:root{color-scheme:light;--ink:#10292c;--muted:#637475;--paper:#f4f3ee;--line:#d7dcd5;--gold:#bca16b}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft Yahei",system-ui,sans-serif;font-size:16px}button,input,select{font:inherit}button,a,summary{touch-action:manipulation}button,summary{cursor:pointer}button{border:1px solid var(--line);background:white;color:var(--ink);border-radius:9px;padding:12px 17px}button:hover{background:#e8eeea}button:disabled{opacity:.4;cursor:default}a{color:inherit}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #bc8e43;outline-offset:3px}header{height:88px;display:flex;align-items:center;justify-content:space-between;max-width:1480px;margin:auto;padding:0 36px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:15px;text-decoration:none;font-weight:650;letter-spacing:.04em;font-size:19px}.brand small{display:block;font-size:10px;letter-spacing:.12em;font-weight:400;margin-top:5px;color:var(--muted)}.mark{font-family:Georgia,serif;font-size:38px;border-right:1px solid var(--line);padding-right:18px;line-height:1}#menu{display:none}.layout{max-width:1480px;margin:auto;display:grid;grid-template-columns:330px 1fr}aside{border-right:1px solid var(--line);position:sticky;top:0;height:calc(100dvh - 130px);overflow:auto;padding:30px 22px 18px 36px}.eyebrow{font-size:11px;letter-spacing:.1em;font-weight:650;color:var(--muted)}.aside-head h2{font-size:17px;font-weight:550;margin:10px 0 22px}.search{display:flex;gap:10px;align-items:center;border-bottom:1px solid #a9b5b0;padding-bottom:10px}.search span,.filter{font-size:12px;color:var(--muted)}input{width:100%;background:none;border:0;min-width:0;font-size:13px;color:var(--ink);padding:5px 0}.filter{display:flex;align-items:center;justify-content:space-between;margin:15px 0 20px;gap:12px}select{border:1px solid var(--line);padding:7px;background:#fff;color:var(--ink);border-radius:5px;max-width:100%}.filter select{font-size:12px;width:160px}.group-label{font-size:12px;font-weight:650;color:var(--muted);margin:24px 0 8px;padding-left:9px}#catalog button{display:flex;text-align:left;width:100%;gap:12px;border:0;border-radius:6px;background:none;align-items:center;padding:11px 9px;font-size:13px;line-height:1.6}#catalog button:hover{background:#e4e9e3}#catalog button.active{background:var(--ink);color:#fff}.num{font-family:Georgia,serif;flex:0 0 26px;font-size:16px;color:#8b9c94}.active .num{color:#d8c392}.intro-num{font-size:12px}.aside-note{font-size:11px;color:var(--muted);line-height:1.8;margin:25px 9px}main{min-width:0;padding:40px 56px 175px}.welcome{border-bottom:1px solid var(--line);padding-bottom:30px;margin-bottom:32px;display:none}.welcome h1{font-family:Georgia,"Songti SC",serif;font-size:42px;line-height:1.35;font-weight:500;letter-spacing:.02em;margin:12px 0}.welcome p{color:var(--muted);font-size:15px;line-height:1.9;max-width:500px}body.introduction .welcome{display:block}.object-head{display:grid;grid-template-columns:1fr 230px;gap:35px;align-items:center;padding-bottom:32px;border-bottom:1px solid var(--line);margin-bottom:28px}.object-head h1{font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:34px;font-weight:550;line-height:1.45;margin:12px 0}.english{font-size:13px;color:var(--muted);line-height:1.7;margin:0 0 16px}.metadata{display:flex;flex-wrap:wrap;gap:8px}.metadata span{font-size:11px;padding:5px 9px;background:#e6eae3;border-radius:4px}.object-image{background:#e4e6e0;border-radius:5px;overflow:hidden;aspect-ratio:1}.object-image img{display:block;width:100%;height:100%;object-fit:contain}.section{margin:30px 0}.section h2{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:650;margin:0 0 12px}.section p{font-size:18px;line-height:2.05;font-weight:400;margin:0;max-width:780px;letter-spacing:.01em}.section.observation{border-left:3px solid var(--gold);padding:0 0 0 20px}.section.active h2{color:#997739}.source{margin-top:30px;font-size:12px;color:var(--muted)}.chapter-nav{display:flex;justify-content:space-between;margin:35px 0;padding-top:24px;border-top:1px solid var(--line)}footer{max-width:780px;color:var(--muted);font-size:11px;line-height:1.9}footer a{font-size:12px}.empty{font-size:13px;color:var(--muted);line-height:1.8;padding:15px 8px}@media(min-width:1500px){main{padding-left:70px;padding-right:70px}}@media(max-width:1050px){.layout{grid-template-columns:270px 1fr}aside{padding-left:24px}main{padding:32px 30px 175px}.object-head{grid-template-columns:1fr 160px;gap:20px}.object-head h1{font-size:28px}.section p{font-size:17px}}@media(max-width:760px){header{height:76px;padding:0 20px}.brand{font-size:16px;gap:10px}.brand small{font-size:8px}.mark{font-size:32px;padding-right:10px}#menu{display:block;font-size:12px;padding:10px;border:0;background:none}.layout{display:block}aside{display:none;position:fixed;top:76px;left:0;right:0;bottom:135px;height:auto;border:0;background:var(--paper);z-index:15;padding:22px 24px}body.menu-open aside{display:block}main{padding:24px 22px 175px}.welcome{padding-bottom:25px;margin-bottom:26px}.welcome h1{font-size:34px}.welcome p{font-size:14px}.object-head{grid-template-columns:1fr 112px;gap:18px;align-items:start;padding-bottom:25px}.object-head h1{font-size:25px;margin:10px 0}.english{font-size:11px}.metadata span{font-size:10px;padding:4px 6px}.object-head .eyebrow{font-size:10px}.object-image{margin-top:12px}.section p{font-size:17px;line-height:2}.chapter-nav button{font-size:14px}}@media(prefers-reduced-motion:no-preference){button{transition:background .15s}}


#menu{display:block;font-size:13px}header{position:sticky;top:0;z-index:30;background:var(--paper)}#directory{top:88px;height:calc(100dvh - 148px)}#directory .catalog-group{margin-bottom:12px}.catalog-link{display:flex;gap:12px;padding:11px 9px;text-decoration:none;font-size:13px;line-height:1.6;border-radius:6px}.catalog-link:hover{background:#e4e9e3}.catalog-link.active{background:var(--ink);color:white}.catalog-link.active .num{color:#d8c392}.catalog-link[hidden],.catalog-group[hidden]{display:none}.directory-hidden .layout{grid-template-columns:1fr}.directory-hidden #directory{display:none}.object-head{display:block}.object-head h1{font-size:34px}article{max-width:850px}article p{font-size:18px;line-height:2.05;max-width:800px;margin:0 0 22px}article h2{font-size:25px;line-height:1.6;margin:30px 0 18px;font-weight:550}article h3{font-size:19px;line-height:1.65;margin:25px 0 14px}article li{line-height:1.9;font-size:16px;margin:8px 0}.refs{font-size:11px;color:var(--muted);margin:-10px 0 24px}.refs a{margin-right:8px}.read-note,.notice,.editorial{font-size:13px;line-height:1.9;padding:16px 20px;border-left:3px solid var(--gold);background:#e8ece4;margin:22px 0}.read-note p,.notice p,.editorial p{font-size:14px}.look,.exercise,.question{padding:18px 22px;background:#e8ece4;border-left:3px solid var(--gold);margin:24px 0}.look p,.exercise p,.question p{font-size:16px;margin:8px 0}.exercise{position:static;height:auto;border:0;overflow:visible;display:block}.exercise small,.small,small{font-size:12px;color:var(--muted)}.exercise h3{margin-top:0}.chapter-nav a,.chapter-nav>span{border:1px solid var(--line);background:white;border-radius:9px;padding:12px 17px;text-decoration:none;max-width:47%;font-size:14px;line-height:1.6}.chapter-nav a:hover{background:#e8eeea}.chapter-nav>span{opacity:.4}.chapter-nav small{display:block;font-size:11px;color:var(--muted)}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.facts article{padding:16px;background:#e8ece4}.facts h3{margin:8px 0}.facts p{font-size:14px}.source-line{font-size:12px!important;color:var(--muted);line-height:1.9!important}.route-grid{display:grid;grid-template-columns:1fr;gap:15px}.map svg{width:100%;max-width:650px;height:auto}.maptext{font-family:system-ui,sans-serif;font-size:18px}.map small{display:block}.route-note li span{color:var(--muted);margin-left:10px}.timeline>div{border-left:2px solid var(--gold);padding:0 0 10px 20px}.timeline p{font-size:16px}.table-scroll{overflow:auto}table{border-collapse:collapse;min-width:620px;width:100%;font-size:14px}th,td{padding:12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:#e8ece4}.place{border-top:1px solid var(--line);padding:15px 0}.status{font-size:12px;color:var(--muted);line-height:1.7}.place p{font-size:17px;margin-top:12px}.extra,.correction{padding:15px 0;border-bottom:1px solid var(--line)}.extra summary,.correction summary{font-size:16px;font-weight:550;line-height:1.8}.extra p{font-size:17px}.extra-audio{margin:24px 0;padding:18px;background:#e8ece4;font-size:13px}.extra-audio strong{display:block;margin-bottom:10px}.extra-audio audio{display:block;max-width:100%;width:520px}.extra-audio a{display:inline-block;margin-top:10px}.reading li p{font-size:17px}.links{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;margin:24px 0}.links a{line-height:1.9}footer{margin-top:34px;border-top:1px solid var(--line);padding-top:18px;font-size:12px}footer details{margin:20px 0}footer summary{font-size:14px;font-weight:600;padding:12px 0}footer li{margin:10px 0;overflow-wrap:anywhere}footer p{font-size:12px;line-height:1.9}footer a{font-size:12px}.source-subhead{font-weight:600;list-style:none;margin-top:24px}.player{position:fixed;inset:auto 0 0;background:#10292cf5;color:#f7f6ef;z-index:40;border-top:1px solid #ffffff12;padding-bottom:env(safe-area-inset-bottom)}.player-inner{max-width:1080px;margin:auto;display:flex;align-items:center;gap:14px;padding:8px 24px;min-height:60px}.player .primary{flex:0 0 44px;width:44px;height:44px;padding:0;border:0;border-radius:50%;background:transparent;color:#e8d5a5;font-size:22px;line-height:1}.player .primary:hover{background:#ffffff12}.timeline-control{display:flex;align-items:center;gap:12px;flex:1;min-width:0;font-size:11px;color:#b6c3bc}.timeline-control input{flex:1;width:100%;height:44px;padding:0;accent-color:#e8d5a5;min-width:0}.timeline-control span{font-variant-numeric:tabular-nums;min-width:30px;text-align:center}.dock-label{font-size:11px;color:#b6c3bc;max-width:160px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dock-download{color:#e8d5a5;font-size:20px;text-decoration:none;padding:8px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}#audio{display:none}main{padding-bottom:110px}.empty{margin:16px 8px}.empty[hidden]{display:none}@media(max-width:1050px){.object-head h1{font-size:28px}.facts{grid-template-columns:1fr}.facts h3{font-size:19px}}@media(max-width:760px){header{height:76px;position:sticky}#directory{top:76px;bottom:calc(56px + env(safe-area-inset-bottom));height:auto}body.menu-open #directory{display:block}.directory-hidden #directory{display:none}.object-head h1{font-size:26px}.brand{font-size:15px;gap:10px}.brand small{font-size:11px;letter-spacing:0}article p{font-size:17px;line-height:2}.player-inner{min-height:56px;padding:6px 16px;gap:8px}.timeline-control{gap:8px}.dock-label{display:none}.chapter-nav a,.chapter-nav>span{font-size:13px;padding:10px 12px}main{padding-bottom:calc(90px + env(safe-area-inset-bottom))}article h2{font-size:23px}.facts{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
article aside{position:static;height:auto;max-height:none;overflow:visible;display:block;border-right:0}.player.text-only .primary,.player.text-only .timeline-control{display:none}.player.text-only .dock-label{display:block;max-width:none}.player.text-only .player-inner{justify-content:center}
/* Phone layouts: compact header and readable content, without horizontal clipping. */
header{gap:12px}header .brand{min-width:0;align-items:center}header .brand>span:last-child{min-width:0;overflow-wrap:anywhere}header #menu{flex-shrink:0;min-height:44px;white-space:nowrap}article,footer,.object-head>div{min-width:0}article,footer{overflow-wrap:anywhere}img,svg{max-width:100%}#directory{overscroll-behavior:contain}header{position:sticky;top:0;z-index:30;background:var(--paper)}
@media(max-width:760px){header{padding-inline:16px}.brand>span:last-child{font-size:15px;line-height:1.4}.brand small{font-size:10px;letter-spacing:0}#menu{padding:8px;font-size:12px!important}.chapter-nav{gap:12px}.chapter-nav>*{min-width:0}.object-head{grid-template-columns:minmax(0,1fr) 104px;gap:14px}}
@media(max-width:380px){header{padding-inline:12px;gap:8px}.brand{gap:7px}.brand>span:last-child{font-size:14px}.brand small{font-size:10px!important}.museum-logo{width:36px;height:36px}.nam-logo{width:46px!important;flex-shrink:0}.object-head{grid-template-columns:minmax(0,1fr) 88px;gap:12px}.object-head h1,.object-head h2{font-size:24px}main{padding-inline:18px}.review-panel dl{grid-template-columns:1fr}.review-panel dd{margin-bottom:10px}.metadata span{max-width:100%;overflow-wrap:anywhere}}
@media(max-height:480px) and (orientation:landscape){header{height:60px}#directory{top:60px}.player-inner{height:52px}}

.object-head{display:block}