.overview-content { font-size:16px;font-weight:300; overflow-x:hidden; margin:0 auto; max-width:1920px; min-width:1024px; }
 .overview-content .w1366 { margin:0 auto; position:relative; width:85.375em; }
 .overview-content .w1440 { margin:0 auto; position:relative; width:90em; }
 .overview-content .nowrap { white-space: nowrap; }
 .overview-content .regular { font-weight:400; }
 .overview-content .medium { font-weight:500; }
 .overview-content .bold { font-weight:700; }
 .overview-content .clear:after{content: '';display: block;clear: both;}
 .overview-content .text h2 { font-size:3.125em; line-height:1.2; }
 .overview-content .text p { font-size:1.25em; line-height:1.5; padding-top:1em; }
 @media screen and (max-width:1440px){
   .overview-content { font-size:1.1111111vw; }
 }
 @media screen and (max-width:736px){
   html { font-size:10.35px; }
   .overview-content { min-width:320px; }
   .overview-content .w1366 { width:auto; }
   .overview-content .text h2 { font-size:2.5rem; padding:4rem 8% 2rem; }
   .overview-content .text p { font-size:1.75rem; padding:0 8% 3rem; }
 }
 /************************************************************************************/
 .overview-content .a{background: url(a.jpg) center no-repeat;height: 59em;}
 .overview-content .a .text{padding: 8.5em 0 0;}
 .overview-content .a .text h2 span{font-size: 1.45em;}
 .overview-content .a .text p{font-size: 1.875em;}
 .overview-content .b .text{padding: 5em 0;width: 50%;margin: 0 auto;text-align: center;}
 .overview-content .b .bg{background: url(b.jpg) center no-repeat;height: 0;padding-bottom: 36%;position: relative;}
 .overview-content .b .bg .desc{position: absolute;width: 7%;color: #fff;top:43%;line-height: 1.1;}
 .overview-content .b .bg .desc1{right:50.75%;text-align: right;}
 .overview-content .b .bg .desc2{left:50.75%;text-align: left;}
 .overview-content .b .bg .desc .num{font-size: 2.375em;font-weight: 500;}
 .overview-content .b .bg .desc .mbps{font-size: 1.875em;font-weight: 500;}
 .overview-content .b .bg .desc .ghz{font-size: 1.35em;line-height: 1.3;}
 .overview-content .c{background: #bfbcba url(c.jpg) bottom no-repeat;padding-bottom: 42em;}
 .overview-content .c .text{padding: 5em 5em 3em;text-align:center;}
 .overview-content .d{background: #e6bfbb url(d.jpg) center right no-repeat;background-size: auto 100%;min-height: 30em;}
 .overview-content .d .text{width: 45%;text-align: center;padding: 10em 0;}
 .overview-content .e{background: #f7dbd5 url(e.jpg) center left no-repeat;background-size: auto 100%;min-height: 30em;}
 .overview-content .e .text{float:right;width: 45%;text-align: center;padding: 10em 0;}
 .overview-content .j{position:relative;background: #e6eced url(g.jpg) bottom/100% auto no-repeat;padding-bottom: 34%;}
 .overview-content .f{background: url(f.jpg) center no-repeat;height: 62em;}
 .overview-content .f .text{padding: 7em 0 0;width: 48%;}
 .overview-content .f .text .qrcode{display: block;width: 10em;margin-top: 1.75em;}
.overview-content .j .text{padding: 5.5em 13% 4em;text-align:center;}
.overview-content .j .bg-desc{position:absolute;bottom:0;left:0;width:100%;height:0;padding-top:30%;}
.overview-content .j .bg-desc .desc{position:absolute;color:#36444b;top:17%;left:42%;width:17%;text-align:center;font-size:1.875em;}
.overview-content .j .bg-desc .desc h3{font-size:1.5em;font-weight:500;padding-bottom:0.25em;}
.overview-content .j .bg-desc .desc .model{color: #fff;display: inline-block;border-radius: .5em;margin-top:.875em;padding: .1em .2em;font-size:.875em;background: #3e6c89;}
.overview-content .k{background: #a0aab5;}
.overview-content .k .text{padding: 4.75em 0 4em;text-align:center;}
.overview-content .k .text p+p{padding-top: 0;}
.overview-content .k .bg{position:relative;background: url(k.jpg) top/100% auto no-repeat;height:0;padding-bottom:40%;}
.overview-content .k .bg .desc{position:absolute;width: 40%;font-size: 1.5em;font-weight: 500;text-align: center;}
.overview-content .k .bg .desc1{top: 9%;left:13%;}
.overview-content .k .bg .desc2{top: 72%;left:49.5%;}
@media screen and (max-width:736px){
  .overview-content .a { background:url(m/a.jpg) 50% 0 / 100% 100% no-repeat; height:0; padding-bottom:133% }
  .overview-content .a .text { margin:0 auto; padding:10% 0 0; width:auto; }
  .overview-content .a .text h2 { font-size:8vw; padding:0 8%;font-weight:300; }
  .overview-content .a .text p { font-size:5vw;padding:3vw 8%; }
  .overview-content .b .text { color:#323232; padding:0; text-align:left; width:auto; }
  .overview-content .b .bg { background-image:url(m/b.jpg);background-size: 100% auto; margin:0; height:0; padding-bottom:89%; }
  .overview-content .b .bg .desc{font-size:3vw;width:20%;top:49%;}
  .overview-content .c{background-image: url(m/c.jpg);background-size: 100% auto;padding-bottom: 56%;}
  .overview-content .c .text{padding:0;}
  .overview-content .d{min-height:auto;padding-bottom: 87%;background:#e6bfbb url(m/d.jpg) bottom/100% auto no-repeat;}
  .overview-content .e{min-height:auto;padding-bottom: 87%;background:#f7dbd5 url(m/e.jpg) bottom/100% auto no-repeat;}
  .overview-content .d .text,.overview-content .e .text{padding:0;width:auto;text-align: left;}
  .overview-content .f{background:#d1d2d2 url(m/f.jpg) bottom/100% auto no-repeat;padding-bottom: 100%;}
  .overview-content .f .text{padding: 0;width: auto;}
  .overview-content .f .text .qrcode{margin: 0 8%;width: 35vw;}
  .overview-content .j{background-image: url(m/g.jpg);padding-bottom: 170%;}
  .overview-content .j .text{padding: 0;}
  .overview-content .j .bg-desc{padding-top: 128%;}
  .overview-content .j .bg-desc .desc{font-size: 4vw;width: 80%;left:10%;}
  .overview-content .k .text{padding: 0;text-align: left;}
  .overview-content .k .bg{background-image: url(m/k.jpg);padding-bottom: 125%;}
  .overview-content .k .bg .desc{font-size: 4vw;width: 75%;}
  .overview-content .k .bg .desc1{top:4%;}
  .overview-content .k .bg .desc2{top:82%;left:12.5%}

}