* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Microsoft YaHei',sans-serif; background:#FFFFFF; color:#000; line-height:1.7; }
.header { background:linear-gradient(90deg,#FF0000,#000000); padding:22px; position:sticky; top:0; z-index:1000; }
.header-inner { max-width:1300px; margin:0 auto; display:flex; justify-content:space-between; align-items:center; }
.logo { font-size:32px; font-weight:900; color:white; }
.nav { display:flex; gap:35px; list-style:none; }
.nav a { color:white; text-decoration:none; padding:10px 22px; border-radius:4px; font-weight:600; transition:all 0.3s; }
.nav a:hover,.nav a.active { background:rgba(255,255,255,0.2); }
.hero { padding:110px 20px; text-align:center; background:linear-gradient(135deg,#FF0000 0%,#000000 100%); color:white; }
.hero h1 { font-size:54px; margin-bottom:25px; }
.hero p { font-size:21px; max-width:750px; margin:0 auto 40px; }
.hero-btn { display:inline-block; background:white; color:#FF0000; padding:18px 50px; border-radius:8px; text-decoration:none; font-weight:bold; font-size:18px; transition:all 0.3s; }
.hero-btn:hover { transform:translateY(-3px); box-shadow:0 10px 30px rgba(0,0,0,0.2); }
.section { padding:90px 20px; }
.section-alt { background:#F5F5F5; }
.section-title { text-align:center; font-size:40px; margin-bottom:60px; color:#FF0000; }
.cards { max-width:1300px; margin:0 auto; display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:32px; }
.card { background:white; padding:45px; border-radius:12px; text-align:center; box-shadow:0 4px 20px rgba(0,0,0,0.08); transition:all 0.3s; border-left:5px solid #FF0000; }
.card:hover { transform:translateY(-10px); box-shadow:0 15px 45px rgba(0,0,0,0.12); }
.card-icon { font-size:60px; margin-bottom:22px; }
.card h3 { font-size:23px; margin-bottom:18px; color:#FF0000; }
.card p { color:#555; line-height:1.8; }
.footer { background:#000000; color:white; padding:60px 20px 30px; margin-top:75px; }
.footer-inner { max-width:1300px; margin:0 auto; }
.footer-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:50px; margin-bottom:40px; }
.footer-col h4 { font-size:21px; margin-bottom:24px; color:#FF0000; }
.footer-col a { color:#999; text-decoration:none; display:block; margin-bottom:12px; }
.footer-col a:hover { color:white; }
.copyright { text-align:center; padding-top:30px; border-top:1px solid #333; color:#666; }