/* 高级背景效果 */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-color: var(--background-color);
    background-image: 
        linear-gradient(rgba(0, 255, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 0, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    perspective: 1000px;
}

.cyber-grid::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.8) 70%);
}

/* 扫描线效果 */
.scan-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0) 50%,
        rgba(0, 0, 0, 0.1) 50%
    );
    background-size: 100% 4px;
    opacity: 0.2;
}

/* 闪烁效果 */
.flicker {
    animation: flicker 5s infinite;
}

@keyframes flicker {
    0%, 19.999%, 22%, 62.999%, 64%, 64.999%, 70%, 100% {
        opacity: 1;
    }
    20%, 21.999%, 63%, 63.999%, 65%, 69.999% {
        opacity: 0.8;
    }
}

/* 故障效果 */
.glitch-text {
    position: relative;
    display: inline-block;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
}

.glitch-text::before {
    color: #ff00ff;
    z-index: -1;
    animation: glitch-animation 3s infinite;
}

.glitch-text::after {
    color: #00ffff;
    z-index: -2;
    animation: glitch-animation 2s infinite;
}

@keyframes glitch-animation {
    0%, 100% {
        opacity: 0;
        transform: translate(0);
    }
    7% {
        opacity: 0.75;
        transform: translate(-2px, 3px);
    }
    10% {
        opacity: 0;
        transform: translate(0);
    }
    27% {
        opacity: 0;
        transform: translate(0);
    }
    30% {
        opacity: 0.75;
        transform: translate(2px, -3px);
    }
    35% {
        opacity: 0;
        transform: translate(0);
    }
}

/* 霓虹灯效果 */
.neon-text {
    text-shadow: 
        0 0 5px var(--primary-color),
        0 0 10px var(--primary-color),
        0 0 20px var(--primary-color),
        0 0 40px var(--primary-color);
    animation: neon-pulse 2s infinite alternate;
}

@keyframes neon-pulse {
    from {
        text-shadow: 
            0 0 5px var(--primary-color),
            0 0 10px var(--primary-color),
            0 0 20px var(--primary-color),
            0 0 40px var(--primary-color);
    }
    to {
        text-shadow: 
            0 0 5px var(--primary-color),
            0 0 10px var(--primary-color),
            0 0 30px var(--primary-color),
            0 0 60px var(--primary-color);
    }
}