.vb-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.vb-carousel__viewport {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 420px;
}

.vb-carousel__slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  display: flex;
  opacity: 0;
  pointer-events: none;
  z-index: 1;
}

.vb-carousel__slide.active {
  opacity: 1;
  pointer-events: auto;
  z-index: 2;
}

/* 每片叶子 */
.vb-carousel__blind {
  flex: 1;
  height: 100%;
  background-repeat: no-repeat;
  /* 铰链在右侧 → 叶子左边向内翻，视觉上“从左往右”波及 */
  transform-origin: right center;
  transition: transform 0.5s ease;
  transform: rotateY(0deg);
}

/* 翻转状态：折叠向右 */
.vb-carousel__slide.vb-animating .vb-carousel__blind {
  transform: rotateY(90deg);
}

/* 箭头 */
.vb-carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: transparent;
  border: none;
  width: 48px;
  height: 48px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
}

.vb-carousel__arrow:hover { opacity: 0.7; }
.vb-carousel__arrow--prev { left: 20px; }
.vb-carousel__arrow--next { right: 20px; }

.vb-carousel__arrow-icon {
  display: inline-block;
  width: 24px;
  height: 16px;
  background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNCIgaGVpZ2h0PSIxNiIgdmlld0JveD0iMCAwIDI0IDE2Ij48cGF0aCBmaWxsPSIjZmZmIiBkPSJNMTUuNy4zbC0xLjQgMS40TDE5LjYgN0gwdjJoMTkuNmwtNS4zIDUuMyAxLjQgMS40TDIzLjQgOHoiLz48L3N2Zz4=");
  background-repeat: no-repeat;
  background-size: 24px 16px;
  background-position: center;
}

.vb-carousel__arrow--prev .vb-carousel__arrow-icon {
  transform: rotate(180deg);
}

/* 整张 slide 成为点击热区：覆盖全层透明。
   z-index 4 高于 blind，低于 overlay(5) 与控件(10)。
   overlay 本层 pointer-events:none，只有中间灯底文案重新启用点击，
   所以 overlay 空白区点击会穿透到 slide-link。 */
.vb-carousel__slide-link {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 4;
  cursor: pointer;
  text-decoration: none;
  /* 不加颜色 / 背景，保持透明。 */
}

/* 轻微可见 hover 反馈（可选）：画面轻微亮一点 */
.vb-carousel__slide-link:hover {
  background: rgba(255, 255, 255, 0.04);
}

/* 内容叠加层 */
.vb-carousel__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.vb-carousel__overlay.active {
  opacity: 1;
}

/* wrapper 不需要，直接用 content 绝对居中 */
.vb-carousel__overlay .page-hat--content-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* 灰色半透明内容框 - 绝对居中，宽度参考 .page-hat--content padding 24/66.67/50% 换算 */
.vb-carousel__overlay .page-hat--content {
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
      -ms-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  background: rgba(30, 30, 30, 0.35);
  padding: 32px 40px;
  /* 基础宽度：小屏尽量占满（扩散参考下基础 padding:30px） */
  width: calc(100% - 60px);
  /* 默认不可点击，避免非 active overlay 拦截点击事件（导致总是触发最后一张的链接） */
  pointer-events: none;
  box-sizing: border-box;
}

/* 仅 active overlay 的内容框可接收点击 */
.vb-carousel__overlay.active .page-hat--content {
  pointer-events: auto;
}

/* ≥640px：参考 padding-left/right:16.6667% → 有效宽度 ≈ 66.6666% */
@media (min-width: 640px) {
  .vb-carousel__overlay .page-hat--content {
    width: 66.6666%;
  }
}

/* ≥960px：参考 padding:100px 25% → 有效宽度 50% */
@media (min-width: 960px) {
  .vb-carousel__overlay .page-hat--content {
    width: 50%;
  }
}

/* 分类标签：居中框内左上角 */
.vb-carousel__overlay .page-hat--category {
  display: inline-block;
  color: #fff;
  /* 响应式字号：640px~960px 从 13.33px 平滑过渡到 16.67px */
  font-size: 13.33333px;
  font-size: calc(13.33333px + 3.33334 * (100vw - 640px) / 320);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  padding: 6px 14px;
  border-top: 2px solid #4caf7d;
  border-bottom: 2px solid #4caf7d;
  border-left: 2px solid #4caf7d;
  border-right: 2px solid #5b7fd4;
  margin-bottom: 20px;
}

@media (max-width: 640px) {
  .vb-carousel__overlay .page-hat--category {
    font-size: 13.33333px;
  }
}

@media (min-width: 960px) {
  .vb-carousel__overlay .page-hat--category {
    font-size: 16.66667px;
  }
}

/* 大标题：左对齐，超大粗体 */
.vb-carousel__overlay .page-hat--title {
  color: #fff;
  font-size: 38px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
  line-height: 1.1;
  margin: 0;
}

/* 标题链接样式（历史嵌套在 .page-hat--title 里的 <a>，兼容保留）*/
.vb-carousel__overlay .page-hat--title a {
  color: #fff;
  text-decoration: none;
  display: block;
}

.vb-carousel__overlay .page-hat--title a:hover {
  opacity: 0.85;
}

/* 新结构：整块 .page-hat--content 被 .page-hat--content-link 包裹。
   重置默认 a 样式，hover 轻微透明。*/
.vb-carousel__overlay .page-hat--content-link,
.vb-carousel__overlay .page-hat--content-link:hover,
.vb-carousel__overlay .page-hat--content-link:focus,
.vb-carousel__overlay .page-hat--content-link:visited {
  color: inherit;
  text-decoration: none;
  display: block;
  cursor: pointer;
}

.vb-carousel__overlay .page-hat--content-link:hover {
  opacity: 0.92;
}

.vb-carousel__overlay .page-hat--title p { margin: 0; }

.vb-carousel__overlay .page-hat--link {
  margin-top: 24px;
}

.vb-carousel__overlay .btn-readmore {
  display: inline-block;
  padding: 8px 24px;
  border: 2px solid #fff;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-decoration: none;
  transition: background 0.3s, color 0.3s;
}

.vb-carousel__overlay .btn-readmore:hover {
  background: #fff;
  color: #000;
}

/* 圆点 */
.vb-carousel__dots {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.vb-carousel__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.3s;
}

.vb-carousel__dot.active { background: #fff; }

/* PAUSE/PLAY 控制按钮：底部居中，纯文字，位于滚动箭头 + 圆点上方 */
.vb-carousel__playpause {
  position: absolute;
  bottom: 110px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 18px;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer !important;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.vb-carousel__playpause:hover {
  background: transparent;
  border-color: #fff;
  transform: translateX(-50%) scale(1.05);
  cursor: pointer !important;
}

@media (max-width: 640px) {
  .vb-carousel__playpause {
    bottom: 90px;
    padding: 5px 14px;
    font-size: 10px;
    letter-spacing: 1.5px;
  }
}