.page-news {
  display: block;
}

/* ---------- 面包屑间距 ---------- */
.page-news .breadcrumb {
  padding: 18px 0 0;
}

/* ---------- 封面 ---------- */
.page-news .news-cover {
  padding: clamp(20px, 3.5vw, 40px) 0 0;
  background:
    linear-gradient(180deg, rgba(44, 242, 200, .06), rgba(4, 18, 15, 0) 62%),
    var(--ink-950);
}

.page-news .cover-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-news .cover-head {
  order: 1;
}

.page-news .cover-rail {
  order: 2;
}

.page-news .cover-feature {
  order: 3;
}

.page-news .cover-title {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(36px, 8.4vw, 72px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper-100);
  text-wrap: balance;
}

.page-news .cover-title em {
  font-style: normal;
  color: var(--cyan-400);
}

.page-news .cover-intro {
  margin: 0;
  max-width: 38ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-400);
}

.page-news .cover-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* 栏目索引 —— 移动端横向滑动 */
.page-news .cover-rail__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist-400);
  text-transform: uppercase;
}

.page-news .cover-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-news .cover-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  color: var(--paper-100);
  text-decoration: none;
  font-size: 14px;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-news .cover-rail__link:hover,
.page-news .cover-rail__link:focus-visible {
  border-color: var(--cyan-400);
  background: rgba(44, 242, 200, .08);
  transform: translateY(-2px);
}

.page-news .cover-rail__no {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--orange-500);
  letter-spacing: .04em;
}

.page-news .cover-rail__name {
  font-weight: 600;
}

.page-news .cover-rail__meta {
  display: none;
}

/* 专题条目 */
.page-news .cover-feature {
  border: 1px solid var(--line-soft);
  background: var(--ink-900);
}

.page-news .cover-feature__body {
  padding: 16px 18px 20px;
}

.page-news .cover-feature__meta {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber-300);
}

.page-news .cover-feature__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper-100);
}

.page-news .cover-feature__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-400);
}

.page-news .cover-feature__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-700);
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-news .cover-feature__link:hover {
  color: var(--orange-500);
  border-color: var(--orange-500);
}

/* 关键数字条 */
.page-news .cover-stats {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line-soft);
}

.page-news .cover-stats li {
  padding: 16px 18px;
  border-right: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-news .cover-stats strong {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  line-height: 1.05;
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
}

.page-news .cover-stats span {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist-400);
}

/* ---------- 直达栏目 ---------- */
.page-news .news-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
}

.page-news .news-jump__label {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist-400);
  margin-right: 4px;
}

/* ---------- 栏目区块 ---------- */
.page-news .news-section {
  padding: clamp(38px, 6vw, 68px) 0 0;
  margin-top: clamp(34px, 5vw, 56px);
  border-top: 1px solid var(--line);
}

.page-news .news-section__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 26px;
  padding-left: 16px;
  border-left: 2px solid var(--cyan-700);
}

.page-news .news-section__head .section__title {
  margin: 6px 0 10px;
}

.page-news .news-section__head .section__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist-400);
}

.page-news .news-section__media {
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--line-soft);
}

/* ---------- 条目流 ---------- */
.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-news .log-item details {
  border: 1px solid var(--line-soft);
  background: var(--ink-900);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-news .log-item details:hover {
  border-color: var(--cyan-700);
  transform: translateX(2px);
}

.page-news .log-item details[open] {
  border-color: var(--cyan-400);
  background: var(--ink-800);
}

.page-news .log-item .fold__summary {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: baseline;
  gap: 3px 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

.page-news .log-item .fold__summary::-webkit-details-marker {
  display: none;
}

.page-news .log-item .fold__summary::marker {
  content: "";
}

.page-news .log-item__no {
  grid-row: 1 / span 2;
  grid-column: 1;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan-700);
}

.page-news .log-item details[open] .log-item__no {
  color: var(--orange-500);
}

.page-news .log-item__title {
  grid-column: 2;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper-100);
}

.page-news .log-item__meta {
  grid-column: 2;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist-400);
}

.page-news .log-item .fold__body {
  padding: 0 16px 18px 60px;
}

.page-news .log-item .fold__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-400);
}

.page-news .log-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin: 14px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .log-facts > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .log-facts dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist-400);
}

.page-news .log-facts dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 600;
  color: var(--amber-300);
  font-variant-numeric: tabular-nums;
}

/* ---------- 回溯与订阅 ---------- */
.page-news .follow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-news .follow-panel {
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--cyan-700);
  background: var(--ink-900);
  padding: 22px 20px 24px;
}

.page-news .follow-panel--accent {
  border-top-color: var(--orange-500);
  background:
    linear-gradient(200deg, rgba(255, 122, 26, .1), rgba(7, 32, 27, 0) 58%),
    var(--ink-900);
}

.page-news .follow-panel__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper-100);
}

.page-news .follow-panel p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist-400);
}

.page-news .follow-panel__mail {
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--cyan-400);
  letter-spacing: .01em;
  word-break: break-all;
}

.page-news .follow-panel__meta {
  margin: 0;
  font-size: 12px;
  color: var(--mist-400);
}

.page-news .follow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-news .follow-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-news .follow-steps__no {
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--orange-500);
  padding-top: 3px;
}

.page-news .follow-steps strong {
  grid-column: 2;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper-100);
}

.page-news .follow-steps em {
  grid-column: 2;
  font-style: normal;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-400);
}

.page-news .news-tail {
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--cyan-400);
  background: var(--ink-800);
}

.page-news .news-tail p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist-400);
}

.page-news .news-tail a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-700);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-news .news-tail a:hover {
  color: var(--orange-500);
  border-color: var(--orange-500);
}

/* ---------- 平板 ---------- */
@media (min-width: 768px) {
  .page-news .cover-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-section__head--split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
    gap: 34px;
  }

  .page-news .news-section__head--flip > .news-section__media {
    order: -1;
  }

  .page-news .news-section__media {
    max-width: none;
  }

  .page-news .follow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-news .cover-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0;
  }

  .page-news .cover-head {
    grid-column: 1 / span 4;
    order: 0;
    padding-right: 30px;
  }

  .page-news .cover-rail {
    grid-column: 5 / span 3;
    order: 0;
    padding: 0 24px;
    border-left: 1px solid var(--line-soft);
    border-right: 1px solid var(--line-soft);
  }

  .page-news .cover-feature {
    grid-column: 8 / span 5;
    order: 0;
    margin-left: 30px;
  }

  .page-news .cover-rail__label {
    margin-bottom: 14px;
  }

  .page-news .cover-rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .cover-rail__list li + li {
    margin-top: 2px;
  }

  .page-news .cover-rail__link {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 3px 12px;
    white-space: normal;
    padding: 11px 10px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
  }

  .page-news .cover-rail__link:hover,
  .page-news .cover-rail__link:focus-visible {
    background: rgba(44, 242, 200, .06);
    border-left-color: var(--cyan-400);
    transform: none;
  }

  .page-news .cover-rail__no {
    grid-row: 1 / span 2;
    padding-top: 2px;
  }

  .page-news .cover-rail__name {
    grid-column: 2;
  }

  .page-news .cover-rail__meta {
    display: block;
    grid-column: 2;
    font-size: 12px;
    line-height: 1.6;
    color: var(--mist-400);
  }

  /* 错位条目流 */
  .page-news .log-list {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0;
    align-items: start;
  }

  .page-news .log-item {
    grid-column: 1 / span 7;
  }

  .page-news .log-item:nth-child(even) {
    grid-column: 6 / span 7;
  }

  .page-news .log-item + .log-item {
    margin-top: 14px;
  }

  .page-news .news-section__head {
    padding-left: 20px;
  }
}

@media (min-width: 1280px) {
  .page-news .cover-feature {
    margin-left: 0;
  }

  .page-news .log-item {
    grid-column: 1 / span 6;
  }

  .page-news .log-item:nth-child(even) {
    grid-column: 7 / span 6;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .cover-rail__link,
  .page-news .log-item details,
  .page-news .cover-feature__link,
  .page-news .news-tail a {
    transition: none;
  }

  .page-news .log-item details:hover {
    transform: none;
  }
}