* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.container {
width: 100%;
  max-width: 640px;
  position: relative;
  margin: 0 auto;
}

.container img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.home-btn {
  position: fixed;
  top: 20px;
  right: 24px;
  z-index: 9999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.12),
    0 1px 2px rgba(0, 0, 0, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
  -webkit-user-select: none;
  -moz-user-focus: none;
  -moz-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

.home-btn:hover {
  background: rgba(255, 255, 255, 0.28);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.16),
    0 2px 4px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
  transform: scale(1.07);
}

.home-btn:active {
  transform: scale(0.94);
  background: rgba(255, 255, 255, 0.35);
  box-shadow:
    0 2px 8px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.home-btn svg {
  width: 20px;
  height: 20px;
  stroke: rgba(30, 30, 30, 0.85);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition:
    stroke 0.2s ease,
    transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.home-btn:hover svg {
  transform: translateX(-2px);
}