/* 用量排行榜：/leaderboard 页面 + 控制台「我的用量」卡 + 管理页「排行榜」分组。基础样式来自 style.css，不做悬浮上移。 */
.lb{max-width:1120px;margin:0 auto}
.lb h2{margin:8px 0 0;font-size:1.3rem;font-weight:700;letter-spacing:-.01em}
.lb-head{max-width:760px;margin:30px auto 26px;text-align:center}
.lb-head h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:14px 0 0}
.lb-sub{margin:14px auto 0;max-width:600px;font-size:1rem;line-height:1.75;color:var(--ink-2)}

.lb-ranges{display:flex;justify-content:center;gap:0;margin:0 auto 22px;width:max-content;max-width:100%;border:1px solid var(--line-strong);background:var(--surface)}
.lb-ranges button{min-height:42px;padding:8px 18px;font-size:.9rem;font-weight:550;color:var(--ink-2);border-right:1px solid var(--line);white-space:nowrap}
.lb-ranges button:last-child{border-right:0}
.lb-ranges button:hover{background:var(--line-soft);color:var(--ink)}
.lb-ranges button[aria-selected=true]{background:var(--ink);color:var(--bg)}

.lb-state{margin:0 0 18px;padding:12px 16px;border:1px solid var(--line);border-left:3px solid var(--accent-deep);background:var(--surface);font-size:.9rem;color:var(--ink-2)}
.lb-state.bad{border-left-color:var(--bad);color:var(--bad)}

.lb-totals{display:grid;grid-template-columns:1fr 1fr 1.4fr;background:var(--surface);border:1px solid var(--line);margin-bottom:20px}
.lb-totals>div{position:relative;display:flex;flex-direction:column;gap:6px;min-width:0;padding:20px 24px;border-right:1px solid var(--line)}
.lb-totals>div:last-child{border-right:0}
.lb-totals>div:first-child::before{content:"";position:absolute;left:-1px;top:-1px;width:32px;height:2px;background:var(--accent)}
.lb-totals span{font-size:.78rem;font-weight:500;color:var(--muted)}
.lb-totals strong{font-size:1.9rem;font-weight:650;letter-spacing:-.02em;line-height:1.15;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.lb-totals small{font-size:.8rem;line-height:1.5;color:var(--muted);overflow-wrap:anywhere}
.lb-hero{background:var(--warm-glow)}
.lb-hero strong{color:var(--accent-deep)}
.lb-hero small{color:var(--ink-2)}

.lb-me{display:grid;grid-template-columns:minmax(160px,220px) 1fr;gap:0;margin-bottom:20px;background:var(--surface);border:1px solid var(--line);border-top:2px solid var(--ink)}
.lb-me-rank{display:flex;flex-direction:column;gap:2px;padding:20px 24px;border-right:1px solid var(--line)}
.lb-me-rank h2{margin:6px 0 4px;font-size:1rem}
.lb-me-rank strong{font-size:2.4rem;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}
.lb-me-rank small{font-size:.8rem;color:var(--muted)}
.lb-me-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;border-bottom:1px solid var(--line)}
.lb-me-stats>div{min-width:0;padding:18px 20px;border-right:1px solid var(--line-soft)}
.lb-me-stats>div:last-child{border-right:0}
.lb-me-stats dt{font-family:var(--mono);font-size:.7rem;letter-spacing:.04em;color:var(--muted)}
.lb-me-stats dd{margin:6px 0 0;font-size:1.2rem;font-weight:650;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.lb-me-stats dd small{display:block;margin-top:2px;font-size:.74rem;font-weight:500;color:var(--ok)}
.lb-me-foot{grid-column:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px;padding:12px 20px}
.lb-me-note{margin:0;font-size:.84rem;line-height:1.6;color:var(--muted)}
.lb-switch{display:inline-flex;align-items:center;gap:10px;margin:0;min-height:44px;font-size:.86rem;font-weight:550;color:var(--ink);cursor:pointer}
.lb-switch input{width:20px;min-width:20px;height:20px;min-height:20px;margin:0;padding:0;accent-color:var(--ink)}
.lb-me .lb-stats-col{display:flex;flex-direction:column}
.lb-login{margin:0 0 20px;padding:12px 16px;background:var(--canvas);border:1px dashed var(--line-strong);font-size:.9rem;color:var(--ink-2)}

.lb-board .sec-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:12px}
.lb-board .sec-row>.subtle{text-align:right;font-size:.8rem}
.lb-table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line)}
.lb-table{width:100%;border-collapse:collapse;font-size:.92rem}
.lb-table th{padding:12px 14px;font-size:.78rem;font-weight:500;color:var(--muted);text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.lb-table td{padding:13px 14px;border-bottom:1px solid var(--line-soft);vertical-align:middle;white-space:nowrap;font-variant-numeric:tabular-nums}
.lb-table tbody tr:last-child td{border-bottom:0}
.lb-table tbody tr:hover td{background:#fffaf4}
.lb-table .lb-num{text-align:right}
.lb-table td.lb-empty{padding:42px 16px;text-align:center;color:var(--muted);white-space:normal}
.lb-table tr.is-me td{background:var(--accent-soft)}
.lb-rank{display:inline-grid;place-items:center;min-width:30px;height:30px;padding:0 6px;font-family:var(--mono);font-weight:700;font-size:.86rem;background:var(--canvas);color:var(--ink-2)}
.lb-rank.r1{background:#f6d28b;color:#6b4a12}
.lb-rank.r2{background:#e3e3e3;color:#3d3d3d}
.lb-rank.r3{background:#efc7a4;color:#6b3a12}
.lb-name{font-weight:600;overflow-wrap:anywhere;white-space:normal}
.lb-name.anon{font-weight:500;color:var(--muted)}
.lb-me-tag{margin-left:8px;padding:1px 6px;font-size:.7rem;font-weight:600;color:var(--accent-deep);background:var(--surface);border:1px solid rgba(194,65,12,.35)}
.lb-split{color:var(--ink-2);font-size:.84rem}
.lb-usd{font-weight:700}
.lb-usd small{display:block;font-size:.74rem;font-weight:500;color:var(--muted)}
.lb-model{font-size:.84rem;color:var(--ink-2)}

.lb-rules{margin-top:40px;padding:22px 26px;background:var(--surface);border:1px solid var(--line)}
.lb-rules h2{margin:0 0 6px;font-size:1.05rem}
.lb-rules ul{margin:0;padding:0;list-style:none}
.lb-rules li{position:relative;padding:8px 0 8px 18px;font-size:.88rem;line-height:1.7;color:var(--ink-2);border-top:1px solid var(--line-soft)}
.lb-rules li:first-child{border-top:0}
.lb-rules li::before{content:"";position:absolute;left:2px;top:17px;width:6px;height:6px;background:var(--accent)}
.lb .page-footer a{color:var(--muted)}

@media(max-width:950px){
  .lb-me{grid-template-columns:1fr}
  .lb-me-rank{border-right:0;border-bottom:1px solid var(--line);flex-direction:row;flex-wrap:wrap;align-items:baseline;gap:4px 12px}
  .lb-me-rank .eyebrow{flex-basis:100%}
  .lb-me-rank h2{margin:0}
  .lb-me-foot{grid-column:1}
}
@media(max-width:650px){
  .lb-hide-narrow{display:none}
  .lb-head{margin:16px auto 20px}
  .lb-sub{font-size:.92rem}
  .lb-ranges{width:100%}
  .lb-ranges button{flex:1 1 0;padding:8px 4px;font-size:.84rem}
  .lb-totals{grid-template-columns:1fr 1fr}
  .lb-totals>div{padding:14px 16px}
  .lb-totals>div:nth-child(2){border-right:0}
  .lb-totals .lb-hero{grid-column:1/-1;border-top:1px solid var(--line)}
  .lb-totals strong{font-size:1.4rem}
  .lb-me-stats{grid-template-columns:1fr 1fr}
  .lb-me-stats>div{padding:12px 16px}
  .lb-me-stats>div:nth-child(2){border-right:0}
  .lb-me-stats>div:nth-child(-n+2){border-bottom:1px solid var(--line-soft)}
  .lb-me-foot{padding:10px 16px}
  .lb-board .sec-row{flex-direction:column;align-items:flex-start;gap:4px}
  .lb-board .sec-row>.subtle{text-align:left}
  /* 窄屏：每一名一张卡片，不出横向滚动 */
  .lb-table-wrap{overflow:visible;background:none;border:0}
  .lb-table,.lb-table tbody,.lb-table tr,.lb-table td{display:block;width:100%}
  .lb-table thead{display:none}
  .lb-table tr{display:grid;grid-template-columns:auto 1fr auto;grid-template-areas:"rank name usd" "rank tokens usd" "meta meta meta";gap:2px 12px;align-items:center;margin-bottom:8px;padding:12px 14px;background:var(--surface);border:1px solid var(--line)}
  .lb-table tr.is-me{border-color:var(--accent)}
  .lb-table tr.is-me td{background:none}
  .lb-table tbody tr:hover td{background:none}
  .lb-table td{padding:0;border:0;white-space:normal}
  .lb-table td.lb-c-rank{grid-area:rank}
  .lb-table td.lb-c-name{grid-area:name;min-width:0}
  .lb-table td.lb-c-tokens{grid-area:tokens;text-align:left;font-size:.84rem;color:var(--ink-2)}
  .lb-table td.lb-c-tokens::after{content:" token"}
  .lb-table td.lb-c-usd{grid-area:usd;text-align:right}
  .lb-table td.lb-c-split,.lb-table td.lb-c-calls,.lb-table td.lb-c-model{grid-area:meta;display:none}
  .lb-table td.lb-c-meta{grid-area:meta;display:block;margin-top:6px;padding-top:6px;border-top:1px dashed var(--line-soft);font-size:.76rem;color:var(--muted)}
  .lb-table td.lb-empty{display:block}
  .lb-table tr.lb-empty-row{display:block}
  .lb-rules{padding:18px 16px}
}
@media(min-width:651px){.lb-table td.lb-c-meta{display:none}}

/* ---------- 控制台「我的用量」卡 ---------- */
.lb-usage{margin-top:20px}
.lb-usage .section-title .text-button{white-space:nowrap}
.lb-usage-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border:1px solid var(--line)}
.lb-usage-col{min-width:0;padding:16px 20px;border-right:1px solid var(--line)}
.lb-usage-col:last-child{border-right:0}
.lb-usage-col h3{margin:0 0 10px;font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.06em;color:var(--muted)}
.lb-usage-col dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px;margin:0}
.lb-usage-col dt{font-size:.76rem;color:var(--muted)}
.lb-usage-col dd{margin:3px 0 0;font-size:1.15rem;font-weight:650;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.lb-usage-col dd.ok{color:var(--ok)}
.lb-usage .subtle{margin-top:10px}
@media(max-width:650px){
  .lb-usage-grid{grid-template-columns:1fr}
  .lb-usage-col{border-right:0;border-bottom:1px solid var(--line);padding:14px 16px}
  .lb-usage-col:last-child{border-bottom:0}
}

/* ---------- 管理页「排行榜」分组 ---------- */
.lb-admin .lb-admin-form{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:flex-end}
.lb-admin .lb-admin-form>label{flex:1 1 220px;margin:0}
.lb-admin .lb-admin-form>label.lb-switch{flex:0 1 auto}
.lb-admin .lb-admin-form>button{flex:none}
.lb-admin td{overflow-wrap:anywhere}
.lb-admin-actions{display:flex;align-items:center;gap:12px}
.lb-admin-tools{margin-top:8px}
.lb-admin-log{margin:18px 0 8px;font-size:.9rem}
@media(max-width:650px){.lb-admin .lb-admin-form>button{width:100%}}
@media(prefers-reduced-motion:reduce){.lb-ranges button{transition:none}}