:root {
  --cream:#F8F5F0; --paper:#F0EDE6; --charcoal:#1C1917;
  --muted:#57534E; --light:#A8A29E; --border:#D6D3D1;
  --sienna:#C65D3E; --teal:#1B6B5A; --gold:#B8860B;
  --plum:#6B3A5D; --sky:#3B7EA1; --red:#B91C1C;
  --font-display:'DM Serif Display','Noto Serif SC',Georgia,serif;
  --font-body:'Source Serif 4','Noto Serif SC',Georgia,serif;
  --font-mono:'JetBrains Mono','Menlo',monospace;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{background:var(--cream);color:var(--charcoal);font-family:var(--font-body);min-height:100vh;position:relative;}
body::before{content:'';position:fixed;top:0;left:0;width:100%;height:100%;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='256' height='256' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events:none;z-index:0;}
body>*{position:relative;z-index:1;}

.header{padding:48px 40px 32px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px;}
.header-left h1{font-family:var(--font-display);font-size:42px;font-weight:400;letter-spacing:-0.5px;line-height:1.1;color:var(--charcoal);}
.header-left .accent{color:var(--sienna);}
.header-right{text-align:right;color:var(--muted);font-size:13px;line-height:1.6;font-family:var(--font-mono);letter-spacing:-0.3px;}

.data-hint{display:none;text-align:center;padding:10px 40px;font-size:13px;font-family:var(--font-mono);letter-spacing:0.5px;}
.data-hint.demo{display:block;background:var(--gold);color:#fff;}
.data-hint.real{display:block;background:var(--teal);color:#fff;}

/* 控制栏 */
.control-bar{display:flex;justify-content:center;align-items:center;gap:16px;padding:16px 40px;border-bottom:1px solid var(--border);flex-wrap:wrap;}
.date-picker{display:flex;align-items:center;gap:8px;}
.date-picker label{font-size:12px;font-family:var(--font-mono);color:var(--muted);letter-spacing:0.5px;}
.date-picker select{font-family:var(--font-body);font-size:14px;padding:8px 12px;border:1px solid var(--border);background:var(--cream);color:var(--charcoal);outline:none;cursor:pointer;}
.date-picker select:focus{border-color:var(--sienna);}
.date-picker .sep{color:var(--light);font-size:12px;}
.date-picker button{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;padding:8px 20px;border:1px solid var(--charcoal);background:transparent;color:var(--charcoal);cursor:pointer;transition:all 0.15s;}
.date-picker button:hover{background:var(--charcoal);color:var(--cream);}
.date-picker button:active{transform:scale(0.97);}

.search-group{display:flex;align-items:center;gap:8px;}
.search-group select,.search-group input{font-family:var(--font-body);font-size:14px;padding:8px 12px;border:1px solid var(--border);background:var(--cream);color:var(--charcoal);outline:none;}
.search-group select:focus,.search-group input:focus{border-color:var(--sienna);}
.search-group input{width:200px;}
.search-group input::placeholder{color:var(--light);}
.search-group button{font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;padding:8px 16px;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;transition:all 0.15s;}
.search-group button:hover{border-color:var(--charcoal);color:var(--charcoal);}
.search-group button:active{transform:scale(0.97);}

/* 过滤指示器 */
.filter-indicator{display:none;text-align:center;padding:8px 40px;font-size:12px;font-family:var(--font-mono);background:rgba(198,93,62,0.08);border-bottom:1px solid rgba(198,93,62,0.2);}
.filter-indicator.active{display:flex;justify-content:center;align-items:center;gap:12px;}
.filter-indicator .tag{color:var(--sienna);font-weight:600;}
.filter-indicator .clear-btn{color:var(--muted);cursor:pointer;text-decoration:underline;font-size:11px;}
.filter-indicator .clear-btn:hover{color:var(--sienna);}

.detail-panel{display:none;position:fixed;top:0;right:0;width:460px;height:100vh;background:var(--cream);border-left:2px solid var(--charcoal);z-index:1000;overflow-y:auto;padding:32px;}
.detail-panel.open{display:block;}
.detail-panel .close-btn{position:absolute;top:16px;right:20px;font-size:28px;color:var(--muted);cursor:pointer;background:none;border:none;font-family:var(--font-body);}
.detail-panel .close-btn:hover{color:var(--red);}
.detail-panel h3{font-family:var(--font-display);font-size:22px;margin-bottom:20px;color:var(--charcoal);}
.detail-panel .stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);margin-bottom:20px;}
.detail-panel .stat-item{background:var(--cream);padding:14px;text-align:center;}
.detail-panel .stat-item .label{font-size:11px;color:var(--muted);font-family:var(--font-mono);letter-spacing:1px;text-transform:uppercase;}
.detail-panel .stat-item .value{font-family:var(--font-display);font-size:22px;color:var(--sienna);margin-top:4px;}
.detail-panel .mini-chart{width:100%;height:200px;}

.summary-cards{display:flex;justify-content:center;gap:1px;padding:0 40px;border-bottom:1px solid var(--border);background:var(--border);}
.summary-card{flex:1;max-width:240px;background:var(--cream);padding:28px 20px;text-align:center;}
.summary-card .label{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-family:var(--font-mono);}
.summary-card .value{font-family:var(--font-display);font-size:36px;color:var(--charcoal);line-height:1;}
.summary-card:nth-child(2) .value{color:var(--sienna);}
.summary-card:nth-child(3) .value{color:var(--teal);}
.summary-card:nth-child(4) .value{color:var(--gold);}
.summary-card:nth-child(5) .value{color:var(--plum);}

.tab-bar{display:flex;justify-content:center;gap:0;padding:0 40px;border-bottom:2px solid var(--charcoal);overflow-x:auto;-webkit-overflow-scrolling:touch;}
.tab-btn{font-family:var(--font-mono);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;padding:16px 28px;background:transparent;border:none;color:var(--muted);cursor:pointer;position:relative;transition:color 0.2s;}
.tab-btn:hover{color:var(--charcoal);}
.tab-btn.active{color:var(--charcoal);font-weight:600;}
.tab-btn.active::after{content:'';position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--sienna);}
.tab-section{display:none;}
.tab-section.active{display:block;}

.dashboard{display:grid;grid-template-columns:1fr 1fr;gap:0;padding:0 40px;}
.chart-card{padding:32px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);position:relative;transition:background 0.2s;}
.chart-card:nth-child(2n){border-right:none;}
.chart-card:hover{background:#F0EDE6;}
.chart-card.full-width{grid-column:1/-1;border-right:none;}
.chart-card h3{font-family:var(--font-display);font-size:20px;font-weight:400;margin-bottom:20px;color:var(--charcoal);}
.chart-card h3::before{content:'';display:inline-block;width:3px;height:18px;background:var(--sienna);margin-right:12px;vertical-align:middle;}
.chart-container{width:100%;height:360px;}
.chart-container.tall{height:440px;}
.chart-container.short{height:300px;}

/* 全屏按钮 */
.chart-card .fs-btn{position:absolute;top:28px;right:28px;font-size:16px;color:var(--light);cursor:pointer;background:none;border:none;padding:4px;transition:color 0.2s;opacity:0;}
.chart-card:hover .fs-btn{opacity:1;}
.chart-card .fs-btn:hover{color:var(--sienna);}

/* 全屏覆盖层 */
.fullscreen-overlay{display:none;position:fixed;top:0;left:0;width:100vw;height:100vh;background:var(--cream);z-index:2000;padding:24px;}
.fullscreen-overlay.active{display:flex;flex-direction:column;}
.fullscreen-overlay .fs-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;}
.fullscreen-overlay .fs-header h2{font-family:var(--font-display);font-size:24px;color:var(--charcoal);}
.fullscreen-overlay .fs-header .fs-close{font-size:28px;color:var(--muted);cursor:pointer;background:none;border:none;}
.fullscreen-overlay .fs-header .fs-close:hover{color:var(--red);}
.fullscreen-overlay .fs-chart{flex:1;width:100%;}

.segment-btns{display:flex;gap:8px;padding:8px 0;flex-wrap:wrap;}
.segment-btn{font-family:var(--font-mono);font-size:11px;letter-spacing:0.5px;padding:8px 16px;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:pointer;transition:all 0.15s;}
.segment-btn:hover,.segment-btn.active{border-color:var(--sienna);color:var(--sienna);background:rgba(198,93,62,0.05);}
.segment-btn:active{transform:scale(0.98);}

.category-card{background:var(--cream);padding:14px;cursor:pointer;transition:background 0.15s;border-bottom:1px solid var(--border);}
.category-card:hover{background:var(--paper);}
.category-card:active{transform:scale(0.98);}

.footer{text-align:center;padding:40px;font-size:12px;color:var(--light);font-family:var(--font-mono);letter-spacing:1px;text-transform:uppercase;border-top:1px solid var(--border);}

.fade-in{opacity:0;transform:translateY(20px);animation:fadeIn 0.6s ease forwards;}
@keyframes fadeIn{to{opacity:1;transform:translateY(0);}}
.summary-card{animation-delay:calc(var(--i,0) * 0.1s);}

.no-echarts{text-align:center;padding:60px 40px;font-family:var(--font-display);font-size:20px;color:var(--sienna);}

@media (prefers-reduced-motion: reduce){
  .fade-in{animation:none;opacity:1;transform:none;}
  .chart-card,.tab-btn,.search-group button,.segment-btn,.category-card{transition:none;}
}
@media (max-width: 1024px){
  .header{padding:32px 24px 24px;}
  .header-left h1{font-size:32px;}
  .dashboard{grid-template-columns:1fr;padding:0 24px;}
  .chart-card{border-right:none;}
  .summary-cards{padding:0 24px;flex-wrap:wrap;}
  .summary-card{min-width:140px;flex:1 1 140px;}
  .tab-bar{padding:0 24px;justify-content:flex-start;}
  .control-bar{padding:12px 24px;}
}
@media (max-width: 640px){
  .header{padding:24px 16px 20px;}
  .header-left h1{font-size:26px;}
  .header-right{font-size:11px;text-align:left;}
  .summary-cards{padding:0 16px;}
  .summary-card{padding:20px 12px;}
  .summary-card .value{font-size:28px;}
  .dashboard{padding:0 16px;}
  .chart-card{padding:24px 16px;}
  .chart-card h3{font-size:17px;}
  .chart-container{height:300px;}
  .chart-container.tall{height:360px;}
  .tab-btn{padding:14px 18px;font-size:11px;}
  .control-bar{padding:12px 16px;gap:10px;}
  .search-group input{width:140px;}
  .detail-panel{width:100%;}
  .footer{padding:24px 16px;font-size:10px;}
  .chart-card .fs-btn{opacity:1;}
}