.page-news {
  --news-line: var(--rock);
  --news-node: var(--clay);
  background: var(--paper);
  color: var(--graphite);
}

.page-news [hidden] {
  display: none !important;
}

.page-news .blk {
  position: relative;
  padding: 46px 0;
}

.page-news .blk--white {
  background: var(--white);
  border-top: 1px solid var(--rock);
  border-bottom: 1px solid var(--rock);
}

.page-news .blk--ink {
  background: var(--ink);
  color: var(--paper);
}

.page-news .blk--ink h2,
.page-news .blk--ink .eyebrow {
  color: var(--white);
}

.page-news .blk--ink .lede {
  color: rgba(246, 241, 231, 0.78);
}

.page-news .blk__head {
  max-width: 64ch;
  margin-bottom: 26px;
}

.page-news h1 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.2vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news h2 {
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-news h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
  color: var(--ink);
}

.page-news p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-news .blk--ink p {
  color: rgba(246, 241, 231, 0.86);
}

.page-news .breadcrumb {
  padding-top: 18px;
}

/* ---------- hero ---------- */
.page-news .news-hero {
  padding: 6px 0 30px;
}

.page-news .news-hero__grid {
  display: grid;
  gap: 26px;
  align-items: center;
}

.page-news .news-hero__visual {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--rock);
  background: var(--white);
  box-shadow: 0 18px 40px rgba(11, 31, 58, 0.12);
}

.page-news .news-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-news .news-hero__copy .lede {
  max-width: 52ch;
}

.page-news .news-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 22px 0 0;
  padding: 0;
}

.page-news .news-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--rock);
  border-radius: 999px;
  background: var(--white);
  font-size: 14px;
  color: var(--mist);
}

.page-news .news-hero__meta .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--signal-dark);
  font-weight: 700;
}

/* ---------- 筛选按钮 ---------- */
.page-news .filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 24px;
}

.page-news .filter {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding: 9px 15px;
  border: 1px solid var(--rock);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.page-news .filter:hover {
  transform: translateY(-2px);
  border-color: var(--signal);
}

.page-news .filter[aria-pressed="true"] {
  border-color: var(--signal);
  background: rgba(255, 106, 0, 0.12);
  color: var(--signal-dark);
  font-weight: 700;
}

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

/* ---------- 时间轴 ---------- */
.page-news .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--signal) 0%, var(--rock) 22%, var(--rock) 100%);
}

.page-news .tl-item {
  position: relative;
  padding-left: 42px;
  margin-bottom: 12px;
}

.page-news .tl-item::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 22px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--news-node);
  box-shadow: 0 0 0 5px var(--paper);
}

.page-news .tl-item--major::before {
  left: 4px;
  top: 19px;
  width: 18px;
  height: 18px;
  background: var(--yellow);
  box-shadow: 0 0 0 5px var(--paper), 0 0 0 7px rgba(255, 106, 0, 0.25);
}

.page-news .entry {
  background: var(--white);
  border: 1px solid var(--rock);
  border-radius: var(--radius-m);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.page-news .entry[open] {
  border-color: var(--signal);
  box-shadow: 0 8px 22px rgba(11, 31, 58, 0.08);
}

.page-news .entry__summary {
  display: grid;
  gap: 7px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .entry__summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: var(--radius-m);
}

.page-news .entry__ver {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--graphite);
  background: var(--yellow);
  border-radius: 6px;
  padding: 3px 8px;
  font-weight: 700;
}

.page-news .tl-item--major .entry__ver {
  font-size: 13px;
  padding: 5px 11px;
}

.page-news .entry__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .entry__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-news .entry__body {
  padding: 4px 16px 18px;
  border-top: 1px dashed var(--rock);
  margin-top: 6px;
}

.page-news .entry__facts {
  margin: 14px 0 0;
}

.page-news .entry__facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--signal-dark);
  margin-top: 14px;
}

.page-news .entry__facts dt:first-child {
  margin-top: 0;
}

.page-news .entry__facts dd {
  margin: 5px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-news .chip {
  display: inline-block;
  margin: 4px 6px 0 0;
  padding: 3px 11px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  border: 1px solid currentColor;
}

.page-news .chip--signal {
  color: var(--signal-dark);
  background: rgba(255, 106, 0, 0.1);
}

.page-news .chip--moss {
  color: var(--moss);
  background: rgba(92, 122, 82, 0.12);
}

.page-news .chip--teal {
  color: var(--teal);
  background: rgba(14, 124, 107, 0.1);
}

.page-news .chip--magenta {
  color: var(--magenta);
  background: rgba(194, 24, 91, 0.08);
}

/* ---------- 分类卡片 ---------- */
.page-news .catgrid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-news .catcard {
  --card-tone: var(--signal);
  padding: 20px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--rock);
  border-top: 4px solid var(--card-tone);
  border-radius: var(--radius-m);
}

.page-news .catcard--nav { --card-tone: var(--signal); }
.page-news .catcard--col { --card-tone: var(--moss); }
.page-news .catcard--fn { --card-tone: var(--teal); }
.page-news .catcard--mob { --card-tone: var(--magenta); }

.page-news .catcard__tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--card-tone);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-news .catcard--nav .catcard__tag { color: var(--white); }

.page-news .catcard p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
}

.page-news .catcard__hint {
  color: var(--mist);
  font-size: 13.5px;
  margin-bottom: 0;
}

/* ---------- 双栏区 ---------- */
.page-news .split {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-news .split__copy p {
  max-width: 56ch;
}

.page-news .split__fine {
  font-size: 14px;
  color: var(--mist);
  margin-top: 16px;
}

.page-news .split__fine a {
  color: var(--signal-dark);
  text-decoration: underline;
}

.page-news .split__link {
  margin: 20px 0 0;
}

.page-news .phone-shot {
  margin: 0 auto;
  max-width: 300px;
  padding: 14px;
  border-radius: 32px;
  background: var(--ink);
  box-shadow: 0 20px 44px rgba(11, 31, 58, 0.2);
}

.page-news .phone-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 20px;
}

.page-news .shot {
  margin: 0;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--rock);
  background: var(--white);
}

.page-news .shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.page-news .checklist {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .checklist li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-news .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 12px;
  height: 3px;
  border-radius: 2px;
  background: var(--signal);
}

.page-news .checklist strong {
  color: var(--ink);
}

.page-news .linkrow {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
}

.page-news .linkrow .btn {
  padding: 11px 18px;
}

/* ---------- 版本刻度尺 ---------- */
.page-news .ruler-wrap {
  margin: 0 0 30px;
  padding: 18px 8px 8px;
  border: 1px solid rgba(246, 241, 231, 0.22);
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, 0.04);
  color: var(--paper);
}

.page-news .ruler {
  display: block;
  width: 100%;
  height: auto;
  color: var(--paper);
}

.page-news .ruler__minor line {
  stroke: rgba(246, 241, 231, 0.45);
  stroke-width: 2;
}

.page-news .ruler__major line {
  stroke: var(--yellow);
  stroke-width: 3;
}

.page-news .ruler__major circle {
  fill: var(--yellow);
}

.page-news .ruler__caption {
  padding: 8px 10px 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(246, 241, 231, 0.7);
}

.page-news .cadence {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-news .cadence__item {
  padding: 18px 18px 16px;
  border-radius: var(--radius-m);
  border: 1px solid rgba(246, 241, 231, 0.22);
  background: rgba(255, 255, 255, 0.05);
}

.page-news .cadence__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--yellow);
}

.page-news .cadence__item p:last-child {
  margin-bottom: 0;
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 四要素 ---------- */
.page-news .factorlist {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-news .factorlist li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 10px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rock);
  font-size: 15px;
  line-height: 1.75;
}

.page-news .factorlist li:last-child {
  border-bottom: 0;
}

.page-news .factorlist__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--signal-dark);
  padding-top: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .catgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .entry__summary {
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: center;
    column-gap: 16px;
    padding: 16px 20px;
  }

  .page-news .entry__meta {
    grid-column: 2;
  }

  .page-news .entry__body {
    padding: 6px 20px 20px;
  }

  .page-news .entry__facts {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 6px 16px;
  }

  .page-news .entry__facts dt,
  .page-news .entry__facts dt:first-child {
    margin-top: 8px;
  }

  .page-news .entry__facts dd {
    margin-top: 8px;
  }
}

@media (min-width: 760px) {
  .page-news .blk {
    padding: 60px 0;
  }

  .page-news .tl-item {
    padding-left: 52px;
    margin-bottom: 14px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    padding: 22px 0 42px;
  }

  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .split {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-news .split--reverse .shot {
    order: 2;
  }

  .page-news .split--reverse .split__copy {
    order: 1;
  }

  .page-news .cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1040px) {
  .page-news .catgrid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .filter,
  .page-news .entry {
    transition: none;
  }

  .page-news .filter:hover {
    transform: none;
  }
}