html {
    font-size: 50px;
}

@media screen and (min-width: 320px) {
    html {
        font-size: 42px;
    }
}

@media screen and (min-width: 360px) {
    html {
        font-size: 48px;
    }
}

@media screen and (min-width: 375px) {
    html {
        font-size: 50px;
    }
}

@media screen and (min-width: 384px) {
    html {
        font-size: 51.2px;
    }
}

@media screen and (min-width: 400px) {
    html {
        font-size: 53.2px;
    }
}

@media screen and (min-width: 414px) {
    html {
        font-size: 55.2px;
    }
}

@media screen and (min-width: 424px) {
    html {
        font-size: 56.3px;
    }
}

@media screen and (min-width: 480px) {
    html {
        font-size: 64px;
    }
}

@media screen and (min-width: 540px) {
    html {
        font-size: 72px;
    }
}

@media screen and (min-width: 720px) {
    html {
        font-size: 96px;
    }
}

@media screen and (min-width: 750px) {
    html {
        font-size: 100px;
    }
}
 

    @media screen and (max-width: 1080px) {
        .header {
            position: fixed;
            top: 0;
            width: 100%;
            height: 1.18rem;
            border-bottom: 1px solid #f5f5f5;
            background: #ffffff;
            z-index: 9;
        }

        .logo {
            width: 1.36rem;
            height: 0.38rem;
            margin-top: 0.4rem;
            position: absolute;
            left: 0.3rem;
            z-index: 99999;
        }

            .logo img {
            }

        .nav {
            width: 0.45rem;
            height: 0.38rem;
            margin-top: 0.47rem;
            position: absolute;
            right: 0.3rem;
        }

        .header h3 {
            width: 6.9rem;
            position: absolute;
            color: #272727;
            height: 1.18rem;
            line-height: 1.18rem;
            font-size: 0.36rem;
            font-family: 'pingfang-medium';
            text-align: center;
            left: 50%;
            margin-left: -3.45rem;
        }

        .search img {
            width: 0.34rem;
            height: 0.34rem;
        }

        .search {
            position: absolute;
            right: 1rem;
            top: 0.45rem;
            width: 0.34rem;
            height: 0.34rem;
            cursor: pointer;
        }

        .header .entry {
            width: 41%;
            height: 0.9rem;
            border-radius: 1rem;
            border: 1px solid #767575;
            position: absolute;
            right: 4.9rem;
            top: 1rem;
            display: none;
            outline: none;
            text-indent: 0.5rem;
        }

        .search-btn {
            width: 2rem;
            text-align: center;
            height: 1rem;
            background: #D15719;
            color: #fff;
            font-size: 0.6rem;
            line-height: 1rem;
            border: 0;
            outline: none;
            display: none;
            position: absolute;
            right: 2.35rem;
            top: 1rem;
        }

        .clearfix:before, .clearfix:after {
            content: "";
            display: table;
        }

        .clearfix:after {
            clear: both;
        }

        .clearfix {
            *zoom: 1;
        }

        .header .back {
            width: 0.18rem !important;
            margin-top: 0.45rem !important;
            position: absolute !important;
            left: 0.3rem !important;
            z-index: 99999 !important;
        }

            .header .back img {
                display: block;
                vertical-align: middle;
            }

        .tabs {
            position: fixed;
            width: 100%;
            height: 1.57rem !important;
            background: #fff;
            left: 0;
            bottom: 0;
            z-index: 999;
            display: flex
        }

            .tabs .tab {
                flex: 1;
                height: 100%;
                display: flex;
                align-items: center;
                justify-content: center
            }

                .tabs .tab .tablink {
                    display: flex;
                    flex-direction: column;
                    align-items: center;
                    justify-content: center;
                    color: #333
                }

                    .tabs .tab .tablink img {
                        width: 0.64rem !important;
                        height: 0.64rem !important;
                        margin-bottom: .1rem !important;
                    }

                    .tabs .tab .tablink .acitve {
                        color: #1bad89
                    }

        .header {
            z-index: 9999 !important;
        }

        .m-product-main img {
            width: auto !important;
        }

        .nav-header-logo {
            width: 1.5rem;
        }

        .nav-header h3 {
            color: #151515;
            font-size: 0.35rem;
            text-align: center;
            line-height: 0.4rem;
            border-left: 0 !important;
            font-family: 'pingfang-medium';
            text-align: center;
            width: 3.7rem;
        }

        .nav-logo-lis ul li img {
            display: block;
            width: 1.35rem;
            text-align: center;
            margin: 0 auto;
        }

        .nav-logo-lis ul li span {
            display: block;
            color: #272727;
            font-size: 0.3rem;
            text-align: center;
            margin: 0.1rem 0 0 0;
            font-family: 'pingfang-medium';
            line-height: 0.35rem;
        }

        .nav-lis ul li {
            text-align: center;
            text-align: center;
            margin: 0.4rem 0.25rem 0 0;
        }

            .nav-lis ul li a {
                display: block;
                width: 1.2rem;
                height: 0.5rem;
                border-radius: 0.5rem;
                line-height: 0.5rem;
                color: #ffffff;
                background: #63d8b1;
                font-size: 0.2rem;
                font-family: 'pingfang-medium';
            }

        .nav-logo-lis {
            padding: 0.5rem;
            background: #fff;
            margin: 0.2rem 0 0 0;
            text-align: center;
        }

        .nav-header-close {
            width: 0.5rem;
        }

        .about {
            height: auto !important;
        }

        .about-para {
            height: auto !important;
        }

        .m-product-nav > div {
            line-height: .39rem;
        }
        .about-lis-wap {
            width: auto !important;
            flex-wrap: wrap;
            background: #f5f5f5;
            padding: 0.1rem 0.4rem 1rem;
            display: flex;
            justify-content: space-between;
            text-align: center;
        }

        .m-product-lis-title {
            width: 100%;
            color: #333333;
            font-size: .16rem;
            line-height: .17rem;
            border-bottom: 1px solid #b5b5b5;
        }

        .contact-lis1 img {
            width: auto !important;
            display: inline;
        }

        .case-wrap1 {
            width: auto !important;
        }
        #subject {
            margin-bottom: 1.57rem !important;
            margin-top: 1.18rem;
        }
    }