.page-news {
  --news-ink-soft: rgba(43, 33, 27, 0.72);
  --news-grid-line: rgba(37, 99, 235, 0.05);
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  width: min(100% - 2 * var(--gutter), var(--shell));
  margin: var(--sp-4) auto 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}
.page-news .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin: 0 0.5rem;
  color: var(--line);
}
.page-news .breadcrumb-link {
  color: var(--ink-faint);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
.page-news .breadcrumb-link:hover,
.page-news .breadcrumb-link:focus-visible {
  color: var(--blue);
}
.page-news .breadcrumb-current {
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-block: var(--sp-5) var(--sp-5);
}
.page-news .news-hero::before {
  content: "";
  position: absolute;
  left: 44%;
  right: -12%;
  bottom: 8%;
  height: 52%;
  background: linear-gradient(135deg, var(--teal-wash), var(--blue-wash));
  clip-path: polygon(14% 0, 100% 0, 86% 100%, 0 100%);
  z-index: 0;
  pointer-events: none;
}
.page-news .news-hero .container {
  position: relative;
  z-index: 1;
}
.page-news .news-hero__grid {
  display: grid;
  gap: var(--sp-5);
}
.page-news .news-hero h1 {
  margin: var(--sp-3) 0 0;
  font-size: clamp(1.9rem, 7.2vw, 4.15rem);
  line-height: 1.08;
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 15em;
}
.page-news .news-hero__lede {
  margin: var(--sp-3) 0 0;
  max-width: 48ch;
  font-size: clamp(1rem, 2.1vw, 1.125rem);
  color: var(--news-ink-soft);
}
.page-news .news-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.page-news .news-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.page-news .news-stat {
  background: var(--white);
  padding: var(--sp-3);
}
.page-news .news-stat__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  line-height: 1.5;
}
.page-news .news-stat__value {
  margin: 0.4rem 0 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink-blue);
  line-height: 1.1;
}

/* ---------- 目录索引 ---------- */
.page-news .news-index {
  margin-top: var(--sp-4);
}
.page-news .news-index__head {
  margin: 0 0 var(--sp-3);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}
.page-news .index-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-news .index-item {
  border-bottom: 1px solid var(--line);
}
.page-news .index-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.2rem 0.9rem;
  align-items: baseline;
  padding: var(--sp-3) 0.4rem;
  color: var(--ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.page-news .index-link:hover,
.page-news .index-link:focus-visible,
.page-news .index-link[aria-current="true"] {
  border-left-color: var(--blue);
  background: var(--blue-wash);
}
.page-news .index-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--blue);
}
.page-news .index-text {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
}
.page-news .index-meta {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

/* ---------- 区块通用 ---------- */
.page-news .news-block {
  padding-block: var(--sp-6);
}
.page-news .news-block--tint {
  background: var(--mist);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.page-news .news-block--grid {
  background-image:
    linear-gradient(var(--news-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--news-grid-line) 1px, transparent 1px);
  background-size: 38px 38px;
}

/* ---------- 图片容器 ---------- */
.page-news .news-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--teal-gray);
}
.page-news .news-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-news .news-figure--band {
  margin-top: var(--sp-4);
}

/* ---------- 改版速览：时间轴 ---------- */
.page-news .news-split {
  display: grid;
  gap: var(--sp-5);
  margin-top: var(--sp-5);
}
.page-news .news-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-timeline .timeline-item {
  position: relative;
  padding: 0 0 var(--sp-4) 1.6rem;
}
.page-news .news-timeline .timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  bottom: 0;
  width: 1px;
  background: var(--line);
}
.page-news .news-timeline .timeline-item:last-child {
  padding-bottom: 0;
}
.page-news .news-timeline .timeline-item:last-child::before {
  bottom: auto;
  height: 0.7rem;
}
.page-news .timeline-node {
  position: absolute;
  left: -4px;
  top: 0.5rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease);
}
.page-news .news-timeline .timeline-item:hover .timeline-node {
  background: var(--orange);
  transform: scale(1.5);
}
.page-news .timeline-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--teal);
}
.page-news .news-timeline__title {
  margin: 0.35rem 0 0.35rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
}
.page-news .news-timeline__text {
  margin: 0;
  max-width: 44ch;
  font-size: 0.9375rem;
  color: var(--news-ink-soft);
}

/* ---------- BGV4 两步路径 ---------- */
.page-news .news-bgv4 {
  display: grid;
  gap: var(--sp-5);
  margin-top: var(--sp-5);
}
.page-news .news-steps {
  display: grid;
  gap: var(--sp-3);
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-step {
  position: relative;
  padding: var(--sp-4) var(--sp-4) var(--sp-4) calc(var(--sp-4) + 3px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-news .news-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--orange);
}
.page-news .news-step:hover {
  border-color: var(--orange);
  transform: translateX(4px);
}
.page-news .news-step__num {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--orange);
}
.page-news .news-step h3 {
  margin: 0.5rem 0 0.4rem;
  font-size: 1.0625rem;
  line-height: 1.4;
}
.page-news .news-step p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--news-ink-soft);
}

/* ---------- 更新条目 ---------- */
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.page-news .news-log {
  margin: var(--sp-4) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-news .news-log__item {
  padding: var(--sp-4) 0.4rem;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.page-news .news-log__item:hover {
  background: var(--white);
  padding-left: var(--sp-3);
}
.page-news .news-log__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
}
.page-news .news-log__time {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}
.page-news .news-log__title {
  margin: 0.55rem 0 0.3rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
}
.page-news .news-log__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  color: var(--news-ink-soft);
}

/* ---------- 主题笔记 ---------- */
.page-news .news-notes {
  display: grid;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}
.page-news .news-note {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: var(--sp-4);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.page-news .news-note:hover {
  border-color: var(--teal);
  transform: translateY(-3px);
}
.page-news .news-note h3 {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.4;
}
.page-news .news-note > p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--news-ink-soft);
}
.page-news .news-note details {
  margin-top: auto;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line-soft);
}
.page-news .news-note summary {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--blue);
  list-style: none;
}
.page-news .news-note summary::-webkit-details-marker {
  display: none;
}
.page-news .news-note summary::after {
  content: "＋";
  margin-left: 0.35rem;
}
.page-news .news-note details[open] summary::after {
  content: "－";
}
.page-news .news-note details p {
  margin: 0.55rem 0 0;
  font-size: 0.875rem;
  color: var(--news-ink-soft);
}

/* ---------- 回访路径群岛 ---------- */
.page-news .news-paths {
  display: grid;
  gap: 1px;
  margin-top: var(--sp-5);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.page-news .news-path {
  position: relative;
  display: block;
  padding: var(--sp-4);
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-news .news-path .mono-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--teal);
}
.page-news .news-path h3 {
  margin: 0.6rem 0 0.4rem;
  font-size: 1.125rem;
  line-height: 1.35;
}
.page-news .news-path p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--news-ink-soft);
}
.page-news .news-path__arrow {
  display: inline-block;
  margin-top: var(--sp-3);
  font-family: var(--font-mono);
  color: var(--orange);
  transition: transform 0.2s var(--ease);
}
.page-news .news-path:hover,
.page-news .news-path:focus-visible {
  background: var(--ink-blue);
  color: var(--cream);
}
.page-news .news-path:hover p,
.page-news .news-path:focus-visible p {
  color: rgba(251, 247, 239, 0.76);
}
.page-news .news-path:hover .news-path__arrow,
.page-news .news-path:focus-visible .news-path__arrow {
  transform: translateX(6px);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 760px) {
  .page-news .index-link {
    grid-template-columns: 3.5rem minmax(0, 1fr) minmax(0, 17rem);
    align-items: center;
    padding-block: var(--sp-3);
  }
  .page-news .index-meta {
    grid-column: 3;
    text-align: right;
  }
  .page-news .news-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-news .news-paths {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-news .news-hero {
    padding-block: var(--sp-5) var(--sp-6);
  }
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
    gap: var(--sp-6);
  }
  .page-news .news-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: var(--sp-6);
    align-items: start;
  }
  .page-news .news-bgv4 {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: var(--sp-6);
    align-items: start;
  }
  .page-news .news-log__item {
    display: grid;
    grid-template-columns: 8rem minmax(0, 1fr);
    grid-template-areas:
      "head title"
      "head text";
    gap: 0.1rem var(--sp-4);
    align-items: start;
    padding-block: var(--sp-4);
  }
  .page-news .news-log__head {
    grid-area: head;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .page-news .news-log__title {
    grid-area: title;
    margin-top: 0;
  }
  .page-news .news-log__text {
    grid-area: text;
  }
  .page-news .news-figure--band {
    margin-top: var(--sp-5);
  }
}

@media (min-width: 1000px) {
  .page-news .news-paths {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}