/* 小屏幕手机端 */
                 @media (min-width: 0rem) and (max-width:750px) {
                     nav {
                         padding: 0 .4rem;
                         box-sizing: border-box;
                     }

                     main {}


                     .support {
                         /* height: 21.3333rem; */
                         margin: 0 auto;
                     }

                     ul {}

                     li {
                         /* height: 9rem; */
                         padding: .6667rem .4rem;
                         box-sizing: border-box;
                     }

                     /* li:nth-child(4) {
                         height: 7.7067rem;
                     } */

                     li:nth-child(4) img {
                         margin-top: 0;
                     }

                     li:nth-child(2n) .content {
                         display: flex;
                         flex-direction: column-reverse;
                     }

                     .mainleft h1{
                         display: flex;
                         justify-content: center;
                         align-items: center;
                     }
                     .mainleft p {
                         /* display: flex;
                         justify-content: center;
                         align-items: center; */
                     }
                    .mainleft .tel {
                        display: inline-block;
                        font-family: Alibaba PuHuiTi;
                        font-weight: 400;
                        font-size: .3467rem;
                        color: #999999;
                    }
                     /* li:nth-child(-n+2) .mainleft h1 {
                         height: .4133rem;
                     } */

                     li:nth-child(n+1) {
                         background: #F7F9FD;
                     }

                     li:nth-child(2n) {
                         background: #FBFBFB;
                     }

                     li img {
                         width: 5.0533rem;
                         height: 5.2533rem;
                         display: flex;
                         justify-content: center;
                         align-items: center;
                         margin: .6rem auto 0;
                     }

                     li:nth-child(1) img {
                         width: 5.0533rem;
                         height: 5.2533rem;
                     }

                     li:nth-child(2) img {
                         width: 5.9333rem;
                         height: 5.0667rem;
                     }

                     li:nth-child(3) img {
                         width: 5.6533rem;
                         height: 4.8667rem;
                     }

                     li:nth-child(4) img {
                         width: 6.36rem;
                         height: 4.3467rem;
                     }

                     li:nth-child(1) p {
                         padding: 0 .3733rem;
                         box-sizing: border-box;
                     }

                     li:nth-child(2) p {
                         padding: 0 .1333rem;
                         box-sizing: border-box;
                     }

                     li:nth-child(3) p {
                         padding: 0 .1333rem;
                         box-sizing: border-box;
                     }

                     li h1 {
                         font-family: Alibaba PuHuiTi;
                         font-weight: 400;
                         font-size: .4267rem;
                         color: #333333;
                     }

                     li p {
                         font-family: Alibaba PuHuiTi;
                         font-weight: 400;
                         font-size: .3467rem;
                         color: #999999 ;
                         margin-top: .5067rem;
                     }


                 }