* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Helvetica, "pingFang sc", "Microsoft yahei", Arial, Helvetica,
    sans-serif, sans-serif;
  font-size: 14px;
}

ul,
li {
  list-style: none;
}

a {
  outline: none;

  background: none;

  text-decoration: none;
}
button {
  border-style: none;
  outline: none;
}
.box-dark {
  width: 100%;
  margin: 0 auto;
  background-color: #f2f2f2;
}

/* 顶部导航 */
.sp_header {
  height: 50px;
  overflow: hidden;
  background: rgb(0, 0, 0);
  position: fixed;
  z-index: 9999;
  width: 100%;
}
.sp_logo {
  padding: 10px;
  float: left;
  height: 50px;
}
.sp_logo img {
  margin: auto;
  max-height: 30px;
}
.sp_nav {
  width: 50px;
  float: right;
  position: relative;
  cursor: pointer;
  height: 30px;
  margin-top: 15px;
}

.sp_nav span {
  display: block;
  background: #ffffff;
  width: 30px;
  height: 2px;
  position: absolute;
  left: 10px;
  transition: all ease 0.35s;
}
.sp_nav span:nth-of-type(1) {
  top: 0px;
}
.sp_nav span:nth-of-type(2) {
  top: 10px;
}
.sp_nav span:nth-of-type(3) {
  top: 20px;
}
.sp_nav_se span:nth-of-type(1) {
  top: 10px;
  transform: rotate(45deg);
}
.sp_nav_se span:nth-of-type(2) {
  width: 0;
}
.sp_nav_se span:nth-of-type(3) {
  top: 10px;
  transform: rotate(-45deg);
}
.sjj_nav {
  position: fixed;
  z-index: 999;
  background: #eee;
  width: 100%;
  font-size: 14px;
  line-height: 40px;
  top: -100%;
  left: 0;
  overflow: auto;
  overflow-x: hidden;
  transition: top ease 0.35s;
}
.nav_show {
  top: 50px;
}
.sjj_nav > ul > li:first-child {
  overflow: hidden;
  border-top: 0;
}

.sjj_nav ul li i svg {
  transform: rotate(-90deg);
  transition: all ease 0.35s;
}
.sjj_nav ul li .sjj_nav_i_se svg {
  transform: rotate(0deg);
}
.sjj_nav ul li {
  border-top: 1px #ddd solid;
  margin-left: 20px;
  margin-right: 20px;
  position: relative;
  line-height: 40px;
  font-size: 14px;
}

.sjj_nav ul li ul {
  display: none;
}
.sjj_nav ul li a {
  color: #666;
  width: 80%;
}
.sjj_nav ul li:last-child a {
  color: rgb(233, 53, 53);
}

/* 联系我们 */
.contact-box {
  width: 100%;
  margin: 0 auto;
  background-color: #050505;
  color: #d3d3d3;
}
.contact-box .contact-items {
  justify-content: center;
  align-items: center;
}
.contact-box .contact-tit {
  color: #fff;
  padding: 20px 0;
  /* border: 1px solid rebeccapurple; */
}
.contact-box .contact-tit p {
  font-size: 24px;
  text-align: center;
}
.contact-box .map-box {
  background-color: #fff;
  height: 260px;
  padding: 20px;
  /* background: url(../pc/images/map.jpg) no-repeat; */
}
.contact-box .footer-box {
  padding-top: 40px;
  width: 94%;
  margin: 0 auto;
  justify-content: center;
  align-items: center;
  color: #fff;
  /* background-color: aqua; */
}
.flex-box {
  display: flex;
}
.flex-box1 {
  display: flex;
  justify-content: center;
}
.flex-box1 li {
  padding-right: 5%;
}
.footer-box .title {
  font-size: 18px;
  padding-bottom: 6px;
}
.contact-box .footer-box .position,
.pho,
.em {
  width: 24px;
  height: 24px;
  margin-top: -4px;
  margin-right: 6px;
}
.contact-box .footer-box .wb,
.gzh {
  width: 90px;
  height: 90px;
}
.contact-box .footer-box li {
  font-size: 14px;
  margin-bottom: 1.5em;
}
.contact-box .footer-box li .wg-tit {
  text-align: center;
}
.line-box {
  background-color: rgb(0, 0, 0);
  color: #fff;
}
.line-box .line {
  width: 78%;
  margin: 0 auto;
  color: #fff;
  padding-top: 20px;
  border-top: 1px solid #333333;
  text-align: center;
}
.line-box p {
  width: 99%;
  text-align: center;

  padding-bottom: 30px;
}
.line-box p .lianj {
  color: #18ba60;
}
.item-hide {
  display: none !important;
}
/* 返回顶部 */
.up-btn {
  position: fixed;
  bottom: 8px;
  right: 2%;
  z-index: 500;
}
.up-btn img {
  width: 55px;
}