:root {
  --font-h2: 2.8rem;
  --font-p: 1.1rem;
  --font-ltitle: 50px;
  --font-title: 40px;
  --font-lg: 24px;
  --font-m-md: 22px;
  --font-md: 18px;
  --font-sm: 16px;
  --font-mc: 14px;

  --padding-ex-lg: 75px;
  --padding-lg: 50px;
  --padding-md: 30px;
  --padding-sm: 20px;
  --padding-mc: 10px;

  --title-cl: #262626;
  --txt-button: #e3e3e3;
  --txt-p: #5f6464;
  --menu-cl: #5e5e5e;
  --menu-hcl: #011e41;
  --bg-button: white;
  --bg-footer: #efeeed;
  --bg-icon: #afaead;
  --bg-submenu: #f5f6f8;
  --button-cl: #f8f8f8;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

ul,
li {
  list-style: none;
}

a {
  text-decoration: none;
}

html,
body {
  width: 100%;
  height: 100%;
  font-family: "Source_Han_Sans_SC";/*Adobe Fonts*/
}

header {
  width: 100%;
  height: auto;
}

header .container {
  position: relative;
  width: 100%;
  height: 75px;
  z-index: 5;
}

header .container .banner {
  position: relative;
  width: 85%;
  margin: auto;
  height: 75px;
  display: flex;
  justify-content: space-between;
  z-index: 5;
}

/*거상요소*/
header .banner .nav .bg {
  position: absolute;
  width: 140%;
  height: 0px;
  background-color: rgba(255, 255, 255, 0.8);
  left: -20%;
  top: 0;
  transition: 0.3s;
  z-index: -3;
}

header .banner .nav .bg.over {
  height: 350px;
}


/*header logo 부분*/
header .container .banner .logo {
  width: 10%;
  display: flex;
  gap: calc(var(--padding-mc)/2);
  cursor: pointer;
}
header .container .banner .logo .logotxt{
  height: 50px;
  margin-top: 20px;
}

header .container .banner .logo .logotxt h1 {
  font-size: var(--font-md);
  letter-spacing: 2px;
  color: var(--bg-button);
}
header .container .banner .logo .logotxt p{
  font-size: var(--font-sm);
  font-weight: 600;
  margin-top: -8px;
  margin-left: 10px;
  color: var(--bg-button);
}

header.container .banner .logo .img {
  width: 100%;
  height: 75px;
}

header .container .banner .logo .img img {
  width: calc(var(--padding-sm)*2);
  height: calc(var(--padding-sm)*2);
  margin-top: 14px;
}


header .banner .nav {
  width: 55%;
  margin: auto;
  height: 75px;
  padding: 24px 0;
  letter-spacing: -1px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header .banner .nav .nav-list{
  position: relative;
}

header .banner .nav .nav-list>a{
  /* width: fit-content; */
  color: var(--bg-button);
  font-size: var(--font-mc);
  /* word-break: break-word;
  overflow-wrap: break-word; */
}
header .banner .nav .nav-list>.sub{
  position: absolute;
  left: -50px;
  width: 150px;
  max-height: 0;
  margin-top: 20px;
  text-align: center;
  z-index: 5;
  background-color: #fff;
}
header .banner .nav .nav-list:nth-of-type(4)>.sub{
  left: -30px;
}
header .banner .nav .nav-list>.sub>a{
  display: block;
  margin: auto;
  color: var(--bg-button);
  font-size: var(--font-mc);
  margin-bottom: 10px;
  opacity: 0;
}


header .container .banner .location {
  width: 15%;
  height: 75px;
  text-align: center;
  cursor: pointer;
}

header .container .banner .location .label {
  width: 100%;
  line-height: 75px;
  font-size: var(--font-sm);
  color: var(--bg-button);
  /* margin-left: var(--padding-lg); */
  cursor: pointer;
}

header .banner .location .label i {
  width: 25px;
  font-size: var(--font-sm);
  color: var(--bg-button);
  cursor: pointer;
}

header .container .banner .location .optionList {
  width: 90%;
  background-color: transparent;
  text-align: center;
  padding-top: 10px;
  max-height: 0;
  /* Initially collapsed */
  overflow: hidden;
  /* Prevents content from spilling out */
  transition: max-height 0.3s ease;
  /* Smooth transition */
  margin-left: 10px;
  opacity: 0;
}

header .container .banner .location .optionList .optionItem {
  height: 30px;
  cursor: pointer;
}

header .container .banner .location .optionList .optionItem a {
  color: var(--menu-cl);
  font-size: var(--font-sm);
}

/*hover*/
header .container:hover {
  background-color: var(--bg-button);
  /* Change the background color to white */
}

/*Show the .sub menu only when hovering over its parent li */
header .banner .nav .nav-list:hover .sub {
  max-height: 300px;
  /* Show submenu on hover */
}


header .banner .nav .nav-list>a:hover {
  color: var(--menu-hcl) !important;
  /* Change color of links when hovering */
}

header .banner .nav .nav-list:hover .sub a {
  color: var(--menu-cl);
  opacity: 1;
}

header .banner .nav .nav-list>.sub a:hover {
  color: var(--menu-hcl);
}

header .container:hover .banner .logo h1,
header .container:hover .banner .logo p {
  color: #222;
}

header .container:hover .nav .nav-list>a,
header .container:hover .location .label,
header .container:hover .location .label i {
  color: var(--menu-cl);
}

/* When hovering over .location, expand the .optionList */
header .container .banner .location:hover .optionList {
  max-height: 150px;
  /* Expand to 150px on hover */
  opacity: 1;
}

header .container .banner .location:hover .label {
  color: var(--menu-hcl);
}

header .container .banner .location:hover .optionList {
  background-color: var(--bg-button);
}

header .container .banner .location .optionList .optionItem:hover a {
  color: var(--menu-hcl);
}

/*mobile_nav menu*/
header .mobile_tab {
  display: none;
  position: absolute;
  right: 0;
  top: 10px;
  z-index: 90;
  margin-right: var(--padding-lg);
  width: 28px;
}
header .mobile_tab i{
  width: 100%;
  height: 100%;
  font-size: 30px;
  color: black;
}
header .mobile_stop {
  display: none;
  position: absolute;
  right: 0;
  top: 10px;
  z-index: 120;
  margin-right: var(--padding-lg);
  width: 28px;
  height: 28px;

}

header .mobile_stop i {
  width: 100%;
  height: 100%;
  font-size: 30px;
  color: black;
}

header .mobile_stop.active {
  display: block;
}

header .mobile_nav {
  width: 100%;
  position: fixed;
  right: -100%;
  top: 0;
  z-index: 110;
  padding: 40px 24px;
  width: 100%;
  height: 100%;
  background: #fff;
  box-sizing: border-box;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.2);
  transition: right 0.4s ease-out;
  
}
header .mobile_nav .nav-list {
  width: 100%;
  border-bottom: 1px dotted #ccc;
  padding:20px;
}

header .mobile_nav .nav-list .list{
  width: 100%;
  display: flex;
  justify-content: space-between;
}

header .mobile_nav .nav-list .btn .next i,
header .mobile_nav .nav-list .btn .down i{
  font-size: 20px;
  padding: 20px;
  color: #2f2f2f;
  cursor: pointer;
}
header .mobile_nav .nav-list .btn .down{
  display: none;
}



header .mobile_nav.active {
  right: 0;
}

header .mobile_nav>.nav-list>a {
  width: 100%;
  padding: 10px;
  display: block;
  line-height: 50px;
  font-size: 14px;
  font-weight: 600;
  color: #2f2f2f;
  box-sizing: border-box;
}
header .mobile_nav>.nav-list>.list>a {
  width: 100%;
  padding: 10px;
  display: block;
  line-height: 50px;
  font-size: 14px;
  font-weight: 600;
  color: #2f2f2f;
  box-sizing: border-box;
}

header .mobile_nav>.nav-list:hover>a {
  color: var(--menu-hcl);
}

header .mobile_nav .sub {
  width: 100%;
  display: block;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s;
}

header .mobile_nav .sub>a {
  height: 35px;
  border-top: 1px dotted #eaeaea;
}

header .mobile_nav .sub>a:first-child {
  border-top: none;
}

header .mobile_nav .sub>a>p {
  display: block;
  padding: 0 10px;
  width: 100%;
  line-height: 35px;
  font-size: 13px;
  color: #2f2f2f;
  background: #f4f4f4;
  border-bottom: 1px dotted #eaeaea;
  transition: background 0.3s;
}

header .mobile_nav .sub>a:hover {
  background: #fff;
}

/*main 부분*/
main {
  position: relative;
  top: -75px;
}

#sec1 {
  width: 100%;
  height: auto;
}

#sec1 .img {
  width: 100%;
  height: 100%;
  position: relative;
}

#sec1 .img img {
  width: 100%;
  height: auto;
}

#sec1 .img h1 {
  font-size: 4rem;
  font-weight: bold;
  color: var(--bg-button);
  letter-spacing: 3px;
  position: absolute;
  left: 8%;
  bottom: 10%;
}

#main {
  width: 100%;
  height: auto;
  padding: 12.4rem 0;
  display: grid;
  grid-template-columns: 1fr 3fr;
  background-color: #f7f7f7;
}

#main .menu-list {
  float: left;
  width: 400px;
  padding-left: 100px;
  position: sticky;
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  row-gap: 2rem;
  align-items: flex-start;
}

#main .menu-list h2 {
  font-size: var(--font-h2);
  color: var(--menu-hcl);
  line-height: 1;
  font-weight: 700;
}

#main .menu-list .menu-item {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  row-gap: 1.1rem;
  align-items: flex-start;
}

#main .menu-list .menu-item .menu-name p {
  color: var(--menu-cl);
  font-size: var(--font-lg);
}

#main .menu-list .menu-item .menu-name.on p {
  border-bottom: 2px solid var(--menu-hcl);
}

#main .ex {
  width: 100%;
  height: auto;
}

#main .ex .box {
  display: flex;
  flex-direction: column;
  row-gap: 100px;
  align-items: center;
  width: 90%;
}

#main .ex .box .card {
  padding: 1.6rem;
  display: flex;
  justify-content: space-between;
  background-color: #fff;
  border-radius: 20px;
}

#main .ex .box .card .img {
  width: 48%;
  height: auto;
}

#main .ex .box .card .img img {
  width: 100%;
  height: auto;
}

#main .ex .box .card .txt {
  width: 50%;
  height: auto;
  padding: 0 20px;
  border-left: 1px solid #ccc;
}

#main .ex .box .card .txt h2 {
  font-size: 28px;
  color: var(--menu-hcl);
  margin-bottom: 20px;
}

#main .ex .box .card .txt p {
  font-size: 18px;
  color: var(--menu-cl);
}

/*fooeter 부분*/
footer {
  width: 100%;
  position: relative;
  top: -75px;
}

footer .foo1 {
  background-color: var(--bg-footer);
  height: 350px;
}

footer .foo1 .wrap {
  width: 90%;
  margin: auto;
  padding: var(--padding-lg) 0;
  display: flex;
  justify-content: space-between;
}

footer .foo1 .wrap .nav {
  width: 55%;
  margin: auto;
  height: 75px;
  padding: 24px 0;
  letter-spacing: -1px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
footer .foo1 .wrap .nav .nav-list{
  position: relative;
}

footer .foo1 .wrap .nav .nav-list>a{
  /* width: fit-content; */
  color: var(--menu-cl);
  font-size: var(--font-mc);
  /* word-break: break-word;
  overflow-wrap: break-word; */
}
footer .foo1 .wrap .nav .nav-list>.sub{
  position: absolute;
  left: -20px;
  width: 160px;
  padding-top: 20px;
  padding-left: 20px;
  text-align: left;
  z-index: 5;
}

footer .foo1 .wrap .nav .nav-list:nth-of-type(4)>.sub{
  left: -20px;
}
footer .foo1 .wrap .nav .nav-list>.sub>a{
  display: block;
  color: var(--menu-cl);
  font-size: var(--font-mc);
  margin-bottom: 10px;
}
/*hover*/
footer .foo1 .wrap .nav .nav-list>a:hover,
footer .foo1 .wrap .nav .nav-list>.sub>a:hover{
  color: var(--menu-hcl);
}

footer .foo1 .wrap .icon {
  width: 40%;
}

footer .foo1 .wrap .icon ul {
  margin-left: calc(var(--padding-ex-lg)*2);
  display: flex;
  justify-content: space-around;
}

footer .foo1 .wrap .icon li {
  width: var(--padding-lg);
  line-height: var(--padding-lg);
  text-align: center;
  border-radius: 50%;
  background-color: var(--bg-icon);
  cursor: pointer;
}

footer .foo1 .wrap .icon li i {
  color: var(--bg-button);
}

footer .foo1 .wrap .icon #icon {
  width: var(--padding-lg);
  line-height: var(--padding-lg);
  font-size: 9px;
  border-radius: 50%;
  background-color: var(--bg-icon);
  font-weight: bold;
}

footer .foo1 .wrap .icon #icon a {
  color: #dadada;
}


footer .foo1 .wrap .icon li:hover,
footer .foo1 .wrap .icon #icon:hover {
  background-color: var(--menu-hcl);
}


footer .foo2 {
  width: 85%;
  height: calc(var(--padding-md)*2);
  margin: auto;
  display: flex;
  justify-content: space-around;
  align-items: center;
  font-size: var(--font-mc);
  color: var(--menu-cl);
}

footer .foo2 address {
  display: flex;
  align-items: center;
}

footer .foo2 ul {
  display: flex;
  gap: var(--padding-mc);
}

footer .foo2 p,
footer .foo2 ul li {
  cursor: pointer;
}

footer .foo2 ul li:nth-child(2) {
  border-left: 1px solid var(--menu-cl);
  border-right: 1px solid var(--menu-cl);
  padding: 0 var(--padding-mc);
}

/*hover*/
footer .foo2 p:hover,
footer .foo2 ul li:hover {
  color: var(--menu-hcl);
}

footer .top_btn {
  display: none;
}

footer .top_btn i {
  text-align: center;
  align-items: center;
  font-size: 36px;
  color: var(--bg-icon);
  position: fixed;
  right: var(--padding-md);
  bottom: var(--padding-md);
}

footer .top_btn i:hover {
  color: var(--menu-hcl);
}

footer .return_btn {
  display: none;
}

footer .return_btn i {
  text-align: center;
  align-items: center;
  font-size: 28px;
  color: var(--bg-icon);
  position: fixed;
  right: var(--padding-md);
  top: var(--padding-ex-lg);
}

footer .return_btn i:hover {
  color: var(--menu-hcl);
}


/*1280px*/
@media screen and (max-width:1280px) {
  :root {
    --font-title: 30px;
    --font-lg: 20px;
    --font-m-md: 18px;
    --font-md: 14px;
    --font-sm: 12px;
    --font-mc: 10px;

    --padding-lg: 40px;
    --padding-md: 30px;
    --padding-sm: 15px;
    --padding-mc: 5px;
  }

 
  header {
    width: 100%;
    height: auto;
  }

  header .container .banner .logo .img img {
    margin-top: calc(var(--padding-lg)/2);
  }

  header .banner .nav .nav-list:nth-child(6) {
    display: none;
  }
  header .banner .nav .nav-list>.sub{
    left: -80px;
  }
  
  header .banner .nav .nav-list:nth-of-type(4)>.sub{
    left: -50px;
  }


  #body .ex .box .card .txt h2 {
    font-size: 18px;
    margin-bottom: 5px;
  }
  
  #body .ex .box .card .txt p {
    font-size: 14px;
  }

  /* footer .foo1 .nav {
    display: none;
  }

  footer .foo1 .icon {
    width: 60%;
    margin: auto;
  }

  footer .foo1 .wrap .icon ul {
    margin-left: 0;
  }

  footer .foo2 {
    display: block;
    text-align: center;
    margin-top: 10px;
  }

  footer .foo2 address {
    display: block;
    width: 400px;
    margin: auto;
    padding: 10px 0;
  }

  footer .foo2 ul {
    width: 250px;
    margin: auto;
    padding-bottom: 20px;
  } */
}



/*1024px*/
@media screen and (max-width:1024px) {
  :root {
    --font-h2: 2rem;
    --font-p: 14px;
  }

  header {
    width: 100%;
    height: auto;
  }

  header .banner .nav .nav-list:nth-child(5) {
    display: none;
  }
  #sec1 .img h1 {
    font-size: 2rem;
    letter-spacing: 3px;
    width: 100%;
    left: 0;
    bottom: 50%;
    text-align: center;
  }

  #main {
    display: block;
    padding: 50px 0;
  }

  #main .menu-list {
    display: none;
  }

  #main .ex .box {
    padding-left: 0;
    padding-right: 0;
    width: 90%;
    margin: auto;
    row-gap: 3rem;
  }
  #main .ex .box .card {
    display: block;
    border-radius: 10px;
  }
  #main .ex .box .card .img {
    width: 100%;
    height: auto;
  }
  
  #main .ex .box .card .img img {
    width: 100%;
    height: auto;
  }
  
  #main .ex .box .card .txt {
    width: 100%;
    height: auto;
    padding: 20px;
    border-left: none;
  }
  
  #main .ex .box .card .txt h2 {
    font-size: 20px;
    margin-bottom: 20px;
  }
  
  #main .ex .box .card .txt p {
    font-size: 16px;
  }
  footer .top_btn i,
  footer .return_btn i{
    right: 10px;
  }


}

/*850px*/
@media screen and (max-width:850px) {
  :root {
    --font-h2: 20px;
    --font-p: 12px;
  }

  header .container {
    background-color: var(--bg-button);
  }
  header .container .banner .logo .logotxt h1 {
    color: black;
  }
  header .banner .nav{
    display: none;
  }
  header .container .banner .location{
    display: none;
  }
  header .mobile_tab{
    display: block;
  }
  main {
    top: 0;
  }

  footer .foo1{
    height: 100px;
  }
  footer .foo1 .wrap .nav{
    display: none;
  }
  footer .foo1 .wrap .icon{
    width: 80%;
    margin: auto;
  }
  footer .foo1 .wrap .icon ul {
    margin-left:0;
  }
  footer .foo2{
    display: block;
    text-align: center;
  }
  footer .foo2 address{
    width: 50%;
    margin: auto;
    display: block;
    padding: 20px 0;
  }
  footer .foo2 ul{
    width: fit-content;
    margin: auto;
  }
}