.extc {
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Noto Sans KR", "Malgun Gothic", sans-serif;
  display: flex;
  justify-content: center;
  padding: 64px 16px 96px;
  color: #1f2430;
  box-sizing: border-box;
}
.extc * {
  box-sizing: border-box;
}
.extc button {
  font-family: inherit;
}
.extc [hidden] {
  display: none !important;
}

.extc__card {
  width: 100%;
  max-width: 480px;
  padding: 32px 28px;
  border: 1px solid #e6e9ef;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 8px 30px rgba(16, 24, 40, 0.06);
}

.extc__title {
  margin: 0 0 10px;
  font-size: 22px;
  font-weight: 700;
}

.extc__desc {
  margin: 0 0 16px;
  color: #7b8494;
  line-height: 1.6;
}

.extc__list {
  margin: 0 0 22px;
  padding: 14px 16px;
  list-style: none;
  border-radius: 10px;
  background: #f6f7fa;
  line-height: 1.8;
  font-size: 14px;
}

.extc__muted {
  color: #7b8494;
}

.extc__btn {
  width: 100%;
  height: 48px;
  border: 0;
  border-radius: 10px;
  background: #3d6cf0;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}
.extc__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.extc__ok {
  margin: 0;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(31, 157, 85, 0.08);
  color: #1f9d55;
  font-weight: 600;
  line-height: 1.6;
}

.extc__warn {
  margin: 14px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(217, 119, 6, 0.08);
  color: #d97706;
  font-size: 13.5px;
  line-height: 1.6;
}

.extc--doc .extc__card {
  max-width: 820px;
  font-size: 14px;
  line-height: 1.7;
}
.extc--doc h2 {
  margin: 22px 0 6px;
  font-size: 16px;
}
.extc--doc p {
  margin: 0 0 8px;
}
.extc--doc ul {
  margin: 0 0 8px;
  padding-left: 20px;
  list-style: disc;
}
.extc--doc ul li {
  margin: 3px 0;
  list-style: disc;
}
.extc--doc hr {
  margin: 32px 0 24px;
  border: 0;
  border-top: 1px solid #e6e9ef;
}

.extg {
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Noto Sans KR", "Malgun Gothic", sans-serif;
  padding: 48px 16px 96px;
  color: #1f2430;
  font-size: 14px;
  line-height: 1.6;
  box-sizing: border-box;
}
.extg * {
  box-sizing: border-box;
}
.extg button {
  font-family: inherit;
  margin: 0;
}
.extg a {
  text-decoration: none;
}
.extg code {
  padding: 1px 6px;
  border-radius: 5px;
  background: #eef1f6;
  font-family: Consolas, "D2Coding", monospace;
  font-size: 12.5px;
}

.extg__wrap {
  max-width: 860px;
  margin: 0 auto;
}

.extg__head {
  margin-bottom: 20px;
}

.extg__title {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 700;
}

.extg__desc {
  margin: 0;
  color: #7b8494;
}

.extg__status {
  padding: 22px 24px;
  border: 1px solid #e6e9ef;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 6px 24px rgba(16, 24, 40, 0.05);
}

.extg__status-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.extg__status-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 16px;
  border-radius: 10px;
  background: #f6f7fa;
}

.extg__label {
  color: #7b8494;
  font-size: 12.5px;
}

.extg__value {
  font-size: 17px;
  font-weight: 700;
}
.extg__value.is-ok {
  color: #1f9d55;
}
.extg__value.is-old {
  color: #d97706;
}
.extg__value.is-none {
  color: #7b8494;
}

.extg__muted {
  color: #7b8494;
  font-size: 12px;
}

.extg__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.extg .extg__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  border: 1px solid #e6e9ef;
  border-radius: 10px;
  background: #fff;
  color: #1f2430;
  font-weight: 700;
}
.extg .extg__btn small {
  font-weight: 500;
  opacity: 0.8;
}
.extg .extg__btn:hover {
  border-color: #3d6cf0;
  color: #3d6cf0;
}
.extg .extg__btn--primary, .extg .extg__btn--primary:visited {
  border-color: #3d6cf0;
  background: #3d6cf0;
  color: #fff;
}
.extg .extg__btn--primary small, .extg .extg__btn--primary:visited small {
  opacity: 0.9;
}
.extg .extg__btn--primary:hover, .extg .extg__btn--primary:visited:hover {
  background: rgb(23.1282296651, 79.3033492823, 237.0717703349);
  color: #fff;
}

.extg__note {
  margin: 14px 0 0;
  color: #7b8494;
  font-size: 13px;
}

.extg__warn {
  margin: 0;
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(217, 119, 6, 0.08);
  color: #d97706;
  font-size: 13.5px;
}

.extg__sec {
  margin-top: 36px;
}

.extg__h2 {
  margin: 0 0 14px;
  font-size: 19px;
  font-weight: 700;
}

.extg__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.extg__step {
  position: relative;
  display: flex;
  gap: 14px;
  padding: 0 0 18px;
}
.extg__step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 34px;
  bottom: 2px;
  width: 2px;
  background: #e6e9ef;
}

.extg__num {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(61, 108, 240, 0.1);
  color: #3d6cf0;
  font-weight: 700;
}

.extg__body {
  flex: 1;
  min-width: 0;
  padding-top: 4px;
}
.extg__body .extg__step-title {
  display: block;
  font-size: 15px;
}
.extg__body p b {
  font-weight: 700;
  color: #1f2430;
}
.extg__body p {
  margin: 2px 0 0;
  color: #4a5263;
}

.extg__urls {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.extg__urls li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid #e6e9ef;
  border-radius: 9px;
  background: #fff;
}
.extg__urls li span {
  width: 56px;
  color: #7b8494;
  font-size: 13px;
}
.extg__urls li code {
  flex: 1;
  background: none;
  padding: 0;
  font-size: 13px;
}

.extg .extg__copy {
  flex: none;
  color: #1f2430;
  line-height: 26px;
  height: 28px;
  padding: 0 12px;
  border: 1px solid #e6e9ef;
  border-radius: 7px;
  background: #fff;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}
.extg .extg__copy:hover {
  border-color: #3d6cf0;
  color: #3d6cf0;
}

.extg__faq details {
  border: 1px solid #e6e9ef;
  border-radius: 10px;
  background: #fff;
}
.extg__faq details + details {
  margin-top: 8px;
}
.extg__faq summary {
  padding: 13px 16px;
  font-weight: 600;
  cursor: pointer;
}
.extg__faq p {
  margin: 0;
  padding: 0 16px 14px;
  color: #4a5263;
}

@media (max-width: 640px) {
  .extg {
    padding-top: 28px;
  }
  .extg__title {
    font-size: 21px;
  }
  .extg__status {
    padding: 16px;
  }
  .extg__status-row {
    grid-template-columns: 1fr;
  }
  .extg__btn {
    width: 100%;
    justify-content: center;
  }
}