:root{
	--primary:#0b7a75; /* 主色调（随机选择的青绿色） */
	--bg:#f7f7f9;
	--text:#111;
	--muted:#666;
	--radius:10px;
	--container-width:1100px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
	margin:0;
	font-family:Inter, "Noto Sans Thai", Arial, sans-serif;
	background:var(--bg);
	color:var(--text);
	line-height:1.6;
}
.container{max-width:var(--container-width);margin:0 auto;padding:1rem}
.site-header{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,0.05);position:sticky;top:0;z-index:50}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:0.8rem 1rem}
.logo{font-weight:800;color:var(--primary);text-decoration:none;font-size:1.25rem}
.main-nav{display:flex;gap:1rem}
.main-nav a{color:var(--text);text-decoration:none;padding:0.4rem 0.6rem;border-radius:6px}
.main-nav a:hover{background:linear-gradient(90deg,rgba(11,122,117,0.08),transparent)}
.nav-toggle{display:none;background:none;border:none;font-size:1.25rem}
.hero{display:grid;grid-template-columns:1fr 360px;gap:1rem;align-items:center;padding:2.5rem 0;background:linear-gradient(180deg,#fff, #f2faf9)}
.hero-inner h1{font-size:2rem;margin:0 0 0.5rem}
.lead{color:var(--muted);margin-bottom:1rem}
.btn{background:var(--primary);color:#fff;padding:0.7rem 1rem;border-radius:8px;text-decoration:none;display:inline-block}
.hero-image{width:100%;max-width:420px;border-radius:12px;box-shadow:0 8px 24px rgba(11,122,117,0.08)}
.intro, .products-preview, .news{padding:2rem 0}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.product-card{background:#fff;border-radius:var(--radius);padding:0.8rem;box-shadow:0 6px 16px rgba(0,0,0,0.04);transition:transform .28s ease,box-shadow .28s ease}
.product-card:hover{transform:translateY(-6px);box-shadow:0 18px 36px rgba(0,0,0,0.08)}
.product-card img{width:100%;height:160px;object-fit:cover;border-radius:8px}
.price{color:var(--primary);font-weight:700;margin-top:0.5rem}
.more-link{margin-top:0.6rem}
.news-list{list-style:none;padding:0;margin:0}
.news-list li{padding:0.6rem 0;border-bottom:1px solid #eee}
.site-footer{background:#fff;margin-top:2rem;padding:1rem 0;border-top:1px solid #eee}
.footer-inner{display:flex;justify-content:center}

/* products */
.products-top{display:flex;flex-direction:column;gap:0.5rem;padding:1rem 0}
.filters{display:flex;gap:0.5rem;flex-wrap:wrap}
.filter-btn{background:#fff;border:1px solid #e6e6e6;padding:0.45rem 0.7rem;border-radius:8px;cursor:pointer}
.filter-btn.active{border-color:var(--primary);color:var(--primary);box-shadow:0 6px 18px rgba(11,122,117,0.06)}
.product-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;padding:1rem 0}
.product-card .desc{color:var(--muted);font-size:0.95rem}

/* about & team */
.team-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.team-member img{width:100%;height:200px;object-fit:cover;border-radius:8px}
.team-member{background:#fff;padding:0.6rem;border-radius:8px;box-shadow:0 6px 16px rgba(0,0,0,0.03)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 320px;gap:1rem}
.contact-form{background:#fff;padding:1rem;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,0.03)}
.contact-form label{display:block;margin-bottom:0.6rem}
.contact-form input,.contact-form textarea{width:100%;padding:0.6rem;border:1px solid #e6e6e6;border-radius:6px}
.contact-info{background:#fff;padding:1rem;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,0.03)}
.form-note{font-size:0.85rem;color:var(--muted);margin-top:0.6rem}

/* responsive */
@media (max-width:900px){
	.hero{grid-template-columns:1fr;gap:1rem;padding:1.2rem 0}
	.contact-grid{grid-template-columns:1fr}
	.nav-toggle{display:block}
	.main-nav{display:none;position:absolute;right:1rem;top:64px;background:#fff;padding:0.6rem;border-radius:8px;box-shadow:0 6px 18px rgba(0,0,0,0.08)}
}

/* smooth fade-in animations */
.fade-up{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.fade-up.in-view{opacity:1;transform:none}

/* small header variant */
.site-header.small .logo{font-size:1rem}