.page-news {
  --news-radius-xl: 28px;
  --news-gap-vertical: clamp(48px, 8vw, 96px);
  background: var(--color-snow);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.8;
  padding: clamp(24px, 4vw, 48px) clamp(16px, 3vw, 40px) 0;
  overflow-x: hidden;
}

/* 面包屑 */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-gray);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .breadcrumb a {
  color: var(--color-highland-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.page-news .breadcrumb a:hover {
  border-color: var(--color-gold);
}

.page-news .breadcrumb__sep {
  color: var(--color-line);
}

/* Hero 区 */
.page-news .news-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px);
  background: linear-gradient(135deg, #172f4d 0%, var(--color-deep-teal) 100%);
  border-radius: var(--radius-lg);
  color: #ffffff;
  overflow: hidden;
}

.page-news .news-hero::before,
.page-news .news-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.page-news .news-hero::before {
  width: 180px;
  height: 180px;
  right: -40px;
  top: -40px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.35) 0%, transparent 70%);
}

.page-news .news-hero::after {
  width: 260px;
  height: 260px;
  left: -80px;
  bottom: -120px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-news .news-hero__eyebrow {
  font-size: 12px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 16px;
}

.page-news .news-hero h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  margin: 0 0 8px;
}

.page-news .news-hero__subtitle {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 20px;
  letter-spacing: 0.15em;
}

.page-news .news-hero__desc {
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
}

/* 正文主体 */
.page-news .news-body {
  display: flex;
  flex-direction: column;
  gap: var(--news-gap-vertical);
  padding-top: clamp(40px, 6vw, 72px);
}

/* 章节标题 */
.page-news .section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.page-news .section-heading h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.3;
  margin: 0;
  color: var(--color-highland-blue);
}

.page-news .section-heading__hint {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--color-gray);
  writing-mode: vertical-rl;
}

/* 最新公告特稿卡片 */
.page-news .feature-card {
  display: grid;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition);
}

.page-news .feature-card:hover {
  box-shadow: 0 12px 40px rgba(30, 58, 95, 0.12);
}

.page-news .feature-card__media {
  background: var(--color-snow);
}

.page-news .feature-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .feature-card__body {
  padding: clamp(24px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.page-news .feature-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-news .feature-card__date {
  font-size: 13px;
  color: var(--color-gray);
  letter-spacing: 0.1em;
}

.page-news .feature-card h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.4;
  margin: 0;
  color: var(--color-ink);
}

.page-news .feature-card p {
  font-size: 15px;
  line-height: 1.8;
  color: #4a5568;
  margin: 0;
}

.page-news .feature-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

/* 搜索框 */
.page-news .search-box {
  display: flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 6px 6px 6px 18px;
  margin-bottom: 28px;
  box-shadow: 0 2px 12px rgba(30, 58, 95, 0.04);
}

.page-news .search-box input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-ink);
}

.page-news .search-box input::placeholder {
  color: var(--color-gray);
}

.page-news .search-box button {
  flex-shrink: 0;
  border: none;
  background: var(--color-highland-blue);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--transition);
}

.page-news .search-box button:hover {
  background: var(--color-deep-teal);
}

/* 分类筛选 */
.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.page-news .filter-btn {
  appearance: none;
  border: 1px solid var(--color-line);
  background: #ffffff;
  color: var(--color-highland-blue);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.page-news .filter-btn:hover,
.page-news .filter-btn.is-active {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: #ffffff;
}

.page-news .filter-btn:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

/* 文章网格 */
.page-news .article-grid {
  display: grid;
  gap: 20px;
}

.page-news .article-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.page-news .article-card:hover,
.page-news .article-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.page-news .article-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  line-height: 1.45;
  margin: 0;
}

.page-news .article-card h3 a {
  color: var(--color-ink);
  text-decoration: none;
}

.page-news .article-card h3 a:hover {
  color: var(--color-highland-blue);
}

.page-news .article-card p {
  font-size: 14px;
  line-height: 1.75;
  color: #5a6572;
  margin: 0;
  flex-grow: 1;
}

.page-news .article-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-highland-blue);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.page-news .article-card__link:hover {
  border-color: var(--color-gold);
}

/* 产品线变更专题 */
.page-news .news-feature {
  display: grid;
  gap: 24px;
  background: linear-gradient(120deg, #f0f4f9, #ffffff);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3vw, 40px);
}

.page-news .news-feature .media-frame {
  margin: 0;
}

.page-news .news-feature__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-news .news-feature__lead {
  font-size: 15px;
  line-height: 1.8;
  color: #4a5568;
  margin: 0 0 20px;
}

.page-news .topic-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-news .topic-list li {
  position: relative;
  padding-left: 28px;
}

.page-news .topic-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 18px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 2px;
}

.page-news .topic-list a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}

.page-news .topic-list a:hover {
  color: var(--color-highland-blue);
  border-color: var(--color-gold);
}

/* 订阅指引专题 */
.page-news .news-section--narrow {
  max-width: 1080px;
}

.page-news .guide-wrap {
  display: grid;
  gap: 24px;
}

.page-news .guide-media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-news .guide-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .guide-lead {
  font-size: 15px;
  line-height: 1.8;
  color: #4a5568;
  margin: 0 0 20px;
}

.page-news .subscription-grid {
  display: grid;
  gap: 20px;
}

.page-news .sub-card {
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.page-news .sub-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.page-news .sub-card__index {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.12);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  margin-bottom: 12px;
}

.page-news .sub-card h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  margin: 0 0 8px;
}

.page-news .sub-card p {
  font-size: 14px;
  line-height: 1.75;
  color: #5a6572;
  margin: 0;
}

/* 底部横幅 */
.page-news .news-footer-banner {
  margin-top: clamp(48px, 8vw, 96px);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-news .news-footer-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 平板及以上 */
@media (min-width: 768px) {
  .page-news .feature-card {
    grid-template-columns: 1.1fr 1fr;
  }

  .page-news .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-news .news-feature {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }

  .page-news .guide-wrap {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: center;
  }

  .page-news .subscription-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 桌面端 */
@media (min-width: 1024px) {
  .page-news .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .news-hero {
    padding: clamp(36px, 5vw, 64px);
  }
}