.page-news {
  --news-line: var(--yb-grid);
  --news-accent-soft: rgba(53, 231, 192, 0.14);
  --news-dim: rgba(23, 36, 31, 0.72);
  color: var(--yb-ink);
  padding-bottom: clamp(48px, 7vw, 90px);
}

.page-news img {
  max-width: 100%;
  height: auto;
}

.page-news figcaption {
  margin-top: 0.7rem;
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--yb-muted);
}

.page-news .yb-breadcrumb {
  padding-top: clamp(14px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
  padding-top: clamp(16px, 3vw, 34px);
}

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

.page-news .news-hero h1 {
  margin: 0.35em 0 0.55em;
  font-size: clamp(1.85rem, 6.4vw, 3.25rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.page-news .news-hero .yb-lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(1rem, 2.2vw, 1.06rem);
  line-height: 1.85;
  color: var(--yb-muted);
}

.page-news .news-hero__note {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--yb-accent);
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--yb-muted);
}

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

.page-news .news-hero__figure .yb-media {
  border-radius: var(--yb-radius);
  overflow: hidden;
  border: 1px solid var(--news-line);
  box-shadow: var(--yb-shadow);
}

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

@media (min-width: 900px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(36px, 5vw, 70px);
  }
}

/* ---------- 最近更新概览 ---------- */
.page-news .news-overview {
  position: relative;
  margin-top: clamp(34px, 5vw, 60px);
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--yb-radius);
  border: 1px solid var(--news-line);
  overflow: hidden;
  background-color: var(--yb-layer);
  background-image:
    linear-gradient(115deg, rgba(53, 231, 192, 0.16), rgba(53, 231, 192, 0) 62%),
    linear-gradient(var(--news-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--news-line) 1px, transparent 1px);
  background-size: 100% 100%, 56px 56px, 56px 56px;
}

.page-news .news-overview::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(20px, 3vw, 36px);
  width: clamp(56px, 14vw, 132px);
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: var(--yb-signal);
}

.page-news .news-overview__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 1rem;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-news .news-overview__meta {
  margin: 0;
  font-family: var(--yb-font-cond);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--yb-accent);
}

.page-news .news-overview__title {
  margin: 0;
  font-family: var(--yb-font-serif);
  font-size: clamp(1.1rem, 2.6vw, 1.45rem);
  font-weight: 600;
  line-height: 1.4;
}

.page-news .news-overview__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-news .news-overview__item {
  padding-left: 1rem;
  border-left: 2px solid var(--news-line);
}

.page-news .news-overview__tag {
  margin: 0 0 0.35rem;
  font-family: var(--yb-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--yb-cool);
}

.page-news .news-overview__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--yb-muted);
}

@media (min-width: 840px) {
  .page-news .news-overview__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 分类胶囊与条目目录 ---------- */
.page-news .news-feed {
  padding-top: clamp(50px, 8vw, 92px);
}

.page-news .news-feed .yb-h2 {
  margin: 0.3em 0 0;
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-news .news-filter .yb-tag {
  text-decoration: none;
  font-family: var(--yb-font-cond);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.page-news .news-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-entry {
  position: relative;
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 0.3rem 0.9rem;
  padding: 1.1rem 0.7rem 1.25rem 0;
  border-top: 1px solid var(--news-line);
  transition: background-color 0.24s ease;
}

.page-news .news-entry::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--news-accent-soft), rgba(53, 231, 192, 0) 68%);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.28s ease, transform 0.28s ease;
  pointer-events: none;
}

.page-news .news-entry:hover,
.page-news .news-entry:focus-within {
  background-color: var(--yb-layer);
}

.page-news .news-entry:hover::before,
.page-news .news-entry:focus-within::before {
  opacity: 1;
  transform: translateX(0);
}

.page-news .news-entry__num {
  position: relative;
  align-self: start;
  padding-bottom: 0.15rem;
  font-family: var(--yb-font-mono);
  font-size: 1.3rem;
  line-height: 1.2;
  color: var(--yb-accent);
  border-bottom: 2px solid var(--news-accent-soft);
}

.page-news .news-entry__body {
  position: relative;
  display: grid;
  gap: 0.45rem;
  min-width: 0;
}

.page-news .news-entry__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.7rem;
}

.page-news .news-entry__tag {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.page-news .news-entry__time {
  font-family: var(--yb-font-mono);
  font-size: 0.75rem;
  color: var(--yb-muted);
}

.page-news .news-entry__title {
  margin: 0;
  font-family: var(--yb-font-serif);
  font-size: clamp(1.02rem, 2.4vw, 1.3rem);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: -0.005em;
}

.page-news .news-entry__title a {
  color: inherit;
  text-decoration: none;
}

.page-news .news-entry__title a:hover,
.page-news .news-entry__title a:focus-visible {
  color: var(--yb-accent);
}

.page-news .news-entry__summary {
  margin: 0;
  max-width: 68ch;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--yb-muted);
}

.page-news .news-entry__link {
  justify-self: start;
  font-family: var(--yb-font-cond);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--yb-signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: opacity 0.24s ease, transform 0.24s ease, border-color 0.24s ease;
}

.page-news .news-entry__link:hover,
.page-news .news-entry__link:focus-visible {
  border-bottom-color: var(--yb-signal);
}

@media (hover: hover) and (min-width: 960px) {
  .page-news .news-entry {
    grid-template-columns: 4rem minmax(0, 1fr);
    gap: 0.4rem 1.4rem;
    padding-right: 1.2rem;
  }

  .page-news .news-entry__link {
    opacity: 0;
    transform: translateX(-6px);
  }

  .page-news .news-entry:hover .news-entry__link,
  .page-news .news-entry:focus-within .news-entry__link {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---------- 三个系列区块 ---------- */
.page-news .news-series {
  padding-top: clamp(52px, 8vw, 96px);
}

.page-news .news-series .yb-h2 {
  margin: 0.3em 0 0.65em;
}

.page-news .news-series .yb-text {
  margin: 0 0 1rem;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--yb-muted);
}

.page-news .news-series .yb-text a {
  color: var(--yb-accent);
  text-underline-offset: 3px;
}

.page-news .news-series__aside {
  margin-top: clamp(22px, 4vw, 0px);
}

.page-news .news-series .yb-figure {
  margin: 0;
}

.page-news .news-series .yb-media {
  border-radius: var(--yb-radius-sm);
  overflow: hidden;
  border: 1px solid var(--news-line);
}

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

.page-news .news-sample {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 2.6vw, 26px);
  border-radius: var(--yb-radius-sm);
  background: var(--yb-layer);
  border-left: 3px solid var(--yb-signal);
}

.page-news .news-sample__label {
  margin: 0 0 0.5rem;
  font-family: var(--yb-font-cond);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.72rem;
  color: var(--yb-signal);
}

.page-news .news-sample__text {
  margin: 0;
  font-family: var(--yb-font-mono);
  font-size: 0.88rem;
  line-height: 1.9;
  color: var(--yb-ink);
}

.page-news .news-rulelist {
  list-style: none;
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-news .news-rulelist li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--yb-muted);
}

.page-news .news-rulelist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 0.75rem;
  height: 2px;
  background: var(--yb-accent);
}

/* ---------- 版本时间线 ---------- */
.page-news .news-timeline {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--news-line);
  border: 1px solid var(--news-line);
  border-radius: var(--yb-radius-sm);
  overflow: hidden;
}

.page-news .news-timeline__item {
  display: grid;
  gap: 0.35rem;
  padding: clamp(16px, 2.4vw, 24px) clamp(16px, 2.6vw, 28px);
  background: var(--yb-bg);
}

.page-news .news-timeline__stage {
  font-family: var(--yb-font-cond);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.74rem;
  color: var(--yb-cool);
}

.page-news .news-timeline__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--yb-muted);
}

@media (min-width: 820px) {
  .page-news .news-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 订阅与归档 ---------- */
.page-news .news-subscribe {
  position: relative;
  margin-top: clamp(52px, 8vw, 96px);
  padding: clamp(26px, 4.5vw, 58px);
  border-radius: var(--yb-radius);
  background: var(--yb-paper);
  color: var(--yb-ink-dark);
  overflow: hidden;
}

.page-news .news-subscribe::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -45%;
  width: 62%;
  height: 150%;
  background: linear-gradient(120deg, rgba(53, 231, 192, 0.34), rgba(53, 231, 192, 0) 70%);
  transform: skewX(-9deg);
  pointer-events: none;
}

.page-news .news-subscribe .yb-grid {
  position: relative;
}

.page-news .news-subscribe__eyebrow {
  color: var(--yb-ink-dark);
  opacity: 0.62;
}

.page-news .news-subscribe .yb-h2,
.page-news .news-subscribe__title {
  margin: 0.3em 0 0.6em;
  color: var(--yb-ink-dark);
}

.page-news .news-subscribe__text {
  margin: 0 0 1rem;
  max-width: 58ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--yb-ink-dark);
  opacity: 0.82;
}

.page-news .news-subscribe__text a {
  color: var(--yb-ink-dark);
  text-decoration: underline;
  text-decoration-color: var(--yb-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-news .news-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-news .news-subscribe .yb-btn--ghost {
  color: var(--yb-ink-dark);
  border-color: rgba(23, 36, 31, 0.3);
}

.page-news .news-archive {
  margin-top: clamp(10px, 2vw, 18px);
}

.page-news .news-archive .yb-details {
  border-radius: var(--yb-radius-sm);
  border: 1px solid rgba(23, 36, 31, 0.14);
  background: rgba(255, 255, 255, 0.55);
  padding: clamp(16px, 2.4vw, 22px);
}

.page-news .news-archive .yb-details summary {
  color: var(--yb-ink-dark);
  font-family: var(--yb-font-serif);
  font-size: 1rem;
}

.page-news .news-archive__list {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-news .news-archive__list a {
  color: var(--yb-ink-dark);
  font-size: 0.9rem;
  line-height: 1.6;
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 36, 31, 0.2);
  padding-bottom: 1px;
}

.page-news .news-archive__list a:hover,
.page-news .news-archive__list a:focus-visible {
  border-bottom-color: var(--yb-accent);
}

.page-news .news-subscribe__foot {
  margin: 1.2rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--news-dim);
}

.page-news .news-subscribe__foot a {
  color: var(--yb-ink-dark);
  text-decoration: underline;
  text-decoration-color: var(--yb-accent);
  text-underline-offset: 3px;
}

/* ---------- 回到顶部 ---------- */
.page-news .news-totop {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.95rem;
  border-radius: var(--yb-pill);
  background: var(--yb-layer);
  border: 1px solid var(--news-line);
  color: var(--yb-ink);
  text-decoration: none;
  font-family: var(--yb-font-cond);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.68rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-news .news-totop:hover,
.page-news .news-totop:focus-visible {
  color: var(--yb-accent);
  border-color: var(--yb-accent);
}

@media (max-width: 600px) {
  .page-news .news-overview,
  .page-news .news-subscribe {
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }

  .page-news .news-entry {
    grid-template-columns: 2.2rem minmax(0, 1fr);
    gap: 0.25rem 0.7rem;
    padding-right: 0.2rem;
  }

  .page-news .news-entry__num {
    font-size: 1.1rem;
  }

  .page-news .news-subscribe__actions .yb-btn {
    width: 100%;
    justify-content: center;
  }
}