.page-news {
  --news-aside-w: 232px;
  --news-row-num: 82px;
  --news-dash: repeating-linear-gradient(to right, var(--hairline-strong) 0 6px, transparent 6px 13px);
}

/* ============ 页首横幅 ============ */
.page-news .news-hero {
  padding: clamp(18px, 2.6vw, 32px) 0 0;
}
.page-news .news-hero__wrap {
  position: relative;
  display: grid;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: clamp(280px, 36vw, 430px);
  box-shadow: var(--shadow-2);
}
.page-news .news-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.page-news .news-hero__overlay {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 14px;
  padding: clamp(22px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(10, 26, 42, .12) 0%, rgba(10, 26, 42, .68) 52%, rgba(10, 26, 42, .93) 100%);
  color: var(--on-ink);
}
.page-news .news-hero__overlay .eyebrow {
  color: var(--gold-500);
  margin: 0;
}
.page-news .news-hero__overlay h1 {
  margin: 0;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--on-ink);
}
.page-news .news-hero__lede {
  margin: 0;
  max-width: 44em;
  font-size: clamp(14px, 1.15vw, 16.5px);
  line-height: 1.78;
  color: var(--on-ink-soft);
}

/* ============ 主体布局 ============ */
.page-news .news-body {
  padding: var(--space-section) 0;
}
.page-news .news-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

/* ============ 左侧粘性栏目索引 ============ */
.page-news .news-aside {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background: var(--cream-100);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  min-width: 0;
}
.page-news .news-aside__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate-600);
}
.page-news .news-aside__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.page-news .news-aside__item + .news-aside__item {
  border-top: 1px dashed var(--hairline-strong);
}
.page-news .news-aside__link {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 12px 2px;
  color: var(--brown-900);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-news .news-aside__link:hover {
  color: var(--ink-900);
  border-bottom-color: var(--gold-500);
}
.page-news .news-aside__num {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold-500);
}
.page-news .news-aside__name {
  font-size: 15px;
  font-weight: 600;
}
.page-news .news-aside__count {
  font-size: 12px;
  color: var(--slate-600);
}
.page-news .news-aside__note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--slate-600);
}

/* ============ 右侧条目流 ============ */
.page-news .news-stream {
  display: flex;
  flex-direction: column;
  gap: clamp(46px, 6vw, 78px);
  min-width: 0;
}
.page-news .news-col {
  min-width: 0;
}
.page-news .news-col__head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}
.page-news .news-col__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.page-news .news-col__num {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold-500);
}
.page-news .news-col__title {
  margin: 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(22px, 2.5vw, 30px);
  color: var(--ink-900);
  letter-spacing: -.005em;
}
.page-news .news-col__desc {
  margin: 0;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--brown-900);
}
.page-news .news-col__media {
  margin: 0 0 24px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.page-news .news-col__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ============ 条目列表 ============ */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hairline-strong);
}
.page-news .news-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0 20px;
}
.page-news .news-item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background-image: var(--news-dash);
}
.page-news .news-item__num {
  font-size: 12.5px;
  letter-spacing: .07em;
  color: var(--gold-500);
}
.page-news .news-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink-900);
  overflow-wrap: break-word;
}
.page-news .news-item__text {
  margin: 0;
  max-width: 52em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate-600);
  overflow-wrap: break-word;
}
.page-news .news-item__time {
  font-size: 12px;
  color: var(--slate-600);
  white-space: nowrap;
}
.page-news .news-item::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 22px;
  bottom: 24px;
  width: 2px;
  background: var(--gold-500);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .18s var(--ease);
}
.page-news .news-item:hover::before {
  transform: scaleY(1);
}

/* ============ 专题系列 ============ */
.page-news .news-series__head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 46px);
}
.page-news .news-series__head .eyebrow {
  margin: 0;
  color: var(--gold-500);
}
.page-news .news-series__head h2 {
  margin: 10px 0 12px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.35;
  color: var(--ink-900);
}
.page-news .news-series__head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--brown-900);
}
.page-news .news-series__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-news .news-series__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  background: var(--cream-050);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
}
.page-news .news-series__card:hover {
  border-color: var(--gold-500);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.page-news .news-series__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold-500);
}
.page-news .news-series__card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink-900);
}
.page-news .news-series__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate-600);
}
.page-news .news-series__link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 4px;
  font-size: 13.5px;
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.page-news .news-series__link:hover {
  color: var(--ink-900);
  border-bottom-color: var(--gold-500);
}
.page-news .news-series__figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.page-news .news-series__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 6.8;
  object-fit: cover;
}

/* ============ 回看与下一步 ============ */
.page-news .news-back__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}
.page-news .news-back__grid .eyebrow {
  margin: 0;
  color: var(--gold-500);
}
.page-news .news-back__grid h2 {
  margin: 10px 0 14px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.35;
  color: var(--ink-900);
}
.page-news .news-back__grid p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--brown-900);
}
.page-news .news-back__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hairline-strong);
}
.page-news .news-back__steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--hairline-strong);
  font-size: 15px;
  line-height: 1.72;
  color: var(--brown-900);
}
.page-news .news-back__steps .mono {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold-500);
}
.page-news .news-back__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--hairline);
}

/* ============ 桌面端增强 ============ */
@media (min-width: 720px) {
  .page-news .news-item {
    grid-template-columns: var(--news-row-num) minmax(0, 1fr) auto;
    gap: 20px;
    align-items: baseline;
    padding: 20px 0 22px;
  }
  .page-news .news-item__time {
    justify-self: end;
  }
  .page-news .news-series__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-news .news-back__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }
}

@media (min-width: 900px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-aside-w) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }
  .page-news .news-aside {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1100px) {
  .page-news {
    --news-row-num: 96px;
  }
  .page-news .news-series__figure {
    margin-top: clamp(36px, 4.5vw, 56px);
  }
  .page-news .news-series__figure img {
    aspect-ratio: 16 / 8;
  }
}

/* 小屏保底：避免横向溢出 */
@media (max-width: 480px) {
  .page-news .news-hero__overlay {
    gap: 10px;
  }
  .page-news .news-item::before {
    left: -10px;
  }
  .page-news .news-back__steps li {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
  }
}