.page-news {
  --news-line: 1px solid var(--c-grid);
  --news-gap: clamp(18px, 3vw, 34px);
  --news-pad: clamp(46px, 7vw, 88px);
  background:
    radial-gradient(1200px 420px at 10% -10%, rgba(0, 229, 255, .10), transparent 64%),
    radial-gradient(880px 340px at 94% 2%, rgba(255, 107, 26, .06), transparent 62%),
    var(--c-deep);
  color: var(--c-white);
  overflow-x: clip;
}

/* ---------- 区块骨架 ---------- */
.page-news .section {
  padding: var(--news-pad) 0;
}
.page-news .section--tight {
  padding: clamp(32px, 5vw, 56px) 0 clamp(50px, 7vw, 90px);
}

.page-news .section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
  border-top: var(--news-line);
  padding-top: clamp(16px, 2vw, 24px);
}
.page-news .section-head__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-cyan);
}
.page-news .section-head__title {
  margin: 0;
  font-size: clamp(26px, 4.8vw, 44px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.018em;
  color: var(--c-pure);
}
.page-news .section-head__note {
  margin: 0;
  max-width: 62ch;
  color: var(--c-titan);
  font-size: 15px;
  line-height: 1.85;
}
@media (min-width: 900px) {
  .page-news .section-head {
    grid-template-columns: 74px minmax(0, 1fr);
    column-gap: 26px;
    row-gap: 8px;
  }
  .page-news .section-head__index {
    grid-row: 1 / span 2;
    padding-top: 8px;
  }
  .page-news .section-head__title,
  .page-news .section-head__note {
    grid-column: 2;
  }
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-top: clamp(22px, 4vw, 42px);
  padding-bottom: clamp(30px, 4.6vw, 56px);
}

.page-news .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 3.4vw, 40px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--c-titan);
}
.page-news .breadcrumbs a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-news .breadcrumbs a:hover,
.page-news .breadcrumbs a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}
.page-news .breadcrumbs [aria-current="page"] {
  color: var(--c-white);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
}
@media (min-width: 1000px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: end;
  }
}

.page-news .news-hero__text .eyebrow {
  margin: 0 0 14px;
}

.page-news .news-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(33px, 7.6vw, 66px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.026em;
  color: var(--c-pure);
  text-wrap: balance;
}
.page-news .news-hero h1::after {
  content: "";
  display: block;
  width: 76px;
  height: 3px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-orange));
}

.page-news .news-hero__text .lead {
  max-width: 54ch;
  color: var(--c-ice);
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.85;
  margin: 0 0 22px;
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
}

.page-news .news-hero__figure {
  border: var(--news-line);
}

/* ---------- 首屏目录条 ---------- */
.page-news .news-index {
  margin-top: clamp(30px, 4.6vw, 56px);
  border-top: var(--news-line);
  border-bottom: var(--news-line);
}
.page-news .news-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}
.page-news .news-index__item + .news-index__item {
  border-top: var(--news-line);
}
.page-news .news-index__link {
  display: grid;
  gap: 6px;
  height: 100%;
  padding: 15px clamp(12px, 1.6vw, 20px);
  text-decoration: none;
  color: var(--c-white);
  transition: background-color .22s var(--ease), color .22s var(--ease);
}
.page-news .news-index__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--c-titan);
  transition: color .22s var(--ease);
}
.page-news .news-index__label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .01em;
}
.page-news .news-index__link:hover,
.page-news .news-index__link:focus-visible {
  background: rgba(0, 229, 255, .07);
}
.page-news .news-index__link:hover .news-index__num,
.page-news .news-index__link:focus-visible .news-index__num {
  color: var(--c-cyan);
}
@media (min-width: 760px) {
  .page-news .news-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-news .news-index__item + .news-index__item {
    border-top: 0;
    border-left: var(--news-line);
  }
}

/* ---------- 更新日志列表 ---------- */
.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--news-line);
}
.page-news .log-entry {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-bottom: var(--news-line);
  transition: background-color .25s var(--ease);
}
@media (min-width: 900px) {
  .page-news .log-entry {
    grid-template-columns: 178px minmax(0, 1fr);
    column-gap: clamp(24px, 3vw, 48px);
    align-items: start;
  }
}
.page-news .log-entry:hover {
  background: rgba(0, 229, 255, .028);
}

.page-news .log-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  font-size: 12px;
  letter-spacing: .06em;
}
@media (min-width: 900px) {
  .page-news .log-entry__meta {
    flex-direction: column;
    gap: 6px;
  }
}
.page-news .log-entry__when {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-orange);
}
.page-news .log-entry__code {
  font-family: var(--font-mono);
  color: var(--c-ice);
}

.page-news .log-entry__main {
  display: grid;
  gap: 10px;
  min-width: 0;
}
.page-news .log-entry__tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news .log-entry__title {
  margin: 0;
  font-size: clamp(18.5px, 2.4vw, 25px);
  font-weight: 700;
  line-height: 1.38;
  letter-spacing: -.012em;
  color: var(--c-pure);
}
.page-news .log-entry__summary {
  margin: 0;
  max-width: 66ch;
  color: var(--c-titan);
  font-size: 15.3px;
  line-height: 1.85;
}

/* ---------- 折叠面板 ---------- */
.page-news .accordion {
  margin-top: 6px;
  border-top: 1px dashed var(--c-grid);
}
.page-news .accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  padding: 12px 0;
  background: none;
  border: 0;
  color: var(--c-ice);
  font-family: var(--font-sans);
  font-size: 13.5px;
  letter-spacing: .02em;
  text-align: left;
  cursor: pointer;
  transition: color .2s var(--ease);
}
.page-news .accordion__trigger:hover,
.page-news .accordion__trigger:focus-visible {
  color: var(--c-cyan);
}
.page-news .accordion__mark {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
}
.page-news .accordion__mark::before,
.page-news .accordion__mark::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}
.page-news .accordion__mark::before {
  left: 0;
  right: 0;
  top: 5px;
  height: 1.5px;
}
.page-news .accordion__mark::after {
  top: 0;
  bottom: 0;
  left: 5px;
  width: 1.5px;
}
.page-news .accordion__trigger[aria-expanded="true"] .accordion__mark::after {
  transform: scaleY(0);
  opacity: 0;
}
.page-news .accordion__body {
  max-width: 64ch;
  padding: 2px 0 16px;
  color: var(--c-ice);
  font-size: 14.5px;
  line-height: 1.85;
}
.page-news .accordion__body p {
  margin: 0 0 10px;
}
.page-news .accordion__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 版本演进 ---------- */
.page-news .version-layout {
  display: grid;
  gap: clamp(26px, 3.6vw, 46px);
}
@media (min-width: 1000px) {
  .page-news .version-layout {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: start;
  }
}

.page-news .version-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}
.page-news .version-item {
  position: relative;
  display: grid;
  gap: 9px;
  padding: 20px 0 20px 24px;
  border-left: 1px solid var(--c-grid);
}
.page-news .version-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 27px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-grid);
}
.page-news .version-item.is-current {
  border-left-color: var(--c-cyan);
}
.page-news .version-item.is-current::before {
  background: var(--c-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 26, .16);
}
.page-news .version-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
}
.page-news .version-item__tag {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--c-cyan);
}
.page-news .version-item.is-current .version-item__tag {
  color: var(--c-orange);
}
.page-news .version-item__state {
  padding: 2px 8px;
  border: var(--news-line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--c-titan);
}
.page-news .version-item__desc {
  margin: 0;
  max-width: 60ch;
  color: var(--c-titan);
  font-size: 14.8px;
  line-height: 1.85;
}
.page-news .version-figure {
  border: var(--news-line);
}
.page-news .version-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--c-titan);
}

/* ---------- 专题系列 ---------- */
.page-news .series-feature {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(18px, 2.4vw, 28px);
  border: var(--news-line);
  background: linear-gradient(140deg, rgba(0, 229, 255, .065), rgba(10, 22, 51, 0) 58%);
}
@media (min-width: 940px) {
  .page-news .series-feature {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }
}
.page-news .series-feature__figure {
  border: var(--news-line);
}
.page-news .series-feature__body .eyebrow {
  margin: 0 0 12px;
}
.page-news .series-feature__body h3 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.7vw, 29px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--c-pure);
}
.page-news .series-feature__body p {
  margin: 0 0 20px;
  max-width: 56ch;
  color: var(--c-titan);
  font-size: 15.3px;
  line-height: 1.85;
}

.page-news .series-grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
  margin-top: clamp(16px, 2.2vw, 24px);
}
@media (min-width: 800px) {
  .page-news .series-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.page-news .series-card {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(20px, 2.6vw, 30px);
  border: var(--news-line);
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}
.page-news .series-card:hover {
  border-color: var(--c-cyan);
  background: rgba(0, 229, 255, .045);
}
.page-news .series-card .eyebrow {
  margin: 0;
}
.page-news .series-card h3 {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: -.01em;
  color: var(--c-pure);
}
.page-news .series-card p {
  margin: 0;
  color: var(--c-titan);
  font-size: 14.8px;
  line-height: 1.85;
}
.page-news .series-card .index-link {
  align-self: end;
  justify-self: start;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  padding-bottom: 3px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-news .series-card .index-link:hover,
.page-news .series-card .index-link:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence-layout {
  display: grid;
  gap: clamp(24px, 3.4vw, 42px);
}
@media (min-width: 940px) {
  .page-news .cadence-layout {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    align-items: start;
  }
}
.page-news .cadence-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-grid);
  border: var(--news-line);
}
.page-news .cadence-stats .stat {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(16px, 2vw, 22px);
  background: var(--c-deep-2);
}
.page-news .cadence-stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-cyan);
}
.page-news .cadence-stats .stat:nth-child(2) .stat__value,
.page-news .cadence-stats .stat:nth-child(4) .stat__value {
  color: var(--c-orange);
}
.page-news .cadence-stats .stat__label {
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--c-titan);
}
.page-news .cadence-figure {
  border: var(--news-line);
}
.page-news .cadence-note {
  margin: clamp(22px, 3vw, 34px) 0 0;
  max-width: 78ch;
  padding-left: 18px;
  border-left: 2px solid var(--c-cyan);
  color: var(--c-ice);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 回访入口 ---------- */
.page-news .start-panel {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(24px, 3.2vw, 44px);
  border: var(--news-line);
  border-top: 2px solid var(--c-orange);
  background: linear-gradient(120deg, rgba(255, 107, 26, .075), rgba(10, 22, 51, 0) 62%);
}
@media (min-width: 940px) {
  .page-news .start-panel {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}
.page-news .start-panel__intro .eyebrow {
  margin: 0 0 12px;
}
.page-news .start-panel__intro h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.018em;
  color: var(--c-pure);
}
.page-news .start-panel__intro p {
  margin: 0;
  max-width: 52ch;
  color: var(--c-titan);
  font-size: 15.2px;
  line-height: 1.85;
}

.page-news .start-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  border-top: var(--news-line);
}
.page-news .start-links li {
  border-bottom: var(--news-line);
}
.page-news .start-links a {
  display: block;
  padding: 14px 0 14px 26px;
  position: relative;
  color: var(--c-white);
  font-size: 15px;
  text-decoration: none;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}
.page-news .start-links a::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 50%;
  width: 8px;
  height: 1.5px;
  background: var(--c-cyan);
  transform: translateY(-50%);
  transition: background-color .2s var(--ease), width .2s var(--ease);
}
.page-news .start-links a:hover,
.page-news .start-links a:focus-visible {
  color: var(--c-cyan);
  padding-left: 32px;
}
.page-news .start-links a:hover::before,
.page-news .start-links a:focus-visible::before {
  background: var(--c-orange);
  width: 14px;
}

/* ---------- 细节 ---------- */
.page-news .media-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news [data-reveal] {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}