.dy_demo-button {
            background: #fff;
            color: #333;
            border: none;
            padding: 12px 24px;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .dy_demo-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
        }

        /* 弹窗遮罩层 */
        .dy_modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(5px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
            padding: 20px;
        }

        .dy_modal-overlay.dy_show {
            opacity: 1;
            visibility: visible;
        }

        /* 弹窗主体 */
        .dy_modal {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            transform: scale(0.8) translateY(30px);
            transition: transform 0.3s ease;
            width: 100%;
            max-width: 480px;
            max-height: 90vh;
            overflow: hidden;
            position: relative;
        }

        .dy_modal-overlay.dy_show .dy_modal {
            transform: scale(1) translateY(0);
        }

        /* 弹窗头部 */
        .dy_modal-header {
            padding: 20px 24px;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: #f8f9fa;
        }

        .dy_modal-title {
            font-size: 18px;
            font-weight: 600;
            color: #333;
            margin: 0;
        }

        /* 关闭按钮 */
        .dy_modal-close {
            background: none;
            border: none;
            font-size: 24px;
            color: #666;
            cursor: pointer;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background-color 0.2s, color 0.2s;
        }

        .dy_modal-close:hover {
            background: #e9ecef;
            color: #333;
        }

        /* 弹窗内容区域 */
        .dy_modal-body {
            padding: 24px;
            line-height: 1.6;
            color: #555;
            max-height: calc(90vh - 140px);
            overflow-y: auto;
        }

        /* 弹窗底部 */
        .dy_modal-footer {
            padding: 20px 24px;
            border-top: 1px solid #eee;
            display: flex;
            gap: 12px;
            justify-content: flex-end;
            background: #f8f9fa;
        }

        .dy_modal-button {
            padding: 10px 20px;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            cursor: pointer;
            transition: all 0.2s;
        }

        .dy_modal-button.dy_primary {
            background: #00305E;
            color: white;
        }

        .dy_modal-button.dy_primary:hover {
            background: #012343;
        }

        .dy_modal-button.dy_secondary {
            background: #6c757d;
            color: white;
        }

        .dy_modal-button.dy_secondary:hover {
            background: #545b62;
        }

        /* 移动端适配 */
        @media (max-width: 768px) {
            .dy_modal-overlay {
                padding: 10px;
            }

            .dy_modal {
                max-width: 100%;
                margin: 0;
                border-radius: 8px;
                max-height: 95vh;
            }

            .dy_modal-header {
                padding: 16px 20px;
            }

            .dy_modal-title {
                font-size: 16px;
            }

            .dy_modal-body {
                padding: 20px;
                max-height: calc(95vh - 120px);
            }

            .dy_modal-footer {
                padding: 16px 20px;
                flex-direction: column-reverse;
            }

            .dy_modal-button {
                width: 100%;
                padding: 12px;
            }
        }

        /* 超小屏幕适配 */
        @media (max-width: 480px) {
            .dy_modal-overlay {
                padding: 5px;
            }

            .dy_modal {
                border-radius: 6px;
            }

            .dy_modal-header {
                padding: 12px 16px;
            }

            .dy_modal-body {
                padding: 16px;
            }

            .dy_modal-footer {
                padding: 12px 16px;
            }
        }

        /* 动画增强 */
        @keyframes dy_modalFadeIn {
            from {
                opacity: 0;
                transform: scale(0.8) translateY(30px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .dy_modal-overlay.dy_show .dy_modal {
            animation: dy_modalFadeIn 0.3s ease-out;
        }