/* ===== 老李头后台样式 ===== */
:root{
  --brand:#1F4E96;--brand-2:#2F6EC1;--brand-soft:#E7EEF9;
  --ink:#20242B;--mut:#6E7480;--line:#E7E5DD;--paper:#F6F5F0;
  --danger:#D64545;--danger-soft:#FCE8E8;--ok:#2E9E6B;--ok-soft:#E4F4EC;
  --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{font-family:-apple-system,'PingFang SC','Noto Sans SC','Microsoft YaHei','Segoe UI',sans-serif;background:var(--paper);color:var(--ink);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--ink);}

/* 登录 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#173F7D 0%,#1F4E96 50%,#2F6EC1 100%);padding:24px;}
.login-box{background:#fff;border-radius:18px;padding:36px 32px;width:100%;max-width:380px;box-shadow:0 20px 60px -20px rgba(0,0,0,.4);}
.login-logo{width:56px;height:56px;display:block;margin:0 auto 12px;}
.login-box h1{font-size:20px;font-weight:800;text-align:center;letter-spacing:1px;}
.login-sub{font-size:12.5px;color:var(--mut);text-align:center;margin:4px 0 20px;}
.field{display:block;margin-bottom:14px;}
.field span{display:block;font-size:12.5px;color:var(--mut);margin-bottom:5px;}
.field input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;outline:none;transition:border-color .2s,box-shadow .2s;}
.field input:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,110,193,.12);}
.login-err{color:var(--danger);font-size:12.5px;min-height:18px;margin-bottom:6px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border-radius:10px;font-size:14px;font-weight:500;border:1px solid var(--line);background:#fff;color:var(--ink);transition:all .18s;}
.btn:hover{border-color:var(--brand-2);color:var(--brand);}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-2);color:#fff;}
.btn-danger{background:var(--danger);border-color:var(--danger);color:#fff;}
.btn-danger:hover{background:#c23a3a;color:#fff;}
.btn-block{width:100%;padding:11px;font-size:15px;font-weight:700;}
.back-link{display:block;text-align:center;font-size:12.5px;color:var(--mut);margin-top:14px;}
.back-link:hover{color:var(--brand);}

/* 布局 */
.layout{display:flex;min-height:100vh;}
.sidebar{width:224px;flex-shrink:0;background:#0F1F3D;color:#fff;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;}
.side-brand{display:flex;align-items:center;gap:10px;padding:18px 18px 14px;border-bottom:1px solid rgba(255,255,255,.08);}
.side-brand svg{width:34px;height:34px;flex-shrink:0;}
.side-name{font-size:15px;font-weight:800;letter-spacing:1px;}
.side-user{font-size:11.5px;color:rgba(255,255,255,.55);}
.side-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:2px;overflow-y:auto;}
.side-item{text-align:left;padding:10px 14px;border-radius:10px;font-size:14px;color:rgba(255,255,255,.78);transition:all .15s;}
.side-item:hover{background:rgba(255,255,255,.08);color:#fff;}
.side-item.on{background:var(--brand-2);color:#fff;font-weight:600;}
.side-foot{padding:14px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-direction:column;gap:4px;}
.side-link{display:block;text-align:left;padding:8px 14px;border-radius:10px;font-size:13px;color:rgba(255,255,255,.7);transition:all .15s;}
.side-link:hover{background:rgba(255,255,255,.08);color:#fff;}
.content{flex:1;min-width:0;padding:24px 28px 60px;}
.content-head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px;flex-wrap:wrap;}
.content-head h2{font-size:22px;font-weight:800;letter-spacing:1px;}
.content-sub{font-size:12.5px;color:var(--mut);}

/* 通用卡片/表格 */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px;}
.card-title{font-size:14.5px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:14px;}
.toolbar input[type=text],.toolbar select{min-width:180px;}
.input,.select{padding:8px 12px;border:1px solid var(--line);border-radius:9px;outline:none;background:#fff;}
.input:focus,.select:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,110,193,.12);}
.table{width:100%;border-collapse:collapse;font-size:13.5px;}
.table th{text-align:left;padding:9px 10px;color:var(--mut);font-weight:600;font-size:12.5px;border-bottom:1px solid var(--line);white-space:nowrap;}
.table td{padding:9px 10px;border-bottom:1px solid #F0EFE9;vertical-align:middle;}
.table tr:hover td{background:#FAFAF7;}
.td-name{font-weight:600;}
.td-desc{color:var(--mut);font-size:12.5px;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.td-tags{display:inline-flex;gap:4px;flex-wrap:wrap;}
.tag{font-size:10.5px;color:var(--brand);background:var(--brand-soft);border-radius:5px;padding:1px 7px;}
.row-actions{display:flex;gap:4px;flex-wrap:wrap;}
.mini-btn{padding:4px 9px;font-size:12px;border-radius:7px;border:1px solid var(--line);background:#fff;color:var(--mut);transition:all .15s;}
.mini-btn:hover{border-color:var(--brand-2);color:var(--brand);}
.mini-btn.danger:hover{border-color:var(--danger);color:var(--danger);background:var(--danger-soft);}
.empty{text-align:center;color:var(--mut);font-size:13px;padding:28px 0;}

/* 仪表盘 */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:18px;}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;}
.stat-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.1;}
.stat-label{font-size:12.5px;color:var(--mut);margin-top:4px;}
.dist-chart{width:100%;}
.dist-row{display:flex;align-items:center;gap:10px;margin-bottom:9px;font-size:12.5px;}
.dist-name{flex:0 0 80px;text-align:right;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dist-bar-wrap{flex:1;background:#F1EFE8;border-radius:6px;height:18px;overflow:hidden;}
.dist-bar{height:100%;border-radius:6px;background:linear-gradient(90deg,#1F4E96,#2F6EC1);}
.dist-num{flex:0 0 44px;font-weight:700;color:var(--ink);}

/* 弹层 */
.modal-mask{position:fixed;inset:0;background:rgba(10,25,51,.5);display:flex;align-items:center;justify-content:center;z-index:200;padding:20px;}
.modal{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:86vh;display:flex;flex-direction:column;box-shadow:0 24px 70px -20px rgba(0,0,0,.4);}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.modal-head h3{font-size:16px;font-weight:700;}
.modal-close{font-size:22px;color:var(--mut);line-height:1;}
.modal-close:hover{color:var(--danger);}
.modal-body{padding:18px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--line);}
.field-row{display:flex;flex-direction:column;gap:5px;}
.field-row label{font-size:12.5px;color:var(--mut);}
.field-row input,.field-row textarea,.field-row select{padding:9px 12px;border:1px solid var(--line);border-radius:9px;outline:none;width:100%;}
.field-row input:focus,.field-row textarea:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(47,110,193,.12);}
.field-row textarea{min-height:64px;resize:vertical;}
.field-hint{font-size:11.5px;color:var(--mut);}
.form-err{color:var(--danger);font-size:12.5px;min-height:16px;}

/* Toast */
.toast{position:fixed;top:22px;left:50%;transform:translateX(-50%) translateY(-80px);background:var(--ink);color:#fff;padding:10px 22px;border-radius:999px;font-size:13.5px;opacity:0;transition:all .3s;z-index:300;pointer-events:none;box-shadow:0 10px 30px -10px rgba(0,0,0,.4);}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.toast.ok{background:var(--ok);}
.toast.err{background:var(--danger);}

@media (max-width:860px){
  .layout{flex-direction:column;}
  .sidebar{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;align-items:center;}
  .side-nav{flex-direction:row;flex-wrap:wrap;padding:8px;}
  .side-item{font-size:13px;padding:7px 11px;}
  .side-foot{display:none;}
  .content{padding:18px 14px 50px;}
}