.banner img {
    width: 100%;
    opacity: 1;
}

@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;
}

.banner span {
    position: absolute;
    color: #494949;
    font-size: 12px;
    bottom: 10px;
    right: 10%;
    animation-name: slideText;
    animation-duration: 16s;
    animation-iteration-count: infinite;
}

.lattice .float_group > div {
    width: 100%;
    height: calc(49vw * 435 / 953);
}

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

.lattice .float_group > div .title{
    color: #1980cf;
    font-size: 30px;
    letter-spacing: 3px;
    font-weight: 900;
    line-height: 1.1;
    padding-bottom: 20px;
    padding-top: 30px;
}
.lattice .float_group > div .text{
    color: #494949;
    font-size: 20px;
    margin: 10px 0;
    padding-bottom: 25px;
}
.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%;
}
section.lattice {
    height: 46vw;
}
.lattice .float_group > div .bgc{
    background-color: #78b43c;
    height: 46vw;
}
.playVedio{
    width: 100%;
    height: 35vw;
    padding: 0 15%;
}
.playVedio iframe{
    width:100%;
    height: 35vw;
}
.playVedio img{
    width:100%;
    height: 35vw;
}
.usageRules{
    padding: 40px 0;
    padding-left: 25%;
    font-size: 12px;
    background-color: #ffd4a7;
    text-align: justify;
    color: #494949;
}
.usageRules .rules{
    text-align: left;
    width: 70%;
    text-align: justify;
}
#form .header {
    padding: 0px 0 40px;
}
.lastPart{
    background-color: #ffaa50;
    height: 20px;
}
#form .header .text1 h3{
    font-size: 30px;
    letter-spacing: 5px;
    padding-top: 10px;
}
#form .header .text1 span{
    font-size: 20px;
    font-weight: 500;
}
#form .header .text3{
    padding: 20px 0 40px;
}
.step .sec_step{
    width: 80%;
    margin: auto;
}
.text3_brief{
    color: #494949;
    font-size: 17px;
}
.text3 {
    color: #ffaf24!important;
    font-size: 22px;
    padding-top: 20px;
    font-weight: bold;
}
.lg_hiden{
    display: none!important;
}
.hm_show{
    display: inline-block;
 }
 .hm_hiden{
    display: none;
 }



@media (max-width:1200px) {
    .lattice .float_group > div {
        width: 100%;
        height: unset;
        margin-top: 0px;
    }

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

    .step .item{
        margin: 20px 26px 0;
    }
    .step .note {
        padding-right: 0;
    }
    section.lattice {
        height: 55vw;
    }
    .lattice .float_group > div .bgc{
        height: 55vw;
    }
}



@media (max-width:768px) {
    .banner span {
        right: 10px;
        writing-mode: vertical-rl;
        -webkit-writing-mode: vertical-rl;
        text-orientation: upright;
    }
    .lattice .float_group > div .bgc{
        height: 75vw;
        padding-top: 20px;
    }
    .lattice .float_group > div .title{
        font-size: 25px;
        padding-bottom: 10px;
    }
    section.lattice {
        height: 65vw;
    }
    .usageRules{
        padding-left: 7%;
        width: 100%;
    }
    .usageRules .rules{
        width: 90%;
    }

    .step .group {
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }
    .step .item{
        margin: 20px 10px 0;
    }
    .step .sec_step{
        width: 86%;
    }
    .step .text{
        text-align: center;
    }
    #form .header .text1 h3{
        padding-top: 20px;
    }
    .playVedio{
        width: 100%;
        height: 40vw;
        padding: 0 7%;
    }
    .playVedio iframe{
        width:100%;
        height: 40vw;
    }
    .playVedio img{
        width:100%;
        height: 40vw;
    }
    .lattice .float_group > div .text{
        text-align: center;
        font-size: 18px;
        width: 80%;
        margin: auto;
    }
    .xm_hiden{
        display: none!important;
    }
    .lg_hiden{
        display: block!important;
    }

}

@media (max-width:499px) {
    section.lattice {
        height: 75vw;
    }
    .lattice .float_group > div .text{
        font-size: 15px;
        margin-bottom: 15px;
        padding-top: 10px;
    }
    .lattice .float_group > div .title{
        font-size: 20px;
        padding-top: 25px;
    }
    .lattice .float_group > div .bgc{
        height: 75vw;
    }
    .playVedio{
        width: 100%;
        height: 45vw;
        padding: 0 0;
    }
    .playVedio iframe{
        width:100%;
        height: 45vw;
    }
    .playVedio img{
        width:100%;
        height: 45vw;
    }
    .text3{
        font-size: 16px;
    }
    .text3 img{
        width: 60px;
        height: 60px;
    }
    .text3_brief{
        font-size: 12px;
    }
    .jia{
        margin-bottom: 71px !important;
    }
    #form .header .text1 h3{
        font-size: 24px;
    }    
    .lattice .float_group > div .flex_direction_vertically_center{
        padding: 14px 25px 0;
    }
}