/* roulang page: index */
:root {
      --primary-start: #6320EE;
      --primary-end: #8B5CF6;
      --accent-green: #00F5D4;
      --accent-pink: #FF007F;
      --base-light: #F8F9FD;
      --text-main: #0F172A;
      --text-muted: #64748B;
      --dark-block: #0B0E17;
      --card-radius: 20px;
      --badge-radius: 9999px;
      --shadow-soft: 0 10px 30px -10px rgba(99, 32, 238, 0.12);
      --shadow-hover: 0 18px 36px -12px rgba(99, 32, 238, 0.22);
      --border-subtle: 1px solid rgba(99, 32, 238, 0.1);
    }

    * { box-sizing: border-box; }
    body {
      margin: 0;
      padding: 0;
      background-color: var(--base-light);
      color: var(--text-main);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      line-height: 1.6;
      overflow-x: hidden;
    }

    a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
    a:hover { color: var(--primary-start); }
    img { max-width: 100%; height: auto; display: block; }

    /* 顶部杂志刊头导航 */
    .site-masthead-header {
      background: #FFFFFF;
      border-bottom: 1px solid rgba(0,0,0,0.06);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 2px 10px rgba(0,0,0,0.03);
    }
    .masthead-row-top {
      padding: 12px 0 8px;
      border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    .masthead-logo {
      font-size: 1.45rem;
      font-weight: 800;
      letter-spacing: -0.5px;
      background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .masthead-status {
      font-size: 0.8rem;
      color: var(--text-muted);
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 16px;
    }
    .status-indicator {
      width: 8px;
      height: 8px;
      background-color: var(--accent-green);
      border-radius: 50%;
      box-shadow: 0 0 8px var(--accent-green);
      display: inline-block;
    }
    .masthead-row-channels {
      padding: 8px 0;
    }
    .masthead-nav-list {
      display: flex;
      gap: 22px;
      margin: 0;
      padding: 0;
      list-style: none;
      align-items: center;
      flex-wrap: wrap;
    }
    .masthead-nav-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: #334155;
      padding: 6px 4px;
      position: relative;
    }
    .masthead-nav-link:hover, .masthead-nav-link.active {
      color: var(--primary-start);
    }
    .masthead-cta-btn {
      background: linear-gradient(135deg, var(--primary-start), var(--accent-pink));
      color: #FFFFFF !important;
      padding: 7px 20px;
      border-radius: var(--badge-radius);
      font-size: 0.88rem;
      font-weight: 700;
      display: inline-block;
      box-shadow: 0 4px 14px rgba(255, 0, 127, 0.3);
    }
    .masthead-cta-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 18px rgba(255, 0, 127, 0.45);
    }

    /* 通用组件规范 */
    .section-wrap {
      padding: 72px 0;
      position: relative;
    }
    .section-alt-bg {
      background-color: #FFFFFF;
    }
    .section-dark-bg {
      background-color: var(--dark-block);
      color: #F8FAFC;
    }
    .section-header-box {
      margin-bottom: 42px;
    }
    .section-kicker {
      text-transform: uppercase;
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--primary-start);
      margin-bottom: 6px;
      display: inline-block;
    }
    .section-title {
      font-size: 2.15rem;
      font-weight: 800;
      line-height: 1.25;
      color: inherit;
      margin-bottom: 12px;
    }
    .section-desc {
      font-size: 1.02rem;
      color: var(--text-muted);
      max-width: 780px;
      margin: 0 auto;
    }
    .section-dark-bg .section-desc {
      color: #94A3B8;
    }

    /* 卡片与数据徽章 */
    .app-card {
      background: #FFFFFF;
      border-radius: var(--card-radius);
      box-shadow: var(--shadow-soft);
      border: var(--border-subtle);
      transition: all 0.3s ease;
      height: 100%;
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }
    .app-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .dark-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: var(--card-radius);
    }
    .dark-card:hover {
      border-color: rgba(0, 245, 212, 0.4);
      box-shadow: 0 10px 30px rgba(0, 245, 212, 0.1);
    }
    .data-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: var(--badge-radius);
      font-size: 0.78rem;
      font-weight: 700;
      background: rgba(99, 32, 238, 0.08);
      color: var(--primary-start);
      border: 1px solid rgba(99, 32, 238, 0.2);
    }
    .data-badge.accent {
      background: rgba(0, 245, 212, 0.12);
      color: #059669;
      border-color: rgba(0, 245, 212, 0.4);
    }
    .data-badge.dark-accent {
      background: rgba(0, 245, 212, 0.12);
      color: var(--accent-green);
      border-color: rgba(0, 245, 212, 0.3);
    }

    /* 板块 1: 白皮书获客 Hero */
    .hero-whitepaper-section {
      background: linear-gradient(180deg, #F0F3FF 0%, var(--base-light) 100%);
      padding: 60px 0 70px;
      border-bottom: 1px solid rgba(99, 32, 238, 0.08);
    }
    .hero-title-main {
      font-size: 2.85rem;
      font-weight: 800;
      line-height: 1.18;
      letter-spacing: -1px;
      color: #0F172A;
      margin-bottom: 18px;
    }
    .hero-title-main span {
      background: linear-gradient(135deg, var(--primary-start), var(--accent-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-abstract-text {
      font-size: 1.05rem;
      color: #475569;
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .whitepaper-cover-card {
      background: #FFFFFF;
      border-radius: var(--card-radius);
      box-shadow: 0 20px 40px rgba(15, 23, 42, 0.1);
      border: 1px solid rgba(99, 32, 238, 0.15);
      padding: 24px;
      position: relative;
    }
    .whitepaper-lead-form {
      background: #F8FAFC;
      border-radius: 14px;
      padding: 16px;
      margin-top: 18px;
      border: 1px solid #E2E8F0;
    }
    .whitepaper-toc-list {
      list-style: none;
      padding: 0;
      margin: 14px 0;
    }
    .whitepaper-toc-list li {
      font-size: 0.88rem;
      color: #334155;
      padding: 6px 0;
      border-bottom: 1px dashed #E2E8F0;
      display: flex;
      justify-content: space-between;
    }

    /* 板块 2: 全球部署覆盖 */
    .region-node-box {
      border: 1px solid #E2E8F0;
      border-radius: 14px;
      padding: 20px;
      background: #FFFFFF;
      transition: all 0.2s ease;
    }
    .region-node-box:hover {
      border-color: var(--primary-start);
      box-shadow: var(--shadow-soft);
    }

    /* 板块 3: 场景卡片 */
    .scene-thumb-wrap {
      height: 220px;
      overflow: hidden;
      position: relative;
    }
    .scene-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s ease;
    }
    .app-card:hover .scene-thumb-wrap img {
      transform: scale(1.05);
    }

    /* 板块 4: 本地化能力矩阵 */
    .pipeline-step-pill {
      background: #FFFFFF;
      border-radius: 16px;
      padding: 24px;
      border: 1px solid #E2E8F0;
      position: relative;
      height: 100%;
    }
    .pipeline-num {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: var(--primary-start);
      color: #FFFFFF;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      margin-bottom: 12px;
    }

    /* 板块 5: 客户案例图文对比 */
    .comparison-wrapper {
      border-radius: 18px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(255, 255, 255, 0.03);
    }
    .comparison-frame {
      padding: 18px;
    }
    .comparison-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      background: rgba(0, 0, 0, 0.7);
      color: #FFF;
      padding: 4px 10px;
      font-size: 0.75rem;
      border-radius: 6px;
    }

    /* 板块 6: 技术架构与指标 */
    .metric-digit {
      font-size: 2.6rem;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary-start), var(--accent-pink));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1;
      margin-bottom: 6px;
    }

    /* 板块 7: 价格对比表 */
    .pricing-table-card {
      border-radius: var(--card-radius);
      padding: 32px 24px;
      background: #FFFFFF;
      border: 1px solid #E2E8F0;
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }
    .pricing-table-card.featured {
      border: 2px solid var(--primary-start);
      box-shadow: 0 16px 36px -8px rgba(99, 32, 238, 0.2);
      transform: translateY(-6px);
    }
    .pricing-price {
      font-size: 2.4rem;
      font-weight: 800;
      color: #0F172A;
      margin: 16px 0;
    }
    .pricing-features-list {
      list-style: none;
      padding: 0;
      margin: 20px 0 28px;
    }
    .pricing-features-list li {
      font-size: 0.9rem;
      color: #475569;
      padding: 8px 0;
      border-bottom: 1px solid #F1F5F9;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    /* 板块 8: 口碑气泡与评价 */
    .bubble-card {
      background: #FFFFFF;
      border-radius: 18px;
      padding: 24px;
      border: 1px solid #E2E8F0;
      position: relative;
      margin-bottom: 16px;
      box-shadow: var(--shadow-soft);
    }
    .bubble-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, #A855F7, #6366F1);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #FFFFFF;
      font-weight: 700;
      font-size: 1rem;
    }

    /* 板块 9: 资讯列表 */
    .news-card {
      background: #FFFFFF;
      border-radius: 16px;
      border: 1px solid #E2E8F0;
      padding: 20px;
      height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    /* 板块 10: 节日/赛季战役区 */
    .campaign-banner-box {
      background: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4C1D95 100%);
      border-radius: 24px;
      padding: 44px 36px;
      color: #FFFFFF;
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.15);
    }

    /* 板块 11: 常见问题手风琴 */
    .accordion-item {
      background: #FFFFFF;
      border-radius: 12px;
      border: 1px solid #E2E8F0;
      margin-bottom: 12px;
      overflow: hidden;
    }
    .accordion-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: #0F172A;
      padding: 16px 20px;
      display: block;
      cursor: pointer;
      position: relative;
    }
    .accordion-title:hover {
      background: #F8FAFC;
    }
    .accordion-content {
      padding: 18px 20px;
      font-size: 0.95rem;
      color: #475569;
      border-top: 1px solid #F1F5F9;
      display: none;
    }
    .accordion-item.is-active .accordion-content {
      display: block;
    }

    /* 板块 12: 联系销售与底部 CTA */
    .final-cta-section {
      background: linear-gradient(135deg, #4338CA 0%, #6320EE 50%, #7C3AED 100%);
      color: #FFFFFF;
      border-radius: 28px;
      padding: 56px 40px;
      box-shadow: 0 20px 50px rgba(99, 32, 238, 0.35);
    }
    .form-input-pill {
      background: #FFFFFF;
      border-radius: 10px;
      border: 1px solid #CBD5E1;
      padding: 12px 16px;
      font-size: 0.95rem;
      width: 100%;
      margin-bottom: 12px;
      color: #0F172A;
    }
    .btn-submit-glow {
      background: #00F5D4;
      color: #0F172A;
      font-weight: 800;
      border-radius: 10px;
      padding: 13px 28px;
      border: none;
      width: 100%;
      cursor: pointer;
      transition: all 0.25s ease;
    }
    .btn-submit-glow:hover {
      background: #00D2B6;
      box-shadow: 0 0 16px rgba(0, 245, 212, 0.6);
    }

    /* 全局页脚 */
    .master-footer {
      background-color: #0B0E17;
      color: #94A3B8;
      padding: 60px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.88rem;
    }
    .footer-col-title {
      color: #FFFFFF;
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 18px;
    }
    .footer-nav-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-nav-list li {
      margin-bottom: 10px;
    }
    .footer-nav-list a {
      color: #94A3B8;
    }
    .footer-nav-list a:hover {
      color: var(--accent-green);
    }
    .footer-bottom-bar {
      margin-top: 48px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      text-align: center;
      font-size: 0.82rem;
    }

    /* 移动端与栅格兼容补丁 */
    @media (max-width: 768px) {
      .hero-title-main { font-size: 2.1rem; }
      .section-title { font-size: 1.75rem; }
      .masthead-row-top { text-align: center; }
      .masthead-status { justify-content: center; margin-top: 8px; }
      .masthead-nav-list { justify-content: center; gap: 12px; }
      .section-wrap { padding: 48px 0; }
      .final-cta-section { padding: 36px 20px; }
    }