.section3 {
       background: #fff;
       position: relative;
       padding: 0;
   }

   .Box3 {
       display: flex;
       flex-wrap: wrap;
   }

   .lt3 {
       width: 35%;
       padding-top: 45px;
       padding-bottom: 45px;
       padding-left: var(--container);
       padding-right: 100px;
       display: flex;
       flex-direction: column;
       justify-content: center;
   }

   .lt3 .IndexTitle {
       margin: 0;
       display: flex;
       flex-direction: column;
       align-items: flex-start;
   }

   .lt3 .IndexTitle h1::after {
       transform: translateX(3%) translateY(12%);
   }

   .lt3 .aa {
       display: block;
       width: 30px;
       height: 3px;
       background: var(--color);
       margin: 15px 0;
   }

   .lt3 .desc {
       font-size: 14px;
       line-height: 1.5;
       color: #333333;
   }

   .lt3 .Nav3 {
       margin-top: 45px;
       border-bottom: 2px solid #cccccc;
       display: flex;
       flex-wrap: wrap;
   }

   .lt3 .Nav3 a {
       width: 100%;
       display: flex;
       align-items: center;
       justify-content: space-between;
       grid-gap: 15px;
       height: 80px;
       padding: 0 10px;
       font-size: 16px;
       color: #333333;
       border-top: 2px solid #cccccc;
   }

   .lt3 .Nav3 a:hover {
       background: var(--color);
   }

   .lt3 .Nav3 a img {
       width: 20px;
   }

   .rt3 {
       width: 65%;
       padding: 80px;
       padding-right: var(--container);
       display: flex;
       flex-direction: column;
       justify-content: center;
   }

   .item3Box {
       width: 100%;
       display: grid;
       grid-template-columns: repeat(3, 1fr);
       grid-gap: 15px;
   }

   .item3 {
       width: 100%;
   }

   .item3 .text3 {
       display: flex;
       justify-content: space-between;
       align-items: center;
       height: 45px;
       width: 100%;
       background: #fff;
       border-top: 1px solid #cccccc;
       padding: 0 20px;
   }

   .item3 .text3 h1 {
       font-size: 18px;
       color: #333333;
   }

   .item3 .text3 img {
       width: 23px;
   }

   @media (max-width: 1600px) {}

   @media (max-width: 1440px) {
       .lt3 {
           padding-right: 60px;
       }

       .rt3 {
           padding: 60px;
       }
   }

   @media (max-width: 1200px) {
       .lt3 {
           width: 40%;
           padding-top: 30px;
           padding-bottom: 30px;
       }

       .rt3 {
           width: 60%;
           padding: 30px;
       }

       .lt3 .Nav3 {
           margin-top: 15px;
       }

       .lt3 .Nav3 a {
           height: 45px;
           font-size: 14px;
       }

       .item3 .text3 {
           padding: 0 10px;
       }

       .item3 .text3 h1 {
           font-size: 16px;
       }

       .item3 .text3 img {
           width: 16px;
       }
   }

   @media (max-width: 800px) {
       .lt3 {
           width: 100%;
           padding: 45px var(--container);
           padding-bottom: 20px;
       }

       .rt3 {
           width: 100%;
           padding: 45px var(--container);
           padding-top: 20px;
       }
   }

   @media (max-width: 460px) {
       .item3Box {
           grid-template-columns: repeat(2, 1fr);
       }
   }