*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
  color: #333;
  min-height: 100vh;
  text-rendering: optimizeSpeed;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

a {
  color: #333;
  text-decoration: none;
}

img {
  max-width: 100%;
}

/* 顶部栏样式 */
.top-bar {
  background-color: #f4f4f4;
  color: white;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: #333;
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }
}

.top-links a {
  text-decoration: none;
  margin-left: 1rem;
  transition: color 0.3s;
}

/* .top-links a:hover {
  color: white;
} */

/* 中间栏样式 */
.middle-bar {
  padding: 1rem 0;
  border-bottom: 1px solid #eee;
}

.search-box {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
}

.search-box input {
  border-radius: 20px;
  padding-right: 40px;
  border: 1px solid #ddd;
}

.search-box .search-btn {
  background: none;
  border: none;
  width: 40px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  right: 0;
  top: 0;
  color: #777;
}

.mobile-buttons {
  display: none;
}

.pc-phone-info {
  font-size: 1.3rem;
}

.pc-phone-info i {
  margin-right: 6px;
}

@media (max-width: 992px) {
  .pc-phone-info {
    display: none;
  }
}

/* 导航栏样式 */
.nav-bar {
  background-color: #35498e;
  padding: 0;
}

.navbar-nav {
  width: 100%;
  justify-content: space-between;
}

.navbar-nav .nav-link {
  color: white;
  padding: 0.8rem 1rem !important;
  position: relative;
  text-align: center;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  background-color: #1b6d8c;
  background-color: #5a6cae;
  color: white;
}

.navbar-nav .nav-link-box {
  display: flex;
  flex-direction: column;
}

/* 下拉菜单样式 */
.dropdown-menu {
  border-radius: 0;
  border: none;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  margin-top: 0;
  display: block;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
}

.dropdown:hover>.dropdown-menu,
.dropdown-submenu:hover>.dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.dropdown-menu-end {
  right: 0;
  left: auto;
}

.dropdown-item {
  padding: 0.5rem 1.5rem;
  transition: all 0.2s;
}

.dropdown-item:hover {
  background-color: #f8f9fa;
}

/* 三级下拉菜单样式 */
.dropdown-submenu {
  position: relative;
}

.dropdown-submenu>.dropdown-menu {
  top: 0;
  left: 100%;
  margin-left: 0;
  margin-right: 0;
}

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

/* 移动端样式 */
@media (max-width: 992px) {
  .desktop-search {
    display: none !important;
  }

  .mobile-buttons {
    display: flex;
    align-items: center;
  }

  .nav-bar {
    display: none;
  }

  /* 移动端侧边导航 */
  .offcanvas {
    max-width: 80%;
    transition: transform 0.3s ease-out;
  }

  .mobile-search-container {
    padding: 1rem;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  .mobile-search {
    display: block;
    width: 100%;
  }

  /* 移动端菜单项 */
  .mobile-menu-item {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid #eee;
  }

  .mobile-submenu {
    padding-left: 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .mobile-submenu.show {
    max-height: 1000px;
  }

  .mobile-submenu-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
  }

  .mobile-submenu-toggle:after {
    content: "+";
    font-size: 1.2rem;
    transition: transform 0.3s;
  }

  .mobile-submenu-toggle[aria-expanded="true"]:after {
    transform: rotate(45deg);
  }
}

/* 品牌logo样式 */
.brand-logo {
  height: 50px;
  width: auto;
}

/* 移动端搜索侧边栏 */
.offcanvas-search {
  height: auto !important;
}

/* 移动端菜单样式 */
.mobile-menu {
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background: white;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1050;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
  overflow-y: auto;
}

.mobile-menu.show {
  transform: translateX(0);
}

.menu-header {
  padding: 1rem;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.menu-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #35498e;
}

/*.menu-items {*/
/*  list-style: none;*/
/*  padding: 0;*/
/*  margin: 0;*/
/*}*/

/*.menu-item {*/
/*  border-bottom: 1px solid #eee;*/
/*}*/

/*.menu-link-wrapper {*/
/*  display: flex;*/
/*  align-items: center;*/
/*  justify-content: space-between;*/
/*  padding: 1rem;*/
/*}*/

/*.menu-link {*/
/*  display: flex;*/
/*  justify-content: space-between;*/
/*  align-items: center;*/
/*  padding: 1rem;*/
/*  color: #35498e;*/
/*  text-decoration: none;*/
/*  font-weight: 500;*/
/*}*/

/*.menu-link-wrapper .menu-link {*/
/*  padding: 0;*/
/*}*/

/*.menu-link i {*/
/*  transition: transform 0.3s;*/
/*}*/

/*.menu-link.collapsed i {*/
/*  transform: rotate(0deg);*/
/*}*/

/*.menu-link:not(.collapsed) i {*/
/*  transform: rotate(45deg);*/
/*}*/

/*.submenu {*/
/*  list-style: none;*/
/*  padding: 0;*/
/*  margin: 0;*/
/*  max-height: 0;*/
/*  overflow: hidden;*/
/*  transition: max-height 0.3s ease;*/
/*}*/

/*.submenu.show {*/
/*  max-height: 1000px;*/
/*}*/

/*.submenu-item {*/
/*  padding: 0.8rem 1rem 0.8rem 2rem;*/
/*  border-bottom: 1px solid #f5f5f5;*/
/*}*/

/*.submenu-link {*/
/*  color: #666;*/
/*  text-decoration: none;*/
/*  display: block;*/
/*}*/





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

.menu-item {
  border-bottom: 1px solid #eee;
}

.menu-link-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
}

.menu-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  color: #35498e;
  text-decoration: none;
  font-weight: 500;
}

.menu-link-wrapper .menu-link {
  padding: 0;
}

/* 二级菜单样式 */
.submenu {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background-color: #f8f9fa;
}

.submenu.show {
  max-height: 1000px;
}

.submenu-item {
  border-bottom: 1px solid #e9ecef;
}

.submenu-link-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1rem 0.8rem 2rem;
}

.submenu-link {
  color: #495057;
  text-decoration: none;
  display: block;
  flex: 1;
  padding: 0.8rem 1rem 0.8rem 2rem;
}

.submenu-link-wrapper .submenu-link {
  padding: 0;
}

/* 三级菜单样式 - 可以复用二级菜单的样式类名但需要区分 */
.submenu-level3 {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  background-color: #f1f3f5;
}

.submenu-level3.show {
  max-height: 1000px;
}

.submenu-level3-item {
  padding: 0.6rem 1rem 0.6rem 3rem;
  border-bottom: 1px solid #e9ecef;
}

.submenu-level3-link {
  color: #6c757d;
  text-decoration: none;
  display: block;
  font-size: 0.9em;
}

/* 图标旋转效果 */
.toggle-submenu,
.toggle-submenu-level2 {
  cursor: pointer;
  padding: 8px;
  transition: transform 0.3s;
  font-size: 12px;
  color: #6c757d;
}

.toggle-submenu.fa-minus,
.toggle-submenu-level2.fa-minus {
  transform: rotate(0deg);
}

/* 移除原有的menu-link图标相关样式冲突 */
.menu-link i {
  transition: transform 0.3s;
}





.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s;
}

.menu-overlay.show {
  opacity: 1;
  visibility: visible;
}


/* 首页轮播图 */
.index-slider {
  overflow: hidden;
}

.index-slider .swiper-container {
  width: 100%;
  /* height: 500px; */
  position: relative;
}

.index-slider .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  color: white;
  font-size: 24px;
  font-weight: bold;
  position: relative;
}

.index-slider .swiper-slide img {
  width: 100%;
}

.index-slider .swiper-slide::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
}

.index-slider index-slider.slide-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
}

.index-slider .slide-content h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: #fff;
}

.index-slider .slide-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: #eee;
}

.index-slider .slide-content .btn {
  display: inline-block;
  padding: 12px 30px;
  background-color: #35498e;
  color: white;
  text-decoration: none;
  border-radius: 4px;
  font-weight: bold;
  transition: background-color 0.3s;
}

.index-slider .slide-content .btn:hover {
  background-color: #2980b9;
}

/* 自定义分页样式 */
.index-slider .swiper-pagination {
  position: absolute;
  bottom: 20px;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  z-index: 10;
}

.index-slider .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  margin: 0 8px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s;
}

.index-slider .swiper-pagination-bullet-active {
  background-color: #fff;
  transform: scale(1.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .index-slider .slide-content h2 {
    font-size: 1.8rem;
  }

  .index-slider .slide-content p {
    font-size: 1rem;
  }
}

.section-space {
  padding: 80px 0;
}

/* 首页热门关键词 */
.index-hot-keyword {
  padding: 15px;
  background: rgba(0, 0, 0, 0.52);
}

.hot-keyword-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
}

.hot-keyword-list li a {
  color: #fff;
}


/* 首页产品栏目 */
.product-categories {
  width: 100%;
  overflow: hidden;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  color: #2c3e50;
  margin-bottom: 2rem;
  font-weight: 600;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: #35498e;
  margin: 15px auto;
  border-radius: 2px;
}

.product-categories .swiper-slide {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  height: auto;
}

.product-categories .swiper-slide:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.product-categories .product-image {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.product-categories .product-image img {
  width: 100%;
  transition: transform 0.5s ease;
}

.product-categories .swiper-slide:hover .product-image img {
  transform: scale(1.05);
}

.product-categories .product-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-categories .product-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 12px;
  line-height: 1.4;
  min-height: 50px;
}

.product-categories .product-description {
  color: #7f8c8d;
  font-size: 0.9rem;
  margin-bottom: 20px;
  line-height: 1.5;
  flex-grow: 1;
}

.product-categories .product-link {
  display: inline-block;
  padding: 10px 20px;
  background: linear-gradient(135deg, #35498e, #2980b9);
  background: #35498e;
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  text-align: center;
  transition: all 0.3s ease;
  margin-top: auto;
}

.product-categories .product-link:hover {
  background: linear-gradient(135deg, #2980b9, #35498e);
  background: #5a6cae;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

/* 自定义导航按钮 */
.product-categories .swiper-button-next,
.product-categories .swiper-button-prev {
  color: #35498e;
  background: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.product-categories .swiper-button-next:hover,
.product-categories .swiper-button-prev:hover {
  background: #35498e;
  color: white;
}

.product-categories .swiper-button-next::after,
.product-categories .swiper-button-prev::after {
  font-size: 18px;
  font-weight: bold;
}

/* 自定义分页样式 */
/* .product-categories .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: #bdc3c7;
  opacity: 1;
  transition: all 0.3s ease;
}

.product-categories .swiper-pagination-bullet-active {
  background: #35498e;
  transform: scale(1.2);
} */

/* 响应式设计 */
@media (max-width: 768px) {
  .section-title {
    font-size: 1.5rem;
  }

  .product-categories .product-title {
    font-size: 1rem;
    min-height: auto;
  }

  .product-categories .swiper-button-next,
  .product-categories .swiper-button-prev {
    display: none;
  }
}


/*  */
.category-nav {
  margin-bottom: 20px;
}

.category-item {
  padding: 12px 20px;
  margin: 0 5px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
  font-weight: 500;
  display: inline-block;
}

.category-item:hover,
.category-item.active {
  background: linear-gradient(135deg, #35498e, #2980b9);
  background: #35498e;
  color: #fff;
  /* transform: translateY(-2px); */
  /* box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15); */
}

/* .product-content {
  background-color: #f8f9fa;
  border-radius: 10px;
  padding: 25px;
  min-height: 300px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
} */

.product-list {
  display: none;
}

.product-list.active {
  display: block;
  animation: fadeIn 0.5s;
}

.product-item {
  background: white;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.product-item:hover {
  transform: translateX(5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.product-item h5 {
  font-weight: 400;
  font-size: 16px;
}

.product-item p.text-muted {
  font-size: 14px;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.category-scroll {
  overflow-x: auto;
  white-space: nowrap;
}

/* 自定义滚动条 */
.category-scroll::-webkit-scrollbar {
  height: 8px;
}

.category-scroll::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

.category-scroll::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 10px;
}

.category-scroll::-webkit-scrollbar-thumb:hover {
  background: #555;
}


/* 首页文章板块 */
.category-tabs {
  border-bottom: 2px solid #dee2e6;
  margin-bottom: 20px;
}

.category-tab {
  padding: 10px 20px;
  cursor: pointer;
  border: none;
  background: transparent;
  font-weight: 500;
  color: #6c757d;
  transition: all 0.3s;
  position: relative;
}

.category-tab.active {
  color: #35498e;
  font-weight: 600;
}

.category-tab.active:after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #35498e;
  border-radius: 3px 3px 0 0;
}

.category-tab:hover {
  color: #35498e;
}

.article-list-wrap {
  flex: 1;
}

.article-list {
  display: none;
}

.article-list.active {
  display: block;
  animation: fadeIn 0.5s;
}

.article-item {
  display: flex;
  margin-bottom: 25px;
  padding: 15px;
  background: white;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.article-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.article-thumb {
  flex: 0 0 180px;
  margin-right: 20px;
  border-radius: 6px;
  overflow: hidden;
}

.article-thumb img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  transition: transform 0.5s;
}

.article-item:hover .article-thumb img {
  transform: scale(1.05);
}

.article-content {
  width: calc(100% - 200px);
}

@media (max-width: 768px) {
  .article-content {
    width: 100%;
  }
}

.article-title {
  font-weight: 600;
  margin-bottom: 10px;
  color: #2c3e50;
  transition: color 0.3s;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-title:hover {
  color: #35498e;
}

.article-excerpt {
  color: #6c757d;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  display: box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.article-meta {
  color: #868e96;
  font-size: 0.85rem;
}

.read-more {
  color: #35498e;
  font-weight: 500;
  text-decoration: none;
  font-size: 0.9rem;
  display: inline-block;
  margin-top: 5px;
}

.read-more:hover {
  text-decoration: underline;
}

.focus-news {
  height: calc(100% - 25px);
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.focus-image {
  position: relative;
  overflow: hidden;
}

.focus-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.focus-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: #e74c3c;
  color: white;
  padding: 5px 12px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.9rem;
}

.focus-content {
  padding: 20px;
}

.focus-title {
  font-weight: 700;
  margin-bottom: 15px;
  color: #2c3e50;
  font-size: 1.2rem;
  display: -webkit-box;
  display: box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.focus-desc {
  color: #6c757d;
  margin-bottom: 20px;
  line-height: 1.6;
  display: -webkit-box;
  display: box;
  -webkit-line-clamp: 7;
  line-clamp: 7;
  -webkit-box-orient: vertical;
  box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.promo-tag {
  display: inline-block;
  background: linear-gradient(135deg, #ff7e5f, #feb47b);
  color: white;
  padding: 8px 15px;
  border-radius: 30px;
  font-weight: 600;
  margin-bottom: 15px;
  font-size: 0.9rem;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@media (max-width: 992px) {
  .article-thumb {
    flex: 0 0 140px;
  }
  
  .focus-image img {
    width: 100%;
    height: auto;
  }
}

@media (max-width: 768px) {
  .focus-news {
    height: 100%;
  }

  .article-item {
    flex-direction: column;
  }

  .article-thumb {
    flex: 0 0 auto;
    margin-right: 0;
    margin-bottom: 15px;
  }
  
  .article-thumb img {
    width: 100%;
    height: auto;
  }
}

/* 首页关于我们 */
.contact-section-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 20px;
}

.contact-section-item-icon {
  width: 50px;
  height: 50px;
  border: solid 2px #333;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: 333;
  font-size: 1.2rem;
}

.contact-section-item-cont,
contact-section-item-cont a {
  font-size: 1.1rem;
  color: #333;
}

.learn-more-box {
  display: flex;
  justify-content: center;
}

.learn-more-link {
  display: inline-block;
  padding: 10px 30px;
  transition: all 0.3s linear;
  text-align: center;
  color: #fff;
  background: #35498e;
  margin: 50px auto 0;
}


/* footer板块 */
footer {
  /* background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%); */
  background: #35498e;
  color: #fff;
  padding: 50px 0 0;
}

.footer-title {
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #5a6cae;
  display: inline-block;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
  display: block;
}

.footer-links a:hover {
  /*color: #35498e;*/
  transform: translateX(5px);
}

.contact-info {
  margin-bottom: 15px;
  display: flex;
  align-items: flex-start;
}

.contact-icon {
  margin-right: 10px;
  color: #5a6cae;
  min-width: 20px;
}

.social-icons {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
}

.social-icon:hover {
  background: #35498e;
  transform: translateY(-3px);
}

.copyright {
  background: rgba(0, 0, 0, 0.2);
  padding: 20px 0;
  margin-top: 40px;
  text-align: center;
  font-size: 0.9rem;
  color: #95a5a6;
}

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin: 30px 0;
}

.footer-section {
  margin-bottom: 30px;
}

@media (max-width: 992px) {
  .footer-section {
    margin-bottom: 40px;
  }
}


/* 产品列表页 */
.breadcrumb {
  padding: 40px 0;
  margin-bottom: 0;
  font-size: 1rem;
}

.breadcrumb a {
  color: #333;
  text-decoration: none;
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: #35498e;
  text-decoration: underline;
}

.breadcrumb .separator {
  margin: 0 10px;
  color: #333;
}

.page-product {
  padding-bottom: 80px;
}

.page-title {
  color: #2c3e50;
  margin-bottom: 25px;
  padding-bottom: 15px;
  border-bottom: 2px solid #35498e;
  font-weight: 700;
}

.product-table {
  min-width: 992px;
  min-width: 960px;
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 30px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.product-table th {
  /* background: linear-gradient(135deg, #2c3e50 0%, #35498e 100%); */
  background-color: #35498e;
  color: white;
  padding: 15px;
  text-align: left;
  font-weight: 600;
}

.product-table td {
  padding: 15px;
  border-bottom: 1px solid #dee2e6;
}

.product-table tr:nth-child(even) {
  background-color: #f8f9fa;
}

.product-table tr:hover {
  background-color: #e9f7fe;
  transition: background-color 0.3s;
}

/* .product-table .bncc-id {
  color: #35498e;
  font-weight: 600;
} */

.product-table .service-fee {
  color: #e74c3c;
  font-weight: 600;
}

.view-btn {
  display: inline-block;
  width: 100%;
  /* padding: 8px 15px; */
  color: #333;
  text-decoration: none;
  border-radius: 50px;
  /* font-size: 0.9rem; */
  transition: all 0.3s;
}

/* .view-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 10px rgba(52, 152, 219, 0.4);
} */

.pagination {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 30px;
}

.pagination .page-item {
  margin: 0 5px;
}

.pagination .page-link {
  border-radius: 5px;
  color: #2c3e50;
  border: 1px solid #dee2e6;
  padding: 8px 15px;
  transition: all 0.3s;
}

.pagination .page-link:hover {
  background: #35498e;
  color: white;
  border-color: #35498e;
}

.pagination .active .page-link {
  background: #35498e;
  color: white;
  border-color: #35498e;
}

.table-responsive {
  overflow-x: auto;
}

@media (max-width: 768px) {
  .breadcrumb {
    font-size: 0.9rem;
  }

  .product-table {
    font-size: 0.9rem;
  }

  .product-table th,
  .product-table td {
    padding: 10px;
  }
}

.page-banner img {
  width: 100%;
}

/* 新闻列表页 */
.page-news {
  padding-bottom: 50px;
}

.news-item {
  margin-bottom: 30px;
}

.news-text {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 10px 0;
}

.news-img {
  overflow: hidden;
}

.news-img img {
  transition: all 0.3s linear;
}

.news-img a:hover img {
  transform: scale(1.1);
}

.news-title {
  font-size: 1.2rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 15px;
}

@media (max-width: 768px) {
  .news-title {
    margin-top: 15px;
  }
}

.news-desc,
.news-info {
  color: #666;
}

.news-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
}

.news-divider {
  border-top: solid 1px #666;
  margin-top: 30px;
}

/* 单页 */
.page-about {
  padding-bottom: 80px;
}

/* 左侧信息区域 */
.column-info {
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #35498e;
}

.column-name {
  font-size: 28px;
  font-weight: 500;
  color: #333;
  margin: 0;
  letter-spacing: 1px;
  position: relative;
}

/* 左侧导航菜单 */
.column-nav {
  margin-top: 10px;
}

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

.column-nav li a {
  display: block;
  padding: 8px 0;
  color: #666;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  border-left: 3px solid transparent;
  padding-left: 15px;
  border-bottom: 1px solid rgb(175 175 175 / 25%);
  background: #f6f6f6;
}

.column-nav li a:hover {
  color: #35498e;
  border-left-color: #35498e;
  padding-left: 20px;
}

.column-nav li.active a {
  color: #35498e;
  font-weight: 500;
  border-left-color: #35498e;
  padding-left: 20px;
}

/* 右侧页面标题 */
.page-col-title {
  margin-bottom: 20px;
  border-bottom: 1px solid #dee2e6;
  padding: 10px 0;
  font-size: 1.3rem;
  border-bottom: 2px solid #f0f0f0;
}

.page-content {
  color: #555;
  line-height: 1.8;
  font-size: 16px;
  /*text-indent: 2em;*/
}

.page-content img {
  max-width: 100%;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .column-name {
    font-size: 24px;
  }

  .page-col-title {
    font-size: 26px;
    margin-top: 20px;
  }

  .column-nav li a {
    padding: 6px 0;
    font-size: 15px;
  }

  .page-content {
    font-size: 15px;
  }
}

@media (max-width: 576px) {
  .page-col-title {
    font-size: 24px;
  }

  .column-name {
    font-size: 22px;
  }
}



/*.column-info {*/
/*  color: #35498e;*/
/*  font-size: 22px;*/
/*  padding-bottom: 20px;*/
/*}*/

/*.column-info h3.column-name-cn {*/
/*  font-weight: 400;*/
/*}*/

/*.column-info h5.column-name-en {*/
/*  color: #a9a9a9;*/
/*  font-size: 12px;*/
/*  font-weight: 400;*/
/*}*/

/*.column-nav ul li {*/
/*  background: #f6f6f6;*/
/*  padding-left: 2px;*/
/*}*/

/*.column-nav ul li.active {*/
/*  padding-left: 0;*/
/*  border-left: 2px solid #01afeb;*/
/*}*/

/*.column-nav ul li a {*/
/*  font-size: 14px;*/
/*  color: #545252;*/
/*  padding: 13px 50px 13px 20px;*/
/*  border-bottom: 1px solid rgb(175 175 175 / 25%);*/
/*  position: relative;*/
/*  align-items: center;*/
/*  display: flex;*/
/*}*/

/*.column-nav ul li a:hover {*/
/*  text-decoration: underline;*/
/*}*/

/*.page-col-title {*/
/*  margin-bottom: 20px;*/
/*  border-bottom: 1px solid #dee2e6;*/
/*  padding: 10px 0;*/
/*  font-size: 1.3rem;*/
/*}*/

/*.page-content img {*/
/*  max-width: 100%;*/
/*}*/

/* 产品内页 */
.pro-btn-tabs {
  margin-bottom: 30px;
  border-bottom: 1px solid #dee2e6;
}

.pro-btn-tab {
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s;
  position: relative;
  padding: 6px 20px;
  color: #6c757d;
  font-size: 1.2rem;
  border: none;
  background: none;
}

.pro-btn-tab.active {
  background: #f1f1f1;
}

/* .pro-btn-tab.active:after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: #35498e;
} */

.pro-content-item {
  display: none;
}

.pro-content-item.active {
  display: block;
  animation: fadeIn 0.5s;
}

.pro-content-info {
  margin-bottom: 30px;
}

.pro-content-info ul li {
  line-height: 50px;
  border-bottom: 1px #666 dotted;
}

.sidebar-box {
  margin-bottom: 50px;
}

.sidebar-title {
  border: 1px solid #e1e1e1;
  border-bottom: none;
}

.sidebar-title h3 {
  padding: 10px 12px;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-title span {
  display: inline-block;
  width: 5px;
  height: 14px;
  background: #35498e;
}

.sidebar-box ul.related-list {
  border: 1px solid #e1e1e1;
  padding: 10px;
}

.sidebar-box ul.related-list li {
  display: flex;
  flex-direction: column;
  margin-bottom: 10px;
}

.sidebar-box ul.related-list li a {
  font-size: 14px;
}

.sidebar-box ul.related-list li a:hover {
  color: #35498e;
}

.sidebar-contact-info {
  border: 1px solid #e1e1e1;
  padding: 10px;
}

.sidebar-contact-info p,
.sidebar-contact-info p a {
  font-size: 14px;
}


/* 新闻内页 */
.news-details-tit {
  text-align: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.prev-next-box {
  display: flex;
  flex-wrap: wrap;
  padding-top: 30px;
}

.prev-next-box a {
  width: 50%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .prev-next-box a {
    width: 100%;
  }

  .prev-link {
    margin-bottom: 15px;
  }
}


/* 产品详情 */
.pro-content-tit {
  font-size: 1.3rem;
  font-weight: bold;
  padding-left: 1rem;
  margin: 0 0 30px;
  border-left: 4px solid #1b6d8c;
  border-left: 4px solid #35498e;
}

.ly_product_basic {
  width: 100%;
  height: auto;
}

.ly_product_basic caption {
  width: 100%;
  height: 48px;
  line-height: 48px;
  padding-left: 20px;
  background: #ef4123;
  font-size: 18px;
  color: #fff;
  text-align: left;
}

.ly_product_basic tr {
  border-right: 1px solid #ccc;
}

.ly_product_basic tr:first-child {
  border-top: 1px solid #ccc;
}

.ly_product_basic td {
  /* width: 100%; */
  border-left: 1px solid #ccc;
  font-size: 16px;
  color: #666666;
  border-bottom: 1px solid #ccc;
  height: 48px;
  padding: 10px 20px;
  line-height: 24px;
  text-align: justify;
}

.ly_product_basic td:first-child {
  width: 120px;
  text-align: center;
  min-width: 100px;
  padding: 0;
}

.ly_product_infor {
  width: 100%;
  height: auto;
  margin-top: 33px;
}

.ly_product_infor caption {
  width: 100%;
  height: 48px;
  line-height: 48px;
  padding-left: 20px;
  background: #05b3d2;
  font-size: 18px;
  color: #fff;
  text-align: left;
}

.ly_product_infor tr {
  border-right: 1px solid #ccc;
}

.ly_product_infor th {
  text-align: left;
  border-left: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
  height: 48px;
  /* padding-left: 0.2rem; */
  font-size: 18px;
  color: #666666;
  font-weight: normal;
  background: #f2f2f2;
}

.ly_product_infor .component_z {
  text-align: left;
  padding-left: 20rem;
  width: 33.3%;
}

.ly_product_infor .criterion {
  text-align: center !important;
  width: 33.4%;
}

.ly_product_infor .CAS {
  text-align: center !important;
  width: 33.3%;
}

.ly_product_infor td:first-child {
  text-align: center;
  width: 2rem;
}

.ly_product_infor td {
  border: 1px solid #ccc;
  line-height: 36px;
  padding-left: 20rem;
}

.ly_product_infor .component {
  text-align: left;
  padding-left: 20rem;
}

.ly_product_infor .Uncertainty {
  text-align: center !important;
}

.ly_product_infor .department {
  text-align: center !important;
}

.ly_product_infor .Standard_value {
  text-align: center !important;
}

em {
  color: red;
  font-style: normal;
}

/*.layui-layer-content {
  height: 90%;
}

.layui-layer-iframe iframe {
  height: 100% !important;
}*/


.article-content-box {
  border-top: 1px dashed #dcd1d1;
  border-bottom: 1px dashed #dcd1d1;
  padding: 30px 0;
}

.article-content-tit {
  font-size: 1.3rem;
  font-weight: bold;
  padding-left: 1rem;
  margin: 0 0 30px;
  text-align: center;
}

.page-content,
.article-content-desc {
  font-size: 18px;
  line-height: 35px;
  color: #333;
}

.article-content-desc img {
  max-width: 100%;
}

.article-prev-next {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.article-prev-next a {
  line-height: 1;
  color: #333;
  font-size: 18px;
}


.product-contnet table {
  max-width: 100%!important;
}


/* 技术留言 */
.tech-message-section {
  /*margin-top: 2rem;*/
  /*border-top: 1px solid rgba(0, 0, 0, 0.05);*/
  padding-top: 2rem;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.8rem;
}

.message-header i {
  font-size: 1.8rem;
  color: #35498e;
  background: rgba(53, 73, 142, 0.1);
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.message-header h4 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 600;
  color: #2c3e50;
  letter-spacing: -0.2px;
}

.message-header p {
  margin: 0;
  color: #6c757d;
  font-size: 0.85rem;
  margin-top: 4px;
}

/* 表单样式 - 清爽卡片 */
.message-form-card {
  background: #ffffff;
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03), 0 2px 4px rgba(0, 0, 0, 0.02);
  padding: 1.8rem 2rem 2rem 2rem;
  transition: all 0.2s ease;
  border: 1px solid #eff2f7;
}

.form-group-custom {
  margin-bottom: 1.5rem;
}

.form-group-custom label {
  font-weight: 500;
  color: #2c3e50;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-group-custom label i {
  color: #35498e;
  width: 20px;
}

.form-group-custom .required-star {
  color: #e74c3c;
  font-size: 0.8rem;
  margin-left: 2px;
}

.form-control-clean {
  width: 100%;
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  transition: all 0.2s;
  background-color: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.form-control-clean:focus {
  border-color: #35498e;
  outline: none;
  box-shadow: 0 0 0 3px rgba(53, 73, 142, 0.12);
}

textarea.form-control-clean {
  resize: vertical;
  min-height: 110px;
}

/* 提交按钮 */
.btn-submit-message {
  background: #35498e;
  border: none;
  padding: 0.75rem 1.8rem;
  font-weight: 500;
  border-radius: 40px;
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.25s;
  box-shadow: 0 2px 6px rgba(53, 73, 142, 0.2);
}

.btn-submit-message:hover {
  background: #2a3a7a;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(53, 73, 142, 0.2);
}

.btn-submit-message:active {
  transform: translateY(1px);
}

@media (max-width: 768px) {
  .message-form-card {
    padding: 1.2rem;
  }
}