.page-news {
  --news-rail: 268px;
}

.page-news a:focus-visible,
.page-news summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-news [id] {
  scroll-margin-top: 104px;
}

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

.page-news .media-frame__caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--brown);
  margin-top: 10px;
}

.page-news .section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin: 8px 0 0;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  border-bottom: 1px solid var(--line);
  padding: clamp(20px, 3vw, 34px) 0 clamp(38px, 6vw, 70px);
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-news .news-hero__copy h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3.35rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin: 14px 0 0;
  max-width: 16em;
}

.page-news .news-hero__copy h1::after {
  content: "";
  display: block;
  width: 62px;
  height: 3px;
  background: var(--gold);
  margin-top: 22px;
}

.page-news .news-hero__copy .lede {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 1.1vw, 1.06rem);
  line-height: 1.8;
  color: var(--brown);
}

.page-news .news-hero__meta {
  list-style: none;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-hero__meta li {
  background: var(--cream);
  padding: 13px 16px;
}

.page-news .news-hero__meta-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--brown);
}

.page-news .news-hero__meta-v {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink);
}

.page-news .news-hero__figure {
  margin: 0;
  box-shadow: var(--shadow-2);
}

/* ---------- 主体：分类轨道 + 日志流 ---------- */
.page-news .news-body {
  padding-top: clamp(38px, 6vw, 72px);
}

.page-news .news-body__grid {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

.page-news .news-rail {
  border-top: 2px solid var(--ink);
  padding-top: 14px;
}

.page-news .news-rail__head {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--brown);
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}

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

.page-news .news-rail__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 10px 2px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color var(--ease), padding-left var(--ease);
}

.page-news .news-rail__link:hover,
.page-news .news-rail__link:focus-visible {
  color: var(--peacock);
  padding-left: 8px;
}

.page-news .news-rail__link[aria-current="location"] {
  color: var(--peacock);
  font-weight: 600;
  padding-left: 8px;
  box-shadow: inset 2px 0 0 var(--gold);
}

.page-news .news-rail__count {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--brown);
}

.page-news .news-rail__figure {
  margin: 22px 0 0;
}

.page-news .news-stream__intro {
  margin: 14px 0 0;
  max-width: 40em;
  color: var(--brown);
  line-height: 1.8;
  font-size: 0.98rem;
}

.page-news .news-stream__figure {
  margin: clamp(22px, 3vw, 32px) 0 0;
  box-shadow: var(--shadow-1);
}

.page-news .log-group {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-news .log-group__title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding-bottom: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.12rem, 1.6vw, 1.34rem);
  color: var(--ink);
}

.page-news .log-group__count {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--peacock);
}

.page-news .log-entry {
  display: grid;
  gap: 4px 20px;
  padding: clamp(16px, 2.2vw, 24px) 0;
  border-top: 1px solid var(--line);
  transition: background var(--ease);
}

.page-news .log-entry:hover {
  background: rgba(232, 207, 163, 0.22);
}

.page-news .log-entry__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-news .log-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--brown);
}

.page-news .log-entry__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.06rem, 1.6vw, 1.26rem);
  line-height: 1.45;
  color: var(--ink);
}

.page-news .log-entry__summary {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.78;
  color: var(--brown);
}

.page-news .log-entry__fold {
  margin-top: 12px;
}

.page-news .log-entry__fold .fold__summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--peacock);
}

.page-news .log-entry__fold .fold__summary::-webkit-details-marker {
  display: none;
}

.page-news .log-entry__fold .fold__summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  text-align: center;
  color: var(--gold);
}

.page-news .log-entry__fold[open] .fold__summary::before {
  content: "−";
}

.page-news .log-entry__fold .fold__body {
  margin: 10px 0 0 2px;
  padding-left: 14px;
  border-left: 2px solid var(--gold-soft);
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .log-entry__fold .fold__body p {
  margin: 0 0 8px;
}

.page-news .log-entry__fold .fold__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 活动解读 ---------- */
.page-news .news-activity {
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(40px, 6vw, 82px) 0;
  background: linear-gradient(155deg, var(--clay) 0%, var(--clay-deep) 100%);
  color: var(--cream);
}

.page-news .news-activity__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-news .news-activity .eyebrow {
  color: var(--gold-soft);
}

.page-news .news-activity .section-title {
  color: var(--cream);
}

.page-news .news-activity__text {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(251, 246, 238, 0.86);
}

.page-news .news-activity__steps {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-activity__steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--cream);
}

.page-news .news-activity__step-num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--gold-soft);
}

.page-news .news-activity__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(251, 246, 238, 0.24);
  border: 1px solid rgba(251, 246, 238, 0.24);
}

.page-news .news-activity__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 13px 15px;
  background: rgba(85, 32, 25, 0.34);
}

.page-news .news-activity__num {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-news .news-activity__label {
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--cream);
}

.page-news .news-activity__note {
  font-size: 0.84rem;
  line-height: 1.65;
  color: rgba(232, 207, 163, 0.92);
}

/* ---------- 版本迭代 ---------- */
.page-news .news-versions {
  padding-top: clamp(48px, 7vw, 96px);
}

.page-news .news-versions__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-news .news-versions__text {
  margin: 14px 0 0;
  max-width: 36em;
  color: var(--brown);
  line-height: 1.85;
  font-size: 0.98rem;
}

.page-news .news-versions__svg {
  display: block;
  width: 100%;
  height: auto;
  margin: clamp(20px, 3vw, 28px) 0 clamp(14px, 2vw, 20px);
}

.page-news .tl-line {
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.6;
  stroke-linecap: square;
}

.page-news .tl-dot {
  fill: var(--cream);
  stroke: var(--clay);
  stroke-width: 2;
}

.page-news .tl-dot--last {
  fill: var(--gold);
  stroke: var(--gold);
}

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

.page-news .news-versions__item {
  border: 1px solid var(--line);
  background: var(--cream);
  box-shadow: var(--shadow-1);
  transition: border-color var(--ease), transform var(--ease);
}

.page-news .news-versions__item:hover,
.page-news .news-versions__item:focus-within {
  border-color: var(--peacock);
  transform: translateY(-2px);
}

.page-news .news-versions__link {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  text-decoration: none;
  color: inherit;
}

.page-news .news-versions__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--peacock);
}

.page-news .news-versions__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.12rem;
  color: var(--ink);
}

.page-news .news-versions__desc {
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--brown);
}

.page-news .news-versions__figure {
  margin: 0;
  box-shadow: var(--shadow-1);
}

/* ---------- 延伸入口 ---------- */
.page-news .news-next {
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(34px, 5vw, 64px) 0;
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-news .news-next__list {
  list-style: none;
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-next__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  background: var(--cream);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.96rem;
  transition: background var(--ease), color var(--ease);
}

.page-news .news-next__link:hover,
.page-news .news-next__link:focus-visible {
  background: var(--gold-soft);
  color: var(--clay-deep);
}

.page-news .news-next__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--brown);
  white-space: nowrap;
}

.page-news .news-top {
  margin: clamp(24px, 3vw, 34px) 0 0;
}

.page-news .news-top a {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--peacock);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .news-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 720px) {
  .page-news .log-entry {
    grid-template-columns: 64px minmax(0, 1fr);
  }

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

@media (min-width: 900px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-news .news-activity__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .news-versions__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

@media (min-width: 1000px) {
  .page-news .news-body__grid {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    align-items: start;
    gap: clamp(36px, 5vw, 72px);
  }

  .page-news .news-rail {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-rail__link,
  .page-news .news-versions__item,
  .page-news .news-next__link,
  .page-news .log-entry {
    transition: none;
  }

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