:root{
  --green:#2E5A4C; --green-d:#1f3f34; --gold:#D8A252; --gold-l:#e9c889;
  --bg:#faf8f3; --card:#fff; --line:#ece6d8; --ink:#2b2b2b; --muted:#6b6b6b;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:inherit;text-decoration:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
img{max-width:100%;display:block}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.logo{font-size:22px;font-weight:800;color:var(--green);letter-spacing:1px}
.menu{display:flex;gap:22px;margin-left:auto;font-size:15px}
.menu a{color:var(--muted);padding:6px 0;border-bottom:2px solid transparent}
.menu a.active,.menu a:hover{color:var(--green);border-color:var(--gold)}
.cta{background:var(--gold);color:#3a2a10;font-weight:700;padding:8px 16px;border-radius:30px;font-size:14px;white-space:nowrap}
.burger{display:none;background:none;border:0;font-size:24px;margin-left:auto;color:var(--green)}

/* hero */
.hero{position:relative;color:#fff;min-height:560px;display:flex;align-items:center;background:var(--green-d);overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg .slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s ease}
.hero-bg .slide.active{opacity:1}
.hero-mask{position:absolute;inset:0;z-index:1;background:linear-gradient(rgba(31,61,51,.55),rgba(31,61,51,.72))}
.hero .wrap{position:relative;z-index:2;padding:90px 20px}
.hero h1{font-size:42px;margin:0 0 14px;line-height:1.25}
.hero p{font-size:18px;max-width:640px;opacity:.95;margin:0 0 26px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:30px;font-weight:700}
.btn.g{background:var(--gold);color:#3a2a10}
.btn.o{border:1.5px solid #fff;color:#fff}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;background:var(--green);color:#fff;padding:30px 20px;text-align:center}
.stats b{display:block;font-size:30px;color:var(--gold-l)}
.stats span{font-size:14px;opacity:.9}

/* sections */
section{padding:64px 0}
.sec-h{text-align:center;margin-bottom:38px}
.sec-h h2{font-size:30px;color:var(--green);margin:0 0 8px}
.sec-h p{color:var(--muted);margin:0}

/* cards grid */
.grid{display:grid;gap:22px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(46,90,76,.12)}
.card .ph{height:180px;background:#ddd center/cover}
.card .bd{padding:20px}
.card h3{margin:0 0 8px;color:var(--green);font-size:19px}
.card p{margin:0;color:var(--muted);font-size:14px}

/* business card with image */
.biz .ph{height:160px}
.biz .tag{display:inline-block;font-size:12px;color:var(--gold);border:1px solid var(--gold);border-radius:20px;padding:2px 10px;margin-bottom:8px}

/* case gallery */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.gallery .g{height:200px;border-radius:10px;background:#ccc center/cover;position:relative}
.gallery .g span{position:absolute;left:8px;bottom:8px;background:rgba(0,0,0,.55);color:#fff;font-size:12px;padding:3px 8px;border-radius:6px}

/* why */
.why{background:var(--green);color:#fff}
.why .sec-h h2{color:#fff}
.why .grid{color:#fff}
.why .card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15);color:#fff}
.why .card h3{color:var(--gold-l)}

/* camp */
.camp{background:linear-gradient(120deg,var(--green-d),var(--green));color:#fff}
.camp .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.camp img{border-radius:14px}
.camp h2{color:#fff;font-size:28px;margin-top:0}

/* contact */
.contact .wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.info b{color:var(--green)}
.contact .box{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px}

/* footer */
.ft{background:var(--green-d);color:#e7efe9;padding:48px 0 24px;margin-top:40px}
.ft-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.ft h4{color:var(--gold-l);margin:0 0 10px}
.ft a{color:#cfe3d8}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:16px;font-size:13px;color:#9fb6ab}

/* breadcrumb */
.crumb{font-size:13px;color:var(--muted);padding:16px 0}
.crumb a{color:var(--green)}

/* detail */
.detail .hero2{height:380px;background:center/cover;position:relative}
.detail .hero2:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(31,61,51,.7))}
.detail .hero2 .t{position:absolute;left:0;bottom:0;z-index:2;color:#fff;padding:24px 0;width:100%}
.meta{display:flex;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin:18px 0}
.meta b{color:var(--green)}
.body{font-size:16px;max-width:820px}
.body p{margin:0 0 16px}

/* responsive */
@media(max-width:860px){
  .menu{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 20px;border-bottom:1px solid var(--line)}
  .menu.open{display:flex}
  .burger{display:block}
  .cta{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid.c3,.grid.c2{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .camp .wrap,.contact .wrap,.ft-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
}