.page-news {
  --news-line: rgba(41, 66, 74, 0.16);
  --news-line-ink: rgba(199, 211, 209, 0.2);
  --news-hover: rgba(199, 211, 209, 0.34);
  background: var(--c-paper);
  color: var(--c-graphite);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  background: var(--c-ink);
  color: var(--c-paper);
  padding: clamp(24px, 4vw, 46px) 0 0;
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(77, 240, 169, 0.07) 0 1px,
    transparent 1px 74px
  );
  pointer-events: none;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 7.4vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  max-width: 16ch;
}

.page-news .news-hero__lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.8;
  color: var(--c-mist);
}

.page-news .news-hero__media {
  position: relative;
  margin: clamp(22px, 4vw, 42px) 0 0;
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.page-news .news-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 27, 30, 0.75), rgba(11, 27, 30, 0.04) 58%);
  pointer-events: none;
}

/* ---------- 数字带 ---------- */
.page-news .news-stats {
  position: relative;
  z-index: 1;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--news-line-ink);
  border-top: 1px solid var(--news-line-ink);
}

.page-news .news-stats__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 16px clamp(12px, 2vw, 22px) 18px;
  background: var(--c-ink);
}

.page-news .news-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 600;
  color: var(--c-data);
  line-height: 1;
}

.page-news .news-stats__label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-mist);
  line-height: 1.4;
}

/* ---------- 栏目与条目流 ---------- */
.page-news .news-index {
  padding: clamp(38px, 7vw, 74px) 0 clamp(34px, 5vw, 60px);
}

.page-news .news-index__head {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-news .news-index__note {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(27, 42, 45, 0.78);
}

.page-news .news-index__media {
  margin: 0;
}

.page-news .news-index__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 栏目标签 ---------- */
.page-news .news-filter {
  margin-top: clamp(24px, 3.5vw, 36px);
  border-top: 1px solid var(--news-line);
}

.page-news .news-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 2px;
  padding: 12px 0;
}

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

.page-news .news-filter__tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-graphite);
  border-left: 2px solid var(--c-mist);
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background-color 0.2s var(--ease);
}

.page-news .news-filter__tab:hover {
  border-left-color: var(--c-signal-hi);
  background: var(--news-hover);
}

.page-news .news-filter__input:checked + .news-filter__tab {
  border-left-color: var(--c-signal);
  color: var(--c-ink);
  background: rgba(255, 106, 43, 0.09);
}

.page-news .news-filter__input:focus-visible + .news-filter__tab {
  outline: 2px solid var(--c-signal);
  outline-offset: 2px;
}

.page-news .news-filter__n {
  font-size: 11px;
  color: var(--c-signal-deep);
}

/* ---------- 条目行 ---------- */
.page-news .feed {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  border-top: 1px solid var(--news-line);
}

.page-news .feed__item {
  display: grid;
  gap: 12px;
  padding: 20px 10px 20px 14px;
  border-bottom: 1px solid var(--news-line);
  border-left: 2px solid transparent;
  transition: background-color 0.22s var(--ease), border-left-color 0.22s var(--ease);
}

.page-news .feed__item:hover {
  background: var(--news-hover);
  border-left-color: var(--c-signal);
}

.page-news .feed__cat {
  position: relative;
  display: inline-block;
  padding-left: 20px;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-signal-deep);
}

.page-news .feed__cat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--c-signal);
  transform: translateY(-50%);
}

.page-news .feed__title {
  margin: 0;
  font-size: clamp(1.02rem, 1.9vw, 1.24rem);
  line-height: 1.5;
  font-weight: 600;
  color: var(--c-ink);
}

.page-news .feed__lead {
  margin: 8px 0 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(27, 42, 45, 0.76);
}

.page-news .feed__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
}

.page-news .feed__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-water);
}

.page-news .feed__read {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(27, 42, 45, 0.55);
  opacity: 0.65;
  transition: opacity 0.2s var(--ease);
}

.page-news .feed__item:hover .feed__read {
  opacity: 1;
}

/* 静态筛选：只在支持 :has() 的环境生效，其余情况完整呈现 */
.page-news:has(#cat-version:checked) .feed__item:not([data-cat~="version"]),
.page-news:has(#cat-window:checked) .feed__item:not([data-cat~="window"]),
.page-news:has(#cat-observe:checked) .feed__item:not([data-cat~="observe"]),
.page-news:has(#cat-notes:checked) .feed__item:not([data-cat~="notes"]) {
  display: none;
}

/* ---------- 专题系列 ---------- */
.page-news .special {
  padding: clamp(44px, 7vw, 82px) 0;
}

.page-news .special__figure {
  position: relative;
  margin: clamp(22px, 3.5vw, 34px) 0 0;
}

.page-news .special__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-news .special__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: clamp(16px, 3vw, 36px);
  background: linear-gradient(
    to top,
    rgba(11, 27, 30, 0.94),
    rgba(11, 27, 30, 0.55) 58%,
    rgba(11, 27, 30, 0)
  );
}

.page-news .special__kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-data);
}

.page-news .special__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.2vw, 2.8rem);
  line-height: 1.12;
  font-weight: 700;
  color: var(--c-paper);
  max-width: 20ch;
}

.page-news .special__note {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-news .special__rail {
  display: flex;
  gap: 18px;
  margin-top: clamp(22px, 3.5vw, 34px);
  padding-bottom: 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-news .special__card {
  flex: 0 0 min(80%, 300px);
  scroll-snap-align: start;
  padding-top: 14px;
  border-top: 2px solid var(--c-data);
}

.page-news .special__card-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-data);
}

.page-news .special__card-title {
  margin: 10px 0 0;
  font-size: 1rem;
  line-height: 1.55;
  font-weight: 600;
  color: var(--c-paper);
}

.page-news .special__card-note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 订阅 ---------- */
.page-news .subscribe {
  padding: clamp(44px, 7vw, 84px) 0;
  background: var(--c-paper);
}

.page-news .subscribe__grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-news .subscribe__media {
  margin: 0;
}

.page-news .subscribe__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-news .subscribe__note {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(27, 42, 45, 0.78);
}

.page-news .subscribe__steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-news .subscribe__step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--news-line);
}

.page-news .subscribe__step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-signal-deep);
  padding-top: 3px;
}

.page-news .subscribe__step-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink);
}

.page-news .subscribe__step-note {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(27, 42, 45, 0.76);
}

.page-news .subscribe__contact {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-graphite);
}

.page-news .subscribe__contact a {
  color: var(--c-signal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-news .subscribe__aside {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(27, 42, 45, 0.68);
}

.page-news .subscribe__aside a {
  color: var(--c-signal-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news .news-stats__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (min-width: 880px) {
  .page-news .news-index__head {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
  }

  .page-news .special__card {
    flex-basis: 31%;
  }
}

@media (min-width: 900px) {
  .page-news .feed__item {
    grid-template-columns: minmax(0, 1fr) 210px;
    gap: 0 clamp(20px, 3vw, 40px);
    padding: 26px 16px 26px 18px;
  }

  .page-news .feed__meta {
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    gap: 8px;
    padding-top: 4px;
  }

  .page-news .subscribe__grid {
    grid-template-columns: 300px minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-news .subscribe__grid {
    grid-template-columns: 360px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .feed__item,
  .page-news .feed__read,
  .page-news .news-filter__tab {
    transition: none;
  }
}