.page-news {
  --news-rail: 252px;
  --news-gap: clamp(20px, 3vw, 40px);
  --news-sec: clamp(44px, 6vw, 88px);
  background: var(--ink-900);
  color: var(--paper);
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: clamp(16px, 2.5vw, 28px);
}

.page-news .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-news .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--slate-soft);
}

.page-news .breadcrumb__link {
  color: var(--slate);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease);
}

.page-news .breadcrumb__link:hover,
.page-news .breadcrumb__link:focus-visible {
  color: var(--cyan);
}

/* ---------- 首屏框景专题 ---------- */
.page-news .news-hero {
  padding-top: clamp(20px, 3vw, 40px);
}

.page-news .news-hero__frame {
  position: relative;
  display: grid;
  gap: clamp(24px, 3.5vw, 52px);
  padding: clamp(24px, 4vw, 56px) clamp(20px, 3.5vw, 52px);
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(148deg, var(--ink-850) 0%, var(--ink-900) 58%),
    var(--ink-900);
  overflow: hidden;
}

.page-news .news-hero__frame::before,
.page-news .news-hero__frame::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border: 1px solid var(--orange);
  pointer-events: none;
}

.page-news .news-hero__frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-news .news-hero__frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

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

.page-news .news-hero__stamps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-stamp {
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.14em;
  padding: 5px 10px;
  border: 1px solid var(--line-strong);
  color: var(--slate);
  line-height: 1.4;
}

.page-news .news-stamp--version {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
  font-weight: 700;
}

.page-news .news-stamp--gold {
  color: var(--gold);
  border-color: rgba(201, 162, 39, 0.55);
}

.page-news .news-stamp--cyan {
  color: var(--cyan);
  border-color: rgba(31, 224, 208, 0.42);
}

.page-news .news-hero h1 {
  margin: 18px 0 0;
  font-size: clamp(1.75rem, 4.4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 800;
  max-width: 18ch;
}

.page-news .news-hero__lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: var(--fs-body);
  line-height: 1.78;
  color: rgba(233, 224, 207, 0.8);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-news .news-hero__media {
  position: relative;
  margin: 0;
  padding: 9px;
  border: 1px solid var(--line-strong);
  background: var(--ink-850);
  min-width: 0;
}

.page-news .news-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 9;
  object-fit: cover;
  opacity: 0.82;
}

.page-news .news-hero__media::after {
  content: "";
  position: absolute;
  right: 9px;
  bottom: 9px;
  width: 64px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}

/* ---------- 目录式主体 ---------- */
.page-news .news-desk {
  display: grid;
  gap: var(--news-gap);
  padding-block: var(--news-sec);
}

.page-news .news-rail {
  min-width: 0;
  border-top: 1px solid var(--line-strong);
  padding-top: 16px;
}

.page-news .news-rail__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.2em;
  color: var(--slate);
}

.page-news .news-rail__list {
  display: grid;
  gap: 2px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-news .news-rail__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 10px;
  border-left: 2px solid transparent;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--fs-small);
  transition: border-color var(--dur-1) var(--ease), color var(--dur-1) var(--ease),
    background-color var(--dur-1) var(--ease);
}

.page-news .news-rail__link .num {
  font-size: var(--fs-mini);
  color: var(--slate);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  border-left-color: var(--orange);
  background: rgba(31, 224, 208, 0.06);
  color: var(--cyan);
}

.page-news .news-rail__link:hover .num,
.page-news .news-rail__link:focus-visible .num {
  color: var(--cyan);
}

.page-news .news-rail__note,
.page-news .news-rail__links {
  margin-top: 22px;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line-strong);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: rgba(233, 224, 207, 0.72);
}

.page-news .news-rail__note p {
  margin: 0;
}

.page-news .news-rail__note-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .news-rail__links ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-rail__links a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.page-news .news-rail__links a:hover,
.page-news .news-rail__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 条目列表 ---------- */
.page-news .news-feed {
  min-width: 0;
}

.page-news .news-group + .news-group {
  margin-top: clamp(30px, 4vw, 56px);
}

.page-news .news-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
  font-size: clamp(1.1rem, 1.7vw, 1.4rem);
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-news .news-group__count {
  font-size: var(--fs-mini);
  letter-spacing: 0.1em;
  color: var(--orange);
}

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

.page-news .news-entry {
  min-width: 0;
  padding: 18px 0 18px 14px;
  border-left: 2px solid transparent;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}

.page-news .news-entry:hover,
.page-news .news-entry:focus-within {
  border-left-color: var(--orange);
  background: rgba(31, 224, 208, 0.045);
}

.page-news .news-entry__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
}

.page-news .news-entry__no {
  font-size: var(--fs-mini);
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-news .news-entry__stage {
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border: 1px solid var(--line-strong);
  color: var(--slate);
  line-height: 1.5;
}

.page-news .news-entry__title {
  margin: 9px 0 0;
  font-size: clamp(1rem, 0.5vw + 0.95rem, 1.2rem);
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-entry__summary {
  margin: 0;
  max-width: 62ch;
  font-size: var(--fs-small);
  line-height: 1.78;
  color: rgba(233, 224, 207, 0.74);
}

.page-news .news-entry__thumb {
  margin: 14px 0 0;
  max-width: 420px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-news .news-entry__thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  opacity: 0.78;
  transition: opacity var(--dur-2) var(--ease);
}

.page-news .news-entry:hover .news-entry__thumb img {
  opacity: 1;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-block: var(--news-sec);
  background:
    linear-gradient(180deg, var(--ink-900), var(--ink-850) 40%, var(--ink-900));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-series__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-news .news-series__head h2 {
  margin: 12px 0 0;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.page-news .news-series__lede {
  margin: 14px 0 0;
  font-size: var(--fs-small);
  line-height: 1.78;
  color: rgba(233, 224, 207, 0.74);
}

.page-news .segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.page-news .segmented__tab {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: var(--fs-mini);
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease),
    background-color var(--dur-1) var(--ease);
}

.page-news .segmented__tab:hover {
  color: var(--paper);
  border-color: rgba(233, 224, 207, 0.42);
}

.page-news .segmented__tab[aria-selected="true"] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
  font-weight: 700;
}

.page-news .segmented__tab:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.page-news .tab-panel {
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--cyan);
  background: var(--ink-800);
  padding: clamp(18px, 3vw, 30px);
}

.page-news .tab-panel + .tab-panel {
  margin-top: 14px;
}

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

.page-news .news-series__list li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: var(--fs-small);
  line-height: 1.76;
  color: rgba(233, 224, 207, 0.82);
}

.page-news .news-series__list .num {
  font-size: var(--fs-mini);
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 反馈收口 ---------- */
.page-news .news-cta {
  padding-block: var(--news-sec);
}

.page-news .news-cta__panel {
  position: relative;
  display: grid;
  gap: 20px;
  padding: clamp(26px, 4vw, 50px);
  background: var(--paper);
  color: var(--paper-ink);
  border: 1px solid var(--line-paper-strong);
}

.page-news .news-cta__panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--orange), var(--gold));
}

.page-news .news-cta__text h2 {
  margin: 0;
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-weight: 800;
  color: var(--paper-ink);
}

.page-news .news-cta__text p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: rgba(20, 24, 30, 0.78);
}

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

.page-news .news-cta__meta {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-paper);
  font-size: var(--fs-mini);
  line-height: 1.7;
  color: rgba(20, 24, 30, 0.62);
}

/* ---------- 窄屏折叠摘要 ---------- */
@media (hover: hover) and (min-width: 901px) {
  .page-news .news-entry__summary {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease),
      margin-top var(--dur-2) var(--ease);
  }

  .page-news .news-entry:hover .news-entry__summary,
  .page-news .news-entry:focus-within .news-entry__summary {
    max-height: 260px;
    margin-top: 10px;
    opacity: 1;
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .news-entry {
    padding-left: 18px;
  }

  .page-news .news-cta__actions {
    gap: 12px;
  }
}

@media (min-width: 901px) {
  .page-news .news-hero__frame {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-news .news-desk {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 24px;
  }

  .page-news .news-cta__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 20px 32px;
  }

  .page-news .news-cta__meta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1100px) {
  .page-news .news-entry {
    padding: 20px 0 20px 20px;
  }

  .page-news .news-entry__title {
    max-width: 34ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-entry__summary,
  .page-news .news-entry__thumb img,
  .page-news .news-rail__link,
  .page-news .segmented__tab {
    transition: none;
  }
}