:root{--ink:#0d2b21;--green:#1f6b4b;--lime:#b6e04b;--bg:#f3f6ef;--text:#1d2b25;--muted:#5b6a62;--line:#dbe3d6;
--sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:64px}
body{font-family:var(--sans);color:var(--text);background:#fff;line-height:1.8;font-size:16px}
img{display:block;max-width:100%}ul,ol{list-style:none}a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--lime);outline-offset:2px}
.wrap{max-width:1240px;margin:0 auto;padding:0 28px}

.site-header{position:fixed;inset:0 0 auto 0;z-index:30;height:64px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 32px;transition:box-shadow .3s}
.site-header.solid{box-shadow:0 2px 16px rgba(13,43,33,.12)}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink)}
.mark{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--green);color:var(--lime);font-size:16px}
.nav{display:flex;align-items:center;gap:28px;font-size:15px;font-weight:500}
.nav a:not(.nav-cta){padding:4px 0;border-bottom:2px solid transparent}
.nav a:not(.nav-cta):hover{border-color:var(--green)}
.nav-cta{background:var(--ink);color:#fff;padding:7px 22px;border-radius:99px}
.nav-cta:hover{background:var(--green)}
.menu-btn{display:none;background:none;border:1.5px solid var(--ink);border-radius:99px;padding:3px 16px;font:inherit;cursor:pointer}

.hero{position:relative;height:88vh;min-height:580px;margin-top:64px;display:flex;align-items:flex-end;color:#fff;background:var(--ink);overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(13,43,33,.92) 0%,rgba(13,43,33,.55) 38%,rgba(13,43,33,0) 70%)}
.hero-text{position:relative;z-index:1;width:100%;max-width:1240px;margin:0 auto;padding:0 28px 64px}
.hero h1{font-weight:800;font-size:clamp(38px,6.6vw,92px);line-height:1.12;letter-spacing:-.01em;max-width:11em;animation:up .8s ease both}
.hero p{margin:18px 0 32px;font-size:clamp(16px,1.7vw,21px);max-width:30em;color:#e4efe0;animation:up .8s .12s ease both}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;animation:up .8s .24s ease both}
.btn{display:inline-block;padding:14px 38px;border-radius:99px;font-weight:700;font-size:16px;border:2px solid var(--lime);transition:transform .2s,background .2s,color .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-ghost{color:#fff;border-color:#fff}
.btn-ghost:hover{background:#fff;color:var(--ink)}
@keyframes up{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}

.section{padding:92px 0}
.head{display:flex;align-items:baseline;gap:18px;margin-bottom:36px;flex-wrap:wrap}
.no{font-size:14px;font-weight:800;letter-spacing:.1em;color:var(--green);background:var(--lime);padding:2px 12px;border-radius:99px}
.head h2{font-size:clamp(28px,3.4vw,42px);font-weight:800;color:var(--ink);line-height:1.2}
.head p{color:var(--muted);flex-basis:100%}

.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:230px;gap:14px}
.bento li:first-child{grid-column:span 2;grid-row:span 2}
.bento li:last-child{grid-column:span 2}
.bento figure{position:relative;height:100%;border-radius:18px;overflow:hidden;cursor:zoom-in;background:var(--ink)}
.bento img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.bento figure:hover img{transform:scale(1.06)}
.bento figcaption{position:absolute;inset:auto 0 0 0;padding:44px 18px 16px;background:linear-gradient(0deg,rgba(13,43,33,.88),rgba(13,43,33,0));color:#fff;display:flex;flex-direction:column}
.bento b{font-size:17px}.bento span{font-size:13px;color:#d5e6cf}
.bento li:first-child b{font-size:24px}.bento li:first-child span{font-size:15px}

.about-bg{background:var(--bg)}
.about-top{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.about-top .head{display:block;position:sticky;top:96px;margin:0}
.about-top .head h2{margin-top:14px}
.about-top p{margin-bottom:16px;text-align:justify}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:56px;counter-reset:s}
.steps li{counter-increment:s;border-top:3px solid var(--green);padding-top:14px}
.steps li::before{content:"0" counter(s);font-size:30px;font-weight:800;color:var(--lime);-webkit-text-stroke:1px var(--green);line-height:1}
.steps b{display:block;font-size:18px;color:var(--ink);margin-top:6px}
.steps span{font-size:14px;color:var(--muted)}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--lime);border-radius:6px 6px 14px 14px;padding:26px 24px 24px}
.card time{display:inline-block;font-size:13px;font-weight:700;color:var(--green);background:var(--bg);padding:1px 12px;border-radius:99px}
.card h3{font-size:20px;line-height:1.5;color:var(--ink);margin:12px 0 8px}
.card .sum{font-size:15px;color:var(--muted);text-align:justify}
.news-a{background:var(--bg)}
.news-b{background:var(--ink)}
.news-b .head h2{color:#fff}.news-b .no{background:var(--lime)}
.news-b .card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);border-top-color:var(--lime)}
.news-b .card time{background:rgba(255,255,255,.12);color:var(--lime)}
.news-b .card h3{color:#fff}.news-b .card .sum{color:#bcd0c4}

.contact{background:var(--lime);color:var(--ink);padding:76px 0 0}
.contact h2{font-size:clamp(30px,4vw,52px);font-weight:800;line-height:1.2}
.contact .lead{margin:8px 0 36px;font-size:18px}
.info{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding-bottom:64px}
.info div{border-top:2px solid var(--ink);padding-top:10px}
.info dt{font-size:13px;font-weight:700;letter-spacing:.1em}
.info dd{font-size:18px;font-weight:700}
.copy{background:var(--ink);color:#8fa99a;text-align:center;font-size:13px;padding:18px}

.lightbox{position:fixed;inset:0;z-index:60;background:rgba(6,20,15,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px}
.lightbox[hidden]{display:none}
.lightbox img{max-height:80vh;max-width:min(92vw,1000px);border-radius:12px}
.lightbox p{color:#fff;font-weight:700}
.lightbox button{position:absolute;top:18px;right:22px;background:var(--lime);border:0;border-radius:99px;padding:6px 20px;font:inherit;font-weight:700;cursor:pointer}

@media(max-width:1000px){
 .about-top{grid-template-columns:1fr;gap:28px}.about-top .head{position:static}
 .steps{grid-template-columns:repeat(2,1fr)}.cards{grid-template-columns:1fr 1fr}.info{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
 .site-header{padding:0 18px}.menu-btn{display:block}
 .nav{position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:6px 24px 18px;display:none;box-shadow:0 12px 20px rgba(13,43,33,.12)}
 .nav.open{display:flex}.nav a{padding:12px 0!important;border-bottom:1px solid var(--line)!important}
 .nav-cta{margin-top:10px;text-align:center;border-radius:10px}
 .section{padding:60px 0}.hero{height:80vh}
 .bento{grid-template-columns:1fr 1fr;grid-auto-rows:170px}
 .cards{grid-template-columns:1fr}.btn{padding:12px 28px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}