:root{--primary:#6c4cf1;--ink:#1a1a2e;--muted:#5b5b73;--line:#e4e4ef;--bg:#f6f6fb;--card:#fff;--danger:#c0392b;--ok:#1e7d46;--radius:10px}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}button{font:inherit;cursor:pointer}input,select,textarea{font:inherit}a{color:var(--primary)}.topbar{background:var(--card);border-bottom:1px solid var(--line);z-index:10;flex-wrap:wrap;align-items:center;gap:12px;padding:12px 16px;display:flex;position:sticky;top:0}.logo{font-size:20px;font-weight:800}.logo span{color:var(--primary)}.topbar .tag{color:var(--muted);font-size:12px}.topbar nav{flex-wrap:wrap;gap:6px;margin-left:auto;display:flex}.tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px}.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}main{max-width:1080px;margin:0 auto;padding:16px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;padding:16px}.card h2{margin:0 0 4px;font-size:18px}.card h3{margin:14px 0 6px;font-size:15px}.muted{color:var(--muted);font-size:13px}.small{font-size:12px}.notice{border-radius:var(--radius);background:#fff8e1;border:1px solid #f0d48a;margin-bottom:14px;padding:10px 12px;font-size:13px}.notice.demo{background:#f1edfd;border-color:#b9a7f5}.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 14px}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn.danger{color:var(--danger);border-color:#f0c4bf}.btn:disabled{opacity:.5;cursor:default}.btnrow{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.field{margin-bottom:10px;display:block}.field>span{color:var(--muted);margin-bottom:4px;font-size:12px;font-weight:600;display:block}.field input[type=text],.field input[type=url],.field input[type=number],.field select,.field textarea{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;padding:8px 10px}.field textarea{resize:vertical;min-height:64px}.grid2{grid-template-columns:1fr 1fr;gap:12px;display:grid}@media (width<=720px){.grid2{grid-template-columns:1fr}}.builder{grid-template-columns:300px 1fr;align-items:start;gap:14px;display:grid}@media (width<=820px){.builder{grid-template-columns:1fr}}.qlist{margin:0;padding:0;list-style:none}.qlist li{border:1px solid var(--line);cursor:grab;background:#fff;border-radius:8px;align-items:center;gap:8px;margin-bottom:6px;padding:8px 10px;display:flex}.qlist li.selected{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}.qlist li.dragging{opacity:.4}.qlist .qtype{background:var(--bg);color:var(--muted);white-space:nowrap;border-radius:4px;padding:2px 6px;font-size:11px}.qlist .qlabel{text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:14px;overflow:hidden}.addtypes{flex-wrap:wrap;gap:6px;display:flex}.addtypes .btn{padding:6px 10px;font-size:13px}.checkrow{align-items:center;gap:6px;margin:8px 0;font-size:14px;display:flex}table.resp{border-collapse:collapse;width:100%;font-size:13px}table.resp th,table.resp td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:7px 8px}table.resp th{color:var(--muted);font-size:12px}.kv{word-break:break-word;font-size:13px}.kv b{color:var(--muted);font-size:11px;display:block}footer{text-align:center;color:var(--muted);padding:18px;font-size:12px}footer a{color:var(--muted)}.preview-wrap{border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:320px;padding:8px}.preview-wrap :where(input,select,textarea){width:100%}.error{color:var(--danger);font-size:13px}.okmsg{color:var(--ok);font-size:13px}.mono{word-break:break-all;font-family:ui-monospace,monospace;font-size:12px}