* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; line-height: 1.6; color: #333; background: #f8f9fa; }
.header { background: white; box-shadow: 0 2px 10px rgba(0,0,0,0.08); padding: 15px 20px; position: sticky; top: 0; z-index: 100; }
.header .inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; }
.header .logo { font-size: 22px; font-weight: 700; color: #2563eb; }
.header .nav { display: flex; gap: 35px; align-items: center; }
.header .nav a { color: #333; text-decoration: none; font-size: 16px; font-weight: 500; transition: all 0.3s; padding: 10px 15px; border-radius: 8px; }
.header .nav a:hover { color: #fff;background: #2563eb; }
.header .nav a.active { color: #fff;font-weight: 700;background: #2563eb;border-bottom: 3px solid #2563eb; }
.header .mobile-nav a.active { color: #2563eb; font-weight: 600; }
.header .menu-toggle { display: none; font-size: 20px; background: none; border: none; color: #2563eb; cursor: pointer; }
.header .mobile-nav { display: none; }
.header .mobile-nav.active { display: block; background: white; border-top: 1px solid #eee; padding: 15px 20px; }
.header .mobile-nav a { display: block; padding: 12px 0; color: #666; text-decoration: none; border-bottom: 1px solid #f0f0f0; }
.header .mobile-nav a:last-child { border-bottom: none; }
.header .mobile-nav a:hover { color: #2563eb; }
.hero { background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 50%, #7c3aed 100%); color: white; padding: 80px 20px; text-align: center; }
.hero h1 { font-size: 36px; margin-bottom: 16px; font-weight: 700; }
.hero h1 a { color: white; text-decoration: none; }
.hero p { font-size: 16px; opacity: 0.9; max-width: 600px; margin: 0 auto; margin-bottom: 30px; }
.hero .btn { display: inline-block; padding: 14px 36px; background: white; color: #2563eb; text-decoration: none; border-radius: 30px; font-weight: 600; transition: all 0.3s; }
.hero .btn:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,0.25); }
.container { max-width: 1200px; margin: 0 auto; padding: 40px 20px; }
.service-card .icon.alipay { background: #1677ff; color: white; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: bold; }
.service-card .icon.baidu { background: #2319dc; color: white; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: bold; }
.services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; margin-bottom: 50px; }
.service-card { background: white; border-radius: 12px; padding: 30px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: transform 0.3s, box-shadow 0.3s; }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
.service-card .icon-wrap { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.service-card .icon { font-size: 28px; }
.service-card h3 { color: #333; margin-bottom: 10px; font-size: 18px; }
.service-card p { color: #666; font-size: 14px; line-height: 1.6; }
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 50px; }
.feature-item { background: white; border-radius: 10px; padding: 25px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.feature-item .icon-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.feature-item .icon { font-size: 24px; color: #2563eb; }
.feature-item h4 { color: #333; margin-bottom: 8px; font-size: 14px; }
.feature-item p { color: #888; font-size: 13px; }
.about { background: white; border-radius: 12px; padding: 40px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); margin-bottom: 50px; }
.about h2 { color: #333; margin-bottom: 20px; font-size: 24px; }
.about p { color: #666; line-height: 1.8; margin-bottom: 15px; }
.cases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 50px; }
.case-card { background: white; border-radius: 10px; overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.case-card img { width: 100%; background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%); object-fit: cover; }
.case-card .info { padding: 15px; }
.case-card h4 { color: #333; margin-bottom: 5px; font-size: 14px; }
.case-card p { color: #888; font-size: 12px; }
.contact-section { background: white; color: #333; border-radius: 12px; padding: 40px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); margin-bottom: 30px; }
.contact-section h2 { margin-bottom: 30px; font-size: 24px; text-align: center; }
.contact-section .contact-content { display: flex; justify-content: center; align-items: center; gap: 100px; }
.contact-section .contact-qrcode { text-align: center; }
.contact-section .qrcode-box { width: 260px; height: 260px; background: #f8fafc; padding: 12px; border-radius: 12px; margin: 0 auto 15px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.contact-section .qrcode-box img { width: 100%; height: 100%; border-radius: 8px; }
.contact-section .contact-qrcode p { font-size: 14px; opacity: 0.9; }
.contact-section .contact-info { display: flex; flex-direction: column; gap: 15px; }
.contact-section .info-item { display: flex; align-items: center; gap: 12px; font-size: 15px; }
.contact-section .info-item .icon { font-size: 18px; }
.contact-btn { display: inline-block; padding: 14px 36px; background: white; color: #2563eb; text-decoration: none; border-radius: 30px; font-weight: 600; transition: all 0.3s; }
.contact-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,0.25); }
.related-services { background: white; border-radius: 12px; padding: 30px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); margin-bottom: 30px; }
.related-services h2 { text-align: center; color: #333; margin-bottom: 8px; font-size: 22px; font-weight: 700; }
.related-services .subtitle { text-align: center; color: #666; font-size: 16px; max-width: 600px; margin: 0 auto 24px; line-height: 1.6; }
.related-grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 768px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
.rk-card { background: #f9fafb; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.rk-card-header { padding: 16px; background: #2563eb; }
.rk-card-header h3 { color: white; font-size: 18px; font-weight: 700; line-height: 1.4; margin: 0; }
.rk-card-body { padding: 20px; }
.rk-card-body p { color: #666; font-size: 14px; line-height: 1.6; margin-bottom: 16px; }
.rk-card-btn { text-align: center; }
.rk-card-btn a { display: inline-block; color: white; background: #d32f2f; padding: 10px 24px; border-radius: 999px; font-weight: 700; font-size: 14px; text-decoration: none; transition: opacity 0.3s; }
.rk-card-btn a:hover { opacity: 0.85; }
.footer { background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%); color: white; padding: 40px 20px; text-align: center; margin-top: 30px; }
.footer-slogan { max-width: 600px; margin: 0 auto 20px; padding: 15px 20px; background: rgba(255, 255, 255, 0.15); border-radius: 8px; line-height: 1.6; font-size: 15px; }
.footer-copyright { font-size: 15px; font-weight: 600; margin-bottom: 12px; }
.footer-disclaimer { font-size: 13px; opacity: 0.85; margin-bottom: 15px; }
.footer-icp { font-size: 13px; }
.footer-icp a { color: white; text-decoration: none; }
.footer-icp a:hover { text-decoration: none; }
.footer-links { background: #f8fafc; padding: 30px 20px; }
.footer-links .container { max-width: 1200px; margin: 0 auto; }
.footer-links h3 { color: #333; margin-bottom: 20px; font-size: 18px; font-weight: 600; }
.footer-links .links-wrap { display: flex; flex-wrap: wrap; gap: 12px; }
.footer-links .links-wrap a { color: #666; text-decoration: none; font-size: 14px; padding: 8px 16px; background: white; border-radius: 6px; transition: all 0.3s; border: 1px solid #e5e7eb; }
.footer-links .links-wrap a:hover { background: #2563eb; color: white; border-color: #2563eb; }
.reviews-section { background: white; border-radius: 12px; padding: 40px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); margin-bottom: 30px; }
.reviews-section h2 { text-align: center; color: #333; margin-bottom: 30px; font-size: 24px; }
.reviews-container { display: grid; grid-template-columns: 1fr; gap: 20px; }
.review-item { display: flex; gap: 15px; padding: 20px; background: #f8fafc; border-radius: 10px; }
.review-item .avatar { width: 50px; height: 50px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; font-weight: 600; font-size: 16px; flex-shrink: 0; }
.review-item .content { flex: 1; }
.review-item .name { font-weight: 600; color: #333; margin-bottom: 8px; font-size: 14px; }
.review-item .stars { color: #fbbf24; font-size: 14px; margin-bottom: 8px; }
.review-item .text { color: #666; font-size: 14px; line-height: 1.6; }
.review-item .hot { font-size: 18px; }
@media (max-width: 768px) {
    .header .nav { display: none; }
    .header .menu-toggle { display: block; background: none; border: 1px solid #2563eb; color: #2563eb; padding: 8px 12px; border-radius: 6px; cursor: pointer;outline:none }
    .hero h1 { font-size: 26px; }
    .hero p { font-size: 14px; }
    .hero .btn { padding: 12px 28px; font-size: 14px; }
    .container { padding: 25px 15px; }
    .services { grid-template-columns: repeat(2, 1fr); gap: 18px; }
    .service-card { padding: 22px; }
    .features { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .feature-item { padding: 20px; }
    .cases { grid-template-columns: repeat(2, 1fr); gap: 15px; }
    .case-card img { height: 160px; }
    .about { padding: 25px; }
    .about h2 { font-size: 20px; }
    .contact-section { padding: 35px 20px; }
    .contact-section h2 { font-size: 20px; }
    .contact-section .contact-content { flex-direction: column; gap: 30px; }
    .contact-btn { padding: 12px 28px; }
    .related-services { padding: 20px; }
    .related-services h2 { font-size: 20px; }
    .footer { padding: 30px 15px; }
    .footer-slogan { font-size: 14px; padding: 12px 15px; }
}
@media (max-width: 480px) {
    .header .logo { font-size: 18px; }
    .hero { padding: 50px 15px; }
    .hero h1 { font-size: 22px; }
    .hero p { font-size: 13px; }
    .container { padding: 20px 10px; }
    .services { grid-template-columns: 1fr; gap: 15px; }
    .service-card { padding: 20px; }
    .features { grid-template-columns: 1fr; gap: 12px; }
    .cases { grid-template-columns: 1fr; gap: 12px; }
    .case-card img { height: 140px; }
    .about { padding: 20px; }
    .about p { font-size: 14px; }
    .contact-section { padding: 25px 15px; }
    .related-services { padding: 16px; }
    .related-services h2 { font-size: 18px; }
    .rk-card-header h3 { font-size: 16px; }
    .footer { padding: 25px 10px; }
    .footer-slogan { font-size: 13px; }
}