/* --- 基础重置与变量 --- */
        :root {
            /* 定义根字体大小，便于移动端适配 */
            font-size: 16px;
            --primary-color: #76c893; /* 主色调：图片中的绿色 */
            --primary-dark: #5aa576;
            --accent-color: #ff6b8b;  /* 强调色：图片中的粉色 */
            --border-radius: 10px;
            --transition: all 0.3s ease;
        }

        /* 移动端适配：当屏幕宽度小于 480px (典型手机) 时，缩小字体 */
        @media (max-width: 480px) {
            :root {
                font-size: 14px;
            }
        }

        body {
            margin: 0;
            padding: 0;
            font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
            background-color: #f4f4f4;
            color: #333;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            padding: 5px;
            box-sizing: border-box;
        }

        /* --- 容器样式 --- */
        .app-container {
            width: 100%;
            min-height: 100vh;
            max-width: 500px; /* PC端最大宽度 */
            background: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
            text-align: center;
        }

        /* --- 顶部 Logo --- */
        .header-banner {
            background-color: #6c757d; /* 顶部灰色条 */
            padding: 20px 0;
        }

        .logo-text {
            font-size: 2.5rem;
            font-weight: bold;
            color: #fff;
            letter-spacing: 10px;
            margin: 0;
        }

        /* 绿色横幅容器 */
        .green-banner {
            background-color: var(--primary-color);
            height: 60px;
            width: 100%;
            display: flex;
            justify-content: center;
            align-items: center; /* 垂直居中 */
            position: relative;
        }

        /* 横幅文字 */
        .banner-text {
            color: white;
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-shadow: 0 1px 2px rgba(0,0,0,0.2); /* 增强可读性 */
        }

        /* --- 表单区域 --- */
        .form-section {
            padding: 5px 20px;
            text-align: left;
        }

        .instruction {
            text-align: center;
            margin-bottom: 20px;
            color: #555;
            font-size: 1.2rem;
        }

        /* 表单项通用样式 */
        .form-item {
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            flex-wrap: wrap; /* 允许在移动端换行 */
        }

        .form-item label {
            width: 80px;
            font-size: 1rem;
            font-weight: 600;
            margin-right: 15px;
            text-align: right;
        }

        /* 输入框样式 */
        input[type="text"] {
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        input[type="text"]:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 5px rgba(118, 200, 147, 0.3);
        }


		/* 在原有 CSS 中添加以下规则 */
	    input[type="date"] {
            /* 继承文本框的所有样式 */
            flex: 1;
            padding: 12px 15px;
            border: 2px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
            background-color: white;
            color: #333;
        }

        input[type="date"]:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 5px rgba(118, 200, 147, 0.3);
        }

        /* 隐藏某些浏览器的默认箭头/日历图标（可选） */
        input[type="date"]::-webkit-calendar-picker-indicator {
            /* 如果你想完全自定义图标，可以在这里处理 */
            /* filter: invert(50%); */
        }


        /* --- 选项区域 (单选框) --- */
        .options-group {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 10px;
            margin-left: 95px; /* 对齐输入框左侧 */
        }

        .option-item {
            display: flex;
            align-items: center;
            cursor: pointer;
        }
        
        

        .option-radio {
            appearance: none;
            -webkit-appearance: none;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 2px solid #ccc;
            margin-right: 8px;
            outline: none;
            transition: background 0.2s, border-color 0.2s;
        }

        .option-radio:checked {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
        }

        /* 伪元素：模拟中间的实心圆点 */
        .option-radio:checked::after {
            content: '';
            display: block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: white;
            margin: 3px;
        }

        .option-label {
            font-size: 0.95rem;
            color: #555;
        }

        /* --- 按钮区域 --- */
        .button-group {
            text-align: center;
            margin-top: 25px;
        }

        .btn {
            padding: 12px 40px;
            border: none;
            border-radius: var(--border-radius);
            font-size: 1.1rem;
            font-weight: bold;
            color: #fff;
            cursor: pointer;
            transition: var(--transition);
            margin: 10px;
        }

        .btn-primary {
            background-color: var(--primary-color);
            box-shadow: 0 4px 8px rgba(118, 200, 147, 0.4);
        }

        .btn-primary:hover {
            background-color: var(--primary-dark);
        }

        /* --- 辅助功能区域 --- */
        .auxiliary-section {
            background-color: #f9f9f9;
            padding: 25px;
            border-top: 1px solid #eee;
        }

        .section-title {
            font-size: 1.1rem;
            font-weight: bold;
            margin-bottom: 15px;
            color: #444;
        }

        .aux-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .btn-aux {
            background-color: var(--primary-color);
            padding: 10px 25px;
            font-size: 0.95rem;
        }

        /* --- 移动端优化：小屏幕下标签换行 --- */
        @media (max-width: 500px) {
           .app-container {
                width: 100%;
                max-width: 500px; /* PC端最大宽度 */
                background: #fff;
                border-radius: 8px;
                overflow: hidden;
                box-shadow: 0 4px 12px rgba(0,0,0,0.05);
                text-align: center;
            }
            
            
            .form-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 5px;
                padding-right: 30px;
            }
            .options-group {
                width:90%; 
                display: flex;
                gap: 5px;
                margin-top: 10px;
                flex-wrap: wrap;
                margin-left: 15px;
            }
            
            
            
           .option-radio {
                appearance: none;
                -webkit-appearance: none;
                width: 20px;
                height: 20px;
                display: block;
                border-radius: 50%;
                border: 2px solid #ccc;
                margin-right: 8px;
                outline: none;
                transition: background 0.2s, border-color 0.2s;
            }

            .option-radio:checked {
                background-color: var(--accent-color);
                border-color: var(--accent-color);
            }

            /* 伪元素：模拟中间的实心圆点 */
            .option-radio:checked::after {
                content: '';
                display: block;
                width: 10px;
                height: 10px;
                border-radius: 50%;
                background-color: white;
                margin: 3px;
            }
           
           
            .option-item {
                width:80px;
                display: flex;
                align-items: left;
                cursor: pointer;
            }
           
           
           
           
            .option-label {
                width: 80px;
                font-size: 0.95rem;
                color: #555;
            }
           
           
           
            .form-item label {
                width: 100%;
                text-align: left;
                margin-bottom: 8px;
                margin-right: 0;
            }
            
            .options-group label {
                width: 120px;
                text-align: left;
                margin-bottom: 8px;
                margin-right: 0;
            }
            
            
            input[type="text"] { 
                width: 100%; 
                border: 2px solid #ddd;
                border-radius: var(--border-radius);
                font-size: 1rem;
                outline: none;
                transition: var(--transition);
            }
            

            

            input[type="text"]:focus {
                border-color: var(--primary-color);
                box-shadow: 0 0 5px rgba(118, 200, 147, 0.3);
            }
            input[type="date"] { 
                width: 100%; 
                border: 2px solid #ddd;
                border-radius: var(--border-radius);
                font-size: 1rem;
                outline: none;
                transition: var(--transition);
            }
            input[type="date"]:focus {
                border-color: var(--primary-color);
                box-shadow: 0 0 5px rgba(118, 200, 147, 0.3);
            }
           

            .btn {
                width: 100%;
                max-width: 300px;
            }
        }