/* Biến màu sắc */
:root {
  --page-news-primary-color: #2F6BFF;
  --page-news-secondary-color: #6FA3FF;
  --page-news-button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  --page-news-card-bg: #FFFFFF;
  --page-news-background-color: #F4F7FB;
  --page-news-text-main-color: #1F2D3D;
  --page-news-text-dark-color: #000000;
  --page-news-border-color: #D6E2FF;
  --page-news-glow-color: #A5C4FF;
}

.page-news {
  font-family: 'Arial', sans-serif;
  color: var(--page-news-text-main-color); /* Body nền sáng, chữ tối */
  background-color: var(--page-news-background-color);
  line-height: 1.6;
}

.page-news__section {
  padding: 60px 0;
  position: relative;
  z-index: 1;
}

.page-news__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.page-news__section-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--page-news-text-dark-color);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-news__section-description {
  font-size: 18px;
  color: var(--page-news-text-main-color);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-news__hero-section {
  background-color: var(--page-news-background-color);
  padding-top: 10px; /* Nhỏ hơn so với header offset */
  padding-bottom: 60px;
  text-align: center;
}

.page-news__hero-image-wrapper {
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 30px;
}

.page-news__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 10px;
}

.page-news__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 15px;
}

.page-news__main-title {
  font-size: 48px;
  font-weight: 800;
  color: var(--page-news-text-dark-color);
  margin-bottom: 20px;
  line-height: 1.1;
}

.page-news__description {
  font-size: 20px;
  color: var(--page-news-text-main-color);
  margin-bottom: 30px;
}

.page-news__cta-button {
  display: inline-block;
  background: var(--page-news-button-gradient);
  color: #ffffff;
  padding: 15px 35px;
  border-radius: 8px;
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-news__cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}

.page-news__articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.page-news__article-card {
  background: var(--page-news-card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-news__article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-news__article-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.page-news__article-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.page-news__article-content {
  padding: 20px;
}

.page-news__article-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--page-news-text-dark-color);
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-news__article-excerpt {
  font-size: 16px;
  color: var(--page-news-text-main-color);
  margin-bottom: 15px;
}

.page-news__article-date {
  font-size: 14px;
  color: #666;
}

.page-news__view-all-news-container {
  text-align: center;
  margin-top: 50px;
}

.page-news__view-all-news-button {
  display: inline-block;
  background: var(--page-news-secondary-color);
  color: #ffffff;
  padding: 12px 30px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-news__view-all-news-button:hover {
  background-color: #5a94ee;
}

.page-news__dark-section {
  background-color: var(--page-news-primary-color);
  color: #ffffff;
}

.page-news__dark-section .page-news__section-title,
.page-news__dark-section .page-news__section-description {
  color: #ffffff;
}

.page-news__promo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.page-news__promo-card {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.page-news__promo-card:hover {
  transform: translateY(-5px);
}

.page-news__promo-title {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 15px;
}

.page-news__promo-text {
  font-size: 16px;
  color: #f0f0f0;
  margin-bottom: 25px;
}

.page-news__btn-primary {
  display: inline-block;
  background: var(--page-news-button-gradient);
  color: #ffffff;
  padding: 12px 25px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-news__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-news__guides-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.page-news__guide-card {
  background: var(--page-news-card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  text-align: center;
}

.page-news__guide-card:hover {
  transform: translateY(-5px);
}

.page-news__guide-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--page-news-text-dark-color);
  margin-bottom: 15px;
}

.page-news__guide-text {
  font-size: 16px;
  color: var(--page-news-text-main-color);
  margin-bottom: 25px;
}

.page-news__btn-secondary {
  display: inline-block;
  background: #ffffff;
  color: var(--page-news-primary-color);
  padding: 12px 25px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid var(--page-news-primary-color);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-news__btn-secondary:hover {
  background: var(--page-news-primary-color);
  color: #ffffff;
}

.page-news__light-bg {
  background-color: var(--page-news-background-color);
  color: var(--page-news-text-main-color);
}

.page-news__community-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.page-news__community-card {
  background: var(--page-news-card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.page-news__community-card:hover {
  transform: translateY(-5px);
}

.page-news__community-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--page-news-text-dark-color);
  margin-bottom: 15px;
}

.page-news__community-text {
  font-size: 16px;
  color: var(--page-news-text-main-color);
}

.page-news__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

details.page-news__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--page-news-border-color);
  overflow: hidden;
  background: var(--page-news-card-bg);
}

details.page-news__faq-item summary.page-news__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

details.page-news__faq-item summary.page-news__faq-question::-webkit-details-marker {
  display: none;
}

details.page-news__faq-item summary.page-news__faq-question:hover {
  background: #f5f5f5;
}

.page-news__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--page-news-text-dark-color);
}

.page-news__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}

details.page-news__faq-item .page-news__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: var(--page-news-text-main-color);
}

.page-news__cta-section {
  padding: 80px 0;
  background-color: var(--page-news-primary-color);
  background-image: linear-gradient(to right, var(--page-news-primary-color), var(--page-news-secondary-color));
  color: #ffffff;
}

.page-news__cta-card {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-news__cta-image {
  width: 40%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-news__cta-content {
  width: 60%;
  padding: 40px;
  text-align: left;
}

.page-news__cta-title {
  font-size: 38px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-news__cta-description {
  font-size: 18px;
  color: #f0f0f0;
  margin-bottom: 30px;
}

.page-news__cta-content .page-news__btn-primary {
  font-size: 18px;
  padding: 15px 40px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.text-highlight {
  color: #A5C4FF;
  font-weight: bold;
}

/* General image responsiveness */
.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* General button responsiveness */
.page-news__cta-button,
.page-news__btn-primary,
.page-news__btn-secondary,
.page-news__view-all-news-button,
.page-news a[class*="button"],
.page-news a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-news__cta-buttons,
.page-news__button-group,
.page-news__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* --- Mobile Responsive Styles (max-width: 768px) --- */
@media (max-width: 768px) {
  .page-news__section {
    padding: 40px 0;
  }

  .page-news__container {
    padding: 0 15px;
  }

  .page-news__section-title {
    font-size: 28px;
    margin-bottom: 15px;
  }

  .page-news__section-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  /* Banner __hero-section */
  .page-news__hero-section {
    padding-top: 10px; /* Consistent small top padding */
    padding-bottom: 40px;
  }

  .page-news__hero-image-wrapper {
    margin-bottom: 20px;
  }

  .page-news__hero-image {
    height: 250px;
    object-fit: contain; /* Banner 849px object-fit:contain */
  }

  .page-news__main-title {
    font-size: 32px;
    margin-bottom: 15px;
  }

  .page-news__description {
    font-size: 16px;
    margin-bottom: 25px;
  }

  .page-news__cta-button {
    padding: 12px 25px;
    font-size: 18px;
  }

  /* Articles Grid */
  .page-news__articles-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-news__article-image {
    height: 180px;
  }

  .page-news__article-title {
    font-size: 18px;
  }

  .page-news__article-excerpt {
    font-size: 14px;
  }

  .page-news__view-all-news-container {
    margin-top: 30px;
  }

  .page-news__view-all-news-button {
    padding: 10px 25px;
    font-size: 16px;
  }

  /* Promo Grid */
  .page-news__promo-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-news__promo-card {
    padding: 25px;
  }

  .page-news__promo-title {
    font-size: 20px;
  }

  .page-news__promo-text {
    font-size: 14px;
  }

  .page-news__btn-primary {
    padding: 10px 20px;
    font-size: 15px;
  }

  /* Guides Grid */
  .page-news__guides-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-news__guide-card {
    padding: 25px;
  }

  .page-news__guide-title {
    font-size: 20px;
  }

  .page-news__guide-text {
    font-size: 14px;
  }

  .page-news__btn-secondary {
    padding: 10px 20px;
    font-size: 15px;
  }

  /* Community Cards */
  .page-news__community-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-news__community-card {
    padding: 25px;
  }

  .page-news__community-title {
    font-size: 20px;
  }

  .page-news__community-text {
    font-size: 14px;
  }

  /* FAQ Section */
  details.page-news__faq-item summary.page-news__faq-question {
    padding: 15px;
  }

  .page-news__faq-qtext {
    font-size: 16px;
  }

  details.page-news__faq-item .page-news__faq-answer {
    padding: 0 15px 15px;
  }

  /* CTA Section */
  .page-news__cta-section {
    padding: 50px 0;
  }

  .page-news__cta-card {
    flex-direction: column;
  }

  .page-news__cta-image {
    width: 100%;
    height: 180px;
  }

  .page-news__cta-content {
    width: 100%;
    padding: 30px;
    text-align: center;
  }

  .page-news__cta-title {
    font-size: 28px;
  }

  .page-news__cta-description {
    font-size: 16px;
    margin-bottom: 25px;
  }

  .page-news__cta-content .page-news__btn-primary {
    padding: 12px 30px;
    font-size: 16px;
  }

  /* Mobile image responsiveness (强制要求) */
  .page-news img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-news__section,
  .page-news__article-card,
  .page-news__promo-card,
  .page-news__guide-card,
  .page-news__community-card,
  .page-news__cta-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
  }

  /* Mobile button responsiveness (强制要求) */
  .page-news__cta-button,
  .page-news__btn-primary,
  .page-news__btn-secondary,
  .page-news__view-all-news-button,
  .page-news a[class*="button"],
  .page-news a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-news__cta-buttons,
  .page-news__button-group,
  .page-news__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-news__cta-buttons {
    display: flex;
    flex-direction: column;
  }
}

/* --- Mobile Responsive Styles (max-width: 1024px) --- */
@media (max-width: 1024px) {
  .page-news__articles-grid,
  .page-news__promo-grid,
  .page-news__guides-grid,
  .page-news__community-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }

  .page-news__article-image {
    height: 200px;
  }

  .page-news__cta-card {
    flex-direction: column;
  }

  .page-news__cta-image {
    width: 100%;
    height: 250px;
  }

  .page-news__cta-content {
    width: 100%;
    padding: 30px;
    text-align: center;
  }

  .page-news__main-title {
    font-size: 40px;
  }

  .page-news__section-title {
    font-size: 32px;
  }

  .page-news__cta-title {
    font-size: 32px;
  }
}