.page-news {
  --news-hair: rgba(196, 203, 216, .32);
  --news-hair-dark: rgba(196, 203, 216, .18);
  --news-ink-soft: rgba(244, 247, 255, .78);
  --news-serif: var(--lt-font-serif);
  --news-mono: var(--lt-font-mono);
  background: var(--lt-ice);
  color: var(--lt-black);
  font-family: var(--lt-font-display);
  -webkit-font-smoothing: antialiased;
}

.page-news *,
.page-news *::before,
.page-news *::after {
  box-sizing: border-box;
}

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

/* ---------- 通用排版 ---------- */

.page-news .section-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--news-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lt-slate);
}

.page-news .section-mark__num {
  color: var(--lt-blue);
  font-weight: 700;
  letter-spacing: .06em;
}

.page-news .section-mark__name {
  white-space: nowrap;
}

.page-news .section-mark__line {
  flex: 1 1 auto;
  min-width: 24px;
  height: 1px;
  background: var(--news-hair);
}

.page-news .section-mark--invert {
  color: var(--news-ink-soft);
}

.page-news .section-mark--invert .section-mark__num {
  color: var(--lt-yellow);
}

.page-news .section-mark--invert .section-mark__line {
  background: var(--news-hair-dark);
}

.page-news .news-h2 {
  margin: 0 0 14px;
  font-family: var(--news-serif);
  font-weight: 600;
  font-size: clamp(24px, 5.2vw, 36px);
  line-height: 1.28;
  letter-spacing: -.005em;
  color: var(--lt-black);
}

.page-news .news-h2--invert {
  color: #fff;
}

.page-news .lede {
  margin: 0 0 28px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: #2A3550;
}

.page-news .lede--invert {
  color: var(--news-ink-soft);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background: var(--lt-black);
  color: #fff;
}

.page-news .news-hero__media {
  position: absolute;
  inset: 0;
}

.page-news .news-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
  filter: saturate(.75) contrast(1.05);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(196, 203, 216, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 203, 216, .09) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 26px;
  padding-bottom: 46px;
}

.page-news .news-hero__kicker {
  display: inline-block;
  margin: 22px 0 0;
  padding: 6px 12px;
  background: var(--lt-yellow);
  color: var(--lt-black);
  font-family: var(--news-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
}

.page-news .news-hero__title {
  margin: 16px 0 0;
  max-width: 16em;
  font-size: clamp(30px, 8vw, 62px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
}

.page-news .news-hero__lede {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--news-ink-soft);
}

.page-news .news-hero__stats {
  list-style: none;
  margin: 34px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--news-hair-dark);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.page-news .news-hero__num {
  display: block;
  font-family: var(--news-mono);
  font-size: clamp(17px, 4.4vw, 26px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--lt-yellow);
}

.page-news .news-hero__unit {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.5;
  color: rgba(244, 247, 255, .62);
}

/* ---------- 系列导览 ---------- */

.page-news .news-series {
  padding: 48px 0 44px;
  background: #fff;
  border-bottom: 1px solid var(--lt-concrete);
}

.page-news .news-series__grid {
  display: grid;
  gap: 34px;
}

.page-news .news-series__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--lt-concrete);
}

.page-news .news-series__item {
  position: relative;
  padding: 22px 0 20px 16px;
  border-bottom: 1px solid var(--lt-concrete);
}

.page-news .news-series__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  background: var(--lt-yellow);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .16s var(--lt-ease), transform .16s var(--lt-ease);
}

.page-news .news-series__item:hover::before,
.page-news .news-series__item:focus-within::before {
  opacity: 1;
  transform: translateX(0);
}

.page-news .news-series__when {
  margin: 0 0 6px;
  font-family: var(--news-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lt-slate);
}

.page-news .news-series__name {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--lt-black);
}

.page-news .news-series__text {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.72;
  color: #3B4763;
}

.page-news .news-series__figure {
  margin: 0;
  border: 1px solid var(--lt-concrete);
}

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

/* ---------- 条目流 ---------- */

.page-news .news-stream-section {
  padding: 48px 0 56px;
  background: var(--lt-ice);
}

.page-news .news-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.page-news .news-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
}

.page-news .news-filter__chip {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--lt-silver);
  background: #fff;
  color: var(--lt-black);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  transition: background-color .16s var(--lt-ease), border-color .16s var(--lt-ease), color .16s var(--lt-ease);
}

.page-news .news-filter__chip:hover {
  border-color: var(--lt-blue);
  color: var(--lt-blue);
}

.page-news #news-f-all:checked ~ .news-filter__bar [for="news-f-all"],
.page-news #news-f-pre:checked ~ .news-filter__bar [for="news-f-pre"],
.page-news #news-f-post:checked ~ .news-filter__bar [for="news-f-post"],
.page-news #news-f-gear:checked ~ .news-filter__bar [for="news-f-gear"],
.page-news #news-f-route:checked ~ .news-filter__bar [for="news-f-route"] {
  background: var(--lt-blue);
  border-color: var(--lt-blue);
  color: #fff;
}

.page-news #news-f-all:focus-visible ~ .news-filter__bar [for="news-f-all"],
.page-news #news-f-pre:focus-visible ~ .news-filter__bar [for="news-f-pre"],
.page-news #news-f-post:focus-visible ~ .news-filter__bar [for="news-f-post"],
.page-news #news-f-gear:focus-visible ~ .news-filter__bar [for="news-f-gear"],
.page-news #news-f-route:focus-visible ~ .news-filter__bar [for="news-f-route"] {
  outline: 2px solid var(--lt-yellow);
  outline-offset: 2px;
}

.page-news #news-f-pre:checked ~ .news-list > li:not(.is-pre):not(.news-band),
.page-news #news-f-post:checked ~ .news-list > li:not(.is-post):not(.news-band),
.page-news #news-f-gear:checked ~ .news-list > li:not(.is-gear):not(.news-band),
.page-news #news-f-route:checked ~ .news-list > li:not(.is-route):not(.news-band) {
  display: none;
}

.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--lt-concrete);
}

.page-news .news-item {
  position: relative;
  display: grid;
  gap: 12px;
  padding: 22px 16px 22px 16px;
  border-bottom: 1px solid var(--lt-concrete);
  background: transparent;
  transition: background-color .16s var(--lt-ease);
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  background: var(--lt-yellow);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .16s var(--lt-ease), transform .16s var(--lt-ease);
}

.page-news .news-item:hover {
  background: rgba(18, 54, 232, .04);
}

.page-news .news-item:hover::before,
.page-news .news-item:focus-within::before {
  opacity: 1;
  transform: translateX(0);
}

.page-news .news-item__tag {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 9px;
  font-family: var(--news-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1.5;
}

.page-news .is-pre .news-item__tag {
  background: var(--lt-blue);
  color: #fff;
}

.page-news .is-post .news-item__tag {
  background: var(--lt-night);
  color: #fff;
}

.page-news .is-gear .news-item__tag {
  background: rgba(18, 54, 232, .13);
  color: var(--lt-blue);
}

.page-news .is-route .news-item__tag {
  background: #fff;
  border: 1px solid var(--lt-blue);
  color: var(--lt-blue);
}

.page-news .news-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--lt-black);
}

.page-news .news-item__sum {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.72;
  color: #3B4763;
}

.page-news .news-item__more {
  margin: 0;
  padding-left: 10px;
  border-left: 2px solid var(--lt-yellow);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--lt-slate);
  transition: max-height .18s var(--lt-ease), opacity .18s var(--lt-ease), margin-top .18s var(--lt-ease);
}

.page-news .news-item:hover .news-item__more,
.page-news .news-item:focus-within .news-item__more {
  max-height: 16em;
  margin-top: 10px;
  opacity: 1;
}

.page-news .news-item__round {
  margin: 0;
  font-family: var(--news-mono);
}

.page-news .news-item__round b {
  display: block;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--lt-blue);
}

.page-news .news-item__round span {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--lt-slate);
}

/* ---------- 插入式专题色带 ---------- */

.page-news .news-band {
  position: relative;
  list-style: none;
  margin: 10px 0;
  padding: 26px 20px;
  overflow: hidden;
  background: var(--lt-black);
  color: #fff;
}

.page-news .news-band::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(196, 203, 216, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 203, 216, .1) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: -1px -1px;
}

.page-news .news-band > * {
  position: relative;
  z-index: 1;
}

.page-news .news-band__kicker {
  margin: 0 0 10px;
  font-family: var(--news-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lt-cyan);
}

.page-news .news-band__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: #fff;
}

.page-news .news-band__text {
  margin: 0 0 14px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--news-ink-soft);
}

.page-news .news-band__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--lt-yellow);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s var(--lt-ease);
}

.page-news .news-band__link:hover {
  border-bottom-color: var(--lt-yellow);
}

/* ---------- 更新节奏 ---------- */

.page-news .news-rhythm {
  position: relative;
  overflow: hidden;
  padding: 50px 0 52px;
  background: var(--lt-black);
  color: #fff;
}

.page-news .news-rhythm::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(196, 203, 216, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196, 203, 216, .07) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
}

.page-news .news-rhythm .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-timeline {
  list-style: none;
  margin: 8px 0 0;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--news-hair-dark);
}

.page-news .news-timeline__item {
  position: relative;
  padding: 0 0 26px;
}

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

.page-news .news-timeline__item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--lt-yellow);
}

.page-news .news-timeline__time {
  margin: 0 0 6px;
  font-family: var(--news-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--lt-yellow);
}

.page-news .news-timeline__head {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.page-news .news-timeline__desc {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--news-ink-soft);
}

.page-news .news-rhythm__stats {
  list-style: none;
  margin: 34px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--news-hair-dark);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 16px;
}

.page-news .news-rhythm__num {
  display: block;
  font-family: var(--news-mono);
  font-size: clamp(20px, 5vw, 30px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--lt-yellow);
}

.page-news .news-rhythm__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(244, 247, 255, .62);
}

/* ---------- 专题策划 ---------- */

.page-news .news-special {
  position: relative;
  overflow: hidden;
  padding: 50px 0 52px;
  background: var(--lt-blue);
  color: #fff;
}

.page-news .news-special::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, rgba(8, 9, 13, .34) 0%, rgba(8, 9, 13, 0) 46%),
    linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
  background-size: auto, 64px 64px, 64px 64px;
}

.page-news .news-special .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-special__grid {
  display: grid;
  gap: 32px;
}

.page-news .news-special__steps {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, .26);
}

.page-news .news-special__steps li {
  position: relative;
  padding: 20px 0 18px 46px;
  border-bottom: 1px solid rgba(255, 255, 255, .26);
}

.page-news .news-special__stepnum {
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--news-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--lt-yellow);
  letter-spacing: .04em;
}

.page-news .news-special__steps h3 {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.page-news .news-special__steps p {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(244, 247, 255, .82);
}

.page-news .news-special__figure {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, .3);
}

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

/* ---------- 勘误与选题 ---------- */

.page-news .news-feedback {
  padding: 48px 0;
  background: #fff;
}

.page-news .news-feedback__panel {
  display: grid;
  gap: 28px;
  padding: 28px 20px;
  border: 1px solid var(--lt-concrete);
  border-left: 4px solid var(--lt-blue);
  background: var(--lt-ice);
}

.page-news .news-feedback__copy p {
  margin: 0 0 14px;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.76;
  color: #3B4763;
}

.page-news .news-feedback__copy p:last-child {
  margin-bottom: 0;
}

.page-news .news-feedback__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-news .news-feedback__actions .copy-btn {
  flex: 1 1 100%;
  justify-content: space-between;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px dashed var(--lt-blue);
  background: #fff;
  color: var(--lt-blue);
  font-family: var(--news-mono);
  font-size: 13px;
  letter-spacing: .02em;
  cursor: pointer;
  transition: background-color .16s var(--lt-ease), color .16s var(--lt-ease);
}

.page-news .news-feedback__actions .copy-btn:hover {
  background: var(--lt-blue);
  color: #fff;
}

.page-news .news-feedback__actions .copy-btn__icon {
  font-family: var(--lt-font-display);
  font-size: 12px;
  opacity: .72;
  white-space: nowrap;
}

/* ---------- 订阅与提醒 ---------- */

.page-news .news-subscribe {
  padding: 48px 0 56px;
  background: var(--lt-ice);
  border-top: 1px solid var(--lt-concrete);
}

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

.page-news .news-subscribe__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--lt-concrete);
  aspect-ratio: 3 / 2;
}

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

.page-news .news-subscribe__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 1px solid var(--lt-concrete);
}

.page-news .news-subscribe__list li {
  padding: 12px 0 12px 16px;
  border-bottom: 1px solid var(--lt-concrete);
  position: relative;
  font-size: 15px;
  line-height: 1.7;
  color: #3B4763;
}

.page-news .news-subscribe__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 6px;
  height: 6px;
  background: var(--lt-cyan);
}

.page-news .news-subscribe__list b {
  color: var(--lt-black);
  font-weight: 700;
  margin-right: 6px;
}

.page-news .news-subscribe__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .news-subscribe__cta .btn {
  flex: 1 1 180px;
  justify-content: center;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.page-news .news-subscribe__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--lt-slate);
}

/* ---------- 回到系列导览 ---------- */

.page-news .news-jump {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 40;
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  background: var(--lt-black);
  color: var(--lt-yellow);
  border-left: 4px solid var(--lt-yellow);
  font-family: var(--news-mono);
  font-size: 13px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: background-color .16s var(--lt-ease), color .16s var(--lt-ease);
}

.page-news .news-jump:hover {
  background: var(--lt-blue);
  color: #fff;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-news .news-hero__inner {
    padding-top: 34px;
    padding-bottom: 58px;
  }

  .page-news .news-band {
    padding: 30px 32px;
  }

  .page-news .news-band__title {
    font-size: 23px;
  }

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

  .page-news .news-feedback__panel {
    padding: 34px 32px;
  }

  .page-news .news-feedback__actions .copy-btn {
    flex: 0 1 auto;
  }
}

@media (min-width: 760px) {
  .page-news .news-item {
    grid-template-columns: minmax(0, 1fr) 156px;
    gap: 32px;
    align-items: start;
    padding: 24px 20px 24px 20px;
  }

  .page-news .news-item__round {
    text-align: right;
    padding-top: 2px;
  }

  .page-news .news-item__title {
    font-size: 19px;
  }

  .page-news .news-series__item {
    padding-left: 20px;
  }

  .page-news .news-feedback__panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
    gap: 36px;
  }

  .page-news .news-subscribe__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero__inner {
    padding-top: 44px;
    padding-bottom: 72px;
  }

  .page-news .news-hero__title {
    max-width: 14em;
  }

  .page-news .news-series {
    padding: 64px 0 60px;
  }

  .page-news .news-series__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-news .news-series__side {
    position: sticky;
    top: 32px;
  }

  .page-news .news-stream-section {
    padding: 64px 0 72px;
  }

  .page-news .news-rhythm {
    padding: 66px 0 68px;
  }

  .page-news .news-special {
    padding: 66px 0 68px;
  }

  .page-news .news-special__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-news .news-feedback {
    padding: 64px 0;
  }

  .page-news .news-subscribe {
    padding: 64px 0 72px;
  }
}

@media (min-width: 1200px) {
  .page-news .news-jump {
    display: inline-flex;
    right: 32px;
    bottom: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-series__item::before,
  .page-news .news-item::before,
  .page-news .news-item__more,
  .page-news .news-item,
  .page-news .news-filter__chip,
  .page-news .news-band__link,
  .page-news .news-feedback__actions .copy-btn,
  .page-news .news-jump {
    transition: none;
  }

  .page-news .news-series__item::before,
  .page-news .news-item::before {
    transform: none;
  }
}