:root{--shell-u:calc(min(100vw, 1920px) / 1440);--shell-nav-h:calc(69 * var(--shell-u));--shell-rail-w:calc(71 * var(--shell-u));--shell-tab-h:65px}.shell-header{position:sticky;top:0;z-index:40;height:var(--shell-nav-h);background:var(--nav-bg);border-bottom:1px solid var(--line);transition:box-shadow .3s}.shell-header-in{height:100%;max-width:1400px;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}@media (min-width:1024px){.shell-header-in{display:grid;grid-template-columns:1fr auto 1fr;padding:0 20px}.shell-logo{justify-self:center}}.shell-side{align-items:center;gap:20px;min-width:0}.shell-side.l{justify-self:start}.shell-side.r{display:flex;justify-self:end}.shell-logo{white-space:nowrap}.shell-logo span{letter-spacing:.22em}@media (max-width:639px){.shell-side{gap:10px}.shell-logo svg{width:26px;height:26px}.shell-logo span{font-size:13px;letter-spacing:.12em}}.shell-link{color:var(--muted);font-size:14px;font-weight:500;transition:color .2s}.shell-link:hover,.shell-link[aria-current]{color:var(--ink)}.shell-look{display:flex;height:36px;width:36px;flex-shrink:0;align-items:center;justify-content:center;border:0;border-radius:8px;background:none;color:var(--muted);transition:color .2s,background .2s}.shell-look:hover{color:rgb(var(--accent));background:var(--soft)}@media (pointer:coarse){.shell-look{min-width:44px}.shell-header .btn-primary,.shell-look{min-height:44px}}.shell-scrolled{box-shadow:0 10px 34px -18px rgba(0,0,0,.35)}html.light .shell-scrolled{box-shadow:0 10px 34px -18px rgba(0,0,0,.12)}.shell-rail{position:fixed;top:var(--shell-nav-h);bottom:0;left:0;z-index:30;width:var(--shell-rail-w);overflow-y:auto;background:var(--nav-bg);border-right:1px solid var(--line)}.shell-rail,.shell-rail a{display:flex;flex-direction:column;align-items:center}.shell-rail a{width:100%;height:calc(94 * var(--shell-u));justify-content:center;gap:calc(7 * var(--shell-u));text-align:center;font-size:max(10px,calc(10.5 * var(--shell-u)));font-weight:500;white-space:nowrap;color:var(--muted);border-radius:calc(10 * var(--shell-u));transition:color .2s,background .2s}.shell-rail a svg{width:calc(22 * var(--shell-u));height:calc(22 * var(--shell-u))}.shell-rail a:hover,.shell-rail a[aria-current]{color:rgb(var(--accent))}.shell-rail a:hover{background:var(--soft)}body.has-shell-rail{padding-left:var(--shell-rail-w)}@media (max-width:1023px){body.has-shell-rail{padding-left:0;padding-bottom:calc(var(--shell-tab-h) + env(safe-area-inset-bottom))}.shell-rail{top:auto;bottom:0;left:0;right:0;width:100%;height:var(--shell-tab-h);flex-direction:row;justify-content:space-around;align-items:flex-start;border-right:0;border-top:1px solid var(--line);padding:0 6px env(safe-area-inset-bottom)}.shell-rail a{height:52px;flex:1 1 0;width:auto;min-width:0;margin:5px 0 0;gap:5px;font-size:9px;border-radius:10px}.shell-rail a svg{width:19px;height:19px}}