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saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 0 0 1px #ffffff1f}.style-switch button{min-height:2.1rem;padding:.4rem .95rem;border:0;border-radius:999px;color:#ffffffbd;background:transparent;font-family:var(--ui);font-size:.8rem;font-weight:500;cursor:pointer;transition:color .18s ease,background-color .22s ease}.style-switch button:hover{color:#fff}.style-switch button[aria-pressed=true]{color:var(--ink);background:#fffffff0}.trail-hint{color:#ffffff94;font-family:var(--ui);font-size:.74rem}.trail-bar{display:grid;grid-template-columns:auto auto minmax(0,1fr) auto;align-items:center;gap:clamp(.6rem,1.2vw,1rem)}.trail-play{display:grid;width:2.2rem;height:2.2rem;place-items:center;border-radius:50%;color:#fff;background:#ffffff1f}.trail-play svg{width:1rem;height:1rem}.trail-track{position:relative;min-width:0}.trail-preview{position:absolute;bottom:calc(50% + 1.9rem);left:clamp(4.75rem,var(--px, 50%),calc(100% - 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.feature-grid{min-height:0}.boost-grid{position:relative;z-index:3;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(3rem,5vw,4.5rem) clamp(1.5rem,3vw,2.5rem);max-width:92rem;margin:clamp(3rem,6vh,4.5rem) auto 0}.boost-card{display:grid;align-content:start;gap:1.5rem;min-width:0}.boost-card.is-wide{grid-column:1 / -1;grid-template-columns:minmax(0,1.9fr) minmax(16rem,1fr);align-items:center;gap:clamp(1.5rem,4vw,4rem)}.boost-copy h3{margin:0 0 .7rem;font-family:var(--display);font-size:clamp(1.6rem,2.4vw,2.2rem);font-weight:700;letter-spacing:-.035em}.locale-zh .boost-copy h3{font-family:var(--zh-display);font-weight:600;letter-spacing:-.01em}.boost-copy p{max-width:44ch;margin:0;color:#fffc;font-family:var(--body);font-size:1rem;line-height:1.6}.boost-note{display:block;max-width:48ch;margin-top:1rem;color:#ffffff85;font-family:var(--ui);font-size:.8rem;line-height:1.55}.frame-legend{display:flex;flex-wrap:wrap;gap:.5rem 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90%))}.bright-bloom{top:0;right:0;bottom:0;left:0;background:radial-gradient(18% 22% at 71% 23%,rgb(255 246 220 / 38%) 0%,transparent 100%),radial-gradient(60% 18% at 50% 88%,rgb(255 184 110 / 22%) 0%,transparent 100%);mix-blend-mode:screen}.turbo-frame{aspect-ratio:16 / 10;cursor:default}.turbo-frame .turbo-scene{position:absolute;top:0;right:0;bottom:0;left:0}.kyoto-cloud{top:18%;left:0;width:42%;height:12%;border-radius:50%;background:radial-gradient(closest-side,rgb(150 165 220 / 34%),transparent);filter:blur(4px);transform:translate(calc(110% - var(--drift, 0px) * .5))}.kyoto-cloud-b{top:30%;width:30%;height:8%;transform:translate(calc(240% - var(--drift, 0px) * .8))}.turbo-hud{position:absolute;top:clamp(.8rem,2vw,1.4rem);left:50%;z-index:2;display:inline-flex;align-items:center;gap:.55rem;height:2rem;padding:0 .9rem 0 .75rem;border-radius:999px;color:#fff;background:#00000094;font-family:var(--ui);opacity:0;transform:translate(-50%,-.4rem) scale(.94);transition:opacity .18s 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