/* 3.1.0 업데이트 예정 섹션 전용 스코프 스타일시트 (홈/기능/이용방법/FAQ/다운로드 공통) */

.u310-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: #16233F;
  background: #E8EBF3;
  border-radius: 999px;
  padding: 5px 12px;
  margin-bottom: 16px;
}
.u310-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #16233F;
}

.u310-lead {
  color: #5b6472;
  font-size: 15px;
  line-height: 1.85;
  margin: 14px 0 0;
  max-width: 62ch;
}

/* 구조화된 행 (기능·이용방법) */
.u310-rows {
  margin-top: 30px;
  display: grid;
  gap: 0;
}
.u310-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 28px;
  padding: 22px 0;
  border-top: 1px solid #dde2e9;
}
.u310-row:last-child { border-bottom: 1px solid #dde2e9; }
.u310-row h3 {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #16233F;
  margin: 0;
}
.u310-row p {
  font-size: 15px;
  line-height: 1.78;
  color: #5b6472;
  margin: 0;
}
.u310-row p + p { margin-top: 8px; }
.u310-row a {
  color: #16233F;
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 3px;
}
@media (min-width: 760px) {
  .u310-row { grid-template-columns: 220px 1fr; }
}

/* 구성 모드 카드 */
.u310-modes {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 560px) {
  .u310-modes { grid-template-columns: 1fr 1fr; }
}
.u310-mode {
  background: #fff;
  border: 1px solid #dde2e9;
  border-radius: 12px;
  padding: 16px 18px;
}
.u310-mode b {
  display: block;
  font-size: 15px;
  font-weight: 750;
  color: #16233F;
  margin-bottom: 4px;
}
.u310-mode span {
  font-size: 14px;
  line-height: 1.65;
  color: #5b6472;
}

/* 보조 기능 리스트 */
.u310-sub {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}
.u310-sub > div {
  display: flex;
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.7;
  color: #5b6472;
}
.u310-sub > div::before {
  content: "";
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  margin-top: 8px;
  border-radius: 2px;
  background: #16233F;
}
.u310-sub b { color: #1b2332; font-weight: 700; }

/* 안내 노트 */
.u310-note {
  margin-top: 22px;
  background: #f4f6f9;
  border-left: 3px solid #16233F;
  border-radius: 10px;
  padding: 15px 18px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #5b6472;
}
.u310-note b { color: #1b2332; }

/* 다운로드 페이지 체인지로그 */
.u310-changelog {
  background: #fff;
  border-left: 4px solid #16233F;
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: 0 10px 26px -20px rgba(22, 35, 63, 0.18);
  margin: 8px 0 0;
}
.u310-changelog h3 {
  font-size: 16px;
  font-weight: 800;
  color: #16233F;
  margin: 0 0 4px;
}
.u310-changelog .u310-when {
  font-size: 12.5px;
  font-weight: 700;
  color: #8a92a0;
  display: block;
  margin-bottom: 12px;
}
.u310-changelog ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.u310-changelog li {
  font-size: 14px;
  line-height: 1.7;
  color: #5b6472;
  padding-left: 16px;
  position: relative;
}
.u310-changelog li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #16233F;
}
.u310-changelog li b { color: #1b2332; font-weight: 700; }

/* FAQ 그룹 구분선 */
.u310-faq-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 6px 2px 2px;
  font-size: 12px;
  font-weight: 800;
  color: #8a92a0;
}
.u310-faq-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: #dde2e9;
}