/* roulang page: index */
:root {
      --primary: #0A4D8C;
      --primary-hover: #083c6e;
      --secondary: #0284C7;
      --accent: #059669;
      --accent-light: #ecfdf5;
      --dark: #0F172A;
      --text: #334155;
      --text-light: #64748B;
      --border: #E2E8F0;
      --bg-light: #F8FAFC;
      --white: #FFFFFF;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.07), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
      --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      color: var(--text);
      background-color: var(--white);
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* 顶部通栏 */
    .top-bar {
      background: var(--dark);
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .top-bar-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 10px;
    }
    .top-bar-left span {
      margin-right: 18px;
    }

    /* 导航栏 */
    .header-nav {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(8px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    }
    .nav-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
      color: var(--primary);
    }
    .brand-logo svg {
      width: 34px;
      height: 34px;
      fill: var(--primary);
    }
    .nav-links {
      display: flex;
      gap: 28px;
      align-items: center;
      list-style: none;
    }
    .nav-links a {
      font-size: 15px;
      font-weight: 500;
      color: var(--dark);
    }
    .nav-links a:hover {
      color: var(--primary);
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      padding: 10px 22px;
      background: var(--primary);
      color: var(--white) !important;
      font-weight: 600;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
    }
    .nav-cta-btn:hover {
      background: var(--primary-hover);
      transform: translateY(-1px);
    }

    /* 板块通用 */
    .section-spacing {
      padding: 88px 0;
    }
    .section-bg-light {
      background: var(--bg-light);
    }
    .section-dark {
      background: var(--dark);
      color: #E2E8F0;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px;
    }
    .section-subtitle {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--secondary);
      text-transform: uppercase;
      margin-bottom: 8px;
      background: #E0F2FE;
      padding: 4px 12px;
      border-radius: 99px;
    }
    .section-dark .section-subtitle {
      background: rgba(2, 132, 199, 0.2);
      color: #38BDF8;
    }
    .section-title {
      font-size: 32px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .section-dark .section-title {
      color: var(--white);
    }
    .section-desc {
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.7;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 按钮规范 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 600;
      padding: 12px 28px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
    }
    .btn-primary {
      background: var(--primary);
      color: var(--white);
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }
    .btn-secondary {
      background: var(--white);
      color: var(--primary);
      border-color: var(--border);
    }
    .btn-secondary:hover {
      border-color: var(--primary);
      background: #F8FAFC;
    }
    .btn-accent {
      background: var(--accent);
      color: var(--white);
    }
    .btn-accent:hover {
      background: #047857;
      box-shadow: var(--shadow-md);
    }

    /* 1. Hero 门户双栏 */
    .hero-portal {
      position: relative;
      background: linear-gradient(135deg, rgba(10, 77, 140, 0.95), rgba(15, 23, 42, 0.92)), url('/assets/images/9aacef9c39a74483.png') center/cover no-repeat;
      color: var(--white);
      padding: 96px 0 108px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 50px;
      align-items: center;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      padding: 5px 14px;
      border-radius: 99px;
      font-size: 13px;
      margin-bottom: 20px;
    }
    .hero-title {
      font-size: 40px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 22px;
      letter-spacing: -0.5px;
    }
    .hero-intro {
      font-size: 15px;
      line-height: 1.8;
      color: #E2E8F0;
      margin-bottom: 32px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      margin-bottom: 40px;
      flex-wrap: wrap;
    }
    .hero-badges {
      display: flex;
      gap: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.15);
      padding-top: 24px;
    }
    .hero-badge-item {
      display: flex;
      flex-direction: column;
    }
    .hero-badge-val {
      font-size: 22px;
      font-weight: 700;
      color: #38BDF8;
    }
    .hero-badge-lbl {
      font-size: 12px;
      color: #CBD5E1;
    }
    /* Hero 右侧快捷入口网格 */
    .hero-matrix {
      background: rgba(255, 255, 255, 0.06);
      backdrop-filter: blur(12px);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-lg);
      padding: 30px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .matrix-card {
      background: rgba(15, 23, 42, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: var(--transition);
    }
    .matrix-card:hover {
      background: rgba(2, 132, 199, 0.25);
      border-color: #38BDF8;
      transform: translateY(-3px);
    }
    .matrix-num {
      font-size: 12px;
      color: #38BDF8;
      font-weight: 700;
      margin-bottom: 8px;
    }
    .matrix-title {
      font-size: 16px;
      font-weight: 600;
      color: var(--white);
      margin-bottom: 6px;
    }
    .matrix-desc {
      font-size: 12px;
      color: #94A3B8;
      line-height: 1.5;
    }

    /* 2. 倒计时/工程排期 */
    .schedule-bar {
      background: #F1F5F9;
      border-bottom: 1px solid var(--border);
      padding: 22px 0;
    }
    .schedule-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    .schedule-info {
      display: flex;
      align-items: center;
      gap: 14px;
    }
    .schedule-tag {
      background: var(--accent);
      color: var(--white);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: var(--radius-sm);
    }
    .schedule-text {
      font-size: 14px;
      font-weight: 500;
      color: var(--dark);
    }
    .countdown-slots {
      display: flex;
      gap: 8px;
      align-items: center;
    }
    .slot-box {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 6px 10px;
      min-width: 44px;
      text-align: center;
      font-weight: 700;
      color: var(--primary);
      font-size: 16px;
      box-shadow: var(--shadow-sm);
    }
    .slot-label {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 3. 卖点三连 */
    .grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .pillar-card {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 36px 30px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
      position: relative;
      overflow: hidden;
    }
    .pillar-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: var(--primary);
      transition: var(--transition);
    }
    .pillar-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .pillar-card:hover::before {
      background: var(--accent);
    }
    .pillar-icon {
      width: 52px;
      height: 52px;
      background: #EFF6FF;
      color: var(--primary);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      margin-bottom: 22px;
    }
    .pillar-title {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--dark);
    }
    .pillar-desc {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.6;
      margin-bottom: 20px;
    }
    .pillar-metric {
      font-size: 13px;
      font-weight: 600;
      color: var(--secondary);
      border-top: 1px dashed var(--border);
      padding-top: 14px;
    }

    /* 4. 权益亮点墙 (会员转化蓝图) */
    .privilege-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .privilege-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .privilege-card:hover {
      border-color: var(--secondary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .privilege-badge {
      display: inline-block;
      font-size: 11px;
      font-weight: 700;
      color: var(--accent);
      background: var(--accent-light);
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .privilege-h {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
    }
    .privilege-p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.5;
    }

    /* 5. 权益对比表 */
    .compare-container {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .compare-table th, .compare-table td {
      padding: 18px 24px;
      border-bottom: 1px solid var(--border);
    }
    .compare-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--dark);
    }
    .compare-highlight {
      background: #F0F9FF;
      color: var(--primary);
      font-weight: 600;
    }

    /* 6. 工艺流程步骤 */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
    }
    .step-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px 22px;
      position: relative;
    }
    .step-idx {
      width: 34px;
      height: 34px;
      background: var(--primary);
      color: var(--white);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 16px;
    }
    .step-name {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
    }
    .step-txt {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.55;
    }

    /* 7. 产品卡片与参数规格 */
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .product-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: var(--transition);
    }
    .product-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .product-img {
      height: 210px;
      width: 100%;
      object-fit: cover;
      border-bottom: 1px solid var(--border);
    }
    .product-content {
      padding: 26px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .product-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--secondary);
      margin-bottom: 8px;
    }
    .product-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
    }
    .product-desc {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.5;
      margin-bottom: 18px;
      flex: 1;
    }
    .spec-table {
      width: 100%;
      font-size: 12px;
      margin-bottom: 20px;
      border-top: 1px solid var(--border);
    }
    .spec-table tr td {
      padding: 6px 0;
      border-bottom: 1px dashed var(--border);
    }
    .spec-table tr td:first-child {
      color: var(--text-light);
      width: 45%;
    }
    .spec-table tr td:last-child {
      color: var(--dark);
      font-weight: 600;
      text-align: right;
    }

    /* 8. 场景矩阵 */
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: var(--white);
      border-radius: var(--radius-md);
      padding: 26px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .scenario-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
    }
    .scenario-tag {
      font-size: 12px;
      font-weight: 600;
      color: var(--primary);
      margin-bottom: 8px;
    }
    .scenario-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
    }
    .scenario-desc {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.5;
    }

    /* 9. 全生命周期数据指标条 */
    .metrics-bar {
      background: linear-gradient(90deg, #0A4D8C, #0F172A);
      color: var(--white);
      border-radius: var(--radius-md);
      padding: 44px 30px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 30px;
      text-align: center;
    }
    .metric-val {
      font-size: 38px;
      font-weight: 800;
      color: #38BDF8;
      line-height: 1;
      margin-bottom: 8px;
    }
    .metric-label {
      font-size: 14px;
      color: #E2E8F0;
    }

    /* 10. 用户口碑与评审实录 */
    .testi-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .testi-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .testi-quote {
      font-size: 14px;
      color: var(--text);
      line-height: 1.6;
      margin-bottom: 20px;
      font-style: italic;
    }
    .testi-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }
    .testi-meta h4 {
      font-size: 14px;
      color: var(--dark);
    }
    .testi-meta p {
      font-size: 12px;
      color: var(--text-light);
    }

    /* 11. 工艺资讯动态 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .news-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }
    .news-card:hover {
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }
    .news-img {
      height: 180px;
      width: 100%;
      object-fit: cover;
    }
    .news-body {
      padding: 22px;
    }
    .news-date {
      font-size: 12px;
      color: var(--secondary);
      font-weight: 600;
      margin-bottom: 8px;
    }
    .news-h {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .news-p {
      font-size: 13px;
      color: var(--text-light);
      line-height: 1.5;
    }

    /* 12. 异议拆解 FAQ */
    .faq-wrapper {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 22px 26px;
      box-shadow: var(--shadow-sm);
    }
    .faq-q {
      font-size: 16px;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .faq-q::before {
      content: 'Q';
      background: #E0F2FE;
      color: var(--primary);
      width: 24px;
      height: 24px;
      border-radius: 4px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 13px;
    }
    .faq-a {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.6;
      padding-left: 34px;
    }

    /* 13. 保障条与咨询表单 (收口行动) */
    .guarantee-strip {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-bottom: 50px;
    }
    .guarantee-badge {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 20px;
      display: flex;
      align-items: center;
      gap: 14px;
      box-shadow: var(--shadow-sm);
    }
    .guarantee-icon {
      font-size: 24px;
      color: var(--accent);
    }
    .guarantee-tit {
      font-size: 14px;
      font-weight: 700;
      color: var(--dark);
    }
    .guarantee-sub {
      font-size: 12px;
      color: var(--text-light);
    }

    .form-card {
      background: var(--white);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 44px;
      box-shadow: var(--shadow-md);
      max-width: 900px;
      margin: 0 auto;
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 6px;
    }
    .form-group.full {
      grid-column: span 2;
    }
    .form-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--dark);
    }
    .form-control {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 14px;
      color: var(--dark);
      background: #F8FAFC;
    }
    .form-control:focus {
      outline: none;
      border-color: var(--primary);
      background: var(--white);
    }

    /* 底部固定转化条 */
    .sticky-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(15, 23, 42, 0.94);
      backdrop-filter: blur(8px);
      color: var(--white);
      padding: 14px 0;
      z-index: 99;
      box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.1);
      border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .sticky-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
    }
    .sticky-txt {
      font-size: 14px;
      font-weight: 500;
      color: #E2E8F0;
    }
    .sticky-actions {
      display: flex;
      gap: 12px;
    }

    /* 页脚 */
    .site-footer {
      background: #0B1120;
      color: #94A3B8;
      font-size: 13px;
      padding: 60px 0 90px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.5fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand h3 {
      font-size: 18px;
      color: var(--white);
      margin-bottom: 14px;
    }
    .footer-col h4 {
      font-size: 14px;
      color: var(--white);
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--white);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding-top: 24px;
      text-align: center;
      font-size: 12px;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .grid-3, .privilege-grid, .scenario-grid, .product-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .step-grid, .guarantee-strip {
        grid-template-columns: repeat(2, 1fr);
      }
      .metrics-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }
    @media (max-width: 768px) {
      .section-spacing {
        padding: 56px 0;
      }
      .nav-links {
        display: none;
      }
      .hero-title {
        font-size: 28px;
      }
      .grid-3, .privilege-grid, .scenario-grid, .product-grid, .news-grid, .testi-grid {
        grid-template-columns: 1fr;
      }
      .step-grid, .guarantee-strip {
        grid-template-columns: 1fr;
      }
      .metrics-bar {
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .form-grid {
        grid-template-columns: 1fr;
      }
      .form-group.full {
        grid-column: span 1;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .sticky-bar {
        padding: 10px 0 20px;
      }
    }