/* roulang page: index */
:root {
      --primary: #1e56a0;
      --primary-hover: #16427d;
      --primary-light: #eaf2fb;
      --accent: #2e86de;
      --text-main: #1f2937;
      --text-muted: #6b7280;
      --text-light: #9ca3af;
      --bg-body: #f8fafc;
      --bg-surface: #ffffff;
      --bg-card: #ffffff;
      --border-subtle: #e2e8f0;
      --border-focus: #93c5fd;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    }

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

    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-body);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.2s ease;
    }

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 20px;
      padding-right: 20px;
    }

    /* 顶部导航：分段标签风格 */
    header.site-header {
      background: var(--bg-surface);
      border-bottom: 1px solid var(--border-subtle);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: var(--shadow-sm);
    }
    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
      fill: var(--primary);
    }
    .nav-segments {
      display: flex;
      background: #f1f5f9;
      padding: 4px;
      border-radius: var(--radius-md);
      gap: 4px;
    }
    .nav-segment-item {
      padding: 8px 18px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: var(--radius-sm);
      transition: background 0.2s ease, color 0.2s ease;
    }
    .nav-segment-item.active,
    .nav-segment-item:hover {
      background: var(--bg-surface);
      color: var(--primary);
      box-shadow: var(--shadow-sm);
    }
    .header-action {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .btn-header {
      padding: 9px 20px;
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
    }
    .btn-header:hover {
      background: var(--primary-hover);
    }

    /* 通用板块排版 */
    section {
      padding: 80px 0;
      position: relative;
    }
    section.section-alt {
      background: #ffffff;
      border-top: 1px solid var(--border-subtle);
      border-bottom: 1px solid var(--border-subtle);
    }
    .section-head {
      margin-bottom: 40px;
      text-align: left;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: var(--primary-light);
      padding: 4px 12px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 820px;
      line-height: 1.7;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 600;
      font-size: 15px;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 4px 12px rgba(30, 86, 160, 0.25);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }
    .btn-secondary {
      background: #fff;
      color: var(--primary);
      border: 1px solid #cbd5e1;
    }
    .btn-secondary:hover {
      background: #f8fafc;
      border-color: #94a3b8;
    }

    /* 1. Hero 蓝图：自然有机柔光首屏，主张一句 + 成分要点 */
    .hero-section {
      padding: 90px 0 80px;
      background: radial-gradient(circle at 85% 15%, rgba(226, 238, 253, 0.65) 0%, rgba(248, 250, 252, 1) 60%), url('/assets/images/90f8c212ab416361.jpg') no-bg;
      background-size: cover;
      background-position: center;
      position: relative;
    }
    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(248, 250, 252, 0.94) 20%, rgba(248, 250, 252, 0.82) 100%);
      backdrop-filter: blur(4px);
    }
    .hero-content {
      position: relative;
      z-index: 10;
      max-width: 860px;
    }
    .hero-content h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: #0f172a;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }
    .hero-content p.hero-summary {
      font-size: 16px;
      line-height: 1.8;
      color: #475569;
      margin-bottom: 32px;
    }
    .hero-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 36px;
    }
    .hero-pill-item {
      display: flex;
      align-items: center;
      gap: 8px;
      background: #fff;
      padding: 8px 16px;
      border-radius: 30px;
      border: 1px solid var(--border-subtle);
      font-size: 14px;
      color: #334155;
      box-shadow: var(--shadow-sm);
    }
    .hero-pill-item svg {
      width: 16px;
      height: 16px;
      fill: var(--primary);
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
    }

    /* 2. KPI 看板板块 */
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .kpi-card {
      background: #fff;
      border: 1px solid var(--border-subtle);
      padding: 28px 24px;
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      text-align: left;
    }
    .kpi-value {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .kpi-label {
      font-size: 15px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .kpi-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 3. 核心痛点诊断板块 (叙事转化流：痛点) */
    .painpoint-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .painpoint-card {
      background: #fff;
      border: 1px solid #fee2e2;
      border-top: 4px solid #ef4444;
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .painpoint-tag {
      font-size: 12px;
      font-weight: 700;
      color: #b91c1c;
      background: #fef2f2;
      padding: 2px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 12px;
    }
    .painpoint-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #1e293b;
    }
    .painpoint-card p {
      font-size: 14px;
      color: #64748b;
      line-height: 1.65;
    }

    /* 4. 服务矩阵 (解决方案) */
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .matrix-card {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .matrix-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .matrix-img {
      height: 170px;
      overflow: hidden;
    }
    .matrix-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .matrix-body {
      padding: 24px;
    }
    .matrix-body h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #1e293b;
    }
    .matrix-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }
    .matrix-features {
      list-style: none;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }
    .matrix-features li {
      font-size: 13px;
      color: #475569;
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 6px;
    }
    .matrix-features li::before {
      content: "•";
      color: var(--primary);
      font-size: 18px;
    }

    /* 5. 方法步骤 (成功路径：发现→匹配→开黑→共创) */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }
    .step-item {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-badge {
      width: 38px;
      height: 38px;
      background: var(--primary-light);
      color: var(--primary);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 16px;
      margin-bottom: 16px;
    }
    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #0f172a;
    }
    .step-item p {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 6. 结果对比 (对比我们 vs 传统无序野队群) */
    .compare-container {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border-subtle);
      font-size: 14px;
    }
    .compare-table th {
      background: #f8fafc;
      font-weight: 700;
      color: #334155;
    }
    .compare-table tr:last-child td {
      border-bottom: none;
    }
    .compare-col-feature {
      width: 25%;
      font-weight: 600;
      color: #1e293b;
    }
    .compare-col-us {
      width: 40%;
      color: var(--primary);
      font-weight: 600;
      background: rgba(234, 242, 251, 0.4);
    }
    .compare-col-traditional {
      width: 35%;
      color: #94a3b8;
    }

    /* 7. 蓝图：众筹预热 / 社区孵化支持板块 */
    .crowd-section {
      background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-lg);
      padding: 40px;
      margin: 40px 0;
    }
    .crowd-progress-wrap {
      margin-bottom: 30px;
    }
    .crowd-meta {
      display: flex;
      justify-content: space-between;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #0f172a;
    }
    .progress-bar-bg {
      height: 14px;
      background: #e2e8f0;
      border-radius: 10px;
      overflow: hidden;
    }
    .progress-bar-fill {
      height: 100%;
      width: 86%;
      background: linear-gradient(90deg, #1e56a0, #38bdf8);
      border-radius: 10px;
    }
    .crowd-tiers {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      margin-bottom: 30px;
    }
    .tier-box {
      background: #fff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      box-shadow: var(--shadow-sm);
    }
    .tier-box h4 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 6px;
      color: #1e293b;
    }
    .tier-goal {
      font-size: 13px;
      color: var(--primary);
      font-weight: 600;
      margin-bottom: 10px;
    }
    .tier-desc {
      font-size: 13px;
      color: #64748b;
      line-height: 1.6;
    }
    .supporters-wall {
      border-top: 1px solid #e2e8f0;
      padding-top: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
    }
    .supporters-tags {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    .supporter-badge {
      background: #fff;
      border: 1px solid #cbd5e1;
      padding: 6px 14px;
      border-radius: 20px;
      font-size: 12px;
      color: #475569;
    }

    /* 8. 适用人群分类矩阵 */
    .persona-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .persona-card {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .persona-role {
      font-size: 16px;
      font-weight: 700;
      color: #0f172a;
      margin-bottom: 8px;
    }
    .persona-quote {
      font-size: 13px;
      color: var(--primary);
      margin-bottom: 12px;
      font-style: italic;
    }
    .persona-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 9. 客户证言 / 口碑评价墙 */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }
    .testimonial-rating {
      color: #f59e0b;
      margin-bottom: 12px;
      font-size: 14px;
    }
    .testimonial-text {
      font-size: 14px;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .testimonial-author {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .author-info h4 {
      font-size: 14px;
      font-weight: 700;
      color: #0f172a;
    }
    .author-info span {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. 竖屏种草板块 (特色UI：精选打卡卡片流) */
    .vertical-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .vertical-card {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-subtle);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
    }
    .vertical-img {
      height: 240px;
      position: relative;
    }
    .vertical-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .vertical-label {
      position: absolute;
      top: 12px;
      left: 12px;
      background: rgba(15, 23, 42, 0.75);
      color: #fff;
      padding: 4px 10px;
      border-radius: 4px;
      font-size: 11px;
      backdrop-filter: blur(2px);
    }
    .vertical-body {
      padding: 18px;
      display: flex;
      flex-direction: column;
      flex-grow: 1;
      justify-content: space-between;
    }
    .vertical-title {
      font-size: 15px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .vertical-snippet {
      font-size: 13px;
      color: #64748b;
      line-height: 1.5;
      margin-bottom: 14px;
    }
    .vertical-action {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 11. 资讯动态板块 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }
    .news-img {
      height: 180px;
    }
    .news-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-content {
      padding: 22px;
    }
    .news-date {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 8px;
    }
    .news-title {
      font-size: 17px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
      line-height: 1.4;
    }
    .news-desc {
      font-size: 13px;
      color: #64748b;
      line-height: 1.6;
    }

    /* 12. 平台保障体系与合规提示条 */
    .safety-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 30px;
    }
    .safety-item {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
    }
    .safety-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 8px;
    }
    .safety-item p {
      font-size: 13px;
      color: #64748b;
      line-height: 1.65;
    }
    .notice-bar {
      background: #f1f5f9;
      border-left: 4px solid var(--primary);
      padding: 16px 20px;
      border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
      font-size: 13px;
      color: #475569;
      line-height: 1.6;
    }

    /* 13. 快速解答 (FAQ) */
    .faq-list {
      max-width: 900px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border-subtle);
      border-radius: var(--radius-md);
      padding: 24px 28px;
      box-shadow: var(--shadow-sm);
    }
    .faq-question {
      font-size: 17px;
      font-weight: 700;
      color: #1e293b;
      margin-bottom: 10px;
    }
    .faq-answer {
      font-size: 14px;
      color: #4b5563;
      line-height: 1.7;
    }

    /* 14. 页面唯一主收口行动 (CTA) */
    .cta-banner {
      background: linear-gradient(135deg, #1e56a0 0%, #153e75 100%);
      color: #fff;
      padding: 60px 40px;
      border-radius: var(--radius-lg);
      text-align: center;
      box-shadow: var(--shadow-lg);
    }
    .cta-banner h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 16px;
    }
    .cta-banner p {
      font-size: 16px;
      max-width: 680px;
      margin: 0 auto 30px;
      color: #cbd5e1;
      line-height: 1.7;
    }
    .btn-cta-light {
      background: #fff;
      color: var(--primary);
      font-weight: 700;
      padding: 14px 36px;
      border-radius: var(--radius-sm);
      display: inline-block;
    }
    .btn-cta-light:hover {
      background: #f8fafc;
      transform: translateY(-2px);
    }

    /* 页脚 */
    footer.site-footer {
      background: #0f172a;
      color: #94a3b8;
      padding: 60px 0 30px;
      font-size: 14px;
      border-top: 1px solid #1e293b;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      color: #fff;
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .footer-brand p {
      font-size: 13px;
      line-height: 1.7;
      max-width: 320px;
      color: #64748b;
    }
    .footer-column h4 {
      color: #f8fafc;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .footer-column ul {
      list-style: none;
    }
    .footer-column ul li {
      margin-bottom: 10px;
    }
    .footer-column ul li a:hover {
      color: #fff;
    }
    .footer-bottom {
      border-top: 1px solid #1e293b;
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: #64748b;
    }

    /* 响应式断点控制 */
    @media (max-width: 1024px) {
      .kpi-grid, .persona-grid, .vertical-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .matrix-grid, .painpoint-grid, .flow-steps, .crowd-tiers, .testimonial-grid, .news-grid, .safety-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .header-inner {
        flex-direction: column;
        height: auto;
        padding: 16px 0;
        gap: 12px;
      }
      .hero-content h1 {
        font-size: 28px;
      }
      .section-title {
        font-size: 24px;
      }
      .kpi-grid, .painpoint-grid, .matrix-grid, .flow-steps, .crowd-tiers, .persona-grid, .testimonial-grid, .vertical-grid, .news-grid, .safety-grid {
        grid-template-columns: 1fr;
      }
      .compare-container {
        overflow-x: auto;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .supporters-wall {
        flex-direction: column;
        align-items: flex-start;
      }
    }