/* 通用 */
/* 去除高度塌陷、重叠，（BFC） */
.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
  clear: both;
}
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: "Microsoft YaHei", "微软雅黑", "Arial", sans-serif;
}
/* BG */
/* 底层背景样式 */
#bg_all {
  overflow: hidden;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  min-width: 325px;
  min-height: 620px;
  background-image: url(../images/background/bg_001.jpg);
  background-repeat: no-repeat;
  background-position: center;
  background-size:cover;
}
#up {
  text-align: center;
  position: relative;
  top: 1%;
  height: 15%;
  width: 100%;
}
.title_ic {
  position: relative;
  top: 50%;
  transform: translate(0, -40%);
  width: 80%;
  max-width: 450px;
  filter: drop-shadow(0px 0px 10px rgb(50, 50, 200));
}
#down {
  position: absolute;
  bottom: 3%;
  height: 80%;
  width: 100%;
}
h1 {
  position: relative;
  top: 2%;
  font-size: 20px;
  text-align: center;
  color: white;
  text-shadow: 0px 0px 10px rgb(50, 50, 200);
}
h2 {
  font-size: 25px;
  text-align: center;
  color: white;
  text-shadow: 0px 0px 10px rgb(50, 50, 200);
}
h3 {
  font-size: 20px;
  text-align: center;
  color: white;
  text-shadow: 0px 0px 10px rgb(50, 50, 200);
}
.left {
  position: absolute;
  top: 50%;
  width: 100%;
  height: 45%;
  text-align: center;
}
.left .links1 {
  position: relative;
  top: 5%;
  font-size: 30px;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  font-weight: bold;
  padding: 0px 30px;
  text-shadow: 0px 0px 10px rgb(50, 50, 200);
  background-color: rgb(160, 198, 255, 0.3);
}
#QR_Z_code {
  position: absolute;
  bottom: 0px;
  width: 100%;
  height: 70%;
}
.left .QR_Z_code {
  position: absolute;
  border-radius: 10px;
  top: 30%;
  left: 50%;
  transform: translate(-50%);
  height: 80%;
}
.right {
  position: absolute;
  top: 5%;
  width: 100%;
  height: 45%;
  text-align: center;
}
#introduce {
  position: relative;
  top: 10px;
  line-height: 15px;
  width: 100%;
  height: 45%;
  border-radius: 10px;
  padding-top: 5px;
  background-color: rgb(160, 198, 255, 0.3);
  overflow-x: hidden;
  overflow-y: scroll;
}
#introduce::-webkit-scrollbar {
  width: 6px; 
}
#introduce:hover::-webkit-scrollbar-thumb {
  background: rgba(3, 48, 100, 0.5);
  border-radius: 3px;
}
#introduce::-webkit-scrollbar-thumb:hover {
  background: rgba(39, 129, 231, 0.5); 
}
#introduce h3 {
  padding: 0px 20px 0px 20px;
  font-size: 15px;
  text-align: left;
  text-indent: 2em;
}
#contact_box {
  position: absolute;
  bottom: 5px;
  line-height: 20px;
  width: 100%;
}
#contact_box a {
  color: rgb(200, 200, 200);
}
#contact_box h2 {
  font-size: 20px;
}
#contact_box h3 {
  font-size: 15px;
}
.right .QR_box {
  position: absolute;
  bottom: 0px;
  right: 3px;
  height: 100%;
  background-color: rgb(44, 57, 87);
  border-radius: 5px;
  overflow: hidden;
  display: none;
}
.right .QR_box .QR_code {
  height: 100%;
}
#contact_box .wxgzh:hover ~ .code01,
#contact_box .wx:hover ~ .code02,
#contact_box .qq:hover ~ .code03 {
  display: block;
}
#copyright_part {
  position: absolute;
  bottom: 0px;
  right: 0px;
  left: 0px;
  height: 20px;
  font-size: 10px;
  color: rgb(200,200,200);
}
#copyright_part .copyright {
  position: absolute;
  width: 50%;
  left: 20px;
  white-space: nowrap;
  overflow: hidden;
}
#copyright_part .beianhao {
  position: absolute;
  width: 50%;
  right: 20px;
  white-space: nowrap;
  overflow: hidden;
}