/* === MODERN STYLES - DingLiu Cooperative === */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#333;line-height:1.6;overflow-x:hidden}
:root{--p:#228B22;--pd:#1a6b1a;--pl:#e8f5e9;--a:#f0a500;--d:#1a1a2e;--d2:#16213e;--g50:#f8f9fa;--g100:#e9ecef;--g600:#6c757d;--g800:#343a40;--w:#fff;--ss:0 2px 8px rgba(0,0,0,.08);--sm:0 4px 16px rgba(0,0,0,.12);--sl:0 8px 32px rgba(0,0,0,.16);--r:12px;--rs:8px;--t:all .3s ease}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Top Bar */
.top-bar{background:var(--d);color:rgba(255,255,255,.85);font-size:.85rem;padding:8px 0}
.top-bar-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.top-bar-contact i{color:var(--a);margin-right:4px}
.top-bar-tags{display:flex;gap:16px;flex-wrap:wrap}
.top-bar-tags span{display:flex;align-items:center;gap:4px}
.top-bar-tags i{color:var(--a);font-size:.75rem}

/* Navbar */
.navbar{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--ss);transition:var(--t)}
.navbar.scrolled{box-shadow:var(--sm)}
.nav-inner{display:flex;justify-content:space-between;align-items:center;height:70px}
.nav-logo{display:flex;align-items:center;gap:12px;font-size:1.15rem;font-weight:700;color:var(--d)}
.nav-logo img{height:44px;width:auto}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{padding:8px 16px;border-radius:var(--rs);font-size:.95rem;color:var(--g800);transition:var(--t);font-weight:500}
.nav-links a:hover,.nav-links a.active{color:var(--p);background:var(--pl)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:3px;background:var(--d);border-radius:3px;transition:var(--t)}
.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}

/* Hero */
.hero{position:relative;height:85vh;min-height:500px;overflow:hidden}
.hero-slider{height:100%;position:relative}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease}
.hero-slide.active{opacity:1}
.hero-slide img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,0,0,.55),rgba(0,0,0,.2));display:flex;align-items:center;justify-content:center;text-align:center;color:var(--w)}
.hero-title{font-size:3rem;font-weight:800;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.3)}
.hero-subtitle{font-size:1.25rem;margin-bottom:32px;opacity:.9;text-shadow:0 1px 4px rgba(0,0,0,.3)}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.2);backdrop-filter:blur(8px);border:none;color:var(--w);width:50px;height:50px;border-radius:50%;cursor:pointer;font-size:1.2rem;transition:var(--t);z-index:10}
.hero-arrow:hover{background:rgba(255,255,255,.4)}
.hero-prev{left:20px}.hero-next{right:20px}
.hero-dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:10}
.hero-dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:var(--t)}
.hero-dot.active{background:var(--a);transform:scale(1.3)}

/* Buttons */
.btn{display:inline-block;padding:14px 36px;border-radius:50px;font-size:1rem;font-weight:600;transition:var(--t);cursor:pointer;border:none}
.btn-primary{background:var(--a);color:var(--d)}
.btn-primary:hover{background:#d49400;transform:translateY(-2px);box-shadow:0 6px 20px rgba(240,165,0,.4)}

/* Animate */
.animate-up{opacity:0;transform:translateY(30px);animation:fadeUp .6s forwards}
.delay-1{animation-delay:.2s}.delay-2{animation-delay:.4s}
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}

/* Features */
.features{padding:60px 0;margin-top:-60px;position:relative;z-index:20}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:var(--w);padding:36px 24px;border-radius:var(--r);text-align:center;box-shadow:var(--sm);transition:var(--t);position:relative;overflow:hidden}
.feature-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--p),var(--a));transform:scaleX(0);transition:transform .3s ease}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--sl)}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{width:70px;height:70px;margin:0 auto 16px;background:var(--pl);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:var(--p);transition:var(--t)}
.feature-card:hover .feature-icon{background:var(--p);color:var(--w);transform:scale(1.1)}
.feature-card h3{font-size:1.1rem;margin-bottom:8px;color:var(--d)}
.feature-card p{font-size:.9rem;color:var(--g600);line-height:1.6}

/* Sections */
.section{padding:80px 0}
.section-gray{background:var(--g50)}
.section-dark{background:var(--d);color:var(--w)}
.section-header{text-align:center;margin-bottom:50px}
.section-header h2{font-size:2.2rem;font-weight:800;color:var(--d);margin-bottom:8px}
.section-header.light h2{color:var(--w)}
.section-subtitle{font-size:1.05rem;color:var(--g600)}
.section-header.light .section-subtitle{color:rgba(255,255,255,.7)}
.section-divider{width:60px;height:3px;background:linear-gradient(90deg,var(--p),var(--a));margin:16px auto 0;border-radius:2px}

/* About */
.about-section{background:var(--w)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-image{border-radius:var(--r);overflow:hidden;box-shadow:var(--sl)}
.about-image img{width:100%;height:400px;object-fit:cover;transition:transform .5s ease}
.about-image:hover img{transform:scale(1.05)}
.about-text h3{font-size:1.6rem;color:var(--d);margin-bottom:16px}
.about-text p{color:var(--g600);margin-bottom:12px;line-height:1.8}
.about-stats{display:flex;gap:40px;margin-top:28px}
.stat{text-align:center}
.stat-num{font-size:2.4rem;font-weight:800;color:var(--p)}
.stat span{font-size:1rem;color:var(--g600)}
.stat p{font-size:.85rem;color:var(--g600);margin-top:4px}

/* Gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.gallery-4col{grid-template-columns:repeat(4,1fr)}
.gallery-card{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;cursor:pointer;box-shadow:var(--ss);transition:var(--t)}
.gallery-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery-card:hover img{transform:scale(1.1)}
.gallery-card:hover{box-shadow:var(--sl)}
.gallery-overlay{position:absolute;inset:0;background:rgba(34,139,34,.85);display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--w);opacity:0;transition:var(--t)}
.gallery-card:hover .gallery-overlay{opacity:1}
.gallery-overlay i{font-size:2rem;margin-bottom:8px}
.gallery-overlay{font-weight:600;font-size:1rem}

/* Seeds Tabs */
.seeds-tabs{max-width:900px;margin:0 auto}
.tabs-nav{display:flex;justify-content:center;gap:8px;margin-bottom:40px;flex-wrap:wrap}
.tab-btn{padding:12px 32px;border:2px solid var(--g100);background:var(--w);border-radius:50px;font-size:1rem;font-weight:600;cursor:pointer;transition:var(--t);color:var(--g800)}
.tab-btn:hover{border-color:var(--p);color:var(--p)}
.tab-btn.active{background:var(--p);color:var(--w);border-color:var(--p)}
.tab-panel{display:none;animation:fadeIn .4s ease}
.tab-panel.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.seed-detail{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start}
.seed-image{border-radius:var(--r);overflow:hidden;box-shadow:var(--sm)}
.seed-image img{width:100%;aspect-ratio:4/3;object-fit:cover}
.seed-info h3{font-size:1.5rem;color:var(--d);margin-bottom:16px}
.seed-code{color:var(--p);font-weight:400}
.seed-info p{margin-bottom:10px;color:var(--g600);line-height:1.8;font-size:.95rem}
.seed-note{margin-top:12px;padding:12px 16px;background:var(--pl);border-radius:var(--rs);font-size:.9rem;border-left:3px solid var(--p)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.contact-info{display:grid;grid-template-columns:300px 300px;gap:20px 300px;margin-left:500px}
.contact-card{background:rgba(255,255,255,.08);padding:24px;border-radius:var(--r);text-align:center;transition:var(--t);border:1px solid rgba(255,255,255,.1)}
.contact-card:hover{background:rgba(255,255,255,.15);transform:translateY(-4px)}
.contact-card i{font-size:1.8rem;color:var(--a);margin-bottom:10px}
.contact-card h4{font-size:1rem;margin-bottom:6px;color:var(--w)}
.contact-card p{font-size:.9rem;color:rgba(255,255,255,.75)}
.contact-card a{color:var(--a)}
.contact-map{border-radius:var(--r);overflow:hidden;box-shadow:var(--sl)}
.contact-map iframe{width:100%;height:400px;display:block;border:0}

/* Footer */
.footer{background:var(--d2);color:rgba(255,255,255,.8);padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand p{font-size:.9rem;line-height:1.7;margin-top:12px}
.footer-logo{height:40px;width:auto;margin-bottom:8px}
.footer-links h4{color:var(--w);font-size:1.05rem;margin-bottom:16px}
.footer-links ul li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.6);transition:var(--t);font-size:.9rem}
.footer-links a:hover{color:var(--a);padding-left:4px}
.footer-bottom{text-align:center;padding:24px 0;font-size:.85rem;color:rgba(255,255,255,.5)}
.footer-bottom p{margin-bottom:4px}
.footer-bottom a{color:rgba(255,255,255,.5);transition:var(--t)}
.footer-bottom a:hover{color:var(--a)}

/* Animations for scroll */
[data-animate]{opacity:0;transform:translateY(40px);transition:opacity .6s ease,transform .6s ease}
[data-animate].visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:1024px){
.features-grid{grid-template-columns:repeat(2,1fr)}
.about-grid{grid-template-columns:1fr;gap:30px}
.gallery-grid{grid-template-columns:repeat(2,1fr)}
.seed-detail{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr 1fr}
.contact-grid{grid-template-columns:1fr}
.hero-title{font-size:2.2rem}
}
@media(max-width:768px){
.nav-toggle{display:flex}
.nav-links{position:fixed;top:70px;left:0;right:0;background:var(--w);flex-direction:column;padding:20px;box-shadow:var(--sm);transform:translateY(-120%);transition:var(--t);z-index:999}
.nav-links.show{transform:translateY(0)}
.hero{height:60vh;min-height:400px}
.hero-title{font-size:1.6rem}
.hero-subtitle{font-size:1rem}
.features-grid{grid-template-columns:1fr}
.features{padding:40px 0;margin-top:-30px}
.section{padding:50px 0}
.section-header h2{font-size:1.6rem}
.about-stats{flex-wrap:wrap;gap:20px;justify-content:center}
.gallery-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.contact-info{grid-template-columns:1fr;gap:16px;justify-self:center;margin-left:0}
.top-bar-tags{display:none}
.seed-detail{gap:20px}
.hero-arrow{width:36px;height:36px;font-size:.9rem}
}