.navigation-control{text-decoration:none}.site-refined .site-tabs{gap:18px}.site-refined .site-tabs>.navigation-control,.site-refined .site-account .navigation-control{align-items:center;min-height:44px;display:inline-flex}.site-understand{position:relative}.site-understand>summary{cursor:pointer;min-height:44px;color:var(--site-ink);align-items:center;gap:7px;padding:0 4px;font-size:13px;font-weight:600;list-style:none;display:flex}.site-understand>summary::-webkit-details-marker{display:none}.site-understand>summary:after{content:"";border-bottom:1.5px solid;border-right:1.5px solid;width:6px;height:6px;margin-top:-4px;transform:rotate(45deg)}.site-understand[open]>summary:after{margin-top:3px;transform:rotate(225deg)}.site-understand[data-active=true]>summary{color:var(--site-blue)}.site-understand-links{z-index:100;border:1px solid var(--site-line);background:#fff;border-radius:12px;width:240px;padding:8px;display:grid;position:absolute;top:calc(100% + 8px);left:-18px;box-shadow:0 12px 32px #081a3a14}.site-refined .site-tabs .site-understand-links .navigation-control{border-radius:7px;flex-direction:column;gap:3px;min-height:58px;padding:10px 12px;font-size:14px;line-height:1.3;display:flex}.site-understand-links .navigation-control:hover{background:var(--site-surface,#f6f8fc)}.site-understand-links small{color:var(--site-muted);font-size:12px;font-weight:400}.site-understand-links .navigation-control:after{display:none}.site-refined .site-tabs .site-contribute{color:var(--site-muted);font-size:12px;font-weight:500}@media (max-width:1100px){.site-refined .site-header[data-menu-open=true] .site-tabs{grid-template-columns:1fr;gap:2px}.site-refined .site-tabs>.navigation-control,.site-understand>summary{min-height:48px;padding:0 12px;font-size:15px}.site-understand-links{width:100%;box-shadow:none;border:0;border-left:1px solid var(--site-line);border-radius:0;width:calc(100% - 12px);margin-left:12px;padding:0 8px;position:static}.site-refined .site-tabs .site-contribute{border-top:1px solid var(--site-line);margin-top:8px;padding-top:10px;font-size:14px}}