.page-news {
  position: relative;
}

.page-news .breadcrumb {
  margin: clamp(20px, 4vw, 34px) 0 0;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(28px, 5vw, 48px);
}

.page-news .news-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-news .news-hero-grid > * {
  min-width: 0;
}

.page-news .news-hero-copy h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-news .news-hero-copy .lede {
  margin-top: 18px;
  max-width: 42ch;
}

.page-news .news-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 24px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .news-hero-meta .chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-news .news-hero-visual {
  position: relative;
  min-height: 250px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 76% 16%, rgba(255, 107, 44, 0.30), transparent 55%),
    radial-gradient(circle at 14% 86%, rgba(139, 92, 246, 0.34), transparent 58%),
    linear-gradient(155deg, #0B1533 0%, #050A1A 78%);
  overflow: hidden;
}

.page-news .news-hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 58, 102, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 58, 102, 0.55) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.55;
  -webkit-mask-image: radial-gradient(circle at 50% 48%, #000 30%, transparent 76%);
  mask-image: radial-gradient(circle at 50% 48%, #000 30%, transparent 76%);
}

.page-news .news-hero-visual .ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--line);
}

.page-news .news-hero-visual .ring--1 {
  width: 62%;
  aspect-ratio: 1;
  top: 19%;
  left: 19%;
  border-color: rgba(139, 92, 246, 0.45);
}

.page-news .news-hero-visual .ring--2 {
  width: 36%;
  aspect-ratio: 1;
  top: 32%;
  left: 32%;
  border-color: rgba(255, 107, 44, 0.55);
}

.page-news .news-hero-visual .node {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 12px rgba(57, 255, 136, 0.8);
}

.page-news .news-hero-visual .node--a {
  top: 20%;
  left: 21%;
}

.page-news .news-hero-visual .node--b {
  bottom: 27%;
  right: 23%;
  background: var(--orange);
  box-shadow: 0 0 12px rgba(255, 107, 44, 0.8);
}

.page-news .news-hero-visual .node--c {
  top: 50%;
  right: 14%;
  background: var(--violet);
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.8);
}

.page-news .hero-visual-label {
  position: absolute;
  bottom: 16px;
  left: 20px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

/* ---------- 头条 ---------- */
.page-news .headline-card {
  display: grid;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(18, 34, 77, 0.95), rgba(11, 21, 51, 0.92));
  overflow: hidden;
}

.page-news .headline-media {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #12224D, #050A1A);
  overflow: hidden;
}

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

.page-news .headline-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 107, 44, 0.22) 50%, transparent 60%);
  pointer-events: none;
}

.page-news .headline-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  padding: clamp(22px, 4vw, 40px);
}

.page-news .headline-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-news .headline-body h2 {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 33px);
  line-height: 1.26;
  letter-spacing: -0.01em;
}

.page-news .headline-body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 46ch;
}

.page-news .headline-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  width: 100%;
}

.page-news .headline-facts li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.page-news .headline-facts .mono {
  flex: 0 0 auto;
  min-width: 3.6em;
  color: var(--orange-hi);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ---------- 更新流 ---------- */
.page-news .news-stream {
  padding-top: clamp(32px, 5vw, 52px);
}

.page-news .stream-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 20px;
  margin-bottom: 18px;
}

.page-news .stream-head h2 {
  margin: 6px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
}

.page-news .stream-count {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .filter-bar {
  margin-bottom: 10px;
}

.page-news .stream-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .stream-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .stream-item::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: transparent;
  transition: background 180ms var(--ease-out);
}

.page-news .stream-item:hover::before,
.page-news .stream-item:focus-within::before {
  background: var(--orange);
}

.page-news .stream-item[hidden] {
  display: none;
}

.page-news .stream-marker {
  position: relative;
  z-index: 1;
  align-self: start;
  margin-top: 2px;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(11, 21, 51, 0.95);
  font-size: 12px;
  color: var(--muted);
  transition: color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.page-news .stream-item:hover .stream-marker {
  color: var(--orange);
  border-color: rgba(255, 107, 44, 0.6);
}

.page-news .stream-body {
  min-width: 0;
}

.page-news .stream-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-news .stream-body h3 {
  margin: 10px 0 8px;
  font-size: clamp(17px, 2.3vw, 21px);
  line-height: 1.42;
}

.page-news .stream-body p {
  margin: 0;
  font-size: 14.6px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 62ch;
}

.page-news .stream-figure {
  margin: 16px 0 0;
  max-width: 420px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(135deg, #12224D, #050A1A);
}

.page-news .stream-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  max-width: 100%;
}

.page-news .stream-more {
  margin-top: 12px;
}

.page-news .stream-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-size: 13.5px;
  color: var(--orange-hi);
}

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

.page-news .stream-more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
}

.page-news .stream-more[open] summary::before {
  content: "−";
}

.page-news .stream-more p {
  margin-top: 10px;
  padding-left: 14px;
  border-left: 2px solid rgba(139, 92, 246, 0.5);
}

.page-news .stream-empty {
  margin: 24px 0 0;
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px dashed var(--line);
  color: var(--muted);
  font-size: 14px;
}

.page-news .stream-empty[hidden] {
  display: none;
}

/* ---------- 系列 ---------- */
.page-news .news-series {
  padding-top: clamp(36px, 5.5vw, 60px);
}

.page-news .news-series .section-head .lede {
  margin-top: 12px;
  max-width: 54ch;
}

.page-news .series-band {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-news .series-item {
  position: relative;
  padding: clamp(20px, 3vw, 26px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(18, 34, 77, 0.92), rgba(11, 21, 51, 0.9));
  overflow: hidden;
  transition: transform 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.page-news .series-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 107, 44, 0.55);
}

.page-news .series-item::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.32), transparent 70%);
  pointer-events: none;
}

.page-news .series-item:nth-child(2)::after {
  background: radial-gradient(circle, rgba(255, 107, 44, 0.32), transparent 70%);
}

.page-news .series-item:nth-child(3)::after {
  background: radial-gradient(circle, rgba(57, 255, 136, 0.26), transparent 70%);
}

.page-news .series-tag {
  position: relative;
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--violet);
}

.page-news .series-item h3 {
  position: relative;
  margin: 10px 0 10px;
  font-size: clamp(19px, 2.4vw, 22px);
  line-height: 1.35;
}

.page-news .series-item p:last-of-type {
  position: relative;
  margin: 0;
  font-size: 14.4px;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .series-figure {
  margin: 22px 0 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  background: linear-gradient(135deg, #0B1533, #050A1A);
}

.page-news .series-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  max-width: 100%;
}

.page-news .series-figure .media-cap {
  padding: 12px 16px;
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 节奏与联系 ---------- */
.page-news .news-cadence {
  padding-top: clamp(36px, 5.5vw, 60px);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-news .cadence-grid {
  display: grid;
  gap: 18px;
}

.page-news .cadence-card {
  padding: clamp(22px, 4vw, 38px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, rgba(18, 34, 77, 0.95), rgba(5, 10, 26, 0.94));
}

.page-news .cadence-card h2 {
  margin: 8px 0 0;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.24;
}

.page-news .cadence-card > p {
  margin: 14px 0 0;
  font-size: 14.8px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 46ch;
}

.page-news .cadence-stats {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .cadence-stats li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: rgba(18, 34, 77, 0.6);
  border: 1px solid rgba(42, 58, 102, 0.8);
}

.page-news .stat-num {
  font-size: 26px;
  line-height: 1;
  color: var(--orange);
  font-weight: 700;
  min-width: 1.4em;
}

.page-news .stat-label {
  font-size: 13.6px;
  line-height: 1.65;
  color: var(--muted);
}

.page-news .cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-news .cadence-side {
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(139, 92, 246, 0.4);
  background:
    radial-gradient(circle at 88% 8%, rgba(139, 92, 246, 0.28), transparent 58%),
    linear-gradient(165deg, rgba(11, 21, 51, 0.96), rgba(5, 10, 26, 0.96));
}

.page-news .cadence-side h3 {
  margin: 0 0 12px;
  font-size: clamp(19px, 2.4vw, 22px);
  line-height: 1.35;
}

.page-news .cadence-side > p {
  margin: 0;
  font-size: 14.4px;
  line-height: 1.78;
  color: var(--muted);
}

.page-news .cadence-contact {
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .cadence-contact > div {
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(42, 58, 102, 0.85);
}

.page-news .cadence-contact > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .cadence-contact dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-news .cadence-contact dd {
  margin: 6px 0 0;
  font-size: 14.4px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-news .cadence-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-news .back-top-wrap {
  margin: 24px 0 0;
  text-align: right;
}

.page-news .back-top {
  display: inline-block;
  padding: 10px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms var(--ease-out), border-color 180ms var(--ease-out);
}

.page-news .back-top:hover {
  color: var(--orange);
  border-color: rgba(255, 107, 44, 0.6);
}

/* ---------- 窄屏细节 ---------- */
@media (max-width: 519px) {
  .page-news .headline-facts li {
    flex-direction: column;
    gap: 4px;
  }

  .page-news .cadence-actions .btn,
  .page-news .cadence-links .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 760px) {
  .page-news .news-hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-news .news-hero-visual {
    min-height: 340px;
  }

  .page-news .stream-list::before {
    content: "";
    position: absolute;
    left: 19px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(var(--line), rgba(42, 58, 102, 0.15));
  }

  .page-news .stream-item {
    grid-template-columns: 56px 1fr;
    gap: 22px;
    padding: 26px 0;
  }

  .page-news .stream-marker {
    width: 38px;
    height: 38px;
    margin-left: 1px;
  }

  .page-news .series-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-news .headline-card {
    grid-template-columns: 1.02fr 1fr;
    align-items: stretch;
  }

  .page-news .headline-media {
    aspect-ratio: auto;
    min-height: 380px;
    height: 100%;
  }

  .page-news .headline-body {
    justify-content: center;
  }

  .page-news .cadence-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-news .news-hero-copy .lede {
    max-width: 40ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .series-item,
  .page-news .stream-marker,
  .page-news .stream-item::before,
  .page-news .back-top {
    transition: none;
  }

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