.tool-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (min-width: 992px) {
    .tool-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.tool-left,
.tool-right{
    max-width: 518px;
}

/* 卡片 */
.card {
    background: var(--color-bg-container);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 100%;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

/* 文本框 */
.tool-textarea {
    width: 100%;
    min-height: 260px;
    border: 1px solid var(--color-border-normal);
    border-radius: 0.75rem;
    padding: 1rem;
    font-family: Consolas, Monaco, monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    background: #fff;
    box-sizing: border-box;
}
.tool-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* 参数项 */
.param-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}
.param-item label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
}
.param-item input,
.param-item select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border-normal);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    background: #fff;
}
.param-item input:focus,
.param-item select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* 按钮 */
.btn-primary,
.btn-secondary,
.btn-warning,
.btn-danger,
.btn-success {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: 0;
    color: #fff;
    padding: 0.6rem 1rem;
}

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

.btn-secondary {
    background: var(--color-info);
}
.btn-secondary:hover {
    background: var(--color-text-tertiary);
}

.btn-warning {
    background: var(--color-warning);
}
.btn-warning:hover {
    filter: brightness(1.1);
}

.btn-danger {
    background: var(--color-danger);
}
.btn-danger:hover {
    filter: brightness(1.1);
}

.btn-success {
    background: var(--color-success);
}
.btn-success:hover {
    filter: brightness(1.1);
}

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
}

/* 字段标签 */
.field-tag {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-radius: 0.3rem;
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    cursor: move;
}
.field-tag:hover {
    background: var(--color-bg-tertiary);
}
.field-tag .del {
    color: var(--color-danger);
    font-weight: bold;
    cursor: pointer;
}

/* 预览 */
.preview-box {
    border: 1px solid var(--color-border-normal);
    border-radius: 0.75rem;
    background: #fff;
    min-height: 360px;
    overflow: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}
th {
    background: var(--color-bg-secondary);
    padding: 0.6rem 0.8rem;
    text-align: left;
    border: 1px solid var(--color-border-light);
    font-weight: 500;
    color: var(--color-text-primary);
}
td {
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--color-border-light);
    color: var(--color-text-secondary);
}
tr:hover td {
    background: var(--color-bg-secondary);
}

/* 提示 */
.tip {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: 0.75rem;
    padding: 1rem;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
}
.tip p {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin: 0.3rem 0;
}
.tip i {
    color: var(--color-primary);
}

/* 工具类 */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.flex-col { flex-direction: column; }
.flex-1 { flex: 1; }
.gap-2 { gap: 0.5rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.w-full { width: 100%; }
.justify-between { justify: space-between; }
.items-center { align-items: center; }
.text-xs { font-size: 0.75rem; }
.text-gray-400 { color: var(--color-text-quaternary); }
.text-gray-500 { color: var(--color-text-secondary); }