.site-header { position: sticky; top: 0; z-index: 100; background-color: rgba(26, 26, 26, 0.9); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(212, 175, 55, 0.08); transition: box-shadow 0.3s ease; }
.site-header.scrolled { box-shadow: 0 4px 40px rgba(0, 0, 0, 0.4); }
.site-header .header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; max-width: 1200px; margin: 0 auto; }
.site-header .logo { display: flex; align-items: center; gap: 12px; }
.site-header .logo .logo-icon { width: 42px; height: 42px; flex-shrink: 0; }
.site-header .logo .logo-text { font-size: 18px; font-weight: 800; color: #ffffff; letter-spacing: -0.5px; }
.site-header .logo .logo-text .logo-domain { font-size: 10px; font-weight: 500; color: rgba(212, 175, 55, 0.6); display: block; letter-spacing: 2px; text-transform: uppercase; line-height: 14px; }
.site-header .nav-toggle { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.site-header .nav-toggle .nav-toggle-bar { display: block; width: 22px; height: 2px; background-color: #d4af37; border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.site-header .nav-toggle.active .nav-toggle-bar:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.site-header .nav-toggle.active .nav-toggle-bar:nth-child(2) { opacity: 0; }
.site-header .nav-toggle.active .nav-toggle-bar:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.site-header .nav-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background-color: rgba(26, 26, 26, 0.98); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(212, 175, 55, 0.08); box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5); padding: 16px 20px; }
.site-header .nav-menu.open { display: block; }
.site-header .nav-menu .nav-list { display: flex; flex-direction: column; gap: 0; }
.site-header .nav-menu .nav-list .nav-item { padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.04); }
.site-header .nav-menu .nav-list .nav-item:last-child { border-bottom: none; }
.site-header .nav-menu .nav-list .nav-item .nav-link { font-size: 15px; font-weight: 600; color: rgba(255, 255, 255, 0.7); letter-spacing: 0.5px; transition: color 0.25s ease; }
.site-header .nav-menu .nav-list .nav-item .nav-link:hover { color: #d4af37; }
@media (min-width: 768px) {
  .site-header .header-inner { padding: 16px 40px; }
}
@media (min-width: 1024px) {
  .site-header .nav-toggle { display: none; }
  .site-header .nav-menu { display: flex; position: static; background-color: rgba(0, 0, 0, 0); backdrop-filter: none; -webkit-backdrop-filter: none; border-bottom: none; box-shadow: none; padding: 0; }
  .site-header .nav-menu .nav-list { flex-direction: row; gap: 28px; align-items: center; }
  .site-header .nav-menu .nav-list .nav-item { padding: 0; border-bottom: none; }
  .site-header .nav-menu .nav-list .nav-item .nav-link { font-size: 13px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; position: relative; }
  .site-header .nav-menu .nav-list .nav-item .nav-link::after { content: ""; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: linear-gradient(90deg, #c8102e, #d4af37); border-radius: 2px; transition: width 0.3s ease; }
  .site-header .nav-menu .nav-list .nav-item .nav-link:hover::after { width: 100%; }
  .site-header .nav-menu .nav-list .nav-item .nav-link.nav-cta { color: #ffffff; background: linear-gradient(135deg, #c8102e, #a00d24); padding: 10px 22px; border-radius: 4px; letter-spacing: 0.5px; }
  .site-header .nav-menu .nav-list .nav-item .nav-link.nav-cta::after { display: none; }
  .site-header .nav-menu .nav-list .nav-item .nav-link.nav-cta:hover { box-shadow: 0 4px 20px rgba(200, 16, 46, 0.4); }
}