.page-news {
  --pn-narrow: 62ch;
  --pn-line: rgba(23, 19, 15, 0.18);
  --pn-line-soft: rgba(23, 19, 15, 0.1);
  overflow-x: clip;
}

/* ---------- 基础容器与区带 ---------- */
.page-news .pn-wrap {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 56px);
}

.page-news .pn-band {
  padding-block: clamp(40px, 6vw, 84px);
  border-top: 1px solid var(--pn-line-soft);
}

.page-news .pn-band--tint {
  background: var(--paper-2);
  border-top-color: var(--pn-line);
}

.page-news .pn-band--dark {
  background: var(--midnight);
  color: var(--mist);
  border-top-color: rgba(251, 249, 244, 0.16);
}

.page-news .page-head {
  border-top: 0;
  padding-block: clamp(28px, 5vw, 64px) clamp(36px, 5vw, 72px);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: 0;
  list-style: none;
  font-size: 13px;
}

.page-news .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--slate);
}

.page-news .breadcrumb a {
  color: var(--cyan-deep);
  text-decoration: none;
}

.page-news .breadcrumb a:hover,
.page-news .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-news .breadcrumb li[aria-current="page"] {
  color: var(--slate);
}

/* ---------- 首屏 ---------- */
.page-news .head-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-news h1 {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(30px, 5.2vw, 52px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .head-lede {
  margin: 0;
  max-width: var(--pn-narrow);
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.78;
  color: var(--ink);
}

.page-news .head-facts {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pn-line);
}

.page-news .head-fact {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--pn-line-soft);
}

.page-news .head-fact__k {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-news .head-fact__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--ink);
}

/* ---------- 区块标题 ---------- */
.page-news .sec-head {
  max-width: 74ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-news .sec-head h2,
.page-news .subscribe h2 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--ink);
}

.page-news .pn-band--dark h2 {
  color: var(--mist);
}

.page-news .sec-lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate);
}

.page-news .pn-band--dark .sec-lede {
  color: rgba(251, 249, 244, 0.72);
}

.page-news .section-number {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--rust);
}

.page-news .pn-band--dark .section-number {
  color: var(--gold);
}

/* ---------- 报告索引布局 ---------- */
.page-news .reports-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.page-news .col-rail {
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-news .col-rail__item {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--pn-line);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-news .col-rail__item:hover,
.page-news .col-rail__item:focus-visible {
  background: var(--midnight);
  border-color: var(--midnight);
  color: var(--cyan);
}

/* ---------- 条目列表 ---------- */
.page-news .entry-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pn-line);
}

.page-news .entry {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 12px;
  padding: 18px 6px 16px;
  border-bottom: 1px solid var(--pn-line);
  outline-offset: 2px;
  transition: background-color 0.18s ease;
}

.page-news .entry:hover,
.page-news .entry:focus-visible {
  background: rgba(23, 19, 15, 0.035);
}

.page-news .entry:focus-visible {
  outline: 2px solid var(--cyan-deep);
}

.page-news .entry__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--rust);
}

.page-news .entry__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 7px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-news .entry__kicker .tag {
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-news .entry__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.38;
  color: var(--ink);
}

.page-news .entry__summary {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--slate);
  transition: max-height 0.26s ease, opacity 0.26s ease, margin-top 0.26s ease;
}

@media (hover: hover) {
  .page-news .entry:hover .entry__summary,
  .page-news .entry:focus-within .entry__summary,
  .page-news .entry:focus-visible .entry__summary {
    max-height: 9rem;
    margin-top: 8px;
    opacity: 1;
  }
}

@media (hover: none) {
  .page-news .entry__summary {
    max-height: none;
    margin-top: 8px;
    opacity: 1;
  }
}

/* ---------- 图框 ---------- */
.page-news .pn-fig {
  margin: 0;
  border: 1px solid var(--pn-line);
  background: var(--midnight);
}

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

.page-news .pn-fig figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--pn-line);
  background: var(--paper);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-news .pn-fig--dark figcaption {
  border-top-color: rgba(251, 249, 244, 0.16);
  background: var(--midnight);
  color: rgba(251, 249, 244, 0.62);
}

.page-news .index-side {
  margin-top: 8px;
}

/* ---------- 栏目说明 ---------- */
.page-news .column-rows {
  border-top: 1px solid var(--pn-line);
}

.page-news .column-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px 40px;
  padding: 24px 0;
  border-bottom: 1px solid var(--pn-line);
  scroll-margin-top: 24px;
}

.page-news .column-row__name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-news .column-row__freq {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-deep);
}

.page-news .column-row__desc {
  margin: 0;
  max-width: var(--pn-narrow);
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 本月专题 ---------- */
.page-news .feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-news .signal {
  border-top: 1px solid rgba(251, 249, 244, 0.16);
}

.page-news .signal:last-of-type {
  border-bottom: 1px solid rgba(251, 249, 244, 0.16);
}

.page-news .signal__sum {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .signal__sum:hover .signal__name,
.page-news .signal__sum:focus-visible .signal__name {
  color: var(--cyan);
}

.page-news .signal__sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .signal__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-news .signal__name {
  font-family: var(--font-serif);
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--mist);
  transition: color 0.16s ease;
}

.page-news .signal[open] .signal__name {
  color: var(--cyan);
}

.page-news .signal__body {
  padding: 0 2px 18px 34px;
}

.page-news .signal__body p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(251, 249, 244, 0.72);
}

.page-news .feature-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 0;
}

.page-news .feature-links .btn {
  text-decoration: none;
}

/* ---------- 版本手记 ---------- */
.page-news .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

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

.page-news .version-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 20px 0;
  border-bottom: 1px solid var(--pn-line);
}

.page-news .version-item__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-news .version-item__name {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .version-item p {
  margin: 4px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 赛程 ---------- */
.page-news .pn-fig--wide {
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-news .scale {
  display: block;
  width: 100%;
  max-width: 900px;
  height: auto;
  color: var(--cyan-deep);
  margin-top: 8px;
}

.page-news .scale__axis {
  stroke: currentColor;
  stroke-width: 1;
  opacity: 0.4;
}

.page-news .scale__ticks line {
  stroke: currentColor;
  stroke-width: 2;
}

.page-news .scale__ticks line:nth-child(4),
.page-news .scale__ticks line:nth-child(7) {
  stroke: var(--magenta);
}

.page-news .scale__caption {
  margin: 8px 0 0;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-news .schedule-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--pn-line);
}

.page-news .schedule-note {
  padding: 20px 0;
  border-bottom: 1px solid var(--pn-line);
}

.page-news .schedule-note h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .schedule-note p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 订阅 ---------- */
.page-news .subscribe-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-news .subscribe-lede {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(251, 249, 244, 0.76);
}

.page-news .copy-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid rgba(251, 249, 244, 0.2);
  background: rgba(18, 227, 209, 0.05);
}

.page-news .copy-line__val {
  font-family: var(--font-mono);
  font-size: clamp(13px, 2vw, 16px);
  color: var(--cyan);
  word-break: break-all;
}

.page-news .copy-btn {
  text-decoration: none;
}

.page-news .copy-status {
  font-size: 13px;
  color: var(--mist);
}

.page-news .subscribe-note {
  margin: 12px 0 0;
  font-size: 13px;
}

.page-news .pn-band--dark .muted {
  color: rgba(251, 249, 244, 0.56);
}

.page-news .subscribe-side h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--mist);
}

.page-news .subscribe-side p {
  margin: 0 0 14px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(251, 249, 244, 0.72);
}

.page-news .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-news .subscribe-actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .schedule-notes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 clamp(20px, 3vw, 40px);
  }

  .page-news .schedule-note {
    border-top: 1px solid var(--pn-line);
    border-bottom: 0;
    padding: 20px 0;
  }

  .page-news .schedule-note:last-child {
    border-bottom: 1px solid var(--pn-line);
  }
}

@media (min-width: 760px) {
  .page-news .head-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-news .reports-layout {
    grid-template-columns: 56px minmax(0, 1fr);
  }

  .page-news .col-rail {
    flex-direction: column;
    justify-content: space-between;
    gap: 8px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .col-rail__item {
    padding: 14px 8px;
    letter-spacing: 0.18em;
    white-space: normal;
    writing-mode: vertical-rl;
    text-orientation: mixed;
  }

  .page-news .index-side {
    grid-column: 1 / -1;
  }

  .page-news .column-row {
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
    gap: 0 40px;
  }

  .page-news .feature-grid,
  .page-news .version-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .subscribe-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

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

@media (min-width: 1100px) {
  .page-news .reports-layout {
    grid-template-columns: 56px minmax(0, 1fr) minmax(0, 300px);
  }

  .page-news .index-side {
    grid-column: auto;
    margin-top: 0;
    position: sticky;
    top: 32px;
  }

  .page-news .version-item {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 0 20px;
  }

  .page-news .version-item__ver {
    grid-row: span 2;
    padding-top: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry__summary,
  .page-news .entry,
  .page-news .col-rail__item,
  .page-news .signal__name {
    transition: none;
  }
}