/* 国内空运推广落地页样式 - 扁平化天蓝色主题 */

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 主容器样式 */
.guonei-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    background: #ffffff;
    overflow: hidden;
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, #2196f3, #1976d2);
    padding: 60px 30px;
    text-align: center;
    color: white;
    position: relative;
}

.hero-section h1 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-section p {
    font-size: 18px;
    margin-bottom: 30px;
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    background: #ff5722;
    color: white;
    padding: 15px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 87, 34, 0.3);
}

.cta-button:hover {
    background: #e64a19;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 87, 34, 0.4);
}

/* 综合信息板块 */
.info-section {
    padding: 50px 30px;
    background: #f8fdff;
    max-width: 1280px;
    margin: 0 auto;
}

.section-title {
    color: #1976d2;
    font-size: 32px;
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    font-weight: bold;
}

.section-title::after {
    content: '';
    width: 80px;
    height: 4px;
    background: #2196f3;
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
}

.info-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.8fr 0.8fr;
    gap: 30px;
    margin-bottom: 40px;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

.info-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
    transition: all 0.3s ease;
    border-top: 4px solid #2196f3;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.2);
}

.info-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2196f3, #1976d2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: white;
}

.info-card h4 {
    color: #1565c0;
    font-size: 22px;
    margin-bottom: 15px;
    text-align: center;
    font-weight: bold;
}

.info-card p {
    color: #424242;
    line-height: 1.8;
    font-size: 15px;
    text-align: center;
}

.route-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 15px;
    justify-content: center;
}

.route-list span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    background: #f0f8ff;
    border: 1px solid #bbdefb;
    border-radius: 6px;
    color: #1976d2;
    font-weight: 500;
    font-size: 14px;
    text-align: center;
    transition: all 0.3s ease;
    min-height: 40px;
    white-space: nowrap;
    flex-shrink: 0;
}

.route-list span:hover {
    background: #2196f3;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.3);
}

/* 特色优势区域 */
.features-section {
    padding: 50px 30px;
    background: #f8fdff;
    max-width: 1280px;
    margin: 0 auto;
}

/* 服务范围 */
.service-scope {
    background: #f3f9ff;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
}

.service-scope h4 {
    color: #1565c0;
    font-size: 24px;
    margin-bottom: 20px;
    text-align: center;
}

.service-items {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.service-item {
    background: #ffffff;
    padding: 15px 25px;
    border-radius: 25px;
    border: 2px solid #bbdefb;
    color: #1976d2;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.1);
}

.service-item:hover {
    background: #2196f3;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(33, 150, 243, 0.3);
}

/* 货物分类 */
.cargo-categories {
    background: #e8f4fd;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
}

.cargo-categories h4 {
    color: #1565c0;
    font-size: 24px;
    margin-bottom: 25px;
    text-align: center;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.category-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    border-left: 5px solid #2196f3;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
    transition: all 0.3s ease;
}

.category-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.2);
}

.category-item h5 {
    color: #1976d2;
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: bold;
}

.category-item p {
    color: #616161;
    line-height: 1.6;
    font-size: 15px;
}

/* 服务优势 */
.service-advantages {
    background: #f3f9ff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
}

.service-advantages h4 {
    color: #1565c0;
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
}

.advantage-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.advantage-item {
    background: white;
    padding: 30px 25px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid #e1f5fe;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(33, 150, 243, 0.2);
}

.advantage-item h5 {
    color: #1976d2;
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: bold;
}

.advantage-item p {
    color: #616161;
    line-height: 1.6;
    font-size: 15px;
}

/* 图标样式 */
.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2196f3, #1976d2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 32px;
    color: white;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

/* 底部行动区域 */
.action-section {
    background: linear-gradient(135deg, #1976d2, #1565c0);
    padding: 50px 30px;
    text-align: center;
    color: white;
    margin-top: 40px;
}

.action-section h3 {
    font-size: 28px;
    margin-bottom: 20px;
    font-weight: bold;
}

.action-section p {
    font-size: 18px;
    margin-bottom: 30px;
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 20px;
    }
    
    .hero-section h1 {
        font-size: 28px;
    }
    
    .route-list {
        columns: 2;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .advantage-list {
        grid-template-columns: 1fr;
    }
    
    .service-items {
        gap: 10px;
    }
    
    .service-item {
        padding: 12px 20px;
        font-size: 14px;
    }
}

/* 浮动清除 */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}