/* 基础重置与酸性艺术风变量 */
:root {
    --acid-primary: #00ff9d; /* 青绿 */
    --acid-secondary: #00ccff; /* 亮蓝 */
    --acid-bg: #0a0a12; /* 深空灰 */
    --acid-surface: rgba(255, 255, 255, 0.05); /* 半透明白 */
    --acid-text: #e0e0ff;
    --acid-border: rgba(0, 255, 157, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background: var(--acid-bg);
    color: var(--acid-text);
    min-height: 100vh;
    overflow-x: hidden;
}

body.preload #mainContent {
    opacity: 0;
}

/* Canvas 数码雨全屏固定 */
#matrixCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1; /* 作为背景 */
    pointer-events: none;
}

/* 主内容 - 毛玻璃效果 */
#mainContent {
    position: relative;
    min-height: 100vh;
    backdrop-filter: blur(15px) saturate(180%); /* 毛玻璃关键效果 */
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    background-color: var(--acid-surface);
    border: 1px solid var(--acid-border);
    box-shadow: 
        inset 0 0 50px rgba(0, 255, 157, 0.1),
        0 20px 60px rgba(0, 0, 0, 0.5);
    transition: opacity 1.5s ease-out;
    padding: 2rem;
    opacity: 1; /* JS 会控制显示 */
}

/* 多边形艺术类 */
.polygon-shape {
    clip-path: polygon(
        10% 0%, 90% 0%, 100% 50%, 
        90% 100%, 10% 100%, 0% 50%
    ); /* 六边形 */
    background: linear-gradient(135deg, 
        transparent 20%, 
        var(--acid-primary) 80%
    );
    border: none;
    transition: all 0.3s ease;
}

.polygon-shape:hover {
    clip-path: polygon(
        0% 20%, 60% 20%, 60% 0%, 
        100% 50%, 60% 100%, 60% 80%, 
        0% 80%
    ); /* 悬停时变形 */
    background: linear-gradient(135deg, 
        var(--acid-primary), 
        var(--acid-secondary)
    );
}

/* 导航栏酸性风格 */
.acid-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 2px solid;
    border-image: linear-gradient(90deg, 
        transparent, 
        var(--acid-primary), 
        transparent
    ) 1;
}

.nav-logo {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(90deg, 
        var(--acid-primary), 
        var(--acid-secondary)
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: 2px;
}

/* 故障文字效果 */
.glitch {
    position: relative;
    animation: glitch-skew 4s infinite linear alternate-reverse;
}
.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.glitch::before {
    animation: glitch-anim 5s infinite linear alternate-reverse;
    color: #ff00ff;
    z-index: -1;
}
.glitch::after {
    animation: glitch-anim2 3s infinite linear alternate-reverse;
    color: #00ffff;
    z-index: -2;
}
@keyframes glitch-anim { /* ... 关键帧代码 ... */ }

/* 音乐控制栏 */
.music-control {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.7);
    padding: 10px 15px;
    border-radius: 30px;
    backdrop-filter: blur(10px);
}
.music-control button {
    background: none;
    border: 1px solid var(--acid-primary);
    color: var(--acid-primary);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s;
}

/* 英雄区域 */
.hero {
    text-align: center;
    padding: 8rem 2rem;
}
.avatar {
    width: 180px;
    height: 180px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--acid-primary);
    box-shadow: 0 0 40px var(--acid-primary);
}
.acid-title {
    font-size: 4.5rem;
    margin: 2rem 0;
    text-transform: uppercase;
}

/* 履历时间线 */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 4rem auto;
}
.timeline::before { /* 时间轴线 */ }
.timeline-item {
    background: rgba(10, 10, 18, 0.8);
    border-left: 5px solid var(--acid-primary);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 10px 10px 0;
    position: relative;
}
.timeline-item::before { /* 时间点 */ }