* {
     margin: 0;
     padding: 0;
     box-sizing: border-box;
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
 }

 body {
     background: linear-gradient(135deg, #ecf0f1);
     min-height: 100vh;
 }

 /* 全宽度导航栏 */
 .navbar {
     background-color: white;
     width: 100%;
     box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
     position: relative;
 }

 .nav-container {
     display: flex;
     justify-content: space-between;
     align-items: center;
     height: 70px;
     max-width: 1400px;
     margin: 0 auto;
     padding: 0 20px;
 }

 .logo {
     height: 50px;
     width: auto;
 }

 .nav-menu {
     display: flex;
     list-style: none;
     transition: all 0.4s ease;
 }

 .nav-item {
     padding: 0 52.5px;
 }

 .nav-link {
     color: #3498db;
     text-decoration: none;
     font-size: 1.1rem;
     font-weight: 600;
     padding: 10px 5px;
     position: relative;
     transition: all 0.3s ease;
     display: flex;
     align-items: center;
 }

 .nav-link i {
     margin-right: 8px;
     font-size: 1.2rem;
 }

 .nav-link:hover {
     color: #7f8c8d;
 }

 .nav-link::after {
     content: '';
     position: absolute;
     bottom: 0;
     left: 0;
     width: 0;
     height: 3px;
     background-color: #7f8c8d;
     transition: width 0.3s ease;
 }

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





 .logo-container {
     display: flex;
     justify-content: center;
     align-items: center;
     height: 100%;
 }


 .logo-img {
     height: 40px;
     width: auto;
     transition: transform 0.3s ease;
 }

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

 .lang-toggle {
     background: none;
     border: none;
     color: #3498db;
     font-size: 1.1rem;
     font-weight: 600;
     padding: 10px 15px;
     cursor: pointer;
     position: relative;
     transition: all 0.3s ease;
     display: flex;
     align-items: center;
     margin-left: 15px;
     border-radius: 5px;
     background-color: rgba(52, 152, 219, 0.1);
 }

 .lang-toggle:hover {
     background-color: rgba(52, 152, 219, 0.2);
     color: #2c3e50;
 }

 .lang-toggle i {
     font-size: 1.2rem;
 }

 .lang-toggle::after {
     content: '';
     position: absolute;
     bottom: 0;
     left: 0;
     width: 0;
     height: 3px;
     background-color: #7f8c8d;
     transition: width 0.3s ease;
 }

 .lang-toggle:hover::after {
     width: 100%;
 }

 .hamburger {
     display: none;
     cursor: pointer;
     background: none;
     border: none;
     outline: none;
 }

 .bar {
     display: block;
     width: 25px;
     height: 3px;
     margin: 5px auto;
     background-color: #3498db;
     transition: all 0.3s ease;
 }

 /* 响应式设计 */
 @media (max-width: 1024px) {
     .nav-item {
         padding: 0 22px;
     }

     .nav-link {
         font-size: 1rem;
     }
 }

 @media (max-width: 992px) {
     .nav-item {
         padding: 0 10px;
     }

     .nav-link {
         font-size: 1rem;
     }
 }

 @media (max-width: 768px) {
     .nav-menu {
         position: absolute;
         left: 0;
         top: 70px;
         flex-direction: column;
         width: 100%;
         background-color: white;
         box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
         text-align: center;
         padding: 20px 0;
         transform: translateY(-150%);
         z-index: -1;
         opacity: 0;
     }

     .nav-menu.active {
         transform: translateY(0);
         opacity: 1;
         z-index: 100;
     }

     .nav-item {
         margin: 15px 0;
     }

     .hamburger {
         display: block;
     }

     .hamburger.active .bar:nth-child(1) {
         transform: translateY(8px) rotate(45deg);
     }

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

     .hamburger.active .bar:nth-child(3) {
         transform: translateY(-8px) rotate(-45deg);
     }


 }

 @media (max-width: 480px) {
     .logo-img {
         height: 40px;
     }
 }



 footer {
     background: linear-gradient(90deg,
             #454f57 0%,
             #454f57 77.66%,
             #7f8c8d 77.66%,
             #7f8c8d 100%);
     color: white;
     padding: 40px 20px;
     text-align: center;
 }

 .footer-content {
     max-width: 1700px;
     margin: 0 auto;
     display: flex;
     flex-wrap: wrap;
     justify-content: space-between;
     gap: 30px;
 }

 .footer-section {
     flex: 1 1 100px;
     text-align: left;
 }

 .footer-section h3 {
     font-size: 1.5rem;
     margin-bottom: 20px;
     color: #f8f9fa;
 }

 .footer-section p {
     font-weight: 400;
     margin-bottom: 15px;
     color: #e7f1f7cf;
 }

 .footer-section2 {
     position: relative;
     background: rgba(255, 255, 255, 0.3);
     background-size: cover;
     padding: 0px 50px;
     border-radius: 5px;

 }

 .footer-section2::after {
     content: '';
     position: absolute;
     top: 0;
     left: 0;
     right: 0;
     bottom: 0;
     z-index: -1;
 }


 .footer-section a {


     color: #4caff1;

     transition: all 0.3s ease;
 }

 .footer-section a:hover {
     color: white;
 }

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

 .social-links a {
     display: inline-block;
     width: 40px;
     height: 40px;
     background-color: #3498db;
     border-radius: 50%;
     color: white;
     text-align: center;
     line-height: 40px;
     transition: all 0.3s ease;
 }

 .social-links a:hover {
     transform: translateY(-5px);
     background-color: #2c3e50;
 }

 .copyright {
     margin-top: 40px;
     padding-top: 20px;
     border-top: 1px solid rgba(255, 255, 255, 0.1);
     color: #bdc3c7;
 }

 .main-bg-container {
     width: 100%;
     height: 1000px;
     position: relative;
     overflow: hidden;
 }

 .main-bg-image {
     width: 100%;
     height: 100%;
     object-fit: cover;
     position: absolute;
     top: 0;
     left: 0;
     z-index: 1;
 }

 /* 动态透明文本框 */
 .dynamic-text-panel {
     position: absolute;
     left: 0;
     bottom: 0;
     width: 50%;
     height: 53.333%;
     /* 图片高度的1/3 */
     background: rgba(4, 67, 82, 0.35);
     backdrop-filter: blur(1px);
     padding: 40px;
     z-index: 2;
     display: flex;
     flex-direction: column;
     justify-content: center;
     transform: translateY(100%);
     animation: slideUp 1.2s cubic-bezier(0.23, 1, 0.32, 1) forwards;
     animation-delay: 0.3s;
     border-top-right-radius: 20px;
     box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
 }

 @keyframes slideUp {
     from {
         transform: translateY(100%);
         opacity: 0;
     }

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



 .dynamic-text-panel p {
     font-size: 2.2rem;
     font-weight: 500;
     color: #e0e0e0;
     max-width: 90%;
     line-height: 1.6;
 }


 /* 响应式设计 */

 @media (max-width: 992px) {
     .main-bg-container {
         height: 1000px;
     }

     .dynamic-text-panel {
         width: 80%;
     }



     .dynamic-text-panel p {
         font-size: 2rem;
     }
 }

 @media (max-width: 768px) {
     .main-bg-container {
         height: 900px;
     }

     .dynamic-text-panel {
         width: 100%;
         height: 60%;
         padding: 30px;
     }

     .dynamic-text-panel h1 {
         font-size: 2.2rem;
     }

     .dynamic-text-panel p {
         font-size: 2rem;
     }

     .section-heading {
         font-size: 2rem;
     }
 }

 @media (max-width: 480px) {
     .main-bg-container {
         height: 600px;
     }

     .dynamic-text-panel {
         padding: 20px;
         height: 45%;
     }

     .dynamic-text-panel h1 {
         font-size: 1.8rem;
     }

     .dynamic-text-panel p {
         font-size: 1.5rem;
     }



 }

 .card-icon {
     background-color: #fafbfb;
     color: #e5e9ed;
     min-width: 35px;
     display: ruby-base-container;
     place-items: center;
     border-radius: var(--radius-15) 0;
     transition: var(--transition-1);
 }

 .card-icon {
     border-radius: 0;
     border-radius: var(--radius-5);
     background-color: var(--smoky-black);
 }






 .unique-top-container {
     max-width: 1000px;
     width: 100%;
     background: white;
     border-radius: 15px;
     padding: 40px;
     box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
     margin-bottom: 20px;
 }

 .unique-top-title {
     font-size: 2.5rem;
     color: #2c3e50;
     margin-bottom: 20px;
     text-align: center;
 }

 .unique-top-text {
     font-size: 1.1rem;
     color: #333;
     line-height: 1.8;
     margin-bottom: 20px;
 }

 /* 底部导航栏容器 - 唯一命名 */
 .unique-bottom-container {
     width: 100%;
     max-width: 100%;
     background: white;
     overflow: hidden;
 }

 /* 导航盒子容器 - 唯一命名 */
 .unique-nav-wrapper {
     display: flex;
     flex-wrap: wrap;
 }

 /* 主导航盒子 - 唯一命名 */
 .unique-primary-navbox {
     flex: 1;
     min-width: 250px;
     background: #4d4d4d;
     padding: 30px;
 }

 /* 联系地址盒子 - 宽度加倍 - 唯一命名 */
 .unique-double-contactbox {
     flex: 2;
     /* 宽度加倍 */
     min-width: 300px;
     background: #7f7f81;
     padding: 30px;
     display: flex;
     flex-direction: column;
 }

 /* 导航标题 - 唯一命名 */
 .unique-section-title {
     font-size: 1.5rem;
     justify-content: center;
     align-items: center;
     color: #e5e9ed;
     margin-bottom: 20px;
     padding-bottom: 10px;
 }

 /* 导航列表 - 唯一命名 */
 .unique-nav-list {
     list-style: none;
 }

 .unique-nav-item {
     margin-bottom: 15px;
 }

 .unique-nav-link {
     display: flex;
     align-items: center;
     color: #6bbef6;
     text-decoration: none;
     font-size: 1.1rem;
     font-weight: 500;
     transition: all 0.3s ease;
 }

 .unique-nav-link:hover {
     color: #fcfeff;
     transform: translateX(5px);
 }

 .unique-nav-icon {
     margin-right: 10px;
     font-size: 1.2rem;
     width: 25px;
     text-align: center;
 }

 /* 联系地址样式 - 唯一命名 */
 .unique-contact-item {
     display: flex;
     margin-bottom: 20px;
 }

 .unique-contact-icon {
     width: 40px;
     height: 40px;
     display: flex;
     justify-content: center;
     align-items: center;
     color: white;
     font-size: 1.2rem;
     margin-right: 15px;
     flex-shrink: 0;
 }

 .unique-contact-info {
     display: flex;
     flex-direction: column;
     justify-content: center;
 }

 .unique-contact-title {
     font-weight: 600;
     color: #2c3e50;
     margin-bottom: 5px;
 }

 .unique-contact-detail {
     color: #fdfdfd;
     font-size: 1rem;
     justify-content: left;
 }

 /* 响应式设计 */
 @media (max-width: 768px) {
     .unique-nav-wrapper {
         flex-direction: column;
     }

     .unique-top-container {
         padding: 30px;
     }

     .unique-top-title {
         font-size: 2.2rem;
     }

     .unique-primary-navbox,
     .unique-double-contactbox {
         padding: 20px;
         flex: 1;
         /* 移动端恢复等宽 */
     }

     .unique-section-title {
         font-size: 1.3rem;
     }

     .unique-nav-link {
         font-size: 1rem;
     }
 }

 @media (max-width: 576px) {
     .unique-top-container {
         padding: 20px;
     }

     .unique-top-title {
         font-size: 2rem;
     }

     .unique-top-text {
         font-size: 1rem;
     }

     .unique-primary-navbox,
     .unique-double-contactbox {
         padding: 15px;
     }

     .unique-section-title {
         font-size: 1.2rem;
     }

     .unique-nav-link {
         font-size: 0.95rem;
     }

     .unique-contact-icon {
         width: 35px;
         height: 35px;
         font-size: 1rem;
     }

     .unique-contact-title {
         font-size: 0.95rem;
     }

     .unique-contact-detail {
         font-size: 0.9rem;
     }
 }

 @media (max-width: 480px) {
     .unique-top-title {
         font-size: 1.8rem;
     }

     .unique-nav-link {
         font-size: 0.9rem;
     }

     .unique-contact-icon {
         width: 30px;
         height: 30px;
         font-size: 0.9rem;
     }
 }

 /* 页脚版权 - 唯一命名 */
 .unique-copyright {
     padding: 20px;
     text-align: center;
     background: linear-gradient(45deg, rgb(121, 176, 227), rgb(236, 236, 232));
 }