:root{color-scheme:light;--paper:#f2f0e5;--ink:#2f4a40;--muted:#737e6d;--line:#d5d9cb;--jade:#426b5b;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--paper);color:var(--ink);user-select:none;-webkit-user-select:none}button{font:inherit}button:focus-visible,canvas:focus-visible{outline:2px solid var(--jade);outline-offset:4px}button{cursor:pointer}button:disabled{cursor:wait;opacity:.45}#viewer{position:relative;width:100%;height:100%;height:100dvh}#scene{display:block;width:100%;height:100%;touch-action:none;outline:none;cursor:grab}#scene:active{cursor:grabbing}.masthead{position:absolute;top:40px;left:44px;display:grid;grid-template-columns:auto auto;column-gap:17px;align-items:center;pointer-events:none}.seal{display:grid;place-items:center;width:36px;height:42px;border:1px solid #9b5748;border-radius:2px;color:#9b5748;font:25px "Songti SC","STSong",serif}h1{font:500 48px/1.2 "Songti SC","STSong",serif;letter-spacing:10px;margin:0}.subtitle{grid-column:2;font:14px "Songti SC","STSong",serif;letter-spacing:3px;margin:13px 0 0;color:var(--muted)}.edition{position:absolute;right:44px;top:45px;display:flex;align-items:center;gap:16px;font-size:11px;letter-spacing:2px;color:var(--muted);pointer-events:none}.edition i{height:1px;width:36px;background:#b3bcac}.toolbar{position:absolute;bottom:62px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:5px;padding:7px;border:1px solid rgba(255,255,255,.72);border-radius:22px;background:linear-gradient(135deg,rgba(255,255,255,.46),rgba(255,255,255,.16) 48%,rgba(218,235,222,.24));box-shadow:0 12px 34px rgba(42,66,54,.13),0 2px 6px rgba(42,66,54,.06),inset 0 1px 1px rgba(255,255,255,.95),inset 0 -1px 2px rgba(83,119,99,.16);-webkit-backdrop-filter:blur(18px) saturate(170%) brightness(1.08);backdrop-filter:blur(18px) saturate(170%) brightness(1.08);isolation:isolate;white-space:nowrap}
.toolbar::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:radial-gradient(ellipse at 12% 0,rgba(255,255,255,.76),transparent 56%),radial-gradient(ellipse at 95% 100%,rgba(255,255,255,.48),transparent 46%);box-shadow:inset 1px 0 1px rgba(255,255,255,.65),inset -1px 0 1px rgba(255,255,255,.48)}
.toolbar>*{position:relative;z-index:1}
.toolbar button{height:40px;border:0;background:transparent;color:var(--ink);border-radius:15px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:12px;transition:background .15s,color .15s,box-shadow .15s}
.toolbar button:hover:not(:disabled){background:rgba(255,255,255,.48);color:var(--ink);box-shadow:inset 0 1px 1px rgba(255,255,255,.8),0 2px 5px rgba(42,66,54,.05)}
.toolbar button.selected,.toolbar button[aria-pressed=true]{background:linear-gradient(145deg,rgba(66,107,91,.94),rgba(47,74,64,.91));color:#fff;box-shadow:inset 0 1px 1px rgba(255,255,255,.34),inset 0 -1px 1px rgba(25,51,40,.18),0 3px 8px rgba(42,66,54,.16)}
.toolbar button svg{width:18px;height:18px}.views{display:flex;gap:3px}.divider{width:1px;height:21px;background:var(--line);margin:0 5px}footer{position:absolute;bottom:22px;left:44px;right:44px;display:flex;justify-content:space-between;gap:15px;color:var(--muted);font-size:11px;letter-spacing:1px;pointer-events:none}footer p{margin:0}footer span{margin:0 9px}.footnote{font-family:"Songti SC","STSong",serif}.touch-help{display:none}#loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:var(--paper);z-index:10;transition:opacity .35s}#loading.done{opacity:0;pointer-events:none}.loading-mark{font:48px "Songti SC",serif;color:var(--jade)}#loading p{font-size:13px;letter-spacing:2px;color:var(--muted)}progress{height:3px;width:160px;appearance:none;border:0;border-radius:2px;overflow:hidden;background:#dce0d4}progress::-webkit-progress-bar{background:#dce0d4}progress::-webkit-progress-value{background:var(--jade)}progress::-moz-progress-bar{background:var(--jade)}#retry{border:1px solid var(--line);color:var(--ink);padding:8px 18px;border-radius:8px;background:#fff;margin-top:12px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:700px){.masthead{top:26px;left:23px;column-gap:12px}.seal{width:30px;height:36px;font-size:21px}h1{font-size:36px;letter-spacing:7px}.subtitle{font-size:12px;letter-spacing:2px;margin-top:9px}.edition{right:23px;top:31px}.edition span:first-child,.edition i{display:none}.edition span{font-size:9px;letter-spacing:1px}.toolbar{bottom:71px;padding:6px;gap:1px}.toolbar button{padding:0 12px;font-size:11px;height:39px}.divider{margin:0 3px}footer{left:20px;right:20px;bottom:22px;display:block;text-align:center;font-size:10px}footer .footnote{margin-top:9px;font-size:9px;opacity:.75}}
@media(pointer:coarse){.mouse-help{display:none}.touch-help{display:block}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}