.page-news {
  --news-accent: var(--c-purple);
  position: relative;
  font-family: var(--font-body);
  color: var(--c-text);
  background:
    radial-gradient(1100px 520px at 88% -8%, rgba(139, 92, 246, 0.16), transparent 62%),
    radial-gradient(780px 420px at -6% 22%, rgba(0, 229, 255, 0.08), transparent 58%),
    var(--c-deep);
  min-height: 60vh;
}

.page-news .content-shell {
  width: min(100%, var(--container-max));
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ===== 首屏英雄区 ===== */
.page-news__hero {
  position: relative;
  padding: 1.25rem 0 1.5rem;
  overflow: hidden;
}

.page-news__hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 38%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--c-purple), var(--c-blue), var(--c-orange));
  z-index: 1;
}

.page-news__hero-inner {
  position: relative;
  z-index: 1;
}

.page-news__hero-grid {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  margin-top: 1.5rem;
}

.page-news__hero-copy {
  min-width: 0;
}

.page-news__eyebrow {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--c-blue);
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.page-news__hero-copy .page-title {
  margin: 0 0 0.75rem;
  line-height: 1.1;
}

.page-news__hero-copy .page-desc {
  margin: 0;
  max-width: 52ch;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-news__hero-tags {
  margin-top: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news__hero-media {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-navy);
  border: 1px solid var(--c-divider);
}

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

/* ===== 两栏布局 ===== */
.page-news__layout {
  display: grid;
  gap: 2rem;
  padding: 0.25rem 0 3rem;
  align-items: start;
}

.page-news__main {
  min-width: 0;
  display: grid;
  gap: 1.5rem;
}

/* ===== 分类区块 ===== */
.page-news__section {
  position: relative;
  padding: 1rem 1rem 1.25rem;
  background: linear-gradient(160deg, rgba(18, 26, 42, 0.94), rgba(10, 15, 31, 0.88));
  border: 1px solid var(--c-divider);
  border-radius: var(--radius-lg);
}

.page-news__section::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.page-news__section--platform::before {
  background: var(--c-purple);
}

.page-news__section--data::before {
  background: var(--c-blue);
}

.page-news__section--subscribe::before {
  background: var(--c-orange);
}

.page-news__section--mobile::before {
  background: linear-gradient(180deg, var(--c-blue), var(--c-purple));
}

.page-news__section-head {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  margin-bottom: 1.25rem;
  padding-left: 0.5rem;
}

.page-news__section-index {
  font-family: var(--font-data);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-muted);
  border: 1px solid var(--c-divider);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  line-height: 1;
  background: rgba(10, 15, 31, 0.6);
  flex: none;
}

.page-news__section-title {
  font-family: var(--font-title);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0;
}

.page-news__section-desc {
  margin: 0.3rem 0 0;
  color: var(--c-muted);
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 52ch;
}

/* ===== 时间线列表 ===== */
.page-news__list {
  position: relative;
  display: grid;
  gap: 1rem;
}

.page-news__list::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-purple) 10%, var(--c-blue) 80%, transparent);
  opacity: 0.75;
}

.page-news__section--data .page-news__list::before {
  background: linear-gradient(180deg, var(--c-blue) 10%, var(--c-purple) 80%, transparent);
}

.page-news__section--subscribe .page-news__list::before {
  background: linear-gradient(180deg, var(--c-orange) 10%, var(--c-purple) 80%, transparent);
}

.page-news__section--mobile .page-news__list::before {
  background: linear-gradient(180deg, var(--c-purple) 10%, var(--c-blue) 80%, transparent);
}

.page-news__entry {
  position: relative;
  padding-left: 2.25rem;
}

.page-news__entry::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-purple);
  border: 2px solid var(--c-deep);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.24), 0 0 12px rgba(139, 92, 246, 0.8);
}

.page-news__section--data .page-news__entry::before {
  background: var(--c-blue);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.22), 0 0 12px rgba(0, 229, 255, 0.78);
}

.page-news__section--subscribe .page-news__entry::before {
  background: var(--c-orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.22), 0 0 12px rgba(255, 107, 53, 0.78);
}

.page-news__section--mobile .page-news__entry::before {
  background: var(--c-blue);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.22), 0 0 12px rgba(0, 229, 255, 0.78);
}

.page-news__entry-card {
  background: var(--c-navy);
  border: 1px solid var(--c-divider);
  border-left-width: 3px;
  border-left-color: var(--c-purple);
  border-radius: var(--radius-md);
  padding: 1rem;
  transition: transform var(--dur-fast) var(--ease-out), border-color var(--dur-fast), box-shadow var(--dur-fast);
}

.page-news__entry-card:hover {
  transform: translateY(-3px);
  border-color: rgba(139, 92, 246, 0.56);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.12);
}

.page-news__section--data .page-news__entry-card {
  border-left-color: rgba(0, 229, 255, 0.55);
}

.page-news__section--data .page-news__entry-card:hover {
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.1);
}

.page-news__section--subscribe .page-news__entry-card {
  border-left-color: rgba(255, 107, 53, 0.55);
}

.page-news__section--subscribe .page-news__entry-card:hover {
  border-color: rgba(255, 107, 53, 0.5);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.1);
}

.page-news__section--mobile .page-news__entry-card {
  border-left-color: rgba(0, 229, 255, 0.55);
}

.page-news__section--mobile .page-news__entry-card:hover {
  border-color: rgba(0, 229, 255, 0.5);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.1);
}

/* ===== 条目文本与折叠 ===== */
.page-news__entry-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.page-news__entry-time {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-news__entry-title {
  font-family: var(--font-title);
  font-size: 1.0625rem;
  font-weight: 800;
  line-height: 1.4;
  margin: 0 0 0.5rem;
  color: var(--c-text);
}

.page-news__entry-excerpt {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(230, 232, 236, 0.86);
  margin: 0;
}

.page-news__fold {
  margin-top: 0.75rem;
  border-top: 1px dashed var(--c-divider);
  padding-top: 0.65rem;
}

.page-news__fold summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-blue);
  transition: color var(--dur-fast);
}

.page-news__fold summary::-webkit-details-marker {
  display: none;
}

.page-news__fold summary::after {
  content: "+";
  font-family: var(--font-data);
  font-size: 1rem;
  line-height: 1;
  transition: transform var(--dur-fast) var(--ease-out);
}

.page-news__fold[open] summary::after {
  transform: rotate(45deg);
}

.page-news__fold-body {
  margin-top: 0.65rem;
  color: var(--c-muted);
  font-size: 0.875rem;
  line-height: 1.75;
}

.page-news__fold-body p + p {
  margin-top: 0.5rem;
}

/* ===== 区块插图 ===== */
.page-news__section-media {
  margin: 1rem 0 1.25rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--c-divider);
  background: var(--c-navy);
}

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

.page-news__section-media figcaption,
.page-news__subscribe-figure figcaption,
.page-news__mobile-figure figcaption {
  padding: 0.65rem 0.9rem;
  font-size: 0.775rem;
  color: var(--c-muted);
  border-top: 1px solid var(--c-divider);
  background: rgba(10, 15, 31, 0.6);
}

/* ===== 订阅频道区块 ===== */
.page-news__subscribe-grid {
  display: grid;
  gap: 1.25rem;
  align-items: start;
}

.page-news__subscribe-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--c-divider);
  background: var(--c-navy);
}

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

/* ===== 小屏版区块 ===== */
.page-news__mobile-wrap {
  display: grid;
  gap: 1.25rem;
  align-items: start;
}

.page-news__mobile-figure {
  margin: 0 auto;
  max-width: 320px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--c-divider);
  background: var(--c-navy);
}

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

/* ===== 底部CTA ===== */
.page-news__bottom-cta {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(0, 229, 255, 0.06)), var(--c-navy);
  border: 1px solid rgba(139, 92, 246, 0.35);
  box-shadow: 0 0 28px rgba(139, 92, 246, 0.1);
  align-items: center;
}

.page-news__bottom-title {
  font-family: var(--font-title);
  font-size: 1.125rem;
  font-weight: 800;
  margin: 0 0 0.35rem;
  line-height: 1.4;
}

.page-news__bottom-text p {
  margin: 0;
  color: var(--c-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.page-news__bottom-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ===== 侧栏 ===== */
.page-news__side {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-news__side-block {
  background: var(--c-navy);
  border: 1px solid var(--c-divider);
  border-radius: var(--radius-md);
  padding: 1rem 1.125rem;
}

.page-news__side-block--glow {
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.18), rgba(0, 229, 255, 0.06)), var(--c-navy);
  border-color: rgba(139, 92, 246, 0.42);
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.12);
}

.page-news__side-title {
  font-family: var(--font-title);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text);
  margin: 0 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-divider);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-news__side-title::before {
  content: "";
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: var(--c-purple);
  flex: none;
}

.page-news__side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.page-news__side-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.55rem 0.65rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--c-text);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background var(--dur-fast), color var(--dur-fast), padding-left var(--dur-fast);
}

.page-news__side-link:hover {
  background: rgba(139, 92, 246, 0.12);
  color: var(--c-blue);
  padding-left: 0.85rem;
}

.page-news__side-num {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-muted);
  border: 1px solid var(--c-divider);
  border-radius: var(--radius-sm);
  padding: 0.15rem 0.35rem;
  line-height: 1;
  flex: none;
}

.page-news__topics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news__topics a.badge {
  text-decoration: none;
  color: var(--c-text);
  transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast);
}

.page-news__topics a.badge:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--c-purple);
  color: var(--c-blue);
  transform: translateY(-2px);
}

.page-news__side-text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--c-muted);
  margin: 0 0 0.9rem;
}

.page-news__side-text strong {
  color: var(--c-text);
}

.page-news__side-block .btn-secondary {
  width: 100%;
  justify-content: center;
}

.page-news__side-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.page-news__side-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--c-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  line-height: 1.4;
  padding: 0.45rem 0;
  border-bottom: 1px dashed var(--c-divider);
  transition: color var(--dur-fast), padding-left var(--dur-fast);
}

.page-news__side-nav a:hover {
  color: var(--c-blue);
  padding-left: 0.25rem;
}

.page-news__side-nav a::before {
  content: "→";
  font-family: var(--font-data);
  color: var(--c-purple);
  flex: none;
}

/* ===== 响应式 ===== */
@media (max-width: 480px) {
  .page-news .content-shell {
    padding-inline: 1rem;
  }

  .page-news__section {
    padding: 0.875rem 0.875rem 1.125rem;
  }

  .page-news__entry {
    padding-left: 1.75rem;
  }

  .page-news__entry-card {
    padding: 0.875rem;
  }
}

@media (min-width: 768px) {
  .page-news__hero {
    padding: 1.5rem 0 2rem;
  }

  .page-news__hero-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 2rem;
  }

  .page-news__hero-media {
    transform: rotate(-1.4deg) translateX(8px);
    box-shadow: 14px 14px 0 rgba(139, 92, 246, 0.16);
  }

  .page-news__section {
    padding: 1.25rem 1.375rem 1.5rem;
  }

  .page-news__subscribe-grid {
    grid-template-columns: minmax(0, 1fr) 220px;
  }

  .page-news__subscribe-figure img {
    height: 100%;
    object-fit: cover;
  }

  .page-news__mobile-wrap {
    grid-template-columns: minmax(0, 1fr) 220px;
  }

  .page-news__mobile-figure {
    margin-inline: initial;
    max-width: none;
  }

  .page-news__mobile-figure img {
    height: 100%;
    object-fit: cover;
  }

  .page-news__bottom-cta {
    grid-template-columns: 1fr auto;
    padding: 1.5rem 1.75rem;
  }
}

@media (min-width: 1024px) {
  .page-news__layout {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2.25rem;
  }

  .page-news__side {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
  }

  .page-news__section {
    padding: 1.5rem 1.75rem 1.75rem;
  }

  .page-news__section-title {
    font-size: 1.5rem;
  }

  .page-news__entry-title {
    font-size: 1.125rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news__entry-card,
  .page-news__hero-media,
  .page-news__topics a.badge,
  .page-news__side-link,
  .page-news__side-nav a {
    transition: none;
    transform: none;
  }
}