.page-news {
  --news-line: rgba(138, 151, 168, 0.22);
  --news-line-strong: rgba(45, 226, 230, 0.38);
  --tag-version: #FFC857;
  --tag-express: #2DE2E6;
  --tag-team: #A8F7F7;
  --tag-guide: #FF8A80;
  --tag-data: #9AA9BD;
  background-color: var(--night-900);
  color: var(--paper-50);
}

.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-news .news-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.22;
  font-size: clamp(24px, 4.6vw, 40px);
  margin: 10px 0 14px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: calc(var(--header-h) + 26px) 0 54px;
  background:
    radial-gradient(900px 420px at 82% -12%, rgba(255, 59, 48, 0.2), transparent 70%),
    radial-gradient(720px 380px at 4% 8%, rgba(45, 226, 230, 0.13), transparent 72%),
    var(--night-950);
  isolation: isolate;
  overflow: hidden;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(0deg, rgba(45, 226, 230, 0.06) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(90deg, rgba(45, 226, 230, 0.045) 0 1px, transparent 1px 48px);
}

.page-news .news-hero__top {
  max-width: 760px;
}

.page-news .news-hero__title {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.06;
  font-size: clamp(36px, 8.4vw, 82px);
  color: var(--paper-50);
}

.page-news .news-hero__lede {
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.82;
  color: rgba(244, 247, 251, 0.72);
  max-width: 60ch;
  margin: 0;
}

.page-news .news-hero__band {
  margin: 30px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
}

.page-news .news-hero__band .data-band__item {
  padding: 12px 14px;
  background: rgba(18, 28, 46, 0.72);
  border-left: 2px solid var(--red-500);
  border-radius: 0 8px 8px 0;
}

.page-news .news-hero__band .data-band__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 25px;
  line-height: 1.15;
  color: var(--cyan-400);
  letter-spacing: -0.01em;
}

.page-news .news-hero__band .data-band__label {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--slate-400);
}

@media (min-width: 760px) {
  .page-news .news-hero__band {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }
}

/* ---------- 置顶 ---------- */
.page-news .news-pin {
  position: relative;
  margin-top: 42px;
  display: grid;
  grid-template-columns: 1fr;
  background: var(--panel-800);
  border: 1px solid var(--news-line);
  border-radius: var(--radius-card);
  border-top-right-radius: 0;
  overflow: hidden;
}

.page-news .news-pin__media {
  position: relative;
  min-height: 210px;
}

.page-news .news-pin__media img {
  width: 100%;
  height: 100%;
  min-height: 210px;
  object-fit: cover;
  opacity: 0.84;
}

.page-news .news-pin__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(7, 12, 22, 0.1), rgba(7, 12, 22, 0.86) 78%);
}

.page-news .news-pin__flag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 6px 11px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--red-500);
  background: rgba(7, 12, 22, 0.86);
  border: 1px solid var(--red-700);
  border-radius: 3px;
}

.page-news .news-pin__body {
  padding: 24px 20px 28px;
}

.page-news .news-pin__meta {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-news .news-pin__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.24;
  font-size: clamp(21px, 3.6vw, 32px);
  color: var(--paper-50);
}

.page-news .news-pin__text {
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(244, 247, 251, 0.72);
}

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

@media (min-width: 900px) {
  .page-news .news-pin {
    grid-template-columns: 1.1fr 1fr;
  }
  .page-news .news-pin__media,
  .page-news .news-pin__media img {
    min-height: 320px;
  }
  .page-news .news-pin__body {
    padding: 38px 34px;
  }
}

/* ---------- 五类栏目 ---------- */
.page-news .news-channels {
  padding: 54px 0 60px;
  background: var(--paper-50);
  color: var(--night-950);
}

.page-news .news-channels__grid {
  display: grid;
  gap: 30px;
}

.page-news .news-channels__lead {
  margin: 0 0 4px;
  font-size: 15.5px;
  line-height: 1.8;
  color: #465468;
  max-width: 46ch;
}

.page-news .news-channels__figure {
  margin: 22px 0 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #DCE4EF;
}

.page-news .news-channels__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

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

.page-news .channel {
  position: relative;
  padding: 16px 16px 18px 20px;
  background: #FFFFFF;
  border: 1px solid #DCE4EF;
  border-radius: 10px;
  overflow: hidden;
}

.page-news .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--cyan-400);
}

.page-news .channel:nth-child(1)::before { background: var(--cyan-400); }
.page-news .channel:nth-child(2)::before { background: var(--cyan-200); }
.page-news .channel:nth-child(3)::before { background: var(--red-500); }
.page-news .channel:nth-child(4)::before { background: var(--slate-700); }
.page-news .channel:nth-child(5)::before { background: var(--amber-400); }

.page-news .channel__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-news .channel__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--night-950);
}

.page-news .channel__count {
  font-size: 12.5px;
  color: #5A6779;
  white-space: nowrap;
}

.page-news .channel__rhythm {
  margin: 6px 0 8px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #7A8798;
}

.page-news .channel__rhythm::before {
  content: "▍";
  color: var(--red-500);
  margin-right: 4px;
}

.page-news .channel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: #465468;
}

@media (min-width: 620px) {
  .page-news .news-channels__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-news .news-channels__grid {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }
  .page-news .news-channels__list {
    gap: 14px;
  }
}

/* ---------- 动态流 ---------- */
.page-news .news-feed {
  position: relative;
  padding: 54px 0 60px;
  background:
    repeating-linear-gradient(0deg, rgba(45, 226, 230, 0.035) 0 1px, transparent 1px 42px),
    var(--night-900);
}

.page-news .news-feed__lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.66);
  max-width: 62ch;
}

.page-news .news-feed__band {
  margin: 26px 0 30px;
  border-radius: var(--radius-card);
  border: 1px solid var(--news-line);
  overflow: hidden;
}

.page-news .news-feed__band img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  opacity: 0.66;
}

.page-news .news-feed__layout {
  display: grid;
  gap: 26px;
}

.page-news .news-feed__rail {
  background: var(--panel-800);
  border: 1px solid var(--news-line);
  border-radius: 10px;
  padding: 18px 16px 10px;
}

.page-news .rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-news .rail-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 0;
  border-top: 1px solid var(--news-line);
  font-size: 14.5px;
  color: var(--paper-50);
  text-decoration: none;
  transition: color 160ms ease;
}

.page-news .rail-link:hover,
.page-news .rail-link:focus-visible {
  color: var(--cyan-200);
}

.page-news .rail-link__arrow {
  color: var(--cyan-400);
  font-size: 13px;
}

.page-news .news-feed__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .feed-item {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 2px 12px;
  padding: 18px 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .feed-item:first-child {
  border-top: 1px solid var(--news-line);
}

.page-news .feed-item__index {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--slate-400);
  padding-top: 4px;
}

.page-news .feed-item__body {
  min-width: 0;
}

.page-news .feed-item__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-bottom: 8px;
}

.page-news .feed-item__tag {
  font-size: 11.5px;
  line-height: 1.6;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid currentColor;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-news .feed-item__tag--version { color: var(--tag-version); }
.page-news .feed-item__tag--express { color: var(--tag-express); }
.page-news .feed-item__tag--team { color: var(--tag-team); }
.page-news .feed-item__tag--guide { color: var(--tag-guide); }
.page-news .feed-item__tag--data { color: var(--tag-data); }

.page-news .feed-item__stage {
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--slate-400);
}

.page-news .feed-item__title {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.42;
  color: var(--paper-50);
  transition: color 160ms ease;
}

.page-news .feed-item:hover .feed-item__title {
  color: var(--cyan-200);
}

.page-news .feed-item__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 247, 251, 0.62);
}

.page-news .feed-break {
  margin: 14px 0;
  padding: 22px 20px 24px;
  background: linear-gradient(118deg, rgba(255, 59, 48, 0.16), rgba(45, 226, 230, 0.1));
  border: 1px solid var(--news-line-strong);
  border-radius: 12px;
  border-top-right-radius: 0;
}

.page-news .feed-break__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan-200);
}

.page-news .feed-break__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--paper-50);
}

.page-news .feed-break__text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 247, 251, 0.72);
}

.page-news .feed-break__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-news .feed-break__link:hover,
.page-news .feed-break__link:focus-visible {
  color: var(--cyan-200);
}

@media (min-width: 768px) {
  .page-news .news-feed__band img {
    height: 190px;
  }
  .page-news .feed-item {
    grid-template-columns: 3rem minmax(0, 1fr);
    gap: 0 18px;
    padding: 20px 0;
  }
  .page-news .feed-break {
    padding: 26px 26px 28px;
  }
}

@media (min-width: 960px) {
  .page-news .news-feed__layout {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
  .page-news .news-feed__rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding: 54px 0 62px;
  background: var(--night-950);
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-news .news-series__grid {
  display: grid;
  gap: 26px;
}

.page-news .news-series__cover {
  margin: 0;
  border-radius: var(--radius-card);
  border: 1px solid var(--news-line);
  overflow: hidden;
  position: relative;
}

.page-news .news-series__cover img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: 0.86;
}

.page-news .news-series__cover::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(7, 12, 22, 0.22) 0 1px, transparent 1px 6px),
    linear-gradient(180deg, transparent 45%, rgba(7, 12, 22, 0.7));
}

.page-news .news-series__lead {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.68);
  max-width: 58ch;
}

.page-news .series-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-news .series-item {
  border-top: 1px solid var(--news-line);
}

.page-news .series-item:last-child {
  border-bottom: 1px solid var(--news-line);
}

.page-news .series-item__heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-news .series-item__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  min-height: 48px;
  background: none;
  border: 0;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  text-align: left;
  color: var(--paper-50);
  cursor: pointer;
  transition: color 160ms ease;
}

.page-news .series-item__trigger:hover,
.page-news .series-item__trigger:focus-visible {
  color: var(--cyan-200);
}

.page-news .series-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--news-line-strong);
  border-radius: 4px;
}

.page-news .series-item__icon::before,
.page-news .series-item__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan-400);
  transition: transform 180ms ease, opacity 180ms ease;
}

.page-news .series-item__icon::before {
  left: 50%;
  top: 5px;
  bottom: 5px;
  width: 1.5px;
  transform: translateX(-50%);
}

.page-news .series-item__icon::after {
  top: 50%;
  left: 5px;
  right: 5px;
  height: 1.5px;
  transform: translateY(-50%);
}

.page-news .series-item__trigger[aria-expanded="true"] .series-item__icon::before {
  opacity: 0;
  transform: translateX(-50%) scaleY(0);
}

.page-news .series-item__panel {
  padding: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 247, 251, 0.7);
}

.page-news .series-item__panel p {
  margin: 0 0 10px;
}

.page-news .series-item__list {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
}

.page-news .series-item__list li {
  position: relative;
  padding-left: 14px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.72;
}

.page-news .series-item__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--red-500);
  border-radius: 1px;
  transform: rotate(45deg);
}

@media (min-width: 900px) {
  .page-news .news-series__grid {
    grid-template-columns: 330px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
  .page-news .news-series__cover {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

/* ---------- 更新节奏 ---------- */
.page-news .news-rhythm {
  padding: 54px 0 68px;
  background:
    radial-gradient(760px 340px at 18% 0%, rgba(255, 59, 48, 0.16), transparent 72%),
    radial-gradient(620px 320px at 92% 90%, rgba(45, 226, 230, 0.1), transparent 74%),
    var(--night-900);
  border-top: 1px solid var(--news-line);
}

.page-news .news-rhythm__lead {
  margin: 0 0 26px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.68);
  max-width: 62ch;
}

.page-news .rhythm-steps {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .rhythm-step {
  padding: 18px 18px 20px;
  background: var(--panel-800);
  border: 1px solid var(--news-line);
  border-top: 2px solid var(--cyan-400);
  border-radius: 10px;
  border-top-left-radius: 0;
}

.page-news .rhythm-step:nth-child(1) { border-top-color: var(--cyan-400); }
.page-news .rhythm-step:nth-child(2) { border-top-color: var(--amber-400); }
.page-news .rhythm-step:nth-child(3) { border-top-color: var(--red-500); }

.page-news .rhythm-step__time {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--cyan-400);
}

.page-news .rhythm-step:nth-child(2) .rhythm-step__time { color: var(--amber-400); }
.page-news .rhythm-step:nth-child(3) .rhythm-step__time { color: var(--red-500); }

.page-news .rhythm-step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-50);
}

.page-news .rhythm-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: rgba(244, 247, 251, 0.66);
}

.page-news .rhythm-cta {
  display: grid;
  gap: 20px;
  padding: 24px 20px 26px;
  background: linear-gradient(120deg, rgba(18, 28, 46, 0.95), rgba(7, 12, 22, 0.92));
  border: 1px solid var(--news-line-strong);
  border-radius: 12px;
  border-bottom-right-radius: 0;
}

.page-news .rhythm-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 25px);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: var(--paper-50);
}

.page-news .rhythm-cta__text p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(244, 247, 251, 0.7);
  max-width: 56ch;
}

.page-news .rhythm-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

@media (min-width: 760px) {
  .page-news .rhythm-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-news .rhythm-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 34px;
    padding: 30px 32px;
  }
  .page-news .rhythm-cta__actions {
    flex-direction: column;
    flex-wrap: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .feed-item__title,
  .page-news .rail-link,
  .page-news .series-item__trigger,
  .page-news .series-item__icon::before,
  .page-news .series-item__icon::after {
    transition: none;
  }
}