.page-news {
  --news-rail: 272px;
  --news-gap: clamp(20px, 3vw, 36px);
  --news-line: rgba(11, 14, 23, .14);
  --news-hair: rgba(242, 243, 247, .24);
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumb {
  padding-top: clamp(14px, 2.6vw, 26px);
}

/* ---------- 页面头部 ---------- */
.page-news .news-masthead {
  border-bottom: var(--line);
  background: linear-gradient(180deg, var(--mist) 0%, var(--mist) 68%, var(--paper) 68%, var(--paper) 100%);
  padding-block: clamp(22px, 3.5vw, 40px) clamp(30px, 5vw, 58px);
}

.page-news .news-masthead__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-news .news-masthead h1 {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.4vw, 56px);
  font-weight: 200;
  line-height: 1.14;
  letter-spacing: -.02em;
  max-width: 17ch;
}

.page-news .news-masthead .lede {
  max-width: 48ch;
  margin: 0;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-news .news-figures {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-top: 16px;
  border-top: var(--line);
}

.page-news .news-figures__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-news .news-figures dt {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-news .news-figures dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 500;
  color: var(--ink);
}

.page-news .news-figures__num--red {
  color: var(--red);
}

.page-news .news-masthead__media {
  border: var(--line);
  background: var(--paper);
  box-shadow: var(--hard);
}

.page-news .media {
  margin: 0;
}

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

.page-news .media__caption {
  display: block;
  padding: 10px 14px 12px;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--slate);
  border-top: var(--line);
  background: var(--paper);
}

/* ---------- 置顶轮次 ---------- */
.page-news .pinned-wrap {
  padding-block: clamp(28px, 4.4vw, 54px);
}

.page-news .pinned-round {
  position: relative;
  padding: clamp(22px, 4vw, 44px);
  background: var(--ink);
  color: var(--on-ink-1);
  border: var(--line);
  box-shadow: var(--hard);
  overflow: hidden;
}

.page-news .pinned-round::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: var(--red);
}

.page-news .pinned-round__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.page-news .round-badge {
  display: inline-flex;
  align-items: baseline;
  padding: 5px 12px;
  background: var(--red);
  color: var(--paper);
  border: 2px solid var(--red);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .14em;
  white-space: nowrap;
}

.page-news .news-flag {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 2px;
}

.page-news .pinned-round__title {
  margin: 0 0 16px;
  font-size: clamp(21px, 3.2vw, 33px);
  font-weight: 600;
  line-height: 1.38;
  color: var(--on-ink-1);
  max-width: 30ch;
}

.page-news .pinned-round__text {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--on-ink-2);
}

.page-news .pinned-round__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .pinned-round__link {
  margin: 22px 0 0;
}

/* ---------- 日志两栏 ---------- */
.page-news .log-layout {
  display: grid;
  gap: var(--news-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .rail-block {
  margin-bottom: 26px;
}

.page-news .rail-block:last-child {
  margin-bottom: 0;
}

.page-news .rail-block__title {
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: var(--line);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-news .rail-media {
  border: var(--line);
  background: var(--paper);
  box-shadow: var(--hard-sm);
  margin-bottom: 26px;
}

.page-news .rail-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  font-size: 14px;
}

.page-news .rail-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 10px;
  color: var(--ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background-color .18s ease-out, border-color .18s ease-out;
}

.page-news .rail-index a:hover,
.page-news .rail-index a:focus-visible {
  background: var(--paper);
  border-left-color: var(--red);
}

.page-news .chips .chip[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* ---------- 轮次条目 ---------- */
.page-news .round-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .round-item {
  position: relative;
  padding: 0 0 26px 26px;
  margin-left: 6px;
  border-left: 2px solid var(--news-line);
}

.page-news .round-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.page-news .round-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--ink);
  box-sizing: border-box;
}

.page-news .round-summary {
  display: block;
  position: relative;
  padding: 2px 30px 2px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .round-summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 0;
  font-family: var(--mono);
  font-size: 18px;
  color: var(--slate);
  transition: color .18s ease-out;
}

.page-news .round-details[open] > .round-summary::after {
  content: "−";
  color: var(--red);
}

.page-news .round-summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.page-news .round-no {
  display: inline-block;
  margin-right: 10px;
  padding: 1px 7px;
  background: var(--gold-100);
  border: 2px solid var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink);
  vertical-align: 2px;
}

.page-news .round-summary .tag {
  display: inline-block;
  margin-right: 10px;
  font-size: 11.5px;
  vertical-align: 2px;
}

.page-news .round-title {
  display: inline;
  font-size: clamp(16px, 2.1vw, 19px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  transition: color .18s ease-out;
}

.page-news .round-summary:hover .round-title {
  color: var(--red-700);
}

.page-news .change-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
  max-width: 62ch;
}

.page-news .change-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .change-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--red);
}

/* ---------- 专题连载 ---------- */
.page-news .topic-section {
  background: var(--ink);
  color: var(--on-ink-1);
  border-block: var(--line);
}

.page-news .topic-section .eyebrow {
  color: var(--gold);
}

.page-news .topic-section .section-title {
  color: var(--on-ink-1);
}

.page-news .topic-section .lede {
  color: var(--on-ink-2);
  max-width: 58ch;
}

.page-news .topic-track-wrap {
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .topic-track {
  list-style: none;
  margin: 0;
  padding: 0 0 18px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(240px, 82%);
  gap: 18px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-news .topic-card {
  display: flex;
  flex-direction: column;
  scroll-snap-align: start;
  background: var(--navy);
  border: 2px solid var(--news-hair);
}

.page-news .topic-card .media {
  border-bottom: 2px solid var(--news-hair);
}

.page-news .topic-card__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  padding: 18px 20px 22px;
}

.page-news .topic-episode {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-news .topic-card h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--on-ink-1);
}

.page-news .topic-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--on-ink-2);
}

.page-news .topic-card .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 适配快照 ---------- */
.page-news .adapter-layout {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .adapter-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  border: var(--line);
  background: var(--paper);
  box-shadow: var(--hard-sm);
}

.page-news .adapter-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--news-line);
}

.page-news .adapter-row:last-child {
  border-bottom: 0;
}

.page-news .adapter-row:nth-child(even) {
  background: var(--mist);
}

.page-news .adapter-row__name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-news .adapter-row__note {
  grid-column: 1 / -1;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--slate);
}

.page-news .adapter-row__state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--green);
  white-space: nowrap;
}

.page-news .adapter-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(31, 122, 90, .18);
}

.page-news .adapter-media {
  border: var(--line);
  background: var(--paper);
  box-shadow: var(--hard);
}

/* ---------- 合作共建 ---------- */
.page-news .partner-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-news .partner-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 26px;
  background: var(--paper);
  border: var(--line);
  box-shadow: var(--hard-sm);
}

.page-news .partner-card__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--red);
}

.page-news .partner-card__title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--ink);
}

.page-news .partner-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 订阅收尾 ---------- */
.page-news .subscribe {
  background: var(--ink);
  color: var(--on-ink-1);
  border-top: var(--line);
}

.page-news .subscribe__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

.page-news .subscribe .eyebrow {
  color: var(--gold);
}

.page-news .subscribe .section-title {
  color: var(--on-ink-1);
}

.page-news .subscribe__copy p {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--on-ink-2);
}

.page-news .subscribe__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .subscribe__list li {
  padding: 5px 12px;
  border: 2px solid var(--news-hair);
  color: var(--on-ink-1);
  font-size: 13px;
  letter-spacing: .04em;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .topic-track {
    grid-auto-columns: minmax(280px, 46%);
  }

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

  .page-news .adapter-row {
    padding: 15px 20px;
  }
}

@media (min-width: 920px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-news .log-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .log-rail {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1020px) {
  .page-news .adapter-layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .page-news .topic-track {
    grid-auto-columns: minmax(280px, 31%);
  }
}

@media (min-width: 900px) {
  .page-news .subscribe__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .rail-index a,
  .page-news .round-summary::after,
  .page-news .round-title {
    transition: none;
  }

  .page-news .topic-track {
    scroll-snap-type: none;
  }
}