/* V12: 顶部改为普通黑条 + sticky 白色导航，避免下拉空白和遮挡 */
@media (min-width:769px){.top-bar{display:flex!important;position:relative!important;top:auto!important;left:auto!important;right:auto!important;height:36px!important;background:#111827!important;z-index:1001!important;align-items:center!important;transform:none!important}.navbar{display:block!important;position:sticky!important;top:0!important;left:auto!important;right:auto!important;height:64px!important;background:#fff!important;z-index:1000!important;border-bottom:1px solid #e5e7eb!important}.navbar .container,.navbar-inner{height:100%!important}.page-banner{margin-top:0!important;padding-top:86px!important;padding-bottom:76px!important}.hero-section{padding-top:0!important;margin-top:0!important}body{padding-top:0!important}}
@media(max-width:768px){.top-bar{display:none!important}.navbar{position:sticky!important;top:0!important;height:66px!important}.page-banner{padding-top:54px!important;padding-bottom:54px!important}.hero-section{padding-top:0!important}}