:root {
    --bg-dark: #07090f;
    --acc-primary: #1a73e8;
    --acc-secondary: #00d2ff;
    --glass-bg: rgba(20, 25, 45, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f0f4f8;
    --text-muted: #8a99a8;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Outfit', 'Noto Sans SC', system-ui, sans-serif;
    overflow: hidden;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#tsparticles {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at center, #0a1128 0%, #050811 100%);
}

.content {
    text-align: center;
    max-width: 800px;
    padding: 2rem;
    z-index: 10;
    pointer-events: none; /* 让背景粒子可交互，点击穿透 */
}

h1.glow-text {
    font-size: 4rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #a0c4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-weight: 300;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    animation: fadeIn 1s ease-out forwards;
    pointer-events: auto; /* 允许点击卡片 */
}

.glass-card h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.glass-card p {
    line-height: 1.8;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-item .label {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--acc-secondary);
    letter-spacing: 1px;
}

.stat-item .value {
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

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

@media (max-width: 768px) {
    h1.glow-text { font-size: 2.5rem; }
    .glass-card { padding: 1.5rem; }
    .stats { flex-direction: column; gap: 1.5rem; }
}