:root{
  --bg:#0b1220;--bg2:#0f172a;--card:#131d33;--card2:#0f1a2e;
  --border:#1e293b;--txt:#e2e8f0;--txt2:#94a3b8;--txt3:#64748b;
  --blue:#38bdf8;--green:#34d399;--yellow:#fbbf24;--red:#fb7185;--orange:#f97316;--purple:#a78bfa;
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:linear-gradient(180deg,#0b1220 0%,#0e1526 100%);color:var(--txt);font:14px/1.6 "Microsoft YaHei","PingFang SC",system-ui,sans-serif;min-height:100vh}
.app{display:flex;min-height:100vh;align-items:stretch}

/* ---- 左侧导航栏 ---- */
.sidebar{width:228px;flex:none;background:rgba(11,18,32,.92);border-right:1px solid var(--border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;z-index:20}
.sidebar .brand{display:flex;gap:10px;align-items:center;padding:16px 14px;border-bottom:1px solid var(--border)}
.logo{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#0ea5e9,#34d399);display:flex;align-items:center;justify-content:center;font-weight:800;color:#06202e;font-size:16px;flex:none}
.sidebar h1{font-size:16px;font-weight:700;line-height:1.3}
.sidebar .nav{display:flex;flex-direction:column;gap:3px;padding:12px 10px;flex:1;overflow-y:auto;position:static;top:auto;background:transparent;border:none;z-index:auto}
.sidebar .nav-btn{text-align:left;padding:9px 12px;border-radius:8px;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-foot{padding:10px 14px;color:var(--txt3);font-size:11px;border-top:1px solid var(--border);text-align:center}

/* ---- 主区域 ---- */
.main-area{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;background:rgba(15,23,42,.85);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10;backdrop-filter:blur(6px)}
.tb-left{font-size:13px;color:var(--txt2)}
.tb-left b{color:#7dd3fc}
.tb-right{display:flex;gap:10px;align-items:center}
.clock{color:var(--txt2);font-variant-numeric:tabular-nums;font-size:13px}
main{padding:18px 20px 30px;max-width:1500px;margin:0 auto;width:100%;flex:1}
.page{display:none}
.page.active{display:block}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin-bottom:16px;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.card h3{font-size:15px;font-weight:600;margin-bottom:12px;color:#cfe3f5;border-left:3px solid var(--blue);padding-left:10px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:12px 0}
@media(max-width:1100px){.grid-2,.grid-3{grid-template-columns:1fr}}
.chart{width:100%;height:330px}
.chart.tall{height:460px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:16px}
@media(max-width:1100px){.kpi-grid{grid-template-columns:repeat(2,1fr)}}
.kpi{background:linear-gradient(145deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:12px;padding:16px 18px}
.kpi-title{color:var(--txt2);font-size:13px;margin-bottom:6px}
.kpi-val{font-size:28px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.kpi-unit{font-size:13px;color:var(--txt3);margin-left:6px;font-weight:400}
.kpi-sub{margin-top:6px;font-size:12px;color:var(--txt2)}
.kpi-sub.down{color:var(--green)} .kpi-sub.up{color:var(--red)}
.kpi-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:14px 0}
@media(max-width:1100px){.kpi-row{grid-template-columns:repeat(2,1fr)}}
.mini-kpi{background:var(--card2);border:1px solid var(--border);border-radius:10px;padding:10px 12px}
.mini-kpi span{display:block;color:var(--txt3);font-size:12px}
.mini-kpi b{font-size:18px;color:#e8f1fa}
.mini-kpi i{display:block;font-style:normal;color:var(--txt2);font-size:11px;margin-top:2px}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:8px 10px;text-align:right;border-bottom:1px solid var(--border);white-space:nowrap}
th:first-child,td:first-child,th:nth-child(2),td:nth-child(2){text-align:left}
th{color:var(--txt2);font-weight:600;background:rgba(30,41,59,.5)}
tbody tr:hover{background:rgba(56,189,248,.05)}
tbody tr.trow{cursor:pointer}
tfoot td{font-weight:700;color:#a5f3fc;background:rgba(30,41,59,.6)}
.table-wrap{overflow-x:auto;border-radius:8px;border:1px solid var(--border)}
.toolbar{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.toolbar label{color:var(--txt2);font-size:13px;display:flex;gap:8px;align-items:center}
select,.inp{background:#0b1526;border:1px solid var(--border);color:var(--txt);padding:6px 10px;border-radius:8px;font-size:13px;outline:none}
select:focus,.inp:focus{border-color:var(--blue)}
.btn{background:linear-gradient(135deg,#0ea5e9,#0891b2);border:none;color:#fff;padding:8px 18px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600}
.btn:hover{filter:brightness(1.15)}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--txt2)}
.muted{color:var(--txt3);font-size:12px;margin-top:8px;line-height:1.7}
.badge{padding:2px 10px;border-radius:20px;font-size:12px}
.badge.ok{background:rgba(52,211,153,.15);color:#6ee7b7}
.badge.warn{background:rgba(251,191,36,.15);color:#fcd34d}
.badge.bad{background:rgba(251,113,133,.15);color:#fda4af}
.alert-list{display:flex;flex-direction:column;gap:8px;max-height:420px;overflow:auto}
.alert{padding:10px 12px;border-radius:8px;font-size:13px;line-height:1.7;border-left:3px solid}
.alert.red{background:rgba(251,113,133,.08);border-color:var(--red);color:#fecdd3}
.alert.orange{background:rgba(249,115,22,.08);border-color:var(--orange);color:#fed7aa}
.alert.green{background:rgba(52,211,153,.08);border-color:var(--green);color:#a7f3d0}
.alert b{margin-right:4px}
.live-box{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}
.live-box.wide{grid-template-columns:repeat(4,1fr)}
.live-item{background:var(--card2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;display:flex;flex-direction:column}
.live-item span{color:var(--txt3);font-size:12px}
.live-item b{font-size:22px;color:#7dd3fc;font-variant-numeric:tabular-nums}
.live-item i{font-style:normal;color:var(--txt3);font-size:11px}
.strategy-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:1100px){.strategy-grid{grid-template-columns:1fr}}
.strategy{background:var(--card2);border:1px solid var(--border);border-radius:10px;padding:14px;font-size:13px;line-height:1.8;color:#cbd5e1}
.s-head{display:flex;gap:10px;align-items:center;margin-bottom:6px}
.s-head b{color:#e8f1fa;font-size:14px}
.s-tag{font-size:11px;padding:2px 10px;border-radius:20px}
.s-tag.lv-高{background:rgba(251,113,133,.15);color:#fda4af}
.s-tag.lv-中{background:rgba(251,191,36,.15);color:#fcd34d}
.foot{text-align:center;color:var(--txt3);font-size:12px;padding:14px;border-top:1px solid var(--border)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#233247;border-radius:4px}

/* ---- 弹窗 ---- */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:24px}
.modal-mask{position:absolute;inset:0;background:rgba(2,6,23,.72)}
.modal-box{position:relative;width:100%;max-width:780px;max-height:82vh;overflow:auto;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px 22px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.modal-head b{font-size:16px;color:#cfe3f5}
.modal-x{background:transparent;border:1px solid var(--border);color:var(--txt2);border-radius:6px;width:28px;height:28px;cursor:pointer;font-size:14px}
.modal-x:hover{color:#fff;border-color:var(--red)}
.modal-body{color:var(--txt2);font-size:13px;line-height:1.8}
.modal-body table.plain{width:100%;border-collapse:collapse;margin:8px 0;color:#cbd5e1}
.modal-body table.plain th,.modal-body table.plain td{border:1px solid var(--border);padding:6px 8px;font-size:12px;text-align:left}
.modal-body ul{padding-left:20px}

/* ---- 表单 ---- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:900px){.form-grid{grid-template-columns:1fr}}
.form-grid label{display:flex;flex-direction:column;gap:5px;color:var(--txt2);font-size:12px}
.form-btn{align-self:end}
.btn.sm{padding:3px 10px;font-size:12px}
code{background:#0b1526;padding:1px 6px;border-radius:4px;color:#7dd3fc;font-size:12px}

/* ---- 碳标识 ---- */
.cf-badge{display:flex;gap:20px;align-items:center;background:linear-gradient(135deg,#064e3b,#0f766e);border:1px solid #10b981;border-radius:14px;padding:20px;color:#d1fae5}
.cf-ring{width:118px;height:118px;border-radius:50%;border:8px solid #34d399;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#022c22;flex:none}
.cf-ring b{font-size:24px;color:#fff}
.cf-ring span{font-size:11px;color:#a7f3d0}
.cf-info h4{font-size:16px;margin-bottom:6px;color:#fff}
.cf-info p{font-size:12px;color:#a7f3d0;margin:2px 0}
@media(max-width:700px){.cf-badge{flex-direction:column}}

/* ---- 登录与权限 ---- */
.login-form{display:flex;flex-direction:column;gap:12px;padding:6px 0}
.login-form label{display:flex;flex-direction:column;gap:5px;color:var(--txt2);font-size:12px}
button:disabled{opacity:.45;cursor:not-allowed;filter:grayscale(.3)}
body.readonly [data-write]{opacity:.5}
.ro-banner{display:flex;align-items:center;gap:8px;background:rgba(251,191,36,.1);border:1px solid rgba(251,191,36,.35);color:#fcd34d;border-radius:10px;padding:9px 14px;font-size:13px;margin-bottom:14px}
.tb-user{display:inline-flex;align-items:center;gap:6px}
.tb-user .dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.tb-user .dot.admin{background:var(--green)}
.tb-user .dot.user{background:var(--blue)}
.btn.danger{color:#fda4af;border-color:rgba(251,113,133,.4)}
.btn.danger:hover{border-color:var(--red);background:rgba(251,113,133,.1)}

/* ---- 基础数据表 ---- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.tab{background:transparent;border:1px solid var(--border);color:var(--txt2);padding:7px 16px;border-radius:8px;cursor:pointer;font-size:13px;transition:.15s}
.tab:hover{color:var(--txt);background:rgba(56,189,248,.08)}
.tab.active{background:linear-gradient(135deg,rgba(14,165,233,.22),rgba(52,211,153,.18));color:#7dd3fc;border-color:rgba(56,189,248,.4)}
.td-id{color:#64748b;font-size:12px;font-variant-numeric:tabular-nums}
.ops{white-space:nowrap}
.ops .btn{margin-right:6px}
#bt-body .table-wrap{margin-top:4px}
#bt-body .form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
#bt-body .form-grid label{display:flex;flex-direction:column;gap:6px;color:var(--txt2);font-size:13px}

/* ---- 窄屏适配 ---- */
@media(max-width:900px){
  .app{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;border-right:none;border-bottom:1px solid var(--border)}
  .sidebar .brand{padding:12px 14px}
  .sidebar .nav{flex-direction:row;flex-wrap:wrap;padding:8px 10px}
  .sidebar .nav-btn{padding:6px 12px;font-size:13px}
  .side-foot{display:none}
}

/* ============================================================
 * V3 云端版 · 全屏登录门禁
 * ============================================================ */
.login-gate{position:fixed;inset:0;z-index:200;background:linear-gradient(160deg,#0b1220 0%,#0d1a33 55%,#0b1220 100%);display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:380px;max-width:100%;background:rgba(19,29,51,.92);border:1px solid var(--border);border-radius:16px;padding:30px 34px;text-align:center;box-shadow:0 24px 70px rgba(0,0,0,.55)}
.login-card .logo{margin:0 auto 14px}
.login-card h1{font-size:20px;color:#cfe3f5;margin-bottom:4px;letter-spacing:1px}
.login-card h2{font-size:12.5px;color:var(--txt2);font-weight:600;margin-bottom:6px}
.login-card label{display:block;text-align:left;color:var(--txt2);font-size:12.5px;margin:14px 0 5px;display:flex;flex-direction:column;gap:6px}
.login-card input{width:100%;background:#0b1526;border:1px solid var(--border);color:var(--txt);padding:10px 13px;border-radius:9px;font-size:14px;outline:none;box-sizing:border-box}
.login-card input:focus{border-color:var(--blue)}
.login-card .btn{width:100%;margin-top:20px;padding:11px}
.login-card .err{color:#fda4af;font-size:12.5px;min-height:20px;margin-top:12px;word-break:break-all}
.login-card .muted{line-height:1.8}
.login-card.loading .btn{opacity:.6;pointer-events:none}

/* ---- 系统设置页 ---- */
.user-add-bar{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:12px;align-items:end}
.user-add-bar label{display:flex;flex-direction:column;gap:5px;color:var(--txt2);font-size:12.5px}
@media(max-width:900px){.user-add-bar{grid-template-columns:1fr}}
.role-chip{display:inline-flex;align-items:center;gap:6px}
.role-chip i{width:8px;height:8px;border-radius:50%;display:inline-block;font-style:normal}
.role-chip i.adm{background:var(--green)}
.role-chip i.usr{background:var(--blue)}
@media(max-width:900px){
  .login-card{padding:26px 22px}
}