/* 
   选择润满区域样式 - 时间线布局：中间数字，左右内容错开
   Choose Runman Section Styles - Timeline Layout
*/

.choose-runman-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.choose-title-wrapper {
    text-align: center;
    margin-bottom: 60px;
}

.choose-title-img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

/* 时间线容器 */
.choose-timeline-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    align-items: start;
}

/* 左右两列 */
.choose-column {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

/* 时间线中间列 */
.choose-timeline-line {
    position: relative;
    width: 4px;
    background: var(--gradient-primary);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    min-height: 100%;
}

/* 数字圆圈 */
.choose-timeline-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
    position: relative;
    z-index: 2;
    border: 4px solid var(--bg-primary);
    flex-shrink: 0;
}

/* 时间线项目 - 上下布局 */
.choose-timeline-item {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.choose-timeline-item:hover {
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.15);
    transform: translateY(-5px);
}

/* 左侧项目：图片在上，内容在下 */
.choose-item-left {
    flex-direction: column;
}

/* 右侧项目：内容在上，图片在下 */
.choose-item-right {
    flex-direction: column-reverse;
}

/* 图片区域 */
.choose-item-image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    position: relative;
    background: #f3f4f6;
    flex-shrink: 0;
}

.choose-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.choose-timeline-item:hover .choose-item-image img {
    transform: scale(1.05);
}

/* 内容区域 */
.choose-item-content {
    flex: 1;
    padding: 30px 25px;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* 标题 */
.choose-item-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 18px;
    line-height: 1.4;
}

/* 副标题图片 */
.choose-subtitle-img {
    max-width: 200px;
    height: auto;
    margin-bottom: 22px;
    display: block;
}

/* 特性列表 */
.choose-features {
    list-style: none;
    padding: 0;
    margin: 0 0 25px 0;
    flex: 1;
}

.choose-features dd {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    padding: 0;
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

.choose-features dd i {
    color: var(--primary-color);
    font-size: 1rem;
    margin-top: 4px;
    flex-shrink: 0;
    width: 20px;
    font-style: normal;
    font-weight: normal;
}

.choose-features dd span {
    flex: 1;
}

/* 按钮 */
.choose-btn-wrapper {
    margin-top: auto;
}

.choose-btn {
    display: inline-block;
    padding: 12px 35px;
    background: var(--gradient-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
    border: none;
    text-align: center;
    width: fit-content;
}

.choose-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .choose-timeline-container {
        gap: 30px;
    }
    
    .choose-column {
        gap: 50px;
    }
}

@media (max-width: 992px) {
    .choose-timeline-container {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .choose-timeline-line {
        display: none;
    }
    
    .choose-column {
        gap: 30px;
        margin-bottom: 30px;
    }
    
    .choose-column:last-child {
        margin-bottom: 0;
    }
    
    .choose-timeline-item {
        flex-direction: column;
        min-height: auto;
    }
    
    .choose-item-left,
    .choose-item-right {
        flex-direction: column;
    }
    
    .choose-item-image {
        flex: 0 0 100%;
        max-width: 100%;
        height: 300px;
    }
    
    .choose-item-content {
        padding: 30px 25px;
    }
}

@media (max-width: 768px) {
    .choose-runman-section {
        padding: 60px 0;
    }
    
    .choose-title-wrapper {
        margin-bottom: 40px;
    }
    
    .choose-column {
        gap: 25px;
    }
    
    .choose-item-content {
        padding: 25px 20px;
    }
    
    .choose-item-title {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }
    
    .choose-subtitle-img {
        max-width: 180px;
        margin-bottom: 18px;
    }
    
    .choose-features dd {
        font-size: 0.9rem;
        margin-bottom: 10px;
    }
    
    .choose-btn {
        padding: 10px 30px;
        font-size: 0.95rem;
    }
    
    .choose-item-image {
        height: 250px;
    }
}