/* ==========================================================================
   KOUKE Layout Styles - Header & Footer
   ========================================================================== */

/* ==========================================================================
   HEADER COMPONENT
   ========================================================================== */

/* Visually Hidden Utility */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Header Container */
.site-header {
  background: var(--color-bg-surface);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Header Hidden State */
.site-header.header-hidden {
  transform: translateY(-100%);
}

/* ========== Top Bar (First Layer) ========== */
.header-top {
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
}

.header-top-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  position: relative;
}

/* Logo Section */
.header-logo {
  flex-shrink: 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.header-logo a {
  display: block;
  line-height: 0;
}

.header-logo img {
  height: 38px;
  width: auto;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-left: auto;
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 20px;
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition-base);
}

.action-btn:hover,
.action-btn:focus {
  background: var(--color-primary-alpha);
  color: var(--color-primary-hover);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--color-text-main);
  font-size: 22px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus {
  background: var(--color-primary-alpha);
  color: var(--color-primary);
}

/* ========== Bottom Bar (Second Layer) ========== */
.header-bottom {
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-bottom-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Main Navigation */
.header-nav {
  display: flex;
  flex: 1;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.nav-item {
  position: relative;
}

/* Ensure mega menu is positioned relative to this item */
.nav-item--categories {
  position: relative;
}

/* ==========================================================================
   MEGA MENU COMPONENT
   ========================================================================== */

/* Mega Menu Wrapper - 扩大hover区域 */
.mega-menu-wrapper {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100vw;
  padding-top: 8px;
  z-index: 998;
  pointer-events: none;
  visibility: hidden;
  will-change: left, width;
}

/* 纯 CSS hover 控制显隐 */
.nav-item--categories:hover .mega-menu-wrapper,
.nav-item--categories:focus-within .mega-menu-wrapper {
  pointer-events: auto;
  visibility: visible;
}

.nav-item--categories:hover .mega-menu,
.nav-item--categories:focus-within .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Mega Menu Panel */
.mega-menu {
  position: relative;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-bg-surface);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  max-height: calc(100vh - 150px);
  overflow-y: auto;
  pointer-events: auto;
}

.mega-menu-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 40px 20px;
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
}

.mega-menu-categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.mega-menu-section {
  display: flex;
  flex-direction: column;
}

.mega-menu-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mega-menu-title i {
  color: var(--color-primary);
  font-size: 18px;
}

.mega-menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mega-menu-list li {
  margin: 0;
}

.mega-menu-list a {
  display: block;
  padding: 8px 12px;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
  position: relative;
}

.mega-menu-list a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mega-menu-list a:hover {
  color: var(--color-primary);
  background: transparent;
}

.mega-menu-list a:hover::after {
  transform: scaleX(1);
}

/* Mega Menu Images */
.mega-menu-images {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mega-menu-image-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mega-menu-image-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.mega-menu-image-link {
  display: block;
  position: relative;
  overflow: hidden;
}

.mega-menu-image-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.mega-menu-image-card:hover img {
  transform: scale(1.05);
}

.mega-menu-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
  padding: 20px;
  display: flex;
  align-items: flex-end;
}

.mega-menu-image-title {
  color: #ffffff;
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
}

/* Mega Menu Responsive */
@media (max-width: 1200px) {
  .mega-menu-container {
    grid-template-columns: 1fr 350px;
    gap: 40px;
  }
  .mega-menu-categories {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
}

@media (max-width: 992px) {
  .mega-menu-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .mega-menu-categories {
    grid-template-columns: repeat(3, 1fr);
  }
  .mega-menu-images {
    flex-direction: row;
  }
  .mega-menu-image-card {
    flex: 1;
  }
}

@media (max-width: 768px) {
  .mega-menu-wrapper {
    display: none;
  }
}

.mega-menu::-webkit-scrollbar {
  width: 8px;
}

.mega-menu::-webkit-scrollbar-track {
  background: var(--color-bg-body);
}

.mega-menu::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-sm);
}

.mega-menu::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  text-decoration: none;
  transition: color 0.3s ease;
  white-space: nowrap;
  position: relative;
}

/* Underline animation for regular nav links (not primary) */
.nav-item:not(.nav-item--categories) .nav-link::after {
  content: '';
  position: absolute;
  bottom: 8px;
  right: var(--space-lg);
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item:not(.nav-item--categories) .nav-link:hover,
.nav-item:not(.nav-item--categories) .nav-link:focus {
  color: var(--color-primary);
}

.nav-item:not(.nav-item--categories) .nav-link:hover::after,
.nav-item:not(.nav-item--categories) .nav-link:focus::after {
  transform: scaleX(1);
}

/* Primary Button Style for Browse All Categories */
.nav-link--primary {
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: var(--font-weight-bold);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background-color 0.3s ease;
}

.nav-link--primary:hover,
.nav-link--primary:focus {
  background: var(--color-primary-hover);
  color: #FFFFFF;
}

.nav-link--primary[aria-expanded="true"] {
  background: var(--color-primary-hover);
  color: #FFFFFF;
}

.nav-link--primary svg {
  width: 14px;
  height: 14px;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* CTA Button Style for Get in Touch */
.header-cta {
  margin-left: var(--space-lg);
  flex-shrink: 0;
}

.nav-link--cta {
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: var(--font-weight-bold);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  display: inline-block;
}

.nav-link--cta:hover,
.nav-link--cta:focus {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-link--cta::after {
  display: none;
}

.nav-link--primary i {
  font-size: 16px;
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  min-width: 200px;
  max-width: 300px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0.3s;
  z-index: 100;
}

.nav-item--categories:hover .dropdown-menu,
.nav-item--categories:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-section {
  width: 100%;
}

.dropdown-title {
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dropdown-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dropdown-list li {
  margin-bottom: 2px;
}

.dropdown-list a {
  display: block;
  padding: 8px 10px;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
  border-radius: var(--radius-sm);
  position: relative;
}

/* Underline animation for dropdown links */
.dropdown-list a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-list a:hover,
.dropdown-list a:focus {
  color: var(--color-primary);
  background: transparent;
}

.dropdown-list a:hover::after,
.dropdown-list a:focus::after {
  transform: scaleX(1);
}

/* Search Overlay */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1001;
  display: none;
  align-items: flex-start;
  padding-top: 100px;
}

.search-overlay[aria-hidden="false"] {
  display: flex;
}

.search-overlay-content {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.search-form {
  width: 100%;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 24px;
  color: var(--color-text-muted);
  font-size: 20px;
}

.search-input {
  width: 100%;
  padding: 20px 64px 20px 64px;
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-lg);
}

.search-input:focus {
  outline: none;
  box-shadow: 0 10px 50px rgba(83, 129, 176, 0.2);
  border: 2px solid var(--color-primary);
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.search-close {
  position: absolute;
  right: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 24px;
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition-base);
}

.search-close:hover,
.search-close:focus {
  background: var(--color-primary-alpha);
  color: var(--color-text-main);
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.mobile-nav[aria-hidden="false"] {
  display: block;
}

.mobile-nav-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
}

.mobile-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav-item {
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-item:last-child {
  border-bottom: none;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  text-decoration: none;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  gap: var(--space-sm);
}

.mobile-nav-link i:first-child {
  font-size: 18px;
  color: var(--color-primary);
}

.mobile-nav-link svg:first-child {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.mobile-nav-toggle {
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-dropdown-arrow {
  font-size: 14px;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-left: auto;
}

.mobile-nav-toggle[aria-expanded="true"] .mobile-dropdown-arrow {
  transform: rotate(180deg);
}

.mobile-dropdown {
  display: none;
  padding: var(--space-sm) 0 var(--space-md) 0;
}

.mobile-dropdown[data-expanded="true"] {
  display: block;
}

.mobile-dropdown-section {
  margin-bottom: var(--space-lg);
}

.mobile-dropdown-section:last-child {
  margin-bottom: 0;
}

.mobile-dropdown-title {
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.mobile-dropdown-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-dropdown-list li {
  margin-bottom: 2px;
}

.mobile-dropdown-list a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
}

.mobile-dropdown-list a:hover,
.mobile-dropdown-list a:focus {
  background: var(--color-primary-alpha);
  color: var(--color-primary);
}

/* Mobile CTA Button */
.mobile-nav-link--cta {
  background: var(--color-primary);
  color: #FFFFFF !important;
  font-weight: var(--font-weight-bold);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-top: 8px;
  text-align: center;
  transition: all 0.3s ease;
}

.mobile-nav-link--cta:hover,
.mobile-nav-link--cta:focus {
  background: var(--color-primary-light);
  color: var(--color-primary) !important;
}

/* ==========================================================================
   FOOTER COMPONENT
   ========================================================================== */

/* Footer */
.site-footer {
  background: #F9F9F9;
  color: var(--color-text-main);
}

/* Footer Main */
.footer-main {
  padding: 80px 0 var(--space-2xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-2xl);
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-title {
  font-family: var(--font-family-heading);
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  margin-bottom: var(--space-sm);
}

.footer-description {
  font-size: var(--text-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Footer Menu */
.footer-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-menu li a {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
  display: inline-block;
}

.footer-menu li a:hover {
  color: var(--color-primary);
}

/* Footer Contact */
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-base);
  color: var(--color-text-muted);
}

.footer-contact li i {
  font-size: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer-contact li a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-contact li a:hover {
  color: var(--color-primary);
}

/* Footer Social */
.footer-social-title {
  font-family: var(--font-family-heading);
  font-size: var(--text-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  margin-top: var(--space-md);
  margin-bottom: var(--space-sm);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: #FFFFFF;
  color: var(--color-primary);
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

.social-link i {
  font-size: 18px;
}

/* Footer Bottom */
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  background: #F9F9F9;
}

.footer-bottom-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copyright {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.footer-logo img {
  height: 32px;
  width: auto;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

/* Tablet and Below */
@media (max-width: 1024px) {
  .header-top-container,
  .header-bottom-container {
    padding: 0 var(--space-md);
  }
  
  .nav-list {
    gap: 0;
  }
  
  .nav-link {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--text-sm);
  }
  
  .nav-link--primary {
    padding: 12px 20px;
  }
  
  .dropdown-menu {
    min-width: 180px;
    max-width: 250px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .header-top {
    padding: 16px 0;
  }
  
  .header-top-container {
    padding: 0 var(--space-md);
  }
  
  .header-logo img {
    height: 32px;
  }
  
  .header-bottom {
    display: none;
  }
  
  .header-cta {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .search-overlay {
    padding-top: 80px;
  }
  
  .search-overlay-content {
    padding: 0 var(--space-md);
  }
  
  .search-input {
    padding: var(--space-md) 56px var(--space-md) 56px;
    font-size: var(--text-base);
  }
  
  .search-icon {
    left: 20px;
    font-size: 18px;
  }
  
  .footer-main {
    padding: 60px 0 var(--space-xl) 0;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-title {
    font-size: var(--text-base);
  }
  
  .footer-description,
  .footer-menu li a,
  .footer-contact li {
    font-size: var(--text-sm);
  }
  
  .footer-bottom {
    padding: var(--space-md) 0;
  }
  
  .footer-bottom-content {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  
  .footer-copyright {
    font-size: var(--text-xs);
  }
  
  .footer-logo img {
    height: 28px;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  .header-top-container {
    padding: 0 var(--space-sm);
  }
  
  .header-logo img {
    height: 28px;
  }
  
  .action-btn,
  .mobile-menu-toggle {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }
  
  .mobile-nav-content {
    padding: var(--space-sm) var(--space-md);
  }
  
  .footer-main {
    padding: 40px 0 var(--space-lg) 0;
  }
  
  .footer-grid {
    gap: var(--space-md);
  }
  
  .footer-social {
    gap: var(--space-xs);
  }
  
  .social-link {
    width: 36px;
    height: 36px;
  }
  
  .social-link i {
    font-size: 16px;
  }
}

/* Focus Management */
@media (prefers-reduced-motion: reduce) {
  .nav-link,
  .nav-link::after,
  .dropdown-list a,
  .action-btn,
  .search-input,
  .search-close,
  .mobile-menu-toggle,
  .mobile-nav-link,
  .mobile-dropdown-list a,
  .mobile-dropdown-arrow {
    transition: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .header-top,
  .header-bottom {
    border-bottom-width: 2px;
  }
  
  .dropdown-menu {
    border-width: 2px;
  }
}

/* ==========================================================================
   Fixed Sidebar & Inquiry Modal (Global Components)
   ========================================================================== */

/* Fixed Sidebar */
.fixed-sidebar {
  position: fixed;
  right: 32px;
  bottom: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  z-index: 100;
}

/* Sidebar Social Links */
.sidebar-social {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background: #FFFFFF;
  border-radius: var(--radius-full);
  padding: var(--space-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sidebar-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  text-decoration: none;
  transition: all 0.3s ease;
}

.sidebar-social-link:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: scale(1.1);
}

.sidebar-social-link i {
  font-size: 20px;
}

/* Back to Top Button */
.back-to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: #FFFFFF;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(83, 129, 176, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-hover);
  transform: translateY(-4px);
  box-shadow: 0 6px 16px rgba(83, 129, 176, 0.4);
}

.back-to-top i {
  font-size: 20px;
}

/* Responsive Design for Fixed Sidebar */
@media (max-width: 768px) {
  .fixed-sidebar {
    right: 20px;
    bottom: 20px;
    gap: var(--space-sm);
  }
  
  .sidebar-social {
    padding: 8px;
    gap: 8px;
  }
  
  .sidebar-social-link {
    width: 40px;
    height: 40px;
  }
  
  .sidebar-social-link i {
    font-size: 18px;
  }
  
  .back-to-top {
    width: 50px;
    height: 50px;
  }
  
  .back-to-top i {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .fixed-sidebar {
    right: 16px;
    bottom: 16px;
  }
  
  .sidebar-social-link {
    width: 36px;
    height: 36px;
  }
  
  .sidebar-social-link i {
    font-size: 16px;
  }
  
  .back-to-top {
    width: 46px;
    height: 46px;
  }
  
  .back-to-top i {
    font-size: 16px;
  }
}

/* Inquiry Modal */
.inquiry-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.inquiry-modal.active {
  opacity: 1;
  visibility: visible;
}

.inquiry-modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}

.inquiry-modal-content {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  transform: scale(0.95);
  transition: transform 0.3s ease;
}

.inquiry-modal.active .inquiry-modal-content {
  transform: scale(1);
}

.inquiry-modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 10;
}

.inquiry-modal-close:hover {
  color: var(--color-text-main);
}

.inquiry-modal-close i {
  font-size: 20px;
}

.inquiry-modal-header {
  padding: var(--space-xl) var(--space-xl) var(--space-md);
  text-align: center;
}

.inquiry-modal-title {
  font-family: var(--font-family-heading);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.inquiry-modal-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* Inquiry Form */
.inquiry-form {
  padding: 0 var(--space-xl) var(--space-xl);
}

.inquiry-form-group {
  margin-bottom: var(--space-md);
}

.inquiry-form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.inquiry-form-input,
.inquiry-form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-family-base);
  font-size: var(--text-base);
  color: var(--color-text-main);
  background: #FFFFFF;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.inquiry-form-input:focus,
.inquiry-form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(83, 129, 176, 0.1);
}

.inquiry-form-textarea {
  min-height: 120px;
  resize: vertical;
}

.inquiry-form-submit {
  width: 100%;
  padding: 14px 32px;
  font-family: var(--font-family-base);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: #FFFFFF;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
}

.inquiry-form-submit:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(83, 129, 176, 0.3);
}

/* Responsive Design for Inquiry Modal */
@media (max-width: 768px) {
  .inquiry-modal {
    padding: var(--space-md);
  }
  
  .inquiry-modal-content {
    max-width: 100%;
  }
  
  .inquiry-modal-header {
    padding: var(--space-lg) var(--space-lg) var(--space-md);
  }
  
  .inquiry-form {
    padding: 0 var(--space-lg) var(--space-lg);
  }
}

@media (max-width: 480px) {
  .inquiry-modal {
    padding: var(--space-sm);
  }
  
  .inquiry-modal-header {
    padding: var(--space-md) var(--space-md) var(--space-sm);
  }
  
  .inquiry-modal-title {
    font-size: var(--text-xl);
  }
  
  .inquiry-form {
    padding: 0 var(--space-md) var(--space-md);
  }
  
  .inquiry-form-group {
    margin-bottom: var(--space-sm);
  }
}
/* ==========================================================================
   Hero Section (Global Component)
   ========================================================================== */

/* Hero Section */
.page-hero {
  padding: var(--space-xl) 0;
  background: #F9F9F9;
  position: relative;
}

.hero-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-title {
  font-family: var(--font-family-heading);
  font-size: 24px;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
}

.breadcrumb-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.breadcrumb-link:hover {
  color: var(--color-primary);
}

.breadcrumb-separator {
  color: var(--color-text-muted);
}

.breadcrumb-current {
  color: var(--color-text-main);
  font-weight: var(--font-weight-medium);
}

/* Responsive Design for Hero */
@media (max-width: 768px) {
  .hero-header {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
  
  .hero-title {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 18px;
  }
}


/* ==========================================================================
   Contact Form 7 - Inquiry Modal 补充样式
   ========================================================================== */

/* 提交按钮居中对齐 */
.inquiry-modal .inquiry-form-submit {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 提交按钮图标间距 */
.inquiry-modal .inquiry-form-submit i {
    margin-left: 8px;
}

/* Contact Form 7 默认样式重置 */
.inquiry-modal .wpcf7-form p {
    margin: 0;
}

.inquiry-modal .wpcf7-not-valid-tip {
    font-size: 12px;
    color: #dc2626;
    margin-top: 4px;
}

.inquiry-modal .wpcf7-response-output {
    margin: 16px 0 0 0;
    padding: 12px;
    border-radius: 4px;
    font-size: 14px;
}

.inquiry-modal .wpcf7-validation-errors {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
}

.inquiry-modal .wpcf7-mail-sent-ok {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #16a34a;
}

.inquiry-modal .wpcf7-spinner {
    display: none;
}