/* ===== 专题跟进 · page-news ===== */
.page-news {
  --news-rail-w: 236px;
  --news-cut: clamp(16px, 4vw, 52px);
  --news-gap: clamp(20px, 3.4vw, 44px);
  display: block;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-news .topics-group,
.page-news .topics-officials,
.page-news .topics-briefing,
.page-news .topics-follow {
  scroll-margin-top: calc(var(--masthead-h) + 20px);
}

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

.page-news .media-frame__caption {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 首屏框景 ---------- */
.page-news .topics-masthead {
  position: relative;
  overflow: hidden;
  padding: calc(var(--masthead-h) + 28px) 0 clamp(34px, 6vw, 76px);
  background: var(--space);
  color: var(--paper);
}

.page-news .topics-masthead::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(127, 211, 242, 0.14) 0 1px, transparent 1px 100%) 0 0 / 88px 100%,
    radial-gradient(120% 80% at 88% 0%, rgba(46, 242, 176, 0.16), transparent 62%);
  opacity: 0.9;
}

.page-news .topics-masthead::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--ice) 0 46%, var(--mint) 46% 78%, var(--orange) 78% 100%);
}

.page-news .topics-masthead > .u-shell {
  position: relative;
  z-index: 1;
}

.page-news .topics-masthead .breadcrumb__link {
  color: var(--ice);
}

.page-news .topics-masthead .breadcrumb__link[aria-current="page"] {
  color: var(--silver);
}

.page-news .topics-masthead__grid {
  display: grid;
  gap: var(--news-gap);
  margin-top: clamp(20px, 3vw, 40px);
}

.page-news .topics-masthead h1 {
  margin: 12px 0 0;
  max-width: 15em;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 78px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-news .topics-masthead__lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--silver);
}

.page-news .topics-masthead__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .topics-masthead__tally {
  border: var(--bw) solid rgba(127, 211, 242, 0.55);
  background: rgba(11, 27, 58, 0.66);
  padding: clamp(16px, 2.4vw, 24px);
}

.page-news .topics-masthead__tally-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ice);
}

.page-news .topics-tally {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .topics-tally .data-figure {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 6px;
}

.page-news .topics-tally .data-figure__value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}

.page-news .topics-tally .data-figure--ice .data-figure__value { color: var(--ice); }
.page-news .topics-tally .data-figure--mint .data-figure__value { color: var(--mint); }
.page-news .topics-tally .data-figure--orange .data-figure__value { color: var(--orange); }

.page-news .topics-tally .data-figure__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel);
}

.page-news .topics-tally .data-figure__label {
  flex: 0 0 100%;
  font-size: 13px;
  line-height: 1.4;
  color: var(--silver);
}

/* ---------- 筛选索引 ---------- */
.page-news .topics-filter {
  padding: clamp(26px, 4.6vw, 52px) 0;
  background: var(--paper);
  border-bottom: 4px solid var(--ink);
}

.page-news .topics-filter__title {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.2;
  color: var(--ink);
}

.page-news .topics-filter__rows {
  display: grid;
  gap: 0;
}

.page-news .topics-filter__row {
  display: grid;
  gap: 10px;
  padding: 14px 0;
  border-top: 1px solid var(--silver);
}

.page-news .topics-filter__row:first-child {
  border-top: 3px solid var(--ink);
}

.page-news .topics-filter__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

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

.page-news .topics-filter__tags .tag {
  text-decoration: none;
  border: var(--bw) solid var(--ink);
  background: var(--white);
  color: var(--ink);
  transition: background .16s var(--ease), color .16s var(--ease), transform .16s var(--ease);
}

.page-news .topics-filter__tags .tag--ice { background: var(--ice); }
.page-news .topics-filter__tags .tag--mint { background: var(--mint); }
.page-news .topics-filter__tags .tag--alert { background: var(--orange); }

.page-news .topics-filter__tags .tag:hover,
.page-news .topics-filter__tags .tag:focus-visible {
  background: var(--space);
  color: var(--paper);
  transform: translateY(-2px);
}

/* ---------- 头条 ---------- */
.page-news .topics-headline {
  padding: clamp(32px, 5.6vw, 84px) 0;
  background: var(--paper);
}

.page-news .topics-headline__grid {
  display: grid;
  gap: var(--news-gap);
}

.page-news .topics-headline__frame {
  position: relative;
  border: var(--bw) solid var(--ink);
  background: var(--space);
  box-shadow: var(--shadow-hard);
}

.page-news .topics-headline__frame::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -6px;
  left: 0;
  height: 10px;
  background: linear-gradient(90deg, var(--ice) 0 42%, var(--mint) 42% 74%, var(--orange) 74% 100%);
  transform: skewY(-1.4deg);
  transform-origin: left center;
}

.page-news .topics-headline__media {
  border: 0;
}

.page-news .topics-headline__copy {
  border-left: 4px solid var(--ice);
  padding-left: clamp(14px, 2vw, 24px);
}

.page-news .topics-headline__copy h2 {
  margin: 12px 0 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .topics-headline__lede {
  margin: 16px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--ink);
}

.page-news .topics-headline__points {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .topics-headline__points li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--penguin);
}

.page-news .topics-headline__points li::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 0;
  width: 12px;
  height: 3px;
  background: var(--mint);
}

/* ---------- 折叠要点 ---------- */
.page-news .topics-details {
  margin-top: 20px;
  border-top: 2px dashed var(--silver);
  padding-top: 12px;
}

.page-news .topics-details > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--penguin);
  padding: 4px 2px;
  border-radius: 2px;
}

.page-news .topics-details > summary::-webkit-details-marker { display: none; }

.page-news .topics-details > summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: var(--bw) solid var(--penguin);
  font-size: 14px;
  line-height: 1;
  color: var(--penguin);
}

.page-news .topics-details[open] > summary::before {
  content: "−";
  background: var(--mint);
  border-color: var(--ink);
  color: var(--ink);
}

.page-news .topics-details > summary:hover { color: var(--ink); }
.page-news .topics-details > summary:hover::before { background: var(--ice); }

.page-news .topics-details__body {
  margin-top: 12px;
  padding: 14px 16px;
  background: var(--silver);
  border-left: 4px solid var(--penguin);
}

.page-news .topics-details__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-news .topics-details__body ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
}

.page-news .topics-details__body li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

/* ---------- 最新更新流 ---------- */
.page-news .topics-latest {
  padding: clamp(22px, 4vw, 44px) 0 clamp(40px, 6vw, 88px);
  background: var(--paper);
}

.page-news .topics-stream {
  display: grid;
  gap: clamp(22px, 3.6vw, 44px);
  margin-top: clamp(22px, 3.4vw, 40px);
}

.page-news .topics-stream__index {
  border-left: 3px solid var(--ice);
  padding: 4px 0 4px 16px;
}

.page-news .topics-stream__index-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-news .topics-index {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 4px;
}

.page-news .topics-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 4px;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--silver);
  font-size: 15px;
  transition: color .16s var(--ease), transform .16s var(--ease);
}

.page-news .topics-index__link:hover,
.page-news .topics-index__link:focus-visible {
  color: var(--penguin);
  transform: translateX(4px);
}

.page-news .topics-index__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--ice);
  -webkit-text-stroke: 0.4px var(--penguin);
}

.page-news .topics-stream__figure {
  margin-top: 20px;
  border: var(--bw) solid var(--ink);
  background: var(--space);
}

.page-news .topics-stream__figure .media-frame__caption {
  color: var(--silver);
}

.page-news .topics-stream__main {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-news .topics-group__title {
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--ink);
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 26px);
  letter-spacing: 0.02em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-news .topics-group__title::before {
  content: "";
  width: 14px;
  height: 14px;
  background: var(--orange);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-news .topics-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: topic;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-news .topics-card {
  counter-increment: topic;
  position: relative;
  border: var(--bw) solid var(--ink);
  background: var(--white);
  box-shadow: var(--shadow-hard);
  padding: clamp(18px, 2.6vw, 28px);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}

.page-news .topics-card::before {
  content: counter(topic, decimal-leading-zero);
  position: absolute;
  top: 10px;
  right: 14px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.4vw, 52px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.2px var(--silver);
  pointer-events: none;
}

.page-news .topics-card:hover,
.page-news .topics-card:focus-within {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0 var(--ink);
}

.page-news .topics-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .topics-card__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--steel);
}

.page-news .topics-card__title {
  margin: 0;
  max-width: 26em;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.4;
  color: var(--ink);
}

.page-news .topics-card__summary {
  margin: 10px 0 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--penguin);
}

/* ---------- 裁判与赛程节点 ---------- */
.page-news .topics-officials {
  padding: clamp(36px, 5.6vw, 84px) 0;
  background: var(--space);
  color: var(--paper);
  position: relative;
}

.page-news .topics-officials::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(214, 222, 232, 0.08) 0 2px, transparent 2px 96px);
}

.page-news .topics-officials__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--news-gap);
}

.page-news .topics-officials__media .media-frame {
  border: var(--bw) solid var(--ice);
}

.page-news .topics-officials__media .media-frame__caption {
  color: var(--ice);
}

.page-news .topics-officials__copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.12;
  color: var(--white);
}

.page-news .topics-officials__copy > p {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

.page-news .topics-timeline {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-news .topics-timeline__item {
  position: relative;
  padding-left: 26px;
  border-left: 2px solid rgba(127, 211, 242, 0.35);
  padding-bottom: 4px;
}

.page-news .topics-timeline__dot {
  position: absolute;
  top: 4px;
  left: -7px;
  width: 12px;
  height: 12px;
  background: var(--orange);
  border: 2px solid var(--space);
}

.page-news .topics-timeline__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.45;
  color: var(--mint);
}

.page-news .topics-timeline__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 晨报时段 ---------- */
.page-news .topics-briefing {
  padding: clamp(34px, 5.4vw, 80px) 0;
  background: var(--paper);
}

.page-news .topics-briefing__panel {
  display: grid;
  gap: var(--news-gap);
  border: var(--bw) solid var(--ink);
  background: var(--white);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3vw, 40px);
  position: relative;
  overflow: hidden;
}

.page-news .topics-briefing__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: var(--mint);
}

.page-news .topics-briefing__copy h2 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.14;
  color: var(--ink);
}

.page-news .topics-briefing__copy > p {
  margin: 16px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .topics-briefing__list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .topics-briefing__list li {
  border-left: 3px solid var(--ice);
  padding: 4px 0 4px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--penguin);
}

.page-news .topics-briefing__list strong {
  color: var(--ink);
  font-weight: 700;
}

.page-news .topics-briefing__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

.page-news .topics-briefing__media .media-frame {
  border: var(--bw) solid var(--ink);
  background: var(--space);
}

.page-news .topics-briefing__media .media-frame__caption {
  color: var(--silver);
}

.page-news .topics-briefing__cta {
  margin-top: 16px;
  width: 100%;
  text-align: center;
}

/* ---------- 跟进入口 ---------- */
.page-news .topics-follow {
  padding: 0 0 clamp(44px, 6vw, 96px);
  background: var(--paper);
}

.page-news .topics-follow__panel {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  border: var(--bw) solid var(--ink);
  background: var(--penguin);
  color: var(--paper);
  box-shadow: var(--shadow-hard);
  padding: clamp(24px, 3.6vw, 48px);
}

.page-news .topics-follow__copy h2 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 38px);
  line-height: 1.16;
  color: var(--white);
}

.page-news .topics-follow__copy p {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ice);
}

.page-news .topics-follow__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

/* ---------- 键盘焦点 ---------- */
.page-news a:focus-visible,
.page-news summary:focus-visible,
.page-news details:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .topics-filter__row {
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

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

@media (min-width: 900px) {
  .page-news .topics-masthead__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.85fr);
    align-items: end;
    gap: clamp(28px, 4vw, 60px);
  }

  .page-news .topics-headline__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 60px);
  }

  .page-news .topics-officials__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .topics-briefing__panel {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-news .topics-follow__panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-news .topics-follow__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .page-news .topics-stream {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .topics-stream__index {
    position: sticky;
    top: calc(var(--masthead-h) + 24px);
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .topics-card,
  .page-news .topics-index__link,
  .page-news .topics-filter__tags .tag {
    transition: none;
  }

  .page-news .topics-card:hover,
  .page-news .topics-card:focus-within {
    transform: none;
  }
}