:root{color:#223d3e;font-synthesis:none;--ink:#173c43;--muted:#78817b;--line:#dbddd3;--gold:#a88247;--paper:#f7f5ee;background:#f5f3ec;font-family:Microsoft YaHei,PingFang SC,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;background:0 0;border:0}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible{outline-offset:4px;outline:2px solid #b38c4c}a{color:inherit;text-decoration:none}button:hover,a:hover{color:#a27838}button[aria-pressed=true]{color:var(--ink)}[hidden]{display:none!important}.masthead{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:24px;height:92px;padding:0 34px;display:flex}.brand{letter-spacing:5px;white-space:nowrap;align-items:center;gap:13px;font-family:STSong,SimSun,serif;font-size:26px;display:flex}.brand small{letter-spacing:2px;color:var(--muted);margin-top:7px;font-family:system-ui;font-size:8px;display:block}.seal{background:var(--ink);color:#e1c58f;letter-spacing:0;border-radius:2px;flex-direction:column;justify-content:center;align-items:center;width:38px;height:47px;font-size:16px;line-height:20px;display:flex}.modes{background:#eaece4;border-radius:4px;gap:8px;padding:5px;display:flex}.modes button{letter-spacing:1px;color:#6a7770;border-radius:3px;padding:12px 24px;font-size:13px}.modes button[aria-pressed=true]{background:var(--ink);color:var(--paper);box-shadow:0 2px 4px #173c4320}.text-button{color:#63766f;padding:5px 0;font-size:12px}.text-button span{margin-left:12px;font-size:19px}.small{font-size:11px}main{grid-template-columns:294px minmax(0,1fr);height:calc(100dvh - 92px);min-height:480px;display:grid}#panel{scrollbar-width:thin;background:var(--paper);border-right:1px solid var(--line);z-index:4;padding:27px 26px 18px;overflow-y:auto}.panel-heading{justify-content:space-between;display:flex}.eyebrow{letter-spacing:2px;color:var(--gold);font-family:system-ui;font-size:9px;font-weight:600}h1{letter-spacing:2px;margin:17px 0 13px;font-family:STSong,SimSun,serif;font-size:31px;font-weight:500;line-height:1.5}.intro{color:#718079;margin:0;font-size:12px;line-height:1.9}.facts{gap:24px;margin:22px 0 28px;display:flex}.facts strong{color:var(--ink);font-family:Georgia,serif;font-size:26px;font-weight:400;display:block}.facts em{margin-left:2px;font-size:11px;font-style:normal}.facts small{color:#839084;margin-top:4px;font-size:9px;display:block}section{border-top:1px solid var(--line);margin-top:20px;padding-top:17px}section h2{letter-spacing:1px;margin:0 0 13px;font-size:12px;font-weight:500}.section-label{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.section-label h2{margin:0}output{color:var(--gold);font-variant-numeric:tabular-nums;font-size:11px}input[type=range]{width:100%;height:3px;accent-color:var(--ink);cursor:pointer;margin:16px 0;display:block}.range-ends{color:#92998e;justify-content:space-between;font-size:10px;display:flex}.segmented{background:#e8ebe2;border-radius:3px;padding:3px;display:flex}.segmented button{color:#6a786f;border-radius:2px;flex:1;padding:9px 0;font-size:11px}.segmented button[aria-pressed=true]{background:#fffdf7;box-shadow:0 1px 4px #0001}.section-label.sub{color:#718079;margin-top:18px;font-size:11px}.note{color:#8a9285;margin:11px 0 0;font-size:10px;line-height:1.8}#layers{grid-template-columns:1fr 1fr;gap:8px 10px;display:grid}.layer{align-items:center;gap:5px;font-size:10px;display:flex}.layer input{accent-color:var(--ink);width:12px;height:12px;margin:0}.layer button{text-align:left;color:#66776d;padding:2px 0}.layer button:hover{color:var(--gold)}#selection{background:#eeeee4;border:0;border-radius:3px;margin-top:22px;padding:14px 13px}#selection h2{letter-spacing:1px;margin:10px 0;font-family:STSong,SimSun,serif;font-size:16px}#selection p{color:#6f7d70;margin:0 0 12px;font-size:11px;line-height:1.9}.badge{color:#66816c;border:1px solid #c6cec0;border-radius:2px;padding:4px 6px;font-size:9px;display:inline-block}.badge.inferred{color:#a48756;border-color:#dbccb0}.panel-footer{justify-content:space-between;align-items:center;padding:20px 0 0;font-size:11px;display:flex}.joint-grid{grid-template-columns:1fr 1fr;gap:6px;display:grid}.joint-grid button{border:1px solid var(--line);border-radius:2px;padding:10px 4px;font-size:11px}.joint-grid button[aria-pressed=true]{border-color:var(--ink);background:#e5e9de}#viewport{background:#dbe6df;min-width:0;position:relative;overflow:hidden}#scene{touch-action:none;width:100%;height:100%;display:block}.view-label{color:#405d54;pointer-events:none;align-items:center;gap:10px;font-size:11px;display:flex;position:absolute;top:28px;left:28px}.live-dot{background:#63896f;border-radius:50%;width:5px;height:5px}.label-divider{color:#a3b5a5}#view-preset{color:#7b9180}.toolbar{background:#fafaf2e8;border:1px solid #ffffff90;border-radius:4px;flex-direction:column;gap:2px;padding:6px;display:flex;position:absolute;top:25px;right:24px;box-shadow:0 4px 20px #173c430b}.toolbar button{width:37px;height:37px;font-size:24px;line-height:1}.toolbar button[aria-pressed=true]{background:#dae3d3;border-radius:3px}.toolbar span{background:var(--line);height:1px;margin:5px}.bottom-bar{color:#5c7463;justify-content:space-between;align-items:center;gap:12px;font-size:10px;display:flex;position:absolute;bottom:24px;left:28px;right:25px}.bottom-bar>div{align-items:center;gap:18px;display:flex}.north{border:1px solid #acb9a6;border-radius:50%;flex-shrink:0;place-items:center;width:34px;height:34px;font-family:Georgia,serif;font-size:10px;display:grid}.bottom-bar button{white-space:nowrap;background:#f7f8efc0;border-radius:3px;padding:9px;font-size:10px}#loading{z-index:8;background:#e7ebe2f5;flex-direction:column;justify-content:center;align-items:center;transition:opacity .4s;display:flex;position:absolute;inset:0}.loader-mark{color:var(--gold);border:1px solid #c8b690;place-items:center;width:64px;height:64px;margin-bottom:22px;font-family:SimSun,serif;font-size:32px;display:grid}#loading strong{letter-spacing:3px;font-family:SimSun,serif;font-size:20px;font-weight:400}#loading p{color:#84927e;margin-top:12px;font-size:12px}#retry{background:var(--ink);color:var(--paper);border-radius:3px;margin-top:10px;padding:10px 24px}#diagnostics{border:1px solid var(--line);background:#f8f8efed;border-radius:3px;min-width:210px;padding:15px;font-size:11px;position:absolute;bottom:78px;right:24px}#diagnostics label{justify-content:space-between;align-items:center;gap:15px;margin-bottom:10px;display:flex}select{color:var(--ink);background:#fffdf6;border:1px solid #cad3c1;padding:5px;font-size:11px}#metrics{font-size:10px;line-height:1.8;display:block}#diagnostics small{color:#8a9285;margin-top:5px;font-size:9px;display:block}#toast{color:#fff;z-index:10;background:#173c43e8;border-radius:3px;padding:12px 20px;font-size:12px;position:absolute;bottom:80px;left:50%;transform:translate(-50%)}#panel-open,#panel-close{display:none}dialog{border:1px solid var(--line);background:var(--paper);width:calc(100% - 40px);max-width:820px;max-height:85dvh;color:var(--ink);border-radius:5px;padding:36px 42px;box-shadow:0 20px 80px #0d2d3550}dialog::backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#173c4366}.dialog-close{font-size:28px;position:absolute;top:12px;right:18px}dialog h2{letter-spacing:2px;margin:18px 0;font-family:SimSun,serif;font-size:30px;font-weight:400}dialog p{color:#728074;font-size:12px;line-height:2}dialog h3{font-size:14px;font-weight:500}.source-grid{grid-template-columns:1fr 1fr;gap:25px;margin-top:26px;display:grid}.source-grid article{border-top:1px solid var(--line);padding-top:18px}.sources{padding-left:20px;font-size:12px;line-height:1.8}.sources li{margin:12px 0}.sources a{text-underline-offset:3px;text-decoration:underline}.sources span{color:#84917d;font-size:10px;display:block}.downloads{border-top:1px solid var(--line);flex-wrap:wrap;gap:10px;margin-top:22px;padding-top:20px;display:flex}.downloads a{background:#e5e9de;border-radius:3px;padding:12px;font-size:11px}@media (width<=1050px){.masthead{gap:12px;padding:0 22px}.modes button{padding:11px 16px}main{grid-template-columns:260px minmax(0,1fr)}#panel{padding:24px 21px}h1{font-size:28px}.facts{gap:20px}.brand small{letter-spacing:1px;font-size:7px}}@media (width<=720px){.masthead{grid-template-columns:1fr auto;gap:12px;height:116px;padding:13px 18px 10px;display:grid}.brand{letter-spacing:4px;gap:10px;font-size:21px}.seal{width:29px;height:36px;font-size:13px;line-height:15px}.brand small{letter-spacing:1px;margin-top:4px;font-size:7px}.modes{grid-area:2/1/auto/-1;gap:4px;width:100%;padding:3px}.modes button{flex:1;padding:9px 6px;font-size:11px}.masthead>.text-button{font-size:11px}.masthead>.text-button span{margin-left:5px}main{height:calc(100dvh - 116px);min-height:380px;display:block}#viewport{height:100%}#panel{z-index:9;width:285px;max-width:86vw;padding:20px 22px;transition:transform .25s;position:absolute;top:116px;bottom:0;left:0;transform:translate(-105%);box-shadow:5px 0 30px #173c4330}body.panel-open #panel{transform:translate(0)}#panel-close{font-size:24px;line-height:16px;display:block}#panel-open{background:#f8f8efdc;border:1px solid #fff9;border-radius:3px;align-items:center;gap:7px;padding:9px 12px;font-size:18px;display:flex;position:absolute;top:51px;left:17px}#panel-open span{font-size:11px}.view-label{gap:7px;font-size:10px;top:22px;left:18px}.toolbar{padding:4px;top:52px;right:13px}.toolbar button{width:31px;height:32px;font-size:22px}.bottom-bar{align-items:end;bottom:15px;left:17px;right:16px}.bottom-bar>div{gap:8px;max-width:210px}.north{width:28px;height:28px}#interaction-hint{font-size:9px;line-height:1.5}.bottom-bar button{padding:8px;font-size:9px}#diagnostics{bottom:64px;right:15px}.source-grid{grid-template-columns:1fr;gap:10px}dialog{width:calc(100% - 24px);padding:30px 22px}dialog h2{font-size:25px}#toast{text-align:center;width:max-content;max-width:90%}h1{font-size:27px}.facts{margin:18px 0 22px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}