.physics-secret{background:transparent;color:var(--rose);font:22px Georgia,serif;vertical-align:middle;width:46px;height:44px;border-radius:50%;padding:0;margin:0 10px;transition:background .3s,transform .6s}.physics-secret:hover{background:var(--rose-light);transform:rotate(-12deg)}.letter-paper{position:relative}.flower-secret{position:absolute;right:20px;top:9px;width:65px;height:65px;background:none;padding:4px;transform:rotate(8deg);transition:transform .4s;z-index:2}.flower-secret:hover{transform:rotate(-7deg) scale(1.1)}.flower-secret img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 3px 3px #96363018)}.quiet-secret{background:none;color:var(--muted);font-size:13px;margin-top:12px;padding:7px 15px;min-height:35px;border-bottom:1px solid var(--line)}.secret-book-open{background:var(--surface);color:var(--muted);border:1px solid var(--line);font-size:13px;border-radius:22px;padding:10px 16px;min-height:40px;margin-top:12px;display:inline-flex;align-items:center;gap:12px}.secret-book-open>span{color:var(--rose);font-size:12px;font-variant-numeric:tabular-nums}.special-dialog{width:min(980px,94vw);max-height:94dvh}.special-dialog[data-kind=quiet]{width:min(750px,94vw)}.special-dialog[data-kind=physics]{background:#171a2a;color:#e0dbea;--rose:#d4bbdf;--line:#aaa4ca33;--muted:#aba4bc;--surface:#202438;--on-accent:#261d30}.special-dialog .dialog-top{margin-bottom:10px}#special-content{min-height:130px}.physics-intro{text-align:center;padding:10px 0}.physics-kicker{font-size:10px;letter-spacing:.22em;color:#a6a0bd}.physics-intro h3{font:27px/1.5 var(--serif);margin:14px 0 10px;font-weight:400}.physics-note{color:#b6adc7;font-size:14px;margin:8px 0 23px}.formula-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin:0 0 24px}.formula-grid>div{padding:17px 8px;background:#c8bdec08;border:1px solid #c8bdec18;border-radius:14px;display:flex;flex-direction:column;gap:12px;align-items:center}.formula-grid small{font-size:12px;color:#a59aba}.formula-grid b{font:italic 21px/1.5 Georgia,'Times New Roman',serif;color:#e6d8bb;font-weight:400}.formula-grid span{font-size:12px;line-height:1.7;color:#b2a8bc;max-width:210px}.physics-show canvas{display:block;width:100%;height:clamp(240px,45vh,420px);background:radial-gradient(ellipse at center,#35324d45,transparent 70%)}.physics-caption{color:#e1d2b4;font:21px/1.6 var(--serif);min-height:34px;text-align:center;margin:0 0 9px}.physics-controls{display:flex;align-items:center;justify-content:center;gap:14px}.physics-controls .text-button{color:#c8b9d8;font-size:13px}.physics-dots{display:flex;gap:9px}.physics-dots button{width:28px;height:28px;background:#c8bdec0a;color:#c7bfd7;font:12px Georgia,serif;border:1px solid #c8bdec20;border-radius:50%}.physics-dots [aria-pressed=true]{color:#ebdba5;border-color:#ebdba599;background:#ebdba512}.physics-footnote{font-size:11px;line-height:1.5;text-align:center;color:#8f869f;margin:6px 0 0}
.flower-note{display:flex;align-items:center;justify-content:center;gap:22px;margin:15px 0 24px}.flower-note img{height:100px;width:100px;object-fit:contain;transform:rotate(-8deg)}.flower-note h3{font:25px/1.5 var(--serif);margin:0 0 8px;font-weight:400}.flower-note p{font-size:14px;line-height:1.8;color:var(--muted);margin:0}.flower-choices{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.flower-choices button{border:1px solid var(--line);border-radius:17px;background:var(--surface);color:var(--ink);font-size:14px;padding:18px 8px;min-height:55px;transition:transform .2s,background .2s}.flower-choices button:hover{transform:translateY(-3px);background:var(--rose-light)}.flower-diary{margin-top:24px;padding:20px 25px 8px;border:1px solid var(--line);border-radius:14px;background:repeating-linear-gradient(transparent 0 33px,var(--line) 34px,transparent 35px)}.flower-diary>span{font:15px var(--serif);color:var(--muted)}#flower-stickers{display:flex;flex-wrap:wrap;align-items:center;gap:9px;min-height:91px;padding:12px 0}#flower-stickers img{width:60px;height:60px;object-fit:contain;transform:rotate(var(--turn));filter:drop-shadow(0 3px 3px #9e483312)}#flower-message{font:16px/1.7 var(--serif);color:var(--rose);min-height:27px;margin:0 0 10px;text-align:center}
.quiet-space{position:relative;isolation:isolate;overflow:hidden;min-height:380px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:40px 20px;border-radius:23px}.quiet-glow{position:absolute;z-index:-1;width:320px;height:320px;left:50%;top:50%;border-radius:50%;transform:translate(-50%,-50%);background:radial-gradient(circle,#e3beab3c,transparent 68%);animation:quiet-tide 12s ease-in-out infinite alternate}.quiet-small{font-size:13px;color:var(--muted);margin:0 0 24px}.quiet-space h3{font:30px/1.7 var(--serif);font-weight:400;color:var(--ink);margin:0}.quiet-line{font-size:14px;color:var(--muted);line-height:1.8;margin:22px 0}.quiet-actions{display:flex;gap:18px}.quiet-actions button{background:none;border-bottom:1px solid var(--line);padding:10px 7px;font-size:13px;color:var(--rose)}.quiet-goodnight{font:28px/1.9 var(--serif);color:var(--ink)}.quiet-goodnight small{font:14px/1.8 var(--sans);color:var(--muted)}.just-stay .quiet-small,.just-stay h3,.just-stay .quiet-actions{opacity:.25;transition:opacity 2s}.just-stay .quiet-line{font-size:22px;transition:font-size 1s}.quiet-space button:focus-visible{opacity:1}@keyframes quiet-tide{to{transform:translate(-50%,-50%) scale(1.18);opacity:.65}}
.secret-book{width:min(700px,94vw)}#book-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.secret-item{display:flex;flex-direction:column;text-align:left;gap:12px;border:1px solid var(--line);border-radius:16px;padding:17px 13px;background:transparent;font-size:13px;color:var(--muted);min-height:126px}.secret-item.discovered{background:color-mix(in srgb,var(--rose) 7%,transparent);color:var(--ink)}.secret-number{font:18px Georgia,serif;color:var(--rose);opacity:.65}.secret-item small{font-size:11px;color:var(--muted);line-height:1.5}.book-note{font-size:12px;line-height:1.8;color:var(--muted);margin:18px 0 0;text-align:center}.hint-lamp{position:fixed;right:16px;top:45%;z-index:60;width:43px;height:49px;border-radius:24px;background:var(--surface);border:1px solid var(--line);color:var(--rose);padding:10px;box-shadow:0 0 18px #d7bb6025}.hint-lamp svg{width:100%;height:100%;filter:drop-shadow(0 0 5px #e3c76d55)}.hint-lamp.found{box-shadow:none}.hint-panel{position:fixed;right:65px;top:39%;z-index:61;width:230px;background:var(--surface);border:1px solid var(--line);border-radius:18px;backdrop-filter:blur(25px);padding:28px 18px 9px;box-shadow:0 10px 50px #48344913}.hint-panel p{font-size:14px;color:var(--ink);line-height:1.8;margin:0 0 6px}.hint-panel>#hint-dismiss{position:absolute;top:5px;right:6px;width:25px;height:25px;font-size:20px;background:none;padding:0}.hint-panel .text-button{font-size:12px;padding:4px 0;min-height:32px}
@media(max-height:650px) and (orientation:landscape){.special-dialog{padding:18px 25px}.physics-intro h3{font-size:23px;margin:8px 0}.physics-kicker{margin:2px 0}.physics-note{margin:6px 0 13px}.formula-grid{gap:8px;margin-bottom:15px}.formula-grid>div{padding:10px 7px;gap:6px}.formula-grid b{font-size:19px}.formula-grid span{font-size:11px}.physics-show canvas{height:42vh;min-height:180px}.physics-caption{font-size:18px;min-height:25px}.flower-note{margin:4px 0 14px;gap:15px}.flower-note img{width:70px;height:70px}.flower-note h3{font-size:22px}.flower-note p{font-size:13px}.flower-choices button{padding:12px 7px;font-size:13px;min-height:45px}.flower-diary{margin-top:14px;padding:12px 18px 3px}#flower-stickers{min-height:65px;padding:8px 0;gap:6px}#flower-stickers img{width:43px;height:43px}.quiet-space{min-height:260px;padding:15px}.quiet-space h3{font-size:26px}.quiet-small{margin-bottom:14px}.quiet-line{margin:15px 0}.quiet-goodnight{font-size:25px}.secret-item{padding:12px;gap:9px;min-height:98px}.secret-book-open{margin-top:7px;padding:7px 15px;min-height:33px;font-size:12px}.quiet-secret{margin-top:5px;font-size:12px;min-height:28px;padding:4px 12px}.flower-secret{width:49px;height:49px;right:15px;top:8px}}
@media(max-height:430px) and (orientation:landscape){.physics-kicker{display:none}.physics-intro h3{font-size:19px;margin:2px 0}.physics-note{font-size:12px;margin:4px 0 8px}.formula-grid{margin-bottom:8px}.formula-grid>div{padding:6px;gap:4px}.formula-grid b{font-size:17px}.formula-grid small{font-size:10px}.formula-grid span{display:none}.physics-intro>.button{min-height:34px;padding:6px 18px;font-size:12px}.physics-show canvas{height:43vh;min-height:150px}.physics-caption{font-size:16px;min-height:22px;margin-bottom:0}.physics-controls{gap:10px}.physics-controls .text-button{min-height:30px;padding:5px}.physics-footnote{display:none}.special-dialog{padding:12px 20px}.special-dialog .dialog-top{margin-bottom:4px}.special-dialog .dialog-top h2{font-size:18px}.flower-note img{width:49px;height:49px}.flower-note h3{font-size:19px;margin:0}.flower-note p{font-size:12px}.flower-note{margin-bottom:8px}.flower-choices{gap:8px}.flower-choices button{font-size:12px;min-height:34px;padding:6px}.flower-diary{margin-top:8px}#flower-stickers{min-height:45px}#flower-stickers img{width:33px;height:33px}#flower-message{font-size:13px;min-height:20px;margin-bottom:3px}.flower-diary>span{font-size:12px}.quiet-space{min-height:215px;padding:8px}.quiet-space h3{font-size:24px}.quiet-small{margin:0 0 8px}.quiet-line{margin:10px 0}.secret-item{min-height:88px;font-size:12px;padding:9px;gap:5px}.secret-item small{font-size:10px}.book-note{margin:8px 0 0;font-size:11px}.secret-book-open{margin-top:4px;min-height:29px;padding:5px 12px}.finale-scene .eyebrow{display:none}.finale-scene .section-title{font-size:22px}.quiet-secret{margin-top:3px;min-height:24px;font-size:11px}.flower-secret{width:40px;height:40px;top:4px;right:9px}.hint-lamp{right:8px;width:37px;height:43px}.hint-panel{right:50px;top:32%;font-size:12px}}
@media(orientation:portrait) and (max-width:700px){.special-dialog{padding:17px 16px}.formula-grid{grid-template-columns:repeat(2,1fr);gap:8px}.formula-grid>div{gap:7px;padding:11px 7px}.formula-grid b{font-size:17px}.formula-grid span{font-size:11px}.physics-intro h3{font-size:22px}.physics-kicker{font-size:8px}.physics-note{font-size:13px;margin-bottom:15px}.physics-show canvas{height:35vh;min-height:230px}.physics-caption{font-size:18px}.physics-controls{gap:7px;flex-wrap:wrap}.physics-dots{gap:7px}.physics-footnote{font-size:10px}.flower-note{gap:11px;margin:8px 0 15px}.flower-note img{width:64px;height:64px}.flower-note h3{font-size:20px}.flower-note p{font-size:12px}.flower-choices{grid-template-columns:repeat(2,1fr);gap:8px}.flower-choices button{font-size:13px;min-height:46px;padding:10px}.flower-diary{padding:15px 12px 5px}.flower-diary>span{font-size:13px}#flower-stickers{gap:5px}#flower-stickers img{width:44px;height:44px}.quiet-space{min-height:350px;padding:20px 8px}.quiet-space h3{font-size:26px}.quiet-goodnight{font-size:23px}#book-list{grid-template-columns:repeat(2,1fr);gap:8px}.secret-item{min-height:106px;font-size:12px;padding:13px 10px}.hint-lamp{right:7px;width:37px;height:43px;top:40%}.hint-panel{right:50px;top:35%;width:min(225px,70vw)}.secret-book-open{margin-top:8px}.flower-secret{width:52px;height:52px;right:10px;top:6px}.quiet-secret{font-size:12px}}
@media(prefers-reduced-motion:reduce){.quiet-glow{animation:none}.flower-secret,.physics-secret{transition:none}.flower-choices button:hover{transform:none}}
.reward-open{display:flex;align-items:center;gap:4px;min-width:44px;min-height:38px;background:none;border:1px solid transparent;border-radius:24px;padding:4px 8px;color:var(--rose);font:13px Georgia,serif}.reward-open img{width:28px;height:28px;object-fit:contain}.reward-open:hover{border-color:var(--line);background:var(--surface)}.reward-toast{position:fixed;bottom:82px;left:50%;transform:translateX(-50%);z-index:80;display:flex;align-items:center;gap:10px;padding:10px 17px;background:var(--surface);color:var(--ink);border:1px solid var(--line);box-shadow:0 8px 35px #37213316;border-radius:26px;font-size:13px;pointer-events:none;backdrop-filter:blur(18px);animation:reward-arrive .5s both}.reward-toast img{width:34px;height:34px;object-fit:contain}.reward-rules{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.reward-rules>span{padding:12px;background:color-mix(in srgb,var(--rose) 5%,transparent);border-radius:12px;color:var(--muted);font-size:13px;display:flex;align-items:center;gap:7px}.reward-rules b{font:17px Georgia,serif;color:var(--rose);margin-left:auto}.reward-rules small{font-size:10px}.flower-note #flower-total{margin-left:auto;font:25px Georgia,serif;color:var(--rose);white-space:nowrap}#reward-history{list-style:none;padding:0;margin:15px 0 0;max-height:180px;overflow:auto}#reward-history li{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:10px 5px;font-size:13px;color:var(--muted)}#reward-history b{color:var(--rose);font:16px Georgia,serif}.reward-once,#reward-empty{font-size:12px;color:var(--muted);line-height:1.7;text-align:center}.reward-once{margin:12px 0 0}.flower-diary #flower-stickers{max-height:172px;overflow:auto}.highfive-pair.sending .hand-yours{animation-duration:calc(var(--clap-duration,760ms) * .46)}.highfive-pair.returning .hand-mine{animation-duration:calc(var(--clap-duration,760ms) * .23)}.highfive-pair.connected .hand-yours,.highfive-pair.connected .hand-mine{animation-duration:calc(var(--clap-duration,760ms) * .5)}.highfive-button.accelerating{background:color-mix(in srgb,var(--rose) 18%,var(--surface));box-shadow:0 0 24px color-mix(in srgb,var(--rose) 15%,transparent)}@keyframes reward-arrive{from{opacity:0;translate:0 12px;scale:.94}to{opacity:1;translate:0 0;scale:1}}
@media(max-height:650px) and (orientation:landscape){.reward-rules>span{font-size:12px;padding:9px}.reward-toast{bottom:58px;font-size:12px;padding:7px 13px}.reward-toast img{width:27px;height:27px}.reward-open img{width:24px;height:24px}.reward-open{min-height:34px}.flower-diary #flower-stickers{max-height:95px}#reward-history{max-height:125px}.flower-note #flower-total{font-size:21px}}
@media(max-height:430px) and (orientation:landscape){.reward-rules>span{font-size:11px;padding:7px}.reward-rules{gap:5px}.reward-rules b{font-size:15px}.flower-note #flower-total{font-size:20px}.flower-diary #flower-stickers{max-height:65px}#reward-history{max-height:85px;margin-top:8px}#reward-history li{font-size:11px;padding:7px}.reward-toast{bottom:43px;font-size:11px}}
@media(orientation:portrait) and (max-width:700px){.topbar{left:16px;right:16px}.top-actions{gap:3px}.sound-control{min-width:36px;width:36px;padding:6px;justify-content:center}.sound-control #sound-label{display:none}.reward-open{padding:4px;min-width:42px;font-size:12px}.reward-open img{width:25px;height:25px}.reward-rules>span{font-size:11px;padding:9px;gap:4px}.reward-rules small{display:none}.reward-rules b{font-size:15px}.flower-note #flower-total{font-size:18px}.reward-toast{max-width:90vw;white-space:nowrap;font-size:11px;bottom:75px;padding:8px 12px}.reward-toast img{width:27px;height:27px}.flower-diary #flower-stickers{max-height:135px}#reward-history{max-height:140px}.highfive-message{font-size:12px}}