/**
 *Copyright (C), 2025, GOSUN CL
 *file: carousel.css
 *brief: 视评图说主题 - 原创轮播图样式
 *Theme URI: https://faq7777.com
 *author: 视评图说
 *date: 2025年7月7日
 *version: 7.7.0
 */

/* 全局盒模型重置 */
.spt-carousel-initialized,
.spt-carousel-initialized *,
.carousel .slick-load,
.carousel .slick-load *,
.slick-load,
.slick-load * {
  box-sizing: border-box;
}

/* 轮播图容器 */
.spt-carousel-initialized,
.carousel .slick-load,
.slick-load {
  position: relative;
  width: 100%;
  overflow: hidden;
}

/* 滑块轨道 */
.spt-carousel-track {
  display: flex;
  transition: transform 0.5s ease;
  will-change: transform;
}

/* 幻灯片 */
.spt-carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  box-sizing: border-box;
}

.spt-carousel-slide .item {
  width: 100%;
}

/* 轨道间距 */
.spt-carousel-track {
  gap: 1%;
}

/* 响应式：移动端显示2个 */
@media (max-width: 767px) {
  .spt-carousel-slide {
    flex: 0 0 50%;
    width: 50%;
  }
}

/* 导航点 */
.spt-carousel-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
  padding: 0;
  margin: 0;
  list-style: none;
}

.spt-carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.3s ease;
  outline: none;
}

.spt-carousel-dot:hover,
.spt-carousel-dot:focus {
  background: rgba(255, 255, 255, 0.6);
}

.spt-carousel-dot:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.5);
}

.spt-carousel-dot.active {
  background: #fff;
  transform: scale(1.2);
}

/* 箭头导航（可选） */
.spt-carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: none;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 10;
  outline: none;
}

.spt-carousel-arrow:hover,
.spt-carousel-arrow:focus {
  background: rgba(0, 0, 0, 0.6);
}

.spt-carousel-arrow:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.5);
}

.spt-carousel-arrow.prev {
  left: 10px;
}

.spt-carousel-arrow.next {
  right: 10px;
}

/* 加载状态 */
.carousel .load {
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;
}

.carousel .load::after {
  content: '';
  display: block;
  width: 30px;
  height: 30px;
  margin: 20px auto;
  border: 3px solid #f3f3f3;
  border-top: 3px solid #3498db;
  border-radius: 50%;
  animation: spt-carousel-spin 1s linear infinite;
}

@keyframes spt-carousel-spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 禁用动画时的样式 */
.spt-carousel-track.no-animation {
  transition: none;
}

/* 触摸友好 */
.spt-carousel-initialized {
  cursor: grab;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.spt-carousel-initialized:active {
  cursor: grabbing;
}

/* 优化性能 */
@media (prefers-reduced-motion: reduce) {
  .spt-carousel-track {
    transition: none;
  }

  .spt-carousel-dot {
    transition: none;
  }

  .spt-carousel-arrow {
    transition: none;
  }
}

/* 跑马灯动画 */
@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* 跑马灯模式的轮播图 */
.spt-carousel-initialized.marquee {
  overflow: hidden;
}

.spt-carousel-initialized.marquee .spt-carousel-track {
  display: flex;
  width: max-content;
  animation: marquee 20s linear infinite;
}

/* 鼠标悬停时暂停跑马灯 */
.spt-carousel-initialized.marquee:hover .spt-carousel-track {
  animation-play-state: paused;
}

/* 兼容旧的slick类名 */
.slick-load .item {
  width: 100%;
}

/* 隐藏原有的slick加载动画 */
.slick-load.spt-carousel-initialized + .load {
  display: none;
}