.page-news {
  --news-rule: rgba(138, 151, 163, 0.22);
  --news-line: rgba(138, 151, 163, 0.14);
  --news-soft: rgba(53, 240, 180, 0.08);
  background: var(--im-ink);
  color: var(--im-text);
  padding-bottom: clamp(40px, 6vw, 84px);
  overflow-x: hidden;
}

.page-news .im-crumbs {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 页首 ---------- */
.page-news .news-masthead {
  padding: clamp(26px, 4vw, 54px) 0 clamp(22px, 3.5vw, 40px);
  border-bottom: 1px solid var(--news-rule);
  background:
    linear-gradient(180deg, rgba(14, 19, 24, 0.92), rgba(7, 9, 11, 0) 78%);
}

.page-news .news-masthead__inner {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-news .news-masthead h1 {
  margin: 0;
  font-family: var(--im-font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--im-white);
}

.page-news .news-masthead__sub {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--im-text-dim);
}

.page-news .news-masthead__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 4vw, 48px);
  margin: clamp(6px, 1.5vw, 12px) 0 0;
}

.page-news .news-masthead__stats > div {
  border-left: 2px solid var(--im-mint);
  padding-left: 12px;
  min-width: 92px;
}

.page-news .news-masthead__stats dt {
  font-family: var(--im-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--im-cool);
  text-transform: uppercase;
}

.page-news .news-masthead__stats dd {
  margin: 6px 0 0;
  font-family: var(--im-font-mono);
  font-size: clamp(17px, 2.4vw, 23px);
  color: var(--im-white);
  white-space: nowrap;
}

/* ---------- 置顶专题 ---------- */
.page-news .news-pin-wrap {
  margin-top: clamp(26px, 4vw, 48px);
}

.page-news .news-pin {
  display: grid;
  gap: 0;
  border: 1px solid var(--news-rule);
  background: var(--im-night);
  overflow: hidden;
}

.page-news .news-pin__media {
  overflow: hidden;
  background: var(--im-graphite);
}

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

.page-news .news-pin__body {
  display: grid;
  gap: 14px;
  align-content: center;
  padding: clamp(20px, 3vw, 36px);
}

.page-news .news-pin__flag {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--im-cool);
}

.page-news .news-pin__body h2 {
  margin: 0;
  font-family: var(--im-font-display);
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.16;
  color: var(--im-white);
}

.page-news .news-pin__body p {
  margin: 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--im-text-dim);
}

.page-news .news-pin__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 4px;
}

.page-news .news-pin__actions .im-btn {
  margin: 0;
}

@media (min-width: 920px) {
  .page-news .news-pin {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-news .news-pin__body {
    padding: clamp(26px, 3vw, 44px);
  }
}

/* ---------- 主体双栏 ---------- */
.page-news .news-stream {
  margin-top: clamp(34px, 5vw, 68px);
}

.page-news .news-body {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

@media (min-width: 920px) {
  .page-news .news-body {
    grid-template-columns: 250px minmax(0, 1fr);
  }
}

/* 左侧分类索引 */
.page-news .news-index {
  display: grid;
  gap: 18px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--news-rule);
}

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

.page-news .news-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-news .news-index__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--news-line);
  color: var(--im-text-dim);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-news .news-index__list a:hover,
.page-news .news-index__list a:focus-visible {
  color: var(--im-mint);
  padding-left: 8px;
  outline: none;
}

.page-news .news-index__list .im-mono {
  font-size: 12px;
  color: var(--im-cool);
}

.page-news .news-index__list a:hover .im-mono {
  color: var(--im-orange);
}

.page-news .news-index__fig {
  margin: 0;
  display: grid;
  gap: 8px;
}

.page-news .news-index__fig img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--news-rule);
}

.page-news .news-index__fig figcaption {
  font-size: 12px;
  line-height: 1.65;
  color: var(--im-cool);
}

@media (min-width: 920px) {
  .page-news .news-index {
    position: sticky;
    top: 92px;
    align-self: start;
    padding-bottom: 0;
    border-bottom: 0;
  }
}

/* 右侧条目流 */
.page-news .news-feed > h2 {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--im-font-display);
  font-size: clamp(22px, 3vw, 30px);
  color: var(--im-white);
  letter-spacing: -0.01em;
}

.page-news .feed-group {
  scroll-margin-top: 96px;
}

.page-news .feed-group + .feed-group {
  margin-top: clamp(26px, 4vw, 46px);
}

.page-news .feed-group__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 10px;
  font-family: var(--im-font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--im-mint);
}

.page-news .feed-group__title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--news-rule), transparent);
}

.page-news .feed {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--news-rule);
}

.page-news .feed__item {
  position: relative;
  display: grid;
  gap: 8px;
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-bottom: 1px solid var(--news-line);
  transition: padding-left 0.25s ease;
}

.page-news .feed__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--im-mint);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.25s ease;
}

.page-news .feed__item:hover::before,
.page-news .feed__item:focus-within::before {
  transform: scaleY(1);
}

.page-news .feed__item:hover {
  padding-left: 14px;
}

.page-news .feed__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--im-cool);
}

.page-news .feed__title {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--im-white);
  transition: color 0.2s ease;
}

.page-news .feed__item:hover .feed__title {
  color: var(--im-mint);
}

.page-news .feed__excerpt {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--im-text-dim);
}

/* ---------- 版本更新追踪 ---------- */
.page-news .news-track {
  margin-top: clamp(40px, 6vw, 82px);
}

.page-news .news-track__inner {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding-top: clamp(24px, 4vw, 42px);
  border-top: 1px solid var(--news-rule);
  align-items: center;
}

.page-news .news-track__text h2 {
  margin: 10px 0 16px;
  font-family: var(--im-font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.16;
  color: var(--im-white);
}

.page-news .news-track__text p {
  margin: 0 0 16px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--im-text-dim);
}

.page-news .news-track__points {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-track__points li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--im-text);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--news-line);
}

.page-news .news-track__points .im-mono {
  font-size: 19px;
  color: var(--im-mint);
  min-width: 2.2ch;
}

.page-news .news-track__media .im-media {
  border: 1px solid var(--news-rule);
  background: var(--im-graphite);
}

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

@media (min-width: 880px) {
  .page-news .news-track__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  margin-top: clamp(40px, 6vw, 82px);
}

.page-news .news-series > h2 {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-family: var(--im-font-display);
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.2;
  color: var(--im-white);
}

.page-news .news-series__grid {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-news .series-card {
  display: grid;
  gap: 14px;
  align-content: start;
  background: var(--im-night);
  border: 1px solid var(--news-rule);
  overflow: hidden;
  padding-bottom: clamp(18px, 3vw, 26px);
}

.page-news .series-card .im-media {
  background: var(--im-graphite);
}

.page-news .series-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-news .series-card h3 {
  margin: 0;
  padding: 0 clamp(18px, 3vw, 26px);
  font-size: clamp(19px, 2.5vw, 24px);
  line-height: 1.35;
  color: var(--im-white);
}

.page-news .series-card p {
  margin: 0;
  padding: 0 clamp(18px, 3vw, 26px);
  font-size: 15px;
  line-height: 1.78;
  color: var(--im-text-dim);
}

.page-news .series-card .im-link {
  margin: 0 clamp(18px, 3vw, 26px);
  justify-self: start;
}

.page-news .series-card__visor {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background:
    repeating-linear-gradient(90deg, rgba(138, 151, 163, 0.16) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(0deg, rgba(138, 151, 163, 0.12) 0 1px, transparent 1px 26px),
    linear-gradient(140deg, #12181E 0%, #0B1014 55%, #0E1318 100%);
  overflow: hidden;
}

.page-news .series-card__visor::before {
  content: "";
  position: absolute;
  inset: 22% 14%;
  border: 1px dashed rgba(255, 107, 44, 0.55);
}

.page-news .series-card__visor::after {
  content: "";
  position: absolute;
  left: 14%;
  right: 14%;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--im-orange), transparent);
  transform: rotate(-7deg);
}

.page-news .news-series__foot {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--im-cool);
}

@media (min-width: 760px) {
  .page-news .news-series__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

/* ---------- 合作与联系 ---------- */
.page-news .news-join {
  margin-top: clamp(40px, 6vw, 82px);
}

.page-news .news-join__inner {
  display: grid;
  gap: clamp(20px, 3.5vw, 38px);
  padding: clamp(22px, 4vw, 44px);
  background:
    linear-gradient(120deg, var(--news-soft), rgba(127, 182, 255, 0.05) 58%, transparent 90%);
  border: 1px solid var(--news-rule);
  border-left: 3px solid var(--im-mint);
}

.page-news .news-join h2 {
  margin: 0 0 14px;
  font-family: var(--im-font-display);
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--im-white);
}

.page-news .news-join p {
  margin: 0 0 12px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--im-text-dim);
}

.page-news .news-join .im-btn {
  margin-top: 10px;
}

.page-news .news-join__list {
  margin: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-news .news-join__list dt {
  font-family: var(--im-font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--im-cool);
}

.page-news .news-join__list dd {
  margin: 5px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--im-white);
  word-break: break-word;
}

@media (min-width: 880px) {
  .page-news .news-join__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .feed__item,
  .page-news .feed__item::before,
  .page-news .feed__title,
  .page-news .news-index__list a {
    transition: none;
  }
}