@charset "utf-8";
:root{--green:#1f7a3d;--green-dark:#14532a;--green-light:#e8f5ec;--ink:#1c2419;--muted:#5c6b58;--bg:#f7faf6;--card:#ffffff;--radius:14px;--shadow:0 8px 24px rgba(20,60,30,.10)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid #e2ece3}
.nav{max-width:1160px;margin:0 auto;display:flex;align-items:center;gap:32px;padding:14px 24px}
.logo{font-size:22px;font-weight:800;color:var(--green-dark);letter-spacing:1px}
.logo::before{content:"";display:inline-block;width:12px;height:12px;background:var(--green);border-radius:2px 10px 2px 10px;margin-right:8px}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{font-size:15px;color:var(--muted);transition:color .2s}
.nav-links a:hover{color:var(--green)}
.nav-cta{background:var(--green);color:#fff;padding:9px 22px;border-radius:999px;font-size:15px;font-weight:600;transition:background .2s}
.nav-cta:hover{background:var(--green-dark)}
.hero{background:linear-gradient(120deg,#123d22 0%,#1f7a3d 55%,#3ea35e 100%);color:#fff;padding:96px 24px 80px;text-align:center;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto -10% -60% -10%;height:70%;background:radial-gradient(closest-side,rgba(255,255,255,.14),transparent);pointer-events:none}
.hero-inner{max-width:860px;margin:0 auto;position:relative}
.hero-tag{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:5px 18px;font-size:14px;letter-spacing:2px;margin-bottom:20px}
.hero h1{font-size:42px;line-height:1.3;font-weight:800;margin-bottom:16px}
.hero-text{font-size:17px;color:rgba(255,255,255,.88);max-width:640px;margin:0 auto 32px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:48px}
.btn{display:inline-block;padding:12px 30px;border-radius:10px;font-size:16px;font-weight:600;transition:all .2s;cursor:pointer;border:2px solid transparent}
.btn-solid{background:#fff;color:var(--green-dark)}
.btn-solid:hover{background:var(--green-light)}
.btn-line{border-color:rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.14)}
.btn-lg{padding:15px 40px;font-size:17px}
.hero-stats{display:flex;justify-content:center;gap:56px;flex-wrap:wrap}
.hero-stats .stat b{display:block;font-size:32px;font-weight:800}
.hero-stats .stat span{font-size:14px;color:rgba(255,255,255,.8)}
section{padding:76px 24px}
.section{max-width:1160px;margin:0 auto}
.section h2{font-size:30px;font-weight:800;text-align:center;margin-bottom:12px}
.section>p{text-align:center;color:var(--muted);max-width:680px;margin:0 auto 48px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.card{background:var(--card);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);border:1px solid #e7f0e8;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(20,60,30,.16)}
.card h3{font-size:19px;margin:14px 0 10px;color:var(--green-dark)}
.card p{color:var(--muted);font-size:15px}
.card .num{display:inline-flex;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;background:var(--green-light);color:var(--green);font-weight:800;font-size:18px}
.slash-1{border-left:5px solid var(--green)}
.slash-2{border-left:5px solid #4aa86a}
.slash-3{border-left:5px solid #8cc79c}
.dark-band{background:linear-gradient(120deg,#12321d,#1f5a31);color:#fff;text-align:center}
.dark-band h2{color:#fff}
.dark-band p{color:rgba(255,255,255,.82)}
.stat-row{display:flex;justify-content:center;gap:64px;flex-wrap:wrap;margin-top:40px}
.stat b{display:block;font-size:40px;font-weight:800;color:#8fe0a8}
.stat span{font-size:15px;color:rgba(255,255,255,.78)}
.contact{background:var(--green-light)}
.contact .card{max-width:640px;margin:0 auto;text-align:center}
.contact h2{font-size:28px;font-weight:800;margin-bottom:12px}
.contact p{color:var(--muted);margin-bottom:24px}
.site-footer{background:#122516;color:#cfe2d3;padding:56px 24px 32px}
.site-footer a{transition:color .2s}
.site-footer a:hover{color:#8fe0a8}
.footer-brand strong{font-size:20px;color:#fff;display:block;margin-bottom:8px}
.footer-brand p{font-size:14px;max-width:280px}
.site-footer .footer-links{display:flex;flex-wrap:wrap;gap:12px 28px;margin:28px 0;font-size:15px}
.site-footer .footer-links a:hover{text-decoration:underline}
.copyright{font-size:13px;color:#8aa48d;border-top:1px solid rgba(255,255,255,.12);padding-top:22px;word-break:break-all}
@media(max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:32px}}
@media(max-width:640px){.nav{flex-wrap:wrap;gap:12px}.nav-links{order:3;width:100%;overflow-x:auto;gap:18px;padding-bottom:4px}.nav-cta{margin-left:auto;padding:7px 16px}.grid-3,.grid-2{grid-template-columns:1fr}.hero{padding:64px 20px}.hero-stats,.stat-row{gap:28px}.section h2{font-size:24px}}