@font-face{font-family:BookwalkSans;src:url('/fonts/inter-400.woff2') format('woff2');font-display:swap;font-weight:400}
@font-face{font-family:BookwalkMono;src:url('/fonts/jetbrains-400.woff2') format('woff2');font-display:swap}
:root{color-scheme:light;--paper:#eeeadd;--ink:#365253;--quiet:#526765;--rust:#9e6150;--rule:#36525335}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--paper);color:var(--ink)}body{font-family:BookwalkSans,'Noto Sans CJK SC','Microsoft YaHei',sans-serif}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}a{color:inherit;text-decoration:none}button{border:0;background:none}button:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid var(--rust);outline-offset:6px}button:disabled{cursor:default}button[hidden],a[hidden],[hidden]{display:none!important}
.bookwalk{position:relative;width:100%;height:100%;height:100dvh;overflow:hidden;isolation:isolate}#bookwalk-scene{display:block;width:100%;height:100%;outline-offset:-5px;touch-action:none}.world-vignette{position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 140px #736a5120;background:linear-gradient(0deg,#eeeadd9e,transparent 19%,transparent 85%,#eeeadd44)}
.world-header{position:absolute;inset:max(26px,env(safe-area-inset-top)) 3.4% auto;display:flex;align-items:center;justify-content:space-between;gap:24px;font-size:12px;letter-spacing:.1em}.world-back,.world-menu{display:flex;align-items:center;gap:10px;min-height:44px}.world-back>span{font-size:22px}.world-brand{position:absolute;left:50%;transform:translateX(-50%);font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;font-size:20px;letter-spacing:.28em;white-space:nowrap}.world-brand span{font:9px BookwalkMono,monospace;letter-spacing:.24em;margin-left:14px;vertical-align:middle}.world-menu>span{font-size:22px;font-weight:400}.world-story{position:absolute;left:8%;top:21%;max-width:510px;pointer-events:none}.story-eyebrow{font:10px BookwalkMono,monospace;letter-spacing:.17em;color:var(--quiet);margin:0 0 24px}.world-story h1{font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;font-size:clamp(36px,4vw,63px);font-weight:400;letter-spacing:.09em;line-height:1.43;margin:0 0 24px;white-space:pre-line}.story-body{font-size:13px;line-height:2.05;letter-spacing:.055em;color:var(--quiet);white-space:pre-line;margin:0}.story-actions{pointer-events:auto;margin-top:18px;min-height:32px}.story-actions>a,.story-actions>button{display:inline-flex;align-items:center;gap:22px;border-bottom:1px solid var(--rust);padding:4px 0 9px;font-size:13px;color:var(--rust);min-height:36px}.story-actions>button{font-family:Georgia,serif;font-style:italic;font-size:23px}.word-gloss{font-size:12px;line-height:1.9;border-left:2px solid #ad9160;padding:8px 15px;margin:9px 0 0;background:#f5f0e3e8;max-width:330px}.word-gloss strong{font:italic 17px Georgia,serif;margin-right:8px}.world-aside{position:absolute;right:5%;top:27%;max-width:190px;font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;writing-mode:vertical-rl;font-size:13px;letter-spacing:.22em;line-height:2;opacity:.8;pointer-events:none}.world-controls{position:absolute;inset:auto 3.4% max(25px,env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:42px}.world-progress{display:flex;align-items:center;gap:15px;font-size:11px;letter-spacing:.08em;min-width:250px}.progress-track{width:72px;height:1px;background:var(--rule);display:inline-block}.progress-track i{height:2px;display:block;background:var(--rust);width:0;transform:translateY(-.5px)}#progress-label{font:9px BookwalkMono,monospace;color:var(--quiet)}.keyboard-help{font-size:11px;color:var(--quiet);display:flex;align-items:center;gap:8px;white-space:nowrap}.keyboard-help>span{margin:0 7px}.keyboard-help kbd{font:10px BookwalkSans,sans-serif;border:1px solid #36525330;min-width:22px;line-height:22px;text-align:center;border-radius:2px;padding:0 4px}.mode-controls{display:flex;gap:20px;align-items:center}.mode-controls button{font-size:12px;letter-spacing:.08em;min-height:44px}.mode-controls button>span{margin-left:14px}.mode-controls #pause-world{border:1px solid var(--rule);width:32px;min-height:32px;border-radius:50%;font-size:12px;padding:0}.touch-controls{display:none}.world-status{position:absolute;bottom:90px;left:50%;transform:translateX(-50%);font-size:12px;letter-spacing:.08em;background:#eeeadddf;border-radius:2px;padding:9px 16px;pointer-events:none;white-space:nowrap;opacity:0;transition:opacity .25s}.world-status:not(:empty){opacity:1}
.chapter-map{color:var(--ink);border:1px solid #36525325;background:#eeeaddf9;width:min(660px,calc(100vw - 28px));max-height:calc(100dvh - 32px);padding:30px 38px;box-shadow:0 22px 100px #24373433;overscroll-behavior:contain}.chapter-map::backdrop{background:#233b3d44;backdrop-filter:blur(8px)}.map-header{display:flex;align-items:center;justify-content:space-between;gap:15px;font:9px BookwalkMono,monospace;letter-spacing:.12em}.map-header button{font-size:30px;width:44px;height:44px}.map-kicker{font-size:11px;letter-spacing:.14em;margin:28px 0 12px;color:var(--rust)}.chapter-map h2{font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;font-size:32px;font-weight:400;letter-spacing:.08em;margin:0 0 12px}.map-description{font-size:12px;line-height:1.9;color:var(--quiet)}.map-stops{display:flex;flex-direction:column;margin:26px 0}.map-stops button{display:flex;align-items:center;gap:24px;text-align:left;border-top:1px solid var(--rule);padding:19px 0;font-family:'Noto Serif CJK SC','Songti SC',SimSun,serif;font-size:17px;transition:padding .2s,color .2s}.map-stops button:last-child{border-bottom:1px solid var(--rule)}.map-stops button:hover{padding-left:8px;color:var(--rust)}.map-stops button[aria-current=true]{color:var(--rust)}.map-stops button>span{font:10px BookwalkMono,monospace}.map-stops button>small{margin-left:auto;font:10px BookwalkSans,sans-serif;color:var(--quiet)}.map-bottom{display:flex;gap:18px;justify-content:space-between;font-size:11px;line-height:1.7}.world-fallback{position:absolute;inset:20%;background:var(--paper);padding:32px;line-height:2}.world-fallback>a{border-bottom:1px solid}
@media(max-width:760px){.world-header{inset:14px 6% auto;gap:10px}.world-brand{font-size:18px}.world-brand span{display:none}.world-menu,.world-back{font-size:11px;gap:6px}.world-menu>span{font-size:20px}.world-story{top:16%;left:8%;right:6%;max-width:430px}.story-eyebrow{font-size:8px;letter-spacing:.11em;margin-bottom:18px}.world-story h1{font-size:38px;line-height:1.45;margin-bottom:18px}.story-body{font-size:11px;letter-spacing:.01em;line-height:1.9}.story-actions{margin-top:12px}.story-actions>a{font-size:12px}.world-aside{display:none}.world-controls{inset:auto 6% max(17px,env(safe-area-inset-bottom));gap:10px}.world-progress{min-width:0;gap:9px;font-size:10px}.progress-track{width:34px}.keyboard-help{display:none}.mode-controls{gap:10px}.mode-controls button{font-size:10px;letter-spacing:0}.mode-controls button>span{margin-left:4px}.mode-controls #pause-world{width:29px;min-height:29px}.touch-controls{position:absolute;display:flex;justify-content:space-between;left:6%;right:6%;bottom:87px;pointer-events:none}.touch-controls>div{display:flex;gap:10px}.touch-controls button{pointer-events:auto;touch-action:none;user-select:none;-webkit-user-select:none;border:1px solid #36525340;background:#eeeadd9c;width:50px;height:50px;border-radius:50%;font-size:22px;backdrop-filter:blur(5px)}.touch-controls button:active{background:#36525325;transform:scale(.96)}.touch-controls .touch-jump{font-family:serif;font-size:17px;width:57px;height:57px}.touch-jump span{font-size:14px}.world-status{bottom:151px;font-size:10px}.chapter-map{padding:20px 24px}.map-stops button{gap:16px}.map-bottom{flex-wrap:wrap;gap:10px}.word-gloss{font-size:10px}.word-gloss strong{font-size:15px}}
@media(pointer:coarse) and (min-width:761px){.touch-controls{display:flex;position:absolute;bottom:90px;left:4%;right:4%;justify-content:space-between}.touch-controls button{width:52px;height:52px;margin:4px;border:1px solid var(--rule);background:#eeeaddaa;border-radius:50%;touch-action:none}.keyboard-help{visibility:hidden}}
@media(max-height:570px){.world-story{top:20%;left:7%}.world-story h1{font-size:30px;margin-bottom:12px}.story-eyebrow{margin-bottom:10px}.story-body{font-size:10px;line-height:1.7}.story-actions{margin-top:8px}.world-controls{bottom:10px}.touch-controls{bottom:58px;left:auto;right:4%;gap:18px}.touch-controls button{width:42px;height:42px}.world-aside{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.bookwalk{color:var(--ink)}
.world-status{color:#365253}
.world-vignette{background:linear-gradient(0deg,var(--paper),transparent 19%,transparent 85%,transparent)}
.story-actions{display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;max-width:440px}
.story-actions>#element-action{font:11px BookwalkSans,sans-serif;font-style:normal;border-color:var(--rule);color:var(--quiet);letter-spacing:.04em}
.chapter-map{--ink:#365253;--quiet:#526765;--rust:#9e6150;--rule:#36525335;color:var(--ink);width:min(810px,calc(100vw - 28px));padding:26px 38px}
.world-map-regions{margin:26px 0 18px;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.map-region{border-top:1px solid var(--rule);padding:18px 0}
.map-region>button{display:grid;grid-template-columns:26px 1fr 22px;gap:7px 10px;text-align:left;width:100%;padding:0;min-height:50px}
.map-region>button>span{font:10px BookwalkMono,monospace;padding-top:5px;color:var(--rust)}
.map-region>button>strong{font:400 22px 'Noto Serif CJK SC','Songti SC',SimSun,serif;letter-spacing:.06em}
.map-region>button>small{grid-column:2;font-size:10px;line-height:1.7;color:var(--quiet)}
.map-region>button>i{grid-column:3;grid-row:1;font-style:normal;font-size:18px}
.map-region>button[aria-current=true]>strong,.map-region>button:hover>strong{color:var(--rust)}
.map-landmarks{display:flex;flex-wrap:wrap;gap:6px 12px;padding:13px 0 0 36px}
.map-landmarks button{font-size:10px;padding:4px 0;line-height:1.7;border-bottom:1px solid transparent;text-align:left}
.map-landmarks button[aria-current=true],.map-landmarks button:hover{border-color:var(--rust);color:var(--rust)}
.map-bottom{border-top:1px solid var(--rule);padding-top:18px;flex-wrap:wrap;gap:12px}
.map-reading{font-size:12px;border-top:1px solid var(--rule);padding:16px 0 20px;line-height:1.9}
.map-reading>summary{cursor:pointer}.map-reading section{margin-top:24px}.map-reading article{margin:22px 0}.map-reading h3{font:400 26px serif}.map-reading h4{font-size:14px;margin:0 0 8px}.map-reading p{white-space:pre-line;margin:0 0 8px}.map-reading a{color:var(--rust);border-bottom:1px solid}
@media(max-width:760px){.world-header .world-back{font-size:10px}.world-story{top:15%}.story-actions{max-width:310px;gap:6px 16px}.story-actions>#element-action{font-size:10px}.world-map-regions{grid-template-columns:1fr;gap:0}.chapter-map{padding:18px 24px}.map-region{padding:14px 0}.map-region>button>strong{font-size:21px}.map-landmarks{padding-top:8px}.map-description{font-size:11px}.world-status{max-width:90vw;white-space:normal;text-align:center;line-height:1.7}}
.world-story{transition:top .7s cubic-bezier(.22,1,.36,1)}
.world-story h1{transition:font-size .7s cubic-bezier(.22,1,.36,1),letter-spacing .7s}
.is-exploring .world-story{top:11%;left:5%;max-width:420px}
.is-exploring .story-eyebrow{margin-bottom:12px;font-size:9px}
.is-exploring .world-story h1{font-size:28px;line-height:1.5;letter-spacing:.045em;margin-bottom:10px}
.is-exploring .story-body{font-size:11px;line-height:1.8;max-width:370px}
.is-exploring .story-actions{margin-top:10px}
.is-exploring .story-actions>a{font-size:11px;min-height:30px;padding-bottom:5px}
.is-exploring .world-aside{display:none}
.scene-console{position:absolute;left:5%;right:5%;bottom:96px;pointer-events:none;display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.scene-console>p{margin:0;font-size:11px;line-height:1.6;letter-spacing:.035em;color:var(--quiet);padding:4px 0}
.scene-actions{display:flex;flex-wrap:wrap;gap:9px 18px;pointer-events:auto}
.scene-actions>button{display:flex;align-items:center;gap:10px;font-size:12px;line-height:1.6;min-height:36px;background:color-mix(in srgb,var(--paper) 88%,transparent);border-bottom:1px solid var(--rule);padding:4px 8px 7px 0;text-align:left;transition:color .2s,border-color .2s}
.scene-actions>button>span{font:10px BookwalkMono,monospace;border:1px solid var(--rule);padding:3px 5px;min-width:22px;text-align:center}
.scene-actions>button:hover{color:var(--rust);border-color:var(--rust)}
.world-status{bottom:175px;font-size:11px;max-width:min(760px,90vw);white-space:normal;text-align:center;line-height:1.8}
@media(max-width:760px) and (orientation:portrait){.is-exploring .world-story{top:88px;left:8%;right:7%;max-width:none}.is-exploring .story-eyebrow{font-size:8px;margin-bottom:7px}.is-exploring .world-story h1{font-size:23px;line-height:1.4;margin-bottom:8px}.is-exploring .story-body{display:none}.is-exploring .story-actions{margin-top:5px}.scene-console{top:275px;bottom:auto;left:8%;right:8%;gap:6px}.is-exploring .scene-console{top:213px}.scene-console>p{font-size:10px;line-height:1.7}.scene-actions{gap:4px 10px}.scene-actions>button{font-size:10px;min-height:34px;gap:7px;padding:3px 2px 4px 0}.scene-actions>button>span{font-size:8px;min-width:19px;padding:2px 3px}.world-status{bottom:160px;font-size:10px}.bookwalk:not(.is-exploring) .scene-console{top:auto;bottom:160px}.bookwalk:not(.is-exploring) .scene-console>p{display:none}}
@media(max-height:570px) and (orientation:landscape){.is-exploring .world-story{top:19%;left:5%}.is-exploring .world-story h1{font-size:22px}.is-exploring .story-body{display:none}.scene-console{bottom:59px;right:22%;gap:3px}.scene-console>p{font-size:9px}.scene-actions>button{font-size:10px;min-height:27px}.world-status{bottom:118px;font-size:10px}}
.progress-track{position:relative}
.progress-track .tick{position:absolute;top:-2px;width:1px;height:5px;background:var(--quiet);opacity:.55}
.glyph-chip{font:10px BookwalkMono,monospace;letter-spacing:.06em;color:var(--rust);border:1px solid var(--rule);padding:3px 8px;border-radius:99px;white-space:nowrap}
.glyph-chip b{font-weight:400;font-size:11px}.glyph-chip i{font-style:normal;color:var(--quiet)}
.map-region>button.complete>strong::after{content:' ✦';color:var(--rust);font-size:15px}
.map-glyphs{font:10px BookwalkMono,monospace;letter-spacing:.05em;color:var(--rust);margin:14px 0 0}
@media(max-width:760px){.glyph-chip{padding:2px 6px;font-size:9px}}
.chapter-card{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;pointer-events:none;text-align:center;opacity:0;transition:opacity .85s ease;z-index:5}
.chapter-card.show{opacity:1}
.cc-no{font:11px BookwalkMono,monospace;letter-spacing:.55em;text-indent:.55em;color:var(--rust);margin-bottom:16px}
.cc-title{font:400 clamp(44px,5.2vw,70px) 'Noto Serif CJK SC','Songti SC',SimSun,serif;letter-spacing:.3em;text-indent:.3em;color:var(--ink)}
.cc-rule{height:1px;width:0;background:var(--rust);margin:20px 0 15px;transition:width 1s cubic-bezier(.22,1,.36,1) .25s}
.chapter-card.show .cc-rule{width:170px}
.cc-kicker{font-size:11px;letter-spacing:.2em;color:var(--quiet)}
.chapter-card::before{content:'';position:absolute;inset:0;background:radial-gradient(52% 38% at 50% 50%,color-mix(in srgb,var(--paper) 52%,transparent) 6%,transparent 70%);z-index:-1}
.glyph-fly{position:fixed;z-index:30;pointer-events:none;font:22px 'Noto Serif CJK SC','Songti SC',SimSun,serif;color:var(--rust);transform:translate(-50%,-50%)}
#sound-toggle{min-width:36px;font-size:12px;letter-spacing:.05em}
.world-story{transform:translate(calc(var(--px,0) * -11px),calc(var(--py,0) * -7px));transition:transform .45s ease-out,top .7s cubic-bezier(.22,1,.36,1),color .55s ease}
.world-story h1{transition:font-size .7s cubic-bezier(.22,1,.36,1),letter-spacing .7s,color .55s ease}
.story-eyebrow,.story-body,.world-aside,.scene-console>p,.scene-actions>button,.scene-actions>button>span,.world-controls,.keyboard-help,.world-status,.glyph-chip,.progress-track i,.cc-no,.cc-kicker{transition:color .5s ease,border-color .5s ease,background-color .5s ease}
.world-story h1 span{display:inline-block}
@media(max-width:760px){.cc-title{font-size:34px;letter-spacing:.2em}.cc-no{letter-spacing:.35em}}