/* 头像彩蛋样式 */
.site-avatar {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.site-avatar:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* 全屏彩蛋覆盖层 */
.fullscreen-easter-egg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}

/* 全屏粒子效果 */
.fullscreen-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.fullscreen-particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    animation: fullscreen-float 3s ease-out forwards;
}

@keyframes fullscreen-float {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    100% {
        opacity: 0;
        transform: scale(0.3) translateY(-100vh);
    }
}

/* 全屏文字效果 */
.fullscreen-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    font-weight: bold;
    text-align: center;
    color: #fff;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
    animation: fullscreen-text-bounce 2s ease-out;
    pointer-events: none;
    z-index: 10000;
}

@keyframes fullscreen-text-bounce {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.5);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.2);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* 全屏彩虹背景 */
.fullscreen-rainbow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, 
        #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, 
        #feca57, #ff9ff3, #ff6b6b, #4ecdc4
    );
    background-size: 400% 400%;
    animation: fullscreen-rainbow-shift 2s ease-in-out;
    opacity: 0.8;
}

@keyframes fullscreen-rainbow-shift {
    0% {
        background-position: 0% 50%;
        opacity: 0;
    }
    50% {
        opacity: 0.8;
    }
    100% {
        background-position: 100% 50%;
        opacity: 0;
    }
}

/* 全屏星星效果 */
.fullscreen-stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.fullscreen-star {
    position: absolute;
    color: #fff;
    font-size: 2rem;
    animation: fullscreen-star-twinkle 1.5s ease-in-out infinite;
}

@keyframes fullscreen-star-twinkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* 全屏爆炸效果 */
.fullscreen-explosion {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, transparent 70%);
    animation: fullscreen-explosion-grow 1s ease-out forwards;
}

@keyframes fullscreen-explosion-grow {
    0% {
        width: 0;
        height: 0;
        opacity: 1;
    }
    100% {
        width: 200vw;
        height: 200vh;
        opacity: 0;
    }
}

/* 全屏心形效果 */
.fullscreen-hearts {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.fullscreen-heart {
    position: absolute;
    color: #ff6b6b;
    font-size: 3rem;
    animation: fullscreen-heart-float 3s ease-out forwards;
}

@keyframes fullscreen-heart-float {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) scale(0.5);
    }
}

/* 旋转光环效果 */
.site-avatar::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 50%;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3);
    background-size: 300% 300%;
    animation: rotate-halo 3s linear infinite;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.site-avatar:hover::before {
    opacity: 0.8;
}

@keyframes rotate-halo {
    0% {
        background-position: 0% 50%;
        transform: rotate(0deg);
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
        transform: rotate(360deg);
    }
}

/* 粒子效果容器 */
.avatar-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: radial-gradient(circle, #fff, transparent);
    border-radius: 50%;
    animation: float-up 2s ease-out forwards;
    pointer-events: none;
}

@keyframes float-up {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) scale(0.5);
    }
}

/* 表情符号彩蛋 */
.avatar-emoji {
    position: absolute;
    font-size: 20px;
    animation: bounce-in 0.5s ease-out;
    pointer-events: none;
    z-index: 2;
}

@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    50% {
        transform: scale(1.2) rotate(180deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) rotate(360deg);
    }
}

/* 心跳效果 */
.site-avatar.heartbeat {
    animation: heartbeat 0.6s ease-in-out;
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.1);
    }
    50% {
        transform: scale(1.05);
    }
    75% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* 彩虹边框效果 */
.site-avatar.rainbow-border {
    border: 3px solid;
    border-image: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3) 1;
    animation: rainbow-border 2s linear infinite;
}

@keyframes rainbow-border {
    0% {
        border-image-source: linear-gradient(0deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3);
    }
    100% {
        border-image-source: linear-gradient(360deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57, #ff9ff3);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .site-avatar:hover {
        transform: scale(1.02);
    }
    
    .avatar-emoji {
        font-size: 16px;
    }
}