.page-news {
  --news-rule: 2px solid rgba(167, 184, 201, .28);
  --news-rule-soft: 2px solid rgba(167, 184, 201, .16);
  --news-gap: clamp(14px, 2.4vw, 28px);
  --news-shadow: 6px 6px 0 rgba(2, 9, 15, .55);
  background-color: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-news .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumbs {
  padding-top: clamp(18px, 3.5vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(40px, 6vw, 78px);
  background-image:
    repeating-linear-gradient(0deg, rgba(127, 219, 232, .07) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(90deg, rgba(127, 219, 232, .07) 0 1px, transparent 1px 52px);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0 22%, var(--coral) 22% 40%, var(--ice) 40% 72%, var(--lime) 72% 100%);
}

.page-news .news-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: end;
}

.page-news .news-hero__title {
  margin: 10px 0 0;
  color: var(--white);
  letter-spacing: -.03em;
  line-height: 1.02;
}

.page-news .news-hero__title::first-line {
  color: var(--ice);
}

.page-news .news-hero__lede {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 62ch;
  color: var(--mist);
  line-height: 1.8;
  font-size: clamp(15px, 1.5vw, 17px);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-news .news-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  background-color: rgba(167, 184, 201, .24);
  border: var(--news-rule);
}

.page-news .news-figures > .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 14px 16px;
  background-color: var(--ink-800);
}

.page-news .news-figures .stat__num {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1;
  color: var(--orange);
  letter-spacing: -.02em;
}

.page-news .news-figures .stat__label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-news .news-hero__cover {
  margin: 0;
  border: var(--news-rule);
  box-shadow: var(--news-shadow);
  background-color: var(--ink-800);
}

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

/* ---------- 通用区块 ---------- */
.page-news .news-block {
  padding: clamp(42px, 6vw, 78px) 0;
}

.page-news .news-block + .news-block {
  border-top: var(--news-rule-soft);
}

/* ---------- 11 步案例 ---------- */
.page-news .news-case {
  background:
    linear-gradient(160deg, rgba(11, 39, 64, .95) 0%, rgba(7, 26, 43, .98) 62%),
    var(--ink-900);
}

.page-news .news-case__head {
  display: grid;
  gap: 12px;
  max-width: 74ch;
}

.page-news .news-case__head h2 {
  margin: 0;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -.02em;
}

.page-news .news-case__intro {
  margin: 0;
  color: var(--mist);
  line-height: 1.8;
  font-size: 16px;
}

.page-news .news-case__banner {
  margin: clamp(22px, 3vw, 34px) 0 clamp(24px, 3vw, 34px);
  border: var(--news-rule);
  background-color: var(--ink-800);
}

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

.page-news .case-track {
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 4px 4px 18px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--orange) rgba(167, 184, 201, .18);
}

.page-news .case-track::-webkit-scrollbar {
  height: 10px;
}

.page-news .case-track::-webkit-scrollbar-track {
  background-color: rgba(167, 184, 201, .16);
}

.page-news .case-track::-webkit-scrollbar-thumb {
  background-color: var(--orange);
}

.page-news .case-track__item {
  flex: 0 0 84%;
  scroll-snap-align: start;
}

.page-news .step-cell {
  height: 100%;
  border: var(--news-rule);
  border-left: 5px solid var(--ice);
  background-color: var(--ink-800);
  box-shadow: var(--news-shadow);
  transition: border-color .18s ease, background-color .18s ease;
}

.page-news .step-cell:hover {
  border-left-color: var(--orange);
  background-color: var(--ink-700);
}

.page-news .step-cell[open] {
  border-left-color: var(--orange);
}

.page-news .step-cell__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 14px;
  cursor: pointer;
  list-style: none;
}

.page-news .step-cell__summary::-webkit-details-marker {
  display: none;
}

.page-news .step-cell__summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--ink-900);
  background-color: var(--ice);
  transition: background-color .18s ease;
}

.page-news .step-cell[open] .step-cell__summary::after {
  content: "−";
  background-color: var(--orange);
}

.page-news .step-cell__num {
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: .02em;
}

.page-news .step-cell__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--white);
}

.page-news .step-cell__body {
  margin: 0;
  padding: 0 14px 18px;
  border-top: var(--news-rule-soft);
  padding-top: 14px;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.8;
}

.page-news .case-track__hint {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist);
}

/* ---------- 四个专题 ---------- */
.page-news .news-topics {
  background-color: var(--paper);
  color: var(--ink-900);
}

.page-news .news-topics__inner {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-news .news-topics__art {
  margin: 0;
  order: -1;
  border: 3px solid var(--ink-900);
  box-shadow: var(--news-shadow);
  background-color: var(--ink-800);
}

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

.page-news .news-topics__art .media-frame__caption {
  color: var(--ink-900);
  background-color: var(--paper);
  border-top: 2px solid var(--ink-900);
}

.page-news .news-topics .eyebrow {
  color: #123552;
  border-color: var(--ink-900);
}

.page-news .news-topics__title {
  margin: 10px 0 0;
  color: var(--ink-900);
  line-height: 1.15;
  letter-spacing: -.02em;
}

.page-news .news-topics__lede {
  margin: 14px 0 0;
  max-width: 60ch;
  color: #23384b;
  line-height: 1.8;
  font-size: 16px;
}

.page-news .topic-grid {
  display: grid;
  gap: 12px;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .topic-card {
  position: relative;
  padding: 18px 16px 20px;
  background-color: var(--white);
  border: 2px solid var(--ink-900);
  transition: transform .18s ease, box-shadow .18s ease;
}

.page-news .topic-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--ink-900);
}

.page-news .topic-card__title {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink-900);
}

.page-news .topic-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #23384b;
}

.page-news .topic-card__note {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 2px dashed rgba(7, 26, 43, .3);
  font-size: 12px;
  letter-spacing: .06em;
  color: #4a6076;
}

.page-news .news-topics .tag {
  color: var(--ink-900);
}

/* ---------- 笔记流 ---------- */
.page-news .news-stream {
  background-color: var(--ink-900);
}

.page-news .news-stream__head {
  display: grid;
  gap: 12px;
  max-width: 72ch;
}

.page-news .news-stream__head h2 {
  margin: 0;
  color: var(--white);
  letter-spacing: -.02em;
  line-height: 1.12;
}

.page-news .news-stream__intro {
  margin: 0;
  color: var(--mist);
  line-height: 1.8;
  font-size: 16px;
}

.page-news .note-list {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-bottom: var(--news-rule-soft);
}

.page-news .note-row {
  display: grid;
  gap: 10px;
  padding: 18px 0 18px 14px;
  border-top: var(--news-rule-soft);
  border-left: 4px solid transparent;
  transition: border-left-color .18s ease, background-color .18s ease, padding-left .18s ease;
}

.page-news .note-row:hover,
.page-news .note-row:focus-within {
  border-left-color: var(--orange);
  background-color: rgba(127, 219, 232, .06);
  padding-left: 18px;
}

.page-news .note-row__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .note-row__time,
.page-news .note-row__read {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-news .note-row__read::before {
  content: "·";
  margin-right: 8px;
  color: var(--ice);
}

.page-news .note-row__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
  letter-spacing: -.01em;
}

.page-news .note-row__desc {
  margin: 0;
  max-width: 68ch;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-news .news-stream__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-news .news-stream__footnote {
  margin: 0;
  max-width: 56ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 本周编辑选题 ---------- */
.page-news .news-agenda {
  background:
    linear-gradient(115deg, rgba(255, 107, 44, .1) 0 22%, transparent 22% 100%),
    var(--ink-800);
}

.page-news .news-agenda__inner {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-news .news-agenda__head h2 {
  margin: 10px 0 0;
  color: var(--white);
  letter-spacing: -.02em;
  line-height: 1.12;
}

.page-news .news-agenda__lede {
  margin: 14px 0 0;
  max-width: 44ch;
  color: var(--mist);
  line-height: 1.8;
  font-size: 15.5px;
}

.page-news .agenda-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .agenda-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 14px 16px;
  background-color: rgba(7, 26, 43, .72);
  border: 2px solid rgba(167, 184, 201, .26);
  transition: border-color .18s ease, background-color .18s ease;
}

.page-news .agenda-item:hover {
  border-color: var(--orange);
  background-color: rgba(7, 26, 43, .95);
}

.page-news .agenda-item__idx {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-900);
  background-color: var(--ice);
}

.page-news .agenda-item:nth-child(2) .agenda-item__idx {
  background-color: var(--lime);
}

.page-news .agenda-item:nth-child(3) .agenda-item__idx {
  background-color: var(--coral);
}

.page-news .agenda-item:nth-child(4) .agenda-item__idx {
  background-color: var(--orange);
}

.page-news .agenda-item__title {
  margin: 2px 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-news .agenda-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 版本档案卡 ---------- */
.page-news .news-versions {
  background-color: var(--ink-900);
}

.page-news .news-versions__card {
  border-width: 3px;
}

.page-news .news-versions__body p {
  margin: 0 0 14px;
  line-height: 1.8;
  font-size: 15px;
}

.page-news .news-versions .ledger {
  margin: 16px 0;
  border-top: 2px solid rgba(7, 26, 43, .3);
}

.page-news .news-versions .ledger__row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 2px dashed rgba(7, 26, 43, .28);
  font-size: 14px;
  line-height: 1.7;
}

.page-news .news-versions__k {
  font-size: 16px;
  font-weight: 700;
  color: #b23f0d;
}

.page-news .news-versions__tail {
  margin: 0 !important;
  padding-top: 8px;
  border-top: 2px solid rgba(7, 26, 43, .3);
  font-size: 14px !important;
}

/* ---------- 从案例到操作 ---------- */
.page-news .news-next {
  background:
    linear-gradient(180deg, rgba(11, 39, 64, .9), rgba(7, 26, 43, 1)),
    var(--ink-900);
}

.page-news .news-next__inner {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-news .news-next__text h2 {
  margin: 10px 0 0;
  color: var(--white);
  letter-spacing: -.02em;
  line-height: 1.12;
}

.page-news .news-next__text p {
  margin: 14px 0 0;
  max-width: 50ch;
  color: var(--mist);
  line-height: 1.8;
  font-size: 15.5px;
}

.page-news .news-next__links {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .next-link {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 12px;
  padding: 16px 14px;
  text-decoration: none;
  color: var(--paper);
  background-color: rgba(11, 39, 64, .78);
  border: 2px solid rgba(167, 184, 201, .28);
  border-left: 5px solid var(--ice);
  transition: border-color .18s ease, background-color .18s ease, color .18s ease;
}

.page-news .next-link:hover,
.page-news .next-link:focus-visible {
  border-color: var(--orange);
  background-color: rgba(255, 107, 44, .14);
  color: var(--white);
}

.page-news .next-link__k {
  font-size: 14px;
  color: var(--orange);
}

.page-news .next-link__t {
  font-size: 14.5px;
  line-height: 1.6;
}

.page-news .next-link__arrow {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--ice);
  transition: transform .18s ease;
}

.page-news .next-link:hover .next-link__arrow {
  transform: translateX(3px);
  color: var(--orange);
}

.page-news .news-next__note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-top: 14px;
  border-top: 2px dashed rgba(167, 184, 201, .24);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-news .case-track__item {
    flex-basis: 46%;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(30px, 4vw, 54px);
  }

  .page-news .news-hero__cover {
    align-self: end;
  }

  .page-news .case-track__item {
    flex-basis: 270px;
  }

  .page-news .news-topics__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-news .news-topics__art {
    order: 0;
    position: sticky;
    top: 120px;
  }

  .page-news .note-row {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(18px, 3vw, 36px);
    align-items: start;
    padding: 22px 0 22px 18px;
  }

  .page-news .note-row:hover,
  .page-news .note-row:focus-within {
    padding-left: 24px;
  }

  .page-news .news-agenda__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-news .news-agenda__head {
    padding-top: 6px;
  }

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

@media (min-width: 1180px) {
  .page-news .news-hero__title {
    font-size: clamp(52px, 5.4vw, 84px);
  }
}