.page-news {
  --cat-replay: #35F0DC;
  --cat-node: #FF8A3C;
  --cat-patch: #6BF2A2;
  --cat-note: #B69CFF;
  --cat-sub: #FF8A3C;
  display: block;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  padding: 32px 0 44px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    rgba(42, 46, 82, 0.55) 0 1px,
    transparent 1px 88px
  );
  opacity: 0.65;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

.page-news .news-hero > * {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__title {
  margin: 20px 0 0;
  max-width: 14ch;
  line-height: 1.02;
}

.page-news .news-hero__lede {
  max-width: 62ch;
  margin: 22px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-news .news-facts {
  list-style: none;
  margin: 34px 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .news-facts li {
  background: var(--void);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-news .news-facts .num {
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-news .news-facts li > span:last-child {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 列表骨架 ---------- */

.page-news .news-feed {
  padding: 40px 0 64px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-news .news-stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
  min-width: 0;
}

/* ---------- 左侧时间索引 ---------- */

.page-news .news-rail {
  min-width: 0;
}

.page-news .news-rail__label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--index);
}

.page-news .news-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .news-rail__link {
  display: grid;
  grid-template-columns: 9px auto;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  font-size: 13.5px;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    background-color 0.18s var(--ease);
}

.page-news .news-rail__link:hover {
  color: var(--ink);
  border-color: var(--index);
}

.page-news .news-rail__link[aria-current="true"] {
  color: var(--ink);
  border-color: var(--cyan);
  background: rgba(53, 240, 220, 0.08);
}

.page-news .news-rail__stamp {
  display: none;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--index);
}

.page-news .rail-dot {
  width: 8px;
  height: 8px;
  display: block;
  transform: rotate(45deg);
  background: var(--muted);
  flex: none;
}

.page-news .rail-dot--node { background: var(--cat-node); }
.page-news .rail-dot--replay { background: var(--cat-replay); }
.page-news .rail-dot--patch { background: var(--cat-patch); }
.page-news .rail-dot--note { background: var(--cat-note); }
.page-news .rail-dot--sub { background: var(--cat-sub); }

/* ---------- 区块 ---------- */

.page-news .news-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

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

.page-news .news-block__head {
  border-left: 3px solid var(--line);
  padding-left: 16px;
}

.page-news #headline .news-block__head { border-left-color: var(--cat-node); }
.page-news #replays .news-block__head { border-left-color: var(--cat-replay); }
.page-news #patches .news-block__head { border-left-color: var(--cat-patch); }
.page-news #notes .news-block__head { border-left-color: var(--cat-note); }
.page-news #subscribe .news-block__head { border-left-color: var(--cat-sub); }

.page-news .news-block__head .sec-title {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.15;
}

.page-news .news-block__head .sec-lede {
  margin: 10px 0 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 条目 ---------- */

.page-news .item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cat-color, var(--cyan));
  min-width: 0;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news #headline .item { --cat-color: var(--cat-node); }
.page-news #replays .item { --cat-color: var(--cat-replay); }
.page-news #patches .item { --cat-color: var(--cat-patch); }

.page-news #patches .item {
  background: var(--indigo);
}

.page-news #notes .item {
  --cat-color: var(--cat-note);
  background: var(--archive);
}

.page-news .item:hover {
  transform: translateY(-2px);
  border-color: rgba(53, 240, 220, 0.4);
}

.page-news .item__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.page-news .cat {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px 3px 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--cat-color, var(--cyan));
  background: rgba(255, 255, 255, 0.05);
  border-left: 2px solid currentColor;
  clip-path: polygon(0 0, 100% 0, calc(100% - 7px) 100%, 0 100%);
  white-space: nowrap;
}

.page-news .cat--plain {
  color: var(--muted);
  border-left-color: var(--line);
}

.page-news .item__time {
  margin-left: auto;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--muted);
  white-space: nowrap;
}

.page-news .item__title {
  margin: 0;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.4;
  font-weight: 700;
  color: var(--ink);
}

.page-news .item--lead .item__title {
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.22;
  max-width: 24ch;
}

.page-news .item__text {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-news .news-media img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .news-media .media-frame__cap {
  color: var(--index);
}

/* ---------- 折叠要点 ---------- */

.page-news .fold {
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-news .fold__sum {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-news .fold__sum::-webkit-details-marker {
  display: none;
}

.page-news .fold__sum::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  font-size: 13px;
  border: 1px solid currentColor;
}

.page-news .fold[open] .fold__sum::before {
  content: "−";
}

.page-news .fold__list {
  margin: 14px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-news .fold__list li::marker {
  color: var(--cat-color, var(--cyan));
}

/* ---------- 站内文本链接 ---------- */

.page-news .link-more {
  align-self: flex-start;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 220, 0.45);
  padding-bottom: 2px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-news .link-more:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 订阅与回溯面板 ---------- */

.page-news .panel {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  min-width: 0;
}

.page-news .panel--trace {
  border-top-color: var(--cat-note);
}

.page-news .panel__title {
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.page-news .panel__text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink);
}

.page-news .panel__list li {
  position: relative;
  padding-left: 18px;
}

.page-news .panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  background: var(--cyan);
  opacity: 0.75;
}

.page-news .panel--trace .panel__list li::before {
  background: var(--cat-note);
}

.page-news .panel .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-news .news-tail {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .news-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 220, 0.45);
}

.page-news .news-tail a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-news .news-fhero,
  .page-news .news-hero {
    padding: 40px 0 56px;
  }

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

  .page-news .news-rail__stamp {
    display: inline;
  }

  .page-news .news-rail__link {
    grid-template-columns: 9px auto auto;
  }
}

@media (min-width: 900px) {
  .page-news .news-feed {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: 44px;
    padding: 56px 0 88px;
  }

  .page-news .news-rail {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
    align-self: start;
  }

  .page-news .news-rail__list {
    display: grid;
    gap: 2px;
  }

  .page-news .news-rail__link {
    grid-template-columns: 9px 1fr auto;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid transparent;
  }

  .page-news .news-rail__link:hover {
    border-color: transparent;
    border-left-color: var(--index);
  }

  .page-news .news-rail__link[aria-current="true"] {
    border-color: transparent;
    border-left-color: var(--cyan);
    background: linear-gradient(90deg, rgba(53, 240, 220, 0.1), transparent 82%);
  }
}

@media (min-width: 1024px) {
  .page-news .news-block {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news .news-block__head,
  .page-news .item--lead {
    grid-column: 1 / -1;
  }

  .page-news .item--lead {
    padding: 26px 26px 28px;
  }
}

@media (min-width: 1180px) {
  .page-news .news-hero {
    padding: 56px 0 72px;
  }

  .page-news .news-feed {
    grid-template-columns: 220px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .item,
  .page-news .news-rail__link,
  .page-news .link-more {
    transition: none;
  }

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