.page-news {
  --main-color: #113B7A;
  --auxiliary-color: #1D5FD1;
  --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  --card-bg: #10233F;
  --text-main: #F3F8FF;
  --text-secondary: #AFC4E8;
  --border-color: #244D84;
  --glow-color: #4FA8FF;
  --gold: #F2C14E;
  --divider-color: #1B3357;
  --deep-navy-color: #08162B;

  font-family: 'Arial', sans-serif;
  color: var(--text-main);
  background-color: var(--deep-navy-color);
}

.page-news__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 15px;
  box-sizing: border-box;
}

.page-news__section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--gold);
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-news__section-title--light {
  color: var(--text-main);
}

.page-news__section-description {
  font-size: 18px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.page-news__section-description--light {
  color: var(--text-main);
}

.page-news__btn-primary,
.page-news__btn-secondary,
.page-news a[class*="button"],
.page-news a[class*="btn"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 30px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-news__btn-primary {
  background: var(--button-gradient);
  color: #ffffff;
  border: none;
}

.page-news__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(43, 115, 246, 0.4);
}

.page-news__btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--border-color);
}

.page-news__btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(29, 95, 209, 0.2);
}

.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-news__hero-section {
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  background-color: var(--deep-navy-color);
  position: relative;
  overflow: hidden;
  padding-bottom: 40px;
}

.page-news__hero-content-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-news__hero-image {
  width: 100%;
  margin-bottom: 30px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
}

.page-news__hero-image img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16/9;
}

.page-news__hero-text {
  text-align: center;
  max-width: 900px;
}

.page-news__main-title {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 800;
  color: var(--gold);
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-news__subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.6;
}

.page-news__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-news__latest-articles-section {
  padding: 60px 0;
  background-color: var(--deep-navy-color);
}

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

.page-news__article-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  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, 0.5);
}

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

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

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

.page-news__article-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-news__article-meta {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.page-news__article-excerpt {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.page-news__read-more {
  display: inline-block;
  color: var(--gold);
  font-weight: 600;
  text-decoration: none;
}

.page-news__read-more:hover {
  text-decoration: underline;
}

.page-news__view-all-button-container {
  text-align: center;
  margin-top: 40px;
}

.page-news__about-news-section {
  padding: 60px 0;
  background-color: var(--deep-navy-color);
}

.page-news__dark-section {
  background-color: var(--main-color);
  padding: 40px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.page-news__content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-top: 40px;
}

.page-news__content-block {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-news__content-subtitle {
  font-size: 24px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-news__content-block p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.page-news__content-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-top: auto;
}

.page-news__achievements-section {
  padding: 60px 0;
  background-color: var(--deep-navy-color);
}

.page-news__achievements-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 40px;
}

.page-news__achievement-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.page-news__achievement-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin: 0 auto 20px auto;
}

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

.page-news__achievement-text {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.page-news__cta-section {
  padding: 60px 0;
  background-color: var(--main-color);
  text-align: center;
}

.page-news__cta-section .page-news__section-title {
  color: var(--gold);
}

.page-news__cta-section .page-news__section-description {
  color: var(--text-main);
}

.page-news__cta-section .page-news__cta-buttons {
  margin-top: 30px;
}

.page-news__faq-section {
  padding: 60px 0;
  background-color: var(--deep-navy-color);
}

details.page-news__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}
details.page-news__faq-item summary.page-news__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--text-main);
}
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: rgba(255, 255, 255, 0.08);
}
.page-news__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
}
.page-news__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--gold);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}
details.page-news__faq-item .page-news__faq-answer {
  padding: 0 25px 25px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 0 0 8px 8px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .page-news__articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news__content-grid {
    grid-template-columns: 1fr;
  }
  .page-news__achievements-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* 1. HERO 主图区域 */
  .page-news__hero-section {
    padding-top: 10px;
    padding-bottom: 30px;
  }
  .page-news__hero-content-wrapper {
    padding: 0 15px;
  }
  .page-news__hero-image {
    margin-bottom: 20px;
  }
  .page-news__hero-image img {
    object-fit: contain !important;
    aspect-ratio: unset !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-news__main-title {
    font-size: clamp(28px, 8vw, 38px);
    margin-bottom: 10px;
  }
  .page-news__subtitle {
    font-size: 16px;
    margin-bottom: 20px;
  }
  .page-news__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }
  .page-news__btn-primary,
  .page-news__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 15px;
  }

  /* 2. 产品展示图区域 (General article grid for news page) */
  .page-news__articles-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-news__article-image {
    height: 180px;
  }
  .page-news__article-title {
    font-size: 18px;
    -webkit-line-clamp: 3;
  }
  .page-news__article-excerpt {
    font-size: 14px;
    -webkit-line-clamp: 4;
  }
  .page-news__latest-articles-section .page-news__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
  }

  /* 3. 装饰主标题 + 长文 SEO 区 (About News & Achievements Sections) */
  .page-news__section-title {
    font-size: 28px;
    margin-bottom: 15px;
  }
  .page-news__section-description {
    font-size: 16px;
    margin-bottom: 30px;
    padding: 0 15px;
  }
  .page-news__content-grid,
  .page-news__achievements-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .page-news__content-block,
  .page-news__achievement-item {
    padding: 25px;
  }
  .page-news__content-subtitle {
    font-size: 20px;
  }
  .page-news__content-block p,
  .page-news__achievement-text {
    font-size: 15px;
  }

  /* 4. 通用图片与容器 */
  .page-news img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-news__container,
  .page-news__hero-content-wrapper,
  .page-news__articles-grid,
  .page-news__content-grid,
  .page-news__achievements-grid,
  .page-news__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow-x: hidden;
  }

  /* 5. 按钮与按钮容器 */
  .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;
  }
  .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: 15px;
  }
  .page-news__cta-buttons {
    display: flex;
    flex-direction: column;
  }

  /* FAQ section mobile */
  details.page-news__faq-item summary.page-news__faq-question { padding: 15px; }
  .page-news__faq-qtext { font-size: 16px; }
  .page-news__faq-toggle { font-size: 24px; width: 24px; }
  details.page-news__faq-item .page-news__faq-answer {
    padding: 0 15px 15px;
    font-size: 15px;
  }
}