.w {
  width: 1000px;
  margin: 0 auto;
  display: table;
}
/*清除元素默认的内外边距  */
* {
  margin: 0;
  padding: 0;
}
/*让所有斜体 不倾斜*/
em,
i {
  font-style: normal;
}
/*去掉列表前面的小点*/
li {
  list-style: none;
}
/*图片没有边框   去掉图片底侧的空白缝隙*/
img {
  border: 0; /*ie6*/
  vertical-align: middle;
}
/*让button 按钮 变成小手*/
button {
  cursor: pointer;
}
/*取消链接的下划线且修改字体颜色*/
a {
  color: #666;
  text-decoration: none;
}

button,
input {
  font-family: "Microsoft YaHei", "Heiti SC", tahoma, arial, "Hiragino Sans GB", \\5B8B\4F53, sans-serif;
}

body {
  background-color: #fff;
  font: 12px/1.5 "Microsoft YaHei", "Heiti SC", tahoma, arial, "Hiragino Sans GB", \\5B8B\4F53, sans-serif;
  color: #666;
}
/*隐藏元素*/
.hide,
.none {
  display: none;
}
/*清除浮动*/
.clearfix:after {
  visibility: hidden;
  clear: both;
  display: block;
  content: ".";
  height: 0;
}
.clearfix {
  *zoom: 1;
}
/*左浮动*/
.fl {
  float: left;
}
/*右浮动*/
.fr {
  float: right;
}

/* 头部 */
.logo_sea {
  margin: 10px auto;
}
.logo img {
  height: 70px;
}
/* nav */
.hea_nav {
  width: 100%;
  background: #c00100;
}
.clearfix:after {
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
.nav {
  height: 50px;
  line-height: 50px;
  background: #c00100;
  position: relative;
  z-index: 1;
display: block;
}
.nav a {
  color: #fff;
}
.nav .nLi {
  float: left;
  position: relative;
  display: inline;
}
.nav .nLi h3 {
  float: left;
}
.nav .nLi h3 a {
  display: block;
  padding: 0px 25px;
  font-weight: bold;
  font-size: 16px;
  color: rgb(255, 255, 255);
  text-align: center;
  position: relative;
}
.nav .sub {
  display: none;
  width: 100%;
  left: 0;
  top: 50px;
  position: absolute;
  background: #ebebeb;
  line-height: 26px;
  padding: 5px 0;
}
.nav .sub li {
  zoom: 1;
}
.nav .sub a {
  display: block;
  padding: 5px 0;
  text-align: center;
  color: #484848;
  font-size: 16px;
}
.nav .sub a:hover {
  color: #900;
  background: #ccc;
}
.nav .on h3 a {
  background: rgb(157, 43, 25);
  color: rgb(255, 255, 255);
}
/* 头部 */

/* 尾部 */
.foot {
  height: 135px;
  line-height: 24px;
  text-align: right;
  background: #ccc;
  margin-top: 80px;
}
.foot p {
  padding: 20px 0 0 0;
  font-size: 16px;
  line-height: 35px;
}
/* 尾部 */