.usage-summary{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:18px 0 24px}
.usage-summary span{display:block;font-size:12px;color:var(--ink-faint);margin-bottom:8px}
.usage-summary b{font-size:20px;font-variant-numeric:tabular-nums}
.usage-filters{display:flex;flex-wrap:wrap;gap:12px;align-items:end;margin:18px 0}
.usage-filters label{display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--ink-soft);flex:1;min-width:150px}
.usage-filters input,.usage-filters select{width:100%;padding:8px;border:1px solid var(--line-soft);border-radius:8px;background:var(--card-solid);color:var(--ink)}
.usage-views{display:flex;flex-wrap:wrap;gap:4px}
/* 图形和明细共享统计口径，图表视觉在页面内独立维护，不影响其它工作台。 */
.chart-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:26px 0 16px}
.chart-eyebrow{font-size:11px;color:var(--accent);letter-spacing:2px;font-weight:700}
.chart-toolbar h3{font-size:19px;margin:5px 0 0;color:var(--ink);font-weight:650}
.chart-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.chart-card{grid-column:span 3;min-width:0;border:1px solid var(--line-soft);border-radius:16px;padding:20px;background:var(--card-solid)}
.chart-card.trend-card{grid-column:span 4}.chart-card.token-card{grid-column:span 2}.chart-card.heat-card{grid-column:span 6}
.chart-head{display:flex;align-items:start;justify-content:space-between;gap:12px;margin-bottom:20px}
.chart-head h4{font-size:15px;margin:0 0 7px;font-weight:650;color:var(--ink)}
.chart-head p{font-size:11.5px;color:var(--ink-faint);margin:0;line-height:1.6}
.chart-legend,.chart-tag{font-size:11px;white-space:nowrap;color:var(--ink-soft)}
.chart-tag{background:var(--accent-soft);padding:4px 8px;border-radius:6px;color:var(--accent)}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px}.dot.purple{background:var(--accent)}
.trend-svg{width:100%;display:block;overflow:visible;margin-top:16px}.chart-axis{font-size:11px;fill:var(--ink-faint);font-family:var(--sans)}
.chart-gridline{stroke:var(--line-soft);stroke-dasharray:3 5;stroke-width:1}.trend-line{fill:none;stroke:var(--accent);stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round}
.trend-dot{fill:var(--card-solid);stroke:var(--accent);stroke-width:2}.trend-point:hover .trend-dot{fill:var(--accent);stroke-width:4}
.chart-hit{cursor:pointer}.chart-hit:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.chart-foot{font-size:10.5px;color:var(--ink-faint);display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px;line-height:1.6}
.donut-wrap{max-width:165px;margin:-4px auto 10px}.donut-wrap svg{width:100%;display:block}.donut-total{font-size:24px;fill:var(--ink);font-weight:700;font-family:var(--sans)}
.donut-legend{display:grid;gap:9px}.donut-legend>div{display:grid;grid-template-columns:1fr auto 42px;gap:8px;align-items:center;font-size:11px;color:var(--ink-soft)}
.donut-legend i{width:7px;height:7px;display:inline-block;border-radius:50%;margin-right:7px}.donut-legend small{font-size:10.5px;color:var(--ink-faint);text-align:right}
.rank-list{display:grid;gap:15px;min-height:80px}.rank-row{display:flex;gap:10px;align-items:center;width:100%;border:0;background:transparent;cursor:pointer;padding:4px;border-radius:8px;text-align:left;color:var(--ink);font-family:var(--sans)}
.rank-row:hover{background:var(--accent-soft)}.rank-index{font-size:11px;color:var(--ink-faint);font-variant-numeric:tabular-nums;width:18px}
.rank-body{flex:1;min-width:0}.rank-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;margin-bottom:8px}.rank-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rank-top b{white-space:nowrap;font-size:12px;font-variant-numeric:tabular-nums}
.rank-share{font-size:11px;color:var(--ink-faint);width:42px;text-align:right}.rank-track{display:block;height:7px;border-radius:6px;overflow:hidden;background:var(--line-soft)}.rank-track i{display:block;height:100%;border-radius:6px}.rank-track .purple{background:linear-gradient(90deg,var(--accent),#b178ce)}.rank-track .teal{background:linear-gradient(90deg,#268f84,#69c8b4)}
.heat-scroll{overflow-x:auto;padding:2px 0 10px}.heat-matrix{display:grid;grid-template-columns:150px repeat(var(--heat-days),minmax(24px,1fr));gap:6px;align-items:center;min-width:max-content}
.heat-label{color:var(--ink-soft);font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:8px}
.heat-day{font-size:10px;color:var(--ink-faint);text-align:center;line-height:26px}.heat-cell{height:27px;border:1px solid transparent;border-radius:5px;cursor:pointer;min-width:24px;padding:0}
.level-0{background:var(--line-soft)}.level-1{background:#e7d7ef}.level-2{background:#c29bd4}.level-3{background:#9c62b7}.level-4{background:#61007d}
.heat-cell:hover{border-color:var(--ink);box-shadow:0 0 0 2px var(--accent-soft)}.heat-scale{display:flex;align-items:center;gap:4px}.heat-scale i{display:inline-block;width:12px;height:12px;border-radius:3px}
.chart-empty{min-height:160px;display:flex;justify-content:center;align-items:center;font-size:12px;color:var(--ink-faint);border:1px dashed var(--line-soft);border-radius:10px}
.chart-tooltip{position:fixed;z-index:100;max-width:min(360px,calc(100vw - 16px));pointer-events:none;background:var(--card-solid);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:9px;padding:9px 12px;font-size:12px;color:var(--ink);line-height:1.6}
.usage-summary>div.metric-card{position:relative;padding:18px 16px;border-radius:14px;border:1px solid var(--line-soft);background:var(--card-solid)}
.metric-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.usage-summary .metric-top span{margin:0}.metric-icon{width:30px;height:30px;background:var(--accent-soft);color:var(--accent);border-radius:9px;display:flex;align-items:center;justify-content:center}.metric-icon svg{width:17px;height:17px}
.metric-card.metric-users .metric-icon{background:rgba(38,143,132,.12);color:#268f84}.metric-card.metric-success .metric-icon{background:rgba(63,157,99,.12);color:var(--green)}
.usage-summary .metric-card b{font-size:27px;letter-spacing:-.6px}.metric-caption{font-size:11px;color:var(--ink-faint);margin-top:8px;line-height:1.5}
.usage-filter-details{border:1px solid var(--line-soft);border-radius:10px;padding:10px 12px;margin-top:12px;background:var(--card-solid)}
.usage-filter-details summary{font-size:12px;color:var(--ink-soft);cursor:pointer}.usage-filter-details .usage-filters{margin:14px 0 4px}
.usage-details{border-top:1px solid var(--line-soft);padding-top:20px;margin-top:24px}.usage-details>summary{font-size:14px;font-weight:600;color:var(--ink-soft);cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}.usage-details>summary::-webkit-details-marker{display:none}.usage-details>summary:after{content:'展开明细 ↗';font-size:11px;font-weight:400;color:var(--accent)}.usage-details[open]>summary:after{content:'收起明细 ↙'}.usage-details[open]>summary{margin-bottom:18px}
:root[data-theme="dark"] .level-1{background:#43334f}:root[data-theme="dark"] .level-2{background:#735281}:root[data-theme="dark"] .level-3{background:#a56bbe}:root[data-theme="dark"] .level-4{background:#ce91e8}
@media(max-width:900px){.chart-card.trend-card,.chart-card.token-card{grid-column:span 3}.chart-head{flex-wrap:wrap}.heat-matrix{grid-template-columns:130px repeat(var(--heat-days),minmax(24px,1fr))}}
@media(max-width:650px){.chart-grid{display:block}.chart-card{margin-bottom:14px;padding:16px}.chart-toolbar h3{font-size:17px}.trend-svg{min-width:0}.usage-summary .metric-card b{font-size:22px}.usage-summary{gap:10px}.usage-summary>div.metric-card{padding:14px 12px}.chart-head{margin-bottom:16px}.chart-head .seg button{padding:5px 10px;font-size:11px}.donut-wrap{max-width:170px}.donut-legend{max-width:270px;margin:auto}.rank-list{gap:12px}.metric-caption{font-size:10px}.heat-matrix{grid-template-columns:115px repeat(var(--heat-days),24px)}.chart-card.token-card{display:grid;grid-template-columns:1fr}.chart-tooltip{font-size:11px}}

.chart-card.personal-rank{grid-column:span 6}

@media(max-width:700px){.usage-summary{grid-template-columns:repeat(2,minmax(0,1fr))}}

.cost-card .donut-wrap{max-width:220px;margin:auto}
.input-alerts{padding:18px 20px;margin:0 0 20px;border:1px solid var(--line-soft);border-radius:16px;background:var(--card-solid)}
.input-alerts.has-input-alerts{border-color:#e3a54880;background:linear-gradient(110deg,#e3a5480e,var(--card-solid))}
.input-alert-head{display:flex;gap:14px;align-items:center}.input-alert-head b{font-size:15px}.input-alert-head p{margin:6px 0 0;color:var(--ink-soft);font-size:12px;line-height:1.7}
.input-alert-icon{display:flex;padding:10px;color:#bd872d;border-radius:12px;background:#e3a5481c}.input-alert-icon svg{width:24px;height:24px}
.input-alerts summary{margin-top:14px;font-size:12px;cursor:pointer;color:var(--ink-soft)}
.input-alert-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:16px;padding:13px 0;border-top:1px solid var(--line-soft)}
.input-alert-row:first-child{margin-top:12px}.input-alert-row b,.input-alert-row span,.input-alert-row small{display:block;overflow-wrap:anywhere}
.input-alert-row b{font-size:13px}.input-alert-row span{font-size:12px;margin-top:5px;color:var(--ink-soft)}.input-alert-row small{font-size:11px;margin-top:5px;color:var(--ink-faint);line-height:1.6}.input-alert-row.warning small:last-child{color:#bd872d}
@media(max-width:600px){.input-alerts{padding:15px}.input-alert-row{grid-template-columns:1fr;gap:8px}.input-alert-head{align-items:flex-start}}

.cost-wide{grid-column:span 6}.cost-wide #usageCostDonut{display:grid;grid-template-columns:240px minmax(0,1fr);align-items:center;gap:32px}.cost-wide .donut-wrap{width:220px}.cost-wide .donut-legend{margin:0}.cost-wide #usageCostDonut>.hint{grid-column:1/-1}
@media(max-width:700px){.cost-wide #usageCostDonut{grid-template-columns:1fr;gap:12px}}

.optimization-panel{margin-bottom:18px;padding:20px;border:1px solid var(--line-soft);border-radius:16px;background:var(--card-solid)}.optimization-panel .chart-head{margin-bottom:14px}
.optimization-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.optimization-card{min-width:0;border:1px solid var(--line-soft);border-radius:12px;padding:16px;background:linear-gradient(130deg,var(--accent-soft),transparent)}
.optimization-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.optimization-title b{font-size:13px;overflow-wrap:anywhere}.optimization-values{display:flex;gap:16px;align-items:baseline;margin:18px 0 12px;font-size:12px;color:var(--ink-soft)}.optimization-values b{font-size:18px;color:var(--ink)}.optimization-values strong{font-size:28px;color:var(--accent)}.optimization-values i{font-style:normal;color:var(--ink-faint)}
.optimization-track{height:7px;background:var(--line-soft);border-radius:8px;overflow:hidden}.optimization-track i{display:block;height:100%;background:#38b5a0;border-radius:8px}.optimization-detail{font-size:11px;color:var(--ink-soft);margin-top:12px}.optimization-card p{font-size:10px;color:var(--ink-faint);line-height:1.7;margin:7px 0 0}
@media(max-width:700px){.optimization-grid{grid-template-columns:1fr}.optimization-panel{padding:15px}.optimization-values{gap:12px}}