.page-news {
  --indigo-soft: #8C82F5;
  --news-gap: 20px;
}

/* ---------- 专栏刊头 ---------- */
.page-news .news-masthead {
  padding-top: 6px;
  padding-bottom: 34px;
}

.page-news .news-masthead__grid {
  display: grid;
  gap: 30px;
}

.page-news .news-masthead h1 {
  margin: 14px 0 0;
  font-size: clamp(2.5rem, 8vw, 4.4rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.02;
  color: var(--snow);
}

.page-news .news-masthead h1::after {
  content: "";
  display: block;
  width: 76px;
  height: 3px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--cyan), rgba(56, 224, 208, 0));
}

.page-news .news-masthead .lede {
  margin: 22px 0 0;
  max-width: 46ch;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--frost);
}

.page-news .news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line-soft);
}

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

.page-news .news-stats dt {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--frost);
}

.page-news .news-stats dd {
  margin: 8px 0 0;
  font-size: 1.04rem;
  color: var(--cyan);
}

.page-news .news-masthead__figure {
  margin: 0;
  aspect-ratio: 3 / 2;
}

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

/* ---------- 区块标题 ---------- */
.page-news .news-head {
  margin-bottom: 28px;
}

.page-news .news-head h2 {
  margin: 12px 0 0;
  font-size: clamp(1.45rem, 3.4vw, 2.05rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.3;
  color: var(--snow);
}

.page-news .news-head__note,
.page-news .news-anatomy__note {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--frost);
}

/* ---------- 标签分区 ---------- */
.page-news .news-labels {
  padding-top: 34px;
}

.page-news .news-tagdefs {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-news .news-tagdef {
  position: relative;
  min-width: 0;
  padding: 26px 22px 24px;
  background: var(--ink-800);
  border-top: 3px solid var(--line-soft);
}

.page-news .news-tagdef--batch { border-top-color: var(--cyan); }
.page-news .news-tagdef--guide { border-top-color: var(--gold); }
.page-news .news-tagdef--rule { border-top-color: var(--indigo-soft); }
.page-news .news-tagdef--notice { border-top-color: var(--frost); }

.page-news .news-tagdef__name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--snow);
}

.page-news .news-tagdef__desc {
  margin: 12px 0 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--frost);
}

.page-news .news-tagdef__when {
  margin: 18px 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 筛选芯片 ---------- */
.page-news .news-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-news .news-chips .chip {
  padding: 8px 16px;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: var(--frost);
  background: transparent;
  border: 1px solid var(--frost);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-news .news-chips .chip:hover {
  color: var(--snow);
  border-color: var(--snow);
}

.page-news .news-chips .chip[aria-pressed="true"] {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-news .news-chips .chip:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 条目流 ---------- */
.page-news .news-feed-section {
  padding-top: 34px;
}

.page-news .news-feed {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gap);
}

.page-news .entry {
  position: relative;
  min-width: 0;
  padding: 26px 22px 24px;
  background: linear-gradient(158deg, var(--ice-700), var(--ink-800));
  border: 1px solid var(--line-soft);
  border-radius: 16px 4px 16px 4px;
  transition: border-color 0.24s ease, transform 0.24s ease;
}

.page-news .entry::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 22px;
  width: 46px;
  height: 2px;
  background: var(--cyan);
}

.page-news .entry:hover,
.page-news .entry:focus-within {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--frost);
}

.page-news .entry__tag {
  padding: 4px 10px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.page-news .entry__tag--batch { color: var(--cyan); }
.page-news .entry__tag--guide { color: var(--gold); }
.page-news .entry__tag--rule { color: var(--indigo-soft); }
.page-news .entry__tag--notice { color: var(--frost); }

.page-news .entry__batch {
  margin-left: auto;
  text-align: right;
  color: var(--snow);
}

.page-news .entry__when {
  color: var(--frost);
}

.page-news .entry__title {
  margin: 16px 0 0;
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.55;
  color: var(--snow);
}

.page-news .entry--wide .entry__title {
  font-size: clamp(1.22rem, 2.6vw, 1.58rem);
  line-height: 1.42;
}

.page-news .entry__excerpt {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.82;
  color: var(--frost);
}

.page-news .entry__figure {
  margin: 20px 0 0;
  aspect-ratio: 5 / 3;
  border-radius: 12px 2px 12px 2px;
  overflow: hidden;
}

/* ---------- 条目结构 ---------- */
.page-news .news-anatomy {
  padding-top: 34px;
}

.page-news .news-anatomy__grid {
  display: grid;
  gap: 32px;
}

.page-news .news-anatomy h2 {
  margin: 12px 0 0;
  font-size: clamp(1.45rem, 3.4vw, 2.05rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--snow);
}

.page-news .news-anatomy__steps {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .news-anatomy__step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
}

.page-news .news-anatomy__num {
  font-size: 0.86rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-news .news-anatomy__name {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--snow);
}

.page-news .news-anatomy__desc {
  margin: 8px 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--frost);
}

.page-news .news-anatomy__figure {
  margin: 0;
  aspect-ratio: 12 / 7;
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm {
  padding-top: 34px;
}

.page-news .news-rhythm__inner {
  max-width: 780px;
}

.page-news .news-rhythm h2 {
  margin: 12px 0 0;
  font-size: clamp(1.45rem, 3.4vw, 2.05rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.3;
  color: var(--snow);
}

.page-news .news-rhythm__lead {
  margin: 18px 0 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--frost);
}

.page-news .news-rhythm__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-news .news-rhythm__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 18px;
  background: var(--ink-800);
}

.page-news .news-rhythm__key {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-news .news-rhythm__val {
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--snow);
}

.page-news .news-rhythm__foot {
  margin: 26px 0 0;
  font-size: 0.94rem;
  line-height: 1.9;
  color: var(--frost);
}

.page-news .news-rhythm__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-rhythm__foot a:hover {
  color: var(--gold);
}

/* ---------- 往期归档 ---------- */
.page-news .news-archive {
  padding-top: 34px;
  padding-bottom: 60px;
}

.page-news .news-archive__list {
  border-top: 1px solid var(--line-soft);
}

.page-news .news-archive__group {
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-archive__group summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  padding: 22px 4px;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--snow);
  transition: color 0.2s ease;
}

.page-news .news-archive__group summary::-webkit-details-marker {
  display: none;
}

.page-news .news-archive__group summary:hover {
  color: var(--cyan);
}

.page-news .news-archive__group summary::after {
  content: "＋";
  margin-left: 8px;
  font-size: 1.05rem;
  color: var(--cyan);
}

.page-news .news-archive__group[open] summary::after {
  content: "－";
}

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

.page-news .news-archive__count {
  margin-left: auto;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--frost);
}

.page-news .news-archive__body {
  padding: 0 4px 24px;
  max-width: 74ch;
}

.page-news .news-archive__body p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--frost);
}

.page-news .news-archive__hint {
  margin-top: 12px !important;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  color: var(--snow) !important;
}

.page-news .news-archive__figure {
  margin: 38px 0 0;
  aspect-ratio: 18 / 5;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-rhythm__list li {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 800px) {
  .page-news .news-tagdefs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 44px;
    align-items: start;
  }

  .page-news .news-masthead__lead {
    grid-column: span 7;
  }

  .page-news .news-masthead__figure {
    grid-column: span 5;
  }

  .page-news .news-head--row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 36px;
  }

  .page-news .news-head--row .news-head__main {
    flex: 0 1 auto;
    min-width: 0;
  }

  .page-news .news-head--row .news-chips {
    margin-top: 0;
    flex: 0 1 auto;
    justify-content: flex-end;
  }

  .page-news .news-feed {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news .entry--wide {
    grid-column: span 4;
  }

  .page-news .entry--narrow {
    grid-column: span 2;
  }

  .page-news .entry--wide {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 24px;
    align-items: center;
  }

  .page-news .entry--wide .entry__body {
    min-width: 0;
  }

  .page-news .entry--wide .entry__figure {
    margin: 0;
  }

  .page-news .news-anatomy__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 44px;
    align-items: center;
  }

  .page-news .news-anatomy__text {
    grid-column: span 6;
  }

  .page-news .news-anatomy__figure {
    grid-column: span 6;
  }
}

@media (min-width: 1200px) {
  .page-news .news-tagdefs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-masthead__lead {
    grid-column: span 6;
  }

  .page-news .news-masthead__figure {
    grid-column: span 5 / span 5;
    grid-column-start: 8;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry,
  .page-news .news-chips .chip,
  .page-news .news-archive__group summary {
    transition: none;
  }

  .page-news .entry:hover,
  .page-news .entry:focus-within {
    transform: none;
  }
}