.page-news {
  --news-rail-w: 264px;
  --news-gap: 56px;
  --news-ink-soft: rgba(58, 90, 80, 0.5);
  color: var(--text);
  padding-bottom: 88px;
}

.page-news .crumbs {
  padding-top: 24px;
}

/* ---------- 首屏叙述 ---------- */
.page-news .news-lead {
  padding: 32px 0 44px;
  border-bottom: 1px solid var(--news-ink-soft);
}

.page-news .news-lead__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  max-width: 22em;
}

.page-news .news-lead__dek {
  margin: 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-lead__facts {
  display: flex;
  flex-wrap: wrap;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--news-ink-soft);
}

.page-news .news-lead__facts li {
  flex: 1 1 150px;
  padding: 18px 20px 4px 0;
  border-right: 1px solid var(--news-ink-soft);
}

.page-news .news-lead__facts li:last-child {
  border-right: 0;
}

.page-news .news-lead__fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 30px);
  line-height: 1.15;
  color: var(--cyan);
}

.page-news .news-lead__fact-lab {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 主框架 ---------- */
.page-news .news-frame {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: 40px;
}

@media (min-width: 900px) {
  .page-news .news-frame {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
  }
}

/* ---------- 左侧常驻目录 ---------- */
.page-news .news-rail__inner {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

@media (min-width: 900px) {
  .page-news .news-rail__inner {
    position: sticky;
    top: 116px;
  }
}

.page-news .news-rail__head {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .news-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

@media (min-width: 560px) and (max-width: 899px) {
  .page-news .news-rail__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }
}

.page-news .news-rail__list a {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--news-ink-soft);
  font-size: 15px;
  line-height: 1.4;
  color: var(--text);
  text-decoration: none;
  transition: color 120ms var(--ease), border-color 120ms var(--ease);
}

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

.page-news .news-rail__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding-top: 2px;
}

.page-news .news-rail__issues {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-rail__issues li {
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  border-bottom: 1px solid var(--news-ink-soft);
}

/* ---------- 内容流 ---------- */
.page-news .news-stream {
  display: flex;
  flex-direction: column;
  gap: 76px;
  min-width: 0;
}

.page-news .news-section {
  scroll-margin-top: 118px;
  min-width: 0;
}

.page-news .section-label__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 3vw, 27px);
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.page-news .news-section__intro {
  margin: 0 0 30px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 头条 ---------- */
.page-news .feature-card {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-news .feature-card__media {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

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

.page-news .feature-card__body {
  padding: 26px 24px 30px;
}

.page-news .feature-card__title {
  margin: 16px 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 3.6vw, 32px);
  line-height: 1.24;
  letter-spacing: 0.01em;
}

.page-news .feature-card__dek {
  margin: 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .feature-card__points {
  margin: 24px 0 26px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--news-ink-soft);
}

.page-news .feature-card__points li {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--news-ink-soft);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.page-news .feature-card__points li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 8px;
  background: var(--amber);
}

/* ---------- 案例对照列表 ---------- */
.page-news .case-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-news .case-item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 20px 0;
  border-top: 1px solid var(--news-ink-soft);
  transition: border-color 120ms var(--ease);
}

.page-news .case-item:last-child {
  border-bottom: 1px solid var(--news-ink-soft);
}

.page-news .case-item:hover,
.page-news .case-item:focus-within {
  border-color: var(--cyan);
}

@media (min-width: 560px) {
  .page-news .case-item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 4px 24px;
  }
}

.page-news .case-item__no {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-news .case-item__main {
  min-width: 0;
}

.page-news .case-item__title {
  margin: 0 0 7px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
  color: var(--text);
}

.page-news .case-item__angle {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .case-item__hover {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--cyan);
  transition: max-height 200ms var(--ease), opacity 200ms var(--ease), margin-top 200ms var(--ease);
}

.page-news .case-item:hover .case-item__hover,
.page-news .case-item:focus-within .case-item__hover {
  max-height: 64px;
  margin-top: 10px;
  opacity: 1;
}

.page-news .case-item--lead {
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  padding: 0;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-news .case-item--lead:hover,
.page-news .case-item--lead:focus-within {
  border-color: var(--cyan);
}

.page-news .case-item--lead .case-item__media {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.page-news .case-item--lead .case-item__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .case-item__lead-body {
  min-width: 0;
  padding: 22px 22px 26px;
}

.page-news .case-item--lead .case-item__title {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 26px);
  line-height: 1.28;
}

.page-news .case-item__when {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-news .case-item--lead {
    grid-template-columns: minmax(0, 42%) minmax(0, 1fr);
  }

  .page-news .case-item--lead .case-item__media {
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }
}

.page-news .case-item--compact {
  padding: 15px 0;
}

.page-news .case-item--compact .case-item__title {
  font-size: 16px;
  margin-bottom: 5px;
}

/* ---------- 移动端栏目评测 ---------- */
.page-news .ios-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-bottom: 30px;
}

@media (min-width: 720px) {
  .page-news .ios-head {
    grid-template-columns: minmax(0, 240px) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }
}

.page-news .ios-head__media {
  margin: 0;
}

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

.page-news .ios-head__text p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .ios-head__text p:last-child {
  margin-bottom: 0;
}

.page-news .ios-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding: 2px 0 18px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-news .ios-track:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-news .ios-track::-webkit-scrollbar {
  height: 4px;
}

.page-news .ios-track::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-news .ios-card {
  flex: 0 0 84%;
  scroll-snap-align: start;
  min-width: 0;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  transition: border-color 120ms var(--ease), background-color 120ms var(--ease);
}

.page-news .ios-card:hover {
  border-color: var(--cyan);
  background: var(--panel-2);
}

@media (min-width: 640px) {
  .page-news .ios-card {
    flex-basis: 46%;
  }
}

@media (min-width: 1024px) {
  .page-news .ios-card {
    flex-basis: 31.5%;
  }
}

.page-news .ios-card__ver {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--news-ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .ios-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
}

.page-news .ios-card__body {
  margin: 0;
  flex: 1 1 auto;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .ios-card__note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- 短记流 ---------- */
.page-news .obs-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}

.page-news .obs-item {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 6px 18px;
  padding: 17px 0;
  border-top: 1px solid var(--news-ink-soft);
}

.page-news .obs-item:last-child {
  border-bottom: 1px solid var(--news-ink-soft);
}

@media (min-width: 640px) {
  .page-news .obs-item {
    grid-template-columns: 156px minmax(0, 1fr);
    gap: 6px 28px;
  }
}

.page-news .obs-item__when {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--cyan-soft);
}

.page-news .obs-item__what {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 归档与反馈 ---------- */
.page-news .archive-media {
  margin: 0 0 34px;
}

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

.page-news .archive-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

@media (min-width: 640px) {
  .page-news .archive-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
  }
}

.page-news .archive-col__title {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .archive-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
}

.page-news .archive-list li {
  padding: 9px 0;
  border-bottom: 1px solid var(--news-ink-soft);
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

.page-news .archive-cta {
  margin-top: 36px;
  padding: 26px 24px 28px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, var(--panel-2) 0%, var(--panel) 72%);
  display: grid;
  gap: 20px;
}

.page-news .archive-cta p {
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-news .archive-cta .cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

/* ---------- 动效兼容 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-rail__list a,
  .page-news .case-item,
  .page-news .case-item__hover,
  .page-news .ios-card {
    transition: none;
  }

  .page-news .case-item__hover {
    max-height: none;
    margin-top: 8px;
    opacity: 1;
  }
}