:root{
  --navy:#1f3a5f; --navy2:#2c5282; --blue:#3182ce; --blue-l:#ebf4ff;
  --bg:#f4f6fa; --card:#fff; --line:#e2e8f0; --muted:#718096; --text:#2d3748;
  --green:#2f855a; --red:#c53030;
}
*{box-sizing:border-box;}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:14px;}
a{color:var(--blue);text-decoration:none;}
button{font-family:inherit;cursor:pointer;}

/* 登录（金蝶风格左右分栏） */
.auth-page{display:flex;min-height:calc(100vh - 46px);}
/* 备案号页脚（全站） */
.site-beian{background:linear-gradient(135deg,var(--navy),var(--navy2));text-align:center;padding:14px 10px;font-size:12px;}
.site-beian a{color:rgba(255,255,255,.65);text-decoration:none;}
.site-beian a:hover{color:#fff;text-decoration:underline;}
.page-beian{text-align:center;padding:12px 10px;font-size:12px;background:var(--blue-l);}
.page-beian a{color:#7a8ba3;text-decoration:none;}
.page-beian a:hover{color:var(--navy);text-decoration:underline;}
.auth-hero{flex:1.1;background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;padding:64px 56px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;}
.auth-hero::after{content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:rgba(255,255,255,.06);}
.auth-hero::before{content:"";position:absolute;left:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;background:rgba(49,130,206,.18);}
.auth-hero .brand{font-size:22px;font-weight:700;display:flex;align-items:center;gap:10px;margin-bottom:36px;}
.brand-logo{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:#fff;color:var(--navy);font-weight:800;}
.auth-hero h1{font-size:38px;line-height:1.25;margin:0 0 16px;font-weight:700;letter-spacing:1px;}
.auth-hero .slogan{font-size:16px;color:rgba(255,255,255,.8);margin:0 0 34px;}
.auth-hero .feats{list-style:none;padding:0;margin:0;position:relative;z-index:1;}
.auth-hero .feats li{display:flex;align-items:center;gap:12px;padding:11px 0;font-size:15px;color:rgba(255,255,255,.92);border-bottom:1px solid rgba(255,255,255,.08);}
.auth-hero .feats .ic{font-size:18px;}
.auth-hero .hero-foot{margin-top:38px;font-size:12px;color:rgba(255,255,255,.55);}
.auth-side{flex:1;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:40px;}
.auth-card{background:#fff;border-radius:14px;width:380px;max-width:100%;padding:34px 34px 30px;box-shadow:0 16px 50px rgba(31,58,95,.12);}
.auth-card .tabs{display:flex;gap:8px;margin-bottom:24px;background:#f1f5f9;padding:5px;border-radius:10px;}
.auth-card .tab{flex:1;border:none;background:transparent;padding:9px 0;border-radius:7px;font-size:15px;color:var(--muted);font-weight:600;transition:.15s;}
.auth-card .tab.active{background:#fff;color:var(--navy);box-shadow:0 2px 8px rgba(0,0,0,.08);}
.auth-card label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px;}
.auth-card input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;}
.auth-card input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(49,130,206,.12);}
.auth-card .btn.block{width:100%;margin-top:22px;padding:11px;font-size:15px;font-weight:600;letter-spacing:2px;}
.err-msg{color:var(--red);font-size:13px;min-height:18px;margin-top:10px;}
.alt{margin-top:14px;font-size:13px;color:var(--muted);text-align:center;}
.alt a{color:var(--blue);}
.hint{margin-top:16px;font-size:12px;color:var(--muted);background:var(--blue-l);padding:10px;border-radius:8px;line-height:1.7;}
@media (max-width: 860px){
  .auth-hero{display:none;}
  .auth-side{flex:1;}
}

/* 布局 */
.layout{display:flex;min-height:100vh;}
.sidebar{width:210px;background:var(--navy);color:#fff;flex-shrink:0;padding:18px 0;position:sticky;top:0;height:100vh;overflow-y:auto;}
.sidebar .logo{font-size:16px;font-weight:700;padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:10px;}
.sidebar .nav-group{font-size:12px;color:rgba(255,255,255,.5);padding:14px 20px 4px;}
.sidebar .nav-item{padding:9px 20px;cursor:pointer;font-size:14px;border-left:3px solid transparent;display:flex;align-items:center;gap:8px;}
.sidebar .nav-item:hover{background:rgba(255,255,255,.08);}
.sidebar .nav-item.active{background:var(--blue);border-left-color:#fff;}
.main{flex:1;display:flex;flex-direction:column;min-width:0;}
.topbar{height:56px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:sticky;top:0;z-index:5;}
.topbar .title{font-weight:600;font-size:16px;}
.topbar .right{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);}
.content{padding:22px;overflow-y:auto;}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:18px;}
.card h3{margin:0 0 14px;font-size:15px;display:flex;align-items:center;justify-content:space-between;}
.btn{background:var(--blue);color:#fff;border:none;padding:8px 16px;border-radius:8px;font-size:13px;}
.btn:hover{background:var(--navy2);}
.btn.gray{background:#edf2f7;color:var(--text);}
.btn.gray:hover{background:#e2e8f0;}
.btn.red{background:var(--red);}
.btn.sm{padding:4px 10px;font-size:12px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th,td{padding:9px 10px;text-align:left;border-bottom:1px solid var(--line);}
th{background:#f7fafc;color:var(--muted);font-weight:600;white-space:nowrap;}
tbody tr:hover{background:#fafcff;}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end;}
.field{display:flex;flex-direction:column;gap:5px;}
.field label{font-size:12px;color:var(--muted);}
.field input,.field select{padding:8px 10px;border:1px solid var(--line);border-radius:7px;font-size:13px;min-width:140px;}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px 18px;}
.stat .v{font-size:26px;font-weight:700;color:var(--navy);}
.stat .k{font-size:13px;color:var(--muted);margin-top:4px;}
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.4);display:none;align-items:center;justify-content:center;z-index:50;}
.modal-mask.show{display:flex;}
.modal{background:#fff;border-radius:12px;width:520px;max-width:92vw;max-height:88vh;overflow-y:auto;padding:22px;}
.modal h3{margin:0 0 16px;font-size:16px;}
.modal .acts{display:flex;justify-content:flex-end;gap:10px;margin-top:18px;}
.empty{color:var(--muted);text-align:center;padding:30px;}
.toast{position:fixed;top:18px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;padding:10px 20px;border-radius:8px;z-index:99;opacity:0;transition:opacity .2s;}
.toast.show{opacity:1;}
.toast.err{background:var(--red);}
.muted{color:var(--muted);}.small{font-size:12px;}