/* ============================================================
   动态与专栏 / page-news
   ============================================================ */

.page-news {
  --news-rail: 138px;
  --news-hair: rgba(44, 92, 126, .22);
  --news-hair-strong: rgba(44, 92, 126, .34);
  background: var(--paper-100);
  color: var(--black-900);
}

/* ---------- 面包屑 ---------- */
.page-news .news-crumb {
  padding-top: clamp(18px, 2.4vw, 28px);
  padding-bottom: clamp(10px, 1.6vw, 18px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(34px, 5.5vw, 76px) 0 clamp(30px, 4.5vw, 58px);
  background:
    radial-gradient(130% 150% at 10% -10%, rgba(44, 92, 126, .62), transparent 60%),
    var(--ink-900);
  color: var(--paper-100);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(199, 208, 216, .09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(199, 208, 216, .07) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: -34%;
  right: -14%;
  width: 44%;
  height: 168%;
  pointer-events: none;
  transform: skewX(-15deg);
  background: linear-gradient(180deg, rgba(201, 161, 90, .17), rgba(201, 161, 90, 0) 72%);
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(14px, 2.2vw, 24px);
}

.page-news .news-hero__kicker {
  margin: 0;
  color: var(--sand-500);
  font-size: 12px;
  letter-spacing: .16em;
}

.page-news .news-hero__title {
  margin: 0;
  font-size: clamp(46px, 12vw, 106px);
  line-height: .94;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--paper-100);
}

.page-news .news-hero__summary {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15.5px, 1.05vw, 17.5px);
  line-height: 1.85;
  color: rgba(246, 242, 233, .86);
}

.page-news .news-hero__facts {
  list-style: none;
  margin: clamp(6px, 1.2vw, 12px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
}

.page-news .news-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 13.5px;
  color: rgba(246, 242, 233, .62);
}

.page-news .news-hero__facts strong {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--sand-500);
}

.page-news .news-hero__facts .mono-label {
  color: rgba(246, 242, 233, .58);
}

.page-news .news-hero__ruler {
  position: relative;
  height: 16px;
  margin-top: clamp(6px, 1.4vw, 14px);
  border-top: 1px solid rgba(201, 161, 90, .42);
}

.page-news .news-hero__ruler::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(
    to right,
    rgba(201, 161, 90, .55) 0 1px,
    transparent 1px 34px
  );
}

/* ---------- 通用区块与标题 ---------- */
.page-news .news-block {
  padding: clamp(44px, 6vw, 90px) 0;
}

.page-news .news-head {
  display: grid;
  gap: 12px;
  max-width: 44em;
  margin-bottom: clamp(26px, 3.6vw, 46px);
}

.page-news .news-head__num {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2em;
  color: var(--ink-700);
}

.page-news .news-head__num::after {
  content: "";
  width: 46px;
  height: 1px;
  background: var(--sand-500);
}

.page-news .news-head__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--ink-900);
}

.page-news .news-head__lead {
  margin: 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--graphite-400);
}

/* ---------- 01 栏目分类 ---------- */
.page-news .channel-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--cool-300);
  border: 1px solid var(--cool-300);
  grid-template-columns: 1fr;
}

.page-news .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 22px 20px 24px;
  background: var(--surface);
  transition: background .2s var(--ease);
}

.page-news .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--sand-500);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s var(--ease);
}

.page-news .channel-card:hover {
  background: #FFFFFF;
}

.page-news .channel-card:hover::before {
  transform: scaleX(1);
}

.page-news .channel-card__num {
  color: var(--sand-500);
  font-size: 11.5px;
  letter-spacing: .16em;
}

.page-news .channel-card__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: .01em;
}

.page-news .channel-card__freq {
  margin: 0;
  font-size: 12px;
  color: var(--signal-500);
  font-weight: 600;
}

.page-news .channel-card__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--graphite-400);
}

/* ---------- 02 条目列表 ---------- */
.page-news .news-feed-block {
  background: var(--surface);
  border-top: 1px solid var(--news-hair);
  border-bottom: 1px solid var(--news-hair);
}

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

.page-news .feed__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 30px) 0;
  border-bottom: 1px solid var(--news-hair);
}

.page-news .feed__rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .feed__issue {
  display: inline-block;
  padding-left: 9px;
  border-left: 3px solid var(--sand-500);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--ink-900);
}

.page-news .feed__cat {
  display: inline-block;
  padding: 3px 11px;
  border: 1px solid var(--steel-500);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--steel-500);
}

.page-news .feed__body {
  position: relative;
}

.page-news .feed__body::before {
  content: "";
  position: absolute;
  top: 12px;
  left: -16px;
  width: 0;
  height: 1px;
  background: var(--steel-500);
  transition: width .26s var(--ease);
}

.page-news .feed__item:hover .feed__body::before {
  width: 11px;
}

.page-news .feed__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.35vw, 20px);
  line-height: 1.5;
  font-weight: 700;
  color: var(--ink-900);
  transition: transform .24s var(--ease), color .24s var(--ease);
}

.page-news .feed__item:hover .feed__title {
  transform: translateX(6px);
  color: var(--ink-700);
}

.page-news .feed__desc {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite-400);
}

.page-news .feed__meta {
  margin: 10px 0 0;
  font-size: 11.5px;
  color: var(--steel-500);
}

.page-news .feed__figure {
  margin-top: 18px;
}

/* ---------- 03 专题轨道 ---------- */
.page-news .news-series {
  padding-bottom: clamp(20px, 3vw, 34px);
}

.page-news .series-wrap {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px var(--pad) 26px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--sand-500) rgba(44, 92, 126, .12);
}

.page-news .series-wrap::-webkit-scrollbar {
  height: 6px;
}

.page-news .series-wrap::-webkit-scrollbar-track {
  background: rgba(44, 92, 126, .1);
}

.page-news .series-wrap::-webkit-scrollbar-thumb {
  background: var(--sand-500);
}

.page-news .series-track {
  display: flex;
  align-items: stretch;
  gap: 16px;
  width: max-content;
}

.page-news .series-card {
  position: relative;
  flex: 0 0 auto;
  width: clamp(238px, 66vw, 292px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 22px 20px 24px;
  background: var(--ink-900);
  color: var(--paper-100);
  clip-path: var(--cut);
  transition: transform .24s var(--ease), background .24s var(--ease);
}

.page-news .series-card:hover {
  transform: translateY(-4px);
  background: var(--ink-700);
}

.page-news .series-card__tag {
  align-self: flex-start;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-900);
  background: var(--sand-200);
}

.page-news .series-card--signal .series-card__tag {
  background: var(--signal-500);
  color: #FFFFFF;
}

.page-news .series-card--steel .series-card__tag {
  background: var(--steel-500);
  color: var(--paper-100);
}

.page-news .series-card__count {
  margin: 0;
  font-size: 11.5px;
  color: rgba(246, 242, 233, .58);
}

.page-news .series-card__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.42;
  font-weight: 700;
  color: var(--paper-100);
}

.page-news .series-card__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(246, 242, 233, .72);
}

/* ---------- 04 专题深读 ---------- */
.page-news .deep {
  display: grid;
  gap: clamp(40px, 6vw, 78px);
}

.page-news .deep__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 36px);
  align-items: center;
}

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

.page-news .deep__text {
  display: grid;
  gap: 12px;
  justify-items: start;
  min-width: 0;
}

.page-news .deep__title {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.36;
  font-weight: 800;
  color: var(--ink-900);
}

.page-news .deep__desc {
  margin: 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--graphite-400);
}

.page-news .deep__points {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  width: 100%;
  border-top: 1px solid var(--news-hair);
}

.page-news .deep__points li {
  padding: 10px 0 10px 0;
  border-bottom: 1px solid var(--news-hair);
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--ink-700);
}

.page-news .deep__points li::before {
  content: "—";
  margin-right: 9px;
  color: var(--sand-500);
  font-family: var(--font-mono);
}

.page-news .deep__text .btn {
  margin-top: 8px;
}

/* ---------- 05 回看与订阅 ---------- */
.page-news .news-back {
  background:
    linear-gradient(180deg, rgba(44, 92, 126, .07), rgba(44, 92, 126, 0) 46%),
    var(--paper-100);
  border-top: 1px solid var(--news-hair);
}

.page-news .news-back__panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--cool-300);
  border: 1px solid var(--cool-300);
}

.page-news .news-back__col {
  padding: clamp(24px, 3.2vw, 40px) clamp(20px, 2.8vw, 36px);
  background: var(--surface);
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-news .news-back__col--sand {
  background: var(--sand-200);
}

.page-news .news-back__title {
  margin: 0;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.34;
  font-weight: 800;
  color: var(--ink-900);
}

.page-news .news-back__desc {
  margin: 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.84;
  color: var(--graphite-400);
}

.page-news .news-back__col--sand .news-back__desc {
  color: var(--ink-700);
}

.page-news .issue-strip {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .issue-strip__item {
  padding: 5px 12px;
  border: 1px solid var(--steel-500);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--ink-700);
  background: transparent;
}

.page-news .issue-strip__item--more {
  border-style: dashed;
  border-color: var(--graphite-400);
  color: var(--graphite-400);
}

.page-news .news-back__col--sand .copy-chip {
  justify-self: start;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-news .news-back__note {
  margin: 0;
  font-size: 11.5px;
  color: var(--ink-700);
}

.page-news .news-trust {
  display: grid;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--rule-strong, rgba(201, 161, 90, .42));
}

.page-news .news-trust__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-700);
}

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

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

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

@media (min-width: 820px) {
  .page-news .feed__item {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: 8px clamp(20px, 2.6vw, 38px);
  }

  .page-news .feed__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 3px;
    position: sticky;
    top: 96px;
  }

  .page-news .news-trust {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-news .deep__row {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .deep__row--flip .deep__media {
    order: 2;
  }

  .page-news .deep__row--flip .deep__text {
    order: 1;
  }
}

@media (min-width: 1040px) {
  .page-news .channel-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-news .news-back__panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }
}