.tool-container {
    max-width: 920px;
    margin: 40px auto;
    padding: 0 20px;
    box-sizing: border-box;
}
.tool-title {
    font-size: 30px;
    font-weight: 700;
    color: #1d2129;
    text-align: left;
    margin: 0 0 10px 0;
}
.tool-desc {
    font-size: 15px;
    color: #86909c;
    margin: 0 0 35px 0;
    line-height: 1.6;
}
.form-box {
    background: #ffffff;
    border-radius: 16px;
    padding: 35px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 25px;
}
.form-row {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
    gap: 15px;
}
.form-row:last-of-type {
    margin-bottom: 0;
}
.form-label {
    width: 105px;
    font-size: 15px;
    color: #333;
    font-weight: 500;
    flex-shrink: 0;
}
.form-select {
    height: 42px;
    padding: 0 15px;
    border: 1px solid #e5e6eb;
    border-radius: 8px;
    font-size: 14px;
    color: #333;
    outline: none;
    min-width: 170px;
    background-color: #fff;
    transition: border-color 0.25s;
}
.form-select:focus {
    border-color: #2377ed;
}
.form-input {
    height: 42px;
    padding: 0 15px;
    border: 1px solid #e5e6eb;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    width: 120px;
    transition: border-color 0.25s;
}
.form-input:focus {
    border-color: #2377ed;
}
.tip-text {
    font-size: 13px;
    color: #9499a0;
}

/* 单选样式 */
.radio-group {
    display: flex;
    align-items: center;
    gap: 35px;
}
.radio-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 15px;
    color: #333;
    user-select: none;
}
.radio-item input {
    display: none;
}
.radio-circle {
    width: 18px;
    height: 18px;
    border: 2px solid #dcdfe6;
    border-radius: 50%;
    position: relative;
    margin-right: 8px;
    transition: all 0.25s ease;
}
.radio-circle::after {
    content: '';
    width: 10px;
    height: 10px;
    background-color: #fff;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: all 0.25s ease;
}
.radio-item input:checked + .radio-circle {
    border-color: #2377ed;
    background-color: #2377ed;
}
.radio-item input:checked + .radio-circle::after {
    transform: translate(-50%, -50%) scale(1);
}

/* 按钮 */
.btn-wrap {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
}
.common-btn {
    height: 42px;
    padding: 0 22px;
    border-radius: 8px;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: all 0.25s;
}
.btn-primary {
    background-color: #2377ed;
    color: #fff;
}
.btn-primary:hover {
    background-color: #1966d1;
}
.btn-default {
    background-color: #f2f3f5;
    color: #333;
}
.btn-default:hover {
    background-color: #e5e6eb;
}

.result-card {
    background: #fff;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
}
.result-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 0 0 15px 0;
}
.result-textarea {
    width: 100%;
    min-height: 320px;
    border: 1px solid #e5e6eb;
    border-radius: 8px;
    padding: 15px;
    font-size: 14px;
    line-height: 1.8;
    resize: vertical;
    outline: none;
    box-sizing: border-box;
}