.page-news {
  --news-idx: 250px;
  --news-gutter: clamp(16px, 3vw, 40px);
  --news-cut: 18px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

.page-news img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-news h1,
.page-news h2,
.page-news h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.1;
}

.page-news p,
.page-news ul,
.page-news ol,
.page-news dl,
.page-news figure,
.page-news li {
  margin: 0;
}

.page-news ul,
.page-news ol {
  list-style: none;
  padding: 0;
}

.page-news .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* 面包屑 */
.page-news .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* 首屏 */
.news-hero {
  padding: clamp(24px, 4vw, 56px) 0 0;
}

.news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 44px);
  margin-top: clamp(18px, 3vw, 32px);
}

.news-hero h1 {
  margin-top: 14px;
  font-size: clamp(34px, 7.4vw, 74px);
  max-width: 18ch;
}

.news-hero__lede {
  margin-top: 18px;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.news-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 14px;
}

.news-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.news-hero__stats .mono {
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.15;
  color: var(--lime);
}

.news-hero__stats li span:last-child {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

/* 置顶通告 */
.news-pin {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: clamp(24px, 4vw, 40px);
  padding: 14px 16px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.news-pin__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.news-pin__text {
  flex: 1 1 240px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--white);
}

.news-pin__link {
  font-size: 13px;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.news-pin__link:hover,
.news-pin__link:focus-visible {
  color: var(--white);
}

/* 分类胶囊 */
.news-filter {
  display: flex;
  gap: 8px;
  margin-top: 18px;
  padding-bottom: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.news-filter__item {
  flex: 0 0 auto;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.news-filter__item:hover,
.news-filter__item:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.news-filter__item--all {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
  font-weight: 700;
}

.news-filter__item--all:hover,
.news-filter__item--all:focus-visible {
  background: var(--lime);
  color: var(--ink);
}

/* 宽幅头图 */
.news-banner {
  margin-top: clamp(24px, 4vw, 48px);
}

.news-banner__fig {
  margin: 0;
}

.news-banner__fig img {
  width: 100%;
  aspect-ratio: 7 / 4;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--surface);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.news-banner__cap {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* 主体两栏 */
.news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(28px, 5vw, 60px);
  margin-bottom: clamp(32px, 5vw, 64px);
}

/* 左侧分类索引 */
.news-index {
  border-top: 2px solid var(--lime);
  padding-top: 14px;
}

.news-index__title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.news-index__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 12px;
}

.news-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px;
  border-left: 2px solid transparent;
  color: var(--silver);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.news-index__link:hover,
.news-index__link:focus-visible {
  color: var(--white);
  border-left-color: var(--lime);
  background: var(--surface);
}

.news-index__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.news-index__foot {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

/* 时间线 */
.news-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 5vw, 60px);
  min-width: 0;
}

.tl {
  position: relative;
  padding-left: clamp(16px, 3vw, 30px);
  border-left: 2px solid var(--line);
  transition: border-color 0.24s ease;
}

.tl::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--line);
  transition: background-color 0.24s ease, border-color 0.24s ease;
}

.tl.is-current {
  border-left-color: var(--lime);
}

.tl.is-current::before {
  border-color: var(--lime);
  background: var(--lime);
}

.tl__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
}

.tl__no {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.tl__time {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.tl__title {
  margin-top: 10px;
  font-size: clamp(22px, 3.6vw, 34px);
  max-width: 24ch;
}

.tl__text {
  margin-top: 12px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.tl__text--after {
  margin-top: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 14px;
}

.tl__text a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.tl__media {
  margin: 20px 0 0;
}

.tl__media img {
  width: 100%;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--surface);
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
}

.tl__media--portrait img {
  aspect-ratio: 10 / 13;
}

.tl__cap {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.tl__points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.tl__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.tl__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 2px;
  background: var(--lime);
}

.tl__points a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.tl__more {
  margin-top: 18px;
}

/* 特写条目：文字与竖图错位 */
.tl__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 3vw, 30px);
  margin-top: 4px;
}

.tl__split .tl__media {
  margin-top: 0;
}

.tl__split-text .btn {
  margin-top: 18px;
}

/* 订阅四步 */
.tl__steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.tl__step {
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 2px solid var(--lime);
}

.tl__step-no {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.tl__step h3 {
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.tl__step p {
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* 近期条目 */
.news-recent {
  padding-top: clamp(20px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.news-recent__title {
  font-size: clamp(22px, 3.4vw, 30px);
}

.news-recent__note {
  margin-top: 8px;
  font-size: 13px;
  color: var(--muted);
}

.news-feed {
  margin-top: 18px;
}

.news-feed__row {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 4px 12px;
  align-items: baseline;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}

.news-feed__row:hover {
  background: var(--surface);
}

.news-feed__no {
  grid-row: span 2;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.news-feed__title {
  font-size: 15px;
  line-height: 1.55;
  color: var(--white);
}

.news-feed__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
}

.news-feed__meta .tag {
  text-decoration: none;
}

/* 求助区 */
.news-help {
  margin-top: clamp(32px, 5vw, 64px);
  padding: clamp(28px, 5vw, 56px) 0;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.news-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.news-help__title {
  font-size: clamp(24px, 4vw, 38px);
  max-width: 20ch;
}

.news-help__text p {
  margin-top: 12px;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.news-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.news-help__meta {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
  word-break: break-word;
}

/* 桌面与平板 */
@media (min-width: 720px) {
  .tl__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .news-feed__row {
    grid-template-columns: 2.6rem minmax(0, 1fr) auto;
    align-items: center;
  }

  .news-feed__no {
    grid-row: auto;
  }

  .news-feed__meta {
    justify-content: flex-end;
  }
}

@media (min-width: 780px) {
  .tl__split {
    grid-template-columns: minmax(0, 1fr) minmax(200px, 320px);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .news-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 340px);
    align-items: end;
  }

  .news-shell {
    grid-template-columns: var(--news-idx) minmax(0, 1fr);
    align-items: start;
  }

  .news-index {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .news-help__grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .news-help__side {
    text-align: right;
  }

  .news-help__actions {
    justify-content: flex-end;
  }
}

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