.page-news {
  --news-grid: rgba(122, 156, 198, 0.07);
  --news-line: rgba(122, 156, 198, 0.35);
  --news-orange: #FF6A00;
  --news-amber: #F5A623;
  --news-deep: #0A1A2F;
  --news-warship: #0F2440;
  --news-steel: #1C3A5E;
  --news-mist: #7A9CC6;
  --news-moon: #F2F5F9;
  --news-cyan: #00D5B0;
  position: relative;
  background:
    linear-gradient(var(--news-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--news-grid) 1px, transparent 1px),
    var(--color-deep);
  background-size: 32px 32px, 32px 32px, auto;
  color: var(--color-moon);
  font-family: var(--font-serif);
  overflow-x: hidden;
  padding-bottom: var(--space-7);
}
.page-news img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 面包屑 */
.page-news .breadcrumb {
  margin-bottom: var(--space-5);
}
.page-news .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}
.page-news .breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-mist);
}
.page-news .breadcrumb li + li::before {
  content: "/";
  color: var(--color-steel);
}
.page-news .breadcrumb a {
  color: var(--color-mist);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-news .breadcrumb a:hover {
  color: var(--color-orange);
}

/* 首屏 */
.page-news .news-cover {
  position: relative;
  padding: var(--space-6) 0 var(--space-7);
}
.page-news .news-cover__grid {
  display: grid;
  gap: var(--space-5);
  align-items: end;
}
.page-news .news-cover__main {
  position: relative;
  padding-bottom: var(--space-5);
}
.page-news .news-cover__main::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 96px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-amber));
}
.page-news .news-cover__tag {
  display: inline-block;
  color: var(--color-orange);
  font-size: 13px;
  letter-spacing: 0.18em;
  margin-bottom: var(--space-3);
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-orange);
}
.page-news .news-cover h1 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(2.2rem, 6vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--color-white);
}
.page-news .news-cover__lead {
  margin: 0 0 var(--space-3);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: clamp(1rem, 2vw, 1.3rem);
  line-height: 1.4;
  color: var(--color-amber);
}
.page-news .news-cover__desc {
  max-width: 36em;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-mist);
}

/* 数据状态卡 */
.page-news .stream-card {
  position: relative;
  background: var(--color-warship);
  border: 1px solid var(--color-steel);
  border-left: 4px solid var(--color-orange);
  padding: var(--space-4);
  overflow: hidden;
}
.page-news .stream-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  border-top: 36px solid var(--color-orange);
  border-left: 36px solid transparent;
}
.page-news .stream-card__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--color-mist);
  margin-bottom: var(--space-3);
}
.page-news .stream-card__status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--color-cyan);
  background: rgba(0, 213, 176, 0.08);
}
.page-news .stream-card__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 10px var(--color-cyan);
}
.page-news .stream-card__num {
  display: block;
  margin-top: var(--space-4);
  font-size: 2.8rem;
  line-height: 1.1;
  color: var(--color-white);
}
.page-news .stream-card__caption {
  display: block;
  margin-top: var(--space-1);
  font-size: 13px;
  color: var(--color-mist);
  font-family: var(--font-sans);
}
.page-news .stream-card__note {
  margin: var(--space-3) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-mist);
}

/* 主题筛选 */
.page-news .news-filter {
  border-top: 1px solid var(--color-steel);
  border-bottom: 1px solid var(--color-steel);
  background: rgba(10, 26, 47, 0.92);
  margin-bottom: var(--space-4);
}
.page-news .news-filter__group {
  display: flex;
  gap: var(--space-2);
  flex-wrap: nowrap;
  overflow-x: auto;
  padding: var(--space-2) 0;
  -webkit-overflow-scrolling: touch;
}
.page-news .news-filter__btn {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  background: var(--color-warship);
  border: 1px solid var(--color-steel);
  color: var(--color-mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.page-news .news-filter__btn:hover {
  border-color: var(--color-orange);
  color: var(--color-white);
}
.page-news .news-filter__btn.is-current {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-deep);
  font-weight: 700;
}

/* 通用栏目间距 */
.page-news .news-section {
  padding: var(--space-6) 0;
}
.page-news .news-section__heading {
  margin-bottom: var(--space-5);
}
.page-news .section-title__desc {
  margin: var(--space-2) 0 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-mist);
}

/* 最新更新区 */
.page-news .news-updates {
  border-top: 1px solid var(--color-steel);
  border-bottom: 1px solid var(--color-steel);
  background: linear-gradient(180deg, rgba(15, 36, 64, 0.6), rgba(10, 26, 47, 0));
}
.page-news .news-updates__layout {
  display: grid;
  gap: var(--space-5);
}
.page-news .news-feed {
  display: grid;
  gap: var(--space-3);
}

/* 文章条目 */
.page-news .post-item {
  position: relative;
  display: grid;
  grid-template-columns: 3.4rem 1fr;
  gap: var(--space-3);
  background: var(--color-warship);
  border: 1px solid var(--color-steel);
  padding: var(--space-3);
  scroll-margin-top: var(--space-5);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.page-news .post-item:hover {
  border-color: var(--color-orange);
  background: rgba(15, 36, 64, 0.85);
}
.page-news .post-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-orange);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition-base);
}
.page-news .post-item:hover::before {
  transform: scaleY(1);
}
.page-news .post-item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-orange), transparent 80%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}
.page-news .post-item:hover::after {
  transform: scaleX(1);
}
.page-news .post-item__index {
  font-size: 1.7rem;
  line-height: 1;
  color: var(--color-steel);
  padding-top: var(--space-1);
  transition: color var(--transition-fast);
}
.page-news .post-item:hover .post-item__index {
  color: var(--color-orange);
}
.page-news .post-item__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-bottom: var(--space-2);
}
.page-news .post-item__tag {
  color: var(--color-amber);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.page-news .post-item__time {
  color: var(--color-mist);
  font-size: 12px;
}
.page-news .post-item__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.4;
  color: var(--color-white);
}
.page-news .post-item__title a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-news .post-item__title a:hover {
  color: var(--color-orange);
}
.page-news .post-item__excerpt {
  margin: 0 0 var(--space-3);
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-mist);
}
.page-news .post-item__cover {
  max-width: 480px;
  margin-bottom: var(--space-3);
  border: 1px solid var(--color-steel);
}
.page-news .post-item__details {
  border-top: 1px solid var(--color-steel);
}
.page-news .post-item__details summary {
  list-style: none;
  cursor: pointer;
  padding: var(--space-3) 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--color-cyan);
}
.page-news .post-item__details summary::-webkit-details-marker {
  display: none;
}
.page-news .post-item__details summary::before {
  content: "＋ ";
  color: var(--color-orange);
}
.page-news .post-item__details[open] summary::before {
  content: "－ ";
}
.page-news .post-item__detail {
  padding-bottom: var(--space-2);
}
.page-news .post-item__detail p {
  margin: 0 0 var(--space-2);
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-moon);
}
.page-news .post-item__detail a {
  color: var(--color-orange);
  font-family: var(--font-sans);
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 分页控件 */
.page-news .post-pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-3);
}
.page-news .post-pager__arrow {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-steel);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--color-orange);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.page-news .post-pager__arrow:hover {
  border-color: var(--color-orange);
  background: rgba(255, 106, 0, 0.1);
}
.page-news .post-pager__arrow.is-disabled {
  color: var(--color-steel);
  border-style: dashed;
  pointer-events: none;
}
.page-news .post-pager__cur {
  font-size: 12px;
  color: var(--color-mist);
}

/* 侧栏数据快照 */
.page-news .news-rail {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}
.page-news .rail-card {
  background: rgba(15, 36, 64, 0.7);
  border: 1px solid var(--color-steel);
  border-top: 2px solid var(--color-cyan);
  padding: var(--space-4);
}
.page-news .rail-card--guide {
  border-top-color: var(--color-orange);
}
.page-news .rail-card__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--color-mist);
  margin-bottom: var(--space-2);
}
.page-news .rail-card__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-white);
}
.page-news .rail-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--color-mist);
}
.page-news .rail-guide {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}
.page-news .rail-guide a {
  display: inline-flex;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-mist);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-news .rail-guide a::before {
  content: "⌖";
  color: var(--color-orange);
}
.page-news .rail-guide a:hover {
  color: var(--color-white);
}

/* 教程与指南 */
.page-news .news-guides {
  border-bottom: 1px solid var(--color-steel);
  background: linear-gradient(160deg, transparent, rgba(15, 36, 64, 0.4));
}
.page-news .news-guides__grid {
  display: grid;
  gap: var(--space-4);
}
.page-news .guide-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-warship);
  border: 1px solid var(--color-steel);
  padding: var(--space-4);
  scroll-margin-top: var(--space-5);
  transition: transform var(--transition-base), border-color var(--transition-base);
}
.page-news .guide-card:hover {
  border-color: var(--color-orange);
  transform: translateY(-4px);
}
.page-news .guide-card--cover {
  padding: 0;
}
.page-news .guide-card__media {
  border-bottom: 1px solid var(--color-steel);
  overflow: hidden;
}
.page-news .guide-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-2);
  padding: var(--space-4);
}
.page-news .guide-card__topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}
.page-news .guide-card__no {
  font-size: 13px;
  color: var(--color-orange);
}
.page-news .guide-card__tag {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-amber);
}
.page-news .guide-card h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--color-white);
}
.page-news .guide-card__steps {
  margin: var(--space-2) 0;
  padding-left: 1.2em;
  display: grid;
  gap: var(--space-1);
}
.page-news .guide-card__steps li {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-moon);
}
.page-news .guide-card__steps li::marker {
  color: var(--color-orange);
  font-weight: 700;
}
.page-news .guide-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-mist);
}
.page-news .guide-card p a {
  color: var(--color-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-news .guide-card__text {
  flex: 1;
}

/* 行业分类资料 */
.page-news .news-industry {
  border-bottom: 1px solid var(--color-steel);
}
.page-news .news-industry__layout {
  display: grid;
  gap: var(--space-5);
}
.page-news .news-industry__media {
  margin: 0;
}
.page-news .news-industry__media img {
  border: 1px solid var(--color-steel);
}
.page-news .news-industry__media figcaption {
  margin-top: var(--space-2);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--color-mist);
}
.page-news .industry-list {
  display: grid;
  gap: 0;
}
.page-news .industry-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-steel);
}
.page-news .industry-item:last-child {
  border-bottom: 0;
}
.page-news .industry-item__no {
  font-size: 1.2rem;
  line-height: 1;
  color: var(--color-orange);
  padding-top: var(--space-1);
}
.page-news .industry-item h3 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-sans);
  font-size: 1.05rem;
  color: var(--color-white);
}
.page-news .industry-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-mist);
}

/* 版本与专题 */
.page-news .news-versions {
  background: linear-gradient(180deg, rgba(15, 36, 64, 0.35), transparent);
}
.page-news .news-versions__layout {
  display: grid;
  gap: var(--space-5);
}
.page-news .version-timeline {
  position: relative;
  padding-left: var(--space-4);
}
.page-news .version-timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--color-steel);
}
.page-news .version-item {
  position: relative;
  padding: 0 0 var(--space-5) var(--space-4);
}
.page-news .version-item:last-child {
  padding-bottom: 0;
}
.page-news .version-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 8px;
  width: 9px;
  height: 9px;
  background: var(--color-orange);
  transform: rotate(45deg);
}
.page-news .version-item__phase {
  display: block;
  margin-bottom: var(--space-1);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--color-amber);
}
.page-news .version-item h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-sans);
  font-size: 1.15rem;
  color: var(--color-white);
}
.page-news .version-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-mist);
}
.page-news .topic-cards {
  display: grid;
  gap: var(--space-3);
}
.page-news .topic-card {
  border: 1px solid var(--color-steel);
  border-left: 3px solid var(--color-amber);
  background: rgba(15, 36, 64, 0.5);
  padding: var(--space-4);
}
.page-news .topic-card__no {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--color-amber);
}
.page-news .topic-card h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-white);
}
.page-news .topic-card p {
  margin: 0 0 var(--space-3);
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-mist);
}
.page-news .btn--sm {
  padding: 6px 12px;
  font-size: 13px;
}

/* 底部反馈与信任声明 */
.page-news .news-feedback {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: rgba(0, 213, 176, 0.06);
  border-left: 3px solid var(--color-cyan);
}
.page-news .news-feedback p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-mist);
}
.page-news .news-trust {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px dashed var(--color-steel);
}
.page-news .news-trust p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  text-align: center;
  color: var(--color-mist);
}

/* 平板及以上 */
@media (min-width: 768px) {
  .page-news .news-cover {
    padding: var(--space-7) 0 var(--space-7);
  }
  .page-news .news-cover__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: var(--space-6);
  }
  .page-news .news-updates__layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: var(--space-5);
    align-items: start;
  }
  .page-news .news-guides__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .news-industry__layout {
    grid-template-columns: 5fr 6fr;
    gap: var(--space-6);
    align-items: start;
  }
  .page-news .news-versions__layout {
    grid-template-columns: 5fr 6fr;
    gap: var(--space-6);
    align-items: start;
  }
  .page-news .topic-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .post-item {
    gap: var(--space-4);
    padding: var(--space-4);
  }
  .page-news .news-rail {
    gap: var(--space-4);
  }
}

/* 桌面 */
@media (min-width: 1024px) {
  .page-news .news-cover__grid {
    gap: var(--space-7);
  }
  .page-news .post-item__title {
    font-size: 1.3rem;
  }
  .page-news .post-item__cover {
    max-width: 520px;
  }
  .page-news .news-guides__grid {
    gap: var(--space-5);
  }
}