.page-news {
  --news-rule: 2px solid var(--ky-grid);
  --news-rule-hi: 2px solid var(--ky-grid-hi);
  --news-rail: 176px;
  background: var(--ky-void);
  color: var(--ky-body);
}

/* ---------- 页首 ---------- */
.page-news .page-news__top {
  padding-top: clamp(84px, 11vw, 124px);
}

.page-news .page-news__top-grid {
  max-width: 62rem;
}

.page-news .page-news__title {
  margin: 14px 0 0;
  font-family: var(--ky-font-display);
  font-size: clamp(2.05rem, 6.4vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -0.012em;
  color: var(--ky-white);
}

.page-news .page-news__title-hl {
  display: block;
  color: var(--ky-cyan);
}

.page-news .page-news__lede {
  margin: 20px 0 0;
  max-width: 48rem;
  font-size: clamp(1rem, 1.55vw, 1.125rem);
  line-height: 1.85;
  color: var(--ky-body);
}

.page-news .page-news__quick {
  list-style: none;
  margin: 28px 0 0;
  padding: 14px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  border-top: var(--news-rule);
  border-bottom: var(--news-rule);
}

.page-news .page-news__quick li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.page-news .page-news__quick-num {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--ky-cyan);
  letter-spacing: -0.02em;
}

.page-news .page-news__hero-figure {
  margin-top: 34px;
}

.page-news .page-news__hero-figure .ky-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06);
}

/* ---------- 通用章节头 ---------- */
.page-news .page-news__sec-head {
  margin-bottom: 28px;
  max-width: 56rem;
}

.page-news .page-news__h2 {
  margin: 12px 0 0;
  font-family: var(--ky-font-display);
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.18;
  letter-spacing: -0.008em;
  color: var(--ky-white);
}

.page-news .page-news__sec-note {
  margin: 14px 0 0;
  line-height: 1.85;
  color: var(--ky-body);
}

/* ---------- 头条 ---------- */
.page-news .page-news__headline-sec {
  background:
    linear-gradient(180deg, rgba(11, 20, 36, 0.9), rgba(4, 7, 15, 0) 70%),
    var(--ky-void);
}

.page-news .page-news__headline {
  display: grid;
  border: var(--news-rule-hi);
  background: var(--ky-hull);
  box-shadow: var(--ky-shadow-hard);
}

.page-news .page-news__headline-main {
  padding: clamp(20px, 4.2vw, 42px);
  border-bottom: var(--news-rule-hi);
}

.page-news .page-news__headline-kicker {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ky-amber);
}

.page-news .page-news__headline-title {
  margin: 12px 0 16px;
  font-family: var(--ky-font-display);
  font-size: clamp(1.3rem, 2.9vw, 2.1rem);
  line-height: 1.25;
  color: var(--ky-white);
}

.page-news .page-news__headline-main p {
  margin: 0 0 14px;
  line-height: 1.85;
}

.page-news .page-news__headline-main .ky-btn {
  margin-top: 10px;
}

.page-news .page-news__facts {
  margin: 0;
  padding: clamp(20px, 4.2vw, 34px);
  display: grid;
  gap: 16px;
}

.page-news .page-news__facts div {
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--ky-grid);
}

.page-news .page-news__facts div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .page-news__facts dt {
  font-family: var(--ky-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ky-grid-hi);
}

.page-news .page-news__facts dd {
  margin: 7px 0 0;
  font-family: var(--ky-font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ky-cyan);
}

/* ---------- 筛选 ---------- */
.page-news .page-news__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .page-news__legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 18px 0 30px;
  padding: 0;
  font-size: 0.8125rem;
}

/* ---------- 时间轴条目 ---------- */
.page-news .page-news__timeline {
  border-top: var(--news-rule);
}

.page-news .page-news__entry {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 24px 12px 24px 16px;
  border-bottom: var(--news-rule);
  transition: background 0.28s var(--ky-ease), padding-left 0.28s var(--ky-ease);
}

.page-news .page-news__entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 0;
  background: var(--ky-cyan);
  transition: height 0.32s var(--ky-ease);
}

.page-news .page-news__entry:hover,
.page-news .page-news__entry:focus-within {
  background: linear-gradient(90deg, rgba(47, 243, 210, 0.07), rgba(47, 243, 210, 0) 62%);
  padding-left: 22px;
}

.page-news .page-news__entry:hover::before,
.page-news .page-news__entry:focus-within::before {
  height: 100%;
}

.page-news .page-news__rail {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-news .page-news__code {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--ky-grid-hi);
}

.page-news .page-news__tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 0.75rem;
  line-height: 1.5;
  letter-spacing: 0.05em;
  border: 1px solid currentColor;
  border-radius: var(--ky-radius);
  white-space: nowrap;
}

.page-news .page-news__tag--cyan { color: var(--ky-cyan); }
.page-news .page-news__tag--amber { color: var(--ky-amber); }
.page-news .page-news__tag--violet { color: var(--ky-violet); }
.page-news .page-news__tag--orange { color: var(--ky-orange); }
.page-news .page-news__tag--body { color: var(--ky-body); }

.page-news .page-news__entry-title {
  margin: 0 0 9px;
  font-family: var(--ky-font-display);
  font-size: clamp(1.05rem, 2.1vw, 1.4rem);
  line-height: 1.4;
  color: var(--ky-white);
}

.page-news .page-news__entry-text {
  margin: 0;
  max-width: 48rem;
  line-height: 1.85;
}

.page-news .page-news__entry-time {
  margin: 11px 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--ky-grid-hi);
}

/* ---------- 版本迭代 ---------- */
.page-news .page-news__versions-sec {
  background:
    linear-gradient(180deg, rgba(17, 29, 50, 0.55), rgba(4, 7, 15, 0) 60%),
    var(--ky-void);
}

.page-news .page-news__versions {
  display: grid;
  gap: 32px;
}

.page-news .page-news__versions-figure {
  margin: 0;
}

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

.page-news .page-news__version-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 4px;
  border-left: var(--news-rule-hi);
}

.page-news .page-news__version-item {
  position: relative;
  padding: 0 0 28px 26px;
}

.page-news .page-news__version-item:last-child {
  padding-bottom: 0;
}

.page-news .page-news__version-item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--ky-void);
  border: 2px solid var(--ky-cyan);
  transform: rotate(45deg);
}

.page-news .page-news__version-year {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--ky-cyan);
}

.page-news .page-news__version-title {
  margin: 8px 0 10px;
  font-family: var(--ky-font-display);
  font-size: clamp(1.05rem, 2.1vw, 1.3rem);
  line-height: 1.35;
  color: var(--ky-white);
}

.page-news .page-news__version-text {
  margin: 0;
  line-height: 1.85;
}

.page-news .page-news__versions-foot {
  margin: 30px 0 0;
  padding-top: 18px;
  border-top: var(--news-rule);
  line-height: 1.85;
}

.page-news .page-news__versions-foot a {
  color: var(--ky-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 专题系列 ---------- */
.page-news .page-news__topics {
  display: grid;
  gap: 22px;
}

.page-news .page-news__topic {
  display: flex;
  flex-direction: column;
  border: var(--news-rule-hi);
  background: var(--ky-hull);
  transition: transform 0.3s var(--ky-ease), box-shadow 0.3s var(--ky-ease);
}

.page-news .page-news__topic:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--ky-shadow-hard);
}

.page-news .page-news__topic-media {
  border-bottom: var(--news-rule-hi);
}

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

.page-news .page-news__topic-media .ky-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .page-news__topic-media--plain {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 148px;
  background:
    repeating-linear-gradient(45deg, rgba(34, 49, 74, 0.8) 0 2px, rgba(4, 7, 15, 0) 2px 14px),
    var(--ky-hull-2);
}

.page-news .page-news__topic-plate {
  font-size: 1.1rem;
  letter-spacing: 0.36em;
  color: var(--ky-violet);
}

.page-news .page-news__topic-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 22px 22px 24px;
}

.page-news .page-news__topic-label {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--ky-grid-hi);
}

.page-news .page-news__topic-title {
  margin: 10px 0 12px;
  font-family: var(--ky-font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.3;
  color: var(--ky-white);
}

.page-news .page-news__topic-text {
  margin: 0 0 18px;
  line-height: 1.85;
  flex: 1;
}

.page-news .page-news__topic-link {
  align-self: flex-start;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
  color: var(--ky-cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color 0.24s var(--ky-ease), border-color 0.24s var(--ky-ease);
}

.page-news .page-news__topic-link:hover {
  color: var(--ky-white);
}

/* ---------- 订阅提醒 ---------- */
.page-news .page-news__cta {
  display: grid;
  gap: 26px;
  padding: clamp(24px, 5vw, 48px);
  border: var(--news-rule-hi);
  background:
    linear-gradient(150deg, var(--ky-hull-2), var(--ky-hull) 62%),
    var(--ky-hull);
  box-shadow: var(--ky-shadow-hard);
}

.page-news .page-news__cta-text .ky-eyebrow {
  margin: 0;
}

.page-news .page-news__cta-title {
  margin: 12px 0 16px;
  font-family: var(--ky-font-display);
  font-size: clamp(1.4rem, 3.2vw, 2.2rem);
  line-height: 1.2;
  color: var(--ky-white);
}

.page-news .page-news__cta-text p {
  margin: 0 0 14px;
  max-width: 46rem;
  line-height: 1.85;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .page-news__topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .page-news__topics > .page-news__topic:nth-child(3) {
    grid-column: 1 / -1;
  }

  .page-news .page-news__topics > .page-news__topic:nth-child(3) .ky-figure--wide {
    max-height: 340px;
    overflow: hidden;
  }
}

@media (min-width: 860px) {
  .page-news .page-news__entry {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 26px;
    padding: 26px 16px 26px 20px;
    align-items: start;
  }

  .page-news .page-news__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 4px;
  }
}

@media (min-width: 900px) {
  .page-news .page-news__headline {
    grid-template-columns: minmax(0, 1.7fr) minmax(250px, 1fr);
  }

  .page-news .page-news__headline-main {
    border-bottom: 0;
    border-right: var(--news-rule-hi);
  }

  .page-news .page-news__versions {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 40px;
    align-items: start;
  }

  .page-news .page-news__versions-figure {
    position: sticky;
    top: calc(var(--ky-header-h) + 24px);
  }

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

  .page-news .page-news__topics > .page-news__topic:nth-child(3) {
    grid-column: auto;
  }

  .page-news .page-news__topics > .page-news__topic:nth-child(3) .ky-figure--wide {
    max-height: none;
  }

  .page-news .page-news__cta {
    grid-template-columns: minmax(0, 1.6fr) minmax(220px, 0.9fr);
    align-items: center;
  }

  .page-news .page-news__cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .page-news__entry,
  .page-news .page-news__entry::before,
  .page-news .page-news__topic,
  .page-news .page-news__topic-link {
    transition: none;
  }

  .page-news .page-news__topic:hover {
    transform: none;
  }
}