@font-face{font-family:"Showcase Serif";src:url("/assets/fonts/showcase-serif.woff2") format("woff2");font-weight:500;font-display:swap}
:root{--paper:#faf8f2;--ink:#161616;--muted:#58615a;--line:#d8d5cb;--stage:#111513;--gold:#dac4a1;--ease:cubic-bezier(.23,1,.32,1)}
img{height:auto}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px;color-scheme:light}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.85}body,input,button,select{font-synthesis:none}::selection{background:#d5dfd1;color:var(--ink)}*{scrollbar-color:#aaa99b var(--paper);scrollbar-width:thin}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px}button,select{font:inherit;color:inherit}button,a,summary,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,a:focus-visible,summary:focus-visible,select:focus-visible{outline:2px solid #536b56;outline-offset:6px}button svg,a svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;flex-shrink:0}h1,h2,h3,p,figure,blockquote{margin:0}h1,h2,h3,.brand,.paper-title,.hero-paper>p,.demo-writing>p,.emotion-page blockquote,.album-cover{font-family:"Showcase Serif","Songti SC",SimSun,serif;font-weight:500}h1,h2,h3{text-wrap:balance}h1{font-size:clamp(42px,4.7vw,68px);line-height:1.48;letter-spacing:-.025em}h2{font-size:clamp(32px,3.4vw,48px);line-height:1.5;letter-spacing:-.02em}h3{font-size:23px;line-height:1.6}p{max-width:70ch}img{display:block;max-width:100%}[hidden]{display:none!important}.wrap{width:min(1240px,calc(100% - 96px));margin-inline:auto}.section{padding-block:128px;scroll-margin-top:24px}.small-note{font-size:12px;line-height:1.85;color:var(--muted)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:60px;margin-bottom:64px}.section-heading>p{color:var(--muted);max-width:410px;margin-bottom:10px}.skip-link{position:fixed;left:24px;top:-100px;z-index:100;padding:12px 20px;background:var(--ink);color:var(--paper)}.skip-link:focus{top:12px}
.site-header{height:86px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:22px;text-decoration:none;white-space:nowrap}.brand-mark{width:18px;height:17px;border-block:1px solid var(--ink);position:relative}.brand-mark:after{content:"";height:1px;position:absolute;top:7px;left:0;right:0;background:var(--ink)}nav{display:flex;align-items:center;gap:32px;font-size:14px}nav a{text-decoration:none;min-height:44px;display:inline-flex;align-items:center;gap:10px}.button{min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:12px 23px;border:1px solid transparent;border-radius:999px;text-decoration:none;font-size:14px;line-height:1.6;transition:background-color 160ms var(--ease),transform 120ms var(--ease)}.primary{background:#23302b;color:var(--paper)}.text-link,.text-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:44px;background:none;border:0;padding:6px 0;text-decoration:none;font-size:14px}.text-link{text-decoration:underline}.actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}.button[data-pressed]{transform:scale(.975)}
.hero{min-height:calc(100svh - 86px);max-height:1050px;position:relative;display:grid;grid-template-columns:1fr 1.15fr;align-items:center;gap:56px;padding-block:64px 132px}.hero .lead{font-size:16px;line-height:2.1;color:var(--muted);margin:26px 0 34px}.hero-copy>.small-note{margin-top:18px}.hero-scene{position:relative;min-width:0;min-height:500px;padding:25px 28px 110px 12px}.hero-paper{position:relative;padding:44px 40px 34px;background:#f1eee5;min-height:338px;transform:rotate(-3deg);transform-origin:50% 70%;transition:transform 700ms var(--ease)}.paper-title{font-size:17px;color:#596055}.hero-paper>p{font-size:clamp(20px,1.8vw,26px);line-height:2.15;margin-top:22px;white-space:nowrap}.paper-caret{display:inline-block;height:1em;border-left:1px solid #717868;margin-left:6px;vertical-align:-2px}.hero-record{position:absolute;width:clamp(190px,19vw,275px);right:-12px;bottom:12px;transform:rotate(calc(12deg + var(--hero-progress,0)*20deg));filter:drop-shadow(0 14px 18px #16161616)}.hero-scroll{position:absolute;bottom:37px;left:0;display:flex;gap:20px;align-items:center;font-size:12px;text-decoration:none;color:var(--muted)}.mini-staff{position:relative;margin-top:24px;height:38px}.mini-staff i{display:block;height:1px;background:#aaa99b;margin-bottom:7px}.mini-staff span{position:absolute;left:27%;top:3px;width:8px;height:5px;border-radius:50%;background:#3c4b3e;transform:rotate(-20deg)}.mini-staff span:after{content:"";position:absolute;right:0;bottom:2px;height:20px;border-right:1px solid #3c4b3e}.mini-staff .note-b{left:48%;top:17px}.mini-staff .note-c{left:72%;top:10px}
.demo-section{background:#f0eee6}.demo-workspace{background:var(--paper);padding:30px 48px 28px;max-width:1100px;margin:auto}.demo-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding-bottom:20px;font-size:14px}.demo-document span{font-size:12px;color:var(--muted);margin-left:14px}#demo-mode{font-size:12px;color:var(--muted)}.demo-scene{display:grid;grid-template-columns:1fr 225px;gap:70px;align-items:center;min-height:280px;padding-block:34px 15px}.demo-writing{align-self:start}.demo-writing h3{font-size:17px;color:var(--muted);margin-bottom:16px}.demo-writing>p{font-size:19px;line-height:2;min-height:152px}.writing-caret{display:none;height:18px;border-left:1px solid var(--muted)}[data-state="playing"] .writing-caret{display:inline-block}.demo-record-wrap{align-self:center;position:relative}#demo-record{width:210px;aspect-ratio:1;animation:record-turn 18s linear infinite;animation-play-state:paused}.demo-workspace[data-state="playing"] #demo-record{animation-play-state:running}.record-caption{text-align:center;font-size:12px;line-height:1.7;margin-top:12px;color:var(--muted)}.record-caption span{display:block;font-size:12px}#score-empty{position:absolute;left:10%;top:40%;font-size:12px;color:var(--muted);background:var(--paper);padding:0 16px}.demo-feedback{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:18px;font-size:14px}#demo-time{font-variant-numeric:tabular-nums;font-size:12px;color:var(--muted);white-space:nowrap}#demo-progress{appearance:none;display:block;width:100%;height:2px;border:0;background:#ddd9cd;margin:17px 0 24px;color:#62765e}#demo-progress::-webkit-progress-bar{background:#ddd9cd}#demo-progress::-webkit-progress-value{background:#62765e}#demo-progress::-moz-progress-bar{background:#62765e}.demo-controls{display:flex;align-items:center;gap:28px}.demo-controls+.small-note{margin-top:13px;min-height:23px}.demo-chapters{display:flex;justify-content:center;gap:48px;margin-top:31px;font-size:13px;color:var(--muted)}.demo-chapters span{padding-bottom:7px;border-bottom:1px solid transparent}.demo-chapters .is-active{color:var(--ink);border-color:var(--ink)}.fallback{margin-top:20px;color:#6b4635;font-size:14px}
.score-rail{--score-energy:.5;--endpoint-x:7%;position:relative;isolation:isolate;height:105px;overflow:hidden;color:#161616}.score-rail-lines{position:absolute;top:30%;left:0;right:0;height:40%;border-bottom:1px solid #b9b7aa;background-image:linear-gradient(to bottom,#b9b7aa 1px,transparent 1px);background-size:100% 25%}.score-note-layer{position:absolute;z-index:2;inset:0}.score-endpoint{position:absolute;z-index:5;top:26%;left:7%;width:7px;height:48%}.score-endpoint i{position:absolute;inset-block:0;background:#484d42}.score-endpoint i:first-child{left:0;width:1px}.score-endpoint i:last-child{right:0;width:2px}.score-note{position:absolute;width:34px;height:34px;transform:translate(-50%,-50%);pointer-events:none}.score-note-image{position:relative;width:100%;height:100%;object-fit:contain;filter:grayscale(1)}.score-note-ribbon{position:absolute;inset:0;opacity:var(--ribbon-fade,0)}.score-note-ribbon svg{width:calc(100% + var(--trail-length));height:100%;overflow:visible}.score-note-ghost{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:calc(.15*var(--ribbon-fade,0));transform:translate(var(--trail-length),var(--ghost-y,0));filter:grayscale(1)}.score-note-dust,.score-note-particles{display:none}.score-note.is-arriving .score-note-image{filter:grayscale(1) contrast(1.35)}
.rhythm-sequence{display:grid;grid-template-columns:repeat(3,1fr);gap:64px;padding-top:4px}.rhythm-sequence article+article{position:relative}.rhythm-sequence article+article:before{content:"";position:absolute;left:-32px;top:52px;width:1px;height:140px;background:var(--line)}.rhythm-sequence p{font-size:14px;color:var(--muted);margin-top:14px}.rhythm-section>.small-note{margin-top:35px}.rhythm-drawing{height:100px;display:flex;align-items:center;gap:14px;margin-bottom:23px;position:relative}.rhythm-drawing:before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--line)}.rhythm-drawing i{z-index:1;display:block;width:2px;height:18px;background:#697d64;transform-origin:center;transition:transform 750ms var(--ease)}.rhythm-begin i:nth-child(2n){height:30px}.rhythm-flow{gap:13px}.rhythm-flow i{height:50px}.rhythm-flow i:nth-child(3n){height:72px}.rhythm-flow i:nth-child(2n){height:32px}.rhythm-pause i{height:50px}.rhythm-pause i:nth-child(2){height:38px}.rhythm-pause i:nth-child(3){height:26px}.rhythm-pause i:nth-child(4){height:14px}.rhythm-pause i:nth-child(5){height:4px}.rhythm-section.is-present .rhythm-drawing i{animation:breath-rise 900ms var(--ease) both}
.emotion-section{background:#eeece3}.emotion-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:120px;align-items:center}.emotion-copy>p{margin:22px 0;color:var(--muted);max-width:340px}.choice-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.choice-row button{min-width:62px;min-height:44px;border:1px solid #aaa99b;padding:6px 16px;background:transparent;border-radius:999px;font-size:14px}.choice-row button[aria-pressed="true"]{background:#23302b;color:var(--paper);border-color:#23302b}.emotion-page{padding:46px 0 30px;border-block:1px solid #babcae}.emotion-page blockquote{font-size:24px;line-height:2;min-height:240px}.emotion-result{display:grid;grid-template-columns:110px 1fr;gap:24px;margin-top:28px;padding-top:23px;border-top:1px solid #c6c7b9;font-size:14px}.emotion-result>span{color:#38533e}.emotion-result p{color:var(--muted);min-height:80px}.emotion-page>.small-note{margin-top:22px}.content-arrive{animation:content-arrive 220ms var(--ease)}
.record-browser{display:grid;grid-template-columns:1.2fr 1fr;gap:94px;align-items:center}.record-shelf{display:flex;align-items:start;gap:22px;padding-block:30px}.record-choice{padding:0 0 12px;background:none;border:0;flex:1;min-width:0;text-align:left}.record-choice img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;transition:transform 380ms var(--ease);transform:translateY(0);filter:saturate(.7)}.record-choice:nth-child(2){margin-top:40px}.record-choice:nth-child(3){margin-top:80px}.record-choice[aria-pressed="true"] img{transform:translateY(-15px);filter:saturate(1)}.record-choice span{display:block;margin-top:14px;font-size:14px;line-height:1.8}.record-choice[aria-pressed="true"] span{text-decoration:underline;text-underline-offset:6px}.record-detail-heading>span{display:block;font-size:13px;color:var(--muted);margin-top:8px}.record-info>p{font-size:14px;color:var(--muted);margin-top:17px;min-height:53px}.record-info ul{font-size:13px;padding-left:18px;color:var(--muted);margin:20px 0;min-height:96px;max-height:170px;overflow:auto}.catalog-label{display:block;font-size:12px;color:var(--muted);margin:20px 0 7px}#record-select{width:100%;min-height:44px;padding:8px 34px 8px 12px;border:1px solid #b0b4a6;background:transparent;border-radius:0;font-size:14px}.record-info>.small-note{font-size:12px;min-height:0}
.orchestra-section{background:var(--stage);color:#f2eadd}.orchestra-section .section-heading>p,.orchestra-section .small-note{color:#b7c0b2}.orchestra-section .section-heading{margin-bottom:24px}.hall-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:92px;align-items:center}.hall-stage svg{width:100%;height:auto}.hall-guides{fill:none;stroke:#465144;stroke-width:1}.hall-conductor{fill:var(--gold)}.hall-stage .small-note{text-align:center}.hall-seat-group{fill:#737e6b;transition:fill 200ms var(--ease),opacity 200ms var(--ease)}.hall-seat-group[data-selected="true"]{fill:var(--gold)}.voice-controls{display:flex;flex-wrap:wrap;gap:5px 17px;margin-bottom:30px}.voice-controls button{padding:7px 0;min-height:44px;border:0;border-bottom:1px solid transparent;background:none;color:#bcc5b7;font-size:13px}.voice-controls button[aria-pressed="true"]{border-color:var(--gold);color:var(--gold)}.voice-controls button:focus-visible{outline-color:var(--gold)}.hall-description h3{font-size:27px}.hall-description>p{color:#c6cbbc;font-size:14px;line-height:1.95;margin-top:16px}.hall-description .family-members{font-size:12px;color:#acb7a5;min-height:46px}.hall-description>.small-note{font-size:12px;margin-top:26px}
.album-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:96px;align-items:center}.album-copy>p{color:var(--muted);margin:25px 0}.album-copy .text-button{text-decoration:underline;text-underline-offset:6px}.album-copy>.small-note{font-size:12px;margin-top:20px}.album-object{display:grid;grid-template-columns:minmax(0,1fr);justify-items:center;min-height:370px;align-items:center}.album-cover{width:310px;max-width:100%;aspect-ratio:1;position:relative;background:#c9d0bf;color:#23302b;padding:28px 30px;display:flex;flex-direction:column;overflow:hidden;transition:transform 550ms var(--ease)}.album-cover>span{font-size:12px}.album-cover h3{font-size:33px;margin-top:20px;position:relative;z-index:1}.album-cover>p{margin-top:auto;font-size:13px;position:relative;z-index:1}.album-ring{position:absolute;right:-70px;top:70px;width:250px;aspect-ratio:1;border:1px solid #7a8d70;border-radius:50%}.album-ring:after,.album-ring:before{content:"";position:absolute;inset:20px;border:1px solid #7a8d70;border-radius:50%}.album-ring:after{inset:45px}.album-object.is-open{grid-template-columns:.8fr 1fr;gap:24px}.album-object.is-open .album-cover{width:220px;transform:rotate(-5deg)}.album-object.is-open .album-cover h3{font-size:26px}.album-contents{border-block:1px solid var(--line);padding-block:10px;animation:content-arrive 220ms var(--ease)}.album-contents>div{padding-block:13px;border-bottom:1px solid var(--line);font-size:14px}.album-contents>div p{font-size:12px;color:var(--muted);margin-top:3px}.album-contents>.small-note{margin-top:14px}
.closing{text-align:center;background:#eeece3}.closing h2{font-size:clamp(37px,4vw,58px)}.closing>.wrap>p{margin:22px auto;color:var(--muted)}.closing .button{margin-top:8px}.closing>.wrap>.small-note{font-size:12px;margin-top:17px}.trust-details{width:min(680px,100%);margin:64px auto 0;text-align:left}.trust-details details{border-top:1px solid #cccebf;padding-block:17px}.trust-details summary{cursor:pointer;font-size:14px;min-height:28px}.trust-details details p{font-size:13px;color:var(--muted);margin:16px 0 8px;line-height:1.9}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:120px;font-size:12px;color:var(--muted)}.site-footer .brand{color:var(--ink);font-size:18px}.site-footer>a:last-child{min-height:44px;display:flex;align-items:center;text-decoration:none}
@keyframes record-turn{to{transform:rotate(360deg)}}@keyframes content-arrive{from{transform:translateY(8px);opacity:.75}to{transform:none;opacity:1}}@keyframes breath-rise{from{transform:scaleY(.65)}to{transform:scaleY(1)}}
@media(hover:hover) and (pointer:fine){.primary:hover{background:#3c4b3e}.text-link:hover,.text-button:hover,nav a:hover{color:#6a735d}.record-choice:hover img{transform:translateY(-15px)}.voice-controls button:hover{color:#f2eadd}}
@media(min-width:1000px){.hero-scene{transform:translateY(calc(var(--hero-progress,0)*-16px))}}
@media(max-width:1100px){.wrap{width:calc(100% - 72px)}.hero{gap:28px}.hero-scene{padding-right:10px;min-height:455px}.hero-paper{padding:32px 26px}.hero-paper>p{font-size:21px}.hero-record{right:-5px;width:215px}.emotion-layout{gap:65px}.record-browser{gap:54px}.hall-layout{gap:48px}.album-layout{gap:48px}.demo-scene{gap:40px;grid-template-columns:1fr 180px}.demo-record-wrap img{width:180px}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.section{padding-block:84px}.site-header{height:76px}.site-header nav{gap:22px}.site-header nav>a:nth-child(2){display:none}.brand{font-size:20px}.brand-mark{display:none}.hero{grid-template-columns:1fr;gap:48px;padding-block:48px 100px;min-height:0;max-height:none}.hero-copy{max-width:580px}.hero-scene{min-height:390px;max-width:560px;width:100%;justify-self:center}.hero-paper{padding:30px 36px;min-height:265px}.hero-paper>p{font-size:24px}.hero-record{width:210px;bottom:0;right:0}.hero-scroll{bottom:32px}.hero .lead{margin-block:22px 25px}.hero h1{font-size:52px}.section-heading{gap:24px;margin-bottom:40px;align-items:start;flex-direction:column}.section-heading>p{font-size:15px}.emotion-layout,.record-browser,.hall-layout,.album-layout{grid-template-columns:1fr;gap:44px}.emotion-copy>p{max-width:520px}.emotion-page blockquote{min-height:180px}.emotion-page{padding-top:28px}.record-shelf{width:min(550px,100%);justify-self:center}.record-info ul{min-height:0}.record-info>p{min-height:0}.hall-layout{gap:28px}.hall-stage{max-width:580px;justify-self:center;width:100%}.hall-description{max-width:580px}.orchestra-section .section-heading{margin-bottom:0}.album-object{width:min(570px,100%);justify-self:center}.demo-workspace{padding:24px 28px}.demo-scene{grid-template-columns:1fr 130px;gap:25px;min-height:320px}.demo-writing>p{font-size:18px;min-height:216px}#demo-record{width:130px}.rhythm-sequence{gap:30px}.rhythm-sequence article+article:before{left:-15px}.rhythm-drawing{gap:10px}.rhythm-flow{gap:9px}.rhythm-sequence h3{font-size:21px}.site-footer{flex-wrap:wrap;padding-block:27px}}
@media(max-width:520px){.section{padding-block:76px}h2{font-size:33px}h3{font-size:22px}.site-header nav>a:first-child{display:none}.site-header nav{font-size:12px}.site-header nav a{gap:6px}.site-header nav svg{width:16px}.hero{padding-top:36px;gap:36px}.hero h1{font-size:39px;line-height:1.6}.hero .lead{font-size:14px}.hero .lead br{display:none}.actions{gap:13px 22px}.hero .actions .button{min-height:49px;padding-inline:18px;font-size:13px}.hero .actions .text-link{font-size:13px}.hero-scene{min-height:340px;padding:8px 12px 100px}.hero-paper{padding:24px 21px;min-height:245px}.hero-paper>p{font-size:19px}.paper-title{font-size:14px}.hero-record{width:167px;right:-5px;bottom:0}.hero-scroll{font-size:12px}.section-heading>p{font-size:14px}.desktop-only{display:none}.demo-workspace{padding:20px 18px}.demo-toolbar{font-size:12px;gap:8px;align-items:start}.demo-document span{display:block;margin-left:0;margin-top:3px}#demo-mode{max-width:130px;text-align:right}.demo-scene{grid-template-columns:1fr;gap:0;position:relative;min-height:320px;padding-top:24px;padding-bottom:30px}.demo-writing{z-index:1}.demo-writing h3{font-size:15px}.demo-writing>p{font-size:17px;line-height:1.95;min-height:220px}.demo-record-wrap{display:none}.demo-feedback{align-items:start;font-size:12px;min-height:46px}#demo-time{font-size:12px}.demo-controls{gap:7px 19px;flex-wrap:wrap}.demo-controls .button{width:100%;min-height:48px}.demo-controls .text-button{font-size:13px}.demo-chapters{gap:0;justify-content:space-between;font-size:12px}.demo-chapters span{padding-bottom:8px}.score-rail{height:90px}.score-note{width:29px;height:29px}#score-empty{font-size:12px;left:7%;padding-inline:10px}.rhythm-sequence{grid-template-columns:1fr;gap:35px}.rhythm-sequence article{display:grid;grid-template-columns:95px 1fr;gap:7px 24px;align-items:center}.rhythm-sequence article+article:before{display:none}.rhythm-drawing{grid-row:1/3;height:100%;min-height:90px;margin:0;gap:10px}.rhythm-flow{gap:7px}.rhythm-sequence h3{font-size:22px}.rhythm-sequence p{grid-column:2;margin:0;font-size:14px}.emotion-copy>p{font-size:14px}.emotion-page blockquote{font-size:21px;min-height:290px}.emotion-result{grid-template-columns:1fr;gap:9px}.emotion-result p{min-height:72px}.record-browser{gap:28px}.record-shelf{gap:14px;padding-block:18px}.record-choice:nth-child(2){margin-top:22px}.record-choice:nth-child(3){margin-top:44px}.record-choice span{font-size:13px}.record-detail-heading h3{font-size:24px}.hall-layout{gap:20px}.hall-description h3{font-size:25px}.voice-controls{gap:4px 17px}.voice-controls button{font-size:12px}.album-copy>p{font-size:14px}.album-object{min-height:320px}.album-cover{width:285px}.album-object.is-open{grid-template-columns:1fr;gap:28px}.album-object.is-open .album-cover{width:230px}.album-contents{width:100%;min-height:270px}.closing h2{font-size:39px}.closing>.wrap>p{font-size:14px}.trust-details{margin-top:48px}.site-footer{gap:10px 20px}.site-footer>span{order:3;width:100%}.site-footer>a:last-child{margin-left:auto}}
@media(max-width:520px){.demo-scene{min-height:300px}.demo-record-wrap{display:block;position:absolute;right:0;top:10px;width:64px}.demo-record-wrap #demo-record{width:64px}.demo-record-wrap .record-caption{display:none}.demo-writing h3{max-width:calc(100% - 76px);min-height:46px}.demo-writing>p{min-height:200px}}
@media(min-width:801px){.demo-workspace{padding:24px 40px}.demo-toolbar{padding-bottom:16px}.demo-scene{min-height:250px;padding-block:26px 12px;grid-template-columns:1fr 180px}.demo-writing>p{font-size:18px;line-height:1.9;min-height:140px}#demo-record{width:170px}.score-rail{height:90px}}
.demo-workspace{scroll-margin-top:20px}
html.keyboard-input *{scroll-behavior:auto!important}html.keyboard-input .record-choice img,html.keyboard-input .album-cover{transition:none!important}html.keyboard-input .content-arrive,html.keyboard-input .album-contents{animation:none!important}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.hero-record,.hero-scene{transform:none}.score-note-ribbon,.score-note-ghost{display:none}}
/* Three feature chapters: motion explains writing, mood and the real orchestra. */
.rhythm-lab{display:grid;grid-template-columns:1.1fr 1fr;gap:72px;align-items:center;min-height:315px;padding:36px 0 42px;border-block:1px solid var(--line)}
.rhythm-paper{padding:25px 34px;background:#f1eee5;transform:rotate(-1deg);min-height:230px}.rhythm-paper>p{font-family:"Showcase Serif",SimSun,serif;font-size:25px;line-height:1.9;margin-top:22px;min-height:100px;max-width:24ch}.rhythm-caret{display:inline-block;height:1em;border-left:1px solid #62765e;margin-left:5px;vertical-align:-2px}.rhythm-keystrokes{display:flex;gap:7px;align-items:center;height:20px;margin-top:14px;overflow:hidden}.rhythm-keystrokes i{height:4px;width:4px;border-radius:50%;background:#7d8e75;opacity:.25;flex:none}.rhythm-response{min-width:0}.breath-ensemble{display:flex;align-items:center;justify-content:center;gap:9px;height:148px}.breath-ensemble i{width:3px;height:var(--height);background:#7e9075;transform:scaleY(.25);border-radius:3px;transition:transform 900ms cubic-bezier(.16,1,.3,1),background-color 400ms}.rhythm-response-copy{margin-top:20px;max-width:370px}.rhythm-response-copy strong{font-family:"Showcase Serif",SimSun,serif;font-weight:500;font-size:22px}.rhythm-response-copy p{font-size:14px;color:var(--muted);margin-top:8px;min-height:54px}.rhythm-lab[data-phase=flow] .breath-ensemble i{transform:scaleY(1);background:#4b664b}.rhythm-lab[data-phase=think] .breath-ensemble i{transform:scaleY(.78)}.rhythm-lab[data-release=true] .breath-ensemble i{transform:scaleY(.22);background:#8c9787}.rhythm-lab[data-running=true] .rhythm-caret{animation:writing-blink 1s steps(1) infinite}.rhythm-lab[data-running=true]:not([data-phase=think]) .rhythm-keystrokes i{animation:key-arrives 1.8s linear infinite;animation-delay:calc(var(--key)*60ms)}.rhythm-lab[data-running=true][data-phase=flow] .breath-ensemble i{animation:ensemble-breath 2.6s cubic-bezier(.45,0,.55,1) infinite alternate;animation-delay:calc(var(--bar)*-100ms)}.rhythm-navigation{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:22px 0}.rhythm-state-controls{display:flex;gap:12px;flex-wrap:wrap}.rhythm-state-controls button{min-height:44px;padding:8px 20px;border:0;border-bottom:1px solid transparent;background:transparent;color:var(--muted);font-size:14px}.rhythm-state-controls button[aria-pressed=true]{color:var(--ink);border-color:#4b664b}.rhythm-navigation>.text-button{font-size:13px}
.emotion-comparison{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}.emotion-comparison .emotion-page{padding:42px 38px;min-height:420px;box-shadow:none;transform:rotate(-1.2deg);background:#faf8f2}.emotion-comparison blockquote{font-size:25px;line-height:1.9;min-height:0;margin:20px 0 25px}.emotion-reading{border-top:1px solid var(--line);padding-top:20px;margin-bottom:23px}.emotion-reading>span{font-size:13px;color:#4e6550}.emotion-reading p{font-size:14px;color:var(--muted);line-height:1.8;min-height:51px;margin-top:7px}.emotion-listener{min-width:0}.emotion-listener .emotion-controls{margin:0 0 28px;display:flex;gap:12px}.emotion-listener h3{font-size:24px;min-height:76px;line-height:1.65;max-width:20ch}.emotion-listener>.small-note{margin-top:12px}.emotion-listener .score-rail{height:124px;margin:27px 0 20px;background:transparent}.emotion-playback{display:flex;align-items:center;gap:20px;min-height:58px}.emotion-playback .button{min-width:136px;padding-inline:22px}.emotion-playback>span{font-size:12px;color:var(--muted);max-width:180px}.emotion-listener[data-state=loading] .score-rail{opacity:.4}.emotion-listener[data-state=playing] .score-rail-lines{border-color:#83947b}.emotion-comparison .emotion-page{transition:background-color 250ms var(--ease)}
.showcase-hall{--hall-gold:#dac4a1;color:#f2eadd}.hall-topline{display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#c0c4b7;padding-bottom:24px}.showcase-orchestra-render{position:relative;width:100%;aspect-ratio:2.45;min-height:360px;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 50% 95%,#3b382c44,transparent 61%),#111513}.showcase-orchestra-render:before{content:"";position:absolute;inset:12% 5% 7%;border:1px solid #c8c0a812;border-bottom-color:#c8c0a828;border-radius:50% 50% 9% 9% / 80% 80% 14% 14%}.hall-spotlights{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.6}.hall-spotlights i{position:absolute;top:-12%;width:35%;height:125%;background:linear-gradient(180deg,#e6d2aa1c,#e6d2aa04 70%,transparent);clip-path:polygon(46% 0,54% 0,100% 100%,0 100%);transform-origin:50% 0}.hall-spotlights i:nth-child(1){left:10%;transform:rotate(19deg)}.hall-spotlights i:nth-child(2){left:32.5%}.hall-spotlights i:nth-child(3){right:10%;transform:rotate(-19deg)}.hall-floor{position:absolute;inset:40% 6% -20%;border-radius:50%;background:repeating-radial-gradient(ellipse at 50% 45%,transparent 0 38px,#dbcea909 39px 40px,transparent 41px 78px);transform:perspective(450px) rotateX(48deg);pointer-events:none}#showcase-orchestra-seats{position:absolute;inset:0;z-index:1}.showcase-instrument-seat{position:absolute;left:calc(var(--x)*1%);top:calc(var(--y)*1%);width:calc(var(--size)*1%);min-width:44px;min-height:44px;aspect-ratio:1;transform:translate(-50%,-50%);padding:0;border:0;border-radius:50%;background:transparent;touch-action:manipulation}.showcase-instrument-seat>i{position:absolute;inset:10%;background:#b5aa91;mask:var(--icon-image) center/contain no-repeat;-webkit-mask:var(--icon-image) center/contain no-repeat;opacity:.58;transform:rotate(calc(var(--tilt)*1deg));transition:opacity 250ms,background-color 250ms,transform 350ms cubic-bezier(.16,1,.3,1)}.showcase-instrument-seat[data-family-active=true]>i{opacity:.93}.showcase-instrument-seat[aria-pressed=true]{outline:1px solid #dac4a166;outline-offset:3px}.showcase-instrument-seat[aria-pressed=true]>i,.showcase-instrument-seat:hover>i,.showcase-instrument-seat:focus-visible>i{opacity:1;background:#f3e6cc;transform:rotate(calc(var(--tilt)*1deg)) translateY(-3px)}.showcase-instrument-seat[data-sounding=true]>i{animation:instrument-voice 450ms cubic-bezier(.45,0,.55,1) infinite alternate}.showcase-instrument-seat>span{position:absolute;top:102%;left:50%;translate:-50% 0;color:#f2eadd;background:#111513ed;font-size:11px;padding:2px 6px;white-space:nowrap;opacity:0;pointer-events:none}.showcase-instrument-seat:is(:hover,:focus-visible,[aria-pressed=true])>span{opacity:1}.showcase-instrument-seat:focus-visible{outline:2px solid var(--gold);outline-offset:4px}.showcase-conductor{position:absolute;bottom:0;left:50%;translate:-50% 0;width:56px;height:68px;background:#e1d2b8;opacity:.6;mask:url('/assets/images/conductor/conductor-baton-silhouette.png') center/contain no-repeat;-webkit-mask:url('/assets/images/conductor/conductor-baton-silhouette.png') center/contain no-repeat;pointer-events:none}.showcase-hall>.voice-controls{justify-content:center;margin:30px 0 42px;gap:18px}.showcase-instrument-detail{display:grid;grid-template-columns:200px minmax(0,1fr);gap:44px;max-width:820px;margin:auto;padding:38px 0 26px;border-top:1px solid #344036}.instrument-portrait{display:flex;align-items:center;justify-content:center;min-height:200px;background:#202820}.instrument-portrait img{width:160px;max-height:200px;object-fit:contain;filter:brightness(0) invert(.82) sepia(.18)}.instrument-description>span{font-size:12px;color:var(--gold)}.instrument-description h3{font-size:28px;margin:6px 0 15px}.instrument-description>p{font-size:14px;line-height:1.85;color:#c6cbbc;margin:8px 0}.instrument-description>#showcase-instrument-timbre{font-size:13px;color:#ddceb3}.instrument-member-controls{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0 10px}.instrument-member-controls button{font-size:12px;min-height:44px;padding:8px 11px;border:1px solid #3c493e;background:transparent;color:#c6cbbc;border-radius:4px}.instrument-member-controls button[aria-pressed=true]{color:#f2eadd;border-color:#c5b58f}#showcase-instrument-listen{color:var(--gold);text-decoration:underline;text-underline-offset:6px;padding-left:0}.showcase-instrument-anatomy{margin-top:12px;border-top:1px solid #344036}.showcase-instrument-anatomy summary{min-height:44px;padding-block:10px;cursor:pointer;font-size:13px}.showcase-instrument-anatomy dl{display:grid;grid-template-columns:100px 1fr;gap:12px 20px;font-size:13px}.showcase-instrument-anatomy dt{color:#ddceb3}.showcase-instrument-anatomy dd{margin:0;color:#c6cbbc}.instrument-description>.small-note{font-size:12px;color:#b9c2b3}.showcase-hall .hall-footnote{text-align:center;max-width:none;color:#b9c2b3;margin:22px 0 0}.orchestra-section{padding-bottom:96px}
@keyframes writing-blink{50%{opacity:0}}@keyframes key-arrives{0%,100%{opacity:.18;transform:scale(.7)}40%{opacity:1;transform:scale(1)}}@keyframes ensemble-breath{from{transform:scaleY(.7)}to{transform:scaleY(1)}}@keyframes instrument-voice{from{opacity:.65}to{opacity:1}}
@media(max-width:1000px){.rhythm-lab{gap:40px}.emotion-comparison{gap:40px}.emotion-comparison .emotion-page{padding:30px 26px}.emotion-playback{align-items:start;flex-direction:column;gap:12px}.showcase-orchestra-render{min-height:340px}}
@media(max-width:650px){.rhythm-lab{grid-template-columns:1fr;gap:26px;padding-block:24px}.rhythm-paper{padding:24px;min-height:208px}.rhythm-paper>p{font-size:21px;min-height:98px}.rhythm-response{display:grid;grid-template-columns:100px 1fr;gap:22px;align-items:center}.breath-ensemble{height:115px;gap:4px}.breath-ensemble i{height:calc(var(--height)*.75);width:2px}.rhythm-response-copy{margin:0}.rhythm-response-copy strong{font-size:19px}.rhythm-response-copy p{font-size:13px;min-height:72px}.rhythm-navigation{align-items:start;flex-direction:column;gap:10px}.rhythm-state-controls{gap:5px}.rhythm-state-controls button{padding:8px 14px}.emotion-comparison{grid-template-columns:1fr;gap:40px}.emotion-comparison .emotion-page{min-height:0;padding:30px 24px}.emotion-comparison blockquote{font-size:23px}.emotion-listener h3{font-size:23px;min-height:0}.emotion-listener .emotion-controls{margin-bottom:24px}.emotion-playback{flex-direction:row;align-items:center}.emotion-playback .button{min-width:120px;padding:14px 18px}.emotion-listener .score-rail{margin-top:18px}.hall-topline{flex-direction:column;gap:5px;padding-bottom:16px}.showcase-orchestra-render{min-height:390px;aspect-ratio:auto;margin-inline:-12px;width:calc(100% + 24px)}.showcase-instrument-seat{left:calc(var(--mobile-x)*1%);top:calc(var(--mobile-y)*1%);width:46px;height:46px}.showcase-instrument-seat[data-duplicate=true]{display:none}.showcase-instrument-seat>span{font-size:10px;top:95%}.showcase-conductor{left:54%;bottom:0;width:45px;height:54px}.showcase-hall>.voice-controls{gap:6px;margin:25px 0}.voice-controls button{padding:8px 10px;font-size:12px}.showcase-instrument-detail{grid-template-columns:64px minmax(0,1fr);gap:20px;padding-top:26px}.instrument-portrait{min-height:100px;height:100px}.instrument-portrait img{width:56px;max-height:90px}.instrument-description h3{font-size:25px}.instrument-description>p{font-size:13px}.showcase-instrument-anatomy dl{grid-template-columns:1fr;gap:6px}.showcase-instrument-anatomy dd{margin-bottom:12px}.instrument-member-controls{margin-left:-84px;margin-top:25px}.showcase-hall .hall-footnote{text-align:left}}
@media(prefers-reduced-motion:reduce){.rhythm-lab *,.showcase-hall *,.emotion-comparison *{animation:none!important;transition:none!important}.rhythm-paper,.emotion-comparison .emotion-page{transform:none}}
.keyboard-input .showcase-instrument-seat>i,.keyboard-input .breath-ensemble i{transition:none}
/* First inspection corrections: clear, touch-sized mood selection and bounded portrait. */
.emotion-controls button{min-height:44px;padding:8px 21px;border:1px solid #b8bdae;border-radius:4px;background:transparent;color:#53614f;font-size:14px;transition:background-color 180ms,color 180ms,border-color 180ms}.emotion-controls button[aria-pressed=true]{background:#344b38;color:#faf8f2;border-color:#344b38}.emotion-controls button:active{transform:translateY(1px)}.instrument-portrait{align-self:start}.showcase-instrument-seat[data-duplicate=true]:not(:hover):not(:focus-visible)>span{opacity:0}.showcase-instrument-seat.family-woodwinds>i{background:#bccabd}.showcase-instrument-seat.family-brass>i{background:#d6bf90}.showcase-instrument-seat.family-percussion>i{background:#bdb5a1}.showcase-instrument-seat.family-color>i{background:#d9d5c5}.showcase-instrument-seat[aria-pressed=true]>i{background:#f3e6cc}
@media(prefers-reduced-motion:reduce){.emotion-controls button{transition:none}}
/* Keep the rotated hero record inside the phone viewport while scrolling. */
@media(max-width:520px){.hero-record{right:14px}}

/* Shared playback behavior, in the presentation's paper palette. */
#demo-progress{display:block;width:100%;height:44px;margin:0;accent-color:#536b56;cursor:pointer;touch-action:pan-y}
#demo-progress:focus-visible{outline:2px solid #536b56;outline-offset:3px}
#demo-seek-status{min-height:1.85em}
.record-title-row{display:flex;align-items:center;gap:12px}.record-title-row h3{flex:1}
.record-expand{background:none;border:0;flex:0 0 44px;height:44px;font-size:30px;transition:transform 180ms var(--ease)}
.record-expand[aria-expanded="true"]{transform:rotate(90deg)}
.record-categories{display:flex;gap:24px;margin:24px 0 10px;border-bottom:1px solid var(--line)}
.record-categories button{background:none;border:0;min-height:44px;padding:0 4px;color:var(--muted)}
.record-categories button[aria-pressed="true"]{color:var(--ink);border-bottom:2px solid var(--ink)}
#record-movements{list-style:none;padding:0;margin:22px 0}
#record-movements li{padding:12px 0;border-bottom:1px solid var(--line)}
#record-movements small{display:block;color:var(--muted);font-size:12px}
.seek-dust{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.seek-dust i{position:absolute;width:3px;height:3px;background:#39362f;border-radius:1px;animation:showcase-seek-scatter 240ms var(--ease) forwards}
@keyframes showcase-seek-scatter{from{opacity:.8;transform:translate(0,0) scale(1.4)}to{opacity:0;transform:translate(var(--dx),var(--dy)) scale(.2)}}
@media(prefers-reduced-motion:reduce){.seek-dust{display:none}.record-expand{transition:none}}

/* The demonstration record and writing cursor share its playback state. */
.paper-caret{animation:paper-caret-blink 1.1s steps(1,end) infinite}
.record-rotor{position:relative;width:100%;aspect-ratio:1;animation:record-turn 18s linear infinite;animation-play-state:paused;filter:drop-shadow(0 14px 18px #16161616)}
.record-rotor>img:first-child{width:100%;height:100%}
.record-rotor .record-label-cover{position:absolute;left:38%;top:38%;width:24%;height:24%;border-radius:50%;object-fit:cover;border:2px solid var(--muted)}
.record-spindle{position:absolute;left:49%;top:49%;width:2%;height:2%;border-radius:50%;background:var(--ink)}
.record-preview-button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:44px;width:100%;padding:5px 12px;border:0;background:transparent;font-size:12px;color:var(--muted)}
.record-preview-button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5}
.record-play-icon{fill:currentColor;stroke:none}.record-pause-icon{display:none}
.demo-workspace[data-state=playing] .record-play-icon{display:none}.demo-workspace[data-state=playing] .record-pause-icon{display:block}
.demo-record-wrap .record-caption{margin-top:0}
.hero-footnote{position:absolute;right:0;bottom:37px;text-align:right;max-width:none}
.writing-caret{display:none;height:1.05em;width:1px;border:0;background:var(--muted);margin-left:5px;vertical-align:-.1em}
.demo-workspace[data-state=playing] .writing-caret{display:inline-block;animation:writing-caret-breathe 2.2s cubic-bezier(.45,0,.55,1) infinite}
.demo-workspace[data-state=paused] .writing-caret{display:inline-block;opacity:.6}
.emotion-footnote{max-width:78ch;margin:40px 0 0 auto;text-align:right}
@keyframes paper-caret-blink{50%{opacity:0}}
@keyframes writing-caret-breathe{0%,100%{opacity:.25}50%{opacity:1}}
@media(max-width:800px){.hero{padding-bottom:112px}.hero-scroll{bottom:65px}.hero-footnote{bottom:24px}.emotion-footnote{margin-top:32px}}
@media(max-width:520px){.demo-record-wrap{z-index:2}.demo-record-wrap .record-preview-button{padding-inline:0}.demo-record-wrap .record-preview-button>span{display:none}.demo-writing h3{min-height:95px}}
@media(prefers-reduced-motion:reduce){.paper-caret,.writing-caret{animation:none!important;opacity:1}.record-rotor{animation:none;transform:none}}

#demo-progress{appearance:none;-webkit-appearance:none;background:transparent;border:0;overflow:visible}
#demo-progress::-webkit-slider-runnable-track{height:3px;background:#d8d5cb;border-radius:3px}
#demo-progress::-webkit-slider-thumb{appearance:none;-webkit-appearance:none;width:12px;height:12px;margin-top:-4.5px;border-radius:50%;background:#536b56}
#demo-progress::-moz-range-track{height:3px;background:#d8d5cb;border:0}
#demo-progress::-moz-range-thumb{width:12px;height:12px;border:0;border-radius:50%;background:#536b56}
/* Story-first introduction: the writing task leads, musical detail follows. */
.hero{grid-template-columns:1fr 1.08fr;gap:48px}
.hero h1{font-size:clamp(36px,3.6vw,52px);line-height:1.55}
.hero-purpose{font-size:18px;margin-top:26px;color:var(--ink)}
.hero .lead{max-width:29em;margin:14px 0 30px;line-height:1.95}
.hero-scene{padding:20px 8px 74px;min-height:480px}
.hero-paper{transform:none;padding:28px 32px 36px;min-height:360px}
.hero-document-bar{display:flex;justify-content:space-between;gap:16px;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:25px}
.hero-paper .paper-title{font-size:19px;color:var(--ink)}
.hero-paper>p{white-space:normal;font-size:clamp(16px,1.3vw,19px);line-height:2.1;margin-top:14px}
.hero-writing-state{font-size:12px;color:var(--muted);margin-top:18px}
.hero-paper .mini-staff{margin-top:22px;margin-right:70px}
.hero-music-state{font-size:13px;color:#3c4b3e;margin-top:14px;padding-right:135px}
.hero-music-state>span{display:block;font-size:11px;color:var(--muted);margin-top:4px}
.hero-record{width:180px;right:-10px;bottom:0}
.writing-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;padding:0 0 30px;margin:0 auto 32px;max-width:1100px;list-style:none;counter-reset:writing-step;border-bottom:1px solid var(--line)}
.writing-steps li{counter-increment:writing-step;position:relative;padding-left:30px}
.writing-steps li:before{content:counter(writing-step);position:absolute;left:0;top:2px;font-size:13px;color:var(--muted)}
.writing-steps strong{font-size:15px;font-weight:500}.writing-steps span{display:block;font-size:13px;color:var(--muted);margin-top:6px}
#rhythm .section-heading{align-items:start}#rhythm h2,#album h2{font-size:clamp(30px,3vw,42px)}
.orchestra-section{padding-block:36px;background:var(--stage)}
.orchestra-summary{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;cursor:pointer;list-style:none;color:#f2eadd;font-size:20px}
.orchestra-summary::-webkit-details-marker{display:none}.orchestra-summary small{display:block;font-size:13px;color:#c6cbbc;margin-top:5px}
.orchestra-summary svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;flex:none}
#orchestra-explore[open]>.orchestra-summary svg{transform:rotate(180deg)}
.orchestra-exploration{padding-top:70px;padding-bottom:30px}
@media(max-width:1100px) and (min-width:801px){.hero{gap:28px}.hero h1{font-size:36px}.hero-paper{padding:24px}.hero-paper>p{font-size:16px}.hero-purpose{font-size:16px}.hero-record{width:148px}}
@media(max-width:800px){.hero{grid-template-columns:1fr;gap:36px}.hero h1{font-size:clamp(32px,6vw,48px)}.hero-scene{min-height:0;padding-bottom:68px}.hero-paper{min-height:0}.hero-record{width:150px;right:0}.hero-purpose{font-size:16px}.hero-footnote{text-align:left}.writing-steps{gap:20px}.writing-steps li{padding-left:24px}}
@media(max-width:520px){.hero{padding-bottom:105px}.hero h1{font-size:clamp(28px,8.2vw,38px)}.hero-purpose{font-size:15px;margin-top:22px}.hero .lead{font-size:14px;margin-top:12px}.hero-paper{padding:22px 20px}.hero-paper>p{font-size:16px}.hero-paper>p br{display:none}.hero-paper .paper-title{font-size:18px}.hero-document-bar{font-size:11px;gap:8px}.hero-music-state{padding-right:75px}.hero-record{width:125px}.hero-paper .mini-staff{margin-right:30px}.writing-steps{grid-template-columns:1fr;gap:18px}.writing-steps span{margin-top:3px}.orchestra-summary{font-size:18px}.orchestra-exploration{padding-top:42px}.hero-scroll{bottom:60px}}

/* Concrete writing tasks, progressively enhanced from readable linked examples. */
.scenarios-section{border-top:1px solid var(--line)}
.scenario-layout{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:80px;align-items:start}
.scenario-options{display:flex;flex-direction:column;gap:0}
.scenario-option{display:block;position:relative;padding:26px 18px 26px 0;border-bottom:1px solid var(--line);text-decoration:none;min-height:44px}
.scenario-option:first-child{padding-top:4px}
.scenario-task{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}
.scenario-option strong{display:block;font-family:"Showcase Serif","Songti SC",SimSun,serif;font-weight:500;font-size:23px;line-height:1.65}
.scenario-description{display:block;color:var(--muted);font-size:14px;line-height:1.9;margin-top:10px;max-width:28em}
.scenario-option[aria-selected=true] strong{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:7px;text-decoration-color:#536b56}
.scenario-option:hover strong{color:#3c4b3e}
.scenario-option:focus-visible,.scenario-panel:focus-visible{outline:2px solid #536b56;outline-offset:6px}
.scenario-panel{min-width:0;scroll-margin-top:32px}
.scenario-panel+.scenario-panel{margin-top:42px}
.scenario-options[role=tablist]+.scenario-previews .scenario-panel{margin-top:0}
.scenario-paper{background:#f1eee5;padding:30px 34px 36px;min-height:332px}
.scenario-paper-meta{display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:12px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:24px}
.scenario-paper h3{font-size:24px;margin-bottom:16px}
.scenario-context{font-size:14px;line-height:1.95;color:var(--muted);margin-bottom:18px}
.scenario-prose{font-family:"Showcase Serif","Songti SC",SimSun,serif;font-size:20px;line-height:1.95}
.scenario-response{display:grid;gap:20px;margin:26px 0 0}
.scenario-response>div{display:grid;grid-template-columns:105px minmax(0,1fr);gap:16px}
.scenario-response dt{font-size:13px;color:#3c4b3e;padding-top:2px}
.scenario-response dd{margin:0;font-size:14px;line-height:1.95;color:var(--muted)}
.scenario-revision>p{margin-top:18px}.scenario-revision>p>span:first-child{display:block;font-size:12px;color:var(--muted);margin-bottom:7px}
.scenario-original{font-size:17px;color:var(--muted);line-height:1.9}
.scenario-next{margin-top:44px;text-align:right}
@media(max-width:1100px){.scenario-layout{gap:42px}.scenario-option strong{font-size:21px}.scenario-paper{padding:26px}}
@media(max-width:800px){.site-header nav>.scenario-nav{display:inline-flex}.site-header nav>.rhythm-nav{display:none}.scenario-layout{grid-template-columns:1fr;gap:36px}.scenario-paper{min-height:0}.scenario-option{padding:20px 0}.scenario-option strong{font-size:22px}.scenario-description{max-width:none;margin-top:6px}.scenario-task{margin-bottom:4px}.scenario-next{text-align:left;margin-top:30px}}
@media(max-width:520px){.site-header nav{gap:16px}.site-header nav>.demo-nav{display:none}.scenario-paper{padding:24px 22px}.scenario-paper-meta{font-size:11px;gap:10px}.scenario-paper h3{font-size:23px}.scenario-prose{font-size:19px}.scenario-response>div{grid-template-columns:1fr;gap:5px}.scenario-response{gap:18px}.scenario-option strong{font-size:21px}}
@media(max-width:800px){.site-header nav>a.scenario-nav{display:inline-flex}.site-header nav>a.rhythm-nav{display:none}}