/* ===== 行业观察 (page-news) 专属样式 ===== */
.page-news {
  --news-hero-min-height: 320px;
  --news-card-gap: 2.5rem;
  --news-timeline-width: 4px;
  --news-dot-size: 16px;
  --news-archive-accent: var(--color-accent, #00e5ff);

  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 0 var(--space-sm, 1rem) var(--space-lg, 4rem);
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

/* ---- 首屏英雄区 ---- */
.news-hero {
  position: relative;
  padding-top: var(--space-md, 2rem);
  overflow: hidden;
}
.news-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.news-hero__text {
  order: 2;
}
.news-hero__kicker {
  display: inline-block;
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-caption, 0.85rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent, #00e5ff);
  margin-bottom: 0.5rem;
}
.news-hero__title {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-h1, clamp(2.8rem,6vw,4rem));
  font-weight: 800;
  color: var(--color-white, #ffffff);
  line-height: 1.1;
  margin: 0 0 0.75rem;
}
.news-hero__summary {
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-body, 1rem);
  color: var(--color-muted, #8a9bb8);
  max-width: 36em;
  line-height: 1.6;
  margin: 0;
}
.news-hero__image {
  order: 1;
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-card, #1a2d4a);
}
.news-hero__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.news-hero .slash-divider {
  margin-top: var(--space-md, 2rem);
}

/* ---- 面包屑 ---- */
.news-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-caption, 0.85rem);
  color: var(--color-muted, #8a9bb8);
  padding: 0.25rem 0;
}
.news-breadcrumb a {
  color: var(--color-accent, #00e5ff);
  text-decoration: none;
  transition: color var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
}
.news-breadcrumb a:hover {
  color: var(--color-white, #ffffff);
}
.news-breadcrumb__sep {
  color: var(--color-muted, #8a9bb8);
  user-select: none;
}
.news-breadcrumb [aria-current="page"] {
  color: var(--color-white, #ffffff);
  font-weight: 600;
}

/* ---- 时间轴容器 ---- */
.news-timeline {
  position: relative;
  padding: var(--space-lg, 4rem) 0 var(--space-md, 2rem);
}
.news-timeline__heading {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-h2, clamp(2rem,4vw,2.5rem));
  font-weight: 800;
  color: var(--color-white, #ffffff);
  margin: 0 0 var(--space-md, 2rem);
  position: relative;
  z-index: 2;
}
.news-timeline__track {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--news-card-gap);
}
.news-timeline__line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.25rem;
  width: var(--news-timeline-width);
  background: linear-gradient(180deg, var(--color-accent, #00e5ff), var(--color-gold, #ffd700) 60%, var(--color-card, #1a2d4a));
  border-radius: 2px;
  transform: translateX(-50%);
  z-index: 1;
}

/* ---- 文章卡片 ---- */
.news-card {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-left: 2.75rem;
}
.news-card__marker {
  position: absolute;
  left: 0;
  top: 0.5rem;
  z-index: 3;
}
.news-card__dot {
  display: block;
  width: var(--news-dot-size);
  height: var(--news-dot-size);
  border-radius: 50%;
  background: var(--color-accent, #00e5ff);
  border: 3px solid var(--color-primary, #0b1d3a);
  box-shadow: 0 0 0 2px var(--color-accent, #00e5ff);
  transition: all var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
}
.news-card:hover .news-card__dot {
  background: var(--color-gold, #ffd700);
  box-shadow: 0 0 0 2px var(--color-gold, #ffd700), 0 0 16px rgba(255,215,0,0.3);
  transform: scale(1.15);
}
.news-card__body {
  background: var(--color-card, #1a2d4a);
  border-radius: 4px;
  padding: var(--space-sm, 1rem) var(--space-sm, 1rem);
  transition: background var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94)), box-shadow var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
  position: relative;
}
.news-card__body:hover {
  background: rgba(26,45,74,0.85);
  box-shadow: 0 4px 24px rgba(0,229,255,0.08);
}
.news-card__body.panel-bevel {
  --bevel-size: 8px;
  clip-path: polygon(
    0 var(--bevel-size),
    var(--bevel-size) 0,
    calc(100% - var(--bevel-size)) 0,
    100% var(--bevel-size),
    100% calc(100% - var(--bevel-size)),
    calc(100% - var(--bevel-size)) 100%,
    var(--bevel-size) 100%,
    0 calc(100% - var(--bevel-size))
  );
}
.news-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.news-card__tag {
  display: inline-block;
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  background: rgba(0,229,255,0.15);
  color: var(--color-accent, #00e5ff);
  border: 1px solid rgba(0,229,255,0.25);
}
.news-card__tag.accent {
  background: rgba(0,229,255,0.12);
  color: var(--color-accent, #00e5ff);
}
.news-card__version {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-muted, #8a9bb8);
  letter-spacing: 0.04em;
}
.news-card__title {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-h3, clamp(1.3rem,2.5vw,1.75rem));
  font-weight: 800;
  color: var(--color-white, #ffffff);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}
.news-card__text {
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-body, 1rem);
  color: var(--color-muted, #8a9bb8);
  line-height: 1.7;
  margin: 0 0 0.75rem;
}
.news-card__image {
  margin: 0.75rem 0;
  border-radius: 3px;
  overflow: hidden;
  background: var(--color-primary, #0b1d3a);
}
.news-card__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.news-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-caption, 0.85rem);
  font-weight: 600;
  color: var(--color-accent, #00e5ff);
  text-decoration: none;
  transition: color var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
  margin-top: 0.25rem;
}
.news-card__link:hover {
  color: var(--color-gold, #ffd700);
}
.news-card__link span {
  transition: transform var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
}
.news-card__link:hover span {
  transform: translateX(4px);
}

/* ---- 专题观察 ---- */
.news-feature {
  padding: var(--space-md, 2rem) 0;
}
.news-feature__heading {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-h2, clamp(2rem,4vw,2.5rem));
  font-weight: 800;
  color: var(--color-white, #ffffff);
  margin: 0 0 var(--space-md, 2rem);
}
.news-feature__grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.news-feature__content {
  background: var(--color-card, #1a2d4a);
  padding: var(--space-sm, 1rem) var(--space-sm, 1rem);
  border-radius: 4px;
}
.news-feature__content.panel-bevel {
  --bevel-size: 10px;
  clip-path: polygon(
    0 var(--bevel-size),
    var(--bevel-size) 0,
    calc(100% - var(--bevel-size)) 0,
    100% var(--bevel-size),
    100% calc(100% - var(--bevel-size)),
    calc(100% - var(--bevel-size)) 100%,
    var(--bevel-size) 100%,
    0 calc(100% - var(--bevel-size))
  );
}
.news-feature__label {
  display: inline-block;
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.75rem;
  background: rgba(255,215,0,0.12);
  color: var(--color-gold, #ffd700);
  border: 1px solid rgba(255,215,0,0.25);
  border-radius: 2px;
  margin-bottom: 0.75rem;
}
.news-feature__label.gold {
  color: var(--color-gold, #ffd700);
  border-color: rgba(255,215,0,0.3);
}
.news-feature__title {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-h3, clamp(1.3rem,2.5vw,1.75rem));
  font-weight: 800;
  color: var(--color-white, #ffffff);
  margin: 0 0 0.75rem;
  line-height: 1.25;
}
.news-feature__text {
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-body, 1rem);
  color: var(--color-muted, #8a9bb8);
  line-height: 1.7;
  margin: 0 0 1rem;
}
.news-feature__list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.news-feature__list li {
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: 0.9rem;
  color: var(--color-muted, #8a9bb8);
  padding-left: 1.25rem;
  position: relative;
  line-height: 1.5;
}
.news-feature__list li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--color-accent, #00e5ff);
  font-size: 1rem;
}
.news-feature__visual {
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-card, #1a2d4a);
}
.news-feature__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.news-feature .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.6rem 1.4rem;
  background: var(--gradient-accent, linear-gradient(135deg,#00e5ff,#00bfff));
  color: var(--color-primary, #0b1d3a);
  border: none;
  border-radius: 3px;
  cursor: pointer;
  text-decoration: none;
  transition: opacity var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94)), box-shadow var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
}
.news-feature .btn-accent:hover {
  opacity: 0.9;
  box-shadow: 0 0 20px rgba(0,229,255,0.25);
}

/* ---- 历史存档 ---- */
.news-archive {
  padding: var(--space-md, 2rem) 0;
}
.news-archive__heading {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: var(--text-h2, clamp(2rem,4vw,2.5rem));
  font-weight: 800;
  color: var(--color-white, #ffffff);
  margin: 0 0 0.5rem;
}
.news-archive__intro {
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-caption, 0.85rem);
  color: var(--color-muted, #8a9bb8);
  margin: 0 0 var(--space-md, 2rem);
  max-width: 36em;
  line-height: 1.6;
}
.news-archive__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.news-archive__item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.6rem 0.75rem;
  background: rgba(26,45,74,0.5);
  border-left: 3px solid var(--news-archive-accent);
  border-radius: 2px;
  transition: background var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94)), border-color var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
}
.news-archive__item:hover {
  background: var(--color-card, #1a2d4a);
  border-left-color: var(--color-gold, #ffd700);
}
.news-archive__version {
  font-family: var(--font-header, "Montserrat","Noto Sans SC",system-ui,sans-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent, #00e5ff);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}
.news-archive__desc {
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-caption, 0.85rem);
  color: var(--color-muted, #8a9bb8);
  line-height: 1.5;
}
.news-archive__note {
  margin-top: var(--space-sm, 1rem);
  padding-top: var(--space-sm, 1rem);
  border-top: 1px solid rgba(138,155,184,0.2);
}

/* ---- 相关链接 ---- */
.news-related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: var(--space-sm, 1rem) 0 var(--space-xs, 0.5rem);
  margin-top: var(--space-sm, 1rem);
}
.news-related .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body, "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif);
  font-size: var(--text-caption, 0.85rem);
  font-weight: 600;
  color: var(--color-accent, #00e5ff);
  background: transparent;
  border: 1px solid rgba(0,229,255,0.2);
  padding: 0.4rem 1rem;
  border-radius: 3px;
  text-decoration: none;
  transition: all var(--transition, 0.25s cubic-bezier(0.25,0.46,0.45,0.94));
}
.news-related .btn-ghost:hover {
  background: rgba(0,229,255,0.08);
  border-color: var(--color-accent, #00e5ff);
  color: var(--color-white, #ffffff);
}

/* ===== 响应式 ===== */
@media (max-width: 599px) {
  .page-news {
    padding: 0 0.75rem var(--space-lg, 4rem);
  }
  .news-hero__title {
    font-size: clamp(2rem, 10vw, 2.8rem);
  }
  .news-hero__image {
    max-height: 200px;
  }
  .news-hero__img {
    height: 200px;
    object-fit: cover;
  }
  .news-timeline__line {
    left: 0.875rem;
  }
  .news-card {
    padding-left: 2rem;
  }
  .news-card__dot {
    width: 12px;
    height: 12px;
    border-width: 2px;
  }
  .news-card__body {
    padding: 0.75rem;
  }
  .news-card__title {
    font-size: 1.1rem;
  }
  .news-card__image {
    margin: 0.5rem 0;
  }
  .news-card__img {
    max-height: 160px;
    object-fit: cover;
  }
  .news-feature__grid {
    gap: 1rem;
  }
  .news-feature__content {
    padding: 0.75rem;
  }
  .news-feature__title {
    font-size: 1.2rem;
  }
  .news-feature__visual {
    max-height: 220px;
  }
  .news-feature__img {
    height: 220px;
    object-fit: cover;
  }
  .news-archive__item {
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
  }
  .news-archive__version {
    font-size: 0.75rem;
  }
  .news-archive__desc {
    font-size: 0.8rem;
  }
  .news-related {
    gap: 0.5rem;
  }
  .news-related .btn-ghost {
    font-size: 0.8rem;
    padding: 0.3rem 0.75rem;
  }
}

@media (min-width: 600px) {
  .news-hero__inner {
    flex-direction: row;
    align-items: center;
    gap: 2rem;
  }
  .news-hero__text {
    order: 1;
    flex: 1 1 50%;
  }
  .news-hero__image {
    order: 2;
    flex: 1 1 50%;
    max-width: 50%;
  }
  .news-hero__img {
    height: auto;
    max-height: 280px;
    object-fit: cover;
  }
  .news-timeline__line {
    left: 2rem;
  }
  .news-card {
    padding-left: 3.5rem;
  }
  .news-card__body {
    padding: var(--space-sm, 1rem) var(--space-md, 2rem);
  }
  .news-card--left .news-card__body {
    margin-right: 10%;
  }
  .news-card--right .news-card__body {
    margin-left: 10%;
  }
  .news-feature__grid {
    flex-direction: row;
    align-items: flex-start;
    gap: 2rem;
  }
  .news-feature__content {
    flex: 1 1 55%;
    padding: var(--space-sm, 1rem) var(--space-md, 2rem);
  }
  .news-feature__visual {
    flex: 1 1 40%;
    max-width: 40%;
  }
  .news-feature__img {
    height: 100%;
    min-height: 280px;
    object-fit: cover;
  }
  .news-archive__item {
    flex-direction: row;
    align-items: center;
    padding: 0.6rem 1rem;
  }
  .news-archive__version {
    min-width: 4em;
  }
}

@media (min-width: 1024px) {
  .page-news {
    padding: 0 var(--space-md, 2rem) var(--space-xl, 6rem);
  }
  .news-hero__inner {
    gap: 3rem;
  }
  .news-hero__image {
    max-width: 45%;
  }
  .news-hero__img {
    max-height: 320px;
  }
  .news-card--left .news-card__body {
    margin-right: 20%;
  }
  .news-card--right .news-card__body {
    margin-left: 20%;
  }
  .news-feature__grid {
    gap: 3rem;
  }
  .news-feature__content {
    padding: var(--space-md, 2rem) var(--space-lg, 4rem);
  }
  .news-feature__visual {
    max-width: 38%;
  }
  .news-archive__list {
    max-width: 70%;
  }
}