.site-header{width:calc(100% - 80px);max-width:1440px;margin:0 auto;min-height:104px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:24px}
.brand{display:inline-flex;align-items:center;min-height:44px;flex-shrink:0}
.brand img{display:block;width:172px;height:auto;transition:opacity .18s ease}
.brand:hover img{opacity:.75}
.tabs{display:flex;gap:36px;counter-reset:nav}
.tab{border:0;background:none;display:inline-flex;align-items:baseline;gap:10px;padding:16px 0;color:var(--muted);font-size:12px;line-height:1.5;position:relative;counter-increment:nav}
.tab::before{content:'0' counter(nav);font:inherit;color:var(--muted)}
.tab.active{color:var(--ink)}.tab.active::after{content:'';position:absolute;bottom:4px;left:0;right:0;height:2px;background:var(--accent)}
.tab:hover{color:var(--accent-ink)}
@media(max-width:900px){.site-header{width:calc(100% - 48px);min-height:90px}.tabs{gap:24px}.brand img{width:147px}}
@media(max-width:600px){.site-header{width:calc(100% - 36px);min-height:84px;gap:18px}.brand img{width:111px}.tabs{gap:17px}.tab{font-size:11px;gap:0}.tab::before{display:none}}
@media(max-width:360px){.brand img{width:102px}}