/* 能碳管理平台样式 */

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 500;
    color: #333;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background-color: #1abc9c;
    margin: 20px auto 0;
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background-color: #1abc9c;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #16a085;
    transform: translateY(-2px);
}


/* 核心功能 */
.nengtan-features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-item {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: #f0f9ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
}

.feature-icon img {
    width: 40px;
    height: 40px;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 20px;
    color: #333;
}

.feature-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}


/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
    
    .features-grid,
    .advantages-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .banner-content h1 {
        font-size: 36px;
    }
    
    .banner-content p {
        font-size: 18px;
    }
    
    .intro-content,
    .contact-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .tech-content {
        grid-template-columns: 1fr;
    }
    
    .features-grid,
    .advantages-grid,
    .cases-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .nengtan-intro,
    .nengtan-features,
    .nengtan-tech,
    .nengtan-scenarios,
    .nengtan-advantages,
    .nengtan-cases,
    .nengtan-contact {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .banner-content h1 {
        font-size: 28px;
    }
    
    .banner-content p {
        font-size: 16px;
    }
    
    .feature-item,
    .tech-item,
    .scenario-item,
    .advantage-item,
    .case-item,
    .contact-form {
        padding: 30px 20px;
    }
}
    /* 能碳管理平台独特样式 */
   
    .nengtan-banner {
        background: linear-gradient(135deg, #009688, #00796b);
        color: #fff;
        padding: 150px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .nengtan-banner::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: url('https://lf-cdn.trae.com.cn/obj/trae-ai-image/page_image/default.jpeg') no-repeat center center;
        background-size: cover;
        opacity: 0.2;
    }
    .banner-content {
        position: relative;
        z-index: 1;
    }
    .banner-content h1 {
        font-size: 56px;
        font-weight: 500;
        margin-bottom: 20px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    }
    .banner-content p {
        font-size: 24px;
        margin-bottom: 40px;
        opacity: 0.95;
    }
    .btn-primary {
        display: inline-block;
        padding: 15px 40px;
        background-color: #004d40;
        color: #fff;
        text-decoration: none;
        border-radius: 50px;
        font-size: 18px;
        font-weight: 500;
        transition: all 0.3s ease;
        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }
    .btn-primary:hover {
        background-color: #003329;
        transform: translateY(-3px);
        box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    }
    .section-title {
        font-size: 36px;
        font-weight: 500;
        color: #004d40;
        text-align: center;
        margin-bottom: 20px;
    }
    .section-subtitle {
        text-align: center;
        font-size: 14px;
        color: #555;
        margin-bottom: 60px;
        max-width: 800px;
        margin-left: auto;
        margin-right: auto;
    }
    .nengtan-intro {
        padding: 80px 0;
        background-color: #fff;
    }
    .intro-content {
        display: flex;
        align-items: center;
        gap: 80px;
    }
    .intro-text {
        flex: 1;
    }
    .intro-text h3 {
        font-size: 28px;
        color: #00796b;
        margin-bottom: 20px;
    }
    .intro-text p {
        font-size: 16px;
        line-height: 1.8;
        color: #333;
        margin-bottom: 20px;
    }
    .intro-image {
        flex: 1;
    }
    .intro-image img {
        width: 100%;
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
    .nengtan-features {
        padding: 80px 0;
        background-color: #f9f9f9;
    }
    .features-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    .feature-item {
        background-color: #fff;
        padding: 40px;
        border-radius: 12px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
        border-left: 4px solid #009688;
    }
    .feature-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    }
    .feature-icon {
        width: 60px;
        height: 60px;
        background-color: #e0f2f1;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 20px;
    }
    .feature-icon i {
        font-size: 24px;
        color: #009688;
    }
    .feature-item h3 {
        font-size: 20px;
        font-weight: 500;
        margin-bottom: 15px;
        color: #333;
    }
    .feature-item p {
        font-size: 14px;
        color: #666;
        line-height: 1.6;
    }
    .nengtan-tech {
        padding: 80px 0;
        background-color: #00796b;
        color: #fff;
    }
    .nengtan-tech .section-title {
        color: #fff;
    }
    .nengtan-tech .section-subtitle {
        color: rgba(255,255,255,0.8);
    }
    .tech-content {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    .tech-item {
        background-color: rgba(255,255,255,0.1);
        padding: 40px;
        border-radius: 12px;
        transition: all 0.3s ease;
    }
    .tech-item:hover {
        background-color: rgba(255,255,255,0.15);
        transform: translateY(-5px);
    }
    .tech-item h3 {
        font-size: 20px;
        font-weight: 500;
        margin-bottom: 15px;
        color: #fff;
    }
    .tech-item p {
        font-size: 14px;
        color: rgba(255,255,255,0.8);
        line-height: 1.6;
    }
    .nengtan-scenarios {
        padding: 80px 0;
        background-color: #fff;
    }
    .scenarios-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
    .scenario-item {
        background-color: #f9f9f9;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
    }
    .scenario-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }
    .scenario-item img {
        width: 100%;
        /* height: 200px; */
        object-fit: cover;
    }
    .scenario-content {
        padding: 25px;
    }
    .scenario-item h3 {
        font-size: 18px;
        font-weight: 500;
        margin-bottom: 15px;
        color: #333;
    }
    .scenario-item p {
        font-size: 14px;
        color: #666;
        line-height: 1.6;
    }
    .nengtan-advantages {
        padding: 80px 0;
        background-color: #f0f8ff;
    }
    .advantages-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
    .advantage-item {
        background-color: #fff;
        padding: 40px 30px;
        border-radius: 12px;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        text-align: center;
        transition: all 0.3s ease;
    }
    .advantage-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }
    .advantage-icon {
        width: 80px;
        height: 80px;
        background-color: #e0f2f1;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px;
    }
    .advantage-icon i {
        font-size: 32px;
        color: #009688;
    }
    .advantage-item h3 {
        font-size: 18px;
        font-weight: 500;
        margin-bottom: 15px;
        color: #333;
    }
    .advantage-item p {
        font-size: 14px;
        color: #666;
        line-height: 1.6;
    }
    .nengtan-cases {
        padding: 80px 0;
        background-color: #fff;
    }
    .cases-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 40px;
    }
    .case-item {
        background-color: #f9f9f9;
        border-radius: 12px;
        overflow: hidden;
        box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        transition: all 0.3s ease;
    }
    .case-item:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    }
    .case-item img {
        width: 100%;
        height: 200px;
        object-fit: cover;
    }
    .case-content {
        padding: 25px;
    }
    .case-item h3 {
        font-size: 18px;
        font-weight: 500;
        margin-bottom: 15px;
        color: #333;
    }
    .case-item p {
        font-size: 14px;
        color: #666;
        line-height: 1.6;
    }
    .nengtan-contact {
        padding: 80px 0;
        background-color: #f0f8ff;
    }
    .contact-content {
        display: flex;
        gap: 60px;
        background-color: #fff;
        /* padding: 60px; */
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    }
     .contact-content .nengtan-map{
        width: 100%;
    }
    .contact-info {
        flex: 1;
    }
    .contact-info h3 {
        font-size: 24px;
        font-weight: 500;
        margin-bottom: 20px;
        color: #00796b;
    }
    .contact-info p {
        font-size: 16px;
        line-height: 1.8;
        color: #333;
        margin-bottom: 30px;
    }
    .contact-info ul {
        list-style: none;
        padding: 0;
    }
    .contact-info li {
        font-size: 16px;
        margin-bottom: 15px;
        color: #333;
        display: flex;
        align-items: center;
    }
    .contact-info li i {
        font-size: 20px;
        color: #009688;
        margin-right: 15px;
        width: 24px;
        text-align: center;
    }
    .contact-form {
        flex: 1;
    }
    .form-group {
        margin-bottom: 20px;
    }
    .form-group input,
    .form-group textarea {
        width: 100%;
        padding: 15px;
        border: 2px solid #e0f2f1;
        border-radius: 8px;
        font-size: 14px;
        transition: all 0.3s ease;
    }
    .form-group input:focus,
    .form-group textarea:focus {
        outline: none;
        border-color: #009688;
        box-shadow: 0 0 0 3px rgba(0, 150, 136, 0.1);
    }
    .form-group textarea {
        resize: vertical;
        min-height: 120px;
    }
    /* 响应式设计 */
    @media (max-width: 1200px) {
        .container {
            width: 95%;
        }
        .features-grid,
        .tech-content {
            grid-template-columns: 1fr;
        }
        .scenarios-grid,
        .advantages-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .cases-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 768px) {
        .intro-content,
        .contact-content {
            flex-direction: column;
            gap: 40px;
        }
        .scenarios-grid,
        .advantages-grid,
        .cases-grid {
            grid-template-columns: 1fr;
        }
        .nengtan-intro,
        .nengtan-features,
        .nengtan-tech,
        .nengtan-scenarios,
        .nengtan-advantages,
        .nengtan-cases,
        .nengtan-contact {
            padding: 60px 0;
        }
        .section-title {
            font-size: 28px;
        }
    }
.op {
    animation: op 0.1s;
    opacity: 1 !important;
	max-width:1366px;
}