/* style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2rem;
    color: #7f8c8d;
}

.payment-methods {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 40px;
}

.payment-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    max-width: 320px;
    width: 100%;
}

.payment-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.card-header {
    padding: 20px;
    background: linear-gradient(135deg, #6cf45a 0%, #0db023 100%);
    display: flex;
    justify-content: center;
    align-items: center;
}

#alipay-card .card-header {
    background: linear-gradient(135deg, #1e88e5 0%, #0d47a1 100%);
}

#bitcoin-card .card-header {
    background: linear-gradient(135deg, #f7931a 0%, #e67e22 100%);
}

.qr-code {
    width: 270px;
    height: 340px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.payment-card:hover .qr-code {
    transform: scale(1.05);
}

.card-body {
    padding: 20px;
    text-align: center;
}

.card-body h2 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.card-body p {
    color: #7f8c8d;
    font-size: 1rem;
}

footer {
    text-align: center;
    padding: 20px;
    color: #7f8c8d;
    border-top: 1px solid #eee;
    margin-top: 20px;
}

/* 链接样式 */
a {
    color: #3498db;
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

a:hover {
    color: #2980b9;
    text-decoration: underline;
    background-color: rgba(52, 152, 219, 0.1);
}

a:active {
    color: #1c638c;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .payment-methods {
        flex-direction: column;
        align-items: center;
    }
    
    .payment-card {
        max-width: 100%;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    header p {
        font-size: 1rem;
    }
}