/**
 * 特效CSS文件
 * 定义鼠标轨迹和蝴蝶动画样式
 */

/* 鼠标轨迹容器 */
.mouse-trail-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* 确保不会干扰鼠标事件 */
    z-index: 9999;
}

/* 轨迹点样式 */
.trail-point {
    position: absolute;
    border-radius: 50%;
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
    transform: translate(0, 0);
    pointer-events: none;
}

/* 蝴蝶容器 */
.butterfly-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
}

/* 蝴蝶特效样式 */
.butterfly {
    position: absolute;
    pointer-events: none;
    z-index: 9999;
    will-change: transform;
}

.butterfly img {
    width: 30px;
    height: 30px;
    animation: flutter 0.8s infinite alternate ease-in-out;
    filter: drop-shadow(0 0 3px rgba(255, 255, 255, 0.7));
}

@keyframes flutter {
    0% {
        transform: rotate(-10deg) scale(0.9);
    }
    100% {
        transform: rotate(10deg) scale(1.1);
    }
}

/* 不同颜色的蝴蝶 */
.butterfly.blue img {
    filter: hue-rotate(180deg) drop-shadow(0 0 3px rgba(0, 150, 255, 0.7));
}

.butterfly.purple img {
    filter: hue-rotate(270deg) drop-shadow(0 0 3px rgba(150, 0, 255, 0.7));
}

.butterfly.pink img {
    filter: hue-rotate(300deg) drop-shadow(0 0 3px rgba(255, 0, 150, 0.7));
}

.butterfly.yellow img {
    filter: hue-rotate(60deg) drop-shadow(0 0 3px rgba(255, 255, 0, 0.7));
}

.butterfly.green img {
    filter: hue-rotate(120deg) drop-shadow(0 0 3px rgba(0, 255, 150, 0.7));
}

/* 蝴蝶容器 */
#butterfly-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

/* 太阳图标发光效果 */
.sun-icon {
    color: #FFD700;
    animation: sun-glow 2s infinite alternate;
    filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.7));
}

@keyframes sun-glow {
    0% {
        filter: drop-shadow(0 0 3px rgba(255, 215, 0, 0.7));
        transform: scale(1);
    }
    100% {
        filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.9));
        transform: scale(1.1);
    }
}

/* 暗黑模式下的蝴蝶效果调整 */
.dark-mode .butterfly img {
    filter: brightness(1.2) drop-shadow(0 0 3px rgba(255, 255, 255, 0.5));
}

.dark-mode .butterfly.blue img {
    filter: hue-rotate(180deg) brightness(1.2) drop-shadow(0 0 3px rgba(0, 150, 255, 0.5));
}

.dark-mode .butterfly.purple img {
    filter: hue-rotate(270deg) brightness(1.2) drop-shadow(0 0 3px rgba(150, 0, 255, 0.5));
}

.dark-mode .butterfly.pink img {
    filter: hue-rotate(300deg) brightness(1.2) drop-shadow(0 0 3px rgba(255, 0, 150, 0.5));
}

.dark-mode .butterfly.yellow img {
    filter: hue-rotate(60deg) brightness(1.2) drop-shadow(0 0 3px rgba(255, 255, 0, 0.5));
}

.dark-mode .butterfly.green img {
    filter: hue-rotate(120deg) brightness(1.2) drop-shadow(0 0 3px rgba(0, 255, 150, 0.5));
}

/* 蝴蝶翅膀 */
.wing {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 50% 80% 80% 50%;
    opacity: 0.8;
    transform-origin: 0% 50%;
    transition: transform 0.1s ease;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* 左翅膀 */
.left-wing {
    left: 0;
    transform: rotateY(70deg);
}

/* 右翅膀 */
.right-wing {
    right: 0;
    transform: rotateY(-70deg);
}

/* 暗黑模式适配 */
body.dark-mode .trail-point {
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color), 0 0 20px var(--accent-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .butterfly {
        display: none; /* 在移动设备上隐藏蝴蝶以提高性能 */
    }
    
    .trail-point {
        width: 5px !important;
        height: 5px !important;
    }
}