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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.header {
    height: 4px;
    background-color: #333;
    width: 100%;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px;
    text-align: center;
}

.main-title {
    font-size: 2.5rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 60px;
    font-weight: normal;
}

.cards-container {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 800px;
    width: 100%;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #4CAF50;
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.card-content {
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 30px;
}

.access-btn {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    min-width: 140px;
}

.access-btn:hover {
    background-color: #45a049;
    transform: scale(1.05);
}

.access-btn:active {
    transform: scale(0.98);
}

/* 卡片域名和访问量样式 */
.card-domain {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 8px;
    font-weight: 500;
}

.card-visits {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 20px;
}

/* 无线路提示 */
.no-routes {
    text-align: center;
    padding: 60px 20px;
    color: #666;
    font-size: 1.1rem;
}

.no-routes p {
    margin: 0;
}

/* 加载状态样式 */
.loading-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-content {
    text-align: center;
    padding: 40px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    width: 90%;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #e0e0e0;
    border-top: 4px solid #4CAF50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-title {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
        margin-bottom: 40px;
    }
    
    .cards-container {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .card {
        width: 100%;
        max-width: 400px;
    }
    
    .card-content {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 20px 15px;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 0.9rem;
        margin-bottom: 30px;
    }
    
    .card-content {
        padding: 25px 15px;
    }
    
    .access-btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
}