* {
    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: #f5f5f5
}

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

header {
    background: linear-gradient(135deg, #0052cc 0%, #0066ff 100%);
    color: white;
    padding: 20px 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: 28px;
    font-weight: bold;
    color: white;
    text-decoration: none
}

.logo span {
    color: #ffd700
}

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

nav a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
    padding: 8px 15px;
    border-radius: 5px
}

nav a:hover {
    background-color: rgba(255,255,255,0.2);
    color: #ffd700
}

.hero {
    background: linear-gradient(135deg, #0052cc 0%, #0066ff 50%, #00d4aa 100%);
    color: white;
    padding: 80px 0;
    text-align: center
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3)
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background-color: #ffd700;
    color: #0052cc;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2)
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3)
}

section {
    padding: 60px 0
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #0052cc;
    position: relative
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #0052cc, #00d4aa);
    margin: 15px auto 0;
    border-radius: 2px
}

.products {
    background-color: white
}

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

.product-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s;
    border: 2px solid transparent
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: #0052cc;
    box-shadow: 0 10px 30px rgba(0,82,204,0.2)
}

.product-icon {
    font-size: 48px;
    margin-bottom: 20px
}

.product-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #0052cc
}

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

.news {
    background-color: #f9f9f9
}

.news-list {
    display: grid;
    gap: 25px
}

.news-item {
    background: white;
    border-radius: 12px;
    padding: 25px 30px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    display: flex;
    gap: 25px;
    transition: all 0.3s;
    border-left: 4px solid #0052cc
}

.news-item:hover {
    box-shadow: 0 5px 25px rgba(0,0,0,0.15);
    transform: translateX(5px)
}

.news-date {
    min-width: 100px;
    text-align: center;
    padding: 15px;
    background: linear-gradient(135deg, #0052cc, #0066ff);
    color: white;
    border-radius: 10px;
    height: fit-content
}

.news-date .day {
    font-size: 32px;
    font-weight: bold;
    display: block
}

.news-date .month {
    font-size: 14px;
    opacity: 0.9
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333
}

.news-content h3 a {
    color: #0052cc;
    text-decoration: none;
    transition: color 0.3s
}

.news-content h3 a:hover {
    color: #00d4aa
}

.news-content p {
    color: #666;
    line-height: 1.7
}

.about {
    background-color: white
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #0052cc
}

.about-text p {
    color: #666;
    line-height: 1.9;
    margin-bottom: 15px
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: #f5f5f5;
    border-radius: 10px
}

.feature-item span:first-child {
    font-size: 24px
}

.about-image {
    background: linear-gradient(135deg, #0052cc, #00d4aa);
    border-radius: 20px;
    padding: 60px;
    text-align: center;
    color: white;
    font-size: 72px
}

.contact {
    background: linear-gradient(135deg, #f5f5f5, #e8e8e8)
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px
}

.contact-card {
    background: white;
    border-radius: 15px;
    padding: 35px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15)
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px
}

.contact-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #0052cc
}

.contact-card p {
    color: #666;
    line-height: 1.7
}

.advantages {
    background-color: white
}

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

.advantage-item {
    text-align: center;
    padding: 40px 25px;
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
    border-radius: 15px;
    border: 2px solid #e8e8e8;
    transition: all 0.3s
}

.advantage-item:hover {
    border-color: #0052cc;
    box-shadow: 0 8px 25px rgba(0,82,204,0.15)
}

.advantage-icon {
    font-size: 56px;
    margin-bottom: 20px
}

.advantage-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #0052cc
}

.advantage-item p {
    color: #666;
    line-height: 1.7
}

.faq {
    background-color: #f9f9f9
}

.faq-list {
    max-width: 900px;
    margin: 0 auto
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08)
}

.faq-question {
    padding: 20px 25px;
    background: linear-gradient(135deg, #0052cc, #0066ff);
    color: white;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center
}

.faq-answer {
    padding: 25px;
    color: #666;
    line-height: 1.8;
    border-top: 3px solid #00d4aa
}

footer {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
    padding: 50px 0 20px
}

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

.footer-section h3 {
    font-size: 22px;
    margin-bottom: 20px;
    color: #ffd700
}

.footer-section p,
.footer-section a {
    color: #ccc;
    line-height: 2;
    text-decoration: none;
    display: block;
    transition: color 0.3s
}

.footer-section a:hover {
    color: #ffd700
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #999;
    font-size: 14px
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px
    }

    .hero h1 {
        font-size: 32px
    }

    .about-content {
        grid-template-columns: 1fr
    }

    .news-item {
        flex-direction: column
    }
}