@font-face {
  font-family: "Gmarket Sans";
  font-style: normal;
  font-weight: 300;
  src: url("../fonts/GmarketSansLight.woff") format("woff");
  font-display: swap;
}

@font-face {
  font-family: "Gmarket Sans";
  font-style: normal;
  font-weight: 400;
  src: url("../fonts/GmarketSansMedium.woff") format("woff");
  font-display: swap;
}

@font-face {
  font-family: "Gmarket Sans";
  font-style: normal;
  font-weight: 500;
  src: url("../fonts/GmarketSansMedium.woff") format("woff");
  font-display: swap;
}

@font-face {
  font-family: "Gmarket Sans";
  font-style: normal;
  font-weight: 700;
  src: url("../fonts/GmarketSansBold.woff") format("woff");
  font-display: swap;
}

@font-face {
  font-family: "Gmarket Sans";
  font-style: normal;
  font-weight: 900;
  src: url("../fonts/GmarketSansBold.woff") format("woff");
  font-display: swap;
}

:root {
  --navy: #173f69;
  --deep: #0d2f55;
  --blue: #2876d1;
  --light-blue: #d7efff;
  --ink: #1f2933;
  --muted: #68737d;
  --line: #dbe3ec;
  --soft: #f3f7fb;
  --white: #fff;
  --max: 1430px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Gmarket Sans", "Pretendard", "Noto Sans KR", "Malgun Gothic", Arial, sans-serif;
  background: var(--white);
}

body.is-menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  vertical-align: middle;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.inner {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

:focus-visible {
  outline: 3px solid #ffbf47;
  outline-offset: 4px;
}

.topbar {
  background: var(--navy);
  color: var(--white);
  font-size: 16px;
}

.topbar__inner {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  min-height: 58px;
  align-items: center;
  font-size: 12px;
}

.site-header {
  position: relative;
  z-index: 10;
  background: var(--white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.site-header::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 270px;
  background: var(--white);
  border-top: 1px solid #eef2f6;
  box-shadow: 0 10px 18px rgba(7, 24, 43, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}

.site-header:hover::before,
.site-header:focus-within::before {
  opacity: 1;
  visibility: visible;
}

.header__inner {
  display: grid;
  grid-template-columns: 260px 1fr 300px;
  align-items: center;
  gap: 48px;
  min-height: 100px;
  position: relative;
  z-index: 1;
}

.logo {
  margin: 0;
}

.logo img {
  width: 212px;
  height: auto;
}

.gnb__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 34px;
  padding: 0;
  margin: 0;
  list-style: none;
  font-size: 20px;
  font-weight: 500;
}

.gnb__item {
  position: relative;
  text-align: center;
}

.gnb__head {
  display: none;
}

.gnb__item + .gnb__item::before {
  content: "";
  position: absolute;
  left: -17px;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #c9d0d8;
  transform: translate(-50%, -50%);
}

.gnb__link {
  display: inline-flex;
  align-items: center;
  min-height: 100px;
}

.gnb__depth {
  position: absolute;
  left: 50%;
  top: calc(100% + 32px);
  display: grid;
  gap: 30px;
  min-width: 160px;
  padding: 0;
  margin: 0;
  list-style: none;
  color: #26313c;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.2;
  text-align: center;
  transform: translateX(-50%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0.18s ease;
}

.site-header:hover .gnb__depth,
.site-header:focus-within .gnb__depth {
  opacity: 1;
  visibility: visible;
}

.gnb__depth a {
  display: block;
  white-space: nowrap;
}

.gnb__depth a:hover,
.gnb__depth a:focus-visible {
  color: var(--blue);
}

.search {
  display: flex;
  align-items: center;
  height: 50px;
  border: 2px solid #3b82db;
  border-radius: 14px;
  overflow: hidden;
}

.search input {
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0 14px;
  border: 0;
  color: #56616d;
}

.search button {
  width: 52px;
  height: 100%;
  border: 0;
  background: var(--white);
}

.search button img {
  width: 24px;
  height: 24px;
}

.menu-toggle {
  display: none;
}

main {
  background: #fff url("../images/bg.png") center 450px / max(1920px, 100%) auto no-repeat;
}

.hero {
  min-height: 450px;
  color: var(--white);
  overflow: hidden;
  background: url("../images/main_banner_01.png") center / cover no-repeat;
}

.hero__inner {
  min-height: 450px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-content: center;
  align-items: end;
  column-gap: 60px;
  row-gap: 0;
  position: relative;
}

.hero p,
.hero h2,
.hero__actions {
  position: relative;
  z-index: 1;
}

.hero p {
  grid-column: 1;
  margin: 110px 0 12px;
  font-size: clamp(24px, 2.2vw, 32px);
  line-height: 1.25;
  font-weight: 500;
}

.hero h2 {
  grid-column: 1;
  margin: 0;
  font-size: clamp(44px, 4.2vw, 66px);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: 0;
}

.hero__actions {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  gap: 22px;
  margin-bottom: 4px;
}

.hero__actions a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 178px;
  min-height: 54px;
  padding: 0 38px;
  border-radius: 999px;
  background: var(--white);
  color: var(--deep);
  font-weight: 800;
  box-shadow: 0 14px 32px rgba(0, 25, 55, 0.16);
}

.hero__actions a::after {
  content: "";
  width: 8px;
  height: 8px;
  margin-left: 28px;
  border-top: 3px solid currentColor;
  border-right: 3px solid currentColor;
  transform: rotate(45deg);
}

.slider-control button.is-paused {
  background: #dfdfdf;
}

.notice-wrap {
  position: relative;
  padding: 60px 0 40px;
}

.notice-grid,
.content-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(390px, 0.95fr);
  gap: 54px;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 0;
  font-size: 33px;
  line-height: 1.2;
  letter-spacing: 0;
  font-weight: 500;
}

.section-icon {
  width: 24px;
  height: auto;
  flex: 0 0 auto;
}

.section-head--line {
  margin-bottom: 34px;
}

.slider-control {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  color: #a0a9b4;
  font-weight: 500;
}

.slider-control strong {
  color: #697482;
}

.slider-control button {
  width: 28px;
  height: 28px;
  padding: 2px;
  border: 0;
  border-radius: 2px;
  background: transparent;
}

.promo .slider-control button {
  background: var(--white);
}

.mobility-card {
  display: block;
  border-radius: 10px;
  overflow: hidden;
  background: #cfe9ff;
}

.mobility-card img {
  display: block;
  width: 100%;
  height: auto;
}

.support-panel {
  display: grid;
  grid-template-rows: minmax(0, 1.28fr) minmax(0, 0.95fr);
  gap: 18px;
  height: 411px;
}

.support-card,
.quick-links,
.promo {
  border-radius: 12px;
  background: #f6f8fb;
}

.support-card {
  padding: 18px 30px;
}

.support-card p {
  margin: 0 0 4px;
  color: var(--deep);
  font-size: 22px;
  line-height: 1.28;
  font-weight: 400;
}

.support-card h2 {
  margin: 0 0 12px;
  color: var(--deep);
  font-size: 26px;
  line-height: 1.22;
  letter-spacing: 0;
}

.support-card dl {
  display: grid;
  gap: 6px;
  margin: 0;
}

.support-card dl > div {
  display: grid;
  grid-template-columns: minmax(74px, 0.8fr) minmax(112px, 1fr) minmax(58px, 0.7fr) minmax(150px, 1.45fr);
  align-items: center;
  min-height: 36px;
  column-gap: 14px;
  padding: 0 18px;
  border-radius: 6px;
  background: #3479cc;
  color: var(--white);
  font-weight: 400;
}

.support-card dl > div:nth-child(2) {
  background: #153b67;
}

.support-card dt {
  font-size: 13px;
  white-space: nowrap;
}

.support-card dd {
  margin: 0;
  font-size: 13px;
  white-space: nowrap;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 16px;
  padding: 27px 28px 22px;
}

.quick-links a {
  display: grid;
  justify-items: center;
  gap: 14px;
  color: #58616b;
  font-size: 16px;
  font-weight: 400;
}

.quick-links img {
  width: 60px;
  height: 60px;
}

.content-section {
  padding: 30px 0 72px;
}

.news .tabs {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 30px;
}

.tabs button {
  position: relative;
  padding: 0 0 6px;
  border: 0;
  background: transparent;
  color: #59636f;
  font-size: 19px;
  font-weight: 500;
}

.tabs button[aria-selected="true"] {
  color: var(--blue);
}

.tabs button[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--blue);
}

.tabs button + button::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  margin: 0 20px 4px 0;
  border-radius: 50%;
  background: #b8c1cc;
}

.more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  margin-left: auto;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #626d79;
  font-weight: 700;
}

.more::before {
  content: "+";
  color: var(--ink);
  font-weight: 900;
}

.tab-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 46px;
}

.tab-panel article {
  min-height: 210px;
  display: flex;
  flex-direction: column;
  padding-bottom: 22px;
  border-bottom: 2px solid #336997;
}

.tab-panel a {
  min-height: 58px;
  font-size: 19px;
  line-height: 1.35;
  font-weight: 700;
  display: -webkit-box;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.tab-panel p {
  margin: 4px 0 auto;
  color: #697482;
  font-size: 17px;
  line-height: 1.55;
}

.tab-panel time {
  margin-top: 22px;
  color: #6d7782;
  font-size: 15px;
}

.tab-panel time::before {
  content: "";
  display: inline-block;
  width: 15px;
  height: 15px;
  margin-right: 8px;
  background: url("../images/notification_regular.png") center / contain no-repeat;
  vertical-align: -2px;
}

.promo {
  padding: 18px 30px 30px;
  background: #d8f0ff;
}

.promo .section-head {
  margin-bottom: 16px;
}

.video-card {
  display: block;
  border-radius: 10px;
  overflow: hidden;
}

.video-card img {
  display: block;
  width: 100%;
  height: auto;
}

.footer {
  padding: 38px 0 46px;
  border-top: 1px solid #e2e7ee;
  color: #5f6872;
  font-size: 15px;
}

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 44px;
  align-items: center;
}

.footer__info p {
  margin: 0 0 14px;
}

.footer__info a:first-child {
  color: #1d75cd;
  font-weight: 900;
}

.footer__info address {
  margin-bottom: 12px;
  font-style: normal;
}

.footer__info strong {
  margin-left: 22px;
  color: #353d46;
}

.footer__info strong:first-child {
  margin-left: 0;
}

.footer__logos {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer__logos a {
  display: inline-flex;
  align-items: center;
  opacity: 0.82;
  transition: opacity 0.18s ease;
}

.footer__logos a:hover,
.footer__logos a:focus-visible {
  opacity: 1;
}

.footer__logos img {
  display: block;
  width: auto;
  max-width: 170px;
  max-height: 44px;
}

.footer__logos a:nth-child(3) img {
  max-width: 60px;
  max-height: 58px;
}

@media (max-width: 1180px) {
  .header__inner {
    grid-template-columns: 220px auto 260px;
    gap: 24px;
  }

  .gnb__list {
    gap: 24px;
    font-size: 18px;
  }

  .gnb__item + .gnb__item::before {
    left: -12px;
  }

  .gnb__depth {
    font-size: 15px;
    min-width: 145px;
  }

  .notice-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }

  .support-panel {
    height: auto;
    grid-template-rows: auto auto;
  }
}

@media (max-width: 820px) {
  .inner {
    width: min(calc(100% - 20px), var(--max));
        gap: 20px;
  }
  .support-card{padding:18px}

  .topbar__inner {
    min-height: 42px;
    font-size: 12px;
  }

  .tabs button{font-size:14px}
  .header__inner {
    grid-template-columns: 1fr auto;
    min-height: 72px;
  }

  .site-header::before {
    content: none;
  }

  .site-header::after {
    content: none;
    position: fixed;
    inset: 0;
    z-index: 40;
    background: rgba(7, 24, 43, 0.48);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  .site-header.is-open::after {
    opacity: 1;
    pointer-events: auto;
  }

  .logo img {
    width: 178px;
  }

  .menu-toggle {
    display: inline-grid;
    align-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 11px;
    border: none;
    border-radius: 8px;
    background: #fff;
    position: relative;
  }

  .menu-toggle span:not(.sr-only) {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--deep);
    transition: transform 0.2s ease, opacity 0.2s ease;
  }

  .gnb,
  .search {
    grid-column: 1 / -1;
  }

  .gnb {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 50;
    display: block;
    width: 100vw;
    height: 100vh;
    padding: 42px 22px 40px;
    background: #fff;
    transform: translateY(-105%);
    transition: transform 0.24s ease;
    overflow-y: auto;
  }

  .site-header.is-open .gnb {
    transform: translateY(0);
  }

  .gnb__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 84px;
    padding: 0 58px 26px 0;
    border-bottom: 1px solid #e7eef5;
    color: #516172;
    font-size: 13px;
  }

  .gnb__head img {
    width: 178px;
    height: auto;
  }

  .gnb__head div {
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
  }

  .gnb__list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
    border-top: 0;
    width: 100%;
    justify-items: stretch;
    margin-top: 30px;
  }

  .gnb__item {
    width: 100%;
    min-width: 0;
    list-style: none;
    text-align: left;
  }

  .gnb__item + .gnb__item::before {
    display: none;
  }

  .gnb__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 68px;
    padding: 0 24px;
    border-radius: 12px;
    color: var(--deep);
    background: #f4f8fc;
    font-size: 22px;
    font-weight: 500;
  }

  .gnb__link::after {
    content: "";
    width: 9px;
    height: 9px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(45deg);
    opacity: 0.72;
    transition: transform 0.18s ease;
  }

  .gnb__item.is-active .gnb__link {
    border-radius: 12px 12px 0 0;
    background: #eef5fb;
  }

  .gnb__item.is-active .gnb__link::after {
    transform: rotate(135deg);
  }

  .gnb__depth {
    position: static;
    display: none;
    gap: 0;
    min-width: 0;
    padding: 8px 16px 14px;
    margin: -2px 0 0;
    border: 1px solid #edf3f8;
    border-top: 0;
    border-radius: 0 0 12px 12px;
    background: #fbfdff;
    color: #4d5a66;
    font-size: 16px;
    text-align: left;
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .gnb__item.is-active .gnb__depth {
    display: grid;
  }

  .gnb__depth a {
    display: block;
    padding: 11px 8px;
    white-space: normal;
  }

  .gnb__depth a::after {
    content: none;
  }

  .site-header.is-open .menu-toggle {
    position: fixed;
    top: 46px;
    right: 10px;
    z-index: 60;
    background: #f7fbff;
    border-color: #d6e1ed;
    box-shadow: 0 10px 26px rgba(7, 24, 43, 0.16);
  }

  .site-header.is-open .menu-toggle span:not(.sr-only):nth-child(1) {
    position: absolute;
    left: 9px;
    top: 20.5px;
    width: 26px;
    height: 2px;
    transform: rotate(45deg);
  }

  .site-header.is-open .menu-toggle span:not(.sr-only):nth-child(2) {
    opacity: 0;
  }

  .site-header.is-open .menu-toggle span:not(.sr-only):nth-child(3) {
    position: absolute;
    left: 9px;
    top: 20.5px;
    width: 26px;
    height: 2px;
    transform: rotate(-45deg);
  }

  .search {
    height: 46px;
    margin-bottom: 14px;
  }

  .hero,
  .hero__inner {
    min-height: 318px;
  }

  main {
    background-position: left 318px;
    background-size: 760px auto;
  }

  .hero {
    background-position: center top;
  }

  .hero__inner {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 16px;
  }

  .hero p {
    margin: 0 0 4px;
    font-size: 19px;
  }

  .hero h2 {
    font-size: 34px;
  }

  .hero__actions {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 0;
  }

  .hero__actions a {
    min-width: 0;
    min-height: 44px;
    padding: 0 14px;
    font-size: 14px;
  }

  .notice-wrap {
    padding: 30px 0 34px;
  }

  .section-head {
    flex-wrap: nowrap;
    gap: 7px;
    min-height: 40px;
    margin-bottom: 14px;
  }

  .section-head h2 {
    letter-spacing: -1px;
    font-size: 20px;
    min-width: 0;
    white-space: nowrap;
  }

  .slider-control {
    width: auto;
    margin-left: auto;
    gap: 4px;
    font-size: 13px;
    white-space: nowrap;
  }

  .tab-panel a {
    min-height: 48px;
    font-size: 16px;
    line-height: 1.2;
    font-weight: 700;
  }

  .slider-control button {
    width: 24px;
    height: 24px;
    padding: 1px;
  }

  .support-card dl > div {
    grid-template-columns: 84px minmax(0, 1fr);
    row-gap: 6px;
    padding: 12px 16px;
  }

  .support-card dd {
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .quick-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    padding: 20px 12px 18px;
  }

  .quick-links a {
    gap: 10px;
    font-size: 13px;
  }

  .quick-links img {
    width: 48px;
    height: 48px;
  }

  .content-section {
    padding: 24px 0 44px;
  }

  .news .tabs {
    flex-wrap: wrap;
    gap: 12px 18px;
  }

  .tabs button + button::before {
    margin-right: 12px;
  }

  .more {
    display: none;
  }

  .tab-panel {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .tab-panel article {
    min-height: 0;
  }

  .promo {
    padding: 18px 18px 24px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .footer__logos {
    flex-wrap: wrap;
    gap: 16px 22px;
  }

  .footer__logos img {
    max-width: min(100%, 190px);
  }
}

@media (max-width: 520px) {
  .support-card p,
  .support-card h2 {
    font-size: 20px;
  }

  .footer {
    padding: 30px 0 36px;
    font-size: 13px;
  }

  .footer__inner {
    gap: 22px;
  }

  .footer__info p {
    margin-bottom: 10px;
  }

  .footer__info address {
    margin-bottom: 10px;
    line-height: 1.55;
  }

  .footer__info strong {
    display: inline-block;
    min-width: 54px;
    margin-left: 0;
    margin-right: 4px;
  }

  .footer__logos {
    display: flex;
    align-items: center;
    gap: 14px 18px;
    padding-top: 4px;
  }

  .footer__logos a {
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    width: auto;
    min-height: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .footer__logos img {
    width: auto;
    max-width: 128px;
    max-height: 30px;
    object-fit: contain;
    justify-self: center;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .footer__logos a:nth-child(3) {
    width: auto;
    min-width: 0;
    min-height: 0;
    padding: 0;
  }

  .footer__logos a:nth-child(3) img {
    width: auto;
    max-width: 52px;
    max-height: 44px;
  }
}