.document-preview {
    position: relative;
    overflow: hidden;
    margin: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-radius: 4px;
}

.document-preview iframe,
.document-preview object,
.document-preview embed {
    border: none;
}

.doc-preview-placeholder {
    padding: 2rem;
    text-align: center;
    border: 1px dashed #ccc;
    color: #666;
    margin: 1rem 0;
}

.doc-preview-error {
    padding: 2rem;
    text-align: center;
    color: #dc3232;
    background: #fef0f0;
    border: 1px solid #fcd3d3;
    border-radius: 4px;
}

.doc-download-link {
    display: block;
    text-align: center;
    padding: 0.8rem;
    background: #007cba;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 1rem;
    transition: background 0.3s;
}

.doc-download-link:hover {
    background: #006ba1;
    color: white;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .document-preview {
        width: 100% !important;
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .document-preview {
        width: 100% !important;
        height: calc(100vh - 50px) !important; /* 占满小程序可视区域 */
        min-height: 400px;
    }
    .doc-preview-wechat {
        padding: 1rem;
        text-align: center;
        color: #333;
    }
	.doc-preview-wechat {
	    padding: 2rem 1rem;
	    text-align: center;
	    border: 1px solid #eee;
	    border-radius: 4px;
	    margin: 1rem 0;
	}
	.doc-preview-wechat p {
	    margin: 0 0 1rem 0;
	    color: #666;
	}
}