/* ============================================
   广东奥通玻璃科技有限公司 - 布局和导航样式
   ============================================ */

@import url('global.css');

/* ========== 导航栏样式 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 76px;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.6));
  backdrop-filter: blur(18px);
  box-shadow: var(--box-shadow-default);
  z-index: 1000;
  padding: 0 var(--spacing-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
  isolation: isolate;
}

.navbar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.12), rgba(139, 92, 246, 0.08), rgba(245, 158, 11, 0.12));
  opacity: 0.65;
  z-index: -1;
  pointer-events: none;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) 0;
  color: var(--color-primary-dark);
  text-decoration: none;
  white-space: normal;
}

.navbar-brand:hover {
  color: var(--color-primary-dark);
  text-decoration: none;
}

.brand-mark {
  display: none;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.5px;
}

.brand-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-gray);
  letter-spacing: 0.2px;
}

/* ========== 导航菜单 ========== */
.navbar-nav {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
  padding: 0;
  height: 100%;
  flex-wrap: nowrap;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 var(--spacing-sm);
  color: var(--color-text-dark);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-base);
  border-bottom: 2px solid transparent;
  border-radius: var(--border-radius-md);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  border-bottom-color: transparent;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.16), rgba(139, 92, 246, 0.12));
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.12);
  text-decoration: none;
}

/* ========== 下拉菜单 ========== */
.dropdown {
  position: relative;
}

.dropdown-toggle::after {
  content: '▼';
  font-size: 10px;
  margin-left: var(--spacing-xs);
  transition: transform var(--transition-base);
}

.dropdown:hover .dropdown-toggle::after {
  transform: rotate(-180deg);
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--box-shadow-md);
  list-style: none;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  margin-top: 0;
  padding: var(--spacing-sm) 0;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-text-dark);
  text-decoration: none;
  transition: all var(--transition-base);
}

.dropdown-item:hover {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(139, 92, 246, 0.08));
  color: var(--color-primary-dark);
  padding-left: calc(var(--spacing-xl) - 4px);
  text-decoration: none;
}

/* ========== 移动菜单按钮 ========== */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.navbar-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: all var(--transition-base);
  border-radius: var(--border-radius-sm);
}

/* ========== 主要内容区域 ========== */
main {
  margin-top: 76px;
  min-height: calc(100vh - 76px);
}

/* ========== 页面头部 ========== */
.page-header {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 24%, rgba(14, 165, 233, 0.18), transparent 32%),
    radial-gradient(circle at 82% 8%, rgba(139, 92, 246, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(14, 165, 233, 0.9) 0%, rgba(139, 92, 246, 0.85) 45%, rgba(15, 23, 42, 0.9) 100%);
  color: var(--color-text-light);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  margin-bottom: var(--spacing-xl);
  isolation: isolate;
}

.page-header h1 {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-4xl);
}

.page-header p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin-bottom: 0;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0));
  pointer-events: none;
}

.page-header::after {
  content: '';
  position: absolute;
  inset: 12px;
  border-radius: var(--border-radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
  pointer-events: none;
  opacity: 0.6;
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
  display: flex;
  list-style: none;
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  color: var(--color-text-gray);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '/';
  padding: 0 var(--spacing-sm);
  color: var(--color-border);
}

.breadcrumb-item a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--color-text-dark);
}

/* ========== 页脚 ========== */
footer {
  background: linear-gradient(180deg, #0f172a 0%, #0b2342 70%, #08182f 100%);
  color: var(--color-text-light);
  padding: var(--spacing-2xl) var(--spacing-lg) var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(103, 232, 249, 0.16), transparent 35%),
              radial-gradient(circle at 80% 0%, rgba(139, 92, 246, 0.18), transparent 36%);
  opacity: 0.8;
  pointer-events: none;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-section ul {
  list-style: none;
  margin-left: 0;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.8);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer-section a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.footer-divider {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.1);
  margin: var(--spacing-lg) 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-full);
  color: var(--color-text-light);
  text-decoration: none;
  transition: all var(--transition-base);
}

.social-links a:hover {
  background-color: var(--color-accent);
  color: var(--color-text-dark);
  text-decoration: none;
}

/* ========== 响应式导航 ========== */
@media (max-width: 768px) {
  .navbar {
    height: 60px;
    padding: 0 var(--spacing-md);
  }

  .navbar-container {
    padding: 0;
  }

  .navbar-brand {
    padding: var(--spacing-sm) 0;
  }

  .navbar-toggle {
    display: block;
  }

  .navbar-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-text-light);
    border-top: 1px solid var(--color-border);
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    height: auto;
    align-items: flex-start;
  }

  .navbar-nav.active {
    max-height: 500px;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--color-border-light);
  }

  .nav-link {
    display: block;
    height: auto;
    padding: var(--spacing-md);
    border-bottom: none;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background-color: var(--color-background-light);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }

  .dropdown:hover .dropdown-menu {
    max-height: 300px;
  }

  .dropdown-item {
    padding-left: var(--spacing-2xl);
  }

  .page-header {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .page-header h1 {
    font-size: var(--font-size-2xl);
  }

  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }

  .brand-name {
    font-size: var(--font-size-base);
  }

  .brand-tagline {
    font-size: 11px;
  }

  .page-header h1 {
    font-size: var(--font-size-2xl);
  }

  .page-header p {
    font-size: var(--font-size-base);
  }
}