/* ===== 更新与回访记录 · page-news ===== */

.page-news {
  background: var(--paper-50);
  color: var(--graphite-700);
}

.page-news h1,
.page-news h2,
.page-news h3,
.page-news h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

/* —— 首屏 —— */
.page-news .news-head {
  padding-top: clamp(22px, 5vw, 54px);
  padding-bottom: clamp(20px, 4vw, 44px);
}

.page-news .news-head .eyebrow {
  margin-top: 20px;
}

.page-news h1 {
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  font-weight: 900;
  line-height: 1.14;
  color: var(--ink-900);
  margin: 14px 0 18px;
  max-width: 22ch;
}

.page-news .news-head .lede {
  max-width: 64ch;
}

.page-news .news-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  margin: 30px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--hairline-copper);
}

.page-news .news-facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: var(--fs-14);
}

.page-news .news-facts .meta-mono {
  color: var(--slate-400);
}

.page-news .news-facts strong {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-18);
  letter-spacing: 0.02em;
  color: var(--indigo-700);
}

/* —— 筛选区 —— */
.page-news .filter-scope {
  margin-top: clamp(26px, 4vw, 48px);
}

.page-news .tag-filter-wrap {
  display: grid;
  gap: 24px;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-news .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-news .tag-illus {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  overflow: hidden;
  aspect-ratio: 2 / 1;
  margin: 0;
}

.page-news .tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.page-news .tf-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.page-news .tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  background: #fff;
  color: var(--indigo-700);
  font-size: var(--fs-14);
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .tag-chip:hover {
  border-color: var(--copper-400);
  color: var(--copper-600);
}

.page-news .tf-input:checked + .tag-chip {
  background: var(--indigo-700);
  border-color: var(--indigo-700);
  color: var(--paper-50);
}

.page-news .tf-input:focus-visible + .tag-chip {
  outline: 2px solid var(--copper-400);
  outline-offset: 2px;
}

/* —— 时间轴 + 条目流 —— */
.page-news .notes-grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-news .notes-rail {
  min-width: 0;
}

.page-news .news-rail-figure {
  display: none;
  margin: 0;
  aspect-ratio: 2 / 3;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news .timeline li {
  flex: 0 0 auto;
}

.page-news .timeline a {
  display: block;
  padding: 9px 15px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  background: #fff;
  color: var(--indigo-700);
  font-size: var(--fs-14);
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news .timeline a:hover {
  border-color: var(--copper-400);
  color: var(--copper-600);
}

.page-news .timeline .meta-mono {
  display: inline;
  margin-right: 6px;
  color: var(--slate-400);
}

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

.page-news .group-label {
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--copper-600);
  margin: 30px 0 14px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--hairline-copper);
}

.page-news .notes-stream > .group-label:first-child {
  margin-top: 0;
}

.page-news .note-item {
  display: flex;
  gap: 16px;
  padding: 20px 22px;
  margin-bottom: 14px;
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-s);
  transition: opacity 0.32s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .note-item:hover {
  box-shadow: var(--shadow-m);
  transform: translateY(-2px);
}

.page-news .note-item__band {
  flex: 0 0 4px;
  align-self: stretch;
  border-radius: var(--radius-pill);
  background: var(--copper-600);
}

.page-news .cat-version .note-item__band { background: var(--indigo-500); }
.page-news .cat-structure .note-item__band { background: var(--indigo-700); }
.page-news .cat-cases .note-item__band { background: var(--mint-600); }
.page-news .cat-series .note-item__band { background: var(--copper-400); }
.page-news .cat-records .note-item__band { background: var(--indigo-500); }
.page-news .cat-contact .note-item__band { background: var(--coral-500); }

.page-news .note-item__main {
  min-width: 0;
}

.page-news .note-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .note-item__title {
  font-size: var(--fs-18);
  font-weight: 800;
  line-height: 1.45;
  color: var(--ink-900);
  margin: 10px 0 8px;
}

.page-news .note-item__summary {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.72;
  max-width: 62ch;
}

.page-news .note-item .fold {
  margin-top: 14px;
}

.page-news .note-item .fold__body p,
.page-news .note-item .fold__body a {
  font-size: var(--fs-14);
}

/* 标签筛选：不匹配的条目淡出但保留时间感 */
.page-news .filter-scope:has(#tf-brand:checked) .note-item:not(.cat-brand),
.page-news .filter-scope:has(#tf-structure:checked) .note-item:not(.cat-structure),
.page-news .filter-scope:has(#tf-version:checked) .note-item:not(.cat-version),
.page-news .filter-scope:has(#tf-cases:checked) .note-item:not(.cat-cases),
.page-news .filter-scope:has(#tf-faq:checked) .note-item:not(.cat-faq),
.page-news .filter-scope:has(#tf-contact:checked) .note-item:not(.cat-contact),
.page-news .filter-scope:has(#tf-updates:checked) .note-item:not(.cat-updates),
.page-news .filter-scope:has(#tf-series:checked) .note-item:not(.cat-series),
.page-news .filter-scope:has(#tf-industry:checked) .note-item:not(.cat-industry),
.page-news .filter-scope:has(#tf-tags:checked) .note-item:not(.cat-tags),
.page-news .filter-scope:has(#tf-delivery:checked) .note-item:not(.cat-delivery),
.page-news .filter-scope:has(#tf-team:checked) .note-item:not(.cat-team),
.page-news .filter-scope:has(#tf-reach:checked) .note-item:not(.cat-reach),
.page-news .filter-scope:has(#tf-records:checked) .note-item:not(.cat-records) {
  opacity: 0.3;
}

/* —— 版本迭代 —— */
.page-news .notes-versions {
  background: var(--indigo-100);
}

.page-news .version-grid {
  align-items: start;
}

.page-news .version-copy .section-title {
  margin-top: 8px;
}

.page-news .version-copy .lede {
  margin-top: 14px;
}

.page-news .version-figure {
  margin: 0;
  aspect-ratio: 12 / 5;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: #fff;
}

.page-news .version-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-news .version-item {
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--copper-600);
  border-radius: var(--radius-s);
  box-shadow: var(--shadow-s);
}

.page-news .version-item__code {
  display: block;
  color: var(--copper-600);
  margin-bottom: 6px;
}

.page-news .version-item h3 {
  font-size: var(--fs-18);
  font-weight: 800;
  line-height: 1.45;
  color: var(--ink-900);
  margin: 0 0 8px;
}

.page-news .version-item p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--graphite-700);
}

/* —— 专题连载 —— */
.page-news .notes-series {
  background: var(--paper-50);
}

.page-news .series-grid {
  align-items: start;
}

.page-news .series-copy .section-title {
  margin-top: 8px;
}

.page-news .series-copy .lede {
  margin-top: 14px;
}

.page-news .series-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: #fff;
}

.page-news .series-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-news .series-item {
  padding: 20px 22px;
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-s);
  transition: box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .series-item:hover {
  box-shadow: var(--shadow-m);
  transform: translateY(-2px);
}

.page-news .series-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .series-item h3 {
  font-size: var(--fs-18);
  font-weight: 800;
  color: var(--ink-900);
  margin: 12px 0 8px;
}

.page-news .series-item p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.72;
  max-width: 58ch;
}

.page-news .series-progress {
  display: flex;
  gap: 6px;
  margin-top: 16px;
}

.page-news .series-progress span {
  flex: 1;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--indigo-100);
}

.page-news .series-progress span.is-done {
  background: var(--copper-400);
}

/* —— 收束区 —— */
.page-news .cta-panel {
  display: grid;
  gap: 26px;
  padding: clamp(26px, 4vw, 54px);
  background: var(--ink-900);
  border: 1px solid var(--hairline-paper);
  border-radius: var(--radius-l);
}

.page-news .cta-panel .eyebrow {
  color: var(--copper-400);
}

.page-news .cta-panel h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--paper-50);
  margin: 10px 0 14px;
}

.page-news .cta-panel p {
  margin: 0;
  max-width: 58ch;
  line-height: 1.78;
  color: rgba(247, 245, 240, 0.78);
}

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

/* —— 平板与桌面 —— */
@media (min-width: 768px) {
  .page-news .notes-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .series-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .series-list > .series-item:first-child {
    grid-column: span 2;
  }
}

@media (min-width: 1024px) {
  .page-news .tag-filter-wrap {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }

  .page-news .notes-grid {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
  }

  .page-news .notes-rail {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-news .news-rail-figure {
    display: block;
    margin-bottom: 24px;
  }

  .page-news .timeline {
    flex-direction: column;
    gap: 22px;
    overflow: visible;
    padding-left: 22px;
    position: relative;
  }

  .page-news .timeline::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--copper-400), rgba(169, 118, 44, 0.12));
  }

  .page-news .timeline a {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    position: relative;
  }

  .page-news .timeline a::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 7px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--paper-50);
    border: 1.5px solid var(--copper-600);
    transition: background 0.2s var(--ease);
  }

  .page-news .timeline a:hover::before {
    background: var(--copper-400);
  }

  .page-news .timeline .meta-mono {
    display: block;
    margin: 0 0 2px;
  }

  .page-news .version-item {
    padding: 20px 24px;
  }

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

  .page-news .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 1280px) {
  .page-news .series-list > .series-item:first-child {
    padding: 24px 26px;
  }
}

/* —— 动效收敛 —— */
@media (prefers-reduced-motion: reduce) {
  .page-news .note-item,
  .page-news .series-item,
  .page-news .timeline a::before {
    transition: opacity 0.12s linear;
  }

  .page-news .note-item:hover,
  .page-news .series-item:hover {
    transform: none;
  }
}