:root { --ink:#1e293b; --muted:#64748b; --line:#e2e8f0; --brand:#2563eb; --paper:#f8fafc; }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; background: var(--paper); color: var(--ink); line-height: 1.7; padding: 48px 20px; }
    .wrap { max-width: 720px; margin: 0 auto; }
    .back { display: inline-block; color: var(--brand); text-decoration: none; font-size: 14px; margin-bottom: 20px; }
    .back:hover { text-decoration: underline; }
    h1 { font-size: 26px; margin-bottom: 6px; }
    .sub { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
    .note { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; border-radius: 10px; padding: 12px 16px; font-size: 13.5px; margin-bottom: 28px; }
    .ver { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; margin-bottom: 16px; }
    .ver-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 4px; flex-wrap: wrap; }
    .ver-tag { background: var(--brand); color: #fff; font-size: 13px; font-weight: 600; padding: 2px 10px; border-radius: 999px; }
    .ver-date { color: var(--muted); font-size: 13px; }
    .ver-latest { font-size: 12px; color: var(--brand); border: 1px solid var(--brand); border-radius: 999px; padding: 1px 8px; }
    .ver-sub { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
    ul { padding-left: 20px; }
    li { margin-bottom: 6px; font-size: 14.5px; }
    li.fix::marker { content: "· "; }
    .foot { margin-top: 36px; color: var(--muted); font-size: 13px; text-align: center; }