.top_body {
               height: 750px;
               background-image: url('../images/pc.png');
               background-size: 100% 100%;
               background-repeat: no-repeat;
               /* padding: 35rpx; */
               position: relative;
               width: 1920px;
               margin: auto;
           }
           
           .top_body_img {
               margin: 50rpx;
               align-items: center;
               /* mask-repeat: no-repeat; */
           }
           
           .top_body_img_box {
               width: 400px;
               height: 200px;
               display: flex;
               position: relative;
               top: 500px;
               left: 400px;
               justify-content: space-between;
           }
           
           .top_body_img_box_right {
               width: 250px;
               padding: 10px;
           }
           
           .top_body_img01 {
               width: 170px;
               height: 50px;
               position: relative;
           }
           
           .top_body_img02 {
               width: 170px;
               height: 50px;
               position: relative;
           }
           
           .top_body_img03 {
               width: 130px;
               height: 130px;
               position: absolute;
           }
           
           .lead {
               padding: 25rpx;
               width: calc(100%-25rpx);
               height: 200rpx;
               align-items: center;
           }
           
           .m_body {
               width: 100%;
               height: 900px;
               text-align: center;
           }
           
           .m_body_top {
               text-align: center;
           }
           
           .seventh {
               background-color: black;
               width: 100%;
               height: 200rpx;
           }
           
           .first {
               margin-top: 100px;
               margin-bottom: 140px;
               text-align: center;
           }
           
           .first_01 {
               width: 1180px;
               height: 314px;
               text-align: center;
           }
           
           .first_02 {
               width: 1180px;
               height: 590px;
               /* display: flex; */
               text-align: center;
           }
           
           .first_02_img1 {
               background-image: url('../images/022.png');
               height: 200px;
               width: 250px;
               background-size: 100% 100%;
           }
           
           .first_02_img2 {
               height: 200px;
               width: 300px;
           }
           
           .first_02_img2_01 {
               font-size: 25px;
               font-weight: bold;
           }
           /* .first_03_box {} */
           
           .first_03 {
               width: 136px;
               height: 136px;
               margin-top: 20px;
           }
           
           .second {
               margin-top: 100px;
               margin-bottom: 140px;
               /* text-align: center; */
               display: flex;
           }
           
           .second_img {
               width: 336px;
               height: 245px;
               line-height: 245px;
               margin-top: 96px;
               /* text-align: center; */
           }
           
           .second_left {
               margin-top: 30px;
               width: 336px;
               height: 245px;
               text-align: center;
               /* margin-left: 121.5px; */
           }
           
           .second_left_button {
               background-image: url('../images/019.png');
               background-size: 100% 100%;
               width: 80px;
               height: 50px;
               margin-left: 100px;
               margin-top: 80px;
           }
           
           .second_left_text01 {
               font-size: 20px;
               font-weight: bold;
           }
           
           .second_left_text02 {
               font-size: 12px;
           }
           
           .second_01 {
               width: 17%;
               height: 180px;
               top: 30px;
               position: relative;
               float: left;
               top: 100px;
           }
           
           .second_02 {
               width: 280px;
               height: 590px;
           }
           
           .second_03 {
               width: 40%;
               height: 500px;
           }
           
           .second_04 {
               width: 15%;
               height: 500px;
           }
           
           .second_box {
               width: 1180px;
               height: 648px;
               display: flex;
               /* text-align: center; */
               margin: auto;
           }
           
           .third {
               margin-top: 100px;
               margin-bottom: 140px;
           }
           
           .third_01 {
               width: 1180px;
               height: 685px;
           }
           
           .fourth {
               margin-top: 100px;
               margin-bottom: 140px;
               width: 1920px;
               height: 529px;
               margin: auto;
           }
           
           .fourth_img_01 {
               width: 100%;
               height: 100%;
           }
           
           .fifth {
               margin-top: 100px;
               margin-left: 250px;
               margin-right: 250px;
               margin-bottom: 140px;
           }
           
           .fifth_top {
               display: flex;
               justify-content: space-between;
               width: 1180px;
               margin: auto;
           }
           
           .fifth_bottom {
               width: 1180px;
               margin: auto;
           }
           
           .fifth_top_01 {
               background-image: url('../images/018.png');
               background-size: 100% 100%;
               width: 140px;
               height: 80px;
           }
           
           .fifth_top_01_text {
               font-size: 26px;
               text-align: center;
               line-height: 26px;
           }
           
           .fifth_img_01 {
               width: 100%;
               height: 100%;
           }
           
           .fifth_bottom_column {
               margin-top: 30px;
               display: flex;
               justify-content: space-between;
           }
           
           .fifth_bottom_column_01 {
               background-image: url('../images/016.png');
               background-size: 100% 100%;
               height: 200px;
               width: 140px;
               text-align: center;
               font-size: 20px;
           }
           
           .fifth_bottom_column_03 {
               background-image: url('../images/016.png');
               background-size: 100% 100%;
               height: 200px;
               width: 140px;
               text-align: center;
               font-size: 20px;
           }
           
           .fifth_bottom_column_01_text {
               padding-top: 4px;
               padding-bottom: 15px;
           }
           
           .fifth_bottom_column_02_text {
               padding-top: 30px;
           }
           
           .fifth_bottom_column_03_text {
               padding-top: 10px;
           }
           
           .fifth_bottom_column_04_text {
               padding-top: 30px;
           }
           
           .fifth_bottom_column_05_text {
               padding-top: 10px;
           }
           
           .fifth_bottom_column_02 {
               background-image: url('../images/015.png');
               background-size: 100% 100%;
               width: 140px;
               height: 65px;
               text-align: center;
               font-size: 20px;
           }
           
           .fifth_bottom_column_04 {
               width: 140px;
               background-color: white;
           }
           
           .fifth_bottom_column_05 {
               background-image: url('../images/017.png');
               background-size: 100% 100%;
               height: 400px;
               width: 140px;
               text-align: center;
               font-size: 18px;
           }
           
           .sixth {
               margin-top: 100px;
               margin-left: 250px;
               margin-right: 250px;
               margin-bottom: 140px;
               width: 1920px;
               margin: auto;
           }
           
           .sixth_text {
               font-size: 25px;
               text-align: center;
               font-weight: bold;
           }
           
           .sixth_button {
               background-color: #0089FF;
               border: none;
               color: white;
               padding: 15px 32px;
               text-align: center;
               text-decoration: none;
               display: inline-block;
               font-size: 16px;
               /* margin: 4px 2px; */
               cursor: pointer;
               text-align: center;
               border-radius: 20px;
               margin-top: 50px;
               margin-bottom: 80px;
           }
           
           .seventh {
               width: 1920px;
               margin: auto;
               background-color: #343331;
               height: 700px;
           }
           
           .seventh_top {
               width: 70%;
               display: flex;
               justify-content: space-around;
               margin: auto;
           }
           
           .seventh_top_text {
               font-size: 25px;
               color: aliceblue;
           }
           
           .seventh_bottom {
               width: 100%;
               justify-content: space-around;
               display: flex;
           }
           
           .seventh_bottom_left {
               width: 45%;
               margin-left: 200px;
               margin-top: 150px;
           }
           
           .seventh_bottom_left_img {
               width: 150px;
               height: 150px;
           }
           
           .seventh_bottom_left_text {
               font-size: 40px;
               color: aliceblue;
               font-weight: bold;
           }
           
           .seventh_bottom_right {
               width: 400px;
           }
           
           .seventh_bottom_right_text {
               font-size: 23px;
               color: aliceblue;
               text-align: left;
           }
           
           .second_right {
               overflow: hidden;
               width: 766px;
               /* display: flex; */
               position: relative;
               margin-left: 200px;
           }
           
           #banner {
               height: 606px;
               width: 1900px;
               /* width: 1400px; */
               /*655×4 = 3275*/
           }
           
           li {
               float: left;
               width: 280px;
               height: 606px;
               list-style: none;
           }
           /* .second_right_jiantou {
    position: absolute;
    right: 5px;
    top: 200px;
    width: 80px;
    height: 80px;
}

.second_right_jiantou_img {
    width: 100%;
    height: 100%;
} */