/* 02. Điểm Cốt Lõi (Key Takeaways) */
.article-content-body .key-takeaways {
  display: block;
  background: #0f172a;
  color: #cbd5e1;
  border-radius: 18px;
  padding: 1.6rem 1.85rem;
  border: 1px solid #1e293b;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.25);
  margin: 2.25rem 0;
  position: relative;
  overflow: hidden;
}

@media (max-width: 640px) {
  .article-content-body .key-takeaways {
    border-radius: 14px;
    padding: 1.15rem 1.25rem;
    margin: 1.5rem 0;
  }
}

.article-content-body .key-takeaways::after {
  content: '';
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.article-content-body .key-takeaways .takeaway-badge {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fb7185;
  background: rgba(225, 29, 72, 0.12);
  border: 1px solid rgba(225, 29, 72, 0.25);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.article-content-body .key-takeaways .takeaway-list {
  list-style: none;
  list-style-type: none;
  padding-left: 0;
  padding-inline-start: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.article-content-body .key-takeaways ul.takeaway-list,
.article-content-body .key-takeaways .takeaway-list li {
  list-style: none !important;
}

.article-content-body .key-takeaways .takeaway-list li::marker {
  content: "";
}

.article-content-body .key-takeaways .takeaway-list li {
  position: relative;
  padding-left: 1.75rem;
  color: #e2e8f0;
  font-size: 0.925rem;
  line-height: 1.65;
  margin-bottom: 0;
}

.article-content-body .key-takeaways .takeaway-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #e11d48;
  color: #ffffff;
  font-size: 10px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

.article-content-body .key-takeaways .takeaway-list li strong {
  color: #ffffff;
  font-weight: 700;
}

.dark .article-content-body .key-takeaways {
  background: #020617;
  border-color: #1e293b;
}

/* 03. Hệ Thống Tiêu Đề Phong Cách (Heading Styles) */
.article-content-body h2.heading-badge,
.article-content-body .heading-badge {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--foreground);
  margin: 2.5rem 0 1.25rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .article-content-body h2.heading-badge,
  .article-content-body .heading-badge {
    font-size: 1.65rem;
  }
}

.article-content-body .heading-badge > span,
.article-content-body h2.heading-badge > span {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  background: linear-gradient(135deg, #e11d48, #be123c);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(225, 29, 72, 0.25);
  flex-shrink: 0;
}

.article-content-body h2.heading-number,
.article-content-body .heading-number {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--foreground);
  margin: 2.5rem 0 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .article-content-body h2.heading-number,
  .article-content-body .heading-number {
    font-size: 1.65rem;
  }
}

.article-content-body .heading-number .num-circle,
.article-content-body h2.heading-number .num-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--foreground);
  color: var(--background);
  font-size: 0.95rem;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.article-content-body h2.heading-underline,
.article-content-body .heading-underline {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .65rem .85rem;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--foreground);
  margin: 2.5rem 0 1.25rem;
  position: relative;
  padding-bottom: 0.65rem;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

@media (min-width: 640px) {
  .article-content-body h2.heading-underline,
  .article-content-body .heading-underline {
    font-size: 1.65rem;
  }
}

.article-content-body .heading-underline::after,
.article-content-body h2.heading-underline::after {
  content: none;
}

.article-content-body h3.heading-bar,
.article-content-body .heading-bar {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .65rem .85rem;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--foreground);
  margin: 2rem 0 1rem;
  padding-left: 0.85rem;
  line-height: 1.4;
  letter-spacing: -0.015em;
}

@media (min-width: 640px) {
  .article-content-body h3.heading-bar,
  .article-content-body .heading-bar {
    font-size: 1.35rem;
  }
}