.page-news {
  --color-hero-bg-start: #0A1F44;
  --color-hero-bg-end: #1A3A6B;
  --color-accent-soft: #F26C23;
  --color-accent-hover: #e05d1a;
  --color-tag-update: #3D7B99;
  --color-tag-guide: #F26C23;
  --color-tag-community: #0A1F44;
  --color-card-bg: #FFFFFF;
  --color-card-shadow: rgba(10, 31, 68, 0.08);
  --color-section-alt-bg: #F0F3F7;
  --stripe-deco: linear-gradient(135deg, var(--color-accent-soft) 0%, transparent 60%);
  --card-radius: 20px;
  --card-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Hero 区域 */
.page-news__hero {
  background: linear-gradient(135deg, var(--color-hero-bg-start), var(--color-hero-bg-end));
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-news__hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 60%;
  height: 120%;
  background: var(--stripe-deco);
  transform: skewX(-12deg);
  opacity: 0.15;
  pointer-events: none;
}

.page-news__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 1.2rem;
  position: relative;
  z-index: 1;
}

.page-news__breadcrumb a {
  color: var(--color-accent-soft);
  text-decoration: none;
  transition: color var(--transition-speed);
}

.page-news__breadcrumb a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.page-news__breadcrumb-sep {
  color: rgba(255, 255, 255, 0.35);
}

.page-news__hero-title {
  font-family: var(--font-headline);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-white);
  margin: 0 0 0.6rem;
  line-height: 1.15;
  position: relative;
  z-index: 1;
  letter-spacing: -0.01em;
}

.page-news__hero-desc {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 1.8rem;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

.page-news__hero-stripe {
  height: 5px;
  width: 80px;
  background: var(--color-accent-soft);
  border-radius: 4px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* 筛选标签 */
.page-news__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 1.5rem 1.5rem 0;
  justify-content: center;
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.page-news__filter-btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 1.2rem;
  border: 2px solid transparent;
  border-radius: 40px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-speed);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.page-news__filter-btn:hover {
  background: var(--color-white);
  box-shadow: 0 2px 10px rgba(10, 31, 68, 0.08);
}

.page-news__filter-btn.is-active {
  background: var(--color-accent-soft);
  color: var(--color-white);
  border-color: var(--color-accent-soft);
  box-shadow: 0 4px 14px rgba(242, 108, 35, 0.25);
}

/* 区块通用 */
.page-news__section {
  padding: 3rem 0 2rem;
}

.page-news__section--alt {
  background: var(--color-section-alt-bg);
}

.page-news__section-heading {
  font-family: var(--font-headline);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 0.25rem;
  line-height: 1.25;
}

.page-news__section-sub {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-secondary);
  margin: 0 0 2rem;
  line-height: 1.5;
}

/* 网格布局 */
.page-news__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* 卡片 */
.page-news__card {
  background: var(--color-card-bg);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: 0 2px 12px var(--color-card-shadow);
  transition: transform var(--card-transition), box-shadow var(--card-transition);
  display: flex;
  flex-direction: column;
}

.page-news__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(10, 31, 68, 0.12);
}

.page-news__card-img {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.page-news__card-img img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.page-news__card-img--compact img {
  max-height: 200px;
  object-fit: cover;
}

.page-news__card-body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.page-news__card-body--full {
  padding: 1.5rem 1.25rem;
}

.page-news__tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.25rem 0.7rem;
  border-radius: 40px;
  margin-bottom: 0.6rem;
  align-self: flex-start;
  background: var(--color-tag-update);
  color: var(--color-white);
}

.page-news__tag--update {
  background: var(--color-tag-update);
}

.page-news__tag--guide {
  background: var(--color-tag-guide);
}

.page-news__tag--community {
  background: var(--color-tag-community);
}

.page-news__card-title {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.page-news__card-summary {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: #555;
  line-height: 1.55;
  margin: 0 0 1rem;
  flex: 1;
}

.page-news__card-link {
  align-self: flex-start;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1.2rem;
  border-radius: 40px;
  background: var(--color-accent-soft);
  color: var(--color-white);
  text-decoration: none;
  transition: background var(--transition-speed), transform var(--transition-speed);
  border: none;
  display: inline-block;
}

.page-news__card-link:hover {
  background: var(--color-accent-hover);
  transform: scale(1.04);
}

/* 响应式 */
@media (max-width: 480px) {
  .page-news__hero-title {
    font-size: 2rem;
  }
  .page-news__hero-desc {
    font-size: 0.9rem;
  }
  .page-news__filters {
    padding: 1rem 1rem 0;
    gap: 0.35rem;
  }
  .page-news__filter-btn {
    font-size: 0.8rem;
    padding: 0.4rem 0.9rem;
  }
  .page-news__section {
    padding: 2rem 0 1.5rem;
  }
  .page-news__section-heading {
    font-size: 1.5rem;
  }
  .page-news__card-body {
    padding: 1rem 1rem 1.25rem;
  }
  .page-news__card-title {
    font-size: 1.1rem;
  }
}

@media (min-width: 640px) {
  .page-news__hero {
    padding: 3rem 2rem 4rem;
  }
  .page-news__hero-title {
    font-size: 3.2rem;
  }
  .page-news__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news__card--community .page-news__card-img--compact img {
    max-height: 180px;
  }
}

@media (min-width: 960px) {
  .page-news__hero {
    padding: 4rem 2rem 5rem;
  }
  .page-news__hero-title {
    font-size: 4rem;
  }
  .page-news__hero-desc {
    font-size: 1.15rem;
  }
  .page-news__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news__filters {
    padding: 2rem 2rem 0;
    gap: 0.75rem;
  }
  .page-news__section {
    padding: 4rem 0 3rem;
  }
  .page-news__section-heading {
    font-size: 2.2rem;
  }
  .page-news__card-img--compact img {
    max-height: 160px;
  }
}

/* 横向溢出防护 */
.page-news img {
  max-width: 100%;
  height: auto;
}

/* 滚动显现兼容 reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .page-news .reveal {
    opacity: 1;
    transform: none;
  }
  .page-news__card:hover {
    transform: none;
  }
  .page-news__card:hover .page-news__card-img img {
    transform: none;
  }
  .page-news__card-link:hover {
    transform: none;
  }
}