/* Google 街景风格：画面上的白色虚拟方向箭头 */
.sv-arrows-layer {
  position: absolute;
  inset: 0;
  z-index: 6;
  pointer-events: none;
  overflow: hidden;
}

.sv-arrows-layer.is-hidden {
  display: none !important;
}

.sv-arrow {
  position: absolute;
  pointer-events: auto;
  border: none;
  background: transparent;
  padding: 0;
  margin: 0;
  cursor: pointer;
  color: #fff;
  -webkit-tap-highlight-color: transparent;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.55)) drop-shadow(0 0 10px rgba(0, 0, 0, 0.25));
  transition: transform 0.15s ease, opacity 0.15s ease, filter 0.15s ease;
  opacity: 0.92;
  line-height: 0;
}

.sv-arrow:hover,
.sv-arrow:focus-visible {
  opacity: 1;
  outline: none;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.65)) drop-shadow(0 0 14px rgba(255, 255, 255, 0.35));
}

.sv-arrow:active {
  transform: scale(0.92);
  opacity: 1;
}

.sv-arrow svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* 前方大箭头：画面中下部，透视感 */
.sv-arrow--forward {
  left: 50%;
  bottom: 14%;
  width: 72px;
  height: 56px;
  transform: translateX(-50%);
}

.sv-arrow--forward:hover,
.sv-arrow--forward:focus-visible {
  transform: translateX(-50%) scale(1.08);
}

.sv-arrow--forward:active {
  transform: translateX(-50%) scale(0.94);
}

/* 左右转向：贴近画面两侧中部偏下 */
.sv-arrow--left,
.sv-arrow--right {
  top: 52%;
  width: 44px;
  height: 44px;
  transform: translateY(-50%);
  opacity: 0.78;
}

.sv-arrow--left {
  left: 4%;
}

.sv-arrow--right {
  right: 4%;
}

.sv-arrow--right svg {
  transform: scaleX(-1);
}

.sv-arrow--left:hover,
.sv-arrow--left:focus-visible,
.sv-arrow--right:hover,
.sv-arrow--right:focus-visible {
  opacity: 1;
  transform: translateY(-50%) scale(1.1);
}

.sv-arrow--left:active,
.sv-arrow--right:active {
  transform: translateY(-50%) scale(0.92);
}

/* 后退小箭头 */
.sv-arrow--back {
  left: 50%;
  bottom: 3.5%;
  width: 36px;
  height: 28px;
  transform: translateX(-50%);
  opacity: 0.7;
}

.sv-arrow--back:hover,
.sv-arrow--back:focus-visible {
  opacity: 1;
  transform: translateX(-50%) scale(1.08);
}

.sv-arrow--back:active {
  transform: translateX(-50%) scale(0.92);
}

@media (max-width: 640px) {
  .sv-arrow--forward {
    width: 64px;
    height: 50px;
    bottom: 16%;
  }
  .sv-arrow--left,
  .sv-arrow--right {
    width: 40px;
    height: 40px;
  }
  .sv-arrow--back {
    width: 32px;
    height: 24px;
  }
}