.page-news {
  --nw-rule: rgba(155, 246, 255, 0.14);
  --nw-index-w: 240px;
  background: var(--deep);
  color: var(--paper);
  padding: clamp(16px, 3vw, 32px) 0 clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

.page-news [id^="nw-"] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-news .label {
  color: var(--glass);
}

.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 首屏编辑台 ---------- */
.page-news .nw-hero {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  margin-top: clamp(14px, 2.4vw, 28px);
}

.page-news .nw-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(34px, 5.6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  max-width: 17em;
}

.page-news .nw-hero-copy .lead {
  margin-top: clamp(14px, 2vw, 22px);
  max-width: 60ch;
  color: rgba(244, 247, 245, 0.82);
  font-size: var(--step-1);
  line-height: 1.7;
}

.page-news .nw-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 14px;
  list-style: none;
  margin: clamp(22px, 3.4vw, 38px) 0 0;
  padding: 0;
  border-top: 1px solid var(--nw-rule);
}

.page-news .nw-meta li {
  padding-top: 14px;
  min-width: 0;
}

.page-news .nw-meta strong {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-news .nw-meta span {
  display: block;
  margin-top: 4px;
  font-size: var(--step--1);
  color: var(--grey);
  line-height: 1.5;
}

.page-news .nw-hero-figure {
  margin: 0;
  border: 1px solid var(--nw-rule);
  background: var(--panel);
  padding: 8px;
}

.page-news .nw-hero-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-news .nw-hero-figure .media-caption {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  color: var(--grey);
}

/* ---------- 研究板：索引 + 列表 ---------- */
.page-news .nw-board {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(34px, 5vw, 64px);
}

.page-news .nw-index {
  border: 1px solid var(--nw-rule);
  background: linear-gradient(180deg, rgba(155, 246, 255, 0.07), rgba(7, 26, 22, 0));
  padding: 16px;
}

.page-news .nw-index-list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  scrollbar-width: thin;
}

.page-news .nw-index-list li {
  flex: 0 0 auto;
}

.page-news .nw-index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  white-space: nowrap;
  color: var(--paper);
  text-decoration: none;
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  border-left: 2px solid transparent;
  background: rgba(155, 246, 255, 0.04);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news .nw-index-list a span {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--cyan);
}

.page-news .nw-index-list a:hover,
.page-news .nw-index-list a:focus-visible {
  border-left-color: var(--whistle);
  background: rgba(255, 90, 31, 0.12);
  color: var(--glass);
}

.page-news .nw-index-note {
  margin: 14px 0 0;
  font-size: var(--step--1);
  line-height: 1.6;
  color: var(--grey);
}

.page-news .nw-index-note a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .nw-list-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
  border: 1px solid var(--nw-rule);
}

.page-news .nw-list-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

/* ---------- 分组与报告卡 ---------- */
.page-news .nw-group {
  margin-bottom: clamp(28px, 4.4vw, 52px);
}

.page-news .nw-group-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-strong);
}

.page-news .nw-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-2);
  letter-spacing: 0.02em;
}

.page-news .nw-group-count {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.12em;
  color: var(--grey);
}

.page-news .nw-card {
  display: grid;
  gap: 10px;
  padding: clamp(16px, 2.2vw, 24px) 0;
  border-bottom: 1px solid var(--nw-rule);
}

.page-news .nw-card-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
}

.page-news .nw-num {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  color: var(--grey);
}

.page-news .nw-when {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  color: var(--grey);
}

.page-news .tag {
  font-size: var(--step--2);
  letter-spacing: 0.06em;
  text-transform: none;
  padding: 3px 8px;
  border: 1px solid var(--nw-rule);
  border-radius: var(--radius);
  background: rgba(155, 246, 255, 0.06);
  color: var(--glass);
}

.page-news .tag[data-tone="cyan"] {
  color: var(--cyan);
  border-color: rgba(0, 229, 255, 0.36);
  background: rgba(0, 229, 255, 0.08);
}

.page-news .tag[data-tone="orange"] {
  color: var(--whistle);
  border-color: rgba(255, 90, 31, 0.4);
  background: rgba(255, 90, 31, 0.1);
}

.page-news .tag[data-tone="yellow"] {
  color: var(--card-yellow);
  border-color: rgba(255, 210, 63, 0.4);
  background: rgba(255, 210, 63, 0.1);
}

.page-news .tag[data-tone="red"] {
  color: var(--card-red);
  border-color: rgba(255, 59, 78, 0.4);
  background: rgba(255, 59, 78, 0.1);
}

.page-news .nw-card-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-1);
  line-height: 1.24;
  letter-spacing: 0.01em;
}

.page-news .nw-card-summary {
  margin: 0;
  font-size: var(--step-0);
  line-height: 1.75;
  color: rgba(244, 247, 245, 0.78);
  max-width: 62ch;
}

.page-news .nw-card details {
  margin-top: 2px;
  padding-left: 14px;
  border-left: 2px solid transparent;
  transition: border-color 0.2s var(--ease);
}

.page-news .nw-card details[open] {
  border-left-color: var(--whistle);
}

.page-news .nw-card summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--step--1);
  letter-spacing: 0.09em;
  color: var(--cyan);
}

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

.page-news .nw-card summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--whistle);
}

.page-news .nw-card details[open] summary::after {
  content: "\2212";
}

.page-news .nw-card details p {
  margin: 10px 0 0;
  font-size: var(--step--1);
  line-height: 1.8;
  color: var(--grey);
  max-width: 58ch;
}

/* ---------- 专题轨道 ---------- */
.page-news .nw-topics {
  margin-top: clamp(38px, 5.4vw, 72px);
  border-top: 1px solid var(--line-strong);
  padding-top: clamp(26px, 3.6vw, 44px);
}

.page-news .nw-topics-head .section-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: var(--step-3);
  line-height: 1.05;
}

.page-news .nw-topics-note {
  margin: 10px 0 0;
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  color: var(--grey);
}

.page-news .nw-track {
  margin-top: clamp(16px, 2.4vw, 26px);
  padding-bottom: 18px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.page-news .nw-topic {
  flex: 0 0 84%;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--nw-rule);
}

.page-news .nw-topic-figure {
  margin: 0 0 4px;
}

.page-news .nw-topic-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .nw-topic-chart {
  margin-bottom: 4px;
  padding: 10px 4px;
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid var(--nw-rule);
}

.page-news .nw-topic-chart svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .nw-topic-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-1);
  line-height: 1.2;
}

.page-news .nw-topic-text {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.75;
  color: rgba(244, 247, 245, 0.75);
}

.page-news .nw-topic-link {
  margin-top: auto;
  padding-top: 10px;
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.32);
  align-self: flex-start;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .nw-topic-link:hover,
.page-news .nw-topic-link:focus-visible {
  color: var(--whistle);
  border-color: var(--whistle);
}

/* ---------- 更新节奏 ---------- */
.page-news .nw-facts {
  margin-top: clamp(40px, 6vw, 80px);
}

.page-news .nw-facts-head .section-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: var(--step-2);
}

.page-news .nw-facts-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-news .nw-fact {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius);
}

.page-news .nw-fact h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: var(--step-1);
  color: var(--ink);
}

.page-news .nw-fact ul {
  margin: 0;
  padding-left: 1.1em;
  display: grid;
  gap: 10px;
  font-size: var(--step--1);
  line-height: 1.75;
}

.page-news .nw-fact li::marker {
  color: var(--whistle);
}

/* ---------- 订阅入口 ---------- */
.page-news .nw-cta {
  margin-top: clamp(28px, 4vw, 44px);
}

.page-news .nw-cta-inner {
  display: grid;
  gap: 20px;
  padding: clamp(22px, 3.6vw, 44px);
  border: 1px solid var(--line-strong);
  background: linear-gradient(115deg, rgba(0, 229, 255, 0.16), rgba(255, 90, 31, 0.16));
  border-radius: var(--radius);
}

.page-news .nw-cta-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: var(--step-2);
  line-height: 1.1;
}

.page-news .nw-cta-text {
  margin: 12px 0 0;
  max-width: 54ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: rgba(244, 247, 245, 0.85);
}

.page-news .nw-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .nw-topic {
    flex-basis: 380px;
  }
}

@media (min-width: 900px) {
  .page-news .nw-hero {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    align-items: end;
  }

  .page-news .nw-hero-figure img {
    aspect-ratio: 3 / 4;
  }

  .page-news .nw-facts-grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (min-width: 960px) {
  .page-news .nw-board {
    grid-template-columns: var(--nw-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .nw-index {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-news .nw-index-list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
  }

  .page-news .nw-index-list a {
    justify-content: space-between;
    white-space: normal;
    background: transparent;
  }

  .page-news .nw-card-title {
    font-size: var(--step-2);
  }
}

@media (max-width: 479px) {
  .page-news .nw-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-news .nw-topic {
    flex-basis: 88%;
  }
}