.page-news {
  --news-side: 190px;
  --news-gap: clamp(1.5rem, 4vw, 3.5rem);
  --news-block-pad: clamp(2.75rem, 8vw, 5rem);
  display: block;
  color: var(--text);
  background:
    radial-gradient(75% 45% at 90% 0%, rgba(124, 58, 237, .16), transparent 62%),
    linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 52%, var(--ink-950) 100%);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(3.25rem, 11vw, 7.5rem));
  padding-bottom: clamp(2.5rem, 7vw, 4.5rem);
}

.page-news .news-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  z-index: -2;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(110% 80% at 8% 14%, rgba(124, 58, 237, .48), transparent 62%),
    radial-gradient(85% 70% at 94% 84%, rgba(34, 211, 238, .20), transparent 60%),
    linear-gradient(180deg, rgba(5, 8, 23, .66) 0%, rgba(5, 8, 23, .9) 56%, var(--ink-950) 100%);
}

.page-news .news-hero__inner {
  position: relative;
  max-width: 1040px;
}

.page-news .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin: 0 0 clamp(1.4rem, 4vw, 2.4rem);
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--text-soft);
}

.page-news .crumbs a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-news .crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: currentColor;
}

.page-news .crumbs__sep {
  color: var(--line);
}

.page-news .news-hero__title {
  margin: .95rem 0 0;
  max-width: 17ch;
  font-size: clamp(1.9rem, 6.4vw, 4.15rem);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: .005em;
  color: #fff;
  text-wrap: balance;
}

.page-news .news-hero__lede {
  max-width: 58ch;
  margin: 1.4rem 0 0;
  font-size: clamp(.98rem, 2.2vw, 1.1rem);
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .news-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem 1.5rem;
  margin: clamp(2rem, 6vw, 3.25rem) 0 0;
  padding: clamp(1.4rem, 4vw, 1.9rem) 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-news .news-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  min-width: 0;
}

.page-news .news-hero__facts b {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.2vw, 1.95rem);
  font-weight: 600;
  letter-spacing: -.015em;
  color: var(--amber);
}

.page-news .news-hero__facts span {
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--text-dim);
}

/* ---------- 通用分区骨架 ---------- */

.page-news .news-block {
  padding-block: var(--news-block-pad);
  border-top: 1px solid var(--line);
}

.page-news .news-block__side {
  margin-bottom: clamp(1.25rem, 3.5vw, 1.75rem);
}

.page-news .news-block__title {
  margin: 0;
  font-size: clamp(1.4rem, 4vw, 2.05rem);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: .012em;
  color: #fff;
  text-wrap: balance;
}

.page-news .news-block__lede {
  max-width: 62ch;
  margin: 1rem 0 0;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .news-block__notes {
  margin-top: clamp(1.75rem, 5vw, 2.5rem);
}

.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 编辑台：分类条目 ---------- */

.page-news .channels {
  display: grid;
  gap: 0;
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
  list-style: none;
}

.page-news .channels__item {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: 1.15rem 0 1.25rem 1.1rem;
  border-left: 2px solid var(--line);
}

.page-news .channels__item--violet { border-left-color: var(--violet); }
.page-news .channels__item--cyan { border-left-color: var(--cyan); }
.page-news .channels__item--amber { border-left-color: var(--amber); }
.page-news .channels__item--magenta { border-left-color: var(--magenta); }

.page-news .channels__no {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.page-news .channels__name {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--text);
}

.page-news .channels__desc {
  margin: 0;
  font-size: .89rem;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-news .channels__freq {
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--cyan);
}

/* ---------- 更新流 ---------- */

.page-news .feed {
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
  list-style: none;
}

.page-news .feed__item {
  position: relative;
  padding: clamp(1.35rem, 4vw, 2.1rem) clamp(.85rem, 3vw, 1.5rem);
  border-top: 1px solid var(--line);
  transition: background-color .35s var(--ease);
}

.page-news .feed__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--violet), rgba(34, 211, 238, .35), transparent);
  opacity: 0;
  transition: opacity .35s var(--ease);
}

.page-news .feed__item:hover,
.page-news .feed__item:focus-within {
  background-color: rgba(124, 58, 237, .07);
}

.page-news .feed__item:hover::before,
.page-news .feed__item:focus-within::before {
  opacity: 1;
}

.page-news .feed__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem 1rem;
}

.page-news .feed__time {
  font-size: .73rem;
  letter-spacing: .06em;
  color: var(--text-soft);
}

.page-news .feed__title {
  margin: .8rem 0 0;
  max-width: 30ch;
  font-size: clamp(1.1rem, 3vw, 1.52rem);
  font-weight: 500;
  line-height: 1.34;
  letter-spacing: .01em;
  color: var(--text);
  transition: color .3s var(--ease);
}

.page-news .feed__item:hover .feed__title,
.page-news .feed__item:focus-within .feed__title {
  color: #fff;
}

.page-news .feed__desc {
  max-width: 62ch;
  margin: .75rem 0 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .feed__link {
  margin: .9rem 0 0;
}

.page-news .feed__link a {
  display: inline-block;
  font-size: .84rem;
  letter-spacing: .03em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .35);
  transition: border-color .25s var(--ease), color .25s var(--ease);
}

.page-news .feed__link a:hover {
  color: #fff;
  border-bottom-color: currentColor;
}

.page-news .feed__media {
  max-width: 620px;
  margin: 1.25rem 0 0;
}

/* ---------- 专题系列 ---------- */

.page-news .series {
  display: grid;
  gap: 1.75rem;
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
}

.page-news .series__item {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding-top: 1.1rem;
  border-top: 2px solid var(--line);
}

.page-news .series__item--violet { border-top-color: var(--violet); }
.page-news .series__item--cyan { border-top-color: var(--cyan); }
.page-news .series__item--amber { border-top-color: var(--amber); }
.page-news .series__item--magenta { border-top-color: var(--magenta); }

.page-news .series__no {
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--text-soft);
}

.page-news .series__name {
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.25rem);
  font-weight: 500;
  letter-spacing: .025em;
  color: #fff;
}

.page-news .series__desc {
  margin: 0;
  font-size: .89rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .series__link {
  align-self: flex-start;
  margin-top: .2rem;
  font-size: .84rem;
  letter-spacing: .04em;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-news .series__link::after {
  content: " →";
  color: var(--violet);
}

.page-news .series__link:hover {
  color: #fff;
  border-bottom-color: var(--cyan);
}

.page-news .series__media {
  margin: clamp(2rem, 5vw, 2.75rem) 0 0;
}

/* ---------- 口径修订记录 ---------- */

.page-news .log__media {
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
}

.page-news .log {
  margin-top: clamp(1.75rem, 5vw, 2.5rem);
  border-top: 1px solid var(--line);
}

.page-news .log__item {
  border-bottom: 1px solid var(--line);
}

.page-news .log__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .45rem 1rem;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
  transition: color .25s var(--ease);
}

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

.page-news .log__summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 1rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--violet);
  transition: color .25s var(--ease);
}

.page-news .log__item[open] .log__summary::after {
  content: "–";
  color: var(--cyan);
}

.page-news .log__summary:hover {
  color: #fff;
}

.page-news .log__no {
  font-size: .73rem;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-news .log__title {
  flex: 1 1 auto;
  min-width: 12ch;
  font-size: 1rem;
  letter-spacing: .015em;
  color: var(--text);
}

.page-news .log__time {
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--text-soft);
}

.page-news .log__body {
  max-width: 64ch;
  padding: 0 0 1.5rem;
}

.page-news .log__body p {
  margin: 0 0 .75rem;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .log__impact {
  font-size: .82rem !important;
  color: var(--text-dim) !important;
}

.page-news .log__impact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, .35);
}

.page-news .log__impact a:hover {
  color: #fff;
  border-bottom-color: currentColor;
}

/* ---------- 回看路径 ---------- */

.page-news .paths {
  display: grid;
  gap: 0;
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
  list-style: none;
}

.page-news .paths__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .25rem 1.1rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}

.page-news .paths__no {
  font-size: 1.5rem;
  line-height: 1.1;
  color: var(--violet);
  letter-spacing: -.02em;
}

.page-news .paths__body {
  min-width: 0;
}

.page-news .paths__name {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--text);
}

.page-news .paths__body p {
  max-width: 58ch;
  margin: .5rem 0 0;
  font-size: .89rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .go-list {
  display: grid;
  gap: 0;
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .go-list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: .35rem 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--text);
  transition: color .25s var(--ease);
}

.page-news .go-list a::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--violet);
  transition: transform .3s var(--ease), color .25s var(--ease);
}

.page-news .go-list a:hover {
  color: var(--cyan);
}

.page-news .go-list a:hover::after {
  transform: translateX(4px);
  color: var(--cyan);
}

.page-news .go-list b {
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: .03em;
}

.page-news .go-list span {
  font-size: .82rem;
  color: var(--text-soft);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-news .channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.5rem, 4vw, 3rem);
  }

  .page-news .series {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.75rem, 4vw, 3rem);
    row-gap: 2rem;
  }

  .page-news .news-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .go-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.75rem, 4vw, 3rem);
  }
}

@media (min-width: 980px) {
  .page-news .news-block {
    display: grid;
    grid-template-columns: var(--news-side) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }

  .page-news .news-block__side {
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--header-h) + 1.75rem);
  }

  .page-news .news-block__body {
    min-width: 0;
  }

  .page-news .feed__item {
    padding-inline: clamp(1rem, 3vw, 1.75rem);
  }
}

@media (min-width: 1180px) {
  .page-news .series {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    column-gap: 2rem;
  }
}

@media (max-width: 480px) {
  .page-news .news-hero__title {
    max-width: none;
  }

  .page-news .feed__item {
    padding-inline: 0;
  }

  .page-news .go-list a {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-news .go-list span {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .feed__item,
  .page-news .feed__item::before,
  .page-news .feed__title,
  .page-news .series__link,
  .page-news .crumbs a,
  .page-news .go-list a,
  .page-news .go-list a::after,
  .page-news .log__summary {
    transition: none;
  }

  .page-news .go-list a:hover::after {
    transform: none;
  }
}