:root {
  --forest:#214e42; --ink:#20392f; --muted:#65766b;
  --paper:#fafcfa; --mint:#e8eee7; --yellow:#dcc56b;
  --line:#d8e1d7; --page:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.85 "PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-weight:600;line-height:1.4}p{color:var(--muted)}
a:focus-visible,summary:focus-visible{outline:3px solid #9a7514;outline-offset:5px}
a:hover{color:#3f6b50}.wrap{width:min(var(--page),calc(100% - 96px));margin-inline:auto}
.skip{position:absolute;top:-100px;left:20px;padding:12px;background:white;z-index:30}.skip:focus{top:8px}
.header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #e4eae3}
.nav{height:88px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand{display:flex;align-items:center;gap:24px}.logo{display:block;width:140px;height:48px;overflow:hidden}.logo img{width:140px;max-width:none;transform:translateY(-46px)}
.brand-label{font-size:14px;border-left:1px solid var(--line);padding-left:24px;color:var(--muted)}
.navlinks{display:flex;align-items:center;gap:32px;font-size:14px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:12px 24px;background:var(--forest);color:#fff;border:1px solid var(--forest);border-radius:8px;font-size:15px;font-weight:500;line-height:1.5;transition:background .15s}
.button:hover{background:#183d32;color:white}.button.secondary{background:transparent;color:var(--forest);border-color:#96ab9e}.button.secondary:hover{background:#e8eee7}.navlinks .button{min-height:42px;padding:9px 21px;font-size:14px}
.hero{padding-top:24px}.hero-grid{display:grid;grid-template-columns:47% 53%;min-height:574px;background:var(--mint);border-radius:18px;overflow:hidden;position:relative}
.hero-content{padding:64px 0 52px 48px;position:relative;z-index:2;align-self:center}
.intro{font-size:14px;color:#476353;margin-bottom:24px}.hero h1{font-size:56px;line-height:1.3;letter-spacing:-1.5px}
.hero-copy{font-size:16px;line-height:1.95;max-width:365px;margin:24px 0 30px}.actions{display:flex;flex-wrap:wrap;gap:12px}.availability{font-size:12px;max-width:340px;margin-top:18px}
.hero-photo{position:relative;height:100%;min-height:574px}
.hero-photo img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;object-position:65% center}
.photo-note{position:absolute;bottom:20px;right:24px;background:#fffef0e8;border-radius:6px;padding:8px 14px;font-size:12px;color:#385041}
.journey{display:flex;justify-content:space-between;padding:26px 10px 10px;gap:20px;font-size:14px;color:var(--muted)}.journey a:hover{text-decoration:underline;text-underline-offset:6px}
.section{padding:96px 0}.heading{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:end;margin-bottom:42px}.heading h2,.training h2,.perch h2,.start h2{font-size:36px;line-height:1.45;letter-spacing:-.7px}.heading p{max-width:460px;font-size:16px}
.feature-layout{display:grid;grid-template-columns:1fr 1fr;gap:72px}.primary-feature{padding:34px 36px;background:var(--mint);border-radius:12px}.feature-title{display:flex;gap:15px;align-items:baseline;margin-bottom:12px}.feature-title h3{font-size:26px}.feature-title span{font-size:14px;color:var(--muted)}.primary-feature>p{font-size:15px}
.steps{margin-top:26px;display:grid;gap:18px}.steps div{display:flex;align-items:center;gap:16px}.steps b{font-size:12px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--forest);color:white;flex-shrink:0}.steps p{font-size:14px;color:#3e584a}
.subtle{font-size:13px!important;line-height:1.8;margin-top:22px}.feature-stack{display:flex;flex-direction:column;justify-content:space-between}.feature-item{padding:0 0 24px;border-bottom:1px solid var(--line)}.feature-item+.feature-item{padding-top:24px}.feature-item:last-child{border:0;padding-bottom:0}.feature-item h3{font-size:22px;margin-bottom:10px}.feature-item p{font-size:15px;max-width:470px}
.understand{background:#edf1ec}.three{display:grid;grid-template-columns:repeat(3,1fr);gap:56px}.three article{padding-right:20px}.three .label{display:block;font-size:13px;color:#54735b;margin-bottom:8px}.three h3{font-size:24px;margin-bottom:14px}.three p{font-size:15px}.boundary{margin-top:38px;padding:14px 18px;background:#f9fbf8;border-left:3px solid var(--yellow);font-size:13px}
.training{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}.training h2{margin-bottom:24px}.training p{max-width:460px}.training ul{padding-left:20px;margin:24px 0;color:var(--muted);font-size:15px;line-height:2.2}
.practice{padding:32px 36px;background:#f1f3e9;border-radius:18px;border:1px solid #dbe0cd}.practice-top{display:flex;justify-content:space-between;align-items:center;font-size:14px}.practice-top span{font-size:12px;color:var(--muted)}.word{text-align:center;font-size:42px;font-weight:500;line-height:1.4;padding-top:36px}
.sound-wave{height:60px;display:flex;align-items:center;justify-content:center;gap:5px;margin:8px 0 25px}.sound-wave i{width:4px;height:13px;background:#748d59;border-radius:3px}.sound-wave i:nth-child(3n){height:30px}.sound-wave i:nth-child(3n+1){height:20px}.sound-wave i:nth-child(5n){height:43px}
.practice-flow{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.practice-flow span{font-size:13px;padding:6px 10px;background:#fff;border-radius:4px}.practice small{display:block;text-align:center;color:var(--muted);font-size:12px;margin-top:24px}
.section.share{padding-top:0}.share-row{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.share-row article{border-top:2px solid #bacdb9;padding:26px 16px 0 0}.share-row h3{font-size:23px;margin-bottom:12px}.share-row p{font-size:15px}.planned{margin-top:30px;font-size:13px}.planned strong{font-weight:500;color:var(--ink);margin-right:12px}
.perch{background:#153427;color:#f1f6ee;padding:88px 0}.perch p{color:#bccbbd}.perch-top{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:end}.perch-top p{max-width:470px;font-size:16px}.perch figure{margin:38px 0 30px}.perch figure img{width:100%;aspect-ratio:2;object-fit:cover;object-position:center 53%;border-radius:12px}.perch figcaption{font-size:12px;color:#bccbbd;margin-top:12px;text-align:right}
.models{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}.models article{border-top:1px solid #516653;padding-top:24px}.models h3{font-size:24px;font-weight:500;margin-bottom:12px}.models p{font-size:14px;max-width:235px}.perch-bottom{display:flex;align-items:center;justify-content:space-between;gap:55px;margin-top:38px}.perch-bottom p{max-width:760px;font-size:13px}.perch .button{background:#e1e9d9;color:#20392f;border-color:#e1e9d9;white-space:nowrap}.perch .button:hover{background:white}
.start{background:var(--mint)}.start-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px}.start h2{margin-bottom:24px}.start p{max-width:460px}.release-note{font-size:13px!important;margin-top:20px}.platforms{display:grid;gap:16px}.platform{display:flex;justify-content:space-between;align-items:center;gap:24px;background:#fff;padding:25px 28px;border-radius:10px}.platform strong{font-size:22px;font-weight:500}.platform p{font-size:13px}.platform .button{white-space:nowrap;font-size:14px;min-height:46px;padding:10px 20px}.platforms .release-note{margin-top:0}
.faq{max-width:900px}.faq h2{font-size:32px;margin-bottom:32px}.faq details{border-top:1px solid var(--line);padding:22px 0}.faq summary{cursor:pointer;font-size:16px;font-weight:500}.faq details p{font-size:15px;margin-top:16px;max-width:780px}.faq a{text-decoration:underline;text-underline-offset:4px}
.footer{background:white;padding:42px 0 24px;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;gap:32px;align-items:center}.footer strong{font-size:18px;font-weight:500}.footer p,.footer a{font-size:13px}.footer-links{display:flex;gap:28px;flex-wrap:wrap}.legal{font-size:12px;display:flex;justify-content:space-between;gap:30px;padding-top:22px;margin-top:30px;border-top:1px solid var(--line);color:var(--muted)}
@media(min-width:1500px){.hero-grid{min-height:610px}.hero-photo{min-height:610px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.hero-content{padding:40px 24px 40px 30px}.hero h1{font-size:46px}.hero-copy{font-size:15px}.hero-grid,.hero-photo{min-height:550px}.brand-label{display:none}.heading,.feature-layout,.training,.perch-top,.start-grid{gap:40px}.three{gap:30px}.hero .actions .button{font-size:14px;padding:11px 16px}}
@media(max-width:760px){.wrap{width:calc(100% - 36px)}.nav{height:74px}.navlinks{gap:18px}.navlinks>a:not(.button){display:none}.logo{width:124px;height:43px}.logo img{width:124px;transform:translateY(-41px)}.hero{padding-top:16px}.hero-grid{grid-template-columns:1fr;min-height:0}.hero-content{padding:34px 26px}.hero h1{font-size:43px}.hero-copy{max-width:440px}.intro{margin-bottom:18px}.hero-photo{min-height:330px}.hero-photo img{object-position:65% 42%}.photo-note{right:16px;bottom:16px}.journey{overflow-x:auto;gap:25px;white-space:nowrap;justify-content:start;padding:22px 0 0;font-size:13px}.section{padding:64px 0}.heading,.feature-layout,.training,.perch-top,.start-grid{grid-template-columns:1fr;gap:26px}.heading{margin-bottom:30px}.heading h2,.training h2,.perch h2,.start h2{font-size:30px}.heading p{font-size:15px}.primary-feature{padding:27px}.feature-stack{gap:0}.feature-item{padding:20px 0}.three{grid-template-columns:1fr;gap:28px}.three article{padding-bottom:26px;border-bottom:1px solid var(--line)}.three article:last-child{padding-bottom:0;border:0}.three p{max-width:520px}.boundary{margin-top:28px}.share-row{grid-template-columns:1fr;gap:27px}.share-row article{padding-top:20px}.share .heading h2{font-size:28px}.practice{padding:28px 24px}.word{font-size:38px}.perch{padding:60px 0}.perch figure img{aspect-ratio:1.45}.models{grid-template-columns:1fr 1fr;gap:28px}.models article{padding-top:18px}.models p{font-size:13px}.perch-bottom{display:block;margin-top:30px}.perch .button{margin-top:22px}.platform{padding:22px 18px;gap:12px}.platform strong{font-size:20px}.platform .button{font-size:13px;padding:10px 14px}.faq h2{font-size:28px}.footer-top,.legal{display:block}.footer-links{margin-top:23px;gap:20px}.legal span{display:block;margin-top:8px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}


/* Wide photographic opening. Typography and spacing share the same scale. */
html{scroll-padding-top:88px}.nav{height:72px}.header{background:rgba(250,252,250,.94);backdrop-filter:blur(16px)}
.hero{padding-top:64px}.hero-grid{display:flex;flex-direction:column;background:none;border-radius:0;min-height:0;overflow:visible}
.hero-content{padding:0 0 40px;align-self:stretch;text-align:center}.hero h1{font-size:clamp(44px,5vw,72px);line-height:1.25;letter-spacing:-2px;font-weight:600}.hero h1 span{display:inline-block}
.hero-copy{margin:24px auto;max-width:650px;font-size:18px;line-height:1.8}.hero .actions{justify-content:center}.hero .availability{max-width:none;margin-top:16px}
.hero-photo{width:100%;height:540px;min-height:0;overflow:hidden;border-radius:24px;transform:scale(var(--hero-frame,1));transform-origin:center top}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:50% 32%;transform:scale(var(--hero-scale,1));will-change:transform}.photo-note{background:#fafcf2ec}.journey{padding-top:32px}
.section{padding:112px 0}.heading{margin-bottom:48px}.heading h2,.training h2,.perch h2,.start h2{font-size:44px;line-height:1.35;letter-spacing:-1px}.heading p,.training>div>p{font-size:17px;line-height:1.9}.primary-feature{background:#e8eee7}.share .heading{display:block}.share .heading h2{font-size:40px}.perch{padding:100px 0 112px}
/* Static document first: every scene stays readable without animation. */
.product-story{background:#153427;color:#f1f6ee;padding:88px 0}.story-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:40px}.story-heading h2{font-size:48px;line-height:1.25;letter-spacing:-1px}.story-heading>a{font-size:14px;color:#d0ded0;text-decoration:underline;text-underline-offset:6px}
.story-scenes{display:grid;gap:48px}.story-scene{display:grid;grid-template-columns:62% 38%;align-items:center;gap:0;scroll-margin-top:100px}.story-visual{overflow:hidden;min-width:0;border-radius:16px}.story-visual>img{display:block;width:100%;height:480px;object-fit:cover}.story-copy{padding:30px 0 30px 48px}.story-copy>p:first-child{font-size:14px;color:#b5c9b7;margin-bottom:16px}.story-copy h3{font-size:40px;line-height:1.35;margin-bottom:24px;letter-spacing:-1px}.story-copy p{font-size:16px;color:#bdcebf;line-height:1.9}.story-bottom{margin-top:32px;display:flex;align-items:center;justify-content:space-between;gap:28px;font-size:12px;color:#acbfaf}.story-progress{display:none}
@media(min-width:1000px) and (min-height:700px) and (prefers-reduced-motion:no-preference){
.motion-enabled .hero-photo{will-change:transform}.motion-enabled .product-story{height:340vh;padding:0;position:relative}.motion-enabled .story-stage{position:sticky;top:72px;height:calc(100vh - 72px);display:flex;flex-direction:column;justify-content:center;padding:28px 0}.motion-enabled .story-heading{margin-bottom:28px}.motion-enabled .story-heading h2{font-size:clamp(36px,3.3vw,48px)}.motion-enabled .story-scenes{position:relative;height:min(53vh,560px)}
.motion-enabled .story-scene{position:absolute;inset:0;opacity:var(--scene-opacity,0);visibility:hidden;pointer-events:none}.motion-enabled .story-scene.is-visible{visibility:visible}.motion-enabled .story-visual{height:100%;border-radius:12px}.motion-enabled .story-visual>img{height:100%;transform:translateY(var(--image-y,0px)) scale(var(--image-scale,1.12));will-change:transform}.motion-enabled .story-copy{transform:translateY(var(--copy-y,0px));opacity:var(--copy-opacity,1)}
.motion-enabled .story-progress{display:flex;gap:22px;align-items:center}.story-progress button{border:0;padding:10px 0;background:transparent;color:#a8bfae;font:inherit;font-size:13px;cursor:pointer;min-width:76px;text-align:left}.story-progress button[aria-pressed=true]{color:#fff}.story-progress i{display:block;height:2px;background:#546f59;position:relative;margin-top:8px;overflow:hidden}.story-progress i:after{content:"";position:absolute;inset:0;background:#e1e9d9;transform-origin:left;transform:scaleX(var(--fill,0))}
}
button:focus-visible{outline:3px solid #dcc56b;outline-offset:6px}
@media(min-width:1500px){.hero-photo{height:620px;min-height:0}.hero-grid{min-height:0}}
@media(max-width:1100px){.hero-grid{min-height:0}.hero-photo{min-height:0}.story-copy{padding-left:30px}.story-copy h3{font-size:32px}}
@media(max-width:760px){
.wrap{width:calc(100% - 40px)}.nav{height:70px}.hero{padding-top:44px}.hero-content{padding:0 0 30px}.hero h1{font-size:40px;line-height:1.35;letter-spacing:-1px}.hero h1 span{display:block}.hero-copy{font-size:15px;margin:20px auto;line-height:1.9}.hero-copy br{display:none}.hero .availability{font-size:11px;max-width:280px;margin-inline:auto}.hero-photo{height:380px;min-height:0;border-radius:16px}.hero-photo img{object-position:66% center}.hero .actions{gap:10px}.hero .button{padding:12px 16px;font-size:14px}.photo-note{font-size:11px;padding:7px 10px}.journey{padding-top:24px}.section{padding:64px 0}.heading h2,.training h2,.perch h2,.start h2,.share .heading h2{font-size:30px;letter-spacing:-.5px}.heading{margin-bottom:32px}.heading p,.training>div>p{font-size:15px}.product-story{padding:64px 0}.story-heading{display:block;margin-bottom:32px}.story-heading h2{font-size:34px;margin-bottom:20px}.story-scenes{gap:40px}.story-scene{grid-template-columns:1fr}.story-visual>img{height:290px}.story-copy{padding:24px 0 0}.story-copy h3{font-size:28px;margin-bottom:14px}.story-copy p{font-size:15px}.story-copy>p:first-child{margin-bottom:12px;font-size:13px}.story-bottom{margin-top:40px}.perch{padding:64px 0}
}
@media(prefers-reduced-motion:reduce){.hero-photo,.hero-photo img{transform:none!important}.header{backdrop-filter:none}}