.lang-switch{position:relative;flex:0 0 auto;font-weight:700;line-height:1.4}.lang-switch summary{list-style:none;cursor:pointer;padding:.45rem .35rem;white-space:nowrap}.lang-switch summary::-webkit-details-marker{display:none}.lang-switch summary:focus-visible,.lang-switch__options a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.lang-switch__options{position:absolute;right:0;top:calc(100% + .45rem);z-index:110;display:grid;min-width:9rem;padding:.35rem;border:1px solid var(--hairline);border-radius:.8rem;background:var(--surface,var(--bg));box-shadow:var(--shadow-card)}.lang-switch__options a{display:block;padding:.65rem .8rem;white-space:nowrap;text-decoration:none;color:var(--ink,var(--snow))}.lang-switch__options a:hover,.lang-switch__options a[aria-current=true]{background:var(--surface-2);border-radius:.5rem;color:var(--accent-text)}.sw-language-standalone{position:fixed;right:1rem;bottom:1.4rem;z-index:60;border-radius:1rem;background:var(--surface);color:var(--ink);padding:.15rem .45rem}.sw-language-standalone .lang-switch__options{top:auto;bottom:calc(100% + .45rem)}html.yk-app .sw-language-standalone{display:none}html[lang=zh-Hans]{--font-sans:"Inter","Noto Sans SC","Microsoft YaHei","PingFang SC",system-ui,sans-serif;--font-body:"Inter","Noto Sans SC","Microsoft YaHei","PingFang SC",system-ui,sans-serif}