/* V18: one feature hierarchy, different compositions for each use story. */
.logo{min-height:44px;display:flex;align-items:center}
.feature-heading{margin-bottom:clamp(28px,4vw,56px);max-width:950px}
.feature-heading .eyebrow{margin-bottom:18px}
.feature-heading h2{font-size:clamp(2rem,4vw,4rem);font-weight:450;line-height:1.3}
.feature-intro{font-size:1.125rem;color:var(--muted);max-width:42em;margin-top:22px}
.feature-copy h3{font-size:clamp(1.5rem,2.5vw,2.5rem);font-weight:450;line-height:1.5;margin-bottom:24px}
.feature-copy>p{margin-bottom:20px;color:var(--muted);line-height:1.9}
.feature-copy,.adaptive-layout>div,.voice-layout>div,.records-layout>div,.tech-explanation>div{min-width:0}
.feature-condition{font-size:.9375rem;line-height:1.85;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:28px}
.feature-condition strong{display:inline-block;font-weight:500;color:var(--ink);margin-right:18px}
.visual-note,.source-figure figcaption,.feature-photo figcaption{font-size:.875rem;color:var(--muted);line-height:1.75}
.visual-note{margin-top:16px}
.source-figure{margin:0;min-width:0}
.source-window{position:relative;overflow:hidden;width:100%;background:#eeece8;isolation:isolate}
.source-window img{position:absolute;display:block;max-width:none;height:auto}
.source-figure figcaption,.feature-photo figcaption{padding-top:14px}
/* Crops show only imagery from the supplied single pages. No product pixels are redrawn. */
.source-figure--kit .source-window{aspect-ratio:750/997}
.source-figure--kit img{width:100%;left:0;top:0}
.source-figure--adaptive .source-window{aspect-ratio:750/416}
.source-figure--adaptive img{width:100%;left:0;top:-81.0096%}
.source-figure--earphones{max-width:260px}
.source-figure--earphones .source-window{aspect-ratio:164/184}
.source-figure--earphones img{width:457.3171%;left:-267.6829%;top:-260.8696%}
.source-figure--box{max-width:330px}
.source-figure--box .source-window{aspect-ratio:307/334}
.source-figure--box img{width:244.2997%;left:-77.8502%;top:-143.7126%}
.source-figure--app{max-width:330px;width:100%;justify-self:center}
.source-figure--app .source-window{aspect-ratio:240/351}
.source-figure--app img{width:312.5%;left:-204.1667%;top:-33.0484%}
.equipment-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1fr);gap:clamp(36px,8vw,120px);align-items:center}
.equipment-grid>.source-figure{max-width:470px;width:100%;justify-self:center}
.device-roles{margin:0}
.device-roles>div{border-top:1px solid var(--line);padding:28px 0}
.device-roles>div:last-child{border-bottom:1px solid var(--line)}
.device-roles dt{font-size:clamp(1.25rem,2vw,1.8rem);margin-bottom:12px}
.device-roles dd{margin:0;color:var(--muted);line-height:1.85}
.core-overview{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-block:1px solid var(--line)}
.core-overview>a{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:18px;padding:28px 24px;align-items:center;min-width:0}
.core-overview>a:first-child{padding-left:0}
.core-overview>a:last-child{padding-right:0}
.core-overview>a+a{border-left:1px solid var(--line)}
.core-overview>a>span{font-size:.875rem;color:var(--wine);align-self:start;padding-top:6px}
.core-overview strong{font-size:clamp(1.25rem,2vw,1.8rem);font-weight:500}
.core-overview p{font-size:.9375rem;color:var(--muted);margin-top:8px}
.core-overview svg{width:20px}
.core-overview a:hover strong{color:var(--wine)}
.core-overview-wrap{padding-block:0}
.adaptive-layout,.tech-explanation{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(32px,5vw,80px);align-items:start}
.adaptive-answers{margin:28px 0 0}
.adaptive-answers>div{display:grid;grid-template-columns:7em minmax(0,1fr);gap:22px;border-top:1px solid var(--line);padding:20px 0;line-height:1.85}
.adaptive-answers dt{font-size:.9375rem;color:var(--wine)}
.adaptive-answers dd{margin:0;color:var(--muted)}
.preference-flow{list-style:none;padding:0;margin:34px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.preference-flow li{position:relative;border-top:2px solid var(--wine);padding-top:18px}
.preference-flow span{font-size:.8125rem;color:var(--muted)}
.preference-flow h3{font-size:1.2rem;font-weight:500;margin:14px 0 10px}
.preference-flow p{font-size:.9375rem;color:var(--muted);line-height:1.7}
.companion-note{display:flex;gap:36px;align-items:baseline;margin-top:40px;padding:24px 0;border-top:1px solid var(--line)}
.companion-note>span{font-size:1.125rem;white-space:nowrap;color:var(--wine)}
.companion-note p{color:var(--muted)}
.rhythm-feature{background:#eeede9;border-block:1px solid var(--line)}
.rhythm-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(36px,6vw,90px);align-items:center}
.rhythm-layout .source-figure--earphones{margin-top:32px;max-width:225px}
.rhythm-demo{padding:clamp(22px,3vw,44px);background:var(--paper);border-top:3px solid var(--wine);min-width:0}
.rhythm-demo-top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;border-bottom:1px solid var(--line);padding-bottom:20px}
.rhythm-demo-top>span{font-size:1.125rem}
.rhythm-demo button{display:inline-flex;align-items:center;gap:12px;background:var(--wine);color:white;font-size:.875rem;min-height:44px;padding:10px 14px}
.rhythm-demo button svg{width:18px}
.rhythm-demo button:hover{background:var(--wine-deep)}
.rhythm-track{display:grid;grid-template-columns:5em minmax(0,1fr);gap:16px;align-items:center;margin-top:28px}
.rhythm-track>p{font-size:.9375rem}
.rhythm-bars{display:flex;align-items:center;gap:clamp(3px,.45vw,7px);height:112px;border-block:1px solid var(--line)}
.rhythm-bars>i{display:block;flex:1;min-width:0;height:var(--bar);background:var(--wine);opacity:.8;transform-origin:center}
.rhythm-track--output .rhythm-bars>i{background:#998779}
.rhythm-scale{display:flex;justify-content:space-between;padding-left:calc(5em + 16px);gap:10px;font-size:.8125rem;color:var(--muted);margin-top:16px}
.rhythm-scale span{white-space:nowrap}
.rhythm-status{font-size:1rem;margin-top:28px;color:var(--ink);min-height:3.6em}
.rhythm-demo .visual-note{border-top:1px solid var(--line);padding-top:18px}
.voice-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(36px,7vw,104px);align-items:start}
.voice-layout .source-figure--box{margin:0 auto 32px}
.voice-layout .feature-copy{max-width:32em;margin:auto}
.voice-layout .control-demo{padding:clamp(22px,3vw,42px);align-self:stretch}
.records-section{border-block:1px solid var(--line)}
.records-layout{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);gap:clamp(36px,7vw,100px);align-items:center}
.records-copy>p:first-child{font-size:1.125rem;color:var(--muted)}
.record-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 40px;margin:36px 0 0}
.record-facts>div{border-top:1px solid var(--line);padding-top:20px}
.record-facts dt{font-size:1.5rem;margin-bottom:12px}
.record-facts dd{color:var(--muted);font-size:1rem;margin:0;line-height:1.8}
.support-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(32px,6vw,90px);align-items:center}
.support-feature+.support-feature{border-top:1px solid var(--line)}
.feature-photo{min-width:0}
.feature-photo img{width:100%;height:auto;aspect-ratio:3/2;object-fit:contain}
.structure-photo img{aspect-ratio:1.3}
.zone-comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:30px}
.zone-comparison>div{padding:22px 0;border-top:1px solid var(--line)}
.zone-comparison span{display:block;font-size:.875rem;color:var(--muted)}
.zone-comparison strong{display:block;font-size:1.5rem;font-weight:450;margin:14px 0 10px}
.zone-comparison p{font-size:.9375rem;color:var(--muted)}
.structure-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,.7fr);gap:clamp(32px,6vw,90px);align-items:center}
.structure-facts{margin:0}
.structure-facts>div{border-top:1px solid var(--line);padding:26px 0;display:flex;align-items:center;gap:26px}
.structure-facts dt{font-family:Arial,sans-serif;font-size:5rem;line-height:1;color:var(--wine)}
.structure-facts dd{margin:0}
.structure-facts strong{font-size:1.25rem;font-weight:450;display:block}
.structure-facts span{display:block;color:var(--muted);font-size:.9375rem;line-height:1.8;margin-top:12px}
.contact-sensing{background:var(--soft)}
.contact-rule{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:24px;border-block:1px solid var(--line)}
.contact-rule span,.contact-rule strong{font-size:clamp(1rem,1.7vw,1.5rem);font-weight:450}
.contact-rule strong{color:var(--wine)}
.contact-rule b{font-weight:400;color:var(--muted)}
.method-list,.remote-steps,.technical-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;list-style:none;padding:0;margin:0}
.method-list article,.remote-steps li,.technical-steps li{border-top:1px solid var(--line);padding-top:22px}
.method-list span,.remote-steps span,.technical-steps span{font-size:.875rem;color:var(--wine)}
.method-list h3,.remote-steps h3,.technical-steps h3{font-size:1.5rem;font-weight:450;margin:20px 0 14px}
.method-list p,.remote-steps p,.technical-steps p{color:var(--muted)}
.product-story-v18 .product-experience{padding-top:clamp(60px,6.5vw,104px);border-top:1px solid var(--line)}
.warmth-section{background:var(--soft)}
.warmth-value{font-size:clamp(3.2rem,6vw,6rem);letter-spacing:-.05em;font-family:Arial,sans-serif;margin-bottom:18px;line-height:1.15}
.warmth-value span{font-size:2rem;letter-spacing:0}
.small-specs{margin:30px 0 0;display:flex;gap:44px;flex-wrap:wrap}
.small-specs dt{font-size:.875rem;color:var(--muted);margin-bottom:10px}
.small-specs dd{font-size:1.5rem;margin:0}
.wearing-section{border-top:1px solid var(--line)}
.wearing-section .daily-scenes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.wearing-section .daily-scene{min-width:0}
.wearing-section .daily-scene img{width:100%;aspect-ratio:4/5;object-fit:contain}
.wearing-section .daily-scene figcaption{padding-top:18px}
.wearing-section .daily-scene h3{font-size:1.25rem;font-weight:450;margin-bottom:10px}
.wearing-section .daily-scene p{color:var(--muted)}
.kit-v18{border-top:1px solid var(--line)}
.kit-v18 .kit-list li{border-color:var(--line)}
.kit-v18 .kit-list li>span{color:var(--wine)}
.kit-v18 .kit-list p{color:var(--muted);font-size:1rem}
.kit-v18 .kit-list h3{font-size:clamp(1.25rem,2.2vw,2rem)}
.technology-intro{padding-top:72px;padding-bottom:48px}
.technology-intro h1{font-size:clamp(2.6rem,5vw,5rem);font-weight:450;line-height:1.4}
.technology-intro>p:not(.eyebrow){font-size:1.125rem;color:var(--muted);margin:30px 0 46px}
.explanation-list{margin:0}
.explanation-list>div{border-top:1px solid var(--line);padding:22px 0}
.explanation-list dt{font-size:1.25rem;color:var(--wine);margin-bottom:12px}
.explanation-list dd{margin:0;line-height:1.9;color:var(--muted)}
.tech-distinction{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;margin-top:48px}
.tech-distinction article{padding-top:24px;border-top:1px solid var(--line)}
.tech-distinction h3{font-size:1.25rem;font-weight:450;line-height:1.5;margin-bottom:16px}
.tech-distinction p{font-size:.9375rem;color:var(--muted)}
.technical-steps{margin-top:46px}
.technical-note{font-size:.9375rem;line-height:1.85;color:var(--muted);margin-top:26px}
.system-v18,.app-v18{border-top:1px solid var(--line)}
.technology-basis{background:var(--soft)}
.technology-basis>p{max-width:52em;color:var(--muted);margin:24px 0}
.technology-basis .text-link{margin-top:12px}
/* Homepage is a quick introduction, not another long product page. */
.home-core-overview .core-overview{margin-top:24px}
.home-equipment-line{margin-top:24px;color:var(--muted);font-size:1rem}
.home-adaptive,.home-rhythm,.home-voice-feature{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(32px,6vw,90px);align-items:center;border-top:1px solid var(--line)}
.home-feature-heading h2{font-size:clamp(2.5rem,4.7vw,4.8rem);font-weight:450;margin:22px 0}
.home-feature-heading>p:not(.brand-kicker){color:var(--muted);font-size:1.0625rem;line-height:1.95}
.home-feature-heading .text-link{margin-top:28px;min-height:44px}
.home-rhythm{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);background:#eeede9}
.home-rhythm>.source-figure{justify-self:center;max-width:275px;width:100%}
.home-rhythm .feature-condition{font-size:.9375rem!important;margin-top:32px}
.home-voice-process{border-top:3px solid var(--wine);padding:32px;background:var(--soft)}
.home-voice-process blockquote{margin:0 0 30px;font-size:clamp(1.5rem,2.5vw,2.5rem);line-height:1.5}
.home-voice-process ol{list-style:none;padding:0;margin:0}
.home-voice-process li{display:grid;grid-template-columns:6em minmax(0,1fr);gap:20px;padding:20px 0;border-top:1px solid var(--line)}
.home-voice-process li>span{font-size:.875rem;color:var(--wine);padding-top:3px}
.home-voice-process li>p{font-size:1rem}
.product-subnav--ordered{position:relative;z-index:10;justify-content:start;gap:28px}
.product-subnav--ordered>a{margin-right:auto}
.chapter-menu{position:static;font-size:.9375rem}
.chapter-menu summary{cursor:pointer;min-height:44px;display:flex;align-items:center;gap:20px;list-style:none}
.chapter-menu summary::-webkit-details-marker{display:none}
.chapter-menu[open] summary{color:var(--wine)}
.chapter-menu[open] summary>span{transform:rotate(45deg)}
.product-subnav--ordered .chapter-menu nav{position:absolute;left:var(--gutter);right:var(--gutter);top:100%;z-index:10;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 32px;padding:24px 32px;background:var(--paper);border:1px solid var(--line);box-shadow:0 18px 26px #22232015;max-height:65vh;overflow:auto;overscroll-behavior:contain}
.chapter-menu nav a{gap:16px;min-width:0;border-bottom:1px solid var(--line);padding:12px 0;line-height:1.6}
.chapter-menu nav a>span{font-size:.8125rem;color:var(--muted)}
.chapter-menu nav a:hover,.product-quicknav a:hover{color:var(--wine)}
.product-subnav--ordered .product-quicknav{gap:24px}
@media(max-width:1050px){
 .core-overview>a{gap:12px;padding-inline:20px}.core-overview svg{display:none}
 .adaptive-layout,.tech-explanation{grid-template-columns:minmax(0,1fr);gap:32px}
 .adaptive-layout>div:last-child,.tech-explanation>div:last-child{max-width:760px;width:100%;justify-self:center}
 .rhythm-layout{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:32px}
 .voice-layout{gap:36px}.records-layout{gap:36px}
 .product-subnav--ordered{flex-wrap:wrap;gap:0 24px}.product-subnav--ordered .product-quicknav{gap:18px}
 .home-adaptive,.home-voice-feature{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}
}
@media(max-width:760px){
 .equipment-overview .equipment-grid>.source-figure{max-width:290px}
 .equipment-overview .device-roles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
 .equipment-overview .device-roles>div{padding-block:18px;border-bottom:0}
 .equipment-overview .device-roles dt{font-size:1.125rem;line-height:1.6}
 .equipment-overview .device-roles dd{font-size:.9375rem}
 .adaptive-layout>div:last-child{order:-1}
 .feature-heading h2{font-size:clamp(2rem,8vw,3.2rem)}.feature-heading .eyebrow{font-size:.875rem;margin-bottom:16px}.feature-intro{font-size:1rem;margin-top:18px}
 .feature-copy h3{font-size:1.6rem;margin-bottom:18px}.feature-copy h3 br{display:none}
 .equipment-grid,.rhythm-layout,.voice-layout,.records-layout,.support-split,.structure-layout{grid-template-columns:minmax(0,1fr);gap:30px}
 .equipment-grid>.source-figure{max-width:380px}.device-roles>div{padding-block:22px}.device-roles dt{font-size:1.25rem}
 .core-overview{grid-template-columns:minmax(0,1fr)}.core-overview>a{padding:22px 0!important;grid-template-columns:30px minmax(0,1fr) 20px;gap:14px}.core-overview>a+a{border-left:0;border-top:1px solid var(--line)}.core-overview svg{display:block}.core-overview strong{font-size:1.5rem}.core-overview p{margin-top:4px}
 .adaptive-answers>div{grid-template-columns:minmax(0,1fr);gap:8px;padding-block:18px}.adaptive-answers dt{font-size:1rem}
 .preference-flow{gap:14px;margin-top:26px}.preference-flow span{font-size:.8125rem}.preference-flow h3{font-size:1.125rem}.preference-flow p{font-size:.875rem}
 .companion-note{display:block;margin-top:28px}.companion-note p{margin-top:14px}
 .rhythm-layout .source-figure--earphones{margin-inline:auto;max-width:210px}.rhythm-demo{padding:22px}.rhythm-track{grid-template-columns:4em minmax(0,1fr);gap:12px}.rhythm-bars{height:90px;gap:4px}.rhythm-scale{padding-left:calc(4em + 12px);font-size:.75rem}.rhythm-status{min-height:0}
 .voice-layout .source-figure--box{max-width:280px}.voice-layout .feature-copy{max-width:none}
 .records-layout .source-figure--app{max-width:260px}.record-facts{gap:22px}.record-facts dt{font-size:1.25rem}
 .structure-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.structure-facts>div{display:block}.structure-facts dt{font-size:3.5rem;margin-bottom:18px}.structure-facts strong{font-size:1.125rem}
 .contact-rule{flex-direction:column;align-items:start;padding-block:22px;gap:10px}.contact-rule strong{font-size:1.25rem}.contact-rule b{padding-left:4px}
 .method-list,.remote-steps,.technical-steps,.tech-distinction{grid-template-columns:minmax(0,1fr);gap:26px}.method-list h3,.remote-steps h3,.technical-steps h3{font-size:1.35rem;margin-top:12px}.method-list article,.remote-steps li,.technical-steps li{padding-top:18px}
 .warmth-section .support-split>.feature-copy{order:-1}.warmth-value{font-size:4rem}.small-specs{gap:36px}
 .wearing-section .daily-scenes{grid-template-columns:minmax(0,1fr);gap:32px;max-width:540px;margin:auto}
 .wearing-section .daily-scene figcaption{padding-top:16px}.kit-v18 .kit-list li{gap:22px;padding-block:22px}
 .technology-intro{padding-top:42px;padding-bottom:30px}.technology-intro h1{font-size:clamp(2rem,7.8vw,3.5rem)}.technology-intro>p:not(.eyebrow){font-size:1rem;margin:24px 0 32px}.technology-intro>p br{display:none}
 .tech-distinction{margin-top:32px}.technical-steps{margin-top:34px}
 .home-adaptive,.home-rhythm,.home-voice-feature{grid-template-columns:minmax(0,1fr);gap:30px}.home-feature-heading h2{margin:18px 0;font-size:2.6rem}.home-feature-heading>p br{display:none}.home-feature-heading .text-link{margin-top:22px}.home-rhythm>.source-figure{max-width:230px}.home-voice-process{padding:24px}.home-voice-process li{gap:12px;grid-template-columns:5em minmax(0,1fr)}
 .product-subnav--ordered{padding-block:12px;gap:4px 20px}.product-subnav--ordered .product-quicknav{width:100%;justify-content:space-between;gap:6px;flex-wrap:nowrap;font-size:.875rem;border-top:1px solid var(--line);padding-top:4px}.chapter-menu summary{font-size:.875rem;gap:10px}.product-subnav--ordered .chapter-menu nav{grid-template-columns:repeat(2,minmax(0,1fr));padding:14px 18px;gap:0 20px;font-size:.875rem;max-height:65vh}.chapter-menu nav a{gap:8px}
}
@media(max-width:380px){.site-header{gap:12px;padding-inline:20px}.site-header .header-contact{white-space:nowrap;gap:6px}.rhythm-scale{padding-left:0}.preference-flow{grid-template-columns:minmax(0,1fr);gap:20px}.preference-flow li{display:grid;grid-template-columns:7em minmax(0,1fr);gap:8px 16px;padding-top:14px}.preference-flow span{grid-column:1/-1}.preference-flow h3,.preference-flow p{margin:0}.product-subnav--ordered .chapter-menu nav{grid-template-columns:minmax(0,1fr)}}
@media(prefers-reduced-motion:reduce){.rhythm-bars>i{animation:none!important;transition:none!important}}
@media print{.chapter-menu,.product-quicknav,.rhythm-demo button{display:none!important}.source-figure,.feature-photo,.control-demo,.rhythm-demo{break-inside:avoid}}