/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0056b3;
    --primary-dark: #004494;
    --secondary-color: #f8f9fa;
    --accent-color: #00a8e8;
    --text-color: #333;
    --text-light: #6c757d;
    --white: #fff;
    --light-gray: #f5f5f5;
    --border-color: #e0e0e0;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Roboto', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.8rem;
}

h2 {
    font-size: 2.2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    color: var(--primary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--accent-color);
}

.section-description {
    max-width: 700px;
    margin: 0 auto 30px;
    color: var(--text-light);
    font-size: 1.1rem;
}

.bg-light {
    background-color: var(--light-gray);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px);
}

/* Header & Navigation */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    position: relative;
}

.logo {
    display: flex；
    flex-direction: row;
    align-items: center;
    gap:16px;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
}

.logo-image {
    width: 80px;
    height: auto;
    display: block;
    transform: translateX(28px);
}

.logo-text {
    color: var(--text-color);
}

.logo-highlight {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-weight: 600;
    transition: var(--transition);
    padding: 5px 0;
    position: relative;
}

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

.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.contact-btn {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 4px;
}

.contact-btn:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 3.2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.hero-image {
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.hero-image:hover img {
    transform: scale(1.03);
}

/* Solutions Section */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.solution-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.solution-image {
    height: 220px;
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.solution-content {
    padding: 25px;
}

.solution-title {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.solution-description {
    color: var(--text-light);
    margin-bottom: 20px;
}

/* Industries Section */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.industry-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.industry-image {
    height: 220px;
    overflow: hidden;
}

.industry-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.industry-content {
    padding: 25px;
}

.industry-title {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.industry-description {
    color: var(--text-light);
    margin-bottom: 20px;
}

/* Case Studies Section */
.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-study-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.case-study-image {
    height: 220px;
    overflow: hidden;
}

.case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-study-content {
    padding: 25px;
}

.case-study-title {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.case-study-description {
    color: var(--text-light);
    margin-bottom: 20px;
}

/* Why Choose Us Section */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.benefit-card {
    text-align: center;
    padding: 30px 20px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.benefit-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.benefit-title {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.benefit-description {
    color: var(--text-light);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    align-items: start;
}

.contact-form-container {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 5px;
}

.info-item h3 {
    margin-bottom: 5px;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background-color: #222;
    color: var(--white);
    padding: 70px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-description {
    margin: 15px 0;
    color: #aaa;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-title {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

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

.footer-links a {
    color: #aaa;
    transition: var(--transition);
}

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

.contact-details p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    color: #aaa;
}

.contact-details i {
    color: var(--primary-color);
    width: 20px;
}

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

/* Page-specific styles */
.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

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

/* Solutions Page */
.solution-detail {
    margin-bottom: 80px;
    scroll-margin-top: 100px;
}

.solution-detail-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.solution-detail-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.solution-detail-text h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.solution-features {
    margin: 25px 0;
}

.solution-features li {
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* Industries Page */
.industry-detail {
    margin-bottom: 80px;
    scroll-margin-top: 100px;
}

.industry-detail-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.industry-detail-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

/* Case Studies Page */
.case-study-detail {
    margin-bottom: 80px;
    scroll-margin-top: 100px;
}

.case-study-detail-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.case-study-detail-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.case-study-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-study-results {
    background-color: var(--light-gray);
    padding: 25px;
    border-radius: 8px;
    margin-top: 30px;
}

.case-study-results h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
    align-items: center;
    margin-bottom: 80px;
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.about-mission {
    background-color: var(--light-gray);
    padding: 60px 0;
    margin-bottom: 80px;
}

.mission-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.mission-content h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    text-align: center;
    padding: 30px 20px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

.value-title {
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* Contact Page */
.contact-page {
    padding: 80px 0;
}

.contact-page-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.map-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 400px;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Responsive Styles */
@media (max-width: 992px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        width: 100%;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 15px 0;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .hero {
        padding: 80px 0 60px;
    }
    
    .hero-title {
        font-size: 2.3rem;
    }
    
    .page-header h1 {
        font-size: 2.3rem;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
}