html[lang="zh-CN"]{font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif}html[lang="zh-CN"] h1,html[lang="zh-CN"] h2,html[lang="zh-CN"] h3{letter-spacing:-.025em;line-height:1.35}html[lang="zh-CN"] em{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-style:normal}html[lang="zh-CN"] .hero h1{font-size:clamp(40px,4.5vw,62px)}html[lang="zh-CN"] .product-card p{min-height:90px}html[lang="zh-CN"] .brand-sub{letter-spacing:1px}.header nav .lang-switch{font-size:11px;padding:8px 12px;border:1px solid #cdd8c4;border-radius:18px;white-space:nowrap}.header nav{gap:22px}html[lang="zh-CN"] .hero-copy>p{max-width:480px}html[lang="zh-CN"] .product-card h3{font-size:34px}html[lang="zh-CN"] .eyebrow{letter-spacing:1.5px}html[lang="zh-CN"] .trademark{font-size:10px}@media(max-width:800px){.header nav{gap:13px}}@media(max-width:540px){html[lang="zh-CN"] .hero h1{font-size:39px}html[lang="zh-CN"] .product-card h3{font-size:30px}html[lang="zh-CN"] .product-card p{min-height:0}.header nav .lang-switch{align-self:start;margin-top:8px}}