:root{
  --ink:#13201B;
  --ink-2:#4C5B54;
  --ink-3:#7C8A83;
  --green:#0F6B4F;
  --green-deep:#08402F;
  --green-soft:#E9F3EF;
  --sand:#C9A227;
  --paper:#FBFAF6;
  --white:#FFFFFF;
  --line:rgba(15,107,79,.14);
  --shadow:0 18px 40px -24px rgba(8,64,47,.45);
  --radius:18px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.serif{font-family:"Noto Serif SC","Songti SC","STSong",serif}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,250,246,.92);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s,box-shadow .3s;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(8,64,47,.5)}
.header-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,var(--green),var(--green-deep));
  color:#fff;font-family:"Noto Serif SC","Songti SC",serif;font-size:19px;font-weight:700;
  box-shadow:0 8px 18px -10px rgba(8,64,47,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.06em;font-weight:700}
.brand-text em{font-size:9px;letter-spacing:.24em;color:var(--ink-3);font-style:normal;text-transform:uppercase}
.nav{display:none;margin-left:auto;gap:4px}
.nav a{
  padding:8px 14px;border-radius:999px;font-size:15px;color:var(--ink-2);
  transition:color .25s,background .25s;
}
.nav a:hover{color:var(--green);background:var(--green-soft)}
.nav a.active{color:var(--green-deep);font-weight:600;background:var(--green-soft)}
.header-cta{
  display:none;margin-left:6px;padding:10px 20px;border-radius:999px;
  background:var(--green);color:#fff;font-size:14px;font-weight:600;letter-spacing:.04em;
  box-shadow:0 10px 22px -14px rgba(15,107,79,.9);
  transition:background .25s,transform .25s;
}
.header-cta:hover{background:var(--green-deep);transform:translateY(-1px)}
.nav-toggle{
  margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;
  background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);transition:transform .3s,opacity .3s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.mobile-nav{
  display:none;border-top:1px solid var(--line);background:var(--paper);
  padding:8px 22px 18px;
}
.mobile-nav.is-open{display:block}
.mobile-nav a{display:block;padding:13px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-2)}
.mobile-nav a:last-child{border-bottom:none}
.mobile-nav a.active{color:var(--green);font-weight:600}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.03em;
  transition:transform .25s,box-shadow .25s,background .25s,color .25s;
}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 16px 30px -18px rgba(15,107,79,.95)}
.btn-primary:hover{background:var(--green-deep);transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-line{border:1px solid var(--line);color:var(--green-deep);background:var(--white)}
.btn-line:hover{border-color:rgba(15,107,79,.4);transform:translateY(-2px)}
.arrow{font-size:15px;line-height:1}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#07392A 0%,#0C5A41 46%,#1E7D5C 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 320px at 82% 8%,rgba(201,162,39,.28),transparent 62%),
    radial-gradient(480px 380px at 6% 96%,rgba(255,255,255,.12),transparent 60%);
}
.hero-inner{position:relative;z-index:2;padding:64px 0 76px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.26em;
  text-transform:uppercase;color:rgba(255,255,255,.78);margin-bottom:22px;
}
.eyebrow::before{content:"";width:30px;height:1px;background:var(--sand);display:block}
.hero h1{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(30px,7.4vw,56px);line-height:1.24;font-weight:700;letter-spacing:.02em;
  margin-bottom:18px;
}
.hero h1 span{color:#F3D98B}
.hero p{max-width:560px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.82);margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:44px}
.fact{border-top:1px solid rgba(255,255,255,.18);padding-top:14px}
.fact strong{display:block;font-size:19px;font-family:"Noto Serif SC","Songti SC",serif;letter-spacing:.04em}
.fact span{font-size:12px;color:rgba(255,255,255,.68);letter-spacing:.12em}

/* ---------- section base ---------- */
.section{padding:62px 0}
.section.alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:640px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.24em;color:var(--green);text-transform:uppercase;margin-bottom:14px}
.kicker::before{content:"";width:26px;height:1px;background:var(--sand)}
.section-head.center .kicker::before{display:none}
h2.h2{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(24px,4.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:.02em;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-2);font-size:15px;line-height:1.9}

/* ---------- grids / cards ---------- */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(15,107,79,.26)}
.card .icon{
  width:44px;height:44px;border-radius:13px;background:var(--green-soft);color:var(--green);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.card h3{font-size:17px;font-weight:700;margin-bottom:8px;letter-spacing:.02em}
.card p{font-size:14px;color:var(--ink-2);line-height:1.85}

/* ---------- about split ---------- */
.split{display:grid;gap:28px;align-items:center}
.split-media{
  position:relative;border-radius:24px;overflow:hidden;min-height:260px;
  background:linear-gradient(150deg,#0C5A41,#1E7D5C 60%,#8FC7AE);
  border:1px solid rgba(15,107,79,.2);
}
.split-media::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(300px 220px at 78% 16%,rgba(201,162,39,.35),transparent 60%),
    repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 14px);
}
.split-media .badge{
  position:absolute;left:22px;bottom:22px;right:22px;color:#fff;
  background:rgba(4,38,27,.42);border:1px solid rgba(255,255,255,.2);
  border-radius:16px;padding:16px 18px;backdrop-filter:blur(6px);
}
.split-media .badge strong{display:block;font-family:"Noto Serif SC","Songti SC",serif;font-size:16px;margin-bottom:4px}
.split-media .badge span{font-size:12px;color:rgba(255,255,255,.78);letter-spacing:.08em}
.checklist{margin-top:20px;display:grid;gap:12px}
.checklist li{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.checklist li::before{
  content:"✓";flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:var(--green-soft);color:var(--green);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.stat{background:var(--white);padding:24px 20px;text-align:center}
.stat strong{display:block;font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(24px,5vw,34px);color:var(--green-deep);letter-spacing:.02em}
.stat span{font-size:12px;color:var(--ink-3);letter-spacing:.12em}

/* ---------- news ---------- */
.news-item{
  display:block;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;transition:transform .3s,box-shadow .3s,border-color .3s;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(15,107,79,.26)}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:10px}
.news-meta .tag{background:var(--green-soft);color:var(--green);border-radius:999px;padding:3px 10px;letter-spacing:.06em}
.news-item h3{font-size:16px;line-height:1.6;margin-bottom:8px;font-weight:700}
.news-item p{font-size:13.5px;color:var(--ink-2);line-height:1.8}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;background:var(--line)}
.timeline li{position:relative;padding-bottom:26px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
  content:"";position:absolute;left:-24px;top:7px;width:9px;height:9px;border-radius:50%;
  background:var(--green);box-shadow:0 0 0 4px var(--green-soft);
}
.timeline h3{font-size:16px;margin-bottom:4px}
.timeline span{font-size:12px;color:var(--sand);letter-spacing:.14em}
.timeline p{font-size:14px;color:var(--ink-2);margin-top:6px}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;color:#fff;
  background:linear-gradient(120deg,#08402F,#0F6B4F 55%,#2A8A66);
  padding:40px 28px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(420px 240px at 88% 10%,rgba(201,162,39,.3),transparent 62%);
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(22px,4.4vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:14px;margin-bottom:24px}
.cta-band .hero-actions{justify-content:center}

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#07392A,#0C5A41 52%,#247E5D);
  padding:52px 0;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 86% 0%,rgba(201,162,39,.26),transparent 62%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:12px;letter-spacing:.18em;color:rgba(255,255,255,.62);margin-bottom:14px}
.crumb a{color:rgba(255,255,255,.82)}
.page-hero h1{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(26px,6vw,42px);line-height:1.3;margin-bottom:10px}
.page-hero p{font-size:14px;color:rgba(255,255,255,.8);max-width:640px;line-height:1.85}

/* ---------- contact ---------- */
.contact-grid{display:grid;gap:16px}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.contact-card .label{font-size:12px;letter-spacing:.16em;color:var(--ink-3);margin-bottom:8px}
.contact-card .value{font-size:19px;font-family:"Noto Serif SC","Songti SC",serif;letter-spacing:.02em;word-break:break-all}
.contact-card .value a{color:var(--green-deep)}
.contact-card .note{font-size:13px;color:var(--ink-2);margin-top:6px}
.map-box{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--green-soft);
  padding:28px 22px;
}
.map-box h3{font-size:16px;margin-bottom:8px}
.map-box p{font-size:14px;color:var(--ink-2)}

/* ---------- product categories ---------- */
.cat{
  position:relative;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--white);padding:24px 22px;
  transition:transform .3s,box-shadow .3s;
}
.cat:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.cat .num{font-family:"Noto Serif SC","Songti SC",serif;font-size:13px;color:var(--sand);letter-spacing:.18em;margin-bottom:12px}
.cat h3{font-size:18px;margin-bottom:8px}
.cat p{font-size:14px;color:var(--ink-2);line-height:1.85}
.cat .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.cat .tags span{font-size:12px;color:var(--green);background:var(--green-soft);border-radius:999px;padding:4px 11px}
.notice{
  margin-top:26px;border-left:3px solid var(--sand);background:#FDF8E8;border-radius:0 12px 12px 0;
  padding:16px 18px;font-size:13px;color:#6B5A20;line-height:1.85;
}

/* ---------- footer ---------- */
.site-footer{background:#0A1F18;color:rgba(255,255,255,.72);margin-top:0}
.footer-inner{display:grid;gap:30px;padding:48px 22px 34px}
.footer-brand .brand-mark{background:linear-gradient(145deg,#1E7D5C,#0B3D2C)}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.45)}
.footer-brand p{margin-top:16px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.58);max-width:300px}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col a,.footer-col li{display:block;font-size:13.5px;color:rgba(255,255,255,.62);padding:5px 0;transition:color .2s}
.footer-col a:hover{color:#F3D98B}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:18px 22px;text-align:center;
  font-size:12px;color:rgba(255,255,255,.42);letter-spacing:.04em;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- desktop ---------- */
@media (min-width:760px){
  .grid-2{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(4,1fr)}
  .hero-facts{grid-template-columns:repeat(4,1fr);max-width:720px}
  .split{grid-template-columns:1.05fr .95fr;gap:48px}
  .stats{grid-template-columns:repeat(4,1fr)}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1.6fr 1fr 1fr 1fr;padding:60px 22px 40px}
}
@media (min-width:980px){
  .nav{display:flex}
  .header-cta{display:inline-flex}
  .nav-toggle{display:none}
  .mobile-nav{display:none !important}
  .section{padding:88px 0}
  .hero-inner{padding:92px 0 104px}
  .page-hero{padding:72px 0}
  .contact-grid{grid-template-columns:repeat(4,1fr)}
}