.page-news {
  --news-axis: 2px;
  --news-dot: 12px;
  --news-hover: #16304a;
  padding-bottom: clamp(56px, 9vw, 104px);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumbs {
  padding-top: clamp(14px, 2.4vw, 24px);
  margin: 0;
  font-size: 13px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: clamp(20px, 3.4vw, 36px);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(18px, 3vw, 36px);
  padding-bottom: clamp(20px, 3vw, 34px);
}

.page-news .news-hero__index {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 0 0;
  border-top: 3px solid var(--cyan);
}

.page-news .news-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-news .news-hero__period {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.6vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--amber);
}

.page-news .news-hero__state {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-news .news-hero__title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: clamp(27px, 4.8vw, 46px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-news .news-hero__lead {
  margin: 0 0 20px;
  max-width: 42em;
  font-size: clamp(15.5px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--paper);
}

.page-news .news-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-hero__figure {
  margin: clamp(16px, 2.6vw, 28px) 0 0;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-news .media-frame {
  background: var(--ink-2);
}

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

/* ---------- 章节标题通用 ---------- */
.page-news .news-sec {
  padding-top: clamp(40px, 6vw, 76px);
}

.page-news .news-sec__head {
  display: grid;
  gap: 6px;
  padding-top: 16px;
  margin-bottom: clamp(20px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.page-news .news-sec__no {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-news .news-sec__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.8vw, 29px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-news .news-sec__desc {
  margin: 0;
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 本期主更新 ---------- */
.page-news .news-top__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-news .news-top__main {
  padding: clamp(18px, 2.6vw, 30px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-hard);
  position: relative;
}

.page-news .news-top__main::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--amber);
}

.page-news .news-top__flag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-news .news-top__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.5vw, 27px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-news .news-top__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--paper);
}

.page-news .news-top__facts {
  margin: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-news .fact {
  display: grid;
  grid-template-columns: minmax(0, 9em) minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .fact dt {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-news .fact dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
}

.page-news .news-top__link {
  margin: 20px 0 0;
}

.page-news .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.4);
  padding-bottom: 2px;
  transition: border-color var(--ease), color var(--ease);
}

.page-news .inline-link:hover,
.page-news .inline-link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--amber);
}

.page-news .news-top__fig {
  border: 1px solid var(--line);
}

/* ---------- 五类标签索引 ---------- */
.page-news .lane-list {
  display: grid;
  gap: 12px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  list-style: none;
}

.page-news .lane {
  position: relative;
  padding: 16px 16px 18px 22px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-news .lane::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lane-color, var(--cyan));
  transition: width var(--ease);
}

.page-news .lane:nth-child(1) { --lane-color: var(--cyan); }
.page-news .lane:nth-child(2) { --lane-color: var(--amber); }
.page-news .lane:nth-child(3) { --lane-color: var(--verify); }
.page-news .lane:nth-child(4) { --lane-color: var(--warn); }
.page-news .lane:nth-child(5) { --lane-color: var(--muted); }

.page-news .lane:hover,
.page-news .lane:focus-within {
  border-color: var(--cyan);
  background: var(--news-hover);
}

.page-news .lane:hover::before,
.page-news .lane:focus-within::before {
  width: 5px;
}

.page-news .lane__k {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-news .lane__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-news .lane__desc {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .lane__meta {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--warn);
}

.page-news .lane__link {
  margin: 0;
  font-size: 13.5px;
}

.page-news .news-lanes__fig {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 时间轴 ---------- */
.page-news .timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: var(--news-axis);
  background: linear-gradient(to bottom, var(--cyan) 0%, var(--line) 16%, var(--line) 100%);
}

.page-news .timeline__item {
  position: relative;
  padding-bottom: clamp(18px, 2.8vw, 32px);
}

.page-news .timeline__item::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 9px;
  width: var(--news-dot);
  height: var(--news-dot);
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  transform: translateX(-50%);
  transition: background-color var(--ease), border-color var(--ease);
}

.page-news .timeline__item:nth-child(2)::before { border-color: var(--amber); }
.page-news .timeline__item:nth-child(3)::before { border-color: var(--verify); }
.page-news .timeline__item:nth-child(4)::before { border-color: var(--warn); }
.page-news .timeline__item:nth-child(5)::before { border-color: var(--muted); }
.page-news .timeline__item:nth-child(6)::before { border-color: var(--line); }

.page-news .timeline__item:nth-child(1)::before {
  background: var(--cyan);
}

.page-news .timeline__item:hover::before {
  background: var(--amber);
  border-color: var(--amber);
}

.page-news .timeline__card {
  position: relative;
  padding: clamp(15px, 2.2vw, 24px);
  padding-left: calc(clamp(15px, 2.2vw, 24px) + 8px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-news .timeline__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--lane, var(--cyan));
  transition: width var(--ease);
}

.page-news .timeline__item:nth-child(2) .timeline__card { --lane: var(--amber); }
.page-news .timeline__item:nth-child(3) .timeline__card { --lane: var(--verify); }
.page-news .timeline__item:nth-child(4) .timeline__card { --lane: var(--warn); }
.page-news .timeline__item:nth-child(5) .timeline__card { --lane: var(--muted); }
.page-news .timeline__item:nth-child(6) .timeline__card { --lane: var(--line); }

.page-news .timeline__card:hover {
  border-color: var(--cyan);
  background: var(--news-hover);
}

.page-news .timeline__card:hover::before {
  width: 5px;
}

.page-news .timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .timeline__period {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-news .timeline__when {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

.page-news .timeline__scope {
  margin: 0 0 6px;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--muted);
}

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

.page-news .entry {
  display: grid;
  grid-template-columns: 4.8em minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}

.page-news .entry:first-child {
  border-top: 0;
}

.page-news .entry__idx {
  padding-top: 3px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--amber);
}

.page-news .entry__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

/* 折叠面板 */
.page-news .fold {
  margin-top: 12px;
  border-top: 1px solid var(--line);
}

.page-news .fold__sum {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
  transition: color var(--ease);
}

.page-news .fold__sum::-webkit-details-marker {
  display: none;
}

.page-news .fold__sum::before {
  content: "+";
  display: inline-block;
  width: 14px;
  font-weight: 700;
  color: var(--amber);
}

.page-news .fold[open] .fold__sum::before {
  content: "–";
}

.page-news .fold__sum:hover,
.page-news .fold__sum:focus-visible {
  color: var(--paper);
}

.page-news .fold__list {
  display: grid;
  gap: 0;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}

.page-news .fold__row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--muted);
}

.page-news .fold__row .mono {
  color: var(--paper);
}

/* ---------- 固定专题 ---------- */
.page-news .series-grid {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .series {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
}

.page-news .series:nth-child(2) {
  border-top-color: var(--warn);
}

.page-news .series__code {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-news .series__title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-news .series__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
}

.page-news .series__list {
  display: grid;
  gap: 9px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .series__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-news .series__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.page-news .series:nth-child(2) .series__list li::before {
  background: var(--warn);
}

.page-news .news-series__fig {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 更新提醒 ---------- */
.page-news .watch-grid {
  display: grid;
  gap: 14px;
}

.page-news .watch-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: clamp(16px, 2.2vw, 24px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  transition: border-color var(--ease), background-color var(--ease);
}

.page-news .watch-card:nth-child(2) {
  border-left-color: var(--amber);
}

.page-news .watch-card:nth-child(3) {
  border-left-color: var(--verify);
}

.page-news .watch-card:hover {
  background: var(--news-hover);
  border-color: var(--cyan);
}

.page-news .watch-card__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-news .watch-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-news .watch-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-news .watch-card__link {
  margin: auto 0 0;
  padding-top: 6px;
  font-size: 13.5px;
}

.page-news .watch-note {
  margin-top: clamp(18px, 2.6vw, 28px);
  padding: clamp(16px, 2.2vw, 26px);
  border: 1px solid var(--line);
  border-left: 5px solid var(--warn);
  background: var(--ink-2);
}

.page-news .watch-note__k {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--warn);
}

.page-news .watch-note__text {
  margin: 0;
  max-width: 56em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 620px) {
  .page-news .fold__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }
}

@media (min-width: 700px) {
  .page-news .lane-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 820px) {
  .page-news .news-sec__head {
    grid-template-columns: 92px minmax(0, 1fr);
    column-gap: 26px;
    align-items: start;
  }

  .page-news .news-sec__no {
    grid-column: 1;
    grid-row: 1 / 3;
    padding-top: 5px;
  }

  .page-news .news-sec__title,
  .page-news .news-sec__desc {
    grid-column: 2;
  }

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

@media (min-width: 880px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-hero__index {
    border-top: 0;
    border-left: 3px solid var(--cyan);
    padding: 2px 0 2px 18px;
  }

  .page-news .news-top__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-news .lane-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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