/* =====================================================
   page-news · 行业观察
   杂志式图文列表 / 横向滚动专题胶片 / 档案式更新日志
   移动端优先，桌面端增强
===================================================== */

.page-news {
  --news-gold-soft: rgba(226, 192, 126, 0.55);
  --news-panel-deep: #0d2230;

  background:
    radial-gradient(ellipse at 88% 2%, rgba(226, 192, 126, 0.09), transparent 38%),
    radial-gradient(ellipse at 4% 42%, rgba(30, 155, 119, 0.05), transparent 40%),
    linear-gradient(180deg, var(--bg-ink) 0%, var(--bg-abyss) 100%);
  color: var(--text-light);
}

/* ---------- 面包屑 ---------- */

.page-news .news-breadcrumb {
  padding-top: calc(var(--header-total) + 28px);
  padding-bottom: 4px;
}

/* ---------- 杂志封面标题区 ---------- */

.page-news .news-cover {
  padding: 56px 0 64px;
}

.page-news .news-cover__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: end;
}

.page-news .news-cover__text {
  max-width: 680px;
}

.page-news .news-cover .kicker {
  margin-bottom: 16px;
}

.page-news .news-cover h1 {
  font-family: var(--font-headings);
  font-size: clamp(2.25rem, 5.6vw, 4.1rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 20px;
  max-width: 8em;
}

.page-news .news-cover__lead {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 40em;
  margin: 0 0 28px;
}

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

.page-news .news-cover__meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  background: var(--bg-panel);
  overflow: hidden;
}

.page-news .news-cover__stat {
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
  border-left: 1px solid var(--line-gold);
}

.page-news .news-cover__stat:first-child {
  border-left: 0;
}

.page-news .news-cover__stat-num {
  font-size: 2rem;
  line-height: 1;
  color: var(--gold-bright);
}

.page-news .news-cover__stat-label {
  font-size: 0.8125rem;
  margin-top: 8px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

/* ---------- 最新动态 ---------- */

.page-news .news-latest {
  padding: 72px 0;
}

.page-news .news-latest__heading {
  margin-bottom: 28px;
}

.page-news .news-latest__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px 40px;
}

/* 筛选栏 */
.page-news .news-latest__filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.page-news .news-latest__filter-label {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--line-gold);
  border-radius: 999px;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.875rem;
  line-height: 1.4;
  transition:
    border-color 0.3s ease,
    color 0.3s ease,
    background 0.3s ease;
}

.page-news .news-latest__filter-label:hover {
  border-color: var(--gold-bright);
  color: var(--gold-bright);
}

.page-news #filter-all:checked ~ .news-latest__filter-bar label[for="filter-all"],
.page-news #filter-security:checked ~ .news-latest__filter-bar label[for="filter-security"],
.page-news #filter-version:checked ~ .news-latest__filter-bar label[for="filter-version"],
.page-news #filter-member:checked ~ .news-latest__filter-bar label[for="filter-member"] {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-shadow));
  border-color: transparent;
  color: var(--bg-ink);
  font-weight: 600;
}

/* 筛选逻辑：纯 CSS，无 JS 也可用 */
.page-news .news-latest__filter-input:checked ~ .news-latest__list .news-item {
  display: none;
}

.page-news #filter-all:checked ~ .news-latest__list .news-item,
.page-news #filter-security:checked ~ .news-latest__list .news-item[data-cat="安全通告"],
.page-news #filter-version:checked ~ .news-latest__list .news-item[data-cat="版本更新"],
.page-news #filter-member:checked ~ .news-latest__list .news-item[data-cat="会员服务"] {
  display: grid;
}

/* 短讯条目 */
.page-news .news-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-gold);
  align-items: start;
}

.page-news .news-item__index {
  font-size: 1rem;
  color: var(--news-gold-soft);
  line-height: 1.6;
  padding-top: 2px;
}

.page-news .news-item__top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.page-news .news-item__tag {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--line-gold);
  color: var(--gold-bright);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  border-radius: 2px;
}

.page-news .news-item[data-cat="安全通告"] .news-item__tag {
  border-color: rgba(30, 155, 119, 0.55);
  color: var(--emerald);
}

.page-news .news-item[data-cat="会员服务"] .news-item__tag {
  border-color: rgba(30, 155, 119, 0.35);
  color: var(--text-light);
}

.page-news .news-item__date {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-data);
}

.page-news .news-item__title {
  font-family: var(--font-headings);
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 8px;
}

.page-news .news-item__desc {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0;
  max-width: 40em;
}

.page-news .news-item__thumb {
  margin-top: 16px;
}

.page-news .news-item__thumb img {
  display: block;
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line-gold);
}

/* 右侧活动卡片 */
.page-news .news-latest__aside {
  display: flex;
  flex-direction: column;
}

.page-news .news-latest__activity {
  overflow: hidden;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  background: var(--bg-panel);
  box-shadow: 0 16px 32px rgba(2, 8, 14, 0.35);
}

.page-news .news-latest__activity img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--line-gold);
}

.page-news .news-latest__activity-body {
  padding: 24px;
}

.page-news .news-latest__activity-body .kicker {
  margin-bottom: 10px;
}

.page-news .news-latest__activity-body h3 {
  font-family: var(--font-headings);
  font-size: 1.5rem;
  line-height: 1.4;
  margin: 0 0 12px;
}

.page-news .news-latest__activity-body p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0 0 16px;
}

/* ---------- 专题系列 ---------- */

.page-news .news-series {
  padding: 72px 0;
  background: rgba(7, 21, 33, 0.68);
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-gold);
}

.page-news .news-series .section-heading {
  margin-bottom: 28px;
}

/* 移动端横向胶片滚动 */
.page-news .series-feed {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 4px 4px 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-news .series-feed::-webkit-scrollbar {
  height: 4px;
}

.page-news .series-feed::-webkit-scrollbar-track {
  background: rgba(226, 192, 126, 0.08);
}

.page-news .series-feed::-webkit-scrollbar-thumb {
  background: var(--gold-shadow);
  border-radius: 4px;
}

.page-news .series-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  background: var(--news-panel-deep);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius);
  overflow: hidden;
  transition:
    transform 0.3s var(--ease-out),
    box-shadow 0.3s var(--ease-out);
}

.page-news .series-card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 18px 36px rgba(2, 8, 14, 0.3),
    0 0 0 1px rgba(226, 192, 126, 0.14);
}

.page-news .series-card__cover {
  overflow: hidden;
}

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

.page-news .series-card__body {
  padding: 24px;
}

.page-news .series-card__badge {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--gold-bright);
  border: 1px solid var(--line-gold);
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 12px;
  letter-spacing: 0.18em;
  text-indent: 0.18em;
}

.page-news .series-card__body h3 {
  font-family: var(--font-headings);
  font-size: 1.25rem;
  line-height: 1.5;
  margin: 0 0 10px;
}

.page-news .series-card__body > p {
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0;
}

/* 展开交互 details/summary */
.page-news .series-card__detail,
.page-news .changelog-item__detail {
  margin-top: 14px;
  border-top: 1px solid var(--line-gold);
}

.page-news .series-card__detail summary,
.page-news .changelog-item__detail summary {
  cursor: pointer;
  list-style: none;
  display: inline-block;
  font-size: 0.875rem;
  color: var(--gold-bright);
  padding: 10px 0;
  transition: color 0.3s ease;
}

.page-news .series-card__detail summary::-webkit-details-marker,
.page-news .changelog-item__detail summary::-webkit-details-marker {
  display: none;
}

.page-news .series-card__detail summary::before,
.page-news .changelog-item__detail summary::before {
  content: "+";
  margin-right: 8px;
  font-family: var(--font-data);
  color: var(--gold-bright);
}

.page-news .series-card__detail[open] summary,
.page-news .changelog-item__detail[open] summary {
  color: var(--emerald);
}

.page-news .series-card__detail[open] summary::before,
.page-news .changelog-item__detail[open] summary::before {
  content: "–";
  color: var(--emerald);
}

.page-news .series-card__detail ul,
.page-news .changelog-item__detail ul {
  margin: 0;
  padding: 8px 0 12px 18px;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 更新日志 ---------- */

.page-news .news-changelog {
  padding: 72px 0;
}

.page-news .news-changelog .section-heading {
  margin-bottom: 28px;
}

.page-news .changelog-list {
  margin-top: 12px;
}

.page-news .changelog-item {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 4px 18px;
  padding: 28px 0 28px 4px;
  border-bottom: 1px solid var(--line-gold);
}

.page-news .changelog-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  bottom: 20px;
  width: 1px;
  background: linear-gradient(
    180deg,
    var(--gold-bright),
    rgba(226, 192, 126, 0.08)
  );
}

.page-news .changelog-item__mark {
  font-family: var(--font-data);
  font-size: 1.625rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold-bright);
  opacity: 0.45;
  -webkit-text-stroke: 1px rgba(226, 192, 126, 0.55);
}

.page-news .changelog-item__content h3 {
  font-family: var(--font-headings);
  font-size: 1.375rem;
  margin: 0 0 8px;
}

.page-news .changelog-item__content > p,
.page-news .changelog-item__intro > p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-dim);
  margin: 0;
}

/* 重点版本条：缩略图 + 简介 */
.page-news .changelog-item--featured {
  background: linear-gradient(
    135deg,
    rgba(226, 192, 126, 0.06),
    transparent 55%
  );
  border-radius: var(--radius);
  padding: 28px 20px 8px 24px;
  border: 1px solid var(--line-gold);
}

.page-news .changelog-item--featured::before {
  left: 8px;
  top: 32px;
}

.page-news .changelog-item--featured .changelog-item__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-bottom: 4px;
}

.page-news .changelog-item__thumb img {
  display: block;
  width: 100%;
  max-width: 160px;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line-gold);
}

.page-news .changelog-note {
  margin-top: 32px;
}

.page-news .changelog-note a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 底部相关入口 ---------- */

.page-news .news-links {
  padding: 64px 0 96px;
  border-top: 1px solid var(--line-gold);
}

.page-news .news-links__inner .kicker {
  margin-bottom: 14px;
}

.page-news .news-links__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.page-news .news-links__card {
  display: flex;
  flex-direction: column;
  padding: 22px 24px;
  background: var(--news-panel-deep);
  text-decoration: none;
  border: 1px solid var(--line-gold);
  transition:
    transform 0.3s var(--ease-out),
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}

.page-news .news-links__card:hover {
  transform: translateY(-4px);
  border-color: var(--gold-bright);
  box-shadow: 0 14px 28px rgba(2, 8, 14, 0.35);
}

.page-news .news-links__card-title {
  font-family: var(--font-headings);
  font-size: 1.125rem;
  color: var(--gold-bright);
  margin-bottom: 6px;
}

.page-news .news-links__card-desc {
  font-size: 0.875rem;
  color: var(--text-dim);
}

/* ---------- 中等及以上尺寸 ---------- */

@media (min-width: 640px) {
  .page-news .news-cover__inner {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .changelog-item--featured .changelog-item__head {
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .page-news .series-card {
    flex-basis: 320px;
  }

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

@media (min-width: 1024px) {
  .page-news .news-cover {
    padding: 72px 0 88px;
  }

  .page-news .news-cover__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.9fr);
    gap: 72px;
  }

  .page-news .news-latest {
    padding: 96px 0;
  }

  .page-news .news-latest__grid {
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: start;
  }

  .page-news .news-latest__aside {
    position: sticky;
    top: calc(var(--header-total) + 24px);
  }

  /* 桌面端专题由横向胶片转为三列网格 */
  .page-news .series-feed {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    overflow: visible;
    padding: 0;
  }

  .page-news .series-card {
    flex: none;
  }

  .page-news .news-series {
    padding: 96px 0;
  }

  .page-news .news-changelog {
    padding: 96px 0;
  }

  .page-news .news-links {
    padding: 88px 0 112px;
  }

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