@font-face{font-family:Song;src:url(/qingmingshanghetu/fonts/song.woff2) format("woff2");font-display:swap}:root{--ink:#233e3a;--ink-soft:#5c7069;--paper:#f4efdf;--muted:#c4c7b9;--red:#a54e38;--line:rgba(42,66,56,.19);--serif:Song,"Songti SC","Noto Serif SC",serif}*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{color:var(--ink);background:#d4d8cb;font-family:var(--serif);font-size:14px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{border:0;background:none;color:inherit;cursor:pointer}button:disabled{opacity:.4;cursor:wait}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--red);outline-offset:5px}a{color:inherit}button{transition:color .2s,background .2s,opacity .25s,transform .2s}button:hover{color:var(--red)}[hidden]{display:none!important}#viewport{position:absolute;inset:0;touch-action:none;background:#131f1e}#viewport canvas{display:block;width:100%;height:100%;outline:none}#viewport.portrait{width:min(100vw,56.25vh);height:100vh;left:50%;transform:translate(-50%)}.vignette{pointer-events:none;position:absolute;inset:0;background:linear-gradient(180deg,rgba(225,231,219,.72),transparent 16%,transparent 71%,rgba(15,34,30,.72)),linear-gradient(90deg,rgba(218,224,209,.2),transparent 31%);opacity:.9}#interface{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity 1.3s}body.ready #interface{opacity:1}#interface button,#interface a,#interface input,#interface canvas{pointer-events:auto}.topbar{position:absolute;top:30px;left:42px;right:42px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:15px;text-align:left;padding:0}.seal{font-size:22px;line-height:1.14;color:#f7eddb;background:var(--red);padding:5px 8px;outline:1px solid #b06e59;outline-offset:3px;transform:rotate(-2deg);box-shadow:inset 0 0 0 1px #e9cbb2}.brand-text{font-size:31px;letter-spacing:8px;line-height:1.2}.brand-text small{display:block;font-family:var(--serif);font-size:10px;letter-spacing:3px;margin-top:7px;color:#4d655b}.top-actions{display:flex;align-items:center;gap:15px}.live-label{font-family:var(--serif);font-size:11px;letter-spacing:1.5px;display:flex;align-items:center;gap:8px;margin-right:15px}.live-label i,.map-footer i{height:5px;width:5px;border-radius:50%;background:#496954;box-shadow:0 0 0 3px #57795318}.text-button{display:flex;gap:8px;align-items:center;font-size:12px;letter-spacing:1px;padding:9px}.icon{display:inline-flex;width:18px;height:18px;flex-shrink:0;vertical-align:middle}.icon svg{width:100%;height:100%;stroke-width:1.4;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round}.icon-button{display:grid;place-items:center;width:36px;height:36px;border:1px solid #415b4226;border-radius:50%}.icon-button:hover{background:#f4efdf66}.icon-button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.intro{position:absolute;top:21%;left:6%;transition:opacity .7s,transform .7s;text-shadow:0 2px 30px #e6e9d6}.eyebrow{display:flex;align-items:center;gap:10px;font-size:10px;letter-spacing:4px;color:var(--ink-soft)}.eyebrow>span{height:1px;width:24px;background:#6e806e}.intro h1{font-weight:400;font-size:clamp(38px,4.4vw,68px);line-height:1.4;letter-spacing:9px;margin:19px 0 18px}.intro h1 span{display:block;padding-left:1.1em}.intro p{color:#526359;line-height:2.1;font-size:12px;letter-spacing:2px;padding-left:4px}.primary-button{margin-top:19px;background:var(--ink);color:var(--paper);height:45px;padding:0 20px;display:flex;align-items:center;gap:16px;border:1px solid #34524b;box-shadow:0 4px 22px #203b2b14;letter-spacing:2px;font-size:12px}.primary-button:hover{background:#36554b;color:var(--paper);transform:translateY(-2px)}.primary-button .icon{height:13px;width:13px}.button-meta{color:#bcc5b3;font-size:10px;border-left:1px solid #6a7d6e;padding-left:17px;margin-left:13px}.exploring .intro{opacity:0;transform:translateY(-12px);pointer-events:none}.exploring .intro button{pointer-events:none!important}.map-panel{position:absolute;right:42px;top:144px;width:160px;padding:12px 14px 9px;border:1px solid #4c625522;background:#eaeddf99;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.map-heading{display:flex;justify-content:space-between;font-size:11px;letter-spacing:2px}.map-heading small{font-size:8px;opacity:.6;display:flex;gap:5px}.map-panel canvas{width:132px;height:146px;display:block;cursor:crosshair;opacity:.88}.map-footer{display:flex;gap:7px;align-items:center;border-top:1px solid var(--line);padding-top:9px;font-size:9px;white-space:nowrap;letter-spacing:.5px}.view-tools{position:absolute;right:42px;top:51%;display:flex;align-items:center;flex-direction:column;border:1px solid #f4efdf30;background:#203a326a;color:var(--paper);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:5px}.view-tools button{width:32px;height:33px;font-family:serif;font-size:21px;display:grid;place-items:center}.view-tools button:hover{color:#e5b984;background:#d0d8b515}.view-tools>span{height:1px;background:#f5efdf26;width:21px;margin:4px 0}.view-tools .icon{height:16px;width:16px}.scene-caption{position:absolute;bottom:185px;left:43px;display:flex;align-items:center;gap:16px;color:#f4efdf;text-shadow:0 1px 20px #1d302b80}.scene-caption>span{writing-mode:vertical-rl;font-size:11px;border:1px solid #e8e6d369;width:23px;padding:8px 3px;letter-spacing:2px}.scene-caption h2{font-size:23px;letter-spacing:5px;font-weight:400;margin:0 0 6px}.scene-caption p{font-size:10px;letter-spacing:2px;margin:0;color:#d1d9c7}.bottom-panel{position:absolute;bottom:20px;left:42px;right:42px;color:var(--paper)}.controls-hint{display:flex;align-items:center;justify-content:center;gap:11px;font-family:var(--serif);font-size:10px;letter-spacing:1px;color:#e1e4d3;opacity:.87;margin-bottom:20px}.controls-hint b{font-weight:400;opacity:.4}.mouse-symbol{width:10px;height:14px;display:inline-block;border:1px solid #d9e2d1;border-radius:5px;position:relative}.mouse-symbol:after{content:"";position:absolute;height:3px;top:2px;left:4px;border-left:1px solid #d9e2d1}.hint-key{border:1px solid #d1d9c43b;padding:2px 4px;font-size:8px;margin-left:15px}.journey-bar{height:78px;background:#f1efdfed;color:var(--ink);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);display:flex;align-items:stretch;border-top:1px solid #faf8ed;box-shadow:0 12px 32px #0d262b1a}.journey-label{display:flex;flex-direction:column;justify-content:center;margin:16px 0;padding:0 26px;border-right:1px solid #62785f30;min-width:119px}.journey-label>span{font-size:17px;letter-spacing:6px}.journey-label small{font-size:8px;letter-spacing:2px;margin-top:6px;color:#78816f}#chapters{display:flex;flex:1;align-items:stretch;padding:0 10px}.chapter{position:relative;flex:1;display:flex;align-items:center;justify-content:center;gap:10px;padding:10px 14px;white-space:nowrap}.chapter small{font-family:Georgia,serif;color:#8d9784;font-size:10px;font-style:italic}.chapter>span{font-size:13px;letter-spacing:2px}.chapter i{position:absolute;bottom:0;height:2px;width:0;background:var(--red);transition:width .5s}.chapter.active{color:var(--red)}.chapter.active i{width:55%}.chapter.active small{color:var(--red)}.chapter:hover{background:#adbd9a14}.tour-button{border-left:1px solid #62785f30;margin:17px 0;padding:0 25px;display:flex;align-items:center;gap:12px;letter-spacing:2px;font-size:12px}.tour-button .icon{height:14px;width:14px}.tour-button small{font-size:9px;color:#78816f;letter-spacing:0}.tour-button.playing{color:var(--red)}.bottom-meta{display:flex;gap:25px;align-items:center;padding-top:13px;color:#d5ddcb99;font-size:9px;letter-spacing:1px}.bottom-meta>span{margin-right:auto}.bottom-meta button{font-size:10px;color:#e5e8daaa;padding:0}.bottom-meta button:hover{color:#fff}.bottom-meta button span{margin-left:5px;color:#c8d0b6}.hotspot{position:absolute;display:flex;align-items:center;gap:7px;white-space:nowrap;transform:translate(-50%,-50%);padding:4px;filter:drop-shadow(0 1px 6px #2031244a);opacity:0;transition:opacity .6s;color:#f4eed6;font-size:10px;letter-spacing:2px;pointer-events:auto}.hotspot i{width:19px;height:19px;border:1px solid #faf1d285;border-radius:50%;display:grid;place-items:center;box-shadow:0 0 0 4px #ddd8b517}.hotspot i:after{content:"";width:4px;height:4px;background:#fff2cc;border-radius:50%}.hotspot:hover i{background:var(--red);transform:scale(1.1)}.hotspot span{background:#273e3380;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);padding:5px 8px;border-left:1px solid #e0cfad70}.hotspot.visible{opacity:1}.hotspot:not(.visible){pointer-events:none!important}.ui-hidden #interface,.ui-hidden .vignette{opacity:0;pointer-events:none}.ui-hidden #interface *{pointer-events:none!important}#restore-ui{position:fixed;bottom:22px;right:24px;background:#1d3939aa;color:#e2e7d5;padding:9px 13px;font-size:10px;opacity:.6;border:1px solid #d1d5c533;z-index:5}#restore-ui kbd{border:1px solid #d1d5c533;margin-left:9px;padding:2px 4px;font-size:9px}.recording #restore-ui{display:none}#tour-progress{position:absolute;bottom:0;height:2px;width:100%;background:#efe5c52b;pointer-events:none}#tour-progress i{display:block;height:100%;width:0;background:#ba9170}#toast{position:fixed;left:50%;top:110px;transform:translate(-50%,-10px);padding:12px 22px;background:#18332feb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:#e8eadb;font-size:12px;letter-spacing:1px;z-index:80;opacity:0;transition:opacity .3s,transform .3s;pointer-events:none;max-width:85vw;text-align:center}#toast.show{opacity:1;transform:translate(-50%)}#shot-fade{position:absolute;inset:0;background:#d9dbc9;opacity:0;pointer-events:none;z-index:2}#loading{position:absolute;inset:0;z-index:100;background:#e8e5d8;display:flex;align-items:center;justify-content:center;flex-direction:column;transition:opacity 1.3s,visibility 1.3s;background-image:radial-gradient(ellipse at 50% 40%,#f7f4e9,transparent 60%)}body.ready #loading{opacity:0;visibility:hidden;pointer-events:none}.loading-art{display:flex;gap:30px;font-size:75px;letter-spacing:12px;color:var(--ink);line-height:1.3}.loading-art span:last-child{padding-top:30px}.loading-rule{width:1px;height:40px;background:#ad8e71;margin:20px 0}#loading p{font-size:13px;letter-spacing:6px;color:#6c7562}#loading small{font-size:10px;letter-spacing:2px;margin-top:25px;color:#87907b}.loading-track{width:200px;height:1px;background:#b2b5a24a;margin:19px 0 8px}.loading-track i{display:block;width:0;height:1px;background:var(--red);transition:width .5s}#loading-percent{font:italic 11px Georgia;color:#8d957f}#load-error{max-width:500px;text-align:center;padding:20px;line-height:1.8;color:var(--red)}dialog{border:1px solid #dadbca;color:var(--ink);background:#f1eedfee;padding:38px;-webkit-backdrop-filter:blur(30px);backdrop-filter:blur(30px);box-shadow:0 20px 100px #16252044;max-height:90vh;overflow:auto}dialog::backdrop{background:#132b2233}dialog h2{font-size:30px;font-weight:400;letter-spacing:5px;margin:15px 0 25px}dialog p{font-size:12px;line-height:2;color:#677361;letter-spacing:1px}dialog>.eyebrow{font-size:10px;letter-spacing:3px}.side-dialog{margin-right:28px;width:360px;padding:38px 28px}.close-button{position:absolute;right:16px;top:12px;font-size:24px;font-weight:300;color:#71816d}.setting-label{display:flex;justify-content:space-between;font-size:11px;letter-spacing:1px;margin:27px 0 13px}.setting-label span{font-size:10px;color:#88917d}.segmented{display:flex;border:1px solid var(--line);padding:3px}.segmented button{flex:1;padding:9px;font-size:12px}.segmented .active{background:var(--ink);color:var(--paper)}select{width:100%;border:1px solid var(--line);border-radius:0;color:var(--ink);padding:12px 8px;font-size:11px;background:transparent;appearance:auto}.toggle-row{display:flex;justify-content:space-between;align-items:center;margin:25px 0;font-size:12px;letter-spacing:1px;cursor:pointer}.toggle-row input{position:absolute;opacity:0}.switch{width:30px;height:16px;border-radius:20px;background:#bbc2ad;position:relative;transition:background .2s}.switch:after{content:"";position:absolute;width:10px;height:10px;left:3px;top:3px;background:#f6f3e6;border-radius:50%;transition:left .2s}.toggle-row input:checked+.switch{background:#56766a}.toggle-row input:checked+.switch:after{left:17px}.toggle-row input:focus-visible+.switch{outline:2px solid var(--red);outline-offset:3px}.diagnostics{margin-top:25px;padding-top:24px;border-top:1px solid var(--line)}.diagnostics>span{font-size:10px;letter-spacing:2px}.diagnostics strong{display:block;font:11px/1.8 monospace;margin-top:9px;color:#455c4c}.diagnostics p{font-size:10px;color:#8a927f;line-height:1.8}.wide-dialog{width:min(1100px,92vw);padding:45px}.dialog-heading p{font-size:10px;margin-top:-10px}.scroll-window{margin:30px -45px 20px;overflow-x:auto;overflow-y:hidden;background:#6b5d42;scrollbar-color:#9b8d6b #c3b48f;scrollbar-width:thin;max-height:49vh}.scroll-window img{display:block;max-width:none;height:min(38vh,340px);width:auto}.reference-note{display:grid;grid-template-columns:1fr auto;gap:14px}.reference-note>span{font-size:10px;letter-spacing:2px;color:#9b917b;grid-column:1/-1}.reference-note p{max-width:700px;font-size:11px;margin:0}.reference-note a{align-self:end;font-size:11px;text-underline-offset:4px}.about-lead{font-size:16px!important;color:var(--ink)!important}.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin:45px 0}.about-grid article{border-top:1px solid var(--line);padding-top:20px}.about-grid article>span{font-size:10px;letter-spacing:2px;color:#91997f}.about-grid h3{font-size:19px;font-weight:400;letter-spacing:3px;margin:16px 0 12px}.about-grid p{font-size:11px}.source-note{padding-top:18px;border-top:1px solid var(--line);font-size:10px!important;opacity:.7}.panel-action{display:flex;align-items:center;justify-content:space-between;margin-top:18px;width:100%;padding:15px 12px;border:1px solid var(--line);font-size:12px;letter-spacing:1px}.panel-action span{font-size:10px;letter-spacing:0}.panel-action.accent{background:var(--ink);color:var(--paper)}.panel-action.accent:hover{background:#38574a}.capture-note{font-size:10px!important;margin-top:25px;opacity:.8}#record-status{font-size:12px;color:var(--red);line-height:1.8}#detail-content img{width:100%;margin-bottom:12px}#detail-content p{font-size:12px}#detail-content ul{font-size:11px;line-height:2.2;padding-left:17px;color:#6e7b66}@media(min-width:1700px){.intro{left:7%;top:24%}.topbar{top:40px;left:55px;right:55px}.bottom-panel{left:55px;right:55px;bottom:30px}.scene-caption{left:55px;bottom:195px}.map-panel{right:55px;top:165px}}@media(max-width:1100px){.topbar{left:26px;right:26px;top:24px}.bottom-panel{left:26px;right:26px}.intro{left:5%;top:22%}.intro h1{font-size:44px;letter-spacing:6px}.chapter{padding:10px 6px;gap:5px}.chapter>span{font-size:12px;letter-spacing:1px}.journey-label{padding:0 15px;min-width:92px}.tour-button{padding:0 17px;gap:7px}.tour-button small{display:none}.map-panel{right:26px;width:142px;top:128px;padding:12px 10px}.map-panel canvas{width:120px;height:133px}.scene-caption{left:26px}.view-tools{right:26px}.brand-text{font-size:27px}.live-label{display:none}}@media(max-width:700px){.topbar{left:22px;right:18px;top:24px}.brand{gap:12px}.seal{font-size:18px;padding:4px 6px}.brand-text{font-size:24px;letter-spacing:5px}.brand-text small{font-size:8px;letter-spacing:1px}.top-actions{gap:6px}.top-actions .text-button{padding:6px}.text-button>span:last-child{display:none}.icon-button{width:31px;height:31px}#fullscreen{display:grid}.intro{top:19%;left:8%;text-shadow:0 1px 25px #e8e6ce}.intro h1{font-size:40px;letter-spacing:7px}.intro .eyebrow{font-size:8px;letter-spacing:3px}.intro p{font-size:10px;line-height:2.1}.primary-button{height:40px;font-size:10px;padding:0 15px;gap:10px}.map-panel{display:none}.view-tools{right:18px;top:50%}.scene-caption{left:23px;bottom:192px}.scene-caption h2{font-size:18px}.scene-caption p{font-size:9px}.scene-caption>span{font-size:9px}.bottom-panel{left:15px;right:15px;bottom:16px}.controls-hint{font-size:8px;gap:7px;margin-bottom:13px}.controls-hint .hint-key{margin-left:4px}.journey-bar{height:auto;display:grid;grid-template-columns:1fr 110px}.journey-label{display:none}#chapters{grid-column:1/-1;padding:0;height:58px}.chapter{padding:5px;display:flex;flex-direction:column;gap:3px}.chapter small{font-size:9px}.chapter>span{font-size:11px;letter-spacing:0}.tour-button{grid-column:1/-1;justify-content:center;border-left:0;border-top:1px solid var(--line);height:38px;margin:0;font-size:10px}.tour-button small{display:block;font-size:8px;margin-left:7px}.bottom-meta{font-size:7px;gap:12px;letter-spacing:0;padding-top:10px}.bottom-meta>span{max-width:48%;line-height:1.7}.bottom-meta button{font-size:8px}.bottom-meta button span{display:none}.wide-dialog{padding:28px;width:94vw}.wide-dialog h2{font-size:22px;letter-spacing:3px}.scroll-window{margin:22px -28px 17px}.reference-note{display:block}.reference-note p{margin:16px 0}.reference-note a{font-size:10px}.about-grid{grid-template-columns:1fr;gap:15px;margin:25px 0}.about-grid h3{font-size:17px;margin:10px 0}.about-grid p{margin-bottom:0}.side-dialog{margin:auto;width:min(360px,92vw)}.hotspot{font-size:8px;letter-spacing:1px}.hotspot i{width:15px;height:15px}.hotspot span{padding:4px 5px}.vignette{background:linear-gradient(180deg,#dde2d090,transparent 19%,transparent 65%,#122e21c9)}#toast{top:90px;font-size:10px;padding:10px 14px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}#interface-recording-toolbar{position:fixed;top:9px;left:50%;transform:translate(-50%);display:flex;gap:15px;align-items:center;background:#233e3a;color:#f4efdf;padding:8px 12px;z-index:1000;font-size:11px}#interface-recording-toolbar button{background:#a54e38;color:#fff;padding:5px 8px;font-size:10px}