.page-news {
  --news-hairline: rgba(79, 240, 210, 0.32);
  --news-rule: rgba(34, 48, 58, 0.12);
  --news-dark-rule: rgba(232, 237, 240, 0.16);
  --news-radius: var(--r-md);
  background: var(--silver-100);
  color: var(--ink);
}

.page-news .breadcrumbs {
  padding-block: 18px 4px;
}

/* ---------- 首屏 ---------- */
.page-news .topics-hero {
  padding-top: 12px;
}

.page-news .topics-hero__box {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--r-lg);
  padding: clamp(34px, 6vw, 72px) clamp(22px, 5vw, 64px);
  background:
    radial-gradient(120% 140% at 88% 10%, rgba(79, 240, 210, 0.22), transparent 58%),
    linear-gradient(142deg, var(--teal-900) 0%, var(--teal-700) 52%, var(--indigo) 100%);
  color: var(--silver-050);
}

.page-news .topics-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  z-index: -1;
}

.page-news .topics-hero__content {
  max-width: 780px;
}

.page-news .topics-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .topics-hero__title {
  margin: 0;
  font-size: clamp(30px, 5.6vw, var(--fs-64));
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.01em;
}

.page-news .topics-hero__lead {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: var(--fs-18);
  line-height: 1.85;
  color: rgba(246, 249, 250, 0.84);
}

.page-news .topics-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 章节标题 ---------- */
.page-news .section {
  padding-block: clamp(44px, 7vw, 92px);
}

.page-news .news-head {
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-news .news-head__num {
  display: inline-block;
  margin-bottom: 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--news-hairline);
  font-family: var(--font-mono);
  font-size: var(--fs-15);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--teal-700);
}

.page-news .news-head__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, var(--fs-32));
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-news .news-head__lead {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .news-head--dark .news-head__num {
  color: var(--cyan);
  border-bottom-color: rgba(79, 240, 210, 0.45);
}

.page-news .news-head--dark .news-head__title {
  color: var(--silver-050);
}

.page-news .news-head--dark .news-head__lead {
  color: rgba(232, 237, 240, 0.78);
}

/* ---------- 01 本期导读 ---------- */
.page-news .news-lead__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
}

.page-news .news-lead__text {
  margin: 18px 0 0;
  font-size: var(--fs-18);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .news-lead__text + .news-lead__text {
  margin-top: 14px;
}

.page-news .news-lead__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .news-lead__item {
  padding: 18px 20px 20px;
  border-radius: var(--news-radius);
  border: 1px solid var(--news-rule);
  background: var(--silver-050);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .news-lead__item:hover {
  border-color: var(--news-hairline);
  transform: translateY(-2px);
}

.page-news .news-lead__tag {
  display: inline-block;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  background: rgba(79, 240, 210, 0.16);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--teal-800);
}

.page-news .news-lead__link {
  display: block;
  margin-top: 12px;
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.5;
  color: var(--teal-900);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}

.page-news .news-lead__link:hover {
  border-bottom-color: var(--orange);
}

.page-news .news-lead__desc {
  margin: 8px 0 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 02 专题索引 ---------- */
.page-news .news-topics {
  background: linear-gradient(180deg, var(--silver-100) 0%, var(--silver-050) 100%);
}

.page-news .news-topics__grid {
  display: grid;
  gap: 18px;
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--news-rule);
  background: var(--white);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-news .topic-card:hover {
  border-color: var(--news-hairline);
  transform: translateY(-4px);
  box-shadow: 0 22px 44px -30px rgba(14, 59, 69, 0.7);
}

.page-news .topic-card__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--teal-800);
}

.page-news .topic-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .topic-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 10px;
  padding: 20px 22px 24px;
}

.page-news .topic-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-news .topic-card__title {
  margin: 0;
  font-size: var(--fs-24);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--teal-900);
}

.page-news .topic-card__count {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-15);
  font-weight: 600;
  color: var(--orange);
  white-space: nowrap;
}

.page-news .topic-card__desc {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .topic-card__meta {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--news-rule);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--teal-700);
}

/* ---------- 03 公告清单 ---------- */
.page-news .news-issues__panel {
  padding: clamp(26px, 4.5vw, 56px);
  border-radius: var(--r-lg);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(79, 240, 210, 0.14), transparent 60%),
    linear-gradient(160deg, var(--indigo) 0%, var(--indigo-deep) 100%);
  color: var(--silver-050);
}

.page-news .news-issues__layout {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-news .digest {
  border-top: 1px solid var(--news-dark-rule);
}

.page-news .digest:last-child {
  border-bottom: 1px solid var(--news-dark-rule);
}

.page-news .digest__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 15px 8px;
  border-radius: var(--r-sm);
  cursor: pointer;
  list-style: none;
  transition: background 0.2s var(--ease);
}

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

.page-news .digest__summary:hover {
  background: rgba(79, 240, 210, 0.08);
}

.page-news .digest__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .digest__no {
  font-family: var(--font-mono);
  font-size: var(--fs-15);
  font-weight: 600;
  color: var(--cyan);
  white-space: nowrap;
}

.page-news .digest__name {
  font-size: var(--fs-15);
  font-weight: 600;
  line-height: 1.5;
  color: var(--silver-050);
}

.page-news .digest__chev {
  justify-self: end;
  width: 9px;
  height: 9px;
  margin-right: 4px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
}

.page-news .digest[open] .digest__chev {
  transform: rotate(-135deg);
}

.page-news .digest__body {
  padding: 2px 8px 20px;
}

.page-news .digest__points {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: var(--fs-15);
  line-height: 1.75;
  color: rgba(232, 237, 240, 0.82);
}

.page-news .digest__points li::marker {
  color: var(--gold);
}

.page-news .digest__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-news .news-issues .tag {
  padding: 3px 10px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(79, 240, 210, 0.35);
  background: transparent;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--cyan);
  white-space: nowrap;
}

.page-news .news-issues__aside {
  align-self: start;
}

.page-news .news-issues__figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--news-radius);
  border: 1px solid rgba(79, 240, 210, 0.35);
  background: var(--indigo-deep);
}

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

.page-news .news-issues__caption {
  margin: 12px 0 18px;
  font-size: var(--fs-12);
  line-height: 1.75;
  color: rgba(232, 237, 240, 0.7);
}

/* ---------- 04 归档说明 ---------- */
.page-news .news-archive__panel {
  padding: clamp(26px, 4.5vw, 56px);
  border-radius: var(--r-lg);
  border: 1px solid var(--news-hairline);
  background:
    radial-gradient(80% 120% at 0% 0%, rgba(255, 106, 43, 0.14), transparent 55%),
    linear-gradient(150deg, var(--wine) 0%, var(--wine-deep) 100%);
  color: var(--silver-050);
}

.page-news .news-archive .news-head__num {
  color: var(--cyan);
  border-bottom-color: rgba(79, 240, 210, 0.45);
}

.page-news .news-archive .news-head__title {
  color: var(--silver-050);
}

.page-news .news-archive__text {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: var(--fs-18);
  line-height: 1.85;
  color: rgba(232, 237, 240, 0.86);
}

.page-news .news-archive__facts {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}

.page-news .news-archive__fact {
  padding: 16px 18px;
  border-radius: var(--news-radius);
  border: 1px solid rgba(232, 237, 240, 0.18);
  background: rgba(246, 249, 250, 0.08);
}

.page-news .news-archive__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-24);
  font-weight: 600;
  color: var(--gold);
}

.page-news .news-archive__label {
  font-size: var(--fs-15);
  line-height: 1.7;
  color: rgba(232, 237, 240, 0.85);
}

.page-news .news-archive__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 05 更新节奏 ---------- */
.page-news .news-cadence__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

.page-news .news-cadence__text {
  margin: 18px 0 0;
  font-size: var(--fs-18);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .news-cadence__cards {
  display: grid;
  gap: 16px;
}

.page-news .cadence-card {
  padding: 22px 22px 24px;
  border-radius: var(--news-radius);
  border: 1px solid var(--news-rule);
  border-left: 3px solid var(--cyan);
  background: var(--white);
}

.page-news .cadence-card__title {
  margin: 0 0 10px;
  font-size: var(--fs-18);
  font-weight: 800;
  line-height: 1.4;
  color: var(--teal-900);
}

.page-news .cadence-card__desc {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-cadence__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(22px, 3vw, 32px);
  border-radius: var(--news-radius);
  background: linear-gradient(120deg, var(--teal-900) 0%, var(--teal-800) 100%);
  color: var(--silver-050);
}

.page-news .news-cadence__cta-text {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: rgba(246, 249, 250, 0.86);
}

.page-news .news-cadence__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .news-cadence__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-archive__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news .news-topics__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-news .news-lead__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .news-cadence__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .topic-card:nth-child(even) {
    margin-top: 44px;
  }
}

@media (min-width: 960px) {
  .page-news .news-issues__layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-news .news-issues__aside {
    position: sticky;
    top: 24px;
  }
}

@media (min-width: 1080px) {
  .page-news .news-topics__grid {
    gap: 28px;
  }

  .page-news .news-head__lead {
    font-size: var(--fs-18);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-card,
  .page-news .news-lead__item,
  .page-news .digest__chev,
  .page-news .news-lead__link {
    transition: none;
  }

  .page-news .topic-card:hover,
  .page-news .news-lead__item:hover {
    transform: none;
  }
}