/* 产品介绍 */
.flex-container {
    display: flex;
    align-items: center;
    gap: 60px;
}
.flex-title {
    color: #333333;
    font-weight: normal;
    margin: 0;
}


/* 产品特点*/
.features-rows {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin: 30px 0;
}
.feature-row {
    display: flex;
    justify-content: space-between;
    gap: 20px;
}
.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 15px;
    border-radius: 8px;
    background: #f8f9fa;
}
/* 第一行三个项目 - 正常宽度 */
.row-three .feature-item {
    flex: 1;
}
/* 第二行两个项目 - 宽度增加一倍 */
.row-two .feature-item {
    flex: 2; /* 宽度是第一行的两倍 */
    max-width: calc(50% - 10px);
}
.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
    border-radius: 8px;
}
.feature-title {
    color: #333;
    font-weight: normal;
    font-size: 1.1em;
    margin: 0 0 10px 0;
}
.feature-desc {
    color: #666;
    font-size: 0.9em;
    line-height: 1.5;
    margin: 0;
}



/* 历史版本 */
.download-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    padding: 30px;
    margin: 20px 0;
    border: 1px solid #dee2e6;
}

.version-section {
    margin-bottom: 25px;
}

.version-section:last-child {
    margin-bottom: 0;
}

.section-title {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 8px;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.version-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: white;
    border-radius: 8px;
    margin-bottom: 8px;
    border-left: 4px solid #3498db;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.version-item.latest {
    border-left-color: #e74c3c;
    background: linear-gradient(135deg, #fff 0%, #fff5f5 100%);
}

.version-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.version-name {
    font-weight: bold;
    color: #2c3e50;
    font-size: 1.1em;
}

.version-date {
    color: #7f8c8d;
    font-size: 0.9em;
}

.download-links {
    display: flex;
    gap: 10px;
}

.dl-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    background: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-size: 0.85em;
    transition: all 0.3s;
}

.dl-link:hover {
    background: #2980b9;
    transform: translateY(-1px);
}

.dl-link.update-notes {
    background: #9b59b6;
}

.dl-link.update-notes:hover {
    background: #8e44ad;
}

.badge {
    background: #e74c3c;
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7em;
    margin-left: 8px;
}



/* 售后服务 */
.service-simple {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 12px;
    margin: 20px 0;
    text-align: center;
}

.contact-simple {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.contact-simple a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255,255,255,0.15);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s;
}

.contact-simple a:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-2px);
}