*{
    font-family: "微软雅黑", "Microsoft YaHei";
}
body{
    padding: 20px;
}
h1{
    font-size: 50px;
    line-height: 1.4;
    margin-bottom: 14px;
    border-bottom: 1px solid #e7e7eb;
    padding-bottom: 10px;
    font-weight: 400;
}
section{
    margin-top: 30px;
}
section h2{
    font-size: 42px;
    line-height: 1.4;
    font-weight: 600;
}
section p{
    color: rgb(100,100,100);
    font-size: 36px;
    line-height: 1.6;
    font-weight: 400;
    margin: 25px 0 0 0;
}
section b{
    font-weight: 400;
    font-size: 36px;
    line-height: 1.4;
    color: rgb(62,62,62);
}
.code{
    float: right;
    text-align: center;
    position: relative;
}
.code .code-container{
    position: relative;
    left: 50%;
    margin-left: -64px;
    width: 128px;
    height: 128px;
    background: url("http://www.xyaz.cn/gc/qr.php?down_url=http://www.xyaz.cn/help/vt.html") no-repeat center;
    background-size: 142px;
    filter : progid:DXImageTransform.Microsoft.AlphaImageLoader (sizingMethod='scale', src='http://www.xyaz.cn/gc/qr.php?down_url=http://www.xyaz.cn/help/vt.html')
}
.code img{
    width: 128px;
}
.code span{
    top:60px;
    left: 0;
    width: 128px;
    height: 8px;
    position: absolute;
    background: url("../img/code2.png") no-repeat center;
    animation: myfirst 5s linear infinite;
    -moz-animation: myfirst 5s linear infinite;	/* Firefox */
    -webkit-animation: myfirst 5s linear infinite;	/* Safari 和 Chrome */
    -o-animation: myfirst 5s linear infinite;	/* Opera */
}
@keyframes myfirst
{
    0%   {top:60px;}
    5%  {top:72px;}
    10%  {top:84px;}
    15% {top:96px;}
    20% {top:108px;}
    25% {top:120px;}
    30% {top:108px;}
    35% {top:96px;}
    40% {top:84px;}
    45% {top:72px;}
    50% {top:60px;}
    55% {top:48px;}
    60% {top:36px;}
    65% {top:24px;}
    70% {top:12px;}
    75% {top:0;}
    80% {top:12px;}
    85% {top:24px;}
    90% {top:36px;}
    95% {top:48px;}
    100% {top:60px;}
}

@-moz-keyframes myfirst /* Firefox */
{
    0%   {top:60px;}
    5%  {top:72px;}
    10%  {top:84px;}
    15% {top:96px;}
    20% {top:108px;}
    25% {top:120px;}
    30% {top:108px;}
    35% {top:96px;}
    40% {top:84px;}
    45% {top:72px;}
    50% {top:60px;}
    55% {top:48px;}
    60% {top:36px;}
    65% {top:24px;}
    70% {top:12px;}
    75% {top:0;}
    80% {top:12px;}
    85% {top:24px;}
    90% {top:36px;}
    95% {top:48px;}
    100% {top:60px;}
}

@-webkit-keyframes myfirst /* Safari 和 Chrome */
{
    0%   {top:60px;}
    5%  {top:72px;}
    10%  {top:84px;}
    15% {top:96px;}
    20% {top:108px;}
    25% {top:120px;}
    30% {top:108px;}
    35% {top:96px;}
    40% {top:84px;}
    45% {top:72px;}
    50% {top:60px;}
    55% {top:48px;}
    60% {top:36px;}
    65% {top:24px;}
    70% {top:12px;}
    75% {top:0;}
    80% {top:12px;}
    85% {top:24px;}
    90% {top:36px;}
    95% {top:48px;}
    100% {top:60px;}
}

@-o-keyframes myfirst /* Opera */
{
    0%   {top:60px;}
    5%  {top:72px;}
    10%  {top:84px;}
    15% {top:96px;}
    20% {top:108px;}
    25% {top:120px;}
    30% {top:108px;}
    35% {top:96px;}
    40% {top:84px;}
    45% {top:72px;}
    50% {top:60px;}
    55% {top:48px;}
    60% {top:36px;}
    65% {top:24px;}
    70% {top:12px;}
    75% {top:0;}
    80% {top:12px;}
    85% {top:24px;}
    90% {top:36px;}
    95% {top:48px;}
    100% {top:60px;}
}
.code p{
    color: #f00;
    font-size: 36px;
    line-height: 1.6;
    font-weight: 400;
    margin: 0;
}
section img{
    width: 100%;
}
span{
    color: rgb(13, 197, 160);
}
.text-center{
    text-align: center;
    margin: 12px 0;
    color: rgb(0, 128, 255);
}
.text-center a{
    color: rgb(0, 128, 255);
}
.mar0{
    margin:0;
    text-align: center;
}
@media screen and (min-width: 1025px){
    body{
        width: 670px;
        margin:0 auto;
    }
    h1{
        font-size: 24px;
    }
    section h2{
        font-size: 22px;
        line-height: 1.4;
        font-weight: 600;
    }
    section p{
        color: rgb(100,100,100);
        font-size: 16px;
        line-height: 1.6;
        font-weight: 400;
    }
    section b{
        font-weight: 400;
        font-size: 14px;
        line-height: 1.4;
    }
    .code p{
        color: #f00;
        font-size: 12px;
        line-height: 1.6;
        font-weight: 400;
    }
}