:root {
      --accent: #a668d9;
      --accent-glow: rgba(166, 104, 217, 0.25);
      --accent-dark: #8c4bbd;
      --bg-main: #0c0a12;
      --bg-surface: #151120;
      --bg-elevated: #1e192c;
      --border-color: rgba(166, 104, 217, 0.18);
      --border-hover: rgba(166, 104, 217, 0.45);
      --text-title: #f3effa;
      --text-body: #b8b0c8;
      --text-muted: #7e7492;
      --radius-s: 6px;
      --radius-m: 10px;
      --radius-l: 16px;
      --shadow-subtle: 0 4px 20px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 25px var(--accent-glow);
      --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    body {
      background-color: var(--bg-main);
      color: var(--text-body);
      font-family: var(--font-stack);
      line-height: 1.7;
      word-break: keep-all;
      overflow-x: hidden;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.35s ease, border-color 0.35s ease, background-color 0.35s ease, transform 0.35s ease;
    }

    h1, h2, h3, h4 {
      color: var(--text-title);
      font-weight: 700;
      line-height: 1.3;
      white-space: normal;
      word-break: keep-all;
    }

    /* 顶部导航壳层 */
    .seal {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: rgba(12, 10, 18, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
    }

    .runway {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      height: 72px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
    }

    .beak {
      display: flex;
      align-items: center;
      min-width: 0;
    }

    .beak img {
      height: 38px;
      width: auto;
      display: block;
    }

    .rudder {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
    }

    .apex {
      padding: 8px 16px;
      border-radius: var(--radius-s);
      font-size: 15px;
      font-weight: 500;
      color: var(--text-body);
      min-width: 0;
      word-break: break-word;
    }

    .apex:hover {
      color: var(--text-title);
      background-color: rgba(166, 104, 217, 0.1);
    }

    .apex.active {
      color: var(--text-title);
      background-color: var(--accent);
      box-shadow: 0 2px 10px rgba(166, 104, 217, 0.4);
    }

    /* 主内容版心 */
    .airspace {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px 80px 24px;
    }

    /* Hero展示区块 */
    .apogee {
      padding: 60px 0 40px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 40px;
    }

    .script-apogee {
      flex: 1 1 500px;
      min-width: 0;
    }

    .impulse {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 14px;
      background-color: rgba(166, 104, 217, 0.12);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-s);
      color: var(--accent);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 20px;
      word-break: break-word;
    }

    .streak-hangar {
      font-size: 40px;
      letter-spacing: -0.5px;
      margin-bottom: 20px;
    }

    .flock-lead {
      font-size: 18px;
      color: var(--text-body);
      margin-bottom: 32px;
      line-height: 1.8;
      word-break: break-word;
    }

    .ply-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 32px;
    }

    .thrust {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 14px 28px;
      background: linear-gradient(135deg, var(--accent), var(--accent-dark));
      color: #ffffff;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-m);
      box-shadow: var(--shadow-glow);
      min-width: 0;
      word-break: break-word;
    }

    .thrust:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 35px rgba(166, 104, 217, 0.45);
    }

    .flick {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 14px 24px;
      background-color: var(--bg-elevated);
      color: var(--text-title);
      font-size: 16px;
      font-weight: 600;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-m);
      min-width: 0;
      word-break: break-word;
    }

    .flick:hover {
      border-color: var(--border-hover);
      background-color: rgba(166, 104, 217, 0.1);
      transform: translateY(-2px);
    }

    .stream-apogee {
      list-style: none;
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
    }

    .stream-apogee li {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
      min-width: 0;
      word-break: break-word;
    }

    .stream-apogee svg {
      color: var(--accent);
      flex-shrink: 0;
    }

    .beacon-apogee {
      flex: 1 1 480px;
      min-width: 0;
      background-color: var(--bg-surface);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-l);
      padding: 20px;
      box-shadow: var(--shadow-subtle);
      position: relative;
    }

    .beacon-window {
      background-color: var(--bg-main);
      border-radius: var(--radius-m);
      border: 1px solid var(--border-color);
      overflow: hidden;
    }

    .beacon-dots {
      display: flex;
      gap: 8px;
      padding: 12px 16px;
      background-color: rgba(255, 255, 255, 0.03);
      border-bottom: 1px solid var(--border-color);
    }

    .beacon-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
    }

    .beacon-dot:nth-child(1) { background-color: #ff5f56; }
    .beacon-dot:nth-child(2) { background-color: #ffbd2e; }
    .beacon-dot:nth-child(3) { background-color: #27c93f; }

    .beacon-body {
      padding: 24px;
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .beacon-col {
      flex: 1 1 140px;
      background-color: var(--bg-elevated);
      border-radius: var(--radius-s);
      padding: 14px;
      border: 1px solid rgba(166, 104, 217, 0.1);
      min-width: 0;
    }

    /* 多端无缝同步区块 */
    .strato {
      margin-top: 60px;
      padding: 48px;
      background-color: var(--bg-surface);
      border-radius: var(--radius-l);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-subtle);
    }

    .streak-hangar {
      font-size: 28px;
      margin-bottom: 12px;
    }

    .flock-hangar {
      font-size: 16px;
      color: var(--text-body);
      max-width: 800px;
      margin-bottom: 40px;
      word-break: break-word;
    }

    .script-sync {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
    }

    .leaflet-sync {
      flex: 1 1 300px;
      min-width: 0;
      background-color: var(--bg-elevated);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-m);
      padding: 28px;
      transition: transform 0.35s ease, border-color 0.35s ease;
    }

    .leaflet-sync:hover {
      transform: translateY(-4px);
      border-color: var(--border-hover);
    }

    .feather-sync {
      width: 48px;
      height: 48px;
      border-radius: var(--radius-s);
      background-color: rgba(166, 104, 217, 0.12);
      color: var(--accent);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }

    .streak-glider {
      font-size: 20px;
      margin-bottom: 12px;
    }

    .flock-glider {
      font-size: 14px;
      color: var(--text-muted);
      word-break: break-word;
    }

    /* 桌面端专属能力区块 */
    .hangar {
      margin-top: 60px;
    }

    .script-features {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      margin-top: 32px;
    }

    .glider-feature {
      flex: 1 1 340px;
      min-width: 0;
      background-color: var(--bg-surface);
      border-radius: var(--radius-m);
      border: 1px solid var(--border-color);
      padding: 32px;
      transition: border-color 0.35s ease, box-shadow 0.35s ease;
    }

    .glider-feature:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-glow);
    }

    .feather-feature {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-s);
      background-color: var(--accent);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }

    /* 快捷键概览区块 */
    .canopy {
      margin-top: 60px;
      padding: 44px;
      background-color: var(--bg-surface);
      border-radius: var(--radius-l);
      border: 1px solid var(--border-color);
    }

    .ply-shortcuts {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      margin-top: 32px;
    }

    .leaflet-kbd {
      flex: 1 1 260px;
      min-width: 0;
      background-color: var(--bg-main);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-m);
      padding: 20px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .dart-kbd {
      display: inline-block;
      padding: 4px 10px;
      background-color: var(--bg-elevated);
      border: 1px solid var(--border-color);
      border-radius: 4px;
      font-family: monospace;
      font-size: 13px;
      color: var(--accent);
      font-weight: 700;
      word-break: break-word;
    }

    .flock-kbd {
      font-size: 14px;
      color: var(--text-body);
      font-weight: 500;
      word-break: break-word;
    }

    /* 快捷下载与平台切换区块 */
    .landing {
      margin-top: 60px;
      padding: 40px;
      background: linear-gradient(135deg, rgba(166, 104, 217, 0.15), rgba(21, 17, 32, 0.9));
      border: 1px solid var(--border-hover);
      border-radius: var(--radius-l);
      text-align: center;
    }

    .ply-center {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 16px;
      margin-top: 24px;
    }

    /* 页脚结构 */
    .vista {
      background-color: var(--bg-main);
      border-top: 1px solid var(--border-color);
      padding: 48px 0 32px 0;
    }

    .tarmac {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 24px;
    }

    .crease-vista {
      min-width: 0;
    }

    .streak-vista {
      font-size: 20px;
      color: var(--text-title);
      margin-bottom: 8px;
    }

    .flock-vista {
      font-size: 14px;
      color: var(--text-muted);
      word-break: break-word;
    }

    .rudder-vista {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
    }

    .apex-vista {
      font-size: 14px;
      color: var(--text-muted);
    }

    .apex-vista:hover {
      color: var(--accent);
    }

    /* 响应式排版适配 */
    @media (max-width: 768px) {
      .streak-hangar {
        font-size: 28px;
      }
      .streak-hangar {
        font-size: 22px;
      }
      .strato, .canopy, .landing {
        padding: 24px;
      }
      .apogee {
        padding: 30px 0;
      }
      .runway {
        height: auto;
        padding: 16px;
      }
      .rudder {
        margin-top: 12px;
        width: 100%;
        justify-content: flex-start;
      }
    }