/* ===== 行业观察页专属样式 ===== */
.page-news {
  position: relative;
  background:
    radial-gradient(ellipse at 85% 12%, rgba(0, 255, 136, 0.07), transparent 55%),
    radial-gradient(ellipse at 8% 30%, rgba(30, 58, 95, 0.55), transparent 60%),
    var(--color-night-deep);
  color: var(--color-cloud);
  overflow: hidden;
  padding: 2.5rem 0 6rem;
}

.page-news .breadcrumb {
  margin-bottom: 2.5rem;
  font-size: 0.875rem;
  opacity: 0.8;
}

.page-news .news-hero {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  border-bottom: 1px solid var(--color-glass);
  padding-bottom: 2.25rem;
  margin-bottom: 3.5rem;
}

.page-news .news-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0.25rem 0 0.5rem;
  color: var(--color-cloud);
}

.page-news .news-hero__desc {
  max-width: 560px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-silver);
  margin: 0;
}

.page-news .news-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-news .section-head {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 2.25rem;
}

.page-news .section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.2;
  margin: 0;
  color: var(--color-cloud);
}

.page-news .section-head__note {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-silver);
}

.page-news .tag {
  display: inline-block;
  background: rgba(0, 255, 136, 0.1);
  color: var(--color-accent);
  border: 1px solid rgba(0, 255, 136, 0.3);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
  transition: background var(--transition), border-color var(--transition);
}

.page-news .tag--pop {
  background: rgba(255, 122, 0, 0.12);
  color: var(--color-pop);
  border-color: rgba(255, 122, 0, 0.35);
}

.page-news .news-tabs .tag {
  padding: 0.45rem 1rem;
  color: var(--color-cloud);
  border-color: var(--color-glass);
  text-decoration: none;
}

.page-news .news-tabs .tag:hover,
.page-news .news-tabs .tag:focus-visible {
  border-color: var(--color-accent);
  background: rgba(0, 255, 136, 0.12);
  color: var(--color-accent);
}

.page-news .news-tabs .tag--pop {
  color: var(--color-pop);
  border-color: rgba(255, 122, 0, 0.4);
}

.page-news .news-tabs .tag--pop:hover,
.page-news .news-tabs .tag--pop:focus-visible {
  border-color: var(--color-pop);
  color: var(--color-pop);
}

.page-news .news-latest,
.page-news .news-changelog,
.page-news .news-data,
.page-news .news-tips {
  scroll-margin-top: 2rem;
}

/* 首条突出文章 */
.page-news .featured-card {
  position: relative;
  margin-bottom: 3.5rem;
}

.page-news .featured-card__media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-steel);
}

.page-news .featured-card__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .featured-card__body {
  position: relative;
  background: linear-gradient(145deg, var(--color-night), var(--color-steel));
  border: 1px solid var(--color-glass);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: -3rem 1rem 0;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.page-news .featured-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.page-news .featured-card__time,
.page-news .article-card__time,
.page-news .timeline-item__period {
  font-size: 0.8125rem;
  color: var(--color-accent);
}

.page-news .featured-card h3 {
  font-size: 1.4rem;
  line-height: 1.3;
  margin: 0 0 0.75rem;
  color: var(--color-cloud);
}

.page-news .featured-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-silver);
  margin: 0 0 1.25rem;
}

/* 文章卡片网格 */
.page-news .article-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-news .article-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-glass);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition);
}

.page-news .article-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 136, 0.35);
}

.page-news .article-card__media {
  overflow: hidden;
}

.page-news .article-card__media img,
.page-news .tip-card__media img,
.page-news .data-layout__visual img,
.page-news .changelog-visual__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .article-card__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.page-news .article-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.page-news .article-card h3 {
  font-size: 1.125rem;
  line-height: 1.4;
  margin: 0 0 0.6rem;
  color: var(--color-cloud);
}

.page-news .article-card p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-silver);
  margin: 0 0 1rem;
  flex: 1;
}

.page-news .article-card__link {
  display: inline-block;
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  transition: color var(--transition);
}

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

/* 更新日志 */
.page-news .changelog-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.page-news .changelog-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding-left: 1.5rem;
}

.page-news .changelog-timeline::before {
  content: "";
  position: absolute;
  left: 0.35rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), transparent 80%);
}

.page-news .timeline-item {
  position: relative;
}

.page-news .timeline-item__dot {
  position: absolute;
  left: -1.5rem;
  top: 0.25rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow:
    0 0 0 4px rgba(0, 255, 136, 0.15),
    0 0 14px rgba(0, 255, 136, 0.45);
}

.page-news .timeline-item__content {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-glass);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.page-news .timeline-item__period {
  display: inline-block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.page-news .timeline-item h3 {
  font-size: 1.125rem;
  line-height: 1.4;
  margin: 0 0 0.5rem;
  color: var(--color-cloud);
}

.page-news .timeline-item p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-silver);
  margin: 0;
}

.page-news .changelog-visual__media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-steel);
}

.page-news .changelog-visual__caption {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--color-silver);
  margin: 1rem 0 0;
}

/* 数据观察 */
.page-news .data-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

.page-news .data-layout__visual {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-steel);
}

.page-news .data-layout__lead {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-cloud);
  margin: 0 0 2rem;
  max-width: 560px;
}

.page-news .data-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.page-news .data-facts__item {
  background: linear-gradient(145deg, rgba(0, 255, 136, 0.06), rgba(255, 122, 0, 0.04));
  border: 1px solid var(--color-glass);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-news .data-facts__number {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
}

.page-news .data-facts__label {
  font-size: 0.8125rem;
  color: var(--color-silver);
  line-height: 1.4;
}

/* 使用技巧 */
.page-news .tips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-news .tip-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-glass);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition);
}

.page-news .tip-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 136, 0.35);
}

.page-news .tip-card__media {
  overflow: hidden;
}

.page-news .tip-card__body {
  padding: 1.25rem;
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page-news .tip-card__num {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-pop);
  margin-bottom: 0.5rem;
}

.page-news .tip-card h3 {
  font-size: 1.125rem;
  line-height: 1.4;
  margin: 0 0 0.6rem;
  color: var(--color-cloud);
}

.page-news .tip-card p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-silver);
  margin: 0 0 1.1rem;
  flex: 1;
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-news {
    padding: 3rem 0 7rem;
  }

  .page-news .news-hero {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-news .news-hero__inner {
    max-width: 580px;
  }

  .page-news .news-tabs {
    flex-shrink: 0;
    margin-bottom: 0.25rem;
  }

  .page-news .section-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-news .featured-card__body {
    margin: -6rem 0 0 2rem;
    max-width: 620px;
    padding: 2rem;
  }

  .page-news .article-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }

  .page-news .article-card:first-child {
    grid-column: span 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .page-news .article-card:first-child .article-card__media {
    height: 100%;
    min-height: 220px;
  }

  .page-news .article-card:first-child .article-card__media img {
    height: 100%;
    object-fit: cover;
  }

  .page-news .article-card:first-child .article-card__body {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-news .changelog-layout {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
    align-items: center;
  }

  .page-news .data-layout {
    grid-template-columns: 5fr 7fr;
    gap: 3rem;
    align-items: center;
  }

  .page-news .data-facts {
    gap: 1.25rem;
  }

  .page-news .tips-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: start;
  }

  .page-news .tip-card:nth-child(2) {
    margin-top: 2.5rem;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 1024px) {
  .page-news .news-hero__desc {
    font-size: 1.0625rem;
  }

  .page-news .featured-card__body {
    margin: -8rem 0 0 1rem;
    max-width: 680px;
    padding: 2.25rem 2.5rem;
  }

  .page-news .featured-card h3 {
    font-size: 1.75rem;
  }

  .page-news .article-cards {
    grid-template-columns: repeat(12, 1fr);
    gap: 2.5rem;
  }

  .page-news .article-card:first-child {
    grid-column: 1 / span 7;
    display: flex;
    flex-direction: column;
  }

  .page-news .article-card:first-child .article-card__media {
    min-height: 0;
    height: auto;
  }

  .page-news .article-card:first-child .article-card__media img {
    height: auto;
  }

  .page-news .article-card:first-child .article-card__body {
    display: block;
  }

  .page-news .article-card:nth-child(2) {
    grid-column: 8 / span 5;
    align-self: start;
    margin-top: 3rem;
  }

  .page-news .article-card:nth-child(3) {
    grid-column: 3 / span 6;
  }
}