/* ===== 文章中心专属样式 ===== */
.page-news {
  --news-gap: 32px;
  --news-card-radius: 0px;
  --news-border-thick: 4px;
}

.page-news__inner {
  padding-top: 40px;
  padding-bottom: 80px;
}

/* ---- 面包屑 ---- */
.page-news__breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: #757575;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}

.page-news__breadcrumb a {
  color: #757575;
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-news__breadcrumb a:hover,
.page-news__breadcrumb a:focus {
  color: #E03A3E;
}

.page-news__breadcrumb-sep {
  color: #BDBDBD;
  font-weight: 300;
}

/* ---- 标题区 ---- */
.page-news__hero {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 48px;
}

.page-news__hero-text {
  border-left: 4px solid #E03A3E;
  padding-left: 20px;
}

.page-news__title {
  font-family: var(--font-heading, 'Noto Sans SC', 'Helvetica Neue', sans-serif);
  font-weight: 900;
  font-size: 2.5rem;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: #121212;
  margin: 0 0 8px 0;
}

.page-news__subtitle {
  font-size: 1rem;
  color: #757575;
  letter-spacing: 0.08em;
  margin: 0;
  font-weight: 400;
}

.page-news__hero-image-wrapper {
  width: 100%;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  border: 2px solid #E0E0E0;
}

.page-news__hero-image {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 800 / 300;
}

/* ---- 两栏布局 ---- */
.page-news__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

/* ---- 区块标题 ---- */
.page-news__section-title {
  font-family: var(--font-heading, 'Noto Sans SC', 'Helvetica Neue', sans-serif);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: 0.03em;
  color: #121212;
  margin: 0 0 24px 0;
  padding-bottom: 12px;
  border-bottom: 3px solid #121212;
}

/* ---- 文章卡片 ---- */
.page-news__articles {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-news__card {
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  border: 2px solid #E0E0E0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  margin-bottom: 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  position: relative;
  cursor: default;
}

/* 左侧粗边框颜色 via data-card-border */
.page-news__card[data-card-border="brand"] {
  border-left: 6px solid #E03A3E;
}

.page-news__card[data-card-border="secondary"] {
  border-left: 6px solid #1E88E5;
}

.page-news__card[data-card-border="accent"] {
  border-left: 6px solid #FF6F00;
}

.page-news__card:hover,
.page-news__card:focus-within {
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  transform: translateY(-3px);
}

.page-news__card-img-wrapper {
  width: 100%;
  overflow: hidden;
  border-bottom: 1px solid #E0E0E0;
}

.page-news__card-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 400 / 250;
  transition: transform 0.3s ease;
}

.page-news__card:hover .page-news__card-img,
.page-news__card:focus-within .page-news__card-img {
  transform: scale(1.03);
}

.page-news__card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-news__card-title {
  font-family: var(--font-heading, 'Noto Sans SC', 'Helvetica Neue', sans-serif);
  font-weight: 900;
  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: #121212;
  margin: 0;
}

.page-news__card-meta {
  font-size: 0.8rem;
  color: #757575;
  letter-spacing: 0.05em;
  margin: 0;
}

.page-news__card-summary {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #424242;
  margin: 4px 0 8px 0;
}

.page-news__card-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border: 2px solid;
  align-self: flex-start;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-news__card-tag[data-tag-color="brand"] {
  border-color: #E03A3E;
  color: #E03A3E;
}

.page-news__card-tag[data-tag-color="secondary"] {
  border-color: #1E88E5;
  color: #1E88E5;
}

.page-news__card-tag[data-tag-color="accent"] {
  border-color: #FF6F00;
  color: #FF6F00;
}

.page-news__card-tag:hover {
  background: currentColor;
  color: #FFFFFF;
}

/* ---- 更多按钮区 ---- */
.page-news__more {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 12px;
  padding-top: 20px;
  border-top: 2px solid #E0E0E0;
}

.page-news__more-btn {
  font-family: var(--font-heading, 'Noto Sans SC', 'Helvetica Neue', sans-serif);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  padding: 12px 28px;
  border: 2px solid #121212;
  background: transparent;
  color: #121212;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
}

.page-news__more-btn[data-btn-style="primary"] {
  border-color: #E03A3E;
  color: #E03A3E;
  box-shadow: 4px 4px 0 rgba(224, 58, 62, 0.2);
}

.page-news__more-btn[data-btn-style="primary"]:hover,
.page-news__more-btn[data-btn-style="primary"]:focus {
  background: #E03A3E;
  color: #FFFFFF;
  box-shadow: 2px 2px 0 rgba(224, 58, 62, 0.3);
}

.page-news__more-btn[data-btn-style="secondary"]:hover,
.page-news__more-btn[data-btn-style="secondary"]:focus {
  background: #121212;
  color: #FFFFFF;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.2);
}

/* ---- 侧边栏：标签云 ---- */
.page-news__sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-news__tags-wrapper {
  position: relative;
  background: #FFFFFF;
  border: 2px solid #E0E0E0;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  padding: 28px 24px;
  overflow: hidden;
}

.page-news__tags-bg {
  position: absolute;
  top: -30px;
  right: -30px;
  width: 160px;
  height: auto;
  opacity: 0.20;
  pointer-events: none;
  transform: rotate(12deg);
}

.page-news__tags-title {
  border-bottom-color: #E03A3E;
  position: relative;
  z-index: 1;
}

.page-news__tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  position: relative;
  z-index: 1;
  margin-top: 8px;
}

.page-news__tag {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: 2px solid transparent;
  padding: 4px 14px;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  line-height: 1.4;
}

/* 标签大小 */
.page-news__tag[data-tag-size="xl"] { font-size: 1.4rem; }
.page-news__tag[data-tag-size="lg"] { font-size: 1.15rem; }
.page-news__tag[data-tag-size="md"] { font-size: 0.95rem; }
.page-news__tag[data-tag-size="sm"] { font-size: 0.85rem; }
.page-news__tag[data-tag-size="xs"] { font-size: 0.75rem; }

/* 标签颜色 */
.page-news__tag[data-tag-color="brand"] {
  color: #E03A3E;
  border-color: #E03A3E;
}

.page-news__tag[data-tag-color="secondary"] {
  color: #1E88E5;
  border-color: #1E88E5;
}

.page-news__tag[data-tag-color="accent"] {
  color: #FF6F00;
  border-color: #FF6F00;
}

.page-news__tag:hover,
.page-news__tag:focus {
  background: currentColor;
  color: #FFFFFF !important;
  border-color: currentColor;
}

.page-news__tags-hint {
  font-size: 0.75rem;
  color: #9E9E9E;
  margin-top: 20px;
  position: relative;
  z-index: 1;
  letter-spacing: 0.04em;
}

/* ---- 快速链接 ---- */
.page-news__quick-links {
  background: #1A1A1A;
  padding: 24px 24px;
  border: 2px solid #333;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-news__quick-title {
  font-family: var(--font-heading, 'Noto Sans SC', 'Helvetica Neue', sans-serif);
  font-weight: 900;
  font-size: 1.1rem;
  color: #FFFFFF;
  margin: 0 0 16px 0;
  letter-spacing: 0.03em;
  padding-bottom: 8px;
  border-bottom: 2px solid #E03A3E;
}

.page-news__quick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news__quick-list li {
  margin: 0;
  padding: 0;
}

.page-news__quick-list a {
  color: #BDBDBD;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  transition: color 0.2s ease, padding-left 0.2s ease;
  padding: 4px 0;
  display: inline-block;
}

.page-news__quick-list a:hover,
.page-news__quick-list a:focus {
  color: #E03A3E;
  padding-left: 6px;
}

/* ===== 响应式：平板及以上 ===== */
@media (min-width: 768px) {
  .page-news__hero {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-news__hero-text {
    flex: 0 0 auto;
    max-width: 50%;
  }

  .page-news__hero-image-wrapper {
    flex: 0 0 55%;
    max-width: 55%;
  }

  .page-news__title {
    font-size: 3rem;
  }

  .page-news__card {
    flex-direction: row;
  }

  .page-news__card-img-wrapper {
    flex: 0 0 200px;
    border-bottom: none;
    border-right: 1px solid #E0E0E0;
  }

  .page-news__card-img {
    height: 100%;
    aspect-ratio: auto;
    object-fit: cover;
  }

  .page-news__card-body {
    flex: 1;
    padding: 24px;
  }

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

  .page-news__layout {
    grid-template-columns: 1fr 320px;
    gap: 40px;
  }

  .page-news__tags-bg {
    width: 200px;
    top: -40px;
    right: -40px;
  }
}

/* ===== 桌面大屏 ===== */
@media (min-width: 992px) {
  .page-news__inner {
    padding-top: 56px;
  }

  .page-news__title {
    font-size: 3.5rem;
  }

  .page-news__card-img-wrapper {
    flex-basis: 240px;
  }

  .page-news__layout {
    grid-template-columns: 1fr 340px;
    gap: 48px;
  }

  .page-news__tags-wrapper {
    padding: 32px 28px;
  }
}