/* 工具页面样式 */
.tool-page {
    background: var(--card-background);
    border-radius: var(--border-radius);
    padding: 30px;
    margin: 20px 0;
    box-shadow: var(--shadow);
}

.tool-page h1 {
    color: var(--primary-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tool-description {
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

/* 上传区域样式 */
.upload-area {
    border: 2px dashed #ccc;
    border-radius: var(--border-radius);
    padding: 40px;
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 30px;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(33, 150, 243, 0.05);
}

.upload-area.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(33, 150, 243, 0.1);
}

.upload-content {
    pointer-events: none;
}

.upload-content i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.upload-content p {
    margin: 10px 0;
    color: #666;
}

.upload-tip {
    font-size: 0.9rem;
    color: #999 !important;
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* 转换选项样式 */
.convert-options {
    background: #f8f9fa;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.option-group {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

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

.option-group label {
    min-width: 100px;
    color: #666;
}

.option-group select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    min-width: 120px;
}

.option-group input[type="range"] {
    flex: 1;
    margin: 0 15px;
}

/* 预览区域样式 */
.preview-area {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.preview-item {
    background: white;
    padding: 10px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
}

.preview-item img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    border-radius: 4px;
    background: #f8f9fa;
}

.preview-item .file-info {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #666;
}

.preview-item .file-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 5px;
}

.preview-item .file-size {
    font-size: 0.8rem;
    color: #999;
}

.preview-item .remove-btn {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #ff4444;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.preview-item .download-btn {
    position: absolute;
    top: -8px;
    right: 24px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 按钮样式 */
.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.primary-button,
.secondary-button {
    padding: 12px 24px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.primary-button {
    background: var(--primary-color);
    color: white;
}

.primary-button:hover {
    background: var(--secondary-color);
}

.secondary-button {
    background: #f8f9fa;
    color: var(--text-color);
    border: 1px solid #ddd;
}

.secondary-button:hover {
    background: #e9ecef;
}

.primary-button:disabled,
.secondary-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 加载动画 */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading {
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}