*{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#B08D57;--primary-dark:#96753E;--primary-light:#C9A76B;
  --dark:#333;--dark-2:#444;--gray-1:#555;--gray-2:#888;--gray-3:#aaa;--gray-4:#ddd;--gray-5:#f5f3f0;
  --cream:#FAF8F5;--cream-2:#F3EFE8;--white:#FAF8F5;
  --font-heading:'Playfair Display',Georgia,serif;
  --font-body:'Inter',sans-serif;
  --shadow-sm:0 2px 10px rgba(0,0,0,0.05);
  --shadow-md:0 4px 20px rgba(0,0,0,0.07);
  --shadow-lg:0 8px 36px rgba(0,0,0,0.10);
  --radius:8px;--radius-lg:12px;--transition:0.3s cubic-bezier(0.4,0,0.2,1);
  --max-width:1240px
}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--dark);background:#fff;line-height:1.65;font-size:16px}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
ul{list-style:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-sm{padding:60px 0}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius);
  font-size:15px;font-weight:600;letter-spacing:0.02em;transition:all var(--transition);cursor:pointer;border:none
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-secondary{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-secondary:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-lg{padding:16px 40px;font-size:16px}
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:14px 0;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:all var(--transition)}
.navbar.scrolled{border-bottom-color:var(--gray-4);box-shadow:0 2px 20px rgba(0,0,0,0.06)}
.nav-container{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo a{display:flex;align-items:center;gap:12px}
.logo-mark{width:40px;height:40px;background:var(--primary);color:#fff;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;letter-spacing:0.05em}
.logo-text{display:flex;flex-direction:column}
.logo-cn{font-size:14px;font-weight:700;color:var(--dark);letter-spacing:0.08em}
.logo-en{font-size:10px;color:var(--gray-2);letter-spacing:0.05em}
.nav-menu{display:flex;gap:4px}
.lang-switcher{display:flex;align-items:center;gap:4px;margin-left:8px;padding-left:12px;border-left:1px solid var(--gray-4)}
.lang-btn{background:none;border:1px solid transparent;padding:4px 8px;font-size:12px;font-weight:600;color:var(--gray-2);border-radius:4px;cursor:pointer;transition:all var(--transition);font-family:var(--font-body)}
.lang-btn:hover{color:var(--primary)}
.lang-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.nav-menu a{padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;color:var(--gray-1);transition:all var(--transition)}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary);background:rgba(176,141,87,0.08)}
.nav-social{display:flex;gap:8px}
.nav-social-btn{width:36px;height:36px;border-radius:50%;background:var(--gray-5);display:flex;align-items:center;justify-content:center;color:var(--gray-1);font-size:15px;transition:all var(--transition)}
.nav-social-btn:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.nav-social-wa{background:#25D366!important;color:#fff!important}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{width:24px;height:2px;background:var(--dark);border-radius:2px;transition:var(--transition)}
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:linear-gradient(170deg,#fff 0%,var(--cream) 30%,var(--cream-2) 70%,var(--cream-2) 100%);overflow:hidden;padding-top:72px}
.hero-content{position:relative;z-index:2;padding:100px 0 80px}
.hero h1{font-family:var(--font-heading);font-size:clamp(42px,6vw,72px);font-weight:700;line-height:1.15;margin-bottom:24px}
.hero h1 .highlight{color:var(--primary)}
.hero-subtitle{font-size:17px;color:var(--gray-2);line-height:1.8;margin-bottom:40px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.btn-quote-hero{font-weight:600;font-size:15px;color:var(--primary);padding:14px 28px;border:2px solid var(--primary);border-radius:var(--radius);transition:all var(--transition)}
.btn-quote-hero:hover{background:var(--primary);color:#fff}
.page-hero{background:linear-gradient(135deg,var(--cream),var(--cream-2));padding:120px 0 60px;text-align:center;border-bottom:1px solid var(--gray-4)}
.page-hero h1{font-family:var(--font-heading);font-size:clamp(32px,4vw,48px);font-weight:700;margin-bottom:12px}
.page-hero p{color:var(--gray-2);font-size:16px;max-width:600px;margin:0 auto}
.breadcrumb{font-size:13px;color:var(--gray-3);margin-bottom:16px}
.breadcrumb a{color:var(--primary)}
.features-strip{padding:40px 0;background:var(--cream-2)}
.advantage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.advantage-card{padding:32px 28px;border-right:1px solid var(--gray-4)}
.advantage-card:last-child{border-right:none}
.advantage-num{font-family:var(--font-heading);font-size:42px;font-weight:700;color:var(--primary);opacity:0.3;margin-bottom:8px;line-height:1}
.advantage-card h3{font-family:var(--font-heading);font-size:18px;margin-bottom:10px;color:var(--dark)}
.advantage-card p{font-size:14px;color:var(--gray-2);line-height:1.6}
.section h2{font-family:var(--font-heading);font-size:clamp(28px,3.5vw,38px);font-weight:700;color:var(--dark);margin-bottom:16px}
.section-title-underline{display:block;width:60px;height:3px;background:var(--primary);margin:0}
.product-cards{display:grid;grid-template-columns:1fr;gap:28px}
.product-card-enhanced{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#fff;border:1px solid var(--gray-4);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition)}
.product-card-enhanced:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.product-card-enhanced.featured{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}
.product-img{position:relative;min-height:300px;background:var(--cream);display:flex;align-items:center;justify-content:center}
.product-img img{width:100%;height:100%;object-fit:contain;padding:20px}
.product-info{padding:32px}
.product-tag{display:inline-block;padding:4px 14px;background:rgba(176,141,87,0.1);color:var(--primary);font-size:12px;font-weight:600;border-radius:20px;margin-bottom:12px;letter-spacing:0.04em}
.product-info h3{font-family:var(--font-heading);font-size:22px;font-weight:700;color:var(--dark);margin-bottom:8px}
.product-chinese{font-size:13px;color:var(--gray-2);margin-bottom:12px}
.product-info p{font-size:14px;color:var(--gray-1);line-height:1.6;margin-bottom:16px}
.product-spec-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;font-size:13px;color:var(--gray-2)}
.product-spec-row i{color:var(--primary);font-size:13px;width:18px}
.product-link{font-size:14px;color:var(--primary);font-weight:600}
.product-link:hover{text-decoration:underline}
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-content h2{font-family:var(--font-heading);font-size:clamp(28px,3vw,36px);font-weight:700;color:var(--dark)}
.about-content p{font-size:15px;color:var(--gray-1);line-height:1.7;margin-bottom:16px}
.about-values{margin-bottom:24px}
.value-item{display:flex;align-items:center;gap:12px;margin-bottom:12px;font-size:15px;color:var(--gray-1)}
.value-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);flex-shrink:0}
.contact-layout{display:grid;grid-template-columns:2fr 1fr;gap:48px}
.contact-form-wrap h2{font-family:var(--font-heading);font-size:30px;margin-bottom:8px;color:var(--dark)}
.form-desc{color:var(--gray-2);font-size:14px;margin-bottom:24px}
.contact-form{display:flex;flex-direction:column;gap:20px}
.form-row.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-group{display:flex;flex-direction:column;gap:6px}
.form-group label{font-size:13px;font-weight:600;color:var(--gray-1);letter-spacing:0.02em}
.form-group input,.form-group select,.form-group textarea{padding:12px 16px;border:1.5px solid var(--gray-4);border-radius:var(--radius);font-family:var(--font-body);font-size:14px;transition:border-color var(--transition);background:#fff}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}
.form-group textarea{resize:vertical;min-height:140px}
.form-submit{padding:14px 36px;font-size:15px;font-weight:600}
.form-note{font-size:12px;color:var(--gray-3);margin-top:8px}
.form-success{text-align:center;padding:48px}
.form-success .success-icon{width:64px;height:64px;margin:0 auto 16px;background:#7A9E7E;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;color:#fff}
.contact-info-panel{display:flex;flex-direction:column;gap:24px;padding-top:8px}
.info-block{padding:24px;background:var(--cream);border-radius:var(--radius-lg);border:1px solid var(--gray-4)}
.info-block h3{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:12px}
.info-block a{color:var(--primary);font-weight:600}
.highlight-wa{border-color:#25D366;background:rgba(37,211,102,0.05)}
.footer{background:var(--dark);color:var(--gray-3);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.logo-mark.small{width:36px;height:36px;font-size:14px}
.footer .logo-cn{color:var(--gray-3)}
.footer .logo-en{color:var(--gray-2)}
.footer-links h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:0.04em}
.footer-links ul li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--gray-3);transition:color var(--transition)}
.footer-links a:hover{color:var(--primary)}
.footer-contact h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}
.footer-contact div{font-size:14px;margin-bottom:8px}
.footer-bottom{margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,0.1);text-align:center;font-size:13px}
.wa-float{position:fixed;bottom:24px;right:24px;z-index:999;width:56px;height:56px;background:#25D366;color:#fff!important;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;box-shadow:0 4px 16px rgba(37,211,102,0.35);transition:all var(--transition)}
.wa-float:hover{transform:scale(1.1);box-shadow:0 6px 24px rgba(37,211,102,0.45)}
.cta-banner{background:linear-gradient(135deg,var(--primary-dark),var(--primary));padding:80px 0;text-align:center;color:#fff}
.cta-content h2{font-family:var(--font-heading);font-size:clamp(28px,3.5vw,42px);font-weight:700;margin-bottom:16px}
.cta-content p{font-size:16px;opacity:0.9;margin-bottom:32px;max-width:500px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-banner .btn-secondary{color:#fff;border-color:rgba(255,255,255,0.5)}
.cta-banner .btn-secondary:hover{background:#fff;color:var(--primary-dark);border-color:#fff}
@media(max-width:1024px){
  .advantage-grid{grid-template-columns:repeat(2,1fr)}
  .advantage-card:nth-child(2){border-right:none}
  .advantage-card:nth-child(1),.advantage-card:nth-child(2){border-bottom:1px solid var(--gray-4)}
  .contact-layout{grid-template-columns:1fr}
  .about-split{grid-template-columns:1fr;gap:40px}
  .product-card-enhanced{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-menu{display:none;position:fixed;top:72px;left:0;right:0;background:#fff;padding:20px;flex-direction:column;gap:4px;border-bottom:1px solid var(--gray-4)}
  .nav-menu.open{display:flex}
  .hamburger{display:flex}
  .nav-social{display:none}
  .hero{min-height:auto}
  .hero-content{padding:60px 0 50px}
  .hero h1{font-size:36px}
  .advantage-grid{grid-template-columns:1fr}
  .advantage-card{border-right:none;border-bottom:1px solid var(--gray-5)}
  .section{padding:60px 0}
  .form-row.two-col{grid-template-columns:1fr}
  .product-img{min-height:200px}
  .product-info{padding:20px}
  .footer-grid{grid-template-columns:1fr}
}
.reveal{opacity:0;transform:translateY(20px);transition:opacity 0.5s ease,transform 0.5s ease}
.reveal.visible{opacity:1;transform:translateY(0)}