/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    font-family: 'Microsoft YaHei', sans-serif;
    overflow: hidden;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    animation: fadeIn 1.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.welcome-text {
    color: rgba(255,255,255,0.9);
    font-size: 4rem;
    text-shadow: 0 0 10px #00f3ff,
                 0 0 20px #00f3ff,
                 0 0 30px #00f3ff;
    margin-bottom: 2rem;
    position: relative;
}

.neon-line {
    width: 200px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00f3ff, transparent);
    margin: 20px 0;
    animation: glow 2s infinite;
}

@keyframes glow {
    50% { opacity: 0.6; }
}

.sub-text {
    color: rgba(255,255,255,0.8);
    font-size: 1.5rem;
    letter-spacing: 2px;
}

.footer {
    position: fixed;
    bottom: 20px;
    width: 100%;
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    z-index: 3;
}

@media (max-width: 768px) {
    .welcome-text {
        font-size: 2.5rem;
        text-align: center;
        padding: 0 15px;
    }
}