.tool-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 25px;
    background: #fff;
}
.form-box {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}
.left-box,.right-box {
    flex: 1;
    min-width: 450px;
}
.box-title {
    font-size: 15px;
    color: #333;
    margin-bottom: 8px;
    font-weight: 500;
}
textarea {
    width: 100%;
    height: 420px;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    resize: none;
    font-size: 14px;
    line-height: 1.6;
    font-family: Consolas, "Courier New", monospace;
}
textarea:read-only {
    background-color: #fafafa;
}
.btn-group {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}
.btn {
    padding: 10px 22px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
}
.btn-convert {
    background-color: #409eff;
    color: #fff;
}
.btn-copy {
    background-color: #409eff;
    color: #fff;
}
.btn-clear {
    background-color: #f56c6c;
    color: #fff;
}
.tips-text {
    color: #666;
    font-size: 13px;
    line-height: 1.7;
}
.head-title {
    text-align:center;
    margin-bottom:25px;
}
.head-title h2 {
    font-size:22px;
    color:#333;
    margin:0 0 6px;
}
.head-title p {
    color:#666;
    font-size:14px;
    margin:0;
}