/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(26, 54, 93, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(26, 54, 93, 1);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo h2 {
    color: #d69e2e;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: -5px;
}

.nav-logo span {
    color: #fff;
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #d69e2e;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #d69e2e;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.8), rgba(56, 161, 105, 0.6));
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: #fff;
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.title-line {
    display: block;
    background: linear-gradient(45deg, #fff, #d69e2e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(45deg, #d69e2e, #f6ad55);
    color: #fff;
    box-shadow: 0 4px 15px rgba(214, 158, 46, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(214, 158, 46, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn-secondary:hover {
    background: #fff;
    color: #1a365d;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: #d69e2e;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 0.5rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border: 2px solid #fff;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
}

/* 关于我们样式 */
.about {
    padding: 100px 0;
    background: #f7fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a365d;
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, #d69e2e, #38a169);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text {
    display: grid;
    gap: 2rem;
}

.about-card {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border-left: 4px solid #d69e2e;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #d69e2e, #38a169);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.card-icon i {
    font-size: 1.5rem;
    color: #fff;
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 1rem;
}

.about-card p {
    color: #666;
    line-height: 1.8;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(26, 54, 93, 0.9));
    padding: 2rem;
    color: #fff;
}

.overlay-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

/* 业务服务样式 */
.services {
    padding: 100px 0;
    background: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.service-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.service-card:hover .service-image img,
.service-card:hover .service-image a img {
    transform: scale(1.1);
}

/* Service image links */
.service-image a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.service-image a img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.service-overlay {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(214, 158, 46, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.service-overlay i {
    font-size: 1.2rem;
    color: #fff;
}

.service-content {
    padding: 2rem;
}

.service-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 1rem;
}

.service-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 0.5rem 0;
    color: #666;
    position: relative;
    padding-left: 1.5rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #38a169;
    font-weight: bold;
}

/* 新闻动态样式 */
.news {
    padding: 100px 0;
    background: #f7fafc;
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
}

.news-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.news-card.featured {
    grid-row: span 2;
}

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-card.featured .news-image {
    height: 300px;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.news-category {
    position: absolute;
    top: 15px;
    left: 15px;
    background: rgba(214, 158, 46, 0.9);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.news-content {
    padding: 1.5rem;
}

.news-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.news-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-card.featured .news-title {
    font-size: 1.3rem;
}

.news-excerpt {
    color: #666;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.contact-card {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    background: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #d69e2e, #38a169);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.contact-icon i {
    font-size: 1.5rem;
    color: #fff;
}

.contact-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 1rem;
}

.contact-card p {
    color: #666;
    line-height: 1.6;
}

.contact-form {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 20px;
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a365d;
    margin-bottom: 2rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fff;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #d69e2e;
    box-shadow: 0 0 0 3px rgba(214, 158, 46, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚样式 */
.footer {
    background: #1a365d;
    color: #fff;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #d69e2e;
}

.footer-section p {
    color: #cbd5e0;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #d69e2e;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(214, 158, 46, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #d69e2e;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: #d69e2e;
    color: #fff;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #2d3748;
    padding-top: 2rem;
    text-align: center;
    color: #cbd5e0;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: rgba(26, 54, 93, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .about-card,
    .service-content,
    .news-content,
    .contact-form {
        padding: 1.5rem;
    }
}



/* 详情页英雄区域样式 */
.detail-page-hero {
    height: 60vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 80px; /* 导航栏高度 */
}

.detail-page-hero .hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.detail-page-hero .hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail-page-hero .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.8), rgba(56, 161, 105, 0.6));
    z-index: -1;
}

.detail-page-hero .hero-content {
    text-align: center;
    color: #fff;
    max-width: 800px;
    padding: 0 20px;
    animation: fadeInUp 1s ease-out;
}

.detail-page-hero .hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(45deg, #fff, #d69e2e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-page-hero .hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

/* 详情页内容样式 */
.detail-content {
    padding: 80px 0;
    background: #f7fafc;
}

.detail-content h2 {
    font-size: 2.2rem;
    color: #1a365d;
    margin-bottom: 1.5rem;
    text-align: center;
}

.detail-content h3 {
    font-size: 1.8rem;
    color: #1a365d;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.detail-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 1rem;
}

.detail-content ul {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 1rem;
}

.detail-content li {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #333;
    margin-bottom: 0.5rem;
}

.detail-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 2rem auto;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.news-article {
    background: #fff;
    padding: 3rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    font-size: 1rem;
    color: #666;
}

.article-meta span {
    display: flex;
    align-items: center;
}

.article-meta span i {
    margin-right: 0.5rem;
    color: #d69e2e;
}

@media (max-width: 768px) {
    .detail-page-hero {
        height: 40vh;
        margin-top: 60px;
    }

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

    .detail-page-hero .hero-subtitle {
        font-size: 1rem;
    }

    .detail-content {
        padding: 40px 0;
    }

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

    .detail-content h3 {
        font-size: 1.5rem;
    }

    .detail-content p,
    .detail-content li {
        font-size: 0.95rem;
    }

    .news-article {
        padding: 2rem;
    }

    .article-meta {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }
}




/* Dropdown Menu Styles */
.nav-item.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background-color: rgba(26, 54, 93, 0.95);
    min-width: 200px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    list-style: none;
    padding: 10px 0;
    border-radius: 5px;
    top: 100%; /* Position below the parent nav-link */
    left: 0;
}

.dropdown-menu li a {
    color: white;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
    transition: background-color 0.3s ease;
}

.dropdown-menu li a:hover {
    background-color: #d69e2e;
    color: #fff;
}

.nav-item.dropdown:hover .dropdown-menu {
    display: block;
}

.nav-link i.fa-chevron-down {
    font-size: 0.7em;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.nav-item.dropdown:hover .nav-link i.fa-chevron-down {
    transform: rotate(180deg);
}

@media (max-width: 768px) {
    .nav-item.dropdown:hover .dropdown-menu {
        display: none; /* Hide on hover for mobile */
    }

    .nav-menu.active .nav-item.dropdown .dropdown-menu {
        position: static;
        display: block;
        width: 100%;
        background-color: rgba(26, 54, 93, 0.8);
        box-shadow: none;
        padding: 0;
        border-radius: 0;
    }

    .nav-menu.active .nav-item.dropdown .dropdown-menu li a {
        padding-left: 30px;
    }
}