.header-tools{display:flex;align-items:center;gap:9px}
.lang-menu{position:relative}
.lang-menu summary,.help-theme-toggle{height:40px;border:1px solid #dce4ed;border-radius:10px;background:#fff;color:#42566d;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lang-menu summary{min-width:72px;padding:0 11px;gap:7px;font-weight:700;font-size:13px;list-style:none}
.lang-menu summary::-webkit-details-marker{display:none}.lang-menu summary svg{width:14px;fill:none;stroke:currentColor;stroke-width:2;transition:transform .2s}.lang-menu[open] summary svg{transform:rotate(180deg)}
.lang-options{position:absolute;top:47px;inset-inline-end:0;width:148px;padding:6px;background:#fff;border:1px solid #dce4ed;border-radius:12px;box-shadow:0 14px 35px #0b29451f;z-index:50}
.lang-options button{display:block;width:100%;border:0;background:none;color:#42566d;text-align:start;padding:9px 11px;border-radius:8px;cursor:pointer;font-weight:600}.lang-options button:hover,.lang-options button.active{background:#edf6ff;color:#0758a8}
.help-theme-toggle{width:40px;padding:0}.help-theme-toggle svg{grid-area:1/1;width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.help-theme-toggle{display:grid}.help-theme-toggle .sun{display:none}
.lang-menu summary:focus-visible,.help-theme-toggle:focus-visible{outline:3px solid #1685d633;outline-offset:2px}
html.dark{color-scheme:dark;--ink:#e8eef6;--dark:#f5f8fc;--muted:#aab8c8;--line:#273a50;--pale:#142438;--shadow:0 14px 38px #0005}
html.dark body{background:#0b1624;color:var(--ink)}html.dark header{background:#0f1d2d;border-color:#26384c}html.dark .brand small,html.dark .nav nav>a{color:#c1ccda}
html.dark .lang-menu summary,html.dark .help-theme-toggle,html.dark .lang-options{background:#142438;border-color:#33475e;color:#dce6f1}html.dark .lang-options button{color:#cdd8e5}html.dark .lang-options button:hover,html.dark .lang-options button.active{background:#203b58;color:#79bfff}
html.dark .help-theme-toggle{color:#f8c85b}html.dark .help-theme-toggle .moon{display:none}html.dark .help-theme-toggle .sun{display:block}
html.dark .category,html.dark .article-link,html.dark .suggestion{background:#0f1d2d;border-color:var(--line)}html.dark .category:hover{border-color:#416688}html.dark .cat-icon,html.dark .doc{background:#172f49}html.dark .article-row{border-color:var(--line)}
html.dark .body{color:#c5d0dd}html.dark .note{background:#142b45}html.dark .warning{background:#352b18}html.dark .feedback{background:#142438}html.dark .feedback button{background:#0f1d2d;border-color:#34485e;color:#dce6f1}
html.dark .support{background:#10243a;border-color:#243d57}html.dark .search>div{background:#101f31}html.dark .suggestion:hover{background:#172d45}html.dark .search input{color:#17283e}
html.dark .official-logo{filter:none!important}.footer-logo{filter:none!important}
html.dark .page{background:#0b1624}html.dark .section-title h2{color:#edf3fa}html.dark .category{background:#0f1d2d;box-shadow:0 0 0 1px #2a3d53}html.dark .category footer{border-color:#2a3d53!important;color:#9fb0c3!important}html.dark .frequent,html.dark .cat-head{background:#101f31;border-color:#2a3d53}html.dark .article-link{border-color:#2a3d53}html.dark .track-dialog{background:#0f1d2d;border-color:#33475e}html.dark .track-dialog h2,html.dark .track-form label{color:#edf3fa}html.dark .track-copy{color:#aab8c8}html.dark .track-close{background:#182b40;color:#cbd7e4}
@media(max-width:900px){.header-tools{margin-top:8px}.lang-options{inset-inline-start:0;inset-inline-end:auto}.nav nav{overflow:visible!important}}
@media(max-width:580px){.lang-menu summary{min-width:62px}.header-tools{width:100%;justify-content:flex-start}.lang-options{width:100%;min-width:150px}}
.feedback button{display:inline-flex;align-items:center;gap:7px}.feedback button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand i{display:none!important}.toc{border-inline-start:0!important;padding-inline-start:0!important}.note,.warning{border-inline:0!important}
.cat-icon{display:grid!important;place-items:center!important;padding:0!important;line-height:1!important}.cat-icon:before{display:none!important}.cat-icon>svg{display:block;width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;overflow:visible}.cat-head .cat-icon{flex:0 0 42px}
.api-docs-link{display:flex;align-items:center;gap:11px;width:fit-content;margin:18px 0 28px;padding:11px 14px;border:1px solid #cdddec;border-radius:10px;color:#0758a8;background:#fff;font-weight:700;font-size:14px}.api-docs-link:hover{background:#f4f8fc}.api-docs-link svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.api-docs-link b{margin-inline-start:5px}html.dark .api-docs-link{background:#101f31;border-color:#33475e;color:#76bdff}html.dark .api-docs-link:hover{background:#172d45}