.page-news {
  --news-rule: rgba(200, 162, 74, 0.24);
  --news-rule-soft: rgba(127, 154, 144, 0.18);
  --news-gap: clamp(20px, 3vw, 40px);
  color: var(--paper);
  background-image:
    radial-gradient(880px 520px at 90% -8%, rgba(56, 232, 200, 0.08), transparent 62%),
    radial-gradient(720px 460px at 4% 16%, rgba(123, 97, 255, 0.07), transparent 60%);
  background-repeat: no-repeat;
}

.page-news .eyebrow {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  padding-top: clamp(24px, 4vw, 48px);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 52px);
  align-items: center;
}

.page-news .news-hero__copy h1 {
  margin: 14px 0 18px;
  font-family: var(--font-heading);
  font-size: clamp(30px, 5.2vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-news .news-hero__copy .lede {
  max-width: 60ch;
  color: rgba(232, 241, 236, 0.82);
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-news .news-hero__media .media-frame {
  border-radius: var(--radius-xl);
  border: 1px solid var(--news-rule);
}

/* ---------- 动态流 ---------- */

.page-news .news-stream__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 44px);
}

.page-news .news-rail {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-news .news-filters {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-filter {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--news-rule);
  background: rgba(19, 46, 39, 0.5);
  color: rgba(232, 241, 236, 0.86);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-news .news-filter:hover,
.page-news .news-filter:focus-visible {
  border-color: var(--gold);
  color: var(--gold-bright);
  background: rgba(200, 162, 74, 0.12);
}

.page-news .news-filter.is-active {
  border-color: var(--gold);
  background: linear-gradient(120deg, rgba(200, 162, 74, 0.22), rgba(56, 232, 200, 0.14));
  color: var(--gold-bright);
  box-shadow: inset 0 0 0 1px rgba(56, 232, 200, 0.24);
}

.page-news .news-rail__note {
  border-left: 2px solid var(--gold);
}

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

.page-news .news-flow {
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 3vw, 40px);
  min-width: 0;
}

/* 头条 */

.page-news .news-feature {
  position: relative;
  padding: clamp(22px, 3vw, 36px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--news-rule);
  background:
    linear-gradient(150deg, rgba(200, 162, 74, 0.10), rgba(11, 31, 26, 0) 55%),
    var(--ink-2);
  box-shadow: var(--shadow-card);
}

.page-news .news-feature::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 88px;
  height: 88px;
  border-top: 1px solid var(--gold);
  border-right: 1px solid var(--gold);
  border-radius: 0 var(--radius-xl) 0 0;
  opacity: 0.55;
  pointer-events: none;
}

.page-news .news-feature__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}

.page-news .news-feature__title {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.32;
  color: var(--paper);
}

.page-news .news-feature__text {
  margin: 0 0 16px;
  color: rgba(232, 241, 236, 0.82);
  line-height: 1.8;
}

.page-news .news-feature__points {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .news-feature__points li {
  position: relative;
  padding-left: 20px;
  color: rgba(232, 241, 236, 0.78);
  line-height: 1.7;
  font-size: 15px;
}

.page-news .news-feature__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

/* 短讯列表 */

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

.page-news .news-brief {
  padding: 20px 4px;
  border-bottom: 1px dashed var(--news-rule-soft);
  border-left: 2px solid transparent;
  padding-left: 16px;
  transition: border-color 0.22s ease, background-color 0.22s ease;
}

.page-news .news-brief:hover,
.page-news .news-brief:focus-within {
  border-left-color: var(--gold);
  background: rgba(19, 46, 39, 0.55);
}

.page-news .news-brief__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
}

.page-news .news-brief__time {
  font-size: 13px;
  color: var(--gold-bright);
  letter-spacing: 0.06em;
}

.page-news .news-brief__title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .news-brief__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(232, 241, 236, 0.7);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.3s ease, opacity 0.25s ease, margin-top 0.25s ease;
}

.page-news .news-brief:hover .news-brief__text,
.page-news .news-brief:focus-within .news-brief__text {
  max-height: 16em;
  opacity: 1;
}

.page-news .tag--gold {
  border-color: var(--gold);
  color: var(--gold-bright);
}

.page-news .tag--cyan {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .tag--magenta {
  border-color: var(--magenta);
  color: var(--magenta);
}

/* ---------- 通用章节头 ---------- */

.page-news .news-section-head {
  max-width: 68ch;
  margin-bottom: clamp(24px, 3.2vw, 42px);
}

.page-news .news-section-head .section-title {
  margin: 10px 0 12px;
}

/* ---------- 版本迭代 ---------- */

.page-news .version-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 44px);
  align-items: start;
}

.page-news .version-media .media-frame {
  border-radius: var(--radius-lg);
  border: 1px solid var(--news-rule-soft);
}

.page-news .version-stack {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .version-card {
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--news-rule-soft);
  background: rgba(19, 46, 39, 0.6);
  transition: border-color 0.22s ease, transform 0.22s ease;
}

.page-news .version-card:hover {
  border-color: var(--news-rule);
  transform: translateX(4px);
}

.page-news .version-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .version-card__tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(56, 232, 200, 0.4);
  background: rgba(56, 232, 200, 0.08);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-news .version-card__title {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  color: var(--paper);
}

.page-news .version-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(232, 241, 236, 0.76);
}

/* ---------- 活动专题 ---------- */

.page-news .topic-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
  padding: clamp(18px, 2.4vw, 28px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--news-rule);
  background: linear-gradient(200deg, rgba(230, 72, 154, 0.10), rgba(11, 31, 26, 0) 58%), var(--ink-2);
  box-shadow: var(--shadow-card);
}

.page-news .topic-feature__media .media-frame {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(230, 72, 154, 0.28);
}

.page-news .topic-feature__tag {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--magenta);
}

.page-news .topic-feature__title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  line-height: 1.34;
  color: var(--paper);
}

.page-news .topic-feature__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 241, 236, 0.78);
}

.page-news .topic-feature__body p:last-child {
  margin-bottom: 0;
}

.page-news .topic-list {
  list-style: none;
  margin: clamp(24px, 3vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-news .topic-list__item {
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--news-rule-soft);
  background: rgba(11, 31, 26, 0.55);
}

.page-news .topic-list__time {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
}

.page-news .topic-list__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .topic-list__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(232, 241, 236, 0.72);
}

/* ---------- 牌型研究 ---------- */

.page-news .pattern-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-news .pattern-media .media-frame {
  border-radius: var(--radius-lg);
  border: 1px solid var(--news-rule-soft);
}

.page-news .pattern-cards {
  display: grid;
  gap: 16px;
}

.page-news .pattern-card {
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--news-rule-soft);
  background: rgba(19, 46, 39, 0.55);
  border-left: 3px solid var(--gold);
}

.page-news .pattern-card__code {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
}

.page-news .pattern-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .pattern-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(232, 241, 236, 0.74);
}

/* ---------- 变更档案 ---------- */

.page-news .changelog-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.6vw, 34px);
  padding: clamp(22px, 3vw, 40px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--news-rule-soft);
  background:
    repeating-linear-gradient(90deg, rgba(127, 154, 144, 0.06) 0 1px, transparent 1px 84px),
    var(--ink-2);
  box-shadow: var(--shadow-card);
}

.page-news .changelog-head {
  max-width: 66ch;
}

.page-news .changelog-head .section-title {
  margin: 10px 0 12px;
}

.page-news .changelog-formats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .format-chip {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  border: 1px solid var(--news-rule);
  color: var(--paper);
}

.page-news .format-chip--pdf {
  border-color: rgba(230, 72, 154, 0.5);
  color: var(--magenta);
}

.page-news .format-chip--csv {
  border-color: rgba(56, 232, 200, 0.5);
  color: var(--cyan);
}

.page-news .format-chip--md {
  border-color: rgba(200, 162, 74, 0.5);
  color: var(--gold-bright);
}

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

.page-news .changelog-item {
  padding: 18px 0;
  border-top: 1px solid var(--news-rule-soft);
}

.page-news .changelog-item__ver {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .changelog-item h3 {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .changelog-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: rgba(232, 241, 236, 0.72);
}

.page-news .changelog-foot {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 241, 236, 0.7);
}

.page-news .changelog-foot a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 订阅与反馈 ---------- */

.page-news .news-subscribe {
  padding-bottom: clamp(40px, 5vw, 72px);
}

.page-news .subscribe-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: center;
  padding: clamp(24px, 3.4vw, 44px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--news-rule);
  background:
    linear-gradient(140deg, rgba(200, 162, 74, 0.16), rgba(56, 232, 200, 0.08) 70%),
    var(--ink-2);
}

.page-news .subscribe-title {
  margin: 10px 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.24;
  color: var(--paper);
}

.page-news .subscribe-copy p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(232, 241, 236, 0.8);
}

.page-news .subscribe-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-news .subscribe-mail {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--gold-bright);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-news .topic-list,
  .page-news .pattern-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .pattern-cards .pattern-card:first-child {
    grid-column: 1 / -1;
  }

  .page-news .changelog-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
  }

  .page-news .subscribe-actions {
    flex-direction: row;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.22fr) minmax(0, 1fr);
  }

  .page-news .version-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

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

  .page-news .pattern-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }

  .page-news .subscribe-panel {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }
}

@media (min-width: 960px) {
  .page-news .news-stream__grid {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-news .news-rail {
    position: sticky;
    top: 28px;
    align-self: start;
  }

  .page-news .news-filters {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .news-filter {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .page-news .news-feature,
  .page-news .changelog-layout,
  .page-news .subscribe-panel,
  .page-news .topic-feature {
    padding-left: 18px;
    padding-right: 18px;
  }

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

  .page-news .news-feature__title,
  .page-news .topic-feature__title {
    word-break: break-word;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-brief__text,
  .page-news .news-filter,
  .page-news .version-card {
    transition: none;
  }

  .page-news .version-card:hover {
    transform: none;
  }
}