/* roulang page: index */
:root {
            --qb-primary: #0a1e2e;
            --qb-primary-light: #0f2d42;
            --qb-accent: #10b981;
            --qb-accent-dark: #059669;
            --qb-accent-glow: #34d399;
            --qb-warm: #f59e0b;
            --qb-surface: #ffffff;
            --qb-surface-alt: #f1f5f9;
            --qb-surface-dark: #0d2135;
            --qb-text: #1e293b;
            --qb-text-weak: #64748b;
            --qb-text-light: #e2e8f0;
            --qb-border: #e2e8f0;
            --qb-border-dark: #1e3a4d;
            --qb-radius: 16px;
            --qb-radius-sm: 10px;
            --qb-radius-lg: 24px;
            --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
            --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
            --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
            --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --qb-nav-height: 76px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--qb-font);
            color: var(--qb-text);
            background-color: var(--qb-surface);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--qb-transition);
        }
        a:hover {
            color: var(--qb-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(16, 185, 129, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: var(--qb-font);
        }
        ul, ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--qb-primary);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--qb-text-weak);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ NAVBAR (居中 Logo + 两侧导航) ============ */
        .qb-navbar {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--qb-border);
            height: var(--qb-nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--qb-transition);
        }
        .qb-navbar.scrolled {
            box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
        }
        .qb-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .qb-nav-left,
        .qb-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .qb-nav-left {
            justify-content: flex-end;
        }
        .qb-nav-right {
            justify-content: flex-start;
        }
        .qb-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            white-space: nowrap;
            position: relative;
        }
        .qb-nav-links a:hover {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.06);
        }
        .qb-nav-links a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .qb-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--qb-accent);
            border-radius: 3px;
        }
        .qb-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .qb-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            flex-shrink: 0;
        }
        .qb-logo:hover {
            color: var(--qb-primary);
        }
        .qb-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--qb-primary);
            padding: 8px;
            cursor: pointer;
            border-radius: var(--qb-radius-sm);
            transition: background var(--qb-transition);
        }
        .qb-mobile-toggle:hover {
            background: rgba(16, 185, 129, 0.08);
        }
        .qb-mobile-menu {
            display: none;
            position: absolute;
            top: var(--qb-nav-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--qb-border);
            box-shadow: 0 20px 40px rgba(10, 30, 46, 0.12);
            padding: 16px 20px;
            z-index: 1029;
            max-height: calc(100vh - var(--qb-nav-height));
            overflow-y: auto;
        }
        .qb-mobile-menu.open {
            display: block;
        }
        .qb-mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
        }
        .qb-mobile-menu a:hover {
            background: rgba(16, 185, 129, 0.08);
            color: var(--qb-accent-dark);
        }
        .qb-mobile-menu a.active {
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            font-weight: 600;
        }

        @media (max-width: 992px) {
            .qb-nav-left,
            .qb-nav-right {
                display: none;
            }
            .qb-nav-inner {
                justify-content: space-between;
            }
            .qb-mobile-toggle {
                display: block;
            }
            .qb-navbar {
                height: 64px;
                --qb-nav-height: 64px;
            }
        }

        /* ============ HERO ============ */
        .qb-hero {
            background: linear-gradient(160deg, #0a1e2e 0%, #0f2d42 45%, #0d2135 100%);
            color: var(--qb-text-light);
            padding: 80px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .qb-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }
        .qb-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(16,185,129,0.3), transparent);
        }
        .qb-hero .container {
            position: relative;
            z-index: 1;
        }
        .qb-hero-top {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 52px;
        }
        .qb-hero-badge {
            display: inline-block;
            padding: 8px 20px;
            background: rgba(16, 185, 129, 0.16);
            border: 1px solid rgba(16, 185, 129, 0.3);
            color: var(--qb-accent-glow);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .qb-hero-title {
            font-size: clamp(32px, 5.5vw, 52px);
            font-weight: 800;
            letter-spacing: -1px;
            color: #fff;
            margin-bottom: 18px;
            line-height: 1.2;
        }
        .qb-hero-subtitle {
            font-size: clamp(15px, 2vw, 17px);
            color: #cbd5e1;
            max-width: 680px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .qb-hero-cta-group {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .qb-hero-layout {
            display: grid;
            grid-template-columns: 1fr 1.3fr 1fr;
            gap: 28px;
            align-items: center;
        }
        .qb-hero-left,
        .qb-hero-right {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .qb-hero-point {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--qb-radius-sm);
            padding: 16px 18px;
            backdrop-filter: blur(8px);
            transition: all var(--qb-transition);
        }
        .qb-hero-point:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(16, 185, 129, 0.3);
            transform: translateX(4px);
        }
        .qb-hero-point .point-icon {
            color: var(--qb-accent-glow);
            font-size: 18px;
            margin-bottom: 6px;
        }
        .qb-hero-point .point-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .qb-hero-point .point-desc {
            font-size: 12px;
            color: #94a3b8;
            line-height: 1.5;
        }
        .qb-hero-stage {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--qb-radius-lg);
            padding: 20px;
            position: relative;
        }
        .qb-hero-stage::before {
            content: '';
            position: absolute;
            inset: -6px;
            border-radius: calc(var(--qb-radius-lg) + 6px);
            background: linear-gradient(135deg, rgba(16,185,129,0.3), transparent 40%, transparent 60%, rgba(245,158,11,0.3));
            z-index: -1;
            opacity: 0.6;
        }
        .qb-hero-stage img {
            border-radius: var(--qb-radius);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
        }
        .qb-hero-stage-label {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(10, 30, 46, 0.85);
            backdrop-filter: blur(12px);
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 12px;
            color: var(--qb-accent-glow);
            font-weight: 600;
            white-space: nowrap;
            border: 1px solid rgba(16, 185, 129, 0.3);
        }
        .qb-download-btn-group {
            display: flex;
            flex-direction: column;
            gap: 10px;
            align-items: stretch;
        }
        .qb-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 24px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--qb-transition);
            letter-spacing: 0.3px;
            text-align: center;
            white-space: nowrap;
        }
        .qb-btn-primary {
            background: var(--qb-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
        }
        .qb-btn-primary:hover {
            background: var(--qb-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(16, 185, 129, 0.4);
        }
        .qb-btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
        }
        .qb-btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        .qb-btn-outline-accent {
            background: transparent;
            color: var(--qb-accent-dark);
            border: 1.5px solid var(--qb-accent);
        }
        .qb-btn-outline-accent:hover {
            background: var(--qb-accent);
            color: #fff;
            transform: translateY(-2px);
        }
        .qb-btn-outline {
            background: transparent;
            color: var(--qb-primary);
            border: 1.5px solid var(--qb-border);
        }
        .qb-btn-outline:hover {
            border-color: var(--qb-accent);
            color: var(--qb-accent-dark);
            transform: translateY(-2px);
        }
        .qb-btn-warm {
            background: var(--qb-warm);
            color: #fff;
            box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
        }
        .qb-btn-warm:hover {
            background: #d97706;
            color: #fff;
            transform: translateY(-2px);
        }
        .qb-btn-sm {
            padding: 10px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .qb-btn-lg {
            padding: 16px 32px;
            font-size: 16px;
            border-radius: 12px;
        }

        @media (max-width: 992px) {
            .qb-hero {
                padding: 56px 0 48px;
            }
            .qb-hero-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .qb-hero-left {
                order: 2;
                flex-direction: row;
                flex-wrap: wrap;
            }
            .qb-hero-left .qb-hero-point {
                flex: 1;
                min-width: 140px;
            }
            .qb-hero-stage {
                order: 1;
            }
            .qb-hero-right {
                order: 3;
            }
            .qb-download-btn-group {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .qb-download-btn-group .qb-btn {
                flex: 1;
                min-width: 140px;
            }
        }
        @media (max-width: 520px) {
            .qb-hero-title {
                font-size: 28px;
            }
            .qb-hero-subtitle {
                font-size: 14px;
            }
            .qb-hero-left {
                flex-direction: column;
            }
        }

        /* ============ 数据指标条 ============ */
        .qb-stats-bar {
            background: var(--qb-surface);
            border-bottom: 1px solid var(--qb-border);
            padding: 28px 0;
        }
        .qb-stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .qb-stat-item {
            text-align: center;
            padding: 8px 12px;
            border-right: 1px solid var(--qb-border);
        }
        .qb-stat-item:last-child {
            border-right: none;
        }
        .qb-stat-value {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: -0.5px;
        }
        .qb-stat-label {
            font-size: 13px;
            color: var(--qb-text-weak);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .qb-stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 10px;
            }
            .qb-stat-item:nth-child(3) {
                border-right: none;
            }
            .qb-stat-item:nth-child(4),
            .qb-stat-item:nth-child(5) {
                border-right: none;
            }
        }
        @media (max-width: 520px) {
            .qb-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .qb-stat-item:nth-child(2) {
                border-right: none;
            }
        }

        /* ============ 板块通用 ============ */
        .qb-section {
            padding: 72px 0;
        }
        .qb-section-alt {
            background: var(--qb-surface-alt);
        }
        .qb-section-dark {
            background: var(--qb-surface-dark);
            color: var(--qb-text-light);
        }
        .qb-section-dark .section-title {
            color: #fff;
        }
        .qb-section-dark .section-subtitle {
            color: #94a3b8;
        }
        .qb-section-dark .qb-card {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--qb-border-dark);
        }
        .qb-section-dark .qb-card .qb-card-title {
            color: #fff;
        }
        .qb-section-dark .qb-card .qb-card-text {
            color: #94a3b8;
        }
        @media (max-width: 768px) {
            .qb-section {
                padding: 48px 0;
            }
        }

        /* ============ 资料目录（分类入口） ============ */
        .qb-catalog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .qb-catalog-card {
            background: var(--qb-surface);
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            overflow: hidden;
            transition: all var(--qb-transition);
            display: flex;
            flex-direction: column;
        }
        .qb-catalog-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-catalog-card .catalog-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .qb-catalog-card .catalog-body {
            padding: 22px 24px 26px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .qb-catalog-card .catalog-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--qb-primary);
        }
        .qb-catalog-card .catalog-desc {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.7;
            margin-bottom: 18px;
            flex: 1;
        }
        .qb-catalog-card .catalog-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--qb-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--qb-transition);
        }
        .qb-catalog-card .catalog-link:hover {
            gap: 10px;
            color: var(--qb-accent);
        }
        @media (max-width: 992px) {
            .qb-catalog-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .qb-catalog-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 价值点 ============ */
        .qb-value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .qb-value-card {
            background: var(--qb-surface);
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            padding: 32px 28px;
            transition: all var(--qb-transition);
            position: relative;
            overflow: hidden;
        }
        .qb-value-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--qb-accent), var(--qb-accent-glow));
            opacity: 0;
            transition: opacity var(--qb-transition);
        }
        .qb-value-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-value-card:hover::before {
            opacity: 1;
        }
        .qb-value-card .value-icon {
            width: 52px;
            height: 52px;
            background: rgba(16, 185, 129, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--qb-accent-dark);
            margin-bottom: 18px;
        }
        .qb-value-card .value-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--qb-primary);
        }
        .qb-value-card .value-text {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.7;
        }
        @media (max-width: 992px) {
            .qb-value-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .qb-value-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 场景演示 ============ */
        .qb-scene-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .qb-scene-img {
            border-radius: var(--qb-radius-lg);
            overflow: hidden;
            box-shadow: var(--qb-shadow);
        }
        .qb-scene-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }
        .qb-scene-content .scene-steps {
            margin-top: 26px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .qb-scene-step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .qb-scene-step .step-num {
            min-width: 36px;
            height: 36px;
            background: var(--qb-accent);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }
        .qb-scene-step .step-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--qb-primary);
            margin-bottom: 4px;
        }
        .qb-scene-step .step-desc {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.7;
        }
        @media (max-width: 992px) {
            .qb-scene-wrap {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ============ 任务进度 ============ */
        .qb-progress-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 720px;
        }
        .qb-progress-item {
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }
        .qb-progress-item .progress-icon {
            width: 44px;
            height: 44px;
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.25);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--qb-accent-dark);
            flex-shrink: 0;
        }
        .qb-progress-item .progress-info {
            flex: 1;
        }
        .qb-progress-item .progress-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--qb-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .qb-progress-item .progress-desc {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.7;
            margin-bottom: 8px;
        }
        .qb-progress-bar-track {
            height: 6px;
            background: #e2e8f0;
            border-radius: 6px;
            overflow: hidden;
            width: 100%;
        }
        .qb-progress-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--qb-accent), var(--qb-accent-glow));
            border-radius: 6px;
            transition: width 0.8s ease;
        }

        /* ============ 保障图标条 ============ */
        .qb-guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .qb-guarantee-item {
            text-align: center;
            padding: 28px 18px;
            background: var(--qb-surface);
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            transition: all var(--qb-transition);
        }
        .qb-guarantee-item:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-3px);
        }
        .qb-guarantee-item .g-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: rgba(16, 185, 129, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--qb-accent-dark);
        }
        .qb-guarantee-item .g-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 6px;
        }
        .qb-guarantee-item .g-desc {
            font-size: 13px;
            color: var(--qb-text-weak);
            line-height: 1.6;
        }
        @media (max-width: 992px) {
            .qb-guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .qb-guarantee-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 平台保障 ============ */
        .qb-platform-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .qb-platform-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--qb-border-dark);
            border-radius: var(--qb-radius);
            padding: 28px 24px;
            transition: all var(--qb-transition);
        }
        .qb-platform-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(16, 185, 129, 0.3);
            transform: translateY(-3px);
        }
        .qb-platform-item .p-icon {
            color: var(--qb-accent-glow);
            font-size: 22px;
            margin-bottom: 14px;
        }
        .qb-platform-item .p-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }
        .qb-platform-item .p-desc {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .qb-platform-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 资讯区 ============ */
        .qb-news-layout {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            gap: 32px;
        }
        .qb-news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .qb-news-item {
            border-bottom: 1px solid var(--qb-border);
            padding: 18px 0;
            transition: all var(--qb-transition);
        }
        .qb-news-item:first-child {
            padding-top: 0;
        }
        .qb-news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }
        .qb-news-item:hover {
            padding-left: 8px;
        }
        .qb-news-date {
            font-size: 12px;
            color: var(--qb-text-weak);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-news-title-link {
            font-size: 16px;
            font-weight: 600;
            color: var(--qb-primary);
            display: inline-block;
            margin-bottom: 6px;
            transition: color var(--qb-transition);
        }
        .qb-news-title-link:hover {
            color: var(--qb-accent-dark);
        }
        .qb-news-summary {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .qb-news-more {
            font-size: 13px;
            font-weight: 600;
            color: var(--qb-accent-dark);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .qb-news-sidebar {
            background: var(--qb-surface-alt);
            border-radius: var(--qb-radius);
            padding: 26px 24px;
            align-self: start;
            position: sticky;
            top: calc(var(--qb-nav-height) + 24px);
        }
        .qb-news-sidebar .sidebar-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--qb-accent);
            display: inline-block;
        }
        .qb-news-sidebar ul li {
            padding: 10px 0;
            border-bottom: 1px solid var(--qb-border);
        }
        .qb-news-sidebar ul li:last-child {
            border-bottom: none;
        }
        .qb-news-sidebar ul li a {
            font-size: 14px;
            color: var(--qb-text);
            display: block;
            transition: all var(--qb-transition);
        }
        .qb-news-sidebar ul li a:hover {
            color: var(--qb-accent-dark);
            padding-left: 4px;
        }
        @media (max-width: 768px) {
            .qb-news-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .qb-news-sidebar {
                position: static;
            }
        }

        /* ============ 品牌介绍 ============ */
        .qb-brand-wrap {
            display: grid;
            grid-template-columns: 1fr 1.4fr;
            gap: 40px;
            align-items: center;
        }
        .qb-brand-img {
            border-radius: var(--qb-radius-lg);
            overflow: hidden;
            box-shadow: var(--qb-shadow);
        }
        .qb-brand-img img {
            width: 100%;
            aspect-ratio: 1/1;
            object-fit: cover;
        }
        .qb-brand-text {
            font-size: 15px;
            color: var(--qb-text);
            line-height: 1.9;
        }
        .qb-brand-text p {
            margin-bottom: 16px;
        }
        .qb-brand-text p:last-child {
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .qb-brand-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        /* ============ 用户口碑 ============ */
        .qb-testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .qb-testimonial-card {
            background: var(--qb-surface);
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            padding: 28px 24px;
            transition: all var(--qb-transition);
        }
        .qb-testimonial-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-3px);
        }
        .qb-testimonial-card .t-stars {
            color: var(--qb-warm);
            font-size: 14px;
            margin-bottom: 14px;
        }
        .qb-testimonial-card .t-text {
            font-size: 14px;
            color: var(--qb-text);
            line-height: 1.8;
            margin-bottom: 18px;
        }
        .qb-testimonial-card .t-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .qb-testimonial-card .t-avatar {
            width: 40px;
            height: 40px;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--qb-accent-dark);
        }
        .qb-testimonial-card .t-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--qb-primary);
        }
        .qb-testimonial-card .t-role {
            font-size: 12px;
            color: var(--qb-text-weak);
        }
        @media (max-width: 992px) {
            .qb-testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .qb-testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 多端下载 ============ */
        .qb-download-section {
            background: linear-gradient(145deg, #0a1e2e 0%, #0f2d42 50%, #0d2135 100%);
            border-radius: var(--qb-radius-lg);
            padding: 52px 44px;
            color: var(--qb-text-light);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 36px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .qb-download-section::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(16,185,129,0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .qb-download-section .dl-title {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .qb-download-section .dl-desc {
            color: #94a3b8;
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .qb-download-section .dl-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .qb-download-visual {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .qb-download-visual img {
            max-width: 220px;
            margin: 0 auto;
            border-radius: var(--qb-radius);
            box-shadow: 0 20px 50px rgba(10, 30, 46, 0.3);
        }
        .qb-download-visual .dl-badge {
            margin-top: 16px;
            font-size: 12px;
            color: #94a3b8;
            letter-spacing: 0.5px;
        }
        @media (max-width: 768px) {
            .qb-download-section {
                grid-template-columns: 1fr;
                padding: 32px 24px;
                text-align: center;
            }
        }

        /* ============ FAQ ============ */
        .qb-faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }
        .qb-faq-item {
            background: var(--qb-surface);
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--qb-transition);
        }
        .qb-faq-item:hover {
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-faq-item .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--qb-primary);
            transition: color var(--qb-transition);
            user-select: none;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--qb-font);
        }
        .qb-faq-item .faq-question:hover {
            color: var(--qb-accent-dark);
        }
        .qb-faq-item .faq-question .faq-icon {
            font-size: 14px;
            color: var(--qb-accent);
            transition: transform var(--qb-transition);
            flex-shrink: 0;
        }
        .qb-faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .qb-faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }
        .qb-faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .qb-faq-item .faq-answer p {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.8;
            margin: 0;
        }

        /* ============ 留资下载表单 ============ */
        .qb-form-section {
            background: var(--qb-surface-alt);
        }
        .qb-form-card {
            background: var(--qb-surface);
            border-radius: var(--qb-radius-lg);
            padding: 40px 36px;
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            max-width: 620px;
            margin: 0 auto;
        }
        .qb-form-group {
            margin-bottom: 18px;
        }
        .qb-form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--qb-primary);
            margin-bottom: 6px;
            display: block;
        }
        .qb-form-group input,
        .qb-form-group select,
        .qb-form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 1.5px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-family: var(--qb-font);
            transition: all var(--qb-transition);
            background: #fff;
            color: var(--qb-text);
        }
        .qb-form-group input:focus,
        .qb-form-group select:focus,
        .qb-form-group textarea:focus {
            outline: none;
            border-color: var(--qb-accent);
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }
        .qb-form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .qb-form-hint {
            font-size: 12px;
            color: var(--qb-text-weak);
            margin-top: 12px;
            text-align: center;
        }

        /* ============ Footer ============ */
        .qb-footer {
            background: #081420;
            color: #94a3b8;
            padding: 56px 0 0;
            font-size: 14px;
        }
        .qb-footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .qb-footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .qb-footer-brand .footer-desc {
            color: #64748b;
            font-size: 13px;
            line-height: 1.8;
            max-width: 320px;
        }
        .qb-footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #e2e8f0;
            margin-bottom: 16px;
        }
        .qb-footer-col ul li {
            margin-bottom: 10px;
        }
        .qb-footer-col ul li a {
            color: #64748b;
            font-size: 13px;
            transition: color var(--qb-transition);
        }
        .qb-footer-col ul li a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-bottom {
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: #475569;
        }
        .qb-footer-bottom a {
            color: #64748b;
        }
        .qb-footer-bottom a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-bottom .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        @media (max-width: 992px) {
            .qb-footer-top {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 560px) {
            .qb-footer-top {
                grid-template-columns: 1fr;
            }
            .qb-footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .qb-footer-bottom .footer-beian {
                justify-content: center;
            }
        }

        /* ============ 响应式辅助 ============ */
        .text-center-mobile {
            text-align: center;
        }
        @media (max-width: 768px) {
            .qb-section-header.center {
                text-align: left;
            }
            .qb-section-header.center .section-subtitle {
                margin-left: 0;
            }
        }

/* roulang page: category2 */
:root {
            --qb-primary: #0a1e2e;
            --qb-primary-light: #0f2d42;
            --qb-accent: #10b981;
            --qb-accent-dark: #059669;
            --qb-accent-glow: #34d399;
            --qb-warm: #f59e0b;
            --qb-surface: #ffffff;
            --qb-surface-alt: #f1f5f9;
            --qb-surface-dark: #0d2135;
            --qb-text: #1e293b;
            --qb-text-weak: #64748b;
            --qb-text-light: #e2e8f0;
            --qb-border: #e2e8f0;
            --qb-border-dark: #1e3a4d;
            --qb-radius: 16px;
            --qb-radius-sm: 10px;
            --qb-radius-lg: 24px;
            --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
            --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
            --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
            --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --qb-nav-height: 76px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--qb-font);
            color: var(--qb-text);
            background-color: var(--qb-surface);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--qb-transition);
        }
        a:hover {
            color: var(--qb-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(16, 185, 129, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: var(--qb-font);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--qb-text-weak);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ NAVBAR ============ */
        .qb-navbar {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--qb-border);
            height: var(--qb-nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--qb-transition);
        }
        .qb-navbar.scrolled {
            box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
        }
        .qb-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .qb-nav-left,
        .qb-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .qb-nav-left {
            justify-content: flex-end;
        }
        .qb-nav-right {
            justify-content: flex-start;
        }
        .qb-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            white-space: nowrap;
            position: relative;
        }
        .qb-nav-links a:hover {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.06);
        }
        .qb-nav-links a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .qb-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--qb-accent);
            border-radius: 3px;
        }
        .qb-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .qb-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }
        .qb-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--qb-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--qb-transition);
        }
        .qb-mobile-toggle:hover {
            background: var(--qb-surface-alt);
        }
        .qb-mobile-menu {
            display: none;
            position: absolute;
            top: var(--qb-nav-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--qb-border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            box-shadow: 0 12px 32px rgba(10, 30, 46, 0.1);
            z-index: 1029;
        }
        .qb-mobile-menu a {
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
        }
        .qb-mobile-menu a:hover,
        .qb-mobile-menu a.active {
            background: rgba(16, 185, 129, 0.08);
            color: var(--qb-accent-dark);
        }
        @media (max-width: 1024px) {
            .qb-nav-left,
            .qb-nav-right {
                display: none;
            }
            .qb-nav-inner {
                justify-content: space-between;
            }
            .qb-logo {
                margin: 0 auto;
            }
            .qb-mobile-toggle {
                display: block;
                position: absolute;
                right: 16px;
                top: 50%;
                transform: translateY(-50%);
            }
            .qb-mobile-menu.show {
                display: flex;
            }
        }

        /* ============ INNER HERO ============ */
        .qb-inner-hero {
            position: relative;
            background: var(--qb-primary);
            padding: 80px 0 70px;
            overflow: hidden;
            color: #fff;
        }
        .qb-inner-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }
        .qb-inner-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(transparent, rgba(10, 30, 46, 0.7));
            pointer-events: none;
        }
        .qb-inner-hero .container {
            position: relative;
            z-index: 1;
        }
        .qb-inner-hero .section-badge {
            background: rgba(16, 185, 129, 0.2);
            color: var(--qb-accent-glow);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-inner-hero h1 {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .qb-inner-hero h1 .accent {
            color: var(--qb-accent-glow);
        }
        .qb-inner-hero .hero-desc {
            font-size: 17px;
            color: rgba(226, 232, 240, 0.85);
            max-width: 680px;
            line-height: 1.85;
        }
        .qb-inner-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px 40px;
            margin-top: 36px;
        }
        .qb-inner-hero .hero-stat {
            text-align: left;
        }
        .qb-inner-hero .hero-stat .num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
        }
        .qb-inner-hero .hero-stat .label {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            margin-top: 4px;
        }

        /* ============ GENERIC SECTION ============ */
        .qb-section {
            padding: 80px 0;
        }
        .qb-section.alt {
            background: var(--qb-surface-alt);
        }
        .qb-section.dark {
            background: var(--qb-surface-dark);
            color: #fff;
        }
        .qb-section.dark .section-title {
            color: #fff;
        }
        .qb-section.dark .section-subtitle {
            color: rgba(226, 232, 240, 0.75);
        }

        /* ============ BASKETBALL SPECIFIC CARDS ============ */
        .qb-data-card {
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            padding: 24px;
            transition: all var(--qb-transition);
            height: 100%;
            box-shadow: var(--qb-shadow);
        }
        .qb-data-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--qb-shadow-hover);
            border-color: rgba(16, 185, 129, 0.25);
        }
        .qb-data-card .icon-box {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
        }
        .qb-data-card h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }
        .qb-data-card p {
            font-size: 15px;
            color: var(--qb-text-weak);
            margin-bottom: 0;
            line-height: 1.75;
        }

        /* ============ LIVE MATCH STRIP ============ */
        .qb-match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            padding: 18px 22px;
            margin-bottom: 12px;
            transition: all var(--qb-transition);
            flex-wrap: wrap;
        }
        .qb-match-row:hover {
            border-color: rgba(16, 185, 129, 0.3);
            box-shadow: var(--qb-shadow);
        }
        .qb-match-league {
            font-size: 12px;
            font-weight: 700;
            color: var(--qb-text-weak);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            min-width: 80px;
        }
        .qb-match-teams {
            display: flex;
            align-items: center;
            gap: 16px;
            flex: 1;
            min-width: 200px;
        }
        .qb-match-team {
            font-size: 15px;
            font-weight: 600;
            color: var(--qb-text);
        }
        .qb-match-score {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: -0.5px;
            min-width: 70px;
            text-align: center;
        }
        .qb-match-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(245, 158, 11, 0.12);
            color: #b45309;
        }
        .qb-match-status.live {
            background: rgba(16, 185, 129, 0.12);
            color: var(--qb-accent-dark);
        }
        .qb-match-status .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            animation: qb-pulse 1.5s ease-in-out infinite;
        }
        @keyframes qb-pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        /* ============ BTN ============ */
        .qb-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--qb-transition);
            letter-spacing: 0.3px;
            text-decoration: none;
            line-height: 1.5;
        }
        .qb-btn-accent {
            background: var(--qb-accent);
            color: #fff;
            box-shadow: var(--qb-shadow-glow);
        }
        .qb-btn-accent:hover {
            background: var(--qb-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(16, 185, 129, 0.28);
        }
        .qb-btn-outline {
            background: transparent;
            color: var(--qb-primary);
            border: 2px solid var(--qb-border);
        }
        .qb-btn-outline:hover {
            border-color: var(--qb-accent);
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.04);
        }
        .qb-btn-light {
            background: #fff;
            color: var(--qb-primary);
        }
        .qb-btn-light:hover {
            background: var(--qb-surface-alt);
            color: var(--qb-primary);
            transform: translateY(-2px);
        }

        /* ============ FEATURES GRID ============ */
        .qb-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .qb-feature-card {
            background: #fff;
            border-radius: var(--qb-radius);
            padding: 28px;
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            transition: all var(--qb-transition);
        }
        .qb-feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--qb-shadow-hover);
        }

        /* ============ STATS BAND ============ */
        .qb-stats-band {
            background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-primary-light) 100%);
            border-radius: var(--qb-radius-lg);
            padding: 40px 36px;
            color: #fff;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }
        .qb-stat-item {
            text-align: center;
        }
        .qb-stat-item .num {
            font-size: 40px;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--qb-accent-glow);
        }
        .qb-stat-item .label {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            margin-top: 4px;
        }

        /* ============ FAQ ============ */
        .qb-faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .qb-faq-item {
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--qb-transition);
        }
        .qb-faq-item:hover {
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-faq-q {
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            color: var(--qb-text);
            font-family: var(--qb-font);
        }
        .qb-faq-q .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: transform var(--qb-transition);
        }
        .qb-faq-q.active .icon {
            transform: rotate(180deg);
            background: var(--qb-accent);
            color: #fff;
        }
        .qb-faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--qb-text-weak);
            font-size: 15px;
            line-height: 1.8;
        }
        .qb-faq-a.open {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ============ CTA ============ */
        .qb-cta-section {
            padding: 80px 0;
            background: var(--qb-primary);
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .qb-cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            opacity: 0.1;
        }
        .qb-cta-card {
            position: relative;
            z-index: 1;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--qb-radius-lg);
            padding: 48px 40px;
            backdrop-filter: blur(10px);
            text-align: center;
        }
        .qb-cta-card h2 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 14px;
        }
        .qb-cta-card p {
            font-size: 16px;
            color: rgba(226, 232, 240, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        /* ============ FOOTER ============ */
        .qb-footer {
            background: #081726;
            color: rgba(226, 232, 240, 0.8);
            padding: 60px 0 28px;
        }
        .qb-footer a {
            color: rgba(226, 232, 240, 0.8);
            transition: color var(--qb-transition);
        }
        .qb-footer a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .qb-footer-brand {
            max-width: 320px;
        }
        .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(226, 232, 240, 0.65);
            margin-bottom: 0;
        }
        .qb-footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .qb-footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-footer-col li {
            margin-bottom: 10px;
        }
        .qb-footer-col a {
            font-size: 14px;
        }
        .qb-footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: rgba(226, 232, 240, 0.5);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
            align-items: center;
        }
        .footer-beian a {
            font-size: 13px;
            color: rgba(226, 232, 240, 0.5);
        }
        .footer-beian a:hover {
            color: var(--qb-accent-glow);
        }

        @media (max-width: 992px) {
            .qb-footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .qb-footer-brand {
                grid-column: 1 / -1;
                max-width: 100%;
            }
            .qb-section {
                padding: 60px 0;
            }
        }
        @media (max-width: 576px) {
            .qb-footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .qb-footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-beian {
                justify-content: center;
            }
            .qb-match-row {
                padding: 14px 16px;
            }
            .qb-match-league {
                min-width: 60px;
                font-size: 11px;
            }
            .qb-match-teams {
                gap: 8px;
                min-width: 140px;
            }
            .qb-match-team {
                font-size: 13px;
            }
            .qb-match-score {
                font-size: 18px;
                min-width: 50px;
            }
            .qb-section {
                padding: 48px 0;
            }
            .qb-inner-hero {
                padding: 56px 0 48px;
            }
            .qb-inner-hero .hero-stats {
                gap: 16px 28px;
            }
            .qb-inner-hero .hero-stat .num {
                font-size: 28px;
            }
        }

/* roulang page: category3 */
:root {
            --qb-primary: #0a1e2e;
            --qb-primary-light: #0f2d42;
            --qb-accent: #10b981;
            --qb-accent-dark: #059669;
            --qb-accent-glow: #34d399;
            --qb-warm: #f59e0b;
            --qb-surface: #ffffff;
            --qb-surface-alt: #f1f5f9;
            --qb-surface-dark: #0d2135;
            --qb-text: #1e293b;
            --qb-text-weak: #64748b;
            --qb-text-light: #e2e8f0;
            --qb-border: #e2e8f0;
            --qb-border-dark: #1e3a4d;
            --qb-radius: 16px;
            --qb-radius-sm: 10px;
            --qb-radius-lg: 24px;
            --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
            --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
            --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
            --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --qb-nav-height: 76px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--qb-font);
            color: var(--qb-text);
            background-color: var(--qb-surface);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--qb-transition);
        }
        a:hover {
            color: var(--qb-accent-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(16, 185, 129, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }

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

        button {
            font-family: var(--qb-font);
        }

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

        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            color: var(--qb-primary);
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--qb-text-weak);
            max-width: 720px;
            line-height: 1.85;
        }

        .section-header {
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* NAVBAR */
        .qb-navbar {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--qb-border);
            height: var(--qb-nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--qb-transition);
        }
        .qb-navbar.scrolled {
            box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
        }
        .qb-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .qb-nav-left,
        .qb-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .qb-nav-left {
            justify-content: flex-end;
        }
        .qb-nav-right {
            justify-content: flex-start;
        }
        .qb-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            white-space: nowrap;
            position: relative;
        }
        .qb-nav-links a:hover {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.06);
        }
        .qb-nav-links a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .qb-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--qb-accent);
            border-radius: 3px;
        }
        .qb-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .qb-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .qb-mobile-toggle {
            display: none;
            background: none;
            border: 0;
            font-size: 24px;
            color: var(--qb-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: background var(--qb-transition);
        }
        .qb-mobile-toggle:hover {
            background: var(--qb-surface-alt);
        }
        .qb-mobile-menu {
            display: none;
            position: fixed;
            top: var(--qb-nav-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--qb-border);
            box-shadow: 0 12px 32px rgba(10, 30, 46, 0.12);
            z-index: 1029;
            padding: 16px;
            flex-direction: column;
            gap: 6px;
            max-height: calc(100vh - var(--qb-nav-height));
            overflow-y: auto;
        }
        .qb-mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            display: block;
        }
        .qb-mobile-menu a:hover,
        .qb-mobile-menu a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.08);
        }
        .qb-mobile-menu a.active {
            font-weight: 600;
        }
        .qb-mobile-menu.open {
            display: flex;
        }

        /* HERO */
        .qb-hero {
            background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
            padding: 72px 0 80px;
            position: relative;
            overflow: hidden;
        }
        .qb-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .qb-hero-content {
            position: relative;
            z-index: 1;
        }
        .qb-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border: 1px solid rgba(16, 185, 129, 0.25);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .qb-hero-title {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--qb-primary);
            margin-bottom: 20px;
            line-height: 1.2;
        }
        .qb-hero-title span {
            color: var(--qb-accent-dark);
            position: relative;
            white-space: nowrap;
        }
        .qb-hero-desc {
            font-size: 17px;
            color: var(--qb-text-weak);
            max-width: 620px;
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .qb-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            margin-bottom: 36px;
        }
        .qb-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: 0;
            cursor: pointer;
            transition: all var(--qb-transition);
            white-space: nowrap;
        }
        .qb-btn-primary {
            background: var(--qb-accent);
            color: #fff;
            box-shadow: var(--qb-shadow-glow);
        }
        .qb-btn-primary:hover {
            background: var(--qb-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(16, 185, 129, 0.28);
        }
        .qb-btn-outline {
            background: transparent;
            color: var(--qb-primary);
            border: 1.5px solid var(--qb-border);
        }
        .qb-btn-outline:hover {
            border-color: var(--qb-accent);
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.04);
            transform: translateY(-2px);
        }
        .qb-hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 24px;
            border-top: 1px solid var(--qb-border);
        }
        .qb-hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .qb-hero-stat .stat-value {
            font-size: 28px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: -0.5px;
        }
        .qb-hero-stat .stat-label {
            font-size: 13px;
            color: var(--qb-text-weak);
            font-weight: 500;
        }
        .qb-hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .qb-hero-visual img {
            border-radius: var(--qb-radius-lg);
            box-shadow: var(--qb-shadow-hover);
            width: 100%;
            max-width: 520px;
            object-fit: cover;
            aspect-ratio: 4/3;
        }
        .qb-hero-visual .floating-badge {
            position: absolute;
            bottom: 24px;
            left: -20px;
            background: #fff;
            border-radius: var(--qb-radius);
            box-shadow: var(--qb-shadow-hover);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid var(--qb-border);
        }
        .qb-hero-visual .floating-badge .fb-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        .qb-hero-visual .floating-badge .fb-text .fb-label {
            font-size: 12px;
            color: var(--qb-text-weak);
        }
        .qb-hero-visual .floating-badge .fb-text .fb-value {
            font-size: 16px;
            font-weight: 700;
            color: var(--qb-primary);
        }

        /* Section spacing */
        .qb-section {
            padding: 72px 0;
        }
        .qb-section-alt {
            background: var(--qb-surface-alt);
        }
        .qb-section-dark {
            background: var(--qb-surface-dark);
            color: var(--qb-text-light);
        }
        .qb-section-dark .section-title {
            color: #fff;
        }
        .qb-section-dark .section-subtitle {
            color: rgba(226, 232, 240, 0.75);
        }

        /* Feature cards */
        .qb-card {
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            padding: 28px;
            height: 100%;
            transition: all var(--qb-transition);
            position: relative;
            overflow: hidden;
        }
        .qb-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            transition: all var(--qb-transition);
        }
        .qb-card:hover .qb-card-icon {
            background: var(--qb-accent);
            color: #fff;
            transform: scale(1.05);
        }
        .qb-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 10px;
        }
        .qb-card-text {
            font-size: 14.5px;
            color: var(--qb-text-weak);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Data badge */
        .qb-data-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .qb-data-badge.green {
            background: rgba(16, 185, 129, 0.12);
            color: var(--qb-accent-dark);
        }
        .qb-data-badge.amber {
            background: rgba(245, 158, 11, 0.12);
            color: #b45309;
        }
        .qb-data-badge.blue {
            background: rgba(59, 130, 246, 0.12);
            color: #1d4ed8;
        }

        /* Process steps */
        .qb-step {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--qb-border);
        }
        .qb-step:last-child {
            border-bottom: 0;
        }
        .qb-step-num {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--qb-primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .qb-step-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 4px;
        }
        .qb-step-body p {
            font-size: 14.5px;
            color: var(--qb-text-weak);
            margin-bottom: 0;
            line-height: 1.8;
        }

        /* FAQ */
        .qb-faq-item {
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--qb-transition);
        }
        .qb-faq-item:hover {
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15.5px;
            color: var(--qb-primary);
            background: none;
            border: 0;
            width: 100%;
            text-align: left;
            gap: 16px;
            transition: color var(--qb-transition);
        }
        .qb-faq-question:hover {
            color: var(--qb-accent-dark);
        }
        .qb-faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--qb-surface-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--qb-text-weak);
            transition: all var(--qb-transition);
        }
        .qb-faq-item.open .qb-faq-question .faq-icon {
            background: var(--qb-accent);
            color: #fff;
            transform: rotate(180deg);
        }
        .qb-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 22px;
        }
        .qb-faq-item.open .qb-faq-answer {
            max-height: 400px;
            padding-bottom: 20px;
        }
        .qb-faq-answer p {
            font-size: 14.5px;
            color: var(--qb-text-weak);
            line-height: 1.85;
            margin-bottom: 0;
        }

        /* CTA */
        .qb-cta {
            background: linear-gradient(135deg, var(--qb-primary) 0%, #0f2d42 100%);
            border-radius: var(--qb-radius-lg);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .qb-cta::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.3) 0%, transparent 70%);
            border-radius: 50%;
        }
        .qb-cta h3 {
            font-size: clamp(22px, 3vw, 30px);
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .qb-cta p {
            font-size: 15.5px;
            color: rgba(226, 232, 240, 0.85);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .qb-cta .qb-btn {
            position: relative;
            z-index: 1;
        }
        .qb-cta .qb-btn-outline {
            border-color: rgba(255, 255, 255, 0.3);
            color: #fff;
        }
        .qb-cta .qb-btn-outline:hover {
            border-color: var(--qb-accent-glow);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        /* Comparison table */
        .qb-compare-row {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            padding: 16px 20px;
            border-bottom: 1px solid var(--qb-border);
            font-size: 14.5px;
        }
        .qb-compare-row.header {
            background: var(--qb-primary);
            color: #fff;
            font-weight: 700;
            border-radius: var(--qb-radius-sm) var(--qb-radius-sm) 0 0;
            border-bottom: 0;
        }
        .qb-compare-row:not(.header):hover {
            background: var(--qb-surface-alt);
        }

        /* FOOTER */
        .qb-footer {
            background: var(--qb-primary);
            color: var(--qb-text-light);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .qb-footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--qb-border-dark);
        }
        .qb-footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .qb-footer-brand .footer-desc {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            line-height: 1.85;
            margin-bottom: 0;
        }
        .qb-footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .qb-footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .qb-footer-col ul a {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            transition: color var(--qb-transition);
        }
        .qb-footer-col ul a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding: 20px 0 28px;
            font-size: 13px;
            color: rgba(226, 232, 240, 0.6);
        }
        .qb-footer-bottom .footer-beian {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }
        .qb-footer-bottom .footer-beian a {
            color: rgba(226, 232, 240, 0.7);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .qb-footer-bottom .footer-beian a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-bottom .footer-beian span {
            white-space: nowrap;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .qb-nav-links a {
                padding: 10px 10px;
                font-size: 13px;
            }
            .qb-logo {
                font-size: 18px;
            }
            .qb-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .qb-hero {
                padding: 56px 0 64px;
            }
            .qb-section {
                padding: 56px 0;
            }
            .qb-hero-visual .floating-badge {
                left: -10px;
                padding: 12px 16px;
            }
        }

        @media (max-width: 768px) {
            .qb-nav-inner {
                flex-wrap: nowrap;
                gap: 10px;
            }
            .qb-nav-left,
            .qb-nav-right {
                display: none;
            }
            .qb-nav-inner {
                justify-content: space-between;
            }
            .qb-logo {
                flex: 1;
                justify-content: center;
            }
            .qb-mobile-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .qb-hero {
                padding: 48px 0 56px;
            }
            .qb-hero-title {
                font-size: clamp(28px, 7vw, 38px);
            }
            .qb-hero-desc {
                font-size: 15px;
            }
            .qb-hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .qb-hero-visual {
                margin-top: 32px;
            }
            .qb-hero-visual .floating-badge {
                position: static;
                margin-top: 12px;
                display: inline-flex;
            }
            .qb-section {
                padding: 48px 0;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .qb-card {
                padding: 20px;
            }
            .qb-footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .qb-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .qb-cta {
                padding: 32px 24px;
            }
            .qb-compare-row {
                grid-template-columns: 1fr 1fr 1fr;
                padding: 12px 14px;
                font-size: 13px;
            }
        }

        @media (max-width: 520px) {
            .qb-hero {
                padding: 36px 0 44px;
            }
            .qb-hero-stats {
                gap: 16px;
                flex-wrap: wrap;
            }
            .qb-hero-stat .stat-value {
                font-size: 22px;
            }
            .qb-hero-actions {
                width: 100%;
            }
            .qb-hero-actions .qb-btn {
                width: 100%;
                justify-content: center;
            }
            .qb-section {
                padding: 40px 0;
            }
            .qb-card {
                padding: 18px;
            }
            .qb-footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .qb-footer-bottom {
                gap: 10px;
            }
            .qb-footer-bottom .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .qb-step {
                flex-direction: column;
                gap: 10px;
            }
            .qb-compare-row {
                grid-template-columns: 1fr 1fr 1fr;
                padding: 10px 8px;
                font-size: 11.5px;
            }
            .qb-cta {
                border-radius: var(--qb-radius);
                padding: 24px 18px;
            }
            .qb-hero-visual img {
                aspect-ratio: 16/10;
                object-position: center;
            }
        }

/* roulang page: category1 */
:root {
            --qb-primary: #0a1e2e;
            --qb-primary-light: #0f2d42;
            --qb-accent: #10b981;
            --qb-accent-dark: #059669;
            --qb-accent-glow: #34d399;
            --qb-warm: #f59e0b;
            --qb-surface: #ffffff;
            --qb-surface-alt: #f1f5f9;
            --qb-surface-dark: #0d2135;
            --qb-text: #1e293b;
            --qb-text-weak: #64748b;
            --qb-text-light: #e2e8f0;
            --qb-border: #e2e8f0;
            --qb-border-dark: #1e3a4d;
            --qb-radius: 16px;
            --qb-radius-sm: 10px;
            --qb-radius-lg: 24px;
            --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
            --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
            --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
            --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --qb-nav-height: 76px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--qb-font);
            color: var(--qb-text);
            background-color: var(--qb-surface);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--qb-transition);
        }
        a:hover {
            color: var(--qb-accent-dark);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(16, 185, 129, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: var(--qb-font);
        }
        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ============ 通用组件 ============ */
        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }
        .section-badge.warm {
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
            border-color: rgba(245, 158, 11, 0.2);
        }
        .section-badge.dark {
            background: rgba(16, 185, 129, 0.15);
            color: var(--qb-accent-glow);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            color: var(--qb-primary);
        }
        .section-title.light {
            color: #fff;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--qb-text-weak);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-subtitle.light {
            color: rgba(226, 232, 240, 0.8);
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--qb-surface-alt);
        }
        .section-dark {
            background: var(--qb-primary);
        }

        /* ============ 按钮 ============ */
        .qb-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--qb-transition);
            letter-spacing: 0.3px;
        }
        .qb-btn-primary {
            background: var(--qb-accent);
            color: #fff;
            box-shadow: var(--qb-shadow-glow);
        }
        .qb-btn-primary:hover {
            background: var(--qb-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--qb-shadow-hover);
        }
        .qb-btn-outline {
            background: transparent;
            color: var(--qb-accent);
            border: 2px solid var(--qb-accent);
        }
        .qb-btn-outline:hover {
            background: rgba(16, 185, 129, 0.08);
            color: var(--qb-accent-dark);
            transform: translateY(-2px);
        }
        .qb-btn-light {
            background: #fff;
            color: var(--qb-primary);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }
        .qb-btn-light:hover {
            background: var(--qb-accent-glow);
            color: var(--qb-primary);
            transform: translateY(-2px);
        }
        .qb-btn-lg {
            padding: 16px 36px;
            font-size: 16px;
            border-radius: 14px;
        }

        /* ============ NAVBAR ============ */
        .qb-navbar {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--qb-border);
            height: var(--qb-nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--qb-transition);
        }
        .qb-navbar.scrolled {
            box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
        }
        .qb-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .qb-nav-left,
        .qb-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .qb-nav-left {
            justify-content: flex-end;
        }
        .qb-nav-right {
            justify-content: flex-start;
        }
        .qb-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            white-space: nowrap;
            position: relative;
        }
        .qb-nav-links a:hover {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.06);
        }
        .qb-nav-links a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .qb-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--qb-accent);
            border-radius: 3px;
        }
        .qb-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .qb-logo:hover {
            color: var(--qb-primary);
        }
        .qb-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .qb-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--qb-primary);
            cursor: pointer;
            padding: 8px;
            border-radius: 8px;
            transition: all var(--qb-transition);
        }
        .qb-mobile-toggle:hover {
            background: rgba(16, 185, 129, 0.08);
            color: var(--qb-accent-dark);
        }
        .qb-mobile-menu {
            display: none;
            position: absolute;
            top: var(--qb-nav-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--qb-border);
            box-shadow: 0 16px 40px rgba(10, 30, 46, 0.12);
            padding: 16px 24px;
            flex-direction: column;
            gap: 8px;
            z-index: 1029;
        }
        .qb-mobile-menu.show {
            display: flex;
        }
        .qb-mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
        }
        .qb-mobile-menu a:hover {
            background: rgba(16, 185, 129, 0.06);
            color: var(--qb-accent-dark);
        }
        .qb-mobile-menu a.active {
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            font-weight: 600;
        }

        /* ============ HERO 内页 ============ */
        .qb-hero-inner {
            position: relative;
            background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-primary-light) 60%, #0b2838 100%);
            color: #fff;
            padding: 80px 0 70px;
            overflow: hidden;
        }
        .qb-hero-inner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 1;
        }
        .qb-hero-inner::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(10, 30, 46, 0.9) 0%, rgba(15, 45, 66, 0.7) 50%, rgba(10, 30, 46, 0.55) 100%);
            z-index: 2;
        }
        .qb-hero-inner .container {
            position: relative;
            z-index: 3;
        }
        .qb-hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .qb-hero-content .section-badge {
            margin-bottom: 16px;
        }
        .qb-hero-content h1 {
            font-size: clamp(32px, 5vw, 44px);
            font-weight: 800;
            letter-spacing: -0.8px;
            margin-bottom: 20px;
            line-height: 1.25;
            color: #fff;
        }
        .qb-hero-desc {
            font-size: 17px;
            color: rgba(226, 232, 240, 0.85);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 520px;
        }
        .qb-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .qb-hero-panel {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--qb-radius-lg);
            padding: 28px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.3);
        }
        .qb-hero-panel-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--qb-accent-glow);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.5px;
        }
        .qb-live-score-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            gap: 12px;
            flex-wrap: wrap;
        }
        .qb-live-score-item:last-child {
            border-bottom: none;
        }
        .qb-live-score-meta {
            display: flex;
            flex-direction: column;
            gap: 2px;
            min-width: 70px;
        }
        .qb-live-score-league {
            font-size: 12px;
            color: var(--qb-accent-glow);
            font-weight: 500;
        }
        .qb-live-score-time {
            font-size: 11px;
            color: rgba(226, 232, 240, 0.6);
        }
        .qb-live-score-teams {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
            font-size: 14px;
            font-weight: 500;
        }
        .qb-live-score-teams span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-live-score-teams .team-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--qb-accent);
            display: inline-block;
            flex-shrink: 0;
        }
        .qb-live-score-result {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            min-width: 50px;
            text-align: center;
            background: rgba(16, 185, 129, 0.15);
            border-radius: 8px;
            padding: 6px 10px;
            letter-spacing: 1px;
        }
        .qb-live-score-status {
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 50px;
            font-weight: 600;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .qb-live-score-status.live {
            background: rgba(245, 158, 11, 0.25);
            color: #fbbf24;
            border: 1px solid rgba(245, 158, 11, 0.4);
        }
        .qb-live-score-status.finished {
            background: rgba(100, 116, 139, 0.3);
            color: #cbd5e1;
            border: 1px solid rgba(100, 116, 139, 0.4);
        }
        .qb-hero-panel-footer {
            margin-top: 20px;
            text-align: center;
        }
        .qb-hero-panel-footer a {
            color: var(--qb-accent-glow);
            font-size: 13px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .qb-hero-panel-footer a:hover {
            color: #fff;
        }

        /* ============ 功能区块 ============ */
        .qb-feature-split {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .qb-feature-split.reverse {
            direction: rtl;
        }
        .qb-feature-split.reverse > * {
            direction: ltr;
        }
        .qb-feature-image-wrap {
            position: relative;
            border-radius: var(--qb-radius-lg);
            overflow: hidden;
            box-shadow: var(--qb-shadow-hover);
        }
        .qb-feature-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
            transition: transform 0.5s ease;
        }
        .qb-feature-image-wrap:hover img {
            transform: scale(1.03);
        }
        .qb-feature-image-wrap::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(10, 30, 46, 0.4), transparent);
        }
        .qb-feature-list {
            list-style: none;
            padding: 0;
            margin: 20px 0 0;
        }
        .qb-feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 15px;
            color: var(--qb-text);
            line-height: 1.7;
        }
        .qb-feature-list li .feature-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(16, 185, 129, 0.12);
            color: var(--qb-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 13px;
            margin-top: 2px;
        }

        /* ============ 赛事数据面板 ============ */
        .qb-panel-section {
            background: var(--qb-surface-dark);
            border-radius: var(--qb-radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }
        .qb-panel-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(16, 185, 129, 0.08);
        }
        .qb-match-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 16px;
            margin-top: 32px;
        }
        .qb-match-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 18px 20px;
            transition: all var(--qb-transition);
            cursor: pointer;
        }
        .qb-match-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(16, 185, 129, 0.35);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
        }
        .qb-match-card-head {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
            font-size: 12px;
            color: rgba(226, 232, 240, 0.7);
        }
        .qb-match-card-league {
            color: var(--qb-accent-glow);
            font-weight: 600;
        }
        .qb-match-card-status {
            padding: 3px 10px;
            border-radius: 50px;
            font-size: 11px;
            font-weight: 600;
        }
        .qb-match-card-status.live {
            background: rgba(245, 158, 11, 0.2);
            color: #fbbf24;
        }
        .qb-match-card-status.upcoming {
            background: rgba(16, 185, 129, 0.2);
            color: var(--qb-accent-glow);
        }
        .qb-match-card-status.done {
            background: rgba(100, 116, 139, 0.3);
            color: #cbd5e1;
        }
        .qb-match-card-teams {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 15px;
            font-weight: 500;
            color: #fff;
        }
        .qb-match-card-teams .team-row {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .qb-match-card-teams .team-row .team-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--qb-accent);
            flex-shrink: 0;
        }
        .qb-match-card-score {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
        }
        .qb-match-card-score .score-main {
            background: rgba(16, 185, 129, 0.2);
            border-radius: 8px;
            padding: 4px 14px;
        }

        /* ============ 联赛覆盖 ============ */
        .qb-league-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
            gap: 12px;
            margin-top: 24px;
        }
        .qb-league-tag {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 16px;
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--qb-transition);
            cursor: default;
        }
        .qb-league-tag:hover {
            border-color: var(--qb-accent);
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.12);
            transform: translateY(-2px);
        }
        .qb-league-tag i {
            color: var(--qb-accent);
            font-size: 12px;
        }
        .qb-stats-row {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 28px;
        }
        .qb-stat-block {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .qb-stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--qb-primary);
            line-height: 1.2;
        }
        .qb-stat-label {
            font-size: 14px;
            color: var(--qb-text-weak);
        }

        /* ============ 全宽横幅 ============ */
        .qb-banner-wide {
            position: relative;
            border-radius: var(--qb-radius-lg);
            overflow: hidden;
            padding: 72px 48px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
        }
        .qb-banner-wide::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(10, 30, 46, 0.92) 0%, rgba(15, 45, 66, 0.75) 60%, rgba(10, 30, 46, 0.55) 100%);
        }
        .qb-banner-wide > * {
            position: relative;
            z-index: 2;
        }
        .qb-banner-wide h2 {
            font-size: clamp(24px, 3.5vw, 32px);
            font-weight: 800;
            margin-bottom: 14px;
        }
        .qb-banner-wide p {
            font-size: 16px;
            color: rgba(226, 232, 240, 0.85);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        /* ============ 场景非对称 Grid ============ */
        .qb-scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
        }
        .qb-scene-card {
            background: #fff;
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius);
            padding: 28px 24px;
            transition: all var(--qb-transition);
            box-shadow: var(--qb-shadow);
        }
        .qb-scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--qb-shadow-hover);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-scene-card .scene-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }
        .qb-scene-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--qb-primary);
        }
        .qb-scene-card p {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .qb-scene-card.large {
            grid-row: span 2;
            background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-primary-light) 100%);
            border-color: var(--qb-primary-light);
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .qb-scene-card.large .scene-icon {
            background: rgba(16, 185, 129, 0.2);
            color: var(--qb-accent-glow);
            width: 56px;
            height: 56px;
            font-size: 22px;
        }
        .qb-scene-card.large h3 {
            color: #fff;
            font-size: 22px;
        }
        .qb-scene-card.large p {
            color: rgba(226, 232, 240, 0.75);
        }

        /* ============ 流程步骤 ============ */
        .qb-steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
            counter-reset: step;
        }
        .qb-step-item {
            text-align: center;
            padding: 28px 20px;
            background: #fff;
            border-radius: var(--qb-radius);
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            position: relative;
            transition: all var(--qb-transition);
        }
        .qb-step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--qb-shadow-hover);
        }
        .qb-step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-accent-dark) 100%);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
        }
        .qb-step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 8px;
        }
        .qb-step-item p {
            font-size: 13px;
            color: var(--qb-text-weak);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ============ 深度内容区 ============ */
        .qb-deep-content {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 48px;
            align-items: start;
        }
        .qb-deep-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 16px;
            margin-top: 28px;
        }
        .qb-deep-text h3:first-child {
            margin-top: 0;
        }
        .qb-deep-text p {
            font-size: 15px;
            color: var(--qb-text-weak);
            line-height: 1.9;
            margin-bottom: 14px;
        }
        .qb-deep-side {
            background: var(--qb-surface-alt);
            border-radius: var(--qb-radius);
            padding: 28px 24px;
            border: 1px solid var(--qb-border);
        }
        .qb-deep-side h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 16px;
        }
        .qb-deep-side ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-deep-side ul li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--qb-border);
            font-size: 14px;
            color: var(--qb-text);
            line-height: 1.6;
        }
        .qb-deep-side ul li:last-child {
            border-bottom: none;
        }
        .qb-deep-side ul li i {
            color: var(--qb-accent);
            font-size: 14px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ============ FAQ ============ */
        .qb-faq-accordion .accordion-item {
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: 0 2px 12px rgba(10, 30, 46, 0.04);
            transition: all var(--qb-transition);
        }
        .qb-faq-accordion .accordion-item:hover {
            box-shadow: var(--qb-shadow);
            border-color: rgba(16, 185, 129, 0.25);
        }
        .qb-faq-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 15px;
            font-weight: 600;
            color: var(--qb-text);
            background: #fff;
            box-shadow: none;
            border-radius: var(--qb-radius-sm) !important;
            transition: all var(--qb-transition);
        }
        .qb-faq-accordion .accordion-button:not(.collapsed) {
            background: rgba(16, 185, 129, 0.06);
            color: var(--qb-accent-dark);
            box-shadow: none;
        }
        .qb-faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-faq-accordion .accordion-button::after {
            display: none;
        }
        .qb-faq-accordion .accordion-body {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .qb-cta-section {
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-accent-dark) 100%);
            border-radius: var(--qb-radius-lg);
            padding: 56px 48px;
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .qb-cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 20%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }
        .qb-cta-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: 15%;
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }
        .qb-cta-section > * {
            position: relative;
            z-index: 2;
        }
        .qb-cta-section h2 {
            font-size: clamp(24px, 3.5vw, 32px);
            font-weight: 800;
            margin-bottom: 14px;
        }
        .qb-cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }
        .qb-cta-section .qb-btn {
            background: #fff;
            color: var(--qb-accent-dark);
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .qb-cta-section .qb-btn:hover {
            background: var(--qb-primary);
            color: #fff;
        }

        /* ============ 品牌介绍 ============ */
        .qb-brand-intro {
            background: var(--qb-surface-alt);
            border-left: 4px solid var(--qb-accent);
            border-radius: 0 var(--qb-radius) var(--qb-radius) 0;
            padding: 28px 32px;
            font-size: 15px;
            color: var(--qb-text);
            line-height: 1.9;
        }
        .qb-brand-intro strong {
            color: var(--qb-primary);
        }

        /* ============ FOOTER ============ */
        .qb-footer {
            background: var(--qb-primary);
            color: rgba(226, 232, 240, 0.75);
            padding: 60px 0 24px;
            margin-top: 0;
        }
        .qb-footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--qb-border-dark);
        }
        .qb-footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.65);
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 360px;
        }
        .qb-footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }
        .qb-footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-footer-col ul li {
            margin-bottom: 10px;
        }
        .qb-footer-col ul li a {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.7);
            transition: all var(--qb-transition);
        }
        .qb-footer-col ul li a:hover {
            color: var(--qb-accent-glow);
            padding-left: 4px;
        }
        .qb-footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(226, 232, 240, 0.55);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .footer-beian a {
            color: rgba(226, 232, 240, 0.55);
        }
        .footer-beian a:hover {
            color: var(--qb-accent-glow);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .qb-hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .qb-feature-split {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .qb-feature-split.reverse {
                direction: ltr;
            }
            .qb-deep-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .qb-steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .qb-scene-grid {
                grid-template-columns: 1fr 1fr;
                grid-template-rows: auto;
            }
            .qb-scene-card.large {
                grid-row: span 1;
                grid-column: span 2;
            }
        }
        @media (max-width: 768px) {
            .qb-nav-left,
            .qb-nav-right {
                display: none;
            }
            .qb-logo {
                margin-right: auto;
            }
            .qb-mobile-toggle {
                display: block;
            }
            .qb-nav-inner {
                justify-content: space-between;
            }
            .section-padding {
                padding: 60px 0;
            }
            .section-padding-sm {
                padding: 40px 0;
            }
            .qb-steps-row {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .qb-step-item {
                padding: 20px 14px;
            }
            .qb-stats-row {
                gap: 24px;
            }
            .qb-stat-number {
                font-size: 28px;
            }
            .qb-footer-top {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .qb-panel-section {
                padding: 32px 20px;
            }
            .qb-banner-wide {
                padding: 48px 24px;
            }
            .qb-cta-section {
                padding: 40px 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .qb-hero-inner {
                padding: 48px 0 50px;
            }
            .qb-hero-content h1 {
                font-size: 26px;
            }
            .qb-hero-panel {
                padding: 18px 14px;
            }
            .qb-live-score-item {
                padding: 10px 0;
            }
            .qb-live-score-teams {
                font-size: 12px;
            }
            .qb-live-score-result {
                font-size: 16px;
                padding: 4px 8px;
                min-width: 38px;
            }
            .qb-hero-actions {
                flex-direction: column;
            }
            .qb-btn {
                width: 100%;
                justify-content: center;
            }
            .qb-steps-row {
                grid-template-columns: 1fr;
            }
            .qb-scene-grid {
                grid-template-columns: 1fr;
            }
            .qb-scene-card.large {
                grid-column: span 1;
            }
            .qb-footer-top {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .qb-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .qb-match-grid {
                grid-template-columns: 1fr;
            }
            .qb-league-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 24px;
            }
            .qb-brand-intro {
                padding: 20px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --qb-primary: #0a1e2e;
            --qb-primary-light: #0f2d42;
            --qb-accent: #10b981;
            --qb-accent-dark: #059669;
            --qb-accent-glow: #34d399;
            --qb-warm: #f59e0b;
            --qb-surface: #ffffff;
            --qb-surface-alt: #f1f5f9;
            --qb-surface-dark: #0d2135;
            --qb-text: #1e293b;
            --qb-text-weak: #64748b;
            --qb-text-light: #e2e8f0;
            --qb-border: #e2e8f0;
            --qb-border-dark: #1e3a4d;
            --qb-radius: 16px;
            --qb-radius-sm: 10px;
            --qb-radius-lg: 24px;
            --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
            --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
            --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
            --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --qb-nav-height: 76px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--qb-font);
            color: var(--qb-text);
            background-color: var(--qb-surface);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--qb-transition);
        }
        a:hover {
            color: var(--qb-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(16, 185, 129, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: var(--qb-font);
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }
        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            color: var(--qb-primary);
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--qb-text-weak);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-header {
            margin-bottom: 48px;
        }
        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }
        /* ============ NAVBAR ============ */
        .qb-navbar {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--qb-border);
            height: var(--qb-nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--qb-transition);
        }
        .qb-navbar.scrolled {
            box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
        }
        .qb-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .qb-nav-left,
        .qb-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .qb-nav-left {
            justify-content: flex-end;
        }
        .qb-nav-right {
            justify-content: flex-start;
        }
        .qb-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            white-space: nowrap;
            position: relative;
        }
        .qb-nav-links a:hover {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.06);
        }
        .qb-nav-links a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .qb-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--qb-accent);
            border-radius: 3px;
        }
        .qb-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .qb-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }
        .qb-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--qb-primary);
            padding: 8px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: background var(--qb-transition);
        }
        .qb-mobile-toggle:hover {
            background: rgba(16, 185, 129, 0.08);
        }
        .qb-mobile-menu {
            display: none;
            position: absolute;
            top: var(--qb-nav-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--qb-border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            box-shadow: 0 12px 32px rgba(10, 30, 46, 0.1);
            z-index: 1029;
        }
        .qb-mobile-menu.open {
            display: flex;
        }
        .qb-mobile-menu a {
            padding: 12px 16px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
        }
        .qb-mobile-menu a:hover,
        .qb-mobile-menu a.active {
            background: rgba(16, 185, 129, 0.08);
            color: var(--qb-accent-dark);
        }
        @media (max-width: 992px) {
            .qb-nav-left,
            .qb-nav-right {
                display: none;
            }
            .qb-nav-inner {
                justify-content: space-between;
            }
            .qb-mobile-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .qb-logo {
                font-size: 19px;
                gap: 8px;
            }
            .qb-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
                border-radius: 8px;
            }
        }
        /* ============ HERO ============ */
        .qb-hero {
            position: relative;
            background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-primary-light) 50%, var(--qb-surface-dark) 100%);
            padding: 64px 0 72px;
            overflow: hidden;
            min-height: 520px;
            display: flex;
            align-items: center;
        }
        .qb-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .qb-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 40%, rgba(16, 185, 129, 0.25) 0%, transparent 60%);
            z-index: 1;
        }
        .qb-hero .container {
            position: relative;
            z-index: 2;
        }
        .qb-hero-content {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .qb-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(16, 185, 129, 0.15);
            color: var(--qb-accent-glow);
            border: 1px solid rgba(16, 185, 129, 0.3);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .qb-hero h1 {
            font-size: clamp(32px, 5vw, 52px);
            font-weight: 800;
            color: #fff;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 18px;
        }
        .qb-hero h1 .highlight {
            color: var(--qb-accent-glow);
            position: relative;
        }
        .qb-hero-desc {
            font-size: 17px;
            color: rgba(226, 232, 240, 0.85);
            line-height: 1.9;
            max-width: 540px;
            margin-bottom: 28px;
        }
        .qb-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .qb-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: var(--qb-radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--qb-transition);
            line-height: 1.5;
        }
        .qb-btn-primary {
            background: var(--qb-accent);
            color: #fff;
            box-shadow: var(--qb-shadow-glow);
        }
        .qb-btn-primary:hover {
            background: var(--qb-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(16, 185, 129, 0.28);
        }
        .qb-btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.35);
        }
        .qb-btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-2px);
        }
        .qb-hero-panel {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--qb-radius-lg);
            padding: 28px;
            position: relative;
        }
        .qb-hero-panel .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }
        .qb-hero-panel .panel-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            letter-spacing: 0.3px;
        }
        .qb-hero-panel .panel-badge {
            font-size: 12px;
            background: rgba(16, 185, 129, 0.2);
            color: var(--qb-accent-glow);
            padding: 4px 12px;
            border-radius: 50px;
            font-weight: 500;
        }
        .qb-prediction-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .qb-prediction-row:last-child {
            border-bottom: none;
        }
        .qb-prediction-team {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }
        .qb-prediction-team .team-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--qb-accent);
            flex-shrink: 0;
        }
        .qb-prediction-team.away .team-dot {
            background: var(--qb-warm);
        }
        .qb-prediction-score {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
        }
        .qb-prediction-prob {
            font-size: 12px;
            color: rgba(226, 232, 240, 0.7);
            text-align: right;
        }
        .qb-prediction-prob strong {
            color: var(--qb-accent-glow);
            font-size: 15px;
        }
        @media (max-width: 992px) {
            .qb-hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .qb-hero {
                padding: 40px 0 48px;
                min-height: auto;
            }
        }
        /* ============ SECTION GEN ============ */
        .qb-section {
            padding: 72px 0;
        }
        .qb-section-alt {
            background: var(--qb-surface-alt);
        }
        .qb-section-dark {
            background: var(--qb-surface-dark);
            color: #fff;
        }
        .qb-section-dark .section-title {
            color: #fff;
        }
        .qb-section-dark .section-subtitle {
            color: rgba(226, 232, 240, 0.75);
        }
        @media (max-width: 767px) {
            .qb-section {
                padding: 48px 0;
            }
        }
        /* ============ FEATURE CARDS ============ */
        .qb-card {
            background: #fff;
            border-radius: var(--qb-radius);
            padding: 28px;
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            transition: all var(--qb-transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .qb-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--qb-accent), var(--qb-accent-glow));
            opacity: 0;
            transition: opacity var(--qb-transition);
        }
        .qb-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-card:hover::before {
            opacity: 1;
        }
        .qb-card-icon {
            width: 48px;
            height: 48px;
            background: rgba(16, 185, 129, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--qb-accent-dark);
            font-size: 20px;
            margin-bottom: 16px;
            transition: all var(--qb-transition);
        }
        .qb-card:hover .qb-card-icon {
            background: var(--qb-accent);
            color: #fff;
        }
        .qb-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 10px;
        }
        .qb-card p {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.8;
            margin-bottom: 0;
        }
        /* ============ STATS ============ */
        .qb-stat-item {
            text-align: center;
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--qb-radius);
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            transition: all var(--qb-transition);
        }
        .qb-stat-item:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-4px);
        }
        .qb-stat-number {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            color: var(--qb-accent-dark);
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .qb-stat-number .qb-stat-unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--qb-text-weak);
            letter-spacing: 0;
        }
        .qb-stat-label {
            font-size: 14px;
            color: var(--qb-text-weak);
            font-weight: 500;
        }
        /* ============ PROCESS / TIMELINE ============ */
        .qb-process-step {
            display: flex;
            gap: 20px;
            padding: 24px;
            background: #fff;
            border-radius: var(--qb-radius);
            border: 1px solid var(--qb-border);
            margin-bottom: 16px;
            transition: all var(--qb-transition);
        }
        .qb-process-step:hover {
            box-shadow: var(--qb-shadow);
            border-color: rgba(16, 185, 129, 0.25);
        }
        .qb-process-number {
            width: 44px;
            height: 44px;
            background: var(--qb-primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            flex-shrink: 0;
        }
        .qb-process-step:hover .qb-process-number {
            background: var(--qb-accent);
        }
        .qb-process-body h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 8px;
        }
        .qb-process-body p {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.8;
            margin-bottom: 0;
        }
        /* ============ IMAGE BLOCK ============ */
        .qb-img-block {
            border-radius: var(--qb-radius-lg);
            overflow: hidden;
            box-shadow: var(--qb-shadow-hover);
            position: relative;
        }
        .qb-img-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .qb-img-block .img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, transparent 40%, rgba(10, 30, 46, 0.7) 100%);
            display: flex;
            align-items: flex-end;
            padding: 24px;
        }
        .qb-img-block .img-overlay span {
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }
        /* ============ FEATURED PANEL ============ */
        .qb-featured-panel {
            background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-surface-dark) 100%);
            border-radius: var(--qb-radius-lg);
            padding: 36px 32px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .qb-featured-panel::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 60%);
            border-radius: 50%;
        }
        .qb-featured-panel h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .qb-featured-panel p {
            font-size: 15px;
            color: rgba(226, 232, 240, 0.8);
            line-height: 1.9;
            margin-bottom: 20px;
            position: relative;
            z-index: 1;
        }
        /* ============ FAQ ============ */
        .qb-accordion .accordion-item {
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: #fff;
            box-shadow: none;
        }
        .qb-accordion .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--qb-primary);
            padding: 18px 22px;
            background: #fff;
            box-shadow: none;
        }
        .qb-accordion .accordion-button:not(.collapsed) {
            background: rgba(16, 185, 129, 0.06);
            color: var(--qb-accent-dark);
        }
        .qb-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 3px solid rgba(16, 185, 129, 0.35);
            outline-offset: -3px;
        }
        .qb-accordion .accordion-body {
            font-size: 15px;
            color: var(--qb-text-weak);
            line-height: 1.9;
            padding: 18px 22px;
        }
        /* ============ CTA ============ */
        .qb-cta {
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-accent-dark) 100%);
            border-radius: var(--qb-radius-lg);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .qb-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            opacity: 0.15;
        }
        .qb-cta .cta-content {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }
        .qb-cta h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        .qb-cta p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 0;
            max-width: 520px;
            line-height: 1.8;
        }
        .qb-btn-light {
            background: #fff;
            color: var(--qb-accent-dark);
            font-weight: 700;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .qb-btn-light:hover {
            background: #f8fafc;
            color: var(--qb-accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }
        /* ============ FOOTER ============ */
        .qb-footer {
            background: var(--qb-primary);
            color: rgba(226, 232, 240, 0.8);
            padding: 56px 0 28px;
            font-size: 14px;
        }
        .qb-footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--qb-border-dark);
            margin-bottom: 24px;
        }
        .qb-footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.9;
            color: rgba(226, 232, 240, 0.65);
            max-width: 320px;
        }
        .qb-footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .qb-footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-footer-col ul li {
            margin-bottom: 8px;
        }
        .qb-footer-col ul li a {
            color: rgba(226, 232, 240, 0.65);
            font-size: 13px;
            transition: color var(--qb-transition);
        }
        .qb-footer-col ul li a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(226, 232, 240, 0.5);
        }
        .footer-beian {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-beian a {
            color: rgba(226, 232, 240, 0.5);
        }
        .footer-beian a:hover {
            color: var(--qb-accent-glow);
        }
        @media (max-width: 992px) {
            .qb-footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .qb-footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .qb-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        /* ============ PAGE SPECIFIC ============ */
        .qb-method-block {
            background: #fff;
            border-radius: var(--qb-radius);
            padding: 28px;
            border-left: 4px solid var(--qb-accent);
            box-shadow: var(--qb-shadow);
            margin-bottom: 16px;
        }
        .qb-method-block h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 8px;
        }
        .qb-method-block p {
            font-size: 14px;
            color: var(--qb-text-weak);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .qb-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-right: 8px;
            margin-bottom: 8px;
            border: 1px solid rgba(245, 158, 11, 0.2);
        }
        .qb-scenario-card {
            background: #fff;
            border-radius: var(--qb-radius);
            padding: 22px;
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            height: 100%;
            transition: all var(--qb-transition);
        }
        .qb-scenario-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-scenario-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--qb-primary);
            margin-bottom: 8px;
        }
        .qb-scenario-card p {
            font-size: 13px;
            color: var(--qb-text-weak);
            line-height: 1.8;
            margin-bottom: 0;
        }
        .qb-list-check {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-list-check li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            color: var(--qb-text);
            line-height: 1.7;
        }
        .qb-list-check li i {
            color: var(--qb-accent);
            margin-top: 4px;
            flex-shrink: 0;
        }

/* roulang page: category5 */
:root {
            --qb-primary: #0a1e2e;
            --qb-primary-light: #0f2d42;
            --qb-accent: #10b981;
            --qb-accent-dark: #059669;
            --qb-accent-glow: #34d399;
            --qb-warm: #f59e0b;
            --qb-surface: #ffffff;
            --qb-surface-alt: #f1f5f9;
            --qb-surface-dark: #0d2135;
            --qb-text: #1e293b;
            --qb-text-weak: #64748b;
            --qb-text-light: #e2e8f0;
            --qb-border: #e2e8f0;
            --qb-border-dark: #1e3a4d;
            --qb-radius: 16px;
            --qb-radius-sm: 10px;
            --qb-radius-lg: 24px;
            --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
            --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
            --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
            --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --qb-nav-height: 76px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--qb-font);
            color: var(--qb-text);
            background-color: var(--qb-surface);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(16, 185, 129, 0.4);
            outline-offset: 2px;
            border-radius: 6px;
        }

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

        button {
            font-family: var(--qb-font);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .section-title {
            font-size: clamp(26px, 4vw, 36px);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--qb-text-weak);
            max-width: 720px;
            line-height: 1.8;
        }

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

        .section-header.center {
            text-align: center;
        }
        .section-header.center .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        /* ============ NAVBAR ============ */
        .qb-navbar {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--qb-border);
            height: var(--qb-nav-height);
            display: flex;
            align-items: center;
            transition: box-shadow var(--qb-transition);
        }
        .qb-navbar.scrolled {
            box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
        }
        .qb-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }
        .qb-nav-left,
        .qb-nav-right {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
        }
        .qb-nav-left {
            justify-content: flex-end;
        }
        .qb-nav-right {
            justify-content: flex-start;
        }
        .qb-nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .qb-nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            border-radius: var(--qb-radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--qb-text);
            transition: all var(--qb-transition);
            white-space: nowrap;
            position: relative;
        }
        .qb-nav-links a:hover {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.06);
        }
        .qb-nav-links a.active {
            color: var(--qb-accent-dark);
            background: rgba(16, 185, 129, 0.1);
            font-weight: 600;
        }
        .qb-nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 3px;
            background: var(--qb-accent);
            border-radius: 3px;
        }
        .qb-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--qb-primary);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }
        .qb-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
        }
        .qb-mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--qb-primary);
            padding: 8px;
            cursor: pointer;
            border-radius: 8px;
        }
        .qb-mobile-toggle:hover {
            background: rgba(16, 185, 129, 0.08);
            color: var(--qb-accent-dark);
        }
        .qb-mobile-menu {
            display: none;
            position: absolute;
            top: var(--qb-nav-height);
            left: 0;
            right: 0;
            background: #fff;
            border-bottom: 1px solid var(--qb-border);
            box-shadow: 0 20px 40px rgba(10, 30, 46, 0.12);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            z-index: 1029;
        }
        .qb-mobile-menu a {
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--qb-text);
        }
        .qb-mobile-menu a:hover {
            background: rgba(16, 185, 129, 0.06);
            color: var(--qb-accent-dark);
        }
        .qb-mobile-menu a.active {
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            font-weight: 600;
        }
        .qb-mobile-menu.open {
            display: flex;
        }

        @media (max-width: 1024px) {
            .qb-nav-left,
            .qb-nav-right {
                display: none;
            }
            .qb-nav-inner {
                justify-content: space-between;
            }
            .qb-mobile-toggle {
                display: inline-flex;
                align-items: center;
            }
            .qb-logo {
                flex: 1;
                justify-content: center;
            }
            .qb-mobile-toggle {
                position: absolute;
                right: 16px;
            }
        }

        /* ============ BUTTONS ============ */
        .btn-qb {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--qb-transition);
            letter-spacing: 0.3px;
        }
        .btn-qb-primary {
            background: var(--qb-accent);
            color: #fff;
            box-shadow: var(--qb-shadow-glow);
        }
        .btn-qb-primary:hover {
            background: var(--qb-accent-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(16, 185, 129, 0.28);
        }
        .btn-qb-outline {
            background: transparent;
            color: var(--qb-primary);
            border: 2px solid var(--qb-primary);
        }
        .btn-qb-outline:hover {
            background: var(--qb-primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-qb-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(10px);
        }
        .btn-qb-light:hover {
            background: rgba(255, 255, 255, 0.22);
            color: #fff;
        }
        .btn-qb-lg {
            padding: 14px 36px;
            font-size: 17px;
        }
        .btn-qb-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        /* ============ BADGES & TAGS ============ */
        .qb-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: var(--qb-surface-alt);
            color: var(--qb-text-weak);
            border: 1px solid var(--qb-border);
        }
        .qb-tag-accent {
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            border-color: rgba(16, 185, 129, 0.2);
        }
        .qb-tag-warm {
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
            border-color: rgba(245, 158, 11, 0.25);
        }

        /* ============ CARDS ============ */
        .qb-card {
            background: var(--qb-surface);
            border-radius: var(--qb-radius);
            border: 1px solid var(--qb-border);
            box-shadow: var(--qb-shadow);
            padding: 28px;
            transition: all var(--qb-transition);
            height: 100%;
        }
        .qb-card:hover {
            box-shadow: var(--qb-shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(16, 185, 129, 0.1);
            color: var(--qb-accent-dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .qb-card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--qb-primary);
        }
        .qb-card-text {
            font-size: 15px;
            color: var(--qb-text-weak);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ============ HERO ============ */
        .qb-hero {
            position: relative;
            padding: 60px 0 80px;
            background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-primary-light) 50%, #0a2a3f 100%);
            overflow: hidden;
            min-height: 560px;
            display: flex;
            align-items: center;
        }
        .qb-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.18) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .qb-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .qb-hero-content {
            position: relative;
            z-index: 2;
        }
        .qb-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(16, 185, 129, 0.15);
            color: var(--qb-accent-glow);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid rgba(16, 185, 129, 0.3);
            margin-bottom: 24px;
        }
        .qb-hero-title {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            line-height: 1.25;
            margin-bottom: 20px;
        }
        .qb-hero-desc {
            font-size: 17px;
            color: rgba(226, 232, 240, 0.85);
            max-width: 560px;
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .qb-hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        .qb-hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }
        .qb-hero-stat {
            text-align: left;
        }
        .qb-hero-stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--qb-accent-glow);
            line-height: 1.2;
        }
        .qb-hero-stat-label {
            font-size: 13px;
            color: rgba(226, 232, 240, 0.6);
        }
        /* 倒计时环 */
        .qb-countdown-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
        }
        .qb-countdown-ring {
            position: relative;
            width: 180px;
            height: 180px;
        }
        .qb-countdown-ring svg {
            transform: rotate(-90deg);
            width: 100%;
            height: 100%;
        }
        .qb-countdown-ring .ring-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 8;
        }
        .qb-countdown-ring .ring-progress {
            fill: none;
            stroke: var(--qb-accent);
            stroke-width: 8;
            stroke-linecap: round;
            stroke-dasharray: 440;
            stroke-dashoffset: 110;
            transition: stroke-dashoffset 1s ease;
            filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.5));
        }
        .qb-countdown-center {
            position: absolute;
            inset: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }
        .qb-countdown-num {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
        }
        .qb-countdown-label {
            font-size: 13px;
            color: rgba(226, 232, 240, 0.6);
        }
        .qb-carousel-dots {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .qb-carousel-dot-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            cursor: pointer;
            transition: all var(--qb-transition);
        }
        .qb-carousel-dot-item:hover,
        .qb-carousel-dot-item.active {
            background: rgba(16, 185, 129, 0.12);
            border-color: rgba(16, 185, 129, 0.35);
        }
        .qb-carousel-dot-indicator {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            flex-shrink: 0;
            transition: all var(--qb-transition);
        }
        .qb-carousel-dot-item.active .qb-carousel-dot-indicator {
            background: var(--qb-accent);
            box-shadow: 0 0 12px rgba(16, 185, 129, 0.6);
        }
        .qb-carousel-dot-text {
            color: rgba(226, 232, 240, 0.8);
            font-size: 14px;
            font-weight: 500;
        }
        .qb-carousel-dot-item.active .qb-carousel-dot-text {
            color: #fff;
        }

        /* ============ SECTIONS ============ */
        .qb-section {
            padding: 80px 0;
        }
        .qb-section-alt {
            background: var(--qb-surface-alt);
        }
        .qb-section-dark {
            background: var(--qb-surface-dark);
            color: var(--qb-text-light);
        }
        .qb-section-dark .section-subtitle {
            color: rgba(226, 232, 240, 0.7);
        }
        .qb-section-dark .section-title {
            color: #fff;
        }

        /* ============ STAT BLOCKS ============ */
        .qb-stat-big {
            text-align: center;
            padding: 24px 16px;
            border-radius: var(--qb-radius);
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .qb-stat-big-num {
            font-size: 42px;
            font-weight: 800;
            color: var(--qb-accent-glow);
            line-height: 1.1;
        }
        .qb-stat-big-label {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.6);
            margin-top: 4px;
        }

        /* ============ LIST ITEMS ============ */
        .qb-checklist {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-checklist li {
            padding: 10px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--qb-text-weak);
        }
        .qb-checklist li i {
            color: var(--qb-accent);
            margin-top: 5px;
            flex-shrink: 0;
        }

        /* ============ FAQ ============ */
        .qb-faq-item {
            background: var(--qb-surface);
            border: 1px solid var(--qb-border);
            border-radius: var(--qb-radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--qb-transition);
        }
        .qb-faq-item:hover {
            border-color: rgba(16, 185, 129, 0.3);
        }
        .qb-faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--qb-text);
            cursor: pointer;
            text-align: left;
            gap: 16px;
        }
        .qb-faq-question i {
            color: var(--qb-accent);
            transition: transform var(--qb-transition);
            flex-shrink: 0;
        }
        .qb-faq-question[aria-expanded="true"] i {
            transform: rotate(45deg);
        }
        .qb-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--qb-text-weak);
            font-size: 15px;
            line-height: 1.8;
        }
        .qb-faq-item.active .qb-faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* ============ CTA ============ */
        .qb-cta {
            background: linear-gradient(135deg, var(--qb-primary) 0%, #0f3d4f 100%);
            border-radius: var(--qb-radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
            color: #fff;
        }
        .qb-cta::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .qb-cta-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .qb-cta-form input {
            flex: 1;
            min-width: 220px;
            padding: 14px 20px;
            border-radius: 50px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 15px;
            backdrop-filter: blur(10px);
        }
        .qb-cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .qb-cta-form input:focus {
            outline: none;
            border-color: var(--qb-accent);
            background: rgba(255, 255, 255, 0.12);
        }

        /* ============ FOOTER ============ */
        .qb-footer {
            background: var(--qb-primary);
            color: var(--qb-text-light);
            padding: 60px 0 0;
            margin-top: 0;
        }
        .qb-footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .qb-footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.65);
            line-height: 1.8;
            max-width: 360px;
        }
        .qb-footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .qb-footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .qb-footer-col ul li {
            margin-bottom: 10px;
        }
        .qb-footer-col ul a {
            font-size: 14px;
            color: rgba(226, 232, 240, 0.65);
            transition: color var(--qb-transition);
        }
        .qb-footer-col ul a:hover {
            color: var(--qb-accent-glow);
        }
        .qb-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(226, 232, 240, 0.5);
        }
        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .footer-beian a {
            color: rgba(226, 232, 240, 0.5);
        }
        .footer-beian a:hover {
            color: var(--qb-accent-glow);
        }

        @media (max-width: 768px) {
            .qb-footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .qb-footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-beian {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

/* roulang page: category6 */
:root {
  --qb-primary: #0a1e2e;
  --qb-primary-light: #0f2d42;
  --qb-accent: #10b981;
  --qb-accent-dark: #059669;
  --qb-accent-glow: #34d399;
  --qb-warm: #f59e0b;
  --qb-surface: #ffffff;
  --qb-surface-alt: #f1f5f9;
  --qb-surface-dark: #0d2135;
  --qb-text: #1e293b;
  --qb-text-weak: #64748b;
  --qb-text-light: #e2e8f0;
  --qb-border: #e2e8f0;
  --qb-border-dark: #1e3a4d;
  --qb-radius: 16px;
  --qb-radius-sm: 10px;
  --qb-radius-lg: 24px;
  --qb-shadow: 0 8px 28px rgba(10, 30, 46, 0.08);
  --qb-shadow-hover: 0 16px 40px rgba(10, 30, 46, 0.14);
  --qb-shadow-glow: 0 8px 32px rgba(16, 185, 129, 0.16);
  --qb-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --qb-font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --qb-nav-height: 76px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--qb-font);
  color: var(--qb-text);
  background-color: var(--qb-surface);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(16, 185, 129, 0.4);
  outline-offset: 2px;
  border-radius: 6px;
}

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

button {
  font-family: var(--qb-font);
}

.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}

.section-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--qb-accent-dark);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.section-badge.warm {
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
  border-color: rgba(245, 158, 11, 0.25);
}

.section-badge.dark {
  background: rgba(10, 30, 46, 0.08);
  color: var(--qb-primary);
  border-color: rgba(10, 30, 46, 0.15);
}

.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--qb-text-weak);
  max-width: 720px;
  line-height: 1.8;
}

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

.section-header.center {
  text-align: center;
}

.section-header.center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ============ NAVBAR (居中 Logo + 两侧导航) ============ */
.qb-navbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--qb-border);
  height: var(--qb-nav-height);
  display: flex;
  align-items: center;
  transition: box-shadow var(--qb-transition);
}

.qb-navbar.scrolled {
  box-shadow: 0 4px 24px rgba(10, 30, 46, 0.08);
}

.qb-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
}

.qb-nav-left,
.qb-nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.qb-nav-left {
  justify-content: flex-end;
}

.qb-nav-right {
  justify-content: flex-start;
}

.qb-nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.qb-nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: var(--qb-radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--qb-text);
  transition: all var(--qb-transition);
  white-space: nowrap;
  position: relative;
}

.qb-nav-links a:hover {
  color: var(--qb-accent-dark);
  background: rgba(16, 185, 129, 0.06);
}

.qb-nav-links a.active {
  color: var(--qb-accent-dark);
  background: rgba(16, 185, 129, 0.1);
  font-weight: 600;
}

.qb-nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 3px;
  background: var(--qb-accent);
  border-radius: 3px;
}

.qb-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--qb-primary);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.qb-logo .logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
}

.qb-mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--qb-primary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--qb-radius-sm);
  transition: background var(--qb-transition);
}

.qb-mobile-toggle:hover {
  background: var(--qb-surface-alt);
}

.qb-mobile-menu {
  display: none;
  position: absolute;
  top: var(--qb-nav-height);
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--qb-border);
  box-shadow: var(--qb-shadow-hover);
  padding: 16px 24px;
  flex-direction: column;
  gap: 4px;
  z-index: 1029;
}

.qb-mobile-menu.open {
  display: flex;
}

.qb-mobile-menu a {
  padding: 12px 16px;
  border-radius: var(--qb-radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--qb-text);
  transition: all var(--qb-transition);
}

.qb-mobile-menu a:hover {
  background: rgba(16, 185, 129, 0.06);
  color: var(--qb-accent-dark);
}

.qb-mobile-menu a.active {
  background: rgba(16, 185, 129, 0.1);
  color: var(--qb-accent-dark);
  font-weight: 600;
}

/* ============ 内页 Hero（品牌旗舰店·系列导航条叠在大图上） ============ */
.qb-inner-hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: stretch;
  background: var(--qb-primary);
  overflow: hidden;
}

.qb-inner-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: 1;
}

.qb-inner-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,30,46,0.72) 0%, rgba(10,30,46,0.58) 40%, rgba(10,30,46,0.85) 100%);
  z-index: 2;
}

.qb-inner-hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px 64px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 28px;
}

.qb-hero-category-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 4px;
}

.qb-hero-category-strip a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50px;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: all var(--qb-transition);
  white-space: nowrap;
}

.qb-hero-category-strip a:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
  transform: translateY(-2px);
}

.qb-hero-category-strip a.active {
  background: var(--qb-accent);
  border-color: var(--qb-accent);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.qb-hero-category-strip a i {
  font-size: 12px;
}

.qb-inner-hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -1px;
  line-height: 1.2;
  margin-bottom: 8px;
}

.qb-inner-hero .lead {
  font-size: clamp(16px, 2vw, 19px);
  color: rgba(255, 255, 255, 0.85);
  max-width: 680px;
  line-height: 1.8;
}

.qb-hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

.btn-qb-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--qb-accent);
  color: #fff;
  border: none;
  border-radius: var(--qb-radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all var(--qb-transition);
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-qb-primary:hover {
  background: var(--qb-accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(16, 185, 129, 0.4);
}

.btn-qb-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--qb-radius-sm);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--qb-transition);
}

.btn-qb-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
  transform: translateY(-2px);
}

/* ============ 数据快照条 ============ */
.qb-snapshot-bar {
  background: var(--qb-surface-dark);
  padding: 28px 0;
  border-bottom: 1px solid var(--qb-border-dark);
}

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

.qb-snapshot-item {
  text-align: center;
  color: #fff;
}

.qb-snapshot-item .num {
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 800;
  color: var(--qb-accent-glow);
  letter-spacing: -0.5px;
  line-height: 1.2;
}

.qb-snapshot-item .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 4px;
}

/* ============ 核心情报服务（非对称布局） ============ */
.qb-service-section {
  padding: 80px 0;
  background: var(--qb-surface);
}

.qb-service-asymmetric {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: start;
}

.qb-service-media {
  position: relative;
  border-radius: var(--qb-radius-lg);
  overflow: hidden;
  box-shadow: var(--qb-shadow-hover);
}

.qb-service-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--qb-radius-lg);
}

.qb-service-media .floating-card {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border-radius: var(--qb-radius);
  padding: 20px 24px;
  box-shadow: var(--qb-shadow-hover);
  display: flex;
  align-items: center;
  gap: 16px;
}

.qb-service-media .floating-icon {
  width: 48px;
  height: 48px;
  background: rgba(16, 185, 129, 0.12);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--qb-accent-dark);
  font-size: 20px;
  flex-shrink: 0;
}

.qb-service-media .floating-text h6 {
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 2px;
  color: var(--qb-primary);
}

.qb-service-media .floating-text p {
  font-size: 13px;
  color: var(--qb-text-weak);
  margin: 0;
}

.qb-service-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.qb-service-item {
  display: flex;
  gap: 18px;
  padding: 20px 24px;
  background: var(--qb-surface);
  border: 1px solid var(--qb-border);
  border-radius: var(--qb-radius);
  transition: all var(--qb-transition);
}

.qb-service-item:hover {
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: var(--qb-shadow);
  transform: translateX(4px);
}

.qb-service-item .item-icon {
  width: 52px;
  height: 52px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--qb-accent-dark);
  font-size: 20px;
  flex-shrink: 0;
}

.qb-service-item .item-body h5 {
  font-size: 17px;
  font-weight: 700;
  color: var(--qb-primary);
  margin: 0 0 6px;
}

.qb-service-item .item-body p {
  font-size: 14px;
  color: var(--qb-text-weak);
  margin: 0;
  line-height: 1.7;
}

/* ============ 情报覆盖矩阵 ============ */
.qb-coverage-section {
  padding: 80px 0;
  background: var(--qb-surface-alt);
}

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

.qb-coverage-card {
  background: var(--qb-surface);
  border-radius: var(--qb-radius);
  padding: 28px;
  border: 1px solid var(--qb-border);
  transition: all var(--qb-transition);
  position: relative;
  overflow: hidden;
}

.qb-coverage-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--qb-accent), var(--qb-accent-glow));
  opacity: 0;
  transition: opacity var(--qb-transition);
}

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

.qb-coverage-card:hover::before {
  opacity: 1;
}

.qb-coverage-card .card-icon {
  width: 56px;
  height: 56px;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--qb-accent-dark);
  font-size: 24px;
  margin-bottom: 18px;
}

.qb-coverage-card h5 {
  font-size: 18px;
  font-weight: 700;
  color: var(--qb-primary);
  margin: 0 0 10px;
}

.qb-coverage-card p {
  font-size: 14px;
  color: var(--qb-text-weak);
  margin: 0;
  line-height: 1.7;
}

.qb-coverage-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.qb-coverage-card .card-tags span {
  display: inline-block;
  padding: 4px 10px;
  background: var(--qb-surface-alt);
  border-radius: 50px;
  font-size: 11px;
  color: var(--qb-text-weak);
  font-weight: 500;
}

/* ============ 深度情报工作台 ============ */
.qb-workbench-section {
  padding: 80px 0;
  background: var(--qb-surface-dark);
  position: relative;
  overflow: hidden;
}

.qb-workbench-section::after {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(16,185,129,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.qb-workbench-section .section-title {
  color: #fff;
}

.qb-workbench-section .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.qb-workbench-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  position: relative;
  z-index: 2;
}

.qb-workbench-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--qb-radius);
  padding: 32px;
  transition: all var(--qb-transition);
}

.qb-workbench-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(16, 185, 129, 0.35);
  transform: translateY(-4px);
}

.qb-workbench-card .wb-icon {
  width: 48px;
  height: 48px;
  background: rgba(16, 185, 129, 0.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--qb-accent-glow);
  font-size: 20px;
  margin-bottom: 16px;
}

.qb-workbench-card h5 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 10px;
}

.qb-workbench-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 16px;
  line-height: 1.8;
}

.qb-workbench-card .wb-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.qb-workbench-card .wb-feature-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
}

.qb-workbench-card .wb-feature-list li i {
  color: var(--qb-accent-glow);
  font-size: 13px;
  flex-shrink: 0;
}

/* ============ 服务流程 ============ */
.qb-process-section {
  padding: 80px 0;
  background: var(--qb-surface);
}

.qb-process-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  position: relative;
}

.qb-process-flow::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: linear-gradient(90deg, var(--qb-accent) 0%, var(--qb-accent-glow) 50%, var(--qb-accent) 100%);
  opacity: 0.3;
  z-index: 1;
}

.qb-process-step {
  position: relative;
  z-index: 2;
  text-align: center;
}

.qb-process-step .step-circle {
  width: 72px;
  height: 72px;
  background: var(--qb-surface);
  border: 3px solid var(--qb-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: var(--qb-accent-dark);
  margin: 0 auto 18px;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.15);
  transition: all var(--qb-transition);
}

.qb-process-step:hover .step-circle {
  background: var(--qb-accent);
  color: #fff;
  transform: scale(1.08);
  box-shadow: 0 8px 28px rgba(16, 185, 129, 0.3);
}

.qb-process-step h6 {
  font-size: 16px;
  font-weight: 700;
  color: var(--qb-primary);
  margin: 0 0 8px;
}

.qb-process-step p {
  font-size: 13px;
  color: var(--qb-text-weak);
  margin: 0;
  line-height: 1.6;
}

/* ============ 用户见证/数据背书 ============ */
.qb-testimonial-section {
  padding: 80px 0;
  background: var(--qb-surface-alt);
}

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

.qb-testimonial-card {
  background: var(--qb-surface);
  border-radius: var(--qb-radius);
  padding: 28px;
  border: 1px solid var(--qb-border);
  transition: all var(--qb-transition);
}

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

.qb-testimonial-card .quote-icon {
  color: var(--qb-accent);
  font-size: 24px;
  margin-bottom: 14px;
  opacity: 0.6;
}

.qb-testimonial-card .quote-text {
  font-size: 14px;
  color: var(--qb-text);
  line-height: 1.8;
  margin: 0 0 18px;
}

.qb-testimonial-card .quote-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.qb-testimonial-card .author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--qb-accent) 0%, var(--qb-primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.qb-testimonial-card .author-info h6 {
  font-size: 14px;
  font-weight: 700;
  color: var(--qb-primary);
  margin: 0;
}

.qb-testimonial-card .author-info span {
  font-size: 12px;
  color: var(--qb-text-weak);
}

/* ============ FAQ ============ */
.qb-faq-section {
  padding: 80px 0;
  background: var(--qb-surface);
}

.qb-faq-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.qb-faq-item {
  border: 1px solid var(--qb-border);
  border-radius: var(--qb-radius);
  margin-bottom: 14px;
  background: var(--qb-surface);
  transition: all var(--qb-transition);
  overflow: hidden;
}

.qb-faq-item:hover {
  border-color: rgba(16, 185, 129, 0.35);
  box-shadow: var(--qb-shadow);
}

.qb-faq-item .accordion-button {
  background: var(--qb-surface);
  color: var(--qb-primary);
  font-size: 16px;
  font-weight: 600;
  padding: 20px 24px;
  border: none;
  box-shadow: none;
  border-radius: var(--qb-radius);
}

.qb-faq-item .accordion-button:not(.collapsed) {
  background: rgba(16, 185, 129, 0.04);
  color: var(--qb-accent-dark);
  box-shadow: none;
}

.qb-faq-item .accordion-button:focus {
  box-shadow: none;
  outline: 3px solid rgba(16, 185, 129, 0.3);
}

.qb-faq-item .accordion-button::after {
  filter: brightness(0) saturate(100%) invert(48%) sepia(79%) saturate(357%) hue-rotate(125deg) brightness(92%) contrast(90%);
}

.qb-faq-item .accordion-body {
  font-size: 14px;
  color: var(--qb-text-weak);
  line-height: 1.8;
  padding: 0 24px 20px;
}

/* ============ 底部 CTA ============ */
.qb-cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--qb-primary) 0%, var(--qb-primary-light) 60%, #0d2135 100%);
  position: relative;
  overflow: hidden;
}

.qb-cta-section::before {
  content: '';
  position: absolute;
  top: -80px;
  left: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(16,185,129,0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.qb-cta-section::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(245,158,11,0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.qb-cta-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--qb-radius-lg);
  padding: 48px 40px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.qb-cta-card h2 {
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.qb-cta-card p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 580px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

/* ============ Footer ============ */
.qb-footer {
  background: var(--qb-primary);
  color: var(--qb-text-light);
  padding: 56px 0 0;
}

.qb-footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--qb-border-dark);
}

.qb-footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  max-width: 360px;
  margin: 0;
}

.qb-footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}

.qb-footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.qb-footer-col ul a:hover {
  color: var(--qb-accent-glow);
  padding-left: 4px;
}

.qb-footer-bottom {
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-beian {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
}

.footer-beian a {
  color: rgba(255, 255, 255, 0.5);
}

.footer-beian a:hover {
  color: var(--qb-accent-glow);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .qb-nav-left,
  .qb-nav-right {
    flex: 0 1 auto;
  }

  .qb-nav-links a {
    padding: 10px 8px;
    font-size: 13px;
  }

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

  .qb-service-asymmetric {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .qb-service-media img {
    height: 320px;
  }

  .qb-process-flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .qb-process-flow::before {
    display: none;
  }

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

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

@media (max-width: 768px) {
  :root {
    --qb-nav-height: 64px;
  }

  .qb-nav-inner {
    gap: 10px;
  }

  .qb-nav-left,
  .qb-nav-right {
    display: none;
  }

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

  .qb-logo .logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    font-size: 13px;
  }

  .qb-mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .qb-inner-hero {
    min-height: 480px;
  }

  .qb-inner-hero-content {
    padding: 48px 16px 40px;
  }

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

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

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

  .qb-process-flow {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .qb-cta-card {
    padding: 32px 20px;
  }

  .qb-footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .qb-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  .qb-inner-hero {
    min-height: 440px;
  }

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

  .qb-hero-category-strip a {
    padding: 6px 12px;
    font-size: 11px;
  }

  .qb-snapshot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .qb-snapshot-item .num {
    font-size: 24px;
  }

  .qb-service-item {
    flex-direction: column;
    padding: 16px;
  }

  .qb-service-media .floating-card {
    position: static;
    margin-top: 12px;
  }

  .qb-coverage-card,
  .qb-workbench-card,
  .qb-testimonial-card {
    padding: 20px;
  }

  .qb-cta-card h2 {
    font-size: 22px;
  }
}