:root{--bg:#f5f6f8;--panel:#fff;--border:#e4e6eb;--text:#1c1e21;--text-muted:#65676b;--accent:#2f6fed;--accent-hover:#2559c4;--success:#1a9e5a;--warning:#d97706;--danger:#d64545;--radius:14px}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.5}#app{max-width:480px;margin:0 auto;padding:32px 20px 64px}.brand{text-align:center;margin-bottom:28px}.brand h1{margin:0 0 4px;font-size:20px;font-weight:600}.brand p{color:var(--text-muted);margin:0;font-size:13px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;padding:20px;box-shadow:0 1px 2px #00000008}.card h2{margin:0 0 14px;font-size:15px;font-weight:600}.row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 12px;padding:8px 0;display:flex}.row+.row{border-top:1px solid var(--border)}.label{color:var(--text-muted);flex-shrink:0;font-size:13px}.value{word-break:break-all;text-align:right;font-family:SFMono-Regular,Consolas,Menlo,monospace;font-size:13px}.hexval{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:6px;display:inline-flex}.copy-btn{font:inherit;background:var(--bg);color:var(--accent);border:1px solid var(--border);cursor:pointer;border-radius:8px;min-height:32px;padding:6px 10px;font-size:12px}.copy-btn:active{background:var(--border)}.field{font:inherit;border:1px solid var(--border);min-height:44px;color:var(--text);background:#fff;border-radius:8px;padding:10px}textarea.field{min-height:72px}button{font:inherit;cursor:pointer;border:none;border-radius:10px;min-height:44px;padding:10px 18px;transition:background-color .15s}button.primary{background:var(--accent);color:#fff;width:100%}button.primary:hover{background:var(--accent-hover)}button.primary:disabled{cursor:not-allowed;background:#c8ccd6}button.secondary{color:var(--accent);border:1px solid var(--accent);background:0 0;width:100%}.status-pill{border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:500;display:inline-flex}.status-pill.ok{color:var(--success);background:#1a9e5a1a}.status-pill.warn{color:var(--warning);background:#d977061a}.status-pill.error{color:var(--danger);background:#d645451a}.status-pill .dot{background:currentColor;border-radius:50%;width:7px;height:7px}.hint{color:var(--text-muted);margin-top:10px;font-size:13px;line-height:1.6}.hint.error{color:var(--danger)}.spinner{vertical-align:-2px;border:2px solid #0000001f;border-top-color:currentColor;border-radius:50%;width:13px;height:13px;margin-right:6px;animation:.7s linear infinite tm-spin;display:inline-block}button .spinner{border-color:#fff #ffffff59 #ffffff59}button.secondary .spinner{border-color:#2f6fed40;border-top-color:var(--accent)}@keyframes tm-spin{to{transform:rotate(360deg)}}