:root {
    --primary-color: #34c759;
    --secondary-color: #ffb700;
    --text-color: #333;
    --background-color: #f5f5f5;
    --border-color: #e0e0e0;
    --yellow-color: #ffb700;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.4;
    margin: 0;
    padding: 0;
}

.mui-bar-nav {
    background-color: #ffffff;
    box-shadow: none;
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 48px;
}

.mui-title {
    color: var(--text-color) !important;
    font-size: 18px;
    text-align: center;
    position: static !important;
    transform: none !important;
}

.mui-content {
    padding: 0;
    padding-top: 48px;
    background-color: var(--background-color);
}

.container {
    padding: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.card {
    background: #fff;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.card-title {
    font-size: 15px;
    font-weight: 500;
    margin: 0 0 12px 0;
    color: var(--text-color);
}

.card-subtitle {
    font-size: 14px;
    color: #ff3b30;
    margin: 12px 0 0 0;
    text-align: center;
    font-weight: 600;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    letter-spacing: 0.3px;
}

.btn-group {
    display: flex;
    gap: 8px;
    margin: 0;
}

.btn-group button {
    flex: 1;
    font-size: 14px;
    padding: 8px 12px;
    white-space: nowrap;
    color: #fff;
}

.input-group {
    margin-bottom: 12px;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group h4 {
    font-size: 15px;
    margin: 0 0 8px 0;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-info-inline {
    color: #1900ff;
    font-size: 14px;
    font-weight: 500;
    margin: 0;
}

input[type="text"], textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    margin-bottom: 8px;
    background: #fff;
}

textarea {
    resize: none;
}

input[type="text"]:focus, textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

.mui-btn {
    border-radius: 6px;
    font-size: 14px;
    text-transform: none;
    border: none;
    margin: 0;
    padding: 8px 12px;
    color: #fff;
    height: 36px;
    line-height: 20px;
}

.mui-btn-primary {
    background-color: var(--primary-color);
}

.mui-btn-warning {
    background-color: var(--yellow-color);
}

.mui-btn-success {
    background-color: var(--primary-color);
}

#qr-reader {
    max-width: 100%;
    margin: 12px 0;
    border-radius: 6px;
    overflow: hidden;
    height: 200px;
}

#qr-reader video {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.file-info {
    margin: 12px 0 0 0;
}

.file-info h5 {
    margin: 4px 0;
    font-size: 13px;
    color: #666;
}

#generate_download_button {
    width: 100%;
    margin: 0;
    padding: 10px;
    font-size: 15px;
    background-color: var(--primary-color);
    height: 40px;
    border-radius: 6px;
}

#generate_null_button {
    width: 100%;
    margin: 0;
    padding: 10px;
    font-size: 15px;
    background-color: #829887;
    height: 40px;
    border-radius: 6px;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }
    
    .card {
        padding: 14px;
        margin-bottom: 10px;
    }
    
    .mui-btn {
        font-size: 13px;
        padding: 8px 10px;
    }

    input[type="text"], textarea {
        font-size: 13px;
        padding: 8px;
    }
}

/* Toast 提醒样式 */
.toast-container {
    position: fixed;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    pointer-events: none;
}

.toast {
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 14px;
    margin-bottom: 10px;
    animation: fadeIn 0.3s ease-out;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    text-align: center;
    min-width: 200px;
    max-width: 80%;
    word-wrap: break-word;
}

.toast.fade-out {
    animation: fadeOut 0.3s ease-out forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-20px);
    }
}