:root{--bg:#f5f7fb;--panel:#ffffff;--line:#d9e0ea;--text:#172033;--muted:#667085;--brand:#176b87;--brand-dark:#0f4c5c;--danger:#b42318;--warn:#b54708}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Microsoft YaHei,Noto Sans SC,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.login-page{min-height:100vh;display:grid;place-items:center;background:#eef3f7}.login-box,.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 32px rgba(23,32,51,.08)}.login-box{width:min(420px,calc(100vw - 32px));padding:28px}.field{display:grid;grid-gap:6px;gap:6px;margin-bottom:14px}.field label{color:var(--muted);font-size:13px}.input,.select,.textarea{width:100%;min-height:38px;border:1px solid var(--line);border-radius:6px;padding:8px 10px;background:#fff}.btn{border:1px solid var(--brand);background:var(--brand);color:#fff;border-radius:6px;padding:8px 12px;cursor:pointer}.btn.secondary{background:#fff;color:var(--brand)}.btn.danger{border-color:var(--danger);color:#fff;background:var(--danger)}.btn:disabled{opacity:.55;cursor:not-allowed}.app{min-height:100vh;display:grid;grid-template-columns:236px 1fr}.sidebar{background:#152033;color:#d8e2ef;padding:18px 14px}.brand{color:#fff;font-weight:700;font-size:20px;padding:8px 10px 18px}.nav{display:grid;grid-gap:4px;gap:4px}.nav a{padding:10px 12px;border-radius:6px;color:#d8e2ef}.nav a.active,.nav a:hover{background:rgba(255,255,255,.1);color:#fff}.main{min-width:0;display:grid;grid-template-rows:auto 1fr}.topbar{height:58px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px}.content{padding:22px}.toolbar{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:14px}.panel{padding:16px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:8px}table{width:100%;border-collapse:collapse;min-width:780px;background:#fff}td,th{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:14px}th{background:#f8fafc;color:#475467;font-weight:600}.actions{display:flex;gap:8px;flex-wrap:wrap}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px}.muted{color:var(--muted)}.error{color:var(--danger);margin-top:10px}.badge{display:inline-flex;border-radius:999px;padding:2px 8px;background:#edf7f9;color:var(--brand-dark);font-size:12px}.warn{color:var(--warn);font-weight:700}@media (max-width:860px){.app{grid-template-columns:1fr}.sidebar{position:static}.nav{grid-template-columns:repeat(2,minmax(0,1fr))}.grid{grid-template-columns:1fr}}