:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #fff;
  --text: #171a1f;
  --muted: #667085;
  --border: #e4e7ec;
  --primary: #2563eb;
  --primary-soft: #eff6ff;
  --positive: #15725a;
  --positive-soft: #eefbf5;
  --concern: #9a6700;
  --concern-soft: #fff8e6;
  --danger: #b42318;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(16, 24, 40, .06);
  --content: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif; line-height: 1.7; }
a { color: var(--primary); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: 2px; }
img { display: block; max-width: 100%; }
button, input, select { font: inherit; }
button, .button { min-height: 44px; }
:focus-visible { outline: 3px solid rgba(37, 99, 235, .4); outline-offset: 3px; }
.skip-link { position: absolute; top: -80px; left: 16px; z-index: 100; padding: 10px 14px; background: var(--text); color: #fff; border-radius: 8px; }
.skip-link:focus { top: 16px; }
.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; }
.site-header__inner, .container { width: min(calc(100% - 32px), var(--content)); margin-inline: auto; }
.site-header__inner { min-height: 72px; display: flex; gap: 24px; align-items: center; }
.logo { color: var(--text); text-decoration: none; font-size: 1.25rem; font-weight: 800; white-space: nowrap; }
.site-search { flex: 1; display: flex; gap: 8px; }
.site-search input { width: 100%; min-width: 0; border: 1px solid var(--border); border-radius: 9px; padding: 10px 12px; background: #fff; }
.site-search button, .button { border: 0; background: var(--primary); color: #fff; border-radius: 9px; padding: 9px 16px; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.site-search button { white-space: nowrap; min-width: 64px; }
.site-nav { display: flex; gap: 18px; align-items: center; }
.site-nav a { color: var(--text); text-decoration: none; font-weight: 650; }
main { min-height: 70vh; }
.hero { padding: 64px 0 40px; }
.hero__content { max-width: 780px; }
.eyebrow { margin: 0 0 6px; color: var(--primary); font-size: .875rem; font-weight: 750; }
h1, h2, h3 { line-height: 1.3; margin-top: 0; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: 16px; letter-spacing: -.03em; }
h2 { font-size: 1.5rem; margin-bottom: 18px; }
h3 { font-size: 1.08rem; margin-bottom: 8px; }
.lead { font-size: 1.08rem; color: #344054; max-width: 720px; }
.section { padding: 36px 0; }
.section__header { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section__header p { margin: 0; color: var(--muted); }
.category-list { display: flex; flex-wrap: wrap; gap: 10px; }
.category-chip { display: inline-flex; gap: 8px; align-items: center; padding: 9px 13px; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; color: var(--text); text-decoration: none; }
.category-chip span { color: var(--muted); font-size: .85rem; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-card { min-width: 0; overflow: hidden; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.product-card__image { aspect-ratio: 4 / 3; display: grid; place-items: center; background: #f2f4f7; overflow: hidden; }
.product-card__image img { width: 100%; height: 100%; object-fit: contain; }
.product-placeholder { color: var(--muted); font-size: .875rem; }
.product-card__body { padding: 18px; }
.product-card h3 a { color: var(--text); text-decoration: none; }
.product-card__summary { color: #475467; min-height: 3.4em; }
.product-card__meta { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.product-card__meta span, .meta { color: var(--muted); font-size: .875rem; }
.status-badge { display: inline-flex; align-items: center; min-height: 28px; padding: 3px 9px; border-radius: 999px; background: #fef3f2; color: var(--danger); border: 1px solid #fecdca; font-size: .8rem; font-weight: 700; }
.empty-state, .error-state, .loading-state { grid-column: 1 / -1; padding: 32px; border: 1px dashed #cfd4dc; border-radius: var(--radius); background: rgba(255,255,255,.55); text-align: center; color: var(--muted); }
.empty-state h2, .empty-state h3, .error-state h2 { color: var(--text); }
.empty-state--compact { padding: 16px 20px; text-align: left; }
.loading-state { padding: 20px; }
.filter-panel { display: grid; grid-template-columns: repeat(3, minmax(180px, 1fr)); gap: 12px; padding: 18px; margin-bottom: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.field { display: grid; gap: 6px; min-width: 0; }
.field--query { grid-column: span 2; }
.field label { font-size: .875rem; font-weight: 700; }
.field input, .field select { width: 100%; min-height: 44px; border: 1px solid var(--border); border-radius: 9px; padding: 9px 11px; background: #fff; }
.field select:disabled { background: #f2f4f7; color: var(--muted); cursor: not-allowed; }
.result-line { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.prose { max-width: 760px; padding: 48px 0 72px; }
.prose h1 { font-size: clamp(2rem,4vw,2.6rem); }
.prose h2 { margin-top: 36px; }
.notice { padding: 16px 18px; background: var(--primary-soft); border: 1px solid #bfdbfe; border-radius: 10px; }
.comparison-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.comparison-card { padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.comparison-card h3 a { color: var(--text); text-decoration: none; }
.site-footer { margin-top: 48px; border-top: 1px solid var(--border); background: #fff; }
.site-footer__inner { width: min(calc(100% - 32px), var(--content)); margin-inline: auto; padding: 28px 0; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px 20px; }
.footer-links a { color: #475467; }
.review-tag { display: inline-flex; align-items: center; min-height: 28px; padding: 3px 9px; border: 1px solid var(--border); border-radius: 999px; margin-right: 6px; font-size: .8rem; font-weight: 700; background: #f9fafb; }
.review-tag--official_pr { color: #6941c6; background: #f4f3ff; border-color: #d9d6fe; }
.review-tag--product_provided { color: #175cd3; background: #eff8ff; border-color: #b2ddff; }
.review-tag--self_purchased { color: #027a48; background: #ecfdf3; border-color: #abefc6; }
.metric-card, .disagreement-card { padding: 18px; border: 1px solid var(--border); background: #fff; border-radius: var(--radius); }
.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; color: var(--muted); font-size: .9rem; }
.breadcrumbs a { color: #475467; }
.section--compact { padding-top: 0; }
.product-card__price, .price-summary { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: baseline; margin-top: 12px; }
.product-hero { display: grid; grid-template-columns: minmax(260px, .85fr) minmax(0, 1.4fr); gap: 32px; align-items: start; }
.product-hero__image, .comparison-product__image { min-height: 260px; display: grid; place-items: center; overflow: hidden; background: #f2f4f7; border: 1px solid var(--border); border-radius: var(--radius); }
.product-hero__image img, .comparison-product__image img { width: 100%; height: 100%; object-fit: contain; }
.detail-list, .spec-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; margin: 22px 0 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--border); }
.detail-list > div, .spec-grid > div { min-width: 0; padding: 12px 14px; background: var(--surface); }
.detail-list dt, .spec-grid dt { color: var(--muted); font-size: .82rem; font-weight: 700; }
.detail-list dd, .spec-grid dd { margin: 3px 0 0; overflow-wrap: anywhere; }
.insight-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.insight-list .metric-card p:last-child { margin-bottom: 0; }
.video-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.video-card { min-width: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.video-card > img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #f2f4f7; }
.video-card__body { display: grid; gap: 8px; padding: 16px; }
.video-card__body p { margin: 0; }
.review-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.review-tags .review-tag { margin-right: 0; }
.price-list, .source-list { display: grid; gap: 12px; padding: 0; list-style: none; }
.price-list li, .source-list li { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; padding: 14px 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.source-list .meta { margin-left: auto; }
.compare-ab-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.comparison-product, .comparison-difference, .compare-ab-grid > div { min-width: 0; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.comparison-product h2 { margin-top: 16px; }
.comparison-differences { display: grid; gap: 14px; }
.comparison-difference > .compare-ab-grid > div { background: #f9fafb; }
@media (max-width: 1023px) { .product-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } .comparison-grid { grid-template-columns: 1fr; } .filter-panel { grid-template-columns: repeat(2, minmax(0,1fr)); } .site-header__inner { flex-wrap: wrap; padding: 12px 0; } .site-search { order: 3; flex-basis: 100%; } }
@media (max-width: 767px) { .site-header { position: static; } .site-header__inner, .container, .site-footer__inner { width: min(calc(100% - 24px), var(--content)); } .site-nav { gap: 12px; font-size: .92rem; } .hero { padding-top: 42px; } .section { padding: 28px 0; } .section__header { display: block; } .product-grid, .split-grid, .filter-panel, .product-hero, .detail-list, .spec-grid, .insight-list, .video-grid, .compare-ab-grid { grid-template-columns: 1fr; } .field--query { grid-column: auto; } .product-card__summary { min-height: 0; } .product-hero__image, .comparison-product__image { min-height: 220px; } .source-list .meta { width: 100%; margin-left: 0; } .site-footer__inner { display: block; } .footer-links { margin-top: 16px; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }