/* ============================================================
   BSPORTS · 动态专栏 /articles/
   页面作用域：.page-news
   ============================================================ */

.page-news {
  --news-rail: 236px;
  --news-panel: 300px;
  position: relative;
  background: var(--c-ink);
  color: var(--c-text);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--bd);
  background:
    radial-gradient(780px 420px at 92% -20%, rgba(255, 107, 26, .16), transparent 68%),
    radial-gradient(700px 380px at 2% 118%, rgba(124, 77, 255, .2), transparent 70%),
    var(--c-ink);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 58, 82, .34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 58, 82, .34) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 4vw, 44px) 0 clamp(30px, 5vw, 56px);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 38px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-news .news-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 6.2vw, 60px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--c-text);
}

.page-news .news-hero__title em {
  font-style: normal;
  color: var(--c-cyan);
  text-shadow: var(--glow-cyan);
}

.page-news .news-hero__lede {
  max-width: 620px;
  margin: 18px 0 0;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--c-text-soft);
}

.page-news .hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .hero-fact {
  padding: 2px 0 2px 12px;
  border-left: 3px solid var(--c-cyan);
}

.page-news .hero-fact b {
  display: block;
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-cyan);
  text-shadow: var(--glow-cyan);
}

.page-news .hero-fact span {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--c-muted);
}

.page-news .news-hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  box-shadow: 10px 10px 0 rgba(0, 229, 255, .09);
}

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

.page-news .news-hero__figure::after {
  content: "";
  position: absolute;
  right: -7px;
  bottom: -7px;
  width: 52px;
  height: 52px;
  border-right: 3px solid var(--c-orange);
  border-bottom: 3px solid var(--c-orange);
  pointer-events: none;
}

@media (min-width: 960px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: end;
  }
}

/* ---------- 三栏主体 ---------- */

.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding: clamp(26px, 4vw, 46px) 0 clamp(48px, 8vw, 88px);
}

.page-news .news-rail,
.page-news .news-stream,
.page-news .news-pulse {
  min-width: 0;
}

/* 左侧索引 */

.page-news .news-rail {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-news .rail-block {
  padding-left: 14px;
  border-left: 2px solid var(--c-line);
}

.page-news .rail-block .eyebrow {
  margin: 0;
}

.page-news .rail-index {
  display: grid;
  gap: 2px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .rail-index a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 2px;
  border-bottom: 1px solid rgba(42, 58, 82, .75);
  color: var(--c-text-soft);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-news .rail-index a:hover,
.page-news .rail-index a:focus-visible {
  padding-left: 6px;
  color: var(--c-cyan);
}

.page-news .rail-index b {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--c-muted);
}

.page-news .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-news .chip__count {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: .78;
}

/* 中央文章流 */

.page-news .news-stream {
  display: grid;
  gap: clamp(34px, 5vw, 58px);
}

.page-news .stream-block {
  scroll-margin-top: calc(var(--header-h) + 22px);
}

.page-news .block-head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-line);
}

.page-news .block-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 64px;
  height: 2px;
  background: var(--c-cyan);
  box-shadow: var(--glow-cyan);
}

.page-news .block-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 27px);
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--c-text);
}

.page-news .post-list {
  display: grid;
  gap: 14px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .post-list > li {
  display: block;
  min-width: 0;
}

.page-news .post {
  position: relative;
  padding: 16px 18px 18px;
  border: var(--bd);
  background: var(--c-card);
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-news .post::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--c-violet);
  opacity: .55;
  transition: opacity var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .post:hover {
  transform: translate(-3px, -3px);
  border-color: var(--c-cyan);
  box-shadow: var(--shadow-hard);
}

.page-news .post:hover::before {
  background: var(--c-cyan);
  opacity: 1;
}

.page-news .post__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
}

.page-news .post__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--c-muted);
}

.page-news .post__title {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-text);
}

.page-news .post__sum {
  max-width: 700px;
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-text-soft);
}

.page-news .post__more {
  margin-top: 12px;
  padding-top: 9px;
  border-top: 1px dashed rgba(42, 58, 82, .95);
}

.page-news .post__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-cyan);
  cursor: pointer;
  list-style: none;
}

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

.page-news .post__more summary::before {
  content: "+";
  font-size: 14px;
  line-height: 1;
}

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

.page-news .post__more summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-news .post__more p {
  max-width: 700px;
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--c-muted);
}

/* 列表配图 */

.page-news .post-figure {
  margin: 18px 0 0;
  aspect-ratio: 3 / 2;
}

.page-news .weekend-figure {
  margin: 18px 0 0;
  aspect-ratio: 8 / 3;
}

.page-news .post-figure img,
.page-news .weekend-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 右侧粘性面板 */

.page-news .news-pulse {
  border: var(--bd);
  background: var(--c-panel);
  padding: 16px 16px 18px;
}

.page-news .news-pulse__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 11px;
  border-bottom: 2px solid var(--c-line);
}

.page-news .news-pulse__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--c-text);
}

.page-news .news-pulse__title::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--c-orange);
  box-shadow: var(--glow-orange);
  animation: bs-news-blink 1.8s ease-in-out infinite;
}

@keyframes bs-news-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .22; }
}

.page-news .pulse-feed {
  display: grid;
  margin: 15px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .pulse-item {
  position: relative;
  padding: 0 0 15px 18px;
  border-left: 2px solid var(--c-line);
}

.page-news .pulse-item:last-child {
  padding-bottom: 0;
}

.page-news .pulse-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 4px;
  width: 8px;
  height: 8px;
  background: var(--c-ink);
  border: 2px solid var(--c-cyan);
}

.page-news .pulse-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.page-news .pulse-item__time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--c-muted);
}

.page-news .pulse-item__txt {
  margin: 5px 0 0;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--c-text-soft);
}

.page-news .pulse-foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-size: 13px;
  line-height: 1.68;
  color: var(--c-muted);
}

.page-news .pulse-foot a {
  color: var(--c-cyan);
}

/* 筛选隐藏态 */

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

/* ---------- 底部行动区 ---------- */

.page-news .cta-band {
  position: relative;
  border-top: var(--bd);
  background:
    radial-gradient(620px 300px at 12% 130%, rgba(0, 229, 255, .14), transparent 72%),
    radial-gradient(520px 280px at 92% -20%, rgba(255, 107, 26, .16), transparent 70%),
    var(--c-panel);
}

.page-news .cta-band__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: clamp(32px, 5vw, 60px) 0 clamp(36px, 6vw, 68px);
}

.page-news .cta-band__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--c-text);
}

.page-news .cta-band__text {
  max-width: 620px;
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--c-text-soft);
}

.page-news .cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: end;
}

@media (min-width: 860px) {
  .page-news .cta-band__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

/* ---------- 响应式栅格 ---------- */

@media (min-width: 900px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 32px;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
  }

  .page-news .news-pulse {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1180px) {
  .page-news .news-layout {
    grid-template-columns: var(--news-rail) minmax(0, 1fr) var(--news-panel);
    gap: 34px;
  }

  .page-news .news-pulse {
    grid-column: auto;
    position: sticky;
    top: calc(var(--header-h) + 20px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 40px);
    overflow-y: auto;
  }
}

@media (max-width: 520px) {
  .page-news .post {
    padding: 14px 14px 16px;
  }

  .page-news .post__title {
    font-size: 16px;
  }

  .page-news .hero-facts {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .news-hero__figure::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-pulse__title::before {
    animation: none;
  }

  .page-news .post,
  .page-news .rail-index a {
    transition: none;
  }

  .page-news .post:hover {
    transform: none;
  }
}
<<<END>>>