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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
    min-height: 100vh;
    color: #ffffff;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

header {
    text-align: center;
    margin-bottom: 60px;
}

.main-title {
    font-size: 4rem;
    font-weight: 900;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #ffeaa7);
    background-size: 400% 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease-in-out infinite;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.3);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.subtitle {
    font-size: 1.2rem;
    color: #b8b8b8;
    font-weight: 300;
    letter-spacing: 1px;
}

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.cards-container {
    display: flex;
    flex-direction: row;
    gap: 30px;
    width: 100%;
    max-width: 800px;
    justify-content: center;
}

.card {
    position: relative;
    width: 300px;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.card-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: transform 0.4s ease;
}

.card:hover .card-background {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.3) 100%);
    transition: opacity 0.3s ease;
}

.card:hover .card-overlay {
    opacity: 0.8;
}

.card-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.card-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    transition: all 0.3s ease;
}

.card:hover .card-content h2 {
    transform: translateY(-5px);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.9);
}

.card-content p {
    font-size: 1.1rem;
    color: #e0e0e0;
    font-weight: 300;
    opacity: 0.9;
    transition: all 0.3s ease;
}

.card:hover .card-content p {
    opacity: 1;
    transform: translateY(-3px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .cards-container {
        flex-direction: column;
    }
    
    .card {
        width: 100%;
        height: 200px;
    }
    
    .card-content h2 {
        font-size: 2rem;
    }
    
    .container {
        padding: 20px 15px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .cards-container {
        flex-direction: column;
    }
    
    .card {
        width: 100%;
        height: 180px;
    }
    
    .card-content h2 {
        font-size: 1.5rem;
    }
    
    .card-content p {
        font-size: 1rem;
    }
}