/* 自定义样式 */
body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    color: #333;
    background-color: #fff;
}

/* 时间线样式 */
.timeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: #0066cc;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -12px;
    background-color: white;
    border: 4px solid #0066cc;
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

.timeline-item:nth-child(odd)::after {
    right: -12px;
}

.timeline-item:nth-child(even)::after {
    left: -12px;
}

.timeline-content {
    padding: 20px 30px;
    background-color: white;
    position: relative;
    border-radius: 6px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

@media screen and (max-width: 768px) {
    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item:nth-child(odd)::after,
    .timeline-item:nth-child(even)::after {
        left: 18px;
    }
}

/* 流程步骤样式 */
.process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    position: relative;
    margin: 0 auto;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 5%;
    right: 5%;
    height: 2px;
    background-color: #0066cc;
    z-index: -1;
}

.step {
    width: 16%;
    text-align: center;
    margin-bottom: 30px;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: #0066cc;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 20px;
    font-weight: bold;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.step-content p {
    font-size: 14px;
    color: #666;
}

@media screen and (max-width: 768px) {
    .step {
        width: 30%;
        margin-bottom: 40px;
    }

    .process-steps::before {
        display: none;
    }
}

@media screen and (max-width: 576px) {
    .step {
        width: 50%;
    }
}

/* 图片懒加载 */
.lazy {
    opacity: 0;
    transition: opacity 0.3s;
}

.lazy.loaded {
    opacity: 1;
}

/* 自定义按钮样式 */
.btn-primary {
    background-color: #0066cc;
    border-color: #0066cc;
}

.btn-primary:hover {
    background-color: #0052a3;
    border-color: #0052a3;
}

/* 自定义卡片样式 */
.card {
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}