.page-news {
  --news-line: rgba(245, 241, 232, 0.10);
  --news-line-strong: rgba(245, 241, 232, 0.22);
  --news-soft: rgba(245, 241, 232, 0.05);
  color: var(--paper);
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, rgba(245, 241, 232, 0.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 241, 232, 0.028) 1px, transparent 1px);
  background-size: 72px 72px;
  font-family: var(--font-sans);
}

.page-news .section {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
}

.page-news .section__title {
  font-size: clamp(1.5rem, 3.6vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin: 0 0 0.6rem;
}

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

.page-news .section__note {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
  max-width: 60ch;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  padding-top: 1.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.page-news .breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}

.page-news .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

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

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: clamp(1.75rem, 4vw, 3rem) 0 clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
}

.page-news .news-hero__eyebrow {
  color: var(--amber);
  letter-spacing: 0.14em;
  margin: 0;
}

.page-news .news-hero__title {
  font-size: clamp(2rem, 7vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin: 0;
  word-break: break-word;
}

.page-news .news-hero__aside {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

.page-news .news-hero__lede {
  font-size: clamp(0.98rem, 2.2vw, 1.1rem);
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  list-style: none;
  margin: 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--news-line);
}

.page-news .news-hero__stats li {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
}

.page-news .news-hero__num {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--amber);
  line-height: 1;
}

.page-news .news-hero__label {
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.page-news .news-hero__figure {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
}

.page-news .news-hero__figure .media-frame__inner { aspect-ratio: 2 / 1; }

/* ---------- 通用媒体框 ---------- */
.page-news .media-frame {
  margin: 0;
  display: block;
}

.page-news .media-frame__inner {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--news-line);
  background: var(--ink-2);
}

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

.page-news .media-frame__caption {
  padding-top: 0.7rem;
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--muted);
  line-height: 1.7;
}

/* ---------- 评测流 ---------- */
.page-news .feed-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.5rem);
}

.page-news .feed-head { margin-bottom: 1.6rem; }

.page-news .feed-head__note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-news .filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

.page-news .filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-news .filter-chips label {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--news-line-strong);
  border-radius: var(--radius);
  font-size: 0.83rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .filter-chips label:hover {
  color: var(--paper);
  border-color: var(--amber);
}

.page-news #flt-all:checked ~ .filter-chips label[for="flt-all"],
.page-news #flt-rule:checked ~ .filter-chips label[for="flt-rule"],
.page-news #flt-version:checked ~ .filter-chips label[for="flt-version"],
.page-news #flt-vendor:checked ~ .filter-chips label[for="flt-vendor"],
.page-news #flt-stability:checked ~ .filter-chips label[for="flt-stability"] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  font-weight: 600;
}

.page-news .filter-input:focus-visible ~ .filter-chips label[for="flt-all"],
.page-news .filter-input:focus-visible ~ .filter-chips label[for="flt-rule"],
.page-news .filter-input:focus-visible ~ .filter-chips label[for="flt-version"],
.page-news .filter-input:focus-visible ~ .filter-chips label[for="flt-vendor"],
.page-news .filter-input:focus-visible ~ .filter-chips label[for="flt-stability"] {
  outline: 1px solid var(--cyan);
  outline-offset: 2px;
}

.page-news #flt-rule:checked ~ .feed-list .feed-item:not(.cat-rule),
.page-news #flt-version:checked ~ .feed-list .feed-item:not(.cat-version),
.page-news #flt-vendor:checked ~ .feed-list .feed-item:not(.cat-vendor),
.page-news #flt-stability:checked ~ .feed-list .feed-item:not(.cat-stability) {
  display: none;
}

.page-news .feed-list {
  margin-top: 1.5rem;
  border-bottom: 1px solid var(--news-line);
}

.page-news .feed-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 1rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--news-line);
  transition: border-color 0.25s var(--ease);
}

.page-news .feed-item:hover { border-top-color: rgba(232, 163, 61, 0.6); }

.page-news .feed-item__swatch {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  flex: none;
  border: 1px solid var(--news-line-strong);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--news-soft);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news .feed-item:hover .feed-item__swatch {
  transform: translateY(-2px);
  border-color: var(--amber);
}

.page-news .feed-item.cat-rule .feed-item__swatch {
  background: linear-gradient(140deg, rgba(232, 163, 61, 0.26), rgba(232, 163, 61, 0.02) 72%);
}

.page-news .feed-item.cat-version .feed-item__swatch {
  background: linear-gradient(140deg, rgba(45, 226, 230, 0.22), rgba(45, 226, 230, 0.02) 72%);
}

.page-news .feed-item.cat-vendor .feed-item__swatch {
  background: linear-gradient(140deg, rgba(14, 124, 123, 0.45), rgba(14, 124, 123, 0.02) 72%);
}

.page-news .feed-item.cat-stability .feed-item__swatch {
  background: linear-gradient(140deg, rgba(242, 193, 78, 0.24), rgba(242, 193, 78, 0.02) 72%);
}

.page-news .feed-item__body { min-width: 0; }

.page-news .feed-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.5rem;
}

.page-news .feed-item__time {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-news .feed-item__title {
  font-size: 1.04rem;
  line-height: 1.45;
  letter-spacing: -0.01em;
  font-weight: 700;
  margin: 0 0 0.45rem;
  color: var(--paper);
}

.page-news .feed-item__excerpt {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.page-news .feed-item__more {
  display: inline-block;
  margin-top: 0.65rem;
  font-size: 0.79rem;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 163, 61, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .feed-item__more:hover {
  color: var(--amber-2);
  border-bottom-color: var(--amber-2);
}

.page-news .feed-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.75rem;
}

/* ---------- 侧栏 ---------- */
.page-news .feed-side {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

.page-news .side-block {
  border: 1px solid var(--news-line);
  background: linear-gradient(180deg, rgba(36, 39, 43, 0.9), rgba(26, 28, 31, 0.6));
  padding: 1.35rem 1.25rem 1.4rem;
}

.page-news .side-block__title {
  font-size: 0.94rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 0.6rem;
}

.page-news .side-block__note {
  font-size: 0.81rem;
  line-height: 1.7;
  color: var(--muted);
  margin: 0 0 1rem;
}

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

.page-news .topic-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--news-line);
  border-left-width: 3px;
  color: var(--paper);
  font-size: 0.84rem;
  text-decoration: none;
  transition: border-color 0.22s var(--ease), background-color 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-news .topic-chip--amber { border-left-color: rgba(232, 163, 61, 0.8); }
.page-news .topic-chip--cyan { border-left-color: rgba(45, 226, 230, 0.75); }

.page-news .topic-chip:hover {
  transform: translateX(3px);
  background: rgba(245, 241, 232, 0.05);
}

.page-news .topic-chip--amber:hover { border-color: var(--amber); }
.page-news .topic-chip--cyan:hover { border-color: var(--cyan); }

.page-news .topic-chip__count {
  font-size: 0.71rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  flex: none;
}

.page-news .rhythm-list {
  margin: 0 0 1.1rem;
  display: grid;
  gap: 0.5rem;
}

.page-news .rhythm-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--news-line);
}

.page-news .rhythm-row dt {
  font-size: 0.81rem;
  color: var(--muted);
}

.page-news .rhythm-row dd {
  margin: 0;
  font-size: 0.86rem;
  color: var(--amber);
}

.page-news .side-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.page-news .side-links a {
  font-size: 0.81rem;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.28);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-news .side-links a:hover {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 规则直读 ---------- */
.page-news .band--rule {
  border-top: 1px solid var(--news-line);
  border-bottom: 1px solid var(--news-line);
  background:
    radial-gradient(115% 95% at 0% 0%, rgba(74, 30, 43, 0.7), rgba(26, 28, 31, 0) 62%),
    linear-gradient(180deg, rgba(26, 28, 31, 0.4), rgba(26, 28, 31, 0.9));
}

.page-news .rule-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.5rem);
}

.page-news .rule-intro__lede {
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 clamp(1.5rem, 3vw, 2rem);
  max-width: 60ch;
}

.page-news .rule-intro__figure .media-frame__inner { aspect-ratio: 1 / 1; }

.page-news .rule-row {
  border: 1px solid var(--news-line);
  background: rgba(26, 28, 31, 0.58);
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-news .rule-row + .rule-row { margin-top: 0.65rem; }

.page-news .rule-row[open] {
  border-color: rgba(232, 163, 61, 0.5);
  background: rgba(36, 39, 43, 0.85);
}

.page-news .rule-row__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--paper);
}

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

.page-news .rule-row__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--amber);
}

.page-news .rule-row[open] .rule-row__head::after { content: "\2212"; }

.page-news .rule-row__box {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  border: 1px solid var(--news-line-strong);
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .rule-row[open] .rule-row__box {
  border-color: var(--amber);
  background: rgba(232, 163, 61, 0.16);
}

.page-news .rule-row[open] .rule-row__box::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 3px;
  width: 6px;
  height: 6px;
  background: var(--amber);
}

.page-news .rule-row__body {
  padding: 0 1.1rem 1.1rem 2.85rem;
  font-size: 0.87rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-news .rule-row__body p { margin: 0; }

/* ---------- 版本时间线 ---------- */
.page-news .band--version {
  border-bottom: 1px solid var(--news-line);
  background: linear-gradient(180deg, rgba(13, 59, 59, 0.55), rgba(26, 28, 31, 0) 58%);
}

.page-news .version-track {
  list-style: none;
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1.1rem;
}

.page-news .version-node {
  position: relative;
  padding: 1.2rem 1.1rem 1.3rem;
  border: 1px solid var(--news-line);
  background: rgba(26, 28, 31, 0.6);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-news .version-node::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 30px;
  height: 2px;
  background: var(--line);
}

.page-news .version-node:hover {
  border-color: rgba(45, 226, 230, 0.65);
  background: rgba(36, 39, 43, 0.92);
  transform: translateY(-3px);
}

.page-news .version-node__num {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-news .version-node__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

.page-news .version-node__text {
  font-size: 0.85rem;
  line-height: 1.78;
  color: var(--muted);
  margin: 0;
}

.page-news .version-node--key {
  border-color: rgba(232, 163, 61, 0.55);
}

.page-news .version-node--key::before { background: var(--amber); }

.page-news .version-node--key .version-node__num { color: var(--amber); }

.page-news .version-figure {
  margin: clamp(1.75rem, 3.5vw, 2.75rem) 0 0;
}

.page-news .version-figure .media-frame__inner { aspect-ratio: 5 / 2; }

/* ---------- 厂商观察 ---------- */
.page-news .band--vendors {
  border-bottom: 1px solid var(--news-line);
}

.page-news .vendor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
}

.page-news .vendor-card {
  padding: 1.35rem 1.2rem 1.45rem;
  border: 1px solid var(--news-line);
  background: linear-gradient(180deg, rgba(36, 39, 43, 0.85), rgba(26, 28, 31, 0.55));
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .vendor-card:hover {
  border-color: rgba(45, 226, 230, 0.55);
  transform: translateY(-4px);
}

.page-news .vendor-card__num {
  display: block;
  margin-bottom: 0.8rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-news .vendor-card h3 {
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

.page-news .vendor-card p {
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

.page-news .vendor-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
}

.page-news .vendor-figure .media-frame__inner { aspect-ratio: 8 / 5; }

.page-news .vendor-foot__text p {
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 1.25rem;
  max-width: 56ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .vendor-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 760px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 6.5fr) minmax(0, 4.5fr);
    align-items: end;
    column-gap: 3rem;
  }
  .page-news .news-hero__eyebrow { grid-column: 1 / -1; }
  .page-news .news-hero__title { grid-column: 1 / 2; }
  .page-news .news-hero__aside { grid-column: 2 / 3; }

  .page-news .feed-item:nth-child(even) { padding-left: 2.25rem; }
  .page-news .feed-item:nth-child(odd) { padding-right: 1.25rem; }
}

@media (min-width: 860px) {
  .page-news .version-track { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.4rem; }
  .page-news .vendor-foot { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 2.5rem; }
}

@media (min-width: 920px) {
  .page-news .rule-layout {
    grid-template-columns: minmax(0, 4.2fr) minmax(0, 5.4fr);
    align-items: start;
    gap: 3.5rem;
  }
}

@media (min-width: 1020px) {
  .page-news .feed-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }
  .page-news .feed-side {
    position: sticky;
    top: 5.5rem;
  }
  .page-news .vendor-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 480px) {
  .page-news .feed-item {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 0.85rem;
  }
  .page-news .feed-item__swatch {
    width: 38px;
    height: 38px;
    font-size: 0.7rem;
  }
  .page-news .rule-row__body { padding-left: 1.1rem; }
  .page-news .news-hero__stats { gap: 0.6rem; }
  .page-news .news-hero__num { font-size: 1.3rem; }
}