.page-news {
  --news-rail: 234px;
  --news-gap: clamp(22px, 3vw, 46px);
  --news-cut: 24px;
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
}

/* ---------- 顶部区域 ---------- */
.page-news .news-top {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(24px, 4vw, 46px) 0 clamp(30px, 4.5vw, 58px);
  background: linear-gradient(118deg, var(--ink-800) 0%, var(--ink-800) 40%, var(--ink-900) 82%);
  border-bottom: 1px solid var(--ink-700);
}

.page-news .news-top::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(30, 74, 63, 0.6) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 74, 63, 0.6) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(108deg, #000 14%, rgba(0, 0, 0, 0.12) 74%);
  mask-image: linear-gradient(108deg, #000 14%, rgba(0, 0, 0, 0.12) 74%);
  pointer-events: none;
}

.page-news .news-top::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: -32%;
  right: -8%;
  width: min(46%, 520px);
  height: 172%;
  background: linear-gradient(150deg, rgba(57, 242, 208, 0.16), rgba(57, 242, 208, 0) 68%);
  transform: skewX(-16deg);
  pointer-events: none;
}

.page-news .news-top__inner {
  position: relative;
  z-index: 1;
}

.page-news .news-top .eyebrow {
  margin: clamp(16px, 2.6vw, 28px) 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news h1 {
  max-width: 22ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 7vw, 66px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .news-top__lead {
  max-width: 60ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: clamp(18px, 3vw, 26px) 0 0;
  border-top: 1px solid var(--ink-700);
  list-style: none;
}

.page-news .news-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-news .news-stat__label {
  display: block;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ---------- 主体骨架 ---------- */
.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
  padding-top: clamp(28px, 4vw, 52px);
  padding-bottom: clamp(44px, 6vw, 88px);
}

/* ---------- 左侧索引栏 ---------- */
.page-news .news-rail {
  display: grid;
  gap: 20px;
  padding: 18px 16px;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
}

.page-news .rail-block__title {
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink-700);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .rail-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .rail-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 8px;
  border-left: 2px solid transparent;
  font-size: 14.5px;
  color: var(--paper);
  text-decoration: none;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news .rail-link:hover,
.page-news .rail-link.is-active {
  border-left-color: var(--cyan);
  background: var(--glass);
  color: var(--cyan);
}

.page-news .rail-link__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
  transition: color 0.2s var(--ease);
}

.page-news .rail-link.is-active .rail-link__num {
  color: var(--orange);
}

.page-news .rail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- 文章流 ---------- */
.page-news .news-flow {
  display: grid;
  gap: clamp(38px, 5vw, 66px);
  min-width: 0;
}

.page-news .news-section {
  scroll-margin-top: 24px;
  min-width: 0;
}

.page-news .news-section__head {
  position: relative;
  margin-bottom: clamp(18px, 3vw, 28px);
  padding: 0 0 14px 16px;
  border-bottom: 1px solid var(--ink-700);
}

.page-news .news-section__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 22px;
  width: 4px;
  background: linear-gradient(var(--orange), var(--cyan));
  transform: skewY(-12deg);
}

.page-news .news-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 36px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-news .news-section__note {
  max-width: 62ch;
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 首条大卡 */
.page-news .lead-card {
  position: relative;
  overflow: hidden;
  margin-bottom: clamp(18px, 3vw, 28px);
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .lead-card:hover {
  border-color: rgba(57, 242, 208, 0.55);
  transform: translateY(-2px);
}

.page-news .lead-card::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: var(--news-cut);
  height: var(--news-cut);
  background: var(--ink-900);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-news .lead-card__media {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink-700);
}

.page-news .lead-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-news .lead-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(198deg, rgba(11, 31, 26, 0.02) 32%, rgba(11, 31, 26, 0.82) 100%);
  pointer-events: none;
}

.page-news .lead-card__body {
  padding: clamp(18px, 3vw, 30px);
  padding-bottom: clamp(26px, 3.4vw, 38px);
}

.page-news .lead-card__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 33px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0.01em;
}

.page-news .lead-card__title a {
  color: var(--paper);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-news .lead-card__title a:hover {
  color: var(--cyan);
}

.page-news .lead-card__text {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .lead-card__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--ink-700);
}

.page-news .lead-card__stamp {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--yellow);
}

/* 紧凑列表 */
.page-news .feed {
  display: grid;
  border-top: 1px solid var(--ink-700);
}

.page-news .feed-item {
  display: grid;
  gap: 7px;
  padding: 18px 8px 18px 12px;
  border-bottom: 1px solid var(--ink-700);
  transition: background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-news .feed-item:hover {
  background: var(--glass);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-news .feed-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .feed-item__time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-news .feed-item__main {
  min-width: 0;
}

.page-news .feed-item__title {
  margin: 0 0 6px;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 600;
  line-height: 1.46;
}

.page-news .feed-item__title a {
  color: var(--paper);
  text-decoration: none;
  background-image: linear-gradient(var(--cyan), var(--cyan));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: background-size 0.25s var(--ease), color 0.25s var(--ease);
}

.page-news .feed-item__title a:hover {
  color: var(--cyan);
  background-size: 100% 1px;
}

.page-news .feed-item__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 专题系列 ---------- */
.page-news .topic-grid {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-news .topic-stack {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-news .topic-card {
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
  transition: border-color 0.22s var(--ease);
}

.page-news .topic-card:hover {
  border-color: rgba(57, 242, 208, 0.4);
}

.page-news .topic-card[open] {
  border-color: rgba(57, 242, 208, 0.55);
}

.page-news .topic-card__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-news .topic-card__summary::-webkit-details-marker {
  display: none;
}

.page-news .topic-card__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--orange);
}

.page-news .topic-card[open] .topic-card__summary::after {
  content: "−";
}

.page-news .topic-card__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-news .topic-card__name {
  min-width: 0;
}

.page-news .topic-card__body {
  margin-top: 2px;
  padding: 0 16px 16px;
  border-top: 1px solid var(--ink-700);
}

.page-news .topic-card__body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .topic-shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
}

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

.page-news .topic-shot figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--ink-700);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.65;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 阅读路径 ---------- */
.page-news .path-layout {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-news .path-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
}

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

.page-news .path-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-news .path-item {
  position: relative;
  padding: 18px 18px 18px 52px;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-news .path-item:hover {
  border-color: rgba(255, 122, 47, 0.55);
  transform: translateX(3px);
}

.page-news .path-item__num {
  position: absolute;
  left: 16px;
  top: 19px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-news .path-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-news .path-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .path-item__link {
  display: inline-block;
  margin-top: 10px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(57, 242, 208, 0.35);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
  text-decoration: none;
  transition: border-color 0.2s var(--ease);
}

.page-news .path-item__link:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 收藏与更新 ---------- */
.page-news .saved-layout {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  align-items: center;
}

.page-news .saved-body {
  min-width: 0;
}

.page-news .saved-list {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-news .saved-list li {
  padding-left: 14px;
  border-left: 2px solid var(--ink-700);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .saved-list__k {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--yellow);
}

.page-news .saved-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink-700);
  background: var(--ink-800);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-news .news-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 24px;
  }
}

@media (min-width: 720px) {
  .page-news .news-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .feed-item {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 20px;
    align-items: start;
    padding: 20px 10px 20px 14px;
  }
}

@media (min-width: 860px) {
  .page-news .topic-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .path-layout {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .saved-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 960px) {
  .page-news .news-body {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-rail {
    grid-template-columns: minmax(0, 1fr);
    position: sticky;
    top: 24px;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
    scrollbar-width: thin;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition: none !important;
    animation: none !important;
  }

  .page-news .lead-card:hover,
  .page-news .path-item:hover {
    transform: none;
  }
}
<<<END>>>