.page-news {
  --tl-pad: 34px;
  --tl-line: 9px;
  --news-gap: clamp(16px, 2.4vw, 28px);
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* 面包屑与上下文 */
.page-news .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: clamp(24px, 5vw, 48px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.page-news .breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.page-news .breadcrumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-news .breadcrumbs a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* 开篇声明与口径速览 */
.page-news .news-intro {
  padding-top: clamp(20px, 3vw, 36px);
}
.page-news .news-intro .eyebrow {
  color: var(--cyan);
}
.page-news .news-title {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(30px, 5.6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-news .news-intro__grid {
  margin-top: clamp(24px, 3.6vw, 48px);
  gap: var(--news-gap);
  align-items: start;
}
.page-news .news-intro__lead .body-text {
  margin: 0 0 14px;
}
.page-news .news-facts {
  border-top: 3px solid var(--cyan);
  background: var(--carbon);
}
.page-news .news-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--hair);
}
.page-news .news-facts__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.page-news .news-facts__val {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--paper);
  text-align: right;
}
.page-news .news-facts__val--cyan {
  color: var(--cyan);
}

/* 章节头 */
.page-news .news-chapter-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--hair);
  margin-bottom: 14px;
}
.page-news .news-chapter-head .chapter-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}
.page-news .news-chapter-head .section-title {
  margin: 0;
}
.page-news .news-chapter-head .band {
  width: 28px;
  height: 4px;
}

/* 图片容器 */
.page-news .media-frame {
  margin: 0;
}
.page-news .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .news-timeline-img {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  padding: 10px 0;
}

/* 筛选 */
.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: clamp(20px, 3vw, 30px) 0 6px;
}
.page-news .news-filter .index-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.page-news .news-filter .chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}
.page-news .news-filter .chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-news .news-filter__count {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* 时间线 */
.page-news .timeline {
  position: relative;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0 0 0 var(--tl-pad);
  list-style: none;
}
.page-news .timeline::before {
  content: "";
  position: absolute;
  left: var(--tl-line);
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--hair) 24%, var(--hair) 80%, rgba(44, 62, 78, 0) 100%);
}
.page-news .issue-item {
  position: relative;
}
.page-news .issue-item + .issue-item {
  margin-top: 16px;
}
.page-news .issue-item::before {
  content: "";
  position: absolute;
  top: 14px;
  left: calc(var(--tl-line) - var(--tl-pad) - 5.5px);
  width: 11px;
  height: 11px;
  background: var(--ink);
  border: 1px solid var(--hair);
  transition: border-color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
  z-index: 1;
}
.page-news .issue-item:hover::before {
  border-color: var(--cyan);
  background: var(--hl);
}
.page-news .issue-item--current::before {
  top: 12px;
  left: calc(var(--tl-line) - var(--tl-pad) - 7.5px);
  width: 15px;
  height: 15px;
  border: 2px solid var(--cyan);
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(79, 227, 208, 0.12);
}

/* 单期条目 */
.page-news .issue {
  background: var(--carbon);
  border: 1px solid var(--hair);
  border-left: 4px solid var(--hair);
  transition: border-color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}
.page-news .issue--notice {
  border-left-color: var(--cyan);
}
.page-news .issue--column {
  border-left-color: var(--gold);
}
.page-news .issue--desktop {
  border-left-color: var(--clay);
}
.page-news .issue--shift {
  border-left-color: var(--moss);
}
.page-news .issue--current {
  background: var(--hl);
}
.page-news .issue:hover {
  border-color: var(--cyan);
  border-left-color: var(--cyan);
}
.page-news .issue__head {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "num count"
    "title title"
    "tags toggle";
  gap: 8px 12px;
  align-items: baseline;
  padding: 16px 16px 14px;
  cursor: pointer;
  list-style: none;
  transition: color var(--dur-1) var(--ease);
}
.page-news .issue__head::-webkit-details-marker {
  display: none;
}
.page-news .issue__head:hover .issue__title {
  color: var(--cyan);
}
.page-news .issue__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-news .issue__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}
.page-news .issue--current .issue__num {
  color: var(--cyan);
}
.page-news .issue__count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.page-news .issue__title {
  grid-area: title;
  font-family: var(--font-text);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
  transition: color var(--dur-1) var(--ease);
}
.page-news .issue__tags {
  grid-area: tags;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.page-news .issue__toggle {
  grid-area: toggle;
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}
.page-news .issue__toggle--open {
  display: none;
}
.page-news .issue[open] .issue__toggle--closed {
  display: none;
}
.page-news .issue[open] .issue__toggle--open {
  display: inline;
  color: var(--cyan);
}
.page-news .tag--clay {
  border: 1px solid var(--clay);
  background: transparent;
  color: var(--clay);
}
.page-news .issue__body {
  padding: 16px 16px 18px;
  border-top: 1px solid var(--hair);
}
.page-news .issue__body .sub-title {
  margin: 0 0 10px;
  color: var(--paper);
}
.page-news .issue__body .body-text {
  margin: 0 0 14px;
}
.page-news .issue__body .index-label {
  display: block;
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clay);
}
.page-news .news-adjust {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: adj;
}
.page-news .news-adjust li {
  counter-increment: adj;
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 10px;
  padding: 11px 0;
  border-top: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
}
.page-news .news-adjust li::before {
  content: "调整 " counter(adj);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 4px;
}
.page-news .issue__figure {
  margin-top: 18px;
  max-width: 420px;
}

/* 公告归档 */
.page-news .news-archive__grid {
  margin-top: clamp(20px, 3vw, 32px);
  gap: var(--news-gap);
  align-items: start;
}
.page-news .news-archive__img {
  border: 1px solid var(--hair);
}
.page-news .archive-blocks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}
.page-news .archive-block {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num count";
  gap: 4px 10px;
  padding: 14px;
  background: var(--carbon);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--hair);
  text-decoration: none;
  color: var(--paper);
  transition: border-color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}
.page-news .archive-block:hover {
  border-color: var(--cyan);
  background: var(--hl);
}
.page-news .archive-block:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-news .archive-block--notice {
  border-top-color: var(--cyan);
}
.page-news .archive-block--column {
  border-top-color: var(--gold);
}
.page-news .archive-block--desktop {
  border-top-color: var(--clay);
}
.page-news .archive-block--shift {
  border-top-color: var(--moss);
}
.page-news .archive-block__num {
  grid-area: num;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
}
.page-news .archive-block__name {
  grid-area: name;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
}
.page-news .archive-block__count {
  grid-area: count;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mist);
}
.page-news .archive-notes {
  margin-top: 18px;
  border-top: 1px solid var(--hair);
}
.page-news .archive-note {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  padding: 12px 0;
  border-bottom: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
  scroll-margin-top: 96px;
}
.page-news .archive-note__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  padding-top: 4px;
}

/* 更新节奏 */
.page-news .news-rhythm__grid {
  margin-top: clamp(20px, 3vw, 32px);
  gap: var(--news-gap);
  align-items: start;
}
.page-news .news-rhythm .sub-title {
  margin: 0 0 10px;
  color: var(--paper);
}
.page-news .news-rhythm .sub-title + .news-rhythm__list {
  margin-bottom: 26px;
}
.page-news .news-rhythm__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: rhy;
}
.page-news .news-rhythm__list li {
  counter-increment: rhy;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--hair);
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
}
.page-news .news-rhythm__list li::before {
  content: counter(rhy, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 4px;
}
.page-news .news-rhythm__links {
  margin: 0;
}
.page-news .news-rhythm__img {
  border: 1px solid var(--hair);
}

/* 行内链接与收束旁注 */
.page-news .news-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 227, 208, 0.45);
  transition: border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease);
}
.page-news .news-link:hover {
  border-bottom-color: var(--cyan);
  border-bottom-width: 2px;
}
.page-news .news-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-news .news-outro-note {
  margin: clamp(40px, 6vw, 80px) auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--mist);
}

@media (min-width: 780px) {
  .page-news {
    --tl-pad: 96px;
    --tl-line: 22px;
  }
  .page-news .issue-item::before {
    top: 22px;
  }
  .page-news .issue-item--current::before {
    top: 20px;
  }
  .page-news .issue__head {
    grid-template-columns: 96px minmax(0, 1fr) auto 84px auto;
    grid-template-areas: "num title tags count toggle";
    gap: 12px 18px;
    padding: 18px 20px;
  }
  .page-news .issue__count {
    text-align: right;
  }
  .page-news .issue__body {
    padding: 18px 20px 22px;
  }
  .page-news .issue--current .issue__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(180px, 280px);
    gap: clamp(20px, 3vw, 36px);
    align-items: start;
  }
  .page-news .issue__figure {
    margin-top: 0;
    max-width: none;
  }
  .page-news .archive-blocks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .archive-block {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "num"
      "name"
      "count";
    gap: 6px;
    padding: 16px 14px;
  }
}

@media (min-width: 1080px) {
  .page-news .news-archive__grid {
    gap: clamp(28px, 4vw, 56px);
  }
  .page-news .news-rhythm__grid {
    gap: clamp(28px, 4vw, 56px);
  }
  .page-news .news-facts__row {
    padding: 13px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .issue,
  .page-news .issue__head,
  .page-news .issue__title,
  .page-news .issue-item::before,
  .page-news .archive-block,
  .page-news .news-link,
  .page-news .breadcrumbs a {
    transition: none;
  }
}
</main>