.page-news {
  --news-panel: rgba(16, 30, 46, 0.74);
  --news-sage-bg: rgba(126, 148, 134, 0.12);
  --news-sage-line: rgba(126, 148, 134, 0.42);
  --news-cyan-bg: rgba(53, 224, 208, 0.09);
  --news-amber-bg: rgba(245, 165, 36, 0.10);
  display: block;
}

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

.page-news .news-top {
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(26px, 4vw, 44px);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  margin-top: clamp(18px, 2.6vw, 30px);
  padding-bottom: clamp(24px, 3.4vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(240px, 42%);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(53, 224, 208, 0));
}

.page-news .news-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  font-size: clamp(28px, 5.2vw, 50px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 700;
  max-width: 22ch;
}

.page-news .news-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--fg-dim);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-news .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 12px;
  border-left: 2px solid var(--news-sage-line);
}

.page-news .hero-stat__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.01em;
}

.page-news .hero-stat__num span {
  margin-left: 6px;
  font-size: 13px;
  font-weight: 400;
  color: var(--fg-dim);
}

.page-news .hero-stat__label {
  font-size: 13.5px;
  color: var(--fg-dim);
}

.page-news .news-hero__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 主体双栏 ---------- */
.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 56px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

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

.page-news .news-main > section + section {
  margin-top: clamp(40px, 5.4vw, 68px);
}

.page-news .section-head {
  margin-bottom: 22px;
}

.page-news .news-index,
.page-news .news-feed,
.page-news .news-changes,
.page-news .news-topics,
.page-news .news-contact {
  min-width: 0;
}

/* ---------- 图片框 ---------- */
.page-news .news-figure,
.page-news .side-figure {
  margin: 0 0 clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-news .news-figure .media-frame__cap,
.page-news .side-figure .media-frame__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--fg-dim);
}

/* ---------- 分类索引网格 ---------- */
.page-news .cat-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .cat-card {
  background: var(--ink-800);
  min-width: 0;
}

.page-news .cat-card__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 18px 18px 20px;
  color: inherit;
  text-decoration: none;
}

.page-news .cat-card__band {
  display: block;
  width: 40px;
  height: 3px;
  background: var(--sage);
  transition: width var(--t-base) ease;
}

.page-news .cat-card__link:hover .cat-card__band,
.page-news .cat-card__link:focus-visible .cat-card__band {
  width: 76px;
}

.page-news .cat-card__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.02em;
}

.page-news .cat-card__count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--fg-dim);
}

.page-news .cat-card__count b {
  color: var(--amber);
  font-size: 15px;
  font-weight: 700;
}

.page-news .cat-card__desc {
  font-size: 14px;
  line-height: 1.68;
  color: var(--fg-dim);
}

.page-news .cat-card__go {
  margin-top: auto;
  padding-top: 6px;
  font-size: 13px;
  color: var(--link);
}

/* ---------- 版本条目列表 ---------- */
.page-news .feed-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .feed-item {
  position: relative;
  padding-left: 12px;
  border-bottom: 1px solid var(--line);
}

.page-news .feed-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--news-sage-line);
  transition: width var(--t-base) ease, background var(--t-base) ease;
}

.page-news .feed-item:hover::before {
  width: 6px;
  background: var(--sage);
}

.page-news .feed-entry__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: baseline;
  padding: 18px 16px 18px 12px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .feed-entry__ver {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-news .feed-entry__title {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
  font-weight: 600;
  color: var(--fg);
}

.page-news .feed-entry__tags {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .feed-entry__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
}

.page-news .feed-entry[open] .feed-entry__ver {
  color: var(--cyan-soft);
}

.page-news .feed-entry__body {
  margin: 0 16px 0 12px;
  padding: 16px 0 20px;
  border-top: 1px dashed var(--line);
}

.page-news .feed-meta {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-news .feed-meta dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-news .feed-meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--fg);
}

/* ---------- 分类调整公告 ---------- */
.page-news .change-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
}

.page-news .change-table__caption {
  caption-side: top;
  padding: 0 0 12px;
  text-align: left;
  font-size: 13px;
  color: var(--fg-dim);
}

.page-news .change-table th,
.page-news .change-table td {
  padding: 13px 14px;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
  line-height: 1.66;
  border-bottom: 1px solid var(--line);
}

.page-news .change-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage);
  white-space: nowrap;
  border-bottom-color: var(--news-sage-line);
}

.page-news .change-table td {
  color: var(--fg);
}

.page-news .change-table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--amber);
  white-space: nowrap;
}

.page-news .news-changes__note {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--news-sage-line);
  background: var(--news-sage-bg);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--fg-dim);
}

/* ---------- 侧栏 ---------- */
.page-news .news-side {
  min-width: 0;
  display: grid;
  gap: 22px;
}

.page-news .side-panel {
  border: 1px solid var(--line);
  background: var(--news-panel);
  padding: 20px 18px 22px;
}

.page-news .side-panel__title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--fg);
}

.page-news .side-panel__note {
  margin: 8px 0 18px;
  font-size: 13px;
  line-height: 1.66;
  color: var(--fg-dim);
}

.page-news .side-figure {
  margin-bottom: 18px;
}

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

.page-news .rank-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .rank-item__no {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--sage);
}

.page-news .rank-item__name {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--fg);
}

.page-news .rank-item__ver {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--amber);
  white-space: nowrap;
}

.page-news .side-panel__foot {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--fg-dim);
}

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

.page-news .side-topic-list li {
  border-bottom: 1px solid var(--line);
}

.page-news .side-topic-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 2px;
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast) ease;
}

.page-news .side-topic-list a:hover,
.page-news .side-topic-list a:focus-visible {
  color: var(--cyan);
}

.page-news .side-topic-list__name {
  font-size: 14.5px;
  line-height: 1.5;
}

.page-news .side-topic-list__meta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--fg-dim);
  white-space: nowrap;
}

/* ---------- 专题横向主题带 ---------- */
.page-news .news-figure--topics {
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-news .topic-band {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .topic-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "idx count"
    "body body";
  gap: 10px 16px;
  padding: 20px 20px 22px;
  background: var(--ink-800);
  border-left: 3px solid var(--news-sage-line);
  transition: border-left-color var(--t-base) ease, background var(--t-base) ease;
}

.page-news .topic-row:hover {
  border-left-color: var(--cyan);
  background: var(--ink-700);
}

.page-news .topic-row__idx {
  grid-area: idx;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .topic-row__count {
  grid-area: count;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  color: var(--amber);
  white-space: nowrap;
}

.page-news .topic-row__body {
  grid-area: body;
  min-width: 0;
}

.page-news .topic-row__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--fg);
}

.page-news .topic-row__body p {
  margin: 0;
  max-width: 74ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fg-dim);
}

/* ---------- 联系与反馈 ---------- */
.page-news .news-contact {
  padding-bottom: clamp(44px, 6vw, 80px);
}

.page-news .contact-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-news .contact-block {
  border: 1px solid var(--line);
  background: var(--news-panel);
  padding: 22px 20px 24px;
}

.page-news .contact-block--tips {
  background: var(--ink-800);
}

.page-news .contact-block__title {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
}

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

.page-news .contact-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .contact-list__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-news .contact-list__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--fg);
  word-break: break-word;
}

.page-news .contact-block__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--fg-dim);
}

.page-news .contact-block__links {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-size: 13.5px;
}

.page-news .contact-block__links a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 195, 255, 0.32);
  padding-bottom: 2px;
}

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

.page-news .tips-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: tip;
}

.page-news .tips-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .tips-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .tips-list__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--cyan);
  padding-top: 3px;
}

.page-news .tips-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--fg);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .news-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 22px;
  }

  .page-news .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .feed-entry__head {
    grid-template-columns: 86px minmax(0, 1fr) auto;
    gap: 4px 16px;
    align-items: baseline;
  }

  .page-news .feed-entry__tags {
    grid-column: 3;
    justify-content: flex-end;
  }

  .page-news .feed-meta {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 12px 18px;
  }

  .page-news .feed-meta dt {
    padding-top: 4px;
  }

  .page-news .contact-list li {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

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

  .page-news .contact-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

  .page-news .topic-row {
    grid-template-columns: 74px minmax(0, 1fr) auto;
    grid-template-areas: "idx .page-news count";
    align-items: start;
    gap: 6px 22px;
    padding: 22px 24px;
  }
}

@media (min-width: 1024px) {
  .page-news .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .news-body {
    grid-template-columns: minmax(0, 1fr) 322px;
    align-items: start;
  }

  .page-news .news-side {
    position: sticky;
    top: 94px;
    max-height: calc(100vh - 116px);
    overflow-y: auto;
    scrollbar-width: thin;
    padding-right: 2px;
  }
}

@media (min-width: 1280px) {
  .page-news .news-body {
    grid-template-columns: minmax(0, 1fr) 360px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .cat-card__band,
  .page-news .feed-item::before,
  .page-news .topic-row,
  .page-news .side-topic-list a {
    transition: none;
  }
}