.page-news {
  position: relative;
}

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

/* ── 首屏简报头 ── */
.page-news .brief-masthead {
  position: relative;
  padding: clamp(24px, 5vw, 52px) 0 clamp(22px, 4vw, 36px);
  overflow: hidden;
}

.page-news .brief-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px;
  -webkit-mask-image: radial-gradient(130% 85% at 18% 0%, #000 0%, transparent 74%);
  mask-image: radial-gradient(130% 85% at 18% 0%, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-news .brief-masthead > .container {
  position: relative;
  z-index: 1;
}

.page-news .brief-masthead .breadcrumb {
  margin-bottom: clamp(20px, 3.4vw, 32px);
}

.page-news .brief-masthead .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-news .brief-masthead .breadcrumb a {
  color: var(--sage);
  text-decoration: none;
  transition: color 0.16s var(--ease);
}

.page-news .brief-masthead .breadcrumb a:hover,
.page-news .brief-masthead .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-news .brief-masthead .breadcrumb li[aria-current] {
  color: var(--mist);
}

.page-news .brief-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .brief-kicker::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  flex: 0 0 auto;
}

.page-news .brief-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.6rem, 11vw, 5.6rem);
  line-height: 0.94;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-news .brief-lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 46ch;
  font-size: clamp(0.96rem, 2.3vw, 1.1rem);
  line-height: 1.75;
  color: var(--sage);
}

/* ── 标签轨道 ── */
.page-news .brief-track {
  display: flex;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-news .brief-track::-webkit-scrollbar {
  height: 2px;
}

.page-news .brief-track::-webkit-scrollbar-thumb {
  background: var(--line-strong);
}

.page-news .brief-track > li {
  flex: 0 0 auto;
}

.page-news .brief-track a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 152px;
  padding: 15px 20px 17px 16px;
  border-left: 2px solid var(--proj, var(--cyan));
  color: var(--mist);
  text-decoration: none;
  transition: background 0.16s var(--ease), color 0.16s var(--ease);
}

.page-news .brief-track a.track--v { --proj: var(--cyan); }
.page-news .brief-track a.track--a { --proj: var(--gold); }
.page-news .brief-track a.track--c { --proj: var(--orange); }
.page-news .brief-track a.track--o { --proj: var(--violet); }

.page-news .brief-track a:hover,
.page-news .brief-track a:focus-visible {
  background: rgba(53, 242, 208, 0.08);
}

.page-news .track-name {
  font-size: 0.95rem;
  font-weight: 500;
}

.page-news .track-count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--sage);
}

/* ── 版块通用 ── */
.page-news .brief-band {
  padding-top: clamp(28px, 4vw, 42px);
}

.page-news .brief-band--list {
  padding-top: clamp(40px, 6vw, 72px);
}

.page-news .brief-block--archive { --proj: var(--gold); }
.page-news .brief-block--clips { --proj: var(--orange); }
.page-news .brief-block--observe { --proj: var(--violet); }

.page-news .block-head {
  padding-top: 14px;
  padding-bottom: 14px;
  border-top: 2px solid var(--proj, var(--cyan));
  border-bottom: 1px solid var(--line-strong);
}

.page-news .block-index {
  margin: 0 0 8px;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-news .block-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.42rem, 3.6vw, 2.05rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-news .block-lead {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--sage);
}

/* ── 置顶版本说明 ── */
.page-news .version-note {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.6vw, 32px);
  padding: clamp(20px, 3.4vw, 36px);
  background: linear-gradient(155deg, rgba(53, 242, 208, 0.12), rgba(18, 62, 54, 0.55) 58%, rgba(11, 43, 38, 0.18));
  border-left: 3px solid var(--cyan);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .version-note__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.32rem, 4.2vw, 2rem);
  line-height: 1.35;
  color: var(--mist);
}

.page-news .version-note__title .mono {
  color: var(--cyan);
  white-space: nowrap;
}

.page-news .version-note__meta {
  margin: 10px 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--sage);
}

.page-news .version-note__lead {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .version-steps {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .version-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-news .step-no {
  font-size: 0.78rem;
  color: var(--cyan);
  padding-top: 2px;
}

.page-news .version-steps h3 {
  margin: 0 0 5px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--mist);
}

.page-news .version-steps p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--sage);
}

.page-news .version-note__foot {
  margin: 18px 0 0;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--sage);
}

.page-news .version-note__figure {
  margin: 0;
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-news .version-note__figure img {
  width: 100%;
  height: auto;
}

/* ── 简报条目列表 ── */
.page-news .notelist {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .notelist__item {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 0 14px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--line);
  transition: background 0.16s var(--ease);
}

.page-news .notelist__item::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 22px;
  bottom: 22px;
  width: 2px;
  background: var(--proj, var(--cyan));
  opacity: 0;
  transition: opacity 0.16s var(--ease);
}

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

.page-news .notelist__no {
  font-size: 0.78rem;
  color: var(--sage);
  padding-top: 3px;
}

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

.page-news .notelist__time {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--sage);
  padding-left: 10px;
  border-left: 1px solid var(--line-strong);
}

.page-news .notelist__title {
  margin: 12px 0 8px;
  font-size: clamp(1.04rem, 2.6vw, 1.3rem);
  font-weight: 500;
  line-height: 1.48;
  color: var(--mist);
  transition: color 0.16s var(--ease);
}

.page-news .notelist__item:hover .notelist__title {
  color: var(--cyan);
}

.page-news .notelist__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.76;
  color: var(--sage);
}

.page-news .notelist__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.16s var(--ease);
}

.page-news .notelist__link::after {
  content: "→";
  font-family: var(--font-mono);
}

.page-news .notelist__link:hover,
.page-news .notelist__link:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-news .notelist__media {
  grid-column: 1 / -1;
  position: relative;
  margin: 16px 0 0;
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-news .notelist__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ── 专题观察 ── */
.page-news .observe {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  padding-top: clamp(8px, 2vw, 18px);
}

.page-news .observe__media {
  position: relative;
  order: -1;
  margin: 0;
  border: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-news .observe__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .observe__piece h3 {
  margin: 0 0 10px;
  font-size: clamp(1.1rem, 2.8vw, 1.34rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--mist);
}

.page-news .observe__piece p {
  margin: 0 0 12px;
  max-width: 44ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--sage);
}

.page-news .observe__piece + .observe__piece {
  margin-top: clamp(22px, 3.4vw, 34px);
  padding-top: clamp(22px, 3.4vw, 34px);
  border-top: 1px solid var(--line);
}

/* ── 收尾入口 ── */
.page-news .brief-exit {
  margin-top: clamp(40px, 6vw, 80px);
  padding: clamp(28px, 5vw, 52px) 0 clamp(34px, 6vw, 64px);
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(18, 62, 54, 0.5), rgba(11, 43, 38, 0));
}

.page-news .exit-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-news .exit-lede {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--sage);
}

.page-news .exit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* ── 平板与桌面 ── */
@media (min-width: 760px) {
  .page-news .version-note {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-news .version-note__figure {
    align-self: stretch;
  }

  .page-news .version-note__figure img {
    height: 100%;
    object-fit: cover;
  }
}

@media (min-width: 900px) {
  .page-news .notelist__item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 0 26px;
    padding: 28px 0 30px;
  }

  .page-news .notelist__item::before {
    top: 28px;
    bottom: 30px;
  }

  .page-news .notelist__item--media {
    grid-template-columns: 64px minmax(0, 1fr) minmax(240px, 320px);
    gap: 0 30px;
  }

  .page-news .notelist__item--media .notelist__media {
    grid-column: 3;
    grid-row: 1;
    margin: 0;
    align-self: start;
  }

  .page-news .observe {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }

  .page-news .observe__media {
    order: 0;
    margin-top: 70px;
  }
}

@media (min-width: 1180px) {
  .page-news .brief-lede {
    max-width: 52ch;
  }

  .page-news .block-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    gap: 0 32px;
    align-items: end;
  }

  .page-news .block-index {
    grid-column: 1 / -1;
  }

  .page-news .block-lead {
    margin: 0;
    padding-bottom: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .brief-track a,
  .page-news .notelist__item,
  .page-news .notelist__item::before,
  .page-news .notelist__title,
  .page-news .notelist__link,
  .page-news .brief-masthead .breadcrumb a {
    transition: none;
  }
}