.site-header nav{margin-left:auto;margin-right:20px}
.header-actions{display:flex;align-items:center;gap:16px;order:3}
.lang-switch{display:flex;align-items:center;gap:6px;border:1px solid rgba(255,255,255,.3);padding:9px 12px;background:rgba(5,7,8,.5);backdrop-filter:blur(10px)}
.lang-switch button{border:0;background:none;color:#7f8783;font:700 11px Manrope,sans-serif;letter-spacing:.08em;padding:2px 3px;cursor:pointer}
.lang-switch button.active{color:var(--acid)}
.lang-switch span{font-size:10px;color:#4f5653}
body[data-language="zh"]{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",'DM Sans',sans-serif}
body[data-language="zh"] h1,body[data-language="zh"] h2,body[data-language="zh"] h3,body[data-language="zh"] blockquote{letter-spacing:-.02em;line-height:1.12}
body[data-language="zh"] .eyebrow,body[data-language="zh"] .product-top,body[data-language="zh"] .series{letter-spacing:.08em}
@media(max-width:900px){.site-header nav{margin:0}.header-actions{margin-left:auto}.lang-switch{padding:7px 8px}.site-header{gap:10px}}
@media(max-width:560px){.lang-switch{gap:3px;padding:6px}.lang-switch button{font-size:10px}.header-actions{gap:7px}.site-header{padding:0 16px}.brand small{display:none}}