.custom-navbar {
  background-color: rgba(255, 255, 255, 0.98) !important;
  backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(197, 168, 128, 0.2);
  padding: 1.2rem 0;
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  width: 100% !important;
  max-width: 100% !important;
  z-index: 1030;
  transition: all 0.3s ease;
}

.nav-link.custom-link {
  color: var(--dark-charcoal) !important;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  padding: 0.5rem 1rem !important;
  position: relative;
  transition: color 0.3s ease;
}
.nav-link.custom-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 0.5px;
  bottom: 4px;
  left: 1rem;
  background-color: var(--primary-gold);
  transition: width 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}
.nav-link.custom-link:hover::after {
  width: calc(100% - 2rem);
}
.nav-link.custom-link:hover {
  color: var(--dark-charcoal) !important;
}

.dropdown-toggle::after {
  display: none !important;
}

.custom-dropdown {
  border: none !important;
  background-color: rgba(255, 255, 255, 0.98) !important;
  box-shadow: 0 15px 35px rgba(0,0,0,0.06) !important;
  border-radius: 8px !important;
  padding: 1rem 0 !important;
}
.custom-dropdown .dropdown-item {
  color: var(--dark-charcoal);
  font-size: 0.9rem;
  padding: 0.6rem 1.5rem;
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  background-color: transparent !important;
}
.custom-dropdown .dropdown-item:hover {
  color: var(--primary-gold) !important;
  background-color: transparent !important;
}

/* 電腦版 hover 下拉 */
@media (min-width: 992px) {
  .nav-item.dropdown .dropdown-menu {
    display: block;
    visibility: hidden;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.25, 1, 0.5, 1), visibility 0.5s;
    margin-top: 0;
    pointer-events: none;
  }
  .nav-item.dropdown:hover > .dropdown-menu {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-item.dropdown .dropdown-toggle::after {
    pointer-events: none;
  }
}

/* 手機版導覽列調整 */
@media (max-width: 991.98px) {
  .custom-navbar { padding: 1rem 0; }
  .custom-navbar .container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    position: relative;
    width: 100%;
  }
  .navbar-brand {
    position: static !important;
    transform: none !important;
    margin: 0 auto !important;
    padding: 0;
    display: flex !important;
    justify-content: center;
    align-items: center;
  }
  #mobileMenuBtn {
    width: 35px;
    text-align: left;
    background: none;
    box-shadow: none;
    border: none;
    padding: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: flex-start;
  }
  .mobile-spacer {
    width: 35px;
    height: 1px;
    display: block !important;
  }
  .navbar-collapse {
    display: none !important;
  }
}
@media (min-width: 992px) {
  .mobile-spacer {
    display: none !important;
  }
}