/* ===== 趋势观察页 · page-news ===== */

.page-news {
  display: block;
  overflow-x: clip;
  color: var(--paper);
  background:
    radial-gradient(900px 460px at 82% -6%, rgba(63, 224, 206, .07), transparent 62%),
    radial-gradient(720px 420px at 4% 20%, rgba(201, 162, 39, .07), transparent 66%),
    var(--ink);
}

/* 12 大类色块（页内作用域，供条目与图例继承 --cat） */
.page-news [data-cat="1"] { --cat: var(--cat-1); }
.page-news [data-cat="2"] { --cat: var(--cat-2); }
.page-news [data-cat="3"] { --cat: var(--cat-3); }
.page-news [data-cat="4"] { --cat: var(--cat-4); }
.page-news [data-cat="5"] { --cat: var(--cat-5); }
.page-news [data-cat="6"] { --cat: var(--cat-6); }
.page-news [data-cat="7"] { --cat: var(--cat-7); }
.page-news [data-cat="8"] { --cat: var(--cat-8); }
.page-news [data-cat="9"] { --cat: var(--cat-9); }
.page-news [data-cat="10"] { --cat: var(--cat-10); }
.page-news [data-cat="11"] { --cat: var(--cat-11); }
.page-news [data-cat="12"] { --cat: var(--cat-12); }

/* ---------- 页头 ---------- */

.page-news .news-head {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(84px, 11vw, 136px) 0 clamp(44px, 6vw, 76px);
  border-bottom: 1px solid var(--gold-line);
}

.page-news .news-head__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-news .news-head__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .30;
  filter: saturate(.55) contrast(1.06);
}

.page-news .news-head__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 26, 43, .60) 0%, rgba(11, 26, 43, .88) 58%, var(--ink) 100%);
}

.page-news .news-head__inner {
  position: relative;
}

.page-news .news-head__title {
  margin: 20px 0 0;
  max-width: 16em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.4vw, 68px);
  line-height: 1.08;
  letter-spacing: -.02em;
  text-wrap: balance;
}

.page-news .news-head__lead {
  margin: 22px 0 0;
  max-width: 38em;
  font-size: 17px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-news .news-head__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  color: var(--muted);
}

.page-news .news-head__facts .mono {
  color: var(--gold-soft);
  letter-spacing: .06em;
}

/* ---------- 章节骨架 ---------- */

.page-news .news-block {
  padding: clamp(56px, 8vw, 96px) 0;
}

.page-news .news-block + .news-block {
  border-top: 1px solid rgba(201, 162, 39, .16);
}

.page-news .news-block__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-news .news-block__num {
  padding-bottom: 2px;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--gold);
  border-bottom: 1px solid var(--gold-line);
}

.page-news .news-block__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.16;
  letter-spacing: -.01em;
}

.page-news .news-block__lead {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.76;
  color: var(--muted);
}

/* ---------- 筛选条 ---------- */

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.page-news .filter-btn {
  appearance: none;
  padding: 10px 18px;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1;
  color: var(--paper-2);
  background: rgba(255, 255, 255, .03);
  border: 1px solid rgba(198, 210, 223, .22);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, background .2s ease, box-shadow .2s ease;
}

.page-news .filter-btn:hover {
  color: var(--paper);
  border-color: var(--cyan-dim);
}

.page-news .filter-btn[aria-pressed="true"] {
  color: var(--cyan);
  background: rgba(63, 224, 206, .10);
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(63, 224, 206, .18), 0 0 18px rgba(63, 224, 206, .12);
}

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

/* ---------- 更新条目 ---------- */

.page-news .news-list {
  columns: 1;
  column-gap: 26px;
}

.page-news .news-item {
  break-inside: avoid;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 0 14px;
  margin: 0 0 18px;
  padding: 18px 18px 18px 16px;
  background: linear-gradient(180deg, rgba(19, 39, 61, .92), rgba(19, 39, 61, .68));
  border: 1px solid rgba(198, 210, 223, .10);
  border-left: 3px solid var(--cat, var(--rock));
  border-radius: var(--radius);
  transition: border-color .2s ease, transform .2s ease;
}

.page-news .news-item:hover {
  border-color: rgba(198, 210, 223, .22);
  border-left-color: var(--cat, var(--cyan));
}

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

.page-news .news-item__num {
  padding-top: 3px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cat, var(--rock));
}

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

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 9px;
}

.page-news .news-item__cat {
  padding: 2px 8px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-deep);
  background: var(--cat, var(--rock));
  border-radius: 2px;
}

.page-news .news-item__when {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rock);
}

.page-news .news-item__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.52;
  color: var(--paper);
}

.page-news .news-item__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-news .filter-empty {
  display: none;
  margin: 4px 0 0;
  padding: 26px 20px;
  font-size: 15px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--coral-dim);
  border-radius: var(--radius);
}

.page-news .filter-empty[data-visible="true"] {
  display: block;
}

/* ---------- 版本迭代 ---------- */

.page-news .ver-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-news .ver-figure {
  margin: 0;
  aspect-ratio: 16 / 11;
}

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

.page-news .ver-track {
  position: relative;
  display: grid;
  gap: 22px;
  margin: 0;
  padding: 0 0 0 30px;
  list-style: none;
}

.page-news .ver-track::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--gold-line) 58%, transparent 100%);
}

.page-news .ver-node {
  position: relative;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 18px 20px;
  background: rgba(19, 39, 61, .66);
  border: 1px solid rgba(198, 210, 223, .10);
  border-radius: var(--radius);
}

.page-news .ver-node::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, .16), 0 0 14px rgba(201, 162, 39, .45);
}

.page-news .ver-node--beta::before {
  background: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 107, 74, .16), 0 0 14px rgba(255, 107, 74, .45);
}

.page-news .ver-node__tag {
  padding-top: 2px;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-news .ver-node--beta .ver-node__tag {
  color: var(--coral);
}

.page-news .ver-node__body {
  min-width: 0;
}

.page-news .ver-node__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
}

.page-news .ver-node__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted);
}

/* ---------- 专题系列 ---------- */

.page-news .series-figure {
  margin: 0 0 26px;
  aspect-ratio: 2 / 1;
}

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

.page-news .series-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  background: linear-gradient(160deg, rgba(27, 53, 80, .88), rgba(19, 39, 61, .60));
  border: 1px solid rgba(198, 210, 223, .10);
  border-top: 2px solid var(--gold-line);
  border-radius: var(--radius);
}

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

.page-news .series-card:nth-child(3) {
  border-top-color: var(--cat-3);
}

.page-news .series-card__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
}

.page-news .series-card__text {
  flex: 1;
  margin: 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted);
}

.page-news .series-card__meta {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gold-soft);
}

/* ---------- 标签体系 ---------- */

.page-news .tags-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-news .tags-copy p {
  max-width: 38em;
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-2);
}

.page-news .tag-legend {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px 16px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .tag-legend__item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper-2);
}

.page-news .chip-cat {
  flex: none;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  background: var(--cat, var(--rock));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .28);
}

.page-news .tags-figure {
  margin: 0;
  aspect-ratio: 4 / 3;
}

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

/* ---------- 更新节奏与收束 ---------- */

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

.page-news .rhythm-card {
  padding: 26px 22px;
  background: rgba(7, 19, 34, .58);
  border: 1px solid var(--gold-line);
  border-radius: var(--radius);
}

.page-news .rhythm-card__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold-soft);
}

.page-news .rhythm-card__label {
  display: block;
  margin-top: 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-news .rhythm-card__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-news .news-cta {
  margin-top: clamp(44px, 6vw, 72px);
  padding: clamp(28px, 4vw, 44px);
  background:
    linear-gradient(140deg, rgba(201, 162, 39, .10), rgba(63, 224, 206, .05) 58%, transparent 100%),
    rgba(19, 39, 61, .72);
  border: 1px solid var(--gold-line);
  border-radius: var(--radius);
}

.page-news .news-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.3;
}

.page-news .news-cta__text {
  max-width: 38em;
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-2);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-news .news-list {
    columns: 2;
  }
}

@media (min-width: 900px) {
  .page-news .ver-layout {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-news .ver-figure {
    aspect-ratio: 3 / 4;
  }

  .page-news .tags-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: 52px;
    align-items: start;
  }
}

@media (max-width: 560px) {
  .page-news .news-item {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 0 10px;
    padding: 16px 14px;
  }

  .page-news .news-item__when {
    margin-left: 0;
  }

  .page-news .ver-node {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-news .ver-node__tag {
    padding-top: 0;
  }

  .page-news .filter-btn {
    padding: 9px 14px;
    font-size: 13px;
  }
}
<<<END>>>