:root{color-scheme:light dark}html[data-theme=light]{--bg: #f4f6fa;--surface: #ffffff;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--accent: #2563eb;--accent-dim: #1d4ed8;--danger: #dc2626}html[data-theme=dark]{--bg: #0f1419;--surface: #1a2332;--text: #e8edf5;--muted: #94a3b8;--border: #2d3a4f;--accent: #5b8cff;--accent-dim: #3d6fd8;--danger: #f87171}*{box-sizing:border-box}body{margin:0;font-family:SF Pro Display,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);min-height:100dvh;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}button,input,textarea{font:inherit}.app-shell{max-width:720px;margin:0 auto;padding:1rem 1.25rem calc(1.5rem + env(safe-area-inset-bottom))}.topbar{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:1.25rem}.brand{font-weight:700;letter-spacing:-.02em;font-size:1.15rem}.card-grid{display:grid;gap:1rem}@media (min-width: 640px){.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}}.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.25rem 1.35rem;box-shadow:0 8px 30px #0000000f;transition:transform .15s ease,border-color .15s ease}html[data-theme=dark] .card{box-shadow:0 12px 40px #00000059}.card:active{transform:scale(.99)}.card h2{margin:0 0 .35rem;font-size:1.1rem}.card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.45}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.65rem 1rem;border-radius:12px;border:none;cursor:pointer;font-weight:600;background:var(--accent);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}.btn.danger{background:var(--danger)}.btn-ghost{background:transparent;color:var(--muted);border:none;padding:.35rem .5rem;cursor:pointer;font-size:.9rem}.field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:.85rem}.field label{font-size:.85rem;color:var(--muted)}.field input,.field textarea{padding:.65rem .75rem;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text)}.field textarea{min-height:160px;resize:vertical}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.85rem;white-space:pre-wrap;word-break:break-word}.tabs{display:flex;gap:.35rem;flex-wrap:wrap;margin-bottom:1rem}.tab{padding:.45rem .75rem;border-radius:999px;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;font-size:.88rem}.tab.active{background:var(--accent);color:#fff;border-color:transparent}.toast{position:fixed;bottom:calc(1rem + env(safe-area-inset-bottom));left:50%;transform:translate(-50%);background:var(--surface);border:1px solid var(--border);padding:.65rem 1rem;border-radius:12px;box-shadow:0 8px 32px #0003;z-index:50;max-width:90vw;font-size:.9rem}.checkbox-row{display:flex;align-items:flex-start;gap:.5rem;padding:.65rem 0;border-bottom:1px solid var(--border)}.checkbox-row textarea{width:100%;min-height:72px}.wide{width:100%}.stack{display:flex;flex-direction:column;gap:.75rem}.row{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}.muted{color:var(--muted);font-size:.88rem}