/* Folded local refinement layer, followed by the integration overrides that originally loaded after it. */
/* October 6: a quieter product-page frame around the retained fusion scene. */
:root{--paper:#fafaf7;--ink:#243a2e;--quiet:#5e685f;--line:#dce1d9;--header:72px;--display:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}
.navigation{padding-inline:max(5vw,calc((100vw - 1280px)/2));background:var(--paper)}
.brand{font:600 23px/1 var(--display);letter-spacing:-.04em}.brand-ring{width:23px;height:23px}.nav-create{border-radius:30px;min-height:36px;font-size:12px;padding-inline:19px}.nav-create span{display:none}.reading-progress{height:1px}
.hero{display:flex;flex-direction:column;padding:0;min-height:0;overflow:clip}
.hero-copy{padding:76px 5vw 50px;align-items:center;text-align:center}
.hero-kicker{font-size:20px;font-weight:600;letter-spacing:.08em}
.hero h1{font:650 clamp(48px,6.1vw,92px)/1.16 var(--display);letter-spacing:-.065em;margin:22px 0 0}
.hero h1 span+span{margin-top:8px}.hero-description{font-size:18px;line-height:1.7;margin-top:26px;color:var(--quiet)}
.hero-actions{margin-top:28px;gap:30px}.solid-link{min-height:48px;border-radius:30px;padding-inline:26px;gap:24px;font-size:14px}.solid-link span{font-size:20px}.underlined{border:0;font-size:14px}.underlined:hover{text-decoration:underline;text-underline-offset:5px}
.hero-art{margin:8px auto 0;width:min(1440px,92vw);height:clamp(380px,47vw,660px);min-height:0;border-radius:28px;background:#6f7764}
.hero-art img{object-position:50% 58%;transform:scale(var(--hero-scale,1.04)) translateY(var(--hero-shift,0px))}.hero-art figcaption{font-size:13px;bottom:32px;right:36px}.hero-art:after{inset:70% 0 0}
.idea{padding-block:145px 160px;text-align:center;max-width:1000px}.idea .section-label{justify-content:center;font-size:15px;margin-bottom:28px}.idea .section-label span{display:none}
.idea h2{font:650 clamp(38px,4.6vw,68px)/1.22 var(--display);letter-spacing:-.06em}.idea h2>span{color:inherit}
.idea-detail{display:block;max-width:650px;margin:36px auto 0}.idea-detail p{font-size:18px;line-height:1.9;color:var(--quiet)}.idea-detail p+p{margin-top:18px}
.listen{padding-block:120px 100px;width:min(1160px,88vw)}.listen .section-label{font-size:14px}.listen-heading{grid-template-columns:1.2fr 1fr;gap:6vw;margin-bottom:48px}.listen-heading h2,.how h2{font:650 clamp(38px,4.3vw,64px)/1.22 var(--display);letter-spacing:-.055em}.listen-heading p{font-size:16px;line-height:1.8}
.players{display:grid;grid-template-columns:1fr 1fr;gap:20px;border:0}.player,.enhanced.player{padding:30px;grid-template-columns:1fr 52px;gap:26px;border:0;border-radius:24px;background:#eef0e9;min-width:0}.track-info h3{font:600 22px/1.4 var(--display);letter-spacing:-.025em;margin-top:12px}.track-info>span{font-size:12px;letter-spacing:0}.play{width:52px;height:52px;border:0;background:#fff}.enhanced .track-timeline{grid-column:1/-1}.wave-area{height:74px}.track-time{font-size:11px;margin-top:14px}
.final-player,.enhanced.final-player{grid-column:1/-1;grid-template-columns:1fr 60px 1.6fr;padding:42px;margin:0;background:var(--dark);color:#fafaf7;column-gap:36px}.final-player .track-timeline{grid-column:auto}.final-player .track-info>span,.final-player .track-time{color:#cbd5c6}.final-player .track-info h3{font-size:25px}.final-player .play{width:60px;height:60px;background:#e2eadb;color:#193328}.final-player .play:hover{background:#fff}.final-player .base-wave{fill:#6b8171}.final-player .played-wave{fill:#e6eddf}.final-player .wave-area input::-webkit-slider-thumb{background:#e6eddf}.final-player .wave-area input::-moz-range-thumb{background:#e6eddf}.audio-note{font-size:12px;margin:22px 4px 0}
.how{padding-block:70px 130px;width:min(1160px,88vw)}.how .section-label{font-size:14px}.how ol{gap:60px;margin-top:60px}.how li{border:0;padding:0}.how li>span{font:600 22px/1 var(--display);color:#6c7a69}.how h3{font:600 24px/1.3 var(--display);margin:20px 0 16px}.how li p{font-size:16px;line-height:1.8}
.invitation{background:#e9ede4;padding:110px 6vw 100px}.invitation-lead{font-size:16px;color:var(--quiet)}.invitation h2{font:650 clamp(40px,5.4vw,80px)/1.2 var(--display);letter-spacing:-.06em;margin:28px 0 36px}.privacy{font-size:12px;margin-top:28px}footer{font-size:12px;padding-block:24px}
/* Reveal once on approach. Without JS, everything stays visible. */
.reveal-pending{opacity:0;transform:translate3d(0,26px,0);transition:opacity .8s var(--ease),transform 1s var(--ease);transition-delay:var(--reveal-delay,0ms)}.reveal-pending.is-revealed{opacity:1;transform:translate3d(0,0,0)}
@media(max-width:900px){.hero-copy{padding:60px 5vw 40px}.hero h1{font-size:clamp(43px,7.5vw,68px)}.hero-description{font-size:16px}.hero-art{width:92vw;height:52vw;min-height:300px;border-radius:22px}.idea{padding-block:100px 110px}.idea-detail{max-width:580px}.idea-detail p{font-size:16px}.listen{padding-block:90px 70px}.listen-heading{grid-template-columns:1fr;gap:26px}.listen-heading p{font-size:15px}.player,.enhanced.player{padding:26px;gap:22px}.final-player,.enhanced.final-player{grid-template-columns:1fr 52px;padding:32px}.final-player .track-timeline{grid-column:1/-1}.final-player .play{width:52px;height:52px}.how{padding-block:45px 90px}.how ol{gap:30px}.how h3{font-size:21px}.how li p{font-size:14px}.invitation{padding-block:90px}}
@media(max-width:600px){:root{--header:64px}.navigation{padding-inline:5vw}.brand{font-size:21px}nav{gap:17px}.nav-create{font-size:11px;padding-inline:15px}.hero-copy{padding:48px 5vw 34px}.hero-kicker{font-size:16px}.hero h1{font-size:10.3vw;margin-top:20px;letter-spacing:-.06em}.hero-description{font-size:14px;margin-top:22px}.hero-actions{margin-top:24px;gap:24px}.solid-link{min-height:46px;padding-inline:22px;font-size:13px}.underlined{font-size:13px}.hero-art{height:84vw;min-height:0;border-radius:18px}.hero-art img{object-position:61% 55%}.hero-art figcaption{font-size:11px;bottom:22px;right:22px}.idea{padding-block:90px 100px}.idea h2{font-size:8.7vw}.idea .section-label{font-size:13px;margin-bottom:24px}.idea-detail{margin-top:28px}.idea-detail p{font-size:15px;line-height:1.9}.listen{padding-block:80px 60px}.listen-heading h2{font-size:9.5vw}.listen .section-label{font-size:12px}.players{grid-template-columns:1fr;gap:14px}.player,.enhanced.player{padding:24px;gap:20px;border-radius:20px}.track-info h3{font-size:21px}.track-info>span{font-size:11px}.final-player,.enhanced.final-player{padding:28px 24px;grid-template-columns:1fr 48px}.final-player .track-info h3{font-size:22px}.final-player .play{width:48px;height:48px}.wave-area{height:60px}.audio-note{font-size:11px}.how h2{font-size:9vw}.how ol{grid-template-columns:1fr;gap:34px;margin-top:40px}.how li{grid-template-columns:42px 1fr;gap:0 18px}.how li>span{font-size:20px;padding-top:4px}.how h3{margin:0 0 10px}.how li p{font-size:14px}.invitation{padding-block:80px}.invitation-lead{font-size:13px}.invitation h2{font-size:8.5vw;margin-top:24px}footer{font-size:11px}.reveal-pending{transform:translate3d(0,18px,0)}}
@media(prefers-reduced-motion:reduce){.reveal-pending{opacity:1;transform:none;transition:none}.hero-art img{transform:none}}

/* Restore the previous editorial serif, dark-cover treatment and dotted Shisheng mark. */
:root{--paper:#f7f5eb;--ink:#263b2a;--quiet:#596351;--line:#c7ccbd;--dark:#193328;--header:84px;--serif:'Songti SC','STSong','SimSun',Georgia,serif;--display:var(--serif)}
.brand,.wordmark{display:flex;align-items:center;gap:11px;font:400 26px/1 var(--serif);letter-spacing:.05em}
.mark{display:inline-flex;width:27px;height:27px;flex:none;align-items:center;justify-content:center;border:2px dotted var(--ink);border-radius:50%;background:transparent}.mark i{display:none}
.hero{position:relative;display:block;width:calc(100% - 48px);max-width:1440px;height:min(800px,calc(100svh - var(--header) - 24px));min-height:680px;margin:0 auto 24px;padding:0;overflow:hidden;background:#263b2a;color:var(--paper);border-radius:3px}
.hero-copy{position:relative;z-index:1;width:min(760px,68%);padding:clamp(60px,7vw,110px) 0 70px clamp(36px,7vw,112px);text-align:left;align-items:flex-start}
.hero .opening-line{display:block;margin-bottom:30px;color:var(--paper);font:400 1rem/1.5 Merriweather,Georgia,serif;letter-spacing:0}
.hero h1{max-width:15ch;margin:0 0 27px;font:400 clamp(3.4rem,5.6vw,6.2rem)/1.32 var(--serif);letter-spacing:-.035em;white-space:normal}
.hero h1 span{display:inline;color:inherit;white-space:nowrap}.hero-lede{max-width:28rem;margin:0 0 27px;color:#f4f4e9;font-size:1rem;line-height:2}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:26px;margin:0}.hero .button-primary{display:inline-flex;min-height:52px;align-items:center;justify-content:center;padding:0 24px;border:1px solid var(--paper);border-radius:0;background:var(--paper);color:var(--ink);font-size:15px;font-weight:650}.hero .button-primary:hover{background:#e1e3d4}.hero .text-link{color:var(--paper);font-size:14px;text-decoration:underline;text-underline-offset:6px}
.hero-note{margin:22px 0 0;color:#eceddf;font-size:.86rem}.sound-field{position:absolute;inset:0;z-index:0;width:100%;max-width:none;height:100%;margin:0;border:0;border-radius:0;overflow:hidden}.sound-field:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,28,16,.81) 0%,rgba(15,28,16,.53) 40%,rgba(15,28,16,.08) 80%);pointer-events:none}.sound-field img{width:100%;height:100%;object-fit:cover;object-position:50% 55%;transform:scale(var(--hero-scale,1.04)) translateY(var(--hero-shift,0px))}.sound-field figcaption{position:absolute;z-index:1;right:38px;bottom:28px;color:var(--paper);font-size:.76rem}
/* All content headings return to the prior Chinese serif; body copy keeps its earlier readable sans face. */
.hero h1,.idea h2,.listen-heading h2,.how h2,.invitation h2,.track-info h3,.how h3{font-family:var(--serif);font-weight:400;letter-spacing:-.035em}
.idea h2,.listen-heading h2,.how h2,.invitation h2{line-height:1.4}
.track-info h3{letter-spacing:0}
.reveal-pending{opacity:0;transform:translate3d(0,24px,0);transition:opacity .72s var(--ease),transform .9s var(--ease)}.reveal-pending.is-revealed{opacity:1;transform:translate3d(0,0,0)}
@media(max-width:900px){:root{--header:72px}.hero{width:calc(100% - 24px);height:min(760px,calc(100svh - var(--header) - 16px));min-height:640px}.hero-copy{width:100%;padding:48px 26px 60px}.hero .opening-line{margin-bottom:20px;font-size:.86rem}.hero h1{max-width:13ch;font-size:clamp(2.5rem,10vw,4.3rem);line-height:1.35}.hero h1 span{white-space:normal}.hero-lede{max-width:20rem;font-size:.93rem}.hero-note{max-width:18rem}.sound-field img{object-position:60% 55%}.sound-field:after{background:linear-gradient(90deg,rgba(15,28,16,.72),rgba(15,28,16,.27)),linear-gradient(0deg,rgba(15,28,16,.4),transparent 44%)}.sound-field figcaption{right:22px;bottom:22px}}
@media(max-width:480px){:root{--header:68px}.brand,.wordmark{font-size:23px;gap:9px}.mark{width:24px;height:24px}.navigation{padding-inline:5vw}nav{gap:14px;font-size:12px}.nav-create{padding-inline:13px;gap:10px}.hero{min-height:620px}.hero-copy{padding:44px 22px 45px}.hero h1{max-width:none;font-size:clamp(2.15rem,10vw,3.15rem);letter-spacing:-.045em}.hero-lede{font-size:.9rem}.hero .button-primary{min-height:48px;padding-inline:20px;font-size:14px}.hero .text-link{font-size:13px}.sound-field img{object-position:58% 52%}.idea h2,.listen-heading h2,.how h2,.invitation h2{font-weight:400}.reveal-pending{transform:translate3d(0,18px,0)}}
@media(prefers-reduced-motion:reduce){.reveal-pending{opacity:1;transform:none;transition:none}.hero img{transform:none}}

/* October 6 screenshot corrections: restore prior gutters; refine copy width and footer identity. */
:root{--header:92px}
.navigation{padding-inline:clamp(28px,5vw,96px)}
.hero{max-width:none;width:calc(100% - 48px);margin-bottom:24px}
.idea-detail{max-width:min(920px,90vw);margin-top:36px}
.idea-detail p{font-size:17px;line-height:1.9}
.listen-heading{grid-template-columns:minmax(0,1fr);margin-bottom:48px}
footer.wrap{display:flex;align-items:end;justify-content:space-between;gap:24px;padding-block:34px}
.footer-signature{display:flex;flex-direction:row;align-items:center;gap:16px}
.footer-brand{display:inline-flex;align-items:center;gap:11px;font:400 25px/1 var(--serif);letter-spacing:.05em}
.footer-brand .mark{width:27px;height:27px}
.footer-tagline{font:400 13px/1.6 'Microsoft YaHei','PingFang SC',sans-serif;color:var(--quiet)}
@media(max-width:900px){:root{--header:72px}.navigation{padding-inline:5vw}.idea-detail{max-width:min(760px,88vw)}.listen-heading{margin-bottom:32px}}
@media(max-width:480px){:root{--header:68px}.navigation{padding-inline:5vw}.idea-detail{max-width:100%}.idea-detail p{font-size:15px}footer.wrap{align-items:flex-start;flex-direction:column;padding-block:28px}.footer-signature{gap:10px}.footer-tagline{font-size:12px}}
/* October 6 motion review: shorter pin, readable chapter changes, and consistent primary actions. */
:root{--primary-action-radius:999px}
.nav-create{min-height:44px}
.nav-create,.hero .button-primary,.solid-link{border-radius:var(--primary-action-radius)}