:root{--primary-green:#2E8B57;--accent-gold:#D4AF37;--dark-navy:#1a2530;--text-dark:#2d3748}body{font-family:Montserrat,sans-serif;color:var(--text-dark);line-height:1.7;overflow-x:hidden}.lang-zh,.lang-zh .footer-logo{font-family:"Noto Serif SC",serif}.lang-en .footer-logo{font-family:Montserrat,sans-serif}.navbar{background-color:rgba(26,37,48,.95)!important;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 15px rgba(0,0,0,.1);position:fixed;width:100%;top:0;z-index:1000}.navbar-brand{font-weight:600;font-size:1.35rem;letter-spacing:.5px;display:flex;align-items:center;gap:4px}.nav-link{color:#e2e8f0!important;font-weight:600;padding:.6rem 1rem;transition:color .25s;position:relative}.nav-link.active,.nav-link:hover{color:#fff!important}.nav-link.active:after{content:"";position:absolute;left:1rem;right:1rem;bottom:2px;height:2px;background:var(--accent-gold)}.slogan-banner{background:var(--primary-green);color:white;text-align:center;padding:12px 0;font-weight:600;letter-spacing:1px;font-size:1.1rem;margin-top:60px}@media (max-width:768px){.slogan-banner{font-size:.95rem;padding:10px 0;letter-spacing:.5px}.navbar-brand{font-size:1.15rem}}.lang-switch{background:transparent;border:1.5px solid var(--accent-gold);color:white!important;border-radius:20px;padding:4px 14px;font-size:.85rem;font-weight:600;cursor:pointer;text-decoration:none!important;display:inline-block}.lang-switch:hover{background:var(--accent-gold);color:var(--dark-navy)!important}.section{padding:100px 0;min-height:80vh;display:flex;align-items:center}#home_intro{background:linear-gradient(135deg,#f0f7f4,#e6f2eb)}#about_company{background-color:#f8f9fa}#bulk_trading{background-color:#f0f9f7}#green_energy{background-color:#e8f5e9;border-top:4px solid var(--primary-green)}#land_improvement{background-color:#fdf8f0;border-top:4px solid var(--accent-gold)}#contact_info{background-color:#f5f7fa}.section-title{font-weight:700;margin-bottom:40px;position:relative;display:inline-block;font-size:2.2rem;color:var(--dark-navy)}.section-title:after{content:"";position:absolute;width:70px;height:4px;background:linear-gradient(to right,var(--primary-green),var(--accent-gold));bottom:-12px;left:0;border-radius:2px}.card{border:none;border-radius:12px;box-shadow:0 6px 20px rgba(0,0,0,.06);transition:transform .3s ease;overflow:hidden;background:white}.card:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(0,0,0,.12)}.card-body{padding:2rem}.card img{max-width:100%;height:auto;border-radius:8px;margin:1rem 0}footer{background:var(--dark-navy);color:#cbd5e0;padding:50px 0 30px;margin-top:0}.footer-logo{font-size:1.6rem;font-weight:700;margin-bottom:1.2rem;display:block;color:white;text-decoration:none}html{scroll-behavior:smooth}@media (max-width:992px){.section{padding:80px 0}.section-title{font-size:1.8rem}}@media (max-width:576px){.navbar-brand{font-size:1.1rem;gap:2px}.section-title{font-size:1.6rem}}.reveal{opacity:1}.js-ready .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}.js-ready .reveal.in{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){.js-ready .reveal{opacity:1;transform:none;transition:none}}