.wc-tool {
    display: flex;
    gap: 24px;
    align-items: stretch;
    width: 100%;
    max-width: 1200px;
    margin: auto;
    padding: 24px 32px;
}

/* 左侧上传面板 */
.wc-upload-panel {
    flex: 0 0 42%;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
}

.wc-dropzone {
    flex: 1;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px;
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    cursor: pointer;
    transition: var(--transition);
    outline: none;
}

.wc-dropzone:hover,
.wc-dropzone:focus-visible {
    border-color: var(--accent);
}

.wc-dropzone.is-dragover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.wc-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    pointer-events: none;
}

.wc-empty-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: var(--accent-light);
    color: var(--accent);
    margin-bottom: 8px;
}

.wc-icon-lg {
    width: 36px;
    height: 36px;
}

.wc-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.wc-empty-hint {
    font-size: 13px;
    color: var(--text-tertiary);
    margin: 0;
    line-height: 1.6;
}

/* 预览态 */
.wc-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    width: 100%;
    min-height: 0;
}

.wc-preview[hidden] {
    display: none;
}

.wc-preview-img-wrap {
    flex: 1;
    min-height: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: repeating-conic-gradient(var(--bg-secondary) 0% 25%, var(--bg-input) 0% 50%) 50% / 16px 16px;
    overflow: hidden;
}

.wc-preview-img-wrap img {
    max-width: 100%;
    max-height: 46vh;
    object-fit: contain;
    display: block;
}

.wc-preview-meta {
    text-align: center;
}

.wc-preview-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 4px;
    word-break: break-all;
}

.wc-preview-info {
    font-size: 12px;
    color: var(--text-tertiary);
    margin: 0;
}

.wc-reselect-hint {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* 右侧格式 Bento 网格 */
.wc-formats {
    flex: 1;
    min-width: 0;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
    align-content: start;
}

.wc-format-btn {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    padding: 20px 22px;
    text-align: left;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.wc-format-half {
    grid-column: span 3;
}

.wc-format-wide {
    grid-column: span 3;
}

.wc-format-btn:not(:disabled):hover {
    transform: translateY(-3px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-md);
}

.wc-format-btn:not(:disabled):active {
    transform: scale(0.98);
}

.wc-format-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.wc-format-label {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.wc-format-hero .wc-format-label {
    font-size: 24px;
}

.wc-format-desc {
    font-size: 12px;
    color: var(--text-tertiary);
}

.wc-format-status {
    font-size: 12px;
    font-weight: 500;
    color: var(--accent);
    min-height: 1em;
}

.wc-format-status.is-error {
    color: var(--color-danger);
}

/* 响应式 */
@media (max-width: 1024px) {
    .wc-tool {
        flex-direction: column;
        flex: 1;
        min-height: 0;
        margin: 0 auto;
        overflow-y: auto;
    }

    .wc-upload-panel {
        flex: none;
    }

    .wc-dropzone {
        min-height: 260px;
    }

    .wc-format-btn,
    .wc-format-wide {
        grid-column: span 3;
    }
}

@media (max-width: 480px) {
    .wc-tool {
        padding: 16px;
        gap: 16px;
    }

    .wc-format-btn,
    .wc-format-wide,
    .wc-format-hero {
        grid-column: span 6;
    }
}