.page-news {
  --news-cut: 14px;
  --news-gap: clamp(16px, 2.4vw, 24px);
  background: var(--ink);
  color: var(--white);
}

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

.page-news .section__title {
  letter-spacing: -0.02em;
}

/* ---------- 01 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 3.6vw, 40px) clamp(34px, 5vw, 58px);
  background:
    radial-gradient(760px 420px at 88% -10%, rgba(25, 227, 214, 0.14), transparent 68%),
    radial-gradient(620px 380px at 4% 110%, rgba(122, 92, 255, 0.15), transparent 70%),
    var(--ink);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(138, 151, 184, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 151, 184, 0.055) 1px, transparent 1px);
  background-size: 74px 74px;
  pointer-events: none;
}

.page-news .news-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-news .news-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.2vw, 64px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.028em;
  max-width: 18ch;
}

.page-news .news-hero__lede {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

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

.page-news .news-hero__figure .figure__frame {
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: clamp(32px, 4.5vw, 58px);
  }
}

/* ---------- 最近更新轨道 ---------- */

.page-news .news-track {
  padding-block: clamp(34px, 4.6vw, 58px);
  background: var(--ink);
}

.page-news .news-track__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 22px;
}

.page-news .news-track__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-news .news-track__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-news .news-track__railwrap {
  overflow: hidden;
}

.page-news .news-rail {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 10px 2px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-news .news-rail::-webkit-scrollbar {
  height: 6px;
}

.page-news .news-rail::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-news .news-rail .rail__item {
  flex: 0 0 min(330px, 80vw);
  scroll-snap-align: start;
}

.page-news .news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 24px 22px 20px;
  background:
    linear-gradient(180deg, rgba(25, 227, 214, 0.06), transparent 42%),
    var(--panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
  transition: transform var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease);
}

.page-news .news-rail .rail__item:nth-child(even) {
  margin-top: 18px;
}

.page-news .news-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--gold));
  opacity: 0.85;
}

.page-news .news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25, 227, 214, 0.45);
}

.page-news .news-card .rail__index {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-news .news-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .news-card__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .news-card__title {
  margin: 0;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
}

.page-news .news-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .news-card__no {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

/* ---------- 02 四类标签 ---------- */

.page-news .news-topics {
  padding-block: clamp(42px, 5.4vw, 76px);
  background: var(--panel);
}

.page-news .news-topics__grid {
  display: grid;
  gap: var(--news-gap);
  margin-top: 34px;
}

.page-news .news-topic {
  position: relative;
  padding: 24px 22px;
  background: rgba(6, 11, 26, 0.62);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, 0 100%);
}

.page-news .news-topic--b { border-left-color: var(--violet); }
.page-news .news-topic--c { border-left-color: var(--gold); }
.page-news .news-topic--d { border-left-color: var(--glow); }

.page-news .news-topic__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-news .news-topic__title {
  margin: 10px 0 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.015em;
}

.page-news .news-topic__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-topic--media {
  display: grid;
  gap: 20px;
}

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

.page-news .news-topic__figure .figure__frame {
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

@media (min-width: 560px) {
  .page-news .news-topic--media {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 880px) {
  .page-news .news-topics__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .page-news .news-topic--a { grid-column: 1 / 8; }
  .page-news .news-topic--b { grid-column: 8 / 13; align-self: start; }
  .page-news .news-topic--c { grid-column: 1 / 6; align-self: start; }
  .page-news .news-topic--d { grid-column: 6 / 13; }
}

/* ---------- 03 条目流与筛选 ---------- */

.page-news .news-feed {
  padding-block: clamp(42px, 5.4vw, 76px);
  background: var(--ink);
}

.page-news .filter {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

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

.page-news .filter__label {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-news .filter__label:hover {
  color: var(--white);
  border-color: rgba(25, 227, 214, 0.5);
}

.page-news .filter__input:checked + .filter__label {
  color: var(--white);
  background: var(--violet);
  border-color: var(--violet);
}

.page-news .filter__input:focus-visible + .filter__label {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-news .feed {
  flex: 1 0 100%;
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .feed__item {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 22px 26px 22px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--t-mid) var(--ease);
}

.page-news .feed__item::after {
  content: "";
  position: absolute;
  top: 18%;
  bottom: 18%;
  right: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  transform: scaleY(0);
  transition: transform var(--t-mid) var(--ease);
}

.page-news .feed__item:hover::after {
  transform: scaleY(1);
}

.page-news .feed__item:hover {
  background: rgba(12, 22, 48, 0.72);
}

.page-news .feed__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-news .feed__body {
  min-width: 0;
}

.page-news .feed__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .feed__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .feed__title {
  margin: 10px 0 0;
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.012em;
}

.page-news .feed__text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news #nf-ver:checked ~ .feed .feed__item:not(.is-ver),
.page-news #nf-entry:checked ~ .feed .feed__item:not(.is-entry),
.page-news #nf-trace:checked ~ .feed .feed__item:not(.is-trace),
.page-news #nf-compat:checked ~ .feed .feed__item:not(.is-compat) {
  display: none;
}

@media (min-width: 860px) {
  .page-news .feed__item {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 0 28px;
    align-items: start;
  }

  .page-news .feed__no {
    padding-top: 4px;
  }
}

/* ---------- 04 条目结构 ---------- */

.page-news .news-schema {
  padding-block: clamp(42px, 5.4vw, 76px);
  background: var(--panel);
}

.page-news .news-schema__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-news .news-schema__intro {
  margin: 18px 0 0;
  max-width: var(--measure);
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-schema__list {
  margin: 28px 0 0;
  border-top: 1px solid var(--line);
}

.page-news .news-schema__row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .news-schema__key {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .news-schema__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-news .news-schema__figure .figure__frame {
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

@media (min-width: 620px) {
  .page-news .news-schema__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 0 24px;
    align-items: baseline;
  }
}

@media (min-width: 880px) {
  .page-news .news-schema__grid {
    grid-template-columns: 7fr 5fr;
  }
}

/* ---------- 05 翻旧条目 ---------- */

.page-news .news-archive {
  padding-block: clamp(42px, 5.4vw, 76px);
  background: var(--ink);
}

.page-news .news-archive__grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

.page-news .news-archive__card .panel__body {
  padding: 26px 24px 24px;
}

.page-news .news-archive__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-news .news-archive__title {
  margin: 10px 0 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.015em;
}

.page-news .news-archive__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-archive__link {
  display: inline-block;
  margin-top: 18px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 227, 214, 0.4);
  padding-bottom: 2px;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-news .news-archive__link:hover {
  color: var(--glow);
  border-color: var(--glow);
}

.page-news .news-archive__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(30px, 4vw, 48px);
  padding: 24px 24px;
  background: linear-gradient(90deg, rgba(25, 227, 214, 0.1), rgba(122, 92, 255, 0.1));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-news .news-archive__cta-text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--white);
}

.page-news .news-archive__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 800px) {
  .page-news .news-archive__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .page-news .news-archive__card--a {
    grid-column: 1 / 7;
  }

  .page-news .news-archive__card--b {
    grid-column: 7 / 13;
    margin-top: 32px;
  }
}