.page-news {
  --news-rail-w: 264px;
  --cut: 46px;
  padding-bottom: 3.5rem;
}

/* ---------- 位置提示 ---------- */
.page-news .crumbs {
  padding-top: 1.75rem;
  font-size: var(--fs-14);
  color: var(--ink-dim);
}
.page-news .crumbs a {
  color: var(--ink-dim);
  transition: color 0.25s var(--ease);
}
.page-news .crumbs a:hover,
.page-news .crumbs a:focus-visible {
  color: var(--c-cyan);
}
.page-news .crumbs [aria-current="page"] {
  color: var(--c-white);
  font-weight: 600;
}
.page-news .news-sep {
  margin: 0 0.55rem;
  color: var(--c-mist);
}

/* ---------- 编辑部题头 ---------- */
.page-news .news-masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  padding: 1.5rem 0 3rem;
}
.page-news .news-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.page-news .news-kicker__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.18);
}
.page-news .news-masthead h1 {
  margin: 0.6rem 0 1.1rem;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.6rem, 8vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--c-white);
}
.page-news .news-masthead .lead {
  max-width: 62ch;
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-news .news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 2.25rem;
  margin: 1.9rem 0 0;
  padding: 1.25rem 0 0;
  list-style: none;
  border-top: 1px solid var(--hair);
  font-size: var(--fs-14);
  color: var(--ink-dim);
}
.page-news .news-meta .num {
  display: inline-block;
  margin-right: 0.45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  font-weight: 700;
  color: var(--c-sand);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.page-news .news-masthead__visual .media {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

/* ---------- 左侧索引 + 右侧条目流 ---------- */
.page-news .news-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}
.page-news .news-rail__title {
  margin: 0 0 1rem;
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.page-news .news-rail__list {
  display: grid;
  gap: 0.15rem;
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
}
.page-news .news-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.6rem 0.75rem;
  border-left: 2px solid transparent;
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: var(--fs-17);
  font-weight: 600;
  color: var(--ink-dim);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.page-news .news-rail__list a:hover,
.page-news .news-rail__list a:focus-visible {
  color: var(--c-white);
  border-left-color: var(--c-cyan);
  background: rgba(0, 229, 255, 0.06);
}
.page-news .news-rail__no {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--c-orange);
  font-variant-numeric: tabular-nums;
}
.page-news .news-rail__note {
  padding-top: 1.25rem;
  border-top: 1px solid var(--hair);
  font-size: var(--fs-14);
  color: var(--ink-dim);
}
.page-news .news-rail__note p {
  margin: 0 0 1rem;
  line-height: 1.75;
}

/* ---------- 章节节奏 ---------- */
.page-news .news-section {
  margin-bottom: 4rem;
}
.page-news .news-section:last-child {
  margin-bottom: 0;
}
.page-news .section__sub {
  max-width: 58ch;
  color: var(--ink-dim);
}

/* ---------- 封面 ---------- */
.page-news .news-cover {
  margin: 0 0 1.5rem;
}
.page-news .news-cover .media {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-lg);
  overflow: hidden;
}

/* ---------- 条目列表 ---------- */
.page-news .news-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-item {
  position: relative;
  padding: 1.2rem 1.4rem 1.25rem;
  background: var(--c-indigo);
  border: 1px solid var(--hair);
  border-left: 3px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--r-md);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-left-color 0.3s var(--ease);
}
.page-news .news-item:hover,
.page-news .news-item:focus-within {
  transform: translateY(-2px);
  border-left-color: var(--c-cyan);
  box-shadow: var(--shadow-1), inset 0 0 0 1px rgba(0, 229, 255, 0.12);
}
.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.55rem;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ink-dim);
}
.page-news .news-item__title {
  margin: 0;
  font-size: var(--fs-22);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.012em;
  color: var(--c-white);
}
.page-news .news-item__lead {
  margin: 0.55rem 0 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--ink-dim);
}
.page-news .news-item__more {
  max-height: 0;
  margin: 0;
  padding-top: 0;
  overflow: hidden;
  opacity: 0;
  border-top: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--c-teal);
  transition: max-height 0.35s var(--ease), opacity 0.3s var(--ease),
    margin-top 0.3s var(--ease), padding-top 0.3s var(--ease);
}
.page-news .news-item:hover .news-item__more,
.page-news .news-item:focus-within .news-item__more {
  max-height: 6rem;
  margin-top: 0.75rem;
  padding-top: 0.65rem;
  opacity: 1;
  border-top-color: var(--hair);
}

/* ---------- 宽幅专题卡（斜切右下角） ---------- */
.page-news .news-feature {
  margin-top: 1.5rem;
  padding: 2rem 2.25rem 2.6rem;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(0, 229, 255, 0.22), transparent 55%),
    linear-gradient(150deg, var(--c-berry) 0%, var(--c-night) 100%);
  border-radius: var(--r-lg) 0 var(--r-lg) var(--r-lg);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
}
.page-news .news-feature__label {
  margin: 0 0 0.85rem;
  font-size: var(--fs-12);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-sand);
}
.page-news .news-feature__title {
  max-width: 24ch;
  margin: 0 0 0.9rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.022em;
  color: var(--c-white);
}
.page-news .news-feature__text {
  max-width: 62ch;
  margin: 0 0 1.6rem;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--c-white);
  opacity: 0.88;
}

/* ---------- 数据观察的分栏 ---------- */
.page-news .news-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
}
.page-news .news-figure {
  margin: 0;
}
.page-news .news-figure .media {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  overflow: hidden;
}

/* ---------- 版本日志 ---------- */
.page-news .news-band {
  max-width: 640px;
  margin: 0 0 2rem;
}
.page-news .news-band .media {
  border: 1px solid var(--glass-line);
  border-radius: var(--r-md);
  overflow: hidden;
}
.page-news .relog {
  border-top: 1px solid var(--hair);
}
.page-news .relog details {
  border-bottom: 1px solid var(--hair);
}
.page-news .relog summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  padding: 1.15rem 2rem 1.15rem 0;
  position: relative;
  cursor: pointer;
  list-style: none;
  transition: color 0.25s var(--ease);
}
.page-news .relog summary::-webkit-details-marker {
  display: none;
}
.page-news .relog summary:hover {
  color: var(--c-cyan);
}
.page-news .relog summary::after {
  content: "＋";
  position: absolute;
  right: 0;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-17);
  color: var(--c-cyan);
}
.page-news .relog details[open] summary::after {
  content: "－";
}
.page-news .relog__ver {
  font-family: var(--font-mono);
  font-size: var(--fs-22);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-orange);
  font-variant-numeric: tabular-nums;
}
.page-news .relog__season {
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}
.page-news .relog__note {
  font-size: var(--fs-14);
  color: var(--ink-dim);
}
.page-news .relog__items {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding: 0 0 1.5rem;
  list-style: none;
}
.page-news .relog__items li {
  position: relative;
  padding-left: 1.25rem;
  font-size: var(--fs-17);
  line-height: 1.7;
  color: var(--ink-dim);
}
.page-news .relog__items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.14);
}

/* ---------- 阅读方式 ---------- */
.page-news .news-how {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-bottom: 1.85rem;
}
.page-news .news-how__card {
  padding: 1.4rem 1.3rem 1.55rem;
  background: var(--c-indigo);
  border: 1px solid var(--hair);
  border-top: 2px solid var(--c-teal);
  border-radius: var(--r-md);
}
.page-news .news-how__card h3 {
  margin: 0 0 0.6rem;
  font-size: var(--fs-17);
  font-weight: 800;
  color: var(--c-white);
}
.page-news .news-how__card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--ink-dim);
}

/* ---------- 行动面板 ---------- */
.page-news .news-cta {
  padding: 1.85rem 1.9rem 1.95rem;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-lg);
}
.page-news .news-cta h3 {
  margin: 0 0 0.65rem;
  font-size: var(--fs-22);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--c-white);
}
.page-news .news-cta p {
  max-width: 62ch;
  margin: 0 0 1.5rem;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--ink-dim);
}
.page-news .news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-how {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
  }
  .page-news .news-how__card:nth-child(2) {
    transform: translateY(14px);
  }
  .page-news .news-cta {
    padding: 2.25rem 2.4rem;
  }
}

@media (min-width: 880px) {
  .page-news .news-masthead {
    grid-template-columns: minmax(0, 1.85fr) minmax(0, 1fr);
    gap: 3.25rem;
    align-items: center;
    padding: 2rem 0 4rem;
  }
  .page-news .news-split {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-news .news-shell {
    grid-template-columns: var(--news-rail-w) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: start;
  }
  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    padding-right: 0.5rem;
    border-right: 1px solid var(--hair);
  }
  .page-news .news-item {
    padding: 1.35rem 1.6rem 1.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item__more,
  .page-news .news-rail__list a,
  .page-news .news-how__card {
    transition: none;
  }
  .page-news .news-how__card:nth-child(2) {
    transform: none;
  }
}