:root {
  --brand: #4a8b2c;
  --brand-light: #6ab04c;
  --brand-dark: #35611e;
  --brand-pale: #f0f7ec;
  --gold: #c7a645;
  --text: #333;
  --text-light: #666;
  --bg: #fff;
  --bg-alt: #f8faf6;
  --shadow: 0 8px 30px rgba(0,0,0,.08);
  --shadow-hover: 0 16px 40px rgba(74,139,44,.18);
  --radius: 12px;
  --maxw: 1200px;
  --header-h: 72px;
  --sans: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --serif: Georgia,"Songti SC",serif;
  --ease-out: cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{margin:0;font-family:var(--sans);color:var(--text);line-height:1.7;background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0 0 .6em;line-height:1.3;font-weight:600}
p{margin:0 0 1em}
button{font-family:inherit;cursor:pointer}
.skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{position:static;width:auto;height:auto;padding:8px 16px;background:var(--brand);color:#fff;border-radius:4px}

.container{width:min(92%,var(--maxw));margin:0 auto}
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:2.2rem;color:var(--brand);margin-bottom:.3em;position:relative;display:inline-block}
.section-title h2::after{content:"";display:block;width:48px;height:4px;background:var(--gold);margin:12px auto 0;border-radius:2px}
.section-title p{color:var(--text-light);font-size:1rem;letter-spacing:2px;text-transform:uppercase}

/* header */
.site-header{position:fixed;inset:0 0 auto 0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);box-shadow:0 2px 10px rgba(0,0,0,.05);transition:background .3s,box-shadow .3s}
.site-header.is-stuck{background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo img{height:44px;width:auto}
.main-nav ul{display:flex;gap:36px}
.main-nav a{position:relative;color:var(--text);font-size:1rem;font-weight:500;padding:6px 0}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--brand);transition:width .3s var(--ease-out)}
.main-nav a:hover,.main-nav a.current{color:var(--brand)}
.main-nav a:hover::after,.main-nav a.current::after{width:100%}
.menu-toggle{display:none;flex-direction:column;justify-content:center;width:44px;height:44px;background:none;border:0;gap:6px}
.menu-toggle span{display:block;width:26px;height:2px;background:var(--brand);transition:.3s}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* hero */
.hero{position:relative;height:min(720px,92vh);min-height:520px;overflow:hidden;display:flex;align-items:center;background:#1a2e12}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1s}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.1);animation:kenburns 8s ease-out forwards}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(26,46,18,.78) 0%,rgba(26,46,18,.35) 60%,transparent 100%)}
.hero-content{position:relative;z-index:2;max-width:var(--maxw);width:92%;margin:0 auto;padding-top:var(--header-h);color:#fff}
.hero-content h1{font-size:3.2rem;font-weight:700;margin-bottom:.3em;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.hero-content .lead{font-size:1.35rem;opacity:.92;margin-bottom:1.5em;max-width:560px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 32px;border-radius:50px;font-size:1rem;font-weight:600;transition:transform .2s,box-shadow .2s,border-color .2s,background .2s}
.btn-primary{background:var(--brand);color:#fff;border:2px solid var(--brand);box-shadow:0 6px 20px rgba(74,139,44,.35)}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 28px rgba(74,139,44,.4)}
.btn-outline{color:#fff;border:2px solid rgba(255,255,255,.8);background:rgba(255,255,255,.1)}
.btn-outline:hover{background:#fff;color:var(--brand);transform:translateY(-2px)}
.hero-dots{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.hero-dots button{width:12px;height:12px;border-radius:50%;border:0;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.hero-dots button.active{background:#fff;transform:scale(1.2)}

@keyframes kenburns{to{transform:scale(1)}}

/* reveal animations */
.reveal{opacity:0;transform:translateY(32px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal.visible{opacity:1;transform:none}
.reveal-left{opacity:0;transform:translateX(-40px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal-left.visible{opacity:1;transform:none}
.reveal-right{opacity:0;transform:translateX(40px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal-right.visible{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.92);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.reveal-scale.visible{opacity:1;transform:none}

/* intro */
.intro{background:var(--bg-alt)}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.intro-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.intro-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.intro-media::before{content:"";position:absolute;inset:-12px;border:2px solid var(--brand-light);border-radius:calc(var(--radius) + 8px);z-index:-1;opacity:.35}
.intro-body h2{font-size:2rem;color:var(--brand);margin-bottom:.4em}
.intro-body h3{font-size:1.15rem;color:var(--gold);font-weight:500;margin-bottom:1em}
.intro-body p{color:var(--text-light);margin-bottom:1.2em}

/* feature list */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:#fff;border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;border-top:3px solid var(--brand-light)}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.feature-icon{width:64px;height:64px;margin:0 auto 18px;background:var(--brand-pale);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:1.6rem;font-weight:700}
.feature-card h3{font-size:1.15rem;margin-bottom:.5em}
.feature-card p{font-size:.95rem;color:var(--text-light);line-height:1.6}

/* products */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.product-card{position:relative;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .35s var(--ease-out),box-shadow .35s}
.product-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.product-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.product-card:hover .thumb img{transform:scale(1.08)}
.product-card .info{padding:24px}
.product-card h3{font-size:1.2rem;color:var(--brand);margin-bottom:.5em}
.product-card p{font-size:.95rem;color:var(--text-light);line-height:1.6;margin-bottom:1em;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.product-card .price{color:var(--gold);font-weight:700;font-size:1.1rem;margin-bottom:14px}
.product-card .more{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600}
.product-card .more::after{content:"→";transition:transform .2s}
.product-card:hover .more::after{transform:translateX(4px)}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.news-card{display:flex;gap:20px;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-card .thumb{flex:0 0 180px;aspect-ratio:1;overflow:hidden;background:var(--bg-alt)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.news-card:hover .thumb img{transform:scale(1.08)}
.news-card .info{padding:22px 22px 22px 0;flex:1;display:flex;flex-direction:column;justify-content:center}
.news-card time{color:var(--text-light);font-size:.85rem;margin-bottom:8px}
.news-card h3{font-size:1.15rem;margin-bottom:.6em;color:var(--text)}
.news-card p{font-size:.95rem;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* cta */
.cta-section{position:relative;padding:90px 0;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;overflow:hidden}
.cta-bg{position:absolute;inset:0;opacity:.18}
.cta-bg img{width:100%;height:100%;object-fit:cover}
.cta-content{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.cta-content h2{font-size:2.2rem;margin-bottom:.5em}
.cta-content p{font-size:1.1rem;opacity:.92;margin-bottom:1.6em}
.cta-content .btn-primary{background:#fff;color:var(--brand);border-color:#fff}
.cta-content .btn-primary:hover{background:var(--brand-pale);color:var(--brand-dark);border-color:var(--brand-pale)}

/* small cards (franchise/store/cases/jobs) */
.mini-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.mini-card{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff;transition:transform .3s,box-shadow .3s}
.mini-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.mini-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover}
.mini-card .info{padding:18px;text-align:center}
.mini-card h3{font-size:1.05rem;margin-bottom:.3em;color:var(--brand)}
.mini-card p{font-size:.88rem;color:var(--text-light)}

/* contact page */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px}
.contact-info{background:#fff;border-radius:var(--radius);padding:36px;box-shadow:var(--shadow)}
.contact-info h2{color:var(--brand);font-size:1.6rem;margin-bottom:1em}
.contact-row{display:flex;gap:16px;margin-bottom:22px;align-items:flex-start}
.contact-row .icon{width:44px;height:44px;border-radius:50%;background:var(--brand-pale);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex:0 0 44px}
.contact-row h4{font-size:1rem;margin-bottom:.2em}
.contact-row p{color:var(--text-light);font-size:.95rem}
.map-box{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);height:100%;min-height:360px;background:var(--bg-alt)}
.map-box img{width:100%;height:100%;object-fit:cover}
.contact-form{background:#fff;border-radius:var(--radius);padding:36px;box-shadow:var(--shadow);margin-top:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group label{display:block;font-size:.9rem;margin-bottom:6px;color:var(--text-light)}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;border:1px solid #ddd;border-radius:8px;font-size:1rem;transition:border-color .2s,box-shadow .2s}
.form-group input:focus,.form-group textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(74,139,44,.12)}
.form-group textarea{min-height:120px;resize:vertical}
.form-group.full{grid-column:1 / -1}
.btn-submit{background:var(--brand);color:#fff;border:0;padding:14px 40px;border-radius:50px;font-size:1rem;font-weight:600;transition:.2s}
.btn-submit:hover{background:var(--brand-dark);transform:translateY(-2px)}

/* news list */
.news-list{display:grid;gap:24px}
.news-list .news-card{flex-direction:row}

/* about page */
.about-hero{height:380px;display:flex;align-items:center;justify-content:center;position:relative;background:var(--brand-dark);color:#fff;text-align:center;overflow:hidden}
.about-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.35}
.about-hero .container{position:relative;z-index:2}
.about-hero h1{font-size:2.8rem;margin-bottom:.3em}
.about-hero p{font-size:1.2rem;opacity:.9}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:60px 0}
.stat{text-align:center;background:#fff;border-radius:var(--radius);padding:28px 16px;box-shadow:var(--shadow)}
.stat strong{display:block;font-size:2.4rem;color:var(--brand);line-height:1}
.stat span{display:block;margin-top:8px;color:var(--text-light);font-size:.95rem}

/* footer */
.site-footer{background:#1e2b18;color:rgba(255,255,255,.75);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:48px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:1.1rem;margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:2px;background:var(--brand-light)}
.footer-col p,.footer-col a{font-size:.95rem;color:rgba(255,255,255,.75);line-height:1.8}
.footer-col a:hover{color:#fff}
.footer-tel{font-size:1.15rem;color:#fff;font-weight:600;margin-top:12px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.88rem;color:rgba(255,255,255,.55)}

.backtop{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(20px);transition:.3s;z-index:999;box-shadow:0 4px 14px rgba(74,139,44,.35)}
.backtop::before{content:"↑";font-size:1.4rem;font-weight:700}
.backtop.visible{opacity:1;visibility:visible;transform:translateY(0)}

/* responsive */
@media (max-width:1200px){
  .main-nav ul{gap:26px}
  .hero-content h1{font-size:2.8rem}
}
@media (max-width:992px){
  :root{--header-h:64px}
  .section{padding:60px 0}
  .section-title h2{font-size:1.9rem}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .mini-cards{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .menu-toggle{display:flex}
  .main-nav{position:fixed;inset:var(--header-h) 0 auto 0;background:#fff;max-height:0;overflow:hidden;transition:max-height .4s var(--ease-out);box-shadow:0 8px 20px rgba(0,0,0,.08)}
  .main-nav.open{max-height:340px}
  .main-nav ul{flex-direction:column;gap:0;padding:12px 24px}
  .main-nav li{border-bottom:1px solid #f0f0f0}
  .main-nav a{display:block;padding:14px 0}
  .hero{min-height:480px}
  .hero-content h1{font-size:2.2rem}
  .hero-content .lead{font-size:1.05rem}
  .features-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr}
  .news-card{flex-direction:column}
  .news-card .thumb{flex:none;aspect-ratio:16/9}
  .news-card .info{padding:20px}
  .mini-cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:576px){
  .section{padding:48px 0}
  .section-title{margin-bottom:32px}
  .section-title h2{font-size:1.65rem}
  .hero-content h1{font-size:1.9rem}
  .hero-content .lead{font-size:1rem}
  .btn{padding:12px 24px;font-size:.95rem}
  .about-hero h1{font-size:2rem}
  .stats{grid-template-columns:1fr;gap:16px}
}