.page-news {
  --news-line: rgba(33, 26, 20, 0.14);
  --news-line-soft: rgba(33, 26, 20, 0.08);
  --news-rail: 292px;
  background: var(--paper);
  color: var(--ink-90);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

.page-news h1,
.page-news h2,
.page-news h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.14;
  color: var(--ink);
}

.page-news p {
  margin: 0;
}

.page-news a {
  color: inherit;
}

.page-news .news-crumbs {
  padding-top: clamp(16px, 3vw, 28px);
  padding-bottom: clamp(12px, 2vw, 20px);
}

.page-news .news-crumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dust);
}

.page-news .news-crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--ink-25);
}

.page-news .news-crumbs a {
  text-decoration: none;
  border-bottom: 1px solid var(--ink-25);
  padding-bottom: 1px;
  transition: color var(--ease), border-color var(--ease);
}

.page-news .news-crumbs a:hover {
  color: var(--clay);
  border-bottom-color: var(--clay);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  background: linear-gradient(180deg, var(--paper-deep) 0%, var(--paper) 72%);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding-bottom: clamp(28px, 5vw, 56px);
}

.page-news .news-hero::before {
  content: "";
  display: block;
  height: 9px;
  margin-bottom: clamp(20px, 4vw, 36px);
  background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 14px);
  opacity: 0.26;
}

.page-news .news-hero__in {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-news .news-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: 12px;
}

.page-news .news-hero__lead h1 {
  font-size: clamp(30px, 7.2vw, 62px);
  max-width: 15em;
}

.page-news .news-lede {
  margin-top: 18px;
  max-width: 40em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--ink-80);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .news-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.page-news .news-btn:hover {
  transform: translateY(-2px);
}

.page-news .news-btn:focus-visible {
  outline: 3px solid var(--jade);
  outline-offset: 3px;
}

.page-news .news-btn--jade {
  background: var(--jade);
  box-shadow: 3px 3px 0 rgba(33, 26, 20, 0.22);
}

.page-news .news-btn--jade:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--jade);
}

.page-news .news-btn--ghost {
  background: transparent;
}

.page-news .news-btn--ghost:hover {
  background: var(--ink);
  color: var(--paper);
}

.page-news .news-btn--onink {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper-45);
}

.page-news .news-btn--onink:hover {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-paper);
}

.page-news .news-stats__cell {
  padding: 16px 16px 18px;
  border-right: 1px dashed var(--paper-45);
  border-bottom: 1px dashed var(--paper-45);
}

.page-news .news-stats__cell:nth-child(2n) {
  border-right: 0;
}

.page-news .news-stats__cell:nth-child(n + 3) {
  border-bottom: 0;
}

.page-news .news-stats dt {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sand);
}

.page-news .news-stats dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.4vw, 27px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--paper);
}

/* ---------- 主体两栏 ---------- */

.page-news .news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(28px, 4.5vw, 52px);
}

.page-news .news-rail {
  display: grid;
  gap: var(--gap-m);
  align-content: start;
}

.page-news .rail-card {
  background: var(--paper);
  border: 2px solid var(--ink);
  padding: 16px 16px 18px;
  box-shadow: 4px 4px 0 rgba(33, 26, 20, 0.1);
}

.page-news .rail-card__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dust);
  margin-bottom: 10px;
}

.page-news .rail-card__title {
  font-size: 17px;
  margin-bottom: 14px;
}

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

.page-news .rhythm li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--news-line);
}

.page-news .rhythm li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .rhythm__day {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  padding: 3px 4px;
  background: var(--sand);
  color: var(--ink);
}

.page-news .rhythm__txt {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-80);
}

.page-news .filter {
  display: grid;
  gap: 8px;
}

.page-news .filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .filter__chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 12px;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.page-news .filter__chip:hover {
  border-color: var(--jade);
  transform: translateX(2px);
}

.page-news .filter__input:checked + .filter__chip {
  background: var(--ink);
  color: var(--paper);
  box-shadow: inset 4px 0 0 var(--jade);
}

.page-news .filter__input:focus-visible + .filter__chip {
  outline: 3px solid var(--jade);
  outline-offset: 2px;
}

.page-news .filter__count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--dust);
}

.page-news .filter__input:checked + .filter__chip .filter__count {
  color: var(--sand);
}

.page-news .rail-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-news .rail-links a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  border: 1px dashed var(--ink-25);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  transition: border-color var(--ease), border-style var(--ease), background var(--ease), color var(--ease);
}

.page-news .rail-links a::before {
  content: "\2192";
  font-family: var(--font-mono);
  color: var(--jade);
}

.page-news .rail-links a:hover {
  border-style: solid;
  border-color: var(--jade);
  background: rgba(0, 168, 143, 0.08);
}

/* ---------- 区块 ---------- */

.page-news .news-stream {
  min-width: 0;
}

.page-news .news-block {
  margin-bottom: clamp(28px, 4vw, 44px);
}

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

.page-news .news-block--ink {
  background: var(--ink);
  color: var(--paper-66);
  padding: clamp(22px, 3.4vw, 34px) clamp(18px, 3vw, 30px) clamp(26px, 4vw, 38px);
}

.page-news .news-block--tint {
  background: var(--paper-deep);
  border: 2px solid var(--ink);
  padding: clamp(20px, 3.2vw, 32px) clamp(16px, 2.6vw, 28px) clamp(24px, 3.6vw, 34px);
}

.page-news .block-head {
  padding-bottom: 14px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
  border-bottom: 2px solid var(--ink);
}

.page-news .block-head h2 {
  font-size: clamp(21px, 3.2vw, 31px);
  max-width: 22em;
}

.page-news .news-prose {
  margin-top: 12px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-80);
}

.page-news .news-block--ink .block-head {
  border-bottom-color: var(--paper-45);
}

.page-news .news-block--ink .block-head h2 {
  color: var(--paper);
}

.page-news .news-block--ink .news-kicker {
  color: var(--sand);
}

.page-news .news-block--ink .news-prose {
  color: var(--paper-66);
}

.page-news .news-block h3 {
  font-size: 16px;
  letter-spacing: -0.01em;
}

.page-news .news-figure {
  margin: 0 0 clamp(20px, 3vw, 28px);
  border: 2px solid var(--ink);
  background: var(--steel);
  overflow: hidden;
}

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

.page-news .news-figure__cap {
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--paper);
  background: var(--ink);
  border-top: 2px solid var(--ink);
}

/* ---------- 时间轴 ---------- */

.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-news .timeline__stop {
  position: relative;
  padding-top: 30px;
  border-top: 2px solid var(--sand);
}

.page-news .timeline__stop::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 0;
  right: 0;
  height: 7px;
  background: repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 9px);
  opacity: 0.4;
  color: var(--sand);
}

.page-news .timeline__idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 3px 7px;
  background: var(--jade);
  color: var(--ink);
}

.page-news .timeline__num {
  margin: 12px 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ember);
}

.page-news .timeline__stop h3 {
  color: var(--paper);
  margin-bottom: 8px;
}

.page-news .timeline__stop p {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper-66);
}

/* ---------- 专题 ---------- */

.page-news .topics {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap-m);
}

.page-news .topic {
  display: flex;
  flex-direction: column;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 5px 5px 0 rgba(33, 26, 20, 0.12);
  overflow: hidden;
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.page-news .topic:hover {
  border-color: var(--jade);
  transform: translate(-1px, -1px);
  box-shadow: 7px 7px 0 rgba(0, 168, 143, 0.2);
}

.page-news .topic__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 2px solid var(--ink);
  background: var(--steel);
}

.page-news .topic__body {
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
}

.page-news .topic__tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-news .topic__title {
  font-size: clamp(18px, 2.4vw, 22px);
}

.page-news .topic__text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-80);
}

.page-news .topic__meta {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--news-line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--dust);
}

/* ---------- 近期条目 ---------- */

.page-news .block-head--row {
  display: grid;
  gap: 16px;
}

.page-news .news-figure--side {
  margin: 0;
  border-color: var(--ink);
}

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

.page-news .entry {
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(33, 26, 20, 0.1);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.page-news .entry:hover {
  border-color: var(--jade);
  transform: translate(-1px, -1px);
  box-shadow: 6px 6px 0 rgba(0, 168, 143, 0.2);
}

.page-news .entry summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "tag time"
    "title title";
  gap: 8px 12px;
  align-items: center;
  padding: 13px 14px;
  cursor: pointer;
  list-style: none;
  transition: background var(--ease);
}

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

.page-news .entry summary:hover {
  background: var(--paper-deep);
}

.page-news .entry summary:focus-visible {
  outline: 3px solid var(--jade);
  outline-offset: -3px;
}

.page-news .entry details[open] > summary {
  background: var(--paper-deep);
  border-bottom: 2px solid var(--ink);
}

.page-news .entry__tag {
  grid-area: tag;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  background: var(--steel);
  color: var(--paper);
  white-space: nowrap;
}

.page-news .entry--version .entry__tag {
  background: var(--clay);
}

.page-news .entry--column .entry__tag {
  background: var(--jade);
  color: var(--ink);
}

.page-news .entry--topic .entry__tag {
  background: var(--sand);
  color: var(--ink);
}

.page-news .entry--cadence .entry__tag {
  background: var(--ember);
  color: var(--paper);
}

.page-news .entry__title {
  grid-area: title;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .entry__time {
  grid-area: time;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--dust);
  white-space: nowrap;
}

.page-news .entry__body {
  padding: 12px 14px 16px;
}

.page-news .entry__body p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-80);
}

/* 纯 CSS 分类筛选：无脚本时全部条目照常显示 */
.page-news:has(#f-version:checked) .entry:not(.entry--version),
.page-news:has(#f-column:checked) .entry:not(.entry--column),
.page-news:has(#f-topic:checked) .entry:not(.entry--topic),
.page-news:has(#f-cadence:checked) .entry:not(.entry--cadence) {
  display: none;
}

/* ---------- 回看 ---------- */

.page-news .revisit {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-news .revisit__card {
  border: 2px solid var(--paper-45);
  padding: 16px 16px 18px;
  background: rgba(244, 233, 212, 0.05);
  transition: border-color var(--ease), background var(--ease);
}

.page-news .revisit__card:hover {
  border-color: var(--jade);
  background: rgba(0, 168, 143, 0.1);
}

.page-news .revisit__tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--sand);
  margin-bottom: 8px;
}

.page-news .revisit__title {
  font-size: 17px;
  color: var(--paper);
  margin-bottom: 9px;
}

.page-news .revisit__text {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--paper-66);
}

.page-news .revisit__text a {
  color: var(--sand);
  text-decoration: none;
  border-bottom: 1px solid var(--sand);
  transition: color var(--ease), border-color var(--ease);
}

.page-news .revisit__text a:hover {
  color: var(--jade);
  border-bottom-color: var(--jade);
}

.page-news .revisit__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-news .entry summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "tag title time";
    padding: 14px 18px;
  }

  .page-news .entry__body {
    padding: 14px 18px 18px;
  }

  .page-news .block-head--row {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-news .news-figure--side {
    margin-bottom: 0;
  }

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

@media (min-width: 760px) {
  .page-news .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 24px;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero__in {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .news-shell {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: clamp(30px, 3.4vw, 48px);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

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

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

@media (min-width: 1040px) {
  .page-news .topics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .topic--feature {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: stretch;
  }

  .page-news .topic--feature .topic__img {
    height: 100%;
    border-bottom: 0;
    border-right: 2px solid var(--ink);
  }

  .page-news .topic--feature .topic__body {
    padding: 22px 24px;
    justify-content: center;
  }
}

@media (min-width: 720px) and (max-width: 1039px) {
  .page-news .topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .topic--feature {
    grid-column: 1 / -1;
  }

  .page-news .topic:last-child {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-btn,
  .page-news .entry,
  .page-news .topic,
  .page-news .filter__chip,
  .page-news .rail-links a,
  .page-news .revisit__card {
    transition: none;
  }

  .page-news .news-btn:hover,
  .page-news .entry:hover,
  .page-news .topic:hover,
  .page-news .filter__chip:hover {
    transform: none;
  }
}