/* Common Header Styles — 与公用 header 保持一致：透明背景 + 深色文字 */
.site-header {
  background: transparent;
  color: #111827;
  width: 100%;
}
.site-header .header-inner,
.site-header {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 50px;
  box-sizing: border-box;
}
.site-header .logo {
  font-size: 26px;
  font-weight: 800;
  text-decoration: none;
  color: #2563eb;
  letter-spacing: -0.4px;
}
.site-header .logo span {
  color: #ff6a00;
  font-weight: 800;
}
.site-header .logo .logo-char { display: inline-block; line-height: 1; }
.site-header .logo .logo-highlight {
  color: #ff6a00;
  font-weight: 800;
  text-shadow: 0 2px 6px rgba(255,106,0,0.08);
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 25px;
}
.site-header nav a {
  color: #374151;
  text-decoration: none;
  font-size: 15px;
  transition: color 0.18s ease;
}
.site-header nav a:hover {
  color: #6c63ff;
}
.site-header nav a.active {
  color: #6c63ff;
  font-weight: 600;
}
.site-header .auth-buttons {
  display: flex;
  gap: 10px;
}
.site-header .btn-login {
  background: transparent;
  border: 1px solid #d1d5db;
  color: #374151;
  padding: 8px 20px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
}
.site-header .btn-login:hover {
  background: rgba(16,24,40,0.04);
}
.site-header .btn-signup {
  background: #6c63ff;
  color: #fff;
  padding: 8px 20px;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.site-header .btn-signup:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}
.site-header .user-menu {
  position: relative;
}
.site-header .user-btn {
  background: rgba(15,23,42,0.06);
  border: none;
  color: #0f172a;
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}
.site-header .user-btn:hover {
  background: rgba(15,23,42,0.09);
}
.site-header .dropdown-menu {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 10px;
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.15);
  min-width: 180px;
  display: none;
  z-index: 1000;
  overflow: hidden;
}
.site-header .dropdown-menu.show {
  display: block;
}
.site-header .dropdown-menu a {
  display: block;
  padding: 12px 20px;
  color: #333;
  text-decoration: none;
  font-size: 14px;
}
.site-header .dropdown-menu a:hover {
  background: #f5f5f5;
}
.site-header .dropdown-menu .divider {
  border-top: 1px solid #eee;
  margin: 5px 0;
}