.page-news {
  background: var(--ink);
  color: var(--text);
  overflow-x: clip;
}

/* ===== 首屏 ===== */
.page-news .news-hero {
  position: relative;
  padding: clamp(22px, 5vw, 52px) 0 clamp(16px, 3vw, 28px);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: min(640px, 78vw);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 55% 45%, rgba(0, 229, 255, .16), rgba(0, 229, 255, 0) 62%);
  pointer-events: none;
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 48px);
  align-items: end;
  margin-top: clamp(14px, 2.5vw, 26px);
  position: relative;
}

.page-news .news-hero__kicker {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-news .news-hero__title {
  margin: 0 0 18px;
  max-width: 20ch;
  font-size: clamp(30px, 6.6vw, 58px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--cream);
  text-wrap: balance;
}

.page-news .news-hero__text {
  margin: 0;
  max-width: 56ch;
  font-size: 16.5px;
  line-height: 1.85;
  letter-spacing: .02em;
  color: var(--text-soft);
}

.page-news .news-hero__ticks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  margin: 0;
}

.page-news .news-hero__ticks dt,
.page-news .news-hero__ticks dd {
  margin: 0;
}

.page-news .tick {
  min-width: 0;
  padding-left: 12px;
  border-left: 2px solid var(--line-cyan);
}

.page-news .tick__k {
  margin-bottom: 4px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-news .tick__v {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.2;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

/* ===== 粘性索引 ===== */
.page-news .news-index {
  position: sticky;
  top: 0;
  z-index: 6;
  background: rgba(6, 20, 16, .88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-index__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 0;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .news-index__inner::-webkit-scrollbar { display: none; }

.page-news .news-index__key {
  flex: 0 0 auto;
  color: var(--cyan);
}

.page-news .news-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-index__list a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 15px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  color: var(--text-soft);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .news-index__list a:hover,
.page-news .news-index__list a:focus-visible {
  color: var(--cyan);
  border-color: var(--line-cyan);
  background: rgba(0, 229, 255, .07);
}

/* ===== 置顶块 ===== */
.page-news .spotlight__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 22px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-news .spot__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3vw, 28px);
  padding-left: calc(clamp(18px, 3vw, 28px) + 22px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(155deg, rgba(46, 74, 60, .58), rgba(11, 31, 26, .92) 72%);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .spot__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  opacity: .85;
}

.page-news .spot__card:hover {
  border-color: var(--line-cyan);
  transform: translateY(-3px);
}

.page-news .spot__tag {
  position: absolute;
  top: clamp(18px, 3vw, 28px);
  left: 12px;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--stone);
  transition: color var(--dur) var(--ease);
}

.page-news .spot__card:hover .spot__tag { color: var(--cyan); }

.page-news .spot__title {
  margin: 0;
  font-size: clamp(18px, 2.6vw, 23px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--cream);
}

.page-news .spot__text {
  flex: 1;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .spot__link {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .spot__link:hover,
.page-news .spot__link:focus-visible {
  color: var(--orange);
  border-color: var(--line-warm);
}

.page-news .spot__media {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}

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

/* ===== 分类筛选 ===== */
.page-news .filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(16px, 2.4vw, 24px) 0 4px;
}

.page-news .filter__tab {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(46, 74, 60, .34);
  color: var(--text-soft);
  font-size: 13px;
  letter-spacing: .06em;
  cursor: pointer;
  user-select: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .filter__tab:hover {
  color: var(--cyan);
  border-color: var(--line-cyan);
}

.page-news .filter__box:checked + .filter__tab {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--night);
  font-weight: 700;
}

.page-news .filter__box:focus-visible + .filter__tab {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-news:has(#f-channel:checked) .feed__item:not(.feed__item--channel),
.page-news:has(#f-data:checked) .feed__item:not(.feed__item--data),
.page-news:has(#f-manual:checked) .feed__item:not(.feed__item--manual),
.page-news:has(#f-terminal:checked) .feed__item:not(.feed__item--terminal) {
  display: none;
}

/* ===== 条目列表 ===== */
.page-news .feed {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .feed__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-bottom: 1px solid var(--line);
}

.page-news .feed__tag {
  writing-mode: vertical-rl;
  padding-left: 9px;
  border-left: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--stone);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .feed__item:hover .feed__tag {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-news .feed__main { min-width: 0; }

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

.page-news .stamp {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border: 1px solid var(--line-cyan);
  border-radius: 6px;
  background: rgba(0, 229, 255, .1);
  color: var(--cyan);
  font-size: 11.5px;
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
}

.page-news .stamp--warm {
  border-color: var(--line-warm);
  background: rgba(255, 107, 26, .12);
  color: var(--orange);
}

.page-news .stamp--yellow {
  border-color: rgba(245, 211, 0, .42);
  background: rgba(245, 211, 0, .12);
  color: var(--yellow);
}

.page-news .feed__title {
  margin: 0;
  font-size: clamp(16.5px, 2.3vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: .01em;
  color: var(--cream);
}

.page-news .feed__sum {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .feed__more { margin-top: 8px; }

.page-news .feed__more > summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  list-style: none;
  cursor: pointer;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan-deep);
  transition: color var(--dur) var(--ease);
}

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

.page-news .feed__more > summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

.page-news .feed__more[open] > summary::before { content: "–"; }

.page-news .feed__more > summary:hover,
.page-news .feed__more > summary:focus-visible { color: var(--cyan); }

.page-news .feed__more p {
  margin: 0 0 4px;
  max-width: 62ch;
  padding-left: 14px;
  border-left: 2px solid var(--line-cyan);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ===== 间歇留白图 ===== */
.page-news .news-gap {
  display: block;
  width: min(1240px, calc(100% - var(--gutter) * 2));
  margin: clamp(30px, 5vw, 58px) auto;
}

/* ===== 数据同步专题 ===== */
.page-news .sync__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 56px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  isolation: isolate;
}

.page-news .sync__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
}

.page-news .sync__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(115deg, rgba(6, 20, 16, .95) 0%, rgba(11, 31, 26, .82) 52%, rgba(46, 74, 60, .6) 100%);
}

.page-news .sync__panel::after {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  z-index: 2;
  width: 240px;
  height: 240px;
  transform: rotate(9deg);
  background: linear-gradient(135deg, rgba(255, 107, 26, .3), rgba(255, 107, 26, 0) 72%);
  pointer-events: none;
}

.page-news .sync__content {
  position: relative;
  z-index: 3;
}

.page-news .sync__text {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .sync__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  background: var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-news .sync__stat {
  padding: 16px 18px;
  background: rgba(6, 20, 16, .78);
}

.page-news .sync__stat dt {
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--stone);
}

.page-news .sync__stat dd {
  margin: 0;
  font-size: 13px;
  color: var(--text-soft);
}

.page-news .sync__num {
  margin-right: 4px;
  font-size: clamp(20px, 3vw, 26px);
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-news .sync__foot {
  margin: 22px 0 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-news .sync__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-news .sync__foot a:hover,
.page-news .sync__foot a:focus-visible {
  color: var(--orange);
  border-color: var(--line-warm);
}

/* ===== 排查手册专题 ===== */
.page-news .manual {
  background: linear-gradient(180deg, rgba(46, 74, 60, 0), rgba(46, 74, 60, .3) 45%, rgba(46, 74, 60, 0));
}

.page-news .manual__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 40px);
}

.page-news .manual__title {
  margin: 12px 0 14px;
  font-size: clamp(23px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--cream);
}

.page-news .manual__intro {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

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

.page-news .manual__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  border-left: 2px solid var(--line-cyan);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(46, 74, 60, .26);
}

.page-news .manual__no {
  padding-top: 2px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-news .manual__item h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--cream);
}

.page-news .manual__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-news .manual__side {
  align-self: start;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: rgba(6, 20, 16, .6);
}

.page-news .manual__side-list {
  margin: 14px 0 20px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-news .manual__side-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--text-soft);
}

.page-news .manual__side-list .mono {
  color: var(--cyan);
  font-size: 15px;
}

/* ===== 回看与订阅 ===== */
.page-news .replay__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 36px);
  align-items: center;
}

.page-news .replay__media { margin: 0; }

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

.page-news .replay__body h2 {
  margin: 12px 0 14px;
  font-size: clamp(23px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--cream);
}

.page-news .replay__body p {
  margin: 0 0 20px;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-news .replay__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 桌面栅格 ===== */
@media (min-width: 940px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(250px, .85fr);
  }

  .page-news .spotlight__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-news .spot__card:first-of-type { grid-column: span 5; }
  .page-news .spot__card:nth-of-type(2) { grid-column: span 4; }
  .page-news .spot__media { grid-column: span 3; }

  .page-news .manual__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, .72fr);
  }

  .page-news .replay__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 760px) {
  .page-news .sync__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-news .feed__item:nth-child(even) {
    margin-left: clamp(0px, 6vw, 92px);
  }
}

@media (max-width: 600px) {
  .page-news .news-hero__ticks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 12px;
  }

  .page-news .tick__v { font-size: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }

  .page-news .spot__card:hover { transform: none; }
}