.section2 {
       padding-top: 80px;
       position: relative;
       z-index: 2;
   }

   .Box2 {
       position: relative;
       width: 1440px;
       margin: 0 auto;
       margin-top: 30px;
       display: grid;
       grid-template-columns: repeat(4, 1fr);
       grid-gap: 20px;
   }

   .item2 {
       padding: 100px 30px 90px;
       border: 1px solid rgba(0, 7, 71, 0.05);
       border-radius: 30px;
       width: 100%;
       position: relative;
       overflow: hidden;
       display: flex;
       flex-direction: column;
       align-items: center;
   }

   .item2 .img2 {
       width: 100px;
       height: 100%;
       margin-bottom: 30px;
       position: relative;
       z-index: 1;
       display: flex;
   }

   .item2 .img2 img {
       width: 100%;
       height: 100%;
       object-fit: contain;
   }

   .item2 .img2 .icon2_1 {
       position: relative;
       z-index: 2;
       opacity: 1;
       transition: 1s;
   }


   .item2 .img2 .icon2_2 {
       position: absolute;
       z-index: 1;
   }

   .item2 .text {
       position: relative;
   }

   .item2 .text h1 {
       font-weight: 400;
       font-size: 28px;
       line-height: 1;
       text-align: center;
       color: rgba(0, 7, 71, 0.5);
   }

   .item2 .text h2 {
       margin-top: 10px;
       font-size: 18px;
       line-height: 2;
       text-align: center;
       color: rgba(0, 7, 71, 0.5);
   }

   .item2.on .img2 .icon2_1 {
       opacity: 0;
   }

   .item2.on .text h1 {
       font-weight: bold;
       background: linear-gradient(260.16deg, #24E0E0 -30.39%, #3445E2 94.93%);
       -webkit-background-clip: text;
       -webkit-text-fill-color: transparent;
       background-clip: text;
       text-fill-color: transparent;
   }

   .huidi {
       position: absolute;
       z-index: -1;
       left: 0%;
       width: calc((1440px - 60px) / 4);
       height: 100%;
       background: #f5f7f9;
       border-radius: 30px;
       transition: 0.8s ease-in-out;
       opacity: 0;
   }

   :root {
       --aur: calc((1440px - 60px) / 4)
   }

   .Box2.aur1 .huidi {
       left: 0;
       opacity: 1;
   }

   .Box2.aur2 .huidi {
       left: calc(var(--aur) + 20px);
       opacity: 1;
   }

   .Box2.aur3 .huidi {
       left: calc(var(--aur) * 2 + 40px);
       opacity: 1;
   }

   .Box2.aur4 .huidi {
       left: calc(var(--aur) * 3 + 60px);
       opacity: 1;
   }


   .beijing {
       position: absolute;
       z-index: -1;
       left: 0%;
       width: calc((1440px - 60px) / 4);
       height: 100%;
       border-radius: 30px;
       transition: 0.8s ease-in-out;
       background: rgba(255, 255, 255);
       box-shadow: 0px 4px 15px rgba(52, 69, 226, 0.15);
   }

   .beijing .aa {
       position: absolute;
       top: -8px;
       left: 25%;
       width: 50%;
       height: 8px;
       border-radius: 5px 5px 0 0;
       background: var(--color3);
   }

   .beijing .bb {
       position: absolute;
       top: 0px;
       left: 25%;
       width: 50%;
       height: 20px;
       border-radius: 5px 5px 0 0;
       background: var(--color3);
       filter: blur(7.5px);
       border-radius: 0px;
   }

   .Box2.cur1 .beijing {
       left: 0%;
   }

   .Box2.cur2 .beijing {
       left: calc(var(--aur) + 20px);
   }

   .Box2.cur3 .beijing {
       left: calc(var(--aur) * 2 + 40px);
   }

   .Box2.cur4 .beijing {
       left: calc(var(--aur) * 3 + 60px);
   }

   @media (max-width: 1540px) {
       .section2 {
           padding-top: 70px;
       }

       .Box2 {
           width: 1170px;
       }

       .item2 {
           padding: 60px 30px 45px;
       }

       .item2 .text h2 {
           margin-top: 15px;
           line-height: 1.5;
       }

       .huidi {
           width: calc((1170px - 60px) / 4);
       }

       :root {
           --aur: calc((1170px - 60px) / 4)
       }

       .beijing {
           width: calc((1170px - 60px) / 4);
       }
   }

   @media (max-width: 1200px) {
       .section2 {
           padding-top: 60px;
       }

       .Box2 {
           width: 100%;
       }

       .huidi {
           width: calc((100% - 60px) / 4);
       }

       :root {
           --aur: calc((100% - 60px) / 4)
       }

       .beijing {
           width: calc((100% - 60px) / 4);
       }

       .item2 .text h1 {
           font-size: 24px;
       }

       .item2 .text h2 {
           font-size: 16px;
       }

       .item2 .img2 {
           width: 60px;
           height: 60px;
       }
   }

   @media (max-width:800px) {
       .Box2 {
           display: grid;
           grid-template-columns: repeat(1, 1fr);
           grid-gap: 20px;
       }

       .item2 {
           height: 160px;
           padding: 30px;
           display: flex;
           flex-direction: row;
           align-items: center;
       }

       .item2 .img2 {
           margin: 0;
       }

       .item2 .text {
           width: calc(100% - 60px);
           padding-left: 20px;
       }

       .item2 .text h1,
       .item2 .text h2 {
           text-align: left;
       }


       .huidi {
           width: 100%;
           height: 160px;
       }

       :root {
           --aur: 160px;
       }


       .Box2.aur1 .huidi {
           left: 0;
           top: 0;
       }

       .Box2.aur2 .huidi {
           left: 0;
           top: calc(var(--aur) + 20px);
           opacity: 1;
       }

       .Box2.aur3 .huidi {
           left: 0;
           top: calc(var(--aur) * 2 + 40px);
           opacity: 1;
       }

       .Box2.aur4 .huidi {
           left: 0;
           top: calc(var(--aur) * 3 + 60px);
           opacity: 1;
       }


       .beijing {
           width: 100%;
           height: 160px;
       }

       .beijing .aa {
           left: -4px;
           top: 25%;
           width: 4px;
           height: 50%;
           border-radius: 5px 0 0 5px;
       }

       .beijing .bb {
           top: 25%;
           left: 0px;
           width: 10px;
           height: 50%;
           border-radius: 0 5px 5px 0;
       }

       .Box2.cur1 .beijing {
           left: 0;
       }

       .Box2.cur2 .beijing {
           left: 0;
           top: calc(var(--aur) + 20px);
       }

       .Box2.cur3 .beijing {
           left: 0;
           top: calc(var(--aur) * 2 + 40px);
       }

       .Box2.cur4 .beijing {
           left: 0;
           top: calc(var(--aur) * 3 + 60px);
       }
   }


   @media (max-width:460px) {
       .section2 {
           padding-top: 40px;
       }

       .item2 {
           padding: 20px 15px;
       }

       .item2 .img2 {
           width: 45px;
           height: 45px;
       }

       .item2 .text {
           width: calc(100% - 45px);
           padding-left: 15px;
       }

       .item2 .text h2 {
           margin-top: 5px;
       }

       .item2 .text h1 {
           font-size: 18px;
       }

       .item2 .text h2 {
           margin-top: 10px;
       }
   }