.page-news {
  --news-rail: 212px;
  --news-gap: clamp(16px, 2.4vw, 28px);
  padding: clamp(18px, 3vw, 34px) 0 clamp(56px, 9vw, 108px);
  color: var(--ink-050);
  background:
    radial-gradient(120% 55% at 100% 0%, rgba(53, 242, 224, 0.09), transparent 62%),
    radial-gradient(90% 45% at 0% 10%, rgba(255, 106, 43, 0.06), transparent 58%);
}

/* 面包屑 */
.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 34px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist-300);
}
.page-news .crumb {
  color: var(--mist-300);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.page-news .crumb:hover,
.page-news .crumb:focus-visible {
  color: var(--cyan-200);
}
.page-news .crumb[aria-current="page"] {
  color: var(--cyan-400);
}
.page-news .crumb-sep {
  color: var(--ocean-600);
}

/* 章节标签与标题 */
.page-news .chapter__label {
  position: relative;
  margin: 0 0 10px;
  padding-left: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan-200);
}
.page-news .chapter__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 16px;
  height: 1px;
  background: var(--cyan-400);
}
.page-news .chapter__index {
  display: block;
  font-family: var(--font-mono);
  font-weight: 300;
  font-size: clamp(40px, 7vw, 84px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--cyan-400);
  opacity: 0.26;
}
.page-news .chapter__title {
  margin: 0 0 14px;
  max-width: 18em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.1vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink-050);
}
.page-news .chapter__text {
  margin: 0 0 14px;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist-300);
}
.page-news .chapter__link {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist-300);
}
.page-news .inline-link {
  color: var(--cyan-200);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
}
.page-news .inline-link:hover,
.page-news .inline-link:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

/* 首屏 */
.page-news .feed-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: end;
  margin-bottom: clamp(30px, 5vw, 62px);
}
.page-news .feed-head__title {
  margin: 12px 0 0;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(27px, 4.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}
.page-news .feed-head__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist-300);
}
.page-news .head-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--line-soft);
  overflow: hidden;
}
.page-news .head-stats__cell {
  padding: 13px 15px;
  background: rgba(12, 24, 48, 0.82);
}
.page-news .head-stats__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist-dim);
}
.page-news .head-stats__val {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 18px);
  letter-spacing: -0.02em;
  color: var(--cyan-400);
}
.page-news .head-stats__val--text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(14px, 1.7vw, 16px);
  letter-spacing: 0;
  color: var(--ink-050);
}
.page-news .feed-head__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  box-shadow: 0 0 46px rgba(53, 242, 224, 0.1);
}
.page-news .feed-head__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.03);
}

/* 条目流标题 */
.page-news .feed-top {
  display: flex;
  align-items: flex-start;
  gap: clamp(14px, 2vw, 24px);
  padding-bottom: clamp(14px, 2vw, 22px);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: clamp(20px, 3vw, 34px);
}
.page-news .feed-top__body {
  padding-top: 4px;
}
.page-news .feed-top__body .chapter__title {
  margin-bottom: 0;
}

/* 布局：左轨道 + 右条目流 */
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 44px);
}
.page-news .rail {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(18, 39, 69, 0.92), rgba(7, 13, 28, 0.94));
  box-shadow: 0 0 26px rgba(53, 242, 224, 0.06);
}
.page-news .rail__title {
  margin: 0 0 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--mist-dim);
  text-transform: uppercase;
}
.page-news .rail__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: rgba(27, 58, 99, 0.36);
  color: var(--ink-050);
  font-size: 12.5px;
  line-height: 1.2;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-news .pill:hover,
.page-news .pill:focus-visible {
  background: rgba(53, 242, 224, 0.16);
  border-color: var(--cyan-200);
  color: var(--cyan-200);
}

@media (max-width: 979px) {
  .page-news .rail {
    position: sticky;
    top: 8px;
    z-index: 6;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    overflow-x: auto;
    background: rgba(5, 10, 22, 0.94);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
  }
  .page-news .rail__title {
    display: none;
  }
  .page-news .rail__group {
    display: contents;
  }
  .page-news .rail__pills {
    display: contents;
  }
  .page-news .pill {
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

@media (min-width: 980px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
  }
  .page-news .rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

/* 阶段分组 */
.page-news .stage {
  margin-bottom: clamp(26px, 4vw, 48px);
  scroll-margin-top: 88px;
}
.page-news .stage__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 clamp(14px, 2vw, 22px);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 2.1vw, 21px);
  color: var(--ink-050);
}
.page-news .stage__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.16em;
  color: var(--cyan-400);
}
.page-news .stage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

/* 条目卡 */
.page-news .post {
  position: relative;
  overflow: hidden;
  padding: clamp(15px, 2.2vw, 23px);
  border: 1px solid var(--line-soft);
  border-radius: 22px;
  background: linear-gradient(165deg, rgba(18, 39, 69, 0.88), rgba(7, 13, 28, 0.95));
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease), box-shadow 0.32s var(--ease);
  scroll-margin-top: 96px;
}
.page-news .post:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 0 30px rgba(53, 242, 224, 0.13);
}
.page-news .post__flag {
  position: absolute;
  top: 0;
  left: 0;
  width: 76px;
  height: 6px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
  border-top-left-radius: 22px;
}
.page-news .post__flag--version {
  background: var(--cyan-400);
}
.page-news .post__flag--report {
  background: var(--signal-500);
}
.page-news .post__flag--notice {
  background: var(--mist-300);
}
.page-news .post__flag--feature {
  background: var(--cyan-200);
}
.page-news .post__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 8px 0 12px;
}
.page-news .post__tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--mist-300);
  background: rgba(12, 24, 48, 0.72);
}
.page-news .post__tag--version {
  color: var(--cyan-400);
  border-color: rgba(53, 242, 224, 0.42);
}
.page-news .post__tag--report {
  color: #FFB796;
  border-color: rgba(255, 106, 43, 0.42);
}
.page-news .post__tag--notice {
  color: var(--mist-300);
}
.page-news .post__tag--feature {
  color: var(--cyan-200);
  border-color: rgba(141, 249, 239, 0.34);
}
.page-news .post__time {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist-dim);
  white-space: nowrap;
}
.page-news .post__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15.5px, 1.9vw, 18.5px);
  line-height: 1.46;
  color: var(--ink-050);
}
.page-news .post__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist-300);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.page-news .post:hover .post__text {
  -webkit-line-clamp: 3;
}

@media (min-width: 760px) {
  .page-news .stage__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .stage__grid > .post:nth-child(2n) {
    margin-top: 44px;
  }
  .page-news .stage__grid > .post:nth-child(3n) {
    margin-top: 22px;
  }
}

/* 全宽信号带 */
.page-news .signal-band {
  display: flex;
  align-items: center;
  height: 32px;
  margin: clamp(16px, 3vw, 32px) 0;
  overflow: hidden;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, rgba(53, 242, 224, 0.1), rgba(255, 106, 43, 0.07));
}
.page-news .signal-band__track {
  display: flex;
  flex: 0 0 auto;
  gap: 34px;
  padding-left: 18px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan-200);
  animation: news-ticker 34s linear infinite;
}
.page-news .signal-band__track span {
  position: relative;
}
.page-news .signal-band__track span::after {
  content: "";
  position: absolute;
  right: -20px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--signal-500);
  opacity: 0.75;
}
@keyframes news-ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .page-news .signal-band__track {
    animation: none;
  }
}

/* 章节区块 */
.page-news .chapter {
  padding: clamp(30px, 6vw, 68px) 0;
  border-top: 1px solid var(--line-soft);
  scroll-margin-top: 88px;
}
.page-news .chapter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
  margin-top: 16px;
}
.page-news .chapter__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  background: var(--ocean-800);
  box-shadow: 0 0 34px rgba(53, 242, 224, 0.08);
}
.page-news .chapter__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-news .chapter__media--slant {
  border-radius: var(--r-lg);
  clip-path: polygon(0 0, 100% 4%, 100% 100%, 0 96%);
}
.page-news .ticks {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-news .ticks li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist-300);
}
.page-news .ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 10px rgba(53, 242, 224, 0.6);
}

@media (min-width: 900px) {
  .page-news .chapter__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-news .chapter__grid--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-news .chapter__grid--flip .chapter__media {
    order: -1;
  }
}

/* 专题双形态 */
.page-news .feature-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 20px;
}
.page-news .feature-pair__item {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan-400);
  border-radius: var(--r-md);
  background: rgba(18, 39, 69, 0.62);
}
.page-news .feature-pair__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  color: var(--cyan-200);
}
.page-news .feature-pair__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-300);
}
@media (min-width: 620px) {
  .page-news .feature-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* 底部长条 */
.page-news .chapter--browse {
  border-top: 1px solid var(--line-strong);
}
.page-news .browse {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
  align-items: center;
  margin-top: 16px;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  background:
    linear-gradient(120deg, rgba(18, 39, 69, 0.94), rgba(4, 7, 15, 0.94)),
    radial-gradient(80% 120% at 100% 0%, rgba(255, 106, 43, 0.16), transparent 60%);
  box-shadow: 0 0 34px rgba(53, 242, 224, 0.07);
}
.page-news .browse__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-news .browse__actions .btn {
  font-size: 13.5px;
  white-space: nowrap;
}
@media (min-width: 860px) {
  .page-news .browse {
    grid-template-columns: minmax(0, 1fr) auto;
  }
  .page-news .browse__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .page-news .feed-head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}
@media (min-width: 680px) {
  .page-news .head-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>