:root{--bg: #f3f5f8;--card: #fff;--line: #e5e9f0;--text: #1d2b3a;--muted: #6b7c8f;--brand: #1a6fd4;--brand-dark: #1256a8;--ok: #1a8f5c;--warn: #c97800;--bad: #c0392b;--head: #1f4e79}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.layout{display:grid;grid-template-columns:232px 1fr;min-height:100%}.side{background:#16324f;color:#dbe8f5;padding:22px 14px;display:flex;flex-direction:column;gap:6px}.brand{font-size:18px;font-weight:700;color:#fff;padding:0 10px 16px;letter-spacing:.5px}.nav a,.nav button{display:block;width:100%;text-align:left;background:none;border:0;color:#dbe8f5;padding:10px 12px;border-radius:8px;cursor:pointer}.nav a.active,.nav a:hover,.nav button:hover{background:#1f4e79;color:#fff}.side .who{margin-top:auto;padding:12px;font-size:12px;color:#9bb4cc}.main{padding:24px 28px 48px;overflow:auto}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}h1{font-size:22px;margin:0}.muted{color:var(--muted);font-size:13px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}.card .k{font-size:12px;color:var(--muted)}.card .v{font-size:24px;font-weight:700;margin-top:6px}.table{width:100%;border-collapse:collapse;background:#fff;font-size:13px}.table th,.table td{border:1px solid #cfd8e3;padding:8px 10px;vertical-align:top}.table th{background:#1f4e79;color:#fff;font-weight:600}.table .cat{background:#eaf2fb;font-weight:600}.btn{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:8px 14px;cursor:pointer}.btn:hover{background:var(--brand-dark)}.btn.ghost{background:#fff;color:var(--brand);border:1px solid #bcd3ef}.btn.danger{background:var(--bad)}.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#eaf2fb;color:#1f4e79}.tag.warn{background:#fff4d6;color:#8a5a00}.tag.ok{background:#e5f7ee;color:#146c43}.tag.bad{background:#fde8e6;color:#9b1c1c}.login{min-height:100%;display:grid;place-items:center;background:linear-gradient(160deg,#12385c,#1a6fd4)}.login-box{width:420px;background:#fff;border-radius:16px;padding:28px}.login-box h1{margin-bottom:6px}.login-box select,.login-box input,textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;margin:8px 0 14px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.score-input{width:72px;padding:4px 6px}.alert{background:#fff4d6;border:1px solid #f0d48a;padding:10px 12px;border-radius:8px;margin-bottom:12px}.error{color:var(--bad);font-size:13px}@media(max-width:900px){.layout{grid-template-columns:1fr}.side{display:none}.grid{grid-template-columns:1fr 1fr}}