.page-news {
  --rail: 172px;
  --entry-pad: clamp(18px, 2.6vw, 28px);
  --track: calc(var(--entry-pad) + var(--rail));
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 32px) 0 clamp(36px, 5vw, 64px);
  background: var(--mist);
}
.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--aqua);
  clip-path: polygon(0 0, 56% 0, 30% 100%, 0 100%);
  opacity: 0.75;
  pointer-events: none;
}
.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -14vmax;
  bottom: -22vmax;
  width: 52vmax;
  height: 52vmax;
  border-radius: 50%;
  background-image: repeating-radial-gradient(circle at center, transparent 0 44px, var(--lane) 44px 45px);
  opacity: 0.28;
  pointer-events: none;
}
.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
}
.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  margin-top: clamp(24px, 4vw, 44px);
}
.page-news .news-hero__text {
  max-width: 34em;
}
.page-news .news-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 6.4vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--ink);
}
.page-news .news-hero__lead {
  margin: 20px 0 0;
  max-width: 30em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--deep);
}
.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}
.page-news .news-hero__figure {
  margin: 0;
  position: relative;
}
.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}
.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--lane);
}
.page-news .news-hero__stats dt {
  font-size: 13px;
  color: var(--rock);
  letter-spacing: 0.02em;
}
.page-news .news-hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 900;
  color: var(--deep);
  letter-spacing: -0.01em;
}
.page-news .news-hero__stats dd .mono {
  font-family: var(--font-mono);
  color: var(--ink);
}

/* ---------- 时间轴区 ---------- */
.page-news .news-anchor {
  display: block;
  height: 0;
  scroll-margin-top: 150px;
}
.page-news .news-filter {
  position: sticky;
  top: 84px;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  margin-bottom: 8px;
  background: var(--mist);
  box-shadow: 0 12px 20px -16px rgba(16, 42, 56, 0.6);
}
.page-news .news-filter__label {
  flex: 0 0 auto;
  margin: 0;
  font-size: 13px;
  color: var(--rock);
  letter-spacing: 0.06em;
}
.page-news .news-filter__chips {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-news .news-filter__chips::-webkit-scrollbar {
  display: none;
}
.page-news .news-filter__chips li {
  flex: 0 0 auto;
}
.page-news .chip {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--lane);
  border-radius: 999px;
  background: var(--mist);
  color: var(--deep);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-news .chip:hover,
.page-news .chip:focus-visible {
  background: var(--aqua);
  border-color: var(--lane);
}
.page-news #cat-change:target ~ .news-filter .chip[href="#cat-change"],
.page-news #cat-new:target ~ .news-filter .chip[href="#cat-new"],
.page-news #cat-opt:target ~ .news-filter .chip[href="#cat-opt"],
.page-news #cat-notice:target ~ .news-filter .chip[href="#cat-notice"] {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ink);
  font-weight: 700;
}
.page-news #cat-change:target ~ .timeline > .entry:not(.entry--change),
.page-news #cat-new:target ~ .timeline > .entry:not(.entry--new),
.page-news #cat-opt:target ~ .timeline > .entry:not(.entry--opt),
.page-news #cat-notice:target ~ .timeline > .entry:not(.entry--notice) {
  display: none;
}

.page-news .news-timeline__head {
  margin: clamp(20px, 3vw, 32px) 0 22px;
}
.page-news .news-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.16;
  color: var(--ink);
  margin: 0;
}
.page-news .news-timeline__hint {
  margin: 12px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--rock);
}

.page-news .timeline {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--clay);
}
.page-news .timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--track);
  width: 2px;
  background: var(--aqua);
  z-index: 0;
}
.page-news .entry {
  position: relative;
  z-index: 1;
  display: block;
}
.page-news .entry + .entry {
  border-top: 1px solid var(--aqua);
}
.page-news .entry::before {
  content: "";
  position: absolute;
  top: 26px;
  left: calc(var(--track) - 6px);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lane);
  box-shadow: 0 0 0 4px var(--clay);
  transition: background var(--dur) var(--ease);
  z-index: 2;
}
.page-news .entry[open]::before {
  background: var(--coral);
}
.page-news .entry-summary {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr) 18px;
  align-items: start;
  gap: 0;
  padding: var(--entry-pad);
  cursor: pointer;
  list-style: none;
}
.page-news .entry-summary::-webkit-details-marker {
  display: none;
}
.page-news .entry-summary:hover .entry-title {
  color: var(--deep);
}
.page-news .entry-summary:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: -3px;
}
.page-news .entry-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-right: 18px;
  text-align: right;
}
.page-news .entry-ver {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--deep);
  letter-spacing: -0.01em;
}
.page-news .entry-when {
  font-size: 12px;
  line-height: 1.55;
  color: var(--rock);
}
.page-news .entry-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  min-width: 0;
}
.page-news .entry-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}
.page-news .entry-tagline {
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}
.page-news .entry-main .tag {
  margin-top: 4px;
}
.page-news .entry--change[open] .entry-summary {
  border-left: 3px solid var(--coral);
  padding-left: calc(var(--entry-pad) - 3px);
}
.page-news .entry--change[open]::before {
  background: var(--coral);
}
.page-news .entry-mark {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  justify-self: end;
  border-right: 2px solid var(--deep);
  border-bottom: 2px solid var(--deep);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}
.page-news .entry[open] .entry-mark {
  transform: rotate(-135deg);
}
.page-news .entry-body {
  padding: 0 var(--entry-pad) calc(var(--entry-pad) + 4px) calc(var(--track) + 6px);
  animation: news-fade 220ms var(--ease);
}
@keyframes news-fade {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-news .entry-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 22px;
  margin: 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--lane);
}
.page-news .entry-facts div {
  min-width: 0;
}
.page-news .entry-facts dt {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--rock);
}
.page-news .entry-facts dd {
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--deep);
}
.page-news .entry-facts dd.mono {
  font-family: var(--font-mono);
}

/* ---------- 字段说明 ---------- */
.page-news .news-read {
  background: var(--mist);
}
.page-news .news-read__lead {
  max-width: 36em;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--deep);
}
.page-news .news-read__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(24px, 3vw, 36px);
}
.page-news .read-card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--mist);
  border: 1px solid var(--aqua);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-news .read-card:nth-child(2n) {
  background: var(--aqua);
  border-color: var(--lane);
}
.page-news .read-card:hover {
  background: var(--coral-mist);
  border-color: var(--coral);
}
.page-news .read-card__index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lane);
}
.page-news .read-card__title {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-news .read-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--deep);
}

/* ---------- 移动端打不开 ---------- */
.page-news .news-mobile {
  background: var(--aqua);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 40px), 0 100%);
  padding-bottom: clamp(56px, 7vw, 88px);
}
.page-news .news-mobile__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}
.page-news .news-mobile__lead {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--deep);
}
.page-news .step-list {
  list-style: none;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-news .step-list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--mist);
  border-left: 3px solid var(--lane);
  transition: border-color var(--dur) var(--ease);
}
.page-news .step-list li:hover {
  border-color: var(--coral);
}
.page-news .step-list__num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--coral);
  line-height: 1.5;
}
.page-news .step-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-news .step-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--deep);
}
.page-news .news-mobile__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-news .news-mobile__figure {
  margin: 0;
}
.page-news .news-mobile__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
  border: 1px solid var(--mist);
}

/* ---------- 版本对照 ---------- */
.page-news .news-versions {
  background: var(--mist);
}
.page-news .news-versions__figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}
.page-news .news-versions__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}
.page-news .news-versions__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(22px, 3vw, 32px);
}
.page-news .vs-panel {
  position: relative;
  padding: 24px 22px 26px;
  background: var(--mist);
  border: 1px solid var(--aqua);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}
.page-news .vs-panel--now {
  background: var(--mint);
  border-color: var(--moss);
}
.page-news .vs-panel__ver {
  display: inline-block;
  padding: 3px 9px;
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.page-news .vs-panel--now .vs-panel__ver {
  background: var(--coral);
  color: var(--ink);
}
.page-news .vs-panel__name {
  margin: 14px 0 8px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-news .vs-panel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--deep);
}
.page-news .vs-panel__facts {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--lane);
  display: grid;
  gap: 8px;
}
.page-news .vs-panel__facts dt {
  font-size: 12px;
  color: var(--rock);
  letter-spacing: 0.04em;
}
.page-news .vs-panel__facts dd {
  margin: 3px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}
.page-news .news-versions__foot {
  max-width: 40em;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--coral);
  font-size: 15px;
  line-height: 1.8;
  color: var(--deep);
}

/* ---------- 更新节奏 ---------- */
.page-news .news-cadence {
  background: var(--clay);
}
.page-news .news-cadence__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}
.page-news .news-cadence__figure {
  margin: 0;
}
.page-news .news-cadence__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}
.page-news .news-cadence__text p {
  max-width: 34em;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--deep);
}
.page-news .cadence-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-news .cadence-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid var(--aqua);
  font-size: 14px;
  line-height: 1.7;
  color: var(--deep);
}
.page-news .cadence-list .mono {
  flex: 0 0 auto;
  min-width: 84px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--lane);
  letter-spacing: 0.02em;
}
.page-news .news-cadence__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .page-news .news-read__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .news-versions__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .vs-panel--now {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .page-news .news-hero__grid,
  .page-news .news-mobile__inner,
  .page-news .news-cadence__inner {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .news-hero__figure {
    order: 2;
  }
  .page-news .news-hero::before {
    clip-path: polygon(0 0, 100% 0, 100% 34%, 0 52%);
    opacity: 0.55;
  }
  .page-news .news-mobile {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
  }
  .page-news .news-cadence__figure {
    order: -1;
  }
  .page-news .news-filter {
    top: 64px;
  }
}

@media (max-width: 720px) {
  .page-news {
    --rail: 0px;
    --entry-pad: 16px;
  }
  .page-news .timeline::before {
    left: 10px;
  }
  .page-news .entry::before {
    left: 6px;
    top: 22px;
  }
  .page-news .entry-summary {
    grid-template-columns: minmax(0, 1fr) 18px;
    padding: 18px 16px 18px 28px;
    gap: 6px;
  }
  .page-news .entry-meta {
    grid-column: 1 / -1;
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
    padding-right: 0;
    text-align: left;
  }
  .page-news .entry-main {
    grid-column: 1 / 2;
  }
  .page-news .entry-mark {
    grid-column: 2 / 3;
  }
  .page-news .entry--change[open] .entry-summary {
    padding-left: 25px;
  }
  .page-news .entry-body {
    padding: 0 16px 20px 28px;
  }
  .page-news .entry-facts {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .news-filter {
    flex-wrap: wrap;
    gap: 8px;
  }
  .page-news .news-filter__label {
    width: 100%;
  }
  .page-news .news-hero__stats {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }
  .page-news .news-hero__stats div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px dashed var(--lane);
    padding-bottom: 10px;
  }
  .page-news .news-hero__stats dd {
    margin: 0;
  }
  .page-news .news-read__grid,
  .page-news .news-versions__grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-news .news-hero__actions .btn,
  .page-news .news-mobile__actions .btn,
  .page-news .news-cadence__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}