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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0;
}

/* 导航栏样式 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar-logo a {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 1rem;
}

.nav-link:hover {
    color: #667eea;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    padding: 40px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    width: 100%;
    max-width: 1200px;
}

.hero {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 60px 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    text-align: center;
    backdrop-filter: blur(10px);
}

.logo h1 {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 40px;
}

.welcome-message h2 {
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 20px;
    font-weight: 700;
}

.description {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 50px;
    line-height: 1.6;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.feature-item {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 30px;
    border-radius: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 1.3rem;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.feature-item p {
    font-size: 0.95rem;
    color: #666;
    line-height: 1.5;
}

/* 页尾样式 */
.footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.1);
    padding: 30px 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.footer-content p {
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.icp-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: #999;
}

.icp-info a {
    color: #999;
    text-decoration: none;
    transition: none;
}

.icp-info a:hover {
    color: #999;
    text-decoration: none;
}

.icp-icon {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

@media (max-width: 768px) {
    .navbar-container {
        padding: 0 15px;
    }
    
    .navbar-menu {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
    
    .main-content {
        padding: 30px 15px;
    }
    
    .hero {
        padding: 40px 20px;
    }

    .logo h1 {
        font-size: 3rem;
    }

    .welcome-message h2 {
        font-size: 2rem;
    }

    .description {
        font-size: 1rem;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .icp-info {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .navbar-logo a {
        font-size: 1.5rem;
    }
    
    .navbar-menu {
        gap: 15px;
    }
    
    .nav-link {
        font-size: 0.8rem;
    }
    
    .logo h1 {
        font-size: 2.5rem;
    }

    .welcome-message h2 {
        font-size: 1.5rem;
    }

    .feature-item {
        padding: 20px;
    }
}