.language-menu { position: relative; margin-left: 12px; font-size: 12px; z-index: 10; }
.language-menu summary { cursor: pointer; list-style: none; min-height: 44px; min-width: 64px; display: flex; align-items: center; justify-content: center; gap: 10px; border: 1px solid var(--line); border-radius: 6px; padding: 0 12px; }
.language-menu summary::-webkit-details-marker { display: none; }
.language-menu summary:hover, .language-menu[open] summary { background: #22231e; }
.language-menu summary:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
.language-options { position: absolute; right: 0; top: calc(100% + 8px); min-width: 150px; padding: 6px; background: #191a17; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 12px 32px #0006; }
.site-header .language-options a { display: flex; width: 100%; min-height: 44px; padding: 12px; white-space: nowrap; text-decoration: none; border-radius: 4px; }
.language-options a:hover, .language-options a[aria-current] { background: #303027; color: var(--gold); }
.ja { --sans: "Manrope", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif; }
.zh-tw { --sans: "Manrope", "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif; }
:is(.ja,.zh-tw) h1, :is(.ja,.zh-tw) h2 { font-weight: 500; letter-spacing: -.035em; line-height: 1.45; }
:is(.ja,.zh-tw) .hero h1 { font-size: clamp(58px,6vw,92px); line-height: 1.3; }
:is(.ja,.zh-tw) p { line-height: 1.95; }
:is(.ja,.zh-tw) .hero-copy { max-width: 530px; }
:is(.ja,.zh-tw) .product-copy h2 { font-size: clamp(30px,3vw,44px); }
:is(.ja,.zh-tw) .story h2 { font-size: clamp(27px,2.7vw,40px); }
:is(.ja,.zh-tw) .contact h2 { font-size: clamp(30px,3vw,44px); }
:is(.ja,.zh-tw) .eyebrow { letter-spacing: .16em; }
:is(.ja,.zh-tw) .product-gallery blockquote { font-size: 24px; line-height: 1.7; }
@media (max-width:1100px) { .site-header nav { gap: 20px; } }
@media (max-width:900px) {
  .language-menu { margin-left: 0; }
  .language-menu summary { min-width: 60px; padding-inline: 9px; }
  :is(.ja,.zh-tw) .hero h1 { font-size: clamp(48px,9vw,72px); }
  :is(.ja,.zh-tw) .product-copy h2, :is(.ja,.zh-tw) .contact h2 { font-size: 31px; }
  :is(.ja,.zh-tw) .story h2 { font-size: 28px; }
  :is(.ja,.zh-tw) .product-gallery blockquote { font-size: 20px; }
  :is(.ja,.zh-tw) .story-copy { width: 100%; }
}
@media (max-width:360px) {
  .site-header .brand { gap: 7px; } .site-header .brand span { font-size: 18px; } .site-header .brand img { width: 35px; height: 35px; }
  .language-menu summary { min-width: 54px; padding-inline: 7px; }
  :is(.ja,.zh-tw) .hero h1 { font-size: 44px; }
  :is(.ja,.zh-tw) .product-copy h2, :is(.ja,.zh-tw) .contact h2 { font-size: 27px; }
}