/* ===== 更新说明页 · 页面专属样式（作用域 .page-news） ===== */

.page-news {
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--font-body);
}

.page-news .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

/* ---------- 首屏 ---------- */
.page-news .page-news__hero {
  position: relative;
  background: linear-gradient(180deg, var(--ink-deep) 0%, var(--ink-2) 100%);
  color: var(--paper);
  padding: clamp(2rem, 5vw, 3.5rem) 0 0;
  overflow: hidden;
}

.page-news .page-news__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(39, 83, 107, 0.34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(39, 83, 107, 0.26) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.6;
  pointer-events: none;
}

.page-news .page-news__hero .wrap {
  position: relative;
  z-index: 1;
}

.page-news .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .breadcrumb__item {
  color: rgba(244, 241, 234, 0.62);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-news .breadcrumb__item[aria-current="page"] {
  color: var(--celadon);
}

.page-news a.breadcrumb__item:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-news .breadcrumb__sep {
  color: rgba(244, 241, 234, 0.3);
}

.page-news .page-head__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(1.95rem, 5.6vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0.7rem 0 1.1rem;
  max-width: 20ch;
}

.page-news .page-head__lede {
  font-size: clamp(0.98rem, 2.2vw, 1.06rem);
  line-height: 1.9;
  color: rgba(244, 241, 234, 0.78);
  max-width: 66ch;
  margin: 0 0 1.8rem;
}

.page-news .hero-facts {
  list-style: none;
  margin: 0;
  padding: 1.4rem 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem 1.6rem;
  border-top: 1px solid rgba(39, 83, 107, 0.7);
}

.page-news .hero-facts__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-news .hero-facts__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(244, 241, 234, 0.58);
}

/* ---------- 通用图框 ---------- */
.page-news .figure-frame {
  margin: 0;
}

.page-news .figure-frame__media {
  overflow: hidden;
  border: var(--hair);
  background: var(--paper-2);
}

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

.page-news .figure-frame__caption {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  padding-top: 0.65rem;
}

.page-news .hero-figure {
  margin: clamp(2rem, 5vw, 3.2rem) 0 0;
}

.page-news .hero-figure .figure-frame__media {
  border: var(--hair);
  background: var(--ink-2);
}

.page-news .hero-figure .figure-frame__caption {
  color: rgba(244, 241, 234, 0.55);
}

/* ---------- 深色区块内的文字 ---------- */
.page-news .section--night,
.page-news .section--deep,
.page-news .section--indigo {
  color: var(--paper);
}

.page-news .section--night .section-title,
.page-news .section--deep .section-title,
.page-news .section--indigo .section-title {
  color: var(--paper);
}

.page-news .section--night .section-lede,
.page-news .section--deep .section-lede,
.page-news .section--indigo .section-lede {
  color: rgba(244, 241, 234, 0.76);
}

/* ---------- 三栏不对称栅格 ---------- */
.page-news .rails-news {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
}

.page-news .rail-news {
  font-family: var(--font-mono);
}

.page-news .rail-news .rail__title {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin: 0 0 0.8rem;
}

.page-news .rail-news .rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-news .rail__link {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-decoration: none;
  padding-left: 0.6rem;
  border-left: 2px solid transparent;
  transition: color 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-news .rail__link:hover {
  color: var(--ink-2);
  border-left-color: var(--line-blue);
}

.page-news .rail__link.is-active {
  color: var(--gold);
  border-left-color: var(--gold);
}

.page-news .rail__list--tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.page-news .rail-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  padding: 0.28rem 0.6rem;
  color: var(--ink-2);
  border: 1px solid var(--celadon);
  background: transparent;
  cursor: pointer;
  transition: background 0.26s var(--ease), color 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-news .rail-tag:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 动态列表与筛选 ---------- */
.page-news .news-stream {
  background: var(--paper);
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.9rem 0 0.4rem;
  padding-bottom: 1.1rem;
  border-bottom: var(--hair-ink);
}

.page-news .news-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-news .news-filter__btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--line-blue);
  padding: 0.42rem 0.85rem;
  cursor: pointer;
  transition: background 0.26s var(--ease), color 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-news .news-filter__btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.page-news .news-filter__input:focus-visible + .news-filter__btn {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-news .news-list {
  border-bottom: var(--hair-ink);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.35rem;
  padding: 1.4rem 0;
  border-top: var(--hair-ink);
}

.page-news .news-item:first-child {
  border-top: none;
}

.page-news .news-item__when {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-news .news-item__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.5;
  color: var(--ink-deep);
  margin: 0 0 0.45rem;
}

.page-news .news-item__desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.88;
  color: var(--graphite);
}

.page-news .news-item__desc a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 179, 163, 0.8);
  transition: color 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-news .news-item__desc a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-news .news-item__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.7rem 0 0;
}

/* 筛选生效（不支持 :has 时全部条目保持可见） */
.page-news:has(#news-f-version:checked) .news-item:not([data-cat="version"]),
.page-news:has(#news-f-taxonomy:checked) .news-item:not([data-cat="taxonomy"]),
.page-news:has(#news-f-service:checked) .news-item:not([data-cat="service"]),
.page-news:has(#news-f-doc:checked) .news-item:not([data-cat="doc"]),
.page-news:has(#news-f-eco:checked) .news-item:not([data-cat="eco"]) {
  display: none;
}

/* 选中态：顶部按钮 */
.page-news:has(#news-f-all:checked) .news-filter__btn[for="news-f-all"],
.page-news:has(#news-f-version:checked) .news-filter__btn[for="news-f-version"],
.page-news:has(#news-f-taxonomy:checked) .news-filter__btn[for="news-f-taxonomy"],
.page-news:has(#news-f-service:checked) .news-filter__btn[for="news-f-service"],
.page-news:has(#news-f-doc:checked) .news-filter__btn[for="news-f-doc"],
.page-news:has(#news-f-eco:checked) .news-filter__btn[for="news-f-eco"],
.page-news:has(#news-diff-only:checked) .news-filter__btn[for="news-diff-only"] {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--ink-deep);
}

/* 选中态：右轨标签 */
.page-news:has(#news-f-all:checked) .rail-tag[for="news-f-all"],
.page-news:has(#news-f-version:checked) .rail-tag[for="news-f-version"],
.page-news:has(#news-f-taxonomy:checked) .rail-tag[for="news-f-taxonomy"],
.page-news:has(#news-f-service:checked) .rail-tag[for="news-f-service"],
.page-news:has(#news-f-doc:checked) .rail-tag[for="news-f-doc"],
.page-news:has(#news-f-eco:checked) .rail-tag[for="news-f-eco"] {
  background: var(--celadon);
  border-color: var(--celadon);
  color: var(--ink-deep);
}

/* ---------- 版本迭代记录 ---------- */
.page-news .iter-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.2rem;
  margin-top: 2.2rem;
}

.page-news .iter-figure .figure-frame__media {
  border: var(--hair);
  background: var(--ink-deep);
}

.page-news .iter-figure .figure-frame__caption {
  color: rgba(244, 241, 234, 0.55);
}

.page-news .iter {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .iter__item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.4rem 0;
  border-top: 1px solid rgba(127, 179, 163, 0.28);
}

.page-news .iter__item:first-child {
  border-top-color: var(--gold);
}

.page-news .iter__no {
  font-family: var(--font-mono);
  font-size: 1.08rem;
  letter-spacing: 0.04em;
  color: var(--gold);
  line-height: 1.6;
}

.page-news .iter__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.12rem;
  color: var(--paper);
  margin: 0 0 0.45rem;
}

.page-news .iter__desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.88;
  color: rgba(244, 241, 234, 0.76);
}

/* ---------- 专题系列 ---------- */
.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 2.2rem;
  background: rgba(127, 179, 163, 0.3);
  border: 1px solid rgba(127, 179, 163, 0.3);
}

.page-news .topic {
  background: var(--indigo);
  padding: 1.7rem 1.5rem 1.5rem;
}

.page-news .topic__title {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--paper);
  margin: 0 0 0.7rem;
}

.page-news .topic__desc {
  margin: 0 0 1.2rem;
  font-size: 0.93rem;
  line-height: 1.88;
  color: rgba(244, 241, 234, 0.76);
}

.page-news .topic__link {
  margin: 0;
}

.page-news .topic-figure {
  margin-top: 2.4rem;
}

.page-news .topic-figure .figure-frame__media {
  border: 1px solid rgba(127, 179, 163, 0.35);
  background: var(--ink-deep);
}

.page-news .topic-figure .figure-frame__caption {
  color: rgba(244, 241, 234, 0.55);
}

/* ---------- 两版说明对照 ---------- */
.page-news .compare-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.2rem;
  margin-top: 2.2rem;
}

.page-news .compare-figure .figure-frame__media {
  border: var(--hair-ink);
  background: var(--paper-2);
}

.page-news .compare-toggle {
  margin-bottom: 1rem;
}

.page-news .compare-wrap {
  overflow-x: auto;
  border: var(--hair-ink);
  background: var(--paper);
}

.page-news .compare {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-news .compare__caption {
  caption-side: top;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 0.8rem 1rem;
}

.page-news .compare thead th {
  background: var(--wine);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-align: left;
  padding: 0.7rem 1rem;
}

.page-news .compare tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--ink-deep);
  white-space: nowrap;
}

.page-news .compare th,
.page-news .compare td {
  padding: 0.8rem 1rem;
  vertical-align: top;
  border-bottom: var(--hair-ink);
}

.page-news .compare tbody tr:nth-child(even) {
  background: var(--paper-2);
}

.page-news:has(#news-diff-only:checked) .compare tbody tr[data-diff="same"] {
  display: none;
}

/* ---------- 更新节奏 ---------- */
.page-news .cadence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.6rem;
  margin-top: 2.2rem;
}

.page-news .cadence {
  border-top: 1px solid rgba(127, 179, 163, 0.36);
  padding-top: 1.3rem;
}

.page-news .cadence__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-news .cadence h3 {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--paper);
  margin: 0.6rem 0 0.6rem;
}

.page-news .cadence p {
  margin: 0 0 1.1rem;
  font-size: 0.95rem;
  line-height: 1.88;
  color: rgba(244, 241, 234, 0.76);
}

.page-news .cadence__cta {
  margin: 0;
}

.page-news .cadence__more {
  margin: 2.4rem 0 0;
  padding-top: 1.4rem;
  border-top: 1px solid rgba(39, 83, 107, 0.7);
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(244, 241, 234, 0.7);
}

.page-news .cadence__more a {
  color: var(--celadon);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 179, 163, 0.5);
  transition: color 0.26s var(--ease), border-color 0.26s var(--ease);
}

.page-news .cadence__more a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-news .news-item {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 1.6rem;
    padding: 1.5rem 0;
  }

  .page-news .news-item__when {
    padding-top: 0.28rem;
  }

  .page-news .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
  }
}

@media (min-width: 900px) {
  .page-news .iter-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 3rem;
    align-items: start;
  }

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

  .page-news .cadence-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.4rem;
  }
}

@media (min-width: 1040px) {
  .page-news .compare-layout {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 2.8rem;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-news .rails-news {
    grid-template-columns: 160px minmax(0, 1fr) 200px;
    gap: 2.8rem;
    align-items: start;
  }

  .page-news .rail-news {
    position: sticky;
    top: 1.6rem;
    align-self: start;
  }

  .page-news .rail__list--tags {
    display: grid;
    gap: 0.45rem;
  }

  .page-news .rail-tag {
    display: block;
    text-align: left;
  }
}
<<<END>>>