/* ============ 黑白极简 · 扁平化 ============ */
:root{
  --bg:#ffffff; --fg:#111111; --muted:#8a8a8a; --line:#e6e6e6;
  --soft:#f5f5f5; --soft2:#fafafa; --black:#111111; --white:#ffffff;
  --sb-w:64px; --sb-w-open:208px; --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--fg); font-size:14px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px;color:var(--fg)}

/* ---------- 侧边导航（隐藏式） ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sb-w);
  background:var(--black);color:#fff;z-index:50;overflow:hidden;
  display:flex;flex-direction:column;
  transition:width .22s ease;
}
.sidebar:hover,.sidebar.pinned{width:var(--sb-w-open)}
.sb-text{opacity:0;white-space:nowrap;transition:opacity .18s ease}
.sidebar:hover .sb-text,.sidebar.pinned .sb-text{opacity:1}
.sb-logo{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid rgba(255,255,255,.12)}
.logo-mark{width:32px;height:32px;min-width:32px;background:#fff;color:#111;font-weight:700;
  display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:16px}
.logo-name{font-weight:600;font-size:15px;flex:1}
.pin-btn{background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:6px;
  width:24px;height:24px;font-size:12px;line-height:1}
.sb-nav{flex:1;padding:12px 8px;display:flex;flex-direction:column;gap:4px}
.sb-nav a{
  display:flex;align-items:center;gap:14px;padding:11px 12px;border-radius:8px;
  color:rgba(255,255,255,.72);font-size:14px;
}
.sb-nav a:hover{background:rgba(255,255,255,.1);color:#fff}
.sb-nav a.active{background:#fff;color:#111;font-weight:600}
.nv-ic{width:24px;min-width:24px;text-align:center;font-size:16px;font-style:normal}
.sb-foot{padding:14px 12px;border-top:1px solid rgba(255,255,255,.12)}
.sb-foot .btn{width:100%;border-color:rgba(255,255,255,.35);color:#fff;background:none}

/* ---------- 主区域 ---------- */
.main{margin-left:var(--sb-w);min-height:100vh;transition:margin-left .22s ease}
.sidebar.pinned~.main{margin-left:var(--sb-w-open)}
.topbar{
  height:56px;display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#fff;z-index:10;
}
.tb-title{font-size:16px;font-weight:700}
.tb-date{color:var(--muted);font-size:13px}
.view{padding:20px 24px 40px;max-width:1400px}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  background:var(--black);color:#fff;border:1px solid var(--black);
  border-radius:8px;padding:8px 16px;font-size:13px;
}
.btn:hover{opacity:.82}
.btn.ghost{background:none;color:var(--fg);border-color:#c9c9c9}
.btn.ghost:hover{border-color:#111;opacity:1}
.btn.small{padding:4px 10px;font-size:12px;border-radius:6px}
.btn.danger{background:#fff;color:#111;border:1px solid #111}
.btn:disabled{opacity:.35;cursor:not-allowed}
.input,select.input,textarea.input{
  width:100%;border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:#fff;outline:none;
}
.input:focus{border-color:#111}
.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:16px}
.grid{display:grid;gap:14px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.sec-title{font-size:15px;font-weight:700;margin:22px 0 10px;display:flex;align-items:center;justify-content:space-between}
.sec-title:first-child{margin-top:0}
.muted{color:var(--muted);font-size:12px}
.mono{font-variant-numeric:tabular-nums}

/* 设置页 */
.set-block{border:1px solid var(--line);border-radius:var(--radius);padding:6px 16px;background:#fff;margin-top:16px}
.set-block:first-child{margin-top:0}
.set-grp{font-size:12px;color:var(--muted);letter-spacing:2px;padding:12px 0 4px}
.set-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;border-top:1px solid var(--soft)}
.set-row:first-of-type{border-top:none}
.set-row>div{flex:1;min-width:0}

/* 表格 */
.tbl-wrap{border:1px solid var(--line);border-radius:var(--radius);overflow:auto;background:#fff}
table{width:100%;border-collapse:collapse;font-size:13px;min-width:640px}
th{background:var(--soft);text-align:left;padding:10px 12px;font-weight:600;white-space:nowrap;border-bottom:1px solid var(--line)}
td{padding:10px 12px;border-bottom:1px solid #f0f0f0;white-space:nowrap;vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:var(--soft2)}

/* 徽标 */
.tag{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;border:1px solid #ddd;background:#fff}
.tag.dark{background:#111;color:#fff;border-color:#111}
.tag.gray{background:var(--soft);border-color:var(--soft)}
.tag.line{border-color:#111}
.tag.warn{border-color:#111;background:#111;color:#fff}

/* 指标卡 */
.kpi{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;background:#fff}
.kpi .k-label{font-size:12px;color:var(--muted)}
.kpi .k-val{font-size:26px;font-weight:800;margin:6px 0 8px;font-variant-numeric:tabular-nums}
.kpi .k-sub{font-size:12px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}
.kpi .up::before{content:"▲ ";font-size:10px}
.kpi .down::before{content:"▼ ";font-size:10px}
.kpi .up{color:#111;font-weight:600}
.kpi .down{color:#999}

/* 预警滚动区 */
.alert-box{height:180px;overflow:hidden;position:relative}
.alert-scroll{display:flex;flex-direction:column;gap:8px;animation:scrollUp 14s linear infinite}
.alert-box:hover .alert-scroll{animation-play-state:paused}
@keyframes scrollUp{0%{transform:translateY(0)}100%{transform:translateY(-50%)}}
.alert-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border:1px solid var(--line);border-radius:8px;font-size:13px}
.alert-item b{font-weight:600}
.alert-dot{width:7px;height:7px;border-radius:50%;background:#111;min-width:7px}

/* 排行条 */
.rank-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.rank-idx{width:20px;height:20px;min-width:20px;border-radius:5px;background:var(--soft);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.rank-idx.top{background:#111;color:#fff}
.rank-name{width:150px;min-width:110px;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-bar-wrap{flex:1;height:8px;background:var(--soft);border-radius:99px;overflow:hidden}
.rank-bar{height:100%;background:#111;border-radius:99px}
.rank-val{width:80px;text-align:right;font-size:12px;color:var(--muted)}

/* 快捷入口 */
.quick{display:flex;gap:12px;flex-wrap:wrap}
.quick .qk{
  flex:1;min-width:150px;border:1px dashed #bbb;border-radius:var(--radius);padding:18px;
  text-align:center;background:#fff;font-size:14px;font-weight:600;
}
.quick .qk:hover{border-color:#111;border-style:solid}
.quick .qk i{display:block;font-style:normal;font-size:22px;margin-bottom:6px}

/* Tab */
.tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.tabs .tab{padding:7px 16px;border-radius:99px;border:1px solid var(--line);background:#fff;font-size:13px}
.tabs .tab.on{background:#111;color:#fff;border-color:#111}

/* 工具行 */
.toolbar{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap;align-items:center}
.toolbar .input{width:auto;min-width:140px}
.toolbar .grow{flex:1}

/* 流程状态 */
.flow{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.flow b{color:#111}

/* 弹窗 */
.modal-mask{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:100;display:none;align-items:flex-start;justify-content:center;padding:5vh 16px;overflow:auto}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:14px;width:640px;max-width:100%;max-height:88vh;display:flex;flex-direction:column}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);font-weight:700;font-size:15px}
.modal-head .x{background:none;border:none;font-size:16px}
.modal-body{padding:18px 20px;overflow:auto}
.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:12px}
.form-row.c3{grid-template-columns:repeat(3,1fr)}
.form-row.c1{grid-template-columns:1fr}
.fld label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:16px}

/* Toast */
.toast{
  position:fixed;top:20px;left:50%;transform:translateX(-50%) translateY(-80px);
  background:#111;color:#fff;padding:10px 22px;border-radius:99px;font-size:13px;z-index:200;
  transition:transform .25s ease;pointer-events:none;max-width:90vw;
}
.toast.show{transform:translateX(-50%) translateY(0)}

/* 图表 */
.chart-box svg{width:100%;height:auto;display:block}

/* 购物车 */
.cart-item{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid #f0f0f0}
.cart-item:last-child{border-bottom:none}
.qty-ctl{display:flex;align-items:center;gap:6px}
.qty-ctl button{width:26px;height:26px;border:1px solid var(--line);background:#fff;border-radius:6px;font-size:14px}
.search-drop{border:1px solid var(--line);border-radius:10px;margin-top:6px;overflow:hidden;background:#fff}
.search-drop .sd-item{display:flex;justify-content:space-between;padding:10px 12px;border-bottom:1px solid #f2f2f2;cursor:pointer;font-size:13px}
.search-drop .sd-item:hover{background:var(--soft)}
.search-drop .sd-item:last-child{border-bottom:none}

/* 移动端左侧隐藏抽屉导航 */
.nav-toggle{
  display:none;position:fixed;top:9px;left:10px;z-index:70;
  width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:9px;
  font-size:18px;line-height:1;color:#111;cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,.08);
}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:80}
.nav-mask.show{display:block}
.m-drawer{
  display:none;position:fixed;top:0;left:0;bottom:0;width:80%;max-width:300px;z-index:90;
  background:#111;color:#fff;flex-direction:column;transform:translateX(-100%);
  transition:transform .25s ease;padding:16px 14px;box-sizing:border-box;
}
.m-drawer.open{transform:translateX(0)}
.m-drawer-head{
  display:flex;align-items:center;gap:10px;padding:6px 4px 14px;
  border-bottom:1px solid rgba(255,255,255,.16);font-weight:700;font-size:15px;
}
.m-drawer-head .logo-mark{
  width:26px;height:26px;border-radius:6px;background:#fff;color:#111;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
}
.m-drawer-head .x{margin-left:auto;background:none;border:none;color:#fff;font-size:17px;cursor:pointer}
.m-nav{display:flex;flex-direction:column;gap:3px;margin-top:12px;overflow:auto}
.m-nav a{
  display:flex;align-items:center;gap:13px;padding:14px 13px;border-radius:10px;
  color:rgba(255,255,255,.68);font-size:14px;text-decoration:none;
}
.m-nav a .nv-ic{font-size:16px;width:20px;text-align:center;font-style:normal}
.m-nav a.active{background:rgba(255,255,255,.14);color:#fff}
.m-drawer-foot{margin-top:auto;padding-top:14px;border-top:1px solid rgba(255,255,255,.16)}
.m-drawer-foot .btn{color:#fff;border-color:rgba(255,255,255,.4);width:100%}

/* ---------- 移动端适配 ---------- */
@media (max-width:860px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .sidebar{display:none}
  .main{margin-left:0}
  .nav-toggle{display:block}
  .m-drawer{display:flex}
  .bottombar{display:none}
  .view{padding:14px 14px 80px}
  .topbar{padding:0 14px 0 56px}
  .g4,.g3,.g2{grid-template-columns:repeat(2,1fr)}
  .kpi .k-val{font-size:20px}
  .form-row,.form-row.c3{grid-template-columns:1fr}
  .modal-mask{padding:0}
  .modal{width:100%;max-height:100vh;height:100%;border-radius:0}
  .rank-name{width:110px}
  table{min-width:560px}
}
@media (max-width:420px){
  .g4{grid-template-columns:1fr 1fr}
}

/* ---------- 锁屏遮罩 ---------- */
.lock-mask{
  position:fixed; inset:0; z-index:9999;
  display:flex; align-items:center; justify-content:center;
  background:rgba(17,17,17,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:opacity .18s ease;
}
.lock-mask.hidden{ display:none; }
.lock-box{
  width:340px; max-width:92vw;
  background:#fff; border-radius:14px;
  padding:32px 28px 24px;
  box-shadow:0 20px 60px rgba(0,0,0,.4);
  text-align:center;
}
.lock-logo{
  width:56px; height:56px; border-radius:14px;
  background:var(--black); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-size:26px; font-weight:700;
  margin:0 auto 14px;
}
.lock-box h2{ font-size:18px; font-weight:600; margin-bottom:6px; }
.lock-box form{ margin-top:18px; }
.lock-box input[type=password]{
  width:100%; height:42px;
  border:1px solid var(--line); border-radius:8px;
  padding:0 14px; outline:none;
  font-size:15px; letter-spacing:2px;
  text-align:center;
  transition:border-color .15s;
}
.lock-box input[type=password]:focus{ border-color:var(--black); }
.lock-box .btn{ margin-top:12px; height:42px; font-size:14px; }
.lock-err{
  min-height:20px; margin-top:12px;
  font-size:13px; color:#d32f2f;
}
.lock-hint{ margin-top:14px; font-size:12px; line-height:1.6; }

/* ---------- 顶栏"锁定"按钮 ---------- */
.lock-btn{
  margin-left:12px;
  height:30px; padding:0 12px;
  background:#fff; color:var(--fg);
  border:1px solid var(--line); border-radius:6px;
  font-size:12px; cursor:pointer;
  transition:all .15s;
}
.lock-btn:hover{ background:var(--black); color:#fff; border-color:var(--black); }
@media (max-width:768px){
  .lock-btn{ padding:0 8px; font-size:11px; margin-left:8px; }
}