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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa
}

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

header {
    background: linear-gradient(135deg, #1a237e 0%, #283593 100%);
    color: white;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1)
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px
}

.logo-icon {
    font-size: 32px
}

nav ul {
    list-style: none;
    display: flex;
    gap: 30px
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 4px
}

nav a:hover {
    background-color: rgba(255,255,255,0.2)
}

.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    text-align: center
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2)
}

.hero p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.95
}

.hero-emoji {
    font-size: 64px;
    margin-bottom: 20px
}

section {
    padding: 60px 0
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 40px;
    color: #1a237e;
    position: relative
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    margin: 15px auto 0;
    border-radius: 2px
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15)
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 15px
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: #1a237e
}

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

.products-section {
    background: white
}

.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px
}

.product-item {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 30px;
    border-radius: 12px;
    border-left: 4px solid #667eea
}

.product-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #1a237e;
    display: flex;
    align-items: center;
    gap: 10px
}

.product-item ul {
    list-style: none;
    padding-left: 0
}

.product-item li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 20px
}

.product-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #667eea;
    font-weight: bold
}

.news-section {
    background: #f5f7fa
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px
}

.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s ease
}

.news-card:hover {
    transform: translateY(-3px)
}

.news-date {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500
}

.news-content {
    padding: 20px
}

.news-content h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #1a237e;
    line-height: 1.4
}

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

.about-section {
    background: white
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #1a237e
}

.about-text p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.8
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: #f5f7fa;
    border-radius: 8px
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #667eea;
    display: block
}

.stat-label {
    color: #666;
    font-size: 14px;
    margin-top: 5px
}

.contact-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white
}

.contact-section .section-title {
    color: white
}

.contact-section .section-title::after {
    background: white
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px
}

.contact-item {
    background: rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px)
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 15px
}

.contact-item h3 {
    font-size: 20px;
    margin-bottom: 10px
}

.contact-item p {
    opacity: 0.9;
    font-size: 14px
}

.advantages {
    background: #f5f7fa
}

.advantage-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px
}

.advantage-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    display: flex;
    align-items: flex-start;
    gap: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06)
}

.advantage-emoji {
    font-size: 36px;
    flex-shrink: 0
}

.advantage-text h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #1a237e
}

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

footer {
    background: #1a237e;
    color: white;
    padding: 40px 0 20px;
    text-align: center
}

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

.footer-column h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #fff
}

.footer-column ul {
    list-style: none
}

.footer-column a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    display: block;
    padding: 5px 0;
    transition: color 0.3s
}

.footer-column a:hover {
    color: white
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    font-size: 14px;
    opacity: 0.8
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px
    }
    
    .hero h1 {
        font-size: 32px
    }
    
    .about-content {
        grid-template-columns: 1fr
    }
    
    .section-title {
        font-size: 28px
    }
}