.case-showcase {
  position: relative;
  min-height: 1392px;
  padding: 150px 24px 84px;
  overflow: hidden;
  background: #000;
  color: #f5f5f7;
}

.case-showcase__heading,
.case-showcase__media,
.case-showcase__controls {
  opacity: 0;
  transform: translateY(var(--showcase-distance, 30px));
  transition:
    opacity var(--showcase-opacity-ms, 900ms) ease,
    transform var(--showcase-move-ms, 700ms) cubic-bezier(.16, 1, .3, 1);
}

.case-showcase.is-visible .case-showcase__heading,
.case-showcase.is-visible .case-showcase__media,
.case-showcase.is-visible .case-showcase__controls {
  opacity: 1;
  transform: translateY(0);
}

.case-showcase.is-visible .case-showcase__media {
  transition-delay: var(--showcase-stagger-ms, 150ms);
}

.case-showcase.is-visible .case-showcase__controls {
  transition-delay: calc(var(--showcase-stagger-ms, 150ms) * 2);
}

.case-showcase__title {
  width: fit-content;
  margin: 0 auto;
  color: transparent;
  font: 630 64px/1.33 "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: -.02em;
  text-align: center;
  background:
    linear-gradient(117.19deg, #fec28a 4.97%, #ca4b09 76.02%),
    linear-gradient(90deg, #c84809, #c84809);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.case-showcase__title span,
.case-showcase__description span {
  display: block;
}

.case-showcase__description {
  width: min(100%, 663px);
  margin: 57px auto 0;
  color: #85858a;
  font: 630 15px/20px "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-align: center;
}

.case-showcase__media {
  position: relative;
  width: min(1440px, calc(100% - 48px));
  height: 586px;
  margin: 83px auto 0;
}

.case-showcase__state {
  position: absolute;
  z-index: 0;
  inset: 0;
  display: none;
  opacity: 0;
  pointer-events: none;
}

.case-showcase__state.is-active {
  z-index: 1;
  display: block;
  opacity: 1;
  pointer-events: auto;
}

.case-showcase.is-visible .case-showcase__state.is-active {
  animation: case-showcase-panel-in var(--showcase-panel-ms, 180ms) ease-out both;
}

@keyframes case-showcase-panel-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.case-showcase__comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  width: 100%;
  height: 100%;
}

.case-showcase__comparison span {
  display: block;
  border-radius: 30px;
  background: #1d1d1f;
  overflow: hidden;
}

.case-showcase__comparison span img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-showcase__scroll-pane {
  position: relative;
  min-width: 0;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  box-sizing: border-box;
  border: 1px solid #000;
  border-radius: 30px;
  outline: none;
  background: #000;
  clip-path: inset(0 round 30px);
  scrollbar-width: none;
}

.case-showcase__scroll-pane::-webkit-scrollbar {
  display: none;
}

.case-showcase__scroll-pane:focus-visible {
  box-shadow: inset 0 0 0 2px #2997f8;
}

.case-showcase__scroll-pane img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  user-select: none;
}

.case-showcase__phones {
  display: flex;
  justify-content: center;
  gap: 40px;
  width: min(610px, 100%);
  height: 100%;
  margin: 0 auto;
}

.case-showcase__phone {
  position: relative;
  flex: 0 1 278px;
  width: 278px;
  height: 100%;
  aspect-ratio: 278 / 579;
}

.case-showcase__phone-screen {
  position: absolute;
  z-index: 0;
  top: 1.5358%;
  right: 3.1579%;
  bottom: 1.3652%;
  left: 3.5088%;
  overflow: hidden;
  border-radius: 15.4135% / 7.2056%;
  background: #000;
  clip-path: inset(0 round 15.4135% / 7.2056%);
}

.case-showcase__phone-screen--scroll {
  overflow-y: auto;
  overscroll-behavior: contain;
  outline: none;
  scrollbar-width: none;
}

.case-showcase__phone-screen--scroll::-webkit-scrollbar {
  display: none;
}

.case-showcase__phone-screen--scroll:focus-visible {
  box-shadow: inset 0 0 0 2px #2997f8;
}

.case-showcase__phone-screen--scroll img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  user-select: none;
}

/* APP 轮播模式 — 自动切换整屏截图，模拟手指点击 */
.case-showcase__phone-screen--carousel {
  overflow: hidden;
  background: #000;
}

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

.case-showcase__carousel-track img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  opacity: 0;
  transform: scale(1.12);
  filter: blur(8px);
  transition:
    opacity 560ms cubic-bezier(.32, .72, 0, 1),
    transform 560ms cubic-bezier(.32, .72, 0, 1),
    filter 560ms ease;
  will-change: opacity, transform, filter;
}

.case-showcase__carousel-track img.is-current {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

/* 手指点击涟漪 — 圆点 + 扩散环 */
.case-showcase__tap {
  position: absolute;
  z-index: 2;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
  /* 默认隐藏在屏幕外，由 JS 设置位置 */
  left: 50%;
  top: 50%;
}

.case-showcase__tap.is-tapping {
  animation: case-showcase-tap 720ms ease-out forwards;
}

.case-showcase__tap::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, .55);
  box-shadow: 0 0 12px rgba(255, 255, 255, .35);
}

.case-showcase__tap::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .6);
  opacity: 0;
}

@keyframes case-showcase-tap {
  0% {
    opacity: 0;
    transform: scale(.4);
  }
  18% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(2.4);
  }
}

@keyframes case-showcase-tap-ring {
  0% {
    opacity: .8;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(2.8);
  }
}

.case-showcase__tap.is-tapping::after {
  animation: case-showcase-tap-ring 720ms ease-out forwards;
}

.case-showcase__phone-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.case-showcase__replay {
  position: absolute;
  z-index: 2;
  bottom: 24px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 5px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 18px;
  background: rgba(0, 0, 0, .72);
  color: #fff;
  font: 630 13px/36px "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, 6px);
  pointer-events: none;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition:
    opacity 200ms ease-out,
    transform 200ms cubic-bezier(.16, 1, .3, 1),
    background-color 160ms ease-out;
}

.case-showcase__replay.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

.case-showcase__replay:hover {
  background: rgba(30, 30, 30, .88);
}

.case-showcase__replay:focus-visible {
  outline: 2px solid #2997f8;
  outline-offset: 2px;
}

.case-showcase__phone-frame {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: fill;
  pointer-events: none;
  user-select: none;
}

.case-showcase__controls {
  width: min(798px, calc(100% - 32px));
  margin: 77px auto 0;
  text-align: center;
}

.case-showcase__tabs {
  position: relative;
  display: flex;
  gap: 14.5px;
  width: 798px;
  max-width: 100%;
  height: 43px;
  margin: 0 auto;
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: 21.5px;
  background: #141414;
  scrollbar-width: none;
}

.case-showcase__tabs::-webkit-scrollbar {
  display: none;
}

.case-showcase__indicator {
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  width: 148px;
  height: 43px;
  border-radius: 21.5px;
  background: #fff;
  transition:
    left var(--showcase-indicator-ms, 320ms) ease-out,
    width var(--showcase-indicator-ms, 320ms) ease-out;
  will-change: left, width;
}

.case-showcase__tab {
  position: relative;
  z-index: 1;
  flex: 0 0 148px;
  width: 148px;
  height: 43px;
  padding: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: rgba(255, 255, 255, .8);
  font: 330 18px/43px "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
  transition: color 120ms ease-out;
}

.case-showcase__tab.is-active {
  color: #000;
  transition: color 160ms ease-in calc(var(--showcase-indicator-ms, 320ms) / 2);
}

.case-showcase__tab:focus-visible {
  border-radius: 21.5px;
  box-shadow: inset 0 0 0 2px #2997f8;
}

.case-showcase__hint,
.case-showcase__copy {
  margin-right: auto;
  margin-left: auto;
  color: #b5b5b5;
  font: 630 16px/normal "MiSans", "PingFang SC", "Microsoft YaHei", sans-serif;
  text-align: center;
}

.case-showcase__hint {
  margin-top: 31px;
  margin-bottom: 0;
}

.case-showcase__copy {
  margin-top: 8px;
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .case-showcase {
    min-height: 980px;
    padding: 80px 16px 56px;
  }

  .case-showcase__title {
    font-size: clamp(36px, 10.5vw, 52px);
    line-height: 1.2;
  }

  .case-showcase__description {
    margin-top: 32px;
    font-size: 14px;
    line-height: 1.55;
  }

  .case-showcase__media {
    width: 100%;
    height: min(337px, 86vw);
    margin-top: 52px;
  }

  .case-showcase__comparison {
    gap: 12px;
  }

  .case-showcase__comparison span {
    border-radius: 20px;
  }

  .case-showcase__scroll-pane {
    border-radius: 20px;
    clip-path: inset(0 round 20px);
  }

  .case-showcase__phones {
    gap: 16px;
  }

  .case-showcase__replay {
    bottom: 14px;
    height: 30px;
    padding: 0 10px;
    border-radius: 15px;
    font-size: 11px;
    line-height: 30px;
  }

  .case-showcase__controls {
    width: 100%;
    margin-top: 48px;
  }

  .case-showcase__tabs {
    box-sizing: border-box;
    justify-content: flex-start;
    padding-right: calc((100% - 148px) / 2);
    padding-left: calc((100% - 148px) / 2);
  }

  .case-showcase__hint,
  .case-showcase__copy {
    padding: 0 12px;
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .case-showcase__heading,
  .case-showcase__media,
  .case-showcase__controls,
  .case-showcase__state,
  .case-showcase__indicator,
  .case-showcase__replay {
    animation: none;
    transition: none;
  }

  .case-showcase__heading,
  .case-showcase__media,
  .case-showcase__controls {
    opacity: 1;
    transform: none;
  }
}