.page-news {
  --news-card-offset: 48px;
  --news-gap: 24px;
  padding-bottom: 88px;
  background: var(--paper);
  color: var(--ink);
}

.page-news .breadcrumb {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  gap: 32px;
  padding: 28px 0 56px;
}

.page-news .news-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(34px, 9vw, 74px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--navy-900);
}

.page-news .news-hero__lede {
  max-width: 35em;
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--navy-800);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
}

.page-news .news-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .news-stat .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1;
  color: var(--navy-900);
}

.page-news .news-stat .stat-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--navy-600);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-news .news-hero__visual {
  position: relative;
  order: -1;
  aspect-ratio: 4 / 5;
  max-height: 420px;
  border: 1px solid var(--line-dark);
  overflow: hidden;
  background: var(--navy-800);
}

.page-news .news-hero__visual svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-news .news-hero__coord {
  position: absolute;
  left: 16px;
  bottom: 14px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper);
  opacity: 0.78;
}

/* ---------- 通用章节头 ---------- */
.page-news .news-section-head {
  margin-bottom: 24px;
}

.page-news .news-section-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(24px, 5.2vw, 40px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--navy-900);
}

.page-news .news-section-head p {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--navy-600);
}

.page-news .news-section-head--inverse h2 {
  color: var(--paper);
}

.page-news .news-section-head--inverse p {
  color: rgba(245, 248, 250, 0.76);
}

/* ---------- 季度专题带 ---------- */
.page-news .news-topics {
  padding: 44px 0 40px;
  background: var(--navy-900);
  color: var(--paper);
}

.page-news .topics-wrap {
  position: relative;
}

.page-news .topics-wrap::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 16px;
  width: 56px;
  background: linear-gradient(to left, var(--navy-900), rgba(6, 26, 43, 0));
  pointer-events: none;
}

.page-news .topics-scroll {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(272px, 82vw);
  gap: 20px;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 4px 20px 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--blue-400) transparent;
}

.page-news .topics-scroll:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
  border: 1px solid var(--line-dark);
  background: var(--navy-800);
  transition: border-color var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}

.page-news .topic-card:hover,
.page-news .topic-card:focus-within {
  border-color: var(--coral);
  transform: translateY(-2px);
}

.page-news .topic-card__flag {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-dark);
  background: linear-gradient(135deg, var(--navy-600), var(--navy-900));
}

.page-news .topic-card__flag .mono {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--coral-soft);
}

.page-news .topic-card .media {
  border-bottom: 1px solid var(--line-dark);
}

.page-news .topic-card .media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-news .topic-card__body {
  padding: 18px 18px 22px;
}

.page-news .topic-card__batch {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--teal);
}

.page-news .topic-card h3 {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 900;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .topic-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 248, 250, 0.72);
}

.page-news .topic-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--coral-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 166, 132, 0.55);
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-news .topic-link:hover,
.page-news .topic-link:focus-visible {
  color: var(--paper);
  border-color: var(--paper);
}

/* ---------- 案例区 ---------- */
.page-news .news-cases {
  padding: 56px 0 0;
}

.page-news .cases-layout {
  display: grid;
  gap: var(--news-gap);
}

.page-news .filter-panel {
  padding: 20px 18px 22px;
  border: 1px solid var(--line-dark);
  background: var(--mist);
  align-self: start;
}

.page-news .filter-group + .filter-group {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(62, 143, 176, 0.34);
}

.page-news .filter-group-title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--navy-600);
}

.page-news .filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .filter-tags .tag {
  padding: 6px 12px;
  font-size: 13px;
  line-height: 1.2;
  color: var(--navy-800);
  background: transparent;
  border: 1px solid rgba(62, 143, 176, 0.55);
  border-radius: 2px;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-news .filter-tags .tag:hover {
  border-color: var(--coral);
  color: var(--coral);
}

.page-news .filter-tags .tag[aria-pressed="true"] {
  background: var(--coral);
  border-color: var(--coral);
  color: #ffffff;
}

.page-news .filter-tags .tag:focus-visible,
.page-news .filter-clear:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-news .result-count {
  margin: 20px 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--navy-600);
}

.page-news .filter-clear {
  width: 100%;
  font-size: 13px;
}

.page-news .case-stream {
  display: grid;
  gap: var(--news-gap);
}

.page-news .case-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid var(--mist);
  transition: border-color var(--t-base) var(--ease), transform var(--t-base) var(--ease);
}

.page-news .case-card:hover,
.page-news .case-card:focus-within {
  border-color: var(--coral);
  transform: translateY(-2px);
}

.page-news .case-card--plain {
  background: var(--paper);
  border-left: 3px solid var(--navy-600);
}

.page-news .case-card__thumb {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy-800), var(--teal));
}

.page-news .case-card__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  transition: transform var(--t-base) var(--ease);
}

.page-news .case-card:hover .case-card__thumb img {
  transform: scale(1.03);
}

.page-news .case-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 18px 20px;
}

.page-news .case-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.page-news .case-card__meta .tag--plain {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--navy-800);
  background: var(--mist);
  border-left: 2px solid var(--teal);
  border-radius: 0;
}

.page-news .case-card__time {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue-400);
  white-space: nowrap;
}

.page-news .case-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 900;
  line-height: 1.32;
  color: var(--navy-900);
}

.page-news .case-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink);
}

.page-news .case-card__more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height var(--t-base) var(--ease), opacity var(--t-base) var(--ease), margin-top var(--t-base) var(--ease);
}

.page-news .case-card:hover .case-card__more,
.page-news .case-card:focus-within .case-card__more {
  max-height: 220px;
  opacity: 1;
  margin-top: 14px;
}

.page-news .case-card__more-label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--coral);
}

.page-news .case-card__more ul {
  margin: 0;
  padding: 0 0 0 2px;
  list-style: none;
}

.page-news .case-card__more li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--navy-600);
}

.page-news .case-card__more li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--teal);
}

.page-news .case-card__foot {
  margin: auto 0 0;
  padding-top: 14px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--blue-400);
  border-top: 1px solid var(--mist);
}

.page-news .case-card__desc + .case-card__foot,
.page-news .case-card__more + .case-card__foot {
  margin-top: 14px;
}

/* ---------- 订阅条 ---------- */
.page-news .news-subscribe {
  display: grid;
  gap: 24px;
  margin-top: 56px;
  padding: 30px 22px;
  border: 1px solid var(--line-dark);
  border-left: 4px solid var(--coral);
  background: linear-gradient(135deg, var(--navy-800), var(--navy-600) 68%, var(--teal));
  color: var(--paper);
}

.page-news .news-subscribe .batch-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-news .news-subscribe .batch-chip-key {
  padding: 2px 6px;
  background: var(--coral);
  color: #ffffff;
  letter-spacing: 0.06em;
}

.page-news .news-subscribe h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 4.6vw, 32px);
  font-weight: 900;
  line-height: 1.18;
  color: var(--paper);
}

.page-news .news-subscribe p {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(245, 248, 250, 0.82);
}

.page-news .news-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: center;
}

/* ---------- 案例方法 ---------- */
.page-news .news-method {
  padding: 64px 0 0;
}

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

.page-news .method-list li {
  padding: 22px 18px;
  background: #ffffff;
}

.page-news .method-num {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--coral);
}

.page-news .method-list h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 900;
  line-height: 1.3;
  color: var(--navy-900);
}

.page-news .method-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--navy-600);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  padding: 64px 0 0;
}

.page-news .cadence-grid {
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}

.page-news .cadence-cell {
  padding: 22px 18px;
  background: #ffffff;
}

.page-news .cadence-key {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--teal);
}

.page-news .cadence-cell h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.3;
  color: var(--navy-900);
}

.page-news .cadence-cell p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--navy-600);
}

.page-news .fold-group {
  margin-top: 28px;
  border-top: 1px solid var(--line-dark);
}

.page-news .fold-heading {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
}

.page-news .fold-panel p {
  max-width: 38em;
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--navy-600);
}

.page-news .fold-panel a {
  color: var(--navy-800);
  text-decoration: underline;
  text-decoration-color: var(--coral);
  text-underline-offset: 3px;
}

.page-news .fold-panel a:hover {
  color: var(--coral);
}

/* ---------- 合作与来稿 ---------- */
.page-news .news-collab {
  display: grid;
  gap: 24px;
  margin-top: 64px;
  padding: 28px 22px;
  border: 1px solid var(--line-dark);
  background: var(--mist);
}

.page-news .news-collab h2 {
  margin: 8px 0 12px;
  font-size: clamp(22px, 4.8vw, 34px);
  font-weight: 900;
  line-height: 1.16;
  color: var(--navy-900);
}

.page-news .news-collab__main p {
  max-width: 34em;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--navy-600);
}

.page-news .news-collab__side {
  padding: 20px 18px;
  background: #ffffff;
  border-left: 3px solid var(--teal);
}

.page-news .collab-side-key {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--blue-400);
}

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

.page-news .news-collab__side li + li {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--mist);
}

.page-news .news-collab__side a {
  font-size: 14px;
  line-height: 1.7;
  color: var(--navy-800);
  text-decoration: none;
  border-bottom: 1px solid rgba(62, 143, 176, 0.45);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

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

/* ---------- 桌面布局 ---------- */
@media (min-width: 860px) {
  .page-news .news-hero {
    grid-template-columns: 58fr 42fr;
    gap: 48px;
    align-items: start;
    padding: 36px 0 72px;
  }

  .page-news .news-hero__visual {
    order: 0;
    aspect-ratio: auto;
    height: 100%;
    min-height: 480px;
    max-height: none;
  }

  .page-news .topics-scroll {
    grid-auto-columns: minmax(300px, 1fr);
    padding-inline: 28px;
  }

  .page-news .case-stream {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
    row-gap: 28px;
    align-items: start;
  }

  .page-news .case-card:nth-child(even) {
    margin-top: var(--news-card-offset);
  }

  .page-news .news-subscribe {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 36px 32px;
  }

  .page-news .method-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-news .news-collab {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    padding: 36px 32px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-news .cases-layout {
    grid-template-columns: 262px minmax(0, 1fr);
    column-gap: 40px;
    align-items: start;
  }

  .page-news .filter-panel {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (hover: none) {
  .page-news .case-card__more {
    max-height: 260px;
    opacity: 1;
    margin-top: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .case-card,
  .page-news .case-card__thumb img,
  .page-news .case-card__more,
  .page-news .topic-card,
  .page-news .filter-tags .tag {
    transition: none;
  }

  .page-news .case-card:hover,
  .page-news .case-card:focus-within,
  .page-news .topic-card:hover,
  .page-news .topic-card:focus-within {
    transform: none;
  }

  .page-news .case-card:hover .case-card__thumb img {
    transform: none;
  }
}