.page-news {
  --news-gap: var(--s3);
  --news-ink: var(--ink-1);
  background: var(--ink-1);
  color: var(--paper);
  font-family: var(--sans);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-news .wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--s3);
  box-sizing: border-box;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.page-news .news-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 27, 43, 0.84);
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding: calc(var(--s6) + var(--masthead-h)) 0 var(--s5);
}

.page-news .news-hero .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s1);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--mist);
  margin: 0 0 var(--s4);
}

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

.page-news .news-hero .crumbs a:hover,
.page-news .news-hero .crumbs a:focus-visible {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-hero__eyebrow {
  margin: 0 0 var(--s2);
  font-family: var(--mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.32em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-news .news-hero__title {
  margin: 0 0 var(--s3);
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--paper);
  max-width: 22ch;
}

.page-news .news-hero__lead {
  margin: 0 0 var(--s4);
  max-width: 40ch;
  font-size: var(--fs-md);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  align-items: center;
}

/* ---------- 章节通用 ---------- */

.page-news .chapter {
  padding: var(--s5) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .chapter__head {
  position: relative;
  display: grid;
  gap: var(--s2);
  margin-bottom: var(--s4);
  padding-left: var(--s3);
  border-left: 1px solid var(--line);
}

.page-news .chapter__num {
  font-family: var(--mono);
  font-size: var(--fs-xl);
  font-weight: 700;
  line-height: 1;
  color: var(--clay);
  letter-spacing: 0.02em;
}

.page-news .chapter__note {
  position: absolute;
  left: calc(-1 * var(--s3) - 1px);
  top: 0;
  writing-mode: vertical-rl;
  font-size: var(--fs-xs);
  letter-spacing: 0.32em;
  color: var(--cyan-soft);
  padding-top: var(--s1);
  border-top: 1px solid var(--cyan);
  display: none;
}

.page-news .chapter__title {
  margin: 0;
  font-size: clamp(1.375rem, 3.2vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .chapter__lead {
  margin: 0;
  max-width: 40ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .chapter__time {
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--rock);
}

@media (min-width: 900px) {
  .page-news .chapter {
    padding: var(--s6) 0;
  }
  .page-news .chapter__head {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "num  time"
      "title time"
      "lead time";
    align-items: start;
    gap: 0 var(--s4);
    padding-left: var(--s4);
    margin-bottom: var(--s5);
  }
  .page-news .chapter__num { grid-area: num; }
  .page-news .chapter__title { grid-area: title; margin-top: var(--s2); }
  .page-news .chapter__lead { grid-area: lead; margin-top: var(--s2); }
  .page-news .chapter__time { grid-area: time; align-self: end; }
  .page-news .chapter__note { display: block; left: calc(-1 * var(--s4) - 1px); }
}

/* ---------- 01 分类索引 ---------- */

.page-news .cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s2);
}

.page-news .cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  padding: var(--s3);
  background: var(--ink-2);
  border: 1px solid var(--line);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-news .cat-card:hover {
  border-color: var(--line-hot);
  transform: translateY(-2px);
}

.page-news .cat-card__media {
  margin: calc(-1 * var(--s3)) calc(-1 * var(--s3)) 0;
  overflow: hidden;
  background: var(--ink-0);
}

.page-news .cat-card__media img {
  display: block;
  width: 100%;
  height: 168px;
  object-fit: cover;
  object-position: center;
}

.page-news .cat-card__num {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--clay);
  letter-spacing: 0.04em;
  line-height: 1;
}

.page-news .cat-card .label-chip {
  align-self: flex-start;
}

.page-news .cat-card__title {
  margin: 0;
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .cat-card__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .cat-card__facts {
  margin: auto 0 0;
  padding-top: var(--s2);
  border-top: 1px solid var(--line);
  display: grid;
  gap: var(--s1);
}

.page-news .cat-card__facts > div {
  display: flex;
  justify-content: space-between;
  gap: var(--s2);
  align-items: baseline;
}

.page-news .cat-card__facts dt {
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--rock);
  flex: 0 0 auto;
}

.page-news .cat-card__facts dd {
  margin: 0;
  font-size: var(--fs-xs);
  color: var(--cyan-soft);
  text-align: right;
}

.page-news .cat-card--plain {
  background: var(--ink-1);
  border-style: dashed;
  border-color: var(--line-rock);
}

.page-news .cat-card--plain .label-chip {
  background: var(--rock);
  color: var(--paper);
}

@media (min-width: 640px) {
  .page-news .cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s3);
  }
}

@media (min-width: 1080px) {
  .page-news .cat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-news .cat-card__media img {
    height: 148px;
  }
}

/* ---------- 02 编辑推荐 ---------- */

.page-news .news-picks {
  background: var(--ink-0);
}

.page-news .pick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-news .pick {
  display: grid;
  gap: var(--s2);
  padding: var(--s3);
  background: var(--ink-0);
  position: relative;
  transition: background 200ms var(--ease);
}

.page-news .pick:hover {
  background: var(--ink-2);
}

.page-news .pick .label-chip {
  justify-self: start;
}

.page-news .pick__title {
  margin: 0;
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1.4;
}

.page-news .pick__title a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .pick__title a:hover,
.page-news .pick__title a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-news .pick__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--mist);
  max-width: 52ch;
}

.page-news .pick__time {
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--rock);
}

@media (min-width: 900px) {
  .page-news .pick-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .pick {
    padding: var(--s4);
    min-height: 100%;
    grid-template-rows: auto auto 1fr auto;
  }
}

/* ---------- 03 最新条目 ---------- */

.page-news .news-feed {
  background: var(--paper);
  color: var(--ink-0);
  border-bottom: 1px solid var(--line-rock);
}

.page-news .news-feed .chapter__title,
.page-news .news-feed .cat-card__title {
  color: var(--ink-0);
}

.page-news .news-feed .chapter__lead {
  color: var(--rock);
}

.page-news .news-feed .chapter__num {
  color: var(--clay);
}

.page-news .news-feed .chapter__head {
  border-left-color: rgba(5, 11, 18, 0.18);
}

.page-news .news-feed .chapter__note {
  color: var(--moss);
  border-top-color: var(--moss);
}

.page-news .news-feed .chapter__time {
  color: var(--rock);
}

.page-news .feed-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s4);
}

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

.page-news .entry {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas:
    "tag  time"
    "body body"
    "arrow arrow";
  align-items: center;
  gap: var(--s2) var(--s2);
  padding: var(--s3) 0;
  border-bottom: 1px solid rgba(5, 11, 18, 0.12);
  position: relative;
}

.page-news .entry .label-chip {
  grid-area: tag;
  justify-self: start;
}

.page-news .entry__body {
  grid-area: body;
}

.page-news .entry__title {
  margin: 0 0 var(--s1);
  font-size: var(--fs-md);
  font-weight: 700;
  line-height: 1.5;
}

.page-news .entry__title a {
  color: var(--ink-0);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-news .entry__title a:hover,
.page-news .entry__title a:focus-visible {
  color: var(--moss);
  border-bottom-color: var(--moss);
}

.page-news .entry__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--rock);
  max-width: 52ch;
}

.page-news .entry__time {
  grid-area: time;
  justify-self: end;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--rock);
  white-space: nowrap;
}

.page-news .entry__arrow {
  display: none;
  font-family: var(--mono);
  font-size: var(--fs-lg);
  line-height: 1;
  color: var(--cyan);
  opacity: 0;
  transition: opacity 160ms var(--ease);
  text-align: right;
}

.page-news .entry:hover {
  border-bottom-color: rgba(94, 122, 74, 0.5);
}

@media (min-width: 720px) {
  .page-news .entry {
    grid-template-columns: 104px minmax(0, 1fr) auto 32px;
    grid-template-areas: "tag .page-news time arrow";
    align-items: start;
    gap: var(--s3);
    padding: var(--s3) var(--s1);
  }
  .page-news .entry__arrow {
    display: block;
    align-self: center;
  }
  .page-news .entry:hover .entry__arrow {
    opacity: 1;
  }
}

.page-news .feed-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  margin-top: var(--s4);
  padding-top: var(--s3);
  border-top: 1px solid rgba(5, 11, 18, 0.14);
}

.page-news .feed-more__note {
  margin: 0;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-news .feed-more .btn--ghost {
  border-color: var(--moss);
  color: var(--moss);
}

.page-news .feed-more .btn--ghost:hover,
.page-news .feed-more .btn--ghost:focus-visible {
  background: var(--moss);
  color: var(--paper);
}

.page-news .feed-side {
  display: grid;
  gap: var(--s3);
  align-content: start;
}

.page-news .side-block {
  padding: var(--s3);
  background: rgba(5, 11, 18, 0.04);
  border: 1px solid rgba(5, 11, 18, 0.12);
}

.page-news .side-block__title {
  margin: 0 0 var(--s2);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink-0);
  padding-bottom: var(--s1);
  border-bottom: 1px solid var(--moss);
  display: inline-block;
}

.page-news .side-filter {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s1);
}

.page-news .side-filter__btn {
  appearance: none;
  background: transparent;
  border: 1px solid rgba(5, 11, 18, 0.2);
  color: var(--ink-0);
  font-family: var(--sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  padding: 6px 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-news .side-filter__btn:hover,
.page-news .side-filter__btn:focus-visible {
  border-color: var(--moss);
  color: var(--moss);
}

.page-news .side-filter__btn.is-active {
  background: var(--ink-0);
  border-color: var(--ink-0);
  color: var(--paper);
}

.page-news .tag-cloud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s1);
}

.page-news .tag {
  display: inline-block;
  padding: 5px 10px;
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--ink-0);
  background: rgba(94, 122, 74, 0.14);
  border-left: 2px solid var(--moss);
  text-decoration: none;
  transition: background 160ms var(--ease), color 160ms var(--ease);
}

.page-news .tag:hover,
.page-news .tag:focus-visible {
  background: var(--moss);
  color: var(--paper);
}

.page-news .side-block--note {
  border-left: 3px solid var(--clay);
  background: rgba(194, 112, 61, 0.08);
}

.page-news .side-block--note p {
  margin: 0;
  font-size: var(--fs-xs);
  line-height: 1.8;
  color: var(--ink-0);
}

@media (min-width: 900px) {
  .page-news .feed-layout {
    grid-template-columns: minmax(0, 1fr) 288px;
    gap: var(--s5);
    align-items: start;
  }
  .page-news .feed-side {
    position: sticky;
    top: calc(var(--masthead-h) + var(--s3));
  }
}

/* ---------- 04 更新节奏 ---------- */

.page-news .news-cadence {
  background: var(--ink-1);
}

.page-news .cadence-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s2);
}

.page-news .cadence-card {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  padding: var(--s3);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-news .cadence-card:hover {
  border-color: var(--line-hot);
  border-top-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .cadence-card__key {
  font-size: var(--fs-xs);
  letter-spacing: 0.24em;
  color: var(--cyan-soft);
}

.page-news .cadence-card__title {
  margin: 0;
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--paper);
}

.page-news .cadence-card__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .cadence-card__meta {
  margin: auto 0 0;
  padding-top: var(--s2);
  border-top: 1px solid var(--line);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-news .cadence-band {
  margin-top: var(--s3);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  padding: var(--s3);
  background: var(--ink-0);
  border: 1px solid var(--line);
}

.page-news .cadence-band .band__label {
  align-self: flex-start;
}

.page-news .cadence-band__main {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--s2);
}

.page-news .cadence-band__num {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.02em;
  line-height: 1;
}

.page-news .cadence-band__unit {
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-news .cadence-band__split {
  display: inline-block;
  width: 1px;
  height: 18px;
  background: var(--line-rock);
}

.page-news .cadence-band .band__meta {
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--rock);
}

@media (min-width: 780px) {
  .page-news .cadence-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s3);
  }
  .page-news .cadence-band {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--s4);
    padding: var(--s3) var(--s4);
  }
  .page-news .cadence-band .band__label {
    align-self: center;
  }
  .page-news .cadence-band__main {
    flex: 1 1 auto;
    justify-content: center;
  }
}

/* ---------- 05 纠错与选题 ---------- */

.page-news .news-fix {
  background: var(--paper);
  color: var(--ink-0);
}

.page-news .news-fix .chapter__title {
  color: var(--ink-0);
}

.page-news .news-fix .chapter__lead {
  color: var(--rock);
}

.page-news .news-fix .chapter__head {
  border-left-color: rgba(194, 112, 61, 0.5);
}

.page-news .news-fix .chapter__note {
  color: var(--clay);
  border-top-color: var(--clay);
}

.page-news .news-fix .chapter__num {
  color: var(--clay);
}

.page-news .fix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s2);
}

.page-news .fix-card {
  display: flex;
  flex-direction: column;
  gap: var(--s2);
  padding: var(--s3);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(5, 11, 18, 0.12);
  border-left: 3px solid var(--clay);
}

.page-news .fix-card__title {
  margin: 0;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--ink-0);
}

.page-news .fix-card__desc {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: var(--rock);
}

.page-news .fix-card__meta {
  margin: auto 0 0;
  padding-top: var(--s2);
  border-top: 1px solid rgba(5, 11, 18, 0.12);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--clay);
}

.page-news .fix-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-top: var(--s4);
  padding-top: var(--s3);
  border-top: 1px solid rgba(5, 11, 18, 0.14);
}

.page-news .fix-cta .btn--quiet {
  color: var(--ink-0);
  border-color: rgba(5, 11, 18, 0.24);
}

.page-news .fix-cta .btn--quiet:hover,
.page-news .fix-cta .btn--quiet:focus-visible {
  border-color: var(--ink-0);
  background: rgba(5, 11, 18, 0.06);
}

@media (min-width: 800px) {
  .page-news .fix-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s3);
  }
}

/* ---------- 焦点可见性 ---------- */

.page-news a:focus-visible,
.page-news button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-news .news-feed a:focus-visible,
.page-news .news-feed button:focus-visible,
.page-news .news-fix a:focus-visible {
  outline: 2px solid var(--moss);
  outline-offset: 2px;
}

/* ---------- 动效退化 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition: none !important;
    animation: none !important;
  }
  .page-news .cat-card:hover,
  .page-news .cadence-card:hover {
    transform: none;
  }
}
</main>