.page-news {
  --news-border: 3px;
  --news-border-dark: 4px;
  --news-shadow: 8px 8px 0 rgba(10, 25, 47, 0.12);
  --news-shadow-accent: 8px 8px 0 rgba(255, 107, 53, 0.28);
  --news-rail: 220px;
  --news-gap: 40px;
  background: #FFFFFF;
  min-height: 60vh;
}

.page-news .container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.page-news__crumb {
  padding-top: 24px;
}

.page-news .breadcrumb__link {
  color: var(--color-info);
  text-decoration: none;
  font-weight: 600;
}

.page-news .breadcrumb__link:hover {
  color: var(--color-accent);
}

.page-news .breadcrumb__current {
  color: var(--color-ink);
  font-weight: 600;
}

.page-news .chapter {
  margin-bottom: 28px;
}

.page-news .chapter__index {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent);
  margin-right: 16px;
  min-width: 72px;
}

.page-news .chapter__heading {
  display: inline-block;
  vertical-align: middle;
}

.page-news .chapter__kicker {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-info);
  margin-bottom: 4px;
}

.page-news .chapter__title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0;
  line-height: 1.2;
}

.page-news .chapter--dark .chapter__index {
  color: var(--color-highlight);
}

.page-news .chapter--dark .chapter__kicker {
  color: var(--color-info);
}

.page-news .chapter--dark .chapter__title {
  color: var(--color-paper);
}

.page-news .section__lead {
  font-size: 1rem;
  color: var(--color-ink);
  margin: 0 0 24px;
  max-width: 640px;
  line-height: 1.7;
}

.page-news .section--soft .section__lead {
  color: #4A4A52;
}

/* 头条区 */
.page-news .news-lead {
  padding: 32px 0 56px;
}

.page-news .news-lead__panel {
  background: var(--color-paper);
  border: var(--news-border-dark) solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--news-shadow);
  overflow: hidden;
}

.page-news .news-lead__media {
  position: relative;
  border-bottom: var(--news-border-dark) solid var(--color-primary);
}

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

.page-news .news-lead__stamp {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--color-highlight);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  transform: rotate(2deg);
}

.page-news .news-lead__content {
  padding: 24px 20px 28px;
}

.page-news .news-lead__title {
  font-family: var(--font-heading);
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-primary);
  margin: 14px 0 12px;
}

.page-news .news-lead__abstract {
  font-size: 1rem;
  line-height: 1.75;
  color: #3A3A42;
  margin: 0 0 20px;
  max-width: 720px;
}

.page-news .news-lead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.92rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-news .btn--primary {
  background: var(--color-accent);
  border: 2px solid var(--color-primary);
  color: var(--color-paper);
  box-shadow: 4px 4px 0 var(--color-primary);
}

.page-news .btn--highlight {
  background: var(--color-highlight);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  box-shadow: 4px 4px 0 var(--color-primary);
}

.page-news .btn--ghost {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  box-shadow: 4px 4px 0 var(--color-primary);
}

.page-news .btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--color-primary);
}

.page-news .btn:focus-visible {
  outline: 3px dashed var(--color-accent);
  outline-offset: 3px;
}

/* 动态标签 */
.page-news .feed-tabs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
  padding: 14px 16px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
}

.page-news .feed-tabs__label {
  color: var(--color-highlight);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-news .feed-tabs__link {
  background: var(--color-paper);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.84rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.16s ease, color 0.16s ease;
}

.page-news .feed-tabs__link:hover {
  background: var(--color-accent);
  color: var(--color-paper);
}

.page-news .feed-tabs__link:focus-visible {
  outline: 3px dashed var(--color-highlight);
  outline-offset: 2px;
}

/* 动态列表 */
.page-news .feed-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-news .feed-item {
  background: var(--color-paper);
  border: var(--news-border) solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: 6px 6px 0 rgba(10, 25, 47, 0.1);
  padding: 20px;
  scroll-margin-top: 24px;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-news .feed-item:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(255, 107, 53, 0.24);
}

.page-news .feed-item__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.page-news .feed-item__period {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-info);
  background: #EAF2F8;
  border-radius: 999px;
  padding: 4px 12px;
}

.page-news .feed-item__title {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 8px;
}

.page-news .feed-item__summary {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #3A3A42;
  margin: 0 0 10px;
}

.page-news .feed-item__details {
  border-top: 2px dashed #D9D9DE;
  padding-top: 10px;
}

.page-news .feed-item__details summary {
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-accent);
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-news .feed-item__details summary::-webkit-details-marker {
  display: none;
}

.page-news .feed-item__details summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  color: var(--color-paper);
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.9rem;
  line-height: 1;
}

.page-news .feed-item__details[open] summary::before {
  content: "−";
}

.page-news .feed-item__details p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: #3A3A42;
  margin: 10px 0 0;
  padding-left: 26px;
}

.page-news .feed-item__details a {
  color: var(--color-info);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-news .feed-item__details a:hover {
  color: var(--color-accent);
}

/* 版本迭代区 */
.page-news .news-versions {
  background: var(--color-paper);
  padding: 64px 0 72px;
}

.page-news .version-layout {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.page-news .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-news .version-list::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: var(--color-primary);
  opacity: 0.14;
  border-radius: 999px;
}

.page-news .version-list__item {
  position: relative;
  padding: 0 0 28px 52px;
}

.page-news .version-list__item:last-child {
  padding-bottom: 0;
}

.page-news .version-list__badge {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  background: var(--color-accent);
  color: var(--color-paper);
  border: 2px solid var(--color-primary);
  box-shadow: 2px 2px 0 rgba(10, 25, 47, 0.18);
  z-index: 1;
}

.page-news .version-list__panel {
  background: #F8F9FB;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-news .version-list__item:hover .version-list__panel {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(10, 25, 47, 0.12);
}

.page-news .version-list__panel h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 6px;
}

.page-news .version-list__panel p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #3A3A42;
  margin: 0;
}

.page-news .version-layout__side {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.page-news .news-media {
  border: var(--news-border-dark) solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--news-shadow);
  overflow: hidden;
}

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

.page-news .version-layout__note {
  background: var(--color-primary);
  border-radius: var(--radius-md);
  padding: 22px;
  color: var(--color-paper);
}

.page-news .version-layout__note h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  margin: 14px 0 12px;
}

.page-news .version-layout__note ul {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-news .version-layout__note li {
  position: relative;
  padding: 6px 0 6px 28px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.page-news .version-layout__note li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 14px;
  width: 10px;
  height: 10px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-news .version-layout__note .btn {
  background: var(--color-highlight);
  border: 2px solid var(--color-paper);
  color: var(--color-primary);
  box-shadow: 4px 4px 0 var(--color-accent);
}

.page-news .version-layout__note .btn:hover {
  box-shadow: 6px 6px 0 var(--color-accent);
}

/* 活动周期表区 */
.page-news .news-season {
  background: var(--color-primary);
  padding: 64px 0 72px;
}

.page-news .season-layout {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.page-news .season-layout__intro {
  max-width: 720px;
}

.page-news .season-layout__intro p {
  color: #D4DAE4;
  font-size: 1.02rem;
  line-height: 1.75;
  margin: 0;
}

.page-news .season-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news .season-grid__card {
  background: var(--color-paper);
  border: var(--news-border) solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: 6px 6px 0 rgba(255, 107, 53, 0.3);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-news .season-grid__card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(255, 209, 102, 0.45);
}

.page-news .season-grid__quarter {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 10px;
}

.page-news .season-grid__card h3 {
  font-family: var(--font-heading);
  font-size: 1.14rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 8px;
}

.page-news .season-grid__card p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: #3A3A42;
  margin: 0 0 12px;
}

.page-news .season-grid__tag {
  display: inline-block;
  background: #EAF2F8;
  color: var(--color-info);
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 4px 12px;
}

.page-news .season-poster {
  border: var(--news-border-dark) solid var(--color-accent);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 10px 10px 0 rgba(255, 209, 102, 0.25);
}

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

/* 服务公告区 */
.page-news .news-notice {
  background: #F5F5F5;
  padding: 64px 0 72px;
}

.page-news .notice-layout {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.page-news .notice-layout__icon {
  background: var(--color-paper);
  border: var(--news-border-dark) solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--news-shadow);
  padding: 20px;
  text-align: center;
}

.page-news .notice-layout__icon img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
}

.page-news .notice-layout__icon p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: #3A3A42;
  background: var(--color-soft);
  border-radius: var(--radius-sm);
  margin: 16px 0 0;
  padding: 12px;
}

.page-news .notice-layout__list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-news .notice-item {
  display: flex;
  gap: 16px;
  background: var(--color-paper);
  border: var(--news-border) solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: 6px 6px 0 rgba(10, 25, 47, 0.08);
  padding: 18px 20px;
  scroll-margin-top: 24px;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.page-news .notice-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(255, 107, 53, 0.2);
}

.page-news .notice-item__num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  min-width: 34px;
}

.page-news .notice-item__body h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 8px;
}

.page-news .notice-item__body p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: #3A3A42;
  margin: 0;
}

.page-news .notice-item__body a {
  color: var(--color-info);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-news .notice-item__body a:hover {
  color: var(--color-accent);
}

.page-news .page-news__more {
  margin-top: 48px;
  text-align: center;
  background: var(--gradient-cta);
  border: var(--news-border-dark) solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--news-shadow-accent);
  padding: 28px 20px;
}

.page-news .page-news__more p {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 16px;
}

.page-news .page-news__more .btn {
  background: var(--color-primary);
  border: 2px solid var(--color-paper);
  color: var(--color-paper);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.4);
}

.page-news .page-news__more .btn:hover {
  box-shadow: 6px 6px 0 rgba(255, 255, 255, 0.5);
}

/* 深色区域链接与聚焦 */
.page-news .news-season a:focus-visible,
.page-news .news-feed a:focus-visible,
.page-news .news-notice a:focus-visible {
  outline: 3px dashed var(--color-highlight);
  outline-offset: 3px;
}

.page-news .season-grid__card:focus-within,
.page-news .notice-item:focus-within,
.page-news .feed-item:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(255, 107, 53, 0.24);
}

/* 桌面端 */
@media (min-width: 900px) {
  .page-news .container {
    padding: 0 32px;
  }

  .page-news__crumb {
    padding-top: 32px;
  }

  .page-news .chapter {
    margin-bottom: 36px;
  }

  .page-news .chapter__index {
    font-size: 3.6rem;
    min-width: 88px;
  }

  .page-news .chapter__title {
    font-size: 2.2rem;
  }

  .page-news .section__lead {
    font-size: 1.05rem;
    margin-bottom: 36px;
  }

  /* 头条区 */
  .page-news .news-lead {
    padding: 40px 0 72px;
  }

  .page-news .news-lead__content {
    padding: 36px 40px 40px;
  }

  .page-news .news-lead__title {
    font-size: 2.1rem;
  }

  .page-news .news-lead__abstract {
    font-size: 1.06rem;
  }

  .page-news .news-lead__actions {
    gap: 16px;
  }

  /* 动态列表：杂志式左右布局 */
  .page-news .feed-tabs {
    margin-bottom: 36px;
    padding: 16px 20px;
  }

  .page-news .feed-list {
    gap: 24px;
  }

  .page-news .feed-item {
    display: grid;
    grid-template-columns: var(--news-rail) 1fr;
    gap: 28px;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
  }

  .page-news .feed-item:hover {
    transform: none;
    box-shadow: none;
  }

  .page-news .feed-item__meta {
    flex-direction: column;
    align-items: flex-end;
    margin: 0;
    padding: 8px 24px 8px 0;
    border-right: 4px solid var(--color-accent);
  }

  .page-news .feed-item__card {
    background: var(--color-paper);
    border: var(--news-border) solid var(--color-primary);
    border-radius: var(--radius-md);
    box-shadow: 6px 6px 0 rgba(10, 25, 47, 0.1);
    padding: 26px 28px;
    transition: transform 0.16s ease, box-shadow 0.16s ease;
  }

  .page-news .feed-item__card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 9px 9px 0 rgba(255, 107, 53, 0.24);
  }

  .page-news .feed-item__title {
    font-size: 1.28rem;
  }

  .page-news .feed-item__summary {
    font-size: 0.98rem;
  }

  /* 版本迭代 */
  .page-news .news-versions {
    padding: 80px 0 96px;
  }

  .page-news .version-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 48px;
    align-items: start;
  }

  .page-news .version-list__badge {
    width: 40px;
    height: 40px;
    font-size: 0.78rem;
  }

  .page-news .version-list__item {
    padding-left: 60px;
  }

  .page-news .version-list__panel {
    padding: 20px 24px;
  }

  /* 活动周期表 */
  .page-news .news-season {
    padding: 80px 0 96px;
  }

  .page-news .season-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    grid-template-areas:
      "intro poster"
      "grid poster";
    gap: 44px 48px;
  }

  .page-news .season-layout__intro {
    grid-area: intro;
  }

  .page-news .season-grid {
    grid-area: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }

  .page-news .season-poster {
    grid-area: poster;
    align-self: start;
  }

  .page-news .season-poster img {
    min-height: 100%;
  }

  /* 服务公告 */
  .page-news .news-notice {
    padding: 80px 0 96px;
  }

  .page-news .notice-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-news .notice-layout__icon {
    position: sticky;
    top: 24px;
    padding: 24px;
  }

  .page-news .notice-item {
    padding: 22px 24px;
  }

  .page-news .notice-item__num {
    font-size: 2.4rem;
    min-width: 44px;
  }

  .page-news .page-news__more {
    margin-top: 64px;
    padding: 36px;
  }
}