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

body {
    font-family: "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.8;
    color: #333;
    background: #f8f9fa;
}

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

.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #00d4ff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo .emoji {
    font-size: 32px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
}

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

nav ul li a:hover {
    background: #00d4ff;
    color: #1a1a2e;
}

.banner {
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y=".9em" font-size="90">📊</text></svg>') repeat;
    opacity: 0.05;
}

.banner h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.banner .emoji-large {
    font-size: 80px;
    margin-bottom: 30px;
    display: block;
}

.banner p {
    font-size: 20px;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.banner-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
    flex-wrap: wrap;
}

.banner-feature {
    background: rgba(255,255,255,0.1);
    padding: 25px 35px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.banner-feature .emoji {
    font-size: 40px;
    display: block;
    margin-bottom: 10px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #1a1a2e;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #00ff88);
    margin: 15px auto 0;
    border-radius: 2px;
}

.section-title .emoji {
    font-size: 40px;
    display: block;
    margin-bottom: 15px;
}

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

.product-card {
    background: #fff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #eee;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.product-card .emoji-large {
    font-size: 60px;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

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

.features-section {
    background: linear-gradient(180deg, #f8f9fa 0%, #e9ecef 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-item {
    display: flex;
    gap: 20px;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.feature-icon {
    font-size: 50px;
    flex-shrink: 0;
}

.feature-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

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

.news-section {
    background: #fff;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.news-item {
    display: flex;
    gap: 30px;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 15px;
    transition: all 0.3s;
    border-left: 5px solid #00d4ff;
}

.news-item:hover {
    background: #fff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateX(10px);
}

.news-item .emoji {
    font-size: 40px;
    flex-shrink: 0;
}

.news-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #1a1a2e;
}

.news-content h3 a {
    color: inherit;
    text-decoration: none;
}

.news-content h3 a:hover {
    color: #00d4ff;
}

.news-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-content p {
    color: #666;
    line-height: 1.8;
}

.about-section {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
}

.about-section .section-title {
    color: #fff;
}

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

.about-text p {
    font-size: 18px;
    line-height: 2;
    margin-bottom: 20px;
    opacity: 0.9;
}

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

.stat-item {
    text-align: center;
    padding: 30px;
    background: rgba(255,255,255,0.1);
    border-radius: 15px;
    border: 1px solid rgba(255,255,255,0.2);
}

.stat-item .emoji {
    font-size: 50px;
    display: block;
    margin-bottom: 15px;
}

.stat-item .number {
    font-size: 42px;
    font-weight: bold;
    color: #00d4ff;
}

.stat-item .label {
    font-size: 16px;
    opacity: 0.8;
    margin-top: 10px;
}

.contact-section {
    background: #fff;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info {
    padding: 40px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #1a1a2e;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.contact-item .emoji {
    font-size: 35px;
}

.contact-item .label {
    font-size: 14px;
    color: #999;
}

.contact-item .value {
    font-size: 18px;
    color: #1a1a2e;
    font-weight: 500;
}

.contact-form {
    padding: 40px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: #1a1a2e;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d4ff;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #00d4ff 0%, #00ff88 100%);
    color: #1a1a2e;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,212,255,0.4);
}

.footer {
    background: #1a1a2e;
    color: #fff;
    padding: 50px 0 20px;
}

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

.footer-section h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #00d4ff;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: #fff;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-section ul li a:hover {
    opacity: 1;
    color: #00d4ff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.7;
}

.page-header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

.page-header .emoji {
    font-size: 60px;
    display: block;
    margin-bottom: 20px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    padding: 15px 0;
    background: #f8f9fa;
}

.breadcrumb .container {
    font-size: 14px;
    color: #666;
}

.breadcrumb a {
    color: #00d4ff;
    text-decoration: none;
}

.content-area {
    padding: 60px 0;
    background: #fff;
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
}

.article-content h2 {
    font-size: 28px;
    color: #1a1a2e;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid #00d4ff;
}

.article-content h3 {
    font-size: 22px;
    color: #1a1a2e;
    margin: 30px 0 15px;
}

.article-content p {
    font-size: 17px;
    line-height: 2;
    margin-bottom: 20px;
    color: #444;
}

.article-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.article-content ul li {
    margin-bottom: 12px;
    font-size: 17px;
    line-height: 1.8;
}

.article-meta {
    color: #999;
    font-size: 14px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.article-meta span {
    margin-right: 20px;
}

.back-link {
    display: inline-block;
    margin-top: 40px;
    color: #00d4ff;
    text-decoration: none;
    font-size: 16px;
}

.back-link:hover {
    text-decoration: underline;
}

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

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

    .banner h1 {
        font-size: 32px;
    }

    .banner .emoji-large {
        font-size: 60px;
    }

    .banner-features {
        flex-direction: column;
        align-items: center;
    }

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

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

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

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

    .section-title {
        font-size: 28px;
    }
}