/* ===== 趋势观察 / page-news ===== */

.page-news {
  display: block;
}

.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 28px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--steel-500);
}

.page-news .breadcrumb a {
  color: var(--lake-600);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

.page-news .breadcrumb a:hover {
  color: var(--ochre-500);
  border-bottom-color: var(--ochre-500);
}

.page-news .breadcrumb > span[aria-hidden] {
  opacity: 0.45;
}

.page-news .breadcrumb > span:last-child {
  color: var(--ink-900);
  font-weight: 700;
}

/* ---------- 页面标题带 ---------- */

.page-news .page-head {
  padding: 22px 0 40px;
}

.page-news .page-head .eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--ochre-500);
}

.page-news .page-head h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.25rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink-900);
}

.page-news .page-head h1::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  margin-top: 20px;
  background: var(--ochre-500);
}

.page-news .page-head .lede {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.85;
  color: var(--ink-900);
  opacity: 0.82;
}

/* ---------- 专题索引横带 ---------- */

.page-news .news-band {
  padding: var(--step-2) 0;
  background:
    radial-gradient(120% 140% at 100% 100%, rgba(250, 248, 244, 0.94) 0%, rgba(250, 248, 244, 0) 58%),
    linear-gradient(132deg, var(--lake-900) 0%, var(--lake-600) 62%, #478FA3 100%);
  color: var(--paper);
}

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

.page-news .news-band__eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: rgba(250, 248, 244, 0.72);
}

.page-news .news-band__title {
  max-width: 24ch;
  margin: 0 0 28px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .topic-card {
  border-radius: var(--radius);
  background: rgba(250, 248, 244, 0.9);
  transition: transform 120ms var(--ease), background-color 120ms var(--ease);
}

.page-news .topic-card:hover {
  transform: translateX(2px);
  background: var(--paper);
}

.page-news .topic-card__link {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 3px 14px;
  align-items: start;
  padding: 14px 16px 15px;
  border-radius: var(--radius);
  border-left: 3px solid var(--ochre-500);
  text-decoration: none;
  color: var(--ink-900);
}

.page-news .topic-card__code {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.02em;
  color: var(--ochre-500);
}

.page-news .topic-card__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.page-news .topic-card__desc {
  font-size: 13px;
  line-height: 1.62;
  color: var(--steel-500);
}

.page-news .news-band__media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(250, 248, 244, 0.34);
}

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

/* ---------- 主体 ---------- */

.page-news .trends-body {
  padding-top: var(--step-2);
  padding-bottom: var(--step-2);
}

.page-news .section + .section {
  margin-top: var(--step-2);
}

.page-news .section-head {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-news .section-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 2.6vw, 1.875rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--lake-900);
}

.page-news .section-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel-500);
}

.page-news figcaption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--steel-500);
  background: var(--salt-50);
}

/* ---------- 条目列表 ---------- */

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

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

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

.page-news .entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--ochre-500);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 140ms var(--ease);
}

.page-news .entry:hover::before,
.page-news .entry[open]::before {
  transform: scaleY(1);
}

.page-news .entry-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 24px;
  gap: 0 14px;
  align-items: start;
  padding: 20px 10px 20px 14px;
  cursor: pointer;
  list-style: none;
  transition: transform 120ms var(--ease), background-color 120ms var(--ease);
}

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

.page-news .entry-row::marker {
  content: "";
}

.page-news .entry:hover .entry-row {
  transform: translateX(4px);
  background: rgba(180, 83, 30, 0.05);
}

.page-news .entry-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.02em;
  color: var(--steel-500);
  transition: color 120ms var(--ease);
}

.page-news .entry:hover .entry-num,
.page-news .entry[open] .entry-num {
  color: var(--ochre-500);
}

.page-news .entry-col {
  display: block;
  min-width: 0;
}

.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.06em;
}

.page-news .tag--model {
  background: rgba(46, 124, 147, 0.14);
  color: var(--lake-900);
}

.page-news .tag--tier {
  background: var(--ochre-100);
  color: var(--ochre-500);
}

.page-news .tag--stock {
  background: rgba(47, 111, 99, 0.14);
  color: var(--fern-700);
}

.page-news .tag--scene {
  background: rgba(158, 59, 46, 0.12);
  color: var(--clay-700);
}

.page-news .entry-time {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--steel-500);
}

.page-news .entry-title {
  margin: 0 0 9px;
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.7vw, 1.125rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.005em;
  color: var(--ink-900);
}

.page-news .entry-teaser {
  display: block;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-900);
  opacity: 0.68;
}

.page-news .entry-mark {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: border-color 120ms var(--ease);
}

.page-news .entry-mark::before,
.page-news .entry-mark::after {
  content: "";
  position: absolute;
  background: var(--steel-500);
  transition: transform 160ms var(--ease), background-color 120ms var(--ease);
}

.page-news .entry-mark::before {
  left: 6px;
  right: 6px;
  top: 50%;
  height: 1.5px;
  margin-top: -0.75px;
}

.page-news .entry-mark::after {
  top: 6px;
  bottom: 6px;
  left: 50%;
  width: 1.5px;
  margin-left: -0.75px;
}

.page-news .entry[open] .entry-mark::after {
  transform: scaleY(0);
}

.page-news .entry:hover .entry-mark {
  border-color: var(--ochre-500);
}

.page-news .entry:hover .entry-mark::before,
.page-news .entry:hover .entry-mark::after {
  background: var(--ochre-500);
}

.page-news .entry-body {
  padding: 0 16px 24px 60px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-900);
  opacity: 0.86;
}

.page-news .entry-body p {
  margin: 0 0 12px;
}

.page-news .entry-body p:last-child {
  margin-bottom: 0;
}

/* ---------- 交期与库存观察 ---------- */

.page-news .obs-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}

.page-news .obs-panel__body {
  padding: 26px 22px 28px;
  border-left: 3px solid var(--fern-700);
}

.page-news .obs-stamp {
  display: inline-block;
  margin: 0 0 16px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  background: rgba(47, 111, 99, 0.12);
  color: var(--fern-700);
}

.page-news .obs-panel__body > p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-900);
  opacity: 0.86;
}

.page-news .obs-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 10px;
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}

.page-news .obs-stat__value {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--lake-900);
  font-variant-numeric: tabular-nums;
}

.page-news .obs-stat__label {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  letter-spacing: 0.03em;
  color: var(--steel-500);
}

.page-news .obs-panel__media {
  margin: 0;
  border-top: 1px solid var(--line);
}

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

/* ---------- 手册更新 ---------- */

.page-news .manual-log {
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-news .manual-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--line);
}

.page-news .manual-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .manual-item__ver {
  padding: 2px 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--salt-50);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--lake-900);
}

.page-news .manual-item__when {
  font-size: 12.5px;
  color: var(--steel-500);
}

.page-news .manual-item__body h3 {
  margin: 4px 0 8px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-900);
}

.page-news .manual-item__body p {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-900);
  opacity: 0.75;
}

.page-news .manual-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

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

/* ---------- 选型问答 ---------- */

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

.page-news .qa-note {
  padding: 20px 0 22px;
  border-bottom: 1px solid var(--line);
}

.page-news .qa-note__q {
  position: relative;
  margin: 0 0 8px;
  padding-left: 26px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--lake-900);
}

.page-news .qa-note__q::before {
  content: "Q";
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ochre-500);
}

.page-news .qa-note__a {
  position: relative;
  margin: 0;
  padding-left: 26px;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-900);
  opacity: 0.74;
}

.page-news .qa-note__a::before {
  content: "A";
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--steel-500);
}

.page-news .qa-more {
  margin: 22px 0 0;
  font-size: 14px;
}

.page-news .qa-more a {
  color: var(--lake-600);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  transition: color 120ms var(--ease);
}

.page-news .qa-more a:hover {
  color: var(--ochre-500);
}

/* ---------- 场景与工况 ---------- */

.page-news .scenes-figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-news .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-news .scene-card {
  padding: 20px 20px 22px;
  background: var(--paper);
}

.page-news .scene-card h3 {
  margin: 0 0 9px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink-900);
}

.page-news .scene-card h3::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--ochre-500);
  vertical-align: 2px;
}

.page-news .scene-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-900);
  opacity: 0.74;
}

/* ---------- 行业词 ---------- */

.page-news .glossary {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-news .glossary__item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .glossary__term {
  margin: 0 0 9px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--lake-900);
}

.page-news .glossary__def {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-900);
  opacity: 0.78;
}

/* ---------- 收尾 ---------- */

.page-news .cta {
  padding: 32px 22px 34px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--ochre-500);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(241, 220, 207, 0.6) 0%, rgba(250, 248, 244, 1) 55%, rgba(46, 124, 147, 0.1) 100%);
}

.page-news .cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.4vw, 1.5rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--lake-900);
}

.page-news .cta__text {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-900);
  opacity: 0.78;
}

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

/* ---------- 响应式 ---------- */

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

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

  .page-news .cta {
    padding: 36px 32px 38px;
  }
}

@media (min-width: 760px) {
  .page-news .manual-item {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 0 28px;
  }

  .page-news .manual-item__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (min-width: 880px) {
  .page-news .news-band__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 56px;
  }

  .page-news .obs-panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news .obs-panel__media {
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .page-news .obs-panel__media img {
    height: 100%;
    object-fit: cover;
  }

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

@media (max-width: 540px) {
  .page-news .entry-row {
    grid-template-columns: 34px minmax(0, 1fr) 20px;
    gap: 0 10px;
    padding: 18px 6px 18px 12px;
  }

  .page-news .entry-body {
    padding: 0 6px 22px 56px;
  }

  .page-news .obs-panel__body {
    padding: 22px 16px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition-duration: 0.01ms !important;
  }
}