:root{
  --green:#2e7d5b;
  --green-dark:#1d5a3f;
  --orange:#e07b39;
  --bg:#faf8f5;
  --bg-alt:#f2efe9;
  --ink:#2c2c2a;
  --muted:#6f6d68;
  --line:#e5e1d8;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:8px;font-weight:600;font-size:17px;color:var(--green-dark)}
.brand img{height:50px;width:auto}
.menu{display:flex;align-items:center;gap:22px;font-size:14px;color:var(--muted)}
.menu a:hover{color:var(--green)}
.menu-tel{color:#fff!important;background:var(--green);padding:6px 14px;border-radius:99px;font-weight:600}

/* hero */
.hero{position:relative;min-height:440px;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,45,32,.82) 0%,rgba(20,45,32,.55) 55%,rgba(20,45,32,.25) 100%)}
.hero-in{position:relative;color:#fff;padding:70px 20px}
.hero-in h1{font-size:clamp(24px,4vw,40px);font-weight:600;letter-spacing:1px}
.hero-sub{margin-top:12px;font-size:clamp(14px,2vw,18px);opacity:.92}
.hero-badges{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.hero-badges span{border:1px solid rgba(255,255,255,.55);border-radius:99px;padding:4px 14px;font-size:13px;background:rgba(255,255,255,.12)}
.hero-cta{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 26px;border-radius:10px;font-size:16px;font-weight:600;transition:transform .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#fff}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.6)}

/* stats */
.stats{background:var(--green);color:#fff}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:26px 20px;text-align:center}
.stat b{display:block;font-size:clamp(22px,3vw,32px);font-weight:600}
.stat span{font-size:13px;opacity:.9}

/* sections */
.sec{padding:64px 0}
.sec-alt{background:var(--bg-alt)}
.sec-title{text-align:center;font-size:clamp(20px,3vw,28px);font-weight:600;color:var(--green-dark);margin-bottom:36px}
.sec-title::after{content:"";display:block;width:44px;height:3px;background:var(--orange);border-radius:2px;margin:12px auto 0}

/* about */
.about{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:start}
.about-txt p{margin-bottom:14px;text-indent:2em;color:#43413c;font-size:15px}
.about-pic img{border-radius:14px;box-shadow:0 8px 24px rgba(46,125,91,.15);width:100%;object-fit:cover}

/* services */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 22px;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 10px 26px rgba(46,125,91,.12);transform:translateY(-3px)}
.card h3{font-size:16px;color:var(--green-dark);font-weight:600;margin-bottom:8px}
.card h3::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--orange);margin-right:8px;vertical-align:2px}
.card p{font-size:13.5px;color:var(--muted)}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.gallery figure{position:relative;border-radius:14px;overflow:hidden}
.gallery img{width:100%;height:300px;object-fit:cover;transition:transform .35s}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 10px;font-size:13px;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.55))}

/* process */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.steps-note{margin-top:24px;font-size:13px;color:var(--muted);text-align:center;line-height:1.8}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px 20px;text-align:center}
.step i{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff;font-style:normal;font-weight:600;margin-bottom:12px}
.step h3{font-size:15px;font-weight:600;color:var(--green-dark)}
.step p{font-size:13px;color:var(--muted);margin-top:6px}

/* contact */
.contact{background:var(--green-dark);color:#fff;text-align:center;padding:64px 0}
.contact h2{font-size:clamp(20px,3vw,28px);font-weight:600}
.contact>p{margin-top:10px;opacity:.88}
.contact-card{margin-top:34px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:20px;padding:36px 48px;display:flex;align-items:center;justify-content:center;gap:48px;flex-wrap:wrap}
.contact-left{display:flex;flex-direction:column;gap:8px}
.contact-left small{font-size:14px;opacity:.85;letter-spacing:3px}
.tel-num{font-size:clamp(26px,5vw,42px);font-weight:600;color:#fff;letter-spacing:1px;transition:color .2s}
.tel-num:hover{color:#ffc59a}
.contact-addr{font-size:14px;opacity:.9}
.contact-sep{width:1px;align-self:stretch;min-height:116px;background:rgba(255,255,255,.22)}
.contact-qr{background:#fff;border-radius:14px;padding:12px;text-align:center}
.contact-qr img{display:block;width:118px;height:118px;object-fit:contain}
.contact-qr figcaption{font-size:12px;color:var(--green-dark);font-weight:600;margin-top:6px}
.contact-addr{font-size:14px;opacity:.9}

/* footer */
.foot{background:#173c2c;color:#cfe0d6;text-align:center;padding:26px 0;font-size:13px}
.foot a:hover{color:#fff}
.foot-op{opacity:.75;font-size:12px}

@media (max-width:820px){
  .menu a:not(.menu-tel){display:none}
  .about{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .stats-in{grid-template-columns:1fr 1fr}
  .contact-card{flex-direction:column;gap:26px;padding:28px 24px}
  .contact-left{align-items:center;text-align:center}
  .contact-sep{width:70%;min-height:0;height:1px}
}
@media (max-width:480px){
  .cards,.gallery,.steps{grid-template-columns:1fr}
}