.page-news {
  display: block;
}

.page-news .crumb {
  padding: 18px 0 0;
  font-size: 13px;
  color: var(--steel);
}

.page-news .crumb a {
  color: var(--steel);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-news .crumb-sep {
  margin: 0 8px;
  opacity: 0.6;
}

.page-news .crumb [aria-current] {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  margin-top: 20px;
  padding: clamp(26px, 5vw, 54px) 0 clamp(28px, 5vw, 52px);
  background:
    radial-gradient(120% 96% at 86% 0%, rgba(63, 224, 206, 0.10), transparent 58%),
    radial-gradient(90% 80% at 4% 100%, rgba(233, 161, 59, 0.08), transparent 60%),
    linear-gradient(180deg, var(--ink-deep), var(--ink));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 42px);
  align-items: center;
}

.page-news .hero-copy .kicker {
  color: var(--amber);
}

.page-news .hero-copy .display {
  margin: 12px 0 16px;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--mist);
  text-wrap: balance;
}

.page-news .hero-copy .lead {
  max-width: 60ch;
  color: var(--mist);
}

.page-news .hero-meta {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--steel);
}

.page-news .hero-shot {
  position: relative;
}

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

.page-news .media-cap,
.page-news .entry-figure .media-cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--steel);
}

/* ---------- 章节通用 ---------- */
.page-news .section {
  scroll-margin-top: 112px;
}

.page-news .section-head .lead {
  max-width: 64ch;
  color: var(--steel);
}

/* ---------- 五个专题分类 ---------- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 8px;
}

.page-news .topic-card {
  display: grid;
  gap: 8px;
  padding: 18px 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--clip-sm);
  color: var(--mist);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-news .topic-card:hover,
.page-news .topic-card:focus-visible {
  background: var(--panel-hi);
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-news .topic-head {
  display: flex;
  align-items: center;
  gap: 9px;
}

.page-news .topic-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
  background: var(--steel);
}

.page-news .topic-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-news .topic-desc {
  font-size: 14px;
  line-height: 1.55;
  color: var(--steel);
}

.page-news .topic-count {
  font-size: 13px;
  color: var(--amber-soft);
}

.page-news .topic-card--version .topic-dot { background: var(--amber); }
.page-news .topic-card--index .topic-dot { background: var(--cyan); }
.page-news .topic-card--path .topic-dot { background: var(--amber-soft); }
.page-news .topic-card--help .topic-dot { background: var(--green); }
.page-news .topic-card--region .topic-dot { background: var(--steel); }

.page-news .topic-reset {
  margin: 16px 0 0;
  font-size: 13px;
}

.page-news .topic-reset a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 206, 0.4);
  padding-bottom: 1px;
}

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

/* ---------- 条目时间轴 ---------- */
.page-news .filter-anchors {
  position: relative;
  height: 0;
  overflow: hidden;
}

.page-news .filter-anchor {
  display: block;
  height: 0;
  scroll-margin-top: 128px;
}

.page-news .timeline {
  position: relative;
  margin-top: 24px;
  padding-left: 22px;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(63, 224, 206, 0.55), rgba(63, 224, 206, 0.10));
}

.page-news .entry {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 15px 0 16px;
  border-bottom: 1px solid var(--line);
  transition: background var(--dur) var(--ease);
}

.page-news .entry-node {
  position: absolute;
  left: -22px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--steel);
  box-shadow: 0 0 0 3px var(--ink);
}

.page-news .entry--version .entry-node { background: var(--amber); }
.page-news .entry--index .entry-node { background: var(--cyan); }
.page-news .entry--path .entry-node { background: var(--amber-soft); }
.page-news .entry--help .entry-node { background: var(--green); }
.page-news .entry--region .entry-node { background: var(--steel); }

.page-news .entry-time {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--steel);
}

.page-news .entry-title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--mist);
}

.page-news .entry-sum {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--steel);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--dur) var(--ease);
}

.page-news .entry:hover .entry-sum,
.page-news .entry:focus-within .entry-sum {
  -webkit-line-clamp: 4;
  color: var(--mist);
}

.page-news .entry .tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-news .entry--version .tag { color: var(--amber); }
.page-news .entry--index .tag { color: var(--cyan); }
.page-news .entry--path .tag { color: var(--amber-soft); }
.page-news .entry--help .tag { color: var(--green); }

.page-news .entry-figure {
  margin: 0;
  padding: 16px 0 18px;
  border-bottom: 1px solid var(--line);
}

.page-news .entry-figure .media-frame {
  border: 1px solid var(--line);
  background: var(--panel);
}

/* 专题筛选（支持 :has 的浏览器生效，否则完整列表照常显示） */
.page-news:has(#f-version:target) .timeline > :not(.entry--version),
.page-news:has(#f-index:target) .timeline > :not(.entry--index),
.page-news:has(#f-path:target) .timeline > :not(.entry--path),
.page-news:has(#f-help:target) .timeline > :not(.entry--help),
.page-news:has(#f-region:target) .timeline > :not(.entry--region) {
  display: none;
}

.page-news:has(#f-version:target) .topic-card[data-cat="version"],
.page-news:has(#f-index:target) .topic-card[data-cat="index"],
.page-news:has(#f-path:target) .topic-card[data-cat="path"],
.page-news:has(#f-help:target) .topic-card[data-cat="help"],
.page-news:has(#f-region:target) .topic-card[data-cat="region"] {
  background: var(--panel-hi);
  border-color: var(--cyan);
}

/* ---------- 版本脉络 ---------- */
.page-news .ver-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  margin-top: 8px;
}

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

.page-news .ver-item {
  position: relative;
  padding: 0 0 24px 24px;
  border-left: 1px solid var(--line-strong);
}

.page-news .ver-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 7px;
  width: 7px;
  height: 7px;
  background: var(--amber);
  transform: rotate(45deg);
}

.page-news .ver-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-news .ver-no {
  display: block;
  font-size: 13px;
  color: var(--amber-soft);
  margin-bottom: 6px;
}

.page-news .ver-item .h-sub {
  margin: 0 0 8px;
  color: var(--mist);
}

.page-news .ver-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--steel);
}

.page-news .ver-figure {
  border: 1px solid var(--line);
  background: var(--panel);
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence-panel {
  padding: clamp(20px, 4vw, 36px);
  background: linear-gradient(180deg, var(--panel), rgba(18, 40, 60, 0.55));
  border: 1px solid var(--line);
  clip-path: var(--clip-cut);
}

.page-news .cadence-panel .section-head .lead {
  margin-bottom: 0;
}

.page-news .cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 26px 0 30px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .cadence-item {
  padding: 20px 0 22px;
  background: transparent;
}

.page-news .cadence-no {
  display: block;
  font-size: 13px;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-news .cadence-item .h-sub {
  margin: 0 0 8px;
  color: var(--mist);
}

.page-news .cadence-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--steel);
}

.page-news .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .next-links .btn {
  font-size: 14px;
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 599px) {
  .page-news .timeline {
    padding-left: 18px;
  }

  .page-news .entry-node {
    left: -18px;
  }

  .page-news .entry-title {
    font-size: 16px;
  }

  .page-news .next-links .btn {
    width: 100%;
    text-align: center;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-news .entry {
    grid-template-columns: 168px minmax(0, 1fr);
    column-gap: 22px;
    padding: 18px 0 19px;
  }

  .page-news .entry-time {
    grid-column: 1;
    text-align: right;
    padding-top: 3px;
  }

  .page-news .entry-body {
    grid-column: 2;
    min-width: 0;
  }

  .page-news .entry-node {
    top: 24px;
  }

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

  .page-news .cadence-item {
    padding: 22px 24px;
  }

  .page-news .cadence-item:first-child {
    padding-left: 0;
  }

  .page-news .cadence-item:last-child {
    padding-right: 0;
  }

  .page-news .cadence-item + .cadence-item {
    border-left: 1px solid var(--line);
  }
}

@media (min-width: 960px) {
  .page-news .hero-inner {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }

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

  .page-news .ver-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topic-card,
  .page-news .entry-sum {
    transition: none;
  }

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