.page-news {
  --col-line: rgba(11, 27, 51, .10);
  --col-line-strong: rgba(11, 27, 51, .18);
  background: var(--mist);
  color: var(--ink);
  font-family: var(--body);
}

/* ---------- 首屏 ---------- */
.page-news .col-hero {
  position: relative;
  padding: 40px 0 56px;
  background:
    radial-gradient(130% 120% at 86% 6%, #1F3B66 0%, rgba(31, 59, 102, 0) 62%),
    linear-gradient(158deg, #0B1B33 0%, #14294A 100%);
  color: var(--mist);
  overflow: hidden;
}

.page-news .col-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--amber) 0%, var(--amber) 20%, var(--route) 20%, var(--route) 100%);
  opacity: .85;
}

.page-news .col-hero-grid {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-news .col-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(232, 238, 247, .6);
}

.page-news .col-crumbs a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .col-crumbs a:hover,
.page-news .col-crumbs a:focus-visible {
  color: var(--amber-hi);
  border-bottom-color: currentColor;
}

.page-news .col-crumbs-sep {
  color: rgba(232, 238, 247, .32);
}

.page-news .col-crumbs-current {
  color: var(--mist);
}

.page-news .col-eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--amber-hi);
}

.page-news .col-hero h1 {
  margin: 14px 0 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(27px, 5.6vw, 42px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: #FFFFFF;
}

.page-news .col-hero-lede {
  max-width: 56ch;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(232, 238, 247, .82);
}

.page-news .col-tag-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
}

.page-news .col-hero-stamp {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(232, 238, 247, .58);
}

.page-news .col-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
}

.page-news .col-hero-link {
  font-size: 14px;
  color: rgba(232, 238, 247, .78);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 238, 247, .3);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .col-hero-link:hover,
.page-news .col-hero-link:focus-visible {
  color: var(--amber-hi);
  border-bottom-color: var(--amber-hi);
}

.page-news .col-hero-visual {
  max-width: 420px;
  width: 100%;
  margin: 0 auto;
}

.page-news .col-hero-visual svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 章节通用 ---------- */
.page-news .col-sec {
  padding: 52px 0;
}

.page-news .col-sec--mist {
  background: var(--mist);
}

.page-news .col-sec--paper {
  background: var(--paper);
  border-top: 1px solid var(--col-line);
  border-bottom: 1px solid var(--col-line);
}

.page-news .col-head {
  margin-bottom: 30px;
}

.page-news .col-head .section-band {
  margin-bottom: 14px;
}

.page-news .col-h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.28;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-news .col-sub {
  max-width: 62ch;
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 01 更新列表 ---------- */
.page-news .col-feed {
  margin-top: 8px;
}

.page-news .col-filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  margin-bottom: 22px;
  -webkit-overflow-scrolling: touch;
}

.page-news .col-filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .col-tab {
  flex: 0 0 auto;
  display: block;
  padding: 8px 15px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
  background: rgba(11, 27, 51, .04);
  border: 1px solid var(--col-line);
  border-radius: var(--r-s);
  cursor: pointer;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-news .col-tab:hover {
  color: var(--ink);
  border-color: var(--col-line-strong);
}

.page-news .col-filter-input:checked + .col-tab {
  color: var(--ink);
  font-weight: 700;
  border-color: var(--amber);
  background: rgba(240, 135, 31, .12);
}

.page-news .col-filter-input:focus-visible + .col-tab {
  outline: 2px solid var(--route);
  outline-offset: 2px;
}

.page-news #cf-version:checked ~ .col-feed-body .col-entry:not([data-kind="version"]),
.page-news #cf-adapt:checked ~ .col-feed-body .col-entry:not([data-kind="adapt"]),
.page-news #cf-topic:checked ~ .col-feed-body .col-entry:not([data-kind="topic"]) {
  display: none;
}

.page-news .col-cover {
  margin: 0 0 24px;
}

.page-news .media-frame {
  overflow: hidden;
}

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

.page-news .media-caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .col-feed-list {
  display: grid;
  gap: 18px;
}

.page-news .col-entry {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 18px;
  background: var(--paper);
  border: 1px solid var(--col-line);
  border-left: 2px solid var(--route);
  border-radius: var(--r-m);
  box-shadow: var(--shadow);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-news .col-entry:hover {
  transform: translateY(-3px);
  border-left-color: var(--amber);
}

.page-news .col-entry-kind {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--route);
  text-transform: uppercase;
}

.page-news .col-entry-title {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-news .col-entry-sum {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .col-entry-figure {
  margin: 4px 0 2px;
  border: 1px solid var(--col-line);
  border-radius: var(--r-s);
}

.page-news .col-entry-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--col-line);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-news .col-entry:hover .col-entry-meta {
  color: var(--ink-2);
}

/* ---------- 02 记录结构 ---------- */
.page-news .col-anatomy {
  margin-top: 4px;
}

.page-news .col-note {
  margin-top: 26px;
}

/* ---------- 03 专题合集 ---------- */
.page-news .col-digest-cover {
  margin: 0 0 28px;
}

.page-news .col-digest {
  display: grid;
  gap: 20px;
}

.page-news .col-topic {
  position: relative;
  overflow: hidden;
  padding: 26px 22px 28px;
  background: var(--paper);
  border: 1px solid var(--col-line);
  border-top: 3px solid var(--route);
  border-radius: var(--r-m);
  box-shadow: var(--shadow);
}

.page-news .col-topic-index {
  position: absolute;
  right: 10px;
  bottom: -18px;
  font-family: var(--mono);
  font-size: 84px;
  font-weight: 700;
  line-height: 1;
  color: rgba(46, 90, 143, .10);
  pointer-events: none;
  user-select: none;
}

.page-news .col-topic-kind {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--route);
}

.page-news .col-topic-title {
  margin: 12px 0 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .col-topic-sum {
  max-width: 34ch;
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .col-topic-list {
  margin: 16px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--col-line);
  display: grid;
  gap: 8px;
}

.page-news .col-topic-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-news .col-topic-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--amber);
}

/* ---------- 04 更新节奏 ---------- */
.page-news .col-rhythm {
  display: grid;
  gap: 32px;
  align-items: start;
}

.page-news .col-rhythm-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-news .col-rhythm-item {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--col-line-strong);
}

.page-news .col-rhythm-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--route);
}

.page-news .col-rhythm-item:first-child::before {
  background: var(--amber);
}

.page-news .col-rhythm-item h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .col-rhythm-item p {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--slate);
}

.page-news .col-rhythm-visual {
  margin: 0;
  border: 1px solid var(--col-line);
  border-radius: var(--r-m);
}

.page-news .col-route-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding: 20px 22px;
  background: var(--ink-2);
  border-radius: var(--r-m);
}

.page-news .col-route-text {
  margin: 0;
  font-size: 15px;
  color: rgba(232, 238, 247, .86);
}

.page-news .col-route-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.page-news .col-route-links .route-link {
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 135, 31, .55);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .col-route-links .route-link:hover,
.page-news .col-route-links .route-link:focus-visible {
  color: var(--amber-hi);
  border-bottom-color: var(--amber-hi);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .col-hero {
    padding: 60px 0 68px;
  }

  .page-news .col-sec {
    padding: 68px 0;
  }

  .page-news .col-feed-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-news .col-entry:nth-of-type(3n + 1) {
    grid-column: span 2;
  }

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

  .page-news .col-topic-sum {
    max-width: none;
  }
}

@media (min-width: 900px) {
  .page-news .col-hero-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .8fr);
    gap: 52px;
  }

  .page-news .col-hero-visual {
    margin: 0;
  }

  .page-news .col-feed {
    display: grid;
    grid-template-columns: 152px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-news .col-filters {
    position: sticky;
    top: 24px;
    display: block;
    overflow: visible;
    padding: 0;
    margin: 0;
  }

  .page-news .col-tab {
    width: 100%;
    padding: 12px 10px 12px 16px;
    text-align: left;
    background: none;
    border: 0;
    border-left: 2px solid var(--col-line-strong);
    border-radius: 0;
    letter-spacing: .14em;
  }

  .page-news .col-filter-input:checked + .col-tab {
    border-left-color: var(--amber);
    background: linear-gradient(90deg, rgba(240, 135, 31, .16), rgba(240, 135, 31, 0));
  }

  .page-news .col-rhythm {
    grid-template-columns: minmax(0, 1fr) minmax(0, .78fr);
    gap: 48px;
  }
}

@media (min-width: 1100px) {
  .page-news .col-feed {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .col-entry,
  .page-news .col-tab,
  .page-news .col-crumbs a,
  .page-news .col-route-links .route-link {
    transition: none;
  }
}