/* One content source, separate desktop, tablet and handheld compositions. */
html { scroll-padding-top: 7rem; scroll-padding-bottom: 6rem; }
body { line-height: 1.8; }
button, a, summary { touch-action: manipulation; }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid #b77820;
  outline-offset: 5px;
}
.mobile-menu, .mobile-shortcuts { display: none; }
.nav-shell, .section-shell, .hero-wrap { min-width: 0; }
.nav-shell { gap: 1.5rem; }
.desktop-nav { gap: clamp(.65rem, 1.3vw, 1.4rem); flex-wrap: wrap; justify-content: flex-end; }
.desktop-nav a { min-height: 44px; display: inline-flex; align-items: center; }
.brand small { letter-spacing: .04em; }
.hero { min-height: 0; }
.hero-wrap { padding-block: 3.5rem 4.5rem; gap: 3rem; }
h1 { font-size: clamp(2.6rem, 3.8vw, 3.65rem); line-height: 1.35; word-break: normal; text-wrap: pretty; }
h1 em > span { display: block; }
.hero-copy { margin-block: 1.2rem; font-size: 1.0625rem; line-height: 1.9; }
.hero-academy { padding: .85rem 1rem; margin-bottom: 1.25rem; }
.hero-academy > span { font-size: .875rem; letter-spacing: .04em; }
.hero-academy strong { font-size: 1.2rem; }
.hero-academy strong br { display: none; }
.hero-academy small { font-size: .875rem; }
.hero-proof { margin-top: 1.5rem; gap: .8rem 1.4rem; }
.hero-proof dt, .hero-promise { font-size: .875rem; }
.hero-actions .button { font-size: 1rem; }
/* Keep the bottle on a product strip, rather than floating over the garden. */
.hero-gallery {
  min-height: 0; display: grid; grid-template-columns: 94px minmax(0, 1fr);
  align-content: start; background: var(--paper); border: 1px solid var(--line);
  border-radius: 24px; box-shadow: var(--shadow); overflow: hidden;
}
.hero-photo { position: relative; inset: auto; grid-column: 1 / -1; aspect-ratio: 1.08; border: 0; border-radius: 0; box-shadow: none; }
.hero-photo img { object-position: 53% center; }
.hero-photo figcaption { max-width: calc(100% - 2rem); font-size: .875rem; white-space: normal; }
.hero-product { position: relative; inset: auto; width: auto; padding: 1rem .8rem 1rem 1.2rem; align-items: center; }
.hero-product::after { display: none; }
.hero-bottle { width: auto; height: 102px; max-height: none; filter: none; }
.hero-product-note { position: static; width: auto; padding: 1.1rem 1.1rem 1.1rem .5rem; border: 0; border-radius: 0; background: none; box-shadow: none; backdrop-filter: none; }
.hero-product-note span { font-size: .875rem; margin-bottom: .2rem; }
.hero-product-note strong { font-size: 1.4rem; }
.hero-product-note p { font-size: 1rem; margin-top: .35rem; }
.hero-seal { display: none; }
.academy-section, .purchase-confidence, .brand-origin, .elder-guide, .diagnosis,
.garden-story, .products, .product-manual, .care-path, .plant-guide,
.evidence-section, .faq-section, .contact-section { padding-block: clamp(4rem, 6vw, 6rem); }
.academy-heading h2, .purchase-intro h2, .elder-guide-heading h2, .diagnosis-intro h2,
.section-heading h2, .manual-heading h2, .story-copy h2, .care-heading h2,
.guide-title h2, .faq-intro h2, .contact-grid h2 { font-size: clamp(2rem, 3.2vw, 3.25rem); line-height: 1.4; }
.academy-shell, .purchase-shell, .origin-shell, .story-grid, .contact-grid { gap: 3rem; }
.academy-shell { grid-template-columns: minmax(0, 1fr) minmax(0, .95fr); }
.purchase-shell { grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); }
.origin-shell { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); }
.story-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.academy-panel small, .contact-grid small { font-size: .875rem; color: rgba(255,255,255,.82); }
.academy-panel { min-height: 400px; }
.section-heading { gap: 2rem; }
.button-green { background: var(--forest); color: #fff; margin-top: 1.25rem; }
.fit-check { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto; }
.product-showcase { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.product-tile-main { grid-column: 1 / -1; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); }
.product-tile-editorial, .product-tile-portrait, .product-tile-landscape, .purple-art, .green-art { grid-column: auto; }
.product-tile-editorial { min-height: 450px; }
.purple-art, .green-art { display: block; }
.product-info h3, .product-tile-editorial h3 { font-size: clamp(1.75rem, 2.8vw, 2.5rem); line-height: 1.4; }
.blue-art { min-height: 390px; background: #e6edf0; }
.blue-art::before, .blue-art::after { display: none; }
.blue-art img { height: 360px; align-self: center; filter: none; }
.earth-art { min-height: 290px; height: 290px; }
.product-tile-landscape > img, .green-art > img { height: 300px; }
.product-art-note { font-size: .875rem; }
.usage-table { min-width: 0; table-layout: fixed; }
.usage-table th, .usage-table td { padding: 1rem; overflow-wrap: anywhere; }
.usage-table thead th { font-size: 1rem; }
.usage-table td { font-size: 1rem; }
.usage-table th:first-child { width: 18%; }
.usage-table th:nth-child(3) { width: 25%; }
.usage-table tbody th span, .formula-card dd, .source-note { font-size: 1rem; }
.document-card span { font-size: 1rem; }
.footer-grid p, .footer-grid span { color: rgba(255,255,255,.8); }
.footer-grid a { min-height: 44px; display: inline-flex; align-items: center; }
.image-dialog { max-height: 90dvh; }
.image-dialog img { max-height: calc(90dvh - 5rem); }
.dialog-close { min-height: 44px; }

@media (min-width: 1200px) and (max-width: 1390px) {
  .brand small { display: none; }
  .brand-logo-frame { width: 174px; height: 48px; }
  .desktop-nav { font-size: .9375rem; }
}

/* Tablet has an accessible menu, not a hidden navigation bar. */
@media (max-width: 1199px) {
  .site-header { position: sticky; top: 0; }
  .nav-shell { min-height: 76px; }
  .desktop-nav { display: none; }
  .mobile-menu { display: block; }
  .mobile-menu summary { display: flex; align-items: center; gap: .75rem; min-height: 48px; padding: .5rem .9rem; list-style: none; border: 1px solid var(--line); border-radius: 9px; font-weight: 700; cursor: pointer; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary span { font-size: 1.2rem; }
  .mobile-menu[open] summary { color: #fff; background: var(--forest); }
  .mobile-menu nav { position: absolute; left: 0; right: 0; top: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem; padding: 1rem 1.5rem; max-height: calc(100dvh - 10rem); overflow: auto; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 15px 25px #17342a18; }
  .mobile-menu nav a { display: flex; align-items: center; min-height: 48px; padding: .65rem .8rem; border-radius: 7px; font-size: 1rem; }
  .mobile-menu nav a:hover { background: var(--forest-soft); }
  .hero-wrap { grid-template-columns: minmax(0, 1fr) minmax(0, .85fr); gap: 2rem; }
  h1 { font-size: clamp(2.25rem, 3.8vw, 3rem); }
  .hero-photo { aspect-ratio: .85; }
  .hero-content { max-width: none; }
  .academy-shell, .purchase-shell, .origin-shell, .story-grid { grid-template-columns: minmax(0, 1fr); }
  .academy-panel { min-height: 340px; border-radius: 24px; }
  .academy-seal { display: none; }
  .origin-heading { min-height: 340px; border-radius: 24px; }
  .origin-heading h2 { font-size: 3rem; }
  .origin-belief { grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); }
  .purchase-intro, .diagnosis-intro { position: static; }
  .diagnosis { grid-template-columns: minmax(0, 1fr); }
  .manual-heading { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .manual-details { grid-template-columns: minmax(0, 1fr); }
  .fit-check { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .fit-check a { grid-column: 1 / -1; flex-direction: row; gap: 1rem; align-items: center; }
  .root-reassurance-heading { grid-template-columns: minmax(0, 1fr); }
  .root-reassurance-grid { grid-template-columns: minmax(0, 1fr); }
  .root-reassurance-grid article { min-height: 0; gap: .8rem; }
  .faq-section, .contact-grid { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .document-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-grid > div:last-child { grid-column: 1 / -1; }
}

/* Handheld: reading-sized type, shorter panels and thumb-reachable navigation. */
@media (max-width: 767px) {
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom)); font-size: 1.0625rem; }
  html { scroll-padding-top: 5.5rem; }
  .section-shell, .nav-shell, .hero-wrap { width: calc(100% - 36px); }
  .nav-shell { min-height: 68px; gap: .5rem; }
  .brand-logo-frame { width: 150px; height: 42px; }
  .brand small { display: none; }
  .mobile-menu summary { font-size: .9375rem; gap: .45rem; padding-inline: .65rem; }
  .mobile-menu nav { padding: .65rem 1rem; }
  .mobile-shortcuts { position: fixed; z-index: 60; bottom: 0; left: 0; right: 0; display: grid; grid-template-columns: 1fr 1fr 1fr 1.15fr; gap: .25rem; padding: .6rem max(.5rem, env(safe-area-inset-left)) calc(.6rem + env(safe-area-inset-bottom)) max(.5rem, env(safe-area-inset-right)); border-top: 1px solid var(--line); background: var(--paper); box-shadow: 0 -5px 20px #17342a0d; }
  nav.mobile-shortcuts a { display: flex; align-items: center; justify-content: center; min-height: 48px; padding: .4rem .15rem; font-size: 1rem; }
  .mobile-shortcuts .shortcut-shop { background: var(--forest); color: #fff; border-radius: 10px; }
  .hero-wrap { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding-block: 1.65rem 2.5rem; }
  .eyebrow { display: flex; flex-wrap: wrap; gap: .2rem .6rem; font-size: .875rem; margin-bottom: .75rem; letter-spacing: 0; }
  .eyebrow span { display: inline; }
  h1 { font-size: clamp(1.85rem, 7.6vw, 2.6rem); line-height: 1.4; }
  .hero-copy { margin-block: 1rem; font-size: 1.0625rem; line-height: 1.85; }
  .hero-academy { border-radius: 0 10px 10px 0; padding: .7rem .85rem; margin-bottom: 1rem; box-shadow: none; }
  .hero-academy > span { display: none; }
  .hero-academy strong { font-size: 1rem; }
  .hero-academy small { font-size: .875rem; line-height: 1.6; }
  .hero-actions { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .6rem; }
  .hero-actions .button { padding: .75rem .65rem; border-radius: 10px; min-height: 52px; font-size: 1rem; }
  .hero-promise { gap: .4rem .7rem; margin-top: .85rem; font-size: .875rem; }
  .hero-proof { display: none; }
  .hero-gallery { border-radius: 16px; grid-template-columns: 74px minmax(0, 1fr); box-shadow: 0 10px 30px #17342a12; }
  .hero-photo { aspect-ratio: 1.4; }
  .hero-photo img { object-position: center; }
  .hero-photo figcaption { top: .75rem; right: .75rem; max-width: calc(100% - 1.5rem); font-size: .875rem; padding: .25rem .55rem; }
  .hero-product { padding: .75rem; }
  .hero-bottle { height: 84px; }
  .hero-product-note { padding: .85rem .85rem .85rem .25rem; }
  .hero-product-note strong { font-size: 1.25rem; }
  .hero-product-note p { line-height: 1.65; font-size: 1rem; }
  .academy-section, .purchase-confidence, .brand-origin, .elder-guide, .diagnosis,
  .garden-story, .products, .product-manual, .care-path, .plant-guide,
  .evidence-section, .faq-section, .contact-section { padding-block: 2.75rem; }
  .chapter { font-size: .875rem; margin-bottom: .65rem; letter-spacing: .025em; }
  .academy-heading h2, .purchase-intro h2, .elder-guide-heading h2, .diagnosis-intro h2,
  .section-heading h2, .manual-heading h2, .story-copy h2, .care-heading h2,
  .guide-title h2, .faq-intro h2, .contact-grid h2 { font-size: clamp(1.65rem, 6.5vw, 2.2rem); line-height: 1.45; }
  .academy-shell, .purchase-shell, .origin-shell, .story-grid, .diagnosis { gap: 1.6rem; }
  .academy-panel { min-height: 0; padding: 1.4rem; border-radius: 16px; }
  .academy-panel > p { margin: .5rem 0 1rem; font-size: 1.5rem; }
  .academy-metrics { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .academy-metrics div { display: block; padding: .75rem .35rem; border-top: 0; border-right: 1px solid #ffffff33; }
  .academy-metrics dt { font-size: 1.3rem; }
  .academy-metrics dd { font-size: .875rem; }
  .academy-panel small { margin-top: 1rem; }
  .purchase-checklist article { grid-template-columns: 40px minmax(0, 1fr); gap: .75rem; padding-block: 1.2rem; }
  .purchase-checklist article > span { width: 36px; height: 36px; }
  .purchase-checklist h3 { font-size: 1.3rem; }
  .purchase-checklist p { font-size: 1.0625rem; }
  .purchase-promise { grid-template-columns: minmax(0, 1fr); margin-top: 1.5rem; padding: 1rem; gap: .5rem; }
  .purchase-promise span { border-left: 0; border-top: 1px solid #ffffff33; padding: .6rem 0 0; font-size: 1rem; }
  .garden-ribbon div { font-size: .9375rem; letter-spacing: 0; }
  .origin-heading { min-height: 0; padding: 1.4rem; border-radius: 16px; }
  .origin-heading h2 { font-size: 2rem; }
  .origin-heading > p:last-child { margin-top: 1rem; }
  .origin-story article { grid-template-columns: 36px minmax(0, 1fr); gap: .7rem; }
  .origin-story article > span { width: 34px; height: 34px; }
  .origin-story h3 { font-size: 1.3rem; }
  .origin-story p { font-size: 1.0625rem; }
  .origin-belief { grid-template-columns: minmax(0, 1fr); padding: 1.2rem; border-radius: 14px; }
  .origin-belief strong { font-size: 1.5rem; }
  .origin-belief p { grid-column: auto; font-size: 1rem; }
  .elder-guide-heading, .section-heading, .guide-title, .care-heading, .manual-heading { margin-bottom: 1.5rem; }
  .elder-guide-grid { grid-template-columns: minmax(0, 1fr); }
  .elder-guide-grid article { min-height: 0; display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: .4rem .75rem; padding: 1.2rem; border-radius: 14px; }
  .elder-guide-grid article > span { width: 36px; height: 36px; }
  .elder-guide-grid h3 { margin: 0; font-size: 1.4rem; align-self: center; }
  .elder-guide-grid p { grid-column: 1 / -1; margin-top: .5rem; font-size: 1.0625rem; }
  .diagnosis-grid { grid-template-columns: minmax(0, 1fr); gap: .75rem; }
  .diagnosis-card { min-height: 0; border-radius: 14px; padding: 1.2rem; }
  .diagnosis-card > span { display: none; }
  .diagnosis-card h3 { font-size: 1.5rem; }
  .diagnosis-card p, .diagnosis-card strong { font-size: 1rem; }
  .story-image { width: 100%; min-height: 0; padding: 0; }
  .story-image::before, .story-image > span { display: none; }
  .story-image img { height: auto; aspect-ratio: 1.15; border-radius: 16px; }
  .section-heading { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .fit-check { grid-template-columns: minmax(0, 1fr); margin: 0 0 1.25rem; }
  .fit-check strong { font-size: 1rem; }
  .fit-check span, .fit-check a small { font-size: .875rem; }
  .product-showcase { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .product-tile { margin: 0; border-radius: 16px; }
  .product-tile-main { grid-column: auto; display: block; }
  .product-art { min-height: 0; height: 240px; }
  .blue-art img { height: 220px; max-width: 75%; padding: .5rem; }
  .product-art-note { left: .75rem; bottom: .75rem; }
  .product-info { padding: 1.25rem; }
  .product-info h3, .product-tile-editorial h3 { font-size: 1.6rem; }
  .product-info > p, .product-tile-editorial > div > p { font-size: .9375rem; }
  .product-info > span, .product-tile-editorial > div > span { font-size: 1.0625rem; }
  .product-info dl, .product-tile-editorial dl { margin-top: 1rem; }
  .product-info dl div, .product-tile-editorial dl div { grid-template-columns: 56px minmax(0, 1fr); }
  .product-info dt, .product-tile-editorial dt { font-size: 1rem; }
  .product-info .button { display: flex; width: 100%; border-radius: 10px; }
  .product-tile-editorial { min-height: 0; gap: 1.5rem; padding: 1.25rem; }
  .product-tile-landscape > img, .green-art > img { height: 230px; }
  .root-reassurance { padding: 1.3rem; border-radius: 16px; }
  .root-reassurance-heading h3 { font-size: 1.7rem; }
  .root-reassurance-grid { margin-top: 1.25rem; }
  .root-reassurance-grid article { padding: 1rem; }
  .usage-table-wrap { overflow: visible; border: 0; background: none; box-shadow: none; }
  .usage-table { display: block; }
  .usage-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
  .usage-table tbody { display: grid; gap: 1rem; }
  .usage-table tbody tr { display: block; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--cream); }
  .usage-table tbody th, .usage-table tbody td { display: block; width: 100%; padding: .9rem 1rem; border: 0; border-bottom: 1px solid var(--line); font-size: 1.0625rem; }
  .usage-table tbody tr:last-child > * { border-bottom: 1px solid var(--line); }
  .usage-table tbody tr > *:last-child { border-bottom: 0; }
  .usage-table tbody th { background: #e8decb; }
  .usage-table tbody th:first-child { width: 100%; }
  .usage-table tbody td::before { display: block; margin-bottom: .25rem; color: var(--terracotta); font-weight: 800; font-size: .9375rem; }
  .usage-table tbody td:nth-child(2)::before { content: "什么时候用"; }
  .usage-table tbody td:nth-child(3)::before { content: "怎么用"; }
  .usage-table tbody td:nth-child(4)::before { content: "多久一次"; }
  .usage-table tbody td:nth-child(5)::before { content: "要注意什么"; }
  .formula-card, .use-notes { padding: 1.25rem; border-radius: 14px; }
  .formula-card dl div { grid-template-columns: minmax(0, 1fr); gap: .3rem; }
  .care-steps { grid-template-columns: minmax(0, 1fr); }
  .care-steps li { min-height: 0; padding: 1.25rem; gap: .25rem; border-left: 1px solid #ffffff33; border-bottom: 1px solid #ffffff33; }
  .care-steps h3 { font-size: 1.4rem; }
  .plant-notes { grid-template-columns: minmax(0, 1fr); }
  .plant-notes article { min-height: 0; padding: 1.25rem; }
  .plant-notes h3 { margin: .5rem 0 0; font-size: 1.75rem; }
  .plant-notes article > span { font-size: .875rem; }
  .plant-notes p { font-size: 1.0625rem; }
  .evidence-summary { grid-template-columns: minmax(0, 1fr); margin-bottom: 1.5rem; }
  .document-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
  .document-card img { height: 170px; }
  .document-card span { padding: .75rem; font-size: .9375rem; }
  .faq-list summary { padding-block: 1.1rem; font-size: 1.0625rem; }
  .faq-list details p { margin-right: .5rem; font-size: 1.0625rem; }
  .contact-card { padding: 1.3rem; border-radius: 16px; }
  .contact-card h3 { font-size: 1.8rem; margin: .7rem 0; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .footer-grid > div:last-child { grid-column: auto; }
  .footer-grid > div:nth-child(2) { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .35rem 1rem; }
  .footer-grid p, .footer-grid span { font-size: 1rem; }
  .site-footer { padding-block: 2rem; }
}

@media (max-width: 359px) {
  .section-shell, .nav-shell, .hero-wrap { width: calc(100% - 24px); }
  .brand-logo-frame { width: 128px; height: 38px; }
  .mobile-menu summary { padding-inline: .5rem; }
  .hero-actions { grid-template-columns: minmax(0, 1fr); }
}

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