.language-switch{position:relative;flex-shrink:0;color:var(--ink);font-size:12px;z-index:20}
.language-switch summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;min-height:38px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);white-space:nowrap;font-weight:600;line-height:1.6}.language-switch summary>.icon{width:16px;height:16px;color:var(--muted)}.language-switch .language-chevron{width:13px!important;height:13px!important;transition:transform .2s}.language-switch[open] .language-chevron{transform:rotate(180deg)}
.language-switch summary::-webkit-details-marker{display:none}
.language-switch summary:hover,.language-switch[open] summary{color:var(--accent-ink);background:var(--accent-tint)}
.language-switch summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.language-switch>nav{position:absolute;right:0;top:calc(100% + 8px);display:grid;gap:3px;min-width:192px;max-width:calc(100vw - 40px);padding:6px;border:1px solid var(--line);border-radius:10px;background:var(--surface);box-shadow:0 12px 30px #192a461f;max-height:65vh;overflow:auto;scrollbar-width:none}
.language-switch>nav::-webkit-scrollbar{display:none}
.language-switch a{display:block;font-size:13px;line-height:1.5;padding:9px 12px;border-radius:6px;color:var(--muted);text-decoration:none;white-space:nowrap}
.language-switch a[aria-current="true"]{color:var(--accent-ink);background:var(--accent-tint);font-weight:600}
.language-switch a:hover,.language-switch a:focus-visible{background:var(--accent-tint);color:var(--accent-ink);outline-offset:0}
.site-header>.language-switch{margin-left:10px}.site-header>nav{margin-left:auto}
html[lang="zh-CN"]{--font:"Segoe UI","Microsoft YaHei","PingFang SC",Arial,sans-serif}
html[lang="ja"]{--font:"Segoe UI","Yu Gothic","Meiryo",sans-serif}
html[lang="ko"]{--font:"Segoe UI","Malgun Gothic","Apple SD Gothic Neo",sans-serif}
html:is([lang="zh-CN"],[lang="ja"],[lang="ko"]) .hero h1{line-height:1.25;letter-spacing:-.035em}
html:is([lang="zh-CN"],[lang="ja"],[lang="ko"]) .eyebrow{letter-spacing:.1em}
h1,h2,h3{overflow-wrap:anywhere;hyphens:auto}.hero h1 [data-i18n]{color:inherit}
@media(max-width:700px){.site-header>.language-switch{margin-left:auto;margin-right:0;margin-bottom:0}.site-header>nav{margin-left:0;flex:none;min-width:0}.site-header{justify-content:space-between}.site-header>.brand{width:auto}.language-switch summary{padding:6px 9px;font-size:11px;gap:6px}.hero h1{overflow-wrap:anywhere}}