:root{--bg:#f6f7fb;--card:#fff;--text:#1f2937;--muted:#6b7280;--primary:#2563eb;--danger:#dc2626;--line:#e5e7eb;--ok:#16a34a}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary);text-decoration:none}.topbar{height:58px;background:#111827;color:white;display:flex;align-items:center;justify-content:space-between;padding:0 20px}.topbar a{color:white;margin-left:14px}.layout{display:flex}.sidebar{width:240px;min-height:calc(100vh - 58px);background:white;border-right:1px solid var(--line);padding:18px}.sidebar a{display:block;padding:12px;border-radius:10px;color:#111827;margin-bottom:8px}.sidebar a:hover{background:#eef2ff}.content{flex:1;padding:22px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;margin-bottom:18px;box-shadow:0 2px 8px rgba(0,0,0,.03)}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.field label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:white}.field textarea{min-height:90px}.btn{border:0;border-radius:10px;padding:10px 14px;cursor:pointer;background:#e5e7eb;color:#111827;display:inline-block}.btn.primary{background:var(--primary);color:white}.btn.danger{background:var(--danger);color:white}.btn.ok{background:var(--ok);color:white}table{width:100%;border-collapse:collapse;background:white;border-radius:12px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}th{background:#f9fafb}.thumb{width:86px;height:64px;object-fit:cover;border-radius:8px;background:#eee}.login-bg{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{width:420px;background:white;padding:30px;border-radius:18px;border:1px solid var(--line);box-shadow:0 8px 30px rgba(0,0,0,.08)}.login-card input{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;margin:8px 0 14px}.badge{padding:4px 8px;border-radius:99px;background:#eef2ff;color:#3730a3;font-size:12px}.notice{padding:12px;border-radius:12px;background:#ecfeff;border:1px solid #a5f3fc}.dangerbox{padding:12px;border-radius:12px;background:#fef2f2;border:1px solid #fecaca}@media(max-width:900px){.layout{display:block}.sidebar{width:auto;min-height:auto}.grid,.form-grid{grid-template-columns:1fr}.content{padding:12px}table{font-size:12px}.topbar{height:auto;gap:8px;flex-wrap:wrap;padding:12px}}