.page-news {
  --hero-min-height: 420px;
  --card-radius: 12px;
  --strip-height: 52px;
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  color: var(--color-text);
  background-color: var(--color-primary);
  font-family: var(--font-body);
  line-height: 1.6;
}

/* ── 进度条 ── */
.page-news .progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;
  width: 0%;
  height: 4px;
  background: var(--gradient-orange);
  transition: width 0.15s ease-out;
  pointer-events: none;
}

/* ── 面包屑 ── */
.page-news__breadcrumb {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.page-news__breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.page-news__breadcrumb a:hover,
.page-news__breadcrumb a:focus {
  color: var(--color-secondary);
}
.page-news__breadcrumb-sep {
  color: var(--color-text-muted);
  opacity: 0.5;
}
.page-news__breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* ── 英雄区 ── */
.page-news__hero {
  position: relative;
  min-height: var(--hero-min-height);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 2rem 1.5rem 2.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  overflow: hidden;
}
.page-news__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}
.page-news__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}
.page-news__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(95deg, rgba(10,31,63,0.92) 40%, rgba(10,31,63,0.5) 80%, rgba(10,31,63,0.2) 100%);
}
.page-news__hero-slash {
  position: absolute;
  right: -8%;
  top: -10%;
  width: 45%;
  height: 140%;
  background: var(--gradient-orange);
  clip-path: polygon(100% 0, 100% 100%, 30% 100%, 0 0);
  opacity: 0.18;
  transform: skewX(-6deg);
  pointer-events: none;
}
.page-news__hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.page-news__hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 12vw, 5.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin: 0 0 0.5rem;
  text-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.page-news__hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.35rem);
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
  letter-spacing: 0.04em;
  font-weight: 400;
}
.page-news__hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}
.page-news__stat-item {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}
.page-news__stat-num {
  font-family: var(--font-number);
  font-size: 1.8rem;
  color: var(--color-secondary);
  line-height: 1;
}

/* ── 内容目录 ── */
.page-news__categories {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.page-news__categories-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.page-news__section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  color: var(--color-text);
  margin: 0;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
}
.page-news__section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--gradient-orange);
  margin-top: 8px;
  border-radius: 2px;
}
.page-news__category-strip {
  display: flex;
  gap: 0.6rem;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-secondary) transparent;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
  flex-wrap: nowrap;
}
.page-news__category-strip::-webkit-scrollbar {
  height: 4px;
}
.page-news__category-strip::-webkit-scrollbar-thumb {
  background: var(--color-secondary);
  border-radius: 4px;
}
.page-news__cat-btn {
  flex-shrink: 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border: 2px solid rgba(255,255,255,0.15);
  border-radius: 40px;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.page-news__cat-btn:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}
.page-news__cat-btn[data-active] {
  background: var(--gradient-orange);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(255,107,53,0.35);
}
.page-news__category-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-news__cat-img {
  width: 100%;
  max-width: 400px;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--card-radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  display: block;
}

/* ── 最新文章 ── */
.page-news__articles {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
}
.page-news__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

/* ── 文章卡片 ── */
.page-news__card {
  background: var(--color-card);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.04);
}
.page-news__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
  border-color: rgba(255,107,53,0.25);
}
.page-news__card-img-wrap {
  width: 100%;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--color-primary);
}
.page-news__card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.page-news__card:hover .page-news__card-img {
  transform: scale(1.04);
}
.page-news__card-body {
  padding: 1.2rem 1.2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.page-news__card-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.8rem;
  border-radius: 30px;
  align-self: flex-start;
  color: #fff;
  background: var(--color-secondary);
}
.page-news__tag--updates {
  background: #e85d3a;
}
.page-news__tag--guide {
  background: #2a7faa;
}
.page-news__tag--data {
  background: #d48c2c;
}
.page-news__tag--brand {
  background: #6b4c9a;
}
.page-news__card-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  line-height: 1.3;
  color: var(--color-text);
  margin: 0;
  transition: color 0.2s;
}
.page-news__card:hover .page-news__card-title {
  color: var(--color-secondary);
}
.page-news__card-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: -webkit-line-clamp 0.3s ease;
}
.page-news__card:hover .page-news__card-excerpt {
  -webkit-line-clamp: 6;
}
.page-news__card-link {
  color: var(--color-secondary);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}
.page-news__card-link:hover {
  text-decoration: underline;
}
.page-news__card-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  letter-spacing: 0.04em;
  font-weight: 500;
  margin-top: auto;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* ── 宽卡片（跨列） ── */
.page-news__card--wide {
  grid-column: 1 / -1;
}

/* ── 档案笔记 ── */
.page-news__archive {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 3.5rem;
}
.page-news__archive-inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
  background: var(--color-card);
  border-radius: var(--card-radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.04);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.page-news__archive-visual {
  width: 100%;
  overflow: hidden;
}
.page-news__archive-img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}
.page-news__archive-text {
  padding: 0 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.page-news__archive-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}
.page-news__archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.page-news__archive-btn {
  text-decoration: none;
}
.page-news__archive-btn--outline {
  background: transparent;
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
}
.page-news__archive-btn--outline:hover {
  background: var(--gradient-orange);
  color: #fff;
  border-color: transparent;
}

/* ── 桌面端 (≥768px) ── */
@media (min-width: 768px) {
  .page-news__hero {
    padding: 3rem 2.5rem 4rem;
    min-height: 480px;
  }
  .page-news__hero-title {
    font-size: clamp(3.6rem, 8vw, 6rem);
  }
  .page-news__hero-stats {
    gap: 3rem;
  }
  .page-news__categories {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    padding: 3rem 2.5rem 2.5rem;
  }
  .page-news__categories-header {
    flex: 1;
    max-width: 55%;
  }
  .page-news__category-strip {
    flex-wrap: wrap;
    overflow-x: visible;
  }
  .page-news__category-visual {
    flex-shrink: 0;
    margin-left: 2rem;
  }
  .page-news__cat-img {
    max-width: 340px;
  }
  .page-news__grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
  }
  .page-news__card--wide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-column: 1 / -1;
  }
  .page-news__card--wide .page-news__card-img-wrap {
    aspect-ratio: auto;
    height: 100%;
  }
  .page-news__card--wide .page-news__card-body {
    padding: 1.5rem 1.8rem;
  }
  .page-news__card--wide .page-news__card-title {
    font-size: 1.3rem;
  }
  .page-news__archive-inner {
    flex-direction: row;
    align-items: stretch;
  }
  .page-news__archive-visual {
    flex: 0 0 45%;
  }
  .page-news__archive-img {
    height: 100%;
    aspect-ratio: auto;
    object-fit: cover;
  }
  .page-news__archive-text {
    flex: 1;
    padding: 2rem 2.5rem;
    justify-content: center;
  }
  .page-news__archive-desc {
    font-size: 1rem;
  }
}

/* ── 大桌面端 (≥1024px) ── */
@media (min-width: 1024px) {
  .page-news__hero {
    padding: 4rem 3rem 5rem;
    min-height: 540px;
  }
  .page-news__categories {
    padding: 4rem 3rem 3rem;
  }
  .page-news__articles {
    padding: 1.5rem 3rem 4rem;
  }
  .page-news__grid {
    gap: 2rem;
  }
  .page-news__archive {
    padding: 2.5rem 3rem 4rem;
  }
  .page-news__archive-text {
    padding: 2.5rem 3rem;
  }
  .page-news__card-title {
    font-size: 1.2rem;
  }
  .page-news__card-excerpt {
    font-size: 0.9rem;
  }
}

/* ── 超宽屏 (≥1400px) ── */
@media (min-width: 1400px) {
  .page-news__hero {
    padding: 5rem 0 6rem;
  }
  .page-news__categories {
    padding: 4rem 0 3rem;
  }
  .page-news__articles {
    padding: 2rem 0 4rem;
  }
  .page-news__archive {
    padding: 3rem 0 5rem;
  }
  .page-news__breadcrumb {
    padding: 1rem 0 0;
  }
}