:root{--bg:#f6f5f2;--surface:#fff;--surface-2:#fbfaf8;--text:#1f2328;--muted:#6b7280;--line:#e5e2dc;--accent:#d97706;--accent-soft:#fef3c7;--radius:12px;--shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.04);--md-text:#374151;--md-head:#111827;--md-border:#e5e7eb;--md-code-bg:#f3f4f6;--md-code-text:#b45309;--md-pre-text:#111827;--md-quote:#4b5563;--md-link:#b45309;--md-ev-ok:#047857;--md-ev-file:#1d4ed8;--md-ev-said:#b45309;--md-ev-guess:#6b7280}
@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--surface:#161a20;--surface-2:#1b2027;--text:#e5e7eb;--muted:#9ca3af;--line:#2a3038;--accent:#f59e0b;--accent-soft:#3a2a0a;--shadow:none;--md-text:#d1d5db;--md-head:#f3f4f6;--md-border:#2a3038;--md-code-bg:#15181e;--md-code-text:#fbbf24;--md-pre-text:#e5e7eb;--md-quote:#9ca3af;--md-link:#f59e0b;--md-ev-ok:#34d399;--md-ev-file:#93c5fd;--md-ev-said:#fbbf24;--md-ev-guess:#9ca3af}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{width:100%;max-width:920px;margin:0 auto;padding:0 20px}.site-header{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:56px;gap:16px}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:600;letter-spacing:.02em;min-width:0}.brand:hover{text-decoration:none}.brand-mark{width:12px;height:12px;border-radius:3px;background:var(--accent);display:inline-block;flex:none}.brand .name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}nav a{color:var(--muted);font-size:14px;padding:6px 10px;border-radius:8px}nav a[aria-current=page]{color:var(--text);background:var(--surface-2)}main{padding:28px 0 56px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{padding:28px}.eyebrow{margin:0 0 8px;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}.hero h1{margin:0 0 10px;font-size:clamp(26px,4vw,34px);line-height:1.25}.hero p{margin:0 0 8px;color:var(--muted)}.muted{color:var(--muted)}.category{margin-top:28px}.category-head{display:flex;align-items:baseline;gap:10px;margin:0 0 12px}.category-head h2{margin:0;font-size:18px}.count{color:var(--muted);font-size:13px}.cards{display:grid;gap:14px}.article-card{display:block;padding:18px 20px;color:var(--text)}.article-card:hover{border-color:var(--accent);text-decoration:none}.article-card .meta{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted);margin-bottom:6px}.tag{display:inline-block;padding:1px 8px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:12px;font-weight:600}.article-card h3{margin:0 0 6px;font-size:17px;line-height:1.5}.article-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.read{display:inline-block;margin-top:10px;font-size:13px;color:var(--accent)}.article{padding:32px}.crumbs{font-size:13px;color:var(--muted);margin-bottom:14px}.article h1{margin:0 0 8px;font-size:clamp(24px,3.6vw,32px);line-height:1.3}.article .doc-meta{color:var(--muted);font-size:13px;margin:0 0 22px}.toc{margin:0 0 24px;padding:14px 18px;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;font-size:14px}.toc summary{cursor:pointer;font-weight:600}.toc ol{margin:10px 0 0;padding-left:20px}.toc li{margin:3px 0}.article-body{font-size:16px}.article-body h1,.article-body h2,.article-body h3,.article-body h4{scroll-margin-top:72px}.article-body img{max-width:100%;height:auto}.back{display:inline-block;margin-top:28px;font-size:14px}.site-footer{border-top:1px solid var(--line);padding:22px 0 32px;color:var(--muted);font-size:13px}.site-footer p{margin:4px 0}@media (max-width:640px){.hero{padding:22px}.article{padding:22px}.container{padding:0 16px}}.site-footer .icp a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}.site-footer .icp a:hover{color:var(--accent)}
