* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif; color: #333; background: #f8f9fb; line-height: 1.8; }
a { text-decoration: none; color: inherit; transition: color 0.3s; }
a:hover { color: #1652f0; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.06); position: sticky; top: 0; z-index: 999; }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 72px; }
.logo { font-size: 26px; font-weight: 700; color: #1652f0; display: flex; align-items: center; gap: 8px; }
.logo span { font-size: 28px; }
.nav { display: flex; gap: 36px; }
.nav a { font-size: 16px; color: #333; font-weight: 500; position: relative; padding: 4px 0; }
.nav a:hover, .nav a.active { color: #1652f0; }
.nav a.active::after { content: ""; position: absolute; bottom: -6px; left: 0; right: 0; height: 3px; background: #1652f0; border-radius: 2px; }

.hero { background: linear-gradient(135deg, #0a1e3f 0%, #1652f0 60%, #00c6ff 100%); color: #fff; padding: 80px 0 100px; text-align: center; }
.hero h1 { font-size: 44px; margin-bottom: 20px; line-height: 1.4; }
.hero p { font-size: 20px; opacity: 0.92; max-width: 760px; margin: 0 auto 36px; }
.hero .btn-group { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 14px 40px; border-radius: 50px; font-size: 17px; font-weight: 600; transition: all 0.3s; cursor: pointer; border: none; }
.btn-primary { background: #fff; color: #1652f0; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(255,255,255,0.3); color: #1652f0; }
.btn-outline { background: transparent; color: #fff; border: 2px solid #fff; }
.btn-outline:hover { background: #fff; color: #1652f0; }

.section { padding: 70px 0; }
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-size: 36px; color: #0a1e3f; margin-bottom: 12px; }
.section-title p { font-size: 17px; color: #666; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 30px; }
.feature-card { background: #fff; border-radius: 16px; padding: 40px 30px; text-align: center; box-shadow: 0 4px 20px rgba(0,0,0,0.06); transition: all 0.3s; border: 1px solid #eef1f6; }
.feature-card:hover { transform: translateY(-6px); box-shadow: 0 12px 35px rgba(22,82,240,0.12); }
.feature-card .icon { font-size: 52px; margin-bottom: 20px; }
.feature-card h3 { font-size: 22px; color: #0a1e3f; margin-bottom: 14px; }
.feature-card p { font-size: 15px; color: #666; line-height: 1.9; }

.products-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.product-card { background: #fff; border-radius: 16px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.06); transition: all 0.3s; }
.product-card:hover { transform: translateY(-6px); box-shadow: 0 12px 35px rgba(0,0,0,0.1); }
.product-card .img-box { height: 220px; overflow: hidden; background: #eef1f6; }
.product-card .img-box img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.product-card:hover .img-box img { transform: scale(1.06); }
.product-card .body { padding: 28px; }
.product-card h3 { font-size: 22px; color: #0a1e3f; margin-bottom: 12px; }
.product-card p { font-size: 15px; color: #666; margin-bottom: 16px; }
.tag { display: inline-block; padding: 4px 14px; background: #e8f0ff; color: #1652f0; border-radius: 20px; font-size: 13px; margin-right: 8px; }

.news-list { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.news-item { background: #fff; border-radius: 14px; padding: 28px; box-shadow: 0 3px 15px rgba(0,0,0,0.05); transition: all 0.3s; border-left: 4px solid #1652f0; }
.news-item:hover { transform: translateX(6px); box-shadow: 0 6px 25px rgba(22,82,240,0.1); }
.news-item .time { font-size: 14px; color: #999; margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.news-item h3 { font-size: 20px; color: #0a1e3f; margin-bottom: 12px; }
.news-item h3 a { color: inherit; }
.news-item p { font-size: 15px; color: #666; }

.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-text h2 { font-size: 32px; color: #0a1e3f; margin-bottom: 20px; }
.about-text p { font-size: 16px; color: #555; margin-bottom: 16px; }
.about-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 30px; }
.stat-box { text-align: center; }
.stat-box .num { font-size: 32px; font-weight: 700; color: #1652f0; }
.stat-box .label { font-size: 14px; color: #888; }

.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info h3 { font-size: 24px; color: #0a1e3f; margin-bottom: 24px; }
.contact-info li { font-size: 16px; color: #555; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.contact-info li span { font-size: 22px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 14px 18px; border: 1px solid #ddd; border-radius: 10px; font-size: 15px; margin-bottom: 18px; font-family: inherit; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: #1652f0; }
.contact-form textarea { resize: vertical; min-height: 130px; }

.footer { background: #0a1e3f; color: #b0bccc; padding: 60px 0 30px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-col h4 { color: #fff; font-size: 18px; margin-bottom: 20px; }
.footer-col li { margin-bottom: 10px; font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-col p { font-size: 14px; line-height: 1.9; }
.footer-bottom { text-align: center; border-top: 1px solid #1a2f50; padding-top: 25px; font-size: 14px; }
.footer-links { margin-bottom: 12px; }
.footer-links a { margin: 0 8px; }

.breadcrumb { background: #eef1f6; padding: 20px 0; font-size: 14px; }
.breadcrumb a { color: #1652f0; }
.breadcrumb span { margin: 0 8px; color: #999; }

.news-detail { background: #fff; border-radius: 14px; padding: 40px; box-shadow: 0 3px 15px rgba(0,0,0,0.05); }
.news-detail h1 { font-size: 32px; color: #0a1e3f; margin-bottom: 16px; }
.news-detail .meta { color: #999; font-size: 14px; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid #eee; }
.news-detail p { font-size: 16px; color: #444; margin-bottom: 20px; text-indent: 2em; }
.news-detail h2 { font-size: 24px; color: #0a1e3f; margin: 30px 0 16px; }

.banner-inner { background: linear-gradient(135deg, #0a1e3f 0%, #1652f0 100%); color: #fff; padding: 60px 0; text-align: center; }
.banner-inner h1 { font-size: 38px; margin-bottom: 12px; }
.banner-inner p { font-size: 18px; opacity: 0.9; }

.content-block { background: #fff; border-radius: 14px; padding: 40px; margin-bottom: 30px; box-shadow: 0 3px 15px rgba(0,0,0,0.05); }
.content-block h2 { font-size: 26px; color: #0a1e3f; margin-bottom: 20px; border-left: 5px solid #1652f0; padding-left: 16px; }
.content-block h3 { font-size: 20px; color: #0a1e3f; margin: 24px 0 14px; }
.content-block p { font-size: 16px; color: #555; margin-bottom: 16px; }
.content-block ul { margin: 16px 0 16px 20px; }
.content-block li { font-size: 16px; color: #555; margin-bottom: 10px; list-style: disc; }

.keyword-cloud { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.keyword-cloud a { padding: 6px 18px; background: #eef1f6; border-radius: 20px; font-size: 14px; color: #1652f0; }

@media (max-width: 768px) {
  .nav { display: none; }
  .hero h1 { font-size: 30px; }
  .news-list, .about-content, .contact-wrap, .footer-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}