/* ===== Antongruida Ranch Fence 前台样式 ===== */
:root{
  --green-900:#1b4332; --green-700:#2d6a4f; --green-500:#40916c; --green-200:#95d5b2;
  --green-100:#d8f3dc; --bg:#f6faf7; --card:#fff; --text:#24312b; --muted:#5b6b63;
  --line:#e3ece6; --gold:#c9a227; --radius:12px; --shadow:0 6px 20px rgba(27,67,50,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--green-700);text-decoration:none}
a:hover{color:var(--green-900)}
ul{list-style:none}
.container{max-width:1160px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--green-900)}
.brand-mark{display:flex}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;letter-spacing:.5px}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{padding:8px 12px;border-radius:8px;color:var(--text);font-size:15px;font-weight:500}
.main-nav a:hover{background:var(--green-100);color:var(--green-900)}
.main-nav a.active{background:var(--green-100);color:var(--green-900)}
.main-nav a.nav-cta{background:var(--green-700);color:#fff;font-weight:600}
.main-nav a.nav-cta:hover{background:var(--green-900)}
.lang-switch{position:relative}
.lang-btn{background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:7px 10px;font-size:13px;cursor:pointer;display:flex;align-items:center;gap:6px;color:var(--text)}
.lang-globe{font-size:15px}
.lang-menu{display:none;position:absolute;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);min-width:150px;padding:6px;z-index:120}
.lang-switch.open .lang-menu{display:block}
.lang-menu a{display:block;padding:8px 12px;border-radius:6px;font-size:14px;color:var(--text)}
.lang-menu a:hover{background:var(--green-100)}
.lang-menu a.on{color:var(--green-700);font-weight:700}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--green-900);border-radius:2px}

/* Hero */
.hero{position:relative;color:#fff;min-height:520px;display:flex;align-items:center;background:var(--green-900)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.hero-inner{position:relative;z-index:2;padding:70px 20px;max-width:1160px;margin:0 auto;width:100%}
.hero h1{font-size:44px;line-height:1.15;max-width:760px;font-weight:800}
.hero p{font-size:19px;max-width:640px;margin:18px 0 28px;color:#e6f2ea}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-block;padding:11px 24px;border-radius:9px;font-size:15px;font-weight:600;cursor:pointer;border:2px solid transparent;transition:.18s}
.btn-primary{background:var(--green-700);color:#fff}
.btn-primary:hover{background:var(--green-900);color:#fff}
.btn-outline{border-color:#fff;color:#fff;background:transparent}
.btn-outline:hover{background:#fff;color:var(--green-900)}
.btn-lg{padding:14px 32px;font-size:16px}
.btn-block{display:block;text-align:center;margin-top:14px}

/* Stats */
.stats-bar{background:var(--green-900);color:#fff;border-top:1px solid rgba(255,255,255,.12)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:34px 20px}
.stat{text-align:center}
.stat strong{display:block;font-size:34px;color:var(--green-200);font-weight:800}
.stat span{font-size:13px;color:#cfe6d8;letter-spacing:.4px}

/* Sections */
.section{padding:64px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{text-align:center;margin-bottom:40px}
.section-head h2{font-size:30px;color:var(--green-900);margin-bottom:8px}
.section-head p{color:var(--muted);max-width:620px;margin:0 auto}

/* Category cards */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 26px;text-align:center;color:var(--text);transition:.2s;display:block}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--green-200);color:var(--text)}
.cat-icon{width:84px;height:84px;margin:0 auto 18px;border-radius:22px;background:var(--green-100);color:var(--green-700);display:flex;align-items:center;justify-content:center}
.cat-card h3{font-size:19px;margin-bottom:8px;color:var(--green-900)}
.cat-link{color:var(--green-700);font-weight:600;font-size:14px}

/* Product grid */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.product-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--text);display:flex;flex-direction:column;transition:.2s}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--green-200);color:var(--text)}
.product-img{background:#fff;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;padding:16px}
.product-img img{max-height:230px;object-fit:contain;width:100%}
.product-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);flex:1}
.model-tag{display:inline-block;background:var(--green-100);color:var(--green-900);font-size:12px;font-weight:700;padding:3px 9px;border-radius:20px;align-self:flex-start;letter-spacing:.3px}
.product-body h3{font-size:16px;color:var(--green-900);line-height:1.35}
.product-body p{font-size:13.5px;color:var(--muted);flex:1}
.product-link{color:var(--green-700);font-weight:700;font-size:14px}

/* Why */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;text-align:center}
.why-icon{width:58px;height:58px;margin:0 auto 14px;border-radius:50%;background:var(--green-100);color:var(--green-700);display:flex;align-items:center;justify-content:center}
.why-item h3{font-size:16.5px;color:var(--green-900);margin-bottom:6px}
.why-item p{font-size:13.5px;color:var(--muted)}

/* Applications */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.app-card{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--green-500);border-radius:10px;padding:22px}
.app-card h3{font-size:16.5px;color:var(--green-900);margin-bottom:8px}
.app-card p{font-size:13.5px;color:var(--muted)}
.app-row{display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:center;padding:34px 0;border-bottom:1px solid var(--line)}
.app-row:last-child{border-bottom:0}
.app-row.reverse{grid-template-columns:1fr 300px}
.app-row.reverse .app-illus{order:2}
.app-illus{display:flex;align-items:center;justify-content:center;border-radius:var(--radius);min-height:180px}
.app-content h2{color:var(--green-900);font-size:24px;margin-bottom:10px}
.app-content p{color:var(--muted);margin-bottom:18px;max-width:620px}

/* CTA */
.cta-band{background:linear-gradient(120deg,var(--green-900),var(--green-700));color:#fff;padding:60px 0;text-align:center}
.cta-inner h2{font-size:30px;margin-bottom:10px}
.cta-inner p{color:#dcefe4;max-width:620px;margin:0 auto 24px}

/* Page hero */
.page-hero{background:linear-gradient(120deg,var(--green-900),var(--green-700));color:#fff;padding:52px 0}
.page-hero.compact{padding:34px 0}
.page-hero h1{font-size:34px;margin-bottom:6px}
.page-hero p{color:#dcefe4;max-width:680px}
.crumbs{font-size:13px;color:#cfe6d8;margin-bottom:6px}
.crumbs a{color:#fff}

/* Layout sidebar */
.layout-sidebar{display:grid;grid-template-columns:250px 1fr;gap:34px;align-items:start}
.sidebar{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;position:sticky;top:92px}
.sidebar h3{font-size:16px;color:var(--green-900);margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side-nav a{display:block;padding:9px 12px;border-radius:8px;color:var(--text);font-size:14.5px;margin-bottom:2px}
.side-nav a:hover{background:var(--green-100)}
.side-nav a.on{background:var(--green-700);color:#fff}
.contact-info ul li{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted)}
.contact-info ul li:last-child{border-bottom:0}
.content-main h2{color:var(--green-900);font-size:24px;margin-bottom:22px}
.empty{color:var(--muted);padding:40px 0;text-align:center}

/* Product detail */
.product-detail{display:grid;grid-template-columns:420px 1fr;gap:40px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.pd-img{background:#fff;border:1px solid var(--line);border-radius:10px;display:flex;align-items:center;justify-content:center;aspect-ratio:1/1;padding:20px}
.pd-img img{max-height:340px;object-fit:contain;width:100%}
.pd-model{font-size:15px;color:var(--muted);margin-bottom:12px}
.pd-summary{font-size:16px;color:var(--text);margin-bottom:18px}
.pd-cta{margin-bottom:24px}
.pd-specs h3{font-size:18px;color:var(--green-900);margin-bottom:12px}
.pd-specs table{width:100%;border-collapse:collapse;font-size:14px}
.pd-specs th,.pd-specs td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.pd-specs th{background:var(--green-100);width:42%;color:var(--green-900)}
.pd-desc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;margin-top:24px}
.pd-desc h3{color:var(--green-900);font-size:20px;margin-bottom:12px}
.pd-desc p{margin-bottom:10px;color:var(--text)}
.related-block{margin-top:36px}
.related-block h3{color:var(--green-900);font-size:20px;margin-bottom:16px}

/* Forms */
.inquiry-form{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-full{grid-column:1/-1}
.form-field label{font-size:13.5px;font-weight:600;color:var(--green-900)}
.form-field input,.form-field select,.form-field textarea{padding:10px 12px;border:1px solid #c8d8cf;border-radius:8px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--text)}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:2px solid var(--green-200);border-color:var(--green-500)}
.inquiry-form .btn{margin-top:22px}

/* Alert */
.alert{border-radius:10px;padding:16px 18px;margin-bottom:22px;font-size:14.5px}
.alert-success{background:#e8f5e9;border:1px solid #a5d6a7;color:#1b5e20}
.alert-error{background:#fdecea;border:1px solid #ef9a9a;color:#b71c1c}

/* Footer */
.site-footer{background:var(--green-900);color:#d9e9e0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding:52px 20px 40px}
.f-brand{font-size:18px;font-weight:800;letter-spacing:.5px;color:#fff;margin-bottom:12px}
.f-brand span{display:block;font-size:11.5px;font-weight:400;letter-spacing:1.5px;text-transform:uppercase;color:var(--green-200)}
.f-col p{font-size:13.5px;color:#bfd5c8;max-width:260px}
.f-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.f-col ul li{margin-bottom:8px}
.f-col ul a{color:#bfd5c8;font-size:14px}
.f-col ul a:hover{color:#fff}
.f-contact li{font-size:14px;color:#bfd5c8}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:18px 0;font-size:12.5px;color:#93b5a3}
.footer-bottom .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-langs a{color:var(--green-200);margin:0 2px}
.footer-langs a:hover{color:#fff}

/* Responsive */
@media (max-width:960px){
  .cat-grid,.why-grid,.app-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .product-detail{grid-template-columns:1fr}
  .layout-sidebar{grid-template-columns:1fr}
  .sidebar{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .main-nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:14px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08);align-items:stretch}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px;border-radius:8px}
  .hero h1{font-size:30px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:14px}
  .app-row,.app-row.reverse{grid-template-columns:1fr}
  .app-row.reverse .app-illus{order:0}
  .form-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .cat-grid,.why-grid,.app-grid,.grid-3{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-text small{display:none}
}