.topbar{background:var(--dark);color:#D8E6EF;font-size:13px}.topbar-inner{height:38px;display:flex;justify-content:space-between;align-items:center;gap:18px}.topbar a{color:#fff;font-weight:800}.topbar-left,.topbar-right{display:flex;gap:18px;align-items:center;white-space:nowrap}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(229,231,235,.78)}.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}.logo img{height:46px;width:auto}.main-nav{display:flex;align-items:center;gap:4px}.nav-item{position:relative}.nav-link{display:flex;align-items:center;gap:6px;padding:26px 11px;font-size:14px;font-weight:900;color:#1F3447}.nav-link.active,.nav-link:hover{color:var(--primary-dark)}.has-mega:hover .mega-menu{opacity:1;visibility:visible;transform:translateY(0)}.mega-menu{position:absolute;left:0;top:100%;min-width:560px;background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow);padding:18px;opacity:0;visibility:hidden;transform:translateY(10px);transition:.2s ease}.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.mega-link{display:flex;gap:12px;padding:12px;border-radius:14px}.mega-link:hover{background:var(--primary-soft)}.mega-link b{display:block;color:var(--dark);line-height:1.2}.mega-link span{display:block;color:var(--muted);font-size:13px;margin-top:3px}.header-actions{display:flex;align-items:center;gap:9px}.icon-btn{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--border);background:#fff;border-radius:50%;cursor:pointer;font-weight:900;color:var(--dark)}.icon-btn:hover{border-color:var(--primary);color:var(--primary-dark)}.menu-toggle{display:none}.mobile-panel{display:none}.search-layer{position:fixed;inset:0;background:rgba(7,24,39,.62);z-index:80;opacity:0;visibility:hidden;transition:.2s}.search-layer.open{opacity:1;visibility:visible}.search-box{max-width:720px;margin:14vh auto 0;background:#fff;border-radius:28px;padding:26px;box-shadow:var(--shadow);display:flex;gap:10px}.search-box input{flex:1}.float-contact{position:fixed;right:18px;bottom:24px;display:grid;gap:10px;z-index:45}.float-contact a{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 10px 24px rgba(7,24,39,.18)}.float-phone{background:var(--success)}.float-zalo{background:var(--primary)}.float-quote{background:var(--dark)}
@media(max-width:1180px){.main-nav{display:none}.menu-toggle{display:grid}.header-actions .btn{display:none}.mobile-panel{position:fixed;inset:0 0 auto 0;top:116px;background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow);padding:18px 20px;z-index:49;display:none}.mobile-panel.open{display:block}.mobile-panel a{display:block;padding:13px 0;border-bottom:1px solid #EEF2F6;font-weight:900}.mobile-panel .btn{margin-top:14px;width:100%}.topbar-inner{overflow:hidden}.topbar-right{display:none}}
@media(max-width:720px){.topbar{display:none}.header-inner{height:68px}.mobile-panel{top:68px}.logo img{height:38px}.header-actions .icon-btn:not(.menu-toggle){display:none}.float-contact{right:0;left:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0}.float-contact a{width:auto;height:48px;border-radius:0;font-size:13px}.float-contact a::after{content:attr(aria-label);margin-left:6px}.footer{padding-bottom:60px}}