.page-news {
  --news-rail: 250px;
  --news-gap: clamp(28px, 4vw, 60px);
  --news-frame: rgba(47, 107, 255, .28);
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.8;
}

.page-news .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: calc(var(--header-h) + 22px) 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--gray);
}

.page-news .crumbs a {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .crumbs a:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.page-news .crumbs [aria-current="page"] {
  color: var(--ink);
}

/* ---------- 首屏框景 ---------- */

.page-news .news-hero {
  padding: clamp(22px, 3vw, 34px) 0 clamp(38px, 5vw, 62px);
}

.page-news .news-hero__frame {
  position: relative;
  padding: clamp(30px, 4.4vw, 62px) clamp(22px, 4vw, 58px);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(11, 37, 69, .045) 0%, rgba(11, 37, 69, 0) 58%),
    var(--white);
  box-shadow: var(--shadow-soft);
}

.page-news .news-hero__frame::before,
.page-news .news-hero__frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 0 solid var(--orange);
}

.page-news .news-hero__frame::before {
  top: -1px;
  left: -1px;
  border-top-width: 2px;
  border-left-width: 2px;
}

.page-news .news-hero__frame::after {
  right: -1px;
  bottom: -1px;
  border-bottom-width: 2px;
  border-right-width: 2px;
}

.page-news .news-hero h1 {
  max-width: 21ch;
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 48px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-news .news-hero .lede {
  max-width: 62ch;
  margin: 20px 0 0;
  font-size: 19px;
  color: var(--gray);
}

.page-news .news-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  background: var(--mist);
}

.page-news .news-hero__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -.01em;
  color: var(--navy);
}

.page-news .news-hero__desc {
  font-size: 14px;
  color: var(--gray);
}

/* ---------- 主体骨架 ---------- */

.page-news .news-layout {
  padding-bottom: clamp(56px, 7vw, 100px);
}

.page-news .news-layout__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

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

/* ---------- 左栏目录 ---------- */

.page-news .news-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-news .news-rail__nav {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-news .news-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .news-rail__link:hover {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.page-news .news-rail__link[aria-current="true"] {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-news .news-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--gray);
}

.page-news .news-rail__link[aria-current="true"] .news-rail__num {
  color: var(--orange);
}

.page-news .news-rail__note {
  display: none;
  margin-top: 22px;
  padding: 16px 18px;
  background: var(--mist);
  border-left: 3px solid var(--blue);
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-news .news-rail__note-title {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 13px;
  color: var(--navy);
}

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

/* ---------- 区块 ---------- */

.page-news .news-block {
  padding-bottom: clamp(46px, 6vw, 78px);
  scroll-margin-top: 96px;
}

.page-news .news-block + .news-block {
  padding-top: clamp(40px, 5vw, 66px);
  border-top: 1px solid var(--silver);
}

.page-news .news-block h2 {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-news .news-block p {
  max-width: 68ch;
  margin: 18px 0 0;
  color: var(--navy);
}

.page-news .news-block .lede {
  font-size: 18px;
  color: var(--gray);
}

/* ---------- 图 ---------- */

.page-news .news-figure {
  margin: clamp(24px, 3vw, 36px) 0 0;
}

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

.page-news .news-figure figcaption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 条目筛选与列表 ---------- */

.page-news .news-filter {
  margin-top: clamp(24px, 3vw, 36px);
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .filter-bar__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray);
}

.page-news .filter-bar__count::before {
  content: "共 ";
}

.page-news .filter-bar__count::after {
  content: " 条";
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

.page-news .news-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-news .news-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 20px;
  border-left: 3px solid var(--silver);
  transition: border-color .22s var(--ease), transform .22s var(--ease);
}

.page-news .news-item:hover {
  border-left-color: var(--orange);
  transform: translateY(-2px);
}

.page-news .news-item__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-news .news-item__time {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gray);
}

.page-news .news-item__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-news .news-item__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .news-item__link {
  align-self: flex-start;
  margin-top: 4px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 107, 255, .35);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-news .news-item__link:hover {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* ---------- 专题系列 ---------- */

.page-news .news-series {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-news .news-series__item {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px;
}

.page-news .news-series__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 20px;
  line-height: 1.36;
  color: var(--ink);
}

.page-news .news-series__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

.page-news .news-series__link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 107, 255, .35);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .news-series__link:hover {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* ---------- 追更步骤 ---------- */

.page-news .news-steps {
  margin-top: clamp(24px, 3vw, 34px);
  counter-reset: none;
}

.page-news .news-steps .step {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  column-gap: 18px;
  padding: 0 0 30px;
}

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

.page-news .news-steps .step::before {
  content: "";
  position: absolute;
  top: 38px;
  left: 25px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-news .news-steps .step:last-child::before {
  display: none;
}

.page-news .news-steps .step__index {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 38px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--gray);
  background: var(--mist);
  border: 1px solid var(--line);
  z-index: 1;
}

.page-news .news-steps .step[data-active="true"] .step__index {
  color: var(--white);
  background: var(--orange);
  border-color: var(--orange);
}

.page-news .news-steps .step__title {
  grid-column: 2;
  margin: 6px 0 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .news-steps .step__body {
  grid-column: 2;
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 底部引导 ---------- */

.page-news .news-cta {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: clamp(30px, 4vw, 44px);
  padding: clamp(22px, 3vw, 32px);
  background: var(--navy);
  border: 1px solid rgba(255, 255, 255, .08);
  box-shadow: var(--shadow-card);
}

.page-news .news-cta__text h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 21px;
  line-height: 1.36;
  color: var(--white);
}

.page-news .news-cta__text p {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(233, 237, 242, .74);
}

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

.page-news .news-cta__actions .btn {
  text-decoration: none;
}

/* ---------- 平板与桌面 ---------- */

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

  .page-news .news-series {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .news-cta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 1024px) {
  .page-news .news-layout__grid {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: var(--news-gap);
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }

  .page-news .news-rail__nav {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    padding-bottom: 20px;
  }

  .page-news .news-rail__link {
    border-bottom: 0;
    border-left: 2px solid transparent;
    padding: 8px 0 8px 12px;
  }

  .page-news .news-rail__link:hover {
    border-bottom: 0;
    border-left-color: var(--blue);
  }

  .page-news .news-rail__link[aria-current="true"] {
    border-bottom: 0;
    border-left-color: var(--orange);
  }

  .page-news .news-rail__note {
    display: block;
  }

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

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

@media (min-width: 1200px) {
  .page-news .news-hero h1 {
    max-width: 23ch;
  }
}
</main>