/* 首页轮播 — 纯图片 Banner */
.hero-carousel {
  position: relative;
  z-index: 2;
  width: 100%;
  height: clamp(360px, 52vw, 560px);
  overflow: hidden;
  background: var(--bg-deep);
}

.carousel-track {
  position: relative;
  width: 100%;
  height: 100%;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.65s ease, visibility 0.65s;
}

.carousel-slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 1;
}

.carousel-slide-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  color: var(--ink);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: background var(--transition), transform var(--transition);
}

.carousel-btn:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.05);
}

.carousel-prev { left: 1.25rem; }
.carousel-next { right: 1.25rem; }

.carousel-dots {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 0.5rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.carousel-dot.is-active {
  background: #fff;
  transform: scale(1.15);
}

@media (max-width: 768px) {
  .hero-carousel {
    height: clamp(320px, 70vw, 420px);
  }

  .carousel-btn {
    width: 40px;
    height: 40px;
    font-size: 1.4rem;
  }

  .carousel-prev { left: 0.5rem; }
  .carousel-next { right: 0.5rem; }
}