:root{--primary: #2a4d69;--accent: #0e9f8a;--bg: #f5f7fa;--surface: #fff;--fg: #1c2b3a;--muted: #6b7d8e;--border: #e2e8f0;--radius: 10px;--danger: #dc2626;--warn: #d97706;--success: #16a34a}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:PingFang SC,Microsoft YaHei,Noto Sans SC,sans-serif;background:var(--bg);color:var(--fg);font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--border);font-size:14px}th{color:var(--muted);font-weight:500;font-size:13px;background:var(--bg)}input,select{font-family:inherit;font-size:14px;padding:8px 12px;border:1px solid var(--border);border-radius:6px;outline:none;transition:border-color .2s}input:focus,select:focus{border-color:var(--primary)}.layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{background:var(--primary);color:#fff;padding:20px 0}.sidebar-brand{padding:0 20px 20px;border-bottom:1px solid rgba(255,255,255,.12);font-weight:700;font-size:17px;display:flex;align-items:center;gap:10px}.sidebar-brand img{height:32px;border-radius:6px;background:#fff;padding:2px 6px}.sidebar-nav{padding:12px 0;display:flex;flex-direction:column;gap:2px}.sidebar-nav a{padding:11px 20px;font-size:14px;color:#ffffffbf;transition:background .15s,color .15s;display:flex;align-items:center;gap:10px}.sidebar-nav a:hover,.sidebar-nav a.active{background:#ffffff1a;color:#fff}.sidebar-group{display:flex;flex-direction:column;gap:2px}.sidebar-group-header{padding:11px 20px;font-size:14px;color:#ffffff8c;cursor:pointer;display:flex;align-items:center;justify-content:space-between;-webkit-user-select:none;user-select:none;font-weight:600;letter-spacing:.5px;text-transform:uppercase;font-size:12px}.sidebar-group-header:hover{color:#fffc}.sidebar-sub-item{padding-left:36px!important;font-size:13px!important}.main{padding:24px 32px}.main-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.main-title{font-size:22px;font-weight:700}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:16px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stat-label{font-size:13px;color:var(--muted);margin-bottom:4px}.stat-val{font-size:28px;font-weight:700;color:var(--primary)}.stat-val--danger{color:var(--danger)}.stat-val--accent{color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 18px;border-radius:6px;font-size:14px;font-weight:500;transition:background .15s,color .15s}.btn--primary{background:var(--primary);color:#fff}.btn--primary:hover{opacity:.9}.btn--accent{background:var(--accent);color:#fff}.btn--ghost{border:1px solid var(--border);color:var(--fg)}.btn--danger{background:var(--danger);color:#fff}.btn--sm{padding:5px 12px;font-size:13px}.badge{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:600}.badge--green{background:#dcfce7;color:#166534}.badge--blue{background:#dbeafe;color:#1e40af}.badge--yellow{background:#fef3c7;color:#92400e}.badge--red{background:#fee2e2;color:#991b1b}.badge--gray{background:#f1f5f9;color:#475569}.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.toolbar input,.toolbar select{min-width:160px}.empty{text-align:center;padding:40px;color:var(--muted)}.pagination{display:flex;justify-content:center;gap:8px;margin-top:16px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:100;display:flex;align-items:center;justify-content:center}.modal{background:var(--surface);border-radius:var(--radius);padding:24px;width:min(520px,92vw);max-height:85vh;overflow-y:auto}.modal-title{font-size:17px;font-weight:700;margin-bottom:16px}.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.form-row label{font-size:13px;font-weight:500;color:var(--muted)}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}