.ul-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  color: #fff;
  display: flex;
  flex-direction: column;
  min-height: 500px;
  padding: 96px 0 84px;
  background:
    var(--hero-bg, none) center / cover no-repeat,
    linear-gradient(rgba(10, 18, 48, var(--hero-overlay, 0%)), rgba(10, 18, 48, var(--hero-overlay, 0%))),
    radial-gradient(900px 460px at 82% -12%, rgba(6, 182, 212, 0.38), transparent 60%),
    radial-gradient(820px 460px at 8% 112%, rgba(99, 102, 241, 0.34), transparent 60%),
    linear-gradient(160deg, #0a1230, #0f1e3d 62%, #13316b);
}
/* ===== Hero 背景轮播（横向滑动） ===== */
.ul-hero-slides {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  display: flex;
  transition: transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
}
.ul-hero-slide {
  flex: 0 0 100%;
  position: relative;
  background-position: center; background-size: cover; background-repeat: no-repeat;
}
.ul-hero-slide.is-empty { display: none; }
.ul-hero-slide-ov { position: absolute; inset: 0; }
/* ===== 轮播圆点指示器 ===== */
.ul-hero-dots {
  position: absolute; left: 0; right: 0; bottom: 22px; z-index: 2;
  display: flex; justify-content: center; gap: 10px;
  pointer-events: none;
}
.ul-hero-dots:empty { display: none; }
.ul-hero-dots button {
  width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer; pointer-events: auto;
  transition: background 0.3s, width 0.3s, border-radius 0.3s;
}
.ul-hero-dots button.is-active {
  background: #fff; width: 26px; border-radius: 6px;
}
.ul-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(820px 520px at 72% 0%, #000, transparent 75%);
  mask-image: radial-gradient(820px 520px at 72% 0%, #000, transparent 75%);
}
.ul-hero .glow {
  position: absolute;
  z-index: 1;
  border-radius: 50%;
  filter: blur(64px);
  opacity: 0.55;
  pointer-events: none;
  transition: transform 0.25s ease;
  will-change: transform;
}
.ul-hero .glow.a { width: 340px; height: 340px; left: -80px; top: -60px; background: radial-gradient(circle, #2563eb, transparent 70%); }
.ul-hero .glow.b { width: 380px; height: 380px; right: -110px; bottom: -120px; background: radial-gradient(circle, #06b6d4, transparent 70%); }
.ul-hero-inner { position: relative; z-index: 3; flex: 1; display: flex; flex-direction: column; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 30px; box-sizing: border-box; }
.ul-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  margin-bottom: 20px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: #dbe6ff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}
.ul-hero-eyebrow svg.ul-i { width: 15px; height: 15px; color: #7dd3fc; }
.ul-hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: auto; }
/* ===== 每帧轮播文案：随图切换，突出单一卖点 ===== */
.ul-hero-slide-cap {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 1200px;
  padding: 0 30px;
  box-sizing: border-box;
  z-index: 2;
  text-shadow: 0 2px 22px rgba(0, 0, 0, 0.45);
}
.ul-hero-slide-h {
  font-size: 42px;
  line-height: 1.12;
  margin: 0 0 14px;
  font-weight: 800;
  letter-spacing: -0.6px;
  color: #fff;
}
.ul-hero-slide-s {
  font-size: 17px;
  line-height: 1.6;
  opacity: 0.94;
  max-width: 560px;
  margin: 0;
  color: #e2e9fb;
}
@media (max-width: 768px) {
  .ul-hero { padding: 60px 0 56px; min-height: 420px; }
  .ul-hero-inner { padding: 0 18px; }
  .ul-hero-slide-h { font-size: 28px; }
  .ul-hero-slide-s { font-size: 15px; }
  .ul-hero-slide-cap { max-width: 100%; padding: 0 18px; }
}