/* roulang page: index */
:root {
      --primary: #122338;
      --accent: #2b70c9;
      --accent-hover: #1c5296;
      --secondary: #e69138;
      --bg-light: #f7f9fc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --text-main: #1f2937;
      --text-muted: #64748b;
      --radius-sm: 6px;
      --radius-md: 10px;
      --radius-lg: 16px;
      --shadow-soft: 0 4px 20px rgba(18, 35, 56, 0.06);
      --shadow-hover: 0 10px 30px rgba(18, 35, 56, 0.12);
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text-main);
      background-color: #fff;
      line-height: 1.68;
      -webkit-font-smoothing: antialiased;
    }

    a { color: var(--accent); text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--accent-hover); }

    /* 顶部通知条 */
    .top-bar-meta {
      background: var(--primary);
      color: #cbd5e1;
      font-size: 13px;
      padding: 7px 0;
      border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .top-bar-meta a { color: #f1f5f9; margin-left: 14px; font-weight: 500; }
    .top-bar-meta a:hover { color: #60a5fa; }

    /* 主导航 */
    .header-main {
      background: #ffffff;
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .header-wrapper {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }
    .brand-logo {
      font-size: 26px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.5px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .brand-logo span {
      background: var(--accent);
      color: #fff;
      font-size: 11px;
      padding: 2px 7px;
      border-radius: 4px;
      font-weight: 600;
      vertical-align: middle;
    }
    .nav-menu {
      display: flex;
      gap: 28px;
      margin: 0;
      list-style: none;
    }
    .nav-menu li a {
      font-size: 15px;
      color: var(--text-main);
      font-weight: 500;
      padding: 6px 0;
      position: relative;
    }
    .nav-menu li a.active, .nav-menu li a:hover {
      color: var(--accent);
    }
    .nav-menu li a.active::after {
      content: "";
      position: absolute;
      bottom: -10px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
    }
    .nav-action .btn-primary {
      padding: 10px 22px;
      background: var(--primary);
      color: #fff;
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .nav-action .btn-primary:hover {
      background: var(--accent);
      color: #fff;
    }

    /* 旗舰店 Hero 板块 */
    .hero-flagship {
      position: relative;
      background: linear-gradient(135deg, #0e1b2b 0%, #1a3250 100%);
      color: #ffffff;
      padding: 85px 0 110px;
      overflow: hidden;
    }
    .hero-flagship::after {
      content: "";
      position: absolute;
      right: 0;
      bottom: 0;
      width: 45%;
      height: 100%;
      background: radial-gradient(circle at 70% 50%, rgba(43, 112, 201, 0.15), transparent 70%);
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
    }
    .hero-badge {
      display: inline-block;
      background: rgba(43, 112, 201, 0.2);
      border: 1px solid rgba(96, 165, 250, 0.35);
      color: #93c5fd;
      padding: 5px 14px;
      font-size: 13px;
      font-weight: 600;
      border-radius: 30px;
      margin-bottom: 20px;
    }
    .hero-title {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      color: #ffffff;
      margin-bottom: 20px;
    }
    .hero-desc {
      font-size: 16px;
      line-height: 1.8;
      color: #cbd5e1;
      max-width: 680px;
      margin-bottom: 34px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      align-items: center;
    }
    .btn-hero-cta {
      background: var(--accent);
      color: #ffffff;
      padding: 13px 32px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      display: inline-block;
      box-shadow: 0 4px 15px rgba(43, 112, 201, 0.4);
    }
    .btn-hero-cta:hover {
      background: #3b82f6;
      color: #fff;
    }
    .hero-store-nav {
      margin-top: 50px;
      background: rgba(255, 255, 255, 0.05);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 14px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 15px;
    }
    .store-nav-item {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #e2e8f0;
      font-size: 14px;
    }
    .store-nav-item i {
      color: #60a5fa;
      font-size: 18px;
    }

    /* 通用Section */
    .site-section {
      padding: 70px 0;
      position: relative;
    }
    .site-section.bg-subtle {
      background-color: var(--bg-light);
    }
    .site-section.bg-dark {
      background-color: #0b1523;
      color: #fff;
    }
    .section-head {
      margin-bottom: 45px;
    }
    .section-head.center {
      text-align: center;
    }
    .section-tag {
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 1px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 8px;
      display: block;
    }
    .section-title {
      font-size: 28px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 12px;
    }
    .bg-dark .section-title {
      color: #f8fafc;
    }
    .section-intro {
      font-size: 15px;
      color: var(--text-muted);
      max-width: 720px;
      margin: 0 auto;
      line-height: 1.75;
    }
    .bg-dark .section-intro {
      color: #94a3b8;
    }

    /* 痛点排查 */
    .pain-card {
      background: #ffffff;
      border: 1px solid #fee2e2;
      border-radius: var(--radius-md);
      padding: 28px 24px;
      height: 100%;
      box-shadow: var(--shadow-soft);
      transition: transform 0.25s;
    }
    .pain-card:hover { transform: translateY(-3px); }
    .pain-icon {
      width: 48px;
      height: 48px;
      background: #fef2f2;
      color: #ef4444;
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      margin-bottom: 16px;
    }
    .pain-title {
      font-size: 18px;
      font-weight: 700;
      color: #991b1b;
      margin-bottom: 8px;
    }
    .pain-text {
      font-size: 14px;
      color: #4b5563;
      margin: 0;
    }

    /* 解决方案矩阵 */
    .solution-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      height: 100%;
      box-shadow: var(--shadow-soft);
      border-top: 4px solid var(--accent);
    }
    .solution-step {
      font-size: 13px;
      font-weight: 700;
      color: var(--accent);
      margin-bottom: 10px;
      display: block;
    }
    .solution-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 10px;
    }
    .solution-desc {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 0;
    }

    /* 场景演示板块 */
    .scene-block {
      background: #ffffff;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-color);
      margin-bottom: 24px;
    }
    .scene-body {
      padding: 24px;
    }
    .scene-tag {
      background: #eff6ff;
      color: var(--accent);
      font-size: 12px;
      font-weight: 600;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 10px;
    }
    .scene-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .scene-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 优惠券墙 */
    .coupon-card {
      background: #fff;
      border: 1px dashed var(--accent);
      border-radius: var(--radius-md);
      padding: 22px;
      position: relative;
      background: linear-gradient(to right, #ffffff, #f0f7ff);
      box-shadow: var(--shadow-soft);
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .coupon-head {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      border-bottom: 1px dashed #cbd5e1;
      padding-bottom: 14px;
      margin-bottom: 14px;
    }
    .coupon-amount {
      font-size: 32px;
      font-weight: 800;
      color: #d97706;
    }
    .coupon-amount span { font-size: 16px; font-weight: normal; margin-right: 2px; }
    .coupon-rule { font-size: 13px; color: var(--text-muted); }
    .coupon-name { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
    .coupon-condition { font-size: 13px; color: var(--text-muted); margin-bottom: 16px; }
    .btn-claim {
      background: var(--accent);
      color: #fff;
      font-size: 13px;
      font-weight: 600;
      text-align: center;
      padding: 8px 16px;
      border-radius: var(--radius-sm);
      display: block;
    }
    .btn-claim:hover { background: var(--accent-hover); color: #fff; }

    /* 参数速览 */
    .spec-table {
      width: 100%;
      background: #fff;
      border-collapse: collapse;
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-soft);
      border: 1px solid var(--border-color);
    }
    .spec-table th, .spec-table td {
      padding: 14px 18px;
      font-size: 14px;
      text-align: left;
    }
    .spec-table th {
      background: #f1f5f9;
      color: var(--primary);
      font-weight: 600;
      width: 25%;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table td {
      color: #475569;
      border-bottom: 1px solid var(--border-color);
    }
    .spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }

    /* 社会认同与指标 */
    .metric-box {
      text-align: center;
      padding: 24px 10px;
      background: rgba(255,255,255,0.04);
      border: 1px solid rgba(255,255,255,0.08);
      border-radius: var(--radius-md);
    }
    .metric-num {
      font-size: 34px;
      font-weight: 800;
      color: #60a5fa;
      margin-bottom: 4px;
    }
    .metric-label {
      font-size: 13px;
      color: #cbd5e1;
      margin: 0;
    }

    /* 资讯列表 */
    .news-card {
      background: #fff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 22px;
      height: 100%;
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .news-card:hover { box-shadow: var(--shadow-hover); border-color: var(--accent); }
    .news-meta {
      font-size: 12px;
      color: #94a3b8;
      margin-bottom: 8px;
      display: flex;
      gap: 12px;
    }
    .news-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
      line-height: 1.45;
    }
    .news-desc {
      font-size: 13px;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 14px;
    }
    .news-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--accent);
      display: inline-flex;
      align-items: center;
      gap: 4px;
    }

    /* 套餐价格对比 */
    .pricing-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 34px 26px;
      height: 100%;
      box-shadow: var(--shadow-soft);
      position: relative;
      transition: all 0.3s;
    }
    .pricing-card.featured {
      border: 2px solid var(--accent);
      box-shadow: 0 12px 35px rgba(43, 112, 201, 0.15);
    }
    .pricing-card .badge-popular {
      position: absolute;
      top: -12px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--accent);
      color: #fff;
      font-size: 11px;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: 20px;
      letter-spacing: 0.5px;
    }
    .pricing-tier {
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .pricing-target {
      font-size: 13px;
      color: var(--text-muted);
      margin-bottom: 20px;
      min-height: 38px;
    }
    .pricing-cost {
      font-size: 34px;
      font-weight: 800;
      color: var(--primary);
      margin-bottom: 20px;
    }
    .pricing-cost span { font-size: 14px; font-weight: normal; color: var(--text-muted); }
    .pricing-features {
      list-style: none;
      padding: 0;
      margin: 0 0 26px 0;
      border-top: 1px solid var(--border-color);
      padding-top: 20px;
    }
    .pricing-features li {
      font-size: 13px;
      color: #4b5563;
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .pricing-features li i { color: #10b981; }

    /* 合作流程 */
    .flow-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }
    .flow-step-item {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      position: relative;
    }
    .step-idx {
      font-size: 28px;
      font-weight: 800;
      color: #e2e8f0;
      line-height: 1;
      margin-bottom: 10px;
    }
    .step-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 6px;
    }
    .step-desc {
      font-size: 13px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 保障图标条 */
    .guarantee-bar {
      background: #f8fafc;
      border-top: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      padding: 30px 0;
    }
    .guarantee-item {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .guarantee-icon {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #e0f2fe;
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 18px;
      flex-shrink: 0;
    }
    .guarantee-text h4 {
      font-size: 15px;
      font-weight: 700;
      margin: 0 0 2px 0;
      color: var(--primary);
    }
    .guarantee-text p {
      font-size: 12px;
      color: var(--text-muted);
      margin: 0;
    }

    /* 预约转化表单 */
    .consult-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.06);
      border: 1px solid var(--border-color);
      max-width: 820px;
      margin: 0 auto;
    }
    .form-group label {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 6px;
      display: block;
    }
    .form-group input, .form-group select, .form-group textarea {
      width: 100%;
      border: 1px solid #cbd5e1;
      border-radius: var(--radius-sm);
      padding: 10px 14px;
      font-size: 14px;
      color: var(--text-main);
      box-shadow: none;
    }
    .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
      border-color: var(--accent);
      outline: none;
    }
    .btn-submit {
      background: var(--accent);
      color: #fff;
      border: none;
      padding: 12px 30px;
      font-size: 15px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      cursor: pointer;
      width: 100%;
      transition: background 0.25s;
    }
    .btn-submit:hover {
      background: var(--accent-hover);
    }

    /* 统一页脚 */
    .footer-site {
      background: #0d1724;
      color: #94a3b8;
      padding: 60px 0 24px;
      font-size: 13px;
      border-top: 1px solid rgba(255,255,255,0.06);
    }
    .footer-brand {
      font-size: 22px;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 12px;
    }
    .footer-desc {
      line-height: 1.7;
      margin-bottom: 18px;
    }
    .footer-links h4 {
      color: #f1f5f9;
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    .footer-links ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li {
      margin-bottom: 8px;
    }
    .footer-links a {
      color: #94a3b8;
    }
    .footer-links a:hover {
      color: #ffffff;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.08);
      margin-top: 45px;
      padding-top: 20px;
      text-align: center;
      font-size: 12px;
    }

    @media (max-width: 1024px) {
      .hero-title { font-size: 34px; }
      .flow-steps { grid-template-columns: repeat(2, 1fr); }
    }
    @media (max-width: 768px) {
      .header-wrapper { height: 60px; }
      .nav-menu { display: none; }
      .hero-flagship { padding: 50px 0 70px; }
      .hero-title { font-size: 28px; }
      .hero-desc { font-size: 14px; }
      .hero-store-nav { flex-direction: column; align-items: flex-start; }
      .flow-steps { grid-template-columns: 1fr; }
      .consult-card { padding: 22px; }
      .site-section { padding: 48px 0; }
    }