:root{
  /* ===== Brand color scale (green + harvest gold) ===== */
  --green-900:#1a4721;
  --green-800:#235b2e;
  --green-700:#2f7a3d;
  --green-600:#3d9a4e;
  --green-500:#4caf50;
  --green-100:#e8f5e9;
  --green-50:#f4fbf4;
  --gold-700:#c78300;
  --gold-600:#d99506;
  --gold-500:#f5a623;
  --gold-400:#fbbf40;
  --gold-100:#fff6e0;
  --cream:#fdfbf4;
  --earth:#f6f0e3;
  --ink:#1b251d;
  --ink-soft:#526052;
  --gray-100:#f2f2f2;
  --gray-300:#d9d9d9;
  --white:#ffffff;

  /* ===== Radii & layout ===== */
  --radius:16px;
  --radius-sm:10px;
  --maxw:1200px;

  /* ===== Elevation ===== */
  --shadow-sm:0 2px 8px rgba(26,71,33,.08);
  --shadow-md:0 10px 30px rgba(26,71,33,.12);
  --shadow-lg:0 22px 56px rgba(26,71,33,.18);

  /* ===== Type scale (8px baseline, 12→48px) ===== */
  --fs-xs:12px;
  --fs-sm:13px;
  --fs-base:15px;
  --fs-md:17px;
  --fs-lg:20px;
  --fs-xl:26px;
  --fs-2xl:34px;
  --fs-3xl:48px;

  /* ===== Spacing scale (8px modular) ===== */
  --sp-1:8px;  --sp-2:16px; --sp-3:24px; --sp-4:32px;
  --sp-5:40px; --sp-6:48px; --sp-7:64px; --sp-8:80px;

  /* ===== Motion ===== */
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:.24s;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:var(--fs-base);color:var(--ink);background:var(--cream);line-height:1.7;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
:focus-visible{outline:3px solid var(--green-500);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--green-700);color:#fff;padding:10px 18px;z-index:100;border-radius:0 0 10px 0}
.skip-link:focus{left:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ===== Header ===== */
.header{position:sticky;top:0;z-index:50;background:rgba(253,251,244,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(47,122,61,.12)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.logo-img{height:46px;width:auto;display:block}
.brand{gap:14px}
.brand .zh{font-size:22px;font-weight:800;color:var(--green-900);letter-spacing:.5px}
.brand .en{font-size:10px;color:var(--green-600);letter-spacing:1.5px;display:block;margin-top:-2px}
.navlinks{display:flex;gap:8px}
.navlinks a{padding:10px 18px;color:var(--ink-soft);font-weight:600;border-radius:999px;transition:.2s}
.navlinks a:hover{color:var(--green-800);background:var(--green-100)}
.navlinks a.active{color:var(--green-900);background:var(--green-100)}
.nav .cta{padding:10px 22px;border-radius:999px;background:linear-gradient(135deg,var(--green-600),var(--green-800));color:#fff;font-weight:700;box-shadow:var(--shadow-sm)}
.nav .cta:hover{filter:brightness(1.05)}
.nav-toggle{display:none;background:none;border:0;color:var(--green-900);font-size:26px;cursor:pointer}

/* ===== Hero ===== */
.hero{
  position:relative;background:linear-gradient(180deg,#f4fbef 0%,#fffdf6 60%,#fff 100%);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg .hills{position:absolute;bottom:0;left:0;right:0;height:260px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23e8f5e9' d='M0,224L60,213.3C120,203,240,181,360,181.3C480,181,600,203,720,224C840,245,960,267,1080,261.3C1200,256,1320,224,1380,208L1440,192L1440,320L1380,320C1320,320,1200,320,1080,320C960,320,840,320,720,320C600,320,480,320,360,320C240,320,120,320,60,320L0,320Z'/%3E%3C/svg%3E") no-repeat bottom;background-size:cover}
.hero-bg .overlay{position:absolute;inset:0;background:radial-gradient(1200px 500px at 90% 0%,rgba(76,175,80,.10),transparent)}
.hero .wrap{position:relative;z-index:2;padding:60px 22px 90px;text-align:center}
.hero h1{font-size:48px;line-height:1.2;font-weight:900;color:var(--green-900)}
.hero h1 .mark{color:var(--gold-600)}
.hero p.lead{margin:16px auto 0;max-width:580px;font-size:18px;color:var(--ink-soft)}
.hero .tags{display:flex;gap:10px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.hero .tags span{background:#fff;border:1px solid var(--green-100);color:var(--green-700);padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;box-shadow:var(--shadow-sm)}

.hero-products{position:relative;z-index:3;margin-top:40px;display:flex;justify-content:center;align-items:flex-end;gap:20px;flex-wrap:wrap}
.hero-card{width:180px;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);transition:.25s;border:1px solid rgba(47,122,61,.10)}
.hero-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.hero-card:nth-child(2),.hero-card:nth-child(4){transform:translateY(-14px)}
.hero-card:nth-child(2):hover,.hero-card:nth-child(4):hover{transform:translateY(-22px)}
.hero-card .ph{aspect-ratio:3/4;background:linear-gradient(180deg,#f6f0e3,#fff);display:grid;place-items:center;padding:14px}
.hero-card .ph img{max-height:100%;width:auto;object-fit:contain}
.hero-card .pb{padding:12px 14px;text-align:left}
.hero-card .cat{font-size:11px;color:var(--green-600);font-weight:700}
.hero-card .name{font-size:15px;font-weight:800;color:var(--green-900)}

/* ===== Floating CTA ===== */
.float-cta{position:fixed;right:22px;bottom:30px;z-index:60;background:#fff;border-radius:18px;padding:14px 18px;box-shadow:var(--shadow-lg);border:1px solid var(--gold-100);text-align:center}
.float-cta p{font-size:13px;color:var(--ink-soft);margin-bottom:8px}
.float-cta a{display:block;background:linear-gradient(135deg,var(--gold-500),var(--gold-700));color:#fff;padding:8px 18px;border-radius:999px;font-weight:800;font-size:14px}

/* ===== Section base ===== */
.section{padding:78px 0}
.section.alt{background:linear-gradient(180deg,#fff,#f4fbf4)}
.sec-head{text-align:center;margin-bottom:50px}
.sec-head .tag{display:inline-block;background:var(--green-100);color:var(--green-700);font-weight:700;padding:6px 16px;border-radius:999px;font-size:13px;letter-spacing:1px}
.sec-head h2{font-size:34px;font-weight:900;margin-top:14px;color:var(--green-900)}
.sec-head h2 .mark{color:var(--gold-600)}
.sec-head p{color:var(--ink-soft);margin-top:10px;font-size:16px}

/* ===== Products (mobile-first: 1 col → auto-fit) ===== */
.prod-grid{display:grid;grid-template-columns:1fr;gap:var(--sp-3)}
.prod{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;border:1px solid var(--green-100);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.prod:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.prod:focus-within{outline:3px solid var(--green-500);outline-offset:2px}
.prod .ph{aspect-ratio:3/4;overflow:hidden;background:linear-gradient(180deg,#f6f0e3,#fff);display:grid;place-items:center;padding:var(--sp-2)}
.prod .ph img{max-height:100%;max-width:100%;width:auto;object-fit:contain;transition:transform .3s var(--ease)}
.prod:hover .ph img{transform:scale(1.04)}
.prod .pb{padding:var(--sp-2) var(--sp-3);display:flex;flex-direction:column;gap:var(--sp-1);flex:1}
.prod .cat{font-size:var(--fs-sm);color:var(--green-600);font-weight:700;letter-spacing:.5px}
.prod .pb h3{font-size:var(--fs-md);color:var(--green-900);line-height:1.3}
.prod .pb .desc{font-size:var(--fs-sm);color:var(--ink-soft)}
.prod .pb .kg{margin-top:auto;font-size:var(--fs-sm);color:var(--gold-700);font-weight:700}
@media(min-width:576px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:992px){.prod-grid{grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}}

/* ===== About / Contact shared ===== */
.about-grid,.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-grid img,.contact-grid img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-md)}
.about-text h2{font-size:30px;color:var(--green-900);font-weight:900;margin-bottom:16px}
.about-text p{color:var(--ink-soft);margin-bottom:14px}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.about-stats .s{background:#fff;border-radius:var(--radius);padding:22px;text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--green-100)}
.about-stats .num{font-size:32px;font-weight:900;color:var(--green-700)}
.about-stats .lbl{font-size:13px;color:var(--ink-soft);margin-top:4px}
.timeline{margin-top:24px;border-left:3px solid var(--gold-400);padding-left:22px;display:grid;gap:18px}
.timeline .it{position:relative}
.timeline .it::before{content:"";position:absolute;left:-30px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--green-600);box-shadow:0 0 0 4px var(--green-100)}
.timeline .yr{font-weight:900;color:var(--green-700)}
.timeline .tx{font-size:14px;color:var(--ink-soft)}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.contact-info{display:grid;gap:16px;align-content:center}
.cbox{background:#fff;border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-sm);display:flex;gap:16px;align-items:flex-start;border:1px solid var(--green-100)}
.cbox .ico{font-size:26px;background:var(--green-100);color:var(--green-700);width:50px;height:50px;border-radius:12px;display:grid;place-items:center;flex:none}
.cbox h4{font-size:16px;color:var(--green-900)}
.cbox p{font-size:14px;color:var(--ink-soft)}
.map{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);min-height:320px;background:linear-gradient(135deg,var(--green-100),var(--earth))}
.map #leaflet-map{width:100%;height:100%;min-height:320px}
.map .leaflet-container{border-radius:var(--radius);font-family:inherit}
.map .leaflet-popup-content{font-size:14px;line-height:1.5}
.contact-banner{margin-top:40px;background:linear-gradient(135deg,var(--green-700),var(--green-900));border-radius:var(--radius);padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:var(--shadow-md)}
.contact-banner .cb-text h3{color:#fff;font-size:22px;margin-bottom:8px}
.contact-banner .cb-text p{color:#cfe6d0;font-size:14px;max-width:520px}
.contact-banner .cb-call{background:linear-gradient(135deg,var(--gold-400),var(--gold-600));color:#3a2a00;font-weight:900;font-size:18px;text-decoration:none;padding:14px 28px;border-radius:12px;white-space:nowrap;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.contact-banner .cb-call:hover{filter:brightness(1.05)}

/* ===== Footer ===== */
.footer{background:var(--green-900);color:#d6e9d7;padding:48px 0 24px}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.footer h4{color:var(--gold-400);font-size:16px;margin-bottom:14px}
.footer a{color:#d6e9d7;display:block;font-size:14px;margin-bottom:8px;opacity:.9}
.footer a:hover{color:var(--gold-400)}
.footer .copy{margin-top:36px;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:13px;text-align:center;opacity:.8}

/* ===== Responsive ===== */
@media(max-width:980px){
  .hero h1{font-size:38px}
  .hero-products{gap:14px}
  .hero-card{width:150px}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr 1fr}
  .float-cta{display:none}
}
@media(max-width:640px){
  .navlinks{position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px;display:none;box-shadow:var(--shadow-md)}
  .navlinks.show{display:flex}
  .nav .cta{display:none}
  .nav-toggle{display:block}
  .hero h1{font-size:30px}
  .hero-card{width:130px}
  .hero-card:nth-child(2),.hero-card:nth-child(4){transform:none}
  .about-stats,.footer .cols{grid-template-columns:1fr}
}