.page-news {
  --news-panel: rgba(16, 31, 60, 0.78);
  --news-ink: #4A3B33;
  --news-rule: rgba(78, 107, 92, 0.42);
  padding-bottom: 40px;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: 18px 0 42px;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -14%;
  width: 58%;
  height: 230px;
  border-radius: var(--radius-lg);
  background: linear-gradient(118deg, rgba(53, 224, 214, 0.14), rgba(255, 106, 43, 0.18));
  transform: rotate(-4deg);
  pointer-events: none;
}

.page-news .news-hero__grid {
  position: relative;
  display: grid;
  gap: 26px;
}

.page-news .news-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(46px, 15vw, 118px);
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--cream);
}

.page-news .news-hero__title::after {
  content: "";
  display: block;
  width: 74px;
  height: 6px;
  margin-top: 20px;
  border-radius: var(--radius-pill);
  background: var(--neon);
}

.page-news .news-hero__dek {
  margin: 22px 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-news .news-hero__aside {
  border-top: 1px solid var(--news-rule);
  padding-top: 16px;
}

.page-news .news-hero__asideTitle {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-news .news-hero__facts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-news .news-fact {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.page-news .news-fact__k {
  color: var(--cyan);
  font-size: 14px;
  font-weight: 700;
}

.page-news .news-fact__v {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding: 26px 0 58px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 48px;
    align-items: end;
  }

  .page-news .news-hero__aside {
    border-top: 0;
    border-left: 1px solid var(--news-rule);
    padding: 6px 0 6px 26px;
  }
}

/* ---------- 置顶长文 ---------- */

.page-news .news-time {
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.page-news .feature-card {
  display: grid;
  margin-top: 6px;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius-lg);
  background: var(--deep-blue);
  box-shadow: var(--shadow-deep);
  overflow: hidden;
}

.page-news .feature-card__body {
  padding: 26px 22px 30px;
}

.page-news .feature-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
}

.page-news .feature-card__title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 6vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-news .feature-card__body p {
  margin: 0 0 14px;
  max-width: 44ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-news .feature-points {
  margin: 20px 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .feature-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-news .feature-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-news .feature-card__figure {
  margin: 0;
  aspect-ratio: 16 / 9;
}

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

@media (min-width: 980px) {
  .page-news .feature-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: stretch;
  }

  .page-news .feature-card__body {
    padding: 44px 40px 46px;
  }

  .page-news .feature-card__figure {
    aspect-ratio: auto;
    min-height: 320px;
  }
}

/* ---------- 条目列表 ---------- */

.page-news .news-board {
  display: grid;
  gap: 22px;
}

.page-news .news-board__railTitle {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-dim);
}

.page-news .news-filter {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-news .news-filter::-webkit-scrollbar {
  display: none;
}

.page-news .news-filter .filter-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.page-news .news-filter .filter-btn:hover {
  border-color: var(--amber);
  color: var(--cream);
}

.page-news .news-filter .filter-btn[aria-pressed="true"] {
  border-color: var(--neon);
  background: rgba(255, 106, 43, 0.14);
  color: var(--cream);
}

.page-news .news-filter .filter-btn .num {
  font-size: 12px;
  color: var(--cyan);
}

.page-news .news-filter .filter-btn[aria-pressed="true"] .num {
  color: var(--amber);
}

.page-news .topic-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--news-rule);
}

.page-news .topic-item {
  border-bottom: 1px solid var(--news-rule);
}

.page-news .topic-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding: 20px 2px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .topic-summary__title {
  order: 2;
  flex: 1 1 100%;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: -0.012em;
  color: var(--cream);
  transition: transform 0.18s ease, color 0.18s ease;
}

.page-news .topic-summary__time {
  order: 1;
  margin-left: auto;
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.page-news .topic-item:hover .topic-summary__title,
.page-news .topic-item:focus-within .topic-summary__title {
  transform: translateX(6px);
  color: var(--amber);
}

.page-news .topic-item--lead .topic-summary__title {
  font-size: 24px;
}

.page-news .topic-details[open] .topic-summary__title {
  color: var(--amber);
}

.page-news .topic-details__body {
  padding: 0 2px 24px;
  max-width: 62ch;
}

.page-news .topic-details__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-news .topic-details__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

@media (min-width: 800px) {
  .page-news .topic-summary {
    flex-wrap: nowrap;
    align-items: baseline;
    gap: 26px;
    padding: 26px 2px;
  }

  .page-news .topic-summary__title {
    order: 0;
    flex: 1 1 auto;
    font-size: 25px;
  }

  .page-news .topic-summary__time {
    order: 0;
    margin-left: 0;
    flex: 0 0 auto;
  }

  .page-news .topic-item--lead .topic-summary__title {
    font-size: 31px;
  }
}

@media (min-width: 960px) {
  .page-news .news-board {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .news-board__rail {
    position: sticky;
    top: 106px;
  }

  .page-news .news-filter {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-filter .filter-btn {
    justify-content: space-between;
    width: 100%;
    padding: 11px 18px;
  }
}

/* ---------- 三个长期系列 ---------- */

.page-news .series-grid {
  display: grid;
  gap: 22px;
  margin-top: 6px;
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--news-rule);
  border-radius: var(--radius-md);
  background: var(--news-panel);
  overflow: hidden;
}

.page-news .series-card__figure {
  margin: 0;
}

.page-news .series-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .series-card--square .series-card__figure img {
  aspect-ratio: 1 / 1;
}

.page-news .series-card__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
}

.page-news .series-card__body--plain {
  padding-top: 26px;
  border-top: 3px solid var(--cyan);
}

.page-news .series-card__body .tag {
  align-self: flex-start;
}

.page-news .series-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.32;
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-news .series-card__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-news .series-card__foot {
  margin-top: auto;
  padding-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

@media (min-width: 900px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-news .series-card:nth-child(2) {
    margin-top: 42px;
  }

  .page-news .series-card:nth-child(3) {
    margin-top: 18px;
  }
}

/* ---------- 旧版入口 ---------- */

.page-news .legacy-panel {
  display: grid;
  border-radius: var(--radius-lg);
  background: var(--cream);
  overflow: hidden;
}

.page-news .legacy-panel__text {
  padding: 30px 22px 34px;
}

.page-news .eyebrow--ink {
  color: #A8451A;
}

.page-news .legacy-panel__title {
  margin: 10px 0 16px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 6vw, 36px);
  line-height: 1.25;
  color: var(--warm-ink);
}

.page-news .legacy-panel__text p {
  margin: 0 0 14px;
  max-width: 40ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--news-ink);
}

.page-news .legacy-panel__text .btn {
  margin-top: 10px;
}

.page-news .legacy-panel__figure {
  margin: 0;
  aspect-ratio: 7 / 4;
}

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

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

  .page-news .legacy-panel__text {
    padding: 50px 46px 54px;
  }

  .page-news .legacy-panel__figure {
    aspect-ratio: auto;
    min-height: 300px;
  }
}

/* ---------- 收藏与回访 ---------- */

.page-news .keep-grid {
  display: grid;
  gap: 18px;
  margin-top: 6px;
}

.page-news .keep-step {
  padding: 24px 20px 26px;
  border-top: 3px solid var(--neon);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--news-panel);
}

.page-news .keep-step__no {
  margin: 0 0 12px;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--amber);
  letter-spacing: 0.04em;
}

.page-news .keep-step__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: -0.012em;
  color: var(--cream);
}

.page-news .keep-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-body);
}

.page-news .news-outro {
  margin-top: 34px;
  padding: 24px 20px 26px;
  border: 1px dashed var(--news-rule);
  border-radius: var(--radius-md);
  display: grid;
  gap: 18px;
}

.page-news .news-outro__text {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

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

@media (min-width: 860px) {
  .page-news .keep-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-news .keep-step:nth-child(2) {
    margin-top: 38px;
  }

  .page-news .news-outro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
    padding: 28px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-summary__title,
  .page-news .news-filter .filter-btn {
    transition: none;
  }
}