/* ================================
   子页面样式（含 :has(:hover) 修复）
   ================================ */

/* 子页面 Hero */
.subpage-hero {
  position: relative;
  padding: 200px 32px 120px;
  text-align: center;
  overflow: hidden;
  min-height: 56vh;
  min-height: 56svh; /* Safari 移动端小视口高回退 */
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.subpage-hero-inner { position: relative; z-index: 2; max-width: 1320px; margin: 0 auto; }
.subpage-hero-decor {
  position: absolute; top: 50%; right: -120px;
  width: 600px; height: 600px;
  z-index: 0; opacity: 0.5; pointer-events: none;
  animation: slowRotate 60s linear infinite;
}
.subpage-title {
  font-size: clamp(40px, 5.4vw, 72px);
  font-weight: 800; line-height: 1.1;
  color: var(--text-0);
  margin: 24px 0; letter-spacing: -1.5px;
}
.subpage-sub { font-size: 18px; color: var(--text-2); line-height: 1.75; max-width: 720px; margin: 0 auto; }

.cases-hero {
  padding: 180px 32px 60px;
  min-height: 50vh;
  min-height: 50svh; /* Safari 移动端小视口高回退 */
}

.about-hero {
  padding: 170px 32px 48px;
  min-height: 44vh;
  min-height: 44svh; /* Safari 移动端小视口高回退 */
}

.about-hero + .intro-section {
  padding-top: 54px;
}

/* 案例过滤栏 */
.cases-filter-wrap { padding: 0 32px 60px; position: relative; z-index: 2; }
.cases-filter {
  max-width: 900px; margin: 0 auto;
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: center;
  padding: 8px;
  background: var(--bg-1);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
}
.filter-btn {
  padding: 12px 26px;
  background: transparent; border: none;
  border-radius: var(--radius-pill);
  color: var(--text-2);
  font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all .3s;
  font-family: inherit;
}
.filter-btn:hover { color: var(--text-0); }
.filter-btn.active { background: var(--text-0); color: white; box-shadow: 0 4px 14px rgba(26, 15, 31, 0.18); }

/* 案例卡网格 */
.cases-section { padding: 0 32px 140px; position: relative; z-index: 2; }
.cases-grid {
  max-width: 1320px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  transform: translateZ(0);
}
.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transform: scale(1);
  transition:
    transform .5s cubic-bezier(.16, 1, .3, 1),
    opacity .5s cubic-bezier(.16, 1, .3, 1),
    box-shadow .5s cubic-bezier(.16, 1, .3, 1),
    border-color .5s cubic-bezier(.16, 1, .3, 1);
  will-change: transform, opacity;
}
.cases-grid:has(.case-card:hover) .case-card:not(:hover) {
  transform: scale(0.97); opacity: 0.55; filter: saturate(0.7);
}
.cases-grid .case-card:hover {
  transform: scale(1.03); opacity: 1; filter: none;
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  z-index: 2;
}
.case-img { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
/* Safari <15 不支持 aspect-ratio → 容器高塌成 0、图消失；用 padding 比例回退（仅在无 aspect-ratio 时生效） */
@supports not (aspect-ratio: 1 / 1) { .case-img { height: 0; padding-bottom: 75%; } }
.case-img .img-ph { position: absolute; inset: 0; }
/* 行业案例真实照片：覆盖在 .img-ph 之上；onerror 隐藏时占位回填 */
.case-photo {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  z-index: 1;
  user-select: none; -webkit-user-drag: none;
  transition: transform .6s;
}
.case-card:hover .case-photo { transform: scale(1.04); }
.case-tag {
  position: absolute; top: 16px; left: 16px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-pill);
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  z-index: 2;
}
.tag-finance { color: #db2777; }
.tag-edu { color: #ec4899; }
.tag-gov { color: #f43f5e; }
.tag-retail { color: #f97316; }
.tag-media { color: #f59e0b; }
.tag-health { color: #fb7185; }
.case-body { padding: 28px 30px; }
.case-body h3 { font-size: 19px; font-weight: 700; color: var(--text-0); margin-bottom: 12px; line-height: 1.45; }
.case-body p { color: var(--text-2); font-size: 14px; line-height: 1.75; margin-bottom: 24px; }
.case-metrics {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  padding-top: 20px; border-top: 1px solid var(--border-soft);
}
.case-metrics div { display: flex; flex-direction: column; gap: 4px; }
.case-metrics strong {
  font-size: 22px; font-weight: 800;
  background: var(--grad-1);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  line-height: 1; letter-spacing: -0.5px;
}
.case-metrics span { font-size: 11px; color: var(--text-3); }

/* CTA 板块 */
.case-cta { padding: 120px 32px; position: relative; z-index: 2; }
.case-cta-inner {
  max-width: 980px; margin: 0 auto;
  text-align: center;
  padding: 90px 40px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  position: relative; overflow: hidden;
  box-shadow: 0 40px 100px rgba(236, 72, 153, 0.08);
}
.case-cta-inner::before {
  content: '';
  position: absolute; top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.18), transparent 70%);
  filter: blur(40px); z-index: 0;
}
.case-cta-inner::after {
  content: '';
  position: absolute; bottom: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.18), transparent 70%);
  filter: blur(40px); z-index: 0;
}
.case-cta-inner > * { position: relative; z-index: 1; }
.case-cta-inner h2 { font-size: clamp(32px, 4vw, 48px); color: var(--text-0); font-weight: 800; line-height: 1.18; margin-bottom: 20px; letter-spacing: -1.2px; }
.case-cta-inner p { color: var(--text-2); font-size: 17px; line-height: 1.7; margin-bottom: 36px; }

/* 关于页 - 公司介绍 */
.intro-section { padding: 110px 32px 120px; position: relative; z-index: 2; }
.intro-inner {
  max-width: 1320px; margin: 0 auto;
  display: block;
}
.intro-text { width: 100%; }
.intro-text h2 { font-size: clamp(36px, 4.2vw, 56px); color: var(--text-0); font-weight: 800; line-height: 1.18; margin: 20px 0 30px; letter-spacing: -1.2px; }
.intro-text p { color: var(--text-2); font-size: 18px; line-height: 1.9; margin: 0; max-width: none; }
.intro-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.intro-tags span {
  padding: 10px 18px;
  background: var(--bg-2);
  border: 1px solid rgba(236, 72, 153, 0.25);
  border-radius: var(--radius-pill);
  font-size: 13px; color: var(--primary-deep);
  font-weight: 600;
}

/* 时间轴 */
.timeline-section { padding: 140px 32px; position: relative; z-index: 2; }
.timeline { max-width: 920px; margin: 0 auto; position: relative; padding-left: 56px; }
.timeline::before {
  content: '';
  position: absolute; left: 19px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--rose) 50%, var(--orange) 100%);
  opacity: 0.55; border-radius: 2px;
}
.timeline-item {
  position: relative; padding-bottom: 44px;
  display: grid; grid-template-columns: 110px 1fr; gap: 30px;
  align-items: flex-start;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute; left: -44px; top: 8px;
  width: 18px; height: 18px;
  background: white;
  border: 2px solid var(--primary);
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 0 4px rgba(236, 72, 153, 0.12);
}
.timeline-dot.active {
  background: var(--primary);
  box-shadow: 0 0 0 6px rgba(236, 72, 153, 0.18), 0 0 20px rgba(236, 72, 153, 0.35);
  animation: tlPulse 2s ease-in-out infinite;
}
@keyframes tlPulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(236, 72, 153, 0.18), 0 0 20px rgba(236, 72, 153, 0.35); }
  50% { box-shadow: 0 0 0 10px rgba(236, 72, 153, 0.10), 0 0 28px rgba(249, 115, 22, 0.35); }
}
.timeline-year {
  font-size: 32px; font-weight: 800;
  background: var(--grad-1);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  line-height: 1; letter-spacing: -1px;
}
.timeline-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px 30px;
  transition: all .35s cubic-bezier(.16, 1, .3, 1);
}
.timeline-card:hover { border-color: transparent; transform: translateX(6px); box-shadow: var(--shadow-md); }
.timeline-card h3 { font-size: 18px; font-weight: 700; color: var(--text-0); margin-bottom: 8px; }
.timeline-card p { color: var(--text-2); font-size: 14px; line-height: 1.75; }

/* ============ 企业动态 · 公众号文章列表 ============ */
.news-section {
  padding: 130px 32px;
  position: relative;
  z-index: 2;
}
.news-list {
  max-width: 1200px;
  margin: 70px auto 0;
  display: flex;
  flex-direction: column;
}

.news-item {
  display: grid;
  grid-template-columns: 110px 300px 1fr;
  gap: 48px;
  align-items: start;
  padding: 42px 28px;
  border-top: 1px solid var(--border);
  cursor: pointer;
  position: relative;
  /* 保持桌面端每条动态的视觉高度一致 */
  min-height: 280px;
  box-sizing: border-box;
  transition:
    background-color .4s cubic-bezier(.2,.8,.2,1),
    transform .4s cubic-bezier(.2,.8,.2,1);
  border-radius: var(--radius-lg);
}
.news-list .news-item:last-child {
  border-bottom: 1px solid var(--border);
}
.news-item:hover {
  background: linear-gradient(90deg,
    rgba(252, 231, 243, 0.0) 0%,
    rgba(252, 231, 243, 0.45) 30%,
    rgba(255, 237, 213, 0.30) 70%,
    rgba(255, 237, 213, 0.0) 100%);
  transform: translateX(6px);
}

/* 左 · 日期列 */
.news-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding-top: 4px;
}
.news-year {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  color: var(--text-0);
  line-height: 1;
}
.news-day {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 14px;
  letter-spacing: 1px;
  color: var(--text-3);
  font-weight: 500;
}

/* 中 · 封面图列 */
.news-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(circle at 30% 30%, #fbcfe8 0%, transparent 55%),
    radial-gradient(circle at 70% 70%, #fed7aa 0%, transparent 55%),
    linear-gradient(135deg, #fff0f3 0%, #fff3eb 100%);
  border: 1px solid var(--border);
  transition: box-shadow .4s, transform .55s cubic-bezier(.2,.8,.2,1);
}
/* Safari <15 aspect-ratio 回退：按 16/10 比例撑高，避免封面塌成 0 */
@supports not (aspect-ratio: 1 / 1) { .news-cover { height: 0; padding-bottom: 62.5%; } }
.news-cover img,
.news-cover video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  z-index: 1;
  transition: transform .6s cubic-bezier(.2,.8,.2,1);
}
.news-cover video {
  pointer-events: none; /* 防止 hover 视频拦截整行点击 */
  background: #000;
}
.news-cover-ph {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-3);
  font-size: 13px; letter-spacing: 1px;
  z-index: 0;
}
.news-cover-ph span::before {
  content: '◈';
  display: block;
  font-size: 28px;
  color: var(--primary);
  opacity: 0.4;
  margin-bottom: 8px;
  text-align: center;
}
.news-item:hover .news-cover { box-shadow: var(--shadow-md); }
.news-item:hover .news-cover img { transform: scale(1.06); }

/* 右 · 标题 + 摘要 + 阅读原文 */
.news-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.news-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-0);
  line-height: 1.5;
  letter-spacing: 0.2px;
  transition: color .3s;
}
.news-item:hover .news-title { color: var(--primary-deep); }
.news-summary {
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.85;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: gap .3s, color .3s;
}
.news-item:hover .news-link { gap: 14px; color: var(--primary-deep); }
.news-arrow {
  display: inline-block;
  transition: transform .35s cubic-bezier(.2,.8,.2,1);
}
.news-item:hover .news-arrow { transform: translateX(2px); }

.news-item.is-news-hidden {
  display: none;
}
.news-more-wrap {
  max-width: 1200px;
  margin: 38px auto 0;
  display: flex;
  justify-content: center;
}
.news-more-btn {
  min-height: 54px;
  padding: 0 24px 0 28px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text-0);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 12px 30px rgba(47, 28, 45, 0.08);
  transition: border-color .3s, color .3s, box-shadow .3s, transform .3s;
}
.news-more-btn:hover {
  border-color: rgba(236, 72, 153, 0.42);
  color: var(--primary-deep);
  box-shadow: 0 16px 34px rgba(236, 72, 153, 0.14);
  transform: translateY(-2px);
}
.news-more-arrow {
  display: inline-block;
  color: var(--primary);
  font-size: 16px;
  transition: transform .3s;
}
.news-more-btn[aria-expanded="true"] .news-more-arrow {
  transform: rotate(180deg);
}

/* 响应式 · 窄屏堆叠 */
@media (max-width: 900px) {
  .news-list {
    margin-top: 44px;
  }
  .news-item {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 32px 16px;
    min-height: 0;
  }
  .news-meta { flex-direction: row; gap: 14px; align-items: baseline; }
  .news-year { font-size: 28px; }
  .news-cover { aspect-ratio: 16 / 9; }
  .news-more-wrap { margin-top: 28px; }
}

/* 响应式 */
@media (max-width: 1024px) {
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .subpage-hero { padding: 140px 20px 80px; min-height: auto; }
  .cases-hero { padding: 124px 20px 48px; }
  .about-hero { padding: 124px 20px 36px; }
  .about-hero + .intro-section { padding-top: 40px; }
  .cases-section, .intro-section, .timeline-section, .case-cta { padding-left: 20px; padding-right: 20px; }
  .intro-section, .timeline-section { padding-top: 80px; padding-bottom: 80px; }
  .intro-text h2 { font-size: clamp(32px, 10vw, 44px); }
  .intro-text p { font-size: 16px; line-height: 1.85; }
  .cases-section { padding-bottom: 80px; }
  .case-cta { padding: 70px 20px; }
  .case-cta-inner { padding: 50px 24px; }
  .cases-grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 36px; }
  .timeline-item { grid-template-columns: 1fr; gap: 12px; }
  .timeline-dot { left: -28px; }
  .case-metrics { grid-template-columns: 1fr; gap: 10px; }
}