.page-news {
  --news-gap: 32px;
  background: var(--bg);
  color: var(--text);
}

/* 首屏杂志封面区 */
.page-news .news-hero {
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 88% 18%, rgba(247, 213, 30, 0.12), transparent 44%),
    radial-gradient(ellipse at 76% 84%, rgba(111, 191, 68, 0.16), transparent 46%),
    linear-gradient(rgba(45, 64, 51, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 64, 51, 0.12) 1px, transparent 1px);
  background-size: auto, auto, 28px 28px, 28px 28px;
}
.page-news .news-hero__inner {
  display: grid;
  gap: 40px;
}
.page-news .news-hero__title {
  margin: 12px 0 0;
  max-width: 780px;
  font-family: var(--font-display);
  font-size: clamp(44px, 8vw, 88px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.page-news .news-hero__sub {
  display: block;
  margin-top: 8px;
  font-size: 0.34em;
  font-weight: 400;
  color: var(--brand-light);
  letter-spacing: -0.01em;
}
.page-news .news-hero__lead {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--muted);
}
.page-news .news-hero__guide {
  padding: 24px;
  border: 1px solid var(--line);
  background: rgba(20, 33, 26, 0.5);
}
.page-news .news-hero__guide-label {
  display: block;
  font-family: var(--font-index);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.page-news .news-hero__guide-link {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s, padding-left 0.2s;
}
.page-news .news-hero__guide-link:hover,
.page-news .news-hero__guide-link:focus-visible {
  color: var(--brand);
  padding-left: 8px;
}
.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.page-news .stat-block {
  display: grid;
  gap: 6px;
}
.page-news .stat-block__num {
  font-family: var(--font-index);
  font-size: 34px;
  font-weight: 300;
  line-height: 1;
  color: var(--brand-light);
}
.page-news .stat-block:nth-child(2) .stat-block__num {
  color: var(--accent);
}
.page-news .stat-block__label {
  font-size: 12px;
  color: var(--muted);
}
.page-news .breadcrumb__sep {
  margin: 0 10px;
  color: var(--muted);
}

/* 专栏主体两栏 */
.page-news .news-layout {
  display: grid;
  gap: var(--news-gap);
  padding-top: 48px;
  padding-bottom: 64px;
}
.page-news .news-sidebar {
  display: grid;
  gap: 28px;
  padding: 24px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--brand);
  background: rgba(20, 33, 26, 0.4);
}
.page-news .news-sidebar__heading {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.page-news .news-sidebar__heading::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--accent);
}
.page-news .news-sidebar__intro {
  margin: 10px 0 14px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}
.page-news .news-directory {
  display: grid;
}
.page-news .news-directory__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0 14px 2px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  transition: background 0.2s, color 0.2s, padding-left 0.2s;
}
.page-news .news-directory__link:last-child {
  border-bottom: none;
}
.page-news .news-directory__link:hover {
  background: linear-gradient(90deg, rgba(111, 191, 68, 0.07), transparent 80%);
  color: var(--brand);
  padding-left: 8px;
}
.page-news .news-directory__link.is-active {
  color: var(--brand);
}
.page-news .news-directory__link.is-active::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  background: var(--accent);
}
.page-news .news-directory__num {
  font-family: var(--font-index);
  font-size: 12px;
  color: var(--muted);
}
.page-news .news-directory__label {
  font-weight: 500;
}
.page-news .news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .news-tag {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  font-family: var(--font-index);
  font-size: 12px;
  line-height: 1;
  border: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
}
.page-news .news-tag:hover {
  color: var(--text);
  border-color: var(--brand);
  background: rgba(111, 191, 68, 0.08);
}
.page-news .news-tag.is-news-active {
  background: var(--accent);
  color: #10150c;
  border-color: var(--accent);
}

/* 最新更新列表 */
.page-news .news-feed {
  display: grid;
  align-content: start;
  gap: 16px;
  min-width: 0;
}
.page-news .news-feed__header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--line);
}
.page-news .news-feed__title {
  margin: 8px 0 0;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.page-news .news-feed__note {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  text-align: right;
}
.page-news .news-feed__list {
  display: grid;
}
.page-news .news-item {
  position: relative;
  display: grid;
  grid-template-areas:
    "number body"
    "cover cover";
  grid-template-columns: 56px minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 18px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s;
}
.page-news .news-item:last-child {
  border-bottom: none;
}
.page-news .news-item:hover {
  background: linear-gradient(90deg, rgba(111, 191, 68, 0.05), transparent 90%);
}
.page-news .news-item--no-cover {
  grid-template-areas: "number body";
  grid-template-columns: 56px minmax(0, 1fr);
}
.page-news .news-item__number {
  grid-area: number;
  font-family: var(--font-index);
  font-size: 52px;
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(242, 245, 240, 0.14);
  user-select: none;
}
.page-news .news-item__body {
  grid-area: body;
  min-width: 0;
}
.page-news .news-item__cover {
  grid-area: cover;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}
.page-news .news-item__cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.page-news .news-item:hover .news-item__cover img {
  transform: scale(1.03);
}
.page-news .news-item__cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  opacity: 0.9;
}
.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-family: var(--font-index);
  font-size: 12px;
  color: var(--muted);
}
.page-news .news-item__tag {
  display: inline-flex;
  padding: 4px 9px;
  border: 1px solid rgba(111, 191, 68, 0.4);
  color: var(--brand);
  letter-spacing: 0.02em;
}
.page-news .news-item__epoch {
  letter-spacing: 0.04em;
}
.page-news .news-item__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 2.2vw, 30px);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.page-news .news-item:hover .news-item__title {
  color: var(--brand-light);
}
.page-news .news-item__summary {
  margin: 10px 0 0;
  max-height: 3.4em;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  opacity: 0.85;
  transition: max-height 0.35s, opacity 0.35s, color 0.25s;
}
.page-news .news-item:hover .news-item__summary,
.page-news .news-item:focus-within .news-item__summary {
  max-height: 9em;
  opacity: 1;
  color: #cbd6c9;
}
.page-news .news-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-top: 12px;
}
.page-news .news-item__tags span {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
  border-left: 2px solid var(--accent);
  padding-left: 8px;
}

/* 历史归档 */
.page-news .news-archive-section {
  padding: 24px 0 56px;
}
.page-news .news-archive__grid {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}
.page-news .archive-group {
  border: 1px solid var(--line);
  background: var(--panel);
}
.page-news .archive-group summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
}
.page-news .archive-group summary::-webkit-details-marker {
  display: none;
}
.page-news .archive-group[open] {
  border-color: rgba(111, 191, 68, 0.45);
}
.page-news .archive-group[open] summary {
  border-bottom: 1px solid var(--line);
}
.page-news .archive-group__marker {
  font-family: var(--font-index);
  font-size: 18px;
  color: var(--accent);
  line-height: 1;
  transition: transform 0.2s;
}
.page-news .archive-group[open] .archive-group__marker {
  transform: rotate(45deg);
}
.page-news .archive-group__title {
  font-weight: 600;
  font-size: 16px;
}
.page-news .archive-group__meta {
  margin-left: auto;
  font-family: var(--font-index);
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 3px 8px;
}
.page-news .archive-list {
  list-style: none;
  margin: 0;
  padding: 4px 20px 18px;
  display: grid;
  gap: 0;
}
.page-news .archive-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.page-news .archive-list li:last-child {
  border-bottom: none;
}
.page-news .archive-list__title {
  color: var(--text);
  line-height: 1.5;
}
.page-news .archive-list__meta {
  flex-shrink: 0;
  font-family: var(--font-index);
  font-size: 12px;
  color: var(--muted);
}

/* 帮助入口 */
.page-news .news-help {
  display: grid;
  gap: 20px;
  margin-top: 40px;
  padding: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(111, 191, 68, 0.06), transparent 40%), var(--panel);
}
.page-news .news-help__title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.page-news .news-help__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 640px;
}
.page-news .news-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 768px) {
  .page-news .news-hero {
    padding: 72px 0 64px;
  }
  .page-news .news-hero__stats {
    gap: 24px;
  }
  .page-news .news-layout {
    padding-top: 64px;
  }
  .page-news .news-archive__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news .news-archive__grid .archive-group:last-child {
    grid-column: 1 / -1;
  }
  .page-news .news-help {
    padding: 32px;
  }
  .page-news .news-item {
    grid-template-columns: 64px minmax(0, 1fr);
  }
}

@media (min-width: 992px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 56px;
    align-items: end;
  }
  .page-news .news-hero__stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-news .news-layout {
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 48px;
    padding-top: 72px;
  }
  .page-news .news-sidebar {
    position: sticky;
    top: 24px;
    align-self: start;
    max-height: calc(100vh - 48px);
    overflow: auto;
  }
  .page-news .news-item {
    grid-template-areas: "number cover body";
    grid-template-columns: 88px 220px minmax(0, 1fr);
    column-gap: 28px;
    row-gap: 0;
    align-items: center;
    padding: 36px 0;
  }
  .page-news .news-item--no-cover {
    grid-template-areas: "number body";
    grid-template-columns: 88px minmax(0, 1fr);
  }
  .page-news .news-item__number {
    font-size: 72px;
  }
  .page-news .news-help {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}