/* 头部导航 */
#head {
  width: 1200px;
  margin: 0 auto;
  height: 120px;
}

.logo {
  float: left;
  margin-top: 24px;
}

.nav {
  float: right;
}

.nav > div {
  float: left;
  height: 120px;
  line-height: 120px;
  padding: 0 25px;
}

.nav > div:last-child {
  padding-right: 0px;
}

.nav > div > a {
  text-decoration: none;
  font-size: 18px;
  color: #333333;
}

.nav > div > ul {
  z-index: 10;
  background-color: white;
  top: 120px;
  left: 2px;
  width: 210px;
  position: absolute;
  background-color: white;
  padding: 10px 20px;
  display: none;
}

.nav > div > ul > li {
  border-bottom: 1px solid #c2c2c2;
  height: 40px;
  line-height: 40px;
}

.nav > div > ul > li:last-child {
  border-bottom: none;
}

.nav > div > ul > li > a {
  font-size: 18px;
  color: #666666;
  text-decoration: none;
  display: inline-block;
  width: 205px;
}

.hover {
  display: none;
}

.nav > div > ul > li > a:hover {
  color: #d7000f;
}

.nav > div > ul > li > a:hover > .hover {
  display: block;
}

.nav > div > ul > li > a:hover > .unhover {
  display: none;
}

.nav > div > ul > li > a >img {
  float: right;
  margin-top: 15px;
}

.nav > div:hover > a {
  font-weight: bold;
  border-bottom: 2px solid #d7000f;
}

#product:hover  ul {
  display: block;
}

#product {
  position: relative;
}

#head .hot > a {
  color: #d7000f;
}