.tool-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

/* 预览网格样式 */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.preview-item {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-color);
    display: flex;
    flex-direction: column;
}

.preview-image {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 1rem;
}

.preview-image canvas {
    image-rendering: pixelated; /* 保持像素清晰 */
    object-fit: contain;
}

.preview-info {
    flex: 1;
    min-width: 0;
    padding: 12px;
    display: flex;
    flex-direction: column;
}

.preview-info .file-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-color);
    word-break: break-all;
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.remove-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: background-color 0.2s;
}

.remove-btn:hover {
    background: rgba(0, 0, 0, 0.7);
}

/* 设置面板样式 */
.settings-panel {
    background: var(--bg-color-50);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-color-10);
    position: sticky;
    top: 24px;
}

.settings-panel h3 {
    margin: 0 0 20px;
    font-size: 18px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 12px;
    color: var(--text-color);
    font-weight: 500;
}

/* 系统选择网格 */
.option-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.option-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.option-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.option-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.option-tab.active .iconify {
    color: white;
}

.option-tab.active:hover .iconify {
    color: white;
}

.option-tab .iconify {
    font-size: 1.2em;
    color: var(--text-color);
}

.option-tab:hover .iconify {
    color: var(--primary-color);
}

/* 尺寸选择 */
.size-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.size-option {
    position: relative;
    padding: 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.size-option:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.size-option.active {
    background: var(--primary-color-10);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.size-option input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    outline: none;
    cursor: pointer;
    position: relative;
    transition: all 0.2s;
    flex-shrink: 0;
}

.size-option:hover input[type="checkbox"]:not(:checked) {
    border-color: var(--primary-color);
}

.size-option input[type="checkbox"]:checked {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.size-option input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.size-option .size-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.size-option .size-value {
    font-size: 1rem;
    font-weight: 500;
    color: inherit;
}

.size-option .size-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.size-group {
    margin-bottom: 1.5rem;
}

.size-group-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: #666;
    margin-bottom: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eee;
}

/* 进度条样式 */
.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-color);
    border-radius: 2px;
    margin: 16px 0;
    overflow: hidden;
}

.progress {
    width: 0;
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

/* 按钮样式 */
.btn {
    width: 100%;
    margin-top: 16px;
}