/* ============ 动态与更新 · 页面专属样式 ============ */

.page-news {
  --rail-pad: 34px;
  --rail-x: 8px;
  padding-bottom: clamp(40px, 8vw, 96px);
}

/* ---------- 首屏框景 ---------- */
.page-news .news-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: calc(var(--header-offset) + 8px) 0 clamp(22px, 5vw, 42px);
  border-bottom: 1px solid var(--grass);
}

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

.page-news .news-hero__art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-news .news-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 26, 22, 0.8);
}

.page-news .news-hero__frame {
  position: relative;
  border: 1px solid var(--grass-line);
  border-radius: var(--radius);
  padding: clamp(18px, 4vw, 32px);
  background: rgba(11, 36, 32, 0.6);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-news .news-hero__frame::before,
.page-news .news-hero__frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid var(--cyan);
  pointer-events: none;
}

.page-news .news-hero__frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
  border-top-left-radius: var(--radius);
}

.page-news .news-hero__frame::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
  border-bottom-right-radius: var(--radius);
}

.page-news .news-hero__eyebrow {
  margin: 16px 0 10px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-news .news-hero h1 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .news-hero__lead {
  margin: 0 0 24px;
  max-width: 64ch;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--grass);
  border-radius: var(--radius-sm);
  background: var(--grass-line);
  overflow: hidden;
}

.page-news .news-hero__stats > div {
  padding: 12px 14px;
  background: rgba(6, 26, 22, 0.74);
}

.page-news .news-hero__stats dt {
  margin: 0 0 5px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-news .news-hero__stats dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14px;
  letter-spacing: 0.02em;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-news .news-num {
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
}

/* ---------- 粘性刻度条 ---------- */
.page-news .news-ruler {
  position: sticky;
  top: 0;
  z-index: 30;
  margin-bottom: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--grass);
  border-bottom: 1px solid var(--grass);
  background: rgba(6, 26, 22, 0.95);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-news .news-ruler__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 10px;
  padding-bottom: 10px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .news-ruler__inner::-webkit-scrollbar {
  display: none;
}

.page-news .news-ruler__label {
  flex: none;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-news .news-ruler__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .news-ruler__list .chip {
  flex: none;
  display: inline-block;
  padding: 6px 13px;
  border: 1px solid var(--grass);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--text-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}

.page-news .news-ruler__list .chip:hover,
.page-news .news-ruler__list .chip:focus-visible {
  color: var(--night);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-news .news-ruler__stamp {
  flex: none;
  margin-left: auto;
  padding-left: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--mist);
  white-space: nowrap;
}

/* ---------- 时间轴 ---------- */
.page-news .news-timeline .section__desc a,
.page-news .note__body a,
.page-news .series-card a,
.page-news .tabpanel a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .stage-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .stage-list::before {
  content: "";
  position: absolute;
  left: var(--rail-x);
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    var(--cyan) 0%,
    var(--grass) 14%,
    var(--grass) 86%,
    var(--amber) 100%
  );
  -webkit-mask-image: repeating-linear-gradient(180deg, #000 0 6px, transparent 6px 12px);
  mask-image: repeating-linear-gradient(180deg, #000 0 6px, transparent 6px 12px);
}

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

.page-news .stage + .stage {
  margin-top: clamp(20px, 3.4vw, 32px);
}

.page-news .stage__band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  margin-bottom: 16px;
  padding: 14px 16px 14px var(--rail-pad);
  border: 1px solid var(--grass);
  border-radius: var(--radius-sm);
  background: linear-gradient(90deg, rgba(11, 36, 32, 0.94) 0%, rgba(6, 26, 22, 0.35) 100%);
}

.page-news .stage__no {
  flex: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-news .stage__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 4.2vw, 28px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .stage__note {
  flex: 1 0 100%;
  margin: 6px 0 0;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-news .note-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .note {
  position: relative;
  padding-left: var(--rail-pad);
}

.page-news .note::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cat, var(--cyan));
  box-shadow: 0 0 0 3px var(--night);
}

.page-news .note--rule { --cat: var(--flare); }
.page-news .note--ref { --cat: var(--cyan); }
.page-news .note--topic { --cat: var(--amber); }
.page-news .note--ver { --cat: var(--mist); }
.page-news .note--misc { --cat: var(--text-soft); }

.page-news .note__card {
  position: relative;
  padding: 14px 16px;
  border: 1px solid var(--grass);
  border-left: 3px solid var(--cat, var(--cyan));
  border-radius: var(--radius-sm);
  background: var(--night-2);
  transition: transform var(--dur-fast) var(--ease),
    box-shadow var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}

.page-news .note__card:hover {
  transform: translateY(-2px);
  border-color: var(--cat, var(--cyan));
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.42);
}

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

.page-news .note__cat {
  flex: none;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--night);
  background: var(--cat, var(--cyan));
}

.page-news .note__when {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--amber);
  white-space: nowrap;
}

.page-news .note__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-news .note__fold > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  list-style: none;
}

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

.page-news .note__fold > summary::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 5px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform var(--dur-fast) var(--ease);
}

.page-news .note__fold[open] > summary::before {
  transform: rotate(90deg);
}

.page-news .note__body {
  margin: 10px 0 0;
  padding-top: 10px;
  max-width: 68ch;
  border-top: 1px dashed var(--grass);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  margin-top: clamp(40px, 7vw, 76px);
}

.page-news .news-series__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .series-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--paper-2);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.page-news .series-card__tag {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--flare-ink);
}

.page-news .series-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 3vw, 24px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .series-card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(28, 20, 16, 0.84);
}

.page-news .series-card ul {
  margin: 0 0 14px;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(28, 20, 16, 0.84);
}

.page-news .series-card li + li {
  margin-top: 4px;
}

.page-news .series-card__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin: 4px 0 14px;
  border: 1px solid var(--paper-2);
  border-radius: var(--radius-sm);
}

.page-news .series-card--c {
  background: rgba(11, 36, 32, 0.72);
  border-color: var(--grass);
}

.page-news .series-card--c h3 {
  color: var(--paper);
}

.page-news .series-card--c p,
.page-news .series-card--c li {
  color: var(--text-soft);
}

.page-news .series-card--c a {
  color: var(--cyan);
}

/* ---------- 标签页回看 ---------- */
.page-news .news-review {
  margin-top: clamp(40px, 7vw, 76px);
}

.page-news .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-news .tab {
  padding: 9px 16px;
  border: 1px solid var(--grass);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-soft);
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}

.page-news .tab:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-news .tab[aria-selected="true"],
.page-news .tab.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--night);
}

.page-news .tabpanel {
  padding: clamp(16px, 2.6vw, 26px);
  border: 1px solid var(--grass);
  border-radius: var(--radius);
  background: var(--night-2);
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--text-soft);
}

.page-news .tabpanel p {
  margin: 0 0 12px;
  max-width: 72ch;
}

.page-news .tabpanel p:last-child {
  margin-bottom: 0;
}

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

/* ---------- 修订说明的写法 ---------- */
.page-news .news-convention {
  margin-top: clamp(40px, 7vw, 76px);
}

.page-news .news-convention__panel {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  padding: clamp(18px, 3vw, 32px);
  border: 1px solid var(--paper-2);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}

.page-news .news-convention__panel h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 30px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-news .news-convention__panel p {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(28, 20, 16, 0.84);
}

.page-news .news-convention__list {
  display: grid;
  gap: 8px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.page-news .news-convention__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(28, 20, 16, 0.84);
}

.page-news .news-convention__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--flare);
}

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

.page-news .news-convention__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  border: 1px solid var(--paper-2);
  border-radius: var(--radius-sm);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news {
    --rail-pad: 42px;
  }

  .page-news .note:nth-child(3n + 2) .note__card {
    margin-right: 12%;
  }

  .page-news .note:nth-child(4n) .note__card {
    margin-right: 24%;
  }

  .page-news .news-series__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-news .series-card--a { grid-column: span 7; }
  .page-news .series-card--b { grid-column: span 5; }
  .page-news .series-card--c { grid-column: 1 / -1; }

  .page-news .series-card--c {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(20px, 3vw, 34px);
    align-items: start;
  }

  .page-news .series-card--c ul {
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-news .news-convention__panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }
}

@media (max-width: 719px) {
  .page-news .news-ruler__stamp {
    display: none;
  }

  .page-news .news-ruler__label {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .note__card,
  .page-news .news-ruler__list .chip,
  .page-news .tab,
  .page-news .note__fold > summary::before {
    transition: none;
  }

  .page-news .note__card:hover {
    transform: none;
  }
}