@font-face{font-family:Merriweather;src:url('assets/fonts/Merriweather-Regular.woff2') format('woff2');font-weight:400;font-display:swap}
:root{--paper:#f5f3e9;--ink:#253c2d;--quiet:#596557;--line:#cbd1c3;--dark:#193328;--sage:#cbd8b1;--clay:#d9ab8f;--header:84px;--serif:'Songti SC','STSong','SimSun',serif;--ease:cubic-bezier(.22,1,.36,1);color:var(--ink);background:var(--paper);font-family:'Microsoft YaHei','PingFang SC',sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 20px)}body{margin:0;min-width:320px}h1,h2,h3,p,figure{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #a66e43;outline-offset:6px}.wrap{width:min(1280px,88vw);margin-inline:auto}.english{font:400 15px/1.6 Merriweather,Georgia,serif}.skip{position:fixed;left:20px;top:-100px;z-index:100;background:var(--paper);padding:12px}.skip:focus{top:10px}
.navigation{position:sticky;top:0;z-index:50;height:var(--header);padding:0 4vw;background:var(--paper);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid transparent;transition:border-color .3s}.scrolled .navigation{border-bottom-color:var(--line)}.brand{display:flex;align-items:center;gap:13px;font:26px/1 var(--serif);letter-spacing:.07em}.brand-ring{width:26px;height:26px;border:1px solid var(--ink);border-radius:50%;position:relative}.brand-ring:after{content:'';position:absolute;inset:6px;border:1px dotted var(--ink);border-radius:50%}nav{display:flex;align-items:center;gap:32px;font-size:13px}nav>a{min-height:44px;display:inline-flex;align-items:center;position:relative}nav>a:not(.nav-create):after{content:'';position:absolute;bottom:8px;left:0;right:0;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .3s}nav>a:hover:after,nav>a[aria-current]:after{transform:scaleX(1)}.nav-create{background:var(--ink);color:var(--paper);padding:0 20px;gap:22px}.nav-create span{font-size:19px}.reading-progress{position:absolute;bottom:0;left:0;width:100%;height:2px;background:var(--ink);transform:scaleX(var(--read,0));transform-origin:left}
.hero{position:relative;min-height:min(840px,calc(100svh - var(--header)));display:grid;grid-template-columns:56% 44%;padding-left:6vw;overflow:clip}.hero-copy{padding:clamp(45px,7vh,85px) 0 36px;position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start}.hero h1{font:400 clamp(46px,6vw,98px)/1.4 var(--serif);letter-spacing:-.055em;margin-top:38px;margin-right:-70px}.hero h1 span{display:block;white-space:nowrap}.hero-description{font-size:15px;line-height:2;margin-top:28px}.hero-actions{display:flex;gap:28px;align-items:center;margin-top:32px}.solid-link{display:inline-flex;align-items:center;justify-content:space-between;gap:42px;min-height:55px;padding:0 25px;background:var(--ink);color:var(--paper);font-size:14px;transition:background .25s}.solid-link:hover,.nav-create:hover{background:#425b43}.solid-link span{font-size:24px;transition:transform .3s var(--ease)}.solid-link:hover span{transform:translate(3px,-3px)}.underlined{font-size:13px;padding-block:12px;border-bottom:1px solid var(--ink)}.hero-foot{display:flex;align-items:end;justify-content:space-between;width:90%;margin-top:auto;padding-top:40px;font-size:12px;color:var(--quiet);line-height:1.8}.hero-foot>a{width:44px;height:44px;display:grid;place-items:center;font:32px/1 var(--serif)}.hero-art{position:relative;min-height:660px;overflow:hidden;background:#78806a}.hero-art img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:65% 50%;transform:scale(var(--hero-scale,1.04)) translateY(var(--hero-shift,0px))}.hero-art:after{content:'';position:absolute;inset:50% 0 0;background:linear-gradient(transparent,rgba(14,30,21,.65));pointer-events:none}.hero-art figcaption{position:absolute;bottom:32px;right:32px;z-index:1;color:var(--paper);font-size:12px}
.section-label{display:flex;justify-content:space-between;font-size:12px;letter-spacing:.04em;color:var(--quiet);margin-bottom:46px}.section-label>span{font-size:11px}.idea{padding-block:clamp(100px,12vw,190px)}.idea h2{font:400 clamp(45px,6.6vw,102px)/1.45 var(--serif);letter-spacing:-.055em}.idea h2>span{color:var(--quiet)}.idea-detail{display:grid;grid-template-columns:1fr 1fr;align-items:start;margin-top:65px;gap:10vw}.idea-detail p{font-size:15px;line-height:2.1}.idea-detail p+p{margin-top:24px}.small-ring{height:72px;width:72px;border:1px solid var(--ink);border-radius:50%;position:relative;margin-top:12px}.small-ring:before,.small-ring:after{content:'';position:absolute;border:1px solid var(--line);border-radius:50%;inset:8px -9px -8px 9px}.small-ring:after{inset:16px -18px -16px 18px}
.transformation{background:var(--dark);color:var(--paper);position:relative}.scene-sticky{padding:40px 6vw 30px;min-height:760px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.scene-top,.scene-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;color:#d0d9c6}.scene-top>a{min-height:44px;display:flex;align-items:center;gap:16px}.scene-layout{display:grid;grid-template-columns:43% 57%;align-items:center;gap:0}.scene-copy h2{font:400 clamp(32px,3.3vw,54px)/1.5 var(--serif);letter-spacing:-.04em}.scene-copy h2 span{white-space:nowrap}.scene-text{margin-top:36px}.chapter{font-size:13px;line-height:2;color:#d0d9c6;margin-top:18px}.chapter strong{display:block;font-weight:400;color:var(--paper);font-size:16px;margin-bottom:12px}.sound-scene{position:relative;min-width:0;aspect-ratio:1.55}.scene-svg{display:block;width:100%;height:100%;overflow:visible}.guide{stroke:#74876b;stroke-width:1;opacity:.3}.scene-wave rect{rx:1}.wave-a{fill:var(--clay);transform:translateY(var(--ay,-100px));opacity:var(--source-opacity,0)}.wave-b{fill:var(--sage);transform:translateY(var(--by,100px));opacity:var(--source-opacity,0)}.wave-final{fill:var(--paper);opacity:var(--final-opacity,1);transform:scaleX(var(--final-scale,1));transform-origin:center}.source-label{position:absolute;left:4%;font-size:13px;opacity:var(--source-opacity,0)}.source-label>span{font-size:10px;margin-left:12px;opacity:.85}.source-label-a{top:15%;color:var(--clay)}.source-label-b{bottom:15%;color:var(--sage)}.output-label{position:absolute;left:4%;right:4%;bottom:4%;display:flex;justify-content:flex-end;align-items:center;opacity:var(--final-opacity,1)}.output-label>span{font-size:10px;color:#d0d9c6}.chapter-meter{display:flex;align-items:center;gap:14px;font-size:14px;line-height:1.4;transform:translateY(-12px)}.chapter-meter>span{opacity:.68;transition:opacity .3s}.chapter-meter>span.is-current{opacity:1}.chapter-meter i{display:block;width:40px;height:1px;background:#61765d}.motion-on .transformation{height:200svh}.motion-on .scene-sticky{position:sticky;top:var(--header);height:calc(100svh - var(--header));min-height:0}.motion-on .scene-text{position:relative;min-height:142px}.motion-on .chapter{position:absolute;inset:0;display:none;margin:0;opacity:0;transform:translateY(6px)}.motion-on .chapter.is-current{display:block;animation:scene-chapter-enter .18s ease-out both}@keyframes scene-chapter-enter{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.listen{padding-block:110px 90px}.listen-heading{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:end;margin-bottom:65px}.listen-heading h2,.how h2{font:400 clamp(38px,4.8vw,70px)/1.5 var(--serif);letter-spacing:-.045em}.listen-heading>p{font-size:14px;line-height:2;color:var(--quiet);padding-bottom:10px}.players{border-top:1px solid var(--line)}.player{display:grid;grid-template-columns:1fr auto;gap:20px;padding:32px 0;border-bottom:1px solid var(--line);align-items:center}.track-info>span{font-size:10px;letter-spacing:.05em;color:var(--quiet)}.track-info h3{font:400 23px/1.5 var(--serif);margin-top:9px}.play{display:none;width:58px;height:58px;border-radius:50%;border:1px solid var(--ink);background:transparent;color:var(--ink);transition:background .25s,color .25s;font-size:17px}.play:hover,.play[aria-pressed=true]{background:var(--ink);color:var(--paper)}.track-timeline{display:none;min-width:0}.enhanced.player{grid-template-columns:1fr 58px 1.65fr;gap:38px}.enhanced .play{display:grid;place-items:center}.enhanced .track-timeline{display:block}.enhanced audio{display:none}.player audio{width:100%;grid-column:1/-1}.wave-area{position:relative;height:68px}.wave-area svg{display:block;width:100%;height:100%}.base-wave{fill:#acb7a3}.played-wave{fill:var(--ink);clip-path:inset(0 calc(100% - var(--played,0%)) 0 0)}.wave-area input{position:absolute;inset:0;width:100%;height:100%;margin:0;appearance:none;-webkit-appearance:none;background:transparent;cursor:pointer}.wave-area input::-webkit-slider-runnable-track{background:transparent;height:100%}.wave-area input::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:2px;height:100%;background:var(--ink);border:0}.wave-area input::-moz-range-track{background:transparent}.wave-area input::-moz-range-thumb{width:2px;height:65px;border:0;border-radius:0;background:var(--ink)}.track-time{display:flex;justify-content:space-between;font-size:10px;font-variant-numeric:tabular-nums;color:var(--quiet);margin-top:8px}.audio-error:empty{display:none}.audio-error{grid-column:1/-1;font-size:13px}.final-player{background:#e4e8da;padding-inline:28px;margin:0 -28px;border-bottom:0}.final-player .play{background:var(--ink);color:var(--paper)}.final-player .play:hover{background:#496148}.audio-note{font-size:11px;color:var(--quiet);line-height:1.9;margin-top:24px}
.how{padding-block:60px 120px}.how ol{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:8vw;padding:0;margin:48px 0 0}.how li{border-top:1px solid var(--line);padding-top:24px}.how li>span{font:400 44px/1.1 Merriweather,Georgia,serif;color:#7b8973}.how h3{font:400 23px/1.4 var(--serif);margin:25px 0 15px}.how li p{font-size:14px;line-height:1.9;color:var(--quiet)}.invitation{padding:100px 6vw;background:#e6e9dd;text-align:center}.invitation h2{font:400 clamp(37px,5.5vw,80px)/1.5 var(--serif);letter-spacing:-.04em;margin:24px 0 34px}.privacy{font-size:11px;color:var(--quiet);margin-top:25px}footer{padding-block:32px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--quiet)}footer a{min-height:44px;display:inline-flex;align-items:center}footer>span{align-self:center}
@media(min-width:901px){.scene-layout{margin-block:35px}}
@media(max-width:1050px){.scene-layout{grid-template-columns:1fr 1fr}.scene-copy h2{font-size:3.8vw}.hero-art{min-height:640px}.hero h1{margin-top:35px}.enhanced.player{gap:24px;grid-template-columns:1fr 52px 1.2fr}.play{width:52px;height:52px}}
@media(max-width:900px){:root{--header:72px}.hero{grid-template-columns:1fr;padding-left:0;min-height:0}.hero-copy{padding:45px 6vw 35px}.hero h1{font-size:clamp(42px,9.7vw,78px);margin-right:0;margin-top:26px}.hero-description{margin-top:22px}.hero-foot{display:none}.hero-art{height:54svh;min-height:320px;margin-left:18vw}.hero-art img{object-position:60% 60%}.hero-art figcaption{right:24px;bottom:20px}.hero-actions{margin-top:24px}.idea{padding-block:100px}.idea h2{font-size:clamp(39px,7.5vw,68px)}.idea-detail{grid-template-columns:80px 1fr;gap:40px;margin-top:40px}.idea-detail p{font-size:14px}.scene-layout{grid-template-columns:1fr}.scene-copy h2{font-size:clamp(30px,5.8vw,50px)}.sound-scene{height:34svh;aspect-ratio:auto;max-height:350px}.scene-svg{width:100%;height:100%}.scene-copy{padding-top:20px}.scene-sticky{padding-block:22px;min-height:840px}.motion-on .transformation{height:200svh}.motion-on .scene-text{margin-top:20px;min-height:112px}.chapter{font-size:12px}.chapter strong{font-size:14px;margin-bottom:6px}.scene-bottom{align-items:start}.chapter-meter{gap:10px;font-size:12px;transform:translateY(-8px)}.chapter-meter i{width:24px}.source-label-a{top:13%}.source-label-b{bottom:13%}.output-label{bottom:1%}.listen{padding-block:80px}.listen-heading{grid-template-columns:1fr;gap:25px;margin-bottom:30px}.listen-heading h2{font-size:clamp(36px,7vw,55px)}.enhanced.player{grid-template-columns:1fr 48px;gap:14px;padding-block:26px}.enhanced .track-timeline{grid-column:1/-1}.track-info h3{font-size:23px}.play{width:48px;height:48px}.wave-area{height:50px}.final-player{padding-inline:18px;margin-inline:-18px}.section-label{margin-bottom:28px}.how{padding-block:20px 80px}.how ol{gap:28px}.how li>span{font-size:32px}.how h3{font-size:20px}.how li p{font-size:12px}.invitation{padding:80px 6vw}footer{flex-wrap:wrap}}
@media(max-width:480px){.navigation{padding-inline:5vw}.brand{font-size:24px;gap:9px}.brand-ring{width:23px;height:23px}nav{gap:18px;font-size:12px}.nav-create{padding-inline:13px;gap:10px}.nav-create span{display:none}.hero h1{font-size:10.5vw}.hero-description{font-size:13px}.hero-art{height:45svh;margin-left:12vw;min-height:290px}.hero .english{font-size:13px}.hero-art figcaption{font-size:11px}.idea h2{font-size:8.8vw}.idea-detail{grid-template-columns:1fr;gap:0}.small-ring{display:none}.idea-detail p{font-size:13px}.scene-copy h2{font-size:7.3vw}.scene-top{font-size:11px}.scene-bottom{gap:8px}.scene-sticky{padding-inline:6vw}.sound-scene{height:29svh}.output-label>span{font-size:9px}.how h2{font-size:10vw}.how ol{grid-template-columns:1fr;margin-top:30px;gap:25px}.how li{display:grid;grid-template-columns:48px 1fr;column-gap:18px}.how li>span{grid-row:1/3}.how h3{margin:0 0 10px}.how li p br{display:none}.invitation h2{font-size:8vw}.section-label>span{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.hero-art img{transform:none}.reading-progress{display:none}}