/* ========== 优势板块样式 ========== */
.advantages-section {
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 50%, #ffffff 100%);
    padding: 100px 0;
    overflow: hidden;
}

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

.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: #0052dc;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    color: #0a1628;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    color: #64748b;
    line-height: 1.8;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.advantage-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 82, 220, 0.06);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 82, 220, 0.1);
    border-color: rgba(0, 82, 220, 0.15);
}

.adv-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 82, 220, 0.08) 0%, rgba(0, 82, 220, 0.04) 100%);
    border-radius: 16px;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.advantage-card:hover .adv-icon {
    background: linear-gradient(135deg, #0052dc 0%, #0041b3 100%);
}

.advantage-card:hover .adv-icon svg {
    stroke: #ffffff;
}

.adv-icon svg {
    stroke: #0052dc;
}

.adv-num {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: #0052dc;
    letter-spacing: 2px;
    margin-bottom: 12px;
    opacity: 0.6;
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #0a1628;
    margin-bottom: 12px;
}

.advantage-card p {
    font-size: 14px;
    color: #64748b;
    line-height: 1.7;
}

/* 响应式 */
@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .section-title {
        font-size: 30px;
    }
}

@media (max-width: 640px) {
    .advantages-section {
        padding: 60px 0;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .advantage-card {
        padding: 24px 20px;
    }
}

@media (max-width: 480px) {
    .advantages-section {
        padding: 50px 0;
    }
    
    .section-header {
        margin-bottom: 32px;
    }
    
    .section-tag {
        font-size: 12px;
        letter-spacing: 2px;
        padding: 4px 12px;
    }
    
    .section-title {
        font-size: 22px !important;
        line-height: 1.4;
    }
    
    .section-desc {
        font-size: 14px;
        line-height: 1.6;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr !important;
        gap: 14px;
        padding: 0 16px;
    }
    
    .advantage-card {
        padding: 20px 16px;
    }
    
    .adv-icon {
        width: 56px;
        height: 56px;
        margin-bottom: 16px;
    }
    
    .adv-icon svg {
        width: 28px;
        height: 28px;
    }
    
    .advantage-card h3 {
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .advantage-card p {
        font-size: 13px;
        line-height: 1.6;
    }
}