.AIpage {
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.8;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 服务介绍 */
.services {
    padding: 5rem 0;
    background-color: #fff;
}

.services .section-title {
    margin-top: 10rem;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 2rem;
    color: #1a3a6e;
    position: relative;
    font-weight: bolder
}

.section-subtitle {
    text-align: center;
    font-size: 1.8rem;
    color: #666;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: #00b4d8;
    margin: 10px auto 0;
    border-radius: 2px;
}

.service-cards {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.card {
    flex: 1 1 calc(25% - 24px);
    min-width: 250px;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.card-img {
    height: 200px;
    overflow: hidden;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.card:hover .card-img img {
    transform: scale(1.05);
}

.card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card h3 {
    font-size: 2.2rem;
    margin-top: 1.5rem;
    margin-bottom: 3rem;
    color: #1a3a6e;
    font-weight: bolder
}

.card p {
    color: #555;
    margin-bottom: 1rem;
    flex-grow: 1;
}

/* 优势部分 */
.advantages {
    padding: 5rem 0;
    background: linear-gradient(to bottom, #f0f4f8, #e2e8f0);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.advantage-icon {
    font-size: 3rem;
    color: #00b4d8;
    margin-bottom: 3.5rem;
}

.advantage-item h3 {
    font-size: 2.2rem;
    margin-bottom: 2.5rem;
    color: #1a3a6e;
    font-weight: bolder
}

.advantage-item p {
    color: #555;
    line-height: 1.7;
}

/* 应用场景 */
.use-cases {
    padding: 8rem 0;
    background-color: #fff;
}

.case-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tab-button {
    padding: 1rem 2rem;
    background: #e9ecef;
    border: none;
    margin: 0 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tab-button.active {
    background: #1a3a6e;
    color: white;
}

.tab-button:hover:not(.active) {
    background: #dee2e6;
}

.case-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.case-content.active {
    display: block;
}

.case-item {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    background: #f8f9fa;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.case-image {
    flex: 1;
    min-width: 300px;
}

.case-image img {
    width: 100%;
    height: auto;
    display: block;
}

.case-text {
    flex: 1;
    padding: 2rem;
    min-width: 300px;
}

.case-text h3 {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    color: #1a3a6e;
    font-weight: bolder
}

.case-text p {
    color: #555;
    margin-bottom: 1rem;
}

/* 客户案例 */
.clients {
    padding: 2rem 0;
    background: linear-gradient(135deg, #1a3a6e, #2c5aa0);
    color: white;
}

.clients .section-title {
    color: white;
}

.client-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 3rem;
    margin-top: 3rem;
}

.client-logo {
    filter: brightness(1.2) saturate(0.8);
    opacity: 0.8;
    transition: all 0.3s ease;
    height: 60px;
}

.client-logo:hover {
    filter: brightness(1.5) saturate(1);
    opacity: 1;
}

/* 联系我们 */
.contact {
    padding: 5rem 0;
    background-color: #f8f9fa;
}

.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    align-items: center;
}

.contact-info h3 {
    font-size: 2.2rem;
    margin-bottom: 3.5rem;
    color: #1a3a6e;
    font-weight: bolder
}

.contact-info p {
    margin-bottom: 1rem;
    color: #555;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1.6rem;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.contact-form button {
    background: #1a3a6e;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(26, 58, 110, 0.3);
}

.contact-form button:hover {
    background: #0d2b55;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 58, 110, 0.4);
}

/* 新增验证码样式 */
.captcha-container {
    display: flex;
    gap: 10px;
    margin-bottom: 1rem;
}
 
.captcha-container input {
    flex: 1;
    margin-bottom: 0 !important;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {

    .section-title {
        font-size: 2rem;
    }

    .contact-container {
        flex-direction: column;
        text-align: center;
    }

    .case-text,
    .case-image {
        padding: 1.5rem;
    }
}