:root {
  --navy: #062c3b;
  --navy-2: #0a3c4d;
  --sea: #0d7f88;
  --sea-bright: #16a6a6;
  --foam: #eef8f7;
  --off: #f7f5f0;
  --white: #ffffff;
  --ink: #17272c;
  --muted: #607177;
  --line: #d9e2e1;
  --gold: #b7872c;
  --rakuten: #bf0000;
  --rakuten-dark: #9f0000;
  --radius: 18px;
  --shadow: 0 18px 48px rgba(4, 39, 51, .12);
  --container: 1160px;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: var(--font-sans); font-size: 16px; line-height: 1.75; }
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(calc(100% - 32px), var(--container)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(6,44,59,.08); backdrop-filter: blur(12px); }
.header-inner { width: min(calc(100% - 28px), 1240px); height: 68px; margin-inline: auto; display: flex; align-items: center; gap: 24px; }
.brand { width: 122px; display: flex; align-items: center; }
.brand img { width: 118px; height: 54px; object-fit: contain; }
.site-header nav { display: none; }
.header-buy { margin-left: auto; color: var(--white); background: var(--rakuten); font-size: .875rem; font-weight: 800; padding: 9px 14px; border-radius: 999px; }

.hero { background: var(--navy); color: var(--white); }
.hero__media { position: relative; min-height: 46vh; }
.hero-picture, .hero-picture img { width: 100%; height: 100%; }
.hero-picture img { min-height: 46vh; object-fit: cover; object-position: center; }
.hero__media::after { content: ""; position: absolute; inset: 35% 0 0; background: linear-gradient(transparent, rgba(6,44,59,.9)); }
.hero__origin { position: absolute; z-index: 2; left: 16px; bottom: 16px; padding: 7px 12px; border: 1px solid rgba(255,255,255,.7); background: rgba(6,44,59,.72); font-size: .825rem; font-weight: 800; letter-spacing: .12em; }
.hero__content { padding: 30px 20px 36px; }
.eyebrow { margin: 0 0 8px; color: var(--sea-bright); font-size: .78rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { margin: 0; font-family: var(--font-serif); font-size: clamp(2rem, 8.2vw, 3.7rem); font-weight: 600; line-height: 1.28; letter-spacing: .01em; }
.hero__lead { margin: 18px 0 20px; color: rgba(255,255,255,.84); line-height: 1.85; }
.hero__proof { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0 0 24px; }
.hero__proof li { padding: 4px 10px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; font-size: .8rem; font-weight: 800; }
.hero__offer { display: grid; gap: 14px; padding: 18px; color: var(--ink); background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero__offer strong { display: block; font-size: 1.08rem; line-height: 1.5; }
.offer-label { display: inline-block; margin-bottom: 5px; color: var(--sea); font-size: .75rem; font-weight: 900; }
.price { display: block; margin-top: 6px; font-size: 1.45rem; font-weight: 900; line-height: 1.3; }
.price--pending { font-size: .94rem; color: var(--muted); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 12px 20px; border-radius: 10px; font-weight: 900; line-height: 1.35; text-align: center; transition: background-color .15s ease, transform .15s ease; }
.button:active { transform: translateY(1px); }
.button--rakuten { color: var(--white); background: var(--rakuten); box-shadow: 0 8px 22px rgba(191,0,0,.22); }
.button--rakuten:hover { background: var(--rakuten-dark); }
.button--large { min-height: 58px; font-size: 1rem; }
.button--full { width: 100%; }
.secondary-link { display: inline-block; margin-top: 16px; color: rgba(255,255,255,.82); font-weight: 800; font-size: .9rem; }

.trust-strip { padding: 26px 0; background: var(--foam); border-bottom: 1px solid #d8ece9; }
.strength-scroll { display: grid; grid-auto-flow: column; grid-auto-columns: 76%; gap: 12px; overflow-x: auto; padding: 0 0 8px; scroll-snap-type: x mandatory; scrollbar-width: none; }
.strength-scroll::-webkit-scrollbar, .product-scroll::-webkit-scrollbar { display: none; }
.strength-scroll article { scroll-snap-align: start; min-height: 132px; padding: 18px; background: var(--white); border: 1px solid var(--line); border-radius: 14px; }
.strength-scroll span { color: var(--sea); font-weight: 900; font-size: .74rem; letter-spacing: .1em; }
.strength-scroll strong { display: block; margin: 3px 0 4px; font-size: 1.05rem; }
.strength-scroll p { margin: 0; color: var(--muted); font-size: .88rem; line-height: 1.55; }

.section { padding: 64px 0; }
.products-section { background: var(--off); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.section-heading h2 { margin: 0; color: var(--navy); font-family: var(--font-serif); font-size: clamp(1.75rem, 7vw, 2.75rem); font-weight: 600; line-height: 1.35; }
.section-intro { max-width: 720px; margin: 12px 0 26px; color: var(--muted); }
.text-link { display: inline-block; color: var(--sea); font-size: .9rem; font-weight: 900; }
.desktop-only { display: none; }
.product-scroll { display: grid; grid-auto-flow: column; grid-auto-columns: 86%; gap: 16px; overflow-x: auto; padding: 8px 2px 20px; scroll-snap-type: x mandatory; scrollbar-width: none; }
.product-card { position: relative; scroll-snap-align: center; overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(6,44,59,.07); }
.product-card--recommended { border: 2px solid var(--sea); transform: translateY(-2px); }
.recommend-badge { position: absolute; z-index: 3; top: 12px; left: 12px; padding: 5px 10px; color: var(--white); background: var(--sea); border-radius: 999px; font-size: .76rem; font-weight: 900; }
.product-card__image { display: block; aspect-ratio: 4/3; background: #dbe6e3; overflow: hidden; }
.product-card__image picture, .product-card__image img { width: 100%; height: 100%; }
.product-card__image img { object-fit: cover; transition: transform .25s ease; }
.product-card__image:hover img { transform: scale(1.02); }
.product-card__body { padding: 20px; }
.product-card__weight { margin: 0; color: var(--sea); font-size: 1.45rem; font-weight: 900; }
.product-card h3 { margin: 2px 0 8px; color: var(--navy); font-size: 1rem; line-height: 1.5; }
.product-specs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 16px 0 10px; }
.product-specs div { padding: 9px 10px; background: var(--foam); border-radius: 9px; }
.product-specs dt { color: var(--muted); font-size: .72rem; }
.product-specs dd { margin: 1px 0 0; font-size: .88rem; font-weight: 900; }
.product-use { margin: 0 0 16px; color: var(--muted); font-size: .88rem; }
.product-card .text-link { margin-top: 12px; }
.note { margin: 18px 0 0; color: var(--muted); font-size: .78rem; }
.mobile-only { display: inline-flex; }
.button--outline { color: var(--navy); background: transparent; border: 1px solid var(--navy); }
.button--primary { color: var(--white); background: var(--navy); }
.button--amazon { width: 100%; margin-top: 10px; color: var(--ink); background: var(--white); border: 1px solid #b8c2c5; box-shadow: none; }
.button--compact { min-height: 42px; font-size: .85rem; }

.chooser { color: var(--white); background: var(--navy); }
.chooser .section-heading h2 { color: var(--white); }
.use-grid { display: grid; gap: 12px; margin-top: 24px; }
.use-card { position: relative; display: grid; grid-template-columns: 42px 1fr auto; align-items: center; gap: 4px 12px; padding: 18px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); border-radius: 14px; }
.use-card > span { grid-row: 1 / 3; display: grid; place-items: center; width: 38px; height: 38px; color: var(--sea-bright); border: 1px solid rgba(255,255,255,.25); border-radius: 50%; font-size: .72rem; font-weight: 900; }
.use-card strong { line-height: 1.45; }
.use-card b { grid-column: 3; grid-row: 1 / 3; color: var(--white); font-size: 1.45rem; }
.use-card small { grid-column: 2; color: rgba(255,255,255,.65); }
.use-card i { display: none; }

.gallery-section { background: var(--white); }
.photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.photo-grid figure { position: relative; aspect-ratio: 1; margin: 0; overflow: hidden; background: var(--foam); }
.photo-grid__wide { grid-column: 1 / -1; aspect-ratio: 16 / 10 !important; }
.photo-grid picture, .photo-grid img { width: 100%; height: 100%; }
.photo-grid img { object-fit: cover; }
.photo-grid figcaption { position: absolute; left: 8px; right: 8px; bottom: 8px; width: fit-content; padding: 4px 8px; color: var(--white); background: rgba(3,31,42,.78); font-size: .72rem; font-weight: 800; }

.award-section { background: var(--off); }
.award-grid { display: grid; gap: 28px; align-items: center; }
.award-mark { display: grid; place-items: center; padding: 0; }
.award-mark img { width: min(100%, 440px); max-height: 275px; object-fit: contain; }
.award-grid h2, .process-section h2, .faq-section h2, .about-strip h2, .final-cta h2, .split-feature h2, .guide-tips h2, .other-products h2, .product-scene h2 { margin: 0; color: var(--navy); font-family: var(--font-serif); font-size: clamp(1.65rem, 6vw, 2.5rem); font-weight: 600; line-height: 1.4; }
.award-facts { display: grid; gap: 8px; margin: 20px 0 0; padding: 0; list-style: none; }
.award-facts li { display: grid; grid-template-columns: 5.5em 1fr; gap: 10px; padding: 10px 12px; background: var(--white); border: 1px solid var(--line); border-radius: 9px; }
.award-facts span { color: var(--muted); font-size: .76rem; font-weight: 700; }
.award-facts strong { color: var(--navy); font-size: .88rem; line-height: 1.5; }
.award-sources { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 14px 0 0; font-size: .76rem; }
.award-sources::before { content: "出典"; color: var(--muted); }
.award-sources a { color: var(--sea); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.check-list { display: grid; gap: 7px; padding: 0; margin: 18px 0 0; list-style: none; }
.check-list li::before { content: "✓"; margin-right: 8px; color: var(--sea); font-weight: 900; }
.award-grid figure { margin: 0; }
.award-grid figure picture, .award-grid figure img { width: 100%; }
.award-grid figure img { aspect-ratio: 4 / 3; object-fit: cover; }
.award-grid figcaption { margin-top: 5px; color: var(--muted); font-size: .75rem; }
.instagram-selection { min-width: 0; }
.instagram-selection .instagram-media { box-sizing: border-box !important; display: block; width: 100% !important; max-width: 540px !important; min-width: 0 !important; margin: 0 !important; background: var(--white); border: 1px solid var(--line) !important; border-radius: var(--radius) !important; }
.instagram-selection .instagram-media > div { padding: 18px !important; }
.instagram-selection .instagram-media a { color: var(--sea); font-size: .84rem; font-weight: 900; }
.instagram-selection > p { margin: 8px 0 0; color: var(--muted); font-size: .75rem; line-height: 1.55; }
.gallery-video { max-width: 540px; margin: 32px auto 0; }
.gallery-video .eyebrow { margin-bottom: 6px; }
.gallery-video h3 { margin: 0 0 16px; color: var(--navy); font-family: var(--font-serif); font-size: clamp(1.35rem, 5vw, 1.9rem); font-weight: 600; line-height: 1.45; }

.process-section { background: var(--foam); }
.process { display: grid; grid-template-columns: repeat(5, minmax(112px, 1fr)); gap: 10px; margin: 26px 0 0; padding: 0 0 10px; list-style: none; overflow-x: auto; scrollbar-width: none; }
.process li { position: relative; display: grid; place-items: center; min-height: 136px; padding: 14px; text-align: center; background: var(--white); border: 1px solid var(--line); border-radius: 12px; }
.process li::after { content: "→"; position: absolute; right: -10px; top: 50%; z-index: 2; color: var(--sea); font-weight: 900; transform: translate(50%, -50%); }
.process li:last-child::after { display: none; }
.process span { display: grid; place-items: center; width: 28px; height: 28px; color: var(--white); background: var(--sea); border-radius: 50%; font-size: .78rem; font-weight: 900; }
.process b { display: block; color: var(--navy); }
.process small { color: var(--muted); }

.narrow { max-width: 820px; }
.faq-list { margin-top: 24px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 19px 0; color: var(--navy); font-weight: 900; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { flex: none; display: grid; place-items: center; width: 28px; height: 28px; color: var(--sea); background: var(--foam); border-radius: 50%; transition: transform .2s ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details div { padding: 0 0 20px; color: var(--muted); }
.faq-list details p { margin: 0; }
.faq-section .mobile-only { width: 100%; margin-top: 24px; }

.final-cta { padding: 62px 0; color: var(--white); background: var(--navy); }
.final-cta h2 { color: var(--white); }
.final-cta p:not(.eyebrow) { color: rgba(255,255,255,.76); }
.compact-products { display: grid; gap: 8px; margin: 24px 0; }
.compact-product { display: grid; grid-template-columns: 72px 1fr auto; align-items: center; gap: 12px; overflow: hidden; padding-right: 14px; color: var(--ink); background: var(--white); border-radius: 11px; }
.compact-product img { width: 72px; height: 64px; object-fit: cover; }
.compact-product b, .compact-product small { display: block; }
.compact-product b { color: var(--navy); font-size: 1.08rem; }
.compact-product small { color: var(--muted); }
.final-cta--light { color: var(--ink); background: var(--off); }
.final-cta--light h2 { color: var(--navy); }

.about-strip { padding: 64px 0; background: var(--white); }
.about-strip .container { display: grid; gap: 26px; align-items: center; }
.about-strip figure { margin: 0; }
.about-strip figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.about-strip figcaption { color: var(--muted); font-size: .75rem; }

.breadcrumb { overflow: hidden; padding-top: 12px; padding-bottom: 12px; }
.breadcrumb ol { display: flex; gap: 7px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: .72rem; white-space: nowrap; }
.breadcrumb li { overflow: hidden; text-overflow: ellipsis; }
.breadcrumb li:not(:last-child)::after { content: "/"; margin-left: 7px; color: #aebabb; }
.breadcrumb a { text-decoration: underline; text-underline-offset: 3px; }
.page-hero { padding: 52px 0 58px; color: var(--white); background: var(--navy); }
.page-hero h1 { max-width: 780px; margin: 0; font-family: var(--font-serif); font-size: clamp(2rem, 8vw, 3.6rem); font-weight: 600; line-height: 1.3; }
.page-hero p:last-child { max-width: 680px; margin: 16px 0 0; color: rgba(255,255,255,.76); }
.product-grid { display: grid; gap: 20px; }
.split-feature > .container, .split-feature.container { display: grid; gap: 28px; align-items: center; }
.split-feature picture, .split-feature img { width: 100%; }
.split-feature img { aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }

.guide-section { background: var(--off); }
.guide-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin-bottom: 28px; }
.guide-summary div { display: flex; flex-direction: column; justify-content: center; min-height: 132px; padding: 12px; text-align: center; background: var(--white); border: 1px solid var(--line); border-radius: 12px; }
.guide-summary .is-recommended { color: var(--white); background: var(--sea); border-color: var(--sea); box-shadow: 0 10px 24px rgba(13,127,136,.22); }
.guide-summary span { font-size: .72rem; font-weight: 900; }
.guide-summary b { display: block; font-size: clamp(1.55rem, 7vw, 2.6rem); line-height: 1.3; }
.guide-summary small { color: var(--muted); }
.guide-summary .is-recommended small { color: rgba(255,255,255,.8); }
.comparison-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--white); }
.comparison-table { width: 100%; min-width: 720px; border-collapse: collapse; }
.comparison-table th, .comparison-table td { padding: 16px; border-bottom: 1px solid var(--line); text-align: left; }
.comparison-table thead th { color: var(--white); background: var(--navy); font-size: .82rem; }
.comparison-table tbody th { color: var(--navy); font-size: 1.25rem; }
.comparison-table tr.is-recommended { background: var(--foam); }
.mini-badge { display: block; width: fit-content; margin-bottom: 4px; padding: 2px 6px; color: var(--white); background: var(--sea); border-radius: 999px; font-size: .68rem; }
.table-buy { display: inline-block; padding: 8px 12px; color: var(--white); background: var(--rakuten); border-radius: 7px; font-size: .82rem; font-weight: 900; }
.guide-tips { background: var(--white); }
.tip-grid { display: grid; gap: 14px; margin-top: 24px; }
.tip-grid article { padding: 22px; background: var(--off); border-top: 3px solid var(--sea); }
.tip-grid span { color: var(--sea); font-size: .75rem; font-weight: 900; }
.tip-grid h3, .tip-grid h2 { margin: 6px 0 8px; color: var(--navy); font-size: 1.08rem; font-family: inherit; }
.tip-grid p { margin: 0; color: var(--muted); }

.faq-page { background: var(--white); }
.faq-contact { margin-top: 42px; padding: 24px; background: var(--off); border-radius: var(--radius); }
.faq-contact h2 { margin: 0 0 8px; }
.faq-contact p { color: var(--muted); }

.about-hero { padding: 48px 0 0; background: var(--off); }
.about-hero .container { display: grid; gap: 28px; }
.about-hero h1 { margin: 0; color: var(--navy); font-family: var(--font-serif); font-size: clamp(2rem, 8vw, 3.8rem); font-weight: 600; line-height: 1.35; }
.about-hero picture, .about-hero img { width: 100%; }
.about-hero img { aspect-ratio: 16 / 10; object-fit: cover; }
.about-values { display: grid; gap: 14px; }
.about-values article { padding: 24px; border: 1px solid var(--line); }
.about-values span { color: var(--sea); font-size: .75rem; font-weight: 900; letter-spacing: .12em; }
.about-values h2 { margin: 8px 0; color: var(--navy); font-size: 1.3rem; }
.about-values p { margin: 0; color: var(--muted); }
.about-location { background: var(--foam); }

.column-grid { display: grid; gap: 24px; }
.column-card { overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(6,44,59,.06); }
.column-card picture, .column-card img { width: 100%; }
.column-card img { aspect-ratio: 16 / 10; object-fit: cover; }
.column-card div { padding: 22px; }
.column-card time { color: var(--muted); font-size: .75rem; }
.column-card h2 { margin: 5px 0 8px; color: var(--navy); font-size: 1.28rem; line-height: 1.55; }
.column-card p { margin: 0 0 14px; color: var(--muted); }
.column-card span { color: var(--sea); font-weight: 900; }

.article { padding: 44px 0 80px; }
.article__header h1 { margin: 0; color: var(--navy); font-family: var(--font-serif); font-size: clamp(2rem, 7vw, 3.5rem); font-weight: 600; line-height: 1.35; }
.article__header > p:not(.eyebrow) { color: var(--muted); }
.article__header time { color: var(--muted); font-size: .8rem; }
.article__visual { margin-top: 28px; }
.article__visual picture, .article__visual img { width: 100%; }
.article__visual img { max-height: 620px; object-fit: cover; }
.article__body { padding-top: 36px; }
.article__body > section { margin-bottom: 38px; }
.article__body h2 { margin: 0 0 12px; padding-left: 14px; color: var(--navy); border-left: 4px solid var(--sea); font-size: 1.4rem; }
.article__body p { color: #34474d; }
.article__lead { max-width: 720px; margin: 16px 0 10px; color: var(--muted); font-size: 1.02rem; line-height: 1.9; }
.article-answer { padding: 24px; background: var(--foam); border: 1px solid #cfe4e1; border-radius: var(--radius); }
.article-answer h2, .article-size-guide h2, .article-faq > h2, .related-columns > h2 { font-family: var(--font-serif); font-weight: 600; }
.article-answer p:last-child { margin-bottom: 0; font-size: 1.03rem; font-weight: 700; line-height: 1.9; }
.article-size-guide { padding: 24px 18px 18px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 28px rgba(6,44,59,.05); }
.article-size-guide h2 { margin-bottom: 16px; }
.article-size-guide__items { display: grid; gap: 10px; }
.article-size-guide__items a { display: grid; grid-template-columns: 64px 1fr auto; align-items: center; gap: 4px 12px; padding: 14px; color: var(--ink); background: var(--off); border: 1px solid var(--line); border-radius: 10px; }
.article-size-guide__items b { grid-row: 1 / 3; color: var(--sea); font-family: var(--font-sans); font-size: 1.35rem; font-weight: 900; }
.article-size-guide__items span { color: var(--navy); font-size: .92rem; font-weight: 900; }
.article-size-guide__items small { color: var(--muted); font-size: .78rem; }
.article-size-guide__items i { grid-column: 3; grid-row: 1 / 3; color: var(--sea); font-size: .74rem; font-style: normal; font-weight: 900; }
.article-size-guide > p { margin: 14px 0 0; color: var(--muted); font-size: .75rem; line-height: 1.6; }
.article-product { display: grid; gap: 18px; margin-top: 48px; padding: 20px; background: var(--foam); border: 1px solid var(--line); border-radius: var(--radius); }
.article-product img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.article-product span { color: var(--sea); font-size: .78rem; font-weight: 900; }
.article-product h2 { margin: 4px 0; padding: 0; border: 0; }
.article-product .text-link { display: block; margin-top: 12px; }
.article-faq { margin-top: 44px; padding-top: 38px; border-top: 1px solid var(--line); }
.article-faq > .eyebrow, .related-columns > .eyebrow { margin-bottom: 6px; }
.related-columns { margin-top: 44px; padding: 30px 22px; background: var(--navy); border-radius: var(--radius); }
.related-columns > h2 { color: var(--white); border-color: var(--sea-bright); }
.related-columns > .eyebrow { color: var(--sea-bright); }
.related-columns > div { display: grid; gap: 9px; }
.related-columns a { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; padding: 13px 14px; color: var(--navy); background: var(--white); border-radius: 9px; font-size: .9rem; font-weight: 900; line-height: 1.55; }
.related-columns a b { color: var(--sea); font-size: 1.1rem; }

.product-detail { padding: 24px 0 64px; }
.product-detail__grid { display: grid; gap: 28px; }
.product-detail__grid > *,
.about-hero .container > *,
.split-feature > .container > *,
.split-feature.container > * { min-width: 0; }
.product-detail__media picture,
.about-hero picture,
.split-feature picture { display: block; max-width: 100%; }
.product-detail__media picture, .product-detail__media img { width: 100%; }
.product-detail__media img { aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }
.product-detail__media > p { color: var(--muted); font-size: .72rem; }
.recommend-badge--static { position: static; display: inline-block; margin-bottom: 10px; }
.product-detail__content h1 { margin: 0; color: var(--navy); font-family: var(--font-serif); font-size: clamp(1.8rem, 7vw, 3rem); font-weight: 600; line-height: 1.4; }
.product-detail__description { color: var(--muted); }
.detail-specs { display: grid; grid-template-columns: 1fr 1fr; margin: 22px 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.detail-specs div { padding: 13px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.detail-specs dt { color: var(--muted); font-size: .75rem; }
.detail-specs dd { margin: 2px 0 0; font-weight: 900; }
.purchase-note { color: var(--muted); font-size: .78rem; text-align: center; }
.product-points { padding-block: 48px; background: var(--foam); }
.product-scene { background: var(--white); border-block: 1px solid var(--line); }
.product-scene img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }
.product-scene p:not(.eyebrow) { color: var(--muted); }
.other-products { background: var(--off); }

.footer-name { color: rgba(255,255,255,.55); font-size: .78rem; }

/* Display copy uses the serif; all commerce and UI copy stays sans-serif. */
.button,
.price,
.product-card__weight,
.product-specs,
.detail-specs,
.guide-summary,
.comparison-table,
.faq-list,
.site-header nav,
.header-buy,
.use-card b {
  font-family: var(--font-sans);
}

.eyebrow,
.strength-scroll span,
.tip-grid span,
.about-values span,
.article-product span {
  font-family: var(--font-sans);
  letter-spacing: .14em;
}

.site-footer { padding: 50px 0 100px; color: rgba(255,255,255,.78); background: #031f2a; }
.footer-logo { width: 150px; padding: 8px; background: var(--white); border-radius: 8px; }
.footer-grid { display: grid; gap: 26px; }
.site-footer p { margin: 12px 0 0; }
.site-footer nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; font-size: .88rem; }
.site-footer nav a:hover { color: var(--white); }
.copyright { width: min(calc(100% - 32px), var(--container)); margin: 34px auto 0 !important; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: .75rem; }
.mobile-buy { position: fixed; z-index: 60; left: 0; right: 0; bottom: 0; padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); box-shadow: 0 -8px 28px rgba(6,44,59,.15); }

@media (min-width: 760px) {
  .header-inner { height: 78px; }
  .brand { width: 150px; }
  .brand img { width: 138px; height: 62px; }
  .site-header nav { display: flex; align-items: center; gap: 24px; margin-left: auto; font-size: .9rem; font-weight: 800; }
  .header-buy { margin-left: 0; padding-inline: 20px; }
  .hero { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(390px, .88fr); min-height: 680px; }
  .hero__media, .hero-picture img { min-height: 680px; }
  .hero__content { display: flex; flex-direction: column; justify-content: center; padding: 64px clamp(36px, 5vw, 78px); }
  .hero__offer { grid-template-columns: 1fr; }
  .strength-scroll { grid-auto-flow: initial; grid-template-columns: repeat(5, 1fr); overflow: visible; }
  .strength-scroll article { min-height: 150px; }
  .section { padding: 92px 0; }
  .desktop-only { display: inline-block; }
  .product-scroll { grid-auto-flow: initial; grid-template-columns: repeat(3, minmax(0, 1fr)); overflow: visible; gap: 22px; padding-bottom: 0; }
  .product-card--recommended { transform: translateY(-10px); }
  .mobile-only { display: none; }
  .use-grid { grid-template-columns: repeat(3, 1fr); }
  .use-card { min-height: 190px; grid-template-columns: 44px 1fr; align-content: center; }
  .use-card b { grid-column: 2; grid-row: auto; font-size: 2rem; }
  .use-card small { grid-column: 2; }
  .use-card i { display: block; position: absolute; right: 18px; bottom: 14px; color: var(--sea-bright); font-style: normal; }
  .photo-grid { grid-template-columns: 1.45fr 1fr 1fr; grid-template-rows: repeat(2, 260px); gap: 12px; }
  .photo-grid figure, .photo-grid__wide { aspect-ratio: auto !important; }
  .photo-grid__wide { grid-column: 1; grid-row: 1 / 3; }
  .award-grid { grid-template-columns: .8fr 1.2fr; }
  .process { overflow: visible; gap: 18px; }
  .final-cta .container { display: grid; grid-template-columns: 1fr 1.2fr; gap: 24px 48px; align-items: center; }
  .final-cta .button--large { grid-column: 2; }
  .compact-products { margin: 0; }
  .about-strip .container { grid-template-columns: 1fr 1fr; gap: 60px; }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
  .split-feature > .container, .split-feature.container { grid-template-columns: 1fr 1fr; gap: 60px; }
  .guide-summary { gap: 18px; }
  .guide-summary div { min-height: 174px; }
  .tip-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .about-hero { padding-top: 70px; }
  .about-hero .container { grid-template-columns: .8fr 1.2fr; align-items: center; }
  .about-values { grid-template-columns: repeat(3, 1fr); }
  .column-grid { grid-template-columns: repeat(2, 1fr); }
  .article__visual { margin-top: 40px; }
  .article-size-guide { padding: 30px; }
  .article-size-guide__items { grid-template-columns: repeat(3, 1fr); }
  .article-size-guide__items a { grid-template-columns: 1fr; min-height: 142px; align-content: center; text-align: center; }
  .article-size-guide__items b, .article-size-guide__items span, .article-size-guide__items small, .article-size-guide__items i { grid-column: auto; grid-row: auto; }
  .article-size-guide__items b { font-size: 1.75rem; }
  .article-size-guide__items i { margin-top: 4px; }
  .article-product { grid-template-columns: 220px 1fr; align-items: center; padding: 24px; }
  .product-detail { padding: 48px 0 88px; }
  .product-detail__grid { grid-template-columns: 1.08fr .92fr; gap: 64px; align-items: start; }
  .product-detail__content { position: sticky; top: 110px; }
  .footer-grid { grid-template-columns: 1.3fr 1fr; align-items: start; }
  .mobile-buy { display: none; }
  .site-footer { padding-bottom: 46px; }
}

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