:root {
    --dark-bg: #0a0f1f;
    --neon-blue: #00f0ff;
    --neon-purple: #b026ff;
    --glass-border: rgba(255,255,255,0.2);
}

body {
    background: var(--dark-bg);
    color: #eef;
    font-family: 'Segoe UI', 'Poppins', system-ui;
    overflow-x: hidden;
}

/* 玻璃导航栏 */
.glass-nav {
    background: rgba(10,15,31,0.75);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.neon-text {
    font-weight: 700;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.tech-dot {
    color: var(--neon-blue);
    font-weight: 300;
}

/* Hero 区域 */
.hero-section {
    height: 100vh;
    background: radial-gradient(ellipse at 30% 40%, #0b1120, #03050a);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    border-bottom: 1px solid rgba(0,240,255,0.3);
}

.glitch {
    font-size: 4rem;
    font-weight: 800;
    text-transform: uppercase;
    position: relative;
    text-shadow: 0.05em 0 0 rgba(255,0,0,0.75), -0.05em -0.025em 0 rgba(0,255,255,0.75);
    animation: glitch 1s infinite;
}

@keyframes glitch {
    0%, 100% { text-shadow: 0.05em 0 0 rgba(255,0,0,0.5), -0.05em -0.025em 0 rgba(0,255,255,0.5); }
    25% { text-shadow: -0.05em 0.025em 0 rgba(255,0,0,0.75), 0.05em 0.05em 0 rgba(0,255,255,0.75); }
    50% { text-shadow: 0.05em -0.025em 0 rgba(255,0,0,0.75), -0.05em 0 0 rgba(0,255,255,0.75); }
    75% { text-shadow: -0.05em 0 0 rgba(255,0,0,0.75), 0.05em -0.025em 0 rgba(0,255,255,0.75); }
}

.pulse-btn {
    animation: pulse 1.5s infinite;
    border-radius: 40px;
    padding: 12px 32px;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0,240,255,0.7); }
    70% { box-shadow: 0 0 0 15px rgba(0,240,255,0); }
    100% { box-shadow: 0 0 0 0 rgba(0,240,255,0); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    animation: bounce 2s infinite;
    opacity: 0.7;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* 科技卡片 */
.tech-card {
    background: rgba(20,30,55,0.6);
    backdrop-filter: blur(12px);
    border-radius: 28px;
    padding: 2rem;
    border: 1px solid rgba(0,240,255,0.3);
    transition: all 0.3s;
    height: 100%;
}

.quantum-glow {
    box-shadow: 0 0 20px rgba(0,240,255,0.2);
}

.quantum-glow:hover {
    box-shadow: 0 0 35px rgba(0,240,255,0.5);
    transform: translateY(-5px);
}

.cyber-bg {
    background: linear-gradient(145deg, rgba(176,38,255,0.1), rgba(0,0,0,0.3));
    border-color: var(--neon-purple);
}

.product-card {
    background: rgba(0,0,0,0.4);
    border-radius: 24px;
    padding: 1.8rem;
    text-align: center;
    border: 1px solid #2a3a66;
    transition: 0.2s;
}

.product-card:hover {
    border-color: var(--neon-blue);
    background: rgba(0,240,255,0.05);
}

.icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* 页脚 */
.footer {
    background: #03050a;
    padding: 2rem 0;
    border-top: 1px solid #1e2a4a;
    margin-top: 4rem;
}

/* 其余页面 */
.about-page, .contact-page {
    margin-top: 100px;
    padding-bottom: 80px;
}

.glass-form {
    background: rgba(255,255,255,0.05);
    padding: 1.5rem;
    border-radius: 20px;
}