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

body {
    font-family: "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

/* Navbar */
.navbar-default {
    background: rgba(255, 255, 255, 0.95);
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar-scrolled {
    background: #fff;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.navbar-brand {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50 !important;
}

.navbar-default .navbar-nav > li > a {
    color: #555;
    font-size: 15px;
    padding: 15px 20px;
    transition: color 0.3s ease;
}

.navbar-default .navbar-nav > li > a:hover,
.navbar-default .navbar-nav > .active > a {
    color: #3498db;
    background: transparent;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 180px 0 120px;
    color: #fff;
    margin-top: 50px;
}

.hero-section h1 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 20px;
}

.hero-section .lead {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-section .btn-primary {
    background: #fff;
    color: #667eea;
    border: none;
    padding: 15px 40px;
    font-size: 16px;
    border-radius: 30px;
    margin-right: 15px;
}

.hero-section .btn-primary:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

.hero-section .btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
    padding: 13px 38px;
    font-size: 16px;
    border-radius: 30px;
}

.hero-section .btn-outline:hover {
    background: #fff;
    color: #667eea;
}

/* Section Title */
.section-title {
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: #7f8c8d;
}

/* About Section */
.about-section {
    padding: 100px 0;
    background: #fff;
}

.about-section h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 20px;
}

.about-section p {
    font-size: 16px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-section img {
    max-width: 100%;
    border-radius: 10px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.feature-list li {
    padding: 8px 0;
    font-size: 16px;
    color: #555;
}

.feature-list li i {
    color: #27ae60;
    margin-right: 10px;
}

/* Services Section */
.services-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.service-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 80px;
    height: 80px;
    line-height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    margin: 0 auto 25px;
}

.service-icon i {
    font-size: 32px;
    color: #fff;
}

.service-item h4 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.service-item p {
    font-size: 14px;
    color: #7f8c8d;
    line-height: 1.7;
}

/* Team Section */
.team-section {
    padding: 100px 0;
    background: #fff;
}

.team-member {
    text-align: center;
    padding: 30px 20px;
    margin-bottom: 30px;
}

.member-avatar {
    margin-bottom: 20px;
}

.member-avatar i {
    font-size: 80px;
    color: #bdc3c7;
}

.team-member h4 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 5px;
}

.member-title {
    color: #667eea;
    font-size: 14px;
    margin-bottom: 15px;
}

.team-member p {
    font-size: 14px;
    color: #7f8c8d;
}

/* Stats Section */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

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

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.contact-item {
    text-align: center;
    padding: 40px 20px;
    background: #fff;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    font-size: 40px;
    color: #667eea;
    margin-bottom: 20px;
}

.contact-item h4 {
    font-size: 18px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.contact-item p {
    font-size: 16px;
    color: #7f8c8d;
}

/* Footer */
.site-footer {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 60px 0 20px;
}

.site-footer h4 {
    font-size: 18px;
    margin-bottom: 25px;
    color: #fff;
}

.site-footer p {
    font-size: 14px;
    line-height: 1.8;
    color: #bdc3c7;
}

.footer-links {
    list-style: none;
    padding: 0;
}

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

.footer-links a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3498db;
}

.footer-contact {
    list-style: none;
    padding: 0;
}

.footer-contact li {
    margin-bottom: 12px;
    color: #bdc3c7;
    font-size: 14px;
}

.footer-contact i {
    margin-right: 10px;
    color: #667eea;
}

.copyright {
    border-top: 1px solid #34495e;
    padding-top: 30px;
    margin-top: 40px;
}

.copyright p {
    font-size: 13px;
    color: #95a5a6;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 140px 0 80px;
    }
    
    .hero-section h1 {
        font-size: 32px;
    }
    
    .hero-section .lead {
        font-size: 16px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .stat-number {
        font-size: 36px;
    }
}