:root{
	--primary:#FF6B6B; /* 主色调（随机） */
	--accent:#4ECDC4;
	--muted:#6c7a89;
	--bg:#ffffff;
	--max-w:1100px;
	--radius:10px;
	--gap:1.2rem;
	--transition:300ms;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
	margin:0;
	font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
	color:#222;
	background:linear-gradient(180deg,#fff 0%, #fbfbfd 100%);
	line-height:1.5;
}
.container{max-width:var(--max-w);margin:0 auto;padding:1rem}
.site-header{background:rgba(255,255,255,0.9);backdrop-filter:saturate(120%) blur(4px);position:sticky;top:0;z-index:50;border-bottom:1px solid #eee}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:0.8rem 0}
.brand{font-weight:700;color:var(--primary);text-decoration:none;font-size:1.05rem}
.main-nav{display:flex;gap:1rem;align-items:center}
.main-nav .nav-link{color:#333;text-decoration:none;padding:0.3rem 0.6rem;border-radius:6px}
.main-nav .cta{background:var(--primary);color:#fff;padding:0.5rem 0.8rem}
.menu-toggle{display:none;background:none;border:0;font-size:1.2rem}

.hero{padding:3rem 0}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:2rem;align-items:center}
.hero h1{font-size:2rem;margin:0 0 0.5rem}
.lead{color:var(--muted);margin-bottom:1rem}
.btn{display:inline-block;text-decoration:none;padding:0.6rem 1rem;border-radius:8px;transition:all var(--transition)}
.btn.primary{background:var(--primary);color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.btn.small{padding:0.4rem 0.6rem;font-size:0.9rem}
.hero-media img{width:100%;border-radius:12px;box-shadow:0 6px 20px rgba(0,0,0,0.08)}

.intro h2,.core-products h2,.news h2{margin-top:0}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.product-card,.product{background:#fff;padding:1rem;border-radius:var(--radius);box-shadow:0 6px 18px rgba(30,30,30,0.04);transition:transform var(--transition);overflow:hidden}
.product-card:hover,.product:hover{transform:translateY(-6px)}
.product-card img,.product img{width:100%;height:160px;object-fit:cover;border-radius:8px;margin-bottom:0.6rem}
.tagline{color:var(--muted);margin:0.4rem 0 0.8rem}
.news-item{background:#fff;padding:1rem;border-radius:8px;margin-bottom:0.6rem}

.site-footer{border-top:1px solid #eee;padding:1.2rem 0;margin-top:2rem;background:transparent}
.footer-grid{display:flex;gap:2rem;align-items:flex-start;justify-content:space-between}
.copyright{text-align:center;padding:1rem 0;color:var(--muted)}

.filters{display:flex;gap:0.5rem;padding:1rem 0}
.filter-btn{padding:0.5rem 0.8rem;border-radius:8px;border:1px solid #eee;background:#fff;cursor:pointer}
.filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

.contact-grid{display:grid;grid-template-columns:1fr 360px;gap:2rem;align-items:start}
.contact-form label{display:block;margin-bottom:0.8rem}
.contact-form input,.contact-form textarea{width:100%;padding:0.6rem;border-radius:8px;border:1px solid #ddd}
.contact-form .note{color:var(--muted);font-size:0.9rem;margin-top:0.6rem}

.team-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.team-member img{width:100%;height:160px;object-fit:cover;border-radius:8px}

/* Responsive */
@media (max-width:900px){
	.hero-grid{grid-template-columns:1fr}
	.product-grid{grid-template-columns:repeat(2,1fr)}
	.contact-grid{grid-template-columns:1fr}
	.menu-toggle{display:block}
	.main-nav{display:none}
}
@media (max-width:560px){
	.product-grid{grid-template-columns:1fr}
	.team-grid{grid-template-columns:1fr}
}

/* Small utility & animations */
.reveal{opacity:0;transform:translateY(10px);transition:opacity 520ms ease, transform 520ms ease}
.reveal.visible{opacity:1;transform:none}
.small{font-size:0.9rem;color:var(--muted)}