:root {
    --hue-primary: #db5422;
    --hue-accent: #f87139;
    --hue-surface: #121826;
    --hue-surface-light: #1a2234;
    --hue-bg: #0b0f19;
    --radius-main: 14px;
    --radius-lg: 16px;
  }

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

  body {
    background-color: var(--hue-bg);
    color: #f0f4f8;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
    word-break: break-word;
    overflow-wrap: break-word;
  }

  /* 顶部导航栏 - 复用首页原构件 */
  .crown {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(11, 15, 25, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(219, 84, 34, 0.18);
    padding: 16px 0;
  }

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

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

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

  .steer {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    align-items: center;
    min-width: 0;
  }

  .horn {
    color: #94a3b8;
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.25s ease, transform 0.25s ease;
    display: inline-block;
    word-break: keep-all;
  }

  .horn:hover,
  .horn.active {
    color: var(--hue-accent);
  }

  /* 主容器与布局 */
  .vault {
    width: 100%;
    margin: 0 auto;
  }

  /* 顶层区块 1: Hero 下载首屏 */
  .rally {
    padding: 64px 0 80px;
    position: relative;
    background: radial-gradient(circle at 80% 20%, rgba(219, 84, 34, 0.12) 0%, transparent 60%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .surge {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 48px;
  }

  .surge-left {
    flex: 1 1 500px;
    min-width: 0;
  }

  .surge-right {
    flex: 1 1 420px;
    min-width: 0;
  }

  .spark-major {
    font-size: clamp(32px, 4.2vw, 52px);
    font-weight: 800;
    line-height: 1.25;
    color: #ffffff;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    word-break: keep-all;
    white-space: normal;
  }

  .spark-highlight {
    background: linear-gradient(135deg, #ffffff 0%, var(--hue-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .bloom-lead {
    font-size: 17px;
    color: #cbd5e1;
    margin-bottom: 36px;
    line-height: 1.75;
    max-width: 580px;
  }

  .sigil-acquire {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-bottom: 24px;
  }

  .charge-primary {
    padding: 15px 36px;
    background: linear-gradient(135deg, var(--hue-accent) 0%, var(--hue-primary) 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    border-radius: var(--radius-main);
    box-shadow: 0 8px 24px rgba(219, 84, 34, 0.35);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }

  .charge-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(219, 84, 34, 0.48);
  }

  .charge-secondary {
    padding: 15px 28px;
    background: rgba(255, 255, 255, 0.06);
    color: #f0f4f8;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-main);
    transition: background 0.25s ease, border-color 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
  }

  .charge-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(219, 84, 34, 0.4);
  }

  .notch-status {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 13px;
    color: #94a3b8;
  }

  .notch-status span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .whisper-sheaf {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 12px;
    background: linear-gradient(135deg, rgba(219, 84, 34, 0.3) 0%, rgba(26, 34, 52, 0.6) 100%);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  }

  .sheaf-corral {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-main);
    object-fit: cover;
  }

  /* 顶层区块 2: 版本选择 (Article) */
  .summit {
    padding: 88px 0;
    background-color: var(--hue-bg);
  }

  .spark-corral {
    font-size: clamp(26px, 3vw, 36px);
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 12px;
  }

  .bloom-desc {
    color: #94a3b8;
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
    font-size: 16px;
  }

  .sigil-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
  }

  .plaque {
    background: var(--hue-surface);
    border: 1px solid rgba(219, 84, 34, 0.2);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    min-width: 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }

  .plaque:hover {
    transform: translateY(-4px);
    border-color: var(--hue-accent);
    box-shadow: 0 16px 40px rgba(219, 84, 34, 0.2);
  }

  .hoof {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: rgba(219, 84, 34, 0.12);
    border: 1px solid rgba(219, 84, 34, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--hue-accent);
  }

  .spark-strand {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
  }

  .bloom {
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
  }

  .notch-info {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 12px;
    color: #64748b;
    margin-bottom: 24px;
    padding-top: 12px;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
  }

  .stamp {
    width: 100%;
    padding: 12px;
    text-align: center;
    background: rgba(219, 84, 34, 0.15);
    color: var(--hue-accent);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    border-radius: 10px;
    border: 1px solid rgba(219, 84, 34, 0.3);
    transition: background 0.25s ease, color 0.25s ease;
    display: inline-block;
  }

  .stamp:hover {
    background: var(--hue-accent);
    color: #ffffff;
  }

  /* 顶层区块 3: 环境要求与指引 (Aside) */
  .haven {
    padding: 80px 0;
    background: var(--hue-surface-light);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }

  .sigil-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
  }

  .clod-specs {
    background: var(--hue-surface);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 28px;
    min-width: 0;
  }

  .spark-sub {
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .pasture-sprout {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .strand-spec {
    font-size: 14px;
    color: #cbd5e1;
    display: flex;
    justify-content: space-between;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .strand-spec span:last-child {
    color: #94a3b8;
  }

  /* FAQ Accordion */
  .whisper-faq {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  .clod-faq {
    background: var(--hue-surface);
    border: 1px solid rgba(219, 84, 34, 0.15);
    border-radius: var(--radius-main);
    padding: 16px 24px;
    transition: border-color 0.25s ease;
  }

  .clod-faq[open] {
    border-color: var(--hue-accent);
  }

  .spark-faq {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    cursor: pointer;
    outline: none;
  }

  .clod-faq .bloom {
    margin-top: 12px;
    margin-bottom: 0;
    font-size: 14px;
    color: #94a3b8;
  }

  /* 页脚区域 - 使用 section 包装 */
  .spur {
    background-color: #070a12;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 64px 0 40px;
  }

  .bedrock {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: space-between;
    margin-bottom: 48px;
  }

  .meadow {
    flex: 1 1 240px;
    min-width: 0;
  }

  .spark-bedrock {
    font-size: 20px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
  }

  .pasture-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .horn-spur {
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.25s ease;
  }

  .horn-spur:hover {
    color: var(--hue-accent);
  }

  .bloom-copyright {
    color: #475569;
    font-size: 13px;
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
  }

  /* 响应式调整 */
  @media (max-width: 768px) {
    .crown {
      padding: 12px 0;
    }
    .steer {
      gap: 16px;
    }
    .rally {
      padding: 40px 0 60px;
    }
    .surge {
      gap: 32px;
    }
    .summit,
    .haven {
      padding: 56px 0;
    }
    .sigil-matrix {
      grid-template-columns: 1fr;
    }
  }

.crest-crown{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 15, 25, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(219, 84, 34, 0.25);
        }

.crest-crown .crest-corral{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 76px;
        }

.crest-crown .crest-mark{
            display: flex;
            align-items: center;
            min-width: 0;
        }

.crest-crown .crest-mark img{
            height: 38px;
            width: auto;
            display: block;
        }

.crest-crown .crest-steer{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

.crest-crown .crest-horn{
            padding: 8px 18px;
            font-size: 15px;
            font-weight: 500;
            color: #94a3b8;
            border-radius: 8px;
            transition: all 0.25s ease;
        }

.crest-crown .crest-horn:hover{
            color: #ffffff;
            background: rgba(219, 84, 34, 0.15);
        }

.crest-crown .crest-horn.active{
            color: #ffffff;
            background: #db5422;
            box-shadow: 0 4px 14px rgba(219, 84, 34, 0.4);
        }

@media (max-width: 768px){.crest-crown .crest-corral{
                height: auto;
                padding: 16px;
                gap: 12px;
            }

.crest-crown .crest-steer{
                width: 100%;
                justify-content: space-between;
            }

.crest-crown .crest-horn{
                padding: 6px 12px;
                font-size: 13px;
            }}

.crest-crown {
    background: rgb(11, 15, 25);
    background-image: none;
}

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

.bedrock-bedrock [role="navigation"],
.bedrock-bedrock div,
.bedrock-bedrock section,
.bedrock-bedrock article,
.bedrock-bedrock aside,
.bedrock-bedrock p,
.bedrock-bedrock h1,
.bedrock-bedrock h2,
.bedrock-bedrock h3,
.bedrock-bedrock h4,
.bedrock-bedrock h5,
.bedrock-bedrock h6,
.bedrock-bedrock a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

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

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

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

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

.bedrock-bedrock{
            background: #070a11;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 60px 0 30px;
        }

.bedrock-bedrock .bedrock-spur-inner{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: space-between;
        }

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

.bedrock-bedrock .bedrock-spark-brand{
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

.bedrock-bedrock .bedrock-bloom-bloom{
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.6;
        }

.bedrock-bedrock .bedrock-sigil-links{
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

.bedrock-bedrock .bedrock-clod-col{
            flex: 1 1 120px;
            min-width: 0;
        }

.bedrock-bedrock .bedrock-spark-subhead{
            font-size: 14px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }

.bedrock-bedrock .bedrock-sigil-spur-sprout{
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

.bedrock-bedrock .bedrock-horn-spur{
            font-size: 13px;
            color: #94a3b8;
            transition: color 0.25s ease;
        }

.bedrock-bedrock .bedrock-horn-spur:hover{
            color: #f87139;
        }

.bedrock-bedrock .bedrock-notch-bottom{
            max-width: 1320px;
            margin: 40px auto 0;
            padding: 24px 24px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 12px;
            color: #64748b;
        }