*{margin:0;padding:0;box-sizing:border-box}
:root{--green:#10b981;--green-dark:#059669;--green-light:#34d399;--green-pale:#ecfdf5;--bg:#f7fdf9;--bg2:#ffffff;--card:#ffffff;--text:#064e3b;--text2:#065f46;--text3:#047857;--muted:#6b7280;--border:#d1fae5;--accent:#f59e0b}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei',Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(247,253,249,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 5%}
nav .inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-size:22px;font-weight:800;color:var(--green-dark);text-decoration:none}
.logo span{color:var(--accent)}
.nav-links{display:flex;gap:32px;list-style:none}
.nav-links a{color:var(--text2);text-decoration:none;font-size:14px;font-weight:600;transition:color .3s}
.nav-links a:hover{color:var(--green)}
.nav-btns{display:flex;gap:10px}
.btn-nav{padding:9px 20px;border-radius:50px;font-size:13px;font-weight:600;text-decoration:none;transition:all .3s}
.btn-nav-outline{border:1.5px solid var(--green);color:var(--green)}
.btn-nav-outline:hover{background:var(--green);color:#fff}
.btn-nav-primary{background:var(--green);color:#fff}
.btn-nav-primary:hover{background:var(--green-dark)}
@media(max-width:768px){.nav-links{display:none}}
.hero{min-height:100vh;display:flex;align-items:center;position:relative;padding:0 5%;background:linear-gradient(135deg,#ecfdf5 0%,#f7fdf9 50%,#fff 100%)}
.hero-bg{position:absolute;inset:0;background:url("../img/green-bg.jpg") center/cover no-repeat;opacity:.12}
.hero-content{position:relative;z-index:2;max-width:1200px;margin:0 auto;width:100%;padding:100px 0 80px;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.hero-eco{display:inline-flex;align-items:center;gap:8px;background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.2);padding:6px 16px;border-radius:50px;font-size:12px;color:var(--green-dark);font-weight:600;margin-bottom:28px}
.hero-title{font-size:56px;font-weight:900;line-height:1.1;color:var(--text);margin-bottom:20px;letter-spacing:-1px}
.hero-title span{color:var(--green)}
.hero-desc{font-size:17px;color:var(--text3);margin-bottom:36px;line-height:1.9;max-width:500px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 30px;border-radius:50px;font-size:15px;font-weight:700;text-decoration:none;transition:all .3s;border:none;cursor:pointer}
.btn-green{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 8px 30px rgba(16,185,129,.3)}
.btn-green:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(16,185,129,.4)}
.btn-white{background:#fff;color:var(--text);border:1.5px solid var(--border);box-shadow:0 4px 16px rgba(0,0,0,.06)}
.btn-white:hover{border-color:var(--green);color:var(--green)}
.hero-badges{display:flex;gap:24px;flex-wrap:wrap}
.badge{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text3);font-weight:500}
.badge-icon{width:28px;height:28px;border-radius:50%;background:rgba(16,185,129,.12);display:flex;align-items:center;justify-content:center;font-size:14px}
.hero-right{text-align:center;position:relative}
.hero-right img{max-width:380px;width:100%;border-radius:24px;box-shadow:0 30px 80px rgba(16,185,129,.15)}
.eco-strip{background:linear-gradient(135deg,var(--green-dark),var(--green));padding:24px 5%}
.eco-inner{max-width:1200px;margin:0 auto;display:flex;gap:60px;justify-content:center;flex-wrap:wrap}
.eco-item{display:flex;align-items:center;gap:10px;font-size:14px;color:#fff;font-weight:600}
section{padding:100px 5%;position:relative;z-index:1}
.section-header{text-align:center;max-width:640px;margin:0 auto 60px}
.section-label{font-size:11px;font-weight:700;color:var(--green);text-transform:uppercase;letter-spacing:3px;margin-bottom:12px}
.section-title{font-size:38px;font-weight:900;color:var(--text);margin-bottom:16px}
.section-desc{font-size:16px;color:var(--text3);line-height:1.8}
.section-line{width:40px;height:3px;background:var(--green);border-radius:2px;margin:0 auto 20px}
.features-section{background:linear-gradient(180deg,#fff 0%,#f0fdf4 100%)}
.features-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat-card{background:var(--card);border:1px solid var(--border);border-radius:24px;padding:36px 28px;transition:all .4s;box-shadow:0 4px 20px rgba(16,185,129,.05)}
.feat-card:hover{border-color:var(--green);transform:translateY(-6px);box-shadow:0 20px 50px rgba(16,185,129,.1)}
.feat-icon{width:64px;height:64px;border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:32px;margin-bottom:20px;background:linear-gradient(135deg,#ecfdf5,#d1fae5)}
.feat-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:10px}
.feat-desc{font-size:14px;color:var(--text3);line-height:1.7}
.product-band{background:#fff}
.product-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.product-item{background:linear-gradient(135deg,#f0fdf4,#ecfdf5);border:1px solid var(--border);border-radius:20px;padding:28px 20px;text-align:center;transition:all .4s}
.product-item:hover{border-color:var(--green);transform:translateY(-4px);box-shadow:0 12px 30px rgba(16,185,129,.1)}
.product-emoji{font-size:44px;margin-bottom:16px}
.product-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:8px}
.product-desc{font-size:13px;color:var(--text3);line-height:1.6}
.products-section{background:linear-gradient(180deg,#f0fdf4 0%,#fff 100%)}
.products-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.prod-card{background:var(--card);border:1px solid var(--border);border-radius:24px;overflow:hidden;transition:all .4s;display:grid;grid-template-columns:120px 1fr}
.prod-card:hover{border-color:var(--green);transform:translateY(-4px);box-shadow:0 16px 40px rgba(16,185,129,.1)}
.prod-icon{background:linear-gradient(135deg,#d1fae5,#ecfdf5);display:flex;align-items:center;justify-content:center;font-size:48px;min-height:180px}
.prod-body{padding:28px}
.prod-tag{display:inline-block;padding:3px 12px;border-radius:50px;font-size:11px;font-weight:700;margin-bottom:12px}
.tag-g{background:rgba(16,185,129,.1);color:var(--green-dark)}
.tag-a{background:rgba(245,158,11,.1);color:#d97706}
.tag-p{background:rgba(139,92,246,.1);color:#7c3aed}
.prod-title{font-size:19px;font-weight:700;color:var(--text);margin-bottom:10px}
.prod-desc{font-size:14px;color:var(--text3);line-height:1.7;margin-bottom:16px}
.prod-features{list-style:none;display:flex;flex-direction:column;gap:6px}
.prod-features li{font-size:13px;color:var(--text3);display:flex;align-items:center;gap:8px}
.prod-features li::before{content:'✓';color:var(--green);font-weight:700}
.stats-section{background:linear-gradient(135deg,var(--green-dark),var(--green))}
.stats-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.15)}
.stat-item{background:rgba(255,255,255,.08);padding:48px 24px;text-align:center}
.stat-n{font-size:40px;font-weight:900;color:#fff;margin-bottom:8px}
.stat-l{font-size:14px;color:rgba(255,255,255,.85)}
.security-section{background:#fff}
.security-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.sec-title{font-size:38px;font-weight:900;color:var(--text);margin-bottom:20px;text-align:left}
.sec-title span{color:var(--green)}
.sec-desc{font-size:15px;color:var(--text3);line-height:1.8;margin-bottom:28px}
.sec-list{display:flex;flex-direction:column;gap:14px}
.sec-item{display:flex;gap:14px;align-items:flex-start;padding:14px 18px;background:#f0fdf4;border-radius:16px;border:1px solid var(--border)}
.sec-icon{font-size:22px;flex-shrink:0}
.sec-text h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
.sec-text p{font-size:13px;color:var(--text3)}
.cta-section{background:linear-gradient(135deg,#ecfdf5,#f0fdf4);padding:100px 5%;text-align:center;border-top:1px solid var(--border)}
.cta-inner{max-width:640px;margin:0 auto}
.cta-title{font-size:42px;font-weight:900;color:var(--text);margin-bottom:16px}
.cta-title span{color:var(--green)}
.cta-desc{font-size:17px;color:var(--text3);margin-bottom:40px;line-height:1.8}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-lg{padding:18px 40px;border-radius:50px;font-size:16px;font-weight:700;text-decoration:none;transition:all .3s}
.btn-lg-g{background:var(--green);color:#fff;box-shadow:0 8px 30px rgba(16,185,129,.3)}
.btn-lg-g:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(16,185,129,.4)}
.btn-lg-w{background:#fff;color:var(--text);border:1.5px solid var(--border);box-shadow:0 4px 16px rgba(0,0,0,.06)}
.btn-lg-w:hover{border-color:var(--green);color:var(--green)}
footer{background:var(--text);padding:60px 5% 30px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{font-size:22px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-logo span{color:var(--green-light)}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-col h4{font-size:13px;font-weight:700;color:#fff;margin-bottom:16px;text-transform:uppercase;letter-spacing:1px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.6);text-decoration:none;font-size:13px;transition:color .3s}
.footer-col a:hover{color:var(--green-light)}
.footer-bottom{padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:13px;color:rgba(255,255,255,.4)}
.footer-socials{display:flex;gap:8px}
.footer-social{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);text-decoration:none;transition:all .3s;font-size:14px}
.footer-social:hover{background:var(--green);color:#fff}
@media(max-width:1024px){
.hero-content,.security-grid{grid-template-columns:1fr}
.features-grid,.products-grid,.product-grid{grid-template-columns:repeat(2,1fr)}
.footer-top{grid-template-columns:1fr 1fr}
.hero-right{order:-1}}
@media(max-width:640px){
.hero-title{font-size:32px}
.section-title{font-size:26px}
.features-grid,.products-grid,.product-grid{grid-template-columns:1fr}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.footer-top{grid-template-columns:1fr}
.cta-title{font-size:28px}
.hero-btns{flex-direction:column;align-items:center}
.prod-card{grid-template-columns:1fr}}