* {
  font-family: "Spoqa Han Sans Neo", "sans-serif";
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  font-size: 16px;
  position: relative;
}
body {
  overflow-x: hidden;
}
a {
  color: black;
  text-decoration: none;
}
li {
  list-style: none;
}
.m_only {
  display: none;
}
.d-flexcc {
  display: flex;
  align-items: center;
  justify-content: center;
}
.a_i_c {
  align-items: center;
}
.w800 {
  width: 800px;
}
.p80 {
  padding: 80px;
}
.p50 {
  padding: 50px;
}
.p30 {
  padding: 30px;
}
.p20 {
  padding: 20px;
}
.p10 {
  padding: 10px;
}

.mt100 {
  margin-top: 100px;
}
.mt50 {
  margin-top: 50px;
}
.mt30 {
  margin-top: 30px;
}
.m100 {
  margin: 100px;
}
.m60 {
  margin: 60px;
}
.mb50 {
  margin-bottom: 50px;
}
.mb30 {
  margin-bottom: 30px;
}
.mb20 {
  margin-bottom: 20px;
}
.mb10 {
  margin-bottom: 10px;
}
.basic_w {
  font-size: 16px;
  color: white;
  font-weight: 100;
}
.basic_b {
  font-size: 16px;
  color: black;
  font-weight: 100;
  line-height: 30px;
}

.highlighter {
  background-color: #72b2ba;
}
.highlighter1 {
  background-color: #d0e5e8;
}
.color_white {
  color: white;
}
.color_72B2BA {
  color: #72b2ba;
}
.color_D0E5E8 {
  color: #d0e5e8;
}
.color_0C5666 {
  color: #0c5666;
}
.color_377282 {
  color: #377282;
}
.color_147E8C {
  color: #147e8c;
}
h2 {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
}
h4 {
  font-size: 24px;
  font-weight: 700;
  text-align: left;
}

.wrap {
  width: auto;
  display: flex;
  justify-content: center;
  align-items: center;
}
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #d0e5e8;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: space-around;
  height: 60px;
  /* width: 100%; */
}
.header h1 img {
  width: 120px;
  padding-top: 10px;
}

#m_Btn,
.m_menu-bg,
#m_menu {
  display: none;
}
nav {
  width: 400px;
  margin: 60px;
}

nav a {
  padding: 10px 10px;
  color: #377282;
  font-size: 16px;
}

nav a:hover {
  color: #094253;
}
#sns {
  display: flex;
  align-items: center;
  list-style: none;
}

section {
  /* min-height: 100vh; */
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7em;
  font-weight: bolder;
  flex-direction: column;
}

.main {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}
.red {
  width: 160px;
}
.sun {
  width: 500px;
}
.simple-linear {
  background: linear-gradient(#0d252b, #3a3a3a);
  background-size: auto;
}
#keytype li {
  list-style: inside;
}
#keytype li > img {
  margin-bottom: -8px;
  margin-right: 10px;
}
.keytype {
  display: flex;
  flex-direction: row;
  justify-content: center;
  text-align: center;
}
.keytype1_img {
  width: 450px;
  margin-right: 10px;
}
.keytype2_img {
  width: 410px;
}
.tableimg {
  display: flex;
  justify-content: space-between;
}
.tabletext {
  text-align: center;
  margin-top: 19px;
}
.tablearrow {
  position: absolute;
  bottom: 6px;
  left: 40%;
}
#how {
  background: #e7f2f3;
}
.howw {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
}
.usetitle {
  display: flex;
  justify-content: flex-start;
  flex-direction: column;
}

.background-imgV {
  background-image: url(./img/background_V.png);
  background-repeat: no-repeat;
  background-position-x: right;
  background-position: 100% 220%;
  background-size: 400px;
}
.thanksto {
  display: flex;
  justify-content: flex-start;
  flex-direction: column;
  margin: 0 auto;
}
.simple-linear1 {
  background: linear-gradient(#0d252b, #0c5666);
  background-size: auto;
}

.downImg {
  position: absolute;
  bottom: 0;
  left: 5%;
  height: 35vh;
}
.downImg2 {
  position: absolute;
  top: 0;
  right: 15%;
  height: 25vh;
}

#download {
  position: relative;
  height: 40vh;
  width: 100%;
}
.downloadCon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin-top: 50px;
}

.downloadCon div {
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.downloadcopy {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: white;

  width: 100%;
}
.downloadcopy span {
  font-size: 30px;
}
.download_link a:first-child {
  display: flex;
  padding-right: 10%;
  justify-content: flex-end;
}
.download_link img {
  display: flex;
  width: 70%;
  height: fit-content;
}
.download img {
  width: 35%;
}

.zup1000 {
  z-index: 1000;
}
swiper-container {
  width: 800px;
  height: 100%;
}

swiper-slide {
  text-align: center;
  font-size: 32px;
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  /* position-y: 20px; */
}
.copyright {
  max-width: 100%;
  color: #377282;
  margin-bottom: 10px;
}
.collapsible {
  background-color: transparent;
  border-bottom: 1px solid #fff !important;
  color: white;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  /* outline: none; */
  font-size: 15px;
  display: flex;
  justify-content: space-between;
  content: "\002B";
}
.active,
.collapsible:hover {
  /* background-color: #555; */
  color: white;
}
.content {
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  /* background-color: #f1f1f1; */
}
button.active {
  border-bottom: none !important;
}
button.active + a.content {
  border-bottom: 1px solid #fff !important;
}
.content p {
  padding-bottom: 30px;
}
.gifcontent {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.content .gif {
  width: 32%;
}
.content img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
ß .collapsible:after {
  content: "\002B";
  color: white;
  font-weight: bold;
  float: right;
  margin-left: 5px;
}
.active:after {
  content: "\2212";
  color: white;
}

footer {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  flex-direction: column;
  color: #585858;
  font-weight: 100;
  padding: 20px;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
  padding: 50px;
}
footer hr {
  color: #147e8c;
  width: 100%;
}

.footer-content {
  display: flex;
  justify-content: space-around;
  align-items: top;
  flex-direction: row;
  width: 80%;
}

.company-info,
/* .contact-info, */
.registration-info {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  flex-direction: column;
  width: 50%;
}
.registration-info a {
  color: #585858;
}

.copyright_f {
  width: 80%;
}

@media screen and (max-width: 834px) {
  .w800 {
    width: 80%;
  }
  .keytype {
    flex-direction: column;
  }
  .tableimg img {
    width: 90%;
    margin: 20px;
  }
  .tableimg {
    width: 90%;
  }
  .tablearrow {
    display: none;
  }

  .how {
    width: 90%;
  }
  swiper-container {
    width: 80%;
  }
  .patentimg {
    display: flex;
    flex-direction: column;
  }
  .downImg,
  .downImg2 {
    display: none;
  }
}

@media screen and (max-width: 500px) {
  .header {
    justify-content: space-between;
    padding: 0 40px;
  }
  .header h1 img {
    width: 60px;
    padding-top: 10px;
  }

  #m_Btn,
  .m_menu-bg,
  #m_menu {
    display: flex;
  }
  .m_top button {
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: #d0e5e8;
    background-image: url(./img/m_xIcon.svg);
    background-repeat: no-repeat;
    background-position: center;
  }
  .header > nav,
  .header > #sns {
    display: none;
  }
  .m_menu-bg {
    display: none;
    z-index: 10000;
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(29, 30, 32, 0.2);
    backdrop-filter: blur(7.5px);
    transition: all 0.7s;
  }
  .m_menu-bg.open {
    display: block;
  }
  #m_menu {
    z-index: 10000;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: -100vw;
    width: 250px;
    height: 100%;
    background-color: white;
    padding-left: 40px;
    transition: all 0.7s;
    gap: 55px;
  }
  nav {
    margin: 0;
  }
  #m_menu.open {
    left: 0;
  }

  .m_menu-bg nav {
    margin: 0;
    width: 100%;
  }
  .m_top {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 40px;
  }
  .m_top img {
    width: 48px;
  }

  #m_Btn {
    border: none;
    background: none;
    content: "";
    background-image: url(./img/m_menuIcon.svg);
    width: 22px;
    height: 22px;
    background-repeat: no-repeat;
    background-position: center;
  }
  .main_menu > li::before {
    content: url(./img/m_vIcon.svg);
  }
  .main_menu > li {
    padding: 10px 0;
  }
  .main_menu > li a {
    padding-left: 14px;
    font-size: 14px;
  }
  .m_menu {
    margin-top: 50px;
  }
  .sub_menu {
    margin-left: 50px;
  }
  .sub_menu > li {
    padding: 9px 0;
    /* display: flex;
    align-items: center; */
  }
  .sub_menu > li::before {
    content: url(./img/m_oIcon.svg);
  }
  .sub_menu > li a {
    font-size: 11px;
    padding-left: 10px;
  }
  .youtube {
    padding: 20px;
  }
  swiper-slide {
    font-size: 19px !important;
  }
  swiper-slide img {
    width: 30px !important;
  }
  .content {
    padding: 0;
  }
  .content .subtitle {
    display: flex;
    justify-content: center;
    padding-bottom: 37px;
  }
  .content > div {
    font-size: 16px;
    line-height: 30px;
    font-weight: 300;
  }
  .keytype img {
    width: 98%;
  }
  #keytype ul {
    font-size: 16px;
    font-weight: 400;
    line-height: 30px;
  }
  .patentimg {
    display: flex;
    flex-direction: column;
  }
  .main img:first-child {
    width: 20%;
  }
  .main img {
    width: 80%;
  }
  section {
    min-height: 70vh;
  }
  .m60 {
    margin: 30px;
  }
  .download img {
    width: 80%;
  }
  .footer-content {
    flex-direction: column;
  }

  .company-info,
  .contact-info,
  .registration-info {
    width: 100%;
    margin-bottom: 20px;
  }
  .tableimg {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 36px;
    width: 100%;
  }
  .m_only {
    display: flex;
  }
  .tablearrow {
    display: none;
  }
  .tableimg img {
    margin: 0;
    width: 265px;
  }
  /* #home img:last-child {
    width: 140px;
  } */

  /* .main img:nth-child(1) {
    width: 48px;
    margin-top: 16px;
  } */
  .copyright img {
    display: none;
  }
  swiper-container {
    width: 100%;
  }
  .title_txt {
    font-size: 24px;
    font-weight: 700;
    line-height: 30px;
  }
  #use h2 {
    margin-bottom: 44px;
  }
  .p30 {
    padding: 0 30px;
  }
  .simple-linear {
    padding: 40px 0;
  }
  .how {
    margin: 100px 0;
  }
  .how_subTxt > div {
    display: flex;
    flex-direction: column;
    gap: 25px;
  }
  .how_subTxt > p {
    padding-bottom: 62px;
    text-align: left;
  }
  .how_subTxt span {
    padding-left: 20px;
  }
  .content .gif {
    width: 70%;
  }
  .tablearrow_m {
    height: 54px;
  }
  .patent_Txt {
    display: flex;
    flex-direction: column;
    gap: 42px;
    margin: 0 9px;
  }
  .patentimg img {
    width: 300px;
    /* margin: 0 auto; */
  }
  .background-imgV {
    background: none;
  }
  #download {
    background: linear-gradient(180deg, #0b5065 0%, rgba(9, 66, 83, 0.74) 100%);
  }
  .downloadCon {
    width: 120px;
  }
  footer {
    background: white;
    color: #000;
    padding: 0;
  }
  .download_link {
    display: flex;
    flex-direction: column;
    gap: 25px;
  }
  .download_link img {
    width: 140px;
    margin: 0 auto;
  }
  .registration-info {
    display: none;
  }
  .registration-info_m {
    flex-direction: column;
  }
  .company-info h3 {
    font-size: 13px;
    font-weight: 400;
    line-height: 20px;
  }
  .copyright {
    /* margin: 15px 0 50px 0; */
  }
  .mb10 {
    margin-bottom: 10px;
  }
  hr {
    width: 100%;
    border: 1px solid #147e8c;
  }
  .company-info {
    margin: 0;
  }
  .info_link {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
  }
  .info_link a {
    color: #000;
    font-weight: 400;
    font-size: 10px;
    line-height: 20px;
  }
  .footer-content {
    justify-content: flex-start;
    align-items: initial;
    padding: 50px 0 23px 0;
  }
  .footer-content p {
    font-size: 10px;
    line-height: 20px;
    color: #585858;
  }
  .downloadCon span {
    font-size: 25px;
  }
  .downloadCon {
    width: 100%;
  }
  .download_link img {
    width: 200px;
  }
  .download_link a:first-child {
    display: flex;
    padding-right: 0%;
  }
  .downImg,
  .downImg2 {
    display: none;
  }
}