/* 手机与平板使用独立布局，共享内容及品牌样式。 */
@media (max-width: 800px) {
  :root { --gutter: 24px; }
  html { scroll-padding-top: 90px; }
  body { font-size: 15px; }
  .site-header { position: sticky; top: 0; z-index: 20; height: 76px; min-height: 76px; gap: 14px; background: #fff; border-bottom: 1px solid var(--line); }
  .site-header .wordmark strong { font-size: 22px; }
  .site-header .wordmark small { font-size: 7px; letter-spacing: 3.5px; padding-top: 7px; }
  .language { margin-left: auto; min-width: 58px; min-height: 44px; padding: 0; gap: 7px; }
  .menu-toggle { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px; width: 44px; height: 44px; padding: 8px; background: none; flex-shrink: 0; }
  .menu-toggle span { width: 22px; height: 1px; background: var(--ink); transition: transform .2s; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-header nav { display: none; position: absolute; top: 100%; left: 0; right: 0; margin: 0; padding: 10px var(--gutter) 24px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 16px 25px #173f4b10; }
  .site-header nav.is-open { display: grid; gap: 0; }
  .site-header nav a { padding: 16px 0; min-height: 56px; border-bottom: 1px solid var(--line); font-size: 15px; }
  .site-header nav a::after { content: ''; float: right; width: 18px; height: 18px; margin-top: 4px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23173f4b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 18 18 6M6 6h12v12'/%3E%3C/svg%3E") center / contain no-repeat; }
  .hero-inner { display: flex; flex-direction: column; min-height: 0; }
  .hero-copy { padding: 34px 0 28px; }
  .hero .eyebrow { font-size: 8px; letter-spacing: 1.1px; gap: 9px; }
  .eyebrow-line { width: 16px; }
  h1 { font-size: clamp(40px, 11.8vw, 60px); line-height: 1.28; letter-spacing: .5px; margin-top: 22px; }
  .hero-english { font-size: 17px; margin-top: 14px; letter-spacing: -.4px; }
  .hero-description { font-size: 14px; line-height: 1.9; margin-top: 18px; }
  .hero-description br { display: none; }
  .hero-actions { gap: 20px; margin-top: 23px; flex-wrap: wrap; }
  .button { font-size: 14px; min-height: 52px; padding: 14px 18px; gap: 22px; }
  .text-link { font-size: 13px; min-height: 44px; gap: 16px; }
  .hero-origin { display: none; }
  .hero-stage { min-height: 370px; height: 370px; margin: 0 calc(-1 * var(--gutter)); }
  .stage-top { top: 19px; left: var(--gutter); font-size: 7px; letter-spacing: 1.5px; }
  .hero-pouch { height: 280px; max-width: 67%; width: auto; left: 43%; bottom: 38px; transform: translateX(-50%) rotate(-5deg); }
  .orbit { width: 290px; height: 290px; top: 47%; }
  .orbit-two { width: 370px; height: 370px; }
  .orbit-three { width: 450px; height: 450px; }
  .product-plinth { left: 8%; right: -12%; height: 65px; }
  .product-plinth::before { height: 62px; top: -31px; }
  .stage-volume { right: var(--gutter); bottom: 88px; top: auto; }
  .stage-volume strong { font-size: 25px; }
  .stage-volume > span { max-width: 4em; font-size: 12px; line-height: 1.6; letter-spacing: 0; }
  .stage-caption { left: var(--gutter); right: var(--gutter); bottom: 12px; font-size: 6px; letter-spacing: 1px; }
  .stage-caption > span { font-size: 6px; }
  .ingredient-strip { padding-top: 23px; padding-bottom: 25px; gap: 12px; }
  .ingredient-strip > div { padding-left: 12px; }
  .ingredient-strip > div:first-child { padding-left: 0; }
  .ingredient-strip span { font-size: 6px; letter-spacing: .2px; white-space: nowrap; }
  .ingredient-strip p { font-size: 12px; line-height: 1.8; letter-spacing: 0; margin-top: 7px; }
  .section { padding-top: 54px; padding-bottom: 54px; }
  .section-intro, .intro-copy, .product-layout, .factory-layout, .contact { display: grid; grid-template-columns: 1fr; gap: 25px; }
  .section-label > span { font-size: 9px; letter-spacing: 1.5px; }
  .section-label > p { font-size: 12px; margin-top: 6px; }
  .intro-copy { gap: 20px; }
  h2, .product-copy h2 { font-size: 34px; font-weight: 300; line-height: 1.45; letter-spacing: .3px; }
  .body-copy, .factory-copy .body-copy { font-size: 14px; line-height: 1.95; }
  .body-copy br { display: none; }
  .origin-photo { margin-top: 28px; }
  .origin-photo img { height: 270px; object-position: 58% center; }
  .origin-photo figcaption { display: grid; gap: 5px; margin-top: 14px; font-size: 12px; letter-spacing: .2px; }
  .origin-photo figcaption > span:first-child { font-size: 8px; letter-spacing: 1px; }
  .brand { padding-bottom: 28px; }
  .ingredient-grid { grid-template-columns: 1fr; margin-top: 30px; gap: 26px; }
  .ingredient { display: grid; grid-template-columns: 1fr 88px; column-gap: 10px; padding-top: 15px; }
  .ingredient-top { grid-column: 1 / -1; font-size: 9px; margin-bottom: 15px; }
  .ingredient-visual { grid-column: 2; grid-row: 2 / 4; height: auto; align-self: center; gap: 0; }
  .visual-note { display: none; }
  .milk-mark { font-size: 54px; letter-spacing: -4px; }
  .milk-mark > span { font-size: 26px; }
  .fibre-mark, .protein-mark { width: 88px; height: 80px; }
  .ingredient h3 { grid-column: 1; font-size: 20px; margin: 0 0 8px; }
  .ingredient > p { grid-column: 1; min-height: 0; font-size: 14px; line-height: 1.9; }
  .ingredient > p br { display: none; }
  .brand-bottom { font-size: 12px; letter-spacing: 0; margin-top: 28px; padding-top: 20px; }
  .brand-bottom span { margin: 0 7px; }
  .product-layout { gap: 28px; margin-top: 27px; }
  .ritual-photo img { height: auto; aspect-ratio: 1 / 1.04; object-position: center; }
  .ritual-photo figcaption { font-size: 8px; left: 18px; bottom: 18px; letter-spacing: 1.4px; }
  .product-copy .eyebrow { font-size: 8px; letter-spacing: 1.7px; }
  .product-copy h2 { margin-top: 16px; }
  .product-copy h3 { font-size: 20px; margin-top: 22px; }
  .product-english { font-size: 9px; letter-spacing: 1px; }
  .product-copy .body-copy { margin-top: 18px; }
  .nutrition-highlights { margin-top: 24px; padding: 15px 0; }
  .nutrition-highlights > div + div { padding-left: 12px; }
  .nutrition-highlights strong { font-size: 30px; }
  .nutrition-highlights small { font-size: 12px; margin-left: 3px; }
  .nutrition-highlights span { font-size: 12px; }
  .nutrition-note { font-size: 12px; line-height: 1.8; margin-top: 12px; }
  .product-actions { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 22px; }
  .product-actions .button { width: 100%; }
  .product-actions .text-link { justify-content: space-between; min-height: 48px; font-size: 14px; }
  .factory-layout { gap: 30px; margin-top: 28px; }
  .factory-photo > img { height: auto; aspect-ratio: 1.22; object-position: 58% center; }
  .factory-photo figcaption { font-size: 7px; letter-spacing: 1px; }
  .factory-copy { margin: 0; }
  .company .eyebrow { font-size: 12px; }
  .factory-copy h3 { font-size: 31px; margin-top: 8px; }
  .factory-legal { font-size: 9px; letter-spacing: .7px; }
  .factory-copy .body-copy { margin-top: 17px; }
  .factory-thumbnails { gap: 13px; margin-top: 23px; }
  .factory-thumbnails img { height: auto; aspect-ratio: 1.2; }
  .factory-thumbnails figcaption { font-size: 12px; letter-spacing: 0; }
  .company-bottom { flex-direction: column; align-items: stretch; gap: 10px; margin-top: 26px; padding-top: 18px; }
  .company-bottom > span { font-size: 8px; letter-spacing: 1px; }
  .company-bottom > span span { margin: 0 12px; }
  .company-bottom .text-link { font-size: 14px; justify-content: space-between; }
  .contact { gap: 32px; }
  .contact h2 { margin-top: 24px; }
  .contact-heading .body-copy { margin-top: 18px; }
  .contact-detail { padding-top: 0; }
  .contact-detail .eyebrow { font-size: 9px; }
  .email { font-size: clamp(24px, 7vw, 32px); gap: 12px; letter-spacing: -1px; padding: 12px 0 18px; }
  .email > span { font-size: 24px; }
  .address { grid-template-columns: 1fr; gap: 9px; margin-top: 22px; }
  .address > span { font-size: 12px; padding-top: 0; }
  .address p { font-size: 13px; line-height: 1.95; overflow-wrap: anywhere; }
  .copy-email { min-height: 44px; font-size: 13px; gap: 30px; margin-top: 17px; }
  .copy-status { display: block; font-size: 12px; margin: 8px 0 0; overflow-wrap: anywhere; }
  .copy-status:empty { display: none; }
  .site-footer { padding-top: 32px; padding-bottom: max(25px, env(safe-area-inset-bottom)); }
  .footer-top { flex-wrap: wrap; gap: 26px 12px; padding-bottom: 25px; }
  .footer-top .wordmark strong { font-size: 22px; }
  .footer-top .wordmark small { font-size: 7px; letter-spacing: 3.5px; }
  .footer-top > p { order: 3; width: 100%; font-size: 18px; line-height: 1.5; letter-spacing: -.4px; }
  .footer-top .text-link { font-size: 12px; gap: 12px; }
  .footer-bottom { display: flex; flex-direction: column; gap: 22px; padding-top: 18px; }
  .footer-bottom nav { order: -1; display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; font-size: 14px; }
  .footer-bottom nav a { display: flex; align-items: center; min-height: 46px; border-bottom: 1px solid var(--line); }
  .footer-bottom > span { font-size: 10px; }
  .footer-bottom > span:last-child { font-size: 8px; }
  dialog { width: calc(100% - 24px); max-height: calc(100dvh - 32px); padding: 48px 20px 24px; overscroll-behavior: contain; }
  .dialog-close { right: 7px; top: 5px; }
  dialog .eyebrow { font-size: 8px; letter-spacing: 1.1px; }
  dialog h2 { font-size: 26px; line-height: 1.4; margin-top: 12px; }
  .dialog-subtitle { font-size: 13px; }
  .dialog-facts { gap: 20px; }
  .dialog-facts h3 { font-size: 15px; }
  .dialog-facts p { font-size: 14px; line-height: 1.9; }
  table { font-size: 12px; }
  caption { font-size: 16px; }
  th, td { padding: 10px 5px; }
  dialog .button { width: 100%; }
  html[lang="en"] h1 { font-size: clamp(37px, 10.6vw, 56px); line-height: 1.15; letter-spacing: -1.5px; margin-top: 25px; }
  html[lang="en"] .hero-description { margin-top: 22px; }
  html[lang="en"] h2 { font-size: 34px; line-height: 1.25; }
  html[lang="en"] .ingredient > p { min-height: 0; }
  html[lang="en"] .hero-actions { gap: 14px; }
  html[lang="en"] .hero-actions .button { font-size: 13px; gap: 18px; }
  html[lang="en"] .hero-actions .text-link { font-size: 12px; gap: 10px; }
  html[lang="en"] .ingredient-strip p { font-size: 12px; line-height: 1.65; }
  html[lang="en"] .nutrition-highlights span { display: block; line-height: 1.7; }
  html[lang="en"] .stage-volume > span { font-size: 9px; max-width: 8em; }
}
@media (min-width: 560px) and (max-width: 800px) {
  :root { --gutter: 40px; }
  .hero-copy { padding-top: 44px; padding-bottom: 36px; }
  .hero-stage { height: 470px; }
  .hero-pouch { height: 390px; bottom: 42px; }
  .stage-volume { right: 12%; bottom: 110px; }
  .ingredient-strip p { font-size: 14px; }
  .origin-photo img { height: 360px; }
  .ingredient { grid-template-columns: 1fr 140px; }
  .ritual-photo img { aspect-ratio: 1.2; }
}
@media (max-width: 359px) {
  :root { --gutter: 20px; }
  .site-header { gap: 7px; }
  .site-header .wordmark strong { font-size: 20px; }
  .site-header .wordmark small { font-size: 6px; letter-spacing: 3px; }
  .language { min-width: 50px; gap: 5px; }
  .hero-actions { gap: 14px; }
  .hero-actions .button { padding-left: 13px; padding-right: 13px; gap: 14px; font-size: 13px; }
  .hero-actions .text-link { font-size: 12px; gap: 9px; }
  .hero-english { font-size: 15px; }
  .hero-stage { height: 350px; min-height: 350px; }
  .hero-pouch { height: 260px; left: 42%; }
  .stage-volume { right: 15px; }
  .ingredient { grid-template-columns: 1fr 65px; }
  .fibre-mark, .protein-mark { width: 65px; }
  .milk-mark { font-size: 44px; }
  .milk-mark > span { font-size: 22px; }
  .nutrition-highlights strong { font-size: 27px; }
  .nutrition-highlights > div + div { padding-left: 8px; }
  .nutrition-highlights span { letter-spacing: -.3px; }
  .footer-top > p { font-size: 16px; }
}