/* ===== 案例卡片三列横向布局 — 占满全宽 ===== */
.cases-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 48px;
  align-items: stretch;
  justify-content: center;
  box-sizing: border-box;
}

.case-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  min-height: 350px;
  max-width: 450px;
  margin: 0;
  box-sizing: border-box;
}

.case-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(0,0,0,0.18);
}

.case-card-inner {
  padding: 52px 32px 48px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 350px;
}

.case-card .tagline {
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 20px;
  color: white;
}

.case-card .title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 20px;
  color: white;
  line-height: 1.3;
}

/* ===== 描述文字 — 半透明框高亮 ===== */
.case-card .desc {
  font-size: 15px;
  line-height: 1.7;
  font-weight: 600;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  padding: 18px 22px;
  max-width: 340px;
  margin: 0 auto 24px auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.case-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 32px;
  background: white;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  width: 100%;
  max-width: 220px;
  margin: 0 auto;
}

.case-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
}

/* 各案例配色 */
.case-huiling { background: linear-gradient(135deg, #005ED3 0%, #009985 100%); }
.case-huiling .case-cta-btn { color: #005ED3; }
.case-huiling .case-cta-btn:hover { background: #005ED3; color: white; }

.case-beitianyuan { background: linear-gradient(135deg, #E65100 0%, #FFB300 100%); }
.case-beitianyuan .case-cta-btn { color: #E65100; }
.case-beitianyuan .case-cta-btn:hover { background: #FF6F00; color: white; }

.case-wicv { background: linear-gradient(135deg, #0B2B5E 0%, #1B6B8F 100%); }
.case-wicv .case-cta-btn { color: #0F5C7A; }
.case-wicv .case-cta-btn:hover { background: #0F5C7A; color: white; }

/* 响应式 */
@media (max-width: 1024px) {
  .cases-row {
    padding: 0 24px;
    gap: 16px;
  }
  .case-card-inner {
    padding: 40px 24px 36px;
  }
  .case-card .title {
    font-size: 20px;
  }
  .case-card .desc {
    font-size: 14px;
    padding: 14px 18px;
  }
}

@media (max-width: 768px) {
  .cases-row {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 20px;
    max-width: 500px;
  }
  .case-card {
    max-width: 100%;
  }
  .case-card-inner {
    min-height: auto;
    padding: 40px 28px 36px;
  }
}

/* ===== 案例数据展示卡片 ===== */
.case-data-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  padding: 18px 22px;
  max-width: 340px;
  margin: 0 auto 24px auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.case-data-main {
  font-size: 36px;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 6px;
}

.case-data-main .arrow {
  font-size: 28px;
  font-weight: 600;
  margin: 0 4px;
  opacity: 0.9;
}

.case-data-main .unit {
  font-size: 20px;
  font-weight: 600;
  margin-left: 2px;
}

.case-data-sub {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

/* 响应式 */
@media (max-width: 1024px) {
  .case-data-main {
    font-size: 28px;
  }
  .case-data-main .arrow {
    font-size: 22px;
  }
  .case-data-main .unit {
    font-size: 16px;
  }
  .case-data-sub {
    font-size: 12px;
  }
  .case-data-card {
    padding: 14px 18px;
  }
}

@media (max-width: 768px) {
  .case-data-main {
    font-size: 32px;
  }
  .case-data-main .arrow {
    font-size: 24px;
  }
  .case-data-main .unit {
    font-size: 18px;
  }
  .case-data-sub {
    font-size: 13px;
  }
  .case-data-card {
    padding: 16px 20px;
    margin-bottom: 24px;
  }
}