.pdf-upload-area {
    border: 2px dashed #dee2e6;
    border-radius: 4px;
    padding: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pdf-upload-area:hover {
    border-color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.05);
}

.pdf-upload-area.dragover {
    border-color: #0d6efd;
    background-color: rgba(13, 110, 253, 0.1);
}

.selected-images-list {
    max-height: 400px;
    overflow-y: auto;
}

.image-item {
    display: flex;
    align-items: center;
    padding: 0.5rem;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    margin-bottom: 0.5rem;
    background-color: #fff;
}

.image-item:hover {
    background-color: #f8f9fa;
}

.image-item img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 1rem;
}

.image-item .image-info {
    flex-grow: 1;
}

.image-item .image-name {
    margin: 0;
    font-size: 0.9rem;
    color: #212529;
}

.image-item .image-size {
    margin: 0;
    font-size: 0.8rem;
    color: #6c757d;
}

.image-item .image-actions {
    display: flex;
    gap: 0.5rem;
}

.image-item .btn-move {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.image-item .btn-remove {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

#debugInfo {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1050;
    min-width: 300px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: none;
}

#debugInfo.fade {
    transition: opacity 0.15s linear;
}

#debugInfo.fade.show {
    opacity: 1;
} 

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6b7280;
    margin-bottom: 0;
    line-height: 1.6;
}

.password-requirements {
    color: #6c757d;
    font-size: 0.875rem;
    text-align: left;
}

.form-control:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.form-control.is-valid {
    border-color: #198754;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-invalid {
    border-color: #dc3545;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.form-control.is-valid:focus {
    border-color: #198754;
    box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);
}

.form-control.is-invalid:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

/* 禁用状态的按钮样式 */
.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
}