.page-news {
  --news-side: 208px;
  --news-mark: 3px;
  --note-no: 2.4rem;
}

.page-news .news-crumbs {
  padding-top: 20px;
}

.page-news .news-masthead {
  max-width: 44em;
  padding: 18px 0 6px;
}

.page-news .news-masthead .eyebrow {
  color: var(--water);
  letter-spacing: 0.08em;
}

.page-news .news-masthead h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(28px, 6.2vw, var(--t-6));
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
  margin: 10px 0 14px;
}

.page-news .news-masthead .lede {
  font-size: var(--t-3);
  line-height: 1.8;
  color: var(--ink-mid);
  max-width: 36em;
  margin: 0;
}

.page-news .news-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 22px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--hair);
  font-size: var(--t-2);
  color: var(--water);
}

.page-news .news-meta .num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--t-4);
  color: var(--ink-deep);
  margin-right: 5px;
}

.page-news .news-band {
  margin: 26px 0 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}

.page-news .news-band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 5;
  object-fit: cover;
}

.page-news .news-band .media-caption {
  padding: 8px 12px;
  font-size: var(--t-1);
  color: var(--water);
  border-top: 1px solid var(--hair);
}

.page-news .news-section {
  margin-top: 46px;
}

/* ---------- 目录区：左索引 + 右侧细线目录行 ---------- */

.page-news .news-deck {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px 32px;
  margin-top: 20px;
}

.page-news .news-filter-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-news .news-side {
  padding: 0 0 14px;
}

.page-news .side-title {
  margin: 0 0 10px;
  font-size: var(--t-1);
  letter-spacing: 0.1em;
  color: var(--water);
}

.page-news .side-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
}

.page-news .side-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 11px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink-mid);
  font-size: var(--t-2);
  line-height: 1.4;
  cursor: pointer;
  transition: background 140ms var(--ease), color 140ms var(--ease), border-color 140ms var(--ease);
}

.page-news .side-chip:hover {
  border-color: var(--ink-mid);
}

.page-news .side-count {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--t-1);
  color: var(--water);
}

.page-news #nf-all:checked ~ .news-side label[for="nf-all"],
.page-news #nf-report:checked ~ .news-side label[for="nf-report"],
.page-news #nf-column:checked ~ .news-side label[for="nf-column"],
.page-news #nf-data:checked ~ .news-side label[for="nf-data"],
.page-news #nf-tips:checked ~ .news-side label[for="nf-tips"] {
  background: var(--ink-deep);
  border-color: var(--ink-deep);
  color: var(--paper);
}

.page-news #nf-all:checked ~ .news-side label[for="nf-all"] .side-count,
.page-news #nf-report:checked ~ .news-side label[for="nf-report"] .side-count,
.page-news #nf-column:checked ~ .news-side label[for="nf-column"] .side-count,
.page-news #nf-data:checked ~ .news-side label[for="nf-data"] .side-count,
.page-news #nf-tips:checked ~ .news-side label[for="nf-tips"] .side-count {
  color: var(--lime);
}

.page-news .side-note {
  margin: 14px 0 0;
  font-size: var(--t-1);
  line-height: 1.7;
  color: var(--water);
  max-width: 18em;
}

.page-news #nf-report:checked ~ .news-stream .note-row:not([data-type="report"]),
.page-news #nf-column:checked ~ .news-stream .note-row:not([data-type="column"]),
.page-news #nf-data:checked ~ .news-stream .note-row:not([data-type="data"]),
.page-news #nf-tips:checked ~ .news-stream .note-row:not([data-type="tips"]) {
  display: none;
}

.page-news #nf-report:checked ~ .news-stream .note-break,
.page-news #nf-column:checked ~ .news-stream .note-break,
.page-news #nf-data:checked ~ .news-stream .note-break,
.page-news #nf-tips:checked ~ .news-stream .note-break {
  display: none;
}

/* ---------- 目录行 ---------- */

.page-news .news-stream {
  border-bottom: 1px solid var(--hair);
}

.page-news .note-row {
  border-top: 1px solid var(--hair);
}

.page-news .note-row:last-of-type {
  border-bottom: 1px solid var(--hair);
}

.page-news .note-fold {
  position: relative;
  display: block;
}

.page-news .note-fold::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--news-mark);
  background: var(--cinnabar);
  transform: scaleY(0);
  transform-origin: 50% 0;
  transition: transform 180ms var(--ease);
}

.page-news .note-fold:hover::before,
.page-news .note-fold:focus-within::before,
.page-news .note-fold[open]::before {
  transform: scaleY(1);
}

.page-news .note-summary {
  position: relative;
  display: grid;
  grid-template-columns: var(--note-no) minmax(0, 1fr);
  grid-template-areas:
    "no head"
    "no title"
    "no excerpt";
  column-gap: 12px;
  row-gap: 5px;
  padding: 16px 32px 16px 14px;
  list-style: none;
  cursor: pointer;
}

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

.page-news .note-summary::after {
  content: "＋";
  position: absolute;
  top: 14px;
  right: 4px;
  font-family: var(--mono);
  font-size: var(--t-2);
  color: var(--water);
  transition: transform 160ms var(--ease), color 160ms var(--ease);
}

.page-news .note-fold[open] .note-summary::after {
  content: "＋";
  transform: rotate(45deg);
  color: var(--cinnabar);
}

.page-news .note-no {
  grid-area: no;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--t-2);
  color: var(--water);
  padding-top: 3px;
}

.page-news .note-head {
  grid-area: head;
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-news .note-kind {
  font-family: var(--sans);
  font-size: var(--t-1);
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 2px;
  background: rgba(44, 80, 88, 0.08);
  color: var(--ink-mid);
}

.page-news .note-time {
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.04em;
  color: var(--water);
}

.page-news .note-title {
  grid-area: title;
  font-family: var(--serif);
  font-weight: 700;
  font-size: var(--t-4);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-news .note-excerpt {
  grid-area: excerpt;
  display: block;
  max-height: 1.75em;
  overflow: hidden;
  font-size: var(--t-2);
  line-height: 1.7;
  color: var(--ink-mid);
  transition: max-height 200ms var(--ease), color 160ms var(--ease);
}

.page-news .note-summary:hover .note-excerpt,
.page-news .note-fold:focus-within .note-excerpt,
.page-news .note-fold[open] .note-excerpt {
  max-height: 5.4em;
}

.page-news .note-body {
  padding: 0 32px 18px calc(14px + var(--note-no) + 12px);
  font-size: var(--t-2);
  line-height: 1.75;
  color: var(--ink-mid);
  max-width: 40em;
}

.page-news .note-body p {
  margin: 0;
}

/* ---------- 通栏专题带 ---------- */

.page-news .note-break {
  margin: 26px 0;
}

.page-news .note-band {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--lime);
  color: var(--carbon);
}

.page-news .note-band-art {
  display: block;
  width: 76px;
  height: 76px;
  object-fit: cover;
  border-radius: 2px;
  background: var(--paper);
}

.page-news .note-band-kicker {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.06em;
}

.page-news .note-band-title {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: var(--t-4);
  line-height: 1.35;
  color: var(--carbon);
}

.page-news .note-band-desc {
  margin: 0;
  font-size: var(--t-2);
  line-height: 1.7;
  max-width: 40em;
}

.page-news .note-band .btn--ghost {
  border-color: var(--carbon);
  color: var(--carbon);
  justify-self: start;
  white-space: nowrap;
}

.page-news .note-band .btn--ghost:hover {
  background: var(--carbon);
  color: var(--lime);
}

/* ---------- 列表中部小图 ---------- */

.page-news .news-inset {
  display: grid;
  gap: 14px;
  margin: 26px 0;
  padding: 14px;
  background: var(--paper);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-news .news-inset img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  border-radius: 2px;
}

.page-news .news-inset-title {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: var(--t-4);
  color: var(--ink-deep);
}

.page-news .news-inset-copy p {
  margin: 0;
  font-size: var(--t-2);
  line-height: 1.7;
  color: var(--ink-mid);
}

/* ---------- 专题系列 ---------- */

.page-news .series-grid {
  display: grid;
  gap: 22px;
  margin-top: 20px;
}

.page-news .series-item {
  border-top: 2px solid var(--ink-deep);
  padding-top: 14px;
}

.page-news .series-item:nth-child(2) {
  border-top-color: var(--cinnabar);
}

.page-news .series-kicker {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: var(--t-1);
  letter-spacing: 0.06em;
  color: var(--lime-deep);
}

.page-news .series-item h3 {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: var(--t-5);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-news .series-item p {
  margin: 0 0 10px;
  font-size: var(--t-2);
  line-height: 1.75;
  color: var(--ink-mid);
  max-width: 34em;
}

.page-news .series-item .series-meta {
  margin: 0;
  font-family: var(--mono);
  font-size: var(--t-1);
  color: var(--water);
}

/* ---------- 编辑的一句话 ---------- */

.page-news .editor-grid {
  display: grid;
  gap: 22px;
  margin-top: 20px;
}

.page-news .editor-quote {
  border-left: var(--news-mark) solid var(--cinnabar);
  padding-left: 18px;
}

.page-news .editor-body {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: clamp(17px, 2.4vw, var(--t-4));
  line-height: 1.75;
  color: var(--ink-deep);
}

.page-news .editor-sig {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: var(--t-1);
  color: var(--water);
}

.page-news .editor-extra {
  margin: 0;
  font-size: var(--t-2);
  line-height: 1.75;
  color: var(--ink-mid);
}

.page-news .editor-extra a {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .editor-frame {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper);
}

.page-news .editor-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .editor-frame .media-caption {
  padding: 8px 12px;
  font-size: var(--t-1);
  color: var(--water);
  border-top: 1px solid var(--hair);
}

/* ---------- 订阅与回访 ---------- */

.page-news .sub-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-news .sub-item {
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--hair);
  border-top: var(--news-mark) solid var(--lime);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-news .sub-item h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: var(--t-4);
  color: var(--ink-deep);
}

.page-news .sub-item p {
  margin: 0;
  font-size: var(--t-2);
  line-height: 1.75;
  color: var(--ink-mid);
}

.page-news .sub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-news .note-band {
    grid-template-columns: 76px minmax(0, 1fr) auto;
    align-items: center;
    gap: 18px;
  }

  .page-news .news-inset {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 18px;
  }

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

@media (min-width: 780px) {
  .page-news .series-grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 28px;
  }
}

@media (min-width: 820px) {
  .page-news .editor-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-news .news-deck {
    grid-template-columns: var(--news-side) minmax(0, 1fr);
    gap: 0 40px;
  }

  .page-news .news-side {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    align-self: start;
    padding: 16px 0 0;
    border-top: 1px solid var(--hair);
  }

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

  .page-news .side-chip {
    width: 100%;
  }

  .page-news .note-title {
    font-size: var(--t-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .note-fold::before,
  .page-news .note-summary::after,
  .page-news .note-excerpt,
  .page-news .side-chip {
    transition: none;
  }
}