.page-news {
  --col-rail: 268px;
  --col-gap: 56px;
}

.page-news .col-crumbs-wrap {
  padding-top: 22px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-news .col-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--tk-line);
  background: linear-gradient(180deg, #0B1B3A 0%, #060F22 100%);
}

.page-news .col-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(34, 64, 110, .55) 1px, transparent 1px),
    linear-gradient(0deg, rgba(34, 64, 110, .55) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 90% at 18% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 90% at 18% 0%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-news .col-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 30px;
  padding-top: 34px;
  padding-bottom: 46px;
}

.page-news .col-kicker {
  margin: 0 0 14px;
  font-family: var(--tk-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--tk-cyan);
}

.page-news .col-hero-title {
  margin: 0 0 18px;
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--tk-white);
  overflow-wrap: break-word;
}

.page-news .col-hero-lead {
  margin: 0;
  max-width: 52ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--tk-grey);
}

.page-news .col-hero-media {
  margin: 0;
  border: 1px solid var(--tk-line);
  border-radius: var(--tk-radius);
  overflow: hidden;
  background: var(--tk-ink);
}

.page-news .col-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 主体布局 ---------- */
.page-news .col-layout {
  display: grid;
  gap: 44px;
  padding-top: 44px;
  padding-bottom: 64px;
}

.page-news .col-main {
  min-width: 0;
}

/* ---------- 分类标签带 ---------- */
.page-news .col-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding-bottom: 20px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--tk-line);
}

.page-news .col-tab {
  display: inline-block;
  padding: 8px 15px;
  border: 1px solid var(--tk-line);
  border-radius: 999px;
  font-family: var(--tk-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--tk-grey);
  text-decoration: none;
  transition: color .2s var(--tk-ease), border-color .2s var(--tk-ease), background-color .2s var(--tk-ease);
}

.page-news .col-tab:hover {
  color: var(--tk-white);
  border-color: var(--tk-cyan);
}

.page-news .col-tab--on {
  background: var(--tk-cyan);
  border-color: var(--tk-cyan);
  color: var(--tk-deep);
}

/* ---------- 区块头 ---------- */
.page-news .col-block-head {
  margin-bottom: 26px;
}

.page-news .col-h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--tk-white);
}

.page-news .col-block-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--tk-grey);
}

/* ---------- 条目卡片 ---------- */
.page-news .col-list-lead {
  display: grid;
  gap: 16px;
  margin-bottom: 8px;
}

.page-news .col-list-sub {
  display: grid;
  gap: 0;
}

.page-news .col-entry {
  position: relative;
  padding: 20px 42px 20px 0;
  border-bottom: 1px solid var(--tk-line);
  transition: border-color .2s var(--tk-ease);
}

.page-news .col-entry:hover,
.page-news .col-entry:focus-visible {
  border-bottom-color: var(--tk-cyan);
}

.page-news .col-entry:focus-visible {
  outline: 2px solid var(--tk-cyan);
  outline-offset: 4px;
}

.page-news .col-entry--lead {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 24px;
  border: 1px solid var(--tk-line);
  border-radius: var(--tk-radius);
  background: linear-gradient(150deg, rgba(20, 38, 74, .85), rgba(11, 27, 58, .5));
}

.page-news .col-entry--lead:hover,
.page-news .col-entry--lead:focus-visible {
  border-color: var(--tk-cyan);
}

.page-news .col-entry-idx {
  font-family: var(--tk-mono);
  font-size: 34px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--tk-cyan);
}

.page-news .col-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-family: var(--tk-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--tk-grey);
}

.page-news .col-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--tk-amber);
}

.page-news .col-meta-topic {
  color: var(--tk-amber);
}

.page-news .col-meta-sep {
  color: var(--tk-line);
}

.page-news .col-entry-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
  color: var(--tk-white);
  overflow-wrap: break-word;
}

.page-news .col-entry-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--tk-grey);
}

.page-news .col-entry-arrow {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translate(-6px, -50%);
  opacity: 0;
  font-family: var(--tk-mono);
  font-size: 15px;
  color: var(--tk-cyan);
  transition: opacity .2s var(--tk-ease), transform .2s var(--tk-ease);
}

.page-news .col-entry-arrow::after {
  content: "→";
}

.page-news .col-entry:hover .col-entry-arrow,
.page-news .col-entry:focus-visible .col-entry-arrow {
  opacity: 1;
  transform: translate(0, -50%);
}

.page-news .col-entry--lead .col-entry-arrow {
  top: 28px;
  transform: translate(-6px, 0);
}

.page-news .col-entry--lead:hover .col-entry-arrow,
.page-news .col-entry--lead:focus-visible .col-entry-arrow {
  transform: translate(0, 0);
}

/* ---------- 专题区块 ---------- */
.page-news .col-topic {
  padding-top: 44px;
  padding-bottom: 44px;
  border-top: 1px solid var(--tk-line);
}

.page-news .col-topic-head {
  margin-bottom: 28px;
}

.page-news .col-topic-idx {
  margin: 0 0 10px;
  font-family: var(--tk-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--tk-orange);
}

.page-news .col-topic-title {
  margin: 0 0 14px;
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--tk-white);
  overflow-wrap: break-word;
}

.page-news .col-topic-lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--tk-grey);
}

.page-news .col-topic-body {
  display: grid;
  gap: 26px;
}

.page-news .col-topic-para {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--tk-grey);
}

.page-news .col-figure {
  margin: 0;
  border: 1px solid var(--tk-line);
  border-radius: var(--tk-radius);
  overflow: hidden;
  background: var(--tk-ink);
}

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

.page-news .col-figure--tall img {
  aspect-ratio: 3 / 4;
}

.page-news .col-facts {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .col-facts li {
  padding: 14px 0;
  border-top: 1px solid var(--tk-line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--tk-grey);
}

.page-news .col-facts li:last-child {
  border-bottom: 1px solid var(--tk-line);
}

.page-news .col-facts strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--tk-white);
}

.page-news .col-facts a {
  color: var(--tk-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 纸色档案区块 */
.page-news .col-topic--paper {
  margin-top: 44px;
  padding: 38px 24px 40px;
  border-top-width: 0;
  border-radius: var(--tk-radius);
}

.page-news .col-topic--paper .col-topic-idx {
  color: #C24A15;
}

.page-news .col-topic--paper .col-topic-title {
  color: var(--tk-deep);
}

.page-news .col-topic--paper .col-topic-lead {
  color: #3A4E76;
}

.page-news .col-topic--paper .col-facts li {
  border-top-color: rgba(34, 64, 110, .32);
  color: #2C4066;
}

.page-news .col-topic--paper .col-facts li:last-child {
  border-bottom-color: rgba(34, 64, 110, .32);
}

.page-news .col-topic--paper .col-facts strong {
  color: var(--tk-deep);
}

.page-news .col-topic--paper .col-figure {
  border-color: rgba(34, 64, 110, .32);
  background: var(--tk-deep);
}

/* 手册区块 */
.page-news .col-topic--manual {
  margin-top: 44px;
  padding: 38px 24px 40px;
  border-top-width: 0;
  border-radius: var(--tk-radius);
  background: linear-gradient(180deg, rgba(20, 38, 74, .75), rgba(11, 27, 58, .25));
}

/* ---------- 翻看方式 ---------- */
.page-news .col-browse {
  display: grid;
  gap: 16px;
  margin-top: 8px;
}

.page-news .col-browse-card {
  padding: 20px;
  border: 1px solid var(--tk-line);
  border-radius: var(--tk-radius);
  background: rgba(20, 38, 74, .5);
  transition: border-color .2s var(--tk-ease);
}

.page-news .col-browse-card:hover {
  border-color: var(--tk-cyan);
}

.page-news .col-browse-idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--tk-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--tk-cyan);
}

.page-news .col-browse-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--tk-white);
}

.page-news .col-browse-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--tk-grey);
}

/* ---------- 更新节奏 ---------- */
.page-news .col-stats {
  display: grid;
  gap: 14px;
  margin: 26px 0 30px;
}

.page-news .col-stat {
  padding-top: 16px;
  border-top: 2px solid var(--tk-cyan);
}

.page-news .col-stat:nth-child(2) {
  border-top-color: var(--tk-orange);
}

.page-news .col-stat:nth-child(3) {
  border-top-color: var(--tk-amber);
}

.page-news .col-stat-num {
  display: block;
  font-family: var(--tk-mono);
  font-size: clamp(28px, 5vw, 44px);
  font-weight: 600;
  line-height: 1.1;
  color: var(--tk-cyan);
}

.page-news .col-stat:nth-child(2) .col-stat-num {
  color: var(--tk-orange);
}

.page-news .col-stat:nth-child(3) .col-stat-num {
  color: var(--tk-amber);
}

.page-news .col-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--tk-grey);
}

/* ---------- 右侧专题窄栏 ---------- */
.page-news .col-rail {
  min-width: 0;
}

.page-news .col-rail-inner {
  padding: 20px;
  border: 1px solid var(--tk-line);
  border-radius: var(--tk-radius);
  background: rgba(20, 38, 74, .42);
}

.page-news .col-rail-title {
  margin: 0 0 14px;
  font-family: var(--tk-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--tk-cyan);
}

.page-news .col-rail-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-news .col-rail-list:last-child {
  margin-bottom: 0;
}

.page-news .col-rail-link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px solid var(--tk-line);
  font-size: 13.5px;
  color: var(--tk-grey);
  text-decoration: none;
  transition: color .2s var(--tk-ease), border-color .2s var(--tk-ease);
}

.page-news .col-rail-link:hover {
  color: var(--tk-white);
  border-bottom-color: var(--tk-cyan);
}

.page-news .col-rail-idx {
  flex: none;
  font-family: var(--tk-mono);
  font-size: 11px;
  color: var(--tk-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 520px) and (max-width: 1079px) {
  .page-news .col-rail-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 22px;
  }
}

@media (min-width: 720px) {
  .page-news .col-list-sub {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }
}

@media (min-width: 760px) {
  .page-news .col-entry-idx {
    font-size: 58px;
  }

  .page-news .col-entry--lead .col-entry-title {
    font-size: clamp(21px, 2.6vw, 27px);
    line-height: 1.4;
    margin-bottom: 10px;
  }

  .page-news .col-browse {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news .col-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 840px) {
  .page-news .col-topic-body {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 38px;
    align-items: start;
  }

  .page-news .col-topic-body--manual {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-news .col-topic--paper {
    padding: 46px 40px 48px;
  }

  .page-news .col-topic--manual {
    padding: 46px 40px 48px;
  }
}

@media (min-width: 900px) {
  .page-news .col-hero-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 46px;
    align-items: end;
    padding-top: 48px;
    padding-bottom: 60px;
  }

  .page-news .col-hero-lead {
    font-size: 16.5px;
  }
}

@media (min-width: 1080px) {
  .page-news .col-layout {
    grid-template-columns: minmax(0, 1fr) var(--col-rail);
    column-gap: var(--col-gap);
    padding-top: 54px;
    padding-bottom: 84px;
  }

  .page-news .col-rail-inner {
    position: sticky;
    top: 94px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .col-entry,
  .page-news .col-entry-arrow,
  .page-news .col-tab,
  .page-news .col-rail-link,
  .page-news .col-browse-card {
    transition: none;
  }
}