.language-picker{display:inline-flex;align-items:center;max-width:150px;flex-shrink:0}.language-picker select{font:inherit;font-size:12px;line-height:1.5;min-height:36px;max-width:100%;padding:6px 24px 6px 9px;border:1px solid var(--line,var(--border));border-radius:8px;background:var(--surface,var(--panel));color:var(--ink,var(--text));cursor:pointer}.language-picker select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.geo-credit{display:block;width:fit-content;font-size:10px;color:var(--quiet,var(--muted));margin-top:18px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}html:not([lang^=zh]):not([lang=ja]):not([lang=ko]) h1{letter-spacing:-.045em}html:not([lang^=zh]) .hero h1{font-size:clamp(48px,5.5vw,80px)}html:not([lang^=zh]) .feature h2{font-size:clamp(30px,3.5vw,48px)}.site-footer{flex-wrap:wrap}.site-footer .geo-credit{flex-basis:100%;margin-top:0}
@media(max-width:1100px){.header-nav{gap:10px}.header-nav>a{display:none}.header-actions{gap:8px}.header-actions .nav-download{display:none}}
@media(max-width:760px){.language-picker{max-width:112px}.language-picker select{min-height:44px;font-size:11px;padding-left:7px;padding-right:12px}.header-actions .theme-label{display:none}.header-actions .theme-toggle{min-width:32px;padding:0 4px}.header-inner{gap:10px}.header-actions{gap:6px}.header-nav{gap:2px}.brand strong{font-size:15px}.site-header{gap:8px}.language-picker option{font-size:14px}}
@media(max-width:380px){.header-inner{padding-left:12px;padding-right:12px}.brand{gap:5px}.brand>span,.brand strong{font-size:15px}.language-picker{max-width:100px}.header-nav .theme-toggle{font-size:10px;width:36px;overflow:hidden}.header-nav .menu-toggle{font-size:11px;padding:0 4px}}
/* Keep Japanese headline phrases intact instead of leaving a single trailing kana. */
html[lang=ja] .hero h1{font-size:clamp(40px,4.2vw,62px);line-height:1.35}
html[lang=ko] .hero h1{word-break:keep-all;font-size:clamp(40px,4.5vw,64px)}