.page-tin-tuc {
  --primary-color: #C91F17;
  --secondary-color: #E53935;
  --background-dark: #B71C1C;
  --card-bg: #D32F2F;
  --text-light: #FFF5E1;
  --border-gold: #F2B544;
  --button-gradient: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%);
  color: var(--text-light); /* Main body text color for dark background */
  background-color: var(--background-dark);
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  font-size: 16px;
}

.page-tin-tuc__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  box-sizing: border-box;
}

.page-tin-tuc__hero-section {
  padding-top: 10px; /* Small top padding, body handles header offset */
  position: relative;
  overflow: hidden;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-tin-tuc__hero-image-wrapper {
  width: 100%;
  height: 600px;
  overflow: hidden;
  position: relative;
}

.page-tin-tuc__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-tin-tuc__hero-content {
  padding: 40px 20px;
  width: 100%;
  box-sizing: border-box;
  background-color: var(--card-bg);
  color: var(--text-light);
  border-bottom: 5px solid var(--border-gold);
}

.page-tin-tuc__main-title {
  font-size: clamp(2em, 3.5vw, 3.2em); /* Responsive H1 font size */
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-light);
  line-height: 1.2;
}

.page-tin-tuc__hero-description {
  font-size: clamp(1em, 1.5vw, 1.2em);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-light);
}

.page-tin-tuc__hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-tin-tuc__btn-primary,
.page-tin-tuc__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
  width: auto;
}

.page-tin-tuc__btn-primary {
  background-color: var(--primary-color);
  color: #ffffff;
  border: 2px solid var(--primary-color);
}

.page-tin-tuc__btn-primary:hover {
  background-color: #a01a14;
  border-color: #a01a14;
}

.page-tin-tuc__btn-secondary {
  background-color: #ffffff;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.page-tin-tuc__btn-gold {
  background: var(--button-gradient);
  color: #333333; /* Dark text for light gold button */
  border: none;
}

.page-tin-tuc__btn-gold:hover {
  background: linear-gradient(180deg, #E6B800 0%, #FFD86A 100%);
  color: #000000;
}

.page-tin-tuc__btn-download {
  background-color: #3498db;
  color: #ffffff;
  border: 2px solid #3498db;
}

.page-tin-tuc__btn-download:hover {
  background-color: #2980b9;
  border-color: #2980b9;
}

.page-tin-tuc__light-bg {
  background-color: #ffffff;
  color: #333333;
}

.page-tin-tuc__dark-section {
  background-color: var(--background-dark);
  color: var(--text-light);
}

.page-tin-tuc__section-title {
  font-size: clamp(1.8em, 3vw, 2.5em);
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
  color: var(--primary-color);
}

.page-tin-tuc__section-title--light {
  color: var(--text-light);
}

.page-tin-tuc__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 40px auto;
  color: #555555;
}

.page-tin-tuc__section-description--light {
  color: #cccccc;
}

.page-tin-tuc__news-grid,
.page-tin-tuc__article-grid,
.page-tin-tuc__category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-tin-tuc__card {
  background-color: #ffffff;
  color: #333333;
  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;
  display: flex;
  flex-direction: column;
}

.page-tin-tuc__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-tin-tuc__card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-tin-tuc__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-tin-tuc__card-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-tin-tuc__card-title {
  font-size: 1.3em;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--primary-color);
}

.page-tin-tuc__card-title--dark {
  color: var(--text-light);
}

.page-tin-tuc__card-excerpt {
  font-size: 0.95em;
  line-height: 1.5;
  color: #666666;
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-tin-tuc__card-excerpt--dark {
  color: #cccccc;
}

.page-tin-tuc__card-date {
  font-size: 0.85em;
  color: #999999;
  text-align: right;
  margin-top: auto;
}

.page-tin-tuc__card-date--dark {
  color: #aaaaaa;
}

.page-tin-tuc__button-container {
  text-align: center;
  margin-top: 20px;
}

.page-tin-tuc__category-card {
  background-color: var(--card-bg);
  color: var(--text-light);
  border: 1px solid var(--border-gold);
}

.page-tin-tuc__category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-tin-tuc__category-card .page-tin-tuc__card-image {
  height: 180px;
}

.page-tin-tuc__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-tin-tuc__feature-item {
  text-align: center;
  padding: 30px;
  background-color: #f9f9f9;
  color: #333333;
}

.page-tin-tuc__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-tin-tuc__feature-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.page-tin-tuc__feature-description {
  font-size: 1em;
  color: #666666;
}

.page-tin-tuc__cta-content {
  text-align: center;
  padding: 60px 20px;
}

.page-tin-tuc__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-tin-tuc__faq-list {
  margin-top: 40px;
}

.page-tin-tuc__faq-item {
  margin-bottom: 15px;
  border: 1px solid #e0e0e0;
  background-color: #f9f9f9;
  color: #333333;
  border-radius: 8px;
  overflow: hidden;
}

.page-tin-tuc__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.15em;
  font-weight: 600;
  cursor: pointer;
  background-color: #f0f0f0;
  color: var(--primary-color);
  transition: background-color 0.3s ease;
  list-style: none;
}

.page-tin-tuc__faq-question::-webkit-details-marker {
  display: none;
}

.page-tin-tuc__faq-question:hover {
  background-color: #e5e5e5;
}

.page-tin-tuc__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  color: var(--primary-color);
  pointer-events: none;
}

.page-tin-tuc__faq-item[open] .page-tin-tuc__faq-toggle {
  content: '−';
}

.page-tin-tuc__faq-answer {
  padding: 15px 25px;
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
  border-top: 1px solid #e0e0e0;
}

.page-tin-tuc__faq-answer p {
  margin: 0;
}

/* General image styling for content area */
.page-tin-tuc img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-tin-tuc__container {
    padding: 30px 15px;
  }

  .page-tin-tuc__hero-image-wrapper {
    height: 450px;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(1.8em, 4vw, 2.8em);
  }

  .page-tin-tuc__hero-description {
    font-size: clamp(0.9em, 1.8vw, 1.1em);
  }

  .page-tin-tuc__news-grid,
  .page-tin-tuc__article-grid,
  .page-tin-tuc__category-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }

  .page-tin-tuc__card-image {
    height: 180px;
  }

  .page-tin-tuc__card-title {
    font-size: 1.2em;
  }

  .page-tin-tuc__feature-item {
    padding: 25px;
  }
}

@media (max-width: 768px) {
  .page-tin-tuc {
    font-size: 15px;
  }

  .page-tin-tuc__container {
    padding: 20px 15px !important; /* Mobile padding for containers */
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* HERO 主图区域 */
  .page-tin-tuc__hero-section {
    padding-top: 10px !important;
  }

  .page-tin-tuc__hero-image-wrapper {
    height: 300px !important;
  }

  .page-tin-tuc__hero-content {
    padding: 30px 15px !important;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(1.6em, 6vw, 2.2em) !important;
    margin-bottom: 15px !important;
  }

  .page-tin-tuc__hero-description {
    font-size: 1em !important;
    margin-bottom: 25px !important;
  }

  .page-tin-tuc__hero-buttons {
    flex-direction: column !important;
    gap: 15px !important;
  }

  /* 深色导语区 (if any, hero content serves this role here) */
  .page-tin-tuc__section-description {
    font-size: 1em !important;
    margin-bottom: 30px !important;
  }

  /* 博客网格 (Latest News & Featured Articles) */
  .page-tin-tuc__news-grid,
  .page-tin-tuc__article-grid,
  .page-tin-tuc__category-grid {
    grid-template-columns: 1fr !important; /* Single column */
    gap: 20px !important;
    overflow-x: hidden !important;
  }

  .page-tin-tuc__card-image {
    height: 200px !important;
  }

  .page-tin-tuc__card-title {
    font-size: 1.2em !important;
  }

  .page-tin-tuc__card-excerpt {
    font-size: 0.9em !important;
  }

  /* 通用图片与容器 */
  .page-tin-tuc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-tin-tuc__section,
  .page-tin-tuc__card,
  .page-tin-tuc__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  /* 按钮与按钮容器 */
  .page-tin-tuc__btn-primary,
  .page-tin-tuc__btn-secondary,
  .page-tin-tuc a[class*="button"],
  .page-tin-tuc 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 !important;
    padding-right: 15px !important;
  }

  .page-tin-tuc__cta-buttons,
  .page-tin-tuc__button-group,
  .page-tin-tuc__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    flex-wrap: wrap !important;
    gap: 10px !important;
    flex-direction: column !important; /* Ensure vertical stacking for multiple buttons */
  }

  /* FAQ 与其他模块 */
  .page-tin-tuc__faq-question {
    font-size: 1em !important;
    padding: 15px 20px !important;
  }

  .page-tin-tuc__faq-answer {
    padding: 10px 20px !important;
    font-size: 0.95em !important;
  }

  .page-tin-tuc__feature-item {
    padding: 20px !important;
  }

  .page-tin-tuc__feature-title {
    font-size: 1.3em !important;
  }

  .page-tin-tuc__cta-content {
    padding: 40px 15px !important;
  }
}

@media (max-width: 549px) {
  .page-tin-tuc__news-grid,
  .page-tin-tuc__article-grid,
  .page-tin-tuc__category-grid {
    grid-template-columns: 1fr !important; /* Single column for smaller mobiles */
  }
}