.page-news {
  --news-block: clamp(56px, 9vw, 118px);
  --news-hair: 1px solid var(--fh-iron);
  --news-loose: clamp(18px, 2.6vw, 30px);
}

/* ---------- 面包屑 ---------- */
.page-news .fh-breadcrumb {
  padding-top: 18px;
  padding-bottom: 4px;
}
.page-news .fh-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fh-mist);
}
.page-news .fh-breadcrumb__item a {
  color: var(--fh-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--fh-ease), border-color .25s var(--fh-ease);
}
.page-news .fh-breadcrumb__item a:hover {
  color: var(--fh-cyan);
  border-bottom-color: var(--fh-cyan);
}
.page-news .fh-breadcrumb__item[aria-current="page"] { color: var(--fh-bone); }
.page-news .fh-breadcrumb__sep { color: var(--fh-iron); }

/* ---------- 左缘坐标索引 ---------- */
.page-news .news-rail { display: none; }

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-top: clamp(26px, 4.4vw, 54px);
  padding-bottom: var(--news-block);
  overflow: hidden;
}
.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: -10% -6% 30% -6%;
  background:
    radial-gradient(58% 62% at 86% 4%, rgba(255, 90, 31, .26), transparent 62%),
    radial-gradient(52% 58% at 4% 82%, rgba(47, 224, 214, .13), transparent 66%);
  pointer-events: none;
  z-index: 0;
}
.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
}
.page-news .news-hero__title {
  margin: 12px 0 0;
  transform: skewX(-5deg);
  transform-origin: left bottom;
  text-wrap: balance;
}
.page-news .news-hero__lede {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 44em;
  color: var(--fh-bone);
  opacity: .88;
}

.page-news .news-hero__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--fh-iron);
  border: var(--news-hair);
}
.page-news .news-hero__metrics li {
  background: var(--fh-carbon);
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.page-news .news-hero__num {
  color: var(--fh-flame);
  font-size: clamp(1.6rem, 5vw, 2.4rem);
  line-height: 1;
}
.page-news .news-hero__unit {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--fh-mist);
}

.page-news .news-hero__media {
  margin: clamp(34px, 5vw, 62px) 0 0;
  border: var(--news-hair);
  border-left: 3px solid var(--fh-ember);
}
.page-news .news-hero__media .fh-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.9) contrast(1.06);
}

/* ---------- 通用章节 ---------- */
.page-news .fh-section {
  padding-block: var(--news-block);
  border-top: var(--news-hair);
}
.page-news .fh-section h2 {
  margin: 10px 0 0;
  font-size: clamp(1.6rem, 4.4vw, 2.9rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--fh-bone);
  text-wrap: balance;
}
.page-news .fh-prose { margin: 16px 0 0; color: var(--fh-mist); }

/* ---------- 01 栏目索引 ---------- */
.page-news .news-index__lede { max-width: 40em; }

.page-news .news-index__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--fh-iron);
  border: var(--news-hair);
}
.page-news .news-index__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "no name"
    "no cat"
    "no freq";
  gap: 4px 16px;
  min-height: 100%;
  padding: 20px 18px 22px;
  background: var(--fh-carbon);
  border-left: 2px solid transparent;
  text-decoration: none;
  transition: background .25s var(--fh-ease), border-color .25s var(--fh-ease), transform .25s var(--fh-ease);
}
.page-news .news-index__link:hover,
.page-news .news-index__link:focus-visible {
  background: var(--fh-ink);
  border-left-color: var(--fh-cyan);
}
.page-news .news-index__no {
  grid-area: no;
  font-size: 1.05rem;
  color: var(--fh-iron);
  transition: color .25s var(--fh-ease);
}
.page-news .news-index__link:hover .news-index__no { color: var(--fh-cyan); }
.page-news .news-index__name {
  grid-area: name;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fh-bone);
}
.page-news .news-index__cat {
  grid-area: cat;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fh-mist);
}
.page-news .news-index__freq {
  grid-area: freq;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--fh-cyan);
  opacity: .42;
  transition: opacity .25s var(--fh-ease);
}
.page-news .news-index__link:hover .news-index__freq { opacity: 1; }

.page-news .news-index__item--lead .news-index__link {
  background:
    linear-gradient(158deg, rgba(255, 90, 31, .18), rgba(194, 21, 27, .09) 58%, transparent 100%),
    var(--fh-carbon);
  border-left-color: var(--fh-flame);
}
.page-news .news-index__item--lead .news-index__no { color: var(--fh-flame); }
.page-news .news-index__item--lead .news-index__cat { color: var(--fh-amber); }
.page-news .news-index__item--lead .news-index__freq { opacity: 1; }

/* ---------- 02 更新条目 ---------- */
.page-news .news-timeline__lede { max-width: 40em; }

.page-news .news-feed {
  margin: clamp(30px, 4.4vw, 52px) 0 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid var(--fh-iron);
}
.page-news .news-feed__row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(42, 47, 54, .72);
  transition: background .25s var(--fh-ease);
}
.page-news .news-feed__row::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 30px;
  width: 7px;
  height: 7px;
  background: var(--fh-flame);
  transition: background .25s var(--fh-ease), transform .25s var(--fh-ease);
}
.page-news .news-feed__row:hover::before,
.page-news .news-feed__row:focus-within::before {
  background: var(--fh-cyan);
  transform: scale(1.35);
}
.page-news .news-feed__row:nth-child(n+7) { padding-block: 30px; }
.page-news .news-feed__row:nth-child(n+9) { padding-block: 42px; }

.page-news .news-feed__no {
  font-size: .95rem;
  color: var(--fh-iron);
  letter-spacing: .12em;
}
.page-news .news-feed__title {
  margin: 0;
  font-size: clamp(1.02rem, 2.6vw, 1.24rem);
  line-height: 1.42;
  color: var(--fh-bone);
}
.page-news .news-feed__desc {
  margin: 8px 0 0;
  max-width: 46em;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--fh-mist);
}
.page-news .news-feed__meta {
  margin: 10px 0 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--fh-mist);
  opacity: .45;
  transition: opacity .25s var(--fh-ease), color .25s var(--fh-ease);
}
.page-news .news-feed__row:hover .news-feed__meta,
.page-news .news-feed__row:focus-within .news-feed__meta {
  opacity: 1;
  color: var(--fh-cyan);
}
.page-news .news-feed__tag {
  justify-self: start;
  align-self: start;
  border: 1px solid rgba(47, 224, 214, .45);
  color: var(--fh-cyan);
  background: transparent;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: .16em;
  white-space: nowrap;
}

/* ---------- 03 长期专题 ---------- */
.page-news .news-topics__layout {
  margin-top: clamp(28px, 4vw, 48px);
  gap: var(--news-loose);
}
.page-news .news-topics__list {
  display: flex;
  flex-direction: column;
}
.page-news .news-topic {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 18px;
  padding: 22px 0;
  border-top: var(--news-hair);
}
.page-news .news-topic:last-child { border-bottom: var(--news-hair); }
.page-news .news-topic__no {
  font-size: 1rem;
  color: var(--fh-ember);
}
.page-news .news-topic__name {
  margin: 0;
  font-size: clamp(1.08rem, 2.8vw, 1.32rem);
  color: var(--fh-bone);
  letter-spacing: .01em;
}
.page-news .news-topic__text {
  margin: 10px 0 0;
  max-width: 42em;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--fh-mist);
}
.page-news .news-topic__cadence {
  margin: 12px 0 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--fh-amber);
}
.page-news .news-topics__media {
  margin: 0;
  border: var(--news-hair);
  border-bottom: 3px solid var(--fh-teal);
  align-self: start;
}
.page-news .news-topics__media .fh-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.08) saturate(.92);
}

/* ---------- 04 数字怎么读 ---------- */
.page-news .news-insights__lede { max-width: 40em; }

.page-news .news-insights__strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  background: var(--fh-iron);
  border: var(--news-hair);
}
.page-news .news-insight {
  background: var(--fh-ink);
  padding: 24px 20px 28px;
  position: relative;
}
.page-news .news-insight::after {
  content: "";
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fh-flame), var(--fh-cyan));
  transform: scaleX(.22);
  transform-origin: left;
  transition: transform .35s var(--fh-ease);
}
.page-news .news-insight:hover::after { transform: scaleX(1); }
.page-news .news-insight__name {
  margin: 0;
  font-size: 1.06rem;
  color: var(--fh-bone);
}
.page-news .news-insight__text {
  margin: 12px 0 0;
  font-size: .93rem;
  line-height: 1.8;
  color: var(--fh-mist);
}

.page-news .news-insights__media {
  margin: clamp(30px, 4.4vw, 54px) 0 0;
  border-left: 3px solid var(--fh-cyan);
}
.page-news .news-insights__media .fh-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) brightness(.9);
}

/* ---------- 05 栏目迭代 ---------- */
.page-news .news-iterations__layout {
  margin-top: clamp(28px, 4vw, 48px);
  gap: var(--news-loose);
}
.page-news .news-iterations__body .fh-prose { max-width: 42em; }
.page-news .news-iterations__body .fh-prose + .fh-prose { margin-top: 18px; }

.page-news .news-iterations__steps {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--news-hair);
}
.page-news .news-iterations__steps li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: var(--news-hair);
}
.page-news .news-iterations__stage {
  font-size: .92rem;
  letter-spacing: .14em;
  color: var(--fh-flame);
}
.page-news .news-iterations__desc {
  font-size: .93rem;
  line-height: 1.75;
  color: var(--fh-mist);
}
.page-news .news-iterations__note { margin-top: 22px; }

.page-news .news-iterations__media {
  margin: 0;
  border: var(--news-hair);
  align-self: start;
  position: relative;
  overflow: hidden;
}
.page-news .news-iterations__media .fh-media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.12) brightness(.86);
}
.page-news .news-iterations__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 40%;
  background: linear-gradient(180deg, transparent, rgba(194, 21, 27, .42));
  pointer-events: none;
}

/* ---------- 06 订阅跟进 ---------- */
.page-news .news-follow__lede { max-width: 42em; }

.page-news .news-follow__paths {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: clamp(28px, 4vw, 48px) 0 0;
}
.page-news .news-follow__card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 14px;
  padding: 20px 18px 22px;
  text-decoration: none;
  border-top: 2px solid var(--fh-teal);
}
.page-news .news-follow__card .fh-pathcard__label {
  font-size: 1.04rem;
  font-weight: 700;
  color: var(--fh-bone);
}
.page-news .news-follow__card .fh-pathcard__desc {
  grid-column: 1 / 2;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--fh-mist);
}
.page-news .news-follow__card .fh-pathcard__arrow {
  grid-row: 1 / 3;
  grid-column: 2 / 3;
  align-self: center;
  font-size: 1.2rem;
  color: var(--fh-cyan);
  transition: transform .25s var(--fh-ease);
}
.page-news .news-follow__card:hover .fh-pathcard__arrow { transform: translateX(5px); }
.page-news .news-follow__card.fh-pathcard--hot { border-top-color: var(--fh-flame); }
.page-news .news-follow__card.fh-pathcard--hot .fh-pathcard__arrow { color: var(--fh-flame); }

.page-news .news-follow__meta {
  margin: clamp(26px, 3.6vw, 40px) 0 0;
  max-width: 44em;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--fh-mist);
}
.page-news .news-follow__meta a {
  color: var(--fh-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 214, .4);
  transition: color .25s var(--fh-ease), border-color .25s var(--fh-ease);
}
.page-news .news-follow__meta a:hover {
  color: var(--fh-amber);
  border-bottom-color: var(--fh-amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .news-hero__metrics { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-news .news-index__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-news .news-insights__strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-news .news-follow__paths { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-news .news-iterations__steps li {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 860px) {
  .page-news .news-feed__row {
    grid-template-columns: 84px minmax(0, 1fr) 128px;
    align-items: start;
    gap: 6px 22px;
  }
  .page-news .news-feed__tag { justify-self: end; }
  .page-news .news-feed__no { padding-top: 2px; }
}

@media (min-width: 1040px) {
  .page-news .news-index__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-news .news-index__link { padding: 24px 22px 26px; }
  .page-news .news-topic { padding: 26px 0; }
}

@media (min-width: 1280px) {
  .page-news .news-rail {
    display: flex;
    position: fixed;
    left: max(10px, calc((100vw - var(--fh-wrap)) / 2 - 66px));
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    flex-direction: column;
    gap: 14px;
    padding: 0;
  }
  .page-news .news-rail .fh-rail__item {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--fh-mist);
    transition: color .25s var(--fh-ease);
  }
  .page-news .news-rail .fh-rail__dot {
    width: 10px;
    height: 1px;
    background: var(--fh-iron);
    transition: background .25s var(--fh-ease), width .25s var(--fh-ease);
  }
  .page-news .fh-rail__label {
    font-size: 11px;
    letter-spacing: .2em;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity .25s var(--fh-ease), transform .25s var(--fh-ease);
  }
  .page-news .news-rail .fh-rail__item:hover .fh-rail__label,
  .page-news .news-rail .fh-rail__item:focus-visible .fh-rail__label { opacity: 1; transform: translateX(0); }
  .page-news .news-rail .fh-rail__item:hover .fh-rail__dot { background: var(--fh-cyan); width: 18px; }
  .page-news .news-rail .fh-rail__item.is-active .fh-rail__dot { background: var(--fh-flame); width: 22px; }
  .page-news .news-rail .fh-rail__item.is-active .fh-rail__label { opacity: 1; transform: translateX(0); color: var(--fh-flame); }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-hero__title { transform: none; }
  .page-news .news-index__link,
  .page-news .news-feed__row::before,
  .page-news .news-insight::after,
  .page-news .news-follow__card .fh-pathcard__arrow {
    transition: none;
  }
}
</main>