/* Product pages: one reading path, real packaging, original resources on demand. */
.product-hub-page, .product-detail-page { background: #f5f8f7; }
.pack-shot { position: relative; display: block; flex-shrink: 0; width: 100%; aspect-ratio: var(--pack-ratio); overflow: hidden; background: #fff; }
.pack-shot img { position: absolute; width: var(--pack-width); max-width: none; height: auto; left: var(--pack-left); top: var(--pack-top); }
.product-hub-page .page-main { padding-top: 24px; }
.product-hub-page .breadcrumb { margin-bottom: 0; }
.product-hub-page .page-head { max-width: none; margin: 28px 0 40px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.product-hub-page .page-head h1 { font-size: clamp(32px, 4vw, 48px); }
.product-hub-page .page-head .meta { line-height: 1.9; }
.product-hub-page #portfolio-title { font-size: 24px; }
.product-hub-page section[aria-labelledby="portfolio-title"] > .section-title { display: flex; align-items: center; justify-content: space-between; max-width: none; margin-bottom: 22px; gap: 16px; }
.product-hub-page .product-matrix { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.product-hub-page .product-card, .product-hub-page .product-card:nth-child(n) { grid-column: auto; display: flex; flex-direction: column; min-height: 0; border: 1px solid #dce5e5; border-radius: 10px; transition: box-shadow .2s, border-color .2s; }
.product-hub-page .product-card:hover { border-color: #9db8c1; box-shadow: 0 12px 30px #082b4410; }
.product-hub-page .product-card::before { height: 3px; }
.product-hub-page .product-card__visual { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px; padding: 32px 28px 18px; height: 250px; background: #fff; border-bottom: 1px solid #edf1f1; }
.product-hub-page .pack-shot { width: 100%; max-width: 290px; margin-block: auto; }
.product-hub-page .pack-shot img { width: var(--pack-width); height: auto; object-fit: initial; transform: none; }
.product-source { color: var(--muted); font-size: 12px; letter-spacing: .04em; }
.product-hub-page .product-card__body { display: flex; flex: 1; flex-direction: column; padding: 24px; }
.product-hub-page .product-card__body .eyebrow { font-size: 11px; letter-spacing: .05em; margin-bottom: 8px; }
.product-hub-page .product-card__body h3 { font-family: "Microsoft YaHei", sans-serif; font-size: 25px; }
.product-hub-page .product-card__body p:not(.eyebrow) { font-size: 14px; line-height: 1.9; margin-bottom: 20px; }
.product-hub-page .product-card__body .text-link { margin-top: auto; padding-top: 14px; border-top: 1px solid #edf1f1; font-size: 14px; }
.product-hub-page .section { padding: 56px 0; }
.product-hero-band { background: var(--ocean-950); color: white; }
.product-hero-band .breadcrumb { margin: 0; padding: 22px 0 0; color: #91a8b4; font-size: 12px; }
.product-hero-band .breadcrumb a { color: #b7cbd3; }
.product-detail-page .product-detail-hero { grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; padding: 36px 0 52px; overflow: visible; }
.product-detail-page .product-detail-copy { padding: 0; }
.product-detail-page .product-detail-copy h1 { font-size: clamp(34px,4.2vw,54px); margin: 4px 0 18px; line-height: 1.2; }
.product-detail-page .product-detail-copy .eyebrow { font-size: 12px; letter-spacing: .12em; }
.product-detail-page .product-detail-intro { font-size: 15px; line-height: 1.5; letter-spacing: .05em; margin-bottom: 14px; }
.product-detail-page .product-detail-copy .lead { font-size: 16px; line-height: 1.9; max-width: 520px; }
.product-tags { font-size: 12px; color: #9ac4ce; margin-top: 20px; letter-spacing: .06em; }
.product-detail-page .hero-actions { margin-top: 28px; gap: 12px; }
.product-detail-page .hero-actions .btn { padding: 12px 22px; font-size: 14px; }
.product-showcase { min-width: 0; margin: 0; padding: 24px 30px; background: #fff; border-radius: 12px; color: var(--ink); min-height: 320px; display: flex; flex-direction: column; justify-content: space-between; gap: 30px; }
.showcase-label { display: flex; justify-content: space-between; font-size: 11px; letter-spacing: .1em; color: #78909c; }
.product-showcase .pack-shot { margin-block: auto; }
.product-showcase figcaption { display: flex; flex-direction: column; gap: 4px; padding-top: 14px; border-top: 1px solid #e7eded; font-size: 13px; }
.product-showcase figcaption span { font-size: 11px; color: var(--muted); }
.product-local-nav { background: #fff; border-bottom: 1px solid var(--line); }
.product-local-nav .container { display: flex; gap: 40px; }
.product-local-nav a { display: block; padding: 17px 0; font-size: 14px; color: var(--ink); }
.product-local-nav a:hover { color: var(--ocean-600); }
.product-detail-page .page-main { padding-top: 0; }
.product-detail-page .section { padding: 46px 0; scroll-margin-top: 90px; }
.product-detail-page .section-title { max-width: 820px; margin-bottom: 24px; }
.product-detail-page .section-title h2 { font-size: clamp(26px,3vw,34px); }
.product-detail-page .section-title p { font-size: 14px; }
.product-detail-page .ingredient { background: white; padding: 22px; border-left: 3px solid #7ca9b7; }
.product-detail-page .ingredient p { font-size: 14px; }
.product-detail-page .section.alt { padding: 32px; border: 1px solid #e0e8e8; border-radius: 10px; }
.product-detail-page .prose { max-width: none; font-size: 14px; }
.product-detail-page .prose h2 { font-family: "Microsoft YaHei",sans-serif; font-size: 23px; margin-bottom: 16px; }
.product-detail-page .usage-note { font-size: 12px; margin-top: 24px; }
.product-detail-page .product-resources { border-top: 1px solid var(--line); }
.resource-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.resource-grid .brochure-section { min-width: 0; display: flex; flex-direction: column; }
.resource-grid .brochure-section h3 { font-size: 14px; order: 2; margin: 12px 0 0; }
.resource-grid .brochure-panel { border: 1px solid #dce5e5; border-radius: 8px; padding: 16px 16px 0; }
.resource-grid .brochure-panel img { height: auto; width: 100%; margin-inline: auto; aspect-ratio: var(--panel-ratio, 1754 / 3723); object-fit: cover; object-position: var(--panel-position) center; }
.brochure-download { margin: 0 0 24px; font-size: 18px; }
.resource-grid .brochure-zoom-hint { margin: 16px -16px 0; background: #e9f1f2; color: var(--ocean-800); font-size: 12px; text-align: center; }
.product-detail-page .cta-band { margin-top: 12px; }
@media(max-width: 1000px) {
 .product-detail-page .product-detail-hero { gap: 30px; }
 .product-hub-page .product-matrix { grid-template-columns: repeat(2,minmax(0,1fr)); }
 .product-showcase { padding: 22px; }
}
@media(max-width: 700px) {
 .product-detail-page .product-detail-hero { grid-template-columns: 1fr; padding: 28px 0; gap: 28px; }
 .product-detail-page .product-detail-copy h1 { font-size: 36px; }
 .product-showcase { min-height: 260px; gap: 24px; }
 .product-showcase .pack-shot { max-width: 400px; margin-inline: auto; }
 .product-local-nav .container { justify-content: space-between; gap: 10px; }
 .product-local-nav a { font-size: 12px; }
 .product-detail-page .section { padding: 32px 0; }
 .product-detail-page .section.alt { padding: 24px; }
 .resource-grid { grid-template-columns: 1fr; gap: 24px; }
 .resource-grid .brochure-panel img { height: auto; }
 .product-hub-page .product-matrix { grid-template-columns: 1fr; gap: 20px; }
 .product-hub-page .product-card { margin-bottom: 0; }
 .product-hub-page .page-head { margin: 24px 0 28px; }
 .product-hub-page section[aria-labelledby="portfolio-title"] > .section-title { align-items: baseline; }
 .product-hub-page section[aria-labelledby="portfolio-title"] > .section-title .text-link { font-size: 12px; }
}
@media(prefers-reduced-motion: reduce) {
 .product-hub-page .product-card { transition: none; }
}

/* Comfortable reading sizes across the portfolio and product details. */
.product-hub-page .page-head .meta,
.product-hub-page .section-title p,
.product-hub-page .product-card__body p:not(.eyebrow),
.product-hub-page .product-card__body .text-link,
.product-hub-page table.params,
.product-detail-page .product-detail-intro,
.product-detail-page .product-detail-copy .lead,
.product-detail-page .section-title p,
.product-detail-page .ingredient p,
.product-detail-page .prose { font-size: 18px; line-height: 1.85; }
.product-hub-page .product-source,
.product-hub-page .product-card__body .eyebrow,
.product-detail-page .product-detail-copy .eyebrow,
.product-detail-page .product-tags { font-size: 15px; }
.product-hub-page #portfolio-title { font-size: 30px; }
.product-detail-page .ingredient b { font-size: 21px; }
.product-detail-page .prose h2 { font-size: 28px; }
.product-detail-page .section-title { max-width: 1040px; }
.product-detail-page .section-title h2 { font-size: clamp(30px, 3vw, 38px); }
.product-detail-page .usage-note,
.product-hub-page .usage-note { font-size: 15px; line-height: 1.85; }
.product-detail-page .hero-actions .btn,
.product-detail-page .product-showcase figcaption,
.product-detail-page .resource-grid .brochure-section h3,
.product-detail-page .resource-grid .brochure-zoom-hint { font-size: 16px; }
.product-local-nav .container { flex-wrap: wrap; column-gap: 32px; }
.product-local-nav a { font-size: 17px; }
.purchase-reasons { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.purchase-reasons li { display: flex; align-items: flex-start; gap: 20px; padding: 26px; background: #fff; border: 1px solid #dce5e5; border-radius: 10px; }
.purchase-reason-number { flex: 0 0 48px; color: #37758a; font-size: 30px; font-weight: 700; line-height: 1.4; font-variant-numeric: tabular-nums; }
.purchase-reasons h3 { margin: 0 0 8px; color: var(--ocean-950); font: 700 22px/1.5 "Microsoft YaHei", sans-serif; }
.purchase-reasons p { margin: 0; color: var(--muted); font-size: 18px; line-height: 1.85; }
@media(max-width: 700px) {
 .product-local-nav .container { justify-content: flex-start; column-gap: 22px; }
 .product-local-nav a { font-size: 16px; padding: 12px 0; }
 .purchase-reasons { grid-template-columns: 1fr; gap: 14px; }
 .purchase-reasons li { padding: 22px 18px; gap: 12px; }
 .purchase-reason-number { flex-basis: 40px; font-size: 26px; }
 .product-hub-page section[aria-labelledby="portfolio-title"] > .section-title { flex-wrap: wrap; }
 .product-hub-page section[aria-labelledby="portfolio-title"] > .section-title .text-link { font-size: 16px; }
}