.page-news {
  --news-red: var(--ky-red);
  --news-green: var(--ky-green);
  --news-gold: var(--ky-gold);
  --news-dark: var(--ky-dark);
  --news-light: var(--ky-light);
  --news-timeline-width: 46px;
  --news-mobile-pad: 24px;
  background-color: var(--ky-light);
  overflow-x: clip;
}

/* ========== 页面头部 ========== */
.page-news__header {
  position: relative;
  padding: calc(var(--ky-h) + 32px) 0 44px;
  background: linear-gradient(160deg, #ffffff 0%, var(--ky-light) 55%, rgba(232, 236, 234, 0.6) 100%);
  overflow: hidden;
}
.page-news__header::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  background: var(--ky-grad-hot);
  opacity: 0.07;
  border-radius: 50%;
  filter: blur(4px);
}
.page-news__header::after {
  content: "";
  position: absolute;
  left: -60px;
  bottom: -100px;
  width: 260px;
  height: 260px;
  background: var(--ky-grad-mixed);
  opacity: 0.05;
  border-radius: 50%;
  transform: rotate(18deg);
}
.page-news__header .container {
  position: relative;
  z-index: 1;
}
.page-news__header .breadcrumb {
  margin-bottom: 20px;
}
.page-news__header-grid {
  display: block;
}
.page-news__header-main {
  max-width: 720px;
}
.page-news__title {
  font-family: var(--ky-font-display);
  font-size: 2.4rem;
  line-height: 1.18;
  color: var(--ky-dark);
  margin: 12px 0 14px;
  letter-spacing: 0.01em;
}
.page-news__lead {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--ky-gray);
  margin: 0;
}
.page-news__header-note {
  margin-top: 24px;
  padding: 18px 20px 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--ky-gray-light);
  border-left: 4px solid var(--ky-gold);
  border-radius: var(--ky-radius-sm);
  box-shadow: var(--ky-shadow);
  position: relative;
}
.page-news__header-note p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--ky-gray);
  margin: 10px 0 6px;
}
.page-news__header-note .data-badge {
  display: inline-block;
  background: var(--ky-dark);
  color: #fff;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 4px 12px;
  border-radius: 999px;
}
.page-news__sparkline {
  display: block;
  margin-top: 10px;
  max-width: 180px;
  height: auto;
}

/* ========== 区块标题通用 ========== */
.page-news__section-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-bottom: 28px;
  position: relative;
}
.page-news__section-heading .section-title {
  margin: 0;
  font-size: 1.875rem;
}
.page-news__kicker {
  font-family: var(--ky-font-data);
  font-size: 0.8125rem;
  color: var(--ky-gray);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--ky-gray-light);
  border-radius: 999px;
  padding: 4px 14px;
}
.page-news__heading-on-dark .section-title {
  color: #fff;
}
.page-news__heading-on-dark .page-news__kicker {
  background: rgba(255, 255, 255, 0.12);
  color: #d8deda;
}

/* ========== 焦点分析 ========== */
.page-news__features {
  background: linear-gradient(180deg, var(--ky-light) 0%, #ffffff 100%);
}
.page-news__feature-main {
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  padding: 0;
  background: #fff;
  border: 1px solid var(--ky-gray-light);
  border-radius: var(--ky-radius);
  box-shadow: var(--ky-shadow);
}
.page-news__feature-main-media {
  overflow: hidden;
}
.page-news__feature-main-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  background: var(--ky-gray-light);
  transition: transform 0.5s var(--ky-ease);
}
.page-news__feature-main:hover .page-news__feature-main-media img {
  transform: scale(1.02);
}
.page-news__feature-main-body {
  padding: 26px 24px 30px;
}
.page-news__feature-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.page-news__feature-main-body h3 {
  font-family: var(--ky-font-display);
  font-size: 1.5rem;
  line-height: 1.4;
  color: var(--ky-dark);
  margin: 0 0 12px;
}
.page-news__feature-main-body p {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ky-gray);
  margin: 0;
}
.page-news__feature-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--ky-gray-light);
}
.page-news__feature-stat {
  font-family: var(--ky-font-data);
  font-size: 0.8125rem;
  color: var(--ky-gray);
}

/* 时间线子文章 */
.page-news__feature-timeline {
  margin-top: 32px;
  display: block;
}
.page-news__timeline-row {
  display: grid;
  grid-template-columns: var(--news-timeline-width) 1fr;
  gap: 18px;
  padding: 24px 0;
  border-bottom: 1px dashed var(--ky-gray-light);
  position: relative;
}
.page-news__timeline-row:last-child {
  border-bottom: none;
}
.page-news__timeline-rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  position: relative;
}
.page-news__timeline-rail::before {
  content: "";
  position: absolute;
  top: 40px;
  bottom: -32px;
  left: 50%;
  width: 2px;
  background: linear-gradient(180deg, var(--ky-red) 0%, var(--ky-gray-light) 100%);
  transform: translateX(-50%);
}
.page-news__timeline-row:last-child .page-news__timeline-rail::before {
  display: none;
}
.page-news__timeline-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ky-grad-hot);
  box-shadow: 0 0 0 4px rgba(217, 43, 43, 0.14);
  flex-shrink: 0;
}
.page-news__timeline-date {
  writing-mode: vertical-rl;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--ky-gray);
  background: var(--ky-gray-light);
  padding: 6px 4px;
  border-radius: 4px;
  white-space: nowrap;
}
.page-news__timeline-title {
  font-family: var(--ky-font-display);
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--ky-dark);
  margin: 0;
}
.page-news__timeline-summary {
  grid-column: 1 / -1;
  margin-top: 4px;
  padding-left: calc(var(--news-timeline-width) + 18px);
}
.page-news__timeline-summary p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--ky-gray);
  margin: 0 0 12px;
}
.page-news__timeline-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ========== 版本更新日志 ========== */
.page-news__changelog {
  background:
    radial-gradient(circle at 90% 10%, rgba(217, 43, 43, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(27, 138, 90, 0.14) 0%, transparent 40%),
    var(--ky-dark);
  position: relative;
}
.page-news__changelog::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--ky-grad-hot);
  transform: skewY(-1deg);
  transform-origin: left;
}
.page-news__changelog-grid {
  display: block;
}
.page-news__changelog-list {
  position: relative;
  padding-left: 0;
}
.page-news__change-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--ky-radius);
  padding: 18px 20px 16px;
  margin-bottom: 14px;
  position: relative;
  transition: border-color var(--ky-transition), background var(--ky-transition);
}
.page-news__change-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(200, 151, 63, 0.45);
}
.page-news__change-date {
  display: inline-block;
  background: var(--ky-grad-hot);
  color: #fff;
  font-size: 0.75rem;
  padding: 3px 14px 3px 10px;
  border-radius: 999px 4px 999px 4px;
  margin-bottom: 10px;
  letter-spacing: 0.05em;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 50%, calc(100% - 8px) 100%, 0 100%, 6px 50%);
}
.page-news__change-item h4 {
  font-family: var(--ky-font-display);
  font-size: 1.0625rem;
  line-height: 1.4;
  color: #fff;
  margin: 0 0 6px;
}
.page-news__change-item p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: #aab3ae;
  margin: 0 0 10px;
}
.page-news__change-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news__changelog-side {
  margin-top: 32px;
}
.page-news__changelog-side img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--ky-radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 18px;
}
.page-news__changelog-note {
  background: rgba(255, 255, 255, 0.07);
  border-left: 3px solid var(--ky-gold);
  border-radius: var(--ky-radius-sm);
  padding: 18px 20px;
}
.page-news__changelog-note p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #c2c9c5;
  margin: 0 0 12px;
}
.page-news__changelog-note a {
  font-family: var(--ky-font-body);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ky-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 151, 63, 0.4);
  transition: border-color var(--ky-transition);
}
.page-news__changelog-note a:hover {
  border-bottom-color: var(--ky-gold);
}

/* ========== 用户实践 ========== */
.page-news__stories {
  background: #ffffff;
}
.page-news__stories-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-news__story-card {
  padding: 26px 24px;
  border: 1px solid var(--ky-gray-light);
  border-radius: var(--ky-radius);
  box-shadow: var(--ky-shadow);
  transition: box-shadow var(--ky-transition), transform var(--ky-transition);
}
.page-news__story-card:hover {
  box-shadow: var(--ky-shadow-lg);
  transform: translateY(-4px);
}
.page-news__story-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 16px;
}
.page-news__story-avatar {
  font-family: var(--ky-font-data);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--ky-dark);
  background: var(--ky-gray-light);
  border-radius: 999px;
  padding: 6px 16px;
}
.page-news__story-card h3 {
  font-family: var(--ky-font-display);
  font-size: 1.25rem;
  line-height: 1.45;
  color: var(--ky-dark);
  margin: 0 0 10px;
}
.page-news__story-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--ky-gray);
  margin: 0 0 16px;
}
.page-news__story-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-news__story-media {
  margin: 0;
  padding: 0;
  overflow: hidden;
  border-radius: var(--ky-radius);
  border: 1px solid var(--ky-gray-light);
  box-shadow: var(--ky-shadow);
  background: var(--ky-dark);
}
.page-news__story-media img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
  background: var(--ky-gray-light);
}
.page-news__story-media figcaption {
  padding: 18px 20px;
}
.page-news__story-media-label {
  display: inline-block;
  font-family: var(--ky-font-data);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ky-gold);
  margin-bottom: 8px;
}
.page-news__story-media figcaption p {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--ky-gray);
  margin: 0;
}

/* ========== 标签云 ========== */
.page-news__topics {
  background: linear-gradient(180deg, #ffffff 0%, var(--ky-light) 100%);
}
.page-news__topics-cloud {
  position: relative;
  overflow: hidden;
  border-radius: var(--ky-radius);
  border: 1px solid var(--ky-gray-light);
  background: #fff;
  box-shadow: var(--ky-shadow);
}
.page-news__topics-cloud > img {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--ky-gray-light);
}
.page-news__topics-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding: 26px 24px 30px;
  align-items: center;
  justify-content: center;
}
.page-news__topics-nav .tag {
  font-family: var(--ky-font-body);
  font-size: 1rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform var(--ky-transition), box-shadow var(--ky-transition);
}
.page-news__topics-nav .tag:hover {
  transform: translateY(-3px) rotate(-2deg);
  box-shadow: var(--ky-shadow-lg);
}
.page-news__topics-nav .tag--gold {
  background: var(--ky-grad-hot);
  color: #fff;
}
.page-news__topics-nav .tag--green {
  background: var(--ky-green);
  color: #fff;
}
.page-news__topics-nav .tag:not(.tag--gold):not(.tag--green) {
  background: var(--ky-gray-light);
  color: var(--ky-dark);
  border-color: rgba(0, 0, 0, 0.04);
}

/* ========== 延伸区块 ========== */
.page-news__more {
  background:
    radial-gradient(circle at 15% 85%, rgba(200, 151, 63, 0.12) 0%, transparent 35%),
    var(--ky-dark);
}
.page-news__more-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-news__more-item {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--ky-radius);
  padding: 28px 26px;
}
.page-news__more-item h3 {
  font-family: var(--ky-font-display);
  font-size: 1.375rem;
  line-height: 1.4;
  color: #fff;
  margin: 0 0 10px;
}
.page-news__more-item p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: #aab3ae;
  margin: 0 0 20px;
}
.page-news__more-bar {
  margin-top: 24px;
  background: rgba(255, 255, 255, 0.07);
  border-left: 4px solid var(--ky-gold);
  border-radius: var(--ky-radius-sm);
  padding: 20px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.page-news__more-bar p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: #c2c9c5;
  margin: 0;
  max-width: 640px;
}

/* ========== 桌面端 & 平板 ========== */
@media (min-width: 768px) {
  .page-news__header {
    padding-bottom: 56px;
  }
  .page-news__header-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: end;
  }
  .page-news__header-note {
    margin-top: 0;
  }
  .page-news__title {
    font-size: 3.25rem;
  }
  .page-news__lead {
    font-size: 1.125rem;
  }

  .page-news__feature-main {
    grid-template-columns: 1.1fr 1fr;
  }
  .page-news__feature-main-media {
    min-height: 100%;
  }
  .page-news__feature-main-media img {
    height: 100%;
    max-height: none;
    object-fit: cover;
  }
  .page-news__feature-main-body {
    padding: 34px 34px 32px;
  }
  .page-news__feature-main-body h3 {
    font-size: 1.75rem;
  }

  .page-news__timeline-row {
    grid-template-columns: var(--news-timeline-width) 0.9fr 1.35fr;
    gap: 24px;
    padding: 32px 0;
  }
  .page-news__timeline-summary {
    grid-column: auto;
    padding-left: 0;
    margin-top: 6px;
  }
  .page-news__timeline-title {
    font-size: 1.375rem;
  }

  .page-news__changelog-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr;
    gap: 36px;
    align-items: start;
  }
  .page-news__changelog-side {
    margin-top: 0;
    position: sticky;
    top: calc(var(--ky-h) + 24px);
  }

  .page-news__stories-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .page-news__story-card {
    padding: 28px 26px;
  }
  .page-news__story-media img {
    height: 320px;
  }

  .page-news__more-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .page-news__more-bar {
    padding: 22px 28px;
  }
}

@media (min-width: 1024px) {
  .page-news__title {
    font-size: 3.5rem;
  }
  .page-news__topics-cloud {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    align-items: stretch;
  }
  .page-news__topics-cloud > img {
    height: 100%;
    min-height: 240px;
  }
  .page-news__topics-nav {
    padding: 36px 30px;
    align-content: center;
    justify-content: flex-start;
  }
  .page-news__timeline-title {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news * {
    transition: none !important;
    animation: none !important;
  }
  .page-news__feature-main .page-news__feature-main-media img {
    transform: none !important;
  }
  .page-news__topics-nav .tag:hover {
    transform: none;
    box-shadow: none;
  }
}