:root {
    --primary-color: #0052D9;
    --secondary-color: #333333;
    --accent-color: #00A0E9;
    --light-bg: #f5f7fa;
    --dark-bg: #2c3e50;
    --spacing-lg: 80px;
    --spacing-md: 40px;
    --spacing-sm: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

body {
    color: var(--secondary-color);
    line-height: 1.6;
    background-color: #fff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0;
}

/* ͷ������ */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    height: 45px;
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    margin-left: 10px;
}

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

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

.nav-menu a {
    font-size: 16px;
    font-weight: 500;
    padding: 10px 0;
    display: block;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.nav-actions {
    display: flex;
    align-items: center;
}

.btn {
    display: inline-block;
    padding: 10px 10px;
    background: var(--primary-color);
    color: white;
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn:hover {
    background: #003cb0;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.carousel-caption h2 {
    margin-bottom: 10px;
    font-size: 32px;
}

.carousel-caption p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}


.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.section-title h2 {
    font-size: 36px;
    color: var(--secondary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.section-title p {
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.company-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.company-text p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
}


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

.product-content h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.product-content p {
    margin-bottom: 20px;
}


.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
}

.footer-col h4:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 40px;
    height: 2px;
    background: var(--primary-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.contact-info {
    width: 500px;
    margin-top: 20px;
}

.contact-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.contact-info i {
    margin-right: 10px;
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ��Ӧʽ��� */
@media (max-width: 992px) {
    .company-info {
        grid-template-columns: 1fr;
    }

    .timeline:before {
        left: 30px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 20px;
        left: 0 !important;
    }

    .timeline-item:nth-child(odd) .timeline-content:after,
    .timeline-item:nth-child(even) .timeline-content:after {
        left: -10px;
        right: auto;
    }

    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 20px;
        right: auto;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .carousel-caption h2 {
        font-size: 24px;
    }

    .carousel-caption p {
        font-size: 16px;
    }

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

    .section-title h2 {
        font-size: 28px;
    }
}
:root {
    --primary-blue: #1a56db;
    --secondary-blue: #0c45c7;
    --dark-blue: #1a237e;
    --light-blue: #e6f0ff;
    --text-dark: #333;
    --text-gray: #666;
    --text-light: #fff;
    --background-light: #f8f9fa;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

body {
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--background-light);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ͷ���͵��� */
header {
    background: var(--text-light);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 20px;
}

.logo-text {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary-blue);
    margin-left: 10px;
}

.nav-links {
    display: flex;
}

.nav-links li {
    margin: 0 15px;
    position: relative;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 5px 0;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-blue);
}

.nav-links a.active {
    color: var(--primary-blue);
    border-bottom: 2px solid var(--primary-blue);
}

.nav-buttons {
    display: flex;
    align-items: center;
}

.btn {
    padding: 8px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
    display: inline-block;
}

.btn-outline {
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    margin-right: 15px;
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--text-light);
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--text-light);
}

.btn-primary:hover {
    background: var(--secondary-blue);
}

/* Ӣ������ */
.hero {
    background: linear-gradient(120deg, var(--primary-blue), var(--secondary-blue));
    color: var(--text-light);
    padding: 100px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(-15deg);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.hero-buttons .btn {
    padding: 12px 30px;
    font-size: 1.1rem;
}

.btn-white {
    background: var(--text-light);
    color: var(--primary-blue);
}

.btn-white:hover {
    background: #f0f0f0;
}

.btn-transparent {
    background: transparent;
    border: 1px solid var(--text-light);
    color: var(--text-light);
}

.btn-transparent:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ��Ʒ���� */
.features {
    padding: 80px 0;
    background: var(--text-light);
}

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

.section-title h2 {
    font-size: 2.2rem;
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.section-title p {
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
}

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

.feature-card {
    background: var(--background-light);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

/* ������� */
.solutions {
    padding: 20px 0;
    background: var(--background-light);
}

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

.solution-card {
    background: var(--text-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.solution-img {
    height: 200px;
    background: linear-gradient(45deg, var(--primary-blue), var(--secondary-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 3rem;
}

.solution-content {
    padding: 25px;
}

.solution-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-blue);
}

/* �ͻ����� */
.cases {
    padding: 80px 0;
    background: var(--text-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.case-item {
    background: var(--background-light);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    transition: all 0.3s;
}

.case-item:hover {
    background: var(--primary-blue);
    color: var(--text-light);
    transform: scale(1.05);
}

/* �������� */
.tech {
    padding: 80px 0;
    background: linear-gradient(120deg, var(--dark-blue), var(--primary-blue));
    color: var(--text-light);
}

.tech-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tech-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.tech-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    backdrop-filter: blur(5px);
}

.tech-card i {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: #4ade80;
}

/* CTA���� */
.cta {
    background: linear-gradient(120deg, var(--primary-blue), var(--secondary-blue));
    color: var(--text-light);
    padding: 80px 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.cta p {
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

/* �ײ� */
footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: 60px 0 30px;
}

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

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-blue);
}

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

.footer-links a {
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
    color: #4ade80;
}

.footer-bottom {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* ��Ӧʽ��� */
@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

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

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

    .tech-cards {
        grid-template-columns: 1fr;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

/* ��Ʒ�������� */
.products {
    padding: 40px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    color: #0066cc;
    position: relative;
}

.section-title:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #0066cc;
    margin: 15px auto;
}

.product-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
}

.product-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    flex: 1;
    min-width: 200px;
    max-width: 300px;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-header {
    background: #0066cc;
    color: white;
    padding: 20px;
    text-align: center;
}

.product-header h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.product-body {
    padding: 25px;
}

.product-intro {
    margin-bottom: 20px;
    color: #666;
}

.product-features h4 {
    color: #0066cc;
    margin-bottom: 15px;
    font-size: 18px;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
}

.feature-list li:before {
    content: '*';
    color: #28a745;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.product-cta {
    text-align: center;
    margin-top: 25px;
}

.btn {
    display: inline-block;
    background: #0066cc;
    color: white;
    padding: 12px 25px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn:hover {
    background: #0052a3;
    box-shadow: 0 5px 15px rgba(0, 102, 204, 0.3);
}

/* ��Ʒ�Ƚ����� */
.comparison {
    padding: 60px 0;
    background: #eef5ff;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.comparison-table th, .comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background: #0066cc;
    color: white;
    font-weight: 500;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover {
    background: #f9f9f9;
}