body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
}

.tabs {
    display: flex;
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 10px;
    border: none;
    background-color: #f0f0f0;
    cursor: pointer;
    font-size: 16px;
}

.tab-btn.active {
    background-color: #007bff;
    color: white;
}

textarea {
    width: 100%;
    height: 150px;
    margin: 10px 0;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    resize: vertical;
}

input[type="password"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
}

input[type="text"],
input[type="email"] {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    margin: 10px 0;
}

button:hover {
    background-color: #0056b3;
}

.key-result {
    margin-top: 20px;
}

.key-result h3 {
    margin: 10px 0;
    color: #333;
}

.save-btn {
    background-color: #28a745;
    margin: 5px 0 15px 0;
}

.save-btn:hover {
    background-color: #218838;
}

.result-container {
    position: relative;
    margin: 10px 0;
}

.result-container textarea {
    margin: 0;
}

.copy-btn {
    background-color: #6c757d;
    width: auto;
    padding: 5px 15px;
    position: absolute;
    right: 10px;
    top: 10px;
    font-size: 14px;
}

.copy-btn:hover {
    background-color: #5a6268;
}

.copy-btn.success {
    background-color: #28a745;
}

.char-counter {
    color: #666;
    font-size: 14px;
    margin: 5px 0;
}

.qr-container {
    text-align: center;
    margin: 20px 0;
}

#encryptQRCode {
    margin: 20px auto;
}

#encryptQRCode canvas {
    max-width: 100%;
    height: auto;
}

.qr-btn {
    background-color: #17a2b8;
}

.qr-btn:hover {
    background-color: #138496;
}

.scan-btn {
    background-color: #6610f2;
    margin-top: 10px;
}

.scan-btn:hover {
    background-color: #520dc2;
}

#qrReader {
    width: 100%;
    max-width: 600px;
    margin: 20px auto;
}

.decrypt-input-container {
    position: relative;
}

/* 语言选择器样式 */
.lang-selector {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-bottom: 10px;
}

.lang-selector label {
    margin-right: 10px;
    color: #333;
}

.lang-selector select {
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
    cursor: pointer;
}