/* roulang page: index */
:root {
      --primary: #1e40af;
      --primary-light: #3b82f6;
      --primary-dark: #1e3a8a;
      --primary-gradient: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #06b6d4 100%);
      --accent: #0ea5e9;
      --accent-soft: rgba(14, 165, 233, 0.12);
      --bg-main: #f8fafc;
      --bg-card: #ffffff;
      --bg-dark: #0f172a;
      --text-main: #0f172a;
      --text-muted: #475569;
      --text-light: #94a3b8;
      --border-color: #e2e8f0;
      --border-focus: #3b82f6;
      --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
      --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
      --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
      --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 22px;
      --radius-full: 9999px;
      --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Noto Sans", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: var(--font-family);
      color: var(--text-main);
      background-color: var(--bg-main);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease;
    }

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

    button, input, select, textarea {
      font: inherit;
    }

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

    /* 顶部倒计时条（蓝图硬性要求） */
    .top-notice-bar {
      background: linear-gradient(90deg, #0f172a 0%, #1e3a8a 100%);
      color: #e2e8f0;
      font-size: 0.875rem;
      padding: 9px 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    .top-notice-inner {
      display: flex;
      align-items: center;
      justify-content: center;
      flex-wrap: wrap;
      gap: 12px;
      text-align: center;
    }
    .countdown-box {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(255, 255, 255, 0.12);
      padding: 2px 10px;
      border-radius: var(--radius-full);
      font-weight: 600;
      color: #38bdf8;
    }
    .countdown-box span {
      background: #0284c7;
      color: #fff;
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 0.8rem;
    }

    /* 导航栏 */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: all 0.3s ease;
    }
    .header-nav {
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .site-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--primary-dark);
      letter-spacing: -0.5px;
    }
    .logo-badge {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 40px;
      height: 40px;
      background: var(--primary-gradient);
      color: #ffffff;
      border-radius: 10px;
      font-size: 1.2rem;
      font-weight: 900;
      box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      list-style: none;
    }
    .nav-link {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      padding: 6px 0;
    }
    .nav-link:hover, .nav-link.active {
      color: var(--primary);
    }
    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 100%;
      height: 2px;
      background: var(--primary);
      border-radius: 2px;
    }
    .nav-cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-full);
      background: var(--primary-gradient);
      color: #ffffff;
      font-size: 0.92rem;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    .nav-cta-btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
      color: #fff;
    }

    /* 按钮通用 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: var(--radius-full);
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      border: 1px solid transparent;
      transition: all 0.25s ease;
    }
    .btn-primary {
      background: var(--primary-gradient);
      color: #ffffff;
      box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.4);
    }
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 24px -5px rgba(37, 99, 235, 0.5);
    }
    .btn-outline {
      background: rgba(255, 255, 255, 0.9);
      border-color: #cbd5e1;
      color: #1e293b;
    }
    .btn-outline:hover {
      background: #ffffff;
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }
    .btn-light {
      background: #ffffff;
      color: var(--primary-dark);
      box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
    }
    .btn-light:hover {
      background: #f1f5f9;
      transform: translateY(-2px);
    }

    /* 标题与板块通用 */
    .section-spacing {
      padding: 96px 0;
    }
    .section-alt {
      background-color: #f1f5f9;
    }
    .section-header {
      text-align: center;
      max-width: 820px;
      margin: 0 auto 56px auto;
    }
    .section-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: var(--radius-full);
      background: var(--accent-soft);
      color: var(--primary);
      font-size: 0.85rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 2.35rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.3;
      margin-bottom: 18px;
      letter-spacing: -0.5px;
    }
    .section-desc {
      font-size: 1.1rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 1. 首屏多维轮播旗帜区（Hero：蓝图要求视频全宽遮罩+播放按钮+试用CTA） */
    .hero-section {
      position: relative;
      background: linear-gradient(180deg, #090e17 0%, #0f172a 100%);
      color: #ffffff;
      padding: 110px 0 130px;
      overflow: hidden;
    }
    .hero-bg-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/c679d7413a900ee3.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.22;
      filter: saturate(1.2);
    }
    .hero-glow {
      position: absolute;
      top: 20%;
      left: 50%;
      transform: translate(-50%, -20%);
      width: 750px;
      height: 450px;
      background: radial-gradient(circle, rgba(37, 99, 235, 0.4) 0%, rgba(6, 182, 212, 0.1) 60%, transparent 80%);
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 960px;
      margin: 0 auto;
      text-align: center;
    }
    .hero-pill {
      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 18px;
      border-radius: var(--radius-full);
      font-size: 0.88rem;
      color: #38bdf8;
      margin-bottom: 24px;
      backdrop-filter: blur(4px);
    }
    .hero-title {
      font-size: 3.4rem;
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 24px;
      letter-spacing: -1px;
    }
    .hero-title span {
      background: linear-gradient(90deg, #60a5fa 0%, #38bdf8 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }
    .hero-desc {
      font-size: 1.2rem;
      line-height: 1.8;
      color: #cbd5e1;
      max-width: 820px;
      margin: 0 auto 38px;
    }
    .hero-actions {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 20px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }
    .btn-video-play {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 14px 28px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #ffffff;
      border-radius: var(--radius-full);
      backdrop-filter: blur(8px);
      font-weight: 600;
      transition: all 0.25s ease;
    }
    .btn-video-play:hover {
      background: rgba(255, 255, 255, 0.2);
      border-color: #38bdf8;
      transform: translateY(-2px);
    }
    .play-icon-circle {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      background: #38bdf8;
      color: #0f172a;
      border-radius: 50%;
      font-size: 0.9rem;
    }
    .hero-preview-frame {
      position: relative;
      max-width: 1060px;
      margin: 0 auto;
      border-radius: var(--radius-lg);
      padding: 10px;
      background: rgba(255, 255, 255, 0.08);
      border: 1px solid rgba(255, 255, 255, 0.15);
      box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    }
    .hero-preview-frame img {
      border-radius: calc(var(--radius-lg) - 4px);
      width: 100%;
      height: 480px;
      object-fit: cover;
    }
    .hero-badge-tag {
      position: absolute;
      background: rgba(15, 23, 42, 0.85);
      border: 1px solid rgba(56, 189, 248, 0.4);
      backdrop-filter: blur(8px);
      padding: 10px 18px;
      border-radius: var(--radius-md);
      color: #ffffff;
      font-size: 0.85rem;
      display: flex;
      align-items: center;
      gap: 8px;
      box-shadow: var(--shadow-lg);
    }
    .badge-tag-left {
      bottom: 40px;
      left: -20px;
    }
    .badge-tag-right {
      top: 40px;
      right: -20px;
    }

    /* 2. 企业网盘核心指标看板（Data Metrics Bar） */
    .metrics-bar-section {
      margin-top: -50px;
      position: relative;
      z-index: 10;
    }
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-xl);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }
    .metric-card {
      padding: 36px 28px;
      text-align: center;
      border-right: 1px solid var(--border-color);
      transition: transform 0.25s ease;
    }
    .metric-card:last-child {
      border-right: none;
    }
    .metric-card:hover {
      background: #f8fafc;
    }
    .metric-number {
      font-size: 2.8rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 8px;
    }
    .metric-unit {
      font-size: 1.3rem;
      font-weight: 600;
      color: var(--accent);
      margin-left: 2px;
    }
    .metric-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 6px;
    }
    .metric-sub {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.4;
    }

    /* 3. 入口矩阵区（蓝图顺序：Hero → 入口矩阵） */
    .portal-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .portal-card {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 36px 30px;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
      position: relative;
      overflow: hidden;
    }
    .portal-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 4px;
      background: var(--primary-gradient);
      opacity: 0;
      transition: opacity 0.3s ease;
    }
    .portal-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-xl);
      border-color: #93c5fd;
    }
    .portal-card:hover::before {
      opacity: 1;
    }
    .portal-icon-wrap {
      width: 58px;
      height: 58px;
      border-radius: var(--radius-md);
      background: var(--accent-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      font-weight: 800;
      margin-bottom: 22px;
    }
    .portal-title {
      font-size: 1.3rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
    }
    .portal-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 20px;
    }
    .portal-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--primary);
    }

    /* 4. 最新动态（蓝图顺序：入口矩阵 → 最新动态） */
    .timeline-table-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 32px;
      box-shadow: var(--shadow-md);
    }
    .news-item-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 16px;
      border-bottom: 1px solid var(--border-color);
      transition: background-color 0.2s ease;
      border-radius: var(--radius-sm);
    }
    .news-item-row:last-child {
      border-bottom: none;
    }
    .news-item-row:hover {
      background-color: #f8fafc;
    }
    .news-badge {
      padding: 4px 10px;
      background: #eff6ff;
      color: #2563eb;
      font-size: 0.8rem;
      font-weight: 600;
      border-radius: 4px;
      margin-right: 14px;
    }
    .news-title-link {
      flex: 1;
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
    }
    .news-meta-time {
      font-size: 0.85rem;
      color: var(--text-light);
      margin-left: 20px;
    }

    /* 5. 精选分类 / 核心优势矩阵（蓝图顺序：精选分类） */
    .advantage-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .advantage-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      padding: 32px;
      border: 1px solid var(--border-color);
      transition: all 0.3s ease;
      position: relative;
    }
    .advantage-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
      border-color: #93c5fd;
    }
    .adv-icon-badge {
      width: 52px;
      height: 52px;
      border-radius: 12px;
      background: #eff6ff;
      color: #1d4ed8;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.4rem;
      font-weight: 800;
      margin-bottom: 18px;
    }
    .adv-title {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .adv-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 6. 品牌与产品架构介绍区（图文结合） */
    .product-arch-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
    }
    .arch-image-box {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-xl);
      border: 1px solid var(--border-color);
    }
    .arch-image-box img {
      width: 100%;
      height: 440px;
      object-fit: cover;
    }
    .arch-info-content h3 {
      font-size: 2rem;
      font-weight: 800;
      color: var(--text-main);
      line-height: 1.35;
      margin-bottom: 20px;
    }
    .arch-info-content p {
      font-size: 1.05rem;
      color: var(--text-muted);
      line-height: 1.75;
      margin-bottom: 24px;
    }
    .arch-feature-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .arch-feature-item {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      font-size: 0.95rem;
      color: var(--text-main);
      font-weight: 500;
    }
    .check-icon-circle {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: #dcfce7;
      color: #15803d;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      font-weight: bold;
      flex-shrink: 0;
      margin-top: 2px;
    }

    /* 7. 企业网盘与传统存储效益对比区（Feature Comparison） */
    .compare-table-wrap {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
    }
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
    }
    .compare-table th, .compare-table td {
      padding: 20px 24px;
      border-bottom: 1px solid var(--border-color);
    }
    .compare-table th {
      background: #f8fafc;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
    }
    .compare-table th.highlight-col {
      background: #eff6ff;
      color: var(--primary);
      font-size: 1.15rem;
    }
    .compare-table td.highlight-col {
      background: rgba(239, 246, 255, 0.4);
      font-weight: 600;
      color: #1e3a8a;
    }
    .compare-badge-yes {
      color: #16a34a;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .compare-badge-no {
      color: #dc2626;
      font-weight: 500;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    /* 8. 深色安全合规与底层防护理念区（Security & Compliance） */
    .security-section {
      background: #090e17;
      color: #ffffff;
      position: relative;
      overflow: hidden;
    }
    .security-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-image: url('/assets/images/c81db5a5aaf49576.webp');
      background-size: cover;
      background-position: center;
      opacity: 0.12;
      pointer-events: none;
    }
    .sec-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      position: relative;
      z-index: 2;
    }
    .sec-card {
      background: rgba(30, 41, 59, 0.6);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-md);
      padding: 30px 24px;
      backdrop-filter: blur(10px);
      transition: all 0.3s ease;
    }
    .sec-card:hover {
      border-color: #38bdf8;
      transform: translateY(-4px);
      background: rgba(30, 41, 59, 0.85);
    }
    .sec-tag {
      font-size: 0.75rem;
      background: rgba(56, 189, 248, 0.2);
      color: #38bdf8;
      padding: 3px 8px;
      border-radius: 4px;
      display: inline-block;
      margin-bottom: 14px;
      font-weight: 600;
    }
    .sec-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 10px;
      color: #f8fafc;
    }
    .sec-desc {
      font-size: 0.88rem;
      color: #94a3b8;
      line-height: 1.6;
    }

    /* 9. 典型行业场景与客户故事区（Customer Stories） */
    .stories-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 30px;
    }
    .story-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      display: flex;
      flex-direction: column;
      transition: all 0.3s ease;
    }
    .story-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .story-card img {
      width: 100%;
      height: 210px;
      object-fit: cover;
    }
    .story-body {
      padding: 28px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }
    .story-badge {
      align-self: flex-start;
      background: #eff6ff;
      color: var(--primary);
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: var(--radius-full);
      margin-bottom: 12px;
    }
    .story-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .story-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 18px;
      flex: 1;
    }
    .story-result-bar {
      padding-top: 14px;
      border-top: 1px dashed var(--border-color);
      font-size: 0.88rem;
      font-weight: 600;
      color: #0369a1;
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 10. 资讯列表与前沿洞察（蓝图顺序：资讯） */
    .insights-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .insight-card {
      background: var(--bg-card);
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .insight-card:hover {
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }
    .insight-card img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }
    .insight-content {
      padding: 26px;
    }
    .insight-date {
      font-size: 0.82rem;
      color: var(--text-light);
      margin-bottom: 10px;
    }
    .insight-heading {
      font-size: 1.18rem;
      font-weight: 700;
      line-height: 1.45;
      margin-bottom: 12px;
      color: var(--text-main);
    }
    .insight-summary {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 11. 版本更新与演进历程（蓝图顺序：版本更新） */
    .release-timeline {
      position: relative;
      max-width: 900px;
      margin: 0 auto;
    }
    .release-timeline::before {
      content: "";
      position: absolute;
      top: 0;
      bottom: 0;
      left: 20px;
      width: 2px;
      background: #cbd5e1;
    }
    .release-node {
      position: relative;
      padding-left: 56px;
      margin-bottom: 36px;
    }
    .release-node:last-child {
      margin-bottom: 0;
    }
    .release-bullet {
      position: absolute;
      left: 12px;
      top: 6px;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--primary);
      border: 3px solid #ffffff;
      box-shadow: 0 0 0 2px var(--primary);
    }
    .release-panel {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      box-shadow: var(--shadow-sm);
    }
    .release-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 10px;
      flex-wrap: wrap;
      gap: 8px;
    }
    .release-version {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--primary-dark);
    }
    .release-date {
      font-size: 0.85rem;
      color: var(--text-light);
    }
    .release-notes {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
    }

    /* 12. App / 多端无缝同步体验区（蓝图顺序：App/多端） */
    .app-sync-section {
      background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 100%);
      color: #ffffff;
      border-radius: var(--radius-lg);
      padding: 60px 48px;
      margin: 30px auto;
    }
    .app-sync-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 40px;
      align-items: center;
    }
    .app-platform-badges {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin: 28px 0;
    }
    .platform-chip {
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: var(--radius-full);
      padding: 8px 18px;
      font-size: 0.88rem;
      font-weight: 600;
      color: #ffffff;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }
    .app-preview-mockup {
      border-radius: var(--radius-md);
      box-shadow: 0 20px 30px -5px rgba(0, 0, 0, 0.4);
      border: 1px solid rgba(255, 255, 255, 0.2);
      overflow: hidden;
    }
    .app-preview-mockup img {
      width: 100%;
      height: 320px;
      object-fit: cover;
    }

    /* 13. 平台保障与企业级 SLA 承诺区（Platform SLA Guarantee） */
    .sla-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .sla-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 30px 22px;
      text-align: center;
      box-shadow: var(--shadow-sm);
      transition: all 0.3s ease;
    }
    .sla-item:hover {
      border-color: var(--primary-light);
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }
    .sla-icon-box {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: #eff6ff;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.3rem;
      font-weight: 800;
      margin: 0 auto 16px auto;
    }
    .sla-item-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 8px;
    }
    .sla-item-desc {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 14. 快速解答与常见技术疑问（蓝图顺序：快速解答/FAQ） */
    .faq-container {
      max-width: 880px;
      margin: 0 auto;
    }
    .faq-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color 0.2s ease;
    }
    .faq-item:hover {
      border-color: #93c5fd;
    }
    .faq-question {
      padding: 22px 26px;
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      user-select: none;
    }
    .faq-indicator {
      font-size: 1.25rem;
      color: var(--primary);
      font-weight: 400;
      transition: transform 0.25s ease;
    }
    .faq-answer {
      padding: 0 26px 22px 26px;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 15. 底部门户转化与演示预约区（Conversion CTA Form - 唯一收口表单） */
    .cta-form-section {
      background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
      color: #ffffff;
      padding: 80px 0;
      border-radius: var(--radius-lg);
      margin: 40px auto 90px;
      box-shadow: var(--shadow-xl);
    }
    .cta-form-wrapper {
      max-width: 760px;
      margin: 0 auto;
      text-align: center;
    }
    .cta-form-wrapper h2 {
      font-size: 2.25rem;
      font-weight: 800;
      margin-bottom: 14px;
      letter-spacing: -0.5px;
    }
    .cta-form-wrapper p {
      font-size: 1.05rem;
      color: #cbd5e1;
      margin-bottom: 36px;
    }
    .conversion-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      text-align: left;
    }
    .form-group-full {
      grid-column: 1 / -1;
    }
    .form-input, .form-select {
      width: 100%;
      padding: 14px 18px;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.08);
      color: #ffffff;
      font-size: 0.95rem;
      outline: none;
      transition: all 0.2s ease;
    }
    .form-input::placeholder {
      color: #94a3b8;
    }
    .form-input:focus, .form-select:focus {
      background: rgba(255, 255, 255, 0.15);
      border-color: #38bdf8;
      box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
    }
    .form-select option {
      background: #0f172a;
      color: #ffffff;
    }
    .form-submit-btn {
      width: 100%;
      padding: 16px;
      background: #0284c7;
      color: #ffffff;
      border: none;
      border-radius: var(--radius-sm);
      font-size: 1.05rem;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s ease;
    }
    .form-submit-btn:hover {
      background: #0369a1;
    }
    .form-guarantee-text {
      margin-top: 14px;
      font-size: 0.8rem;
      color: #94a3b8;
      text-align: center;
    }

    /* 统一页脚 */
    .site-footer {
      background: #090e17;
      color: #94a3b8;
      padding: 70px 0 30px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 0.92rem;
    }
    .footer-top-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      margin-bottom: 50px;
    }
    .footer-brand h4 {
      font-size: 1.35rem;
      font-weight: 800;
      color: #ffffff;
      margin-bottom: 14px;
    }
    .footer-brand p {
      line-height: 1.7;
      max-width: 340px;
    }
    .footer-col-title {
      font-size: 1rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 18px;
    }
    .footer-links-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .footer-links-list a:hover {
      color: #38bdf8;
    }
    .footer-bottom-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 0.85rem;
    }

    /* 响应式断点 */
    @media (max-width: 1024px) {
      .hero-title { font-size: 2.8rem; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .metric-card:nth-child(2) { border-right: none; }
      .metric-card { border-bottom: 1px solid var(--border-color); }
      .portal-grid, .advantage-grid, .stories-grid, .insights-grid { grid-template-columns: repeat(2, 1fr); }
      .sec-grid, .sla-grid { grid-template-columns: repeat(2, 1fr); }
      .product-arch-wrap, .app-sync-grid { grid-template-columns: 1fr; gap: 36px; }
      .footer-top-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 768px) {
      .top-notice-bar { display: none; }
      .nav-links { display: none; }
      .hero-title { font-size: 2.2rem; }
      .hero-desc { font-size: 1rem; }
      .section-title { font-size: 1.85rem; }
      .metrics-grid { grid-template-columns: 1fr; }
      .metric-card { border-right: none; }
      .portal-grid, .advantage-grid, .stories-grid, .insights-grid, .sec-grid, .sla-grid { grid-template-columns: 1fr; }
      .badge-tag-left, .badge-tag-right { display: none; }
      .conversion-form { grid-template-columns: 1fr; }
      .footer-top-grid { grid-template-columns: 1fr; gap: 30px; }
      .compare-table-wrap { overflow-x: auto; }
      .compare-table { min-width: 600px; }
    }