/* 全局样式 */




/* 主内容区域样式 */
.main-content {
    max-width: 1920px;
    margin: 0 auto;
    padding: 50px 261px;
}

/* 选项卡样式 */
.tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
}

.tab-button {
    width: 220px;
    height: 70px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.tab-button.active {
    background-color: #007BC7;
    color: white;
    box-shadow: 0px 15px 15px 0px rgba(0, 123, 199, 0.1);
}

.tab-button.inactive {
    background-color: #F6F7F9;
    color: #333333;
}

.tab-button.inactive:hover {
    background-color: #e0e0e0;
}

/* 计算器卡片样式 */
.calculator-card {
    background-color: white;
    border-radius: 10px;
    box-shadow: 0px 5px 30px 0px rgba(0, 0, 0, 0.1);
    padding: 50px;
}

/* 公式样式 */
.formula {
    text-align: left;
    margin-bottom: 30px;
}

.formula p {
    font-size: 20px;
    font-weight: 500;
    color: #333333;
}

/* 说明文字样式 */
.instructions {
    font-size: 16px;
    color: #333333;
    line-height: 1.875;
    margin-bottom: 50px;
}

/* 步骤说明样式 */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.step-item {
    background-color: #F6F7F9;
    border-radius: 10px;
    padding: 23px;
    display: flex;
    gap: 15px;
}

.step-number {
    font-family: 'Outfit', sans-serif;
    font-size: 50px;
    font-weight: 900;
    color: #E6E6E6;
}

.step-text {
    font-size: 16px;
    color: #333333;
    margin-top: 7px;
}

/* 输入表单区域样式 */
.input-form {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

/* 实验需要药物计算器输入表单样式 */
.drug-calculator-form {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.input-group {
    margin-bottom: 20px;
}

.drug-calculator-form .input-group {
    flex: 1;
    min-width: 200px;
    margin-bottom: 0;
}

.input-group label {
    display: block;
    font-size: 16px;
    color: #333333;
    margin-bottom: 8px;
}

.input-with-unit {
    display: flex;
    gap: 10px;
}

.input-field {
    flex: 1;
    position: relative;
}

.input-field input {
    width: 100%;
    height: 50px;
    padding: 0 18px;
    border: 1px solid #D9D9D9;
    border-radius: 10px;
    font-size: 16px;
    color: #333333;
    transition: all 0.3s ease;
}

.input-field input::placeholder {
    color: #999999;
}

.input-field input:focus {
    outline: none;
    border-color: #007BC7;
}

/* 移除number类型输入框的上下箭头 */
.input-field input[type="number"]::-webkit-inner-spin-button,
.input-field input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.input-field input[type="number"] {
    -moz-appearance: textfield;
}

.unit-selector {
    position: relative;
    width: 140px;
}

.unit-selector select {
    width: 100%;
    height: 50px;
    padding: 0 18px;
    border: 1px solid #D9D9D9;
    border-radius: 10px;
    font-size: 16px;
    color: #333333;
    background-color: white;
    appearance: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.unit-selector select:focus {
    outline: none;
    border-color: #007BC7;
    box-shadow: 0 0 0 2px rgba(0, 123, 199, 0.2);
    transition: all 0.2s ease;
}

.unit-selector select:hover {
    border-color: #007BC7;
    transition: all 0.2s ease;
}

.select-arrow {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    opacity: 0.5;
}

/* 按钮样式 */
.buttons {
    display: flex;
    gap: 12px;
    margin-top: 40px;
}

.button {
    width: 140px;
    height: 50px;
    background-color: #007BC7;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button:hover {
    background-color: #0068a8;
}

/* 底部样式 */
footer {
    width: 100%;
    background-color: #F5F7F9;
    margin-top: 50px;
    padding: 30px 0;
}

.footer-container {
    max-width: 1920px;
    margin: 0 auto;
    padding: 0 261px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text {
    font-size: 14px;
    color: #333333;
}