:root{color-scheme:dark;--bg:#191a16;--panel:#20211c;--ink:#eee6d2;--muted:#b3af9e;--line:#ffffff20;--accent:#bd7861;--paper:#d5c6a0;font-family:system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif}
*{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden}body{display:flex;flex-direction:column;background:var(--bg);color:var(--ink)}button,select,a,input{-webkit-tap-highlight-color:transparent}button,select,.button-link{font:inherit;color:inherit;border:1px solid var(--line);background:transparent;border-radius:5px;min-height:40px;padding:8px 13px;cursor:pointer}button:hover,.button-link:hover{background:#ffffff0d;border-color:#b3af9e80}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid #e2b586;outline-offset:3px}select{color-scheme:dark;background:var(--panel)}a{color:#e1bc98;text-underline-offset:4px}button[aria-pressed=true]{color:#efcfaf;border-color:var(--accent)}[hidden]{display:none!important}.masthead{display:flex;align-items:center;justify-content:space-between;padding:22px 32px 18px;padding-top:max(22px,env(safe-area-inset-top));flex:none;border-bottom:1px solid var(--line);gap:20px}.identity{display:flex;align-items:center;gap:16px}.seal{writing-mode:vertical-rl;font:19px 'Songti SC','STSong',serif;letter-spacing:3px;background:#914c3e;color:#f2e3c6;border:1px solid #c18c76;outline:3px solid #914c3e;padding:5px 4px;line-height:1}h1{font:500 23px/1.35 'Songti SC','STSong',serif;letter-spacing:.18em;margin:0}.identity p{font-size:11px;color:var(--muted);margin:7px 0 0;letter-spacing:.2em}.identity p span{margin:0 10px}.masthead nav{display:flex;gap:8px}.masthead nav button{font-size:12px;letter-spacing:.08em}#stage{position:relative;flex:1;min-height:80px;overflow:hidden;touch-action:none;cursor:grab;background:radial-gradient(ellipse at center,#36372c 0,#22231d 70%,var(--bg) 100%)}#stage:active{cursor:grabbing}#stage:focus{outline:none}#stage:focus-visible{box-shadow:inset 0 0 0 2px var(--accent)}#paper,#threeStage,#threeStage canvas{display:block;position:absolute;width:100%;height:100%;inset:0}.edge-note{position:absolute;bottom:6px;right:30px;pointer-events:none;color:#b4b09c8a;font-size:10px;letter-spacing:.15em}#loading{position:absolute;inset:0;display:grid;place-items:center;background:#191a1670;font:18px 'Songti SC',serif;letter-spacing:.15em;pointer-events:none}#notice{position:absolute;bottom:25px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:16px;max-width:90%;padding:8px 15px;border:1px solid #bd786155;border-radius:6px;background:#20211cf2;color:#ebd1b4;font-size:13px}#notice button{min-height:30px;white-space:nowrap;padding:4px 10px}.deck{flex:none;border-top:1px solid var(--line);padding:14px 32px max(20px,env(safe-area-inset-bottom));background:var(--bg)}.readout{display:flex;justify-content:space-between;align-items:center;max-width:1400px;margin:auto;color:var(--muted);font-size:11px;letter-spacing:.08em}.readout select{font-size:12px;border:0;padding:3px 12px 3px 6px;min-height:28px;background:transparent;color:var(--ink)}#position{font-variant-numeric:tabular-nums}#minimap{position:relative;height:46px;max-width:1400px;margin:7px auto 0;border:1px solid #a897723d;border-radius:3px;overflow:hidden;background:#292a22}#overview{position:absolute;top:50%;width:100%;height:auto;transform:translateY(-50%);opacity:.74}#viewbox{position:absolute;top:0;bottom:0;border:2px solid #ddb18a;background:#ffffff15;pointer-events:none}#progress{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;direction:rtl;cursor:ew-resize;touch-action:none}#minimap:focus-within{outline:2px solid #ddb18a;outline-offset:3px}.map-labels{display:flex;max-width:1400px;margin:2px auto 7px;align-items:center;justify-content:space-between;font-size:10px;color:#8d917f}.map-labels button{border:0;padding:4px 0;min-height:28px;font-size:11px;color:var(--muted)}.map-labels span{letter-spacing:.16em}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;max-width:1400px;margin:auto}.controls{display:flex;align-items:center;gap:6px}.controls button{min-width:40px;font-size:13px}.controls #previous,.controls #next{font-size:21px;padding:4px 10px}.primary{background:#b5755730;border-color:#bd786175;color:#efcfaf}.hint{font-size:11px;color:#979c8c;white-space:nowrap;margin:0}.hint span{margin:0 8px}.speed-label{font-size:11px;color:var(--muted);margin-left:5px;white-space:nowrap}.speed-label select{font-size:12px;min-height:36px;padding:5px 8px}.zoom button{font-size:17px}.zoom #fit{font-size:11px;min-width:78px}.no-script{position:fixed;inset:35% 10%;z-index:100;background:var(--panel);padding:30px;text-align:center}dialog{background:#25261f;color:var(--ink);border:1px solid #b9aa8940;border-radius:10px;width:min(620px,calc(100% - 30px));max-height:calc(100dvh - 40px);padding:26px;box-shadow:0 25px 100px #0009}dialog::backdrop{background:#0a0b08bd;backdrop-filter:blur(5px)}dialog p{font-size:14px;line-height:1.85;color:#d3d0c0}.dialog-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:15px}.dialog-head h2{font:25px 'Songti SC','STSong',serif;margin:3px 0 0}.dialog-head .eyebrow{font-size:10px;letter-spacing:.2em;color:#ca9d78;margin:0 0 7px}.close{font-size:22px;padding:0 10px;min-height:34px}.fineprint{font-size:11px!important;color:var(--muted)!important;margin-bottom:0}.about-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.button-link{text-decoration:none;font-size:13px}#sourceDialog{width:min(1080px,calc(100% - 26px));padding:20px}#sourceViewport{height:min(62dvh,650px);position:relative;background:#191a16}#sourceCanvas{width:100%;height:100%;display:block}#sourceStatus{position:absolute;left:15px;top:0}.dialog-foot{display:flex;align-items:center;gap:12px;margin-top:15px;font-size:12px}.dialog-foot a{margin-left:auto}.dialog-foot button{font-size:12px}
@media(max-width:850px){.hint{display:none}.masthead{padding:18px 22px}.deck{padding-left:20px;padding-right:20px}.toolbar{gap:8px}h1{font-size:20px}}
@media(max-width:560px){.masthead{padding:14px 16px;gap:8px;flex-wrap:wrap}.identity{gap:12px}.seal{font-size:15px;padding:4px 3px}h1{font-size:18px;letter-spacing:.12em}.identity p{font-size:9px;margin-top:4px}.masthead nav{gap:5px;margin-left:auto}.masthead nav button{padding:5px 9px;min-height:34px;font-size:11px}.masthead nav #about{display:block}.deck{padding:10px 14px max(13px,env(safe-area-inset-bottom))}.readout{font-size:10px}.readout select{max-width:165px}#minimap{height:32px;margin-top:3px}.toolbar{gap:8px;flex-wrap:wrap}.controls{gap:5px}.controls button{padding:6px 10px;min-height:40px}.speed-label{display:none}.zoom{margin-left:auto}.zoom #fullscreen{display:none}.zoom #fit{min-width:64px;padding:6px;font-size:10px}#play{font-size:12px}.edge-note{right:18px;font-size:9px}dialog{padding:20px}.dialog-foot{gap:6px;font-size:11px}.dialog-foot button{padding:6px 9px}#sourceDialog .fineprint{line-height:1.5}}
@media(max-width:370px){.masthead nav{width:100%;justify-content:flex-end}.masthead nav #about{display:block}.toolbar{justify-content:center}.zoom{margin-left:0}.controls button{min-height:36px}#fullscreen{display:none}}
@media(max-height:520px) and (orientation:landscape){.masthead{padding:8px 18px}h1{font-size:17px}.identity p{display:none}.seal{font-size:12px}.deck{padding:4px 18px 7px}.readout{display:none}#minimap{height:22px;margin-top:2px}.map-labels{display:none}.toolbar{margin-top:5px}.toolbar button{min-height:32px;padding:4px 10px}.speed-label select{min-height:30px}.edge-note{display:none}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}