/* ===== Trợ Giúp Page (support.html) ===== */
.page-support {
  background: #F5F7FA;
  color: #333333;
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
  line-height: 1.6;
}
.page-support__hero-section {
  padding-top: 10px;
}
.page-support__hero-image {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
.page-support__hero-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 17/5;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}
.page-support__hero-content {
  max-width: 1000px;
  margin: 0 auto;
  padding: 32px 16px 24px;
  text-align: center;
}
.page-support__hero-content h1 {
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.5px;
  color: #E53935;
  margin-bottom: 12px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.page-support__hero-description {
  font-size: 1.1rem;
  color: #4a4a4a;
  max-width: 800px;
  margin: 0 auto 24px;
}
.page-support__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.page-support__btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}
.page-support__btn--primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(229, 57, 53, 0.3);
}
.page-support__btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(229, 57, 53, 0.4);
}
.page-support__btn--secondary {
  background: transparent;
  color: #E53935;
  border-color: #E53935;
}
.page-support__btn--secondary:hover {
  background: rgba(229, 57, 53, 0.08);
}
.page-support__logo-section {
  padding: 16px 16px 32px;
}
.page-support__logo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px 16px;
  justify-items: center;
  align-items: stretch;
  max-width: 1200px;
  margin: 0 auto;
}
.page-support__logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 280px;
  width: 100%;
  background: #FFFFFF;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  padding: 16px 12px;
  transition: box-shadow 0.2s ease;
}
.page-support__logo-item:hover {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}
.page-support__logo-image {
  width: 100%;
  aspect-ratio: 2/1;
  object-fit: contain;
  border-radius: 4px;
}
.page-support__logo-cta {
  padding: 10px 28px;
  border-radius: 50px;
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}
.page-support__logo-cta:hover {
  transform: scale(1.03);
  box-shadow: 0 4px 12px rgba(229, 57, 53, 0.3);
}
.page-support__logo-item:nth-child(5) {
  grid-column: 2;
}
.page-support__logo-item:nth-child(6) {
  grid-column: 3;
}
.page-support__guide-inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px 16px 48px;
}
.page-support__guide-title {
  text-align: center;
  color: #E53935;
  font-weight: 700;
  margin-bottom: 24px;
}
.page-support__guide-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.page-support__guide-item {
  background: #FFFFFF;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  padding: 24px;
  overflow: hidden;
}
.page-support__guide-item h3 {
  color: #E53935;
  margin-bottom: 12px;
}
.page-support__guide-item img {
  width: 100%;
  height: auto;
  aspect-ratio: 2/1;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 16px;
}
.page-support__guide-item p {
  margin-bottom: 0;
}
.page-support__guide-inner details {
  background: #FFFFFF;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 12px;
}
.page-support__guide-inner summary {
  cursor: pointer;
  font-weight: 600;
  color: #333333;
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.page-support__guide-inner summary::-webkit-details-marker {
  display: none;
}
.page-support__guide-inner details p {
  margin: 12px 0 0;
  padding-left: 24px;
  color: #4a4a4a;
}
.page-support__guide-cta {
  text-align: center;
  margin-top: 32px;
}
.page-support__guide-cta .page-support__btn {
  min-width: 220px;
}
@media (max-width: 1024px) {
  .page-support__logo-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-support__logo-item:nth-child(5),
  .page-support__logo-item:nth-child(6) {
    grid-column: auto;
  }
}
@media (max-width: 768px) {
  .page-support__hero-image img {
    aspect-ratio: 2/1;
  }
  .page-support__hero-content {
    padding: 24px 12px 20px;
  }
  .page-support__hero-actions {
    flex-direction: column;
    gap: 12px;
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
  }
  .page-support__btn {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }
  .page-support__logo-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .page-support__logo-item {
    padding: 12px 8px;
  }
  .page-support__logo-item:nth-child(5),
  .page-support__logo-item:nth-child(6) {
    grid-column: auto;
  }
  .page-support__logo-cta {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }
  .page-support__guide-inner details {
    padding: 14px 16px;
  }
  .page-support__guide-inner summary {
    flex-wrap: wrap;
  }
  .page-support__guide-cta .page-support__btn {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    white-space: normal;
    word-wrap: break-word;
  }
  .page-support img {
    max-width: 100%;
    height: auto;
  }
}