* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "微软雅黑", sans-serif;
    background: #f8f9fa;
    color: #333;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}
.header {
    text-align: center;
    margin-bottom: 30px;
}
.header h1 {
    color: #2d3748;
    margin-bottom: 10px;
}
.visit-count {
    color: #718096;
    font-size: 14px;
}
.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.card h2 {
    color: #2d3748;
    margin-bottom: 15px;
    font-size: 18px;
    border-left: 4px solid #007bff;
    padding-left: 10px;
}
.form-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}
.form-group input, .form-group select {
    flex: 1;
    min-width: 120px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}
.form-group button {
    min-width: 120px;
    padding: 10px;
    background: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.form-group button:hover {
    background: #0056b3;
}
.strategy-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}
.strategy-group select {
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #ddd;
}
.strategy-group button {
    padding: 8px 15px;
    background: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.strategy-group button:hover {
    background: #218838;
}
.url-list h3 {
    font-size: 16px;
    color: #4a5568;
    margin-bottom: 10px;
}
.url-list ul {
    list-style: none;
    padding-left: 0;
}
.url-list li {
    padding: 10px;
    border-bottom: 1px dashed #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 5px;
}
.url-list li span {
    flex: 1;
    font-size: 14px;
}
.delete-btn {
    padding: 4px 8px;
    background: #dc3545;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
}
.delete-btn:hover {
    background: #c82333;
}
.qrcode-container {
    margin-top: 15px;
    text-align: center;
}
.qrcode-container img {
    max-width: 300px;
    border: 1px solid #eee;
    padding: 10px;
    background: white;
    border-radius: 5px;
}
.tips {
    font-size: 12px;
    color: #718096;
    margin-top: 5px;
}