:root{--bg: #f6f8fa;--fg: #0f1419;--muted: #5b6b7c;--border: #dfe5ec;--card: #ffffff;--accent: #2d6cdf;--cache: #0b7a3f;--cache-bg: #e6f7ed;--upstream: #4a5b73;--upstream-bg: #eef2f8;color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Helvetica Neue,sans-serif;color:var(--fg);background:var(--bg)}*{box-sizing:border-box}body{margin:0;padding:0;line-height:1.6}h1,h2,h3{line-height:1.3;margin:0}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;background:#eef1f5;border-radius:4px;padding:1px 5px;overflow-wrap:anywhere}pre{margin:0;padding:12px 14px;background:#10151c;color:#e6edf3;border-radius:8px;overflow-x:auto;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.8rem;line-height:1.5}pre code{background:none;padding:0;color:inherit;font-size:inherit;overflow-wrap:normal}a{color:var(--accent)}button{font:inherit;padding:7px 14px;border:1px solid var(--accent);border-radius:8px;background:var(--accent);color:#fff;cursor:pointer}button:hover:not(:disabled){filter:brightness(1.08)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:transparent;color:var(--accent)}input,select{font:inherit;padding:6px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;color:inherit;min-width:0}.panel{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px}@media(max-width:600px){.panel{padding:14px 12px}}.panel>h2{font-size:1.05rem;margin-bottom:4px}.panel-note{margin:0 0 14px;color:var(--muted);font-size:.85rem}