.bottom-ad {
            position: fixed;
            bottom: -200px;
            /* مخفی در ابتدا */
            left: 0;
            width: 100%;
            background: #fff;
            padding: 15px;
            transition: bottom 0.5s ease;
            z-index: 9999;
            text-align: center;
        }

        .bottom-ad.show {
            bottom: 0;
        }

        .ad-content {
            display: flex;
            justify-content: center;
            gap: 30px;
        }

        .ad-content img {
            max-height: 60px;
        }

        .close-btn {
            position: absolute;
            top: 5px;
            right: 10px;
            border: none;
            background: none;
            font-size: 20px;
            cursor: pointer;
        }

        .ad-title {
            text-align: center;
            margin-bottom: 12px;
            direction: rtl;
        }

        .ad-title .line-1 {
            font-size: 16px;
            font-weight: bold;
            margin: 0;
        }

        .ad-title .line-2 {
            font-size: 14px;
            color: #555;
            margin: 4px 0 0;
        }