/* 内容容器 */
.container {
    max-width: 1200px;
    margin: 50px auto;
    /*padding: 0 20px;*/
    display: flex;
    gap: 40px;
}

/* 左侧导航 */
.services-nav {
    width: 280px;
    flex-shrink: 0;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.08);
    overflow: hidden;
}

.nav-header {
    background: linear-gradient(135deg, #1a2980, #26d0ce);
    color: white;
    padding: 20px;
    font-size: 20px;
    font-weight: 600;
}

.nav-list {
    list-style: none;
}

.nav-item-service {
    border-bottom: 1px solid #edf2f7;
}

    .nav-item-service:last-child {
        border-bottom: none;
    }

.nav-link-service {
    display: block;
    padding: 18px 20px;
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

    .nav-link-service:hover {
        background-color: #f8fafc;
        color: #1a2980;
    }

    .nav-link-service.active {
        background-color: rgba(26, 41, 128, 0.05);
        color: #1a2980;
        font-weight: 600;
    }

        .nav-link-service.active:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 4px;
            background: linear-gradient(to bottom, #1a2980, #26d0ce);
        }

    .nav-link-service i {
        width: 24px;
        margin-right: 12px;
        text-align: center;
        color: #26d0ce;
    }
/* 右侧内容 */
.service-content {
    flex: 1;
    background: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.08);
}

.service-title {
    color: #1a2980;
    font-size: 28px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #edf2f7;
    display: flex;
    align-items: center;
}

    .service-title i {
        background: linear-gradient(135deg, #1a2980, #26d0ce);
        color: white;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 15px;
        font-size: 22px;
    }

.service-description {
    color: #4a5568;
    margin-bottom: 30px;
    font-size: 16px;
    line-height: 1.8;
}

.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.feature-card {
    background: #f8fafc;
    border-radius: 8px;
    padding: 25px;
    border-left: 4px solid #26d0ce;
    transition: all 0.3s;
}

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }

.feature-title {
    color: #1a2980;
    font-size: 18px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

    .feature-title i {
        color: #26d0ce;
        margin-right: 10px;
        font-size: 20px;
    }

.feature-content {
    color: #4a5568;
    line-height: 1.7;
}

.process {
    margin-top: 40px;
}

.section-title {
    color: #1a2980;
    font-size: 22px;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 1px solid #edf2f7;
}

.process-steps {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.step {
    flex: 1;
    min-width: 250px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 20px;
    position: relative;
    padding-left: 60px;
}

.step-number {
    position: absolute;
    left: 20px;
    top: 20px;
    background: linear-gradient(135deg, #1a2980, #26d0ce);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.step-title {
    color: #1a2980;
    margin-bottom: 10px;
    font-size: 18px;
}

.step-description {
    color: #4a5568;
    font-size: 14px;
    line-height: 1.6;
}

.page-title {
    text-align: center;
    color: #1a2980;
    padding: 40px 0 20px;
    font-size: 32px;
    position: relative;
}

    .page-title:after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 100px;
        height: 4px;
        background: linear-gradient(to right, #1a2980, #26d0ce);
        border-radius: 2px;
    }

.contact-box {
    background: linear-gradient(135deg, #1a2980, #26d0ce);
    border-radius: 10px;
    padding: 30px;
    margin-top: 50px;
    color: white;
    display: flex;
    align-items: center;
    gap: 30px;
}

.contact-icon {
    font-size: 48px;
    color: #ffd166;
}

.contact-text {
    flex: 1;
}

    .contact-text h3 {
        font-size: 22px;
        margin-bottom: 15px;
    }

    .contact-text p {
        margin-bottom: 10px;
        opacity: 0.9;
    }
/* 响应式设计 */
@media (max-width: 992px) {
    .container {
        flex-direction: column;
    }

    .services-nav {
        width: 100%;
    }

    .features {
        grid-template-columns: 1fr;
    }
}