/* 导航栏样式 */
 .navbar {
     padding: 0 20px;
     box-sizing: border-box;
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     z-index: 1000;
     transition: var(--transition);

     background: rgb(197, 172, 151);
     border-bottom: 2px solid rgb(201, 169, 146);
 }

 /* body.home-page header {
     background-color: rgba(188, 144, 111, 0.2);
     box-shadow: none;
     position: fixed;
     top: 0;
     z-index: 100;
     border-bottom: 2px solid rgb(201, 169, 146);
 } */

 /* 导航栏Logo恢复原色 - 首页滚动后 */
 body.home-page header.scrolled {
     background-color: rgb(201, 169, 146);

 }

 .navbar.transparent {
     background-color: transparent;
     box-shadow: none;
 }

 .navbar.transparent .nav-logo {
     color: var(--text-light-color);
 }

 .navbar.transparent .nav-links a {
     color: var(--text-light-color);
 }

 .navbar.transparent .hamburger span {
     background-color: white;
 }

 .navbar-container {
     display: flex;
     justify-content: space-between;
     align-items: center;
     padding: 0 20px;
     height: 10rem;
 }

 /* Logo样式 */
 .nav-logo {
     display: flex;
     align-items: center;
     font-size: 1.8rem;
     font-weight: 700;
     color: var(--primary-color);
     text-decoration: none;
 }

 .nav-logo img {
     /* height: 50px; */
     width: auto;
     margin-right: 10px;
 }

 /* 导航链接 */
 .nav-links {
     display: flex;
     list-style: none;
     align-items: center;
     position: absolute;
     left: 54%;
     transform: translateX(-50%);
     font-size: 2rem;
     height: 100%;
 }

 .nav-links .nav-links-link {
     position: relative;
     padding: 0rem 2.5rem;
     box-sizing: border-box;
     display: flex;
     align-items: center;
 }

 .nav-links .nav-links-link::after {
     content: '';
     position: absolute;
     width: 1px;
     left: 0;
     top: 50%;
     transform: translateY(-50%);
     height: 6rem;
     background-color: var(--primary-color);
     transition: all 0.3s ease;
 }

 .nav-links .nav-links-link:last-child:before {
     content: '';
     position: absolute;
     width: 1px;
     right: 0;
     top: 50%;
     transform: translateY(-50%);
     height: 6rem;
     background-color: var(--primary-color);
     transition: all 0.3s ease;
 }

 .nav-links .nav-links-link {
     height: 100%
 }

 .nav-links li .nav-link {
     height: 100%;
     display: flex;
     align-items: center;
 }

 .nav-links li .nav-link.active::before {
     content: '';
     position: absolute;
     width: 100%;
     bottom: -2px;
     left: 50%;
     transform: translateX(-50%);
     height: 0.3rem;
     background-color: var(--primary-color);
     transition: width 0.3s ease;
 }

 .nav-links a {
     font-family: var(--font-family);
     text-decoration: none;
     color: var(--text-color);
     font-weight: 700;
     display: inline-block;
     transition: var(--transition);
     position: relative;
     letter-spacing: 3px;
     -webkit-font-smoothing: antialiased;
     -moz-osx-font-smoothing: grayscale;
     font-smooth: always;
 }

 .nav-links a:hover,
 .nav-links a.active {
     color: var(--text-active-color);
 }

 .dropdown-menu a.active {
     background-color: rgb(234, 220, 210);

 }

 .dropdown-menu a:hover {
     background-color: rgb(234, 220, 210);
 }

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

 .dropdown-menu {
     position: absolute;
     top: 100%;
     left: 0;
     background-color: rgb(193 167 144);
     min-width: 120px;
     opacity: 0;
     visibility: hidden;
     transform: translateY(10px);
     z-index: 100;
     width: 100%;
 }

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

 .dropdown-menu li {
     width: 100%;
 }

 .dropdown-menu a {
     padding: 3px 0px;
     display: block;
     width: 100%;
     border-bottom: 1px solid #f0f0f0;
     text-align: center;
 }

 .dropdown-menu a:last-child {
     border-bottom: none;
 }

 .dropdown-menu a:hover {
     color: var(--text-active-color);
 }

 /* 中间小logo */
 .nav-center-logo {
     display: flex;
     align-items: center;
 }

 .nav-center-logo img {
     height: 40px;
     width: auto;
     filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
 }

 /* 移动端汉堡菜单 */
 .hamburger {
     display: none;
     cursor: pointer;
     background: none;
     border: none;
     width: 24px;
     height: 24px;
     position: relative;
 }

 .hamburger span {
     display: block;
     position: absolute;
     height: 3px;
     width: 100%;
     background-color: var(--primary-color);
     border-radius: 3px;
     transition: var(--transition);
 }

 .hamburger span:nth-child(1) {
     top: 0;
 }

 .hamburger span:nth-child(2) {
     top: 50%;
     transform: translateY(-50%);
 }

 .hamburger span:nth-child(3) {
     bottom: 0;
 }

 .hamburger.active span:nth-child(1) {
     top: 50%;
     transform: translateY(-50%) rotate(45deg);
 }

 .hamburger.active span:nth-child(2) {
     opacity: 0;
 }

 .hamburger.active span:nth-child(3) {
     bottom: 50%;
     transform: translateY(50%) rotate(-45deg);
 }

 /* 面包屑导航样式 */
 .breadcrumb-nav {
     display: flex;
     align-items: center;
     height: 6rem;
     font-size: 2rem;
     position: fixed;
     top: var(--nav-height);
     z-index: 1;
     background: rgb(205, 188, 172);
     padding: 1rem 40px;
     color: var(--text-active-color);
     width: auto;
     left: 20rem;
     right: 20rem;

 }

 .breadcrumb {
     display: flex;
     flex-wrap: wrap;
     list-style: none;
     margin: 0;
     padding: 0;
     align-items: center;
 }

 .breadcrumb-item {
     display: flex;
     align-items: center;
     color: #6c757d;
     transition: all 0.3s ease;
 }

 .breadcrumb-item+.breadcrumb-item::before {
     content: "›";
     padding: 0 5px;
     color: var(--text-active-color);
     font-weight: 400;
     font-size: 18px;
     line-height: 1;
 }

 .breadcrumb-link {
     color: var(--text-active-color);
     text-decoration: none;
     padding: 5px 0px;
     border-radius: 4px;
     transition: all 0.3s ease;
     display: inline-flex;
     align-items: center;
     gap: 5px;
 }

 .breadcrumb-link:hover {
     font-weight: 700;
     text-decoration: none;
 }

 .breadcrumb-item.active {
     color: var(--text-active-color);
     font-weight: 700;
 }


 /* 移动端菜单状态 */
 .menu-open {
     overflow: hidden !important;
 }

 /* 页面加载状态 */
 .page-loading * {
     transition: none !important;
 }

 .page-loaded .breadcrumb-nav {
     animation: fadeInDown 0.5s ease;
 }

 /* .oil-nav .navbar {
     background-color: rgb(201, 169, 146) !important;
 }

 .oil-detail-breadcrumb-nav {
     background: rgb(239, 221, 209) !important;
 } */

 @keyframes fadeInDown {
     from {
         opacity: 0;
         transform: translateY(-10px);
     }

     to {
         opacity: 1;
         transform: translateY(0);
     }
 }

 /* 响应式调整 */
 @media (max-width: 576px) {
     .breadcrumb {
         font-size: 12px;
     }

     .breadcrumb-item+.breadcrumb-item::before {
         padding: 0 4px;
     }
 }

 /* 响应式设计 */
 @media screen and (max-width: 1025px) {
     .nav-logo img {
         height: 5rem;
     }


 }

 @media screen and (max-width: 992px) {
     .hamburger {
         display: block;
     }

     .nav-links {
         position: fixed;
         top: 50px;
         left: 0;
         width: 100%;
         height: auto;
         background-color: var(--bgc-color);
         flex-direction: column;
         align-items: flex-start;
         padding: 20px;
         box-shadow: var(--shadow);
         opacity: 0;
         visibility: hidden;
         transform: translateY(-20px);
         transition: var(--transition);
     }

     .nav-links.active {
         opacity: 1;
         visibility: visible;
         transform: translateY(0);
     }

     .nav-links li {
         width: 100%;
         margin-bottom: 10px;
     }

     .nav-links a {
         padding: 15px 0;
         width: 100%;
         border-bottom: 1px solid #f0f0f0;
     }

     .nav-center-logo {
         display: none !important;
     }

     .dropdown-menu {
         position: static;
         opacity: 1;
         visibility: visible;
         transform: none;
         box-shadow: none;
         margin-left: 20px;
         display: none;
         transition: none;
         width: 100%;
     }

     .dropdown.active .dropdown-menu {
         display: block;
     }

     .navbar.transparent .nav-links {
         background-color: rgba(0, 0, 0, 0.9);
     }

     .navbar.transparent .nav-links a {
         color: white;
         border-bottom-color: rgba(255, 255, 255, 0.1);
     }

     .nav-logo img {
         height: 5rem;
     }

     .nav-links .nav-links-link {
         height: auto;
         flex-direction: column;
     }

     .breadcrumb-nav {
         /* padding: 12px 0; */
         margin-bottom: 20px;
         top: 5rem;
         height: 4rem;
         left: 0;
         right: 0;
     }

     .breadcrumb {
         font-size: 13px;
     }

     .breadcrumb-item+.breadcrumb-item::before {
         padding: 0 6px;
         font-size: 16px;
     }

     .breadcrumb-link {
         padding: 3px 6px;
     }
 }

 @media screen and (max-width: 576px) {

     .navbar-container {
         padding: 0 15px;
         height: 5rem;
     }

     .breadcrumb-nav {
         top: 5rem;
         padding: 0;
         left: 0;
         right: 0;
     }

     .nav-links .nav-links-link::after,
     .nav-links li .nav-link.active::after,
     .nav-links .nav-links-link:last-child:before {
         display: none;
     }

     .nav-links {
         padding: 0;
     }

     .dropdown-menu {
         margin-left: 0;
     }

     .nav-logo {
         font-size: 1.5rem;
     }

     .nav-logo img {
         height: 4rem;
     }
 }


 @media (min-width: 2560px) {}

 @media (max-width: 1920px) and (min-width: 1440px) {
     .nav-logo img {
         height: 7rem;
     }
 }

 @media (max-width: 1440px) and (min-width: 1201px) {
     .nav-logo img {
         height: 6.5rem;
     }
 }

 @media (max-width: 1200px) and (min-width: 1025px) {
     .nav-logo img {
         height: 5rem;
     }

     .nav-links .nav-links-link {
         padding: 0rem 1.8rem;
     }

     .navbar-container {
         height: 8rem;
     }

     .breadcrumb-nav {
         top: 8rem;
         left: 0;
         right: 0;
     }
 }

 @media (max-width: 1024px) and (min-width: 768px) {
     .navbar-container {
         padding: 0 15px;
         height: 6rem;
     }

     .breadcrumb-nav {
         top: 6rem;
         left: 0;
         right: 0;
     }

     .nav-logo img {
         height: 5rem;
     }

     /* .nav-links .nav-links-link::after,
          .nav-links li .nav-link.active::after,
          .nav-links .nav-links-link:last-child:before {
              display: none;
          } */

     .nav-links li .nav-link.active::after {
         bottom: -53%;
     }

     .nav-links .nav-links-link::after,
     .nav-links .nav-links-link:last-child:before {
         height: 4rem;
     }

     .nav-links {
         padding: 0;
     }

     .dropdown-menu {
         margin-left: 0;
     }

     .nav-links .nav-links-link {
         padding: 0rem 0.8rem;
     }

 }

 @media (max-width: 768px) {
     .navbar-container {
         padding: 0 15px;
         height: 5rem;
     }

     .breadcrumb-nav {
         top: 5rem;
         left: 0;
         right: 0;
     }

     .nav-links .nav-links-link::after,
     .nav-links li .nav-link.active::after,
     .nav-links .nav-links-link:last-child:before {
         display: none;
     }

     .nav-links {
         padding: 0;
     }

     .dropdown-menu {
         margin-left: 0;
     }

 }


 @media screen and (min-width: 1025px) and (max-width: 1366px) {
     .navbar {
         left: 12rem;
         right: 12rem;
         width: auto;
     }

     .nav-links .nav-links-link {
         padding: 0rem 2rem;
     }
          .breadcrumb-nav {
              left: 12rem;
              right: 12rem;
          }
 }

 @media screen and (min-width: 1367px) and (max-width: 1440px) {
     .navbar {
         left: 20rem;
         right: 20rem;
         width: auto;
     }

     .nav-links .nav-links-link {
         padding: 0rem 2rem;
     }
 }

 @media screen and (min-width: 1441px) and (max-width: 1920px) {
     .navbar {
         left: 20rem;
         right: 20rem;
         width: auto;
     }

 }

 @media screen and (min-width: 1921px) and (max-width: 2559px) {
     .navbar {
         left: 20rem;
         right: 20rem;
         width: auto;
     }
 }

 @media screen and (min-width: 2560px) and (max-width: 3839px) {
     .navbar {
         left: 20rem;
         right: 20rem;
         width: auto;
     }
 }