:root{--bg: #0f1115;--surface: #171a21;--surface-2: #1e222b;--border: #2a2f3a;--text: #e6e8ec;--muted: #9aa3b2;--accent: #6ea8fe;--accent-dim: #2b3a55;--code-bg: #12151c;--radius: 10px;--mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}code,pre,.mono{font-family:var(--mono)}.shell{max-width:860px;margin:0 auto;padding:0 20px 80px}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:baseline;gap:20px;padding:14px 20px;background:#0f1115e6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.topbar .brand{font-weight:600;letter-spacing:.02em;color:var(--text)}.topbar nav{display:flex;gap:16px}.topbar nav a{color:var(--muted);font-size:14px}.topbar nav a.router-link-active{color:var(--text)}h1{font-size:26px;margin:28px 0 6px}h2{font-size:16px;margin:32px 0 10px;color:var(--muted);font-weight:600}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.tag{display:inline-block;padding:2px 9px;margin-right:6px;border-radius:999px;background:var(--accent-dim);color:var(--accent);font-size:12px}.muted{color:var(--muted)}.placeholder{color:var(--muted);padding:40px 0}