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240;--goclub-border:#e2e2e3;--goclub-muted-text:#67676c;--goclub-subtle-text:#929295;--goclub-sidebar-width:272px}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--vp-bg:#1b1b1f;--vp-bg-soft:#202127;--vp-bg-soft-hover:#26262c;--vp-card-hover:#26262b;--vp-text-1:#dfdfd6;--vp-text-2:#98989f;--vp-text-3:#6a6a71;--vp-divider:#2e2e32;--vp-brand:#8db4ff;--vp-brand-hover:#a9c6ff;--vp-brand-1:#8db4ff;--vp-brand-2:#6ea8ff;--vp-brand-3:#4ea0ff;--vp-brand-soft:rgba(78, 160, 255, 0.16);--vp-brand-soft-weak:rgba(78, 160, 255, 0.1);--vp-code-bg:#202127;--vp-pre-bg:#161618;--vp-mark-bg:rgba(141, 180, 255, 0.22);--vp-selection:rgba(141, 180, 255, 0.28);--vp-bg-sidebar:#161618;--vp-divider-light:#2e2e32;--vp-btn-bg:var(--gemini-gradient);--vp-btn-hover:var(--gemini-gradient);--gc-active:#2e2e32;--gc-border-strong:#3e3e42;--body-background:#1b1b1f;--body-font-color:#dfdfd6;--color-link:#8db4ff;--color-visited-link:#8db4ff;--icon-filter:brightness(0) invert(0.9);--gray-100:#202127;--gray-200:#2e2e32;--gray-500:#6e6e6a;--color-accent-default:#dfdfd6;--color-accent-default-tint:rgba(223, 223, 214, 0.1);--color-accent-note:#8db4ff;--color-accent-note-tint:rgba(141, 180, 255, 0.14);--color-accent-tip:#3ecf8e;--color-accent-tip-tint:rgba(62, 207, 142, 0.12);--color-accent-important:#b392f0;--color-accent-important-tint:rgba(179, 146, 240, 0.14);--color-accent-warning:#d2996a;--color-accent-warning-tint:rgba(210, 153, 106, 0.14);--color-accent-caution:#f07575;--color-accent-caution-tint:rgba(240, 117, 117, 0.12);--color-accent-info:#8db4ff;--color-accent-info-tint:rgba(141, 180, 255, 0.14);--color-accent-success:#3ecf8e;--color-accent-success-tint:rgba(62, 207, 142, 0.12);--color-accent-danger:#f07575;--color-accent-danger-tint:rgba(240, 117, 117, 0.12);--goclub-primary:#8db4ff;--goclub-primary-rgb:141, 180, 255;--goclub-border:#2e2e32;--goclub-muted-text:#a8a8a3;--goclub-subtle-text:#6e6e6a}}:root[data-theme=dark]{--vp-bg:#1b1b1f;--vp-bg-soft:#202127;--vp-bg-soft-hover:#26262c;--vp-card-hover:#26262b;--vp-text-1:#dfdfd6;--vp-text-2:#98989f;--vp-text-3:#6a6a71;--vp-divider:#2e2e32;--vp-brand:#8db4ff;--vp-brand-hover:#a9c6ff;--vp-brand-1:#8db4ff;--vp-brand-2:#6ea8ff;--vp-brand-3:#4ea0ff;--vp-brand-soft:rgba(78, 160, 255, 0.16);--vp-brand-soft-weak:rgba(78, 160, 255, 0.1);--vp-code-bg:#202127;--vp-pre-bg:#161618;--vp-mark-bg:rgba(141, 180, 255, 0.22);--vp-selection:rgba(141, 180, 255, 0.28);--vp-bg-sidebar:#161618;--vp-divider-light:#2e2e32;--vp-btn-bg:var(--gemini-gradient);--vp-btn-hover:var(--gemini-gradient);--gc-active:#2e2e32;--gc-border-strong:#3e3e42;--body-background:#1b1b1f;--body-font-color:#dfdfd6;--color-link:#8db4ff;--color-visited-link:#8db4ff;--icon-filter:brightness(0) invert(0.9);--gray-100:#202127;--gray-200:#2e2e32;--gray-500:#6e6e6a;--color-accent-default:#dfdfd6;--color-accent-default-tint:rgba(223, 223, 214, 0.1);--color-accent-note:#8db4ff;--color-accent-note-tint:rgba(141, 180, 255, 0.14);--color-accent-tip:#3ecf8e;--color-accent-tip-tint:rgba(62, 207, 142, 0.12);--color-accent-important:#b392f0;--color-accent-important-tint:rgba(179, 146, 240, 0.14);--color-accent-warning:#d2996a;--color-accent-warning-tint:rgba(210, 153, 106, 0.14);--color-accent-caution:#f07575;--color-accent-caution-tint:rgba(240, 117, 117, 0.12);--color-accent-info:#8db4ff;--color-accent-info-tint:rgba(141, 180, 255, 0.14);--color-accent-success:#3ecf8e;--color-accent-success-tint:rgba(62, 207, 142, 0.12);--color-accent-danger:#f07575;--color-accent-danger-tint:rgba(240, 117, 117, 0.12);--goclub-primary:#8db4ff;--goclub-primary-rgb:141, 180, 255;--goclub-border:#2e2e32;--goclub-muted-text:#a8a8a3;--goclub-subtle-text:#6e6e6a}body{font-family:var(--goclub-font-body);background:var(--vp-bg);color:var(--vp-text-1);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body:has(.goclub-topbar){padding-top:var(--gc-topbar-h)}::selection{background:var(--vp-selection)}main.container{max-width:var(--vp-layout-max-width);margin-inline:auto;width:100%;padding:0}*{scrollbar-width:none}*::-webkit-scrollbar{display:none;width:0;height:0}.goclub-topbar{position:fixed;inset:0 0 auto 0;height:var(--gc-topbar-h);z-index:50;background:var(--vp-bg);border-bottom:1px solid var(--vp-divider);font-family:Fredoka,pingfang sc,hiragino sans gb,microsoft yahei,sans-serif}.goclub-topbar-inner{display:flex;align-items:center;gap:8px;height:100%;max-width:var(--vp-layout-max-width);margin-inline:auto;padding:0 24px}@media screen and (min-width:48rem){.goclub-topbar-inner{padding:0 32px}}.goclub-topbar-brand{display:flex;align-items:center;gap:10px;color:var(--vp-text-1);text-decoration:none;min-width:0}.book-brand-logo{display:block;width:30px;height:30px;flex:none}.book-brand-name{font-family:Fredoka,pingfang sc,hiragino sans gb,sans-serif;font-size:19px;font-weight:600;letter-spacing:.01em;color:var(--vp-text-1);white-space:nowrap}:root[data-theme=dark] .book-brand-logo{filter:brightness(1.12)saturate(1.05)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .book-brand-logo{filter:brightness(1.12)saturate(1.05)}}.goclub-topbar-spacer{flex:auto}.goclub-topbar a{flex:none}.goclub-topbar-icon{width:18px;height:18px;flex:none}.goclub-topbar-btn{display:none;align-items:center;justify-content:center;width:36px;height:36px;border-radius:6px;color:var(--vp-text-2);cursor:pointer}.goclub-topbar-btn:hover{background:var(--vp-bg-soft);color:var(--vp-text-1)}.goclub-topbar-search{display:flex;align-items:center;gap:8px;flex:auto;max-width:320px;height:40px;margin-inline-start:12px;padding:0 10px 0 12px;border:none;border-radius:8px;background:var(--vp-bg-soft);color:var(--vp-text-3);font-size:13px;cursor:text}.goclub-topbar-search:hover{background:var(--vp-bg-soft-hover)}.goclub-topbar-search-text{flex:auto;text-align:left}.goclub-topbar-kbd,.home-search-kbd{padding:1px 6px;border:1px solid var(--vp-divider);border-bottom-width:2px;border-radius:4px;background:var(--vp-bg);color:var(--vp-text-2);font-size:11px;font-family:inherit;line-height:1.5}.goclub-topbar-nav{display:none}@media screen and (min-width:60rem){.goclub-topbar-nav{display:flex;align-items:stretch;margin-left:24px}.goclub-topbar-nav a{display:flex;align-items:center;padding:0 12px;font-size:14px;font-weight:500;color:var(--vp-text-1);text-decoration:none;white-space:nowrap}.goclub-topbar-nav a:hover{color:var(--vp-brand-1)}.goclub-topbar-nav a.active{color:var(--vp-brand-1)}}.goclub-topbar-more{position:relative;display:flex;align-items:stretch}.goclub-topbar-more-btn{display:flex;align-items:center;gap:4px;padding:0 12px;border:none;background:0 0;font-size:14px;font-weight:500;font-family:inherit;color:var(--vp-text-1);cursor:pointer;white-space:nowrap}.goclub-topbar-more-btn:hover{color:var(--vp-brand-1)}.goclub-topbar-more-icon{width:14px;height:14px;color:var(--vp-text-2);transition:transform .2s ease-in-out}.goclub-topbar-more:hover .goclub-topbar-more-icon,.goclub-topbar-more:focus-within .goclub-topbar-more-icon{transform:rotate(180deg)}.goclub-topbar-flyout{position:absolute;top:100%;inset-inline-end:0;z-index:55;padding-top:6px;opacity:0;visibility:hidden;transform:translateY(4px);transition:opacity .18s ease-in-out,transform .18s ease-in-out,visibility .18s}.goclub-topbar-more:hover .goclub-topbar-flyout,.goclub-topbar-more:focus-within .goclub-topbar-flyout{opacity:1;visibility:visible;transform:none}.goclub-topbar-flyout-panel{min-width:184px;padding:8px;border:1px solid var(--vp-divider);border-radius:12px;background:var(--vp-bg);box-shadow:0 12px 32px rgba(0,0,0,.12)}.goclub-topbar-flyout-panel a{display:block;padding:6px 12px;border-radius:6px;font-size:14px;font-weight:500;line-height:24px;color:var(--vp-text-1);text-decoration:none;white-space:nowrap}.goclub-topbar-flyout-panel a:hover{background:var(--vp-bg-soft);color:var(--vp-brand-1)}.goclub-topbar-flyout-panel a.active{color:var(--vp-brand-1)}.goclub-topbar-divider{flex:none;align-self:center;width:1px;height:24px;margin:0 2px 0 10px;background:var(--vp-divider)}@media screen and (max-width:59.99rem){.goclub-topbar-divider{display:none}}.goclub-topbar .goclub-topbar-github{display:flex;align-items:center;justify-content:center;padding:8px;border-radius:6px;color:var(--vp-text-2);text-decoration:none}.goclub-topbar .goclub-topbar-github:hover{color:var(--vp-text-1)}.goclub-topbar-github .goclub-github-mark{width:20px;height:20px;flex:none;fill:currentColor;stroke:none}.theme-toggle{display:flex;align-items:center;height:36px;padding:0 2px;border:none;background:0 0;cursor:pointer}.goclub-switch-track{position:relative;display:block;width:40px;height:22px;border:1px solid var(--vp-divider);border-radius:11px;background:var(--vp-bg-soft);transition:border-color .25s,background-color .25s}.theme-toggle:hover .goclub-switch-track{border-color:var(--vp-text-3)}.goclub-switch-knob{position:absolute;top:1px;left:1px;display:flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:var(--vp-bg);box-shadow:0 1px 2px rgba(0,0,0,.15),0 0 0 1px rgba(0,0,0,4%);transition:transform .25s}.goclub-switch-knob svg{width:12px;height:12px;color:var(--vp-text-2)}:root[data-theme=dark] .goclub-switch-knob{transform:translateX(18px)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .goclub-switch-knob{transform:translateX(18px)}}.lucide-icon{display:inline-block;vertical-align:middle;flex:none}.book-search-close svg{width:18px;height:18px}.book-menu{font-size:.875rem}.book-menu .book-menu-content{background:var(--vp-bg-sidebar);padding:32px 32px 96px}.book-menu nav ul{padding:0;margin:0;list-style:none}.book-menu nav a{color:var(--vp-text-2)}.book-menu .goclub-menu-directory>ul>li{margin:0}.book-menu .goclub-menu-directory>ul>li+li{margin-top:24px;border-top:1px solid var(--vp-divider-light);padding-top:10px}.book-menu .goclub-menu-directory>ul>li>a,.book-menu .goclub-menu-directory>ul>li>label{display:flex;align-items:center;padding:6px 12px;font-size:14px;font-weight:700;line-height:20px;color:var(--vp-text-1)}.book-menu .goclub-menu-directory>ul>li>label>a{flex:auto;color:inherit;font-size:inherit;font-weight:inherit}.book-menu .goclub-menu-directory>ul>li>ul{margin-top:2px}.book-menu .goclub-menu-directory>ul>li>ul li{margin:0}.book-menu .goclub-menu-directory>ul>li>ul a,.book-menu .goclub-menu-directory>ul>li>ul label{display:flex;align-items:center;padding:0 12px;border-radius:6px;font-size:14px;font-weight:500;line-height:32px;color:var(--vp-text-2)}.book-menu .goclub-menu-directory>ul>li>ul label>a{flex:auto;color:inherit;font-size:inherit;font-weight:inherit;line-height:inherit}.book-menu nav a[href]:hover,.book-menu nav label:hover{color:var(--vp-brand-1);opacity:1}.book-menu .goclub-menu-directory>ul>li>ul a[href]:hover{background:var(--vp-bg-soft)}:root[data-theme=dark] .book-menu .goclub-menu-directory>ul>li>ul a[href]:hover{background:var(--vp-bg-soft)}.book-menu nav a.active{color:var(--vp-brand-1);font-weight:500}.book-menu .goclub-menu-directory>ul>li>ul a.active{color:var(--vp-brand-1);font-weight:500}.book-menu nav a.is-ancestor{color:var(--vp-text-1);font-weight:500}.book-menu .goclub-menu-directory>ul>li>ul ul{margin-inline-start:12px;padding-inline-start:16px;border-inline-start:1px solid var(--vp-divider)}.book-section-flat>a,.book-section-flat>label{font-weight:700}.book-menu nav label>img.book-icon{width:14px;height:14px;flex:none;margin-inline-start:4px;opacity:.4;transition:transform .15s ease-in-out,opacity .15s ease-in-out}.book-menu nav label:hover>img.book-icon{opacity:.85}.book-menu nav input.toggle:checked+label>img.book-icon{opacity:.7}.book-menu nav input.toggle:checked+label+ul{animation:gc-menu-fade .18s ease-in-out}@media screen and (min-width:56.01rem){.book-menu{flex:0 0 var(--vp-sidebar-w)}.book-menu .book-menu-content{width:var(--vp-sidebar-w);border-right:none;top:var(--gc-topbar-h)}}@media screen and (min-width:56.01rem) and (min-width:90rem){.book-menu .book-menu-content{box-shadow:calc((var(--vp-layout-max-width) - 100vw)/2)0 0 0 var(--vp-bg-sidebar)}}@media screen and (min-width:56.01rem){body.sidebar-collapsed .book-menu{flex-basis:var(--vp-sidebar-w)}body.sidebar-collapsed .book-menu .book-menu-content{transform:none;visibility:visible}body.book-kind-home .book-menu{display:none}.book-search:not(.is-expanded){position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:none}}@keyframes gc-menu-fade{from{opacity:0}to{opacity:1}}.book-search{position:relative;margin:0 0 14px}.book-search-topbar,.book-search-filters{display:none}.book-search-field{position:relative}.book-search input{width:100%;height:38px;padding:0 46px 0 12px;border:1px solid transparent;border-radius:6px;background:var(--vp-bg-soft);color:var(--vp-text-1);font-size:14px;line-height:1.5}.book-search input::placeholder{color:var(--vp-text-3)}.book-search input:focus{outline:none;border-color:var(--vp-brand-1);background:var(--vp-bg)}.book-search-spinner{border-top-color:var(--vp-text-2)}.book-search-clear{position:absolute;top:50%;right:8px;transform:translateY(-50%);padding:2px 8px;border:none;border-radius:6px;background:var(--vp-bg-soft);color:var(--vp-text-2);font-size:12px;cursor:pointer}.book-search-clear:hover{background:var(--vp-bg-soft-hover);color:var(--vp-text-1)}.book-search-summary{margin-top:8px}.book-search-status{padding:8px 10px;border-radius:6px;background:var(--vp-bg-soft);color:var(--vp-text-2);font-size:12.5px;line-height:1.5}.book-search-status.is-error{background:rgba(216,71,71,8%);color:#c03636}:root[data-theme=dark] .book-search-status.is-error{color:#f08a8a}#book-search-results{list-style:none;margin:8px 0 0;padding:0}#book-search-results:empty{display:none}.book-search.is-results-collapsed .book-search-summary,.book-search.is-results-collapsed #book-search-results{display:none}.book-search-result{border-bottom:1px solid var(--vp-divider)}.book-search-result:last-child{border-bottom:none}.book-search-result a{display:block;padding:10px 8px;border-radius:6px;color:var(--vp-text-1);text-decoration:none}.book-search-result a:hover,.book-search-result a:focus-visible{background:var(--vp-bg-soft)}.book-search-result-heading{display:flex;align-items:flex-start;gap:8px}.book-search-result-badge{flex:none;margin-top:2px;padding:1px 6px;border-radius:4px;background:var(--vp-brand-soft);color:var(--vp-brand-1);font-size:11px;font-weight:600;line-height:1.5}.book-search-result-badge.is-book{background:var(--vp-bg-soft);color:var(--vp-text-2)}.book-search-result-title{font-size:14px;font-weight:600;line-height:1.45}.book-search-result-breadcrumb{display:block;margin-top:3px;overflow:hidden;color:var(--vp-text-3);font-size:12px;white-space:nowrap;text-overflow:ellipsis}.book-search-result-snippet{display:-webkit-box;margin-top:4px;overflow:hidden;color:var(--vp-text-2);font-size:12.5px;line-height:1.55;-webkit-box-orient:vertical;-webkit-line-clamp:3}.book-search-result mark,.book-search mark{padding:0 1px;border-radius:2px;background:var(--vp-mark-bg);color:inherit}.book-search-backdrop{position:fixed;inset:0;z-index:79;border:none;background:rgba(0,0,0,.45);cursor:default}.book-search.is-expanded{position:fixed;top:8vh;left:50%;transform:translateX(-50%);z-index:80;display:flex;flex-direction:column;width:680px;max-width:calc(100vw - 32px);max-height:80vh;margin:0;padding:20px 20px 10px;overflow:hidden;border:1px solid var(--vp-divider);border-radius:12px;background:var(--vp-bg);box-shadow:0 12px 32px rgba(0,0,0,.14)}.book-search.is-expanded .book-search-topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.book-search.is-expanded .book-search-topbar strong{display:block;font-size:16px;font-weight:600;color:var(--vp-text-1)}.book-search.is-expanded .book-search-topbar small{display:block;margin-top:2px;color:var(--vp-text-3);font-size:12.5px}.book-search-close{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:none;border-radius:6px;background:0 0;color:var(--vp-text-2);line-height:1;cursor:pointer}.book-search-close:hover{background:var(--vp-bg-soft);color:var(--vp-text-1)}.book-search.is-expanded input{height:46px;padding:0 52px 0 14px;font-size:15px;border-radius:8px}.book-search.is-expanded .book-search-filters{display:flex;flex-wrap:wrap;gap:4px 18px;margin-top:8px;border-bottom:1px solid var(--vp-divider)}.book-search-filter{padding:8px 1px;margin-bottom:-1px;border:none;border-bottom:2px solid transparent;border-radius:0;background:0 0;color:var(--vp-text-2);font-size:13.5px;cursor:pointer}.book-search-filter:hover{color:var(--vp-text-1)}.book-search-filter[aria-pressed=true]{border-bottom-color:var(--vp-brand-1);color:var(--vp-brand-1);font-weight:600}.book-search.is-expanded #book-search-results{overflow-y:auto;margin-top:6px}body.search-overlay-open{overflow:hidden}.book-page{min-width:0;padding:32px 24px 96px}@media screen and (min-width:48rem){.book-page{padding:48px 32px 128px}}@media screen and (min-width:60rem){.book-page{padding:32px 32px 64px}}.book-page>.book-article,.book-page>.book-footer{width:100%;max-width:var(--gc-article-w);margin-inline:auto}body.book-kind-section .book-page>.book-article,body.book-kind-section .book-page>.book-footer{max-width:var(--gc-article-w)}body.book-kind-home .book-page{padding:0 24px 64px}@media screen and (min-width:40rem){body.book-kind-home .book-page{padding-inline:48px}}@media screen and (min-width:60rem){body.book-kind-home .book-page{padding-inline:64px}}body.book-kind-home .book-page>.book-article,body.book-kind-home .book-page>.book-footer{max-width:none}.book-header{margin:0}.book-toc{flex:0 0 var(--gc-toc-w);font-size:.8125rem}@media screen and (max-width:79.99rem){.book-toc{display:none}}.book-toc 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img{display:block;width:100%;height:auto}.onenote-details{margin-top:22px;border:1px solid var(--vp-c-divider,#e2e2e3);border-radius:12px;padding:12px 16px}.onenote-details summary{cursor:pointer;font-weight:600;font-size:14.5px}.onenote-details[open] summary{margin-bottom:10px}.onenote-doc{font-size:15px;line-height:1.75}