:root{--color-text:#18181b;--color-muted:#6b6b76;--color-faint:#9a9aa5;--color-border:#e6e6ea;--color-surface:#fff;--color-subtle:#f6f6f8;--color-accent:#0f766e;--color-accent-soft:#e6f4f2;--color-warn-text:#8a5a00;--color-warn-bg:#fff8e6;--color-warn-border:#f3dca4;--color-danger:#c02626;--color-ok:#15803d;--radius:10px;--content-width:1120px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--color-subtle);color:var(--color-text);margin:0;font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.65}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{margin:0;line-height:1.3}h1{letter-spacing:-.01em;font-size:30px}h2{font-size:20px}h3{font-size:16px}.page{max-width:var(--content-width);margin:0 auto;padding:0 16px 48px}.price{font-variant-numeric:tabular-nums;font-weight:700}.site-header{background:var(--color-surface);border-bottom:1px solid 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