/* 基础样式 */
body {
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    margin: 0;
    padding: 10px;
    background-color: #f5f5f5;
}

/* 容器补充样式 */
.container {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 15px 20px; /* 内边距 */
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* 优化后的h1样式 */
h1 {
    font-size: clamp(10px, 3vw, 24px);
    color: #333;
    margin-bottom: 20px;
    text-align: center;
    white-space: nowrap;
    padding: 0 10px; /* 防止贴边溢出 */
    box-sizing: border-box;
}

/* 修改后的h2样式 */
h2 {
    font-size: clamp(12px, 4vw, 16px);
    color: #666;
    text-align: center;
    margin-top: 30px;
    white-space: nowrap;
}

/* 表单样式 */
.form-group {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 12px;
}

.form-group label {
    flex: 0 0 60px;
    text-align: right;
    margin-right: 0.5rem;
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.form-group select {
    /* 原有样式保持不变 */
    flex: 1 0 auto;
    min-width: 120px;
    padding: 8px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-sizing: border-box;
    background: #fff;
    
    /* 新增标准属性 */
    -webkit-appearance: none;
    appearance: none;
}

input[type="button"]{
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
    border: none;
    padding: 15px;
    transition: opacity 0.3s;
    width: 100%;
    border-radius: 8px;
    font-size: 16px;
}

input[type="submit"] {
    background-color: #4CAF50;
    color: white;
    font-weight: bold;
    border: none;
    padding: 15px;
    transition: opacity 0.3s;
    width: 100%;
    border-radius: 8px;
    font-size: 16px;
}

input[type="submit"]:active {
    opacity: 0.8;
}

/* 结果样式 */
.result {
    margin-top: 25px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    line-height: 1.8;
}

.result p {
    margin: 10px 0;
    color: #444;
}

.image-element {
    width: 100%;
    max-width: 400px; /* 控制最大显示宽度 */
    margin: 0 auto;
    padding: 15px;
    text-align: center;
}

.image-element img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .image-element {
        max-width: 90%;
    }
}

.error {
    color: #dc3545;
    padding: 15px;
    text-align: center;
}

/* 移动端适配 */
@media (max-width: 480px) {
    body {
        font-size: 15px;
        padding: 5px;
    }
    
    .container {
        padding: 15px;
    }

    h1 {
        font-size: 22px;
    }
}

/* 触屏设备优化 */
@media (hover: none) and (pointer: coarse) {
    .form-group select {
        padding: 12px;
        font-size: 16px;
    }
}