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

body {
    font-family: 'Arial', sans-serif;
    background: #0a192f;
    color: #64ffda;
    line-height: 1.6;
    position: relative;
    min-height: 100vh;
}

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

#app {
    position: relative;
    z-index: 2;
    padding: 0;
}

/* 导航栏样式 */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #64ffda;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: #8892b0;
    text-decoration: none;
    padding: 0.5rem 0.8rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: #64ffda;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: #64ffda;
    animation: glow 2s ease-in-out infinite alternate;
}

.nav-emoji {
    margin-left: 5px;
    font-size: 1.2rem;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #64ffda;
    margin: 5px 0;
    transition: all 0.3s ease;
}

header {
    text-align: center;
    padding: 4rem 2rem;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: #64ffda;
    text-shadow: 0 0 10px rgba(100, 255, 218, 0.5);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 10px rgba(100, 255, 218, 0.5);
    }
    to {
        text-shadow: 0 0 20px rgba(100, 255, 218, 0.8);
    }
}

.subtitle {
    font-size: 1.5rem;
    color: #8892b0;
}

.tool-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: rgba(17, 34, 64, 0.8);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(100, 255, 218, 0.1);
    cursor: pointer;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 12px rgba(100, 255, 218, 0.2);
    border-color: rgba(100, 255, 218, 0.3);
}

.emoji {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.card .emoji {
    animation: float 3s ease-in-out infinite;
}

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

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 1rem;
    background: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(5px);
    text-align: center;
}

.beian-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.beian-icon {
    height: 20px;
    margin-right: 5px;
}

.separator {
    color: #8892b0;
}

a {
    color: #8892b0;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #64ffda;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .tool-cards {
        padding: 1rem;
    }
    
    .hamburger {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: rgba(10, 25, 47, 0.95);
        width: 100%;
        padding: 1rem;
        transition: all 0.3s ease;
        backdrop-filter: blur(10px);
    }
    
    .nav-links.active {
        left: 0;
    }
}

@media (max-width: 480px) {
    .beian-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .separator {
        display: none;
    }
    
    footer {
        padding: 0.8rem;
    }
}