/* ===== Reset & Tokens ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --ink:#1c1c1c;
  --ink-light:#555;
  --ink-muted:#888;
  --green-deep:#1a3320;
  --green:#2d5a34;
  --green-mid:#3d7a47;
  --green-soft:#7cb083;
  --green-pale:#dce8de;
  --green-wash:#f3f7f4;
  --cream:#f9f6f0;
  --cream-dark:#ede4d4;
  --gold:#b8863f;
  --gold-light:#d4a96a;
  --white:#fff;
  --radius:6px;
  --radius-lg:10px;
  --shadow-card:0 1px 2px rgba(0,0,0,.04),0 4px 16px rgba(0,0,0,.04);
  --shadow-hover:0 2px 4px rgba(0,0,0,.05),0 8px 30px rgba(0,0,0,.07);
  --ease:0.35s cubic-bezier(0.25,0.1,0.25,1);
}

html{scroll-behavior:smooth;scroll-padding-top:80px}

body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  color:var(--ink);
  line-height:1.75;
  font-size:15px;
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

::selection{background:var(--green-soft);color:#fff}

.container{max-width:1120px;margin:0 auto;padding:0 28px}

/* ===== Typography ===== */
.section{padding:96px 0}
.section-alt{background:var(--green-wash)}
.section-dark{background:var(--green-deep);color:rgba(255,255,255,.85)}
.section-head{text-align:center;margin-bottom:56px}
.section-tag{
  display:inline-block;font-size:11px;font-weight:600;letter-spacing:3px;
  text-transform:uppercase;color:var(--gold);margin-bottom:12px;
  border:1px solid var(--gold-light);padding:4px 16px;border-radius:20px;
}
.section-tag.light{color:var(--gold-light);border-color:rgba(255,255,255,.2)}
.section-title{font-size:30px;font-weight:700;color:var(--ink);letter-spacing:2px;margin-bottom:12px}
.section-title.light{color:var(--white)}
.section-desc{font-size:16px;color:var(--ink-muted);max-width:520px;margin:0 auto}
.section-desc.light{color:rgba(255,255,255,.6)}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 32px;border-radius:50px;font-size:14px;font-weight:600;
  cursor:pointer;transition:all var(--ease);border:none;white-space:nowrap;
  text-decoration:none;letter-spacing:1px;
}
.btn-primary{
  background:var(--green);color:#fff;box-shadow:0 2px 10px rgba(45,90,52,.25);
}
.btn-primary:hover{background:var(--green-mid);transform:translateY(-1px);box-shadow:0 6px 20px rgba(45,90,52,.3)}
.btn-ghost{
  background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35);
}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.6)}
.btn-sm{padding:9px 22px;font-size:13px}
.btn-full{width:100%}

/* ===== Header ===== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.92);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(0,0,0,.06);height:72px;
  transition:box-shadow var(--ease);
}
.header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.06)}
.header-inner{
  max-width:1120px;margin:0 auto;padding:0 28px;
  display:flex;align-items:center;justify-content:space-between;height:72px;
}
.logo{display:flex;align-items:center}
.logo-img{height:36px;width:auto}
.nav{display:flex;gap:36px}
.nav-link{font-size:14px;color:var(--ink-light);position:relative;padding:4px 0;transition:color var(--ease)}
.nav-link:hover,.nav-link.active{color:var(--green)}
.nav-link::after{
  content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;
  background:var(--green);transition:width var(--ease);border-radius:1px;
}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:6px}
.menu-btn span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:var(--ease)}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:100vh;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;
  background:var(--green-deep);color:#fff;overflow:hidden;
  padding:100px 28px 0;
}
.hero-bg{
  position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 60% at 50% 30%,rgba(124,176,131,.15),transparent),
             radial-gradient(ellipse 60% 50% at 85% 80%,rgba(184,134,63,.08),transparent),
             linear-gradient(175deg,#1a3320 0%,#243d2a 40%,#2d5232 100%);
}
.hero-content{position:relative;z-index:1;max-width:680px}
.hero-kicker{font-size:13px;letter-spacing:4px;text-transform:uppercase;color:var(--gold-light);margin-bottom:20px}
.hero-title{font-size:52px;font-weight:800;letter-spacing:4px;line-height:1.25;margin-bottom:20px}
.hero-dot{color:var(--gold-light)}
.hero-desc{font-size:18px;line-height:1.9;color:rgba(255,255,255,.7);margin-bottom:40px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}

.hero-strip{
  position:relative;z-index:1;display:flex;justify-content:center;gap:60px;
  margin-top:64px;padding:28px 48px;
  background:rgba(255,255,255,.06);border-radius:16px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.08);
}
.strip-item{text-align:center}
.strip-num{display:block;font-size:36px;font-weight:700;letter-spacing:1px;line-height:1.1}
.strip-num span{font-size:20px;font-weight:400;opacity:.7}
.strip-label{display:block;font-size:13px;margin-top:4px;opacity:.7}

/* ===== Product Grid ===== */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.product-card{
  background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-card);transition:all var(--ease);
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.product-visual{width:100%;height:260px;overflow:hidden;background:var(--green-pale)}
.product-visual img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.product-card:hover .product-visual img{transform:scale(1.06)}
.product-body{padding:22px 24px 28px}
.product-tag{
  display:inline-block;font-size:11px;font-weight:600;color:var(--gold);
  background:var(--cream);padding:3px 12px;border-radius:20px;margin-bottom:10px;
  letter-spacing:1px;
}
.product-body h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:8px}
.product-body p{font-size:13px;color:var(--ink-muted);line-height:1.7}

/* ===== Service Flow ===== */
.flow{display:flex;align-items:flex-start;justify-content:center;gap:0}
.flow-item{text-align:center;flex:0 0 160px}
.flow-num{display:block;font-size:38px;font-weight:800;color:var(--green-pale);line-height:1;margin-bottom:12px}
.flow-item h4{font-size:16px;font-weight:700;margin-bottom:6px;color:var(--ink)}
.flow-item p{font-size:13px;color:var(--ink-muted)}
.flow-divider{
  flex:0 0 48px;height:2px;background:var(--green-pale);
  align-self:center;margin-bottom:40px;
}

/* ===== Supply Chain ===== */
.supply-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;max-width:900px;margin:0 auto}
.supply-card{
  text-align:center;padding:40px 28px;
  background:var(--white);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);transition:all var(--ease);
}
.supply-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.supply-icon{width:48px;height:48px;margin:0 auto 20px;color:var(--green)}
.supply-icon svg{width:100%;height:100%}
.supply-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.supply-card p{font-size:13px;color:var(--ink-muted);line-height:1.8}

/* ===== About ===== */
.about-story{max-width:720px;margin:0 auto}
.about-story p{font-size:15px;line-height:2;margin-bottom:20px;text-indent:2em;color:rgba(255,255,255,.75)}

/* ===== Founders ===== */
.founders-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;max-width:960px;margin:0 auto}
.founder-card{text-align:center}
.founder-photo{
  width:140px;height:140px;border-radius:50%;overflow:hidden;margin:0 auto 20px;
  border:3px solid rgba(255,255,255,.15);transition:border-color var(--ease);
}
.founder-card:hover .founder-photo{border-color:var(--gold)}
.founder-photo img{width:100%;height:100%;object-fit:cover}
.founder-info h3{font-size:18px;font-weight:700;margin-bottom:4px;color:#fff}
.founder-role{display:block;font-size:12px;color:var(--gold-light);margin-bottom:14px;letter-spacing:1px}
.founder-info p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.6)}

/* ===== Client Banner ===== */
.client-banner{max-width:900px;margin:0 auto 32px}
.client-banner img{width:100%;height:auto;display:block}
.industry-chips{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.industry-chips span{
  padding:6px 20px;font-size:12px;color:var(--ink-muted);
  border:1px solid var(--green-pale);border-radius:20px;
  background:var(--white);transition:all var(--ease);
}
.industry-chips span:hover{background:var(--green-wash);color:var(--green);border-color:var(--green-soft)}

/* ===== Contact ===== */
.contact-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start;max-width:960px;margin:0 auto}
.contact-details{display:flex;flex-direction:column;gap:16px}
.contact-card{
  display:flex;gap:16px;align-items:flex-start;padding:16px;
  background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
}
.contact-icon{
  width:44px;height:44px;border-radius:10px;background:var(--green-wash);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.contact-card h4{font-size:14px;font-weight:700;margin-bottom:2px}
.contact-val{font-size:15px;font-weight:600;color:var(--ink)}
.contact-card span{font-size:12px;color:var(--ink-muted)}
.contact-qr{text-align:center;margin-top:8px}
.contact-qr img{width:100px;height:100px;border-radius:var(--radius);display:block;margin:0 auto 8px}
.contact-qr p{font-size:12px;color:var(--ink-muted)}

.contact-form{
  background:var(--white);padding:32px;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px}
.field label span{color:#c0392b}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid #e5e5e5;border-radius:var(--radius);
  font-size:14px;font-family:inherit;color:var(--ink);background:var(--green-wash);
  transition:border-color var(--ease),box-shadow var(--ease);resize:vertical;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--green-soft);box-shadow:0 0 0 3px rgba(124,176,131,.12);background:#fff;
}
.field input::placeholder,.field textarea::placeholder{color:#c0c0c0}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-footnote{font-size:11px;color:var(--ink-muted);margin-top:14px;text-align:center;line-height:1.6}

/* ===== Footer ===== */
.footer{background:#121212;color:rgba(255,255,255,.6);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr .9fr;gap:40px;margin-bottom:40px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-tagline{color:var(--gold-light);font-size:14px;margin-bottom:8px}
.footer-col p,.footer-col a{font-size:13px;line-height:2;display:block;color:rgba(255,255,255,.5);text-decoration:none}
.footer-col a:hover{color:#fff}
.footer-qr{width:72px;height:72px;border-radius:var(--radius);overflow:hidden}
.footer-qr img{width:100%;height:100%;object-fit:cover}
.footer-copy{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:12px;opacity:.4}

/* ===== Animations ===== */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}
.reveal{animation:fadeUp .8s var(--ease) both}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .founders-grid{grid-template-columns:repeat(2,1fr)}
  .contact-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav,.header .btn-primary{display:none}
  .menu-btn{display:block}
  .nav.open{
    display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(16px);padding:16px 28px;
    gap:10px;border-bottom:1px solid rgba(0,0,0,.06);box-shadow:0 8px 30px rgba(0,0,0,.08);
  }
  .hero-title{font-size:32px;letter-spacing:2px}
  .hero-desc{font-size:15px}
  .hero-strip{gap:28px;padding:20px 24px}
  .strip-num{font-size:26px}
  .section-title{font-size:24px}
  .section{padding:64px 0}
  .product-grid,.founders-grid,.supply-grid{grid-template-columns:1fr}
  .flow{flex-direction:column;align-items:center;gap:24px}
  .flow-divider{width:2px;height:32px;margin:0}
  .footer-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
}