:root{
  --bg:#f3f5f9; --card:#fff; --line:#e6e9f0; --txt:#1f2937; --muted:#7a8699;
  --primary:#3b5bdb; --primary-d:#2f49c0; --danger:#e5484d; --ok:#2f9e6e; --warn:#d99a2b;
  --radius:10px; --shadow:0 1px 3px rgba(20,30,60,.08);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);font-size:14px}
a{color:var(--primary);text-decoration:none}

/* 布局 */
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:#171f33;color:#cbd3e1;padding:18px 0;display:flex;flex-direction:column;flex-shrink:0}
.brand{font-size:17px;font-weight:700;color:#fff;padding:0 20px 16px}
.sidebar nav{flex:1;padding:0 10px}
.sidebar nav a{display:block;padding:10px 14px;border-radius:8px;color:#cbd3e1;margin-bottom:2px}
.sidebar nav a:hover{background:#232d49;color:#fff}
.sidebar nav a.active{background:var(--primary);color:#fff}
.nav-sep{margin:16px 4px 6px;font-size:12px;color:#6b7790;letter-spacing:1px}
.sidebar-user{padding:14px 20px;border-top:1px solid #2a3450;font-size:13px}
.sidebar-user a{color:#9fb0d6}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:14px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.page-title{font-size:18px;font-weight:700}
.store-switch{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{padding:5px 12px;border:1px solid var(--line);border-radius:20px;font-size:13px;color:var(--txt)}
.chip:hover{border-color:var(--primary);color:var(--primary)}
.chip.on{background:var(--primary);border-color:var(--primary);color:#fff}
.content{padding:24px}

/* 卡片与指标 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:20px}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.card-head h3,.card h3{margin:0 0 12px;font-size:16px}
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px}
.metric{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.metric .k{color:var(--muted);font-size:13px;margin-bottom:8px}
.metric .v{font-size:20px;font-weight:700}
.metric-hl{border-color:var(--primary);background:#eef1fe}
.metric-hl .v{color:var(--primary)}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;white-space:nowrap}
.tbl th{color:var(--muted);font-weight:600;background:#fafbfd}
.tbl td{overflow:hidden;text-overflow:ellipsis;max-width:220px}
.tbl tr:hover td{background:#f8faff}
.empty{text-align:center;color:var(--muted);padding:30px!important}
.op{display:flex;gap:6px;align-items:center;white-space:nowrap}
.op form{margin:0}
.hl{color:var(--primary);font-weight:700}
.red{color:var(--danger)}
.muted{color:var(--muted)}

/* 按钮 */
.btn{display:inline-block;padding:7px 14px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--txt);cursor:pointer;font-size:13.5px;transition:.15s}
.btn:hover{border-color:var(--primary);color:var(--primary)}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-d);color:#fff}
.btn-danger{color:var(--danger);border-color:#f3c4c6}
.btn-danger:hover{background:var(--danger);color:#fff}
.btn-sm{padding:4px 9px;font-size:12.5px}
.btn-block{width:100%;padding:10px}

/* 表单 */
.filters{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
label{display:block;margin-bottom:12px;font-size:13.5px;color:#374151}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:13.5px;background:#fff;color:var(--txt);margin-top:5px}
.filters input,.filters select{width:auto;margin-top:0}
input:focus,select:focus{outline:none;border-color:var(--primary)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.chk{display:inline-block;margin-right:12px;font-size:13px}
.chk input{width:auto;margin:0 4px 0 0}

/* 弹窗 */
.modal{display:none;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:100;align-items:flex-start;justify-content:center;padding:60px 16px;overflow:auto}
.modal.show{display:flex}
.modal-box{background:#fff;border-radius:12px;padding:22px;width:100%;max-width:640px;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-box h3{margin:0 0 16px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}

/* 图表条 */
.bars{display:flex;align-items:flex-end;gap:12px;height:220px;padding-top:20px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:flex-end}
.bar-val{font-size:12px;color:var(--muted);margin-bottom:4px}
.bar-track{width:60%;max-width:46px;background:#eef1fa;border-radius:6px 6px 0 0;height:100%;display:flex;align-items:flex-end}
.bar-fill{width:100%;background:var(--primary);border-radius:6px 6px 0 0;min-height:2px}
.bar-date{font-size:12px;color:var(--muted);margin-top:6px}

/* 登录 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#3b5bdb,#171f33)}
.login-card{background:#fff;border-radius:14px;padding:34px;width:360px;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-card h1{font-size:20px;text-align:center;margin:0 0 22px}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px;font-size:13.5px}
.flash-success{background:#e6f6ee;color:#1d7a52;border:1px solid #bfe8d2}
.flash-danger{background:#fdeeee;color:#b3262c;border:1px solid #f6c9cb}
.flash-warning{background:#fdf4e4;color:#96600f;border:1px solid #f3dfb5}

/* 分页/标签 */
.pager{display:flex;gap:6px;margin-top:14px}
.page{min-width:30px;text-align:center;padding:6px 9px;border:1px solid var(--line);border-radius:6px}
.page.on{background:var(--primary);color:#fff;border-color:var(--primary)}
.tabs{display:flex;gap:4px}
.tabs a{padding:7px 14px;border-radius:8px;color:var(--muted)}
.tabs a:hover{color:var(--primary)}
.tabs a.on{background:var(--primary);color:#fff}

/* 导入：判重标记与冲突处理 */
.tag{display:inline-block;background:#eef1fe;color:var(--primary);font-size:11px;padding:2px 7px;border-radius:10px;margin-left:6px;vertical-align:middle}
.dup-group{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:16px}
.dup-head{font-size:15px;margin-bottom:10px;color:#374151}
.dup-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dup-card{border:1px solid var(--line);border-radius:10px;padding:12px}
.dup-src{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.dup-tbl th{width:64px;background:none;font-weight:600}
.dup-tbl th,.dup-tbl td{border-bottom:1px dashed var(--line);padding:6px 8px}
.dup-tbl tr:last-child th,.dup-tbl tr:last-child td{border-bottom:none}
.chk.radio{display:block;margin:10px 0 2px;font-size:14px;font-weight:600}
.chk.skip{margin-top:8px}
.map-file{border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:16px}
.map-preview{margin-top:8px}
.map-preview summary{cursor:pointer;color:var(--primary);font-size:13px;margin-bottom:6px}
.imap-summary{cursor:pointer;font-weight:600;font-size:14.5px;padding:8px 0;color:#374151}
.imap-tbl input{width:100%}
@media (max-width:900px){.dup-cols{grid-template-columns:1fr}}
/* 顶部左侧（汉堡 + 标题） */
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.menu-btn{display:none;background:none;border:none;font-size:22px;line-height:1;cursor:pointer;color:var(--txt);padding:4px 8px;border-radius:8px}
.sidebar-backdrop{display:none}

/* 移动端适配（手机/平板竖屏） */
@media (max-width: 900px){
  body{font-size:15px}
  .layout{display:block}
  .menu-btn{display:inline-block}
  /* 侧边栏 → 左侧抽屉 */
  .sidebar{position:fixed;top:0;left:0;bottom:0;width:78%;max-width:300px;z-index:200;
    transform:translateX(-105%);transition:transform .25s ease;box-shadow:0 0 30px rgba(0,0,0,.3)}
  body.nav-open .sidebar{transform:translateX(0)}
  .sidebar-backdrop{display:block;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:150;opacity:0;visibility:hidden;transition:.25s}
  body.nav-open .sidebar-backdrop{opacity:1;visibility:visible}
  .main{width:100%}
  /* 顶栏 */
  .topbar{flex-wrap:wrap;gap:10px;padding:12px 14px;position:sticky;top:0;z-index:100}
  .page-title{font-size:16px}
  .store-switch{order:3;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap;flex-wrap:nowrap;padding-bottom:2px}
  .store-switch span{flex-shrink:0}
  .content{padding:14px}
  /* 指标卡 2 列 */
  .metrics{grid-template-columns:repeat(2,1fr);gap:10px}
  .metric .v{font-size:18px}
  /* 表格 → 横向滚动 */
  .tbl{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .tbl th,.tbl td{white-space:nowrap;padding:10px}
  .tbl td{max-width:none}
  .card{padding:14px}
  .card-head{flex-wrap:wrap;gap:8px}
  .filters{gap:8px;margin-bottom:12px}
  .filters input,.filters select{flex:1;min-width:0}
  .grid2{grid-template-columns:1fr}
  /* 弹窗 → 底部抽屉 */
  .modal{padding:0;align-items:flex-end}
  .modal-box{max-width:100%;border-radius:16px 16px 0 0;max-height:92vh;overflow:auto;padding:20px 16px 24px}
  /* 触控友好 */
  .btn{min-height:42px;padding:10px 16px;font-size:15px}
  .btn-sm{min-height:34px;padding:6px 10px;font-size:13px}
  input,select{min-height:44px;font-size:16px}
  .tabs{width:100%;overflow-x:auto;white-space:nowrap}
  .tabs a{white-space:nowrap}
  .pager{flex-wrap:wrap}
  .login-wrap{padding:20px}
  .login-card{width:100%;max-width:400px;padding:26px 20px}
}