.page-news{
  padding-bottom: clamp(56px, 9vw, 108px);
  color: var(--silver);
  background:
    radial-gradient(760px 420px at 88% -6%, rgba(122,108,255,.14), transparent 70%),
    radial-gradient(560px 380px at 4% 18%, rgba(41,224,200,.07), transparent 72%);
}

.page-news h2,
.page-news h3{
  font-family: var(--font-head);
  letter-spacing: -.015em;
}

.page-news a{
  color: var(--pulse);
  text-decoration: none;
}

.page-news a:hover{
  text-decoration: underline;
}

.page-news .breadcrumb{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 28px);
  font-size: 13px;
  color: var(--muted);
}

.page-news .breadcrumb a{
  color: var(--pulse);
}

.page-news .crumb-sep{
  color: var(--line-strong);
}

/* 首屏 */
.page-news .news-hero{
  padding-top: clamp(22px, 4vw, 40px);
}

.page-news .news-hero__grid{
  display: grid;
  gap: clamp(20px, 4vw, 40px);
  align-items: end;
}

.page-news .news-hero__pulse{
  position: relative;
  padding: 18px 20px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(14,23,48,.92), rgba(7,11,24,.58));
  overflow: hidden;
}

.page-news .news-hero__pulse::after{
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid rgba(41,224,200,.34);
  border-radius: inherit;
  pointer-events: none;
  animation: news-breathe 5.5s var(--ease) infinite;
}

@keyframes news-breathe{
  0%, 100%{ opacity: .3; }
  50%{ opacity: .85; }
}

.page-news .news-hero__pulse .eyebrow{
  margin: 0 0 6px;
}

.page-news .news-hero__v{
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(72px, 15vw, 132px);
  line-height: .88;
  letter-spacing: -.05em;
  color: var(--silver);
  text-shadow: 0 0 44px rgba(41,224,200,.28);
}

.page-news .news-hero__stamp{
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-news .news-hero__body h1{
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: clamp(29px, 5.4vw, 54px);
  line-height: 1.07;
  letter-spacing: -.022em;
  color: var(--silver);
}

.page-news .news-hero__lead{
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: rgba(201,212,230,.84);
}

.page-news .news-hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-news .news-hero__figure{
  margin: clamp(24px, 4vw, 40px) 0 0;
}

.page-news .news-hero__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  object-fit: cover;
}

.page-news .news-hero__figure figcaption{
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* 通用小节头 */
.page-news .sec-head{
  max-width: 72ch;
}

.page-news .sec-head .eyebrow{
  margin: 0 0 8px;
}

.page-news .sec-head h2{
  margin: 0 0 10px;
  font-size: clamp(24px, 3.8vw, 38px);
  line-height: 1.16;
  color: var(--silver);
}

.page-news .sec-head p{
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* 更新条目时间轴 */
.page-news .news-feed{
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .timeline{
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
}

.page-news .tl-item{
  position: relative;
  padding-left: 36px;
  padding-bottom: 18px;
}

.page-news .tl-item::before{
  content: "";
  position: absolute;
  left: 9px;
  top: 22px;
  bottom: -6px;
  width: 2px;
  background: linear-gradient(180deg, rgba(41,224,200,.5), rgba(122,108,255,.24), rgba(201,212,230,.05));
}

.page-news .tl-item:last-child::before{
  display: none;
}

.page-news .tl-node{
  position: absolute;
  left: 2px;
  top: 15px;
  width: 16px;
  height: 16px;
  border: 2px solid var(--pulse);
  border-radius: 50%;
  background: var(--void);
  box-shadow: 0 0 0 4px rgba(41,224,200,.09);
}

.page-news .tl-card{
  min-width: 0;
  padding: clamp(15px, 2.6vw, 22px);
}

.page-news .tl-card__meta{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.page-news .tl-card__time{
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
}

.page-news .tl-card__title{
  margin: 0 0 8px;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.36;
  color: var(--silver);
}

.page-news .tl-card__text{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(201,212,230,.8);
}

.page-news .tl-expand{
  margin-top: 14px;
}

.page-news .tl-extra{
  margin-top: 14px;
  padding: 14px 16px;
  border-left: 2px solid var(--violet);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(122,108,255,.08);
}

.page-news .tl-extra p{
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(201,212,230,.82);
}

.page-news .timeline-figure{
  margin: clamp(28px, 4vw, 44px) 0 0;
}

.page-news .timeline-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-news .timeline-figure figcaption{
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}

/* 归档索引 */
.page-news .news-archive{
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .archive-figure{
  margin: clamp(22px, 3vw, 32px) 0 20px;
}

.page-news .archive-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-news .arch-group{
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(170deg, rgba(14,23,48,.88), rgba(7,11,24,.55));
  overflow: hidden;
}

.page-news .arch-group + .arch-group{
  margin-top: 14px;
}

.page-news .arch-toggle{
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 18px;
  border: 0;
  background: none;
  color: var(--silver);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-news .arch-toggle:hover{
  background: rgba(41,224,200,.05);
}

.page-news .arch-range{
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--amber);
}

.page-news .arch-toggle__label{
  font-size: 13.5px;
  color: var(--muted);
}

.page-news .arch-chevron{
  margin-left: auto;
  color: var(--muted);
  transition: transform .3s var(--ease);
}

.page-news .arch-toggle[aria-expanded="false"] .arch-chevron{
  transform: rotate(-90deg);
}

.page-news .arch-panel{
  padding: 0 16px 16px;
}

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

.page-news .arch-item{
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(7,11,24,.52);
}

.page-news .arch-v{
  font-size: 17px;
  letter-spacing: .03em;
  color: var(--amber);
}

.page-news .arch-item h3{
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--silver);
}

.page-news .arch-item p{
  margin: 0 0 8px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(201,212,230,.76);
}

.page-news .arch-item a{
  font-size: 13px;
  color: var(--pulse);
}

/* 渠道观察 */
.page-news .news-observe{
  position: relative;
  margin-top: clamp(56px, 8vw, 96px);
  overflow: hidden;
}

.page-news .observe-bg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .55;
  pointer-events: none;
}

.page-news .news-observe .sec-head,
.page-news .news-observe .observe-figure,
.page-news .news-observe .observe-cards{
  position: relative;
  z-index: 1;
}

.page-news .observe-figure{
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-news .observe-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  object-fit: cover;
}

.page-news .observe-figure figcaption{
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-news .observe-cards{
  margin-top: 22px;
}

.page-news .observe-card{
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 18px;
}

.page-news .observe-card .tag{
  align-self: flex-start;
  margin-bottom: 12px;
}

.page-news .observe-card h3{
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.42;
  color: var(--silver);
}

.page-news .observe-card p{
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(201,212,230,.78);
}

.page-news .observe-card a{
  margin-top: auto;
  font-size: 13px;
  color: var(--pulse);
}

/* 订阅与调取 */
.page-news .news-contact{
  margin-top: clamp(56px, 8vw, 96px);
}

.page-news .news-contact__band{
  padding: clamp(22px, 4vw, 42px);
  border: 1px solid rgba(255,122,61,.3);
  border-radius: var(--r-xl);
  background:
    linear-gradient(150deg, rgba(14,23,48,.96), rgba(7,11,24,.9)),
    radial-gradient(520px 220px at 88% 0%, rgba(255,122,61,.14), transparent 70%);
}

.page-news .news-contact__band .eyebrow{
  margin: 0 0 8px;
}

.page-news .news-contact__band h2{
  margin: 0 0 12px;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--silver);
}

.page-news .news-contact__lead{
  max-width: 66ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.86;
  color: rgba(201,212,230,.82);
}

.page-news .news-contact__rows{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 12px;
}

.page-news .news-contact__note{
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.78;
  color: var(--muted);
}

/* 响应式 */
@media (min-width: 640px){
  .page-news .arch-item{
    grid-template-columns: 78px minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px){
  .page-news .news-hero__grid{
    grid-template-columns: minmax(250px, .74fr) minmax(0, 1.52fr);
  }

  .page-news .tl-item{
    padding-left: 54px;
  }

  .page-news .tl-item::before{
    left: 14px;
  }

  .page-news .tl-node{
    left: 7px;
  }
}

@media (max-width: 420px){
  .page-news .news-hero__v{
    font-size: 64px;
  }

  .page-news .tl-card__time{
    width: 100%;
    margin-left: 0;
  }
}

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

  .page-news .arch-chevron{
    transition: none;
  }
}
<<<END>>>