body {
    font-family: 'Noto Sans TC', sans-serif;
    background-color: #000;
    color: #1a1a1a;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    margin: 0;
    padding: 0;
    overflow: hidden;
    height: 100dvh;
    width: 100vw;
}

.font-serif-tc { font-family: 'Noto Serif TC', serif; }

.perspective-1000 { perspective: 1000px; }
.preserve-3d { transform-style: preserve-3d; }
.backface-hidden { backface-visibility: hidden; }
.rotate-y-180 { transform: rotateY(180deg); }

@keyframes breathing {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 5px rgba(243,206,36,0)); }
    50% { transform: scale(1.02); filter: drop-shadow(0 0 15px rgba(243,206,36,0.2)); }
}

@keyframes shimmer {
    0% { transform: translateX(-150%) skewX(-20deg); }
    100% { transform: translateX(150%) skewX(-20deg); }
}

@keyframes bounceIn {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.05); opacity: 1; }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

@keyframes wiggle {
  0%, 100% { transform: rotate(-8deg); }
  50% { transform: rotate(8deg); }
}

.animate-wiggle {
  animation: wiggle 2s ease-in-out infinite;
}

.animate-bounce {
  animation: bounceIn 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.animate-breathing { animation: breathing 4s ease-in-out infinite; }

/* 光線經過的動態效果 */
.shimmer-effect {
    position: relative;
    overflow: hidden;
}

.shimmer-effect::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    animation: shimmer 3s infinite;
}

.custom-scrollbar::-webkit-scrollbar { width: 5px; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: rgba(243,206,36,0.5); border-radius: 10px; }
.custom-scrollbar::-webkit-scrollbar-track { background: transparent; }

/* 燥點紋理疊加層 */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    content: "";
    opacity: 0.1;
    z-index: 5;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Ffilter id='noiseFilter'%3E%3FfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.no-scrollbar::-webkit-scrollbar {
    display: none;
}
.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}