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

:root {
    --primary-blue: #1a3a5f;
    --accent-orange: #ff6b35;
    --white: #ffffff;
    --light-blue: #2d5a87;
    --light-orange: #ff8c5a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    color: var(--primary-blue);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Logo Section */
header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

.logo-container {
    display: inline-block;
    position: relative;
}

.logo-image {
    max-width: 300px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: var(--white);
    border-radius: 20px;
    padding: 3rem;
    margin-bottom: 3rem;
    box-shadow: 0 10px 30px rgba(26, 58, 95, 0.1);
    text-align: center;
}

.title {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.description {
    font-size: 1.2rem;
    color: var(--light-blue);
    margin-bottom: 2rem;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.slogan {
    font-size: 1.5rem;
    color: var(--accent-orange);
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 1rem 2rem;
    border: 2px solid var(--accent-orange);
    border-radius: 50px;
    display: inline-block;
    background: rgba(255, 107, 53, 0.05);
}

/* Features Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--white);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(26, 58, 95, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(26, 58, 95, 0.15);
}

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

.feature-card h3 {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--light-blue);
    font-size: 1rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--light-blue);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .logo-image {
        max-width: 200px;
    }
    
    .hero {
        padding: 2rem 1.5rem;
    }
    
    .title {
        font-size: 1.8rem;
    }
    
    .description {
        font-size: 1rem;
    }
    
    .slogan {
        font-size: 1.2rem;
        padding: 0.8rem 1.5rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
}