.header{position:fixed;top:0;z-index:50;width:100%;height:80px;background:rgba(0,0,0,.3);backdrop-filter:blur(8px);border-bottom:2px solid rgba(20,184,166,.2)}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 40px}.brand{color:#fff;font-weight:700;font-size:20px;text-decoration:none}.logo-bar{margin-top:80px;background:rgba(0,0,0,.4);overflow:hidden}.marquee{width:100%;overflow:hidden}.marquee-track{display:flex;align-items:center;width:max-content;gap:40px;padding:12px 0;animation:marquee 20s linear infinite}.logo{height:32px;width:auto;object-fit:contain}@keyframes marquee{0%{transform:translateX(0)}to{transform:translateX(-30%)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.animate-float{animation:float 4s ease-in-out infinite}