html,
body {
  margin: 0;
  padding: 0;
}

.header {
  width: 100%;
  height: 72px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: rgba(125, 184, 252, .95);
  position: fixed;
  top: 0;
  z-index: 2;

  /* background-color: pink; */
}

.header-left {
  font-size: 22px;
  display: flex;
  justify-content: left;
  align-items: center;
  height: 72px;
}

.header-left div:nth-child(2) {
  /*width: 86px;*/
  height: 45px;
  font-size: 32px;
  font-weight: 500;
  color: #0d3114;
  line-height: 45px;
}

.header-left img {
  width: 44px;
  height: 44px;
  /* margin-right: 20px; */
  margin-left: -100px;
}

.header-left div:nth-child(2) {
  margin-top: 10px;
  margin-left: -30px;
}

.header-right {
  display: flex;
}

.header-links li {
  font-size: 18px;
  font-weight: 500;
  line-height: 72px;
  display: inline-block;
  margin-left: 100px;
  margin-top: 15px;
}

.header-links li a {
  color: #000;
}

.header-links li a:visited {
  color: #333;
}

.header-links li a:active {
  color: #fff;
}

.index_box a {
  padding: 0 0 5px;
  border-bottom: 3px solid #ffd25e;
}

/*协议*/
.agreement-list {
  display: flex;
  justify-content: center;
  align-items: center;
}

.agreement-list li {
}

.agreement-list li + li {
  margin-left: 20px;
}

.agreement-list li a {
  display: block;
  font-size: 14px;
  line-height: 20px;
  color: #333;
  text-decoration: underline;
}


/* 底部 */
.footer {
  padding: 10px 0;
  width: 100%;
  font-size: 14px;
  text-align: center;
}

.footer_p {
  color: #999999;
  line-height: 20px;
}

.footer_p p a {
  color: #999999;
}


/* 芒果聊-更高效的聊天工具 产品介绍 */

.header_div {
  width: 800px;
  height: 600px;
  /* background-color: pink; */
  text-align: center;
  /* padding-top: -800px; */
  margin: 155px auto;
  position: absolute;
  top: 30%;
  left: 29%;
}

.header_div p:nth-child(1) {
  font-size: 75px;
  font-weight: 500;
  color: #fff;
  line-height: 77px;
  /* padding-left: 580px; */
}

.header_div p:nth-child(2) {
  font-size: 58px;
  font-weight: 500;
  color: #fff;
  line-height: 56px;
  margin: 14px 0 80px;
  /* padding-left: 613px; */
}

.header_div .header_a {
  margin-top: 200px;
  height: 100px;
  width: 100%;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.header_div .header_a .img_left {
  width: 234px;
  height: 77px;
  position: relative;
  margin: auto;
  text-align: center;
}

.header_div .header_a .img_left span {
  position: absolute;
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  color: #333;
}

.header_div .header_a .img_right {
  margin-left: 200px;
  width: 234px;
  height: 77px;
  position: relative;
  text-align: center;
}

.header_div .header_a .img_right span {
  position: absolute;
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  color: #333;
}

.header_div .img_a {
  position: absolute;
  top: 95%;
  left: 36%;
  width: 200px;
  height: 200px;
}

/* 首页 */

.header_div a {
  display: block;
  width: 100%;
  height: 100%;
}

.header_div a img {
  display: block;
}
.intermediate {
  width: 1200px;
  margin: auto;
  padding: 120px 0;
  padding-top: 37px;
}

.intermediate_p {
  width: 688px;
  margin: auto;
}

.text_p {
  font-size: 24px;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #0d3114;
  line-height: 33px;
  text-align: center;
}


/* .text_p span {
    margin: 8px auto 0;
    display: block;
    width: 60px;
    height: 5px;
    background: #5A57F7;
} */

.intermediate_p p:nth-child(2) {
  text-indent: 2em;
  margin: 43px 0 50px;
  font-size: 16px;
  font-family: PingFangSC-Medium, PingFang SC;
  font-weight: 500;
  color: #000;
  line-height: 30px;
}

.intermediate_img {
  text-align: center;
}

.intermediate_img img {
  width: 380px;
  height: 724px;
  /* margin: 0 25px; */
}

.inbox {
  background-color: #f5f5f5;
}

.inbox_img {
  display: flex;
  justify-content: center;
}

.inbox_img img {
  width: 300px;
  height: 150px;
  text-align: center;
}


/* 产品介绍 */

.intermediate2_li {
  margin: auto;
  width: 1200px;
  padding: 45px;
  display: flex;
  justify-content: space-between;
  padding: 120px 0;
}

.intermediate2_p p:nth-child(1) {
  margin-top: 120px;
  font-size: 50px;
  font-weight: 500;
  color: #333333;
  margin-bottom: 20px;
}

.intermediate2_p p:nth-child(2) {
  font-size: 32px;
  font-weight: 500;
  color: #999999;
  line-height: 45px;
}

.intermediate2_img img {
  width: 380px;
  height: 724px;
}

.intermediate2 li:nth-child(2n) {
  background-color: #f5f5f5;
}


/* 合作支持 */

.intermediate3_li {
  margin: auto;
  width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 240px 45px;
}

.intermediate3_p p:nth-child(1) {
  font-size: 50px;
  font-weight: 500;
  color: #333333;
  margin-bottom: 30px;
}

.intermediate3_p p:nth-child(2) {
  font-size: 32px;
  font-weight: 500;
  color: #999999;
  line-height: 60px;
}

.intermediate3_img img {
  width: 300px;
  height: 150px;
}

.header_b {
  position: fixed;
  left: 26px;
  bottom: 237px;
  width: 234px;
  height: 257px;
  display: none;
}

.header_b ._right {
  padding-top: 37px;
}
.header_b a {
  display: block;
  position: relative;
}

.header_b span {
  position: absolute;
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  color: #333;
}

.intermediate3 li:nth-child(2n) {
  background-color: #f5f5f5;
}

.nav {
  width: 100%;
  height: 72px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: rgba(89, 67, 131, .95);
  position: fixed;
  top: 0;
}

.intermediate4_li {
  margin: 100px 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.intermediate4_p p:nth-child(1) {
  font-size: 20px;
  font-weight: bold;
  color: #0d3114;
  margin-bottom: 30px;
}

.intermediate4_p p:nth-child(2) {
  width: 600px;
  font-size: 16px;
  color: #333;
  line-height: 22px;
}

.intermediate4_img {
  width: 900px;
  height: 500px;
  margin-left: 20px;
}

.intermediate4_img img {
  width: 900px;
  height: 500px;
  display: block;
}


/* 联系我们 */

.text_lien p:nth-child(1) {
  font-size: 50px;
  font-weight: 500;
  color: #333333;
  line-height: 80px;
}

.text_lien p:nth-child(2) {
  font-size: 32px;
  font-weight: 500;
  color: #999999;
  line-height: 80px;
}

.addGroup {
  position: relative;
  display: block;
  width: 100px;
  height: 220px;
  display: flex;
  flex-direction: column;
  /* background-color: #000000; */
}

.addGroup:hover .addKuang {
  display: flex;
}

.addKuang {
  position: absolute;
  left: 0;
  bottom: 0px;
  width: 146px;
  height: 117px;
  background: #ffffff;
  border-radius: 8px;
  color: #000000;
  display: none;
  flex-direction: column;
  align-items: center;
  z-index: 999;
}

.header_down {
  width: 180px;
  height: 55px;
  margin-top: 40px;
  font-size: 48px;
  font-weight: 500;
  color: #ffffff;
  padding-left: 5px;
}


/* 代理合作 */

.cont {
  margin: 172px 0 100px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.cont_left {
  width: 800px;
  height: 600px;
  margin-right: 50px;
}

.cont_left img {
  width: 800px;
  height: 600px;
}

.cont_right {
  width: 500px;
}

.cont_right p:nth-child(1) {
  font-size: 26px;
  font-weight: bold;
  color: #333;
}

.cont_right p:nth-child(2) {
  margin-top: 20px;
  font-size: 14px;
  color: #333;
  line-height: 20px;
}

.nav_cont {
  width: 100%;
  height: 72px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  background-color: rgba(229, 244, 255, .95);
  position: fixed;
  top: 0;
}

.nav_conta li a {
  color: #fff;
}

.nav_conta li a:visited {
  color: #fff;
}

.nav_conta li a:active {
  color: #fff;
}

.black_overlay {
  display: none;
  position: absolute;
  top: 0%;
  left: 0%;
  z-index: 1001;
}

.white_content {

  display: none;
  position: absolute;
  top: 20%;
  left: 30%;
  background-color: white;
  z-index: 1002;
}

#light {
  position: fixed;
  top: 20%;
  left: 30%;
  width: 771px;
  height: 591px;
  background: url('./img/contact.png');
  background-size: 100% 100%;
}

#form_submit {
  text-align: center;
  margin-left: 10px;
  margin-top: 10px;
}

.cont_right a:visited {
  color: #000;
}

.button_beautiful {
  width: 34px;
  height: 34px;
  float: right;
  cursor: pointer;
  outline: none;
  color: white;
  position: absolute;

  top: 5%;
  right: 3%;
}