.page-news {
  --news-rule: 1px solid var(--grid);
  --news-node: 6px;
  padding-bottom: clamp(40px, 7vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-news .crumbs {
  padding-top: clamp(18px, 3vw, 34px);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}
.page-news .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .crumbs a:hover,
.page-news .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan-32);
}
.page-news .crumbs__sep {
  margin: 0 10px;
  color: var(--scale);
}

/* ---------- 页头 ---------- */
.page-news .news-head {
  padding-top: clamp(28px, 5vw, 68px);
}

.page-news .news-head__title {
  margin: 18px 0 0;
  color: var(--text);
}

.page-news .news-head__lede {
  margin-top: clamp(20px, 3vw, 34px);
  max-width: 60ch;
  color: var(--text-64);
  font-weight: 300;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.75;
}

.page-news .news-head__ruler {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin-top: clamp(26px, 4vw, 52px);
  height: 18px;
  border-bottom: var(--news-rule);
}
.page-news .ruler-tick {
  display: block;
  width: 1px;
  height: 7px;
  background: var(--grid);
}
.page-news .ruler-tick:nth-child(2n) {
  height: 12px;
}
.page-news .ruler-tick--hot {
  background: var(--cyan);
  height: 18px;
}

/* ---------- 横幅图 ---------- */
.page-news .banner {
  margin: clamp(26px, 4vw, 54px) auto 0;
  border-top: var(--news-rule);
  border-bottom: var(--news-rule);
  
}
.page-news .banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: .82;
  filter: saturate(.8) contrast(1.06);
}
.page-news .banner--wide img {
  aspect-ratio: 8 / 3;
}
.page-news .banner__note {
  padding: 10px 2px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--muted);
}

/* ---------- 章节小标题 ---------- */
.page-news .sec-head {
  display: grid;
  gap: 14px;
  padding-top: 22px;
  border-top: var(--news-rule);
}
.page-news .sec-head__note {
  max-width: 60ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  font-weight: 300;
}

/* ---------- 过滤工具栏 ---------- */
.page-news .log-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: clamp(24px, 3vw, 40px);
  padding: 14px 0;
  border-top: var(--news-rule);
  border-bottom: var(--news-rule);
}
.page-news .log-toolbar__status {
  margin-left: auto;
  font-size: 12px;
  color: var(--cyan-64);
  letter-spacing: .08em;
}

.page-news .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .chip {
  appearance: none;
  background: transparent;
  border: 1px solid var(--grid);
  color: var(--muted);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: .08em;
  padding: 6px 12px;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-news .chip:hover,
.page-news .chip:focus-visible {
  color: var(--text);
  border-color: var(--cyan-32);
  background: var(--cyan-08);
}
.page-news .chip[aria-pressed="true"] {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--cyan-08);
}

/* ---------- 日志条目列表 ---------- */
.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .log {
  border-bottom: var(--news-rule);
}
.page-news .log[hidden] {
  display: none;
}

.page-news .log__det > summary {
  list-style: none;
  cursor: pointer;
}
.page-news .log__det > summary::-webkit-details-marker {
  display: none;
}
.page-news .log__det > summary::marker {
  content: "";
}

.page-news .log__row {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 8px;
  padding: 18px 14px 18px 2px;
  transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-news .log__row:hover,
.page-news .log__row:focus-visible {
  background: var(--cyan-08);
  box-shadow: inset 0 0 0 1px var(--cyan-32);
}
.page-news .log__row:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-news .log__no {
  grid-column: 1;
  grid-row: 1;
  align-self: center;
  padding-right: 12px;
  border-right: 1px solid var(--grid);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan-32);
  text-align: right;
  transition: color var(--dur) var(--ease);
}
.page-news .log__row:hover .log__no {
  color: var(--cyan);
}

.page-news .log__title {
  grid-column: 2;
  grid-row: 1;
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  font-weight: 400;
  letter-spacing: .01em;
  transition: color var(--dur) var(--ease);
}
.page-news .log--lead .log__title {
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.page-news .log__meta {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}

.page-news .log__tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--cyan-32);
  color: var(--cyan-64);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
}

.page-news .log__time {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-news .log__det[open] .log__title {
  color: var(--cyan);
}
.page-news .log__det[open] .log__tag {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .log__note {
  padding: 2px 18px 24px 80px;
  max-width: 82ch;
}
.page-news .log__note p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
  font-weight: 300;
}

/* ---------- 专题系列 ---------- */
.page-news .series {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--grid);
  border: var(--news-rule);
}

.page-news .series-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 22px 26px;
  background: var(--panel);
  border-left: 2px solid transparent;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .series-card:hover {
  background: var(--zone);
}
.page-news .series-card:nth-child(1) { border-left-color: var(--cyan); }
.page-news .series-card:nth-child(2) { border-left-color: var(--cyan-deep); }
.page-news .series-card:nth-child(3) { border-left-color: var(--amber); }
.page-news .series-card:nth-child(4) { border-left-color: var(--magenta); }

.page-news .series-card__no {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}
.page-news .series-card__title {
  margin: 0;
  font-size: 19px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.01em;
}
.page-news .series-card__desc {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.7;
  font-weight: 300;
  color: var(--muted);
}
.page-news .series-card__meta {
  display: flex;
  gap: 24px;
  margin: 6px 0 0;
  padding-top: 14px;
  border-top: var(--news-rule);
}
.page-news .series-card__meta dt {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--scale);
}
.page-news .series-card__meta dd {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--text);
}

/* ---------- 周度归档 ---------- */
.page-news .archive {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(24px, 3vw, 40px);
}
.page-news .archive__body > .prose {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  font-weight: 300;
}

.page-news .phase-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: var(--news-rule);
}
.page-news .phase-item {
  position: relative;
  padding: 20px 0 20px 20px;
  border-bottom: var(--news-rule);
  scroll-margin-top: 88px;
}
.page-news .phase-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  width: var(--news-node);
  height: var(--news-node);
  background: var(--scale);
  transition: background-color var(--dur) var(--ease);
}
.page-news .phase-item:target::before,
.page-news .phase-item:hover::before {
  background: var(--cyan);
}
.page-news .phase-item__title {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: .01em;
}
.page-news .phase-item__desc {
  margin: 8px 0 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  font-weight: 300;
  color: var(--muted);
}
.page-news .phase-item__count {
  display: inline-block;
  margin-top: 12px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan-64);
}

.page-news .archive__link {
  margin-top: 22px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.page-news .archive__link a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-16);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .archive__link a:hover,
.page-news .archive__link a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .archive__media {
  margin: 0;
  border-top: var(--news-rule);
}
.page-news .archive__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: .8;
  filter: saturate(.75) contrast(1.05);
}
.page-news .archive__media .banner__note {
  border-top: var(--news-rule);
}

/* ---------- 更新节奏 ---------- */
.page-news .rhythm {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding-top: clamp(24px, 3vw, 40px);
  border-top: var(--news-rule);
}
.page-news .rhythm__mark {
  display: flex;
  align-items: center;
  gap: 14px;
}
.page-news .rhythm__dot {
  display: block;
  width: var(--news-node);
  height: var(--news-node);
  flex: 0 0 auto;
  background: var(--cyan);
  animation: news-beat var(--beat) var(--ease) infinite;
}
.page-news .rhythm__line {
  display: block;
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan-32), transparent);
}
.page-news .rhythm__body > .prose {
  margin-top: 16px;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  font-weight: 300;
}

.page-news .rhythm__spec {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--grid);
  border: var(--news-rule);
}
.page-news .rhythm__spec > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 14px 16px;
  background: var(--panel);
}
.page-news .rhythm__spec dt {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--scale);
}
.page-news .rhythm__spec dd {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

@keyframes news-beat {
  0%, 100% { opacity: 1; }
  50% { opacity: .28; }
}

/* ---------- 回看与订阅 ---------- */
.page-news .subscribe {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
  padding-top: clamp(24px, 3vw, 40px);
  border-top: var(--news-rule);
}
.page-news .subscribe__media {
  margin: 0;
  border: var(--news-rule);
}
.page-news .subscribe__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: .78;
  filter: saturate(.8) contrast(1.06);
}
.page-news .subscribe__body > .prose {
  margin-top: 16px;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  font-weight: 300;
}
.page-news .subscribe__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding: 14px 0;
  border-top: var(--news-rule);
  border-bottom: var(--news-rule);
}
.page-news .subscribe__mail .mono {
  font-size: 14px;
  color: var(--cyan);
  word-break: break-all;
}
.page-news .subscribe__note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.page-news .subscribe__note a {
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-16);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .subscribe__note a:hover,
.page-news .subscribe__note a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 页尾收束 ---------- */
.page-news .section--tail {
  padding-bottom: 0;
}
.page-news .tail {
  padding-top: clamp(20px, 3vw, 32px);
  border-top: var(--news-rule);
}
.page-news .tail__lead {
  margin: 0 0 14px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--scale);
}
.page-news .tail__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.page-news .tail__links a {
  display: block;
  padding: 10px 0;
  color: var(--text-64);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .tail__links a:hover,
.page-news .tail__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan-32);
}

/* ---------- 焦点态 ---------- */
.page-news a:focus-visible,
.page-news button:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .rhythm__spec {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-news .tail__links {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 32px;
  }
}

@media (min-width: 900px) {
  .page-news .news-head__lede {
    margin-left: 41.66%;
    max-width: 44ch;
  }
  .page-news .news-head__ruler {
    width: 41.66%;
  }
  .page-news .sec-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--gap);
    align-items: start;
  }
  .page-news .sec-head .flag {
    grid-column: 1;
  }
  .page-news .sec-head .section-title {
    grid-column: 2;
    grid-row: 1;
    margin: 0;
  }
  .page-news .sec-head__note {
    grid-column: 2;
    grid-row: 2;
  }

  .page-news .log__row {
    grid-template-columns: 74px minmax(0, 1fr) auto;
    grid-template-rows: auto;
    align-items: center;
    column-gap: 22px;
    padding: 20px 20px 20px 4px;
  }
  .page-news .log__no {
    grid-column: 1;
    grid-row: 1;
  }
  .page-news .log__title {
    grid-column: 2;
    grid-row: 1;
  }
  .page-news .log__meta {
    grid-column: 3;
    grid-row: 1;
    justify-content: flex-end;
    flex-wrap: nowrap;
  }
  .page-news .log__note {
    padding-left: 116px;
  }

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

  .page-news .archive {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-news .rhythm {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: clamp(24px, 4vw, 64px);
  }
  .page-news .rhythm__mark {
    align-items: flex-start;
    padding-top: 6px;
  }
  .page-news .rhythm__line {
    margin-top: 3px;
  }

  .page-news .subscribe {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

@media (min-width: 1180px) {
  .page-news .series {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-news .rhythm__spec {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-news .tail__links {
    grid-template-columns: repeat(4, 1fr);
  }
  .page-news .banner--wide img {
    aspect-ratio: 8 / 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .rhythm__dot {
    animation: none;
    opacity: 1;
  }
  .page-news * {
    transition-duration: 1ms !important;
  }
}
</main>