.page-news {
  --news-cat-observe: var(--c-green-600);
  --news-cat-version: #B5860E;
  --news-cat-archive: var(--c-navy-700);
  --news-cat-hand: var(--c-red-600);
  background-color: var(--c-paper-050);
  color: var(--c-ink-900);
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-news .news-crumbs {
  padding-top: clamp(14px, 2.4vw, 22px);
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 5vw, 52px) 0 0;
  background:
    linear-gradient(118deg, var(--c-green-050) 0 38%, rgba(228, 242, 233, 0) 38%),
    radial-gradient(120% 88% at 90% 8%, rgba(240, 180, 41, 0.26), rgba(244, 241, 231, 0) 64%);
}

.page-news .news-hero__glow {
  position: absolute;
  right: -14%;
  top: -24%;
  width: 54%;
  height: 132%;
  background: linear-gradient(180deg, rgba(30, 127, 79, 0.16), rgba(240, 180, 41, 0.14));
  transform: rotate(-9deg);
  pointer-events: none;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  padding-bottom: clamp(20px, 3.4vw, 34px);
}

.page-news .news-hero__title {
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 14px 0 18px;
  max-width: 19ch;
}

.page-news .news-hero__hl {
  background-image: linear-gradient(180deg, rgba(251, 230, 176, 0) 60%, var(--c-yellow-100) 60%);
  padding: 0 2px;
}

.page-news .news-hero__lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.85;
  margin: 0;
}

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

.page-news .news-hero__fig {
  position: relative;
  z-index: 1;
  margin: 0;
}

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

/* ---------- 主体：侧栏 + 条目流 ---------- */

.page-news .news-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: clamp(30px, 5vw, 52px);
}

.page-news .news-rail {
  border: 3px solid var(--c-navy-900);
  background-color: #fff;
  box-shadow: var(--shadow-hard);
  padding: 16px;
}

.page-news .news-rail__label {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-gray-500);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.page-news .news-rail__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.page-news .news-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 9px 12px;
  border: 2px solid var(--c-navy-700);
  background-color: #fff;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-news .news-rail__link:hover {
  background-color: var(--c-green-050);
}

.page-news .news-rail__link:has(:checked) {
  background-color: var(--c-yellow-500);
  box-shadow: var(--shadow-hard-sm);
  transform: translate(-2px, -2px);
}

.page-news .news-rail__link:focus-within {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.page-news .news-filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.page-news .news-rail__dot {
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
  border: 2px solid var(--c-navy-900);
  background-color: var(--c-green-600);
}

.page-news .news-rail__dot--observe { background-color: var(--news-cat-observe); }
.page-news .news-rail__dot--version { background-color: var(--news-cat-version); }
.page-news .news-rail__dot--archive { background-color: var(--news-cat-archive); }
.page-news .news-rail__dot--hand { background-color: var(--news-cat-hand); }

.page-news .news-rail__name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  color: var(--c-ink-900);
}

.page-news .news-rail__count {
  font-size: 13px;
  color: var(--c-gray-500);
}

.page-news .news-rail__note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-gray-500);
  margin: 14px 0 0;
}

/* ---------- 条目流 ---------- */

.page-news .news-stream {
  min-width: 0;
  border-top: 3px solid var(--c-navy-900);
  padding-top: 16px;
}

.page-news .news-stream__hint {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-gray-500);
  margin: 0 0 10px;
}

.page-news .news-item {
  padding: 22px 0;
  border-bottom: 1px solid rgba(22, 48, 74, 0.22);
}

.page-news .news-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.page-news .news-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--c-ink-900);
}

.page-news .news-cat::before {
  content: "";
  display: block;
  width: 12px;
  height: 12px;
  border: 2px solid var(--c-navy-900);
  background-color: var(--c-green-600);
}

.page-news .news-cat--observe::before { background-color: var(--news-cat-observe); }
.page-news .news-cat--version::before { background-color: var(--news-cat-version); }
.page-news .news-cat--archive::before { background-color: var(--news-cat-archive); }
.page-news .news-cat--hand::before { background-color: var(--news-cat-hand); }

.page-news .news-item__time {
  font-size: 13px;
  color: var(--c-gray-500);
  letter-spacing: 0.03em;
}

.page-news .news-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.5vw, 24px);
  line-height: 1.36;
  margin: 0 0 10px;
  color: var(--c-ink-900);
}

.page-news .news-item__sum {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-ink-900);
  max-width: 68ch;
  margin: 0;
}

.page-news .news-item--brief .news-item__sum {
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-gray-500);
}

.page-news .news-item--brief {
  padding: 18px 0;
}

.page-news .news-item--last {
  border-bottom: none;
}

.page-news .news-item__fig {
  margin: 18px 0 0;
  max-width: 520px;
}

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

.page-news .news-item__fig--small {
  max-width: 420px;
}

/* 分类筛选（:has 渐进增强，未选中时全部显示） */
.page-news:has(#filter-observe:checked) .news-item:not(.news-item--observe),
.page-news:has(#filter-version:checked) .news-item:not(.news-item--version),
.page-news:has(#filter-archive:checked) .news-item:not(.news-item--archive),
.page-news:has(#filter-hand:checked) .news-item:not(.news-item--hand) {
  display: none;
}

/* ---------- 编辑推荐 ---------- */

.page-news .news-picks {
  margin-top: clamp(36px, 6vw, 64px);
  padding: clamp(36px, 5.6vw, 68px) 0;
  background: linear-gradient(180deg, var(--c-green-050) 0%, var(--c-paper-050) 100%);
  border-top: 3px solid var(--c-navy-900);
}

.page-news .news-picks__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-news .news-picks__title {
  font-size: clamp(26px, 4vw, 34px);
  margin: 12px 0 12px;
}

.page-news .news-picks__lede {
  font-size: 16px;
  line-height: 1.85;
  margin: 0;
  color: var(--c-ink-900);
}

.page-news .news-picks__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(248px, 78%);
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
}

.page-news .news-picks__track:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 4px;
}

.page-news .news-pick {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 3px solid var(--c-navy-900);
  background-color: var(--c-navy-900);
  color: var(--c-deep-text);
  box-shadow: var(--shadow-hard-green);
}

.page-news .news-pick__kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-yellow-500);
  margin: 0;
}

.page-news .news-pick__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.42;
  color: var(--c-deep-text);
  margin: 0;
}

.page-news .news-pick__why {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-deep-muted);
  margin: 0;
  flex: 1 1 auto;
}

.page-news .news-pick__meta {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-green-300);
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid rgba(159, 179, 192, 0.34);
}

/* ---------- 更新节奏 ---------- */

.page-news .news-rhythm {
  padding: clamp(38px, 5.6vw, 70px) 0;
  background-color: var(--c-green-050);
  border-top: 3px solid var(--c-navy-900);
  border-bottom: 3px solid var(--c-navy-900);
}

.page-news .news-rhythm__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-news .news-rhythm__title {
  font-size: clamp(25px, 3.6vw, 33px);
  line-height: 1.28;
  margin: 12px 0 12px;
}

.page-news .news-rhythm__lede {
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-gray-500);
  margin: 0;
}

.page-news .news-rhythm__body p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 16px;
  max-width: 66ch;
}

.page-news .news-rhythm__list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  border-top: 2px solid var(--c-navy-700);
}

.page-news .news-rhythm__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(22, 48, 74, 0.2);
}

.page-news .news-rhythm__item p {
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}

.page-news .news-rhythm__item strong {
  font-weight: 700;
}

.page-news .news-rhythm__n {
  font-size: 13px;
  color: var(--c-green-600);
  padding-top: 3px;
}

/* ---------- 顺着往下走 ---------- */

.page-news .news-next {
  padding: clamp(38px, 5.6vw, 68px) 0 0;
}

.page-news .news-next__head {
  max-width: 60ch;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-news .news-next__title {
  font-size: clamp(24px, 3.4vw, 32px);
  margin: 0 0 10px;
}

.page-news .news-next__lede {
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-gray-500);
  margin: 0;
}

.page-news .news-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-news .news-next__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 3px solid var(--c-navy-900);
  background-color: #fff;
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: var(--c-ink-900);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-news .news-next__card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 0 var(--c-green-600);
  background-color: var(--c-green-050);
}

.page-news .news-next__card:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 3px;
}

.page-news .news-next__k {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-green-600);
}

.page-news .news-next__ct {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.44;
  margin: 0;
}

.page-news .news-next__cd {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-gray-500);
  margin: 0;
  flex: 1 1 auto;
}

.page-news .news-next__go {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  color: var(--c-green-600);
  padding-top: 10px;
  border-top: 2px solid var(--c-green-300);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .news-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-picks__track {
    grid-auto-columns: minmax(280px, 46%);
  }
}

@media (min-width: 900px) {
  .page-news .news-body {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 104px;
    padding: 18px;
  }

  .page-news .news-rail__list {
    flex-direction: column;
    overflow: visible;
    gap: 6px;
  }

  .page-news .news-rail__link {
    width: 100%;
    justify-content: space-between;
    white-space: normal;
  }

  .page-news .news-item {
    padding: 26px 0;
  }

  .page-news .news-item--brief {
    padding: 20px 0;
  }

  .page-news .news-picks__track {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .news-rhythm__grid {
    grid-template-columns: 5fr 7fr;
    gap: 52px;
  }

  .page-news .news-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 1100px) {
  .page-news .news-body {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-rail__link,
  .page-news .news-next__card {
    transition: background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  }

  .page-news .news-rail__link:has(:checked),
  .page-news .news-next__card:hover {
    transform: none;
  }
}
</style>