:root{color-scheme:dark;--bg:#101310;--panel:#181d18;--line:#30382e;--muted:#8d998c;--text:#ecf0e7;--gold:#d8bb78;--up:#ff8271;--down:#acd082}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px system-ui,'Microsoft YaHei',sans-serif}header{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 4%;color:var(--muted);font-size:12px}.brand{display:flex;gap:12px;text-decoration:none;color:var(--gold);font-size:24px}.brand>span{font-size:17px;font-weight:600;letter-spacing:1px}.brand .muted{font:11px monospace;margin-left:12px}main{max-width:1440px;margin:auto;padding:42px 4% 20px}.intro{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:32px}.eyebrow{font:10px monospace;letter-spacing:2px;color:var(--gold);margin:0 0 12px}h1{font-size:32px;letter-spacing:2px;font-weight:500;margin:0 0 16px}h1 span{font-size:14px;font-weight:400;color:var(--muted);letter-spacing:0;margin-left:22px}h2{font-size:17px;font-weight:500;margin:0}.muted,small,label{color:var(--muted)}.connection{text-align:right;line-height:1.9}.connection b{font-weight:400}.connection small{display:block;font-size:11px}i{width:7px;height:7px;display:inline-block;border-radius:50%;background:var(--gold);margin-right:8px}i.live{background:var(--down);box-shadow:0 0 12px #acd08255}.toolbar,.section-title,.chart-controls,.chart-footer{display:flex;justify-content:space-between;align-items:center;gap:15px}.toolbar{margin-bottom:18px}button{border:1px solid var(--line);border-radius:5px;color:var(--muted);background:transparent;padding:9px 13px;cursor:pointer;font:inherit;font-size:12px}button:hover{color:var(--text);border-color:#7e8060}button:focus-visible{outline:2px solid var(--gold)}button.active{background:#343d2d;color:var(--gold);border-color:#596247}.tabs{display:flex;gap:5px;flex-wrap:wrap}.tabs button{border-color:transparent}.cards{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:9px;background:var(--panel);margin-bottom:22px}.cards article{padding:25px 24px;border-right:1px solid var(--line);min-width:0}.cards article:last-child{border:0}.cards label{font-size:12px;display:block}.cards label span{float:right;font-size:10px}.cards strong{display:block;font:36px 'Cascadia Code',Consolas,monospace;margin:16px 0;letter-spacing:-1px}.cards small{font-size:11px}.up{color:var(--up)!important}.down{color:var(--down)!important}.panel{border:1px solid var(--line);background:var(--panel);border-radius:9px;margin-bottom:22px;overflow:hidden}.section-title{padding:24px}.chart-controls{padding:0 24px 20px}.follow{font-size:11px;white-space:nowrap}.follow input{accent-color:var(--gold);vertical-align:middle}.metrics{display:grid;grid-template-columns:repeat(4,1fr);padding:8px 24px 22px;gap:15px}.metrics label{display:block;font-size:11px;margin-bottom:10px}.metrics b{font:19px Consolas,monospace}.canvas-wrap{position:relative;height:340px;margin:0 20px}canvas{display:block;width:100%;height:100%}#empty{position:absolute;top:42%;left:10%;right:10%;text-align:center;color:var(--muted);line-height:2}#empty small{font-size:12px}#tooltip{position:absolute;pointer-events:none;padding:10px 14px;border:1px solid var(--line);border-radius:5px;background:#101610ef;font:12px monospace;z-index:2;line-height:1.8}.chart-footer{border-top:1px solid var(--line);padding:14px 24px;font-size:11px;color:var(--muted)}.chart-footer button{border:0;padding:0}.note{padding:0 24px 16px;margin:0;color:var(--gold);font-size:11px;line-height:1.7}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;white-space:nowrap;text-align:right}th,td{padding:18px 24px;border-top:1px solid #2a3128;font-size:13px}th{font-size:11px;font-weight:400;color:var(--muted)}th:first-child,td:first-child{text-align:left}td{font-family:Consolas,'Microsoft YaHei',monospace}td small{display:block;font:10px monospace;margin-top:5px}tr.selected{background:#222a20}tbody tr{cursor:pointer}tbody tr:hover{background:#252c22}footer{display:flex;justify-content:space-between;gap:20px;font-size:10px;color:var(--muted);line-height:1.8;padding:3px 0 16px}@media(max-width:850px){main{padding-top:25px}.intro{align-items:flex-start}h1{font-size:25px}h1 span{display:block;margin:12px 0 0}.cards{grid-template-columns:1fr 1fr}.cards article:nth-child(2){border:0}.cards article:nth-child(-n+2){border-bottom:1px solid var(--line)}.cards strong{font-size:30px}.chart-controls{align-items:flex-start;flex-direction:column}.chart-footer>span:nth-child(2){display:none}.canvas-wrap{height:300px}footer{flex-direction:column;gap:5px}.brand .muted{display:none}}@media(max-width:520px){header{height:60px}#clock{font-size:10px}.intro{display:block}.connection{text-align:left;margin-top:20px}.connection small{display:inline-block;margin-right:12px}.toolbar{align-items:flex-start}.cards article{padding:18px 14px}.cards strong{font-size:28px}.cards small{font-size:10px}.metrics{grid-template-columns:1fr 1fr;row-gap:20px}.section-title{padding:20px 16px}.chart-controls{padding-left:12px;padding-right:12px}.tabs button{padding:8px}.section-title>.muted{display:none}.chart-footer{padding:14px;font-size:10px}.canvas-wrap{margin:0 8px}.note{padding-left:16px;padding-right:16px}}
.chart-empty{position:absolute;top:42%;left:5%;right:5%;text-align:center;color:var(--muted);line-height:2}.chart-tooltip{position:absolute;z-index:2;pointer-events:none;background:#101610ef;border:1px solid var(--line);border-radius:5px;padding:10px 14px;font:12px/1.8 Consolas,monospace;white-space:pre-line}.historical-panel .canvas-wrap{height:370px}@media(max-width:520px){.historical-panel .canvas-wrap{height:300px}}

.section-nav{display:flex;gap:22px;margin:0 0 22px;font-size:12px}.section-nav a{color:var(--gold);text-decoration:none}.section-nav a:hover{text-decoration:underline}#longHistory,#intraday{scroll-margin-top:20px}

/* Chart interactions share a visual language with the Bitcoin desk. */
.chart-panel,.historical-panel{background:linear-gradient(145deg,#1b211a,#171c17);box-shadow:0 8px 28px #00000012}
.section-title h2{letter-spacing:.2px}.canvas-wrap{margin-left:24px;margin-right:24px}canvas{cursor:crosshair;touch-action:pan-y}
.chart-tooltip,#tooltip{min-width:230px;max-width:285px;background:#101610f5;border:1px solid #62664b;border-radius:7px;box-shadow:0 8px 26px #0005;padding:12px 16px;line-height:1.7;white-space:normal}
.tip-title{display:block;font:10px/1.6 Consolas,monospace;color:var(--muted);margin-bottom:7px}.tip-price{display:block;font:23px/1.4 Consolas,monospace;color:var(--text)}.tip-price small{font:10px system-ui}.tip-label,.tip-ohlc{display:block;margin-top:7px;color:var(--muted);font:11px/1.8 Consolas,monospace}
.freshness{display:flex;align-items:flex-start;gap:13px;padding:15px 18px;margin:0 0 24px;background:#28251b;border:1px solid #5c5033;border-radius:8px;color:var(--gold)}.freshness[hidden]{display:none}.freshness-icon{font-size:24px;line-height:1}.freshness b{font-size:12px;font-weight:500}.freshness p{font-size:11px;line-height:1.9;color:#b6ae96;margin:5px 0 0}.connection{max-width:460px}.connection small{line-height:1.8}
@media(max-width:520px){.canvas-wrap{margin-left:10px;margin-right:10px}.chart-tooltip,#tooltip{min-width:200px;max-width:240px;padding:10px 12px}.tip-price{font-size:20px}}