:root {
    --primary: #009A7E;
    --primary-light: #4dc6ac;
    --primary-dark: #006e58;
    --secondary: #29b6f6;
    --accent: #ff9800;
    --light: #f8f9fa;
    --dark: #343a40;
    --success: #28a745;
    --text: #333333;
    --light-green: #e8f5e9;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    color: var(--text);
    line-height: 1.6;
    background-color: #f9f9f9;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* banner区域样式 */
.page-header {
    padding: 100px 0 80px;
    text-align: center;
    background-image: url('https://t31.cngenial.cn/webfile/upload/2025/09-26/13-57-560714-1658501993.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    min-height: 551px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.page-header .container {
    position: relative;
    margin: 0 auto;
    padding: 0 15px;
    z-index: 2;
}

.page-header h1 {
    color: var(--primary);
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.page-header p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.95;
}

/* 核心优势区域样式 */
.advantages {
    padding: 7vw 0;
    background-color: var(--light);
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2.8rem;
    color: var(--primary);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary);
}

.section-title p {
    font-size: 1.2rem;
    color: var(--text);
    opacity: 0.8;
    max-width: 100%;
    margin: 15px auto 0;
    padding: 0 15px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.advantage-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.advantage-img {
    height: auto;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 20px;
}

.advantage-img img {
    width: 100%;
    max-width: 518px;
    height: auto;
    object-fit: contain;
}

.advantage-content {
    padding: 20px;
    margin-bottom: 60px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.advantage-content h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 15px;
    line-height: 1.3;
    text-align: center;
}

.advantage-content p {
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.feature-list li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
}

.feature-list li i {
    color: var(--success);
    font-size: 1.1rem;
}

/* 解决方案区域样式 */
.solutions-section {
    padding: 60px 0;
    background-color: var(--light);
}

.solution-item {
    display: flex;
    flex-direction: column;
    margin: 30px 0;
    padding: 20px 0;
    gap: 30px;
}

.solution-img {
    height: 150px;
    flex: 1;
    text-align: center;
    margin-top: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 2.2rem;
    position: relative;
}

.solution-img img {
    width: 100%;
    max-width: 570px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.solution-img img:hover {
    transform: scale(1.02);
}

.solution-content {
    flex: 1;
    padding: 20px;
    margin-bottom: 60px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.solution-content h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 15px;
    line-height: 1.3;
    text-align: center;
}

.solution-content p {
    font-size: 1rem;
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-features {
    margin: 0;
    padding-left: 0;
}

.solution-features li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
    list-style: none;
    font-size: 0.95rem;
}

.solution-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
    font-size: 16px;
    position: absolute;
    left: 0;
    top: 0;
}

ul li {
    list-style: none;
}

/* 产品特点区域样式 */
.features-section {
    padding: 60px 0;
    background: white;
}

.features-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.feature-card {
    background: var(--light);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.feature-card p {
    font-size: 0.9rem;
}

/* 技术参数区域样式 */
.specs-section {
    padding: 60px 0;
    background-color: var(--light);
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    font-size: 0.9rem;
}

.specs-table th,
.specs-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.specs-table th {
    background-color: var(--primary);
    color: white;
    font-weight: 500;
}

.specs-table tr:last-child td {
    border-bottom: none;
}

/* 认证资质区域样式 */
.certifications-section {
    padding: 60px 0;
}

.certs-grid {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
}

.cert-item {
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.cert-item img {
    width: 100%;
    height: auto;
}

.cert-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.cert-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.cert-item h3 {
    font-size: 1.1rem;
    color: var(--primary);
}

/* 商业机会区域样式 */
.business-section {
    padding: 60px 0;
}

.opportunity-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.opportunity-card {
    background: #eff4f7;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.opportunity-card:hover {
    background: #4caf93;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.opportunity-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.opportunity-card p {
    font-size: 0.9rem;
    color: #555;
}

/* .solution-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent);
    color: white;
    padding: 4px 8px;
    border-radius: 15px;
    font-size: 11px;
    font-weight: 600;
} */

/* .learn-more {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    margin-top: auto;
    font-size: 0.9rem;
}

.learn-more i {
    margin-left: 5px;
    transition: transform 0.3s;
}

.learn-more:hover i {
    transform: translateX(5px);
} */

/* 下载区域样式 */
.download {
    padding: 90px 0;
    background: url('https://t31.cngenial.cn/webfile/upload/2025/09-23/17-42-370298-5907730.jpg') no-repeat center center;
    background-size: cover;
    text-align: center;
    position: relative;
    min-height: 387px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.download .container {
    position: relative;
    z-index: 2;
}

.download h2 {
    color: var(--primary);
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.download p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

/* .download-buttons {
        display: flex;
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }

    .download-btn {
        background: var(--primary);
        color: white;
        padding: 15px 30px;
        border-radius: 50px;
        text-decoration: none;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 10px;
        transition: all 0.3s;
    }

    .download-btn:hover {
        background: var(--primary);
        color: white;
        transform: translateY(-3px);
    } */

.cta-button {
    background-color: var(--primary);
    color: white;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.cta-button:hover {
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* 响应式设计 */
@media (min-width: 576px) {
    
    .advantages-grid,
    .solutions-grid,
    .features-container,
    .opportunity-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cert-badge {
        font-size: 0.9rem;
    }
}

@media (min-width: 768px) {
    .page-header {
        min-height: 300px;
        padding: 60px 0 40px;
    }

    .page-header h1 {
        font-size: 2.4rem;
    }

    .page-header p {
        font-size: 1.2rem;
        padding: 0 15px;
    }

    .advantage-item {
        flex-direction: row;
        margin: 50px 0;
        gap: 40px;
    }

    .advantage-item:nth-child(even) {
        flex-direction: row-reverse;
    }

    .advantage-content h3,
    .advantage-content p {
        text-align: left;
    }

    .solution-item {
        flex-direction: row;
        margin: 50px 0;
        gap: 40px;
    }

    .solution-item:nth-child(even) {
        flex-direction: row-reverse;
    }

    .solution-content h3,
    .solution-content p {
        text-align: left;
    }

    .features-container {
        grid-template-columns: repeat(2, 1fr);
    }

    .opportunity-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .certs-grid {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .cert-item {
        flex: 0 0 calc(50% - 20px);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .slide-content {
        max-width: 800px;
        padding: 0 40px;
        text-align: left;
    }

    .download {
        min-height: 250px;
        padding: 50px 0;
    }

    .download h2 {
        font-size: 2.2rem;
    }

    .download p {
        font-size: 1rem;
        padding: 0 15px;
    }
}

@media (min-width: 992px) {
    .page-header {
        min-height: 550px;
        padding: 80px 0 60px;
    }

    .page-header h1 {
        font-size: 2.8rem;
    }

    .advantage-item {
        margin: 70px 0;
        gap: 50px;
    }

    .solution-item {
        margin: 70px 0;
        gap: 50px;
    }

    .features-container {
        grid-template-columns: repeat(3, 1fr);
    }

    .opportunity-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .certs-grid {
        justify-content: space-between;
    }

    .cert-item {
        flex: 0 0 calc(33.333% - 30px);
    }

    .advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .solutions-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .download {
        min-height: 300px;
        padding: 70px 0;
    }

}

/* 移动端优化 */
@media (max-width: 992px) {
    .page-header {
        min-height: 250px;
        padding: 80px 0 60px;
    }

    .page-header h1 {
        font-size: 2.4rem;
    }

    .download {
        min-height: 300px;
        padding: 70px 0;
    }
}

@media (max-width: 768px) {
    .advantage-item {
        text-align: center;
        /* flex-direction: row; */
        margin: 40px 0;
        gap: 40px;
    }

    .advantage-content h3,
    .advantage-content p {
        text-align: center;
    }

    .advantage-img {
        margin-top: 0;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .solution-item {
        text-align: center;
        /* flex-direction: row; */
        margin: 40px 0;
        gap: 40px;
    }

    .solution-content h3,
    .solution-content p {
        text-align: center;
    }

    .solution-features li {
        text-align: left;
    }

    .solution-img {
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .page-header {
        background: url('https://t31.cngenial.cn/webfile/upload/2025/09-27/10-11-100071-1289585959.jpg');
        background-size: contain;
        background-repeat: no-repeat;
        min-height: 59vw;
        padding: 80px 0 60px;
    }

    .page-header .container {
        margin-bottom: 40px;
    }

    .page-header h1 {
        font-size: 1.8rem;
    }

    .page-header p {
        font-size: 1.1rem;
    }

    /* .product-hero {
        height: 250px;
        padding: 30px 0;
        background-size: cover !important;
        background-position: center !important;
        width: 534px;
    } */

    .download {
        min-height: 200px;
        padding: 40px 0;
    }

    .download h2 {
        font-size: 1.6rem;
    }
}