:root{--brand:#c6401a;--ink:#141110;--body:#231f20;--muted:#6e6560;--line:#e7e2de;--bg:#fbfaf9;--card:#fff}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--body);font:15px/1.7 system-ui,Noto Sans TC,Microsoft JhengHei,sans-serif}a{color:var(--brand)}.wrap{max-width:1040px;margin:0 auto;padding:24px 20px 64px}.topbar{border-bottom:1px solid var(--line);background:var(--card)}.topbar .wrap{display:flex;align-items:center;gap:20px;padding:14px 20px}.brand{font-weight:700;color:var(--brand);letter-spacing:.04em}.topbar nav{display:flex;gap:16px;margin-left:auto;align-items:center}.topbar nav a{color:var(--muted);text-decoration:none;font-size:14px}.topbar nav a:hover,h1{color:var(--ink)}h1{font-size:22px;margin:24px 0 4px}h2{font-size:16px;color:var(--ink);margin:28px 0 10px}.sub{color:var(--muted);font-size:14px;margin:0 0 20px}.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:16px}table{width:100%;border-collapse:collapse;font-size:14px}td,th{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{font-weight:600}label,th{color:var(--muted);font-size:13px}label{display:block;margin:12px 0 4px}input,select{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:7px;font:inherit;background:#fff}input:focus,select:focus{outline:2px solid rgba(198,64,26,.25);border-color:var(--brand)}button{background:var(--brand);color:#fff;border:0;border-radius:7px;padding:10px 18px;font:inherit;font-weight:600;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}button.ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}.grid2{display:grid;grid-template-columns:1fr 1fr;grid-gap:0 18px;gap:0 18px}.err{background:#fdf0ec;border:1px solid #f0c4b6;color:#9c2c0f;border-radius:7px}.err,.ok{padding:10px 12px;font-size:14px;margin:12px 0}.ok{background:#eef6ef;border:1px solid #c3e0c8;color:#2c6b36;border-radius:7px}.pill{display:inline-block;font-size:12px;padding:2px 9px;border-radius:99px;background:#f3efec;color:var(--muted)}.pill.on{background:#fdf0ec;color:var(--brand);font-weight:600}.actions{display:flex;gap:10px;margin-top:20px;align-items:center}.otp{letter-spacing:12px;font-size:24px;text-align:center}@media(max-width:640px){.grid2{grid-template-columns:1fr}}