* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.header {
    background: linear-gradient(to right, #4a00e0, #8e2de2);
    color: white;
    padding: 25px;
    text-align: center;
}

.header h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.header p {
    opacity: 0.9;
}

.content {
    padding: 30px;
}

.tab-container {
    display: flex;
    margin-bottom: 25px;
    border-bottom: 1px solid #e0e0e0;
}

.tab {
    padding: 12px 25px;
    cursor: pointer;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

.tab.active {
    color: #4a00e0;
    border-bottom: 3px solid #4a00e0;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

input, textarea, select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border 0.3s;
}

input:focus, textarea:focus, select:focus {
    border-color: #4a00e0;
    outline: none;
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.btn {
    background: linear-gradient(to right, #4a00e0, #8e2de2);
    color: white;
    border: none;
    padding: 14px 25px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.btn-block {
    display: block;
    width: 100%;
}

.result {
    margin-top: 25px;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 8px;
    border-left: 4px solid #4a00e0;
}

.link-box {
    background-color: #f0f0f0;
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
    word-break: break-all;
    font-family: monospace;
}

.copy-btn {
    background-color: #4a00e0;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 10px;
}

.message {
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
    text-align: center;
}

.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

.info {
    background-color: #e3f2fd;
    color: #1565c0;
    border: 1px solid #bbdefb;
}

.warning {
    background-color: #fff8e1;
    color: #ff8f00;
    border: 1px solid #ffecb3;
}

.hidden {
    display: none;
}

.expiry-info {
    display: flex;
    justify-content: space-between;
    margin-top: 5px;
    font-size: 14px;
    color: #666;
}

.footer {
    text-align: center;
    padding: 20px;
    color: #666;
    font-size: 14px;
    border-top: 1px solid #e0e0e0;
}

.key-group {
    display: flex;
    gap: 10px;
}

.key-group input {
    flex: 1;
}

.generate-key-btn {
    background-color: #f0f0f0;
    color: #333;
    border: 1px solid #ddd;
    padding: 12px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    white-space: nowrap;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.checkbox-group input {
    width: auto;
}

@media (max-width: 600px) {
    .container {
        border-radius: 10px;
    }
    
    .header {
        padding: 20px 15px;
    }
    
    .content {
        padding: 20px 15px;
    }
    
    .tab {
        padding: 10px 15px;
        font-size: 14px;
    }
    
    .key-group {
        flex-direction: column;
    }
}

body {
    -webkit-user-select: none; /* Chrome/Safari */
    -moz-user-select: none;    /* Firefox */
    -ms-user-select: none;     /* IE10+ */
    user-select: none;         /* Standard syntax */
}

/*禁止快捷键查看和控制源码提示显示*/

.blocked-message {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: yellow;
    color: rgb(0, 0, 0);
    padding: 15px 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    z-index: 9999;
}