/* roulang page: index */
:root {
      --primary: #1E40AF;
      --primary-hover: #1D4ED8;
      --accent: #0284C7;
      --accent-warm: #F59E0B;
      --bg-main: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0F172A;
      --text-main: #0F172A;
      --text-body: #334155;
      --text-muted: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.05), 0 1px 2px -1px rgba(15, 23, 42, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.07);
      --shadow-hover: 0 12px 28px -6px rgba(30, 64, 175, 0.12);
      --max-width: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      -webkit-font-smoothing: antialiased;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-body);
      line-height: 1.65;
      font-size: 16px;
      overflow-x: hidden;
    }

    a {
      text-decoration: none;
      color: inherit;
      transition: all 0.25s ease;
    }

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

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部信息栏 */
    .topbar {
      background-color: #F1F5F9;
      border-bottom: 1px solid var(--border-color);
      font-size: 13px;
      color: var(--text-muted);
      padding: 8px 0;
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .topbar-left span {
      margin-right: 18px;
    }
    .topbar-right span {
      margin-left: 18px;
    }

    /* 导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(226, 232, 240, 0.8);
      box-shadow: 0 2px 10px rgba(15, 23, 42, 0.03);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 72px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .logo-badge {
      background: var(--primary);
      color: #fff;
      padding: 3px 8px;
      font-size: 11px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      letter-spacing: 0.5px;
    }
    .nav-links {
      display: flex;
      align-items: center;
      list-style: none;
      gap: 28px;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      padding: 6px 0;
      position: relative;
    }
    .nav-links a:hover,
    .nav-links a.active {
      color: var(--primary);
    }
    .nav-links a.active::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--primary);
      border-radius: 2px;
    }
    .header-action .btn-primary {
      padding: 10px 20px;
      font-size: 14px;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: var(--radius-md);
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
      text-align: center;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
    }
    .btn-primary:hover {
      background-color: var(--primary-hover);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(30, 64, 175, 0.3);
    }
    .btn-outline {
      background-color: #FFFFFF;
      color: var(--primary);
      border-color: var(--primary);
    }
    .btn-outline:hover {
      background-color: #EFF6FF;
      transform: translateY(-2px);
    }

    /* 通用板块与排版 */
    section {
      padding: 85px 0;
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #F8FAFC;
    }
    .section-header {
      text-align: center;
      max-width: 780px;
      margin: 0 auto 52px;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      background-color: #E0F2FE;
      padding: 4px 14px;
      border-radius: 20px;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }
    .section-dark .section-tag {
      background-color: rgba(2, 132, 199, 0.2);
      color: #38BDF8;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      line-height: 1.35;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 1. Hero 蓝图：预约到店、服务卖点 + 时段选择视觉 + 预约 CTA */
    .hero-section {
      background: linear-gradient(135deg, rgba(255,255,255,0.92) 0%, rgba(240,249,255,0.88) 100%), url('/assets/images/c5c2d478a31fd6ec.jpg') center/cover no-repeat;
      padding: 90px 0 100px;
      border-bottom: 1px solid var(--border-color);
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .hero-content h1 {
      font-size: 42px;
      line-height: 1.25;
      color: var(--text-main);
      font-weight: 800;
      margin-bottom: 20px;
    }
    .hero-content h1 span {
      color: var(--primary);
    }
    .hero-intro {
      font-size: 17px;
      color: var(--text-body);
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-features-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-bottom: 32px;
    }
    .hero-feat-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 15px;
      color: var(--text-main);
      font-weight: 500;
    }
    .feat-icon {
      width: 22px;
      height: 22px;
      background: #DBEAFE;
      color: var(--primary);
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: bold;
    }

    /* 预约排期卡片 */
    .hero-booking-card {
      background: #FFFFFF;
      border-radius: var(--radius-lg);
      padding: 34px 30px;
      box-shadow: 0 18px 40px -10px rgba(15, 23, 42, 0.12);
      border: 1px solid #E2E8F0;
    }
    .card-head-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .card-head-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 22px;
    }
    .form-group {
      margin-bottom: 18px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      color: var(--text-body);
      margin-bottom: 8px;
    }
    .form-select, .form-input {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border-radius: var(--radius-sm);
      border: 1px solid #CBD5E1;
      font-size: 14px;
      color: var(--text-main);
      background-color: #F8FAFC;
      outline: none;
      transition: border-color 0.2s;
    }
    .form-select:focus, .form-input:focus {
      border-color: var(--primary);
      background-color: #FFFFFF;
    }
    .time-slot-picker {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
    }
    .slot-btn {
      padding: 9px 0;
      text-align: center;
      font-size: 13px;
      font-weight: 500;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      background: #FFFFFF;
      color: var(--text-body);
      cursor: pointer;
      transition: all 0.2s;
    }
    .slot-btn.active, .slot-btn:hover {
      border-color: var(--primary);
      background-color: #EFF6FF;
      color: var(--primary);
      font-weight: 600;
    }

    /* 2. 内容日历板块 */
    .calendar-container {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .calendar-card {
      background: var(--bg-card);
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .calendar-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .calendar-date-badge {
      display: inline-block;
      font-size: 12px;
      font-weight: 700;
      color: var(--primary);
      background: #DBEAFE;
      padding: 4px 10px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .calendar-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .calendar-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 3. 热门专题板块 (含本地封面图) */
    .topics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .topic-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      overflow: hidden;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: transform 0.25s, box-shadow 0.25s;
    }
    .topic-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-hover);
    }
    .topic-img-wrapper {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .topic-img-wrapper img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .topic-card:hover .topic-img-wrapper img {
      transform: scale(1.05);
    }
    .topic-content {
      padding: 24px;
      flex-grow: 1;
      display: flex;
      flex-direction: column;
    }
    .topic-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 8px;
    }
    .topic-content h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .topic-content p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 18px;
      flex-grow: 1;
    }
    .topic-btn {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 4. 痛点与解决方案 (叙事转化流 C) */
    .pain-sol-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px;
    }
    .pain-box {
      background: #FEF2F2;
      border: 1px solid #FECACA;
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .sol-box {
      background: #F0FDF4;
      border: 1px solid #BBF7D0;
      border-radius: var(--radius-md);
      padding: 30px;
    }
    .pain-box h3 {
      color: #991B1B;
      font-size: 20px;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .sol-box h3 {
      color: #166534;
      font-size: 20px;
      margin-bottom: 16px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .ps-list {
      list-style: none;
    }
    .ps-list li {
      margin-bottom: 14px;
      font-size: 14px;
      line-height: 1.6;
    }
    .pain-box li {
      color: #7F1D1D;
    }
    .sol-box li {
      color: #14532D;
    }

    /* 5. 方法步骤 (叙事转化流) */
    .steps-timeline {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px 20px;
      position: relative;
      box-shadow: var(--shadow-sm);
    }
    .step-number {
      width: 36px;
      height: 36px;
      background: var(--primary);
      color: #FFFFFF;
      font-weight: 700;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 16px;
    }
    .step-item h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .step-item p {
      font-size: 13px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 6. 观点解读板块 */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 26px;
    }
    .insight-card {
      background: var(--bg-card);
      border-left: 4px solid var(--primary);
      border-radius: 0 var(--radius-md) var(--radius-md) 0;
      padding: 26px;
      border-top: 1px solid var(--border-color);
      border-right: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .insight-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .insight-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
    }

    /* 7. 资讯板块 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .news-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 24px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .news-meta {
      font-size: 12px;
      color: var(--text-muted);
      margin-bottom: 10px;
    }
    .news-card h3 {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.45;
    }
    .news-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.6;
    }

    /* 8. 媒体精选与社会认同 */
    .media-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .media-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      padding: 20px;
      text-align: center;
    }
    .media-source {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .media-quote {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* 9. 数据分析与关键成效指标条 */
    .stats-strip {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 44px 30px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      box-shadow: var(--shadow-sm);
      text-align: center;
    }
    .stat-item {
      position: relative;
    }
    .stat-item:not(:last-child)::after {
      content: '';
      position: absolute;
      right: 0;
      top: 20%;
      height: 60%;
      width: 1px;
      background-color: var(--border-color);
    }
    .stat-value {
      font-size: 40px;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 8px;
      font-feature-settings: "tnum";
    }
    .stat-label {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 4px;
    }
    .stat-desc {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 10. 适用人群与客户证言 (叙事转化流) */
    .testimonial-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .testimonial-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }
    .testi-role {
      font-size: 12px;
      font-weight: 600;
      color: var(--accent);
      margin-bottom: 8px;
    }
    .testimonial-card p {
      font-size: 14px;
      color: var(--text-body);
      line-height: 1.65;
      margin-bottom: 16px;
      font-style: italic;
    }
    .testi-author {
      font-size: 13px;
      font-weight: 700;
      color: var(--text-main);
    }

    /* 11. 平台保障体系 */
    .security-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .sec-card {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 28px;
    }
    .sec-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 10px;
    }
    .sec-card p {
      font-size: 14px;
      color: #94A3B8;
      line-height: 1.65;
    }

    /* 12. 拼团与运营活动转化 (蓝图要素) */
    .groupbuy-box {
      background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 100%);
      border-radius: var(--radius-lg);
      padding: 40px;
      color: #FFFFFF;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 40px;
      align-items: center;
    }
    .groupbuy-content h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    .groupbuy-content p {
      font-size: 15px;
      color: #DBEAFE;
      line-height: 1.7;
      margin-bottom: 20px;
    }
    .progress-bar-bg {
      background: rgba(255, 255, 255, 0.2);
      border-radius: 10px;
      height: 10px;
      width: 100%;
      overflow: hidden;
      margin-bottom: 8px;
    }
    .progress-bar-val {
      background: var(--accent-warm);
      height: 100%;
      width: 82%;
      border-radius: 10px;
    }
    .progress-meta {
      font-size: 13px;
      color: #BFDBFE;
    }
    .groupbuy-cta-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 26px;
      color: var(--text-main);
      text-align: center;
    }
    .groupbuy-price {
      font-size: 30px;
      font-weight: 800;
      color: #DC2626;
      margin-bottom: 6px;
    }

    /* 13. 订阅与收口行动区 (整页唯一集中收口行动) */
    .cta-subscribe-section {
      background-color: #EFF6FF;
      border-top: 1px solid #DBEAFE;
      padding: 70px 0;
    }
    .sub-box {
      max-width: 680px;
      margin: 0 auto;
      text-align: center;
    }
    .sub-box h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .sub-box p {
      font-size: 15px;
      color: var(--text-muted);
      margin-bottom: 26px;
    }
    .sub-form {
      display: flex;
      gap: 12px;
      max-width: 520px;
      margin: 0 auto 16px;
    }
    .sub-form input {
      flex-grow: 1;
      height: 48px;
      padding: 0 16px;
      border-radius: var(--radius-md);
      border: 1px solid #CBD5E1;
      font-size: 15px;
      outline: none;
    }
    .sub-form input:focus {
      border-color: var(--primary);
    }
    .sub-form button {
      height: 48px;
      padding: 0 26px;
      white-space: nowrap;
    }
    .privacy-notice {
      font-size: 12px;
      color: var(--text-muted);
    }

    /* 页脚规范 */
    .site-footer {
      background-color: #0B132B;
      color: #94A3B8;
      font-size: 14px;
      padding: 60px 0 30px;
      border-top: 1px solid #1E293B;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-col h4 {
      color: #F8FAFC;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col ul li {
      margin-bottom: 10px;
    }
    .footer-col ul li a:hover {
      color: #FFFFFF;
    }
    .footer-bottom {
      border-top: 1px solid #1E293B;
      padding-top: 26px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 13px;
    }
    .footer-bottom a {
      color: #94A3B8;
      margin-left: 18px;
    }

    /* 移动端菜单控制 */
    .menu-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    /* 响应式断点适配 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }
      .calendar-container, .media-grid, .steps-timeline {
        grid-template-columns: repeat(2, 1fr);
      }
      .topics-grid, .news-grid, .insights-grid, .testimonial-grid, .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .stats-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .stat-item:nth-child(2)::after {
        display: none;
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .groupbuy-box {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .menu-toggle {
        display: block;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.08);
        border-bottom: 1px solid var(--border-color);
        gap: 16px;
      }
      .nav-links.active {
        display: flex;
      }
      .header-action {
        display: none;
      }
      .hero-content h1 {
        font-size: 30px;
      }
      .section-title {
        font-size: 26px;
      }
      .pain-sol-grid, .topics-grid, .calendar-container, .steps-timeline, 
      .news-grid, .insights-grid, .media-grid, .testimonial-grid, .security-grid {
        grid-template-columns: 1fr;
      }
      .stats-strip {
        grid-template-columns: 1fr;
      }
      .stat-item::after {
        display: none !important;
      }
      .sub-form {
        flex-direction: column;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
      }
      .footer-bottom a {
        margin: 0 8px;
      }
    }