.page-news {
  --rail-w: 208px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* 面包屑 */
.page-news .breadcrumb {
  padding: 18px 0 4px;
  font-size: 14px;
}
.page-news .breadcrumb .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--stone);
}
.page-news .breadcrumb a {
  color: var(--sea);
  text-decoration: none;
}
.page-news .breadcrumb a:hover {
  color: var(--coral-deep);
}
.page-news .breadcrumb a:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

/* 首屏封面大卡 */
.page-news .feature-cover {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: clamp(430px, 64vh, 640px);
  margin-top: 10px;
  background: var(--deep);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), 0 100%);
}
.page-news .cover-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.88) brightness(.94);
}
.page-news .feature-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(11, 62, 99, .34) 0%, rgba(11, 62, 99, .3) 36%, rgba(11, 62, 99, .88) 100%);
}
.page-news .cover-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-top: clamp(120px, 20vw, 190px);
  padding-bottom: clamp(62px, 10vw, 104px);
}
.page-news .cover-copy {
  max-width: 820px;
  color: var(--white);
}
.page-news .cover-copy .eyebrow {
  display: inline-block;
  margin: 0;
  color: var(--sun);
  font-weight: 600;
  letter-spacing: .1em;
  font-size: 13px;
}
.page-news .cover-copy h1 {
  margin: 12px 0 0;
  color: var(--white);
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
}
.page-news .cover-copy .lede {
  max-width: 620px;
  margin: 16px 0 0;
  color: rgba(255, 255, 255, .9);
  font-size: 17px;
  line-height: 1.85;
}
.page-news .cover-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-news .feature-cover .btn-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, .58);
}
.page-news .feature-cover .btn-ghost:hover {
  color: var(--ink);
  border-color: var(--coral);
}

/* 索引条 */
.page-news .index-bar {
  padding: clamp(26px, 4vw, 44px) 0 clamp(20px, 3vw, 32px);
  background: var(--surface);
  border-bottom: 1px solid var(--line-soft);
}
.page-news .lane-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.page-news .lane {
  display: block;
  padding: 16px 18px;
  background: var(--sand);
  color: var(--ink);
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: background .18s var(--ease), transform .18s var(--ease);
}
.page-news .lane:hover {
  background: var(--coral-light);
  transform: translateY(-4px);
}
.page-news .lane:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}
.page-news .lane-no {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--coral-deep);
  font-variant-numeric: tabular-nums;
}
.page-news .lane strong {
  display: block;
  margin: 6px 0;
  font-size: 20px;
  letter-spacing: -.01em;
}
.page-news .lane-note {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-news .chip-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding-bottom: 4px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.page-news .chip-label {
  flex: none;
  font-size: 14px;
  color: var(--stone);
}
.page-news .chip {
  flex: none;
  scroll-snap-align: start;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--sea);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}
.page-news .chip:hover {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ink);
}
.page-news .chip:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

/* 主体：滑轨 + 列表 */
.page-news .news-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}
.page-news .rail {
  padding-left: 16px;
  border-left: 3px solid var(--sea);
}
.page-news .rail-title {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--stone);
}
.page-news .rail-list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-news .rail-list li {
  flex: none;
}
.page-news .rail-list a {
  display: block;
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--sea);
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
  transition: background .16s var(--ease), color .16s var(--ease);
}
.page-news .rail-list a:hover {
  background: var(--shallow);
  color: var(--deep);
}
.page-news .rail-list a:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}
.page-news .stream {
  min-width: 0;
}

/* 分组 */
.page-news .stream-group {
  margin-bottom: 46px;
  scroll-margin-top: calc(var(--header-h) + 20px);
}
.page-news .stream-group:last-child {
  margin-bottom: 0;
}
.page-news .group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.page-news .group-no {
  font-size: 22px;
  font-weight: 800;
  color: var(--coral);
  font-variant-numeric: tabular-nums;
}
.page-news .group-head h2 {
  margin: 0 0 6px;
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: -.02em;
}
.page-news .group-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--stone);
}

/* 条目 */
.page-news .entry-list {
  display: grid;
  gap: 14px;
}
.page-news .entry {
  display: grid;
  grid-template-columns: 5px 1fr;
  background: var(--surface);
  box-shadow: var(--shadow-1);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
}
.page-news .entry:hover,
.page-news .entry:focus-visible {
  background: var(--coral-light);
  box-shadow: var(--shadow-2);
  transform: translateY(-4px);
}
.page-news .entry:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}
.page-news .entry-bar {
  display: block;
  background: var(--sea);
}
.page-news .entry-bar--sea {
  background: var(--sea);
}
.page-news .entry-bar--palm {
  background: var(--palm);
}
.page-news .entry-bar--coral {
  background: var(--coral);
}
.page-news .entry-bar--sun {
  background: var(--sun-deep);
}
.page-news .entry-body {
  min-width: 0;
  padding: 18px 20px 20px;
}
.page-news .entry-media {
  display: block;
  width: 100%;
  height: 180px;
  margin-bottom: 14px;
  object-fit: cover;
}
.page-news .entry-body h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
}
.page-news .entry-body > p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}
.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  opacity: .78;
  transition: opacity .18s var(--ease);
}
.page-news .entry:hover .entry-meta,
.page-news .entry:focus-visible .entry-meta {
  opacity: 1;
}
.page-news .entry-meta .tag {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--shallow);
  color: var(--sea);
  font-size: 12px;
  font-weight: 600;
}
.page-news .entry:hover .entry-meta .tag {
  background: var(--white);
}
.page-news .entry-time {
  margin-left: auto;
  font-size: 13px;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}

/* 版本记录合流区 */
.page-news .log-zone {
  padding: clamp(46px, 6vw, 72px) 0 clamp(36px, 5vw, 58px);
  background: linear-gradient(180deg, var(--shallow) 0%, #EAF4F9 100%);
  clip-path: polygon(0 26px, 100% 0, 100% 100%, 0 100%);
}
.page-news .log-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}
.page-news .log-intro .eyebrow {
  display: inline-block;
  margin: 0;
  color: var(--coral-deep);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
}
.page-news .log-intro h2 {
  margin: 10px 0 14px;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -.02em;
  line-height: 1.24;
}
.page-news .log-intro > p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}
.page-news .log-img {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 22px;
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, 0 100%);
}
.page-news .log-side {
  min-width: 0;
}
.page-news .log-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .log-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 18px;
  background: var(--white);
  box-shadow: var(--shadow-1);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}
.page-news .log-ver {
  font-size: 13px;
  font-weight: 600;
  color: var(--palm-deep);
  font-variant-numeric: tabular-nums;
}
.page-news .log-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}
.page-news .log-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* 订阅与收藏 */
.page-news .follow {
  padding: clamp(42px, 6vw, 78px) 0 clamp(48px, 6vw, 84px);
  background: var(--bg);
}
.page-news .follow-head {
  max-width: 640px;
}
.page-news .follow-head h2 {
  margin: 0 0 10px;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -.02em;
}
.page-news .follow-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--stone);
}
.page-news .follow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}
.page-news .follow-card {
  padding: 22px;
  background: var(--coral-light);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}
.page-news .follow-no {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--coral-deep);
  font-variant-numeric: tabular-nums;
}
.page-news .follow-card h3 {
  margin: 10px 0 8px;
  font-size: 19px;
  letter-spacing: -.01em;
}
.page-news .follow-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}
.page-news .follow-note {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}
.page-news .follow-note a {
  color: var(--coral-deep);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(217, 68, 31, .4);
}
.page-news .follow-note a:hover {
  border-bottom-color: var(--coral-deep);
}
.page-news .follow-note a:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

/* 响应式 */
@media (min-width: 700px) {
  .page-news .lane-track {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news .entry-body {
    padding: 20px 24px 22px;
  }
  .page-news .log-list li {
    grid-template-columns: 92px 1fr;
    gap: 14px;
    align-items: baseline;
  }
}

@media (max-width: 899px) {
  .page-news .rail-list {
    display: flex;
    gap: 8px;
    padding-bottom: 6px;
  }
}

@media (min-width: 900px) {
  .page-news .news-shell {
    grid-template-columns: var(--rail-w) 1fr;
    gap: 48px;
  }
  .page-news .rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }
}

@media (min-width: 940px) {
  .page-news .log-grid {
    grid-template-columns: 1.05fr 1fr;
    gap: 48px;
  }
  .page-news .entry-media {
    height: 230px;
  }
}

@media (min-width: 1060px) {
  .page-news .lane-track {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-news .follow-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .lane,
  .page-news .entry,
  .page-news .chip,
  .page-news .rail-list a {
    transition: none;
  }
  .page-news .lane:hover,
  .page-news .entry:hover,
  .page-news .entry:focus-visible {
    transform: none;
  }
}