.w {
  margin:0 auto;
  width:1100px;
}
.clearfix:after {
  content: "";
  height: 0;
  line-height: 0;
  display: block;
  clear: both;
  visibility: hidden;
}
.clearfix {
  zoom: 1;
}
/* 当前所在页位置及标题 */
.crumbs .public {
  font-weight: 700;
  color:#333;
  font-size: 16px;

}

.crumbs a {
  text-decoration:none;
  transition: all 0.5s linear;
}
.crumbs a:hover {
  color:#3ca7b5;
}
.product_banner {
  text-align: center;
  margin-bottom:54px;
}
.product_banner>h1 {
  font-size: 24px;
  font-weight:700;
  margin-top: 20px;
  color:#333;
}
.product_banner p {
  height:40px;
  font-size: 18px;
  border-bottom:1px solid #dbdbdb;
  box-sizing: border-box;
  color:#676767;
  line-height: 40px;
}
/* 产品内容开始 */
.content {
  margin-bottom: 80px;
}
h2 {
  font-size:22px;
  color:#333;
  font-weight: 700;
  margin-bottom:10px;
}
.content p {
  font-size: 18px;
  color:#333;
  text-indent: 2em;
  margin-bottom:30px;
  line-height: 35px;
}
.content .cloud {
  list-style: none;
  font-size: 16px;
  text-indent:3em;
}

.content li {
  list-style: circle;
  font-size: 18px;
  color:#3ca7b5;
  margin-bottom: 30px;
  list-style-position: inside;
}
.content fieldset {
  border-width: 2px;
  border-style: groove;
  border-color:threedface;
  border-image: initial;
  padding:10px;
  border-radius: 50px;
  margin-top: 30px;
}
.content legend {
  border-width: initial;
  border-style: none;
  border-color: initial;
  border-image: initial;
  width:auto;
  font-size: 20px;
  margin-left:50px;
}
.content .function_left {
  float:left;
  margin-left:10px;
  margin-bottom:30px;
}
.content .function_right {
  float:right;
  margin-right: 10px;
  margin-bottom:30px;
}