.guide_container {
        max-width: 900px;
        margin: 0 auto;
        padding: 40px 20px;
    }

    .guide_title {
        font-size: 42px;
        font-weight: 800;
        color: #2c3e50;
        text-align: center;
        margin-bottom: 40px;
        position: relative;
        padding-top: 40px;
        padding-bottom: 20px;
    }

    .guide_title:after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
        height: 4px;
        background: linear-gradient(to right, #3498db, #2980b9);
        border-radius: 2px;
    }

    .faq_intro {
        text-align: center;
        margin-bottom: 60px;
    }

    .faq_intro p {
        font-size: 20px;
        line-height: 1.8;
        color: #444;
        margin-bottom: 30px;
    }

    .faq_categories {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-bottom: 40px;
    }

    .category_btn {
        padding: 12px 24px;
        border: none;
        border-radius: 30px;
        background: #f0f2f5;
        color: #666;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
    }

    .category_btn.active {
        background: #3498db;
        color: white;
        box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
    }

    .category_header {
        margin-bottom: 30px;
        padding-bottom: 20px;
        border-bottom: 2px solid #eee;
    }

    .category_header h2 {
        font-size: 28px;
        color: #2c3e50;
        margin-bottom: 10px;
        font-weight: 700;
    }

    .category_desc {
        color: #666;
        font-size: 16px;
    }

    .faq_category {
        display: none;
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .faq_category.active {
        display: block;
    }

    .faq_item {
        background: #fff;
        border-radius: 16px;
        margin-bottom: 20px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
    }

    .faq_item:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    }

    .faq_question {
        padding: 25px 30px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        cursor: pointer;
    }

    .question_content {
        display: flex;
        align-items: center;
        gap: 20px;
    }

    .question_content i {
        font-size: 24px;
        color: #3498db;
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(52, 152, 219, 0.1);
        border-radius: 12px;
    }

    .faq_question h3 {
        font-size: 18px;
        font-weight: 600;
        color: #2c3e50;
        margin: 0;
        line-height: 1.4;
    }

    .toggle_icon {
        color: #3498db;
        transition: transform 0.3s ease;
    }

    .faq_item.active .toggle_icon {
        transform: rotate(180deg);
    }

    .faq_answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        background: #f8f9fa;
        border-radius: 0 0 10px 10px;
        padding: 0 20px;
    }

    .faq_item.active .faq_answer {
        padding: 25px 30px;
        max-height: 1000px;
    }

    .faq_answer p {
        font-size: 16px;
        line-height: 1.8;
        color: #444;
        margin: 20px 0;
    }

    @media (max-width: 768px) {
        .guide_container {
            margin-top: 100px;
            padding: 20px;
        }

        .guide_title {
            font-size: 32px;
        }

        .faq_categories {
            flex-wrap: wrap;
        }

        .category_btn {
            font-size: 14px;
            padding: 10px 20px;
        }

        .category_header h2 {
            font-size: 24px;
        }

        .faq_question {
            padding: 20px;
        }

        .question_content i {
            font-size: 20px;
            width: 32px;
            height: 32px;
        }

        .faq_question h3 {
            font-size: 16px;
        }

        .faq_item.active .faq_answer {
            padding: 20px;
        }

        .faq_answer p {
            font-size: 15px;
        }
    }