.services-nav {
    position: relative;
    background: #003561 url('../img/service-header.png') no-repeat center center;
    background-size: cover;
    min-height: 80px;
    padding: 37px 0 15px;
    z-index: 1000;
}

.services-nav .navbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    width: 100%;
    position: relative;
}

.services-nav .navbar-nav {
    list-style: none;
    display: flex;
    gap: 30px;
    margin: 0;
    padding: 0;
    justify-content: flex-end;
}

.services-nav .navbar-nav li a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
    position: relative;
}

.services-nav .navbar-nav li a:hover {
    color: #ffc107;
}

.services-nav .navbar-nav li a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #ffc107;
    transition: width 0.3s;
}

.services-nav .navbar-nav li.active a::after {
    width: 40px;
}

.services-nav .navbar-nav li.active a {
    color: #ffc107;
}

.services-nav .navbar-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.services-nav .navbar-toggle .toggle-bar {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s;
}

.services-header {
    color: #fff;
    text-align: left;
    position: relative;
    overflow: hidden;
    padding-top: 60px;
    margin-bottom: 50px;
}

.services-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-size: cover;
    opacity: 0.1;
}

.services-header h1 {
    font:bold;
    font-size: 42px;
    font-weight: 300;
    margin-bottom: 30px;
    letter-spacing: 4px;
    color: #fff;
}

.services-header p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.8;
    color: #fff;
}

.services-intro {
    padding: 60px 0;
    background: #fff;
    text-align: center;
}

.services-intro p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.services-detail {
    padding: 60px 0;
    background: none;
}

.service-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 60px;
    border: none;
    background: none;
}

.services-detail .service-content {
    border: none !important;
    background: none !important;
    border-radius: 0 !important;
    padding: 60px !important;
    position: static !important;
    cursor: default !important;
    min-height: auto !important;
    overflow: visible !important;
    text-align: left !important;
}

.service-section:nth-child(even) {
    grid-template-columns: 1fr 1fr;
}

.service-section:nth-child(even) .service-content {
    grid-column: 2;
    grid-row: 1;
}

.service-section:nth-child(even) .service-image {
    grid-column: 1;
    grid-row: 1;
}

.service-content h3 {
    font-size: 26px;
    color: #666;
    font-weight: 500;
    margin-bottom: 15px;
}

.services-detail .title-underline {
    width: 60px;
    height: 1px;
    background: #888;
    margin: 0 0 25px 0;
}

.service-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-top: 20px;
    margin-bottom: 30px;
}

.service-content ul {
    list-style: none;
    padding: 0;
}

.service-content ul li {
    font-size: 14px;
    color: #555;
    margin-bottom: 5px;
}

.service-image {
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.services-stats {
    background: linear-gradient(135deg, #003561 0%, #006994 100%);
    color: #fff;
    padding: 60px 0;
    margin-top: 40px;
}

.services-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.services-stats-item h3 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.services-stats-item h3 span {
    font-size: 18px;
    font-weight: 400;
}

.services-stats-item p {
    font-size: 16px;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .services-nav .navbar {
        flex-wrap: wrap;
    }

    .services-nav .navbar-toggle {
        display: flex;
    }

    .services-nav .navbar-nav {
        display: none;
        flex-direction: column;
        width: auto;
        gap: 0;
        background: rgba(0, 53, 97, 0.95);
        padding: 15px 0;
        position: absolute;
        top: calc(100% + 5px);
        right: 10px;
        border-radius: 8px;
        min-width: 150px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        z-index: 1001;
    }

    .services-nav .navbar-nav.active {
        display: flex;
    }

    .services-nav .navbar-nav li {
        text-align: center;
        padding: 10px 20px;
    }

    .services-nav .navbar-nav li a {
        display: block;
        font-size: 16px;
        padding: 5px 0;
    }

    .services-nav .navbar-nav li a::after {
        bottom: 0;
    }

    .services-nav .navbar-toggle.active .toggle-bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .services-nav .navbar-toggle.active .toggle-bar:nth-child(2) {
        opacity: 0;
    }

    .services-nav .navbar-toggle.active .toggle-bar:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .services-header h1 {
        font-size: 28px;
    }

    .services-header h2 {
        font-size: 18px;
    }

    .service-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .service-section:nth-child(even) {
        grid-template-columns: 1fr;
    }

    .service-section:nth-child(even) .service-content {
        grid-column: 1;
        grid-row: 2;
    }

    .service-section:nth-child(even) .service-image {
        grid-column: 1;
        grid-row: 1;
    }

    .service-content h3 {
        font-size: 22px;
    }

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

    .services-stats-item h3 {
        font-size: 32px;
    }
}

/* Footer 样式 */
.footer-content {
    display: flex;
    flex-direction: column;
}

.footer-desc {
    text-align: left;
    color: #fff;
    font-size: 14px;
    margin-bottom: 30px;
    margin-left: 60px;
    opacity: 0.8;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

@media (max-width: 768px) {
    .footer-main {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-desc {
        font-size: 13px;
        margin-bottom: 20px;
    }
}