:root{
  --navy:#1f4e78;--navy2:#153a5b;--blue:#2f80ed;--bg:#f3f6fa;--card:#fff;--text:#1f2937;--muted:#718096;--line:#e4eaf1;
  --green:#16a34a;--green-bg:#e8f7ee;--red:#dc2626;--red-bg:#feecec;--amber:#d97706;--amber-bg:#fff6e6;--violet:#7c3aed;--violet-bg:#f2ebff;
  --shadow:0 8px 26px rgba(25,50,80,.08);--radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif}
body{font-size:14px}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.muted{color:var(--muted)}
.error-text{color:var(--red);min-height:20px;margin-top:8px;font-size:13px}

/* login */
.login-view{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:
linear-gradient(140deg,rgba(31,78,120,.96),rgba(24,97,147,.92)),radial-gradient(circle at 20% 20%,#8dc9ff 0,transparent 36%),#163a5c}
.login-card{width:min(430px,100%);background:white;border-radius:24px;padding:34px;box-shadow:0 28px 80px rgba(0,0,0,.25)}
.brand-mark{width:58px;height:58px;border-radius:18px;background:linear-gradient(145deg,var(--navy),#3b8fd4);color:white;display:grid;place-items:center;font-size:30px;font-weight:800;margin-bottom:18px}
.login-card h1{margin:0 0 8px;font-size:28px}
.login-form{display:grid;gap:16px;margin-top:26px}
label{display:grid;gap:7px;font-weight:600;color:#334155}
input,select,textarea{width:100%;border:1px solid #d8e0ea;border-radius:11px;padding:11px 12px;background:white;outline:none;transition:.2s}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,128,237,.12)}
button{border:0;border-radius:11px;padding:10px 14px;background:#edf2f7;color:#1e293b;font-weight:700}
button:hover{filter:brightness(.98)}
button.primary{background:var(--navy);color:white}
button.primary:hover{background:var(--navy2)}
button.big{padding:14px}
button.ghost{background:transparent;color:var(--navy);border:1px solid #cbd8e6}
button.small{padding:7px 10px;border-radius:9px;font-size:12px}
.demo-users{margin-top:22px;color:var(--muted);font-size:12px;line-height:1.8;border-top:1px solid var(--line);padding-top:14px}
.demo-users summary{cursor:pointer;font-weight:700;color:var(--navy)}

/* shell */
.app-view{display:flex;min-height:100vh}
.sidebar{width:236px;background:linear-gradient(180deg,#163c5f,#1f4e78);color:white;padding:20px 15px;position:fixed;inset:0 auto 0 0;z-index:40;display:flex;flex-direction:column}
.sidebar-brand{display:flex;gap:11px;align-items:center;padding:0 7px 20px;border-bottom:1px solid rgba(255,255,255,.13)}
.sidebar-brand>span{width:40px;height:40px;border-radius:13px;background:white;color:var(--navy);display:grid;place-items:center;font-size:22px;font-weight:900}
.sidebar-brand b{display:block;font-size:18px}.sidebar-brand small{color:rgba(255,255,255,.68)}
nav{display:grid;gap:5px;margin-top:16px;overflow:auto;flex:1}
.nav-item{background:transparent;color:rgba(255,255,255,.82);display:flex;gap:10px;align-items:center;text-align:left;padding:11px 12px}
.nav-item i{font-style:normal;width:22px;text-align:center;filter:grayscale(.15)}
.nav-item.active,.nav-item:hover{background:rgba(255,255,255,.13);color:white}
.sidebar-foot{border-top:1px solid rgba(255,255,255,.13);padding-top:14px}
#user-chip{font-size:12px;line-height:1.6;color:rgba(255,255,255,.85);margin-bottom:8px}
.main{margin-left:236px;width:calc(100% - 236px);min-height:100vh}
.topbar{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:17px 28px;display:flex;align-items:center;justify-content:space-between;gap:18px;position:sticky;top:0;z-index:30}
.topbar h2{margin:0 0 3px;font-size:22px}
.top-actions{display:flex;align-items:center;gap:10px}
.chip{display:inline-flex;align-items:center;border-radius:999px;background:#edf4fa;color:var(--navy);padding:7px 11px;font-size:12px;font-weight:700}
.content{padding:24px 28px 40px}
.mobile-only{display:none}

/* cards */
.grid{display:grid;gap:16px}
.grid.metrics{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid.two{grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr)}
.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--card);border:1px solid rgba(225,232,241,.9);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.card h3{margin:0 0 14px;font-size:16px}
.metric-card{position:relative;overflow:hidden}
.metric-card::after{content:"";position:absolute;right:-25px;top:-25px;width:90px;height:90px;border-radius:50%;background:rgba(47,128,237,.06)}
.metric-label{color:var(--muted);font-weight:700;font-size:13px}
.metric-value{font-size:28px;font-weight:900;letter-spacing:-1px;margin:9px 0 5px;color:var(--navy)}
.metric-note{font-size:12px;color:var(--muted)}
.metric-card.red .metric-value{color:var(--red)}.metric-card.green .metric-value{color:var(--green)}.metric-card.amber .metric-value{color:var(--amber)}.metric-card.violet .metric-value{color:var(--violet)}

/* quick */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.quick-btn{text-align:left;background:linear-gradient(135deg,#fff,#f5f9fd);border:1px solid var(--line);padding:18px;border-radius:16px;box-shadow:0 5px 15px rgba(25,50,80,.04)}
.quick-btn:hover{border-color:#b9d2ea;transform:translateY(-1px)}
.quick-btn .q-icon{font-size:24px;display:block;margin-bottom:10px}
.quick-btn b{display:block;font-size:16px;color:var(--navy);margin-bottom:5px}
.quick-btn small{color:var(--muted);line-height:1.5}

/* table */
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:14px}
.search{max-width:320px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:white}
table{border-collapse:collapse;width:100%;min-width:760px}
th,td{padding:11px 12px;border-bottom:1px solid #edf1f6;text-align:left;vertical-align:top}
th{background:#f7fafc;color:#526070;font-size:12px;position:sticky;top:0;z-index:1}
tr:hover td{background:#fbfdff}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.empty-state{padding:48px 20px;text-align:center;color:var(--muted)}
.badge{display:inline-flex;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:800;background:#eef2f7;color:#475569}
.badge.green{background:var(--green-bg);color:var(--green)}.badge.red{background:var(--red-bg);color:var(--red)}.badge.amber{background:var(--amber-bg);color:var(--amber)}.badge.violet{background:var(--violet-bg);color:var(--violet)}

/* forms */
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.form-grid .full{grid-column:1/-1}
.help-box{background:#f4f8fc;border:1px solid #dbe8f4;border-radius:13px;padding:12px 14px;color:#496076;line-height:1.7;margin-bottom:16px}
.warning-box{background:#fff8e8;border:1px solid #f4d9a6;border-radius:13px;padding:12px 14px;color:#8a5a10;line-height:1.7;margin-bottom:16px}
.summary-list{display:grid;gap:10px}
.summary-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line)}
.summary-row:last-child{border-bottom:0}
.summary-row b{font-size:18px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(15,35,55,.48);display:grid;place-items:center;z-index:100;padding:18px}
.modal-box{background:white;border-radius:20px;width:min(760px,100%);max-height:92vh;display:flex;flex-direction:column;box-shadow:0 30px 90px rgba(0,0,0,.25)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0}
.modal-body{padding:20px;overflow:auto}
.modal-foot{border-top:1px solid var(--line);padding:14px 20px;display:flex;justify-content:flex-end;gap:10px}
.icon-btn{padding:4px 9px;font-size:21px;background:#f0f4f8}

/* toast */
.toast{position:fixed;right:24px;bottom:24px;background:#163c5f;color:white;padding:12px 16px;border-radius:12px;z-index:200;box-shadow:0 12px 30px rgba(0,0,0,.2)}

.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:35}
.kpi-line{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
.tiny{font-size:12px}
.right{text-align:right}
.strong{font-weight:800}.danger{color:var(--red)}.success{color:var(--green)}
.progress{height:8px;background:#edf2f7;border-radius:99px;overflow:hidden}
.progress>span{display:block;height:100%;background:var(--blue)}
.mobile-nav-title{display:none}

@media(max-width:1100px){
  .grid.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid.two,.grid.three{grid-template-columns:1fr}
}
@media(max-width:760px){
  .mobile-only{display:inline-flex}.desktop-only{display:none}
  .sidebar{transform:translateX(-105%);transition:.25s;width:250px}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;width:100%}
  .topbar{padding:14px 15px}.topbar h2{font-size:18px}.top-actions .chip{display:none}.top-actions .primary{padding:9px 10px;font-size:12px}
  .content{padding:16px 14px 30px}
  .grid.metrics,.quick-grid,.form-grid{grid-template-columns:1fr}
  .metric-value{font-size:24px}
  .card{padding:15px;border-radius:14px}
  .modal{padding:8px}.modal-box{max-height:96vh;border-radius:16px}
  th,td{padding:10px 9px}
  table{min-width:700px}
  .mobile-nav-title{display:block}
}