/* ===== nav.css — 导航+面包屑+分页（全局加载） ===== */

/* 顶部导航 */
.site-header {
  background-color: #1B4332;
  position: sticky;
  top: 0;
  z-index: 1000;
  -webkit-box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-inner {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  height: 70px;
}

/* Logo */
.logo {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.logo-text {
  color: #E9C46A;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 1px;
}

/* 主导航 */
.main-nav {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.nav-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  list-style: none;
}

.nav-item {
  position: relative;
  margin-left: 30px;
}

.nav-link {
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  display: block;
  -webkit-transition: color 0.3s ease;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #E9C46A;
  -webkit-transition: width 0.3s ease;
  transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #E9C46A;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-icon {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  position: relative;
  -webkit-transition: background-color 0.3s ease;
  transition: background-color 0.3s ease;
}

.menu-icon::before,
.menu-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: #FFFFFF;
  left: 0;
  -webkit-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

.menu-icon::before {
  top: -7px;
}

.menu-icon::after {
  top: 7px;
}

/* 面包屑导航 */
.breadcrumb {
  background-color: #F0F5F2;
  padding: 12px 0;
  border-bottom: 1px solid #D0E0D5;
}

.breadcrumb-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  list-style: none;
  font-size: 14px;
}

.breadcrumb-item {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '/';
  margin: 0 10px;
  color: #999999;
}

.breadcrumb-link {
  color: #1B4332;
}

.breadcrumb-link:hover {
  color: #E9C46A;
}

.breadcrumb-current {
  color: #666666;
}

/* 分页 */
.pagination {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin-top: 40px;
  gap: 6px;
}

.page-item {
  list-style: none;
}

.page-link {
  display: block;
  padding: 8px 14px;
  border: 1px solid #D0E0D5;
  border-radius: 4px;
  color: #333333;
  font-size: 14px;
  -webkit-transition: all 0.3s ease;
  transition: all 0.3s ease;
}

.page-link:hover {
  background-color: #1B4332;
  color: #FFFFFF;
  border-color: #1B4332;
}

.page-link.current {
  background-color: #1B4332;
  color: #FFFFFF;
  border-color: #1B4332;
}

/* 返回顶部 */
.back-to-top {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 44px;
  height: 44px;
  background-color: #1B4332;
  color: #FFFFFF;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  font-size: 18px;
  z-index: 999;
  -webkit-transition: background-color 0.3s ease;
  transition: background-color 0.3s ease;
}

.back-to-top:hover {
  background-color: #E9C46A;
}

.back-to-top.show {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
}

/* 响应式导航 */
@media (max-width: 1024px) {
  .nav-item {
    margin-left: 18px;
  }
  
  .nav-link {
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: #0F2E22;
    max-height: 0;
    overflow: hidden;
    -webkit-transition: max-height 0.3s ease;
    transition: max-height 0.3s ease;
  }
  
  .main-nav.open {
    max-height: 500px;
    border-top: 1px solid rgba(233,196,106,0.2);
  }
  
  .nav-list {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    padding: 10px 20px;
  }
  
  .nav-item {
    margin: 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  
  .nav-link {
    padding: 12px 0;
    font-size: 15px;
  }
  
  .nav-link::after {
    display: none;
  }
  
  .header-inner {
    height: 60px;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 38px;
    height: 38px;
  }
}