:root{--vt-c-white:#fff;--vt-c-white-soft:#f8f8f8;--vt-c-white-mute:#f2f2f2;--vt-c-black:#181818;--vt-c-black-soft:#222;--vt-c-black-mute:#282828;--vt-c-indigo:#2c3e50;--vt-c-divider-light-1:#3c3c3c4a;--vt-c-divider-light-2:#3c3c3c1f;--vt-c-divider-dark-1:#545454a6;--vt-c-divider-dark-2:#5454547a;--vt-c-text-light-1:var(--vt-c-indigo);--vt-c-text-light-2:#3c3c3ca8;--vt-c-text-dark-1:var(--vt-c-white);--vt-c-text-dark-2:#ebebeba3;--color-background:var(--vt-c-white);--color-background-soft:var(--vt-c-white-soft);--color-background-mute:var(--vt-c-white-mute);--color-border:var(--vt-c-divider-light-2);--color-border-hover:var(--vt-c-divider-light-1);--color-heading:var(--vt-c-text-light-1);--color-text:var(--vt-c-text-light-1);--section-gap:160px}@media 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#0000002e}.toc-float-toggle:hover{background:#222;box-shadow:0 6px 24px #00000038}@media (min-width:900px){#app-container{flex-direction:column;width:31.8vw;height:100vh;margin-left:45%;display:flex;overflow:hidden}#app{padding:0!important}}body{color:#000;background-color:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6}.container{padding:20px}h1{color:#2c3e50;text-align:center}h2{color:#34495e;border-bottom:2px solid #ecf0f1;margin-top:30px;padding-bottom:10px}.item-list a{color:#2980b9;background:#ecf0f1;border-radius:4px;margin-bottom:10px;padding:15px;font-weight:700;text-decoration:none;transition:background-color .3s;display:block}.item-list a:hover{background-color:#bdc3c7}@media (min-width:900px){.container{width:1000px;padding:20px 20px 20px 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