.tool-container {
    max-width: 980px;
    margin: 40px auto;
    padding: 30px;
    background: #fff;
}
.title-box {
    text-align: center;
    margin-bottom: 30px;
}
.title-box h2 {
    font-size: 22px;
    color: #222;
    margin: 0 0 8px;
}
.title-box p {
    color: #666;
    font-size: 14px;
    margin: 0;
}
.config-wrap {
    background: #f7f9fc;
    border-radius: 10px;
    padding: 22px;
    margin-bottom: 25px;
}
.config-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px 25px;
    margin-bottom: 16px;
}
.config-row:last-child{margin-bottom:0;}
.config-item {
    display: flex;
    align-items: center;
    gap: 8px;
}
.config-item label {
    font-size: 14px;
    color: #333;
    white-space: nowrap;
}
.config-item select, .config-item input {
    padding: 8px 12px;
    border: 1px solid #dcdfe6;
    border-radius: 6px;
    font-size: 14px;
}
.config-item input[type="checkbox"] {
    appearance: checkbox !important;
    -webkit-appearance: checkbox !important;
    width: 16px;
    height: 16px;
    margin: 0;
}
.num-btn-group{
    display:flex;gap:6px;
}
.num-btn-group span{
    padding:5px 10px;
    background:#e9edf5;
    border-radius:4px;
    font-size:13px;
    cursor:pointer;
}
.btn-group {
    text-align: center;
    margin-bottom: 25px;
}
.btn {
    padding: 10px 22px;
    border: none;
    border-radius: 7px;
    font-size: 14px;
    cursor: pointer;
    margin: 0 6px;
    transition: all 0.2s;
}
.btn-gen {background-color: #2d8cf0;color: #fff;}
.btn-gen:hover {background-color: #2379d9;}
.btn-copy {background-color: #67c23a;color: #fff;}
.btn-copy:hover {background-color: #56ad2e;}
.btn-code {background-color: #9368e9;color: #fff;}
.btn-code:hover {background-color: #8254d8;}
.btn-clear {background-color: #909399;color: #fff;}
.btn-clear:hover {background-color: #797c82;}
.result-box {width: 100%;}
.result-box textarea {
    width: 100%;
    min-height: 280px;
    padding: 15px;
    border: 1px solid #e5e7eb;
    border-radius: 9px;
    font-family: Consolas,monospace;
    font-size: 14px;
    line-height: 1.8;
    resize: vertical;
    background: #fafbfc;
}
.tips-text {
    margin-top: 15px;
    font-size: 13px;
    color: #666;
    line-height: 1.7;
}
.success-tip {
    color: #19943e;
    text-align: center;
    margin-top: 12px;
    height: 20px;
    line-height: 20px;
}