.page-news {
  --news-line: rgba(140, 153, 173, 0.22);
  --news-line-soft: rgba(140, 153, 173, 0.12);
  display: block;
  padding-bottom: clamp(2rem, 6vw, 5rem);
}

/* ---------- 页面头部 ---------- */
.page-news .news-mast {
  padding: clamp(1.25rem, 4vw, 2.75rem) 0 clamp(1.75rem, 4vw, 2.75rem);
  border-bottom: 2px solid var(--rock);
}

.page-news .news-mast .breadcrumb {
  margin: 0 0 1.35rem;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-news .news-mast__title {
  margin: 0.55rem 0 1rem;
  font-size: clamp(1.9rem, 5.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
  max-width: 18ch;
}

.page-news .news-mast__lede {
  margin: 0;
  max-width: 48ch;
  color: var(--body-soft);
}

.page-news .news-mast__meta {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.6rem;
  font-size: 13px;
  color: var(--body-soft);
}

.page-news .news-mast__meta li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-news .news-mast__meta li::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 2px solid var(--orange);
}

.page-news .news-mast__key {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-transform: uppercase;
}

/* ---------- 首条专题卡 ---------- */
.page-news .news-lead {
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  display: grid;
  background: var(--ink-2);
  border: 2px solid var(--rock);
  box-shadow: var(--shadow);
}

.page-news .news-lead__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  min-height: 200px;
  background: var(--ink-3);
}

.page-news .news-lead__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
}

.page-news .news-lead__media figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 0.4rem 0.85rem;
  background: var(--orange);
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-news .news-lead__body {
  padding: clamp(1.15rem, 3.5vw, 2.25rem);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-news .news-lead__title {
  margin: 0;
  font-size: clamp(1.2rem, 3.2vw, 1.7rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--paper);
}

.page-news .news-lead__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-news .news-lead__points {
  list-style: none;
  margin: 0.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-news .news-lead__points li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-news .news-lead__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.85rem;
  height: 2px;
  background: var(--orange);
}

.page-news .news-lead__foot {
  margin-top: auto;
  padding-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 通用区块 ---------- */
.page-news .news-section {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-news .news-section__title {
  margin: 0.45rem 0 0.9rem;
  font-size: clamp(1.22rem, 3.2vw, 1.85rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--paper);
}

/* ---------- 变更点清单 ---------- */
.page-news .news-changes {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .news-changes__intro {
  margin: 0 0 1.4rem;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-news .news-changes__figure {
  margin: 0;
}

.page-news .news-changes__figure img,
.page-news .news-fit__media img,
.page-news .news-notes__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .seg__btn {
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-news .chg-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .chg-list li {
  position: relative;
  padding: 0.95rem 0 0.95rem 1.65rem;
  border-bottom: 1px solid var(--news-line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--body-soft);
}

.page-news .chg-list li:first-child {
  border-top: 1px solid var(--news-line);
}

.page-news .chg-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.5rem;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.14);
}

/* ---------- 适配说明 ---------- */
.page-news .news-fit__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .news-fit__text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-news .news-fit__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--rock);
  align-self: start;
}

.page-news .news-fit__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.9rem;
  padding: 0.9rem 0.25rem;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-fit__dev {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .news-fit__sys {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .news-tag {
  margin-left: auto;
  padding: 0.15rem 0.5rem;
  border: 1px solid currentColor;
  font-size: 11px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  line-height: 1.5;
}

.page-news .news-tag--ok {
  color: var(--moss);
}

.page-news .news-tag--warn {
  color: var(--clay);
}

.page-news .news-tag--note {
  color: var(--cyan);
}

.page-news .news-fit__media {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
}

/* ---------- 观察笔记 ---------- */
.page-news .news-notes__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .news-notes__intro {
  margin: 0 0 1.6rem;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-news .news-notes {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.5rem;
  border-left: 2px solid var(--rock);
  display: grid;
  gap: 1.6rem;
}

.page-news .news-notes__item {
  position: relative;
}

.page-news .news-notes__item::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 0.42rem;
  transform: translateX(-50%);
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--orange);
}

.page-news .news-notes__time {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 11px;
  letter-spacing: 0.09em;
  color: var(--gold);
}

.page-news .news-notes__item h3 {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-news .news-notes__item p {
  margin: 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-soft);
}

.page-news .news-notes__figure {
  margin: 0;
  align-self: start;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series__intro {
  margin: 0 0 1.4rem;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-news .news-series {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--rock);
}

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

.page-news .news-series__link {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: 0.3rem 0.9rem;
  padding: 1.05rem 0.5rem;
  text-decoration: none;
  color: inherit;
  border-left: 2px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .news-series__link:hover,
.page-news .news-series__link:focus-visible {
  background: var(--ink-2);
  border-left-color: var(--orange);
  transform: translateX(3px);
}

.page-news .news-series__num {
  grid-row: 1 / 3;
  padding-top: 0.1rem;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-news .news-series__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .news-series__desc {
  font-size: 13px;
  line-height: 1.62;
  color: var(--mist);
}

/* ---------- 回访提示 ---------- */
.page-news .news-return__panel {
  position: relative;
  padding: clamp(1.4rem, 4vw, 2.75rem);
  background-color: var(--ink-2);
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.07) 1px, transparent 1px);
  background-size: 24px 24px;
  border: 2px solid var(--orange);
  box-shadow: var(--shadow-hard);
}

.page-news .news-return__text {
  margin: 0;
  max-width: 50ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-news .news-return__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.4rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-news .news-mast__title {
    max-width: 22ch;
  }

  .page-news .news-fit__list {
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-news .news-lead {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-news .news-lead__media {
    min-height: 100%;
  }

  .page-news .news-lead__media img {
    min-height: 100%;
  }

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

  .page-news .news-notes__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-news .news-changes {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-return__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2rem;
    align-items: center;
  }

  .page-news .news-return__actions {
    margin-top: 0;
    flex-direction: column;
    align-items: stretch;
    min-width: 12rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-series__link {
    transition: none;
  }

  .page-news .news-series__link:hover,
  .page-news .news-series__link:focus-visible {
    transform: none;
  }
}