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.header{z-index:1000;background:linear-gradient(90deg,#ffb300,#ffc83d);position:sticky;top:0;box-shadow:0 4px 16px #0000001f}.header-container{grid-template-columns:auto 1fr auto;align-items:center;gap:24px;max-width:1300px;margin:auto;padding:14px 20px;display:grid}.header-brand{color:#000;font-size:18px;font-weight:600;text-decoration:none}.header-brand strong{font-weight:900}.header-nav{justify-content:center;gap:26px;display:flex}.header-nav a{color:#000;font-weight:600;text-decoration:none;position:relative}.header-nav a:after{content:"";background:#000;width:0;height:2px;transition:all .3s;position:absolute;bottom:-4px;left:0}.header-nav a:hover:after{width:100%}.header-btn{color:#fff;background:#000;border-radius:10px;padding:10px 26px;font-weight:800;text-decoration:none}.header-toggle{cursor:pointer;background:0 0;border:none;font-size:26px;display:none}.mobile-menu{display:none}@media (max-width:768px){.header-container{grid-template-columns:auto auto}.header-nav,.header-btn{display:none}.header-toggle{display:block}.mobile-menu{background:linear-gradient(#ffb300,#ffc83d);flex-direction:column;gap:14px;padding:18px 20px 24px;display:flex}.mobile-menu a{color:#000;font-size:18px;font-weight:700;text-decoration:none}.mobile-btn{text-align:center;background:#000;border-radius:10px;margin-top:10px;padding:14px;font-weight:900;color:#fff!important}}
.floating-contact{z-index:999;flex-direction:column;gap:14px;display:flex;position:fixed;top:50%;right:18px;transform:translateY(-50%)}.fc-circle{border-radius:50%;justify-content:center;align-items:center;width:54px;height:54px;text-decoration:none;transition:transform .2s,box-shadow .2s;display:flex;box-shadow:0 8px 18px #00000040}.fc-circle.zalo{background:#0068ff}.fc-circle.phone{background:#22c55e}.fc-circle:hover{transform:scale(1.08);box-shadow:0 12px 26px #00000059}@media (max-width:768px){.floating-contact{right:12px}.fc-circle{width:50px;height:50px}}