body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
button,
textarea,
p,
blockquote,
th,
td {
  margin: 0;
  padding: 0;
}
ol,
ul {
  list-style: none;
}
img {
  border: 0;
}
a {
  text-decoration: none;
}
.nav {
  height: 84px;
  border-bottom: 1px solid #dddddd;
  -webkit-box-shadow: 0 1px 10px #cccccc;
  box-shadow: 0 1px 10px #cccccc;
}
.nav ul {
  width: 720px;
  height: 84px;
  margin: 0 auto;
}
.nav li {
  float: left;
}
.nav a {
  display: block;
  color: #999999;
  font-size: 18px;
  text-align: center;
  width: 180px;
  height: 80px;
  line-height: 80px;
  padding: 0 20px;
  margin: 0 10px;
}
.nav a:hover,
.nav .active {
  color: #333333;
  border-bottom: 4px solid #396db1;
  -webkit-transition: border 0.2s;
  transition: border 0.2s;
}
.content,
.download {
  width: 960px;
  margin: 40px auto;
}
.content img {
  width: 100%;
}
.download {
  margin-top: 60px;
}
.download_con {
  width: 800px;
  height: 200px;
  background-color: #c7daf1;
  /* border-radius: 10px; */
  padding: 60px 80px;
  margin-bottom: 0px;
  border-radius: 15px 15px 0 0;
}
.download_con:nth-child(2) {
  background-color: #b2cceb;
  border-radius: 0 0 15px 15px;
}

.download_con div {
  width: 200px;
  margin: 0 100px;
}
.download_name,
.download_img {
  float: left;
}
.download_name p {
  width: 200px;
  height: 80px;
  line-height: 80px;
  color: #666666;
  font-size: 28px;
  text-align: center;
  margin: 10px 0;
}
.download_name a {
  height: 60px;
  line-height: 60px;
  display: block;
  color: #ffffff;
  font-size: 24px;
  background-color: #396db1;
  padding: 5px 10px;
}
.download_name a:hover {
  background-color: #5083c5;
  -webkit-transition: background-color 0.3s;
  transition: background-color 0.3s;
}
.download_img img {
  width: 180px;
  height: 180px;
  border: 1px dashed #396db1;
  border-radius: 5px;
  vertical-align: middle;
  padding: 9px;
}
.notice {
  height: 60px;
  background-color: #75a3e0;
  border-radius: 30px;
  padding-top: 0;
  padding-bottom: 0;
  margin-top: 30px;
}
.notice p {
  float: left;
  width: 200px;
  height: 60px;
  line-height: 62px;
  color: #ffffff;
  margin: 0 100px;
}
.notice img {
  display: inline-block;
  width: 26px;
  height: 26px;
  vertical-align: text-bottom;
}