.page-news {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 24px var(--pad) 96px;
  color: var(--text-md);
  font-family: var(--f-sans);
  font-size: 17px;
  line-height: 1.8;
}

.page-news a {
  color: var(--cyan-400);
  text-decoration: none;
}

.page-news a:hover,
.page-news a:focus-visible {
  color: var(--orange-500);
}

.page-news .mono {
  font-family: var(--f-mono);
  letter-spacing: 0.02em;
}

.page-news .breadcrumb {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.page-news .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--text-lo);
}

.page-news .breadcrumb__item a {
  color: var(--text-lo);
}

.page-news .breadcrumb__item a:hover {
  color: var(--orange-500);
}

.page-news .breadcrumb__item [aria-current="page"] {
  color: var(--lemon-300);
}

/* ---------- 栏目头 ---------- */
.news-head {
  display: grid;
  gap: 28px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--hairline);
}

.news-head__eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  color: var(--cyan-400);
}

.news-head__title {
  margin: 0;
  font-size: clamp(32px, 7vw, 64px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text-hi);
}

.news-head__lead {
  max-width: 58ch;
  margin: 18px 0 0;
  color: var(--text-md);
}

.news-head__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--hairline);
}

.news-fact {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  border-right: 1px solid var(--hairline);
}

.news-fact:last-child {
  border-right: 0;
}

.news-fact__no {
  font-size: 17px;
  color: var(--lemon-300);
}

.news-fact__label {
  font-size: 12px;
  color: var(--text-lo);
}

.news-fact--alt .news-fact__no {
  color: var(--mint-400);
}

.news-head__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-left: 1px solid var(--cyan-400);
}

.news-head__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 主体三栏 ---------- */
.news-body {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.filter-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* 分类轴 */
.cat-axis {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  overflow-x: auto;
  border: 1px solid var(--hairline);
  background: var(--ink-800);
  scroll-snap-type: x proximity;
}

.cat-axis__head,
.cat-axis__foot {
  display: none;
  margin: 0;
  padding: 14px 16px;
  font-size: 11px;
  color: var(--text-lo);
  border-bottom: 1px solid var(--hairline);
}

.cat-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  white-space: nowrap;
  border-right: 1px solid var(--hairline-soft);
  cursor: pointer;
  color: var(--text-md);
  font-size: 14px;
  transition: background var(--ease), color var(--ease);
  scroll-snap-align: start;
}

.cat-tag:last-of-type {
  border-right: 0;
}

.cat-tag__no {
  font-size: 11px;
  color: var(--text-lo);
  transition: color var(--ease);
}

.cat-tag:hover {
  background: rgba(255, 106, 26, 0.12);
  color: var(--text-hi);
}

.cat-tag:hover .cat-tag__no {
  color: var(--orange-500);
}

#f-all:checked ~ .cat-axis label[for="f-all"],
#f-version:checked ~ .cat-axis label[for="f-version"],
#f-index:checked ~ .cat-axis label[for="f-index"],
#f-tips:checked ~ .cat-axis label[for="f-tips"],
#f-series:checked ~ .cat-axis label[for="f-series"] {
  background: var(--orange-500);
  color: var(--ink-950);
}

#f-all:checked ~ .cat-axis label[for="f-all"] .cat-tag__no,
#f-version:checked ~ .cat-axis label[for="f-version"] .cat-tag__no,
#f-index:checked ~ .cat-axis label[for="f-index"] .cat-tag__no,
#f-tips:checked ~ .cat-axis label[for="f-tips"] .cat-tag__no,
#f-series:checked ~ .cat-axis label[for="f-series"] .cat-tag__no {
  color: var(--ink-800);
}

/* 纯 CSS 过滤 */
#f-version:checked ~ .news-stream [data-cat]:not([data-cat="version"]),
#f-index:checked ~ .news-stream [data-cat]:not([data-cat="index"]),
#f-tips:checked ~ .news-stream [data-cat]:not([data-cat="tips"]),
#f-series:checked ~ .news-stream [data-cat]:not([data-cat="series"]) {
  display: none;
}

/* ---------- 条目流 ---------- */
.news-stream {
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-width: 0;
}

.entry--major {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--hairline);
  background: var(--ink-800);
}

.entry__body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px 22px;
}

.entry__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  font-size: 12px;
}

.entry__cat {
  padding: 2px 8px;
  background: var(--orange-500);
  color: var(--ink-950);
  font-weight: 700;
}

.entry--text .entry__cat {
  background: var(--cyan-400);
}

.entry__time {
  color: var(--text-lo);
}

.entry__title {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-hi);
}

.entry__title::after {
  content: "";
  display: block;
  width: 0;
  height: 1px;
  margin-top: 6px;
  background: var(--orange-500);
  transition: width var(--ease);
}

.entry--major:hover .entry__title::after,
.entry--major:focus-within .entry__title::after {
  width: 64px;
}

.entry__excerpt {
  margin: 0;
  max-width: 62ch;
  color: var(--text-md);
}

.entry__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tag-pill {
  padding: 3px 10px;
  border: 1px solid var(--hairline);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  color: var(--text-lo);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.tag-pill--orange {
  border-color: var(--orange-500);
  color: var(--orange-500);
}

.entry--major:hover .tag-pill {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
  background: rgba(20, 210, 200, 0.08);
}

.entry--major:hover .tag-pill--orange {
  border-color: var(--orange-500);
  color: var(--ink-950);
  background: var(--orange-500);
}

.entry__link {
  align-self: flex-start;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
  font-size: 14px;
}

.entry__media {
  margin: 0;
  overflow: hidden;
  border-top: 1px solid var(--hairline);
}

.entry__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  max-width: 100%;
  object-fit: cover;
}

.entry__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hairline-soft);
}

.step-node {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline-soft);
}

.step-node__no {
  font-size: 12px;
  color: var(--lemon-300);
}

.step-node__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-md);
}

/* 紧凑行式列表 */
.entry-rows {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
}

.entry-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 6px 12px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline-soft);
  transition: background var(--ease);
}

.entry-row:hover {
  background: rgba(20, 210, 200, 0.06);
}

.entry-row__no {
  font-size: 12px;
  color: var(--lemon-300);
}

.entry-row__title {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text-hi);
}

.entry-rows .entry-row__title {
  color: var(--text-hi);
}

a.entry-row__title:hover {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.entry-row__meta {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 11px;
  color: var(--text-lo);
}

.entry-row__cat {
  padding: 1px 7px;
  border: 1px solid var(--hairline);
  font-family: var(--f-mono);
  letter-spacing: 0.02em;
  transition: border-color var(--ease), color var(--ease);
}

.entry-row:hover .entry-row__cat {
  border-color: var(--orange-500);
  color: var(--orange-200);
}

.entry-rows--dim .entry-row {
  opacity: 0.86;
}

.stream-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.stream-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* 折叠更多 */
.more-block {
  border: 1px solid var(--hairline);
  background: var(--ink-950);
}

.more-block__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  color: var(--text-hi);
  font-size: 15px;
  transition: background var(--ease);
}

.more-block__summary::-webkit-details-marker {
  display: none;
}

.more-block__summary:hover {
  background: var(--ink-800);
}

.more-block__count {
  font-size: 11px;
  color: var(--lemon-300);
}

.more-block[open] .more-block__summary {
  border-bottom: 1px solid var(--hairline);
}

.more-block .entry-rows {
  margin: 0;
  padding: 0 20px;
  border-top: 0;
}

/* ---------- 右侧栏 ---------- */
.news-aside {
  display: flex;
  flex-direction: column;
  gap: 28px;
  min-width: 0;
}

.series__title,
.cadence__title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-hi);
}

.series__title::before,
.cadence__title::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  background: var(--orange-500);
  vertical-align: middle;
}

.series-card {
  position: relative;
  margin-bottom: 12px;
  padding: 16px 16px 14px;
  border: 1px solid var(--cyan-400);
  background: var(--ink-800);
  transition: border-color var(--ease), background var(--ease);
}

.series-card:hover {
  background: var(--ink-950);
  border-color: var(--violet-600);
}

.series-card__tag {
  margin: 0 0 8px;
  font-size: 11px;
  color: var(--violet-600);
}

.series-card:hover .series-card__tag {
  color: var(--cyan-400);
}

.series-card__name {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-hi);
}

.series-card__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-md);
}

.series-card__meta {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--mint-400);
}

.series-card__next {
  max-height: 0;
  margin: 0;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-md);
  opacity: 0;
  transition: max-height var(--ease), opacity var(--ease), margin var(--ease);
}

.series-card:hover .series-card__next,
.series-card:focus-within .series-card__next {
  max-height: 90px;
  margin-top: 8px;
  opacity: 1;
}

.series-figure {
  margin: 8px 0 0;
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.series-figure img {
  display: block;
  width: 100%;
  height: 120px;
  max-width: 100%;
  object-fit: cover;
}

.cadence {
  padding: 18px 16px;
  border: 1px solid var(--hairline);
  background: var(--ink-800);
  border-left: 3px solid var(--orange-500);
}

.cadence__list {
  margin: 0;
  padding: 0;
}

.cadence__item {
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline-soft);
}

.cadence__item:last-child {
  border-bottom: 0;
}

.cadence__key {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--lemon-300);
}

.cadence__val {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-md);
}

.cadence__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-lo);
}

.cadence__link {
  margin-top: 14px;
  display: inline-block;
  font-size: 13px;
}

/* 返回顶部 */
.to-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 20;
  padding: 8px 12px;
  border: 1px solid var(--cyan-400);
  background: var(--ink-950);
  font-size: 11px;
  color: var(--cyan-400);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.to-top:hover,
.to-top:focus-visible {
  background: var(--orange-500);
  border-color: var(--orange-500);
  color: var(--ink-950);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .entry-row {
    grid-template-columns: 44px minmax(0, 1fr) auto;
  }

  .entry-row__meta {
    grid-column: 3;
    justify-content: flex-end;
    text-align: right;
  }
}

@media (min-width: 760px) {
  .page-news {
    gap: 56px;
  }

  .news-head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: end;
    gap: 44px;
  }

  .news-body {
    grid-template-columns: 152px minmax(0, 1fr);
    gap: 32px;
  }

  .cat-axis {
    flex-direction: column;
    overflow: visible;
    align-self: start;
    position: sticky;
    top: 120px;
    scroll-snap-type: none;
  }

  .cat-axis__head,
  .cat-axis__foot {
    display: block;
  }

  .cat-tag {
    border-right: 0;
    border-bottom: 1px solid var(--hairline-soft);
    justify-content: flex-start;
  }

  .cat-tag:last-of-type {
    border-bottom: 0;
  }

  .entry--major {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  }

  .entry__media {
    border-top: 0;
    border-left: 1px solid var(--hairline);
  }
}

@media (min-width: 1080px) {
  .news-body {
    grid-template-columns: 168px minmax(0, 1fr) 300px;
    gap: 36px;
  }

  .entry__body {
    padding: 32px 28px;
  }

  .to-top {
    right: 32px;
    bottom: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: 0.01ms !important;
  }
}