#nav {
  position: fixed;
  right: 20px;
  bottom: 274px;
  width: 50px;
}
#nav > div {
  position: relative;
  border-radius: 4px;
  background-color: #94d170;
}
#nav > div:hover {
  background-color: #49b849;
}
#nav .list1 {
  margin-bottom: 10px;
  padding: 10px;
}
#nav .list1 .qrcode {
  display: none;
  position: absolute;
  left: -170px;
  bottom: 0;
  width: 150px;
  height: 150px;
  padding: 5px;
  box-sizing: border-box;
  border: 1px solid #e6e6e6;
  border-radius: 4px;
  background: #fff;
}
#nav .list1 .qrcode .tri {
  position: absolute;
  right: -10px;
  top: 121px;
  width: 0px;
  height: 0px;
  border-right: none;
  border-left: 10px solid  #e6e6e6;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}
#nav .list1 .qrcode .tri::after {
  content: '';
  position: absolute;
  left: -10px;
  top: -5px;
  width: 0px;
  height: 0px;
  border-right: none;
  border-left: 8px solid #fff;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}
#nav .list1:hover .qrcode {
  display: block;
}
#nav .list2 {
  height: 80px;
  box-sizing: border-box;
  padding: 8px;
}
#nav .list2 a p {
  margin-top: 7px;
  text-align: center;
  font-size: 16px;
  line-height: 18px;
  color: #fff;
}
#nav .list2 .words {
  display: none;
  position: absolute;
  left: -264px;
  top: 0px;
  width: 246px;
  height: 410px;
  border: 1px solid #e6e6e6;
  border-radius: 4px;
  padding: 18px 12px 0;
  box-sizing: border-box;
  background: #fff;
}
#nav .list2 .words div:nth-child(1) p {
  float: left;
  font-size: 16px;
  line-height: 16px;
  color: #49b849;
}
#nav .list2 .words div:nth-child(1) div.close {
  float: right;
  width: 16px;
  height: 16px;
  background: url('../images/Xm.png');
  cursor: pointer;
  margin-bottom: 13px;
}
#nav .list2 .words form {
  width: 100%;
}
#nav .list2 .words form textarea {
  width: 100%;
  height: 120px;
  padding: 10px;
  background: #f0f0f0;
  resize: none;
  outline: none;
  border-radius: 4px;
  border: 1px solid #e6e6e6;
  box-sizing: border-box;
  font-size: 14px;
  line-height: 18px;
  color: #848383;
  overflow: hidden;
}
#nav .list2 .words form input {
  width: 100%;
  height: 34px;
  margin-top: 10px;
  background-color: #f0f0f0;
  outline: none;
  border-radius: 4px;
  border: 1px solid #e6e6e6;
  background-repeat: no-repeat;
  background-position: 8px center;
  font-size: 14px;
  line-height: 18px;
  color: #848383;
  padding-left: 30px;
  padding-right: 5px;
  box-sizing: border-box;
}
#nav .list2 .words form input:nth-of-type(1) {
  background-image: url('../images/renl.png');
}
#nav .list2 .words form input:nth-of-type(2) {
  background-image: url('../images/dianh.png');
}
#nav .list2 .words form input:nth-of-type(3) {
  background-image: url('../images/diz.png');
}
#nav .list2 .words form input:nth-of-type(4) {
  background-image: url('../images/email.png');
}
#nav .list2 .words form .submit {
  background: #94d170;
  color: #fff;
  text-align: center;
  cursor: pointer;
}
#nav .list2 .words form .submit:hover {
  background: #49b849;
}
#nav .list2 .words form .tri {
  position: absolute;
  right: -10px;
  top: 27px;
  width: 0px;
  height: 0px;
  border-right: none;
  border-left: 10px solid  #e6e6e6;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
}
#nav .list2 .words form .tri::after {
  content: '';
  position: absolute;
  left: -10px;
  top: -5px;
  width: 0px;
  height: 0px;
  border-right: none;
  border-left: 8px solid #fff;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}
#nav .list3 {
  height: 50px;
  margin-top: 10px;
  box-sizing: border-box;
  background: rgba(0, 0, 0, 0.18);
  padding: 8px;
  cursor: pointer;
  text-align: center;
  overflow: hidden;
}
#nav .list3 > div {
  transition: .5s;
}
#nav .list3 img {
  margin-top: 2px;
  display: inline-block;
  vertical-align: middle;
}
#nav .list3 p {
  text-align: center;
  font-size: 16px;
  line-height: 18px;
  color: #fff;
}