:root{--accent:#2d5fa6;--accent-hover:#24508c;--bg:#f4f6f9;--surface:#ffffff;--border:#e3e8ef;--text:#1c2530;--muted:#5b6675;--danger:#c0392b;--success:#2e8b57;--warning:#b8860b;--radius:10px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:-apple-system,Noto Sans TC,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.wrap{max-width:520px;margin:0 auto;padding:20px 16px 40px;min-height:100vh}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:14px}h1{font-size:20px;margin:8px 0 4px}.sub{font-size:14px;margin:0 0 18px}.sub,label{color:var(--muted)}label{display:block;font-size:13px;margin:12px 0 4px}input,select,textarea{width:100%;padding:11px 12px;font-size:16px;border:1px solid var(--border);border-radius:8px;font-family:inherit;background:#fff;color:var(--text)}textarea{min-height:72px;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:13px 16px;font-size:16px;font-weight:600;border:none;border-radius:8px;cursor:pointer;font-family:inherit;background:var(--accent);color:#fff;margin-top:16px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--text);border:1px solid var(--border)}.msg{padding:12px 14px;border-radius:8px;font-size:14px;margin-top:14px}.msg.ok{background:#e6f4ec;color:var(--success)}.msg.err{background:#fbe9e7;color:var(--danger)}.row{display:flex;gap:10px}.row>*{flex:1 1}.hint{font-size:12px;color:var(--muted);margin-top:4px}.field-row{display:flex;align-items:center;gap:8px;margin:10px 0}.field-row label{margin:0;flex:0 0 86px}.field-row input{flex:1 1}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600}.badge.ok{background:#e6f4ec;color:var(--success)}.badge.err{background:#fbe9e7;color:var(--danger)}.center{text-align:center}.spin{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:s .7s linear infinite}@keyframes s{to{transform:rotate(1turn)}}a{color:var(--accent)}