/* 动画库 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleDown {
    from {
        opacity: 0;
        transform: scale(1.1);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-180deg);
    }
    to {
        opacity: 1;
        transform: rotate(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

@keyframes swing {
    20% {
        transform: rotate3d(0, 0, 1, 15deg);
    }
    40% {
        transform: rotate3d(0, 0, 1, -10deg);
    }
    60% {
        transform: rotate3d(0, 0, 1, 5deg);
    }
    80% {
        transform: rotate3d(0, 0, 1, -5deg);
    }
    100% {
        transform: rotate3d(0, 0, 1, 0);
    }
}

@keyframes rubberBand {
    0% {
        transform: scale3d(1, 1, 1);
    }
    30% {
        transform: scale3d(1.25, 0.75, 1);
    }
    40% {
        transform: scale3d(0.75, 1.25, 1);
    }
    50% {
        transform: scale3d(1.15, 0.85, 1);
    }
    65% {
        transform: scale3d(0.95, 1.05, 1);
    }
    75% {
        transform: scale3d(1.05, 0.95, 1);
    }
    100% {
        transform: scale3d(1, 1, 1);
    }
}

@keyframes flipInX {
    0% {
        transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
        opacity: 0;
    }
    40% {
        transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
    }
    60% {
        transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
    }
    80% {
        transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    }
    100% {
        transform: perspective(400px);
        opacity: 1;
    }
}

@keyframes flipInY {
    0% {
        transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
        opacity: 0;
    }
    40% {
        transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
    }
    60% {
        transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
    }
    80% {
        transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
    }
    100% {
        transform: perspective(400px);
        opacity: 1;
    }
}

/* 使用类 */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.fade-out {
    animation: fadeOut 0.6s ease-out;
}

.slide-up {
    animation: slideUp 0.6s ease-out;
}

.slide-down {
    animation: slideDown 0.6s ease-out;
}

.slide-left {
    animation: slideLeft 0.6s ease-out;
}

.slide-right {
    animation: slideRight 0.6s ease-out;
}

.scale-up {
    animation: scaleUp 0.6s ease-out;
}

.scale-down {
    animation: scaleDown 0.6s ease-out;
}

.rotate-in {
    animation: rotateIn 0.6s ease-out;
}

.bounce-in {
    animation: bounceIn 0.6s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

.shake {
    animation: shake 0.5s ease-out;
}

.swing {
    animation: swing 1s ease-out;
}

.rubber-band {
    animation: rubberBand 1s ease-out;
}

.flip-in-x {
    animation: flipInX 0.6s ease-out;
}

.flip-in-y {
    animation: flipInY 0.6s ease-out;
}