* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(18, 30, 50, 0.95);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    border-radius: 6px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 12px;
    flex-shrink: 0;
}

.logo-icon-inner {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-icon-inner img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
}

.logo-text {
    color: #fff;
    font-size: 18px;
    font-weight: bold;
}

.logo-slogan {
    color: #00a8ff;
    font-size: 11px;
    margin-top: 2px;
    letter-spacing: 1px;
}

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

.nav-menu li {
    margin-left: 30px;
}

.nav-menu li a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: #00a8ff;
}

.banner {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
}

.banner video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(18, 30, 50, 0.8) 0%, rgba(18, 30, 50, 0.6) 50%, rgba(0, 168, 255, 0.3) 100%);
}

.banner-transition-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(18, 30, 50, 0.95);
    opacity: 0;
    pointer-events: none;
    z-index: 0;
    transition: opacity 1.2s ease;
}

.banner-transition-overlay.fade-in {
    opacity: 1;
}

.banner-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    color: #fff;
}

.banner-content h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.banner-content .tagline {
    font-size: 24px;
    color: #00a8ff;
    margin-bottom: 20px;
    font-weight: 600;
}

.banner-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.banner-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-block;
    padding: 12px 35px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #00a8ff;
    color: #fff;
    border: 2px solid #00a8ff;
}

.contact-form .btn-primary {
    margin-top: 5px;
}

.btn-primary:hover {
    background: #0088cc;
    border-color: #0088cc;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 168, 255, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.stats {
    background: #0f1a2a;
    padding: 30px 0;
}

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

.stat-item {
    color: #fff;
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: #00a8ff;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 15px;
}

.section-title p {
    color: #666;
    font-size: 14px;
}

.section-title .line {
    width: 60px;
    height: 3px;
    background: #00a8ff;
    margin: 15px auto 0;
}

.products-core {
    background: #f8fafc;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card-link {
    text-decoration: none;
}

.product-card {
    background: #fff;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-card-link:hover .product-card {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: #fff;
}

.product-card h3 {
    font-size: 16px;
    color: #0f1a2a;
    margin-bottom: 10px;
    font-weight: 600;
}

.product-card p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.products-showcase {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-item-link {
    text-decoration: none;
}

.product-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-item-link:hover .product-item {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.product-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.product-item .product-info {
    padding: 20px;
}

.product-item .product-info h4 {
    font-size: 15px;
    color: #0f1a2a;
    margin-bottom: 8px;
    font-weight: 600;
}

.product-item .product-info p {
    font-size: 12px;
    color: #888;
}

.view-more {
    text-align: center;
    margin-top: 40px;
}

.features {
    background: #0f1a2a;
    padding: 80px 0;
}

.features .section-title h2 {
    color: #fff;
}

.features .section-title p {
    color: rgba(255, 255, 255, 0.6);
}

.features-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.features-list {
    color: #fff;
}

.features-list h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #00a8ff;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 168, 255, 0.2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
    flex-shrink: 0;
}

.feature-icon i {
    color: #00a8ff;
    font-size: 16px;
}

.feature-text h4 {
    font-size: 16px;
    margin-bottom: 8px;
    font-weight: 600;
}

.feature-text p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.features-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feature-stat {
    background: rgba(255, 255, 255, 0.05);
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 120px;
}

.feature-stat .stat-label {
    font-size: 12px;
    color: rgba(0, 168, 255, 0.8);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.feature-stat .stat-value {
    font-size: 32px;
    font-weight: bold;
    color: #00a8ff;
    margin-bottom: 5px;
}

.feature-stat .stat-desc {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.cta {
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    padding: 60px 0;
    text-align: center;
}

.cta h3 {
    font-size: 28px;
    color: #fff;
    margin-bottom: 15px;
    font-weight: 600;
}

.cta p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 30px;
}

.cta .btn-secondary {
    border-color: #fff;
}

.footer {
    background: #0a1220;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
    line-height: 1.8;
    margin-bottom: 15px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #00a8ff;
}

.contact-info li {
    display: flex;
    align-items: center;
	color:#666;
}

.contact-info li span {
    margin-right: 10px;
    color: #00a8ff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 12px;
}

.mobile-menu-toggle {
    display: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background: #fff;
    display: block;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s ease;
}

.mobile-menu-toggle span:nth-child(1) {
    top: 8px;
}

.mobile-menu-toggle span:nth-child(2) {
    top: 50%;
    transform: translate(-50%, -50%);
}

.mobile-menu-toggle span:nth-child(3) {
    bottom: 8px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    top: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    bottom: 50%;
    transform: translate(-50%, 50%) rotate(45deg);
}

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: #0f1a2a;
        flex-direction: column;
        padding: 20px;
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 15px 0;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .banner-content h1 {
        font-size: 32px;
    }

    .banner-content .tagline {
        font-size: 18px;
    }

    .banner-content p {
        font-size: 14px;
        padding: 0 20px;
    }

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

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

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

    .features-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

@media (max-width: 768px) {
    .banner-content h1 {
        font-size: 26px;
    }

    .banner-content .tagline {
        font-size: 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-number {
        font-size: 32px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .banner-content h1 {
        font-size: 22px;
    }

    .banner-content .tagline {
        font-size: 14px;
    }

    .banner-buttons {
        flex-direction: column;
        width: 80%;
    }

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

    .products-showcase {
        grid-template-columns: 1fr;
    }

    .features-stats {
        grid-template-columns: 1fr;
    }
}

.page-banner {
    position: relative;
    height: 300px;
    overflow: hidden;
    background: linear-gradient(135deg, #0f1a2a, #1a2a4a);
}

.page-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.page-banner-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    text-align: center;
    color: #fff;
}

.page-banner-content h1 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 15px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumbs a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.breadcrumbs a:hover {
    color: #00a8ff;
}

.about-banner {
    background: linear-gradient(135deg, #0f1a2a 0%, #1a2a40 100%);
}

.about-intro-section {
    padding: 80px 0;
}

.about-intro-row {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: flex-start;
}

.about-intro-left {
    padding-right: 20px;
}

.section-subtitle {
    font-size: 12px;
    color: #00a8ff;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.about-intro-left h2 {
    font-size: 32px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.about-intro-left h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #00a8ff, #0066cc);
}

.about-intro-left p {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
    margin-bottom: 18px;
    text-align: justify;
}

.about-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.about-stat-box {
    background: linear-gradient(135deg, #f8fafc 0%, #e8f4fc 100%);
    padding: 25px;
    border-radius: 12px;
    text-align: center;
}

.about-stat-box .stat-year {
    font-size: 28px;
    font-weight: bold;
    color: #00a8ff;
    margin-bottom: 8px;
}

.about-stat-box .stat-name {
    font-size: 13px;
    color: #666;
}

.about-intro-right {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.vision-card {
    background: linear-gradient(135deg, #00a8ff 0%, #0066cc 100%);
    padding: 35px;
    border-radius: 16px;
    color: #fff;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 168, 255, 0.3);
}

.vision-card .vision-icon {
    margin-bottom: 20px;
}

.vision-card h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
}

.vision-card p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 8px;
    opacity: 0.95;
}

.about-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.about-values {
    padding: 80px 0;
    background: #0f1a2a;
}

.about-values .section-subtitle {
    color: #00a8ff;
}

.about-values h2 {
    font-size: 32px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 50px;
    text-align: center;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.value-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 35px 25px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.value-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.value-card .value-icon {
    margin-bottom: 20px;
    opacity: 0.9;
}

.value-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.about-history {
    padding: 80px 0;
}

.about-history .section-subtitle {
    text-align: center;
}

.about-history h2 {
    font-size: 32px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 50px;
    text-align: center;
}

.about-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.about-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e0e0e0;
    transform: translateX(-50%);
}

.about-timeline-item {
    position: relative;
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
}

.about-timeline-item:last-child {
    margin-bottom: 0;
}

.about-timeline-item:nth-child(odd) .about-timeline-content {
    margin-right: calc(50% + 30px);
}

.about-timeline-item:nth-child(even) .about-timeline-content {
    margin-left: calc(50% + 30px);
}

.about-timeline-dot {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 16px;
    height: 16px;
    background: #00a8ff;
    border-radius: 50%;
    border: 4px solid #fff;
    box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.3);
    transform: translate(-50%, -50%);
    z-index: 2;
}

.about-timeline-content {
    width: 42%;
    padding: 25px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.about-timeline-content .about-timeline-year {
    font-size: 24px;
    font-weight: bold;
    color: #00a8ff;
    margin-bottom: 10px;
}

.about-timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 10px;
}

.about-timeline-content p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.about-certifications {
    padding: 80px 0;
    background: #f8fafc;
}

.about-certifications .section-subtitle {
    text-align: center;
}

.about-certifications h2 {
    font-size: 32px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 50px;
    text-align: center;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.certification-card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.certification-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.certification-card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 15px;
}

.certification-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: #0f1a2a;
}

.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #00a8ff;
}

.timeline-item {
    position: relative;
    padding: 25px 0;
    border-bottom: 1px solid #eee;
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-year {
    position: absolute;
    left: -80px;
    top: 25px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    font-weight: bold;
    color: #fff;
}

.timeline-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 10px;
}

.timeline-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-member {
    text-align: center;
    padding: 30px;
    background: #f8fafc;
    border-radius: 8px;
}

.team-member-photo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 32px;
    font-weight: bold;
    color: #fff;
}

.team-member h4 {
    font-size: 16px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 10px;
}

.team-member p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 24px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 30px;
}

.contact-form h2 {
    font-size: 24px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 20px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-detail-item {
    display: flex;
    align-items: flex-start;
}

.contact-icon {
    width: 45px;
    height: 45px;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 15px;
    font-size: 18px;
    color: #00a8ff;
    font-weight: bold;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 5px;
}

.contact-text p {
    font-size: 14px;
    color: #666;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00a8ff;
}

.map-container {
    position: relative;
    height: 400px;
    border-radius: 8px;
    overflow: hidden;
}

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

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
}

.map-marker {
    display: flex;
    align-items: center;
    gap: 15px;
    background: rgba(255, 255, 255, 0.95);
    padding: 20px 30px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.marker-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 22px;
    font-weight: bold;
    color: #fff;
}

.marker-info h4 {
    font-size: 18px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 5px;
}

.marker-info p {
    font-size: 14px;
    color: #666;
}

.product-category {
    background: #f8fafc;
    padding: 40px 0;
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.category-tab {
    padding: 10px 25px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 25px;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.category-tab:hover {
    background: #f0f8ff;
    border-color: #00a8ff;
    color: #00a8ff;
}

.category-tab.active {
    background: #00a8ff;
    border-color: #00a8ff;
    color: #fff;
    cursor: default;
}

.product-list-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.product-list-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    background: #fff;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-list-item:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-3px);
}

.product-list-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
}

.product-list-info h3 {
    font-size: 20px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 10px;
}

.product-list-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
}

.product-list-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.product-list-specs span {
    padding: 5px 12px;
    background: #f8fafc;
    border-radius: 4px;
    font-size: 12px;
    color: #666;
}

.pagination-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.pagination-info {
    font-size: 14px;
    color: #666;
}

.pagination-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.pagination-link {
    padding: 10px 20px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination-link:hover {
    background: #f0f8ff;
    border-color: #00a8ff;
    color: #00a8ff;
}

.pagination-numbers {
    display: flex;
    gap: 8px;
}

.pagination-numbers .page-num {
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination-numbers .page-num:hover {
    background: #f0f8ff;
    border-color: #00a8ff;
    color: #00a8ff;
}

.pagination-numbers .page-num-current {
    background: #00a8ff;
    border-color: #00a8ff;
    color: #fff;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.product-main-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border-radius: 8px;
}

.product-thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 15px;
}

.thumbnail-item {
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s ease;
}

.thumbnail-item.active,
.thumbnail-item:hover {
    border-color: #00a8ff;
}

.thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-info h2 {
    font-size: 28px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 15px;
}

.product-detail-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.product-category,
.product-model {
    padding: 15px 15px;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 4px;
    font-size: 13px;
    color: #00a8ff;
}

.product-detail-description {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-detail-specs h3 {
    font-size: 18px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 20px;
}

.product-detail-specs table {
    width: 100%;
    border-collapse: collapse;
}

.product-detail-specs table tr {
    border-bottom: 1px solid #eee;
}

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

.product-detail-specs table td {
    padding: 12px 0;
    font-size: 14px;
}

.product-detail-specs table td:first-child {
    color: #666;
    width: 40%;
}

.product-detail-specs table td:last-child {
    color: #0f1a2a;
    font-weight: 500;
}

.product-detail-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.product-features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-feature-item {
    text-align: center;
    padding: 30px;
    background: #f8fafc;
    border-radius: 8px;
}

.product-feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00a8ff, #0066cc);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
    font-size: 24px;
    font-weight: bold;
    color: #fff;
}

.product-feature-item h3 {
    font-size: 16px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 10px;
}

.product-feature-item p {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
}

.product-usage-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.product-usage-item {
    text-align: center;
    border-radius: 8px;
    overflow: hidden;
}

.product-usage-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.product-usage-item h3 {
    font-size: 14px;
    font-weight: 600;
    color: #0f1a2a;
    padding: 15px;
    background: #f8fafc;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.related-product-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.related-product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.related-product-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: #0f1a2a;
    padding: 20px;
}

.related-product-item .btn {
    margin: 0 20px 20px;
    width: calc(100% - 40px);
    text-align: center;
}

/* 产品内容详情 */
.product-content-detail {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.product-detail-content-section {
    padding-top: 10px;
}

.product-content-detail h2 {
    font-size: 24px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #00a8ff;
}

.product-content-body {
    line-height: 1.8;
    color: #555;
    font-size: 15px;
}

.product-content-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: #0f1a2a;
    margin: 25px 0 12px;
    padding-left: 12px;
    border-left: 3px solid #00a8ff;
}

.product-content-body p {
    margin-bottom: 15px;
}

/* 上一个/下一个导航 */
.product-nav {
    padding: 30px 0;
    background: #f8fafc;
    border-top: 1px solid #e5e7eb;
}

.product-nav-links {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.product-nav-prev,
.product-nav-next {
    display: flex;
    flex-direction: column;
    padding: 15px 25px;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    flex: 1;
    max-width: 40%;
    text-decoration: none;
}

.product-nav-prev {
    text-align: left;
}

.product-nav-next {
    text-align: right;
    align-items: flex-end;
}

.product-nav-prev:hover,
.product-nav-next:hover {
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.15);
    transform: translateY(-2px);
}

.product-nav-label {
    font-size: 13px;
    color: #00a8ff;
    margin-bottom: 5px;
}

.product-nav-title {
    font-size: 16px;
    font-weight: 600;
    color: #0f1a2a;
}

.product-nav-back {
    display: inline-block;
    padding: 10px 25px;
    background: #0f1a2a;
    color: #fff;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
    white-space: nowrap;
    text-decoration: none;
}

.product-nav-back:hover {
    background: #00a8ff;
}

.news-content {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 40px;
}

.news-list-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 25px;
    padding: 25px 0;
    border-bottom: 1px solid #eee;
}

.news-list-item:last-child {
    border-bottom: none;
}

.news-list-image img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 6px;
}

.news-list-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
}

.news-category {
    padding: 3px 10px;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 4px;
    font-size: 12px;
    color: #00a8ff;
}

.news-date {
    font-size: 13px;
    color: #999;
}

.news-list-info h3 {
    font-size: 18px;
    font-weight: 600;
    color: #0f1a2a;
    margin-bottom: 10px;
}

.news-list-info h3 a {
    color: #0f1a2a;
    text-decoration: none;
}

.news-list-info h3 a:hover {
    color: #00a8ff;
}

.news-list-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-read-more {
    font-size: 14px;
    color: #00a8ff;
    text-decoration: none;
}

.news-read-more:hover {
    text-decoration: underline;
}

.news-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-section {
    background: #f8fafc;
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.sidebar-section h3 {
    font-size: 16px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #00a8ff;
}

.news-categories {
    list-style: none;
}

.news-categories li {
    margin-bottom: 12px;
}

.news-categories li a {
    font-size: 14px;
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-categories li a.active,
.news-categories li a:hover {
    color: #00a8ff;
}

.news-recent {
    list-style: none;
}

.news-recent li {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
}

.news-recent li:last-child {
    border-bottom: none;
}

.news-recent li a {
    font-size: 13px;
    color: #666;
    text-decoration: none;
    display: block;
    margin-bottom: 5px;
    transition: color 0.3s ease;
}

.news-recent li a:hover {
    color: #00a8ff;
}

.news-recent li span {
    font-size: 12px;
    color: #999;
}

.sidebar-contact p {
    font-size: 13px;
    color: #666;
    margin-bottom: 15px;
}

.sidebar-qrcode {
    width: 120px;
    height: 120px;
    background: #fff;
    border-radius: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.qrcode-placeholder {
    font-size: 14px;
    color: #00a8ff;
    font-weight: 600;
}

.news-detail-content {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 40px;
}

.news-detail-main article h1 {
    font-size: 28px;
    font-weight: bold;
    color: #0f1a2a;
    margin-bottom: 20px;
}

.news-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
    padding: 15px 20px;
    background: #f8fafc;
    border-radius: 4px;
}

.news-detail-category {
    padding: 3px 12px;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 4px;
    font-size: 13px;
    color: #00a8ff;
}

.news-detail-date,
.news-detail-author {
    font-size: 14px;
    color: #666;
}

.news-detail-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 30px;
}

.news-detail-body {
    font-size: 15px;
    color: #333;
    line-height: 1.8;
}

.news-detail-body p {
    margin-bottom: 20px;
}

.news-detail-body h3 {
    font-size: 20px;
    font-weight: bold;
    color: #0f1a2a;
    margin: 30px 0 15px;
}

.news-detail-tags {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.news-detail-tags span {
    font-size: 14px;
    color: #666;
}

.news-detail-tags a {
    display: inline-block;
    margin-left: 10px;
    padding: 5px 12px;
    background: #f8fafc;
    border-radius: 4px;
    font-size: 13px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
}

.news-detail-tags a:hover {
    background: #00a8ff;
    color: #fff;
}

.news-detail-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.news-nav-item {
    font-size: 14px;
}

.news-nav-item span {
    color: #666;
}

.news-nav-item a {
    color: #0f1a2a;
    text-decoration: none;
}

.news-nav-item a:hover {
    color: #00a8ff;
}

@media (max-width: 992px) {
    .about-intro-row {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-intro-left {
        padding-right: 0;
    }

    .about-stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }

    .about-image img {
        height: 250px;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about-timeline::before {
        left: 20px;
    }

    .about-timeline-dot {
        left: 20px;
        top: 25px;
        transform: translateX(-50%);
    }

    .about-timeline-item:nth-child(odd) .about-timeline-content,
    .about-timeline-item:nth-child(even) .about-timeline-content {
        margin-left: 50px;
        margin-right: 0;
        width: calc(100% - 50px);
    }

    .certifications-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .about-intro-section {
        padding: 50px 0;
    }

    .about-values {
        padding: 50px 0;
    }

    .about-history {
        padding: 50px 0;
    }

    .about-certifications {
        padding: 50px 0;
    }

    .timeline-year {
        left: -70px;
        width: 50px;
        height: 50px;
        font-size: 14px;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .product-list-grid {
        grid-template-columns: 1fr;
    }

    .product-list-item {
        grid-template-columns: 1fr;
    }

    .product-detail-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

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

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

    .product-content-detail {
        padding: 25px;
    }

    .product-nav-links {
        flex-direction: column;
        gap: 15px;
    }

    .product-nav-prev,
    .product-nav-next {
        max-width: 100%;
        text-align: center;
        align-items: center;
    }

    .news-content {
        grid-template-columns: 1fr;
    }

    .news-list-item {
        grid-template-columns: 1fr;
    }

    .news-detail-content {
        grid-template-columns: 1fr;
    }

    .pagination-wrapper {
        flex-direction: column;
        gap: 20px;
    }

    .pagination-nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .about-stat-box {
        padding: 18px 10px;
    }

    .about-stat-box .stat-year {
        font-size: 22px;
    }

    .about-intro-left h2 {
        font-size: 24px;
    }

    .section-subtitle {
        font-size: 11px;
    }

    .about-intro-left p {
        font-size: 14px;
        line-height: 1.7;
    }

    .vision-card {
        padding: 25px 20px;
    }

    .vision-card h3 {
        font-size: 18px;
    }

    .vision-card p {
        font-size: 13px;
    }

    .timeline {
        padding-left: 20px;
    }

    .timeline-year {
        left: -50px;
        width: 40px;
        height: 40px;
        font-size: 12px;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .product-features-grid {
        grid-template-columns: 1fr;
    }

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

    .related-products-grid {
        grid-template-columns: 1fr;
    }

    .news-list-image img {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .page-banner-content h1 {
        font-size: 28px;
    }

    .breadcrumbs {
        font-size: 12px;
    }

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

    .about-stat-number {
        font-size: 24px;
    }

    .about-stats-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .about-stat-box {
        padding: 20px 15px;
    }

    .about-intro-left h2 {
        font-size: 22px;
    }

    .about-intro-left p {
        font-size: 13px;
        line-height: 1.6;
    }

    .vision-card {
        padding: 20px 15px;
    }

    .vision-card h3 {
        font-size: 16px;
    }

    .vision-card p {
        font-size: 12px;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .about-timeline-content {
        width: calc(100% - 40px);
        padding: 20px 15px;
    }

    .about-timeline-content .about-timeline-year {
        font-size: 20px;
    }

    .about-timeline-content h4 {
        font-size: 14px;
    }

    .about-timeline-content p {
        font-size: 12px;
    }

    .certifications-grid {
        grid-template-columns: 1fr;
    }

    .certification-card img {
        height: 180px;
    }

    .timeline {
        padding-left: 0;
    }

    .timeline::before {
        display: none;
    }

    .timeline-year {
        position: static;
        width: 100%;
        border-radius: 4px;
        margin-bottom: 15px;
    }

    .product-usage-grid {
        grid-template-columns: 1fr;
    }

    .news-detail-image img {
        height: 250px;
    }
}