/* 基础容器样式 - 强化边框和阴影 */
        .vr-roi-calc-container {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.15);
            border: 1px solid #e2e8f0;
            font-family: 'Arial', sans-serif;
            box-sizing: border-box;
        }

        /* 标题样式 */
        .vr-roi-calc-title {
            color: #2d3748;
            margin-bottom: 2rem;
            text-align: center;
            font-size: 1.8rem;
            font-weight: 600;
            margin-top: 0;
            line-height: 1.2;
        }

        /* 输入组样式 */
        .vr-roi-calc-input-group {
            margin-bottom: 1.5rem;
        }

        /* 参数标签字体 */
        .vr-roi-calc-label {
            display: block;
            margin-bottom: 0.5rem;
            color: #4a5568;
            font-weight: 600;
            font-size: 16px;
            line-height: 1.4;
        }

        /* 输入框样式 */
        .vr-roi-calc-input {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1.5px solid #cbd5e1;
            border-radius: 6px;
            font-size: 16px;
            color: #2d3748;
            font-family: 'Arial', sans-serif;
            box-sizing: border-box;
            transition: border-color 0.3s;
        }

        .vr-roi-calc-input:focus {
            outline: none;
            border-color: #0064E0;
            box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
        }

        /* 选择框样式 */
        .vr-roi-calc-select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1.5px solid #cbd5e1;
            border-radius: 6px;
            font-size: 16px;
            color: #2d3748;
            font-family: 'Arial', sans-serif;
            box-sizing: border-box;
            transition: border-color 0.3s;
        }

        /* 按钮样式 */
        .vr-roi-calc-btn {
            width: 100%;
            padding: 1rem;
            background-color: #0064E0;
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s;
            margin-bottom: 2rem;
            font-family: 'Arial', sans-serif;
            box-sizing: border-box;
            border: 1px solid #3182ce;
        }

        .vr-roi-calc-btn:hover {
            background-color: #3182ce;
        }

        /* 结果区域样式 */
        .vr-roi-calc-result-section {
            display: none;
            padding: 1.5rem;
            background-color: #f0f8fb;
            border-radius: 8px;
            margin-top: 1rem;
            border: 1px solid #bee3f8;
        }

        .vr-roi-calc-result-item {
            margin-bottom: 1rem;
            font-size: 16px;
            line-height: 1.5;
        }

        .vr-roi-calc-result-label {
            color: #2d3748;
            font-weight: 600;
        }

        .vr-roi-calc-result-value {
            color: #0064E0;
            font-weight: 700;
        }

        .vr-roi-calc-note {
            margin-top: 1.5rem;
            font-size: 14px;
            color: #718096;
            line-height: 1.5;
        }

        /* 移动端适配 */
        @media (max-width: 600px) {
            .vr-roi-calc-container {
                padding: 1.5rem;
                margin: 0 1rem;
            }
            .vr-roi-calc-title {
                font-size: 1.2rem;
            }
            .vr-roi-calc-label {
                font-size: 14px;
            }
            .vr-roi-calc-input, .vr-roi-calc-select {
                font-size: 14px;
                padding: 0.7rem 0.9rem;
            }
            .vr-roi-calc-btn {
                font-size: 14px;
                padding: 0.9rem;
            }
            .vr-roi-calc-result-item {
                font-size: 14px;
            }
        }