/* roulang page: index */
:root {
      --primary: #0A5C36;
      --primary-dark: #074226;
      --primary-light: #0f7a49;
      --accent: #10B981;
      --accent-gold: #EAB308;
      --bg-main: #F8FAFC;
      --bg-card: #FFFFFF;
      --bg-dark: #0B1320;
      --bg-dark-alt: #1E293B;
      --text-main: #0F172A;
      --text-muted: #334155;
      --text-sub: #64748B;
      --border-color: #E2E8F0;
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-pill: 9999px;
      --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
      --shadow-hover: 0 12px 30px -4px rgba(10, 92, 54, 0.15);
      --transition: all 0.25s ease-in-out;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-main);
      color: var(--text-muted);
      line-height: 1.75;
      letter-spacing: 0.02em;
      -webkit-font-smoothing: antialiased;
    }

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

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

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* 顶部公告条 */
    .topbar {
      background-color: #062b1a;
      color: #94A3B8;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }
    .topbar-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
    }
    .topbar-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: #A7F3D0;
    }
    .pulse-dot {
      width: 8px;
      height: 8px;
      background-color: var(--accent);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent);
    }

    /* 主导航 */
    .site-header {
      background-color: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
    }
    .nav-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 74px;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 800;
      color: var(--primary);
      letter-spacing: -0.01em;
    }
    .brand-logo svg {
      width: 32px;
      height: 32px;
      fill: var(--primary);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--primary);
      border-radius: var(--radius-pill);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 600;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }
    .btn-primary {
      background-color: var(--primary);
      color: #FFFFFF;
      box-shadow: 0 4px 14px rgba(10, 92, 54, 0.25);
    }
    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
    }
    .btn-outline {
      border-color: var(--border-color);
      color: var(--text-main);
      background-color: #FFFFFF;
    }
    .btn-outline:hover {
      border-color: var(--primary);
      color: var(--primary);
    }
    .btn-accent {
      background-color: var(--accent);
      color: #064E3B;
      font-weight: 700;
    }
    .btn-accent:hover {
      background-color: #34D399;
    }

    /* 统一 Section 标准 */
    .section-wrap {
      padding: 80px 0;
      border-bottom: 1px solid var(--border-color);
      position: relative;
    }
    .section-alt {
      background-color: #FFFFFF;
    }
    .section-dark {
      background-color: var(--bg-dark);
      color: #94A3B8;
      border-bottom-color: rgba(255, 255, 255, 0.05);
    }
    .section-head {
      margin-bottom: 48px;
      max-width: 820px;
    }
    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      color: var(--primary);
      background-color: #E6F4EA;
      padding: 4px 14px;
      border-radius: var(--radius-pill);
      margin-bottom: 14px;
      text-transform: uppercase;
    }
    .section-dark .section-tag {
      background-color: rgba(16, 185, 129, 0.15);
      color: var(--accent);
    }
    .section-title {
      font-size: 32px;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 16px;
    }
    .section-dark .section-title {
      color: #FFFFFF;
    }
    .section-desc {
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.75;
    }
    .section-dark .section-desc {
      color: #94A3B8;
    }

    /* 板块 1: Hero 首屏 */
    .hero-banner {
      background: linear-gradient(135deg, rgba(6, 43, 26, 0.94) 0%, rgba(11, 19, 32, 0.92) 100%), url('/assets/images/269f621b586d0900.jpg') center/cover no-repeat;
      color: #FFFFFF;
      padding: 90px 0 70px;
      position: relative;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 48px;
      align-items: center;
    }
    .hero-h1 {
      font-size: 42px;
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 20px;
      color: #FFFFFF;
    }
    .hero-lead {
      font-size: 17px;
      color: #CBD5E1;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-checklist {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-bottom: 36px;
      list-style: none;
    }
    .check-item {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: #E2E8F0;
    }
    .check-icon {
      color: var(--accent);
      font-weight: bold;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    .hero-board {
      background: rgba(30, 41, 59, 0.85);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-md);
      padding: 24px;
      backdrop-filter: blur(8px);
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }
    .board-header {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding-bottom: 12px;
      margin-bottom: 16px;
      font-size: 13px;
      color: #94A3B8;
    }
    .match-demo {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 12px;
      background: rgba(15, 23, 42, 0.6);
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
      border-left: 3px solid var(--accent);
    }
    .match-team {
      font-weight: 600;
      font-size: 15px;
    }
    .match-score {
      font-weight: 800;
      color: var(--accent-gold);
      font-size: 18px;
      letter-spacing: 2px;
    }
    .match-tag {
      font-size: 11px;
      background: rgba(16, 185, 129, 0.2);
      color: var(--accent);
      padding: 2px 6px;
      border-radius: 4px;
    }

    /* 板块 2: 资料目录区 */
    .catalog-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .catalog-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .catalog-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: var(--primary);
      transform: translateY(-4px);
    }
    .catalog-idx {
      font-size: 12px;
      font-weight: 800;
      color: var(--primary);
      background: #E6F4EA;
      display: inline-block;
      padding: 2px 8px;
      border-radius: 4px;
      margin-bottom: 12px;
    }
    .catalog-title {
      font-size: 17px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }
    .catalog-desc {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 板块 3: 价值点卖点三连 */
    .values-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .value-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      position: relative;
      transition: var(--transition);
    }
    .value-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .value-icon {
      width: 52px;
      height: 52px;
      border-radius: 10px;
      background: #E6F4EA;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      margin-bottom: 20px;
    }
    .value-title {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .value-desc {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 板块 4: 关键图表看板 */
    .chart-layout {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      align-items: center;
    }
    .chart-visual {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      box-shadow: var(--shadow-card);
    }
    .kpi-row {
      display: flex;
      justify-content: space-between;
      border-bottom: 1px solid #F1F5F9;
      padding: 14px 0;
    }
    .kpi-row:last-child {
      border-bottom: none;
    }
    .kpi-label {
      font-size: 14px;
      color: var(--text-sub);
    }
    .kpi-val {
      font-size: 15px;
      font-weight: 700;
      color: var(--primary);
    }
    .progress-bar-wrap {
      margin-top: 6px;
      background: #E2E8F0;
      height: 6px;
      border-radius: 3px;
      overflow: hidden;
    }
    .progress-bar {
      height: 100%;
      background: var(--primary);
      border-radius: 3px;
    }

    /* 板块 5: 核心优势六矩阵 */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .feature-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: var(--transition);
    }
    .feature-card:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .feature-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .feature-meta {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
    }

    /* 板块 6: 场景演示卡片 */
    .scenes-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scene-box {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      box-shadow: var(--shadow-card);
    }
    .scene-thumb {
      height: 180px;
      position: relative;
      overflow: hidden;
    }
    .scene-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }
    .scene-box:hover .scene-thumb img {
      transform: scale(1.05);
    }
    .scene-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .scene-name {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .scene-detail {
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.6;
      margin-bottom: 16px;
      flex: 1;
    }
    .scene-link {
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
    }

    /* 板块 7: 统计数字条 */
    .stats-bar {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      text-align: center;
    }
    .stat-item {
      padding: 24px;
      background: rgba(255, 255, 255, 0.03);
      border-radius: var(--radius-md);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }
    .stat-number {
      font-size: 38px;
      font-weight: 800;
      color: #FFFFFF;
      line-height: 1;
      margin-bottom: 10px;
    }
    .stat-number span {
      color: var(--accent);
      font-size: 22px;
    }
    .stat-label {
      font-size: 14px;
      color: #94A3B8;
    }

    /* 板块 8: 产品体系方案 */
    .plans-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .plan-card {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 32px 24px;
      display: flex;
      flex-direction: column;
      position: relative;
    }
    .plan-card.featured {
      border: 2px solid var(--primary);
      box-shadow: 0 10px 30px rgba(10, 92, 54, 0.12);
    }
    .plan-badge {
      position: absolute;
      top: -12px;
      right: 20px;
      background: var(--primary);
      color: #FFFFFF;
      font-size: 12px;
      font-weight: 700;
      padding: 3px 12px;
      border-radius: var(--radius-pill);
    }
    .plan-tier {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .plan-desc {
      font-size: 14px;
      color: var(--text-sub);
      margin-bottom: 20px;
      min-height: 44px;
    }
    .plan-features {
      list-style: none;
      margin-bottom: 28px;
      flex: 1;
    }
    .plan-feature-item {
      font-size: 14px;
      color: var(--text-muted);
      margin-bottom: 10px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .plan-feature-item::before {
      content: "✓";
      color: var(--primary);
      font-weight: 800;
    }

    /* 板块 9: 资讯证据流 */
    .news-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .news-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .news-thumb {
      height: 140px;
      background: #E2E8F0;
    }
    .news-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .news-info {
      padding: 16px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .news-time {
      font-size: 12px;
      color: var(--text-sub);
      margin-bottom: 6px;
    }
    .news-heading {
      font-size: 15px;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .news-brief {
      font-size: 13px;
      color: var(--text-sub);
      line-height: 1.6;
      flex: 1;
    }

    /* 板块 10: 对比差异矩阵 */
    .table-container {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow-x: auto;
    }
    .diff-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      font-size: 14px;
    }
    .diff-table th, .diff-table td {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border-color);
    }
    .diff-table th {
      background: #F8FAFC;
      font-weight: 700;
      color: var(--text-main);
    }
    .diff-table td:first-child {
      font-weight: 600;
      color: var(--text-main);
    }
    .diff-high {
      color: var(--primary);
      font-weight: 700;
    }

    /* 板块 11: 异议拆解 FAQ */
    .faq-list {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .faq-item {
      background: #FFFFFF;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
    }
    .faq-summary {
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      list-style: none;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker {
      display: none;
    }
    .faq-arrow {
      transition: transform 0.25s ease;
      color: var(--text-sub);
    }
    details[open] .faq-arrow {
      transform: rotate(180deg);
    }
    .faq-content {
      padding: 0 24px 20px;
      font-size: 14px;
      color: var(--text-sub);
      line-height: 1.75;
    }

    /* 板块 12: 领取表单与行动召唤 */
    .form-container-box {
      background: linear-gradient(135deg, #0A5C36 0%, #063c22 100%);
      border-radius: 16px;
      padding: 56px 48px;
      color: #FFFFFF;
      box-shadow: 0 20px 40px rgba(10, 92, 54, 0.2);
    }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
    }
    .form-text h3 {
      font-size: 30px;
      font-weight: 800;
      margin-bottom: 16px;
      line-height: 1.3;
    }
    .form-text p {
      font-size: 15px;
      color: #CBD5E1;
      line-height: 1.7;
      margin-bottom: 24px;
    }
    .trial-rights {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .right-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: #E2E8F0;
    }
    .form-card {
      background: #FFFFFF;
      border-radius: var(--radius-md);
      padding: 32px;
      color: var(--text-main);
    }
    .form-group {
      margin-bottom: 16px;
    }
    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 6px;
      color: var(--text-main);
    }
    .form-input {
      width: 100%;
      height: 44px;
      padding: 0 14px;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-sm);
      font-size: 14px;
      outline: none;
      transition: var(--transition);
    }
    .form-input:focus {
      border-color: var(--primary);
box-shadow: 0 0 0 3px rgba(10, 92, 54, 0.12);
    }
    .form-btn {
      width: 100%;
      height: 46px;
      margin-top: 8px;
    }

    /* 浮动与底部固定条 */
    .sticky-bottom-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      width: 100%;
      background: rgba(11, 19, 32, 0.95);
      backdrop-filter: blur(8px);
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      padding: 12px 24px;
      z-index: 999;
      transform: translateY(100%);
      transition: transform 0.3s ease;
    }
    .sticky-bottom-bar.show {
      transform: translateY(0);
    }
    .sticky-inner {
      max-width: 1240px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }
    .sticky-text {
      color: #FFFFFF;
      font-size: 14px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    /* 全局页脚 */
    .site-footer {
      background-color: #06150e;
      color: #94A3B8;
      padding: 64px 0 32px;
      font-size: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-bottom: 90px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 48px;
    }
    .footer-brand-title {
      font-size: 18px;
      font-weight: 800;
      color: #FFFFFF;
      margin-bottom: 14px;
    }
    .footer-desc {
      font-size: 13px;
      line-height: 1.8;
      color: #64748B;
      margin-bottom: 18px;
    }
    .footer-heading {
      font-size: 15px;
      font-weight: 700;
      color: #FFFFFF;
      margin-bottom: 16px;
    }
    .footer-links {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 12px;
      color: #64748B;
    }

    /* 移动端菜单按钮与响应式 */
    .mobile-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 24px;
      color: var(--text-main);
      cursor: pointer;
    }

    @media (max-width: 1024px) {
      .catalog-grid, .news-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .values-grid, .features-grid, .scenes-grid, .plans-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .chart-layout, .hero-grid, .form-grid {
        grid-template-columns: 1fr;
      }
      .stats-bar {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 768px) {
      .topbar {
        display: none;
      }
      .mobile-toggle {
        display: block;
      }
      .nav-links {
        position: absolute;
        top: 74px;
        left: 0;
        width: 100%;
        background: #FFFFFF;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        display: none;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
      }
      .nav-links.open {
        display: flex;
      }
      .hero-h1 {
        font-size: 30px;
      }
      .section-wrap {
        padding: 56px 0;
      }
      .catalog-grid, .values-grid, .features-grid, .scenes-grid, .plans-grid, .news-grid, .stats-bar {
        grid-template-columns: 1fr;
      }
      .hero-checklist {
        grid-template-columns: 1fr;
      }
      .form-container-box {
        padding: 32px 20px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .sticky-text span {
        display: none;
      }
    }