.three-column-cards-section {
    margin: 3rem 0;
    text-align: center;
}

.three-column-cards-section h2 {
    color: #ffffff;
    margin-bottom: 2rem;
    font-size: 2.2rem;
    font-weight: 700;
}

.three-column-cards-container {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.three-column-card {
    background: linear-gradient(135deg, rgba(37, 41, 52, 0.8), rgba(30, 34, 45, 0.9));
    border-radius: 12px;
    padding: 2rem;
    flex: 1;
    min-width: 280px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.three-column-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

.three-column-card h3 {
    color: #ffffff;
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.three-column-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    font-size: 1rem;
}

.faq-accordion-section {
    margin: 3rem 0;
}

.faq-accordion-section h2 {
    color: #ffffff;
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2.2rem;
    font-weight: 700;
}

.faq-accordion-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: rgba(37, 41, 52, 0.7);
    color: #ffffff;
    border: none;
    padding: 1.2rem 1.5rem;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: rgba(50, 55, 70, 0.7);
}

.faq-question.active {
    background: rgba(60, 65, 85, 0.7);
    border-radius: 8px 8px 0 0;
}

.faq-icon {
    font-size: 0.8rem;
    transition: transform 0.3s ease;
}

.faq-answer {
    background: rgba(30, 34, 45, 0.9);
    padding: 1.2rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 0 0 8px 8px;
}

.faq-answer p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin: 0;
}

.info-card {
    background: linear-gradient(135deg, #1a1e2b, #2a2f41);
    border-radius: 15px;
    padding: 2.5rem;
    margin-bottom: 3rem;
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
    z-index: 0;
}

.info-card h2 {
    color: #ffffff;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    position: relative;
    font-weight: 800;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.info-card h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    position: relative;
    font-weight: 600;
    z-index: 1;
}

.info-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.info-card ul {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.info-card ul li {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 0.8rem;
    position: relative;
}

.info-card ul li strong {
    color: #ffffff;
    font-weight: 600;
}

/* 方法容器样式 */
.methods-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}


.method-card {
    background: linear-gradient(135deg, #2a2f41, #3a3f51);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 
        0 8px 20px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.method-card:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 12px 25px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}


@media (max-width: 992px) {
    .three-column-cards-container {
        flex-direction: column;
        align-items: center;
    }
    
    .three-column-card {
        width: 100%;
        max-width: 600px;
    }
    
    .methods-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }
}

@media (max-width: 768px) {
    .three-column-cards-section h2,
    .faq-accordion-section h2 {
        font-size: 1.8rem;
    }
    
    .faq-question {
        font-size: 1rem;
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .methods-container {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }
    
    .info-card {
        padding: 1.5rem 1.2rem;
        margin-bottom: 1.5rem;
        border-radius: 12px;
    }
    
    .info-card h2 {
        font-size: 1.6rem;
        margin-bottom: 1.2rem;
    }
    
    .info-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .info-card p,
    .info-card ul li {
        font-size: 0.95rem;
        line-height: 1.5;
    }
    
    .info-card ul {
        padding-left: 1.2rem;
    }
    
    .method-card {
        padding: 1.2rem;
        border-radius: 8px;
    }
}