/* roulang page: index */
:root {
            --sh-primary: #0f172a;
            --sh-accent: #2563eb;
            --sh-accent-hover: #1d4ed8;
            --sh-gold: #f59e0b;
            --sh-bg-main: #f8fafc;
            --sh-bg-card: #ffffff;
            --sh-text-title: #0f172a;
            --sh-text-body: #334155;
            --sh-text-muted: #64748b;
            --sh-border: #e2e8f0;
            --sh-radius: 12px;
            --sh-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --sh-shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
            --sh-shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--sh-bg-main);
            color: var(--sh-text-body);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease-in-out;
        }
        a:hover {
            color: var(--sh-accent);
        }

        /* 顶部导航：品牌活动版式 */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--sh-border);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 2px 10px rgba(0,0,0,0.03);
        }
        .navbar-brand-custom {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--sh-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
        }
        .navbar-brand-custom .brand-badge {
            font-size: 0.7rem;
            padding: 2px 8px;
            background: #eff6ff;
            color: var(--sh-accent);
            border-radius: 20px;
            font-weight: 600;
            border: 1px solid #bfdbfe;
        }
        .nav-link-custom {
            font-weight: 500;
            color: var(--sh-text-body);
            padding: 8px 16px !important;
            border-radius: 6px;
            transition: all 0.2s;
        }
        .nav-link-custom:hover, .nav-link-custom.active {
            color: var(--sh-accent);
            background-color: #f1f5f9;
        }
        .nav-btn-action {
            background-color: var(--sh-accent);
            color: #ffffff !important;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
        }
        .nav-btn-action:hover {
            background-color: var(--sh-accent-hover);
            transform: translateY(-1px);
        }

        /* 容器间距与段落系统 */
        .section-padding {
            padding: 72px 0;
        }
        .section-alt {
            background-color: #ffffff;
        }
        .section-header {
            margin-bottom: 48px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--sh-accent);
            background: #eff6ff;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--sh-text-title);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--sh-text-muted);
            max-width: 680px;
            margin: 0 auto;
        }

        /* Hero：卡片堆叠首屏 */
        .hero-section {
            padding: 60px 0 80px;
            background: radial-gradient(circle at 80% 20%, #e0f2fe 0%, #f8fafc 60%);
            position: relative;
            overflow: hidden;
        }
        .hero-content h1 {
            font-size: 2.75rem;
            font-weight: 850;
            line-height: 1.25;
            color: var(--sh-text-title);
            margin-bottom: 20px;
            letter-spacing: -0.8px;
        }
        .hero-intro {
            font-size: 1.12rem;
            color: var(--sh-text-body);
            margin-bottom: 32px;
            line-height: 1.75;
        }
        .hero-stack-container {
            position: relative;
            min-height: 440px;
        }
        .stack-card {
            border-radius: var(--sh-radius);
            box-shadow: var(--sh-shadow-lg);
            transition: all 0.3s ease;
            position: absolute;
            background: #ffffff;
            border: 1px solid rgba(255,255,255,0.8);
            overflow: hidden;
        }
        .stack-card-main {
            width: 78%;
            left: 11%;
            top: 20px;
            z-index: 3;
        }
        .stack-card-left {
            width: 65%;
            left: 0;
            top: 80px;
            z-index: 1;
            transform: rotate(-4deg);
            opacity: 0.85;
        }
        .stack-card-right {
            width: 65%;
            right: 0;
            top: 70px;
            z-index: 2;
            transform: rotate(4deg);
            opacity: 0.9;
        }
        .stack-card:hover {
            transform: translateY(-8px) scale(1.02);
            z-index: 4;
            opacity: 1;
        }
        .stack-img {
            width: 100%;
            height: 230px;
            object-fit: cover;
        }
        .stack-body {
            padding: 18px 20px;
        }

        /* 闪购/倒计时条组件 */
        .flash-sale-bar {
            background: linear-gradient(90deg, #1e293b 0%, #0f172a 100%);
            border-radius: var(--sh-radius);
            padding: 24px 32px;
            color: #ffffff;
            margin-bottom: 40px;
            box-shadow: var(--sh-shadow-md);
        }
        .timer-box {
            display: inline-flex;
            gap: 8px;
            align-items: center;
        }
        .timer-segment {
            background: rgba(255,255,255,0.15);
            padding: 4px 10px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--sh-gold);
        }
        .stock-progress {
            height: 8px;
            background: rgba(255,255,255,0.2);
            border-radius: 4px;
            overflow: hidden;
        }
        .stock-bar {
            background-color: #ef4444;
            width: 78%;
            height: 100%;
        }

        /* KPI 看板 */
        .kpi-card {
            background: #ffffff;
            border: 1px solid var(--sh-border);
            border-radius: var(--sh-radius);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--sh-shadow-sm);
            transition: transform 0.2s;
        }
        .kpi-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--sh-shadow-md);
            border-color: #bfdbfe;
        }
        .kpi-num {
            font-size: 2.3rem;
            font-weight: 850;
            color: var(--sh-accent);
            line-height: 1;
            margin-bottom: 8px;
        }
        .kpi-title {
            font-weight: 600;
            color: var(--sh-text-title);
            font-size: 0.95rem;
            margin-bottom: 4px;
        }
        .kpi-note {
            font-size: 0.8rem;
            color: var(--sh-text-muted);
        }

        /* 卡片基础与服务矩阵 */
        .feature-box {
            background: #ffffff;
            border: 1px solid var(--sh-border);
            border-radius: var(--sh-radius);
            padding: 30px 24px;
            height: 100%;
            transition: all 0.25s ease;
        }
        .feature-box:hover {
            box-shadow: var(--sh-shadow-md);
            transform: translateY(-4px);
            border-color: #93c5fd;
        }
        .feature-icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: #eff6ff;
            color: var(--sh-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 20px;
        }

        /* 结果对比表格/板块 */
        .compare-table {
            width: 100%;
            background: #ffffff;
            border-radius: var(--sh-radius);
            overflow: hidden;
            box-shadow: var(--sh-shadow-sm);
            border: 1px solid var(--sh-border);
        }
        .compare-table th, .compare-table td {
            padding: 16px 20px;
            text-align: left;
            border-bottom: 1px solid var(--sh-border);
        }
        .compare-table thead {
            background-color: #f1f5f9;
            color: var(--sh-text-title);
            font-weight: 700;
        }
        .compare-highlight {
            background-color: #f0fdf4;
            font-weight: 600;
            color: #166534;
        }

        /* 里程碑 / 时间线 */
        .timeline-step {
            position: relative;
            padding-left: 36px;
            margin-bottom: 28px;
        }
        .timeline-step::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 6px;
            bottom: -28px;
            width: 2px;
            background: #e2e8f0;
        }
        .timeline-step:last-child::before {
            display: none;
        }
        .timeline-bullet {
            position: absolute;
            left: 0;
            top: 2px;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--sh-accent);
            border: 4px solid #dbeafe;
        }

        /* 资讯与图文卡片 */
        .post-card {
            background: #ffffff;
            border: 1px solid var(--sh-border);
            border-radius: var(--sh-radius);
            overflow: hidden;
            transition: all 0.25s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            box-shadow: var(--sh-shadow-md);
            transform: translateY(-4px);
        }
        .post-thumb {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }
        .post-body {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        .post-badge {
            font-size: 0.75rem;
            color: var(--sh-accent);
            background: #eff6ff;
            display: inline-block;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 600;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        /* 阶梯优惠条 */
        .ladder-card {
            border: 2px dashed #cbd5e1;
            border-radius: var(--sh-radius);
            padding: 24px;
            background: #ffffff;
            position: relative;
        }
        .ladder-card.active {
            border: 2px solid var(--sh-accent);
            background: #f8faff;
        }

        /* 问答折叠 */
        .faq-accordion .accordion-item {
            border: 1px solid var(--sh-border);
            border-radius: 8px !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            color: var(--sh-text-title);
            background: #ffffff;
            padding: 16px 20px;
            font-size: 1rem;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--sh-accent);
            background: #f8fafc;
            box-shadow: none;
        }
        .faq-accordion .accordion-body {
            color: var(--sh-text-body);
            font-size: 0.95rem;
            line-height: 1.7;
            background: #f8fafc;
            padding: 0 20px 20px;
        }

        /* 页脚 */
        .site-footer {
            background-color: #0b1120;
            color: #94a3b8;
            padding: 60px 0 24px;
            font-size: 0.9rem;
            border-top: 1px solid #1e293b;
        }
        .footer-title {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-divider {
            border-color: #1e293b;
            margin: 40px 0 24px;
        }

        /* 响应式调整 */
        @media (max-width: 991px) {
            .hero-section {
                padding: 40px 0 60px;
            }
            .hero-stack-container {
                min-height: 380px;
                margin-top: 40px;
            }
            .hero-content h1 {
                font-size: 2.2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 576px) {
            .hero-content h1 {
                font-size: 1.8rem;
            }
            .stack-card-main {
                width: 90%;
                left: 5%;
            }
            .stack-card-left, .stack-card-right {
                display: none;
            }
            .flash-sale-bar {
                padding: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --sh-primary: #0f172a;
            --sh-accent: #2563eb;
            --sh-accent-hover: #1d4ed8;
            --sh-gold: #f59e0b;
            --sh-bg-main: #f8fafc;
            --sh-bg-card: #ffffff;
            --sh-text-title: #0f172a;
            --sh-text-body: #334155;
            --sh-text-muted: #64748b;
            --sh-border: #e2e8f0;
            --sh-radius: 12px;
            --sh-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --sh-shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
            --sh-shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--sh-bg-main);
            color: var(--sh-text-body);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.2s ease-in-out;
        }
        a:hover {
            color: var(--sh-accent);
        }
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--sh-border);
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 2px 10px rgba(0,0,0,0.03);
        }
        .navbar-brand-custom {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--sh-primary);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
        }
        .navbar-brand-custom .brand-badge {
            font-size: 0.7rem;
            padding: 2px 8px;
            background: #eff6ff;
            color: var(--sh-accent);
            border-radius: 20px;
            font-weight: 600;
            border: 1px solid #bfdbfe;
        }
        .nav-link-custom {
            font-weight: 500;
            color: var(--sh-text-body);
            padding: 8px 16px !important;
            border-radius: 6px;
            transition: all 0.2s;
        }
        .nav-link-custom:hover, .nav-link-custom.active {
            color: var(--sh-accent);
            background-color: #f1f5f9;
        }
        .nav-btn-action {
            background-color: var(--sh-accent);
            color: #ffffff !important;
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
            display: inline-block;
        }
        .nav-btn-action:hover {
            background-color: var(--sh-accent-hover);
            transform: translateY(-1px);
        }
        .section-padding {
            padding: 72px 0;
        }
        .section-alt {
            background-color: #ffffff;
        }
        .section-header {
            margin-bottom: 48px;
            text-align: center;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            color: var(--sh-accent);
            background: #eff6ff;
            padding: 4px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--sh-text-title);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 1.05rem;
            color: var(--sh-text-muted);
            max-width: 680px;
            margin: 0 auto;
        }
        .flagship-hero {
            position: relative;
            background: #0b1120;
            color: #ffffff;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .flagship-hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: linear-gradient(rgba(11, 17, 32, 0.82), rgba(11, 17, 32, 0.94)), url('/assets/images/美女壁纸第708期-_-王玉雯.webp');
            background-size: cover;
            background-position: center 25%;
            z-index: 1;
        }
        .flagship-hero-content {
            position: relative;
            z-index: 2;
            padding: 85px 0 60px;
        }
        .category-nav-bar {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--sh-radius);
            padding: 14px 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            justify-content: space-between;
            margin-top: 36px;
        }
        .category-pill-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .category-pill {
            background: rgba(255, 255, 255, 0.12);
            color: #e2e8f0;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: all 0.2s;
        }
        .category-pill:hover, .category-pill.active {
            background: var(--sh-accent);
            color: #ffffff;
        }
        .feature-box {
            background: #ffffff;
            border: 1px solid var(--sh-border);
            border-radius: var(--sh-radius);
            padding: 30px 24px;
            height: 100%;
            transition: all 0.25s ease;
        }
        .feature-box:hover {
            box-shadow: var(--sh-shadow-md);
            transform: translateY(-4px);
            border-color: #cbd5e1;
        }
        .feature-icon-wrapper {
            width: 52px;
            height: 52px;
            border-radius: 10px;
            background: #eff6ff;
            color: var(--sh-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.35rem;
            margin-bottom: 20px;
        }
        .solution-flow-card {
            border-left: 3px solid var(--sh-accent);
            background: #ffffff;
            padding: 24px 28px;
            border-radius: 0 var(--sh-radius) var(--sh-radius) 0;
            box-shadow: var(--sh-shadow-sm);
            margin-bottom: 20px;
        }
        .step-num {
            display: inline-block;
            width: 32px;
            height: 32px;
            line-height: 32px;
            text-align: center;
            background: var(--sh-accent);
            color: #ffffff;
            font-weight: 700;
            border-radius: 50%;
            font-size: 0.9rem;
            margin-right: 12px;
        }
        .metric-banner {
            background: #0f172a;
            color: #ffffff;
            border-radius: var(--sh-radius);
            padding: 44px 32px;
        }
        .metric-number {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--sh-gold);
            line-height: 1;
            margin-bottom: 8px;
        }
        .testimonial-card {
            background: #ffffff;
            border: 1px solid var(--sh-border);
            border-radius: var(--sh-radius);
            padding: 26px;
            box-shadow: var(--sh-shadow-sm);
            height: 100%;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 18px;
        }
        .user-avatar-badge {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #e2e8f0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--sh-primary);
        }
        .cafe-partner-card {
            background: #ffffff;
            border-radius: var(--sh-radius);
            border: 1px solid var(--sh-border);
            overflow: hidden;
            transition: all 0.25s ease;
        }
        .cafe-partner-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--sh-shadow-md);
        }
        .cafe-img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }
        .site-footer {
            background-color: #0b1120;
            color: #cbd5e1;
            padding: 68px 0 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .footer-col-title {
            color: #ffffff;
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 18px;
            position: relative;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #94a3b8;
            font-size: 0.92rem;
        }
        .footer-links a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            margin-top: 50px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        @media (max-width: 991px) {
            .section-padding { padding: 50px 0; }
            .section-title { font-size: 1.75rem; }
            .category-nav-bar { flex-direction: column; align-items: stretch; }
        }

/* roulang page: category2 */
:root {
      --sh-primary: #0f172a;
      --sh-accent: #2563eb;
      --sh-accent-hover: #1d4ed8;
      --sh-gold: #f59e0b;
      --sh-bg-main: #f8fafc;
      --sh-bg-card: #ffffff;
      --sh-text-title: #0f172a;
      --sh-text-body: #334155;
      --sh-text-muted: #64748b;
      --sh-border: #e2e8f0;
      --sh-radius: 12px;
      --sh-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --sh-shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
      --sh-shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--sh-bg-main);
      color: var(--sh-text-body);
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease-in-out;
    }
    a:hover {
      color: var(--sh-accent);
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--sh-border);
      position: sticky;
      top: 0;
      z-index: 1030;
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .navbar-brand-custom {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--sh-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.5px;
    }
    .navbar-brand-custom .brand-badge {
      font-size: 0.7rem;
      padding: 2px 8px;
      background: #eff6ff;
      color: var(--sh-accent);
      border-radius: 20px;
      font-weight: 600;
      border: 1px solid #bfdbfe;
    }
    .nav-link-custom {
      font-weight: 500;
      color: var(--sh-text-body);
      padding: 8px 16px !important;
      border-radius: 6px;
      transition: all 0.2s;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--sh-accent);
      background-color: #f1f5f9;
    }
    .nav-btn-action {
      background-color: var(--sh-accent);
      color: #ffffff !important;
      font-weight: 600;
      padding: 8px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
    }
    .nav-btn-action:hover {
      background-color: var(--sh-accent-hover);
      transform: translateY(-1px);
    }
    .section-padding {
      padding: 72px 0;
    }
    .section-alt {
      background-color: #ffffff;
    }
    .section-header {
      margin-bottom: 48px;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--sh-accent);
      background: #eff6ff;
      padding: 4px 12px;
      border-radius: 50px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--sh-text-title);
      margin-bottom: 16px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--sh-text-muted);
      max-width: 680px;
      margin: 0 auto;
    }
    /* 分类页特有 Hero：知识付费卡牌型/精品推介结构 */
    .party-hero {
      padding: 60px 0 70px;
      background: radial-gradient(circle at 10% 20%, #eff6ff 0%, #f8fafc 70%);
      border-bottom: 1px solid var(--sh-border);
    }
    .vip-card-box {
      background: #ffffff;
      border-radius: var(--sh-radius);
      box-shadow: var(--sh-shadow-lg);
      border: 1px solid var(--sh-border);
      overflow: hidden;
      transition: all 0.3s ease;
    }
    .vip-card-box:hover {
      transform: translateY(-4px);
    }
    .vip-header-badge {
      background: linear-gradient(135deg, #1e293b, #0f172a);
      color: #f8fafc;
      padding: 12px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .tag-hot {
      background: #ef4444;
      color: #ffffff;
      font-size: 0.72rem;
      font-weight: 700;
      padding: 3px 8px;
      border-radius: 4px;
    }
    /* 叙事转化卡片与步骤 */
    .pain-card {
      background: #ffffff;
      border: 1px dashed #cbd5e1;
      border-radius: var(--sh-radius);
      padding: 28px 24px;
      height: 100%;
      border-left: 4px solid #ef4444;
    }
    .sol-card {
      background: #ffffff;
      border: 1px solid #bfdbfe;
      border-radius: var(--sh-radius);
      padding: 28px 24px;
      height: 100%;
      border-left: 4px solid var(--sh-accent);
      box-shadow: var(--sh-shadow-sm);
    }
    .step-node {
      position: relative;
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      padding: 30px 24px;
      height: 100%;
      transition: transform 0.25s ease;
    }
    .step-node:hover {
      transform: translateY(-4px);
      box-shadow: var(--sh-shadow-md);
      border-color: var(--sh-accent);
    }
    .step-badge {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      background: var(--sh-accent);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
      margin-bottom: 20px;
    }
    .kpi-num {
      font-size: 2.25rem;
      font-weight: 850;
      color: var(--sh-accent);
      line-height: 1.1;
      margin-bottom: 6px;
    }
    .review-bubble {
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      padding: 24px;
      height: 100%;
      box-shadow: var(--sh-shadow-sm);
    }
    .avatar-mini {
      width: 46px;
      height: 46px;
      border-radius: 50%;
      object-fit: cover;
    }
    .crowd-box {
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      padding: 24px;
      transition: all 0.25s;
    }
    .crowd-box:hover {
      border-color: var(--sh-accent);
      background: #f8fafc;
    }
    .post-item-card {
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
      box-shadow: var(--sh-shadow-sm);
    }
    .post-thumb {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }
    .cta-banner {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      border-radius: 16px;
      padding: 48px 36px;
    }
    .site-footer {
      background: #0f172a;
      color: #cbd5e1;
      padding-top: 60px;
      padding-bottom: 24px;
      border-top: 1px solid #1e293b;
    }
    .footer-brand {
      color: #ffffff;
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .footer-col-title {
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: #94a3b8;
      font-size: 0.88rem;
    }
    .footer-links a:hover {
      color: #60a5fa;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      margin-top: 40px;
    }

/* roulang page: category3 */
:root {
      --sh-primary: #0f172a;
      --sh-accent: #2563eb;
      --sh-accent-hover: #1d4ed8;
      --sh-gold: #f59e0b;
      --sh-bg-main: #f8fafc;
      --sh-bg-card: #ffffff;
      --sh-text-title: #0f172a;
      --sh-text-body: #334155;
      --sh-text-muted: #64748b;
      --sh-border: #e2e8f0;
      --sh-radius: 12px;
      --sh-shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
      --sh-shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
      --sh-shadow-lg: 0 12px 30px -4px rgba(15, 23, 42, 0.12);
    }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--sh-bg-main);
      color: var(--sh-text-body);
      line-height: 1.6;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }
    a {
      color: inherit;
      text-decoration: none;
      transition: all 0.2s ease-in-out;
    }
    a:hover {
      color: var(--sh-accent);
    }
    .site-header {
      background: #ffffff;
      border-bottom: 1px solid var(--sh-border);
      position: sticky;
      top: 0;
      z-index: 1030;
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .navbar-brand-custom {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--sh-primary);
      display: flex;
      align-items: center;
      gap: 10px;
      letter-spacing: -0.5px;
    }
    .navbar-brand-custom .brand-badge {
      font-size: 0.7rem;
      padding: 2px 8px;
      background: #eff6ff;
      color: var(--sh-accent);
      border-radius: 20px;
      font-weight: 600;
      border: 1px solid #bfdbfe;
    }
    .nav-link-custom {
      font-weight: 500;
      color: var(--sh-text-body);
      padding: 8px 16px !important;
      border-radius: 6px;
      transition: all 0.2s;
    }
    .nav-link-custom:hover, .nav-link-custom.active {
      color: var(--sh-accent);
      background-color: #f1f5f9;
    }
    .nav-btn-action {
      background-color: var(--sh-accent);
      color: #ffffff !important;
      font-weight: 600;
      padding: 8px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
      display: inline-block;
    }
    .nav-btn-action:hover {
      background-color: var(--sh-accent-hover);
      transform: translateY(-1px);
    }
    .section-padding {
      padding: 72px 0;
    }
    .section-alt {
      background-color: #ffffff;
    }
    .section-header {
      margin-bottom: 44px;
    }
    .section-tag {
      display: inline-block;
      font-size: 0.8rem;
      font-weight: 700;
      text-transform: uppercase;
      color: var(--sh-accent);
      background: #eff6ff;
      padding: 4px 12px;
      border-radius: 50px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 2.1rem;
      font-weight: 800;
      color: var(--sh-text-title);
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.05rem;
      color: var(--sh-text-muted);
      max-width: 680px;
      line-height: 1.7;
    }
    .cat-hero-map {
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
      color: #ffffff;
      padding: 70px 0 85px;
      position: relative;
    }
    .cat-hero-map .badge-geo {
      background: rgba(37, 99, 235, 0.35);
      color: #93c5fd;
      border: 1px solid rgba(147, 197, 253, 0.3);
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 600;
      display: inline-block;
      margin-bottom: 16px;
    }
    .cat-hero-map h1 {
      font-size: 2.6rem;
      font-weight: 850;
      letter-spacing: -0.5px;
      margin-bottom: 18px;
    }
    .cat-hero-map .lead-text {
      color: #cbd5e1;
      font-size: 1.1rem;
      max-width: 700px;
      margin-bottom: 30px;
      line-height: 1.75;
    }
    .district-nav-wrap {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--sh-radius);
      padding: 20px 24px;
      backdrop-filter: blur(10px);
    }
    .district-btn-group {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .district-chip {
      background: rgba(255, 255, 255, 0.08);
      color: #f1f5f9;
      padding: 8px 16px;
      border-radius: 8px;
      font-size: 0.9rem;
      border: 1px solid rgba(255, 255, 255, 0.12);
      transition: all 0.2s ease;
    }
    .district-chip:hover, .district-chip.active {
      background: var(--sh-accent);
      color: #ffffff;
      border-color: var(--sh-accent);
      transform: translateY(-2px);
    }
    .spot-card {
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      overflow: hidden;
      box-shadow: var(--sh-shadow-sm);
      transition: all 0.25s ease;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    .spot-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--sh-shadow-md);
      border-color: #cbd5e1;
    }
    .spot-card img {
      width: 100%;
      height: 220px;
      object-fit: cover;
    }
    .spot-card .card-body {
      padding: 22px;
      flex-grow: 1;
    }
    .spot-card .district-tag {
      font-size: 0.75rem;
      font-weight: 700;
      color: var(--sh-accent);
      background: #eff6ff;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 8px;
    }
    .spot-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--sh-text-title);
      margin-bottom: 10px;
    }
    .spot-card p {
      font-size: 0.92rem;
      color: var(--sh-text-muted);
      line-height: 1.6;
      margin-bottom: 16px;
    }
    .flow-step-box {
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      padding: 28px 24px;
      position: relative;
      height: 100%;
    }
    .step-number {
      font-size: 2.2rem;
      font-weight: 900;
      color: #e2e8f0;
      line-height: 1;
      margin-bottom: 14px;
    }
    .flow-step-box h4 {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--sh-text-title);
      margin-bottom: 10px;
    }
    .metric-strip {
      background: #ffffff;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      padding: 30px;
      box-shadow: var(--sh-shadow-sm);
    }
    .metric-item {
      text-align: center;
      padding: 10px 15px;
    }
    .metric-val {
      font-size: 2.2rem;
      font-weight: 850;
      color: var(--sh-accent);
      line-height: 1.2;
      margin-bottom: 4px;
    }
    .metric-lbl {
      color: var(--sh-text-muted);
      font-size: 0.9rem;
      font-weight: 500;
    }
    .group-interest-card {
      background: #f8fafc;
      border: 1px solid var(--sh-border);
      border-radius: var(--sh-radius);
      padding: 24px;
      transition: all 0.2s;
    }
    .group-interest-card:hover {
      background: #ffffff;
      box-shadow: var(--sh-shadow-sm);
      border-color: #cbd5e1;
    }
    .avatar-pair {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
    }
    .avatar-icon-circle {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #eff6ff;
      color: var(--sh-accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
    }
    .rule-item-box {
      border-left: 3px solid var(--sh-accent);
      background: #ffffff;
      padding: 18px 20px;
      border-radius: 0 var(--sh-radius) var(--sh-radius) 0;
      box-shadow: var(--sh-shadow-sm);
      margin-bottom: 14px;
    }
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--sh-border);
      padding: 60px 0 30px;
    }
    .footer-brand {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--sh-primary);
      margin-bottom: 14px;
    }
    .footer-col-title {
      font-size: 0.95rem;
      font-weight: 700;
      color: var(--sh-text-title);
      margin-bottom: 18px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 10px;
    }
    .footer-links a {
      color: var(--sh-text-muted);
      font-size: 0.9rem;
    }
    .footer-links a:hover {
      color: var(--sh-accent);
    }
    .footer-bottom {
      border-top: 1px solid var(--sh-border);
      padding-top: 25px;
      margin-top: 40px;
    }
    @media (max-width: 991px) {
      .cat-hero-map h1 { font-size: 2.1rem; }
      .section-padding { padding: 50px 0; }
    }
    @media (max-width: 576px) {
      .cat-hero-map h1 { font-size: 1.8rem; }
      .district-btn-group { gap: 6px; }
      .district-chip { padding: 6px 12px; font-size: 0.8rem; }
    }