body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    text-align: center;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 500px;
    width: 90%;
}

h1 {
    color: #333;
    margin-top: 0;
    font-size: 2.5em;
    margin-bottom: 30px;
}

.wheel-container {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
}

#wheel {
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
}

.pointer {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: #ff4757;
    clip-path: polygon(50% 100%, 0 0, 100% 0);
    z-index: 10;
}

#spin-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ffa502 100%);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 1.2em;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    margin: 30px auto;
    display: block;
}

#spin-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

#spin-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.result {
    font-size: 1.5em;
    color: #333;
    margin-top: 20px;
    min-height: 2em;
    font-weight: bold;
    color: #ff6b6b;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 500px) {
    .wheel-container {
        width: 300px;
        height: 300px;
    }
    
    #wheel {
        width: 300px;
        height: 300px;
    }
    
    h1 {
        font-size: 2em;
    }
    
    .result {
        font-size: 1.2em;
    }
}