.page-news {
  --cat-version: var(--gold);
  --cat-tag: var(--mint);
  --cat-rule: var(--cobalt);
  --cat-design: var(--coral);
  --cat-guide: var(--slate);
  --ring: var(--ink-0);
  background: var(--ink-0);
  color: var(--mist);
  overflow-x: clip;
}

.page-news [id] {
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  padding: calc(var(--header-h) + 2.2rem) 0 clamp(2rem, 5vw, 3.4rem);
  overflow: hidden;
  background:
    radial-gradient(120% 85% at 6% -12%, rgba(43, 75, 216, 0.55) 0%, transparent 58%),
    radial-gradient(70% 60% at 94% 4%, rgba(63, 214, 176, 0.16) 0%, transparent 62%),
    var(--ink-0);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: -12%;
  right: -12%;
  bottom: -46%;
  height: 62%;
  background: var(--ink-1);
  transform: skewY(var(--skew));
  transform-origin: left top;
  opacity: 0.55;
  pointer-events: none;
}

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

.page-news .news-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--slate);
  margin-bottom: 1.9rem;
}

.page-news .news-hero .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline-strong);
}

.page-news .news-hero .breadcrumb a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-news .news-eyebrow {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-news .news-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.4vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1.1rem;
  max-width: 15ch;
  color: var(--paper);
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-news .news-hero__media {
  position: relative;
  z-index: 1;
  margin-top: clamp(1.9rem, 4.5vw, 3rem);
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 560;
  object-fit: cover;
  background: var(--ink-1);
  clip-path: var(--cut);
}

/* ---------- 通用章节骨架 ---------- */

.page-news .news-section {
  position: relative;
  padding: clamp(2.6rem, 6vw, 4.6rem) 0;
}

.page-news .news-section--ink {
  background: var(--ink-0);
  color: var(--mist);
}

.page-news .news-section--light {
  --hairline: rgba(10, 15, 44, 0.14);
  --hairline-strong: rgba(10, 15, 44, 0.3);
  --slate: #5a6288;
  --ring: var(--mist);
  background: var(--mist);
  color: var(--ink-0);
}

.page-news .news-head {
  margin-bottom: clamp(1.6rem, 3.5vw, 2.4rem);
}

.page-news .news-section--light .news-eyebrow {
  color: var(--mint-deep);
}

.page-news .news-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.8rem;
}

.page-news .news-sub {
  margin: 0;
  max-width: 52ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 01 索引筛选条 ---------- */

.page-news .news-chips {
  display: flex;
  gap: 0.55rem;
  margin: 0;
  padding: 0.15rem 0 0.85rem;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .news-chips::-webkit-scrollbar {
  height: 4px;
}

.page-news .news-chips::-webkit-scrollbar-thumb {
  background: var(--hairline-strong);
  border-radius: 2px;
}

.page-news .news-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 0.45rem 1.05rem;
  border: 1px solid var(--hairline-strong);
  border-radius: 999px;
  background: transparent;
  color: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.page-news .news-chip:hover,
.page-news .news-chip:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.page-news .news-chip--all {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-0);
}

.page-news .news-chip--all:hover,
.page-news .news-chip--all:focus-visible {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--paper);
}

.page-news .news-chip__n {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 400;
  padding: 0.06rem 0.42rem;
  border-radius: 2px;
  background: rgba(10, 15, 44, 0.09);
}

.page-news .news-chip--all .news-chip__n {
  background: rgba(10, 15, 44, 0.16);
}

/* ---------- 02 日志列表 ---------- */

.page-news .log-stream {
  position: relative;
  padding-left: 0.1rem;
}

.page-news .log-stream::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 1.6rem;
  bottom: 1.6rem;
  width: 1px;
  background: linear-gradient(
    180deg,
    var(--gold) 0%,
    var(--mint) 32%,
    var(--cobalt) 66%,
    var(--coral) 100%
  );
  opacity: 0.5;
  pointer-events: none;
}

.page-news .log-item {
  position: relative;
  padding-left: 1.6rem;
  border-bottom: 1px solid var(--hairline);
}

.page-news .log-item:first-child {
  border-top: 1px solid var(--hairline);
}

.page-news .log-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.55rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--slate);
  box-shadow: 0 0 0 4px var(--ring);
  transition: background var(--dur-fast) var(--ease);
}

.page-news .log-item[data-cat="version"]::before { background: var(--cat-version); }
.page-news .log-item[data-cat="tag"]::before { background: var(--cat-tag); }
.page-news .log-item[data-cat="rule"]::before { background: var(--cat-rule); }
.page-news .log-item[data-cat="design"]::before { background: var(--cat-design); }
.page-news .log-item[data-cat="guide"]::before { background: var(--cat-guide); }

.page-news .log-item__summary {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  grid-template-areas:
    "num cat"
    "num title"
    ".   scope"
    ".   time";
  gap: 0.4rem 0.9rem;
  padding: 1.15rem 0;
  cursor: pointer;
  list-style: none;
}

.page-news .log-item__summary::-webkit-details-marker {
  display: none;
}

.page-news .log-item__summary::marker {
  content: "";
}

.page-news .log-item__summary:hover .log-title {
  color: var(--gold);
}

.page-news .log-item[open] .log-title {
  color: var(--gold);
}

.page-news .log-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--slate);
  padding-top: 0.2rem;
}

.page-news .log-cat {
  grid-area: cat;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-news .log-title {
  grid-area: title;
  display: block;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--mist);
  transition: color var(--dur-fast) var(--ease);
}

.page-news .log-scope {
  grid-area: scope;
  display: block;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .log-time {
  grid-area: time;
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .log-item__body {
  padding: 0 0 1.35rem 3.4rem;
}

.page-news .log-item__body p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--slate);
  max-width: 62ch;
}

/* ---------- 03 版本迭代 ---------- */

.page-news .iter-grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 2.8rem);
}

.page-news .iter-item {
  padding-top: 1.3rem;
  border-top: 1px solid var(--hairline-strong);
  margin-top: 1.9rem;
}

.page-news .iter-item:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-news .iter-item__meta {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-news .iter-item__ver {
  display: inline-block;
  padding: 0.14rem 0.5rem;
  background: var(--cobalt);
  color: var(--paper);
  clip-path: var(--cut-sm);
  letter-spacing: 0.06em;
}

.page-news .iter-item__title {
  margin: 0 0 0.4rem;
  font-size: clamp(1.1rem, 2.4vw, 1.32rem);
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink-0);
}

.page-news .iter-dl {
  margin: 0.9rem 0 0;
  display: grid;
  gap: 0;
}

.page-news .iter-dl__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.15rem;
  padding: 0.7rem 0;
  border-top: 1px solid var(--hairline);
}

.page-news .iter-dl dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--mint-deep);
}

.page-news .iter-dl dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink-1);
}

.page-news .iter-figure {
  margin: 0;
}

.page-news .iter-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 640;
  object-fit: cover;
  background: var(--ink-1);
  clip-path: var(--cut);
}

.page-news .iter-figure__cap {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 04 分类调整 ---------- */

.page-news .tag-grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

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

.page-news .tag-log__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "act time"
    "name name"
    "note note";
  gap: 0.5rem 0.9rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--hairline);
}

.page-news .tag-log__row:first-child {
  border-top: 1px solid var(--hairline);
}

.page-news .tag-log__act {
  grid-area: act;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.58rem;
  color: var(--ink-0);
  background: var(--slate);
}

.page-news .tag-log__act--new { background: var(--mint); }
.page-news .tag-log__act--merge { background: var(--gold); }
.page-news .tag-log__act--retire { background: var(--coral); color: var(--paper); }
.page-news .tag-log__act--rename { background: var(--cobalt); color: var(--paper); }

.page-news .tag-log__name {
  grid-area: name;
  display: block;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--mist);
}

.page-news .tag-log__cat {
  display: inline-block;
  margin-left: 0.6rem;
  padding: 0.06rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--mint);
  border: 1px solid rgba(63, 214, 176, 0.4);
  vertical-align: 0.12em;
}

.page-news .tag-log__note {
  grid-area: note;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .tag-log__time {
  grid-area: time;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .tag-figure {
  margin: 0;
}

.page-news .tag-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 500;
  object-fit: cover;
  background: var(--ink-1);
  clip-path: var(--cut);
}

.page-news .tag-figure__cap {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-news .tag-outro {
  margin: clamp(1.8rem, 4vw, 2.6rem) 0 0;
}

/* ---------- 05 规则校订 ---------- */

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

.page-news .rule-log__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "range n"
    "type typе2"
    "where where";
  gap: 0.35rem 0.9rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--hairline);
}

.page-news .rule-log__row:first-child {
  border-top: 1px solid var(--hairline);
}

.page-news .rule-log__range {
  grid-area: range;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-0);
}

.page-news .rule-log__type {
  grid-area: type;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--mint-deep);
}

.page-news .rule-log__where {
  grid-area: where;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-news .rule-log__n {
  grid-area: n;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .rule-log__foot {
  margin: 1.5rem 0 0;
  max-width: 58ch;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-news .rule-log__cta {
  margin: 1.2rem 0 0;
}

/* ---------- 06 设计手记 ---------- */

.page-news .design-grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-news .design-figure {
  margin: 0;
}

.page-news .design-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--ink-1);
  clip-path: var(--cut);
}

.page-news .design-figure__cap {
  margin-top: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-news .design-p {
  margin: 0 0 1rem;
  max-width: 60ch;
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--slate);
}

.page-news .design-p:last-child {
  margin-bottom: 0;
}

/* ---------- 07 回看与订阅 ---------- */

.page-news .news-subscribe {
  background:
    radial-gradient(90% 70% at 88% 4%, rgba(255, 194, 74, 0.14) 0%, transparent 58%),
    var(--ink-1);
  color: var(--mist);
  padding-bottom: clamp(3rem, 7vw, 5.2rem);
}

.page-news .news-subscribe .news-h2 {
  color: var(--paper);
}

.page-news .sub-grid {
  display: grid;
  gap: 1.4rem;
}

.page-news .sub-card {
  position: relative;
  padding: 1.5rem 1.4rem 1.6rem;
  background: rgba(10, 15, 44, 0.55);
  border: 1px solid var(--hairline-strong);
  clip-path: var(--cut);
}

.page-news .sub-card__no {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-news .sub-card__title {
  margin: 0 0 0.7rem;
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .sub-card__text {
  margin: 0 0 0.75rem;
  font-size: 0.91rem;
  line-height: 1.85;
  color: var(--slate);
}

.page-news .sub-card__text:last-child {
  margin-bottom: 0;
}

.page-news .sub-card__text--meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--mint);
  word-break: break-word;
}

.page-news .sub-mail {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 214, 176, 0.45);
}

.page-news .sub-mail:hover,
.page-news .sub-mail:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

.page-news .sub-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.6rem;
  margin: clamp(1.8rem, 4vw, 2.4rem) 0 0;
}

.page-news .sub-cta__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline-strong);
  padding-bottom: 0.1rem;
}

.page-news .sub-cta__link:hover,
.page-news .sub-cta__link:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
}

/* ---------- 平板及桌面 ---------- */

@media (min-width: 700px) {
  .page-news .log-item__summary {
    grid-template-columns: 3rem 8.5rem minmax(0, 1fr) 5.5rem;
    grid-template-areas:
      "num cat title time"
      "num cat scope time";
    align-items: start;
    gap: 0.5rem 1.3rem;
    padding: 1.25rem 0;
  }

  .page-news .log-time {
    text-align: right;
  }

  .page-news .log-item__body {
    padding: 0 0 1.5rem 4.7rem;
  }

  .page-news .iter-dl__row {
    grid-template-columns: 5rem minmax(0, 1fr);
    gap: 0.3rem 1rem;
    align-items: baseline;
  }

  .page-news .tag-log__row {
    grid-template-columns: 5.2rem minmax(0, 1fr) 5.5rem;
    grid-template-areas:
      "act name time"
      "act note note";
    align-items: baseline;
    gap: 0.4rem 1.1rem;
  }

  .page-news .rule-log__row {
    grid-template-columns: 9rem 8rem minmax(0, 1fr) 5rem;
    grid-template-areas: "range type where n";
    align-items: baseline;
    gap: 0.4rem 1.1rem;
  }

  .page-news .sub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-news .news-hero__lede {
    font-size: 1.08rem;
  }

  .page-news .iter-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-news .iter-figure {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-news .tag-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: start;
  }

  .page-news .design-grid {
    grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
    align-items: start;
  }

  .page-news .design-figure {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-news .sub-card {
    padding: 1.9rem 1.8rem 2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-chip,
  .page-news .log-title,
  .page-news .log-item::before {
    transition: none;
  }
}