.page-news {
  --news-line-soft: rgba(216, 214, 206, 0.7);
  padding-bottom: var(--sp-7);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-news .news-head {
  padding-top: var(--sp-5);
  padding-bottom: var(--sp-5);
}

.page-news .news-head__title {
  max-width: 15em;
  margin: var(--sp-3) 0 var(--sp-4);
}

.page-news .news-head__lede {
  max-width: 46em;
}

.page-news .news-head__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-6);
  margin: var(--sp-5) 0 0;
  padding: var(--sp-4) 0 0;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-news .news-head__stats li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-news .news-head__stats b {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--moss-deep);
  font-variant-numeric: tabular-nums;
}

/* ---------- 章节索引条 ---------- */
.page-news .news-index {
  position: sticky;
  top: calc(var(--top-h) + var(--rail-h));
  z-index: 20;
  background: rgba(245, 244, 240, 0.94);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-index__list {
  list-style: none;
  display: flex;
  gap: var(--sp-2);
  margin: 0;
  padding: var(--sp-2) 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .news-index__list::-webkit-scrollbar {
  display: none;
}

.page-news .news-index__list li {
  flex: 0 0 auto;
}

.page-news .news-index a.pill {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-cap);
  background: #fff;
  color: var(--ink-soft);
  font-family: var(--font-nav);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background 160ms var(--ease);
}

.page-news .news-index a.pill:hover {
  border-color: var(--orange);
  color: var(--orange-act);
}

.page-news .news-index a.pill[aria-current="true"] {
  background: var(--orange-soft);
  border-color: var(--orange);
  color: var(--orange-act);
  font-weight: 700;
}

/* ---------- 区块通用 ---------- */
.page-news .news-sub {
  margin: var(--sp-2) 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-banner,
.page-news .news-figure {
  margin: 0 0 var(--sp-5);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  line-height: 0;
  background: var(--moss-mist);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 280px);
  object-fit: cover;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  height: clamp(140px, 22vw, 260px);
  object-fit: cover;
}

.page-news .news-figure--soft img {
  height: clamp(120px, 18vw, 210px);
  opacity: 0.92;
}

/* ---------- 本期摘要 ---------- */
.page-news .issue-board {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

.page-news .issue-card {
  position: relative;
  padding: var(--sp-5);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  overflow: hidden;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .issue-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--cyan);
}

.page-news .issue-card:nth-child(2)::before {
  background: var(--moss);
}

.page-news .issue-card:nth-child(3)::before {
  background: var(--orange);
}

.page-news .issue-card:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
}

.page-news .issue-card__tag {
  margin: 0 0 var(--sp-2);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-news .issue-card__title {
  margin: 0 0 var(--sp-3);
  font-size: 19px;
  line-height: 1.4;
}

.page-news .issue-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 版本发布列表 ---------- */
.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .log-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: var(--sp-3);
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--line);
  transition: background 160ms var(--ease);
}

.page-news .log-item:hover {
  background: rgba(221, 231, 222, 0.35);
}

.page-news .log-item__num {
  padding-top: 4px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-news .log-item__top {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--sp-2);
}

.page-news .log-tag {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-cap);
  background: #fff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-news .log-tag--now {
  background: var(--orange-soft);
  border-color: var(--orange);
  color: var(--orange-act);
  font-weight: 700;
}

.page-news .log-tag--cat {
  background: var(--moss-mist);
  border-color: transparent;
  color: var(--moss-deep);
}

.page-news .log-item__title {
  margin: 0 0 var(--sp-2);
  font-size: 18px;
  line-height: 1.45;
}

.page-news .log-item__title a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .log-item__title a:hover {
  color: var(--orange-act);
  border-bottom-color: var(--orange);
}

.page-news .log-item__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 栏目与目录调整 ---------- */
.page-news .news-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

.page-news .news-compare__col {
  padding: var(--sp-5);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

.page-news .news-compare__col--old {
  background: var(--moss-mist);
}

.page-news .news-compare__col--new {
  background: #fff;
}

.page-news .news-compare__tag {
  margin: 0 0 var(--sp-3);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--moss-deep);
}

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

.page-news .news-compare__list li {
  position: relative;
  padding: var(--sp-3) 0 var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--news-line-soft);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .news-compare__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .news-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.35em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-news .note {
  margin-top: var(--sp-5);
}

/* ---------- 使用观察 ---------- */
.page-news .data-bar {
  margin-bottom: var(--sp-5);
}

.page-news .data-num .data-unit {
  font-size: 0.42em;
  margin-left: 2px;
  color: var(--ink-soft);
}

.page-news .obs-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .obs-list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: var(--sp-2);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .obs-list li::before {
  content: "→";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--orange);
  line-height: 1.9;
}

/* ---------- 专题系列 ---------- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

.page-news .topic-card {
  position: relative;
  padding: var(--sp-5);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  overflow: hidden;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .topic-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 48px;
  background: repeating-linear-gradient(
    180deg,
    rgba(61, 107, 78, 0.13) 0 1px,
    transparent 1px 8px
  );
  pointer-events: none;
}

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

.page-news .topic-card__no {
  display: block;
  margin-bottom: var(--sp-3);
  font-size: 40px;
  line-height: 1;
  font-weight: 700;
  color: var(--moss-mist);
  letter-spacing: -0.02em;
}

.page-news .topic-card h3 {
  margin: 0 0 var(--sp-2);
  font-size: 19px;
  line-height: 1.4;
}

.page-news .topic-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 订阅与回看 ---------- */
.page-news .follow-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
  padding: var(--sp-6) var(--sp-5);
  border-radius: var(--r-lg);
  background: var(--moss-deep);
  color: #fff;
}

.page-news .eyebrow--light {
  color: var(--cyan);
}

.page-news .follow-panel__text h2 {
  margin: var(--sp-2) 0 var(--sp-3);
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.25;
  color: #fff;
}

.page-news .follow-panel__text p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.82);
}

.page-news .follow-panel__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sp-4);
}

.page-news .follow-panel__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.7);
}

.page-news .follow-panel__mail .mono {
  color: #fff;
  font-size: 13px;
  word-break: break-all;
}

.page-news .copy-btn {
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: var(--r-cap);
  background: transparent;
  color: #fff;
  font-family: var(--font-nav);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-news .copy-btn:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.page-news .copy-btn[data-copied] {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .back-top {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-news .back-top::before {
  content: "↑";
}

.page-news .back-top:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-news .news-head {
    padding-top: var(--sp-6);
  }

  .page-news .issue-board {
    grid-template-columns: repeat(12, 1fr);
    gap: var(--sp-4);
  }

  .page-news .issue-card:nth-child(1) {
    grid-column: 1 / span 5;
  }

  .page-news .issue-card:nth-child(2) {
    grid-column: 6 / span 7;
  }

  .page-news .issue-card:nth-child(3) {
    grid-column: 3 / span 8;
    margin-top: var(--sp-4);
  }

  .page-news .log-item {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: var(--sp-4);
    padding: var(--sp-5) 0;
  }

  .page-news .log-item__title {
    font-size: 20px;
  }

  .page-news .news-compare {
    grid-template-columns: 1fr 1fr;
    position: relative;
  }

  .page-news .news-compare::after {
    content: "";
    position: absolute;
    left: 50%;
    top: var(--sp-4);
    bottom: var(--sp-4);
    border-left: 1px dashed var(--line);
    pointer-events: none;
  }

  .page-news .obs-list li {
    grid-template-columns: 32px minmax(0, 1fr);
    font-size: 16px;
  }

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

  .page-news .follow-panel {
    grid-template-columns: 7fr 5fr;
    align-items: center;
    gap: var(--sp-6);
    padding: var(--sp-7) var(--sp-6);
  }
}

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

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