.page-news {
  --news-pad: clamp(16px, 3vw, 26px);
  --news-line: rgba(18, 70, 110, 0.14);
  --news-line-soft: rgba(18, 70, 110, 0.08);
  background: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(18px, 3.2vw, 34px) 0 clamp(26px, 4vw, 46px);
  background:
    radial-gradient(90% 70% at 100% 0%, rgba(35, 227, 198, 0.16), transparent 62%),
    radial-gradient(70% 60% at 0% 100%, rgba(255, 138, 61, 0.12), transparent 58%),
    var(--paper);
  overflow: hidden;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--deep) 0 2px, transparent 2px 12px);
  opacity: 0.32;
}

.page-news .news-hero .yx-breadcrumb {
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-news .news-hero__head {
  max-width: 860px;
}

.page-news .news-hero__head .yx-title--xl {
  margin: 12px 0 14px;
  max-width: 20ch;
}

.page-news .news-hero__head .yx-lead {
  max-width: 62ch;
  margin: 0;
}

.page-news .news-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .news-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 118px;
  padding: 12px 18px;
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--news-line);
}

.page-news .news-hero__facts .yx-mono {
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--deep);
  letter-spacing: 0.01em;
}

.page-news .news-hero__facts small {
  font-size: 0.78rem;
  line-height: 1.4;
  color: var(--grayblue);
}

.page-news .news-hero__media {
  margin-top: clamp(22px, 3.4vw, 36px);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(140deg, var(--deep), var(--cyan-deep));
  box-shadow: 0 18px 40px -28px rgba(12, 29, 46, 0.55);
}

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

/* ---------- 主体两栏 ---------- */
.page-news .news-body {
  padding: clamp(28px, 4.4vw, 56px) 0 clamp(44px, 6vw, 84px);
  background: var(--paper);
}

.page-news .news-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 42px);
}

/* ---------- 侧栏 ---------- */
.page-news .news-side__inner {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-news .news-side__block .yx-eyebrow {
  margin-bottom: 12px;
}

.page-news .news-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--news-line);
  background: var(--card);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 0.86rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.page-news .news-chip b {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--grayblue);
}

.page-news .news-chip:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-news .news-chip[aria-pressed="true"] {
  background: var(--grad);
  border-color: transparent;
  color: #ffffff;
}

.page-news .news-chip[aria-pressed="true"] b {
  color: rgba(255, 255, 255, 0.88);
}

.page-news .news-side__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  border-top: 1px dashed var(--news-line);
  padding-top: 14px;
  scrollbar-width: thin;
}

.page-news .news-side__nav a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--r-pill);
  background: var(--card);
  border: 1px solid var(--news-line-soft);
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-news .news-side__nav a:hover {
  background: var(--mist);
  border-color: var(--cyan);
  color: var(--deep);
}

.page-news .news-side__nav .yx-mono {
  font-size: 0.72rem;
  color: var(--cyan-deep);
}

/* ---------- 条目流 ---------- */
.page-news .news-group {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-news .news-group + .news-group {
  margin-top: clamp(36px, 5vw, 68px);
}

.page-news .news-group__head {
  padding-left: 18px;
  border-left: 2px solid var(--cyan);
  margin-bottom: 18px;
}

.page-news .news-group__head .yx-title--md {
  margin: 6px 0 0;
}

.page-news .news-group__desc {
  margin: 8px 0 0;
  max-width: 56ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--grayblue);
}

.page-news .news-figure {
  margin: 0 0 18px;
}

.page-news .news-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  object-fit: cover;
  background: linear-gradient(140deg, var(--deep), var(--cyan-deep));
}

.page-news .news-figure figcaption {
  margin-top: 9px;
  padding-left: 2px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--grayblue);
}

.page-news .news-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-bottom: 18px;
  border-radius: var(--r-md);
  overflow: hidden;
  background: rgba(35, 227, 198, 0.25);
}

.page-news .news-band > div {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 16px 18px;
  background: var(--indigo);
}

.page-news .news-band .yx-mono {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-news .news-band small {
  font-size: 0.78rem;
  line-height: 1.5;
  color: rgba(245, 242, 234, 0.78);
}

.page-news .news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news .news-item {
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--news-line-soft);
  overflow: hidden;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-news .news-item:hover {
  border-color: rgba(35, 227, 198, 0.6);
  transform: translateY(-2px);
}

.page-news .news-item.is-hidden {
  display: none;
}

.page-news .news-group:not(:has(.news-item:not(.is-hidden))) {
  display: none;
}

.page-news .news-item__details > summary {
  list-style: none;
}

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

.page-news .news-item__summary {
  display: block;
  padding: 16px 18px;
  cursor: pointer;
}

.page-news .news-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 9px;
}

.page-news .news-item__title {
  margin: 0 0 6px;
  font-size: 1.03rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .news-item__lead {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.72;
  color: var(--grayblue);
}

.page-news .news-item__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cyan-deep);
}

.page-news .news-item__toggle::after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.18s ease;
}

.page-news .news-item__details[open] .news-item__toggle::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-news .news-item__body {
  margin: 0 18px;
  padding: 14px 0 18px;
  border-top: 1px dashed var(--news-line);
}

.page-news .news-item__body p {
  margin: 0;
  font-size: 0.91rem;
  line-height: 1.78;
  color: var(--ink);
}

.page-news .news-item__body a {
  display: inline-block;
  margin-top: 11px;
  padding-bottom: 1px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--deep);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-news .news-item__body a:hover {
  color: var(--cyan-deep);
  border-color: var(--cyan-deep);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px) {
  .page-news .news-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-news .news-body__grid {
    grid-template-columns: 264px minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-side__inner {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    gap: 22px;
  }

  .page-news .news-side__nav {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-top: 16px;
  }

  .page-news .news-side__nav a {
    border-color: transparent;
    background: transparent;
    border-radius: var(--r-sm);
    padding: 9px 10px;
  }

  .page-news .news-side__nav a:hover {
    background: var(--mist);
    border-color: transparent;
  }

  .page-news .news-item__summary {
    padding: 18px 22px;
  }

  .page-news .news-item__body {
    margin: 0 22px;
  }

  .page-news .news-item__lead,
  .page-news .news-item__body p {
    max-width: 68ch;
  }
}

@media (min-width: 1180px) {
  .page-news .news-body__grid {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-chip,
  .page-news .news-item,
  .page-news .news-item__toggle::after,
  .page-news .news-side__nav a {
    transition: none;
  }

  .page-news .news-chip:hover,
  .page-news .news-item:hover {
    transform: none;
  }
}