* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; background: #fafafa; color: #333; }
.top-bar { background: #e0e0e0; color: #555; text-align: center; padding: 8px 20px; font-size: 0.85em; display: flex; justify-content: space-between; max-width: 1100px; margin: 0 auto; }
.header { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.08); position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; padding: 0 20px; }
.logo { font-size: 1.8em; color: #666; font-weight: bold; padding: 15px 0; letter-spacing: 2px; }
.gnav { margin-left: auto; display: flex; gap: 25px; }
.gnav a { color: #888; text-decoration: none; font-size: 0.95em; transition: color 0.3s; }
.gnav a:hover { color: #333; }
.banner { background: linear-gradient(to right, #f5f5f5, #e8e8e8); padding: 80px 20px; text-align: center; position: relative; overflow: hidden; }
.banner-text h1 { font-size: 2.8em; color: #666; margin-bottom: 12px; letter-spacing: 4px; }
.banner-text p { font-size: 1.1em; color: #999; }
.banner-shapes { position: absolute; top: 0; bottom: 0; left: 0; right: 0; pointer-events: none; }
.shape { position: absolute; border-radius: 50%; opacity: 0.1; }
.s1 { width: 300px; height: 300px; background: #999; top: -100px; right: -50px; }
.s2 { width: 200px; height: 200px; background: #aaa; bottom: -80px; left: -60px; }
.s3 { width: 150px; height: 150px; background: #bbb; top: 50%; left: 30%; }
.container { max-width: 1100px; margin: 0 auto; padding: 50px 20px; }
.intro { display: flex; align-items: center; gap: 40px; margin-bottom: 60px; background: #fff; border-radius: 12px; padding: 40px; box-shadow: 0 2px 15px rgba(0,0,0,0.05); }
.intro-text h2 { color: #888; font-size: 1.8em; margin-bottom: 15px; }
.intro-text p { color: #666; line-height: 1.8; }
.intro-img { font-size: 6em; flex-shrink: 0; opacity: 0.3; }
.title-main { text-align: center; font-size: 2em; color: #888; margin-bottom: 40px; }
.product-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; margin-bottom: 60px; }
.prod { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 30px; text-align: center; transition: box-shadow 0.3s; }
.prod:hover { box-shadow: 0 5px 20px rgba(0,0,0,0.08); }
.prod-icon { font-size: 2.5em; color: #ccc; margin-bottom: 12px; }
.prod h3 { color: #888; font-size: 1.1em; margin-bottom: 8px; }
.prod p { color: #999; font-size: 0.9em; margin-bottom: 10px; }
.prod strong { color: #666; font-size: 1.1em; }
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.why-item { background: #fff; border-radius: 12px; padding: 30px; border-left: 3px solid #ccc; }
.why-item .num { font-size: 2em; color: #ddd; font-weight: bold; display: block; margin-bottom: 10px; }
.why-item h3 { color: #888; margin-bottom: 8px; }
.why-item p { color: #999; font-size: 0.9em; }
.footer { background: #f0f0f0; padding: 50px 20px 20px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 30px; margin-bottom: 30px; }
.footer-col h4 { color: #888; margin-bottom: 12px; }
.footer-col p { color: #999; font-size: 0.9em; margin-bottom: 6px; }
.footer-bottom { text-align: center; color: #aaa; font-size: 0.85em; padding-top: 20px; border-top: 1px solid #ddd; max-width: 1100px; margin: 0 auto; }
@media (max-width: 768px) { .banner-text h1 { font-size: 2em; } .intro { flex-direction: column; } .gnav { gap: 15px; } }