/* 页面标题部分 */
.page-title {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.8)), url('/images/pexels-photo-3183183.jpeg') center/cover fixed;
    color: white;
    padding: 120px 0;
    margin-top: 76px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(0,102,204,0.2) 0%, transparent 70%);
}

.page-title h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    position: relative;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    animation: fadeInDown 0.8s ease-out;
}

.breadcrumb {
    background: transparent;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.breadcrumb-item a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: all 0.3s ease;
}

.breadcrumb-item a:hover {
    color: white;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
}

.breadcrumb-item.active {
    color: rgba(255,255,255,0.9);
}

/* 产品概述部分 */
.product-overview {
    padding: 100px 0;
    background: white;
}

.overview-content {
    padding-right: 50px;
}

.overview-content h2 {
    color: #2c3e50;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 20px;
}

.overview-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-blue);
    border-radius: 2px;
}

.overview-content p {
    color: #555;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.overview-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    transition: all 0.5s ease;
}

.overview-image:hover {
    transform: translateY(-10px);
}

.overview-image img {
    width: 100%;
    height: auto;
    transition: transform 0.5s ease;
}

.overview-image:hover img {
    transform: scale(1.1);
}

/* 核心功能部分 */
.core-features {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    color: #2c3e50;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 60px;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-blue);
    border-radius: 2px;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    height: 100%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
    border: 1px solid rgba(0,102,204,0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0,102,204,0.05) 0%, transparent 70%);
    top: -50%;
    left: -50%;
    transform: rotate(45deg);
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.feature-card:hover::before {
    transform: rotate(90deg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: rgba(0,102,204,0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon {
    background: var(--primary-blue);
}

.feature-icon i {
    font-size: 2rem;
    color: var(--primary-blue);
    transition: all 0.4s ease;
}

.feature-card:hover .feature-icon i {
    color: white;
    transform: rotate(360deg);
}

.feature-card h3 {
    color: #2c3e50;
    font-size: 1.4rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.feature-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-card ul li {
    color: #555;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.feature-card ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    top: 2px;
    font-size: 0.9rem;
}

/* 技术优势部分 */
.tech-advantages {
    padding: 100px 0;
    background: white;
}

.advantage-card {
    text-align: center;
    padding: 40px 30px;
    background: #f8f9fa;
    border-radius: 20px;
    transition: all 0.4s ease;
    height: 100%;
}

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

.advantage-icon {
    width: 100px;
    height: 100px;
    background: rgba(0,102,204,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    transition: all 0.4s ease;
}

.advantage-card:hover .advantage-icon {
    background: var(--primary-blue);
}

.advantage-icon i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    transition: all 0.4s ease;
}

.advantage-card:hover .advantage-icon i {
    color: white;
    transform: rotate(360deg);
}

.advantage-card h3 {
    color: #2c3e50;
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.advantage-card p {
    color: #666;
    line-height: 1.7;
    margin: 0;
}

/* 应用场景部分 */
.application-scenarios {
    padding: 100px 0;
    background: #f8f9fa;
}

.scenario-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
}

.scenario-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.scenario-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.scenario-card:hover img {
    transform: scale(1.1);
}

.scenario-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: white;
}

.scenario-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.scenario-content p {
    margin: 0;
    font-size: 1rem;
    opacity: 0.9;
}

/* 联系咨询部分 */
.contact-section {
    padding: 100px 0;
    background: white;
}

.contact-card {
    background: var(--primary-blue);
    border-radius: 20px;
    padding: 50px;
    color: white;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    top: -150px;
    right: -150px;
    border-radius: 50%;
}

.contact-card h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.contact-card p {
    font-size: 1.1rem;
    margin: 0;
    opacity: 0.9;
}

.contact-card .btn-primary {
    background: white;
    color: var(--primary-blue);
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.contact-card .btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* 响应式调整 */
@media (max-width: 991px) {
    .overview-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .feature-card {
        margin-bottom: 30px;
    }

    .advantage-card {
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .page-title {
        padding: 80px 0;
    }

    .page-title h1 {
        font-size: 2.5rem;
    }

    .overview-content h2 {
        font-size: 2rem;
    }

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

    .feature-icon {
        width: 60px;
        height: 60px;
    }

    .feature-icon i {
        font-size: 1.5rem;
    }

    .scenario-card img {
        height: 250px;
    }

    .contact-card {
        padding: 30px;
        text-align: center;
    }

    .contact-card .btn-primary {
        margin-top: 20px;
    }
}

@media (max-width: 576px) {
    .page-title h1 {
        font-size: 2rem;
    }

    .overview-content h2 {
        font-size: 1.8rem;
    }

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

    .feature-card,
    .advantage-card {
        padding: 30px 20px;
    }

    .scenario-card img {
        height: 200px;
    }
}

/* 动画效果 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}