/*-----------------------------------------------------------------------------------*/
/*	2016-03-31 19:06:2j
/*-----------------------------------------------------------------------------------*/
body {
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 21px;
  letter-spacing: 0.2px;
  /*color: #b9b9b9;*/
  /*background-color:#efefef;*/
  background-color: #f1f1f1;
  color: black;
}
/*-----------------------------------------------------------------------------------*/
/* 首部(logo 菜单）
/*-----------------------------------------------------------------------------------*/
.header {
  position: fixed;
  top: 0;
  background-color: #2c3e50;
  height: 60px;
  width: 100%;
  color: #fff;
  padding: 10px;
}
span {
  font: 800 1.5em/1 'Open Sans', Impact;
  font-size: 150%;
  font-weight: bold;
}
.logo img {
  margin-left: 5%;
  float: left;
  height: 60px;
  width: 180px;
}

/*顶部菜单*/
.menu a {
  color: #bbb;
  text-decoration: none;
}
ul {
  list-style: none;
}
li {
  list-style: none;
}
.menu a:hover {
  text-decoration: none;
  color: white;
}
.menu {
  float: right;
  padding: 0;
  margin: 0;
  margin-right: 5%;
  width: 480px;
  height: 60px;
}
.menu ul li {
  position: relative;
  display: block;
  float: left;
  width: 140px;
  font-size: 25px;
  text-align: center;
  line-height: 40px;
}
.menu ul li a {
  text-align: center;
  display: block;
}
.menu ul li a:hover {
  text-decoration: underline;
}
.menu ul li ul {
  display: none;
}
.menu ul li:hover ul {
  padding: 0;
  top: 30px;
  display: block;
  position: absolute;
  background-color: #2c3e50;
  z-index: 999;
}
.menu ul li:hover ul li {
  height: 40px;
}
.menu ul li:hover ul li a {
  height: 50px;
  font-size: 80%;
}
.menu ul li ul li a:hover {
  font-size: 103%;
  font-weight: bold;
}

/*-----------------------------------------------------------------------------------*/
/* 首页座右铭
/*-----------------------------------------------------------------------------------*/
.header-bottom {
  position: fixed;
  top: 40px;
  left: 10px;
  font: 800 1.5em/1 'Open Sans', Impact;
  color: #ffffff;
  font-size: 30px;
}

.header-bottom a {
  margin-left: 5%;
}

/*-----------------------------------------------------------------------------------*/
/* 主题界面
/*-----------------------------------------------------------------------------------*/
.content {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  padding: 10px;
  width: 1280px;
  margin: 0 auto;
  margin-top: 80px;
}
.search {
  width: 100%;
  height: 30px;
  background-color: #eee;
}
.text1 {
  color: #777;
  float: left;
  left: 20px;
  margin: 15px;
  width: 850px;
  height: 500px;
  /*box-shadow:0 0 0 1px rgba(10,10,10,.2);*/
  background-color: #fff;
}
.text1 a {
  background-color: #fff;
}

.left-menu {
  width: 70%;
  height: 30px;
  margin-top: 35px;
  margin-bottom: 0;
  padding: 0;
}
.left-menu-container {
  float: left;
  position: relative;
  list-style: none;
  left: 0;
  width: 25%;
  height: 100%;
  color: #bbb;
  text-align: center;
  line-height: 30px;
  background-color: #123;
}
.display-contant {
  height: 500px;
  width: 70%;
  line-height: 60px;
  color: #eee;
  background-color: #2c3e50;
}
.thumbnail {
  box-shadow: 0 0 0 0 rgba(10, 10, 10, 0.2);
  display: inline-block;
  line-height: 0;
  max-width: 100%;
  transition: box-shadow 0.2s ease-out;
  border-radius: 0;
}
.thumbnail:focus,
.thumbnail:hover {
  box-shadow: 0 0 6px 2px rgba(33, 153, 232, 0.5);
}

/*-----------------------------------------------------------------------------------*/
/*回顶按钮*/
/*-----------------------------------------------------------------------------------*/
#shangxia {
  position: fixed;
  top: 75%;
  right: 66%;
  display: block;
  margin-right: -540px;
  z-index: 999;
}
#shang,
#comt,
#xia {
  background: url(../image/huadong.png) no-repeat;
  position: relative;
  cursor: pointer;
  height: 30px;
  width: 29px;
  margin: 10px 0 0;
}
#comt {
  background-position: left -30px;
  height: 32px;
}
#xia {
  background-position: left -68px;
}
#comt:hover {
  background-position: right -30px;
}
#shang:hover {
  background-position: right 0;
}
#xia:hover {
  background-position: right -68px;
}

/*-----------------------------------------------------------------------------------*/
/*底部*/
/*-----------------------------------------------------------------------------------*/
.bottom {
  color: #999;
}
.copyright {
  text-align: center;
  font-size: 10px;
  font-family: arial;
}
.copyright span {
  font-family: arial;
}

.nav-item {
  display: block;
  width: calc(33.3% - 20px);
  text-decoration: none;
  color: #999;
  height: 120px;
  padding: 20px;
  background: #fff;
  border-radius: 5px;
  margin: 10px;
  box-sizing: border-box;
}
.nav-item:hover{
	box-shadow: 0 0 10px #ddd;
}
.nav-item__title {
  font-size: 18px;
  line-height: 36px;
}
.nav-item__text {
  font-size: 14px;
}