@charset "UTF-8";
html,
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
button,
textarea,
p,
blockquote,
th,
td {
  font-family: "Hiragino Sans GB", "Hiragino Sans GB W3", "Microsoft YaHei", Arial, Helvetica, sans-serif;
  font-size: "12px";
  -ms-text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 62.5%;
}

.container-fluid {
  padding-left: 0px;
  padding-right: 0px;
}

.db {
  display: block;
  width: 100%;
}

/* 
    箭头
    @include arrow(direction,size,color);
**/
/*
    超出省略号
    @include ell();
 * */
/*
    inline-block
    @include inline_block();
 * */
/*
    font-size of REM
    @include font_size(fz);
 * */
.index_kv__body a {
  display: block;
  text-decoration: none;
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  color: #fff;
  justify-content: center;
  height: 100%;
}

.index_kv__body .kv {
  height: 590px;
  position: relative;
  z-index: 1;
}

.index_kv__body .kv.active .bg {
  transform: scale(1);
}

.index_kv__body .kv .bg {
  position: absolute;
  z-index: 1;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  transform: scale(1.2);
  transition: all 3.5s .3s;
}

.index_kv__body .kv .container, .index_kv__body .kv .db {
  height: 100%;
  position: relative;
  z-index: 2;
}

.index_kv__body .kv h3 {
  font-weight: 700;
  font-size: 70px;
  font-size: 7rem;
  margin-bottom: 30px;
}

.index_kv__body .kv p {
  font-size: 25px;
  font-size: 2rem;
  line-height: 1.2;
  width: 500px;
  
}

.index_kv__body .kv h6 {
  margin-top: 100px;
  font-size: 20px;
  font-size: 2rem;
  font-weight: 600;
}

.index_kv__body .swiper_change__body {
  background-color: #e6e6e6;
  text-align: center;
}

.index_kv__body .swiper_change__body a, .index_kv__body .swiper_change__body em {
  display: inline-block;
  vertical-align: middle;
}

.index_kv__body .swiper_change__body a {
  position: relative;
  padding: 0 30px;
  z-index: 1;
  height: 80px;
  line-height: 80px;
  font-size: 20px;
  font-size: 2rem;
  color: #4d4d4d;
}

.index_kv__body .swiper_change__body a:hover {
  text-decoration: none;
  color: #00a077;
}

.index_kv__body .swiper_change__body a.active {
  color: #00a077;
  text-decoration: none;
  font-weight: 600;
}

.index_kv__body .swiper_change__body a.active i {
  width: 100%;
  opacity: 1;
}

.index_kv__body .swiper_change__body a i {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background-color: #00a077;
  transition: width 4s;
  opacity: 0;
}

.index_kv__body .swiper_change__body em {
  color: #000;
  font-size: 20px;
  font-size: 2rem;
  font-weight: 700;
}

.index_kv__body.mobile_kv .kv {
  height: 390px;
}

.index_kv__body.mobile_kv .kv h3 {
  font-size: 30px;
  margin-bottom: 15px;
}

.index_kv__body.mobile_kv .kv p {
  font-size: 20px;
  width: 180px;
}

.index_kv__body.mobile_kv .kv h6 {
  margin-top: 50px;
}

.index_kv__body.mobile_kv .swiper-pagination-bullet-active {
  background-color: #fff;
}

.index_about__body {
  padding: 40px 0;
}

.index_about__body p {
  font-size: 17px;
  font-size: 1.7rem;
  line-height: 1.7;
  margin-bottom: 30px;
}

.index_cases__body .cases_out .block {
  margin-bottom: 14px;
}

.index_cases__body .cases_out .flex {
  justify-content: flex-start;
  align-items: stretch;
}

.index_cases__body .cases_out .flex.s_2 {
  width: 50%;
}

.index_cases__body .cases_out .flex.s_3 {
  width: 25%;
}

.index_cases__body .cases_out .box {
  width: calc(25% - 14px);
  margin-right: 14px;
  position: relative;
  z-index: 1;
  overflow: hidden;
  height: 318px;
}

.index_cases__body .cases_out .box:hover .bg {
  transform: scale(1.1);
}

.index_cases__body .cases_out .box:hover .mask {
  opacity: 1;
}

.index_cases__body .cases_out .box.s_1 {
  height: 650px;
}

.index_cases__body .cases_out .box.s_2 {
  width: calc(50% - 14px);
  margin-right: 14px;
}

.index_cases__body .cases_out .box.s_3 {
  width: 100%;
  margin-right: 0;
  margin-bottom: 14px;
}

.index_cases__body .cases_out .box.s_3.mr {
  margin-right: 14px;
  width: calc(100% - 14px);
  margin-top: 14px;
}

.index_cases__body .cases_out .box.s_4 {
  width: calc(50%);
  margin-right: 14px;
}

.index_cases__body .cases_out .box .bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  transition: all 1s;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1);
}

.index_cases__body .cases_out .box .color_bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 7;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
}

.index_cases__body .cases_out .box .color_bg p {
  position: relative;
  z-index: 10;
  color: #fff;
  font-weight: 700;
  font-size: 25px;
  font-size: 2.5rem;
  text-align: center;
}

.index_cases__body .cases_out .box .color_bg h6 {
  position: relative;
  z-index: 10;
  color: #fff;
  font-size: 15px;
  font-size: 1.5rem;
  line-height: 1.5;
  text-align: center;
  padding: 5px 10px 10px;
}

.index_cases__body .cases_out .box .color_bg .blank {
  position: relative;
  z-index: 10;
  width: 70%;
  height: 1px;
  background-color: #fff;
}

.index_cases__body .cases_out .box .color_bg.c_1 {
  background-color: #00a077;
}

.index_cases__body .cases_out .box .color_bg.c_1 a {
  text-decoration: none;
}

.index_cases__body .cases_out .box .color_bg.c_2 {
  background-color: #2761a2;
}

.index_cases__body .cases_out .box .color_bg.c_2 a {
  text-decoration: none;
}

.index_cases__body .cases_out .box .mask {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  transition: all 1s;
  opacity: 0;
}

.index_cases__body .cases_out .box .mask p {
  color: #fff;
  font-weight: 700;
  font-size: 25px;
  font-size: 2.5rem;
  text-align: left;
  line-height: 1.2;
  padding: 0 20px;
}