/* 活動詳情容器 */
    .activity-detail {
        background: #fff;
        border-radius: 12px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        overflow: hidden;
        margin-bottom: 30px;
    }

    /* 活動標題區 */
    .activity-header {
       background: linear-gradient(135deg, #37528b 0%, #184489 100%);
        color: white;
        padding: 40px 30px;
        text-align: center;
        position: relative;
    }

    .activity-header::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, #ff7b44 0%, #f99f78 100%);
    }

    .activity-title {
        color: #fff;
        font-size: 2rem;
        font-weight: 700;
        margin: 0 0 20px 0;
        line-height: 1.3;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    .activity-meta {
        display: flex;
        justify-content: center;
        gap: 30px;
        margin-top: 20px;
        opacity: 0.95;
    }

    .meta-item {
        display: flex;
        align-items: center;
        font-size: .85rem;
        font-weight: 500;
    }

    .meta-item::before {
        margin-right: 8px;
        font-size: 16px;
    }

    .meta-date::before {
        content: '🗓️';
    }

    .meta-location::before {
        content: '📍';
    }

    .meta-organizer::before {
        content: '🏢';
    }

    /* 活動內容區 */
    .activity-content {
        padding: 40px;
    }

    /* 主要內容卡片 */
    .content-card {
        background: #fff;
        margin-bottom: 30px;
        border-radius: 10px;
        overflow: hidden;
        border: 1px solid #f1f3f4;
    }

    .content-card-header {
        background: #f8f9fa;
        padding: 10px 20px;
        border-bottom: 1px solid #e9ecef;
        position: relative;
    }

    .content-card-header::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 4px;
        background: #ff7b44;
    }

    .content-card-title {
        font-size: 1rem;
        font-weight: 600;
        color: #2c3e50;
        margin: 0;
        display: flex;
        align-items: center;
    }

    .content-card-title::before {
        margin-right: 10px;
        font-size: 18px;
    }

    .content-card-body {
        padding: 25px;
    }

    /* 資訊項目樣式 */
    .info-row {
        display: flex;
        margin-bottom: 10px;
        /* align-items: flex-start; */
         align-items: center;
    }

    .info-row:last-child {
        margin-bottom: 0;
    }

    .info-label {
        min-width: 180px;
        font-weight: 600;
        color: #5a6c7d;
        font-size: .9rem;
        padding-top: 2px;
    }

    .info-value {
        flex: 1;
        color: #2c3e50;
        font-size: .9rem;
        line-height: 1rem;
    }

    .info-value a {
        color: #ff7b44;
        text-decoration: none;
        word-break: break-all;
    }

    .info-value a:hover {
        text-decoration: underline;
    }

    /* 特殊內容樣式 */
    .content-text {
        color: #2c3e50;
        line-height: 1.8;
        font-size: 15px;
    }

    .content-text p {
        margin-bottom: 15px;
    }

    .download-link {
        display: inline-flex;
        align-items: center;
        padding: 10px 20px;
        background: #f8f9fa;
        color: #ff7b44;
        text-decoration: none;
        border-radius: 25px;
        font-weight: 500;
        border: 1px solid #e9ecef;
        transition: all 0.3s ease;
    }

    .download-link:hover {
        background: #ff7b44;
        color: white;
        text-decoration: none;
        transform: translateY(-1px);
        box-shadow: 0 4px 8px rgba(255, 123, 68, 0.3);
    }

    .download-link::before {
        content: '📎';
        margin-right: 8px;
    }

    /* 活動圖片 */
    .activity-images {
        text-align: center;
        margin: 20px 0;
    }

    .activity-images img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        margin: 10px;
    }

    /* 響應式設計 */
    @media (max-width: 768px) {
        .activity-title {
            font-size: 1.8rem;
        }

        .activity-header {
            padding: 30px 20px;
        }

        .activity-meta {
            flex-direction: column;
            align-items: center;
            gap: 15px;
        }

        .activity-content {
            padding: 25px 20px;
        }

        .content-card-header,
        .content-card-body {
            padding: 20px;
        }

        .info-row {
            flex-direction: column;
            gap: 5px;
        }

        .info-label {
            min-width: auto;
            font-size: 13px;
            color: #7f8c8d;
        }
    }

    /* 底部按鈕區 */
    .bottom-actions {
        text-align: center;
        padding: 30px 0;
        border-top: 1px solid #f1f3f4;
        background: #fafbfc;
    }

    .btn-back-large {
        display: inline-flex;
        align-items: center;
        padding: 12px 30px;
        background: #ff7b44;
        color: white;
        text-decoration: none;
        border-radius: 25px;
        font-weight: 600;
        font-size: 15px;
        transition: all 0.3s ease;
        box-shadow: 0 4px 12px rgba(255, 123, 68, 0.3);
    }

    .btn-back-large:hover {
        background: #e67e22;
        color: white;
        text-decoration: none;
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(255, 123, 68, 0.4);
    }

    .btn-back-large::before {
        content: '←';
        margin-right: 8px;
        font-size: 16px;
    }