/* roulang page: index */
:root {
      --primary-blue: #0b57d0;
      --primary-dark: #083c91;
      --accent-cyan: #00a3ff;
      --bg-light: #f6f9fc;
      --bg-white: #ffffff;
      --text-main: #19213d;
      --text-muted: #5f6c80;
      --border-color: #e2e8f0;
      --card-shadow: 0 12px 32px rgba(11, 87, 208, 0.07);
      --card-shadow-hover: 0 20px 40px rgba(11, 87, 208, 0.14);
      --radius-sm: 8px;
      --radius-md: 16px;
      --radius-lg: 24px;
      --transition: all 0.3s ease-in-out;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-white);
      color: var(--text-main);
      line-height: 1.68;
      overflow-x: hidden;
    }

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

    /* 顶部活动导航 */
    .top-campaign-bar {
      background: linear-gradient(90deg, #083c91, #0b57d0, #0084ff);
      color: #ffffff;
      font-size: 0.875rem;
      padding: 6px 0;
    }

    .main-navbar {
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      position: sticky;
      top: 0;
      z-index: 1020;
      padding: 14px 0;
    }

    .brand-logo-text {
      font-size: 1.55rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      color: var(--primary-blue);
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .brand-logo-text i {
      font-size: 1.75rem;
      color: var(--accent-cyan);
    }

    .nav-btn-primary {
      background-color: var(--primary-blue);
      color: #fff !important;
      padding: 9px 24px;
      border-radius: 40px;
      font-weight: 600;
      box-shadow: 0 4px 14px rgba(11, 87, 208, 0.28);
      border: 1px solid var(--primary-blue);
    }

    .nav-btn-primary:hover {
      background-color: var(--primary-dark);
      box-shadow: 0 6px 20px rgba(11, 87, 208, 0.38);
      transform: translateY(-1px);
    }

    /* Hero 全宽视频遮罩与舞台 */
    .hero-video-section {
      position: relative;
      background: #061126;
      color: #ffffff;
      padding: 90px 0 100px;
      overflow: hidden;
    }

    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 75% 30%, rgba(0, 163, 255, 0.22) 0%, rgba(6, 17, 38, 0.95) 75%),
                  linear-gradient(180deg, rgba(6, 17, 38, 0.85) 0%, #061126 100%);
      z-index: 1;
    }

    .hero-video-mock {
      position: absolute;
      right: -8%;
      top: 10%;
      width: 65%;
      height: 80%;
      border-radius: 24px;
      background: linear-gradient(135deg, #15274d, #0b1a38);
      border: 1px solid rgba(255, 255, 255, 0.12);
      opacity: 0.35;
      transform: perspective(1000px) rotateY(-14deg) rotateX(4deg);
      box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 6px 16px;
      border-radius: 30px;
      font-size: 0.875rem;
      margin-bottom: 22px;
    }

    .hero-title {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-desc {
      font-size: 1.1rem;
      line-height: 1.8;
      color: #c7d5e8;
      margin-bottom: 34px;
      max-width: 640px;
    }

    .hero-action-box {
      display: flex;
      align-items: center;
      gap: 20px;
      flex-wrap: wrap;
    }

    .btn-play-trigger {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      padding: 12px 28px;
      background: #ffffff;
      color: var(--primary-dark);
      font-weight: 700;
      border-radius: 50px;
      transition: var(--transition);
      box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
    }

    .btn-play-trigger:hover {
      background: #eef5ff;
      color: var(--primary-blue);
      transform: translateY(-2px);
    }

    .btn-hero-trial {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 12px 28px;
      background: transparent;
      color: #ffffff;
      font-weight: 600;
      border-radius: 50px;
      border: 1px solid rgba(255, 255, 255, 0.35);
      transition: var(--transition);
    }

    .btn-hero-trial:hover {
      border-color: #ffffff;
      background: rgba(255, 255, 255, 0.12);
      color: #ffffff;
    }

    /* 板块通用布局 */
    .site-section {
      padding: 85px 0;
      position: relative;
    }

    .section-alt-bg {
      background-color: var(--bg-light);
    }

    .section-heading-wrap {
      max-width: 760px;
      margin: 0 auto 52px auto;
      text-align: center;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary-blue);
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 10px;
      background: rgba(11, 87, 208, 0.08);
      padding: 4px 14px;
      border-radius: 30px;
    }

    .section-main-title {
      font-size: 2.15rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 16px;
      letter-spacing: -0.3px;
    }

    .section-lead-text {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.75;
    }

    /* 卡片系统 */
    .custom-card {
      background: var(--bg-white);
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      padding: 34px 28px;
      height: 100%;
      transition: var(--transition);
      position: relative;
    }

    .custom-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--card-shadow-hover);
      border-color: rgba(11, 87, 208, 0.25);
    }

    .card-icon-box {
      width: 60px;
      height: 60px;
      border-radius: 14px;
      background: linear-gradient(135deg, rgba(11, 87, 208, 0.12), rgba(0, 163, 255, 0.15));
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      color: var(--primary-blue);
      margin-bottom: 22px;
    }

    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .card-body-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.68;
      margin-bottom: 0;
    }

    /* 流程步骤样式 */
    .step-number-badge {
      display: inline-block;
      width: 36px;
      height: 36px;
      line-height: 36px;
      text-align: center;
      background: var(--primary-blue);
      color: #fff;
      font-weight: 800;
      border-radius: 50%;
      margin-bottom: 16px;
    }

    /* 时段卡风格组件 */
    .timeslot-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      transition: var(--transition);
      margin-bottom: 16px;
    }

    .timeslot-card:hover {
      border-color: var(--primary-blue);
      box-shadow: var(--card-shadow);
      transform: translateX(4px);
    }

    .timeslot-tag {
      background: rgba(11, 87, 208, 0.08);
      color: var(--primary-blue);
      font-weight: 700;
      font-size: 0.8rem;
      padding: 4px 10px;
      border-radius: 6px;
    }

    /* 数据指标条 */
    .metric-box {
      text-align: center;
      padding: 24px;
      border-radius: var(--radius-md);
      background: #ffffff;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
    }

    .metric-value {
      font-size: 2.5rem;
      font-weight: 800;
      color: var(--primary-blue);
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .metric-label {
      font-size: 0.92rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    /* 专家团队卡 */
    .team-avatar-box {
      width: 76px;
      height: 76px;
      border-radius: 50%;
      background: #e8f0fe;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
      color: var(--primary-blue);
      margin-bottom: 18px;
    }

    /* 对比表格选型 */
    .pricing-table-wrap {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      overflow: hidden;
    }

    .pricing-header-col {
      padding: 28px;
      border-bottom: 1px solid var(--border-color);
    }

    .pricing-header-col.highlight-tier {
      background: #f0f7ff;
      border-top: 4px solid var(--primary-blue);
    }

    .table-check-item {
      padding: 16px 20px;
      border-bottom: 1px solid #f1f5f9;
      font-size: 0.92rem;
    }

    /* 预约与线索表单 */
    .booking-form-card {
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: 0 16px 40px rgba(11, 87, 208, 0.1);
      padding: 44px;
    }

    .form-control-custom {
      border: 1px solid #cbd5e1;
      border-radius: 10px;
      padding: 12px 16px;
      font-size: 0.95rem;
    }

    .form-control-custom:focus {
      border-color: var(--primary-blue);
      box-shadow: 0 0 0 3px rgba(11, 87, 208, 0.15);
    }

    /* 资质证书与评价墙 */
    .testimonial-bubble {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border-color);
      box-shadow: var(--card-shadow);
      position: relative;
    }

    .quote-icon {
      font-size: 1.8rem;
      color: rgba(11, 87, 208, 0.2);
      margin-bottom: 12px;
    }

    /* 页脚 */
    .site-footer {
      background: #091325;
      color: #8fa0b5;
      padding: 70px 0 35px;
      font-size: 0.92rem;
      border-top: 1px solid #17243c;
    }

    .footer-heading {
      color: #ffffff;
      font-size: 1.05rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-links-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-links-list li {
      margin-bottom: 12px;
    }

    .footer-links-list a:hover {
      color: #ffffff;
      text-decoration: underline;
    }

    .footer-bottom-bar {
      border-top: 1px solid #1a2944;
      margin-top: 50px;
      padding-top: 25px;
      font-size: 0.85rem;
      color: #63768d;
    }

    @media (max-width: 991.98px) {
      .hero-title {
        font-size: 2.2rem;
      }
      .site-section {
        padding: 60px 0;
      }
      .hero-video-mock {
        display: none;
      }
      .booking-form-card {
        padding: 26px;
      }
    }