20px;
            background: rgba(20, 23, 28, 0.7);
            border-radius: 14px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(8px);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .douyu-countdown-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            font-weight: 500;
            margin-right: 8px;
        }

        .douyu-countdown-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 52px;
        }

        .douyu-countdown-value {
            font-size: 26px;
            font-weight: 700;
            color: var(--douyu-orange);
            line-height: 1.2;
        }

        .douyu-countdown-unit {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 4px;
        }

        .douyu-countdown-sep {
            font-size: 22px;
            color: rgba(255, 255, 255, 0.4);
            font-weight: 700;
        }

        .douyu-hero-preview {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .douyu-preview-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 18px;
            padding: 10px;
            backdrop-filter: blur(8px);
            max-width: 340px;
            width: 100%;
        }

        .douyu-preview-card img {
            border-radius: 12px;
            aspect-ratio: 16/9;
            object-fit: cover;
            width: 100%;
        }

        .douyu-preview-info {
            padding: 14px 10px 8px;
            color: #fff;
        }

        .douyu-preview-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 6px;
            color: #fff;
        }

        .douyu-preview-meta {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            gap: 14px;
        }

        @media (max-width: 991.98px) {
            .douyu-hero {
                min-height: auto;
                padding: 60px 16px;
            }

            .douyu-hero h1 {
                font-size: 32px;
            }

            .douyu-hero-content {
                max-width: 100%;
            }

            .douyu-hero-preview {
                margin-top: 32px;
                justify-content: flex-start;
            }
        }

        @media (max-width: 575.98px) {
            .douyu-hero {
                padding: 40px 8px 60px;
                min-height: 480px;
            }

            .douyu-hero h1 {
                font-size: 28px;
            }

            .douyu-hero-sub {
                font-size: 15px;
                line-height: 1.8;
            }

            .douyu-countdown-value {
                font-size: 22px;
            }
        }

        /* ===== BUTTONS ===== */
        .btn-douyu-primary {
            background: var(--douyu-orange);
            color: #fff;
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            display: inline-block;
            cursor: pointer;
        }

        .btn-douyu-primary:hover,
        .btn-douyu-primary:focus {
            background: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(255, 107, 26, 0.35);
            transform: translateY(-1px);
        }

        .btn-douyu-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 10px rgba(255, 107, 26, 0.25);
        }

        .btn-douyu-primary:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.3), 0 6px 18px rgba(255, 107, 26, 0.35);
        }

        .btn-douyu-outline {
            background: transparent;
            color: var(--douyu-orange);
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            display: inline-block;
            cursor: pointer;
        }

        .btn-douyu-outline:hover,
        .btn-douyu-outline:focus {
            background: var(--douyu-orange-light);
            color: var(--douyu-orange-dark);
            border-color: var(--douyu-orange);
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.2);
        }

        .btn-douyu-outline:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.25), 0 4px 14px rgba(255, 107, 26, 0.2);
        }

        .btn-douyu-white-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            display: inline-block;
            cursor: pointer;
        }

        .btn-douyu-white-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .btn-douyu-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-douyu-link {
            color: var(--douyu-orange);
            font-weight: 600;
            font-size: 14px;
            padding: 0;
            background: none;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--douyu-transition);
        }

        .btn-douyu-link:hover {
            color: var(--douyu-orange-dark);
        }

        /* ===== SECTION STYLES ===== */
        .douyu-section {
            padding: 72px 0;
        }

        @media (min-width: 992px) {
            .douyu-section {
                padding: 88px 0;
            }
        }

        @media (max-width: 575.98px) {
            .douyu-section {
                padding: 48px 0;
            }
        }

        .douyu-section-dark {
            background: var(--douyu-black);
            color: #fff;
        }

        .douyu-section-light {
            background: var(--douyu-white);
        }

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

        .douyu-section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            color: var(--douyu-black);
        }

        .douyu-section-dark .douyu-section-title {
            color: #fff;
        }

        .douyu-section-sub {
            font-size: 16px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 36px;
            max-width: 720px;
        }

        .douyu-section-dark .douyu-section-sub {
            color: rgba(255, 255, 255, 0.7);
        }

        .douyu-section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ===== METRICS ===== */
        .douyu-metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .douyu-metric-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--douyu-transition);
            box-shadow: var(--douyu-shadow);
        }

        .douyu-metric-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }

        .douyu-metric-value {
            font-size: 38px;
            font-weight: 700;
            color: var(--douyu-orange);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .douyu-metric-value .unit {
            font-size: 18px;
            font-weight: 600;
        }

        .douyu-metric-label {
            font-size: 14px;
            color: var(--douyu-gray);
            margin-bottom: 8px;
        }

        .douyu-metric-trend {
            font-size: 13px;
            font-weight: 600;
            color: var(--douyu-teal);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        @media (max-width: 991.98px) {
            .douyu-metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .douyu-metrics-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .douyu-metric-value {
                font-size: 30px;
            }
        }

        /* ===== SERVICES ===== */
        .douyu-services-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
        }

        .douyu-service-card-large {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
            box-shadow: var(--douyu-shadow);
            transition: all var(--douyu-transition);
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }

        .douyu-service-card-large:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }

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

        .douyu-service-card-large .card-body {
            padding: 24px 28px;
        }

        .douyu-service-card-large h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--douyu-black);
        }

        .douyu-service-card-large p {
            font-size: 15px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .douyu-service-cards-small {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .douyu-service-card-small {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 22px 20px;
            box-shadow: var(--douyu-shadow);
            transition: all var(--douyu-transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }

        .douyu-service-card-small:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }

        .douyu-service-card-small .icon-wrap {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            flex-shrink: 0;
        }

        .douyu-service-card-small h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--douyu-black);
        }

        .douyu-service-card-small p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .douyu-services-layout {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 575.98px) {
            .douyu-service-cards-small {
                grid-template-columns: 1fr;
            }
        }

        /* ===== DEEP CONTENT ===== */
        .douyu-deep-content {
            background: var(--douyu-white);
            border-radius: var(--douyu-radius);
            padding: 40px 36px;
            border: 1px solid var(--douyu-border);
            box-shadow: var(--douyu-shadow);
        }

        .douyu-deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--douyu-black);
        }

        .douyu-deep-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
            color: var(--douyu-black);
        }

        .douyu-deep-content p {
            font-size: 15px;
            color: #3A4048;
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .douyu-deep-content ul {
            padding-left: 22px;
            margin-bottom: 14px;
        }

        .douyu-deep-content li {
            font-size: 15px;
            color: #3A4048;
            line-height: 1.9;
            margin-bottom: 8px;
        }

        .douyu-deep-content blockquote {
            border-left: 4px solid var(--douyu-orange);
            background: var(--douyu-orange-light);
            padding: 16px 20px;
            border-radius: 0 10px 10px 0;
            margin: 20px 0;
            font-size: 15px;
            color: var(--douyu-black);
            line-height: 1.8;
        }

        @media (max-width: 575.98px) {
            .douyu-deep-content {
                padding: 24px 18px;
                border-radius: 10px;
            }
        }

        /* ===== COMPARISON TABLE ===== */
        .douyu-compare-table-wrap {
            overflow-x: auto;
            border-radius: var(--douyu-radius);
            border: 1px solid var(--douyu-border);
            box-shadow: var(--douyu-shadow);
            background: var(--douyu-white);
        }

        .douyu-compare-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 640px;
        }

        .douyu-compare-table th,
        .douyu-compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--douyu-border);
            font-size: 15px;
            line-height: 1.7;
        }

        .douyu-compare-table th {
            background: var(--douyu-black);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
        }

        .douyu-compare-table th:first-child {
            border-radius: 10px 0 0 0;
        }

        .douyu-compare-table th:last-child {
            border-radius: 0 10px 0 0;
        }

        .douyu-compare-table td:first-child {
            font-weight: 600;
            color: var(--douyu-black);
            background: var(--douyu-bg);
            white-space: nowrap;
        }

        .douyu-compare-table tr:last-child td {
            border-bottom: none;
        }

        .douyu-compare-table .highlight-col {
            color: var(--douyu-orange);
            font-weight: 600;
        }

        .douyu-compare-table .advantage {
            color: var(--douyu-teal);
            font-weight: 600;
        }

        /* ===== NEWS ===== */
        .douyu-news-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .douyu-news-item {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 22px 24px;
            box-shadow: var(--douyu-shadow);
            transition: all var(--douyu-transition);
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .douyu-news-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }

        .douyu-news-date {
            font-size: 13px;
            font-weight: 600;
            color: var(--douyu-orange);
            letter-spacing: 0.5px;
        }

        .douyu-news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--douyu-black);
            line-height: 1.5;
            transition: color var(--douyu-transition);
        }

        .douyu-news-item:hover .douyu-news-title {
            color: var(--douyu-orange);
        }

        .douyu-news-excerpt {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            flex-grow: 1;
        }

        @media (max-width: 767.98px) {
            .douyu-news-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== BRAND INTRO ===== */
        .douyu-brand-intro {
            background: var(--douyu-white);
            border-radius: 18px;
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 32px;
            align-items: center;
            border: 1px solid var(--douyu-border);
            box-shadow: var(--douyu-shadow);
        }

        .douyu-brand-intro img {
            border-radius: 14px;
            aspect-ratio: 4/3;
            object-fit: cover;
            width: 100%;
        }

        .douyu-brand-intro h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--douyu-black);
        }

        .douyu-brand-intro p {
            font-size: 15px;
            color: #3A4048;
            line-height: 1.9;
            margin-bottom: 12px;
        }

        @media (max-width: 767.98px) {
            .douyu-brand-intro {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
        }

        /* ===== COUNTDOWN / LIMIT ===== */
        .douyu-limit-banner {
            background: linear-gradient(135deg, var(--douyu-black) 0%, #2A3038 100%);
            border-radius: 18px;
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .douyu-limit-banner .limit-text h3 {
            color: #fff;
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .douyu-limit-banner .limit-text p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            margin-bottom: 0;
        }

        .douyu-limit-timer {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .douyu-limit-timer .time-box {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            padding: 10px 14px;
            text-align: center;
            min-width: 60px;
        }

        .douyu-limit-timer .time-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--douyu-orange);
            line-height: 1.2;
        }

        .douyu-limit-timer .time-unit {
            font-size: 11px;
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 575.98px) {
            .douyu-limit-banner {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== CAMPAIGN SECTION ===== */
        .douyu-campaign {
            background: linear-gradient(135deg, #1E232A 0%, #14171C 100%);
            border-radius: 18px;
            padding: 40px;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: center;
        }

        .douyu-campaign h3 {
            color: #fff;
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .douyu-campaign p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 18px;
        }

        .douyu-campaign .campaign-tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-bottom: 18px;
        }

        .douyu-campaign .campaign-tags span {
            background: rgba(255, 107, 26, 0.2);
            border: 1px solid rgba(255, 107, 26, 0.5);
            color: var(--douyu-orange);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
        }

        .douyu-campaign img {
            border-radius: 14px;
            aspect-ratio: 16/10;
            object-fit: cover;
            width: 100%;
        }

        @media (max-width: 767.98px) {
            .douyu-campaign {
                grid-template-columns: 1fr;
                padding: 24px 20px;
            }
        }

        /* ===== TIER COMPARISON ===== */
        .douyu-tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .douyu-tier-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 28px 24px;
            box-shadow: var(--douyu-shadow);
            transition: all var(--douyu-transition);
            text-align: center;
        }

        .douyu-tier-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
        }

        .douyu-tier-card.featured {
            border-color: var(--douyu-orange);
            border-width: 2px;
            background: var(--douyu-orange-light);
            position: relative;
        }

        .douyu-tier-card .tier-badge {
            display: inline-block;
            background: var(--douyu-orange);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .douyu-tier-card h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--douyu-black);
        }

        .douyu-tier-card .tier-price {
            font-size: 32px;
            font-weight: 700;
            color: var(--douyu-orange);
            margin-bottom: 16px;
        }

        .douyu-tier-card ul {
            list-style: none;
            padding: 0;
            margin: 0 0 18px;
            text-align: left;
        }

        .douyu-tier-card ul li {
            font-size: 14px;
            color: var(--douyu-gray);
            padding: 8px 0;
            border-bottom: 1px solid var(--douyu-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .douyu-tier-card ul li::before {
            content: '✓';
            color: var(--douyu-teal);
            font-weight: 700;
        }

        @media (max-width: 991.98px) {
            .douyu-tier-grid {
                grid-template-columns: 1fr;
                max-width: 420px;
                margin: 0 auto;
            }
        }

        /* ===== GUARANTEE ICONS ===== */
        .douyu-guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .douyu-guarantee-item {
            text-align: center;
            padding: 24px 16px;
        }

        .douyu-guarantee-item .g-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin: 0 auto 14px;
        }

        .douyu-guarantee-item h5 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--douyu-black);
        }

        .douyu-guarantee-item p {
            font-size: 13px;
            color: var(--douyu-gray);
            margin-bottom: 0;
            line-height: 1.7;
        }

        @media (max-width: 991.98px) {
            .douyu-guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575.98px) {
            .douyu-guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CHANGELOG ===== */
        .douyu-changelog {
            background: var(--douyu-white);
            border-radius: var(--douyu-radius);
            border: 1px solid var(--douyu-border);
            box-shadow: var(--douyu-shadow);
            padding: 32px 36px;
        }

        .douyu-changelog-item {
            display: flex;
            gap: 20px;
            padding: 16px 0;
            border-bottom: 1px solid var(--douyu-border);
        }

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

        .douyu-changelog-version {
            font-weight: 700;
            font-size: 14px;
            color: var(--douyu-orange);
            min-width: 80px;
            flex-shrink: 0;
        }

        .douyu-changelog-desc {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .douyu-faq-accordion .accordion-item {
            border: 1px solid var(--douyu-border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--douyu-white);
            box-shadow: 0 2px 8px rgba(20, 23, 28, 0.04);
        }

        .douyu-faq-accordion .accordion-button {
            background: var(--douyu-white);
            color: var(--douyu-black);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: 10px;
            transition: all var(--douyu-transition);
        }

        .douyu-faq-accordion .accordion-button:not(.collapsed) {
            background: #FFF6EE;
            color: var(--douyu-orange);
            box-shadow: none;
            border-left: 4px solid var(--douyu-orange);
            border-radius: 10px 10px 0 0;
        }

        .douyu-faq-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
        }

        .douyu-faq-accordion .accordion-button::after {
            filter: invert(50%) sepia(90%) saturate(2000%) hue-rotate(350deg);
        }

        .douyu-faq-accordion .accordion-body {
            background: #FFF6EE;
            font-size: 15px;
            color: #3A4048;
            line-height: 1.9;
            padding: 18px 22px 22px;
            border-left: 4px solid var(--douyu-orange);
        }

        /* ===== FORM ===== */
        .douyu-form-section {
            background: var(--douyu-black);
            border-radius: 18px;
            padding: 48px 44px;
            display: grid;
            grid-template-columns: 1fr 1.3fr;
            gap: 40px;
        }

        .douyu-form-section h3 {
            color: #fff;
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .douyu-form-section .form-intro {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .douyu-form-section .form-benefits {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .douyu-form-section .form-benefits li {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            padding: 8px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .douyu-form-section .form-benefits li::before {
            content: '✓';
            color: var(--douyu-teal);
            font-weight: 700;
            font-size: 16px;
        }

        .douyu-form-card {
            background: var(--douyu-white);
            border-radius: 14px;
            padding: 28px 26px;
        }

        .douyu-form-card label {
            font-size: 14px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 6px;
            display: block;
        }

        .douyu-form-card .form-control {
            background: var(--douyu-bg);
            border: 1px solid #D9DEE6;
            border-radius: 8px;
            padding: 12px 14px;
            font-size: 15px;
            color: var(--douyu-black);
            transition: all var(--douyu-transition);
            margin-bottom: 14px;
        }

        .douyu-form-card .form-control:focus {
            border-color: var(--douyu-orange);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
        }

        .douyu-form-card select.form-control {
            appearance: auto;
        }

        .douyu-form-card textarea.form-control {
            min-height: 100px;
            resize: vertical;
        }

        .douyu-form-card .privacy-hint {
            font-size: 13px;
            color: var(--douyu-gray-light);
            margin-top: 8px;
            text-align: center;
        }

        @media (max-width: 991.98px) {
            .douyu-form-section {
                grid-template-columns: 1fr;
                padding: 28px 22px;
                gap: 28px;
            }
        }

        /* ===== FOOTER ===== */
        .douyu-footer {
            background: var(--douyu-black);
            color: #fff;
            padding: 56px 0 32px;
        }

        .douyu-footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .douyu-footer-brand {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }

        .douyu-footer-brand span {
            color: var(--douyu-orange);
        }

        .douyu-footer-brand-desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .douyu-footer h5 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

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

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

        .douyu-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: color var(--douyu-transition);
        }

        .douyu-footer ul li a:hover {
            color: var(--douyu-orange);
        }

        .douyu-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .douyu-footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            transition: color var(--douyu-transition);
        }

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

        @media (max-width: 991.98px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 575.98px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .douyu-footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
        }

        /* ===== MISC ===== */
        .douyu-divider {
            height: 1px;
            background: var(--douyu-border);
            margin: 0;
            border: none;
        }

        .text-orange {
            color: var(--douyu-orange);
        }

        .text-teal {
            color: var(--douyu-teal);
        }

        .fw-700 {
            font-weight: 700;
        }

        .mb-0 {
            margin-bottom: 0 !important;
        }

        @media (max-width: 575.98px) {
            .douyu-section-title {
                font-size: 22px;
            }
        }

#series-nav a:hover {
                        border-color: #FF6B1A !important;
                        box-shadow: 0 8px 20px rgba(20,23,28,0.1);
                        transform: translateY(-2px);
                    }

/* roulang page: category3 */
:root {
            --douyu-black: #14171C;
            --douyu-dark: #1E232A;
            --douyu-orange: #FF6B1A;
            --douyu-orange-dark: #E85A00;
            --douyu-orange-light: #FFF0E5;
            --douyu-cyan: #00B8D9;
            --douyu-teal: #00C2A8;
            --douyu-bg: #F5F7FA;
            --douyu-gray: #6B7280;
            --douyu-gray-light: #9CA3AF;
            --douyu-border: #E6EAF0;
            --douyu-white: #FFFFFF;
            --douyu-radius: 14px;
            --douyu-radius-sm: 10px;
            --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
            --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
            --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --douyu-transition: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--douyu-font);
            background-color: var(--douyu-bg);
            color: var(--douyu-black);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--douyu-transition);
        }
        a:hover {
            color: var(--douyu-orange);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--douyu-font);
        }

        .douyu-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 16px;
            padding-right: 16px;
        }

        @media (min-width: 576px) {
            .douyu-container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (min-width: 768px) {
            .douyu-container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== HEADER / NAV ===== */
        .douyu-header {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
        }
        .douyu-header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .douyu-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--douyu-black);
            white-space: nowrap;
        }
        .douyu-logo:hover {
            color: var(--douyu-orange);
        }
        .douyu-logo-icon {
            width: 36px;
            height: 36px;
            background: var(--douyu-orange);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .douyu-nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .douyu-nav-desktop>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: all var(--douyu-transition);
        }
        .douyu-nav-desktop>li>a:hover,
        .douyu-nav-desktop>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        .douyu-nav-desktop>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }
        .douyu-nav-desktop>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--douyu-orange);
            border-radius: 3px;
        }
        .douyu-nav-cta {
            background: var(--douyu-orange);
            color: #fff !important;
            border-radius: 10px;
            padding: 10px 20px !important;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            border: 2px solid var(--douyu-orange);
            white-space: nowrap;
            margin-left: 8px;
        }
        .douyu-nav-cta:hover {
            background: var(--douyu-orange-dark) !important;
            border-color: var(--douyu-orange-dark);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }
        .douyu-nav-toggle {
            display: none;
            background: var(--douyu-black);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 20px;
            cursor: pointer;
            transition: background var(--douyu-transition);
            align-items: center;
            justify-content: center;
        }
        .douyu-nav-toggle:hover {
            background: var(--douyu-orange);
        }
        .douyu-mobile-menu {
            display: none;
            background: var(--douyu-white);
            border-top: 1px solid var(--douyu-border);
            padding: 12px 16px 20px;
            list-style: none;
            margin: 0;
        }
        .douyu-mobile-menu>li>a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            transition: all var(--douyu-transition);
        }
        .douyu-mobile-menu>li>a:hover,
        .douyu-mobile-menu>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }

        @media (max-width: 991.98px) {
            .douyu-nav-desktop {
                display: none;
            }
            .douyu-nav-toggle {
                display: flex;
            }
            .douyu-mobile-menu.show {
                display: block;
            }
        }

        /* ===== BREADCRUMB ===== */
        .douyu-breadcrumb {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            padding: 14px 0;
            font-size: 14px;
            color: var(--douyu-gray);
        }
        .douyu-breadcrumb .breadcrumb {
            margin: 0;
            padding: 0;
            background: transparent;
        }
        .douyu-breadcrumb .breadcrumb-item a {
            color: var(--douyu-gray);
            transition: color var(--douyu-transition);
        }
        .douyu-breadcrumb .breadcrumb-item a:hover {
            color: var(--douyu-orange);
        }
        .douyu-breadcrumb .breadcrumb-item.active {
            color: var(--douyu-orange);
            font-weight: 500;
        }
        .breadcrumb-item+.breadcrumb-item::before {
            color: var(--douyu-gray-light);
            content: "›";
            font-size: 16px;
            line-height: 1;
        }

        /* ===== HERO BANNER ===== */
        .douyu-category-hero {
            position: relative;
            background-image: linear-gradient(180deg, rgba(20, 23, 28, 0.82) 0%, rgba(20, 23, 28, 0.62) 55%, rgba(20, 23, 28, 0.82) 100%), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 88px 0 72px;
            color: #fff;
            overflow: hidden;
        }
        .douyu-category-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--douyu-orange), var(--douyu-cyan), var(--douyu-teal));
        }
        .douyu-category-hero-content {
            position: relative;
            z-index: 2;
        }
        .douyu-category-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 18px;
            max-width: 720px;
        }
        .douyu-category-hero p {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .douyu-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .douyu-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--douyu-orange);
            color: #fff;
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 13px 28px;
            font-size: 16px;
            font-weight: 600;
            transition: all var(--douyu-transition);
            cursor: pointer;
        }
        .douyu-btn-primary:hover,
        .douyu-btn-primary:focus {
            background: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
            color: #fff;
            box-shadow: 0 6px 20px rgba(255, 107, 26, 0.4);
            transform: translateY(-2px);
        }
        .douyu-btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.6);
            border-radius: 10px;
            padding: 13px 28px;
            font-size: 16px;
            font-weight: 600;
            transition: all var(--douyu-transition);
            cursor: pointer;
        }
        .douyu-btn-outline-light:hover,
        .douyu-btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== SECTION COMMON ===== */
        .douyu-section {
            padding: 72px 0;
        }
        .douyu-section-alt {
            background: var(--douyu-white);
        }
        .douyu-section-dark {
            background: var(--douyu-black);
            color: #fff;
        }
        .douyu-section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
        }
        .douyu-section-subtitle {
            font-size: 16px;
            color: var(--douyu-gray);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 40px;
        }
        .douyu-section-dark .douyu-section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== METRICS ===== */
        .douyu-metric-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--douyu-transition);
            height: 100%;
        }
        .douyu-metric-card:hover {
            box-shadow: var(--douyu-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--douyu-orange);
        }
        .douyu-metric-value {
            font-size: 38px;
            font-weight: 700;
            color: var(--douyu-orange);
            line-height: 1.2;
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        .douyu-metric-label {
            font-size: 14px;
            color: var(--douyu-gray);
            font-weight: 500;
        }
        .douyu-metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 600;
            color: var(--douyu-teal);
            margin-top: 8px;
        }
        .douyu-metric-trend.orange {
            color: var(--douyu-orange);
        }

        /* ===== SERVICE CARDS ===== */
        .douyu-service-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 28px;
            transition: all var(--douyu-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .douyu-service-card:hover {
            box-shadow: var(--douyu-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--douyu-orange);
        }
        .douyu-service-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
            flex-shrink: 0;
        }
        .douyu-service-icon.cyan {
            background: rgba(0, 184, 217, 0.12);
            color: var(--douyu-cyan);
        }
        .douyu-service-icon.teal {
            background: rgba(0, 194, 168, 0.12);
            color: var(--douyu-teal);
        }
        .douyu-service-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            line-height: 1.45;
        }
        .douyu-service-card p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .douyu-service-image {
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 18px;
            aspect-ratio: 16/9;
        }
        .douyu-service-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .douyu-service-card:hover .douyu-service-image img {
            transform: scale(1.05);
        }

        /* ===== DEEP CONTENT ===== */
        .douyu-deep-content {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 44px 40px;
        }
        .douyu-deep-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 18px;
            line-height: 1.45;
        }
        .douyu-deep-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .douyu-deep-content p {
            font-size: 16px;
            line-height: 1.9;
            color: #3D434D;
            margin-bottom: 16px;
        }
        .douyu-deep-content ul,
        .douyu-deep-content ol {
            padding-left: 20px;
            margin-bottom: 16px;
        }
        .douyu-deep-content li {
            font-size: 15px;
            line-height: 1.9;
            color: #3D434D;
            margin-bottom: 8px;
        }
        .douyu-deep-content blockquote {
            border-left: 4px solid var(--douyu-orange);
            background: var(--douyu-orange-light);
            padding: 20px 24px;
            border-radius: 0 10px 10px 0;
            font-size: 15px;
            line-height: 1.9;
            color: #3D434D;
            margin: 20px 0;
        }
        .douyu-deep-image {
            border-radius: 10px;
            overflow: hidden;
            margin: 24px 0;
            aspect-ratio: 21/9;
        }
        .douyu-deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ===== TIMELINE / PATH ===== */
        .douyu-path-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 40px;
        }
        .douyu-path-step {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 28px 24px;
            text-align: center;
            position: relative;
            transition: all var(--douyu-transition);
        }
        .douyu-path-step:hover {
            box-shadow: var(--douyu-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--douyu-orange);
        }
        .douyu-path-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--douyu-orange);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .douyu-path-step h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .douyu-path-step p {
            font-size: 13px;
            color: var(--douyu-gray);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 991.98px) {
            .douyu-path-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575.98px) {
            .douyu-path-steps {
                grid-template-columns: 1fr;
            }
        }

        /* ===== COMPARISON TABLE ===== */
        .douyu-compare-table {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
        }
        .douyu-compare-table table {
            margin-bottom: 0;
        }
        .douyu-compare-table th {
            background: var(--douyu-black);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 16px 20px;
            border: none;
        }
        .douyu-compare-table th.highlight {
            background: var(--douyu-orange);
        }
        .douyu-compare-table td {
            padding: 16px 20px;
            font-size: 14px;
            line-height: 1.7;
            border-bottom: 1px solid var(--douyu-border);
            vertical-align: middle;
        }
        .douyu-compare-table tr:last-child td {
            border-bottom: none;
        }
        .douyu-compare-table .positive {
            color: var(--douyu-teal);
            font-weight: 600;
        }
        .douyu-compare-table .negative {
            color: var(--douyu-gray-light);
        }

        /* ===== CARD LIST ===== */
        .douyu-story-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
            transition: all var(--douyu-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .douyu-story-card:hover {
            box-shadow: var(--douyu-shadow-hover);
            transform: translateY(-4px);
            border-color: var(--douyu-orange);
        }
        .douyu-story-card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .douyu-story-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .douyu-story-card:hover .douyu-story-card-image img {
            transform: scale(1.05);
        }
        .douyu-story-card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .douyu-story-card-tag {
            display: inline-block;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .douyu-story-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
        }
        .douyu-story-card p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 16px;
            flex: 1;
        }
        .douyu-story-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--douyu-orange);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--douyu-transition);
        }
        .douyu-story-link:hover {
            gap: 10px;
            color: var(--douyu-orange-dark);
        }

        /* ===== FAQ ===== */
        .douyu-faq-item {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--douyu-transition);
        }
        .douyu-faq-item.open {
            border-left: 4px solid var(--douyu-orange);
            background: #FFF6EE;
        }
        .douyu-faq-question {
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            color: var(--douyu-black);
            transition: color var(--douyu-transition);
            border: none;
            background: transparent;
            width: 100%;
            text-align: left;
        }
        .douyu-faq-question:hover {
            color: var(--douyu-orange);
        }
        .douyu-faq-question .fa-chevron-down {
            font-size: 14px;
            color: var(--douyu-gray-light);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .douyu-faq-item.open .douyu-faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--douyu-orange);
        }
        .douyu-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .douyu-faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
        }

        /* ===== CTA FORM ===== */
        .douyu-cta-form {
            background: var(--douyu-black);
            border-radius: var(--douyu-radius);
            padding: 48px 44px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .douyu-cta-form::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--douyu-orange), var(--douyu-cyan));
        }
        .douyu-cta-form h2 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .douyu-cta-form .douyu-cta-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 500px;
        }
        .douyu-form-control {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 10px;
            padding: 13px 18px;
            font-size: 15px;
            color: #fff;
            width: 100%;
            transition: all var(--douyu-transition);
        }
        .douyu-form-control::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .douyu-form-control:focus {
            outline: none;
            border-color: var(--douyu-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }
        .douyu-form-control option {
            color: var(--douyu-black);
            background: #fff;
        }
        .douyu-form-label {
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 6px;
            display: block;
            color: rgba(255, 255, 255, 0.85);
        }
        .douyu-form-group {
            margin-bottom: 18px;
        }
        .douyu-privacy-note {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 14px;
        }

        /* ===== FOOTER ===== */
        .douyu-footer {
            background: var(--douyu-black);
            color: #fff;
            padding: 64px 0 24px;
        }
        .douyu-footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .douyu-footer-brand {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .douyu-footer-brand-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.8;
            max-width: 340px;
        }
        .douyu-footer h5 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: #fff;
        }
        .douyu-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .douyu-footer ul li {
            margin-bottom: 10px;
        }
        .douyu-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--douyu-transition);
        }
        .douyu-footer ul li a:hover {
            color: var(--douyu-orange);
        }
        .douyu-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            justify-content: space-between;
        }
        .douyu-footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--douyu-transition);
        }
        .douyu-footer-bottom a:hover {
            color: var(--douyu-orange);
        }

        @media (max-width: 991.98px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr;
            }
            .douyu-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 767.98px) {
            .douyu-section {
                padding: 48px 0;
            }
            .douyu-category-hero {
                padding: 56px 0 48px;
            }
            .douyu-category-hero h1 {
                font-size: 28px;
            }
            .douyu-category-hero p {
                font-size: 15px;
            }
            .douyu-section-title {
                font-size: 24px;
            }
            .douyu-deep-content {
                padding: 28px 20px;
            }
            .douyu-cta-form {
                padding: 32px 20px;
            }
        }

/* roulang page: category2 */
:root {
            --douyu-black: #14171C;
            --douyu-dark: #1E232A;
            --douyu-orange: #FF6B1A;
            --douyu-orange-dark: #E85A00;
            --douyu-orange-light: #FFF0E5;
            --douyu-cyan: #00B8D9;
            --douyu-teal: #00C2A8;
            --douyu-bg: #F5F7FA;
            --douyu-gray: #6B7280;
            --douyu-gray-light: #9CA3AF;
            --douyu-border: #E6EAF0;
            --douyu-white: #FFFFFF;
            --douyu-radius: 14px;
            --douyu-radius-sm: 10px;
            --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
            --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
            --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --douyu-transition: 0.2s ease;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--douyu-font);
            background-color: var(--douyu-bg);
            color: var(--douyu-black);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--douyu-transition);
        }
        a:hover {
            color: var(--douyu-orange);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--douyu-font);
        }
        .container {
            max-width: 1200px;
        }
        .douyu-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        @media (max-width: 767.98px) {
            .douyu-container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        /* ===== HEADER / NAV ===== */
        .douyu-header {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
        }
        .douyu-header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .douyu-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--douyu-black);
            white-space: nowrap;
        }
        .douyu-logo:hover {
            color: var(--douyu-orange);
        }
        .douyu-logo-icon {
            width: 36px;
            height: 36px;
            background: var(--douyu-orange);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .douyu-nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .douyu-nav-desktop>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: all var(--douyu-transition);
        }
        .douyu-nav-desktop>li>a:hover,
        .douyu-nav-desktop>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        .douyu-nav-desktop>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }
        .douyu-nav-desktop>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--douyu-orange);
            border-radius: 3px;
        }
        .douyu-nav-cta {
            background: var(--douyu-orange);
            color: #fff !important;
            border-radius: 10px;
            padding: 10px 20px !important;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            border: 2px solid var(--douyu-orange);
            white-space: nowrap;
            margin-left: 8px;
        }
        .douyu-nav-cta:hover {
            background: var(--douyu-orange-dark) !important;
            border-color: var(--douyu-orange-dark);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }
        .douyu-nav-toggle {
            display: none;
            background: var(--douyu-black);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 20px;
            cursor: pointer;
            transition: background var(--douyu-transition);
            align-items: center;
            justify-content: center;
        }
        .douyu-nav-toggle:hover {
            background: var(--douyu-orange);
        }
        .douyu-mobile-menu {
            display: none;
            background: var(--douyu-white);
            border-top: 1px solid var(--douyu-border);
            padding: 12px 16px 20px;
            list-style: none;
            margin: 0;
        }
        .douyu-mobile-menu>li>a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            transition: all var(--douyu-transition);
        }
        .douyu-mobile-menu>li>a:hover,
        .douyu-mobile-menu>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        @media (max-width: 991.98px) {
            .douyu-nav-desktop {
                display: none;
            }
            .douyu-nav-toggle {
                display: flex;
            }
            .douyu-mobile-menu.open {
                display: block;
            }
        }
        /* ===== BREADCRUMB ===== */
        .douyu-breadcrumb-section {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            padding: 16px 0;
        }
        .douyu-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--douyu-gray);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .douyu-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .douyu-breadcrumb li+li::before {
            content: '/';
            color: var(--douyu-gray-light);
            font-size: 12px;
            margin-right: 4px;
        }
        .douyu-breadcrumb a {
            color: var(--douyu-gray);
        }
        .douyu-breadcrumb a:hover {
            color: var(--douyu-orange);
        }
        .douyu-breadcrumb .current {
            color: var(--douyu-orange);
            font-weight: 600;
        }
        /* ===== CATEGORY HERO ===== */
        .douyu-category-hero {
            background: var(--douyu-white);
            padding: 56px 0 48px;
            border-bottom: 1px solid var(--douyu-border);
        }
        .douyu-category-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .douyu-category-hero-content h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--douyu-black);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .douyu-category-hero-content .douyu-cat-desc {
            font-size: 16px;
            color: var(--douyu-gray);
            line-height: 1.9;
            margin-bottom: 20px;
        }
        .douyu-category-hero-img {
            border-radius: var(--douyu-radius);
            overflow: hidden;
            box-shadow: var(--douyu-shadow-hover);
        }
        .douyu-category-hero-img img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            border-radius: var(--douyu-radius);
        }
        @media (max-width: 991.98px) {
            .douyu-category-hero-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .douyu-category-hero-content h1 {
                font-size: 28px;
            }
            .douyu-category-hero-img img {
                height: 240px;
            }
        }
        /* ===== SECTION COMMON ===== */
        .douyu-section {
            padding: 64px 0;
        }
        .douyu-section-title {
            font-size: 28px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .douyu-section-subtitle {
            font-size: 16px;
            color: var(--douyu-gray);
            margin-bottom: 32px;
            line-height: 1.8;
            max-width: 800px;
        }
        .douyu-text-highlight {
            color: var(--douyu-orange);
            font-weight: 600;
        }
        /* ===== DEEP CONTENT ===== */
        .douyu-deep-content {
            background: var(--douyu-bg);
        }
        .douyu-deep-content-block {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 40px;
            box-shadow: var(--douyu-shadow);
        }
        .douyu-deep-content-block h2 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--douyu-black);
        }
        .douyu-deep-content-block h3 {
            font-size: 18px;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: var(--douyu-black);
        }
        .douyu-deep-content-block p {
            color: var(--douyu-gray);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .douyu-deep-content-block ul {
            padding-left: 20px;
            color: var(--douyu-gray);
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .douyu-deep-content-block ul li {
            margin-bottom: 8px;
        }
        /* ===== SERVICE CARDS ===== */
        .douyu-service-cards {
            background: var(--douyu-white);
        }
        .douyu-card-grid-asym {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 24px;
        }
        .douyu-card-asym {
            background: var(--douyu-bg);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
            transition: all var(--douyu-transition);
            box-shadow: var(--douyu-shadow);
            display: flex;
            flex-direction: column;
        }
        .douyu-card-asym:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }
        .douyu-card-asym-img {
            height: 180px;
            overflow: hidden;
        }
        .douyu-card-asym-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .douyu-card-asym:hover .douyu-card-asym-img img {
            transform: scale(1.05);
        }
        .douyu-card-asym-body {
            padding: 20px 24px;
            flex-grow: 1;
        }
        .douyu-card-asym-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 8px;
        }
        .douyu-card-asym-body p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .douyu-card-asym .douyu-card-tag {
            display: inline-block;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 20px;
            margin-bottom: 8px;
        }
        @media (max-width: 991.98px) {
            .douyu-card-grid-asym {
                grid-template-columns: 1fr 1fr;
            }
            .douyu-card-asym:first-child {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 575.98px) {
            .douyu-card-grid-asym {
                grid-template-columns: 1fr;
            }
            .douyu-card-asym:first-child {
                grid-column: auto;
            }
        }
        /* ===== CONTENT LIST ===== */
        .douyu-content-list {
            background: var(--douyu-bg);
        }
        .douyu-content-list-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .douyu-list-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
            transition: all var(--douyu-transition);
            box-shadow: var(--douyu-shadow);
            display: flex;
            flex-direction: column;
        }
        .douyu-list-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }
        .douyu-list-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .douyu-list-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .douyu-list-card:hover .douyu-list-card-img img {
            transform: scale(1.05);
        }
        .douyu-list-card-img .douyu-card-date-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--douyu-orange);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            z-index: 2;
        }
        .douyu-list-card-body {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .douyu-list-card-body .douyu-card-label {
            font-size: 12px;
            color: var(--douyu-gray-light);
            margin-bottom: 8px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .douyu-list-card-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .douyu-list-card-body p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 16px;
            flex-grow: 1;
        }
        .douyu-read-more {
            color: var(--douyu-orange);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--douyu-transition);
        }
        .douyu-read-more:hover {
            color: var(--douyu-orange-dark);
            gap: 10px;
        }
        @media (max-width: 767.98px) {
            .douyu-content-list-grid {
                grid-template-columns: 1fr;
            }
            .douyu-list-card-img {
                height: 160px;
            }
        }
        /* ===== PAGINATION ===== */
        .douyu-pagination-section {
            padding: 16px 0 48px;
            background: var(--douyu-bg);
        }
        .douyu-pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .douyu-pagination li a,
        .douyu-pagination li span {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border: 1px solid var(--douyu-border);
            border-radius: 8px;
            background: var(--douyu-white);
            color: var(--douyu-gray);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--douyu-transition);
        }
        .douyu-pagination li a:hover {
            border-color: var(--douyu-orange);
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        .douyu-pagination li .current {
            background: var(--douyu-orange);
            color: #fff;
            border-color: var(--douyu-orange);
            font-weight: 600;
        }
        .douyu-pagination li .disabled {
            color: var(--douyu-gray-light);
            background: var(--douyu-bg);
            cursor: not-allowed;
        }
        /* ===== DATA METRICS ===== */
        .douyu-metrics-section {
            background: var(--douyu-black);
            padding: 64px 0;
        }
        .douyu-metrics-section .douyu-section-title {
            color: #fff;
        }
        .douyu-metrics-section .douyu-section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        .douyu-metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .douyu-metric-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--douyu-radius);
            padding: 28px 24px;
            text-align: left;
            transition: all var(--douyu-transition);
        }
        .douyu-metric-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 107, 26, 0.4);
        }
        .douyu-metric-value {
            font-size: 36px;
            font-weight: 700;
            color: var(--douyu-orange);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .douyu-metric-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 8px;
        }
        .douyu-metric-trend {
            font-size: 13px;
            font-weight: 600;
            color: var(--douyu-cyan);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .douyu-metric-trend.negative {
            color: #FF6B6B;
        }
        @media (max-width: 991.98px) {
            .douyu-metrics-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .douyu-metrics-grid {
                grid-template-columns: 1fr;
            }
            .douyu-metric-value {
                font-size: 28px;
            }
        }
        /* ===== PROCESS ===== */
        .douyu-process-section {
            background: var(--douyu-white);
        }
        .douyu-process-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .douyu-process-step {
            text-align: left;
        }
        .douyu-process-step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--douyu-orange);
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.3);
        }
        .douyu-process-step h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 8px;
        }
        .douyu-process-step p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.7;
            margin-bottom: 0;
        }
        @media (max-width: 991.98px) {
            .douyu-process-timeline {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 575.98px) {
            .douyu-process-timeline {
                grid-template-columns: 1fr;
            }
        }
        /* ===== FAQ ===== */
        .douyu-faq-section {
            background: var(--douyu-bg);
        }
        .douyu-faq-list {
            max-width: 900px;
            margin: 0 auto;
        }
        .douyu-accordion-item {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--douyu-transition);
            box-shadow: 0 2px 8px rgba(20, 23, 28, 0.03);
        }
        .douyu-accordion-item.open {
            border-left: 4px solid var(--douyu-orange);
            background: #FFF6EE;
            box-shadow: var(--douyu-shadow);
        }
        .douyu-accordion-trigger {
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--douyu-black);
            text-align: left;
            transition: all var(--douyu-transition);
        }
        .douyu-accordion-trigger:hover {
            color: var(--douyu-orange);
        }
        .douyu-accordion-trigger .douyu-faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--douyu-bg);
            border-radius: 50%;
            font-size: 14px;
            color: var(--douyu-gray);
            transition: transform var(--douyu-transition);
        }
        .douyu-accordion-item.open .douyu-faq-icon {
            transform: rotate(45deg);
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        .douyu-accordion-panel {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .douyu-accordion-panel-inner {
            padding: 0 24px 24px;
            font-size: 15px;
            color: var(--douyu-gray);
            line-height: 1.9;
        }
        /* ===== CTA FORM ===== */
        .douyu-cta-section {
            background: var(--douyu-black);
            padding: 64px 0;
        }
        .douyu-cta-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }
        .douyu-cta-content h2 {
            color: #fff;
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .douyu-cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .douyu-cta-benefits {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .douyu-cta-benefits li {
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            padding: 10px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .douyu-cta-benefits li i {
            color: var(--douyu-orange);
            font-size: 16px;
        }
        .douyu-cta-form-wrap {
            background: var(--douyu-white);
            border-radius: var(--douyu-radius);
            padding: 36px;
            box-shadow: var(--douyu-shadow-hover);
        }
        .douyu-cta-form-wrap h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 20px;
        }
        .douyu-form-group {
            margin-bottom: 18px;
        }
        .douyu-form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--douyu-black);
            margin-bottom: 6px;
            display: block;
        }
        .douyu-form-group input,
        .douyu-form-group select,
        .douyu-form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #D9DEE6;
            border-radius: 8px;
            background: #F5F7FA;
            font-size: 15px;
            color: var(--douyu-black);
            transition: all var(--douyu-transition);
            outline: none;
        }
        .douyu-form-group input:focus,
        .douyu-form-group select:focus,
        .douyu-form-group textarea:focus {
            border-color: var(--douyu-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
            background: #fff;
        }
        .douyu-form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .douyu-btn-primary {
            background: var(--douyu-orange);
            color: #fff;
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 28px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--douyu-transition);
            width: 100%;
        }
        .douyu-btn-primary:hover {
            background: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }
        .douyu-btn-primary:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
        }
        .douyu-privacy-note {
            font-size: 13px;
            color: var(--douyu-gray-light);
            text-align: center;
            margin-top: 12px;
        }
        @media (max-width: 991.98px) {
            .douyu-cta-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        /* ===== FOOTER ===== */
        .douyu-footer {
            background: var(--douyu-black);
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 32px;
            font-size: 14px;
        }
        .douyu-footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .douyu-footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .douyu-footer-brand-desc {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .douyu-footer h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .douyu-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .douyu-footer ul li {
            margin-bottom: 10px;
        }
        .douyu-footer ul li a {
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--douyu-transition);
        }
        .douyu-footer ul li a:hover {
            color: var(--douyu-orange);
        }
        .douyu-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }
        .douyu-footer-bottom a {
            color: rgba(255, 255, 255, 0.65);
        }
        .douyu-footer-bottom a:hover {
            color: var(--douyu-orange);
        }
        @media (max-width: 991.98px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 575.98px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .douyu-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --douyu-black: #14171C;
            --douyu-dark: #1E232A;
            --douyu-orange: #FF6B1A;
            --douyu-orange-dark: #E85A00;
            --douyu-orange-light: #FFF0E5;
            --douyu-cyan: #00B8D9;
            --douyu-teal: #00C2A8;
            --douyu-bg: #F5F7FA;
            --douyu-gray: #6B7280;
            --douyu-gray-light: #9CA3AF;
            --douyu-border: #E6EAF0;
            --douyu-white: #FFFFFF;
            --douyu-radius: 14px;
            --douyu-radius-sm: 10px;
            --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
            --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
            --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --douyu-transition: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--douyu-font);
            background-color: var(--douyu-bg);
            color: var(--douyu-black);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--douyu-transition);
        }

        a:hover {
            color: var(--douyu-orange);
            text-decoration: none;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--douyu-font);
        }

        .container {
            max-width: 1200px;
        }

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

        @media (min-width: 768px) {
            .douyu-container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* ===== HEADER / NAV ===== */
        .douyu-header {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
        }

        .douyu-header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }

        .douyu-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--douyu-black);
            white-space: nowrap;
        }

        .douyu-logo:hover {
            color: var(--douyu-orange);
        }

        .douyu-logo-icon {
            width: 36px;
            height: 36px;
            background: var(--douyu-orange);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }

        .douyu-nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .douyu-nav-desktop>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: all var(--douyu-transition);
        }

        .douyu-nav-desktop>li>a:hover,
        .douyu-nav-desktop>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }

        .douyu-nav-desktop>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }

        .douyu-nav-desktop>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--douyu-orange);
            border-radius: 3px;
        }

        .douyu-nav-cta {
            background: var(--douyu-orange);
            color: #fff !important;
            border-radius: 10px;
            padding: 10px 20px !important;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            border: 2px solid var(--douyu-orange);
            white-space: nowrap;
            margin-left: 8px;
        }

        .douyu-nav-cta:hover {
            background: var(--douyu-orange-dark) !important;
            border-color: var(--douyu-orange-dark);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }

        .douyu-nav-toggle {
            display: none;
            background: var(--douyu-black);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 20px;
            cursor: pointer;
            transition: background var(--douyu-transition);
            align-items: center;
            justify-content: center;
        }

        .douyu-nav-toggle:hover {
            background: var(--douyu-orange);
        }

        .douyu-mobile-menu {
            display: none;
            background: var(--douyu-white);
            border-top: 1px solid var(--douyu-border);
            padding: 12px 16px 20px;
            list-style: none;
            margin: 0;
        }

        .douyu-mobile-menu>li>a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            transition: all var(--douyu-transition);
        }

        .douyu-mobile-menu>li>a:hover,
        .douyu-mobile-menu>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }

        .douyu-mobile-menu>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }

        .douyu-mobile-menu>li>a.douyu-nav-cta {
            background: var(--douyu-orange);
            color: #fff !important;
            text-align: center;
            margin-top: 8px;
            border: 2px solid var(--douyu-orange);
        }

        .douyu-mobile-menu>li>a.douyu-nav-cta:hover {
            background: var(--douyu-orange-dark) !important;
            border-color: var(--douyu-orange-dark);
        }

        @media (max-width: 991px) {
            .douyu-nav-desktop {
                display: none;
            }
            .douyu-nav-toggle {
                display: flex;
            }
            .douyu-mobile-menu.show {
                display: block;
            }
        }

        /* ===== BREADCRUMB ===== */
        .douyu-breadcrumb {
            padding: 18px 0 0;
            margin-bottom: 0;
            font-size: 14px;
            color: var(--douyu-gray);
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4px;
        }

        .douyu-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .douyu-breadcrumb li:not(:last-child)::after {
            content: '/';
            margin: 0 6px;
            color: var(--douyu-gray-light);
        }

        .douyu-breadcrumb a {
            color: var(--douyu-gray);
        }

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

        .douyu-breadcrumb li:last-child {
            color: var(--douyu-black);
            font-weight: 500;
        }

        /* ===== CATEGORY HERO ===== */
        .douyu-cat-hero {
            position: relative;
            border-radius: var(--douyu-radius);
            overflow: hidden;
            background: var(--douyu-dark);
            color: #fff;
            margin: 20px 0 32px;
            min-height: 380px;
            display: flex;
            align-items: flex-end;
        }

        .douyu-cat-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .douyu-cat-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(20, 23, 28, 0.45) 0%, rgba(20, 23, 28, 0.85) 70%, rgba(20, 23, 28, 0.95) 100%);
            z-index: 1;
        }

        .douyu-cat-hero-content {
            position: relative;
            z-index: 2;
            padding: 40px 32px 36px;
            width: 100%;
        }

        .douyu-cat-hero-content h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
            color: #fff;
        }

        .douyu-cat-hero-content p {
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.82);
            max-width: 820px;
            margin-bottom: 22px;
        }

        .douyu-cat-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

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

        .douyu-cat-hero-meta i {
            color: var(--douyu-orange);
        }

        /* ===== STATS STRIP ===== */
        .douyu-stat-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }

        .douyu-stat-box {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 22px 20px;
            text-align: center;
            box-shadow: var(--douyu-shadow);
        }

        .douyu-stat-number {
            font-size: 30px;
            font-weight: 700;
            color: var(--douyu-orange);
            line-height: 1.3;
        }

        .douyu-stat-label {
            font-size: 13px;
            color: var(--douyu-gray);
            margin-top: 4px;
        }

        @media (max-width: 991px) {
            .douyu-stat-strip {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .douyu-stat-strip {
                grid-template-columns: 1fr;
            }
        }

        /* ===== SECTION COMMON ===== */
        .douyu-section {
            padding: 48px 0;
        }

        .douyu-section-title {
            font-size: 26px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 10px;
            color: var(--douyu-black);
        }

        .douyu-section-subtitle {
            font-size: 15px;
            color: var(--douyu-gray);
            margin-bottom: 28px;
            max-width: 720px;
        }

        .douyu-section-tag {
            display: inline-block;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        /* ===== GAME CATEGORY CARDS ===== */
        .douyu-game-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .douyu-game-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
            box-shadow: var(--douyu-shadow);
            transition: all var(--douyu-transition);
            display: flex;
            flex-direction: column;
        }

        .douyu-game-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }

        .douyu-game-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .douyu-game-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .douyu-game-card:hover .douyu-game-card-img img {
            transform: scale(1.05);
        }

        .douyu-game-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(20, 23, 28, 0.8);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 6px;
            backdrop-filter: blur(4px);
        }

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

        .douyu-game-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .douyu-game-card-body p {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 14px;
            flex: 1;
        }

        .douyu-game-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--douyu-gray-light);
            padding-top: 12px;
            border-top: 1px solid var(--douyu-border);
        }

        .douyu-game-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .douyu-btn-link {
            color: var(--douyu-orange);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--douyu-transition);
        }

        .douyu-btn-link:hover {
            color: var(--douyu-orange-dark);
            gap: 8px;
        }

        @media (max-width: 991px) {
            .douyu-game-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .douyu-game-grid {
                grid-template-columns: 1fr;
            }
            .douyu-game-card-img {
                height: 160px;
            }
        }

        /* ===== DEEP CONTENT ===== */
        .douyu-deep-block {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 36px 32px;
            box-shadow: var(--douyu-shadow);
        }

        .douyu-deep-block h2 {
            font-size: 24px;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 18px;
            color: var(--douyu-black);
        }

        .douyu-deep-block h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.5;
            margin: 22px 0 10px;
            color: var(--douyu-black);
        }

        .douyu-deep-block p {
            font-size: 15px;
            line-height: 1.95;
            color: #3A4149;
            margin-bottom: 14px;
        }

        .douyu-deep-block ul {
            list-style: none;
            padding: 0;
            margin: 12px 0;
        }

        .douyu-deep-block ul li {
            padding: 6px 0 6px 28px;
            position: relative;
            font-size: 15px;
            color: #3A4149;
            line-height: 1.8;
        }

        .douyu-deep-block ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 10px;
            color: var(--douyu-teal);
            font-size: 14px;
        }

        .douyu-deep-block blockquote {
            background: var(--douyu-orange-light);
            border-left: 4px solid var(--douyu-orange);
            padding: 16px 20px;
            border-radius: 0 var(--douyu-radius-sm) var(--douyu-radius-sm) 0;
            margin: 16px 0;
            font-size: 15px;
            color: #2A3038;
            line-height: 1.9;
        }

        /* ===== STREAMER RECOMMENDATION ===== */
        .douyu-streamer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .douyu-streamer-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            overflow: hidden;
            box-shadow: var(--douyu-shadow);
            transition: all var(--douyu-transition);
            text-align: center;
        }

        .douyu-streamer-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }

        .douyu-streamer-card-img {
            height: 120px;
            overflow: hidden;
        }

        .douyu-streamer-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .douyu-streamer-card-body {
            padding: 16px 14px 18px;
        }

        .douyu-streamer-card-body h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .douyu-streamer-card-body p {
            font-size: 13px;
            color: var(--douyu-gray);
            margin-bottom: 8px;
        }

        .douyu-streamer-badge {
            display: inline-block;
            background: var(--douyu-cyan);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
        }

        @media (max-width: 991px) {
            .douyu-streamer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .douyu-streamer-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== COMPARISON TABLE ===== */
        .douyu-comparison {
            background: var(--douyu-dark);
            border-radius: var(--douyu-radius);
            padding: 36px 32px;
            color: #fff;
        }

        .douyu-comparison .douyu-section-title {
            color: #fff;
        }

        .douyu-comparison .douyu-section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .douyu-comparison-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin-top: 20px;
            font-size: 15px;
        }

        .douyu-comparison-table th,
        .douyu-comparison-table td {
            padding: 14px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            text-align: left;
            vertical-align: middle;
        }

        .douyu-comparison-table th {
            font-weight: 600;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            border-bottom: 2px solid rgba(255, 255, 255, 0.2);
        }

        .douyu-comparison-table td:first-child {
            font-weight: 500;
            color: rgba(255, 255, 255, 0.8);
        }

        .douyu-comparison-table .douyu-highlight {
            color: var(--douyu-orange);
            font-weight: 600;
        }

        .douyu-comparison-table .douyu-positive {
            color: var(--douyu-teal);
            font-weight: 600;
        }

        .douyu-comparison-table .douyu-neutral {
            color: rgba(255, 255, 255, 0.55);
        }

        .douyu-comparison-table tr:last-child td {
            border-bottom: none;
        }

        @media (max-width: 767px) {
            .douyu-comparison {
                padding: 24px 16px;
                overflow-x: auto;
            }
            .douyu-comparison-table {
                font-size: 13px;
                min-width: 520px;
            }
            .douyu-comparison-table th,
            .douyu-comparison-table td {
                padding: 10px 10px;
            }
        }

        /* ===== FAQ ===== */
        .douyu-accordion .accordion-item {
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--douyu-white);
            box-shadow: var(--douyu-shadow);
        }

        .douyu-accordion .accordion-button {
            background: var(--douyu-white);
            color: var(--douyu-black);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            line-height: 1.6;
        }

        .douyu-accordion .accordion-button:not(.collapsed) {
            background: #FFF6EE;
            color: var(--douyu-orange);
            border-left: 4px solid var(--douyu-orange);
            padding-left: 18px;
            box-shadow: none;
        }

        .douyu-accordion .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
            border-color: var(--douyu-orange);
        }

        .douyu-accordion .accordion-button::after {
            background-size: 16px;
            transition: transform 0.3s ease;
        }

        .douyu-accordion .accordion-body {
            background: #FFF6EE;
            border-left: 4px solid var(--douyu-orange);
            padding: 16px 22px 20px;
            font-size: 15px;
            color: #3A4149;
            line-height: 1.9;
        }

        /* ===== CTA FORM ===== */
        .douyu-cta-section {
            background: var(--douyu-dark);
            border-radius: var(--douyu-radius);
            padding: 40px 36px;
            color: #fff;
        }

        .douyu-cta-section .douyu-section-title {
            color: #fff;
        }

        .douyu-cta-section .douyu-section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }

        .douyu-form-card {
            background: var(--douyu-white);
            border-radius: var(--douyu-radius);
            padding: 28px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
        }

        .douyu-form-label {
            font-weight: 600;
            font-size: 14px;
            color: var(--douyu-black);
            margin-bottom: 6px;
            display: block;
        }

        .douyu-form-control {
            background: #F5F7FA;
            border: 1px solid #D9DEE6;
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 15px;
            width: 100%;
            transition: all var(--douyu-transition);
            color: var(--douyu-black);
        }

        .douyu-form-control:focus {
            outline: none;
            border-color: var(--douyu-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
            background: #fff;
        }

        .douyu-form-select {
            background: #F5F7FA;
            border: 1px solid #D9DEE6;
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 15px;
            width: 100%;
            transition: all var(--douyu-transition);
            color: var(--douyu-black);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
        }

        .douyu-form-select:focus {
            outline: none;
            border-color: var(--douyu-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
            background-color: #fff;
        }

        .douyu-form-textarea {
            min-height: 100px;
            resize: vertical;
        }

        .douyu-btn-primary {
            background: var(--douyu-orange);
            color: #fff;
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 16px;
            transition: all var(--douyu-transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .douyu-btn-primary:hover {
            background: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }

        .douyu-btn-secondary {
            background: transparent;
            color: var(--douyu-orange);
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .douyu-btn-secondary:hover {
            background: var(--douyu-orange-light);
            color: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
        }

        .douyu-form-privacy {
            font-size: 13px;
            color: var(--douyu-gray-light);
            margin-top: 12px;
        }

        .douyu-form-success {
            display: none;
            background: #E6F9F3;
            border: 1px solid var(--douyu-teal);
            color: #007A63;
            padding: 16px 20px;
            border-radius: 8px;
            font-weight: 500;
            margin-bottom: 16px;
        }

        .douyu-form-success.show {
            display: block;
        }

        @media (max-width: 767px) {
            .douyu-cta-section {
                padding: 24px 16px;
            }
            .douyu-form-card {
                padding: 20px 16px;
            }
        }

        /* ===== PAGINATION ===== */
        .douyu-pagination {
            display: flex;
            gap: 8px;
            justify-content: center;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .douyu-pagination .page-link-custom {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 8px;
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            color: var(--douyu-black);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--douyu-transition);
            cursor: pointer;
        }

        .douyu-pagination .page-link-custom:hover {
            border-color: var(--douyu-orange);
            color: var(--douyu-orange);
        }

        .douyu-pagination .page-link-custom.active {
            background: var(--douyu-orange);
            border-color: var(--douyu-orange);
            color: #fff;
            font-weight: 600;
        }

        .douyu-pagination .page-link-custom.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* ===== SIDEBAR ===== */
        .douyu-sidebar {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 24px;
            box-shadow: var(--douyu-shadow);
        }

        .douyu-sidebar h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--douyu-orange);
            display: inline-block;
        }

        .douyu-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .douyu-tag-list a {
            display: inline-block;
            background: var(--douyu-bg);
            border: 1px solid var(--douyu-border);
            color: var(--douyu-gray);
            font-size: 13px;
            padding: 4px 12px;
            border-radius: 16px;
            transition: all var(--douyu-transition);
        }

        .douyu-tag-list a:hover {
            background: var(--douyu-orange-light);
            border-color: var(--douyu-orange);
            color: var(--douyu-orange);
        }

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

        .douyu-related-list li {
            padding: 10px 0;
            border-bottom: 1px solid var(--douyu-border);
        }

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

        .douyu-related-list a {
            font-size: 14px;
            color: #2A3038;
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.6;
        }

        .douyu-related-list a::before {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 10px;
            color: var(--douyu-orange);
        }

        .douyu-related-list a:hover {
            color: var(--douyu-orange);
        }

        /* ===== FOOTER ===== */
        .douyu-footer {
            background: var(--douyu-black);
            color: rgba(255, 255, 255, 0.75);
            margin-top: 56px;
            padding: 56px 0 28px;
        }

        .douyu-footer .douyu-container {
            padding-left: 24px;
            padding-right: 24px;
        }

        .douyu-footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .douyu-footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .douyu-footer-brand-desc {
            font-size: 13px;
            line-height: 1.9;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 16px;
        }

        .douyu-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

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

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

        .douyu-footer ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--douyu-transition);
        }

        .douyu-footer ul li a:hover {
            color: var(--douyu-orange);
        }

        .douyu-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .douyu-footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }

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

        @media (max-width: 991px) {
            .douyu-footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 575px) {
            .douyu-footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .douyu-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

/* roulang page: category5 */
:root {
      --douyu-black: #14171C;
      --douyu-dark: #1E232A;
      --douyu-orange: #FF6B1A;
      --douyu-orange-dark: #E85A00;
      --douyu-orange-light: #FFF0E5;
      --douyu-cyan: #00B8D9;
      --douyu-teal: #00C2A8;
      --douyu-bg: #F5F7FA;
      --douyu-gray: #6B7280;
      --douyu-gray-light: #9CA3AF;
      --douyu-border: #E6EAF0;
      --douyu-white: #FFFFFF;
      --douyu-radius: 14px;
      --douyu-radius-sm: 10px;
      --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
      --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
      --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
      --douyu-transition: 0.2s ease;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: var(--douyu-font);
      background-color: var(--douyu-bg);
      color: var(--douyu-black);
      line-height: 1.8;
      font-size: 16px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--douyu-transition);
    }
    a:hover {
      color: var(--douyu-orange);
      text-decoration: none;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button,
    input,
    select,
    textarea {
      font-family: var(--douyu-font);
    }
    .container {
      max-width: 1200px;
    }
    .douyu-container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 16px;
      padding-right: 16px;
    }
    @media (min-width: 576px) {
      .douyu-container {
        padding-left: 24px;
        padding-right: 24px;
      }
    }
    @media (min-width: 992px) {
      .douyu-container {
        padding-left: 32px;
        padding-right: 32px;
      }
    }
    /* ===== HEADER / NAV ===== */
    .douyu-header {
      background: var(--douyu-white);
      border-bottom: 1px solid var(--douyu-border);
      position: sticky;
      top: 0;
      z-index: 1050;
      padding: 0 16px;
      box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
    }
    .douyu-header-inner {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 68px;
      gap: 16px;
    }
    .douyu-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--douyu-black);
      white-space: nowrap;
    }
    .douyu-logo:hover {
      color: var(--douyu-orange);
    }
    .douyu-logo-icon {
      width: 36px;
      height: 36px;
      background: var(--douyu-orange);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 18px;
      flex-shrink: 0;
    }
    .douyu-nav-desktop {
      display: flex;
      align-items: center;
      gap: 4px;
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .douyu-nav-desktop > li > a {
      display: block;
      padding: 10px 14px;
      font-size: 15px;
      font-weight: 500;
      color: #2A3038;
      border-radius: 8px;
      position: relative;
      white-space: nowrap;
      transition: all var(--douyu-transition);
    }
    .douyu-nav-desktop > li > a:hover,
    .douyu-nav-desktop > li > a:focus {
      color: var(--douyu-orange);
      background: var(--douyu-orange-light);
    }
    .douyu-nav-desktop > li > a.active {
      color: var(--douyu-orange);
      background: var(--douyu-orange-light);
      font-weight: 600;
    }
    .douyu-nav-desktop > li > a.active::after {
      content: '';
      position: absolute;
      bottom: 2px;
      left: 14px;
      right: 14px;
      height: 3px;
      background: var(--douyu-orange);
      border-radius: 3px;
    }
    .douyu-nav-cta {
      background: var(--douyu-orange);
      color: #fff !important;
      border-radius: 10px;
      padding: 10px 20px !important;
      font-weight: 600;
      font-size: 15px;
      transition: all var(--douyu-transition);
      border: 2px solid var(--douyu-orange);
      white-space: nowrap;
      margin-left: 8px;
    }
    .douyu-nav-cta:hover {
      background: var(--douyu-orange-dark) !important;
      border-color: var(--douyu-orange-dark);
      color: #fff !important;
      box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
    }
    .douyu-nav-toggle {
      display: none;
      background: var(--douyu-black);
      color: #fff;
      border: none;
      width: 44px;
      height: 44px;
      border-radius: 10px;
      font-size: 20px;
      cursor: pointer;
      transition: background var(--douyu-transition);
      align-items: center;
      justify-content: center;
    }
    .douyu-nav-toggle:hover {
      background: var(--douyu-orange);
    }
    .douyu-mobile-menu {
      display: none;
      background: var(--douyu-white);
      border-top: 1px solid var(--douyu-border);
      padding: 12px 16px 20px;
      list-style: none;
      margin: 0;
    }
    .douyu-mobile-menu > li > a {
      display: block;
      padding: 12px 16px;
      font-size: 16px;
      font-weight: 500;
      color: #2A3038;
      border-radius: 8px;
      transition: all var(--douyu-transition);
    }
    .douyu-mobile-menu > li > a:hover,
    .douyu-mobile-menu > li > a.active {
      color: var(--douyu-orange);
      background: var(--douyu-orange-light);
    }
    @media (min-width: 992px) {
      .douyu-mobile-menu {
        display: none !important;
      }
    }
    @media (max-width: 991.98px) {
      .douyu-nav-desktop {
        display: none;
      }
      .douyu-nav-toggle {
        display: inline-flex;
      }
      .douyu-mobile-menu.show {
        display: block;
      }
    }
    /* ===== BREADCRUMB ===== */
    .douyu-breadcrumb {
      background: transparent;
      padding: 20px 0 0;
      margin: 0;
      font-size: 14px;
      color: var(--douyu-gray);
    }
    .douyu-breadcrumb ol {
      display: flex;
      flex-wrap: wrap;
      list-style: none;
      margin: 0;
      padding: 0;
      gap: 8px;
    }
    .douyu-breadcrumb li + li::before {
      content: '›';
      margin-right: 8px;
      color: var(--douyu-gray-light);
    }
    .douyu-breadcrumb a {
      color: var(--douyu-gray);
    }
    .douyu-breadcrumb a:hover {
      color: var(--douyu-orange);
    }
    .douyu-breadcrumb .current {
      color: var(--douyu-orange);
      font-weight: 500;
    }
    /* ===== BUTTONS ===== */
    .douyu-btn {
      display: inline-block;
      font-weight: 600;
      font-size: 15px;
      padding: 12px 24px;
      border-radius: 10px;
      transition: all var(--douyu-transition);
      border: 2px solid transparent;
      cursor: pointer;
      line-height: 1.4;
    }
    .douyu-btn-primary {
      background: var(--douyu-orange);
      color: #fff;
      border-color: var(--douyu-orange);
    }
    .douyu-btn-primary:hover {
      background: var(--douyu-orange-dark);
      border-color: var(--douyu-orange-dark);
      color: #fff;
      box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
    }
    .douyu-btn-outline {
      background: transparent;
      color: var(--douyu-orange);
      border-color: var(--douyu-orange);
    }
    .douyu-btn-outline:hover {
      background: var(--douyu-orange-light);
      color: var(--douyu-orange-dark);
      border-color: var(--douyu-orange);
    }
    .douyu-btn-light {
      background: #fff;
      color: var(--douyu-black);
      border-color: #fff;
    }
    .douyu-btn-light:hover {
      background: var(--douyu-orange-light);
      color: var(--douyu-orange-dark);
      border-color: var(--douyu-orange);
    }
    a:focus-visible,
    button:focus-visible {
      outline: none;
      box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
    }
    /* ===== BANNER / HERO ===== */
    .douyu-page-banner {
      background-image: url('/assets/images/backpic/back-2.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      color: #fff;
      padding: 64px 0;
    }
    .douyu-page-banner::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(to right, rgba(20,23,28,0.94) 20%, rgba(20,23,28,0.65) 100%);
    }
    .douyu-page-banner-content {
      position: relative;
      z-index: 2;
      max-width: 800px;
    }
    .douyu-page-banner h1 {
      font-size: 40px;
      font-weight: 700;
      line-height: 1.3;
      margin: 0 0 16px;
      color: #fff;
    }
    .douyu-page-banner .douyu-subtitle {
      font-size: 17px;
      color: rgba(255,255,255,0.85);
      margin-bottom: 24px;
      max-width: 700px;
      line-height: 1.8;
    }
    .douyu-page-banner .douyu-btn {
      margin-right: 12px;
    }
    @media (max-width: 767.98px) {
      .douyu-page-banner {
        padding: 48px 0;
      }
      .douyu-page-banner h1 {
        font-size: 30px;
      }
      .douyu-page-banner .douyu-subtitle {
        font-size: 16px;
      }
    }
    /* ===== SECTION COMMON ===== */
    .douyu-section {
      padding: 72px 0;
    }
    .douyu-section-alt {
      background: #fff;
    }
    .douyu-section-head {
      margin-bottom: 40px;
    }
    .douyu-section-head h2 {
      font-size: 28px;
      font-weight: 600;
      color: var(--douyu-black);
      margin: 0 0 12px;
      line-height: 1.4;
    }
    .douyu-section-head p {
      font-size: 16px;
      color: var(--douyu-gray);
      max-width: 800px;
      margin: 0;
      line-height: 1.8;
    }
    .douyu-badge {
      display: inline-block;
      background: var(--douyu-orange-light);
      color: var(--douyu-orange-dark);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
    }
    .douyu-text-orange {
      color: var(--douyu-orange);
    }
    .douyu-text-cyan {
      color: var(--douyu-cyan);
    }
    .douyu-mb-0 {
      margin-bottom: 0;
    }
    .douyu-mt-24 {
      margin-top: 24px;
    }
    .douyu-mt-32 {
      margin-top: 32px;
    }
    /* ===== CARDS ===== */
    .douyu-card {
      background: #fff;
      border: 1px solid var(--douyu-border);
      border-radius: var(--douyu-radius);
      box-shadow: var(--douyu-shadow);
      transition: all var(--douyu-transition);
      overflow: hidden;
      height: 100%;
    }
    .douyu-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--douyu-shadow-hover);
      border-color: var(--douyu-orange);
    }
    .douyu-card-img {
      aspect-ratio: 16/9;
      background-size: cover;
      background-position: center;
    }
    .douyu-card-body {
      padding: 24px;
    }
    .douyu-card-title {
      font-size: 19px;
      font-weight: 600;
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .douyu-card-text {
      color: var(--douyu-gray);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .douyu-card-tag {
      display: inline-block;
      background: var(--douyu-bg);
      color: var(--douyu-gray);
      font-size: 13px;
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 16px;
    }
    .douyu-card-link {
      color: var(--douyu-orange);
      font-weight: 600;
      font-size: 15px;
    }
    .douyu-card-link:hover {
      color: var(--douyu-orange-dark);
    }
    /* ===== STATS ===== */
    .douyu-stat-cards {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .douyu-stat-card {
      background: #fff;
      border: 1px solid var(--douyu-border);
      border-radius: var(--douyu-radius);
      padding: 24px;
      text-align: left;
      box-shadow: var(--douyu-shadow);
      transition: all var(--douyu-transition);
    }
    .douyu-stat-card:hover {
      border-color: var(--douyu-orange);
      box-shadow: var(--douyu-shadow-hover);
      transform: translateY(-2px);
    }
    .douyu-stat-number {
      font-size: 36px;
      font-weight: 700;
      color: var(--douyu-orange);
      line-height: 1.2;
      margin-bottom: 8px;
    }
    .douyu-stat-number .unit {
      font-size: 18px;
      font-weight: 600;
      margin-left: 4px;
    }
    .douyu-stat-label {
      font-size: 14px;
      color: var(--douyu-gray);
    }
    .douyu-stat-trend {
      font-size: 13px;
      margin-top: 8px;
    }
    .douyu-stat-trend.up {
      color: var(--douyu-teal);
    }
    @media (max-width: 991.98px) {
      .douyu-stat-cards {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 575.98px) {
      .douyu-stat-cards {
        grid-template-columns: 1fr;
      }
    }
    /* ===== PROCESS ===== */
    .douyu-process {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .douyu-process-step {
      background: #fff;
      border: 1px solid var(--douyu-border);
      border-radius: var(--douyu-radius);
      padding: 24px;
      position: relative;
    }
    .douyu-process-step .step-num {
      width: 32px;
      height: 32px;
      background: var(--douyu-orange);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 16px;
    }
    .douyu-process-step h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .douyu-process-step p {
      font-size: 14px;
      color: var(--douyu-gray);
      margin: 0;
    }
    @media (max-width: 991.98px) {
      .douyu-process {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 575.98px) {
      .douyu-process {
        grid-template-columns: 1fr;
      }
    }
    /* ===== COMPARISON ===== */
    .douyu-comparison-table {
      background: #fff;
      border: 1px solid var(--douyu-border);
      border-radius: var(--douyu-radius);
      overflow: hidden;
    }
    .douyu-comparison-table table {
      width: 100%;
      border-collapse: collapse;
    }
    .douyu-comparison-table th,
    .douyu-comparison-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--douyu-border);
      text-align: left;
      vertical-align: top;
    }
    .douyu-comparison-table th {
      background: var(--douyu-bg);
      font-weight: 600;
      font-size: 15px;
    }
    .douyu-comparison-table td:first-child {
      font-weight: 500;
      color: var(--douyu-dark);
    }
    .douyu-comparison-table tr:last-child td {
      border-bottom: none;
    }
    .douyu-highlight {
      color: var(--douyu-orange);
      font-weight: 600;
    }
    .douyu-success {
      color: var(--douyu-teal);
      font-weight: 600;
    }
    @media (max-width: 767.98px) {
      .douyu-comparison-table table,
      .douyu-comparison-table thead,
      .douyu-comparison-table tbody,
      .douyu-comparison-table th,
      .douyu-comparison-table td,
      .douyu-comparison-table tr {
        display: block;
      }
      .douyu-comparison-table th {
        position: absolute;
        top: -9999px;
        left: -9999px;
      }
      .douyu-comparison-table td {
        border: none;
        border-bottom: 1px solid var(--douyu-border);
        position: relative;
        padding-left: 40%;
      }
      .douyu-comparison-table td:before {
        position: absolute;
        top: 16px;
        left: 20px;
        width: 35%;
        padding-right: 10px;
        white-space: nowrap;
        font-weight: 600;
        color: var(--douyu-dark);
      }
      .douyu-comparison-table td:nth-of-type(1):before { content: "对比维度"; }
      .douyu-comparison-table td:nth-of-type(2):before { content: "斗鱼直播"; }
      .douyu-comparison-table td:nth-of-type(3):before { content: "优化前/通用"; }
    }
    /* ===== FAQ ===== */
    .douyu-faq-item {
      background: #fff;
      border: 1px solid var(--douyu-border);
      border-radius: var(--douyu-radius-sm);
      margin-bottom: 12px;
      overflow: hidden;
      transition: all var(--douyu-transition);
    }
    .douyu-faq-item.active {
      border-left: 4px solid var(--douyu-orange);
      background: #FFF6EE;
    }
    .douyu-faq-question {
      width: 100%;
      background: transparent;
      border: none;
      padding: 16px 24px;
      text-align: left;
      font-size: 16px;
      font-weight: 600;
      color: var(--douyu-black);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      line-height: 1.6;
    }
    .douyu-faq-question:hover {
      color: var(--douyu-orange);
    }
    .douyu-faq-question .icon {
      transition: transform var(--douyu-transition);
      color: var(--douyu-orange);
    }
    .douyu-faq-item.active .douyu-faq-question .icon {
      transform: rotate(180deg);
    }
    .douyu-faq-answer {
      padding: 0 24px 16px;
      color: var(--douyu-gray);
      font-size: 15px;
      line-height: 1.8;
    }
    /* ===== CTA FORM ===== */
    .douyu-cta-section {
      background: var(--douyu-dark);
      color: #fff;
      padding: 72px 0;
    }
    .douyu-cta-wrapper {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .douyu-cta-title {
      font-size: 28px;
      font-weight: 600;
      margin-bottom: 16px;
      color: #fff;
    }
    .douyu-cta-desc {
      font-size: 16px;
      color: rgba(255,255,255,0.8);
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .douyu-cta-benefits {
      list-style: none;
      padding: 0;
      margin: 0 0 24px;
    }
    .douyu-cta-benefits li {
      padding-left: 28px;
      position: relative;
      margin-bottom: 10px;
      color: rgba(255,255,255,0.9);
    }
    .douyu-cta-benefits li::before {
      content: '\f058';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      color: var(--douyu-orange);
      position: absolute;
      left: 0;
    }
    .douyu-form-card {
      background: #fff;
      border-radius: var(--douyu-radius);
      padding: 32px;
      box-shadow: var(--douyu-shadow);
    }
    .douyu-form-card .form-label {
      font-weight: 500;
      color: var(--douyu-black);
      margin-bottom: 6px;
    }
    .douyu-form-card .form-control,
    .douyu-form-card .form-select {
      background: var(--douyu-bg);
      border: 1px solid #D9DEE6;
      border-radius: 8px;
      padding: 10px 14px;
      transition: all var(--douyu-transition);
      font-size: 15px;
    }
    .douyu-form-card .form-control:focus,
    .douyu-form-card .form-select:focus {
      border-color: var(--douyu-orange);
      box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
      background: #fff;
    }
    .douyu-form-card textarea.form-control {
      min-height: 100px;
    }
    .douyu-form-privacy {
      font-size: 13px;
      color: var(--douyu-gray);
      margin-top: 12px;
    }
    @media (max-width: 991.98px) {
      .douyu-cta-wrapper {
        grid-template-columns: 1fr;
      }
    }
    /* ===== FOOTER ===== */
    .douyu-footer {
      background: var(--douyu-black);
      color: #fff;
      padding: 56px 0 24px;
    }
    .douyu-footer a {
      color: rgba(255,255,255,0.65);
    }
    .douyu-footer a:hover {
      color: var(--douyu-orange);
    }
    .douyu-footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 32px;
      margin-bottom: 40px;
    }
    .douyu-footer h5 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .douyu-footer ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .douyu-footer ul li {
      margin-bottom: 10px;
    }
    .douyu-footer-brand span {
      display: inline-block;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }
    .douyu-footer-brand-desc {
      color: rgba(255,255,255,0.65);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .douyu-footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.15);
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      font-size: 14px;
      color: rgba(255,255,255,0.65);
    }
    .douyu-footer-bottom a {
      color: rgba(255,255,255,0.65);
    }
    .douyu-footer-bottom a:hover {
      color: var(--douyu-orange);
    }
    @media (max-width: 991.98px) {
      .douyu-footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }
    @media (max-width: 575.98px) {
      .douyu-footer-grid {
        grid-template-columns: 1fr;
      }
      .douyu-footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }
    /* ===== GENERIC ===== */
    .douyu-bg-white {
      background: #fff;
    }
    .douyu-divider {
      height: 1px;
      background: var(--douyu-border);
      margin: 0;
    }
    .douyu-list-check {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .douyu-list-check li {
      padding-left: 28px;
      position: relative;
      margin-bottom: 12px;
    }
    .douyu-list-check li::before {
      content: '\f00c';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      color: var(--douyu-teal);
      position: absolute;
      left: 0;
    }

/* roulang page: category4 */
:root {
  --douyu-black: #14171C;
  --douyu-dark: #1E232A;
  --douyu-orange: #FF6B1A;
  --douyu-orange-dark: #E85A00;
  --douyu-orange-light: #FFF0E5;
  --douyu-cyan: #00B8D9;
  --douyu-teal: #00C2A8;
  --douyu-bg: #F5F7FA;
  --douyu-gray: #6B7280;
  --douyu-gray-light: #9CA3AF;
  --douyu-border: #E6EAF0;
  --douyu-white: #FFFFFF;
  --douyu-radius: 14px;
  --douyu-radius-sm: 10px;
  --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
  --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
  --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --douyu-transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--douyu-font);
  background-color: var(--douyu-bg);
  color: var(--douyu-black);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--douyu-transition);
}

a:hover {
  color: var(--douyu-orange);
  text-decoration: none;
}

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

button,
input,
select,
textarea {
  font-family: var(--douyu-font);
}

.container {
  max-width: 1200px;
}

.douyu-container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

/* ===== HEADER / NAV ===== */
.douyu-header {
  background: var(--douyu-white);
  border-bottom: 1px solid var(--douyu-border);
  position: sticky;
  top: 0;
  z-index: 1050;
  padding: 0 16px;
  box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
}

.douyu-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.douyu-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--douyu-black);
  white-space: nowrap;
}

.douyu-logo:hover {
  color: var(--douyu-orange);
}

.douyu-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--douyu-orange);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  flex-shrink: 0;
}

.douyu-nav-desktop {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.douyu-nav-desktop>li>a {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: #2A3038;
  border-radius: 8px;
  position: relative;
  white-space: nowrap;
  transition: all var(--douyu-transition);
}

.douyu-nav-desktop>li>a:hover,
.douyu-nav-desktop>li>a:focus {
  color: var(--douyu-orange);
  background: var(--douyu-orange-light);
}

.douyu-nav-desktop>li>a.active {
  color: var(--douyu-orange);
  background: var(--douyu-orange-light);
  font-weight: 600;
}

.douyu-nav-desktop>li>a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 3px;
  background: var(--douyu-orange);
  border-radius: 3px;
}

.douyu-nav-cta {
  background: var(--douyu-orange);
  color: #fff !important;
  border-radius: 10px;
  padding: 10px 20px !important;
  font-weight: 600;
  font-size: 15px;
  transition: all var(--douyu-transition);
  border: 2px solid var(--douyu-orange);
  white-space: nowrap;
  margin-left: 8px;
}

.douyu-nav-cta:hover {
  background: var(--douyu-orange-dark) !important;
  border-color: var(--douyu-orange-dark);
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
}

.douyu-nav-toggle {
  display: none;
  background: var(--douyu-black);
  color: #fff;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  font-size: 20px;
  cursor: pointer;
  transition: background var(--douyu-transition);
  align-items: center;
  justify-content: center;
}

.douyu-nav-toggle:hover {
  background: var(--douyu-orange);
}

.douyu-mobile-menu {
  display: none;
  background: var(--douyu-white);
  border-top: 1px solid var(--douyu-border);
  padding: 12px 16px 20px;
  list-style: none;
  margin: 0;
}

.douyu-mobile-menu>li>a {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  font-weight: 500;
  color: #2A3038;
  border-radius: 8px;
  transition: all var(--douyu-transition);
}

.douyu-mobile-menu>li>a:hover,
.douyu-mobile-menu>li>a.active {
  color: var(--douyu-orange);
  background: var(--douyu-orange-light);
}

/* ===== BREADCRUMB ===== */
.douyu-breadcrumb-wrap {
  background: var(--douyu-bg);
  border-bottom: 1px solid var(--douyu-border);
  padding: 14px 0;
}

.douyu-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 14px;
  color: var(--douyu-gray);
  flex-wrap: wrap;
}

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

.douyu-breadcrumb li:not(:last-child)::after {
  content: '/';
  color: var(--douyu-gray-light);
  font-size: 13px;
}

.douyu-breadcrumb a {
  color: var(--douyu-gray);
  transition: color var(--douyu-transition);
}

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

.douyu-breadcrumb li:last-child {
  color: var(--douyu-black);
  font-weight: 500;
}

/* ===== PAGE HERO ===== */
.douyu-page-hero {
  background: linear-gradient(135deg, rgba(20,23,28,0.92) 0%, rgba(20,23,28,0.75) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 72px 0 60px;
  color: #fff;
  position: relative;
}

.douyu-page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--douyu-orange), var(--douyu-cyan), var(--douyu-teal));
}

.douyu-page-hero h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 18px;
  color: #fff;
}

.douyu-page-hero p {
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255,255,255,0.85);
  max-width: 820px;
  margin-bottom: 0;
}

.douyu-page-hero .hero-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.douyu-page-hero .hero-tag {
  background: rgba(255,107,26,0.22);
  border: 1px solid rgba(255,107,26,0.5);
  color: #FFB38A;
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--douyu-transition);
}

.douyu-page-hero .hero-tag:hover {
  background: rgba(255,107,26,0.38);
  color: #fff;
}

/* ===== SECTION BASE ===== */
.douyu-section {
  padding: 64px 0;
}

.douyu-section-alt {
  background: var(--douyu-white);
}

.douyu-section-dark {
  background: var(--douyu-black);
  color: #fff;
}

.douyu-section-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
  position: relative;
  padding-left: 16px;
}

.douyu-section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: var(--douyu-orange);
  border-radius: 3px;
}

.douyu-section-sub {
  font-size: 16px;
  color: var(--douyu-gray);
  line-height: 1.85;
  margin-bottom: 32px;
  max-width: 760px;
}

.douyu-section-dark .douyu-section-title {
  color: #fff;
}

.douyu-section-dark .douyu-section-sub {
  color: rgba(255,255,255,0.7);
}

/* ===== INTRO BLOCK ===== */
.douyu-intro-card {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius);
  padding: 36px 40px;
  box-shadow: var(--douyu-shadow);
  position: relative;
  overflow: hidden;
}

.douyu-intro-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--douyu-orange), var(--douyu-cyan));
}

.douyu-intro-card p {
  font-size: 16px;
  line-height: 2.0;
  color: #3A4148;
  margin-bottom: 16px;
}

.douyu-intro-card p:last-child {
  margin-bottom: 0;
}

/* ===== METRICS ===== */
.douyu-metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.douyu-metric-card {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius);
  padding: 24px 22px;
  box-shadow: var(--douyu-shadow);
  transition: all var(--douyu-transition);
  text-align: left;
}

.douyu-metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--douyu-shadow-hover);
  border-color: var(--douyu-orange);
}

.douyu-metric-value {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--douyu-orange);
  margin-bottom: 6px;
}

.douyu-metric-card .metric-change {
  font-size: 13px;
  color: var(--douyu-teal);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 8px;
}

.douyu-metric-label {
  font-size: 14px;
  color: var(--douyu-gray);
  line-height: 1.5;
}

/* ===== PRODUCT CARDS ===== */
.douyu-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.douyu-product-card {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius);
  overflow: hidden;
  box-shadow: var(--douyu-shadow);
  transition: all var(--douyu-transition);
  display: flex;
  flex-direction: column;
}

.douyu-product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--douyu-shadow-hover);
  border-color: var(--douyu-orange);
}

.douyu-product-card .card-img-wrap {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.douyu-product-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.douyu-product-card:hover .card-img-wrap img {
  transform: scale(1.05);
}

.douyu-product-card .card-img-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(0deg, rgba(20,23,28,0.55), transparent);
  pointer-events: none;
}

.card-img-wrap .card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: var(--douyu-orange);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  letter-spacing: 0.4px;
}

.card-img-wrap .card-date {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  background: rgba(20,23,28,0.75);
  color: rgba(255,255,255,0.9);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
}

.douyu-product-card .card-body-wrap {
  padding: 20px 22px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.douyu-product-card .card-title {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  margin-bottom: 10px;
  color: var(--douyu-black);
}

.douyu-product-card .card-text {
  font-size: 14px;
  color: var(--douyu-gray);
  line-height: 1.75;
  margin-bottom: 16px;
  flex: 1;
}

.douyu-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--douyu-orange);
  transition: all var(--douyu-transition);
}

.douyu-card-link:hover {
  color: var(--douyu-orange-dark);
  gap: 10px;
}

/* ===== DEEP CONTENT ===== */
.douyu-deep-content {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius);
  padding: 40px 44px;
  box-shadow: var(--douyu-shadow);
}

.douyu-deep-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.5;
}

.douyu-deep-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 12px;
  line-height: 1.5;
  color: var(--douyu-orange);
}

.douyu-deep-content p {
  font-size: 15.5px;
  line-height: 1.95;
  color: #3A4148;
  margin-bottom: 16px;
}

.douyu-deep-content ul {
  padding-left: 20px;
  margin-bottom: 18px;
}

.douyu-deep-content ul li {
  font-size: 15px;
  line-height: 1.85;
  color: #3A4148;
  margin-bottom: 10px;
  padding-left: 4px;
}

.douyu-deep-content blockquote {
  border-left: 4px solid var(--douyu-orange);
  background: var(--douyu-orange-light);
  padding: 16px 22px;
  border-radius: 0 var(--douyu-radius-sm) var(--douyu-radius-sm) 0;
  font-size: 15px;
  color: #4A5058;
  margin: 20px 0;
  line-height: 1.9;
}

/* ===== FLOW / STEPS ===== */
.douyu-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.douyu-flow-step {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius);
  padding: 26px 22px;
  box-shadow: var(--douyu-shadow);
  transition: all var(--douyu-transition);
  position: relative;
}

.douyu-flow-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--douyu-shadow-hover);
  border-color: var(--douyu-orange);
}

.douyu-flow-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--douyu-orange);
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  border-radius: 10px;
  margin-bottom: 14px;
}

.douyu-flow-step h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.douyu-flow-step p {
  font-size: 14px;
  color: var(--douyu-gray);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== COMPARE ===== */
.douyu-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.douyu-compare-card {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius);
  padding: 30px 28px;
  box-shadow: var(--douyu-shadow);
}

.douyu-compare-card.highlight {
  background: linear-gradient(135deg, #1E232A 0%, #14171C 100%);
  border-color: var(--douyu-black);
  color: #fff;
}

.douyu-compare-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.douyu-compare-card.highlight h3 {
  color: var(--douyu-orange);
}

.douyu-compare-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.douyu-compare-card ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(20,23,28,0.06);
}

.douyu-compare-card.highlight ul li {
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.85);
}

.douyu-compare-card ul li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.douyu-compare-card ul li i {
  color: var(--douyu-teal);
  font-size: 16px;
  margin-top: 4px;
  flex-shrink: 0;
}

.douyu-compare-card.highlight ul li i {
  color: var(--douyu-cyan);
}

.douyu-compare-card ul li i.fa-circle-xmark {
  color: var(--douyu-gray-light);
}

/* ===== FAQ ===== */
.douyu-accordion-item {
  background: var(--douyu-white);
  border: 1px solid var(--douyu-border);
  border-radius: var(--douyu-radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--douyu-transition);
}

.douyu-accordion-item.active {
  border-left: 4px solid var(--douyu-orange);
  background: #FFF6EE;
}

.douyu-accordion-item .accordion-header {
  padding: 0;
}

.douyu-accordion-item .accordion-button {
  background: transparent;
  border: none;
  box-shadow: none;
  font-weight: 600;
  font-size: 16px;
  padding: 18px 24px;
  color: var(--douyu-black);
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  cursor: pointer;
  transition: all var(--douyu-transition);
}

.douyu-accordion-item .accordion-button:hover {
  color: var(--douyu-orange);
}

.douyu-accordion-item .accordion-button:not(.collapsed) {
  color: var(--douyu-orange);
  background: transparent;
}

.douyu-accordion-item .accordion-button::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  background: none;
  transition: transform 0.3s ease;
  font-size: 14px;
  color: var(--douyu-gray);
}

.douyu-accordion-item .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
  color: var(--douyu-orange);
}

.douyu-accordion-item .accordion-body {
  padding: 0 24px 20px;
  font-size: 15px;
  color: #4A5058;
  line-height: 1.85;
}

/* ===== CTA FORM ===== */
.douyu-form-section {
  background: linear-gradient(135deg, #1E232A 0%, #14171C 100%);
  color: #fff;
}

.douyu-form-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.douyu-form-info h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 14px;
  color: #fff;
}

.douyu-form-info p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  line-height: 1.85;
  margin-bottom: 20px;
}

.douyu-form-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
}

.douyu-form-benefits li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  margin-bottom: 12px;
  line-height: 1.7;
}

.douyu-form-benefits li i {
  color: var(--douyu-teal);
  margin-top: 5px;
  flex-shrink: 0;
}

.douyu-form-card {
  background: var(--douyu-white);
  border-radius: var(--douyu-radius);
  padding: 36px 36px 28px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.28);
}

.douyu-form-card label {
  font-size: 14px;
  font-weight: 600;
  color: #2A3038;
  margin-bottom: 6px;
  display: block;
}

.douyu-form-card .form-control,
.douyu-form-card .form-select {
  background: var(--douyu-bg);
  border: 1px solid #D9DEE6;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--douyu-black);
  transition: all var(--douyu-transition);
  box-shadow: none;
}

.douyu-form-card .form-control:focus,
.douyu-form-card .form-select:focus {
  border-color: var(--douyu-orange);
  box-shadow: 0 0 0 3px rgba(255,107,26,0.15);
  background: #fff;
}

.douyu-form-card textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

.douyu-form-submit {
  background: var(--douyu-orange);
  color: #fff;
  border: 2px solid var(--douyu-orange);
  border-radius: 10px;
  padding: 12px 32px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--douyu-transition);
  width: 100%;
  margin-top: 4px;
}

.douyu-form-submit:hover {
  background: var(--douyu-orange-dark);
  border-color: var(--douyu-orange-dark);
  box-shadow: 0 4px 14px rgba(255,107,26,0.35);
}

.douyu-form-privacy {
  font-size: 13px;
  color: var(--douyu-gray-light);
  text-align: center;
  margin-top: 14px;
  margin-bottom: 0;
}

/* ===== FOOTER ===== */
.douyu-footer {
  background: var(--douyu-black);
  color: #fff;
  padding: 56px 0 24px;
}

.douyu-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.douyu-footer-brand {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.douyu-footer-brand-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: 18px;
  max-width: 360px;
}

.douyu-footer h5 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}

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

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

.douyu-footer ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: color var(--douyu-transition);
}

.douyu-footer ul li a:hover {
  color: var(--douyu-orange);
}

.douyu-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

.douyu-footer-bottom a {
  color: rgba(255,255,255,0.5);
  transition: color var(--douyu-transition);
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 991.98px) {
  .douyu-nav-desktop {
    gap: 0;
  }
  .douyu-nav-desktop>li>a {
    padding: 10px 10px;
    font-size: 14px;
  }
  .douyu-product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .douyu-metrics-row {
    grid-template-columns: repeat(2, 1fr);
  }
  .douyu-flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .douyu-form-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .douyu-page-hero h1 {
    font-size: 30px;
  }
  .douyu-deep-content {
    padding: 28px 26px;
  }
  .douyu-intro-card {
    padding: 28px 26px;
  }
}

@media (max-width: 767.98px) {
  .douyu-nav-toggle {
    display: flex;
  }
  .douyu-nav-desktop {
    display: none;
  }
  .douyu-mobile-menu.open {
    display: block;
  }
  .douyu-header-inner {
    min-height: 60px;
  }
  .douyu-container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .douyu-section {
    padding: 44px 0;
  }
  .douyu-page-hero {
    padding: 48px 0 40px;
  }
  .douyu-page-hero h1 {
    font-size: 25px;
  }
  .douyu-page-hero p {
    font-size: 15px;
  }
  .douyu-section-title {
    font-size: 22px;
  }
  .douyu-product-grid {
    grid-template-columns: 1fr;
  }
  .douyu-metrics-row {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .douyu-metric-value {
    font-size: 28px;
  }
  .douyu-flow-grid {
    grid-template-columns: 1fr;
  }
  .douyu-compare-grid {
    grid-template-columns: 1fr;
  }
  .douyu-footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .douyu-footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .douyu-form-card {
    padding: 24px 20px 20px;
  }
  .douyu-deep-content {
    padding: 24px 20px;
  }
  .douyu-intro-card {
    padding: 24px 20px;
  }
  .douyu-deep-content h2 {
    font-size: 20px;
  }
}

@media (max-width: 575.98px) {
  .douyu-page-hero h1 {
    font-size: 22px;
  }
  .douyu-section-title {
    font-size: 20px;
  }
  .douyu-metrics-row {
    grid-template-columns: 1fr;
  }
  .douyu-metric-card {
    padding: 18px 16px;
  }
  .douyu-metric-value {
    font-size: 26px;
  }
  .douyu-page-hero .hero-tags {
    gap: 6px;
  }
  .douyu-page-hero .hero-tag {
    font-size: 12px;
    padding: 5px 12px;
  }
  .douyu-breadcrumb {
    font-size: 12px;
  }
}

/* roulang page: category6 */
:root {
            --douyu-black: #14171C;
            --douyu-dark: #1E232A;
            --douyu-orange: #FF6B1A;
            --douyu-orange-dark: #E85A00;
            --douyu-orange-light: #FFF0E5;
            --douyu-cyan: #00B8D9;
            --douyu-teal: #00C2A8;
            --douyu-bg: #F5F7FA;
            --douyu-gray: #6B7280;
            --douyu-gray-light: #9CA3AF;
            --douyu-border: #E6EAF0;
            --douyu-white: #FFFFFF;
            --douyu-radius: 14px;
            --douyu-radius-sm: 10px;
            --douyu-shadow: 0 4px 16px rgba(20, 23, 28, 0.05);
            --douyu-shadow-hover: 0 12px 28px rgba(20, 23, 28, 0.12);
            --douyu-font: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --douyu-transition: 0.2s ease;
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--douyu-font);
            background-color: var(--douyu-bg);
            color: var(--douyu-black);
            line-height: 1.8;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--douyu-transition);
        }
        a:hover {
            color: var(--douyu-orange);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input, select, textarea {
            font-family: var(--douyu-font);
        }
        .container {
            max-width: 1200px;
        }
        .douyu-container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* ===== HEADER ===== */
        .douyu-header {
            background: var(--douyu-white);
            border-bottom: 1px solid var(--douyu-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(20, 23, 28, 0.04);
        }
        .douyu-header-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 16px;
        }
        .douyu-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--douyu-black);
            white-space: nowrap;
        }
        .douyu-logo:hover {
            color: var(--douyu-orange);
        }
        .douyu-logo-icon {
            width: 36px;
            height: 36px;
            background: var(--douyu-orange);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .douyu-nav-desktop {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .douyu-nav-desktop>li>a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            position: relative;
            white-space: nowrap;
            transition: all var(--douyu-transition);
        }
        .douyu-nav-desktop>li>a:hover,
        .douyu-nav-desktop>li>a:focus {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        .douyu-nav-desktop>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
            font-weight: 600;
        }
        .douyu-nav-desktop>li>a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 3px;
            background: var(--douyu-orange);
            border-radius: 3px;
        }
        .douyu-nav-cta {
            background: var(--douyu-orange);
            color: #fff !important;
            border-radius: 10px;
            padding: 10px 20px !important;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            border: 2px solid var(--douyu-orange);
            white-space: nowrap;
            margin-left: 8px;
        }
        .douyu-nav-cta:hover {
            background: var(--douyu-orange-dark) !important;
            border-color: var(--douyu-orange-dark);
            color: #fff !important;
            box-shadow: 0 4px 14px rgba(255, 107, 26, 0.35);
        }
        .douyu-nav-toggle {
            display: none;
            background: var(--douyu-black);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 20px;
            cursor: pointer;
            transition: background var(--douyu-transition);
            align-items: center;
            justify-content: center;
        }
        .douyu-nav-toggle:hover {
            background: var(--douyu-orange);
        }
        .douyu-mobile-menu {
            display: none;
            background: var(--douyu-white);
            border-top: 1px solid var(--douyu-border);
            padding: 12px 16px 20px;
            list-style: none;
            margin: 0;
        }
        .douyu-mobile-menu>li>a {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            font-weight: 500;
            color: #2A3038;
            border-radius: 8px;
            transition: all var(--douyu-transition);
        }
        .douyu-mobile-menu>li>a:hover,
        .douyu-mobile-menu>li>a.active {
            color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }

        /* ===== BREADCRUMB ===== */
        .douyu-breadcrumb-wrapper {
            background: var(--douyu-bg);
            border-bottom: 1px solid var(--douyu-border);
            padding: 14px 0;
        }
        .douyu-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            list-style: none;
            margin: 0;
            padding: 0;
            font-size: 14px;
            color: var(--douyu-gray);
        }
        .douyu-breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .douyu-breadcrumb li + li::before {
            content: '›';
            color: var(--douyu-gray-light);
            font-size: 16px;
            font-weight: 600;
        }
        .douyu-breadcrumb a {
            color: var(--douyu-gray);
        }
        .douyu-breadcrumb a:hover {
            color: var(--douyu-orange);
        }
        .douyu-breadcrumb .current {
            color: var(--douyu-orange);
            font-weight: 600;
        }

        /* ===== PAGE BANNER ===== */
        .douyu-page-banner {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 56px 0 72px;
            overflow: hidden;
        }
        .douyu-page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20, 23, 28, 0.85) 0%, rgba(20, 23, 28, 0.62) 55%, rgba(255, 107, 26, 0.45) 100%);
            z-index: 1;
        }
        .douyu-page-banner-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }
        .douyu-page-banner h1 {
            color: #fff;
            font-size: 34px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 16px;
        }
        .douyu-page-banner h1 .highlight {
            color: var(--douyu-orange);
        }
        .douyu-page-banner .lead {
            color: rgba(255, 255, 255, 0.82);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .douyu-banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 107, 26, 0.22);
            border: 1px solid rgba(255, 107, 26, 0.5);
            border-radius: 50px;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            color: #ffb88a;
            margin-bottom: 16px;
            backdrop-filter: blur(6px);
        }
        .douyu-banner-badge i {
            color: var(--douyu-orange);
        }

        /* ===== SECTION ===== */
        .douyu-section {
            padding: 64px 0;
        }
        .douyu-section-dark {
            background: var(--douyu-dark);
            color: #fff;
        }
        .douyu-section-light-alt {
            background: #fff;
        }
        .douyu-section-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--douyu-black);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .douyu-section-dark .douyu-section-title {
            color: #fff;
        }
        .douyu-section-subtitle {
            font-size: 15px;
            color: var(--douyu-gray);
            margin-bottom: 32px;
            max-width: 680px;
            line-height: 1.8;
        }
        .douyu-section-dark .douyu-section-subtitle {
            color: rgba(255, 255, 255, 0.65);
        }
        .douyu-divider {
            width: 48px;
            height: 4px;
            background: var(--douyu-orange);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        /* ===== INTRO TEXT ===== */
        .douyu-intro-text {
            font-size: 15px;
            line-height: 2;
            color: #2A3038;
        }
        .douyu-intro-text p {
            margin-bottom: 16px;
        }
        .douyu-intro-highlight {
            border-left: 4px solid var(--douyu-orange);
            background: #fff;
            padding: 20px 24px;
            border-radius: 0 var(--douyu-radius) var(--douyu-radius) 0;
            margin: 20px 0;
            font-weight: 500;
            color: var(--douyu-black);
            box-shadow: var(--douyu-shadow);
        }

        /* ===== CARDS ===== */
        .douyu-card {
            background: var(--douyu-white);
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            box-shadow: var(--douyu-shadow);
            overflow: hidden;
            transition: all var(--douyu-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .douyu-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--douyu-shadow-hover);
            border-color: var(--douyu-orange);
        }
        .douyu-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            flex-shrink: 0;
        }
        .douyu-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.35s ease;
        }
        .douyu-card:hover .douyu-card-img img {
            transform: scale(1.04);
        }
        .douyu-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .douyu-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--douyu-black);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .douyu-card-text {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 14px;
            flex: 1;
        }
        .douyu-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--douyu-border);
            font-size: 13px;
            color: var(--douyu-gray-light);
        }
        .douyu-card-tag {
            display: inline-block;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            border-radius: 50px;
            padding: 3px 12px;
            font-size: 12px;
            font-weight: 600;
            white-space: nowrap;
        }
        .douyu-card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--douyu-orange);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .douyu-card-link:hover {
            color: var(--douyu-orange-dark);
            gap: 8px;
        }

        /* ===== BUTTONS ===== */
        .douyu-btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--douyu-orange);
            color: #fff;
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }
        .douyu-btn-primary:hover {
            background: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
            color: #fff;
            box-shadow: 0 6px 18px rgba(255, 107, 26, 0.35);
            transform: translateY(-2px);
        }
        .douyu-btn-primary:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
            outline: none;
        }
        .douyu-btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--douyu-orange);
            border: 2px solid var(--douyu-orange);
            border-radius: 10px;
            padding: 12px 24px;
            font-weight: 600;
            font-size: 15px;
            transition: all var(--douyu-transition);
            cursor: pointer;
            text-align: center;
            justify-content: center;
        }
        .douyu-btn-outline:hover {
            background: var(--douyu-orange-light);
            color: var(--douyu-orange-dark);
            border-color: var(--douyu-orange-dark);
        }
        .douyu-btn-outline:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.2);
            outline: none;
        }

        /* ===== PROCESS / TIMELINE ===== */
        .douyu-process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .douyu-process-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--douyu-radius);
            padding: 24px 20px;
            position: relative;
            text-align: center;
            transition: all var(--douyu-transition);
        }
        .douyu-process-item:hover {
            background: rgba(255, 107, 26, 0.08);
            border-color: rgba(255, 107, 26, 0.35);
        }
        .douyu-process-num {
            display: inline-flex;
            width: 42px;
            height: 42px;
            background: var(--douyu-orange);
            color: #fff;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 12px;
        }
        .douyu-process-item h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .douyu-process-item p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
        }

        /* ===== STATS ===== */
        .douyu-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .douyu-stat-card {
            background: #fff;
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 22px 20px;
            text-align: center;
            transition: all var(--douyu-transition);
        }
        .douyu-stat-card:hover {
            border-color: var(--douyu-orange);
            box-shadow: var(--douyu-shadow-hover);
        }
        .douyu-stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--douyu-orange);
            margin-bottom: 6px;
            letter-spacing: -0.5px;
        }
        .douyu-stat-label {
            font-size: 14px;
            color: var(--douyu-gray);
            font-weight: 500;
        }

        /* ===== FAQ ===== */
        .douyu-faq-list .accordion-item {
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--douyu-white);
            box-shadow: var(--douyu-shadow);
        }
        .douyu-faq-list .accordion-button {
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--douyu-black);
            background: var(--douyu-white);
            border: none;
            border-radius: 0 !important;
            box-shadow: none !important;
        }
        .douyu-faq-list .accordion-button:not(.collapsed) {
            color: var(--douyu-orange);
            background: #FFF6EE;
            border-left: 4px solid var(--douyu-orange);
            padding-left: 18px;
        }
        .douyu-faq-list .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
            border-color: var(--douyu-orange);
        }
        .douyu-faq-list .accordion-button::after {
            background-size: 16px;
            transition: transform 0.2s ease;
        }
        .douyu-faq-list .accordion-body {
            padding: 16px 22px 20px;
            font-size: 14px;
            color: #2A3038;
            line-height: 1.9;
            background: var(--douyu-white);
        }

        /* ===== FORM ===== */
        .douyu-form-card {
            background: #fff;
            border-radius: var(--douyu-radius);
            box-shadow: 0 8px 32px rgba(20, 23, 28, 0.08);
            overflow: hidden;
        }
        .douyu-form-side {
            background: var(--douyu-dark);
            color: #fff;
            padding: 40px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-height: 100%;
        }
        .douyu-form-side h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .douyu-form-side ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }
        .douyu-form-side ul li {
            padding: 8px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .douyu-form-side ul li i {
            color: var(--douyu-orange);
            width: 18px;
            text-align: center;
        }
        .douyu-form-main {
            padding: 40px 32px;
        }
        .douyu-form-main .form-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--douyu-black);
        }
        .douyu-form-main .form-control,
        .douyu-form-main .form-select {
            background: var(--douyu-bg);
            border: 1px solid #D9DEE6;
            border-radius: 8px;
            padding: 10px 14px;
            font-size: 15px;
            transition: all var(--douyu-transition);
            color: var(--douyu-black);
        }
        .douyu-form-main .form-control:focus,
        .douyu-form-main .form-select:focus {
            border-color: var(--douyu-orange);
            box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.15);
            background: #fff;
        }
        .douyu-form-main textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }
        .douyu-form-privacy {
            font-size: 13px;
            color: var(--douyu-gray-light);
            margin-top: 12px;
        }

        /* ===== PARTNER LOGOS / TYPES ===== */
        .douyu-partner-type-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .douyu-partner-type {
            background: #fff;
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 20px 22px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--douyu-transition);
        }
        .douyu-partner-type:hover {
            border-color: var(--douyu-orange);
            background: var(--douyu-orange-light);
        }
        .douyu-partner-type-icon {
            width: 44px;
            height: 44px;
            background: var(--douyu-orange-light);
            color: var(--douyu-orange);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }
        .douyu-partner-type h5 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .douyu-partner-type p {
            font-size: 13px;
            color: var(--douyu-gray);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== CASE/NEWS LIST ===== */
        .douyu-case-item {
            background: #fff;
            border: 1px solid var(--douyu-border);
            border-radius: var(--douyu-radius);
            padding: 20px 22px;
            margin-bottom: 14px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--douyu-transition);
        }
        .douyu-case-item:hover {
            border-color: var(--douyu-orange);
            box-shadow: var(--douyu-shadow-hover);
            transform: translateY(-2px);
        }
        .douyu-case-item-img {
            width: 140px;
            aspect-ratio: 16/10;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .douyu-case-item-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .douyu-case-item-content {
            flex: 1;
        }
        .douyu-case-item-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--douyu-black);
            margin-bottom: 6px;
        }
        .douyu-case-item-text {
            font-size: 14px;
            color: var(--douyu-gray);
            line-height: 1.8;
            margin-bottom: 8px;
        }
        .douyu-case-item-date {
            font-size: 13px;
            color: var(--douyu-orange);
            font-weight: 600;
        }

        /* ===== FOOTER ===== */
        .douyu-footer {
            background: var(--douyu-black);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 28px;
        }
        .douyu-footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .douyu-footer-brand {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .douyu-footer-brand-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 16px;
            max-width: 360px;
        }
        .douyu-footer h5 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .douyu-footer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .douyu-footer ul li {
            margin-bottom: 8px;
        }
        .douyu-footer ul a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            transition: color var(--douyu-transition);
        }
        .douyu-footer ul a:hover {
            color: var(--douyu-orange);
        }
        .douyu-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .douyu-footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }
        .douyu-footer-bottom a:hover {
            color: var(--douyu-orange);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1199px) {
            .douyu-nav-desktop>li>a {
                padding: 10px 10px;
                font-size: 14px;
            }
            .douyu-process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .douyu-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .douyu-partner-type-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 991px) {
            .douyu-nav-desktop {
                display: none;
            }
            .douyu-nav-toggle {
                display: inline-flex;
            }
            .douyu-mobile-menu {
                display: block;
            }
            .douyu-footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .douyu-page-banner h1 {
                font-size: 28px;
            }
            .douyu-process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 767px) {
            .douyu-section {
                padding: 48px 0;
            }
            .douyu-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .douyu-page-banner {
                padding: 40px 0 52px;
            }
            .douyu-page-banner h1 {
                font-size: 24px;
            }
            .douyu-stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .douyu-stat-number {
                font-size: 26px;
            }
            .douyu-partner-type-grid {
                grid-template-columns: 1fr;
            }
            .douyu-process-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .douyu-case-item {
                flex-direction: column;
                gap: 12px;
            }
            .douyu-case-item-img {
                width: 100%;
                aspect-ratio: 16/9;
            }
            .douyu-footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .douyu-footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .douyu-form-side {
                padding: 28px 20px;
            }
            .douyu-form-main {
                padding: 24px 20px;
            }
        }
        @media (max-width: 575px) {
            .douyu-stats-grid {
                grid-template-columns: 1fr;
            }
            .douyu-page-banner h1 {
                font-size: 21px;
            }
            .douyu-nav-cta {
                padding: 8px 14px !important;
                font-size: 13px;
            }
            .douyu-nav-cta {
                margin-left: 0;
            }
        }