/* 计算器页面共用样式 */
.calculator-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-top: 30px;
    margin-bottom: 30px;
}

.calculator-description {
    background-color: var(--bg-color);
    border-left: 5px solid var(--primary-color);
    padding: 15px 20px;
    margin-bottom: 30px;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    color: var(--text-color);
}

/* 表单容器 */
.form-container {
    position: relative;
    overflow: hidden;
    background-color: var(--card-bg);
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.input-card {
    padding: 20px;
    transition: transform 0.3s ease;
    position: relative;
    width: 100%;
    box-sizing: border-box;
    opacity: 1;
    transform: translateX(0);
    pointer-events: all;
}

/* 输入项样式 */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-item {
    position: relative;
}

.input-item label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding-left: 20px;
}

/* 添加输入框前的图标 */
.input-item label::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    background-size: contain;
    background-repeat: no-repeat;
}

/* 身高输入框图标 */
.input-item:has(#height) label::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%231976d2'%3E%3Cpath d='M13 3c-4.97 0-9 4.03-9 9H1l3.89 3.89.07.14L9 12H6c0-3.87 3.13-7 7-7s7 3.13 7 7-3.13 7-7 7c-1.93 0-3.68-.79-4.94-2.06l-1.42 1.42C8.27 19.99 10.51 21 13 21c4.97 0 9-4.03 9-9s-4.03-9-9-9zm1 7v-2h-2v6h2v-2h2v-2h-2z'/%3E%3C/svg%3E");
}

/* 体重输入框图标 */
.input-item:has(#weight) label::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%231976d2'%3E%3Cpath d='M12 4c-4.42 0-8 3.58-8 8s3.58 8 8 8 8-3.58 8-8-3.58-8-8-8zm0 14c-3.31 0-6-2.69-6-6s2.69-6 6-6 6 2.69 6 6-2.69 6-6 6zm-1-5h2v-2h-2v2zm0-4h2V7h-2v2z'/%3E%3C/svg%3E");
}

input[type="text"],
input[type="number"] {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 16px;
    transition: all 0.3s;
    box-sizing: border-box;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

input[type="text"]:focus,
input[type="number"]:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.2);
    outline: none;
}

/* 结果部分 */
.result-section {
    background-color: var(--primary-light);
    padding: 15px;
    border-radius: 6px;
    margin-top: 5px;
}

.result-title {
    font-size: 14px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.result-content {
    display: flex;
    align-items: baseline;
    justify-content: center;
}

.result-value {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
}

.result-unit {
    font-size: 16px;
    color: var(--text-secondary);
    margin-left: 5px;
}

/* 计算按钮 */
.calculate-btn {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 2px 6px rgba(25, 118, 210, 0.4);
    margin: 20px 0;
    position: relative;
    overflow: hidden;
}

.calculate-btn::after {
    content: "";
    position: absolute;
    width: 24px;
    height: 24px;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-5.97 4.06L14.09 9l1.41 1.41L16.91 9l1.06 1.06-1.06 1.06-2.47 2.47-2.47-2.47-1.06-1.06L11.97 9l1.06-1.06 1.06 1.06zm-4.47 9.88l-1.39-1.39 1.42-1.42 1.39 1.39 1.39-1.39 1.42 1.42-1.39 1.39 1.39 1.39-1.42 1.42-1.39-1.39-1.39 1.39-1.42-1.42 1.39-1.39z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-size: contain;
}

.calculate-btn:hover {
    background-color: #1565c0;
    box-shadow: 0 4px 8px rgba(25, 118, 210, 0.5);
}

.calculate-btn:active {
    transform: translateY(1px);
    box-shadow: 0 2px 4px rgba(25, 118, 210, 0.4);
}

/* 计算器信息部分 */
.calculator-info {
    background-color: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-top: 30px;
}

.calculator-info h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.calculator-info p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--text-color);
}

.calculator-info ul,
.calculator-info ol {
    margin-bottom: 15px;
    margin-left: 20px;
    color: var(--text-color);
}

.calculator-info ul li,
.calculator-info ol li {
    margin-bottom: 8px;
    line-height: 1.6;
}

.calculator-info strong {
    color: var(--primary-color);
}

.calculator-info a {
    color: var(--primary-color);
    text-decoration: none;
}

.calculator-info a:hover {
    text-decoration: underline;
}

.calculator-info-light {
    background-color: var(--primary-light);
    border-radius: 10px;
}

.disclaimer {
    font-style: italic;
    color: #666;
    margin-top: 30px;
    font-size: 14px;
}

/* 表格样式 */
.bmi-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    color: var(--text-color);
}

.bmi-table th,
.bmi-table td {
    border: 1px solid var(--border-color);
    padding: 12px 15px;
    text-align: left;
}

.bmi-table thead th {
    background-color: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
}

.bmi-table tbody tr:nth-child(even) {
    background-color: var(--bg-color);
}

.bmi-table tbody tr:hover {
    background-color: var(--hover-bg-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .form-container {
        margin-bottom: 0px;
    }

    .calculator-container {
        padding: 15px;
        margin-top: 20px;
        margin-bottom: 20px;
    }
    
    .calculator-description {
        padding: 12px 15px;
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    
    .input-card {
        padding: 15px;
    }
    
    .input-group {
        gap: 15px;
    }
    
    .calculate-btn {
        font-size: 16px;
        padding: 12px 24px;
    }
    
    .calculator-info h3 {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }
    
    /* 表格响应式处理 */
    .bmi-table {
        font-size: 0.85rem;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    
    .bmi-table thead,
    .bmi-table tbody,
    .bmi-table th,
    .bmi-table td,
    .bmi-table tr {
        display: block;
        word-wrap: break-word;
    }
    
    .bmi-table thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }
    
    .bmi-table tr {
        border: 1px solid var(--border-color);
        margin-bottom: 10px;
        padding: 10px;
        border-radius: 8px;
        background-color: var(--card-bg);
    }
    
    .bmi-table td {
        border: none;
        position: relative;
        padding: 8px 0 8px 30%;
        text-align: left;
    }
    
    .bmi-table td:before {
        content: attr(data-label) ": ";
        position: absolute;
        left: 6px;
        width: 25%;
        padding-right: 10px;
        white-space: nowrap;
        font-weight: 600;
        color: var(--primary-color);
    }
    
    .disclaimer {
        font-size: 13px;
        margin-top: 20px;
    }
}

@media (max-width: 480px) {
    .form-container {
        margin-bottom: 0px;
    }

    .calculator-container {
        padding: 10px;
        margin-top: 15px;
        margin-bottom: 15px;
    }
    
    .calculator-description {
        padding: 10px 12px;
        font-size: 0.85rem;
        margin-bottom: 15px;
    }
    
    .input-card {
        padding: 12px;
    }
    
    .input-group {
        gap: 12px;
    }
    
    .input-item label {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    input[type="text"],
    input[type="number"] {
        font-size: 14px;
        padding: 10px 12px;
    }
    
    .calculate-btn {
        font-size: 14px;
        padding: 10px 20px;
    }
    
    .result-title {
        font-size: 14px;
    }
    
    .result-value {
        font-size: 0.9rem;
    }
    
    .calculator-info {
        padding: 15px;
        margin-top: 15px;
    }

    .calculator-info h3 {
        font-size: 1.2rem;
        margin-bottom: 12px;
    }

    .calculator-info p {
        font-size: 0.85rem;
        line-height: 1.5;
        margin-bottom: 12px;
    }
    
    .bmi-table {
        font-size: 0.8rem;
    }
    
    .bmi-table td {
        padding: 6px 0 6px 35%;
    }
    
    .bmi-table td:before {
        width: 30%;
        font-size: 0.75rem;
    }
    
    .disclaimer {
        font-size: 12px;
        margin-top: 15px;
    }
}