#langBtn {
  visibility: hidden;
}

.research_detail .v_news_content {
  position: relative;
  margin: 30px auto 0;
  padding: 8px 0 0;
  color: #26313b;
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", sans-serif;
  font-size: 18px;
  line-height: 1.78;
  --article-progress: 0%;
}

.research_detail .v_news_content h4,
.research_detail .v_news_content h5 {
  position: relative;
  margin: 38px 0 16px;
  padding: 15px 18px 15px 56px;
  border-radius: 7px;
  background: #073f78;
  color: #ffffff;
  font-family: Georgia, "Times New Roman", "PingFang SC", serif;
  font-size: 25px;
  line-height: 1.25;
  letter-spacing: 0;
  box-shadow: 0 8px 20px rgba(7, 63, 120, 0.14);
  overflow: hidden;
}

.research_detail .v_news_content h4 {
  cursor: pointer;
  padding-right: 58px;
}

.research_detail .v_news_content h4::after,
.research_detail .v_news_content h5::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.16) 45%, transparent 72%);
  transform: translateX(-120%);
  transition: transform 0.65s ease;
  pointer-events: none;
}

.research_detail .v_news_content h4:hover::after,
.research_detail .v_news_content h5:hover::after {
  transform: translateX(120%);
}

.research_detail .v_news_content h5 {
  margin-top: 42px;
  background: #0a6d8d;
  font-size: 23px;
}

.research_detail .v_news_content h4.section-alt {
  background: #0a6d8d;
}

.research_detail .v_news_content h4::before,
.research_detail .v_news_content h5::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 22px;
  width: 17px;
  height: 17px;
  border: 2px solid rgba(255, 255, 255, 0.86);
  border-radius: 50%;
  transform: translateY(-50%);
}

.research_detail .v_news_content h4:focus-visible {
  outline: 3px solid rgba(241, 139, 28, 0.35);
  outline-offset: 3px;
}

.research_detail .v_news_content > p,
.research_detail .v_news_content .article-section__inner > p {
  margin: 2px 0;
  color: #2f3b45;
  font-size: 18px;
  line-height: 1.78;
  text-align: left;
}

.research_detail .v_news_content > p:has(> strong:first-child),
.research_detail .v_news_content .article-section__inner > p:has(> strong:first-child) {
  min-height: 32px;
  margin: 2px 0;
  padding: 13px 18px 13px 58px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.research_detail .v_news_content > p:has(> strong:first-child):hover,
.research_detail .v_news_content .article-section__inner > p:has(> strong:first-child):hover {
  background: rgba(7, 63, 120, 0.045);
  transform: translateX(3px);
}

.research_detail .v_news_content > p:has(> strong:first-child) strong:first-child,
.research_detail .v_news_content .article-section__inner > p:has(> strong:first-child) strong:first-child {
  position: absolute;
  top: 14px;
  left: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 4px;
  border-radius: 6px;
  background: #f18b1c;
  color: #ffffff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  line-height: 1;
  box-shadow: 0 5px 12px rgba(241, 139, 28, 0.2);
}

.research_detail .v_news_content .writing-example {
  margin: 6px 0 6px 86px;
  padding: 9px 12px;
  border-left: 3px solid rgba(0, 73, 143, 0.26);
  border-radius: 6px;
  background: #f5f8fb;
  color: #34414c;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 15.5px;
  line-height: 1.64;
  text-align: left;
}

.research_detail .v_news_content .article-section__inner > p.writing-example {
  margin: 6px 0 6px 86px;
}

.research_detail .v_news_content span[style*="#ff0000"] {
  color: #c7372f !important;
  font-weight: 800;
}

.research_detail .v_news_content span[style*="#0000ff"] {
  color: #075fa8 !important;
  font-weight: 800;
}

.research_detail .v_news_content ul {
  margin: 20px 0 0;
  padding: 0;
}

.research_detail .v_news_content li {
  position: relative;
  margin: 7px 0;
  padding: 11px 16px 11px 42px;
  list-style: none;
  border: 0;
  border-radius: 7px;
  background: transparent;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.research_detail .v_news_content li:hover {
  background: rgba(10, 109, 141, 0.055);
  transform: translateX(3px);
}

.research_detail .v_news_content li::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #0a6d8d;
  box-shadow: 0 0 0 4px rgba(10, 109, 141, 0.12);
}

.research_detail .v_news_content li p {
  margin: 0;
  color: #2f3b45;
  font-size: 17px;
  line-height: 1.7;
  text-align: left;
}

.research_detail .v_news_content a {
  color: #00498f;
  font-weight: 700;
  text-underline-offset: 4px;
}

.research_detail .v_news_content.article-checklist-ready {
  padding-top: 0;
}

.article-section {
  position: relative;
}

.article-section:first-of-type h4 {
  margin-top: 0;
}

.article-section__body {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows 0.34s ease, opacity 0.26s ease;
}

.article-section__inner {
  min-height: 0;
  overflow: hidden;
  padding-left: 24px;
  transition: padding-bottom 0.34s ease, padding-top 0.34s ease;
}

.article-section:not(.is-collapsed) .article-section__inner {
  padding-top: 4px;
  padding-bottom: 12px;
}

.article-section.is-collapsed .article-section__body {
  grid-template-rows: 0fr;
  opacity: 0;
}

.article-section-toggle {
  position: absolute;
  top: 50%;
  right: 18px;
  z-index: 1;
  width: 26px;
  height: 26px;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-50%);
  transition: background-color 0.2s ease, transform 0.24s ease;
}

.article-section-toggle::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 9px;
  width: 7px;
  height: 7px;
  border-right: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  transform: rotate(45deg);
  transition: transform 0.24s ease;
}

.research_detail .v_news_content h4:hover .article-section-toggle {
  background: rgba(255, 255, 255, 0.2);
}

.article-section.is-collapsed .article-section-toggle::before {
  transform: translateY(3px) rotate(-45deg);
}

.article-progress {
  position: sticky;
  top: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
  padding: 11px 14px;
  border: 1px solid rgba(0, 73, 143, 0.12);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 24px rgba(18, 44, 67, 0.07);
  backdrop-filter: blur(8px);
}

.article-progress__track {
  position: relative;
  flex: 1 1 auto;
  height: 8px;
  overflow: hidden;
  border-radius: 99px;
  background: rgba(0, 73, 143, 0.1);
}

.article-progress__bar {
  display: block;
  width: var(--article-progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #f18b1c, #0a6d8d);
  transition: width 0.35s ease;
}

.article-progress__count {
  min-width: 82px;
  color: #073f78;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  text-align: right;
}

.research_detail .v_news_content .is-check-item,
.research_detail .v_news_content .is-question-item {
  cursor: pointer;
}

.research_detail .v_news_content .is-check-item:focus-visible,
.research_detail .v_news_content .is-question-item:focus-visible {
  outline: 3px solid rgba(241, 139, 28, 0.3);
  outline-offset: 3px;
}

.article-check-toggle {
  position: absolute;
  right: 16px;
  top: 50%;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(0, 73, 143, 0.3);
  border-radius: 50%;
  transform: translateY(-50%);
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.article-check-toggle::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 5px;
  width: 4px;
  height: 9px;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  opacity: 0;
  transform: rotate(45deg) scale(0.5);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.research_detail .v_news_content .is-check-item {
  padding-right: 64px;
}

.research_detail .v_news_content > p.is-check-item,
.research_detail .v_news_content .article-section__inner > p.is-check-item {
  padding-right: 64px;
}

.research_detail .v_news_content > p.is-check-item:has(> strong:first-child),
.research_detail .v_news_content .article-section__inner > p.is-check-item:has(> strong:first-child) {
  padding-right: 64px;
}

.research_detail .v_news_content .is-question-item {
  padding-right: 64px;
}

.research_detail .v_news_content .is-complete {
  background: linear-gradient(90deg, rgba(10, 109, 141, 0.08), transparent 72%);
}

.research_detail .v_news_content .is-complete .article-check-toggle {
  border-color: #0a6d8d;
  background: #0a6d8d;
  transform: translateY(-50%) scale(1.05);
}

.research_detail .v_news_content .is-complete .article-check-toggle::after {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.research_detail .v_news_content .is-complete strong:first-child {
  background: #0a6d8d !important;
  color: #ffffff !important;
  box-shadow: 0 5px 12px rgba(10, 109, 141, 0.18);
}

.research_detail .v_news_content.article-checklist-ready h4,
.research_detail .v_news_content.article-checklist-ready h5,
.research_detail .v_news_content.article-checklist-ready .article-section__body,
.research_detail .v_news_content.article-checklist-ready .is-check-item,
.research_detail .v_news_content.article-checklist-ready .writing-example,
.research_detail .v_news_content.article-checklist-ready .is-question-item {
  animation: checklistIn 0.46s ease both;
}

@keyframes checklistIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .research_detail .v_news_content *,
  .research_detail .v_news_content *::before,
  .research_detail .v_news_content *::after {
    animation: none !important;
    transition: none !important;
  }
}