/* —————————— 左侧：课程详情 —————————— */
        .left-box {
            flex: 1;
            min-width: 300px;
            background: var(--white);
            border-radius: 12px;
            padding: 10px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.06);
        }

        /* 课程标题 */
        .course-title {
            font-size: 26px;
            color: var(--tsinghua-purple);
            margin-bottom: 20px;
            font-weight: bold;
            line-height: 1.4;
        }

        /* 信息卡片 */
        .info-bar {
            background: #f8f2ff;
            border-left: 5px solid var(--tsinghua-purple);
            padding: 20px 25px;
            border-radius: 8px;
            margin-bottom: 30px;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 15px;
            color: #333;
        }
        .info-bar strong {
            color: var(--tsinghua-purple);
        }

        /* 模块标题 */
        .module-title {
            font-size: 20px;
            color: var(--tsinghua-purple);
            margin: 40px 0 15px 0;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--tsinghua-purple);
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .module-title::before {
            content: "";
            width: 5px;
            height: 20px;
            background: var(--tsinghua-purple);
            display: inline-block;
        }

        /* 正文 */
        .content {
            font-size: 16px;
            line-height: 1.9;
            color: #444;
            margin-bottom: 15px;
        }
/* 手机端图片自动缩放 核心代码 */
.content img {
    max-width: 100% !important;
    width: auto !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
}


        /* 课程模块 */
        .module-list {
            padding-left: 20px;
            margin: 15px 0;
        }
        .module-list li {
            list-style: none;
            padding: 10px 0;
            font-size: 16px;
            line-height: 1.8;
            position: relative;
            padding-left: 20px;
        }
        .module-list li::before {
            content: "■";
            color: var(--tsinghua-purple);
            position: absolute;
            left: 0;
            top: 10px;
        }

        /* 咨询报名按钮 */
        .btn-box {
            margin-top: 40px;
            text-align: center;
        }
        .btn-consult {
            display: inline-block;
            padding: 14px 40px;
            background: var(--tsinghua-purple);
            color: #fff;
            font-size: 16px;
            border-radius: 8px;
            text-decoration: none;
            transition: 0.3s;
            font-weight: bold;
        }
        .btn-consult:hover {
            background: var(--tsinghua-dark);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(110,0,153,0.2);
        }		
		 /* ========== 右侧课堂风采：4张图 一行2张 ========== */
        .right-photo-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 8px;
            margin-top: 10px;
        }
        .right-photo-item {
            border-radius: 6px;
            overflow: hidden;
        }
        .right-photo-item img {
            width: 100%;
            height: 85px;
            object-fit: cover;
            display: block;
        }
        .right-photo-item p {
            text-align: center;
            font-size: 12px;
            color: #666;
            padding: 5px 0 0 0;
        }