.page-news {
  --news-panel: var(--ink-800);
  --news-ease: var(--ease);
  --news-dur: var(--dur);
}

.page-news .news-crumb {
  padding-top: 18px;
  padding-bottom: 6px;
}

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

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding-block: clamp(22px, 5vw, 48px) clamp(34px, 6vw, 64px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(53, 232, 200, .16), transparent 58%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 122, 26, .10), transparent 62%),
    var(--ink-900);
  border-bottom: 2px solid var(--line);
}

.page-news .news-hero__grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-news .news-hero__title {
  margin: 10px 0 0;
  font-size: clamp(30px, 6vw, 60px);
  line-height: 1.04;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--paper);
}

.page-news .news-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-hero__media {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--news-panel);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 4vw, 56px);
  }

  .page-news .news-hero__media {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 26px));
  }
}

/* ---------- 速览条 ---------- */
.page-news .news-quick {
  background: var(--news-panel);
  border-bottom: 2px solid var(--line);
}

.page-news .news-quick__inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 0;
  padding-block: 20px;
}

.page-news .news-quick__item {
  display: grid;
  gap: 4px;
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.page-news .news-quick__item:nth-child(odd) {
  padding-left: 0;
  border-left: 0;
}

.page-news .news-quick__value {
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  font-weight: 700;
  color: var(--cyan);
}

.page-news .news-quick__item .t-label {
  color: var(--mist);
}

@media (min-width: 760px) {
  .page-news .news-quick__inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .news-quick__item:nth-child(odd) {
    padding-left: 16px;
    border-left: 1px solid var(--line);
  }

  .page-news .news-quick__item:first-child {
    padding-left: 0;
    border-left: 0;
  }
}

/* ---------- 主体：左侧索引 + 右侧条目流 ---------- */
.page-news .news-layout {
  display: grid;
  gap: 32px;
  padding-block: clamp(34px, 6vw, 72px);
}

.page-news .news-index {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 20px 18px;
  background: var(--news-panel);
  border: 2px solid var(--line);
}

.page-news .news-index__title {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--mist);
  text-transform: uppercase;
}

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

.page-news .news-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 12px;
  font-size: 15px;
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid var(--line);
  background: var(--ink-900);
  transition: color var(--news-dur) var(--news-ease),
              border-color var(--news-dur) var(--news-ease),
              transform var(--news-dur) var(--news-ease);
}

.page-news .news-index__link:hover {
  color: var(--cyan);
  border-left-color: var(--cyan);
  transform: translateX(2px);
}

.page-news .news-index__num {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}

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

.page-news .news-index__cta {
  margin-top: 4px;
  justify-self: start;
}

.page-news .news-stream {
  display: grid;
  min-width: 0;
}

.page-news .news-section {
  padding-block: clamp(28px, 4vw, 44px);
  border-top: 2px solid var(--line);
}

.page-news .news-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-news .news-section--last {
  padding-bottom: 0;
}

.page-news .news-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 24px;
}

.page-news .news-section__head .chapter-num {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 6px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
  border: 1px solid var(--line);
  background: var(--ink-900);
}

.page-news .news-section__head .t-h2 {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 28px);
  line-height: 1.3;
  letter-spacing: -.01em;
  font-weight: 900;
  color: var(--paper);
}

.page-news .news-section__note {
  margin: 8px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .news-section__figure {
  margin: 24px 0 0;
  border: 2px solid var(--line);
  background: var(--ink-900);
  overflow: hidden;
}

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

/* ---------- 时间线 ---------- */
.page-news .news-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 28px;
  position: relative;
  display: grid;
  gap: 20px;
}

.page-news .news-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), var(--cyan) 55%, var(--line));
}

.page-news .news-timeline__item {
  position: relative;
  min-width: 0;
}

.page-news .news-timeline__node {
  position: absolute;
  left: -28px;
  top: 14px;
  width: 14px;
  height: 14px;
  display: block;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
}

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

.page-news .pin {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 18px;
  background: var(--news-panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ink-700);
  transition: transform var(--news-dur) var(--news-ease),
              border-color var(--news-dur) var(--news-ease);
}

.page-news .pin:hover {
  transform: translateY(-2px);
  border-left-color: var(--cyan);
}

.page-news .pin--top {
  border-left-color: var(--orange);
  border-top-color: var(--orange-deep);
  box-shadow: var(--shadow-hard);
  padding-right: 46px;
}

.page-news .pin__flag {
  position: absolute;
  top: 0;
  right: 0;
  padding: 4px 12px 4px 16px;
  font-size: 12px;
  letter-spacing: .14em;
  font-weight: 700;
  color: var(--ink-900);
  background: var(--orange);
  clip-path: polygon(14px 0, 100% 0, 100% 100%, 0 100%);
}

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

.page-news .pin__title {
  margin: 0;
  font-size: clamp(17px, 2.4vw, 20px);
  font-weight: 800;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .pin__summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .pin__plan {
  margin: 2px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
}

.page-news .pin__plan-label {
  margin-right: 8px;
  color: var(--orange);
}

/* ---------- 条目流 ---------- */
.page-news .news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-news .news-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-news .news-item__num {
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1;
  font-weight: 700;
  color: var(--ink-700);
  transition: color var(--news-dur) var(--news-ease);
}

.page-news .news-item:hover .news-item__num {
  color: var(--cyan-deep);
}

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
  margin-bottom: 8px;
}

.page-news .news-item__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .news-item__summary {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-news .news-item__more {
  margin-top: 10px;
}

.page-news .news-item__more summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  cursor: pointer;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
}

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

.page-news .news-item__more summary::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--orange);
}

.page-news .news-item__more[open] summary::before {
  content: "−";
}

.page-news .news-item__more p {
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

@media (min-width: 640px) {
  .page-news .news-item {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 20px;
  }
}

/* ---------- 频道卡片 ---------- */
.page-news .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-news .channel-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 18px;
  background: var(--news-panel);
  border: 2px solid var(--line);
  transition: transform var(--news-dur) var(--news-ease),
              border-color var(--news-dur) var(--news-ease),
              box-shadow var(--news-dur) var(--news-ease);
}

.page-news .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan-deep);
  box-shadow: var(--shadow-hard);
}

.page-news .channel-card__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .channel-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .channel-card__pace {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

@media (min-width: 720px) {
  .page-news .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

/* ---------- 专题卡片 ---------- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .topic-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px;
  background: var(--news-panel);
  border: 2px solid var(--line);
  transition: transform var(--news-dur) var(--news-ease),
              border-color var(--news-dur) var(--news-ease);
}

.page-news .topic-card:hover {
  transform: translateY(-2px);
  border-color: var(--cyan-deep);
}

.page-news .topic-card--feature {
  gap: 16px;
  border-color: var(--orange-deep);
  background:
    linear-gradient(160deg, rgba(255, 122, 26, .12), transparent 60%),
    var(--news-panel);
}

.page-news .topic-card__media {
  margin: 0;
  border: 2px solid var(--line);
  overflow: hidden;
}

.page-news .topic-card__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .topic-card__body {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-news .topic-card__title {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}

.page-news .topic-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .topic-card__link {
  justify-self: start;
  margin-top: 2px;
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
  transition: transform var(--news-dur) var(--news-ease), color var(--news-dur) var(--news-ease);
}

.page-news .topic-card__link:hover {
  transform: translateY(-2px);
  color: var(--orange);
  border-bottom-color: var(--orange-deep);
}

@media (min-width: 760px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .topic-card--feature {
    grid-column: 1 / -1;
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: center;
    gap: 24px;
  }
}

/* ---------- 分类与回看 ---------- */
.page-news .archive {
  display: grid;
  gap: 24px;
}

.page-news .archive__copy .prose,
.page-news .archive__copy {
  max-width: 34em;
}

.page-news .archive__copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .archive__list {
  list-style: none;
  margin: 16px 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .archive__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
}

.page-news .archive__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

.page-news .archive__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-news .archive__media {
  margin: 0;
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  max-width: 320px;
}

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

@media (min-width: 760px) {
  .page-news .archive {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 32px;
    align-items: start;
  }

  .page-news .archive__media {
    max-width: none;
  }
}

@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

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

/* ---------- 焦点与动效偏好 ---------- */
.page-news a:focus-visible,
.page-news summary:focus-visible,
.page-news [tabindex="0"]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pin:hover,
  .page-news .channel-card:hover,
  .page-news .topic-card:hover,
  .page-news .news-index__link:hover,
  .page-news .topic-card__link:hover {
    transform: none;
  }
}