/* 定制LED灯带页面专用样式 */

/* 统一板块间距和容器设置 */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.pub-tit{font-size:36px;color:#333;text-align: center;}
.cs1{color:#3498db;}
.subtitle{font-size:16px;color:#666;margin:30px auto 70px;text-align: center;}

/* 统一标题样式 */
.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 18px;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background-color: #3498db;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #6c757d;
    margin-bottom: 70px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

/* 定制服务特点区域 */
.custom-service {
    background-color: #fff;
    padding: 80px 0;
    margin-bottom: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 35px;
}

.feature-item {
    background-color: #f8f9fa;
    padding: 45px 30px;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    text-align: center;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #3498db;
}

.feature-item .icon {
    font-size: 48px;
    color: #3498db;
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 22px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
}

.feature-item p {
    font-size: 16px;
    color: #6c757d;
    line-height: 1.8;
}

/* 定制流程区域 */
.custom-process {
    background-color: #f8f9fa;
    padding: 80px 0;
    margin-bottom: 0;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    position: relative;
}

.process-step {
    flex: 1;
    min-width: 250px;
    text-align: center;
    position: relative;
    margin-bottom: 30px;
}

@media (min-width: 768px) {
    .process-step:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 40px;
        right: -50%;
        width: 100%;
        height: 2px;
        background-color: #e9ecef;
        z-index: 1;
    }
}

.step-number {
    width: 80px;
    height: 80px;
    background-color: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 32px;
    font-weight: 700;
    margin: 0 auto 20px;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.process-step:hover .step-number {
    transform: scale(1.1);
    background-color: #2980b9;
}

.process-step h3 {
    font-size: 22px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
}

.process-step p {
    font-size: 16px;
    color: #6c757d;
    line-height: 1.8;
}

/* 定制选项区域 */
.custom-options {
    background-color: #fff;
    padding: 80px 0;
    margin-bottom: 0;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 35px;
}

.option-category {
    background-color: #f8f9fa;
    padding: 40px 35px;
    border-radius: 12px;
    border: 1px solid #e9ecef;
}

.option-category h3 {
    font-size: 22px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
}

.option-category h3 i {
    margin-right: 10px;
    color: #3498db;
}

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

.option-list li {
    padding: 12px 0;
    font-size: 16px;
    color: #6c757d;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    align-items: center;
    line-height: 1.7;
}

.option-list li:last-child {
    border-bottom: none;
}

.option-list li::before {
    content: '✓';
    color: #27ae60;
    font-weight: bold;
    margin-right: 10px;
    font-size: 16px;
}

/* 定制优势区域 */
.custom-advantages {
    background-color: #3498db;
    color: white;
    padding: 80px 0;
    margin-bottom: 0;
}

.custom-advantages .section-title {
    color: white;
}

.custom-advantages .section-title::after {
    background-color: white;
}

.custom-advantages .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 35px;
}

.advantage-item {
    text-align: center;
    padding: 45px 30px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.advantage-item:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-10px);
}

.advantage-item .icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.advantage-item h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.advantage-item p {
    font-size: 16px;
    opacity: 0.95;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
}

/* 案例展示区域 */
.hot-product {
    background-color: #fff;
    padding: 80px 0;
    margin-bottom: 0;
}

.hot-product ul {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 35px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.hot-product li {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    background-color: #fff;
}

.hot-product li:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.hot-product .com-img {
    height: 250px;
    overflow: hidden;
}

.hot-product img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.hot-product li:hover img {
    transform: scale(1.1);
}

.hot-product h4 {
    padding: 20px;
    margin: 0;
    text-align: center;
}

.hot-product h4 a {
    font-size: 16px;
    line-height: 20px;
    font-weight: 600;
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.hot-product h4 a:hover {
    color: #3498db;
}

/* 行动召唤区域 */
.cta-section {
    background-color: #2c3e50;
    color: white;
    padding: 80px 0;
    text-align: center;
    margin-bottom: 0;
}

.cta-section h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 25px;
    color: white;
}

.cta-section p {
    font-size: 20px;
    margin-bottom: 50px;
    opacity: 0.95;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    padding: 18px 45px;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 20px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 16px;
        margin-bottom: 50px;
    }
    
    .features-grid,
    .process-steps,
    .options-grid,
    .advantages-grid,
    .hot-product ul {
        grid-template-columns: 1fr;
    }
    
    .feature-item,
    .advantage-item,
    .hot-product li,
    .option-category {
        margin-bottom: 25px;
    }
    
    .custom-service,
    .custom-process,
    .custom-options,
    .custom-advantages,
    .hot-product,
    .cta-section {
        padding: 60px 0;
    }
    
    .feature-item,
    .advantage-item,
    .option-category {
        padding: 35px 25px;
    }
    
    .cta-section h2 {
        font-size: 28px;
    }
    
    .cta-section p {
        font-size: 18px;
    }
    
    .cta-button {
        padding: 15px 35px;
        font-size: 18px;
    }
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.back-to-top.visible {
    opacity: 1;
}

.back-to-top:hover {
    background-color: #2980b9;
    transform: translateY(-5px);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}