.page-news {
  --news-dim: #7E8DA6;
  --news-line: rgba(169, 180, 196, .18);
  --news-ink-line: rgba(11, 18, 32, .14);
  background: var(--ink-950);
  color: var(--paper-100);
  overflow-x: clip;
}

.page-news .breadcrumb {
  padding-block: 18px 6px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  padding-block: clamp(14px, 3vw, 28px) clamp(30px, 5vw, 58px);
  align-items: center;
}

.page-news .news-hero__copy .eyebrow {
  color: var(--amber-500);
}

.page-news .news-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -.01em;
  margin: 12px 0 18px;
  color: var(--paper-100);
}

.page-news .news-hero .lede {
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.78;
  color: var(--slate-300);
  max-width: 56ch;
  margin: 0;
}

.page-news .hero-meta {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.page-news .hero-meta li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--news-dim);
}

.page-news .hero-meta .stamp {
  padding: 4px 9px;
  border: 1px solid rgba(232, 163, 61, .5);
  border-radius: var(--radius-sm);
  color: var(--amber-500);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-news .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .news-hero__art {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--news-line);
  background: var(--ink-800);
  box-shadow: var(--shadow-float);
}

.page-news .news-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 18% 12%, rgba(232, 163, 61, .26), transparent 58%);
  pointer-events: none;
}

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

/* ---------- 区块骨架 ---------- */
.page-news .news-section {
  position: relative;
  padding-block: clamp(38px, 6vw, 76px);
}

.page-news .news-section--ink {
  background: linear-gradient(180deg, var(--ink-950) 0%, var(--ink-900) 100%);
  border-top: 1px solid var(--news-line);
}

.page-news .news-section--paper {
  background: var(--paper-100);
  color: var(--ink-950);
}

.page-news .news-section--tail {
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
}

.page-news .section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-news .section-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.32;
  margin: 6px 0 0;
}

.page-news .section-note {
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate-300);
  max-width: 52ch;
  margin: 0;
}

.page-news .news-section--paper .eyebrow {
  color: var(--amber-deep);
}

.page-news .news-section--paper .section-title {
  color: var(--ink-950);
}

.page-news .news-section--paper .section-note {
  color: var(--ink-muted);
}

/* ---------- 筛选 + 条目流 ---------- */
.page-news .news-board {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

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

.page-news .filter-rail {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .filter-title {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--news-dim);
}

.page-news .filter-pills {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-news .filter-pills label {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-strong);
  background: rgba(22, 36, 61, .68);
  color: var(--slate-300);
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .filter-pills label:hover {
  color: var(--paper-100);
  border-color: rgba(232, 163, 61, .7);
  background: var(--ink-800);
}

.page-news .filter-input:focus-visible ~ .filter-rail label[for="f-all"],
.page-news .filter-input:focus-visible ~ .filter-rail label[for="f-updates"],
.page-news .filter-input:focus-visible ~ .filter-rail label[for="f-rules"],
.page-news .filter-input:focus-visible ~ .filter-rail label[for="f-mobile"],
.page-news .filter-input:focus-visible ~ .filter-rail label[for="f-diff"],
.page-news .filter-input:focus-visible ~ .filter-rail label[for="f-notes"] {
  outline: 2px solid var(--amber-500);
  outline-offset: 3px;
}

.page-news #f-all:checked ~ .filter-rail label[for="f-all"],
.page-news #f-updates:checked ~ .filter-rail label[for="f-updates"],
.page-news #f-rules:checked ~ .filter-rail label[for="f-rules"],
.page-news #f-mobile:checked ~ .filter-rail label[for="f-mobile"],
.page-news #f-diff:checked ~ .filter-rail label[for="f-diff"],
.page-news #f-notes:checked ~ .filter-rail label[for="f-notes"] {
  background: var(--coral-500);
  border-color: var(--coral-500);
  color: var(--ink-950);
  font-weight: 600;
}

.page-news #f-updates:checked ~ .news-stream .news-card:not(.t-updates),
.page-news #f-rules:checked ~ .news-stream .news-card:not(.t-rules),
.page-news #f-mobile:checked ~ .news-stream .news-card:not(.t-mobile),
.page-news #f-diff:checked ~ .news-stream .news-card:not(.t-diff),
.page-news #f-notes:checked ~ .news-stream .news-card:not(.t-notes) {
  display: none;
}

.page-news .filter-hint {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--news-dim);
  max-width: 24ch;
}

.page-news .news-stream {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  min-width: 0;
}

.page-news .news-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--news-line);
  border-radius: var(--radius-md);
  background: rgba(22, 36, 61, .74);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-news .news-card:hover,
.page-news .news-card:focus-within {
  border-color: rgba(232, 163, 61, .48);
  transform: translateY(-2px);
}

.page-news .news-card h3 {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.45;
  margin: 0;
  color: var(--paper-100);
}

.page-news .news-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate-300);
}

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

.page-news .tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--teal-400);
  background: rgba(46, 196, 182, .13);
  border: 1px solid rgba(46, 196, 182, .34);
}

.page-news .t-rules .tag,
.page-news .t-diff .tag {
  color: var(--amber-500);
  background: rgba(232, 163, 61, .13);
  border-color: rgba(232, 163, 61, .38);
}

.page-news .t-notes .tag {
  color: var(--amber-200);
  background: rgba(246, 217, 168, .1);
  border-color: rgba(246, 217, 168, .34);
}

.page-news .card-foot {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--news-line);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--news-dim);
}

.page-news .news-card--feature {
  padding: 0;
  overflow: hidden;
  background: var(--ink-900);
  border-color: rgba(232, 163, 61, .34);
}

.page-news .news-card--feature .news-card__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 18px 18px;
}

.page-news .news-card--feature .card-meta {
  color: var(--amber-200);
}

.page-news .news-card--feature h3 {
  font-size: clamp(20px, 3vw, 26px);
}

.page-news .news-card__art {
  margin: 0;
  border-top: 1px solid var(--news-line);
}

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

/* ---------- 双版本对照 ---------- */
.page-news .diff-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-news .diff-intro {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--radius-md);
  background: var(--ink-950);
  color: var(--paper-100);
  border: 1px solid rgba(232, 163, 61, .3);
}

.page-news .diff-intro p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--slate-300);
}

.page-news .diff-intro__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber-500);
}

.page-news .diff-intro .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-news .diff-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-news .diff-item {
  background: rgba(255, 255, 255, .68);
  border: 1px solid var(--news-ink-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-news .diff-item summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-950);
}

.page-news .diff-item summary::-webkit-details-marker {
  display: none;
}

.page-news .diff-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--amber-deep);
}

.page-news .diff-item[open] summary::after {
  content: "–";
}

.page-news .diff-item summary:focus-visible {
  outline: 2px solid var(--coral-500);
  outline-offset: -3px;
}

.page-news .diff-item p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-muted);
}

/* ---------- 栏目主页预览 ---------- */
.page-news .preview-art {
  margin: 0 0 20px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--news-line);
}

.page-news .preview-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .preview-scroller {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 78%);
  gap: 14px;
  overflow-x: auto;
  padding: 4px 4px 18px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  min-width: 0;
}

.page-news .preview-scroller:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: 4px;
  border-radius: var(--radius-md);
}

.page-news .preview-card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--news-line);
  border-top: 3px solid var(--amber-500);
  border-radius: var(--radius-md);
  background: var(--ink-800);
}

.page-news .preview-num {
  margin: 0;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--amber-500);
}

.page-news .preview-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper-100);
}

.page-news .preview-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--slate-300);
}

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

/* ---------- 编辑手记 ---------- */
.page-news .notes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-news .notes-art {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--news-ink-line);
}

.page-news .notes-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .notes-copy .section-title {
  margin-top: 8px;
  margin-bottom: 18px;
}

.page-news .note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-news .note-list li {
  display: flex;
  gap: 12px;
  padding-block: 13px;
  border-bottom: 1px dashed rgba(150, 89, 15, .45);
}

.page-news .note-num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber-deep);
  padding-top: 3px;
}

.page-news .note-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-deep);
}

.page-news .note-list strong {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink-950);
}

.page-news .notes-fine {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--ink-muted);
}

/* ---------- 更新节奏与联系 ---------- */
.page-news .rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-news .rhythm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-news .rhythm-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--news-line);
  border-left: 3px solid var(--teal-400);
  border-radius: var(--radius-sm);
  background: rgba(22, 36, 61, .6);
}

.page-news .rhythm-tag {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--teal-400);
}

.page-news .rhythm-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate-300);
}

.page-news .contact-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-md);
  border: 1px solid rgba(242, 107, 78, .38);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
}

.page-news .contact-card__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber-500);
}

.page-news .contact-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--slate-300);
}

.page-news .contact-card__mail {
  margin: 4px 0 0;
  font-size: clamp(14px, 2.4vw, 17px);
  color: var(--paper-100);
  word-break: break-all;
}

.page-news .contact-card .copy-btn {
  min-height: 44px;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-strong);
  background: transparent;
  color: var(--paper-100);
  font-family: var(--font-body);
  font-size: 13.5px;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .contact-card .copy-btn:hover {
  background: var(--amber-200);
  border-color: var(--amber-200);
  color: var(--ink-950);
}

.page-news .contact-card__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--news-dim);
}

.page-news .contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 6px;
}

.page-news .contact-links a {
  font-size: 14px;
  color: var(--amber-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(246, 217, 168, .45);
  padding-bottom: 2px;
}

.page-news .contact-links a:hover {
  color: var(--coral-500);
  border-bottom-color: var(--coral-500);
}

.page-news .tail-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
}

.page-news .back-top {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-strong);
  color: var(--slate-300);
  font-size: 13.5px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .back-top:hover {
  color: var(--amber-500);
  border-color: var(--amber-500);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-news .section-head {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
  }

  .page-news .section-note {
    text-align: right;
  }
}

@media (min-width: 760px) {
  .page-news .news-stream {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .news-card {
    grid-column: span 6;
  }

  .page-news .news-card.is-wide {
    grid-column: span 4;
  }

  .page-news .news-card.is-shift {
    grid-column: 3 / span 4;
  }

  .page-news .news-card--feature {
    grid-column: span 6;
    flex-direction: row;
    align-items: stretch;
  }

  .page-news .news-card--feature .news-card__body {
    flex: 1 1 58%;
    padding: 24px 22px;
    justify-content: center;
  }

  .page-news .news-card--feature .news-card__art {
    flex: 1 1 42%;
    border-top: 0;
    border-left: 1px solid var(--news-line);
  }

  .page-news .news-card--feature .news-card__art img {
    height: 100%;
    object-fit: cover;
  }

  .page-news .preview-scroller {
    grid-auto-columns: minmax(240px, 300px);
  }
}

@media (min-width: 900px) {
  .page-news .news-hero {
    grid-template-columns: 1.05fr .95fr;
  }

  .page-news .diff-grid {
    grid-template-columns: .9fr 1.1fr;
    align-items: start;
    gap: clamp(20px, 3vw, 36px);
  }

  .page-news .notes-grid {
    grid-template-columns: .9fr 1.1fr;
    gap: clamp(24px, 3.4vw, 44px);
  }

  .page-news .rhythm-grid {
    grid-template-columns: 1.15fr .85fr;
    align-items: start;
    gap: clamp(20px, 3vw, 36px);
  }
}

@media (min-width: 960px) {
  .page-news .news-board {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(24px, 3.2vw, 46px);
    align-items: start;
  }

  .page-news .filter-rail {
    position: sticky;
    top: 104px;
  }

  .page-news .filter-pills {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-news .filter-pills label {
    width: 100%;
    justify-content: flex-start;
  }

  .page-news .filter-hint {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .filter-pills label,
  .page-news .back-top,
  .page-news .contact-card .copy-btn {
    transition: none;
  }

  .page-news .news-card:hover,
  .page-news .news-card:focus-within {
    transform: none;
  }
}