.page-news {
  --news-lane-before: var(--c-purple);
  --news-lane-after: var(--c-cyan);
  --news-pad: clamp(18px, 3.2vw, 34px);
  padding-bottom: clamp(72px, 10vw, 140px);
}

.page-news .section {
  margin-top: clamp(56px, 8vw, 108px);
}

/* ---------- 版头 ---------- */
.page-news .news-hero {
  position: relative;
  margin-top: 18px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--c-panel);
}

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

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: brightness(0.58) saturate(0.92);
}

.page-news .news-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 7, 15, 0.12) 0%, rgba(5, 7, 15, 0.74) 56%, var(--c-bg) 100%);
}

.page-news .news-hero__body {
  position: relative;
  display: grid;
  gap: 16px;
  padding: var(--news-pad);
}

.page-news .news-hero__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(46px, 11vw, 104px);
  line-height: 0.96;
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

.page-news .news-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-news .news-hero__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--c-line);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

/* ---------- 指标条 ---------- */
.page-news .news-stats {
  margin-top: clamp(24px, 4vw, 40px);
  padding: 20px 0;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.page-news .news-stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 32px);
  line-height: 1.1;
  color: var(--c-ink);
}

.page-news .news-stats .stat__unit {
  font-size: 12px;
  color: var(--c-ink-soft);
}

.page-news .news-stats .stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-ink-soft);
}

/* ---------- 双轨时间线 ---------- */
.page-news .twin-track {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3.6vw, 38px);
  padding: var(--news-pad);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  background: linear-gradient(160deg, rgba(13, 20, 40, 0.92), rgba(5, 7, 15, 0.92));
}

.page-news .twin-axis {
  display: none;
}

.page-news .twin-lane {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px dashed var(--c-line);
  border-radius: 18px;
}

.page-news .twin-lane--before {
  --news-lane: var(--news-lane-before);
}

.page-news .twin-lane--after {
  --news-lane: var(--news-lane-after);
}

.page-news .twin-lane__name {
  grid-column: 1 / -1;
  margin: 0 0 4px;
}

.page-news .twin-lane__name .label-index {
  color: var(--news-lane);
}

.page-news .twin-nodes {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .twin-node {
  position: relative;
  display: grid;
  gap: 5px;
  padding: 12px 14px;
  border: 1px solid var(--c-line);
  border-radius: 14px;
  background: rgba(5, 7, 15, 0.55);
  outline: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-news .twin-node:hover,
.page-news .twin-node:focus-visible {
  border-color: var(--news-lane);
  background: rgba(5, 7, 15, 0.8);
}

.page-news .twin-node__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--news-lane);
}

.page-news .twin-node__axis {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
}

.page-news .twin-node__value {
  font-size: 16px;
  line-height: 1.5;
  color: var(--c-ink);
}

.page-news .twin-node__detail {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

/* ---------- 图片与图注 ---------- */
.page-news .news-figure {
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--c-panel);
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: brightness(0.74) saturate(0.92);
}

.page-news .news-figure__caption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--c-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

/* ---------- 分类标签 ---------- */
.page-news .tag-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 18px;
}

.page-news .tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border: 1px solid var(--tag-color, var(--c-line));
  border-radius: 999px;
  background: transparent;
  color: var(--tag-color, var(--c-ink-soft));
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.18s var(--ease);
}

.page-news a.tag:hover {
  background: rgba(255, 255, 255, 0.07);
}

.page-news .tag--index { --tag-color: var(--c-cyan); }
.page-news .tag--version { --tag-color: var(--c-purple); }
.page-news .tag--city { --tag-color: var(--tier-2); }
.page-news .tag--price { --tag-color: var(--tier-4); }
.page-news .tag--warranty { --tag-color: var(--warm-mid); }
.page-news .tag--stock { --tag-color: var(--c-orange); }

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

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

.page-news .report-item {
  display: block;
}

.page-news .report-item__summary {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 20px 10px 20px 20px;
  list-style: none;
  cursor: pointer;
  transition: background 0.2s var(--ease);
}

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

.page-news .report-item__summary::marker {
  content: "";
}

.page-news .report-item__summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: var(--c-cyan);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
}

.page-news .report-item__summary:hover::before,
.page-news .report-item__summary:focus-visible::before,
.page-news .report-item[open] .report-item__summary::before {
  opacity: 1;
}

.page-news .report-item__index {
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--c-ink-soft);
}

.page-news .report-item__index::before {
  content: "NO.";
  display: block;
  margin-bottom: 2px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--c-line);
}

.page-news .report-item__title {
  display: block;
  font-size: 17px;
  line-height: 1.55;
  color: var(--c-ink);
}

.page-news .report-item__excerpt {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-ink-soft);
}

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

.page-news .report-item__time {
  color: var(--c-ink-soft);
}

.page-news .report-item__body {
  padding: 4px 20px 22px;
  border-top: 1px dashed var(--c-line);
}

.page-news .report-item__body p {
  margin: 12px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink-soft);
}

/* ---------- 通用双栏 ---------- */
.page-news .news-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
}

/* ---------- 专题标签列 ---------- */
.page-news .topic-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .topic-item {
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: 20px;
  background: rgba(13, 20, 40, 0.62);
  scroll-margin-top: calc(var(--bar-h) + 28px);
  transition: border-color 0.2s var(--ease);
}

.page-news .topic-item:target {
  border-color: var(--c-cyan);
}

.page-news .topic-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .topic-item__count {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-ink-soft);
}

.page-news .topic-item__name {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--c-ink);
}

.page-news .topic-item__desc {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-ink-soft);
}

.page-news .topic-aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-news .topic-aside .news-figure {
  margin-top: 0;
}

.page-news .aside-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--c-ink-soft);
}

/* ---------- 城市覆盖专题 ---------- */
.page-news .city-feature {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-news .city-feature .news-figure {
  margin-top: 0;
}

.page-news .city-feature__text h3 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.18;
  color: var(--c-ink);
}

.page-news .city-feature__text p {
  margin: 0 0 16px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-ink-soft);
}

/* ---------- 阅读与引用 ---------- */
.page-news .read-notes {
  max-width: 68ch;
}

.page-news .read-notes h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  color: var(--c-ink);
}

.page-news .read-list {
  counter-reset: read;
  display: grid;
  gap: 14px;
  margin: 18px 0 22px;
  padding: 0;
  list-style: none;
}

.page-news .read-list li {
  position: relative;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-ink-soft);
}

.page-news .read-list li::before {
  counter-increment: read;
  content: counter(read, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-cyan);
}

.page-news .read-notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-ink-soft);
}

.page-news .read-aside {
  padding: 22px 22px 24px;
  border-radius: 22px;
}

.page-news .read-aside p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-ink-soft);
}

.page-news .read-aside .mono {
  font-size: 14px;
  color: var(--c-ink);
}

.page-news .read-aside .btn {
  margin-top: 6px;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 900px) {
  .page-news .news-hero__media img {
    aspect-ratio: 16 / 6;
  }

  .page-news .news-hero__body {
    position: absolute;
    inset: auto 0 0 0;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: end;
    gap: clamp(24px, 4vw, 64px);
    padding: clamp(28px, 4vw, 56px);
  }

  .page-news .news-hero__meta {
    border-top: 0;
    padding-top: 0;
  }
}

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

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

  .page-news .topic-aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }
}

@media (min-width: 860px) {
  .page-news .twin-axis {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    padding: 0 8px 10px;
    border-bottom: 1px solid var(--c-line);
  }

  .page-news .twin-axis span {
    font-size: 11.5px;
    letter-spacing: 0.14em;
    color: var(--c-ink-soft);
  }

  .page-news .twin-lane {
    padding: 22px 18px 24px;
    border-style: solid;
  }

  .page-news .twin-nodes {
    position: relative;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
  }

  .page-news .twin-nodes::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 15px;
    border-top: 1px dashed var(--news-lane);
    opacity: 0.4;
  }

  .page-news .twin-node {
    padding: 10px 8px;
    border-color: transparent;
    background: transparent;
  }

  .page-news .twin-node__axis {
    display: none;
  }

  .page-news .twin-node__detail {
    position: absolute;
    left: 0;
    top: calc(100% + 6px);
    width: min(230px, 24vw);
    padding: 10px 12px;
    border: 1px solid var(--c-line);
    border-radius: 14px;
    background: rgba(5, 7, 15, 0.97);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
    z-index: 6;
  }

  .page-news .twin-node:last-child .twin-node__detail {
    left: auto;
    right: 0;
  }

  .page-news .twin-node:hover .twin-node__detail,
  .page-news .twin-node:focus-visible .twin-node__detail,
  .page-news .twin-node:focus-within .twin-node__detail {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .page-news .report-item__summary {
    grid-template-columns: 84px minmax(0, 1fr) auto;
    align-items: start;
    gap: 20px;
    padding: 22px 12px 22px 22px;
  }

  .page-news .report-item__index {
    font-size: 22px;
    padding-top: 2px;
  }

  .page-news .report-item__meta {
    justify-content: flex-end;
    max-width: 260px;
  }

  .page-news .report-item__body {
    padding: 4px 22px 24px 126px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .twin-node,
  .page-news .report-item__summary,
  .page-news .report-item__summary::before,
  .page-news .topic-item {
    transition: none;
  }

  .page-news .twin-node__detail {
    transform: none;
  }

  .page-news .twin-node:hover .twin-node__detail,
  .page-news .twin-node:focus-visible .twin-node__detail,
  .page-news .twin-node:focus-within .twin-node__detail {
    transform: none;
  }
}