/* 共通部品：色はtokens.cssの変数だけを使う。 */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: var(--surface); color: var(--text); font: 16px/1.8 var(--sans); -webkit-font-smoothing: antialiased; }
h1,h2,h3,p { margin: 0; }
h1,h2,h3 { font-weight: 500; overflow-wrap: anywhere; }
a { color: inherit; text-decoration: none; }
button,input { font: inherit; }
button,a,input,summary { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .35; }
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible { outline: 3px solid var(--red); outline-offset: 4px; }
img { display: block; max-width: 100%; }
button { color: inherit; }
::selection { background: var(--red); color: var(--white); }
.container { width: min(100%,1296px); padding-inline: var(--gutter); margin-inline: auto; }
.skip { position: fixed; top: -100px; left: 16px; padding: 16px 24px; background: var(--white); color: var(--ink); z-index: 100; }
.skip:focus { top: 16px; }
.eyebrow { font-size: 12px; font-weight: 600; line-height: 1.6; letter-spacing: .12em; }
.micro { font-size: 12px; line-height: 1.8; color: var(--secondary); }
.button { min-height: 56px; padding: 16px 24px; display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; border: 1px solid transparent; font-size: 14px; font-weight: 600; transition: background .2s, transform .2s; }
.button span { font-size: 20px; line-height: 1; }
.primary { background: var(--red); color: var(--white); }
.primary:hover { background: var(--red-hover); }
.secondary { border-color: var(--border); background: transparent; }
.secondary:hover { background: var(--subtle); }
.text-link { display: inline-flex; align-items: center; gap: 24px; border-bottom: 1px solid var(--border); padding-block: 8px; font-size: 14px; }
.text-link:hover { border-color: currentColor; }
.section { padding-block: var(--section-space); }
.section-head { margin-bottom: 48px; }
.section-head .eyebrow { color: var(--secondary); margin-bottom: 24px; }
.eyebrow > span { margin-right: 16px; }
.section-head h2,.purchase h2 { font: 500 40px/1.5 var(--serif); letter-spacing: .04em; }
.section-lead { margin-top: 24px; max-width: 640px; }
.body-copy { max-width: 640px; }
.brand { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.brand-mark { font: italic 800 36px/1 var(--sans); letter-spacing: -.08em; }
.brand-dot { color: var(--red); }
.brand-name { font-size: 12px; line-height: 1.5; letter-spacing: .05em; }
.brand-name small { display: block; font-size: 8px; letter-spacing: .025em; margin-top: 8px; }
.proposal-strip { background: var(--paper); color: var(--ink); border-bottom: 1px solid var(--line); font-size: 12px; }
.proposal-strip .container { min-height: 40px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.proposal-strip nav { display: flex; gap: 8px; }
.proposal-strip nav a { display: grid; place-items: center; width: 32px; height: 32px; }
.proposal-strip nav a[aria-current] { background: var(--ink); color: var(--white); }
.site-header { background: var(--ink); color: var(--white); border-bottom: 1px solid var(--dark-line); }
.site-header > .container { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.site-header nav { display: flex; align-items: center; gap: 32px; font-size: 13px; }
.site-header nav a:last-child { border-bottom: 1px solid var(--dark-line); padding-block: 8px; }
.site-header nav a:hover { color: var(--light-muted); }
.hero { background: var(--ink); color: var(--white); position: relative; overflow: hidden; }
.hero-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 64px; align-items: center; padding-block: 64px; }
.hero-copy { position: relative; z-index: 1; }
.hero-copy > .eyebrow { color: var(--light-muted); margin-bottom: 24px; }
.hero h1 { font: 500 clamp(40px,4.5vw,64px)/1.5 var(--serif); letter-spacing: .025em; }
.hero-lead { color: var(--light-muted); margin-top: 24px; font-size: 15px; line-height: 2; }
.hero-product-name { font-size: 24px; letter-spacing: .04em; margin-top: 32px; }
.hero-product-name > span { display: block; color: var(--light-muted); font-size: 12px; letter-spacing: .025em; }
.hero-price { display: flex; align-items: baseline; gap: 16px; margin-block: 16px 24px; }
.hero-price strong { font-size: 32px; line-height: 1.4; font-weight: 500; }
.hero-price strong small { font-size: 13px; margin-left: 8px; }
.hero-price > span { font-size: 12px; color: var(--light-muted); }
.hero-copy .button { width: 280px; }
.hero-note { color: var(--light-muted); margin-top: 8px; }
.product-stage { background: var(--photo); color: var(--ink); position: relative; height: 568px; display: flex; align-items: center; justify-content: center; box-shadow: var(--stage-shadow); }
.product-photo { object-fit: contain; mix-blend-mode: multiply; width: auto; height: 100%; }
.product-stage > .product-photo { height: 480px; max-width: 70%; margin-top: 8px; }
.stage-label { position: absolute; top: 24px; left: 24px; right: 24px; font-size: 10px; letter-spacing: .06em; display: flex; justify-content: space-between; }
.stage-caption { position: absolute; bottom: 24px; left: 24px; right: 24px; display: flex; justify-content: space-between; align-items: flex-end; }
.stage-caption > span:first-child { font-size: 40px; line-height: 1; letter-spacing: -.06em; }
.stage-caption small { font-size: 14px; letter-spacing: normal; }
.stage-caption > span:last-child { font-size: 10px; line-height: 1.7; }
.hero-bottom { display: flex; justify-content: space-between; padding-block: 24px; border-top: 1px solid var(--dark-line); font-size: 12px; letter-spacing: .05em; }
.hero-bottom a { display: flex; gap: 32px; font-size: 10px; align-items: center; }
.everyday-layout { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; }
.everyday .section-head { margin-bottom: 0; }
.everyday-content > .body-copy { margin-bottom: 32px; }
.device-list { border-top: 1px solid var(--border); }
.device-list > div { padding-block: 24px; border-bottom: 1px solid var(--border); display: grid; grid-template-columns: 32px 1fr auto; gap: 16px; align-items: baseline; }
.device-list h3 { font-size: 16px; font-weight: 600; }
.device-list > div > span,.device-list p { color: var(--secondary); font-size: 12px; }
.everyday-content > .micro { margin-top: 16px; }
.films { background: var(--subtle); }
.film-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 24px; align-items: start; }
.video-shell { position: relative; aspect-ratio: 16/10; background: var(--ink); }
.video-play { display: block; padding: 0; width: 100%; height: 100%; border: 0; background: var(--ink); color: var(--white); position: relative; overflow: hidden; }
.video-play:after { content: ''; position: absolute; inset: 0; background: var(--scrim); }
.video-play > img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.video-play:hover > img { transform: scale(1.035); }
.film-badge { position: absolute; top: 16px; left: 16px; font-size: 10px; z-index: 1; background: var(--glass); padding: 8px; letter-spacing: .1em; }
.play-disc { display: grid; place-items: center; width: 56px; height: 56px; border: 1px solid var(--white); border-radius: 50%; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); z-index: 1; background: var(--glass); font-size: 16px; }
.video-shell iframe { display: block; width: 100%; height: 100%; border: 0; }
.film-meta { padding-top: 16px; }
.film-meta h3 { font-size: 16px; font-weight: 600; margin-block: 8px; }
.film-meta > .text-link { font-size: 12px; }
.film-notes { border-top: 1px solid var(--border); margin-top: 32px; padding-top: 24px; max-width: 960px; font-size: 12px; color: var(--secondary); }
.film-notes p + p { margin-top: 8px; }
.feature-list { border-top: 1px solid var(--border); }
.feature { display: grid; grid-template-columns: 96px 1fr 1fr; gap: 32px; align-items: center; padding-block: 40px; border-bottom: 1px solid var(--border); }
.feature-num { font: 400 56px/1.2 var(--serif); color: var(--secondary); }
.feature-title .eyebrow { margin-bottom: 8px; color: var(--secondary); }
.feature-title h3 { font-size: 24px; }
.feature > p { color: var(--secondary); max-width: 640px; }
.source-note { font-size: 12px; color: var(--secondary); margin-top: 24px; }
.source-note a { text-decoration: underline; text-underline-offset: 4px; }
.ambassador { background: var(--subtle); }
.ambassador-layout { display: grid; grid-template-columns: 1.15fr 1fr; gap: 80px; align-items: center; }
.ambassador-placeholder { background: var(--dark); color: var(--white); min-height: 392px; padding: 32px; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid var(--dark-line); }
.ambassador-placeholder .eyebrow { color: var(--light-muted); font-size: 10px; }
.placeholder-word { font-size: clamp(24px,3.5vw,48px); font-weight: 600; line-height: 1.2; letter-spacing: -.035em; }
.placeholder-note { border-top: 1px solid var(--dark-line); padding-top: 16px; font-size: 12px; color: var(--light-muted); }
.ambassador .section-head { margin-bottom: 24px; }
.ambassador .micro { margin-top: 16px; }
.ambassador .text-link { margin-top: 24px; }
.specs-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 80px; }
.spec-photo { display: flex; align-items: flex-end; height: 344px; padding: 24px; background: var(--photo); color: var(--ink); }
.spec-photo img { height: 100%; width: 50%; }
.spec-photo > span { font-size: 16px; padding-bottom: 16px; }
.spec-photo small { display: block; font-size: 12px; color: var(--muted); }
.usage { padding: 24px; background: var(--subtle); border-left: 2px solid var(--secondary); margin-bottom: 32px; }
.usage h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.usage p { font-size: 14px; }
.usage .micro { font-size: 12px; margin-top: 8px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.spec-table caption { text-align: left; font-size: 16px; font-weight: 600; padding-bottom: 16px; }
.spec-table th,.spec-table td { text-align: left; padding: 16px 0; border-bottom: 1px solid var(--border); vertical-align: top; }
.spec-table th { font-weight: 400; width: 36%; color: var(--secondary); padding-right: 24px; }
.faq { border-top: 1px solid var(--border); }
.faq-layout { display: grid; grid-template-columns: 1fr 1.3fr; gap: 80px; }
.faq h2 { font-size: 32px; }
details { border-bottom: 1px solid var(--border); }
details:first-child { border-top: 1px solid var(--border); }
summary { display: flex; align-items: baseline; gap: 16px; list-style: none; padding-block: 24px; cursor: pointer; font-size: 14px; }
summary::-webkit-details-marker { display: none; }
.question-number { font-size: 12px; color: var(--secondary); }
.faq-plus { margin-left: auto; flex-shrink: 0; font-size: 20px; }
details[open] .faq-plus { transform: rotate(45deg); }
details > p { padding: 0 32px 24px; font-size: 14px; color: var(--secondary); }
.purchase { background: var(--subtle); border-top: 1px solid var(--border); }
.purchase-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; align-items: center; }
.purchase-photo { height: 616px; background: var(--photo); color: var(--ink); display: flex; align-items: center; justify-content: center; position: relative; }
.purchase-photo img { height: 520px; }
.purchase-photo .eyebrow { position: absolute; bottom: 24px; left: 24px; }
.purchase-content > .eyebrow { color: var(--secondary); margin-bottom: 24px; }
.purchase h2 { font-size: 32px; }
.purchase-name { font-size: 24px; margin-top: 32px; }
.purchase-name span { display: block; font-size: 12px; color: var(--secondary); }
.purchase-price { display: flex; flex-direction: column; margin-block: 24px; }
.purchase-price strong { font-size: 40px; font-weight: 500; line-height: 1.3; }
.purchase-price small { font-size: 14px; margin-left: 8px; }
.purchase-price > span { font-size: 12px; color: var(--secondary); margin-top: 8px; }
.quantity-row { display: flex; align-items: center; gap: 16px; font-size: 14px; }
.quantity-control { display: flex; border: 1px solid var(--border); background: var(--surface); }
.quantity-control button { border: 0; background: transparent; width: 40px; min-height: 40px; padding: 8px; }
.quantity-control input { border: 0; width: 64px; padding: 8px 0; background: transparent; color: inherit; text-align: center; appearance: textfield; }
.quantity-control input::-webkit-inner-spin-button { appearance: none; }
.field-error { color: var(--error); font-size: 12px; }
.field-error:not(:empty) { margin-top: 8px; }
.theme-b .field-error { color: var(--white); text-decoration: underline; }
.total-row { border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: baseline; gap: 16px; padding-top: 24px; margin-top: 24px; font-size: 14px; }
.total-row output { font-size: 24px; overflow-wrap: anywhere; }
.purchase-button { margin-block: 24px 16px; width: 100%; }
footer { background: var(--ink); color: var(--white); padding-block: 48px 24px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 48px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; border-top: 1px solid var(--dark-line); padding-top: 24px; font-size: 12px; color: var(--light-muted); }
.footer-bottom small { font-size: 12px; }
dialog { width: min(560px,calc(100% - 48px)); padding: 48px; border: 1px solid var(--line); background: var(--white); color: var(--ink); box-shadow: var(--dialog-shadow); }
dialog::backdrop { background: var(--glass); }
dialog h2 { font-size: 24px; margin-block: 16px; }
dialog .micro { color: var(--muted); }
.dialog-close { position: absolute; right: 8px; top: 8px; width: 40px; height: 40px; padding: 0; background: transparent; border: 0; font-size: 24px; }
.dialog-order { display: flex; flex-direction: column; gap: 8px; padding-block: 24px; margin-block: 24px; border-block: 1px solid var(--line); }
.dialog-back { margin-top: 24px; --border: var(--line); --subtle: var(--paper); }

/* B案：中央の製品を軸に、技術資料のような密度と大胆な文字を組み合わせる。 */
.theme-b h1,.theme-b .section-head h2,.theme-b .purchase h2 { font-family: var(--sans); font-weight: 600; letter-spacing: -.015em; }
.hero-b .hero-layout { grid-template-columns: 1.25fr 1fr .6fr; gap: 40px; padding-top: 120px; padding-bottom: 48px; align-items: end; }
.hero-b h1 { font-size: clamp(32px,3.1vw,44px); line-height: 1.5; }
.hero-word { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); font-size: clamp(100px,16vw,232px); font-weight: 700; letter-spacing: -.055em; line-height: 1; white-space: nowrap; color: var(--dark); }
.hero-b .product-stage { height: 536px; align-self: center; }
.hero-b .product-stage > img { height: 464px; max-width: 86%; }
.hero-b .stage-label { font-size: 8px; }
.hero-b .stage-caption > span:last-child { display: none; }
.hero-b .stage-caption > span:first-child { font-size: 24px; }
.hero-aside { display: flex; flex-direction: column; gap: 32px; padding-bottom: 32px; font-size: 14px; }
.vertical-label { writing-mode: vertical-rl; font-size: 11px; letter-spacing: .15em; height: 208px; margin-left: auto; color: var(--light-muted); }
.theme-b .everyday-layout { grid-template-columns: .9fr 1.1fr; }
.theme-b .film-grid { grid-template-columns: 1.5fr 1fr; }
.theme-b .film-card:first-child { grid-row: span 2; }
.theme-b .film-card:first-child .video-shell { aspect-ratio: 1 / 1; }
.theme-b .film-card:not(:first-child) { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.theme-b .film-card:not(:first-child) .video-shell { aspect-ratio: 1 / 1; }
.theme-b .film-card:not(:first-child) .film-meta { padding: 0; }
.theme-b .feature { grid-template-columns: 128px 1fr 1fr; }
.theme-b .feature-num { font-family: var(--sans); font-weight: 400; }
.theme-b .ambassador-placeholder { background: var(--ink); }
.theme-b .spec-photo { max-width: 320px; }

/* C案：紙面のように明るく、製品まわりにゆとりを持たせる。 */
.theme-c .site-header { background: var(--paper); color: var(--ink); border-color: var(--line); }
.theme-c .site-header nav a:last-child { border-color: var(--ink); }
.theme-c .site-header nav a:hover { color: var(--muted); }
.hero-c { background: var(--paper); color: var(--ink); }
.hero-c .hero-layout { gap: 80px; padding-block: 56px 64px; }
.hero-c .hero-copy > .eyebrow,.hero-c .hero-lead,.hero-c .hero-product-name > span,.hero-c .hero-price > span,.hero-c .hero-note { color: var(--muted); }
.hero-c h1 { font-size: clamp(40px,4.5vw,64px); }
.hero-c .product-stage { background: var(--warm); border-radius: var(--radius); height: 592px; transform: rotate(3deg); box-shadow: none; }
.hero-c .product-stage > img { transform: rotate(-11deg); height: 472px; }
.hero-c .hero-bottom { border-color: var(--line); }
.theme-c .everyday-layout { display: block; }
.theme-c .everyday .section-head { text-align: center; margin-bottom: 48px; }
.theme-c .everyday .section-lead { margin-inline: auto; }
.theme-c .everyday-content { max-width: 960px; margin-inline: auto; }
.theme-c .everyday-content > .body-copy { margin-inline: auto; text-align: center; }
.theme-c .device-list { display: grid; grid-template-columns: repeat(3,1fr); border: 0; gap: 32px; }
.theme-c .device-list > div { display: block; border-top: 1px solid var(--border); border-bottom: 0; }
.theme-c .device-list h3 { margin-block: 16px 8px; }
.theme-c .film-grid { grid-template-columns: repeat(3,1fr); gap: 32px; }
.theme-c .feature { grid-template-columns: 96px 1fr 1fr; }
.theme-c .ambassador-placeholder { background: var(--warm); color: var(--ink); border-color: var(--line); border-radius: var(--radius); }
.theme-c .ambassador-placeholder .eyebrow,.theme-c .placeholder-note { color: var(--muted); }
.theme-c .placeholder-note { border-color: var(--line); }
.theme-c .ambassador { background: var(--surface); }
.theme-c .spec-photo,.theme-c .purchase-photo { background: var(--warm); border-radius: var(--radius); }
.theme-c .purchase-photo img { transform: rotate(-8deg); }
.theme-c .purchase { background: var(--white); }

/* 比較ページ：3案の方向性を最初の画面で並べて見せる。 */
.comparison { background: var(--paper); }
.compare-header { display: flex; justify-content: space-between; align-items: center; padding-block: 32px; border-bottom: 1px solid var(--line); }
.compare-header > .eyebrow { color: var(--muted); }
.compare-intro { padding-block: 56px 48px; }
.compare-intro > .eyebrow { color: var(--muted); margin-bottom: 24px; }
.compare-title { display: flex; justify-content: space-between; align-items: flex-end; gap: 48px; }
.compare-title h1 { font: 500 56px/1.35 var(--serif); letter-spacing: .03em; }
.compare-title > div { font-size: 14px; }
.compare-title p + p { margin-top: 8px; color: var(--muted); }
.compare-price { display: inline-block; font-size: 12px; margin-top: 16px; border-top: 1px solid var(--line); padding-top: 16px; }
.comparison-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.proposal-card { min-width: 0; display: block; border-bottom: 1px solid var(--line); }
.proposal-preview { background: var(--ink); color: var(--white); height: 304px; padding: 24px; position: relative; overflow: hidden; transition: transform .3s; }
.proposal-card:hover .proposal-preview { transform: translateY(-4px); }
.preview-top { display: flex; justify-content: space-between; align-items: baseline; position: relative; z-index: 1; font-size: 10px; }
.preview-top > span:first-child { font-size: 16px; font-style: italic; font-weight: 700; }
.preview-copy { position: relative; z-index: 1; font: 500 24px/1.6 var(--serif); margin-top: 40px; }
.preview-product { position: absolute; width: 112px; height: 224px; background: var(--photo); bottom: 0; right: 16px; display: grid; place-items: center; }
.preview-product img { height: 200px; }
.preview-name { position: absolute; bottom: 24px; left: 24px; font-size: 16px; }
.card-b .proposal-preview { background: var(--dark); }
.card-b .preview-product { right: 50%; transform: translateX(50%); width: 96px; height: 192px; }
.card-b .preview-product img { height: 184px; }
.card-b .preview-copy { font: 600 19px/1.5 var(--sans); margin-top: 16px; }
.card-b .preview-name { bottom: 16px; left: auto; right: 16px; font-size: 12px; writing-mode: vertical-rl; }
.card-c .proposal-preview { background: var(--warm); color: var(--ink); }
.card-c .preview-copy { font-size: 24px; }
.card-c .preview-product { background: var(--warm); transform: rotate(-10deg); right: 0; bottom: -8px; }
.card-c .preview-name { font-size: 12px; }
.proposal-card-info { padding-block: 24px; }
.proposal-heading { display: flex; align-items: center; gap: 16px; }
.proposal-letter { font: 400 40px/1 var(--serif); }
.proposal-heading .eyebrow { font-size: 9px; color: var(--muted); letter-spacing: .04em; }
.proposal-heading h2 { font-size: 18px; font-weight: 600; margin-top: 8px; }
.card-arrow { font-size: 24px; margin-left: auto; }
.proposal-card-info > p { font-size: 13px; line-height: 1.9; color: var(--muted); margin-top: 16px; }
.proposal-open { display: flex; justify-content: space-between; margin-top: 24px; font-size: 14px; }
.proposal-details { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; padding-block: 80px 48px; }
.proposal-details .eyebrow { color: var(--muted); margin-bottom: 16px; }
.proposal-details h2 { font-size: 20px; margin-bottom: 16px; }
.proposal-details p,.proposal-details li { font-size: 14px; color: var(--muted); }
.proposal-details ul { margin: 0; padding-left: 16px; }
.proposal-disclaimer { font-size: 12px; color: var(--muted); padding-block: 24px; border-top: 1px solid var(--line); }
.compare-footer { background: transparent; color: var(--muted); display: flex; justify-content: space-between; font-size: 12px; padding-block: 24px; }

@media (max-width: 1050px) {
  .site-header nav { gap: 16px; }
  .site-header nav a:nth-child(2) { display: none; }
  .hero-layout,.hero-c .hero-layout { gap: 32px; }
  .hero h1,.hero-c h1 { font-size: 44px; }
  .hero-b .hero-layout { grid-template-columns: 1.2fr 1fr; }
  .hero-aside { display: none; }
  .hero-b h1 { font-size: 40px; }
  .everyday-layout,.specs-layout,.faq-layout,.ambassador-layout,.purchase-layout { gap: 48px; }
  .device-list > div { grid-template-columns: 24px 1fr; }
  .device-list p { grid-column: 2; }
  .film-grid,.theme-c .film-grid { gap: 16px; }
  .feature,.theme-b .feature,.theme-c .feature { grid-template-columns: 64px 1fr 1fr; gap: 24px; }
  .comparison-grid { gap: 16px; }
  .proposal-preview { padding: 16px; height: 280px; }
  .preview-copy,.card-c .preview-copy { font-size: 19px; }
  .preview-product { right: 0; width: 96px; }
  .proposal-heading { gap: 8px; }
  .proposal-heading h2 { font-size: 16px; }
  .proposal-letter { font-size: 32px; }
}
@media (max-width: 700px) {
  .brand-mark { font-size: 30px; }
  .brand { gap: 8px; }
  .brand-name { font-size: 10px; }
  .brand-name small { font-size: 6px; margin-top: 0; }
  .strip-name { display: none; }
  .proposal-strip .container { gap: 8px; }
  .site-header > .container { min-height: 72px; gap: 16px; }
  .site-header nav a { display: none; }
  .site-header nav a:last-child { display: inline; font-size: 10px; white-space: nowrap; }
  .hero-layout,.hero-c .hero-layout { grid-template-columns: 1fr; gap: 40px; padding-block: 40px 32px; }
  .hero h1,.hero-c h1 { font-size: 36px; line-height: 1.5; letter-spacing: 0; }
  .hero-copy > .eyebrow { font-size: 10px; margin-bottom: 16px; }
  .hero-lead { font-size: 14px; margin-top: 16px; }
  .hero-product-name { margin-top: 24px; font-size: 20px; }
  .hero-price { margin-block: 16px; gap: 16px; }
  .hero-price strong { font-size: 28px; }
  .hero-price strong small { font-size: 11px; }
  .hero-price > span { font-size: 11px; }
  .hero-copy .button { width: 100%; }
  .hero-note { font-size: 10px; }
  .product-stage { height: 392px; }
  .product-stage > .product-photo { height: 336px; }
  .stage-label { top: 16px; left: 16px; right: 16px; font-size: 8px; }
  .stage-caption { bottom: 16px; left: 16px; right: 16px; }
  .stage-caption > span:first-child { font-size: 32px; }
  .stage-caption > span:last-child { font-size: 8px; }
  .hero-bottom { padding-block: 16px; font-size: 10px; gap: 16px; }
  .hero-bottom a { font-size: 0; gap: 0; }
  .hero-bottom a span { font-size: 16px; }
  .section-head { margin-bottom: 32px; }
  .section-head .eyebrow { margin-bottom: 16px; }
  .section-head h2,.purchase h2,.faq h2 { font-size: 28px; }
  .section-lead { margin-top: 16px; }
  .everyday-layout,.theme-b .everyday-layout,.specs-layout,.faq-layout,.ambassador-layout,.purchase-layout { grid-template-columns: 1fr; gap: 40px; }
  .device-list > div { grid-template-columns: 24px 1fr; padding-block: 16px; gap: 8px 16px; }
  .device-list p { font-size: 13px; }
  .film-grid,.theme-c .film-grid,.theme-b .film-grid { grid-template-columns: 1fr; gap: 32px; }
  .video-shell { aspect-ratio: 16/10; }
  .theme-b .film-card:first-child { grid-row: auto; }
  .theme-b .film-card:first-child .video-shell { aspect-ratio: 16/10; }
  .theme-b .film-card:not(:first-child) { display: block; }
  .theme-b .film-card:not(:first-child) .video-shell { aspect-ratio: 16/10; }
  .theme-b .film-card:not(:first-child) .film-meta { padding-top: 16px; }
  .feature,.theme-b .feature,.theme-c .feature { grid-template-columns: 48px 1fr; gap: 16px; padding-block: 32px; }
  .feature-num { font-size: 40px; }
  .feature-title h3 { font-size: 22px; }
  .feature > p { grid-column: 2; font-size: 14px; }
  .source-note { line-height: 1.9; }
  .ambassador-placeholder { min-height: 304px; padding: 24px; }
  .placeholder-word { font-size: 36px; }
  .ambassador-placeholder .eyebrow { font-size: 9px; }
  .ambassador .section-head { margin-bottom: 16px; }
  .spec-photo { height: 264px; }
  .spec-table { font-size: 13px; }
  .spec-table th { width: 37%; padding-right: 16px; }
  .usage { padding: 16px; }
  .faq .section-head { margin-bottom: 0; }
  summary { gap: 8px; }
  details > p { padding: 0 0 24px; }
  .purchase-photo { height: 376px; }
  .purchase-photo img { height: 320px; }
  .purchase-photo .eyebrow { font-size: 9px; bottom: 16px; left: 16px; }
  .purchase-content > .eyebrow { margin-bottom: 16px; }
  .purchase-price strong { font-size: 36px; }
  .footer-top { gap: 24px; padding-bottom: 32px; flex-wrap: wrap; }
  .footer-top .text-link { font-size: 12px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  dialog { padding: 40px 24px 24px; }
  dialog h2 { font-size: 20px; }
  dialog > p { font-size: 14px; }
  .hero-b .hero-layout { grid-template-columns: 1fr; padding-top: 80px; gap: 40px; }
  .hero-b h1 { font-size: 34px; }
  .hero-b .product-stage { height: 392px; width: 80%; justify-self: center; }
  .hero-b .product-stage > img { height: 344px; }
  .hero-word { font-size: 76px; top: 8px; }
  .theme-b .spec-photo { max-width: none; }
  .hero-c .product-stage { height: 408px; margin: 8px; }
  .hero-c .product-stage > img { height: 336px; }
  .theme-c .device-list { grid-template-columns: 1fr; gap: 0; }
  .theme-c .device-list > div { display: grid; }
  .theme-c .device-list h3 { margin: 0; }
  .theme-c .everyday .section-head { text-align: left; margin-bottom: 32px; }
  .theme-c .everyday-content > .body-copy { text-align: left; }
  .compare-header { padding-block: 24px; gap: 16px; flex-wrap: wrap; }
  .compare-header > .eyebrow { font-size: 10px; }
  .compare-intro { padding-block: 40px 32px; }
  .compare-title { flex-direction: column; align-items: flex-start; gap: 24px; }
  .compare-title h1 { font-size: 40px; }
  .compare-title > div { font-size: 13px; }
  .comparison-grid { grid-template-columns: 1fr; gap: 40px; }
  .proposal-preview { height: 304px; padding: 24px; }
  .preview-copy,.card-c .preview-copy { font-size: 24px; }
  .preview-product { width: 112px; right: 16px; }
  .proposal-heading { gap: 16px; }
  .proposal-heading h2 { font-size: 20px; }
  .proposal-letter { font-size: 40px; }
  .proposal-heading .eyebrow { font-size: 10px; }
  .proposal-details { grid-template-columns: 1fr; gap: 40px; padding-block: 64px 40px; }
  .compare-footer { flex-direction: column; gap: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { transition: none !important; animation: none !important; }
}