.page-news {
  --news-rail-w: 236px;
  --news-gap: 32px;
  color: var(--fog-100);
  background: var(--ink-900);
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
}
.page-news .news-crumb a {
  color: var(--steel-500);
  text-decoration: none;
  transition: color .2s var(--ease);
}
.page-news .news-crumb a:hover {
  color: var(--cyan-400);
}
.page-news .news-crumb .breadcrumb__sep {
  color: var(--grid-300);
}
.page-news .news-crumb [aria-current="page"] {
  color: var(--fog-100);
}

/* ---------- 首屏 ---------- */
.page-news .news-intro {
  padding: 26px 0 8px;
}
.page-news .news-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}
.page-news .news-intro__lead {
  border-left: 2px solid var(--cyan-600);
  padding-left: 18px;
}
.page-news .news-intro__lead h1 {
  margin: 14px 0 0;
  font-size: var(--fs-40);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--fog-100);
}
.page-news .news-intro__text {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--steel-500);
}
.page-news .news-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 首屏侧栏：按情况找入口 */
.page-news .news-nav {
  padding: 20px;
}
.page-news .news-nav__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--gold-400);
}
.page-news .news-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-news .news-nav__list a {
  display: grid;
  gap: 3px;
  padding: 12px 10px 12px 12px;
  border-left: 2px solid var(--grid-300);
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}
.page-news .news-nav__list a:hover {
  border-left-color: var(--gold-400);
  background: rgba(242, 183, 80, .06);
}
.page-news .news-nav__q {
  font-size: var(--fs-17);
  line-height: 1.5;
  color: var(--fog-100);
}
.page-news .news-nav__a {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
}

/* ---------- 主阅读区骨架 ---------- */
.page-news .news-stream {
  padding: 44px 0 0;
}
.page-news .news-stream__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: 36px;
}

/* ---------- 左侧索引与筛选 ---------- */
.page-news .news-rail {
  display: block;
}
.page-news .news-rail__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  letter-spacing: .08em;
  color: var(--steel-500);
}
.page-news .news-filters {
  position: relative;
  display: grid;
  border-top: 1px solid var(--grid-300);
}
.page-news .news-filters__input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}
.page-news .news-filter {
  display: block;
  padding: 11px 4px 11px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
  border-bottom: 1px solid var(--grid-300);
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.page-news .news-filter:hover {
  color: var(--fog-100);
  border-left-color: var(--grid-300);
}
.page-news .news-filters__input:checked + .news-filter {
  color: var(--fog-100);
  border-left-color: var(--cyan-400);
  box-shadow: inset 0 -2px 0 var(--cyan-400);
}
.page-news .news-filters__input:focus-visible + .news-filter {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}
.page-news .news-rail__note {
  margin: 16px 0 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--steel-500);
}
.page-news .news-rail__link {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}
.page-news .news-rail__link:hover {
  border-bottom-color: var(--cyan-400);
}

/* ---------- 最近三条 ---------- */
.page-news .news-pin__head {
  display: grid;
  gap: 8px;
  margin-bottom: 22px;
}
.page-news .news-pin__lead {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.7;
  color: var(--steel-500);
}
.page-news .news-pin__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-news .news-pin__item {
  position: relative;
  padding: 18px 18px 18px 20px;
  background: var(--ink-800);
  border: 1px solid var(--grid-300);
  border-radius: var(--radius);
  border-left: 2px solid var(--cyan-600);
  transition: border-left-color .2s var(--ease), background-color .2s var(--ease);
}
.page-news .news-pin__item:hover {
  border-left-color: var(--cyan-400);
  background: var(--ink-700);
}
.page-news .news-pin__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.page-news .news-pin__time {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
}
.page-news .news-pin__title {
  margin: 0;
  font-size: var(--fs-20);
  line-height: 1.5;
  font-weight: 700;
  color: var(--fog-100);
}
.page-news .news-pin__scope {
  margin: 8px 0 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--steel-500);
}

/* 分类徽标 */
.page-news .news-cat {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  line-height: 1.45;
  letter-spacing: .02em;
  white-space: nowrap;
  border: 1px solid var(--grid-300);
  border-radius: var(--radius);
  color: var(--steel-500);
  background: transparent;
}
.page-news .news-cat--open {
  color: var(--cyan-400);
  border-color: rgba(47, 224, 214, .45);
}
.page-news .news-cat--login {
  color: var(--gold-400);
  border-color: rgba(242, 183, 80, .45);
}
.page-news .news-cat--device {
  color: var(--fog-100);
  border-color: var(--grid-300);
}
.page-news .news-cat--ux {
  color: var(--steel-500);
  border-color: var(--grid-300);
}

/* ---------- 兼容专题色带 ---------- */
.page-news .news-feature {
  padding: clamp(18px, 3vw, 36px);
  border: 1px solid var(--grid-300);
  border-radius: var(--radius);
  background:
    linear-gradient(104deg, #0D3B47 0%, #0B2433 46%, var(--ink-800) 100%);
}
.page-news .news-feature__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}
.page-news .news-feature__media {
  margin: 0;
}
.page-news .news-feature__body h2 {
  margin: 12px 0 0;
}
.page-news .news-feature__text {
  margin: 14px 0 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--fog-100);
  max-width: 40em;
}
.page-news .news-feature__log {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-news .news-feature__log li {
  display: grid;
  gap: 4px;
  padding: 10px 0;
  border-top: 1px solid rgba(124, 147, 168, .22);
}
.page-news .news-feature__verse {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--gold-400);
}
.page-news .news-feature__desc {
  font-size: var(--fs-17);
  line-height: 1.7;
  color: var(--fog-100);
}
.page-news .news-feature__body .btn {
  margin-top: 22px;
}

/* ---------- 季度回归说明 ---------- */
.page-news .news-coverage {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding: clamp(18px, 3vw, 32px);
  border: 1px solid var(--grid-300);
  border-radius: var(--radius);
  background: var(--ink-800);
}
.page-news .news-coverage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-300) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-300) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: .35;
  pointer-events: none;
}
.page-news .news-coverage__media,
.page-news .news-coverage__text {
  position: relative;
  z-index: 1;
}
.page-news .news-coverage__media {
  margin: 0;
}
.page-news .news-coverage__text h3 {
  margin: 0;
  font-size: var(--fs-28);
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog-100);
}
.page-news .news-coverage__text p {
  margin: 12px 0 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--steel-500);
  max-width: 40em;
}

/* ---------- 条目分组 ---------- */
.page-news .news-groups > .section-title {
  margin: 0 0 24px;
}
.page-news .news-group + .news-group {
  margin-top: 40px;
}
.page-news .news-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 4px;
  padding-bottom: 12px;
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--fog-100);
  border-bottom: 1px solid var(--grid-300);
}
.page-news .news-group__index {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 500;
  color: var(--gold-400);
}
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-news .news-list > li {
  border-bottom: 1px solid var(--grid-300);
}
.page-news .news-item {
  display: block;
}
.page-news .news-item__summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 10px 4px 10px 2px;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s var(--ease);
}
.page-news .news-item__summary::-webkit-details-marker {
  display: none;
}
.page-news .news-item__summary:hover {
  background: rgba(47, 224, 214, .05);
}
.page-news .news-item__title {
  font-size: var(--fs-17);
  line-height: 1.5;
  color: var(--fog-100);
}
.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
  white-space: nowrap;
}
.page-news .news-item__summary::after {
  content: "展开";
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
  white-space: nowrap;
  transition: color .2s var(--ease);
}
.page-news .news-item[open] .news-item__summary::after {
  content: "收起";
  color: var(--cyan-400);
}
.page-news .news-item[open] .news-item__summary {
  border-bottom: 1px dashed var(--grid-300);
}
.page-news .news-item__body {
  display: grid;
  gap: 10px;
  padding: 16px 4px 22px 2px;
}
.page-news .news-item__body p {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--steel-500);
}
.page-news .news-item__key {
  display: inline-block;
  min-width: 5.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--gold-400);
}

/* 分类筛选：仅保留所选主题 */
.page-news:has(#nf-open:checked) .news-group:not([data-cat="open"]),
.page-news:has(#nf-login:checked) .news-group:not([data-cat="login"]),
.page-news:has(#nf-device:checked) .news-group:not([data-cat="device"]),
.page-news:has(#nf-ux:checked) .news-group:not([data-cat="ux"]) {
  display: none;
}

/* ---------- 公告写法 ---------- */
.page-news .news-anatomy {
  padding: 64px 0 0;
}
.page-news .news-anatomy .section-title {
  margin: 12px 0 26px;
}
.page-news .news-anatomy__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  border-top: 1px solid var(--grid-300);
}
.page-news .news-anatomy__item {
  padding: 22px 0;
  border-bottom: 1px solid var(--grid-300);
}
.page-news .news-anatomy__item h3 {
  margin: 10px 0 8px;
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--fog-100);
}
.page-news .news-anatomy__item p {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--steel-500);
  max-width: 30em;
}

/* ---------- 发布节奏 ---------- */
.page-news .news-remind {
  margin-top: 64px;
  padding: 56px 0 72px;
  background: var(--ink-800);
  border-top: 1px solid var(--grid-300);
  border-bottom: 1px solid var(--grid-300);
}
.page-news .news-remind__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
.page-news .news-remind__text h2 {
  margin: 12px 0 0;
}
.page-news .news-remind__lead {
  margin: 16px 0 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--steel-500);
  max-width: 34em;
}
.page-news .news-remind__facts {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}
.page-news .news-remind__facts li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 9px 0;
  border-top: 1px solid var(--grid-300);
  font-size: var(--fs-17);
  color: var(--fog-100);
}
.page-news .news-remind__facts .meta-key {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--steel-500);
  min-width: 6em;
}
.page-news .news-remind__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 26px;
}
.page-news .news-remind__link {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--gold-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}
.page-news .news-remind__link:hover {
  border-bottom-color: var(--gold-400);
}
.page-news .news-remind__media {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 599px) {
  .page-news .news-item__summary {
    grid-template-columns: minmax(0, 1fr) auto;
    row-gap: 4px;
  }
  .page-news .news-item__time {
    grid-column: 2;
    grid-row: 1;
  }
  .page-news .news-item__summary::after {
    grid-column: 2;
    grid-row: 2;
    justify-self: end;
  }
}

@media (min-width: 720px) {
  .page-news .news-anatomy__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 28px;
  }
  .page-news .news-anatomy__item {
    border-bottom: 0;
  }
  .page-news .news-coverage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 28px;
    align-items: center;
  }
  .page-news .news-remind__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 48px;
  }
}

@media (min-width: 900px) {
  .page-news .news-intro {
    padding: 34px 0 12px;
  }
  .page-news .news-intro__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }
  .page-news .news-stream {
    padding: 56px 0 0;
  }
  .page-news .news-stream__grid {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    column-gap: 56px;
    row-gap: 48px;
  }
  .page-news .news-rail {
    grid-column: 1;
    grid-row: 1;
    align-self: start;
    position: sticky;
    top: calc(var(--navbar-h) + 24px);
  }
  .page-news .news-pin {
    grid-column: 2;
    grid-row: 1;
  }
  .page-news .news-feature {
    grid-column: 1 / -1;
    grid-row: 2;
  }
  .page-news .news-feature__grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 40px;
    align-items: center;
  }
  .page-news .news-coverage {
    grid-column: 1 / -1;
    grid-row: 3;
  }
  .page-news .news-groups {
    grid-column: 2;
    grid-row: 4;
  }
  .page-news .news-pin__list {
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition: none !important;
    animation: none !important;
  }
}
</section>
</main>