@import url('https://fonts.googleapis.com/css?family=Nanum+Gothic:400,700,800&display=swap');

html,
body,
* {
  font-size: 16px;
}

html,
body,
div,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
li,
dl,
dt,
dd,
span,
form,
fieldset,
input,
select,
label,
textarea,
table,
caption,
thead,
tfoot,
tbody,
tr,
th,
td {
  margin: 0;
  padding: 0;
  font: 'Nanum Gothic', 'Helvetica', 'Apple SD Gothic Neo', '돋움', Dotum,
    sans-serif;
  color: #000;
  letter-spacing: -1px;
  -webkit-text-size-adjust: none;
}
b,
span,
strong,
input,
a,
button {
  font-size: inherit;
  font-family: inherit;
  color: inherit;
}
article,
aside,
dialog,
footer,
header,
section,
footer,
nav,
figure,
hgroup,
details,
summary,
figure,
figcaption {
  display: block;
}
cite {
  display: inline;
}
html,
body {
  height: 100%;
}
body {
  margin: 0px;
}
a:link {
  text-decoration: none;
}
a:visited {
  text-decoration: none;
}
img {
  border: 0;
  max-width: 100%;
}
label,
input,
textarea,
select {
  vertical-align: middle;
}
ol,
ul {
  list-style: none;
}
table {
  border-collapse: collapse;
  table-layout: fixed;
}
fieldset {
  border: none;
}
.skip,
legend {
  position: absolute;
  left: -1000%;
  width: 1px;
  height: 1px;
  font-size: 0;
  line-height: 0;
  overflow: hidden;
}
button {
  margin: 0;
  padding: 0;
  border: none;
  background: none;
  outline: none;
  cursor: pointer;
  display: inline-block;
}

#landing {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}
#landing > div {
  position: relative;
}

.m {
  display: none;
}

#intro {
  position: relative;
  background: #193574 url(../img/intro/bg.jpg) no-repeat center bottom;
  text-align: center;
  z-index: 1;
}
#intro h1 {
  padding: 64px 0 30px;
  text-align: center;
}
#intro h1:after {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  margin: 30px auto 0;
  background: #747e9e;
}
#intro .logo {
  position: absolute;
  top: 39px;
  right: 40px;
}
#intro div h2 {
  padding-bottom: 419px;
}
#intro div p {
  display: none;
}
#intro #vedio {
  position: absolute;
  left: 70px;
  bottom: -110px;
  width: 902px;
  height: 510px;
  box-sizing: border-box;
  padding: 47px 0 0 86px;
  background: url(../img/intro/video_bg.png) no-repeat;
  text-align: left;
}
#intro #vedio iframe {
  width: 673px;
  height: 393px;
  margin: 0;
}
.benefit {
  height: 440px;
  box-sizing: border-box;
  padding-top: 130px;
  background: url(../img/intro/bg2.jpg) no-repeat center;
  text-align: center;
}
#why h2 {
  padding: 140px 0 60px;
  text-align: center;
}
#why h2 + p {
  background: #fff url(../img/why/bg.png) no-repeat center bottom;
  text-align: center;
}
#why > div {
  position: relative;
  padding: 0 80px;
  text-align: center;
}
#why > div h3 {
  padding: 80px 0;
  text-align: left;
}
#why .ct1 {
  background: #e8e9ed;
}
#why .ct1 h4 {
  padding: 20px 0 60px;
}
#why .ct1 p {
  padding-bottom: 80px;
}
#why .ct1 .txt {
  text-align: right;
  font-size: 14px;
  color: #666;
  font-style: italic;
}
#why .ct2 h4 {
  padding: 60px 0;
}
#why .ct2 ul {
  width: 100%;
  display: table;
  table-layout: fixed;
  margin-bottom: 90px;
}
#why .ct2 ul li {
  display: table-cell;
  text-align: left;
}
#why .ct3 {
  background: #e8e9ed;
}
#why .ct3 p {
  padding-bottom: 93px;
}

#setting {
  padding: 40px 80px;
  background: #d1d4da;
  text-align: center;
}
#setting h3 {
  margin: 80px 0 40px -80px;
  text-align: left;
}
#setting p + p {
  padding: 30px 0 80px;
}

#spacial {
  padding: 90px 80px 130px;
  background: #e8e9ed;
}
#spacial h2 {
  padding-bottom: 50px;
  text-align: left;
}
#spacial h3 {
  padding: 40px 0;
  text-align: left;
}
#spacial p {
  text-align: center;
}
#spacial div {
  border-bottom: 2px dotted #a7a8ab;
}
#spacial div.ct6 {
  padding: 90px 0;
}

#join {
  padding: 0 66px 100px;
  background: #e8e9ed;
  text-align: center;
}
#join ul {
  width: calc(100% + 12px);
  margin: 85px 0 0 -12px;
  font-size: 0;
}
#join ul li {
  display: inline-block;
  margin: 0 0 12px 12px;
}

#foot {
  background: #091025;
  text-align: center;
}
#foot > dl {
  padding: 96px 20px;
  background: #0e1839;
}
#foot > dl dt:after {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  margin: 30px auto;
  background: #747e9e;
}
#foot > dl dd + dd {
  margin-top: 30px;
}
#foot address {
  padding: 60px 20px;
}

#ch-plugin {
  position: fixed;
  bottom: 106px;
  right: 24px;
  z-index: 50;
}
.btn_contact {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 50;
}
#ch-plugin img,
.btn_contact img {
  height: 62px;
}

.cs_201209 {
  width: 1000px;
  position: relative;
  /* height: 340px; */
  margin-top: 30px;
  box-sizing: border-box;
  overflow: hidden;
  /* margin: 30px; */
  /* padding: 34px 0 0 50px; */
  /* background: #c4f0f9; */
  border-radius: 15px;
}
.cs_201209 img + img {
  position: absolute;
  top: 50px;
  right: 100px;
}
.cs_201209 + #why {
  margin-top: 0;
}

#news {
  padding: 30px;
  background: #13151c;
  text-align: center;
}
#news fieldset {
  padding: 30px;
  border: 1px dashed #2b2d33;
}
#news dd {
  padding: 11px 0;
}
#news dd + dd {
  display: none;
}
#news p {
  font-size: 0;
}
#news p input {
  display: inline-block;
  width: 100%;
  max-width: 388px;
  height: 44px;
  line-height: 44px;
  box-sizing: border-box;
  padding: 0 15px;
  margin-top: 15px;
  border-radius: 5px;
  border: 0;
  font-size: 18px;
  vertical-align: top;
}
#news p button {
  margin: 15px 0 0 10px;
}

@media all and (max-width: 1000px) {
  #intro div h2 {
    padding-bottom: 45px;
  }
  #intro #vedio {
    position: relative;
    left: 0;
    bottom: 0;
    max-width: 685px;
    width: 100%;
    height: auto;
    margin: 0 auto 50px;
    padding: 50px 6px 15px;
    background: #000 url(../img/intro/logo.png) no-repeat center 10px;
    border-radius: 10px;
  }
  #intro #vedio iframe {
    width: 100%;
  }
  #intro div {
    padding-bottom: 280px;
  }
  #intro div p {
    display: block;
    position: absolute;
    bottom: -150px;
    left: 0;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
  }
  .benefit {
    height: auto;
    padding: 180px 0 40px;
    background-size: cover;
  }
  .benefit p {
    max-width: 80%;
    margin: 0 auto;
  }
  #why h2 {
    padding-top: 240px;
  }
  #join ul li {
    width: calc(20% - 12px);
  }
  .cs_201209 {
    height: auto;
    box-sizing: border-box;
    overflow: hidden;
    margin: 20px;
    padding: 0;
    text-align: center;
    background-size: cover;
    background-position: center;
  }
  .cs_201209 img {
    vertical-align: middle;
    display: inline-block;
    padding: 30px;
    box-sizing: border-box;
  }
  .cs_201209 img + img {
    position: relative;
    top: 0;
    right: 0;
  }
  .cs_201209 + #why {
    margin-top: -150px;
  }
}
@media all and (max-width: 760px) {
  .m {
    display: inline-block;
  }
  .web {
    display: none;
  }
  #intro {
    padding: 0 40px;
  }
  #intro .logo {
    top: 20px;
    right: 20px;
    max-width: 25%;
  }
  #intro h1 {
    padding: 50px 0 30px;
    max-width: 12%;
    margin: 0 auto;
  }
  #intro div h2 {
    padding-bottom: 50px;
  }
  #intro #vedio iframe {
    height: 300px;
  }
  #intro div {
    padding-bottom: 220px;
  }
  #intro div p {
    padding: 0 30px;
  }
  #why h2 {
    padding: 250px 0 40px;
  }
  #why h2 + p {
    padding: 0 50px;
  }
  #why > div,
  #setting {
    padding: 0 50px;
  }
  #setting h2 {
    padding: 0 40px;
  }
  #setting h2 {
    padding-top: 50px;
  }
  #setting h3 {
    margin: 60px 0 40px -50px;
  }
  #setting h3 {
    max-width: 60%;
  }
  #setting .ct1_a li:nth-child(2) {
    max-width: 60%;
  }
  #setting p + p {
    padding: 20px 0 50px;
    max-width: 60%;
    margin: 0 auto;
  }
  #spacial {
    padding: 60px 50px 100px;
  }
  #spacial h2 {
    max-width: 60%;
    padding-bottom: 20px;
  }
  #join {
    padding: 0 20px 80px;
  }
  #join ul {
    margin-top: 50px;
  }
  #join ul li {
    width: calc(25% - 12px);
  }
  #foot address {
    padding-bottom: 125px;
  }
  #news dt + dd {
    display: none;
  }
  #news dd + dd {
    display: block;
  }
}

@media all and (max-width: 560px) {
  #intro div h2 {
    padding-bottom: 40px;
  }
  #intro #vedio iframe {
    height: 250px;
  }
  #intro div {
    padding-bottom: 120px;
  }
  #why h2 {
    padding: 250px 0 40px;
  }
}
@media all and (max-width: 420px) {
  #intro h1:after {
    margin-top: 20px;
  }
  #intro h1 {
    padding-bottom: 20px;
  }
  #intro #vedio {
    margin: 0 -15px;
    padding: 23px 0 10px;
    width: calc(100% + 30px);
    background-size: auto 10px;
    background-position: center 7px;
    border-radius: 5px;
  }
  #intro #vedio iframe {
    height: 200px;
  }
  #intro div {
    padding-bottom: 100px;
  }
  #why h2 {
    padding-top: 200px;
  }

  #why h2 + p {
    padding: 0 20px;
  }
  #why > div,
  #setting {
    padding: 0 25px;
  }
  #why > div h3 {
    padding: 50px 0 40px;
  }
  #why .ct1 h4 {
    padding: 0 0 40px;
  }
  #why .ct1 p {
    padding-bottom: 60px;
  }
  #why .ct2 h4 {
    padding-top: 0;
  }
  #why .ct2 ul {
    margin-bottom: 60px;
  }
  #setting h3 {
    margin: 50px 0 30px -25px;
  }
  #spacial {
    padding: 30px 25px 50px;
  }
  #spacial div.ct6 {
    padding: 50px 0;
  }
  #join {
    padding: 0 25px 50px;
  }
  #join h2 {
    padding: 0 40px;
  }
  #join ul {
    width: calc(100% + 10px);
    margin: 20px 0 0 -10px;
  }
  #join ul li {
    width: calc(25% - 10px);
    margin: 0 0 10px 10px;
  }
  #foot > dl {
    padding: 50px;
  }
  #foot address {
    padding: 50px 0 150px;
  }
  #foot > dl dt img {
    max-width: 13%;
  }
  #foot > dl dd img {
    width: 70%;
  }
  #ch-plugin {
    bottom: 20px;
    right: 20px;
  }
  .btn_contact {
    bottom: 20px;
    right: 80px;
  }
  #ch-plugin img,
  .btn_contact img {
    height: 50px;
  }
}
@media all and (max-width: 380px) {
  #intro #vedio iframe {
    height: 180px;
  }
  #intro div {
    padding-bottom: 80px;
  }
  #why h2 {
    padding-top: 200px;
  }
}