.banner {
    position: relative;
    padding-bottom: calc(760/1920*100%);
    overflow: hidden;
}

.banner img {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
}

@keyframes slideBannerA {
    0%   {opacity: 0; transform: scale(1);}
    30%  {opacity: 1; transform: scale(1.1);}
    40%  {opacity: 1;}
    50%  {opacity: 1;}
    65%  {opacity: 0;transform: scale(1.1);}
    90%  {opacity: 0;transform: scale(1);}
    100% {opacity: 0;}
}

@keyframes slideBannerB {
    0%   {opacity: 0; transform: scale(1);}
    30%  {opacity: 1; transform: scale(1.1);}
    40%  {opacity: 1;}
    50%  {opacity: 1;}
    65%  {opacity: 0;transform: scale(1.1);}
    90%  {opacity: 0;transform: scale(1);}
    100% {opacity: 0;}
}

@keyframes slideText {
    0%   {opacity: 0;}
    30%  {opacity: 1;}
    40%  {opacity: 1;}
    50%  {opacity: 1;}
    65%  {opacity: 0;}
    90%  {opacity: 0;}
    100% {opacity: 0;}
}

#b1a {
    animation-name: slideBannerA;
    animation-duration: 16s;
    animation-iteration-count: infinite;
}

#b1b {
    animation-name: slideBannerB;
    animation-delay: 8s;
    animation-duration: 16s;
    animation-iteration-count: infinite;
}
.note ul{
    padding-inline-start: 11px;
    list-style: disc;
}
.note ul li{
    text-indent: 0px;
    padding-left: 8px;
}
.banner span {
    position: absolute;
    color: black;
    font-size: 12px;
    bottom: 10px;
    right: 10%;
    animation-name: slideText;
    animation-duration: 16s;
    animation-iteration-count: infinite;
}

.lattice .float_group > div {
    width: 50%;
    height: calc(49vw * 435 / 953);
    overflow: hidden;
}

.lattice .float_group > div img {
    width: 100%;
    vertical-align:middle;
}

.lattice .float_group > div .title{
    color: #bd1622;
    font-size: 24px;
    font-weight: bold;
    line-height: 1.1;
}
.lattice .float_group > div .text{
    color: #494949;
    margin: 10px 0 20px;
}
.lattice .float_group > div a{
    display: inherit;
    text-decoration: none;
}
.lattice .float_group > div button {
    position: relative;
    width: 120px;
    height: 40px;
    margin-left: calc(50% - 60px);
    border: 0;
    outline: 0;
    background: linear-gradient(to right, #225ac9, #83caf7);
    color: white;
    font-size: 14px;
    overflow: hidden;
    text-align: left;
    padding: 0 32px;
    transition: width .2s ease-in-out, background .2s ease-in-out;
    cursor: pointer;
}
.lattice .float_group > div button:hover {
    width: 130px;
}
.arrow_right {
    position: absolute;
    pointer-events: none;
    left: 130px;
    top: 14px;
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 10px solid white;
    transition: left .2s ease-in-out;
}
.lattice .float_group > div button:hover .arrow_right {
    left: 105px;
}

.step {
    padding: 80px 20px 20px;
    background-color: #dfebef;
    text-align: center;
}
.step .title {
    color: #1980cf;
    font-size: 24px;
    font-weight: bold;
    line-height: 1.1;
}
.step .text{
    color: #494949;
    margin-top: 10px;
}

.step .item{
    display: inline-block;
    margin: 20px 40px 0;
}
.step .item .text1{
    color: #1980cf;
    font-size: 20px;
}
.step .item .text2{
    color: #494949;
}

.step .note {
    font-size: 12px;
    text-align: right;
    margin-top: 60px;
    padding-right: 10%;
}

@media (max-width:1200px) {
    .lattice .float_group > div {
        width: 100%;
        height: unset;
        margin-top: 40px;
    }

    .lattice .float_group > div .flex_direction_vertically_center {
        padding: 0 40px;
    }

    .step .item{
        margin: 20px 26px 0;
    }
    .step .note {
        padding-right: 0;
    }
}

@media (max-width:768px) {
    .banner {
        padding-bottom: calc(1460/1020*100%);
    }

    .banner span {
        right: 10px;
        writing-mode: vertical-rl;
        -webkit-writing-mode: vertical-rl;
        text-orientation: upright;
    }

    .step .group {
        /*max-width: 300px;*/
        margin-left: auto;
        margin-right: auto;
    }
    .step .item{
        margin: 20px 10px 0;
    }
    .smile{
        width: 100% !important;
    }
    .smile1 {
        margin: 20px 0px 0 !important;
    }
    .text5{
        padding: 0 40px;
    }
}
.logo {
    position: absolute;
    top: 0;
    right: 43.5%;
    width: 13.529%;
    height: 17.37%;
    cursor: pointer;
}
.step .text0{
    color: #494949;
    margin: 10px 0 20px;
}
.smile{
    width: 100%;
}


<style type="text/css">
        .test {
            display: block;
            bottom: 0px;
            right: 1px;
            position: fixed;
        }

        * html .test {
            position: absolute;
        }

        *+html .test {
            position: absolute;
        }

        .test1 {
            right: 15px;
            bottom: 290px;
            color: #000;
            opacity: 0;
            height: 30px;
            width: 30px;
        }

        .mobile {
            display: none;
        }

        .web {
            display: inline;
        }

        @media (max-width: 768px) {
            .mobile {
                display: inline;
            }

            .test2 {
                padding-left: 0px;
            }

            .web {
                display: none;
            }

            .test {
                display: block;
                position: fixed;
                right: auto;
                top: 50%;
                left: 50%;
                -moz-transform: translate(-50%, -50%);
                -ms-transform: translate(-50%, -50%);
                -webkit-transform: translate(-50%, -50%);
                transform: translate(-50%, -50%);
            }

            .test1 {
                opacity: 0;
                top: 31%;
                left: 92%;
                height: 30px;
                width: 30px;
                font-size: 36px;
            }
        }

        .pp_social {
            display: none;
        }

        #v_box {
            width: 700px;
            height: 460px;
            background: #fff;
            position: fixed;
            top: 50%;
            left: 50%;
            z-index: 522222;
            margin-top: -305px;
            margin-left: -350px;
            border-radius: 5px;
            box-shadow: #333 0px 0px 10px;
            _position: absolute;
            *border: 1px solid #333;
            border: 1px solid #333;
            display: none;
        }

        #v_box h3 {
            color: #333;
            height: 10px;
            font-size: 18px;
            padding-left: 28px;
            line-height: 46px;
            overflow: hidden;
            font-weight: bold;
        }

        #v_box div {
            width: 650px;
            margin: 0 auto;
            background: #000;
        }

        #shut {
            position: absolute;
            width: 30px;
            height: 30px;
            display: block;
            top: 8px;
            right: 10px;
            color: #333;
            font-size: 30px;
            line-height: 22px;
            overflow: hidden;
            text-align: center;
            cursor: pointer;
        }

        #shut:hover {
            text-decoration: none;
            color: #f00;
        }

        #shut:active {
            color: #a40606;
        }

        .h1::after {
            position: absolute;
            content: '';
            display: block;
            height: 6px;
            width: 220px;
            border-top: 4px dotted #D6D6D6;
            left: 154px;
            top: 9px;
        }

        .li7 span {
            margin-right: -2px;
        }
        .jia{margin-bottom: 90px !important;color: #bd1622;font-size: 64px;}
        .banner-web{display: inline;}
        .banner-mobile{display: none;}
        .title_moblie{display: none;}
        @media (max-width: 768px){
            .banner-web{display: none;}
            .banner-mobile{display: inline;}
            .text3 div{display: inline-block !important;width: auto !important;}
            .text3 img{width: 80px;height: 80px;}
            .text2 span{display: block;}
            .jia{margin-bottom: 64px !important;font-size: 40px;}
            .title{display: none;}
            .title_moblie{display: block;}
        }
</style>
<style type="text/css">
    .mx-tip-panel:focus {
        outline: 0;
    }

    .mx_keyword {
        line-height: 20px;
        color: #333333;
        font-size: 14px;
        letter-spacing: 0.2px;
        font-family: PingFangSC-Semibold;
    }

    .mx-scrollbar::-webkit-scrollbar {
        width: 8px;
        height: 1px;
    }

    .mx-scrollbar {
        overflow-y: auto;
        max-height: 380px;
    }

    .mx-scrollbar::-webkit-scrollbar-thumb {
        border-radius: 4px;
        background: #C0C0C0;
    }

    .mx-scrollbar::-webkit-scrollbar-track {
        border-radius: 4px;
        background: #eeeeee;
    }

    .maxthon_tip {
        background-color: white;
        border: none;
    }

    .maxthon_tip:active {
        background-color: #E6F4FF;
        border: 1px solid #449EFB;
    }

    .maxthon_tip:hover {
        background-color: #E6F4FF;
        border: 1px solid #449EFB;
    }
</style>