.page-news {
  --pn-line: 1px solid var(--grey-300);
  --pn-soft: 3px 3px 0 rgba(11, 17, 16, 0.07);
  --pn-lift: 7px 9px 0 rgba(12, 59, 46, 0.14);
  background: linear-gradient(180deg, var(--paper) 0%, var(--fog) 100%);
  color: var(--ink);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-news .container {
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 面包屑 */
.page-news .breadcrumb {
  padding-top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}
.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--grey-900);
}
.page-news .breadcrumb li + li::before {
  content: "/";
  color: var(--grey-300);
}
.page-news .breadcrumb a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.page-news .breadcrumb a:hover {
  border-bottom-color: var(--cyan);
}

/* 刊头 */
.page-news .trend-masthead {
  padding: clamp(22px, 4vw, 40px) 0 clamp(24px, 4vw, 38px);
  border-bottom: 3px solid var(--ink);
}
.page-news .kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0;
}
.page-news .trend-masthead h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 12px 0 18px;
  max-width: 20em;
  overflow-wrap: break-word;
}
.page-news .trend-masthead h1 .hl {
  background: linear-gradient(transparent 60%, var(--mist) 60%);
  padding: 0 2px;
}
.page-news .trend-lede {
  margin: 0;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--grey-900);
}
.page-news .trend-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--grey-900);
}
.page-news .trend-meta li {
  position: relative;
  padding-left: 14px;
}
.page-news .trend-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}
.page-news .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* 主网格 */
.page-news .trend-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  margin-top: 34px;
}
.page-news .trend-layout--tail {
  margin-top: clamp(44px, 7vw, 72px);
}

/* 左侧索引 */
.page-news .trend-index {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}
.page-news .index-title {
  margin-bottom: 12px;
}
.page-news .index-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}
.page-news .index-list li {
  min-width: 0;
}
.page-news .index-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 6px 12px;
  border: var(--pn-line);
  background: var(--paper);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-news .index-list a .num {
  font-size: 11px;
  color: var(--green);
}
.page-news .index-list a:hover,
.page-news .index-list a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--green);
  background: var(--mist);
}
.page-news .index-list a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-news .stamp-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.page-news .stamp {
  width: 88px;
  height: 88px;
  flex: none;
  color: var(--green);
  transform: rotate(-6deg);
}
.page-news .stamp-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--grey-900);
}
.page-news .index-note {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--grey-900);
}
.page-news .index-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  font-size: 14px;
  text-decoration: none;
}

/* 章节 */
.page-news .trend-section + .trend-section {
  margin-top: clamp(40px, 6vw, 68px);
}
.page-news .stream-head {
  border-left: 4px solid var(--cyan);
  padding-left: 14px;
  margin-bottom: 22px;
}
.page-news .stream-head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.2vw, 34px);
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}
.page-news .stream-sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--grey-900);
  max-width: 56ch;
}

/* 图片 */
.page-news .feature-figure {
  margin: 0 0 24px;
}
.page-news .media-frame {
  border: var(--pn-line);
  background: var(--fog);
  box-shadow: var(--pn-soft);
  overflow: hidden;
}
.page-news .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .figcap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--grey-900);
}

/* 文章列表 */
.page-news .trend-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-news .trend-item {
  position: relative;
  padding: 16px 18px 18px;
  background: var(--paper);
  border: var(--pn-line);
  box-shadow: var(--pn-soft);
  margin-bottom: 12px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-news .trend-item::after {
  content: "";
  position: absolute;
  left: 6px;
  right: -6px;
  bottom: -6px;
  top: 6px;
  border: 1px solid rgba(201, 211, 206, 0.55);
  z-index: -1;
  transition: transform 0.2s var(--ease);
}
.page-news .trend-item:hover,
.page-news .trend-item:focus-visible {
  transform: translate(-2px, -3px);
  box-shadow: var(--pn-lift);
  border-color: var(--green);
}
.page-news .trend-item:hover::after,
.page-news .trend-item:focus-visible::after {
  transform: translate(3px, 3px);
}
.page-news .trend-item:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}
.page-news .item-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 8px;
}
.page-news .item-tag {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--grey-300);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--green);
  background: var(--paper);
}
.page-news .item-tag--accent {
  border-color: var(--green);
  background: var(--green);
  color: var(--mist);
}
.page-news .item-time {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--grey-900);
}
.page-news .item-title {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.35;
  font-weight: 600;
  margin: 0 0 6px;
  overflow-wrap: break-word;
}
.page-news .item-sum {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey-900);
}

/* 观察栏目 */
.page-news .observe-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-news .observe-fig {
  margin: 0;
}
.page-news .observe-body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--grey-900);
}
.page-news .observe-points {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  border-top: var(--pn-line);
}
.page-news .observe-points li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: var(--pn-line);
  font-size: 14px;
  line-height: 1.7;
}
.page-news .observe-points .num {
  flex: none;
  font-size: 12px;
  color: var(--green);
  letter-spacing: 0.08em;
}
.page-news .link-more {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--green);
  padding-bottom: 2px;
}
.page-news .link-more:hover,
.page-news .link-more:focus-visible {
  border-bottom-color: var(--orange);
  color: var(--orange);
}
.page-news .link-more:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* 版本动态 */
.page-news .version-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-news .version-fig {
  margin: 0;
}
.page-news .version-track {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--grey-300);
}
.page-news .version-item {
  position: relative;
  padding: 0 0 20px 20px;
}
.page-news .version-item:last-child {
  padding-bottom: 0;
}
.page-news .version-item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--cyan);
  border: 2px solid var(--green);
  transform: rotate(45deg);
}
.page-news .version-no {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--green);
  margin-bottom: 4px;
}
.page-news .version-item h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 6px;
}
.page-news .version-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey-900);
}

/* 简报深色带 */
.page-news .brief-band {
  margin-top: clamp(44px, 7vw, 76px);
  padding: clamp(24px, 4.5vw, 46px);
  background: var(--green);
  color: var(--paper);
  border: 1px solid var(--green);
  position: relative;
  overflow: hidden;
}
.page-news .brief-band::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(166, 246, 229, 0.22);
  pointer-events: none;
}
.page-news .brief-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  position: relative;
}
.page-news .brief-kicker {
  color: var(--cyan);
}
.page-news .brief-band h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.15;
  font-weight: 700;
  margin: 10px 0 12px;
  color: var(--paper);
}
.page-news .brief-lede {
  margin: 0;
  max-width: 50ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}
.page-news .brief-fig {
  margin: 0;
  border: 1px solid rgba(166, 246, 229, 0.3);
  overflow: hidden;
}
.page-news .brief-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .brief-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  position: relative;
}
.page-news .brief-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid rgba(166, 246, 229, 0.25);
  font-size: 14px;
  line-height: 1.6;
}
.page-news .brief-no {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-news .brief-title {
  color: var(--paper);
}

/* 尾部索引组 */
.page-news .tail-aside {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}
.page-news .tail-note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey-900);
  max-width: 34ch;
}
.page-news .index-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}
.page-news .index-group {
  border: var(--pn-line);
  background: var(--paper);
  padding: 16px 16px 18px;
  box-shadow: var(--pn-soft);
}
.page-news .group-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--green);
  margin: 0 0 12px;
  font-weight: 400;
}
.page-news .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-news .index-tag {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid var(--grey-300);
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink);
  background: var(--paper);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-news .index-tag--accent {
  border-color: var(--green);
  color: var(--green);
  background: var(--mist);
}
.page-news .index-tag:hover {
  border-color: var(--green);
  background: var(--fog);
}
.page-news .archive-note {
  margin-top: 20px;
}
.page-news .archive-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

/* 订阅更新 */
.page-news .subscribe-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border: 2px solid var(--ink);
  background: var(--paper);
}
.page-news .sub-col {
  padding: 20px 18px 22px;
}
.page-news .sub-col--alt {
  border-top: 1px solid var(--grey-300);
  background: var(--fog);
}
.page-news .sub-col h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 10px;
}
.page-news .sub-col p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey-900);
}
.page-news .copy-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px dashed var(--green);
  background: var(--mist);
  margin-bottom: 10px;
}
.page-news .copy-value {
  font-size: 13px;
  color: var(--green);
  overflow-wrap: anywhere;
  min-width: 0;
}
.page-news .copy-btn {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--green);
  background: var(--paper);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}
.page-news .copy-btn:hover {
  background: var(--green);
  color: var(--paper);
}
.page-news .copy-btn:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}
.page-news .sub-hint {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.75;
  color: var(--grey-900);
}
.page-news .sub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.page-news .sub-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  font-size: 14px;
  text-decoration: none;
}

/* 平板 */
@media (min-width: 700px) {
  .page-news .brief-head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: 28px;
  }
  .page-news .brief-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
  .page-news .index-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .subscribe-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .sub-col--alt {
    border-top: 0;
    border-left: 1px solid var(--grey-300);
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .page-news .trend-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 54px);
    margin-top: 44px;
  }
  .page-news .trend-index {
    position: sticky;
    top: 92px;
    align-self: start;
    border-top: 2px solid var(--ink);
  }
  .page-news .index-list {
    display: block;
    gap: 0;
  }
  .page-news .index-list li + li {
    margin-top: 6px;
  }
  .page-news .index-list a {
    display: flex;
    width: 100%;
    justify-content: flex-start;
    border-color: transparent;
    border-left: 2px solid var(--grey-300);
    background: transparent;
    padding: 8px 10px;
  }
  .page-news .index-list a:hover,
  .page-news .index-list a:focus-visible {
    transform: translateX(3px);
    border-left-color: var(--green);
    background: var(--paper);
  }
  .page-news .observe-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 30px;
    align-items: start;
  }
  .page-news .version-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 32px;
    align-items: start;
  }
  .page-news .brief-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 34px;
  }
  .page-news .trend-item {
    padding: 18px 22px 20px;
  }
  .page-news .item-title {
    font-size: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .trend-item,
  .page-news .trend-item::after,
  .page-news .index-list a,
  .page-news .index-tag,
  .page-news .copy-btn {
    transition: none;
  }
  .page-news .trend-item:hover,
  .page-news .trend-item:focus-visible {
    transform: none;
  }
}