/*!
 * AdvertCarousel — 系统级轮播样式
 * 尺寸约定：宽 100% 跟随父级；高 auto 由图片撑开；图片不强制放大。
 */
.advert-carousel,
.site-advert-banner {
  --advert-carousel-arrow-size: 44px;
  --advert-carousel-dot-size: 10px;
  --advert-carousel-dot-gap: 8px;
  --advert-carousel-accent: #1e9fff;
  --advert-carousel-arrow-bg: rgba(0, 0, 0, 0.45);
  --advert-carousel-arrow-color: #fff;
  --advert-carousel-arrow-radius: 50%;
  --advert-carousel-dot-color: rgba(255, 255, 255, 0.55);
  --advert-carousel-dot-active: #ffffff;
  --advert-carousel-dot-radius: 50%;
  --advert-carousel-dot-width: var(--advert-carousel-dot-size);
  --advert-carousel-dot-height: var(--advert-carousel-dot-size);

  position: relative;
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  overflow: hidden;
  background: transparent;
  isolation: isolate;
  box-sizing: border-box;
}

.advert-carousel__viewport {
  position: relative;
  width: 100%;
  max-width: 100%;
  height: auto;
  outline: none;
  overflow: hidden;
  z-index: 1;
}

.advert-carousel__track {
  display: flex;
  align-items: flex-start;
  width: 100%;
  height: auto;
  transform: translate3d(0, 0, 0);
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
  box-sizing: border-box;
}

.advert-carousel__slide {
  position: relative;
  flex: 0 0 100%;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  height: auto;
  box-sizing: border-box;
  overflow: hidden;
  text-align: center;
  background: #0a0a0a;
}

.advert-carousel__link,
.advert-carousel__slide > a,
.advert-carousel__slide > picture {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  line-height: 0;
  overflow: hidden;
}

/* 图片：不强制拉满宽度；仅限制最大不超过容器，高度随原图比例 */
.advert-carousel__slide img {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  border: 0;
  object-fit: unset;
  user-select: none;
  -webkit-user-drag: none;
}

/* —— 箭头 —— */
.advert-carousel__btn {
  position: absolute;
  top: 50%;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--advert-carousel-arrow-size);
  height: var(--advert-carousel-arrow-size);
  margin: 0;
  padding: 0;
  border: 0;
  outline: none;
  border-radius: var(--advert-carousel-arrow-radius);
  background: var(--advert-carousel-arrow-bg);
  color: var(--advert-carousel-arrow-color);
  cursor: pointer;
  transform: translateY(-50%);
  transition: background 0.2s ease, opacity 0.2s ease, color 0.2s ease;
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
  appearance: none;
  -webkit-appearance: none;
}

.advert-carousel__btn:hover,
.advert-carousel__btn:focus,
.advert-carousel__btn:focus-visible {
  background: rgba(0, 0, 0, 0.7);
  border: 0;
  outline: none;
  box-shadow: none;
}

.advert-carousel__btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.advert-carousel__btn[hidden] {
  display: none !important;
}

.advert-carousel__btn--prev { left: 16px; }
.advert-carousel__btn--next { right: 16px; }

.advert-carousel__btn::before {
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  margin: 0;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  box-sizing: border-box;
  flex-shrink: 0;
}

.advert-carousel__btn--prev::before {
  transform: translateX(1.5px) rotate(-135deg);
}

.advert-carousel__btn--next::before {
  transform: translateX(-1.5px) rotate(45deg);
}

.advert-carousel--arrow-square {
  --advert-carousel-arrow-radius: 4px;
}

.advert-carousel--arrow-ghost {
  --advert-carousel-arrow-bg: transparent;
  --advert-carousel-arrow-color: #fff;
}
.advert-carousel--arrow-ghost .advert-carousel__btn {
  box-shadow: none;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}
.advert-carousel--arrow-ghost .advert-carousel__btn:hover,
.advert-carousel--arrow-ghost .advert-carousel__btn:focus,
.advert-carousel--arrow-ghost .advert-carousel__btn:focus-visible {
  background: rgba(255, 255, 255, 0.15);
  outline: none;
  border: 0;
  box-shadow: none;
}

.advert-carousel--arrow-minimal {
  --advert-carousel-arrow-bg: transparent;
  --advert-carousel-arrow-size: 36px;
}
.advert-carousel--arrow-minimal .advert-carousel__btn::before {
  width: 14px;
  height: 14px;
  border-width: 3px;
}

.advert-carousel--no-arrows .advert-carousel__btn {
  display: none !important;
}

/* —— 指示灯 —— */
.advert-carousel__dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 20px;
  z-index: 5;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--advert-carousel-dot-gap);
  margin: 0;
  padding: 0;
  pointer-events: none;
  box-sizing: border-box;
}

.advert-carousel__dots[hidden] {
  display: none !important;
}

.advert-carousel--no-dots .advert-carousel__dots {
  display: none !important;
}

.advert-carousel__dot {
  pointer-events: auto;
  width: var(--advert-carousel-dot-width);
  height: var(--advert-carousel-dot-height);
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: var(--advert-carousel-dot-radius);
  background: var(--advert-carousel-dot-color);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, width 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.advert-carousel__dot.is-active {
  background: var(--advert-carousel-dot-active);
  transform: scale(1.15);
}

.advert-carousel__dot:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.advert-carousel--dot-circle {
  --advert-carousel-dot-radius: 50%;
  --advert-carousel-dot-width: var(--advert-carousel-dot-size);
  --advert-carousel-dot-height: var(--advert-carousel-dot-size);
}

.advert-carousel--dot-rect {
  --advert-carousel-dot-radius: 2px;
  --advert-carousel-dot-width: 18px;
  --advert-carousel-dot-height: 4px;
}
.advert-carousel--dot-rect .advert-carousel__dot.is-active {
  --advert-carousel-dot-width: 28px;
  transform: none;
}

/* 单图静态：无箭头/指示灯 */
.advert-carousel--static .advert-carousel__btn,
.advert-carousel--static .advert-carousel__dots {
  display: none !important;
}
.advert-carousel--static .advert-carousel__track {
  transform: none !important;
  transition: none;
}

/* 内页 Banner：外层固定高度时，组件铺满并由 object-fit 裁切（仅 ny-banner 场景） */
.ny-banner {
  position: relative;
  overflow: hidden;
  min-height: 240px;
}
.ny-banner .site-advert-banner,
.ny-banner .advert-carousel {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: inherit;
  background: #0a0a0a;
}
.ny-banner .advert-carousel__viewport {
  position: absolute;
  inset: 0;
  height: 100%;
}
.ny-banner .advert-carousel__track,
.ny-banner .advert-carousel__slide,
.ny-banner .advert-carousel__slide > a {
  height: 100%;
}
.ny-banner .advert-carousel__slide img {
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.ny-banner .text {
  z-index: 2;
  pointer-events: none;
}

@media (max-width: 768px) {
  .advert-carousel {
    --advert-carousel-arrow-size: 36px;
  }
  .advert-carousel__btn--prev { left: 8px; }
  .advert-carousel__btn--next { right: 8px; }
  .advert-carousel__dots { bottom: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .advert-carousel__track { transition: none; }
}

@media only screen and (max-width: 960px) {
  .advert-carousel__slide img {
    width: 100%;
    max-width: 100%;
    height: auto;
  }
  .advert-carousel__prev,
  .advert-carousel__next {
    width: 32px;
    height: 32px;
  }
}