/*通用类*/
* {
  margin: 0;
  padding: 0;
}
body {
  margin: 0 auto;
  font-size: 12px;
  font-family: "Microsoft Yahei";
  background: #f4f3f5;
  color: #363636;
}
h1,
h2,
h3 {
  font-weight: 500;
}
img {
  border: none;
}
a {
  cursor: pointer;
  color: #363636;
  text-decoration: none;
  outline: none;
}
a:hover {
  color: #f60;
}
ul {
  list-style-type: none;
}
em {
  font-style: normal;
}
.lt {
  float: left;
}
.rt {
  float: right;
}
input.sub,
label {
  border: none;
  cursor: pointer;
}
input,
textarea,
select {
  font-family: "Microsoft Yahei";
  outline: none;
}
table {
  border-collapse: collapse;
}
table td,
table th {
  padding: 0;
}
div {
  box-sizing: border-box;
}
.clear::before {
  visibility: hidden;
  display: block;
  font-size: 0;
  content: " ";
  clear: both;
  height: 0;
}
.clear::after {
  visibility: hidden;
  display: block;
  font-size: 0;
  content: " ";
  clear: both;
  height: 0;
}
.contain {
  width: 1200px;
  margin: 0 auto;
}
.pulic_header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}
.pulic_header .logo {
  display: block;
}
.pulic_header .logo img {
  display: block;
}
.pulic_header .navi_box {
  display: flex;
  align-items: center;
}
.pulic_header .navi_box .li {
  margin: 0 0 0 40px;
  font-size: 17px;
  color: #ffffff;
}
.index_baner_box {
  position: relative;
}
.index_baner_box .pulic_header {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
}
.index_baner_box .bg {
  display: block;
  width: 100%;
}
.index_baner_box .baner_content {
  height: 100%;
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
}
.index_baner_box .baner_content .title_head {
  margin-bottom: 84px;
}
.index_baner_box .baner_content .title_head h2 {
  font-size: 65px;
  font-weight: bold;
  color: #ffffff;
}
.index_baner_box .baner_content .title_head p {
  font-size: 19px;
  color: #ffffff;
  opacity: 0.67;
  margin-top: 20px;
}
.index_baner_box .baner_content .contact_btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 186px;
  height: 65px;
  border-radius: 100px;
  border: 2px solid #fff;
  font-size: 20px;
  color: #ffffff;
}
.index_case_1 {
  padding: 100px 0;
}
.index_case_1 .last_cont {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 100px;
}
.index_case_1 .last_cont .l_txt {
  width: 50%;
}
.index_case_1 .last_cont .l_txt h2 {
  font-size: 46px;
  font-weight: bold;
  color: #000000;
  margin-bottom: 30px;
}
.index_case_1 .last_cont .l_txt h3 {
  font-size: 28px;
  color: #454852;
}
.index_case_1 .last_cont .l_txt ul {
  padding-left: 12px;
}
.index_case_1 .last_cont .l_txt ul li {
  font-size: 17px;
  line-height: 36px;
  color: #677381;
  list-style-type: disc;
}
.index_case_1 .last_cont .r_img {
  width: 49%;
}
.index_case_1 .last_cont .r_img img {
  display: block;
  width: 100%;
  border-radius: 100px;
}
.index_case_1 .last_cont:nth-child(2) .l_txt {
  order: 2;
  padding-left: 60px;
}
.index_case_1 .last_cont:nth-child(2) .r_img {
  order: 1;
}
.index_case_1 .last_cont:last-child {
  margin-bottom: 0;
}
.index_case_2 {
  position: relative;
  overflow: hidden;
  padding: 90px 0 160px;
  background: #22252a;
}
.index_case_2 .title_head {
  text-align: center;
  margin-bottom: 70px;
  font-size: 46px;
  font-weight: bold;
  color: #ffffff;
}
.index_case_2 .last_cont {
  display: flex;
  justify-content: space-between;
  position: relative;
  z-index: 2;
  overflow: hidden;
  width: 80vw;
  margin: 0 auto;
}
.index_case_2 .last_cont .list {
  width: 100%;
  position: relative;
  padding: 30px 30px 60px;
  background: #000;
  margin: 0 5px;
}
.index_case_2 .last_cont .list .bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1;
}
.index_case_2 .last_cont .list .tis_i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100px;
  position: relative;
  z-index: 2;
}
.index_case_2 .last_cont .list .tis_i img {
  max-width: 100%;
  opacity: 0;
  transition: all 0.6s;
}
.index_case_2 .last_cont .list .tle {
  padding: 18px 0 40px;
  text-align: center;
  font-size: 28px;
  color: #ffffff;
  position: relative;
  z-index: 2;
}
.index_case_2 .last_cont .list .txt {
  font-size: 15px;
  line-height: 26px;
  color: #ffffff;
  text-align: center;
  position: relative;
  z-index: 2;
}
.index_case_2 .last_cont .list:hover {
  background: linear-gradient(-45deg, #1f5ab7, #3ca878);
}
.index_case_2 .last_cont .list:hover .tis_i img {
  opacity: 1;
}
.index_case_2 .last_cont .list:hover .bg {
  opacity: 0;
}
.index_case_2 .bulang_box {
  height: 500px;
  max-width: 100%;
  overflow: hidden;
  position: absolute;
  bottom: 0;
  z-index: 0;
}
.index_case_3 {
  padding: 80px 0;
  background: #fafbfc;
}
.index_case_3 .title_head {
  text-align: center;
  margin-bottom: 40px;
  font-size: 46px;
  font-weight: bold;
  color: #000000;
}
.index_case_3 .last_cont {
  display: flex;
  flex-wrap: wrap;
}
.index_case_3 .last_cont .li {
  display: flex;
  align-items: center;
  justify-content: center;
  width: calc(97% / 4);
  height: 114px;
  background: #fff;
  margin-right: 1%;
  margin-bottom: 15px;
  transition: all 0.6s;
  border-radius: 10px;
}
.index_case_3 .last_cont .li:nth-child(4n) {
  margin-right: 0;
}
.index_case_3 .last_cont .li img {
  max-width: 100%;
}
.index_case_3 .last_cont .li:hover {
  box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.25);
}
.index_case_4 {
  position: relative;
  overflow: hidden;
  background: url(../images/case4_bg.png) no-repeat center;
  background-size: cover;
}
.index_case_4 .bg {
  display: block;
  width: 100%;
}
.index_case_4 .contain {
  display: flex;
  align-items: center;
  justify-content: center;
}
.index_case_4 .cont {
  width: 50%;
}
.index_case_4 .title_head {
  font-size: 46px;
  font-weight: bold;
  color: #000000;
  position: relative;
  margin-bottom: 28px;
}
.index_case_4 .title_head span {
  font-size: 76px;
  font-weight: bold;
  color: #0648a7;
  position: absolute;
  top: -50px;
  left: 0;
  text-transform: uppercase;
  opacity: 0.07;
}
.index_case_4 .txt_box p {
  font-size: 20px;
  line-height: 35px;
  margin-bottom: 25px;
}
.pulic_footer_cont {
  background: #1c1e23;
}
.pulic_footer_cont .tis_cont {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 84px 0 72px;
}
.pulic_footer_cont .tis_cont .logo {
  display: block;
}
.pulic_footer_cont .tis_cont .contact_box {
  margin: 0 10px;
  max-width: 50%;
}
.pulic_footer_cont .tis_cont .contact_box h2 {
  font-size: 37px;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 14px;
}
.pulic_footer_cont .tis_cont .contact_box h3 {
  font-size: 32px;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 12px;
}
.pulic_footer_cont .tis_cont .contact_box h3 span {
  display: inline-block;
  width: 140px;
}
.pulic_footer_cont .tis_cont .contact_box p {
  font-size: 18px;
  color: #ffffff;
  margin-bottom: 10px;
}
.pulic_footer_cont .tis_cont .code_box {
  margin: 0 10px;
}
.pulic_footer_cont .tis_cont .code_box .code {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 124px;
  height: 124px;
  background: #fff;
  padding: 5px;
  margin: 0 auto;
}
.pulic_footer_cont .tis_cont .code_box .code img {
  width: 100%;
}
.pulic_footer_cont .tis_cont .code_box p {
  font-size: 17px;
  color: #9fabbc;
  padding: 10px 0;
  text-align: center;
}
.pulic_footer_cont .copy_foot {
  padding: 20px 0;
  font-size: 15px;
  color: #474b54;
}
/******************/
.floor_en_kakao {
  position: fixed;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  z-index: 20;
}
.floor_en_kakao .li {
  margin-bottom: 10px;
}
.floor_en_kakao img {
  display: block;
  width: 70px;
}
.floor_wechat {
  position: fixed;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  cursor: pointer;
  z-index: 20;
}
.floor_wechat img {
  display: block;
}
.pulic_dc_bg {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 14;
  background: rgba(0, 0, 0, 0.6);
}
.pulic_dc_box {
  display: none;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 412px;
  border-radius: 10px;
  background: #fff;
  z-index: 15;
  padding-bottom: 30px;
}
.pulic_dc_box .shut_btn {
  position: absolute;
  right: 20px;
  top: 20px;
  display: block;
  width: 25px;
  cursor: pointer;
}
.pulic_dc_box .shut_btn img {
  display: block;
  width: 100%;
}
.pulic_dc_box .title {
  text-align: center;
  padding: 70px 0 30px;
}
.pulic_dc_box .title h2 {
  font-size: 27px;
  color: #292727;
  margin-bottom: 5px;
}
.pulic_dc_box .title p {
  font-size: 17px;
  color: #2f2f2f;
}
.pulic_dc_box .code {
  width: 290px;
  display: block;
  margin: 20px auto;
}
.pulic_dc_box .code img {
  display: block;
  width: 100%;
}
.phone_menu {
  display: none;
}
.phone_dc_menu {
  display: none;
}
/***********************/
@media (max-width: 720px) {
  .contain {
    width: 100%;
    padding: 0 1vw;
  }
  .phone_dc_menu {
    display: block;
    position: fixed;
    top: 0;
    left: -50%;
    width: 50%;
    height: 100vh;
    background: #000;
    padding: 20px;
    transition: all 0.6s;
    z-index: 14;
  }
  .phone_dc_menu .li {
    display: block;
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 1rem;
  }
  .phone_dc_menu.active {
    left: 0;
  }
  .index_baner_box {
    overflow: hidden;
  }
  .index_baner_box .bg {
    height: 360px;
    width: 720px;
  }
  .index_baner_box .pulic_header {
    padding: 1rem;
  }
  .index_baner_box .pulic_header .logo {
    width: 10rem;
  }
  .index_baner_box .pulic_header .logo img {
    width: 100%;
  }
  .index_baner_box .pulic_header .navi_box {
    display: none;
  }
  .index_baner_box .pulic_header .phone_menu {
    display: block;
    width: 4rem;
    height: 3rem;
    background: url(../images/menu.png) no-repeat center;
    background-size: cover;
  }
  .index_baner_box .baner_content .title_head {
    margin-bottom: 2rem;
  }
  .index_baner_box .baner_content .title_head h2 {
    font-size: 2.8rem;
  }
  .index_baner_box .baner_content .title_head p {
    font-size: 1.4rem;
    margin-top: 1rem;
  }
  .index_baner_box .baner_content .contact_btn {
    width: 12rem;
    height: 3rem;
    font-size: 1.2rem;
  }
  .floor_wechat img {
    width: 10rem;
  }
  .index_case_1 {
    padding: 2rem 0;
  }
  .index_case_1 .last_cont {
    flex-wrap: wrap;
    padding: 0 1vw;
    margin-bottom: 3rem;
  }
  .index_case_1 .last_cont .l_txt {
    width: 100%;
    margin-bottom: 1rem;
  }
  .index_case_1 .last_cont .l_txt h2 {
    font-size: 2.6rem;
    margin-bottom: 1rem;
  }
  .index_case_1 .last_cont .l_txt h3 {
    font-size: 2rem;
  }
  .index_case_1 .last_cont .l_txt ul li {
    font-size: 1.4rem;
    line-height: 2.8rem;
  }
  .index_case_1 .last_cont .r_img {
    width: 100%;
  }
  .index_case_1 .last_cont:nth-child(2) .l_txt {
    padding-left: 0;
    order: 1;
  }
  .index_case_1 .last_cont:nth-child(2) .r_img {
    order: 2;
  }
  .index_case_2 {
    padding: 2rem 0 3rem;
  }
  .index_case_2 .title_head {
    margin-bottom: 2rem;
    font-size: 2.4rem;
  }
  .index_case_2 .last_cont {
    flex-wrap: wrap;
  }
  .index_case_2 .last_cont .list {
    width: 49%;
    padding: 1rem 1rem 2rem;
    margin-right: 2%;
    margin-left: 0;
  }
  .index_case_2 .last_cont .list:nth-child(2n) {
    margin-left: 0;
    margin-right: 0;
  }
  .index_case_2 .last_cont .list .tis_i {
    height: 10rem;
  }
  .index_case_2 .last_cont .list .tle {
    padding: 1rem 0 2rem;
    font-size: 1.4rem;
  }
  .index_case_2 .last_cont .list .txt {
    font-size: 1.2rem;
    line-height: 2.4rem;
  }
  .index_case_2 .bulang_box {
    opacity: 0.5;
  }
  .index_case_3 {
    padding: 4rem 0;
  }
  .index_case_3 .title_head {
    margin-bottom: 2rem;
    font-size: 2.4rem;
  }
  .index_case_3 .last_cont .li {
    width: 49%;
    height: 8rem;
    margin-bottom: 1rem;
    margin-right: 2% !important;
  }
  .index_case_3 .last_cont .li:nth-child(2n) {
    margin-right: 0 !important;
  }
  .index_case_4 .bg {
    height: 48rem;
  }
  .index_case_4 .cont {
    width: 70%;
  }
  .index_case_4 .title_head {
    margin-bottom: 1rem;
    font-size: 2.4rem;
  }
  .index_case_4 .title_head span {
    font-size: 2.4rem;
  }
  .index_case_4 .txt_box p {
    font-size: 1.2rem;
    line-height: 2.4rem;
    margin-bottom: 0.2rem;
  }
  .pulic_footer_cont .tis_cont {
    padding: 2rem 0;
    flex-wrap: wrap;
  }
  .pulic_footer_cont .tis_cont .logo {
    margin-bottom: 1rem;
  }
  .pulic_footer_cont .tis_cont .contact_box {
    width: 100%;
    max-width: 100%;
    margin: 0;
  }
  .pulic_footer_cont .tis_cont .contact_box h2 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
  }
  .pulic_footer_cont .tis_cont .contact_box h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
  }
  .pulic_footer_cont .tis_cont .contact_box p {
    font-size: 1.4rem;
    margin-bottom: 5px;
  }
  .pulic_footer_cont .tis_cont .code_box {
    width: 50%;
    margin: 0;
  }
  .pulic_footer_cont .tis_cont .code_box .code {
    width: 10rem;
    height: 10rem;
    margin: 0 auto;
  }
  .pulic_footer_cont .tis_cont .code_box p {
    font-size: 12px;
  }
  .pulic_footer_cont .copy_foot {
    text-align: center;
  }
  .floor_en_kakao img {
    width: 4rem;
  }
  .pulic_dc_box {
    width: 80vw;
  }
  .pulic_dc_box .code {
    width: 16rem;
  }
}