/* ===== 行业观察页 · 页面专属样式 =====
   作用域限定 .page-news
   移动端优先，桌面端向上增强 */
.page-news {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---------- 面包屑（位于 hero 深色区内） ---------- */
.page-news__breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 0 0 20px;
  font-size: 14px;
  color: rgba(245, 239, 226, 0.72);
}
.page-news__breadcrumb a {
  color: var(--paper);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.page-news__breadcrumb a:hover {
  color: var(--orange);
}
.page-news__breadcrumb-sep {
  color: rgba(245, 239, 226, 0.42);
}

/* ---------- Hero 首屏深色区 ---------- */
.page-news__hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--header-h) + 28px) 0 80px;
}
.page-news__hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -2px;
  left: 0;
  height: 48px;
  background: var(--paper);
  clip-path: polygon(0 100%, 0 46%, 12% 72%, 26% 30%, 44% 66%, 62% 22%, 78% 62%, 100% 34%, 100% 100%);
  pointer-events: none;
}
.page-news__hero .mono-tag {
  color: var(--orange);
}
.page-news__hero .display-title {
  margin: 16px 0 18px;
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-news__hero-sub {
  display: block;
  margin-top: 8px;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0;
  color: rgba(245, 239, 226, 0.78);
}
.page-news__hero-desc {
  max-width: 56ch;
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(245, 239, 226, 0.82);
}
.page-news__hero-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(245, 239, 226, 0.14);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.3);
}
.page-news__hero-figure img,
.page-news__changes-figure img,
.page-news__features-figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 01 / 最新动态 ---------- */
.page-news__timeline-section {
  background: var(--paper);
  padding: 64px 0 48px;
}
.page-news__timeline-layout {
  margin-top: 36px;
}
.page-news__filter-col {
  margin-bottom: 32px;
}
.page-news__filter-col .mono-tag {
  display: block;
  margin-bottom: 12px;
  color: var(--gray);
}
.page-news__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-news__filter-link {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--blue);
  border-radius: var(--radius-sm);
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 14px;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-news__filter-link:hover,
.page-news__filter-link.is-active {
  background: var(--blue);
  color: var(--white);
}
.page-news__filter-note {
  max-width: 30ch;
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray);
}
.page-news__filter-note a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 时间线 ---------- */
.page-news__timeline {
  position: relative;
  padding-left: 30px;
}
.page-news__timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}
.page-news__entry {
  position: relative;
  margin-bottom: 38px;
  padding-bottom: 2px;
}
.page-news__entry:last-child {
  margin-bottom: 0;
}
.page-news__entry-dot {
  position: absolute;
  left: -24px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--paper);
}
.page-news__entry-dot--update {
  background: var(--blue);
}
.page-news__entry-dot--highlight {
  background: var(--orange);
}
.page-news__entry-dot--change {
  background: var(--red);
}
.page-news__entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}
.page-news__entry-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.page-news__entry-tag--update {
  background: rgba(45, 108, 223, 0.12);
  color: var(--blue);
}
.page-news__entry-tag--highlight {
  background: rgba(240, 123, 63, 0.14);
  color: #bc5a1d;
}
.page-news__entry-tag--change {
  background: rgba(166, 51, 76, 0.1);
  color: var(--red);
}
.page-news__entry-date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray);
}
.page-news__entry-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.3;
  color: var(--ink);
}
.page-news__entry-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
  opacity: 0.82;
}

/* ---------- 02 / 视频集锦 ---------- */
.page-news__highlights {
  background: var(--light-blue);
  padding: 64px 0;
}
.page-news__highlights-cards {
  display: grid;
  gap: 24px;
  margin-top: 36px;
}
.page-news__video-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(30, 42, 54, 0.08);
}
.page-news__video-card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink);
}
.page-news__video-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.page-news__play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 6px 18px rgba(240, 123, 63, 0.5);
}
.page-news__play-btn--small {
  position: static;
  transform: none;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  box-shadow: 0 4px 12px rgba(240, 123, 63, 0.4);
}
.page-news__video-card-body {
  padding: 20px;
}
.page-news__video-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray);
}
.page-news__video-card-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.3;
  color: var(--ink);
}
.page-news__video-card-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  opacity: 0.82;
}
.page-news__video-mini-list {
  display: grid;
  gap: 14px;
}
.page-news__video-mini {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(30, 42, 54, 0.06);
}
.page-news__video-mini h3 {
  margin: 0 0 4px;
  font-size: 16px;
  line-height: 1.3;
  color: var(--ink);
}
.page-news__video-mini p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray);
}

/* ---------- 03 / 赛事变更说明 ---------- */
.page-news__changes {
  background: var(--paper);
  padding: 64px 0;
}
.page-news__changes-layout {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}
.page-news__changes-list {
  display: grid;
  gap: 14px;
}
.page-news__change-item {
  padding: 18px 20px;
  background: var(--white);
  border-left: 4px solid var(--red);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(30, 42, 54, 0.05);
}
.page-news__change-item-status {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(166, 51, 76, 0.08);
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}
.page-news__change-item h3 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.35;
  color: var(--ink);
}
.page-news__change-item p {
  margin: 0;
  font-size: 14px;
  color: var(--gray);
}
.page-news__changes-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(30, 42, 54, 0.08);
}

/* ---------- 04 / 功能更新 ---------- */
.page-news__features {
  background: var(--white);
  padding: 64px 0;
}
.page-news__features-layout {
  display: grid;
  gap: 28px;
  margin-top: 36px;
}
.page-news__features-figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(30, 42, 54, 0.08);
}
.page-news__features-list {
  display: grid;
  gap: 16px;
}
.page-news__feature-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 18px;
  background: var(--paper);
  border-radius: var(--radius-md);
}
.page-news__feature-version {
  flex-shrink: 0;
  margin-top: 2px;
  padding: 4px 8px;
  border-radius: 4px;
  background: var(--light-blue);
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}
.page-news__feature-item h3 {
  margin: 0 0 4px;
  font-size: 16px;
  line-height: 1.35;
  color: var(--ink);
}
.page-news__feature-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--gray);
}

/* ---------- 底部深墨色 CTA ---------- */
.page-news__cta {
  background: var(--ink);
  color: var(--paper);
  padding: 72px 0;
}
.page-news__cta-inner {
  display: grid;
  gap: 28px;
}
.page-news__cta .mono-tag {
  color: var(--orange);
}
.page-news__cta .display-title {
  margin: 10px 0 16px;
  color: var(--paper);
}
.page-news__cta-text {
  max-width: 44ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(245, 239, 226, 0.82);
}
.page-news__cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.page-news__cta .btn--outline {
  border-color: rgba(245, 239, 226, 0.7);
  color: var(--paper);
}
.page-news__cta .btn--outline:hover {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

/* ---------- 响应式增强（≥720px） ---------- */
@media (min-width: 720px) {
  .page-news__hero .display-title {
    font-size: 46px;
  }
  .page-news__hero-sub {
    font-size: 20px;
  }
  .page-news__hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 40px;
  }
  .page-news__highlights-cards {
    grid-template-columns: 1.2fr 0.9fr;
    align-items: stretch;
  }
  .page-news__changes-layout {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
  }
  .page-news__features-layout {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: center;
  }
  .page-news__cta-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

/* ---------- 桌面端布局（≥960px） ---------- */
@media (min-width: 960px) {
  .page-news__timeline-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 48px;
  }
  .page-news__filter-col {
    position: sticky;
    top: 100px;
    align-self: start;
    margin-bottom: 0;
  }
  .page-news__filter {
    flex-direction: column;
  }
  .page-news__hero .display-title {
    font-size: 58px;
  }
  .page-news__hero-inner {
    gap: 56px;
  }
  .page-news__entry-title {
    font-size: 22px;
  }
}

/* ---------- 大桌面端（≥1200px） ---------- */
@media (min-width: 1200px) {
  .page-news__highlights-cards {
    grid-template-columns: 1.35fr 0.65fr;
  }
  .page-news__changes-layout {
    grid-template-columns: 1fr 0.75fr;
  }
  .page-news__features-layout {
    grid-template-columns: 0.75fr 1fr;
  }
}