.page-news {
  --news-cut: 20px;
  position: relative;
  isolation: isolate;
}

/* ================= 首屏 ================= */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 4.5vw, 56px) 0 clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .45;
  -webkit-mask-image: radial-gradient(130% 100% at 82% 0%, #000 0%, rgba(0, 0, 0, .18) 58%, transparent 80%);
  mask-image: radial-gradient(130% 100% at 82% 0%, #000 0%, rgba(0, 0, 0, .18) 58%, transparent 80%);
}

.page-news .news-hero > .container {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__kicker {
  display: inline-block;
  margin: 0 0 18px;
  padding-left: 14px;
  border-left: 2px solid var(--cinnabar);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--bronze);
}

.page-news .news-hero__title {
  margin: 0 0 22px;
  max-width: 24ch;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(27px, 4.4vw, 56px);
  line-height: 1.2;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-news .news-hero__lede {
  margin: 0 0 26px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper);
}

.page-news .news-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--celadon);
}

.page-news .news-hero__sep {
  width: 24px;
  height: 1px;
  flex: none;
  background: var(--bronze);
}

/* ================= 本季要目 ================= */
.page-news .feature-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-news .feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 22px 26px;
  background: var(--deep);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cinnabar);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--news-cut)), calc(100% - var(--news-cut)) 100%, 0 100%);
}

.page-news .feature-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  letter-spacing: .08em;
  color: var(--bronze);
}

.page-news .feature-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-news .feature-card__text {
  flex: 1;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--celadon);
}

.page-news .feature-card__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 4px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--celadon);
}

/* ================= 标签说明 ================= */
.page-news .tag-guide {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .tag-guide__cell {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px 26px;
  background: var(--ink);
}

.page-news .tag-guide__label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .08em;
  color: var(--paper);
}

.page-news .tag-dot {
  width: 9px;
  height: 9px;
  flex: none;
  transform: rotate(45deg);
  background: var(--bronze);
}

.page-news .tag-dot--catalog { background: var(--bronze-lit); }
.page-news .tag-dot--search { background: var(--jade); }
.page-news .tag-dot--event { background: var(--cinnabar); }

.page-news .tag-guide__freq {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--bronze-lit);
}

.page-news .tag-guide__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--celadon);
}

/* ================= 图片与表格 ================= */
.page-news .news-figure {
  margin: 0 0 30px;
}

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

.page-news .version-table {
  min-width: 720px;
  font-size: 15px;
}

.page-news .version-table td:first-child {
  white-space: nowrap;
  color: var(--bronze);
  letter-spacing: .08em;
}

/* ================= 目录同步 ================= */
.page-news .catalog-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  align-items: start;
}

.page-news .catalog-block__text h3 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-news .catalog-block__text p {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--celadon);
}

.page-news .flow-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
  border-top: 1px solid var(--line);
}

.page-news .flow-list li {
  position: relative;
  counter-increment: flow;
  padding: 16px 0 16px 46px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--celadon);
}

.page-news .flow-list li strong {
  color: var(--paper);
  font-weight: 600;
}

.page-news .flow-list li::before {
  content: "0" counter(flow);
  position: absolute;
  left: 0;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--bronze);
}

/* ================= 条目列表 ================= */
.page-news .archive-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-news .filter-opt {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--line);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--celadon);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-news .filter-opt:hover {
  color: var(--paper);
  border-color: var(--bronze);
}

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

.page-news .filter-opt:has(.filter-input:focus-visible) {
  outline: 2px solid var(--bronze-lit);
  outline-offset: 2px;
}

.page-news .filter-opt:has(.filter-input:checked) {
  color: var(--ink);
  background: var(--bronze);
  border-color: var(--bronze);
  font-weight: 600;
}

.page-news .archive:has(#nf-version:checked) .archive-item:not(.archive-item--version),
.page-news .archive:has(#nf-catalog:checked) .archive-item:not(.archive-item--catalog),
.page-news .archive:has(#nf-search:checked) .archive-item:not(.archive-item--search),
.page-news .archive:has(#nf-event:checked) .archive-item:not(.archive-item--event) {
  display: none;
}

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

.page-news .archive-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .archive-no {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .06em;
  color: var(--bronze);
}

.page-news .archive-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--celadon);
}

.page-news .archive-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-news .archive-summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--celadon);
}

.page-news .archive-more {
  margin-top: 10px;
}

.page-news .archive-more > summary {
  display: inline-block;
  padding: 4px 0;
  list-style: none;
  cursor: pointer;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--bronze-lit);
}

.page-news .archive-more > summary::-webkit-details-marker {
  display: none;
}

.page-news .archive-more > summary::before {
  content: "＋ ";
  font-family: var(--font-mono);
}

.page-news .archive-more[open] > summary::before {
  content: "－ ";
}

.page-news .archive-more > p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--celadon);
}

/* ================= 热词公示 ================= */
.page-news .heat-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
}

.page-news .heat-table {
  min-width: 560px;
  font-size: 14px;
}

.page-news .heat-rank {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--bronze);
}

.page-news .heat-word {
  color: var(--paper);
  font-weight: 500;
}

.page-news .heat-up {
  color: var(--jade);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-news .heat-flat {
  color: var(--celadon);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

/* ================= 订阅与快照 ================= */
.page-news .subscribe-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-news .subscribe-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px;
  background: var(--deep);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--news-cut)), calc(100% - var(--news-cut)) 100%, 0 100%);
}

.page-news .subscribe-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .05em;
  color: var(--paper);
}

.page-news .subscribe-card p {
  flex: 1;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--celadon);
}

.page-news .subscribe-card .btn {
  align-self: flex-start;
}

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

@media (min-width: 768px) {
  .page-news .news-hero__lede {
    font-size: 17px;
  }
}

@media (min-width: 860px) {
  .page-news .feature-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
  .page-news .subscribe-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 760px) {
  .page-news .archive-item {
    grid-template-columns: 124px minmax(0, 1fr);
    gap: 28px;
    padding: 24px 0;
  }
  .page-news .archive-no {
    padding-left: 10px;
    border-left: 2px solid var(--bronze);
  }
  .page-news .archive-title {
    font-size: 18px;
  }
}

@media (min-width: 940px) {
  .page-news .catalog-block {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    gap: 44px;
  }
}

@media (min-width: 1020px) {
  .page-news .heat-block {
    grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
    gap: 40px;
  }
}

@media (min-width: 1080px) {
  .page-news .tag-guide {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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