/* Native CSS: existing Quiet Field artwork and electric-blue palette. Buttons 12px; player and screenshot 20px. */
:root{color-scheme:dark;--bg:#071220;--text:#edf4fc;--muted:#afc1d7;--line:#2a3d54;--blue:#58bdff;--ink:#032035}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 "Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}a:hover{color:var(--blue)}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}a,button,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}.wrap{width:min(1180px,calc(100% - 80px));margin-inline:auto}.hero-scene{background:linear-gradient(180deg,#071220 0%,#071220bd 44%,#0712204d 76%,#071220 100%),url("assets/mountains.png") center 58%/cover no-repeat}header{height:84px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{font-size:20px;font-weight:650;display:flex;align-items:center;gap:12px;white-space:nowrap}.brand img{object-fit:contain}nav{display:flex;align-items:center;gap:30px;font-size:14px}nav .language{font-size:13px;letter-spacing:.04em}.hero{min-height:570px;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:80px;padding-block:46px 66px}.eyebrow{color:var(--blue);font-size:13px;letter-spacing:.11em;margin:0 0 22px}h1{font:400 clamp(52px,5.8vw,78px)/1.03 Georgia,"Noto Serif SC","Songti SC",serif;letter-spacing:-.045em;margin:0 0 27px}html[lang=zh-CN] h1{font-size:64px;letter-spacing:.01em;line-height:1.22}p{color:var(--muted)}.intro{font-size:18px;max-width:410px;line-height:1.65;margin:0 0 32px}.actions{display:flex;align-items:center;gap:26px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:54px;padding:12px 22px;border-radius:12px;font-size:15px;font-weight:650;white-space:nowrap}.primary{background:var(--blue);color:var(--ink);box-shadow:0 8px 32px #2494ff26}.primary:hover{background:#90d5ff;color:var(--ink)}.button:active,.sample-play:active{transform:scale(.97)}.listen-link{font-size:14px;white-space:nowrap}.preview{background:linear-gradient(145deg,#0e2137e8,#071321ed);border:1px solid #ffffff22;border-radius:20px;padding:28px 28px 20px;box-shadow:0 24px 80px #020a1680;backdrop-filter:blur(14px);scroll-margin-top:32px}.preview h2{font:400 29px/1.25 Georgia,"Songti SC",serif;margin:0 0 8px}.preview-note{font-size:12px;margin:0 0 26px}.sample{display:flex;align-items:center;gap:13px;height:74px;border-top:1px solid var(--line)}.sample-play{border:1px solid #5c8fb680;color:var(--blue);background:#18364a80;border-radius:50%;width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center}.play-mark{font-size:12px;line-height:1}.sample-name{font-size:14px;min-width:0;flex:1}.seconds{font-variant-numeric:tabular-nums;font-size:11px;color:var(--muted)}.wave{display:flex;height:27px;align-items:center;gap:2px;width:61px;flex:0 0 61px}.wave i{display:block;height:var(--h);width:2px;background:#4d86b5;border-radius:2px}.sample.active .wave i{background:var(--blue);animation:breathe .9s ease-in-out infinite alternate}.sample.active .wave i:nth-child(3n){animation-delay:-.6s}.sample.active .wave i:nth-child(2n){animation-delay:-.3s}.sample.active .sample-play{background:var(--blue);color:var(--ink)}.sample-play:disabled{opacity:.65;cursor:wait}.credits-link{display:inline-block;color:var(--muted);font-size:11px;margin-top:15px}.play-error{font-size:13px;color:#ffbabb;margin:0}.play-error:empty{display:none}.facts{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding:18px 0 30px;color:var(--muted);font-size:13px}.showcase{padding-top:78px}.showcase h2,.faq>h2{font:400 40px/1.25 Georgia,"Songti SC",serif;letter-spacing:-.02em;margin:0 0 18px}.showcase>p{max-width:580px;margin:0 0 35px}.showcase figure{margin:0}.screenshot{display:block;width:100%;height:auto;border:1px solid #45617c;border-radius:20px;box-shadow:0 25px 80px #0005}.showcase figcaption{text-align:center;color:var(--muted);font-size:12px;margin:18px 0 0}.features{padding-top:80px}.library-feature{display:grid;grid-template-columns:1fr 2fr;gap:60px;padding:38px 0 55px;border-bottom:1px solid var(--line);align-items:center}.big-number{font:400 110px/1 Georgia,serif;color:var(--blue);display:flex;align-items:baseline;gap:16px}.big-number>span{font:14px/1.4 "Segoe UI",sans-serif;color:var(--muted)}.features h2{font:400 28px/1.35 Georgia,"Songti SC",serif;margin:0 0 16px}.features p{max-width:560px;margin:0 0 15px}.features a{font-size:14px;color:var(--blue)}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:90px;padding:46px 0 60px}.feature-symbol{display:block;color:var(--blue);font:24px/1.4 Georgia,serif;letter-spacing:.05em;margin-bottom:20px}.faq{padding-block:40px 80px;max-width:880px}.faq>h2{margin-bottom:30px}details{border-bottom:1px solid var(--line)}summary{cursor:pointer;padding:19px 0;font-weight:550}details p{margin:0 0 22px;font-size:15px;max-width:74ch}footer{padding:34px 0 36px;border-top:1px solid var(--line)}.footer-top{display:flex;gap:28px;align-items:center;flex-wrap:wrap}.footer-top .brand{flex:1;font-size:17px}.footer-top>a{font-size:14px}footer>p,footer summary,footer details p{font-size:12px}footer details a{color:var(--blue)}footer details{border:0}.skip{position:absolute;top:-90px;left:20px;padding:12px;background:var(--blue);color:var(--ink);z-index:3}.skip:focus{top:8px}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0)}@keyframes breathe{to{transform:scaleY(.42)}}@media(min-width:1000px){header{height:76px}}@media(max-width:1050px){.wrap{width:calc(100% - 56px)}.hero{gap:35px;grid-template-columns:1.15fr 1fr;min-height:540px}h1{font-size:62px}html[lang=zh-CN] h1{font-size:54px}.preview{padding:23px 20px}.preview h2{font-size:26px}.wave{width:41px;flex-basis:41px}.wave i:nth-child(n+14){display:none}.actions{gap:18px}.button{padding:12px 17px;gap:12px}.library-feature{gap:35px}.feature-row{gap:48px}}@media(max-width:760px){.wrap{width:calc(100% - 40px)}header{height:76px}.brand{font-size:16px;gap:7px}.brand img{width:30px;height:30px}nav{gap:17px}nav>a:first-child{display:none}.hero{grid-template-columns:1fr;gap:46px;padding-block:42px;min-height:0}.hero-copy{max-width:530px}h1{font-size:64px}.intro{font-size:17px;max-width:420px}.preview{max-width:530px;width:100%;padding:26px}.wave{width:61px;flex-basis:61px}.wave i:nth-child(n+14){display:block}.facts{flex-wrap:wrap;justify-content:flex-start;gap:10px 22px;padding-bottom:22px;font-size:12px}.showcase{padding-top:48px}.showcase h2,.faq>h2{font-size:31px}.screenshot{border-radius:12px}.features{padding-top:34px}.library-feature{grid-template-columns:1fr;gap:24px;padding-bottom:32px}.big-number{font-size:80px}.feature-row{grid-template-columns:1fr;gap:24px;padding-block:32px}.features h2{font-size:26px}.feature-symbol{margin-bottom:12px}.faq{padding-block:30px 50px}.footer-top .brand{flex-basis:100%}footer{padding-top:25px}}@media(max-width:390px){.wrap{width:calc(100% - 32px)}nav{gap:12px}.brand{font-size:14px}nav>a:nth-child(2){display:none}h1{font-size:57px}html[lang=zh-CN] h1{font-size:47px}.actions{gap:16px}.button{font-size:14px;padding:12px 15px}.listen-link{font-size:13px}.preview{padding:23px 20px}.sample{gap:10px}.sample-name{font-size:13px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.wave i{animation:none!important}}@media(prefers-reduced-transparency:reduce){.preview{background:#0c1b2b;backdrop-filter:none}}