.page-tin-tuc {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #F3F8FF; /* Text Main for dark body background */
  background-color: #08162B; /* Deep Navy from body */
}

.page-tin-tuc__container {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-tin-tuc__hero-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 60px;
  text-align: center;
  background: linear-gradient(180deg, #113B7A 0%, #08162B 100%); /* Blend main color with body bg */
  color: #F3F8FF;
}

.page-tin-tuc__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #F3F8FF;
}

.page-tin-tuc__description {
  font-size: 1.15rem;
  max-width: 800px;
  margin: 0 auto 30px auto;
  color: #AFC4E8;
}

.page-tin-tuc__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.page-tin-tuc__btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-tin-tuc__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #F3F8FF;
  border: none;
}

.page-tin-tuc__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(43, 115, 246, 0.4);
}

.page-tin-tuc__btn-secondary {
  background: #10233F;
  color: #AFC4E8;
  border: 1px solid #244D84;
}

.page-tin-tuc__btn-secondary:hover {
  background: #1B3357;
  color: #F3F8FF;
  border-color: #4FA8FF;
}

.page-tin-tuc__news-grid-section {
  padding: 80px 0;
  background-color: #08162B;
}

.page-tin-tuc__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 50px;
  color: #F3F8FF;
}

.page-tin-tuc__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.page-tin-tuc__news-card {
  background-color: #10233F; /* Card BG */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  color: #F3F8FF;
}

.page-tin-tuc__news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.page-tin-tuc__card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-tin-tuc__card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-tin-tuc__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-tin-tuc__card-title a {
  color: #F3F8FF;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-tin-tuc__card-title a:hover {
  color: #4FA8FF;
}

.page-tin-tuc__card-meta {
  font-size: 0.9rem;
  color: #AFC4E8;
  margin-bottom: 15px;
}

.page-tin-tuc__card-excerpt {
  font-size: 1rem;
  color: #AFC4E8;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-tin-tuc__read-more {
  display: inline-block;
  color: #4FA8FF;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
  margin-top: auto;
}

.page-tin-tuc__read-more:hover {
  text-decoration: underline;
  color: #F2C14E;
}

.page-tin-tuc__all-news-cta {
  text-align: center;
  margin-top: 40px;
}

.page-tin-tuc__why-follow-section {
  padding: 80px 0;
  background-color: #113B7A;
  color: #F3F8FF;
}

.page-tin-tuc__content-block {
  max-width: 900px;
  margin: 0 auto;
}

.page-tin-tuc__content-block p {
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: #AFC4E8;
}

.page-tin-tuc__content-block h3 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 15px;
  color: #F3F8FF;
}

.page-tin-tuc__figure {
  margin: 30px 0;
  text-align: center;
}

.page-tin-tuc__figure-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: block;
  margin: 0 auto;
}

.page-tin-tuc__figure-caption {
  font-size: 0.9rem;
  color: #AFC4E8;
  margin-top: 10px;
}

.page-tin-tuc__promo-box {
  background-color: #10233F; /* Card BG */
  border: 1px solid #244D84;
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  margin-top: 50px;
}

.page-tin-tuc__promo-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #F2C14E; /* Gold */
}

.page-tin-tuc__promo-text {
  font-size: 1.1rem;
  margin-bottom: 25px;
  color: #AFC4E8;
}

.page-tin-tuc__related-topics-section {
  padding: 80px 0;
  background-color: #08162B;
}

.page-tin-tuc__related-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 800px;
}

.page-tin-tuc__related-list li {
  margin-bottom: 15px;
  font-size: 1.1rem;
  border-bottom: 1px solid #1B3357; /* Divider */
  padding-bottom: 15px;
}

.page-tin-tuc__related-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-tin-tuc__related-list a {
  color: #AFC4E8;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-tin-tuc__related-list a:hover {
  color: #4FA8FF;
  text-decoration: underline;
}

/* --- Responsive Styles --- */

@media (max-width: 1024px) {
  .page-tin-tuc__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .page-tin-tuc__description {
    font-size: 1rem;
  }

  .page-tin-tuc__section-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }

  .page-tin-tuc__card-image {
    height: 220px;
  }

  .page-tin-tuc__card-title {
    font-size: 1.3rem;
  }

  .page-tin-tuc__content-block h3 {
    font-size: 1.6rem;
  }

  .page-tin-tuc__promo-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-tin-tuc__hero-section {
    padding-top: 10px !important; /* Rely on body for header offset, use small internal padding */
    padding-bottom: 40px;
  }

  .page-tin-tuc__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    margin-bottom: 15px;
  }

  .page-tin-tuc__description {
    font-size: 0.95rem;
    margin-bottom: 20px;
    padding: 0 15px;
  }

  .page-tin-tuc__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-tin-tuc__btn {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
  }

  /* 2. 单栏长文容器 */
  .page-tin-tuc__container {
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-tin-tuc__news-grid-section,
  .page-tin-tuc__why-follow-section,
  .page-tin-tuc__related-topics-section {
    padding: 40px 0;
  }

  .page-tin-tuc__section-title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    margin-bottom: 30px;
    padding: 0 10px;
  }

  .page-tin-tuc__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-tin-tuc__news-card {
    margin: 0 auto;
    max-width: 400px; /* Constrain single card width on mobile */
  }

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

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

  .page-tin-tuc__card-excerpt {
    font-size: 0.95rem;
  }

  .page-tin-tuc__content-block {
    padding: 0 10px;
  }

  .page-tin-tuc__content-block p {
    font-size: 1rem;
  }

  .page-tin-tuc__content-block h3 {
    font-size: 1.4rem;
    margin-top: 30px;
    margin-bottom: 10px;
  }

  /* 3. 通用图片与 figure */
  .page-tin-tuc img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }

  .page-tin-tuc__figure-image {
    width: 100% !important;
    height: auto !important;
  }

  /* 4. 按钮与按钮容器 (already covered in top section, but re-emphasize general buttons) */
  .page-tin-tuc__all-news-cta .page-tin-tuc__btn-primary {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-tin-tuc__promo-box .page-tin-tuc__btn-primary {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .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;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  /* 5. 注册教程与 FAQ 区块 (N/A for FAQ, but general text blocks) */
  .page-tin-tuc__promo-box {
    padding: 25px 15px;
    margin: 30px 15px 0 15px;
  }

  .page-tin-tuc__promo-title {
    font-size: 1.5rem;
  }

  .page-tin-tuc__promo-text {
    font-size: 1rem;
  }

  .page-tin-tuc__related-list {
    padding: 0 15px;
  }

  .page-tin-tuc__related-list li {
    font-size: 1rem;
  }
}