/* ============================================================
   页面：news — 青训观察与动态
   所有页面专属选择器均限定在 .page-news 作用域内
   ============================================================ */

.page-news {
  --news-rule: rgba(232, 242, 236, 0.12);
  --news-rule-soft: rgba(232, 242, 236, 0.07);
  --news-ink: rgba(7, 35, 28, 0.78);
  display: block;
  position: relative;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-news .news-intro {
  position: relative;
  padding-block: clamp(18px, 3.4vw, 40px) clamp(46px, 7.5vw, 104px);
}

.page-news .news-intro::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(62vw, 760px);
  height: min(62vw, 760px);
  background: radial-gradient(circle at 68% 34%, rgba(53, 242, 192, 0.17), transparent 64%);
  pointer-events: none;
  z-index: 0;
}

.page-news .news-intro > .container {
  position: relative;
  z-index: 1;
}

.page-news .intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
}

.page-news .intro-kicker {
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--cyan);
  margin: 0 0 clamp(12px, 2vw, 20px);
}

.page-news .news-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 7vw, 58px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--mist);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  max-width: 15em;
}

.page-news .news-intro .lede {
  font-family: var(--font-body);
  font-size: clamp(15.5px, 2.3vw, 18px);
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.84;
  max-width: 46em;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}

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

.page-news .intro-aside {
  position: relative;
}

.page-news .intro-figure {
  margin: 0;
  position: relative;
}

.page-news .intro-figure .media-frame {
  aspect-ratio: 3 / 2;
}

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

.page-news .intro-figure .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .intro-stamp {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  margin-top: 14px;
  padding: 7px 14px;
  background: var(--lime);
  color: var(--night);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-news .intro-stamp .stamp-k {
  font-size: 11px;
  opacity: 0.7;
}

/* ---------- 栏目声明 ---------- */

.page-news .news-claim {
  position: relative;
  margin-block: clamp(24px, 4vw, 52px);
  padding-block: clamp(40px, 6vw, 76px);
  background:
    linear-gradient(160deg, rgba(12, 58, 46, 0.92) 0%, rgba(7, 35, 28, 0.7) 68%),
    var(--stand);
  transform: skewY(-1.2deg);
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--lime), var(--cyan) 42%, rgba(53, 242, 192, 0) 82%) 1;
}

.page-news .news-claim > .container {
  transform: skewY(1.2deg);
}

.page-news .claim-kicker {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--lime);
  margin: 0 0 12px;
}

.page-news .claim-head {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.6vw, 38px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--mist);
  margin: 0 0 clamp(14px, 2vw, 20px);
  max-width: 24em;
}

.page-news .claim-text {
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.78;
  max-width: 52em;
  margin: 0 0 clamp(20px, 3vw, 30px);
}

.page-news .claim-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  max-width: 68em;
}

.page-news .claim-points li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
  opacity: 0.9;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--news-rule-soft);
}

.page-news .claim-points .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
  flex: 0 0 auto;
}

/* ---------- 笔记列表 ---------- */

.page-news .news-list {
  padding-block: clamp(28px, 4vw, 56px) clamp(46px, 7vw, 92px);
}

.page-news .news-list .section-head {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

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

.page-news .entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 28px) 0 clamp(18px, 2.6vw, 28px) 0;
  border-bottom: 1px solid var(--news-rule);
  border-left: 2px solid transparent;
  transition: border-left-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              padding-left var(--dur) var(--ease);
}

.page-news .entry:hover {
  border-left-color: var(--lime);
  background-color: var(--glass);
  padding-left: 14px;
}

.page-news .entry-round {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
}

.page-news .round-no {
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-news .round-phase {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-news .entry-title {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.6vw, 22px);
  font-weight: 800;
  line-height: 1.42;
  color: var(--mist);
  margin: 0 0 8px;
  max-width: 30em;
}

.page-news .entry-sum {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.72;
  max-width: 60ch;
  margin: 0 0 12px;
}

.page-news .entry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.page-news .list-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line-2);
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
  max-width: 62ch;
}

/* ---------- 专题系列 ---------- */

.page-news .news-topics {
  position: relative;
  margin-block: clamp(24px, 4vw, 56px);
  padding-block: clamp(46px, 7vw, 88px) clamp(30px, 4vw, 52px);
  background: var(--stand);
  clip-path: polygon(0 14px, 100% 0, 100% calc(100% - 14px), 0 100%);
  overflow: hidden;
}

.page-news .topics-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.2;
}

.page-news .topics-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.06);
}

.page-news .news-topics > .container {
  position: relative;
  z-index: 1;
}

.page-news .topic-rail {
  position: relative;
  z-index: 1;
  margin-top: clamp(22px, 3vw, 34px);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--cyan) transparent;
  padding-bottom: 6px;
}

.page-news .topic-rail:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.page-news .rail-list {
  display: flex;
  gap: clamp(14px, 2vw, 22px);
  align-items: stretch;
  list-style: none;
  margin: 0;
  padding: 4px var(--gutter) 22px;
  width: max-content;
}

.page-news .rail-card {
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: min(78vw, 350px);
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(7, 35, 28, 0.82);
  border: 1px solid var(--news-rule);
  border-left: 3px solid var(--lime);
  border-radius: var(--r-sm);
  transition: transform var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.page-news .rail-card--cyan {
  border-left-color: var(--cyan);
}

.page-news .rail-card:hover {
  transform: translateY(-2px);
  border-color: var(--lime);
  border-left-color: var(--lime);
  background: rgba(7, 35, 28, 0.94);
}

.page-news .rail-card--cyan:hover {
  border-color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-news .rail-no {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--slate);
  margin: 0 0 10px;
}

.page-news .rail-title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 23px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-news .rail-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  opacity: 0.74;
  margin: 0 0 16px;
}

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

.page-news .rail-points li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  padding: 3px 9px;
  border: 1px solid rgba(53, 242, 192, 0.28);
  border-radius: 999px;
}

/* ---------- 阶段小结 ---------- */

.page-news .news-stage {
  padding-block: clamp(40px, 6vw, 88px);
}

.page-news .news-stage .section-head {
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-news .stage-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 44px);
  align-items: start;
}

.page-news .stage-figure {
  margin: 0;
}

.page-news .stage-figure .media-frame {
  aspect-ratio: 1 / 1;
}

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

.page-news .stage-figure .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-news .stage-folds {
  display: block;
}

.page-news .stage-fold {
  background: var(--glass);
  border: 1px solid var(--news-rule);
  border-radius: var(--r-sm);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-news .stage-fold + .stage-fold {
  margin-top: 12px;
}

.page-news .stage-fold:hover {
  border-color: rgba(199, 255, 74, 0.4);
}

.page-news .stage-fold[open] {
  background: rgba(232, 242, 236, 0.05);
  border-color: rgba(199, 255, 74, 0.32);
}

.page-news .stage-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: clamp(15.5px, 2.2vw, 18px);
  font-weight: 800;
  line-height: 1.5;
  color: var(--mist);
}

.page-news .stage-summary::-webkit-details-marker {
  display: none;
}

.page-news .stage-summary::after {
  content: "＋";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--lime);
}

.page-news .stage-fold[open] > .stage-summary::after {
  content: "－";
}

.page-news .stage-summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-news .stage-panel {
  padding: 4px 18px 20px;
  border-top: 1px solid var(--news-rule-soft);
}

.page-news .stage-panel p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.78;
  max-width: 62ch;
  margin: 14px 0 0;
}

.page-news .stage-panel .link {
  color: var(--cyan);
}

.page-news .stage-table {
  width: 100%;
  margin-top: 18px;
}

.page-news .stage-caption {
  caption-side: top;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate);
  padding-bottom: 8px;
}

.page-news .stage-table .tag {
  white-space: nowrap;
}

/* ---------- 观察员手记 ---------- */

.page-news .news-notes {
  padding-block: clamp(40px, 6vw, 88px);
  border-top: 1px solid var(--news-rule-soft);
}

.page-news .notes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 44px);
  align-items: start;
}

.page-news .section-head--tight {
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-news .note-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .note-row {
  padding-block: 15px;
  border-bottom: 1px dotted var(--news-rule);
}

.page-news .note-row:first-child {
  border-top: 1px dotted var(--news-rule);
}

.page-news .note-meta {
  display: block;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-news .note-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.8;
  max-width: 62ch;
}

.page-news .notes-figure {
  margin: 0;
}

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

.page-news .notes-figure .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 继续导航 ---------- */

.page-news .news-next {
  padding-block: clamp(40px, 6vw, 88px);
  border-top: 1px solid var(--news-rule);
  background: linear-gradient(180deg, rgba(12, 58, 46, 0.34), rgba(7, 35, 28, 0) 72%);
}

.page-news .news-next .section-title {
  margin-bottom: 12px;
}

.page-news .next-lead {
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
  opacity: 0.76;
  max-width: 52ch;
  margin: 0;
}

.page-news .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-news .entry {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 0 30px;
    align-items: start;
  }

  .page-news .entry-round {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    padding-right: 22px;
    border-right: 1px solid var(--news-rule-soft);
    min-height: 100%;
  }

  .page-news .entry:hover {
    padding-left: 12px;
  }
}

@media (min-width: 900px) {
  .page-news .intro-grid {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, 0.86fr);
    gap: clamp(32px, 4.4vw, 58px);
    align-items: start;
  }

  .page-news .intro-aside {
    padding-top: clamp(14px, 3vw, 44px);
  }

  .page-news .stage-grid {
    grid-template-columns: minmax(0, 0.6fr) minmax(0, 1fr);
  }

  .page-news .notes-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  }

  .page-news .notes-figure {
    padding-top: clamp(20px, 3vw, 48px);
  }
}

@media (max-width: 640px) {
  .page-news .news-claim {
    transform: none;
    border-image: none;
    border-top: 2px solid var(--lime);
  }

  .page-news .news-claim > .container {
    transform: none;
  }

  .page-news .rail-card {
    width: min(84vw, 320px);
  }

  .page-news .entry:hover {
    padding-left: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal],
  .page-news .entry,
  .page-news .rail-card,
  .page-news .stage-fold {
    transition: none;
  }
}
</main>