.page-news {
  --news-bd: 1px solid var(--line);
  --news-t: 160ms cubic-bezier(.22, .61, .36, 1);
  color: var(--paper);
  padding-bottom: clamp(32px, 5vw, 72px);
}

.page-news .breadcrumb {
  margin: 0 0 26px;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 页头 ---------- */
.page-news .journal-head {
  position: relative;
  display: grid;
  gap: 16px;
  padding-bottom: 30px;
  border-bottom: var(--news-bd);
}

.page-news .journal-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(240px, 45%);
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--amber) 50%, var(--rose));
}

.page-news .journal-head h1 {
  margin: 0;
  font-family: var(--ff-display);
  font-size: clamp(38px, 8vw, var(--fs-56));
  font-weight: 800;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--white);
}

.page-news .journal-head__lead {
  margin: 0;
  max-width: 680px;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--mist);
}

.page-news .journal-head__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--mist);
}

.page-news .journal-head__meta li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-news .journal-head__meta b {
  font-family: var(--ff-mono);
  font-weight: 500;
  font-size: var(--fs-14);
  color: var(--paper);
}

/* ---------- 本期速览 ---------- */
.page-news .news-overview {
  align-items: start;
}

.page-news .sum-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-news .sum-card {
  display: grid;
  gap: 8px;
  padding: 18px 20px 20px;
  transition: transform var(--news-t), box-shadow var(--news-t);
}

.page-news .sum-card:hover {
  transform: translateY(-2px);
}

.page-news .sum-card__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
}

.page-news .sum-card__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--white);
  letter-spacing: .01em;
}

.page-news .sum-card__range {
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  color: var(--mist);
  white-space: nowrap;
}

.page-news .sum-card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--mist);
}

.page-news .news-heat {
  margin-top: 22px;
}

@media (min-width: 960px) {
  .page-news .news-heat {
    margin-top: 54px;
  }
}

/* ---------- 列表区 ---------- */
.page-news .journal-intro {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.page-news .log-banner {
  margin-bottom: 34px;
}

.page-news .journal-body {
  display: grid;
  gap: 26px;
}

.page-news .journal-side {
  position: relative;
}

.page-news .journal-filter__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .journal-side__title {
  margin: 0 0 12px;
  font-family: var(--ff-display);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .journal-side__opts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .jopt {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 9px 14px 9px 18px;
  border: var(--news-bd);
  background: rgba(21, 24, 29, .55);
  font-size: var(--fs-14);
  color: var(--mist);
  cursor: pointer;
  transition: color var(--news-t), border-color var(--news-t), background-color var(--news-t);
}

.page-news .jopt::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--line);
  transition: background-color var(--news-t);
}

.page-news .jopt--p::before { background: var(--cyan); }
.page-news .jopt--r::before { background: var(--amber); }
.page-news .jopt--v::before { background: var(--rose); }

.page-news .journal-body:has(#jf-p:checked) .jopt--p,
.page-news .journal-body:has(#jf-r:checked) .jopt--r,
.page-news .journal-body:has(#jf-v:checked) .jopt--v {
  color: var(--white);
  border-color: currentColor;
  background: rgba(255, 255, 255, .06);
}

.page-news .journal-body:has(#jf-all:checked) .jopt--all {
  color: var(--white);
  border-color: var(--mist);
  background: rgba(255, 255, 255, .06);
}

.page-news .journal-side:has(.journal-filter__radio:focus-visible) .jopt {
  outline: 2px solid rgba(53, 224, 208, .55);
  outline-offset: 2px;
}

.page-news .journal-side__hint {
  margin: 14px 0 0;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--mist);
  max-width: 260px;
}

/* 纯 CSS 筛选：选中某条线后只保留该类条目与仍有内容的分组 */
.page-news .journal-body:has(#jf-p:checked) .log-item:not([data-line="p"]),
.page-news .journal-body:has(#jf-r:checked) .log-item:not([data-line="r"]),
.page-news .journal-body:has(#jf-v:checked) .log-item:not([data-line="v"]),
.page-news .journal-body:has(#jf-p:checked) .log-group:not(:has(.log-item[data-line="p"])),
.page-news .journal-body:has(#jf-r:checked) .log-group:not(:has(.log-item[data-line="r"])),
.page-news .journal-body:has(#jf-v:checked) .log-group:not(:has(.log-item[data-line="v"])) {
  display: none;
}

.page-news .log-group {
  margin-bottom: 30px;
}

.page-news .log-group__label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 14px;
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .log-group__label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.page-news .log-item {
  display: grid;
  grid-template-columns: 4px minmax(0, 1fr);
  gap: 0 16px;
  padding: 18px 0;
  border-bottom: var(--news-bd);
  transition: background-color var(--news-t);
}

.page-news .log-item:hover {
  background: rgba(255, 255, 255, .022);
}

.page-news .log-item__bar {
  background: var(--line);
}

.page-news .log-item[data-line="p"] .log-item__bar { background: var(--cyan); }
.page-news .log-item[data-line="r"] .log-item__bar { background: var(--amber); }
.page-news .log-item[data-line="v"] .log-item__bar { background: var(--rose); }

.page-news .log-item__body {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-news .log-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
}

.page-news .log-tag {
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  padding: 2px 8px;
  border: 1px solid currentColor;
}

.page-news .log-tag--p { color: var(--cyan); }
.page-news .log-tag--r { color: var(--amber); }
.page-news .log-tag--v { color: var(--rose); }

.page-news .log-item__code {
  font-size: var(--fs-12);
  color: var(--mist);
}

.page-news .log-item__title {
  margin: 0;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

.page-news .log-item__sum {
  margin: 0;
  max-width: 660px;
  font-size: var(--fs-14);
  line-height: 1.74;
  color: var(--mist);
}

.page-news .log-more {
  margin-top: 2px;
}

.page-news .log-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--ff-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--mist);
  transition: color var(--news-t);
}

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

.page-news .log-more summary::before {
  content: "+";
  display: inline-block;
  width: 14px;
  text-align: center;
  color: var(--white);
}

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

.page-news .log-more summary:hover {
  color: var(--paper);
}

.page-news .log-more__list {
  margin: 10px 0 0;
  padding: 0 0 0 20px;
  max-width: 660px;
  font-size: var(--fs-14);
  line-height: 1.74;
  color: var(--mist);
}

.page-news .log-more__list li + li {
  margin-top: 6px;
}

/* ---------- 专题 ---------- */
.page-news .topic-grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-news .topic-cover {
  margin: 0;
}

.page-news .topic-list {
  display: grid;
}

.page-news .topic-item {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-top: var(--news-bd);
}

.page-news .topic-item:first-child {
  border-top: none;
  padding-top: 0;
}

.page-news .topic-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
}

.page-news .topic-item__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--white);
  letter-spacing: .01em;
}

.page-news .topic-item__freq {
  font-size: var(--fs-12);
  color: var(--mist);
  white-space: nowrap;
}

.page-news .topic-item p {
  margin: 0;
  max-width: 640px;
  font-size: var(--fs-14);
  line-height: 1.74;
  color: var(--mist);
}

/* ---------- 版本迭代 ---------- */
.page-news .version-figure {
  margin: 24px 0 30px;
}

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

.page-news .vitem {
  position: relative;
  padding: 0 0 26px 24px;
  border-left: var(--news-bd);
}

.page-news .vitem:last-child {
  padding-bottom: 0;
}

.page-news .vitem::before {
  content: "";
  position: absolute;
  left: -5.5px;
  top: 5px;
  width: 10px;
  height: 10px;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-news .vitem--r::before { border-color: var(--amber); }
.page-news .vitem--v::before { border-color: var(--rose); }

.page-news .vitem__ver {
  margin: 0 0 6px;
  font-size: var(--fs-12);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-news .vitem__name {
  margin: 0 0 6px;
  font-family: var(--ff-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--white);
}

.page-news .vitem__body {
  margin: 0;
  max-width: 660px;
  font-size: var(--fs-14);
  line-height: 1.74;
  color: var(--mist);
}

/* ---------- 回看与订阅 ---------- */
.page-news .revisit {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.page-news .revisit__col {
  display: grid;
  gap: 12px;
  padding: 22px 22px 24px;
}

.page-news .revisit__name {
  margin: 0;
  font-family: var(--ff-display);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--white);
}

.page-news .revisit__col p {
  margin: 0;
  max-width: 560px;
  font-size: var(--fs-14);
  line-height: 1.74;
  color: var(--mist);
}

.page-news .revisit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
    align-items: start;
  }

  .page-news .revisit {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 1040px) {
  .page-news .journal-body {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

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

  .page-news .journal-side__opts {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-news .jopt {
    width: 100%;
    justify-content: flex-start;
  }

  .page-news .topic-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 46px;
  }

  .page-news .log-item__body {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .sum-card,
  .page-news .jopt,
  .page-news .log-item,
  .page-news .log-more summary {
    transition: none;
  }

  .page-news .sum-card:hover {
    transform: none;
  }
}