/* ===== Hero 区域 ===== */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.hero-slider {
  position: relative;
  width: 100%;
  height: 100vh;
}

.hero-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.8s ease;
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.hero-slide-1 {
  background-image: url('https://picsum.photos/id/1040/1280/720');
}

.hero-slide-2 {
  background-image: url('https://picsum.photos/id/1069/1280/720');
}

.hero-slide-3 {
  background-image: url('https://picsum.photos/id/180/1280/720');
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13,17,23,0.82) 0%,
    rgba(22,90,99,0.65) 50%,
    rgba(32,124,134,0.50) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--color-white);
  padding: 0 20px;
  max-width: 800px;
}

.hero-tag {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary-pale);
  background: rgba(32,124,134,0.3);
  border: 1px solid rgba(32,124,134,0.5);
  padding: 6px 20px;
  border-radius: 100px;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero-title {
  font-size: var(--text-6xl);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.hero-title span {
  color: var(--color-primary-light);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: rgba(255,255,255,0.8);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 轮播指示点 */
.hero-dots {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 10px;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}

.hero-dot.active {
  background: var(--color-primary-light);
  transform: scale(1.3);
}

/* 滚动提示 */
.hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-size: var(--text-xs);
  letter-spacing: 1px;
  animation: bounce 2s infinite;
}

.hero-scroll-hint::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* LayUI carousel item 覆写（已不使用 carousel，保留空块） */