:root {
      --primary: #f8ac56;
      --primary-dark: #e0943e;
      --accent: #2AABEE;
      --accent-light: #e8f6fe;
      --text-main: #0e1621;
      --text-muted: #6c7883;
      --bg-main: #f4f6f9;
      --surface: #ffffff;
      --surface-dark: #17212b;
      --surface-darker: #0e1621;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
      --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
      --shadow-lg: 0 16px 32px rgba(14, 22, 33, 0.12);
    }

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
      background-color: var(--bg-main);
      color: var(--text-main);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
      word-break: keep-all;
      overflow-wrap: break-word;
    }

    /* 壳层架构与全局版心 */
    .casing-circuit {
      width: 100%;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    .matrix-width {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    /* 顶部导航栏复用规范 */
    .conduit {
      background-color: var(--surface-darker);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(10px);
    }

    .conduit-inner {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0.85rem 1.5rem;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
    }

    .stamp {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      text-decoration: none;
    }

    .stamp img {
      width: 36px;
      height: 36px;
      object-fit: contain;
    }

    .stamp-memo {
      color: #ffffff;
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: -0.3px;
    }

    .relay {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      align-items: center;
    }

    .relay-wire {
      color: #a2b0c0;
      text-decoration: none;
      padding: 0.5rem 1rem;
      font-size: 0.95rem;
      font-weight: 500;
      border-radius: var(--radius-sm);
      transition: all 0.35s ease;
    }

    .relay-wire:hover {
      color: #ffffff;
      background-color: rgba(255, 255, 255, 0.08);
    }

    .relay-wire.active {
      color: #17212b;
      background-color: var(--primary);
      font-weight: 700;
    }

    /* 首屏语言包应用区 (Spark - reverse_split Layout) */
    .spark {
      background: linear-gradient(135deg, var(--surface-dark) 0%, var(--surface-darker) 100%);
      color: #ffffff;
      padding: 4rem 0 4.5rem;
      position: relative;
      overflow: hidden;
    }

    .spark-circuit {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 3rem;
    }

    .spark-side-memo {
      flex: 1 1 500px;
      min-width: 0;
    }

    .spark-side-interactive {
      flex: 1 1 420px;
      min-width: 0;
    }

    .crest-tempo {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background-color: rgba(42, 171, 238, 0.15);
      border: 1px solid rgba(42, 171, 238, 0.3);
      color: var(--accent);
      padding: 0.35rem 0.9rem;
      border-radius: 50px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-bottom: 1.25rem;
    }

    .crest-glyph {
      width: 14px;
      height: 14px;
      fill: currentColor;
    }

    .spark-prompt {
      font-size: 2.3rem;
      font-weight: 800;
      line-height: 1.25;
      color: #ffffff;
      margin-bottom: 1.25rem;
      letter-spacing: -0.5px;
      white-space: normal;
    }

    .spark-prompt span {
      color: var(--primary);
    }

    .spark-memo {
      font-size: 1.05rem;
      color: #a2b0c0;
      margin-bottom: 2rem;
      line-height: 1.7;
    }

    .tape-features {
      display: flex;
      flex-wrap: wrap;
      gap: 1rem;
      margin-bottom: 1.5rem;
    }

    .dash-feature {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 0.92rem;
      color: #e3e8ed;
      background: rgba(255, 255, 255, 0.05);
      padding: 0.4rem 0.85rem;
      border-radius: var(--radius-sm);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .dash-glyph {
      width: 16px;
      height: 16px;
      fill: var(--primary);
      flex-shrink: 0;
    }

    /* 语言包一键卡片组 */
    .bundle-installer {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-lg);
      padding: 2rem;
      backdrop-filter: blur(20px);
      box-shadow: var(--shadow-lg);
    }

    .installer-prompt {
      font-size: 1.2rem;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 1.25rem;
      display: flex;
      align-items: center;
      gap: 0.6rem;
    }

    .installer-prompt-glyph {
      width: 22px;
      height: 22px;
      fill: var(--accent);
    }

    .tape-installers {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .dispatch-language {
      background: #ffffff;
      border-radius: var(--radius-md);
      padding: 1.25rem 1.5rem;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      transition: transform 0.35s ease, box-shadow 0.35s ease;
    }

    .dispatch-language:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }

    .language-info {
      display: flex;
      align-items: center;
      gap: 1rem;
      flex: 1 1 200px;
      min-width: 0;
    }

    .language-glyph-wrap {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: var(--accent-light);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .language-glyph-wrap.accent-alt {
      background: #fff4e5;
    }

    .language-glyph {
      width: 24px;
      height: 24px;
      fill: var(--accent);
    }

    .language-glyph-wrap.accent-alt .language-glyph {
      fill: var(--primary-dark);
    }

    .language-meta {
      display: flex;
      flex-direction: column;
    }

    .language-prompt {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .language-memo {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .trigger-apply {
      background: var(--accent);
      color: #ffffff;
      text-decoration: none;
      padding: 0.65rem 1.25rem;
      border-radius: var(--radius-sm);
      font-size: 0.9rem;
      font-weight: 700;
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      transition: background-color 0.35s ease, box-shadow 0.35s ease;
      white-space: nowrap;
    }

    .trigger-apply:hover {
      background-color: #1a96d8;
      box-shadow: 0 4px 12px rgba(42, 171, 238, 0.3);
    }

    .trigger-apply.alt {
      background: var(--primary);
      color: #17212b;
    }

    .trigger-apply.alt:hover {
      background-color: var(--primary-dark);
      box-shadow: 0 4px 12px rgba(248, 172, 86, 0.35);
    }

    /* 教程指引区 (Beacon - Steps Role) */
    .beacon {
      padding: 4.5rem 0;
      background-color: var(--surface);
      border-bottom: 1px solid #e3e8ed;
    }

    .beacon-base {
      text-align: center;
      max-width: 700px;
      margin: 0 auto 3.5rem;
    }

    .beacon-prompt {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 0.75rem;
      letter-spacing: -0.4px;
    }

    .beacon-memo {
      font-size: 1rem;
      color: var(--text-muted);
    }

    .matrix-steps {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }

    .packet-step {
      background-color: var(--bg-main);
      border: 1px solid #e3e8ed;
      border-radius: var(--radius-md);
      padding: 2rem 1.75rem;
      position: relative;
      transition: all 0.35s ease;
    }

    .packet-step:hover {
      border-color: var(--accent);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }

    .step-number {
      position: absolute;
      top: 1.5rem;
      right: 1.5rem;
      font-size: 2.2rem;
      font-weight: 900;
      color: rgba(42, 171, 238, 0.15);
      line-height: 1;
    }

    .step-glyph-box {
      width: 48px;
      height: 48px;
      background: #ffffff;
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1.5rem;
      box-shadow: var(--shadow-sm);
    }

    .step-glyph {
      width: 24px;
      height: 24px;
      fill: var(--accent);
    }

    .step-prompt {
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .step-memo {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 常见问题解答区 (Airwave - FAQ Role) */
    .airwave {
      padding: 4.5rem 0;
      background-color: var(--bg-main);
    }

    .airwave-base {
      max-width: 750px;
      margin: 0 auto 3rem;
      text-align: center;
    }

    .airwave-prompt {
      font-size: 1.85rem;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 0.75rem;
    }

    .airwave-memo {
      font-size: 1rem;
      color: var(--text-muted);
    }

    .bundle-faq {
      max-width: 860px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .ticker-faq {
      background: var(--surface);
      border-radius: var(--radius-md);
      padding: 1.75rem;
      border: 1px solid #e3e8ed;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.35s ease;
    }

    .ticker-faq:hover {
      border-color: rgba(42, 171, 238, 0.4);
    }

    .faq-question {
      display: flex;
      align-items: flex-start;
      gap: 0.85rem;
      margin-bottom: 0.85rem;
    }

    .faq-glyph {
      width: 22px;
      height: 22px;
      fill: var(--accent);
      flex-shrink: 0;
      margin-top: 0.15rem;
    }

    .faq-prompt {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
    }

    .faq-answer {
      padding-left: 2.25rem;
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* 页脚 Ground */
    .ground {
      background-color: var(--surface-darker);
      color: #a2b0c0;
      padding: 4rem 0 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      margin-top: auto;
    }

    .ground-circuit {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 2.5rem;
      margin-bottom: 3rem;
    }

    .ground-brand {
      flex: 1 1 300px;
      min-width: 0;
    }

    .ground-stamp-memo {
      color: #ffffff;
      font-size: 1.35rem;
      font-weight: 800;
      margin-bottom: 0.75rem;
      display: block;
    }

    .ground-memo {
      font-size: 0.9rem;
      color: #6c7883;
      line-height: 1.6;
    }

    .ground-spool {
      display: flex;
      flex-wrap: wrap;
      gap: 3rem;
    }

    .ground-column {
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      min-width: 140px;
    }

    .ground-prompt {
      color: #ffffff;
      font-size: 0.95rem;
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    .ground-wire {
      color: #a2b0c0;
      text-decoration: none;
      font-size: 0.88rem;
      transition: color 0.35s ease;
    }

    .ground-wire:hover {
      color: var(--primary);
    }

    .ground-terminal {
      text-align: center;
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      font-size: 0.85rem;
      color: #6c7883;
    }

    /* 响应式调整 */
    @media (max-width: 768px) {
      .conduit-inner {
        flex-direction: column;
        gap: 1rem;
      }
      .relay {
        width: 100%;
        justify-content: center;
      }
      .spark-prompt {
        font-size: 1.75rem;
      }
      .matrix-steps {
        grid-template-columns: 1fr;
      }
      .dispatch-language {
        flex-direction: column;
        align-items: flex-start;
      }
      .trigger-apply {
        width: 100%;
        justify-content: center;
      }
    }

.relay-conduit{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #e3e8ed;
            padding: 0 2rem;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

.relay-conduit .relay-conduit-inner{
            width: 100%;
            max-width: 1360px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

.relay-conduit .relay-stamp{
            display: flex;
            align-items: center;
            gap: 12px;
        }

.relay-conduit .relay-stamp img{
            height: 42px;
            width: auto;
            display: block;
        }

.relay-conduit .relay-stamp-memo{
            font-size: 1.25rem;
            font-weight: 800;
            color: #17212b;
            letter-spacing: -0.5px;
        }

.relay-conduit .relay-relay{
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

.relay-conduit .relay-relay-wire{
            padding: 8px 16px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #6c7883;
            border-radius: 8px;
            transition: all 0.35s ease;
        }

.relay-conduit .relay-relay-wire:hover{
            color: #17212b;
            background: rgba(248, 172, 86, 0.12);
        }

.relay-conduit .relay-relay-wire.active{
            color: #17212b;
            background: #f8ac56;
            box-shadow: 0 2px 8px rgba(248, 172, 86, 0.35);
        }

@media (max-width: 768px){.relay-conduit{
                height: auto;
                padding: 1rem;
            }

.relay-conduit .relay-conduit-inner{
                flex-direction: column;
                gap: 1rem;
                align-items: flex-start;
            }}

.relay-conduit {
    background: rgb(255, 255, 255);
    background-image: none;
}

.ground-ground {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: break-word;
    color: var(--text-main);
}
.ground-ground,
.ground-ground *,
.ground-ground *::before,
.ground-ground *::after {
    box-sizing: border-box;
}

.ground-ground nav,
.ground-ground div,
.ground-ground section,
.ground-ground article,
.ground-ground aside,
.ground-ground p,
.ground-ground h1,
.ground-ground h2,
.ground-ground h3,
.ground-ground h4,
.ground-ground h5,
.ground-ground h6,
.ground-ground a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.ground-ground p,
.ground-ground h1,
.ground-ground h2,
.ground-ground h3,
.ground-ground h4,
.ground-ground h5,
.ground-ground h6 {
    text-decoration: none;
}

.ground-ground img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.ground-ground {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.ground-ground a,
.ground-ground a:hover,
.ground-ground a:focus,
.ground-ground a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.ground-ground{
            background: #17212b;
            color: #8c9ea8;
            padding: 4rem 2rem 2rem 2rem;
            border-top: 1px solid #2b394a;
        }

.ground-ground .ground-ground-inner{
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 3rem;
        }

.ground-ground .ground-ground-top{
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 2.5rem;
        }

.ground-ground .ground-ground-brand{
            max-width: 380px;
        }

.ground-ground .ground-ground-brand-prompt{
            font-size: 1.4rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 1rem;
        }

.ground-ground .ground-ground-brand-memo{
            font-size: 0.9rem;
            line-height: 1.7;
            color: #8c9ea8;
        }

.ground-ground .ground-ground-spool-tape{
            display: flex;
            gap: 3.5rem;
            flex-wrap: wrap;
        }

.ground-ground .ground-ground-column{
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.ground-ground .ground-ground-column-prompt{
            font-size: 0.95rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 4px;
        }

.ground-ground .ground-ground-wire{
            font-size: 0.88rem;
            color: #8c9ea8;
        }

.ground-ground .ground-ground-wire:hover{
            color: #f8ac56;
        }

.ground-ground .ground-ground-pulse{
            border-top: 1px solid #242f3d;
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
        }