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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.mobile-break{display:none}@media(max-width:700px){.mobile-break{display:block}}
/* AIR HOUKI — refined editorial direction */
:root{--ink:#203b5b;--muted:#647990;--sage:#5d7187;--mint:#e8ecf0;--paper:#f2f4f7;--line:#d7dde4;--brass:#567fa6}
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@media(max-width:700px){.hero{gap:18px}.hero-copy{padding-top:26px}.hero h1{font-size:31px;line-height:1.65}.hero-sub{margin:14px 0 20px}.hero-media{height:340px}.hero .eyebrow{margin-bottom:16px}.hero-edition{font-size:6px}.hero-tag{font-size:6px}}
/* Official support and mobile readability */
:root{--muted:#52677f} .note{font-size:12px}.hero-sub{font-size:16px}.btn{font-size:14px;min-height:48px}.nav{font-size:13px}.prelaunch{font-size:11px}.feature p,.copy p,.care-steps p,.step p,.sets-head p,.support p,details p,.charge-box p{font-size:15px}.fact-label,.fact em{font-size:12px}.support-intro{padding:85px 0 75px}.support-intro h1{font:400 clamp(30px,4vw,52px)/1.65 var(--serif);margin:0 0 24px}.lead{font-size:18px;line-height:2}.support-intro .btn{margin-top:18px}.support-choices{background:var(--paper)}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.choice-grid>a{padding:34px;border:1px solid var(--line);background:white;transition:background .2s}.choice-grid>a:hover{background:var(--mint)}.choice-grid span{font-size:11px;color:var(--brass);letter-spacing:.12em}.choice-grid h3{font:26px/1.6 var(--serif);margin:17px 0 10px}.choice-grid p{color:var(--muted)}.choice-grid b{font-size:14px;font-weight:500}.support-flow{display:grid;grid-template-columns:1fr 1.2fr;gap:70px}.support-flow ol{list-style:none;margin:0;padding:0}.support-flow li{display:flex;gap:26px;border-top:1px solid var(--line);padding:26px 0}.support-flow li>b{font:32px Georgia;color:var(--brass)}.support-flow li h3{font-size:21px;margin-bottom:8px}.support-flow p{color:var(--muted)}.contact-builder{background:#ebeef2}.contact-builder .wrap{max-width:850px}.topic-buttons{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.topic-buttons button{border:1px solid #92a2b4;background:transparent;padding:12px 20px;color:var(--ink);min-height:48px}.topic-buttons button[aria-pressed=true]{color:white;background:var(--ink)}.contact-builder label{display:block;font-size:14px;margin-bottom:9px}.contact-builder textarea{display:block;width:100%;border:1px solid #a6b4c1;background:white;padding:20px;font:16px/1.9 sans-serif;color:var(--ink);border-radius:0;resize:vertical}.message-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:20px}#copy-status{min-height:28px;font-size:14px}.parts-section{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.text-link{display:inline-block;border-bottom:1px solid var(--ink);padding:12px 0;margin-top:16px}.parts-section p{color:var(--muted)}
@media(max-width:700px){body{font-size:16px}.hero{grid-template-columns:1.15fr .85fr;gap:8px;padding-top:28px}.hero-copy{padding:0}.hero h1{font-size:clamp(21px,5.8vw,32px);line-height:1.7;letter-spacing:0}.hero-sub{font-size:14px;line-height:1.9;margin:16px 0}.hero .eyebrow{font-size:10px;letter-spacing:.06em}.hero .btn{font-size:12px;padding:12px;gap:12px}.hero-media{height:365px;border:0;padding:0}.hero-media:before,.hero-edition,.hero-tag{display:none}.hero-media img{max-width:100%;height:100%}.hero-foot{display:none}.facts .wrap{grid-template-columns:1fr;gap:0;padding:8px 0}.fact{padding:15px 0;display:grid;grid-template-columns:1fr 1fr;text-align:left;align-items:center}.fact+.fact{border-left:0;border-top:1px solid var(--line)}.fact strong{font-size:29px;text-align:right}.fact em{grid-column:1/-1;font-size:11px}.fact-label{font-size:13px}.fact strong small{font-size:13px}.intro p,.editorial-copy>p:not(.eyebrow):not(.note),.feature p,.copy p,.care-steps p,.step p,.sets-head p,.support p,details p,.charge-box p,.set-info .note{font-size:15px}.intro h2{font-size:27px}.faq summary,summary{font-size:15px;line-height:1.8}.specs dl{font-size:13px}.guide-grid{grid-template-columns:1fr}.step p{margin-bottom:0}.mobile-cta span{font-size:11px}.mobile-cta .btn{font-size:13px}.social-status{font-size:14px}.footer-bottom{font-size:11px}.footer-links{flex-wrap:wrap;font-size:13px}.support-intro{padding:55px 0}.support-intro h1{font-size:29px}.lead{font-size:16px}.choice-grid{grid-template-columns:1fr;gap:15px}.choice-grid>a{padding:25px}.choice-grid h3{font-size:24px}.support-flow{grid-template-columns:1fr;gap:25px}.support-flow li{gap:20px}.topic-buttons{gap:8px}.topic-buttons button{padding:10px 12px;font-size:14px}.parts-section{grid-template-columns:1fr;gap:30px}.message-actions .btn{flex:1;white-space:nowrap;justify-content:center;padding:14px 16px}.note{font-size:12px!important}}
@media(max-width:700px){.hero{grid-template-columns:1.3fr .8fr}.hero h1{font-size:clamp(19px,5.35vw,24px)}.facts .wrap{width:88%}.support-intro h1{font-size:30px}.hero-sub{font-size:14px}}

/* RIKO lifestyle collection v9 */
.riko-floor-intro{margin-bottom:64px}.riko-floor-intro h2,.daily-heading h2,.riko-routine h2{font-family:var(--serif);font-size:clamp(27px,3vw,40px);font-weight:500;line-height:1.65;margin:0 0 28px}.riko-floor-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:850px;margin:32px auto 0}figure{margin:0}.riko-crop{overflow:hidden;position:relative;background:#f3f5f8}.riko-crop img{position:absolute;height:100%;max-width:none;top:0;object-fit:fill}.floor-crop{aspect-ratio:724/1086}.floor-crop img{width:200%;left:0}.floor-crop.panel-1 img{left:-100%}.riko-floor-grid figcaption{text-align:center;padding:14px;font-size:16px}.daily-scenes{background:#f3f6fa;padding:85px 0}.daily-heading{max-width:700px;margin-bottom:36px}.daily-heading p{font-size:16px}.daily-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.daily-card{background:white;overflow:hidden;border:1px solid #e0e7ef;border-radius:8px}.daily-card img{width:100%;height:auto;aspect-ratio:3/2}.daily-card>div{padding:23px}.daily-card h3{font-size:19px;line-height:1.65;margin:0 0 12px}.daily-card p{font-size:14px;line-height:1.9;margin:0;color:var(--muted)}.scene-note{font-size:13px;line-height:1.9;color:var(--muted);margin-top:24px}.riko-routine{padding:85px 0}.routine-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:36px}.routine-crop{aspect-ratio:1448/3258}.routine-crop img{width:300%;left:0}.routine-crop.panel-1 img{left:-100%}.routine-crop.panel-2 img{left:-200%}.routine-grid figcaption{padding:14px 0;font-size:18px}.routine-grid figcaption span{color:#557da2;margin-right:12px;font-size:13px}.detail-photo.car-scene img{height:auto;aspect-ratio:3/2;object-fit:contain}.header .nav{gap:20px}
@media(max-width:760px){.daily-grid{grid-template-columns:1fr}.daily-card>div{padding:22px}.daily-card h3{font-size:21px}.daily-card p{font-size:15px}.daily-scenes,.riko-routine{padding:60px 0}.daily-heading p{font-size:15px}.routine-grid{grid-template-columns:1fr;gap:30px}.routine-crop{aspect-ratio:1448/3258}.routine-crop img{height:auto;min-height:100%;width:300%}.riko-floor-grid{gap:12px}.riko-floor-grid figcaption{font-size:14px;padding:12px 0}.riko-floor-intro{margin-bottom:45px}.details-story{grid-template-columns:1fr}.details-story .detail-photo{padding-top:0}.details-story .detail-photo img{height:auto;max-height:460px;object-fit:contain;width:100%}.details-story .detail-photo h3{font-size:20px}.details-story .detail-photo span{font-size:11px}.scene-note{font-size:13px}}

/* Product performance images v10 */
.power-feature{padding-top:80px;padding-bottom:80px}.power-feature>p,.filter-feature>p{margin:20px 0;line-height:1.9}.feature-banner{display:block;width:100%;height:auto;max-width:100%;margin:28px auto;border-radius:12px}.filter-feature{max-width:1120px;margin:0 auto}.filter-feature .btn{margin-top:12px}@media(max-width:640px){.power-feature{padding-top:48px;padding-bottom:48px}.feature-banner{border-radius:6px;margin:22px 0}.power-feature h2,.filter-feature h2{font-size:clamp(24px,6.3vw,32px);line-height:1.5}}

/* Buying and care guide v11 */
.buy-guide{padding-top:72px;padding-bottom:72px}.use-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:30px}.use-grid article{background:#f2f7fb;border:1px solid #dce8f0;border-radius:12px;padding:28px}.use-label{display:block;color:#27658c;font-size:14px;letter-spacing:.08em;margin-bottom:12px}.use-grid h3{font-size:21px;line-height:1.5}.use-grid p,.purchase-support p{line-height:1.9;margin:14px 0}.use-grid a{display:inline-block;color:#245d82;margin-top:12px;text-underline-offset:4px}.purchase-support{margin-top:30px;padding:30px;border-left:3px solid #6ca4c7;background:#f6f9fc}.care-steps.care-four{grid-template-columns:repeat(4,minmax(0,1fr))}#runtime{scroll-margin-top:100px}@media(max-width:760px){.use-grid{grid-template-columns:1fr;gap:14px}.use-grid article,.purchase-support{padding:22px}.buy-guide{padding-top:44px;padding-bottom:44px}.care-steps.care-four{grid-template-columns:1fr 1fr;gap:20px}}@media(max-width:440px){.care-steps.care-four{grid-template-columns:1fr}}

/* Support navigation v12 */
.faq-category{font-size:18px;line-height:1.6;margin:30px 0 12px;color:#203b5b}.faq-category:first-child{margin-top:0}.support-use-faq{margin:32px 0 20px}.support-use-faq details{border-bottom:1px solid #dce8f0;padding:20px 0}.support-use-faq summary{cursor:pointer;font-weight:600;line-height:1.7}.support-use-faq details p{line-height:1.9;margin:14px 0 0}.support-use-faq a,.faq a{text-underline-offset:4px}#use-care{scroll-margin-top:100px}

/* v15: suction and lightness lead the hero */
.hero-power{margin:22px 0 0;color:var(--ink)}.hero-power>span{display:block;font-size:13px;letter-spacing:.12em}.hero-power strong{display:block;font:400 clamp(48px,5vw,72px)/1.15 Georgia,serif;letter-spacing:-.03em;white-space:nowrap}.hero-power strong small{font-size:.35em;margin-left:8px;letter-spacing:0}.hero-power p{margin:8px 0 0;font-size:20px;letter-spacing:.08em}.hero-foot{margin-top:24px;font-size:11px;line-height:1.8}.hero-sub{margin:20px 0 24px}
@media(max-width:700px){.hero{grid-template-columns:1.3fr .8fr;align-items:center}.hero-power{margin-top:16px}.hero-power>span{font-size:11px;letter-spacing:0}.hero-power strong{font-size:clamp(34px,9.5vw,58px)}.hero-power strong small{margin-left:3px}.hero-power p{font-size:16px}.hero-foot{display:block;font-size:10px;line-height:1.7;margin-top:14px}.hero-sub{font-size:12px;margin:15px 0}.hero .btn{font-size:11px;padding:12px 8px;gap:6px}.hero-media{height:365px}.fact strong{white-space:nowrap}}