:root{--ink:#22251F;--ink2:#4A4F45;--ink3:#8B9086;--line:#E3E2DB;--paper:#F7F6F1;--card:#fff;
--green:#2F7D4F;--green-deep:#25603D;--green-soft:#E6F1E9;--amber:#E8A13C;--radius:12px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei",sans-serif;background:var(--paper);color:var(--ink);line-height:1.65;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .15s}
a:hover{color:var(--green)}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
h1{font-size:clamp(30px,4vw,46px);line-height:1.18;letter-spacing:-.01em}
h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 14px}
h3{font-size:17.5px}
p.sub{font-size:17.5px;color:var(--ink2);max-width:620px}
.muted{color:var(--ink3);font-size:15px;margin-bottom:18px}
.kicker{font-size:13.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--green);margin:0 0 10px}

/* topbar */
.topbar{background:#1E241E;color:#DDE5DC;font-size:13.5px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:40px}
.topbar a{color:#EDF3EC}
.topbar-left{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.topbar-brand{color:#fff;font-weight:700;letter-spacing:.05em;padding-right:14px;margin-right:2px;border-right:1px solid rgba(255,255,255,.22)}
@media(max-width:860px){.topbar .wrap{height:auto;padding:8px 0;flex-wrap:wrap}.topbar-left{gap:12px}}

/* header */
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.bar{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:var(--ink)}
.logo-mark{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,#3E9A63,#2F7D4F);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text small{font-size:10px;font-weight:400;color:var(--ink3);letter-spacing:2px;margin-top:3px}
.nav{display:flex;gap:24px;font-size:15px;flex:1;justify-content:center}
.nav a{color:var(--ink2);padding:6px 0}
.nav a.active,.nav a:hover{color:var(--green-deep)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang{border:1.5px solid var(--line);border-radius:999px;padding:7px 15px;font-size:14px;color:var(--ink2)}
.lang:hover{border-color:var(--green);color:var(--green-deep)}
@media(max-width:960px){.nav{display:none}}

/* buttons */
.btn{display:inline-block;background:var(--green);color:#fff;font-weight:700;font-size:15px;padding:12px 26px;border-radius:10px}
.btn:hover{background:var(--green-deep);color:#fff}
.btn.ghost{background:transparent;color:var(--green-deep);border:1.5px solid var(--green)}
.btn.ghost:hover{background:var(--green-soft)}
.btn.light{background:#fff;color:var(--green-deep)}
.btn.light:hover{background:var(--green-soft)}
.btn-sm{padding:8px 18px;font-size:14px}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}

/* hero */
.hero{background:linear-gradient(180deg,#EFF5EE 0%,var(--paper) 100%);padding:64px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero-img img{border-radius:18px;box-shadow:0 18px 44px rgba(34,37,31,.14)}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:44px auto}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-align:center}
.stat .big{font-size:26px;font-weight:800;color:var(--green-deep)}
.stat .l{font-size:13.5px;color:var(--ink3);margin-top:2px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* feature cards */
.feats,.models-sec,.video-sec,.how,.factory-strip{margin:56px auto}
.f-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.f-grid.three{grid-template-columns:repeat(3,1fr)}
.f-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.f-card h3{margin-bottom:6px}
.f-card p{font-size:14.5px;color:var(--ink2)}
.f-card .num{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:999px;background:var(--green-soft);color:var(--green-deep);font-weight:800;margin-bottom:10px}
@media(max-width:960px){.f-grid{grid-template-columns:repeat(2,1fr)}.f-grid.three{grid-template-columns:1fr}}
@media(max-width:560px){.f-grid{grid-template-columns:1fr}}

/* product cards */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.prod-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:block}
.prod-card img{width:100%;aspect-ratio:4/3;object-fit:cover}
.prod-card .tag{position:absolute;top:12px;left:12px;background:var(--green);color:#fff;font-size:12.5px;font-weight:700;border-radius:999px;padding:4px 12px}
.pc-body{padding:14px 16px 16px}
.pc-body h3{font-size:18px}
.pc-blurb{font-size:13.5px;color:var(--ink3);margin:3px 0 6px}
.pc-specs{font-size:13.5px;color:var(--ink2);margin-bottom:8px}
.more{font-weight:700;color:var(--ink);font-size:14.5px}
.prod-card:hover .more{color:var(--green)}
.prod-card:hover{border-color:var(--green)}
@media(max-width:960px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.prod-grid{grid-template-columns:1fr}}

/* video */
.vwrap{margin-top:14px}
.vwrap video{width:100%;max-width:860px;border-radius:14px;background:#000;display:block}
.vwrap.vert video{max-width:420px}

/* two col */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;margin:26px auto}
.two-col img{border-radius:14px}
@media(max-width:860px){.two-col{grid-template-columns:1fr}}

/* spec table */
.spec{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden;border:1px solid var(--line);margin:14px 0 8px}
.spec td{padding:10px 14px;border-bottom:1px solid var(--line);font-size:14.5px;vertical-align:top}
.spec td:first-child{width:190px;font-weight:700;color:var(--ink2);background:#FBFAF7}
.spec tr:last-child td{border-bottom:0}

/* crumb */
.crumb{font-size:13.5px;color:var(--ink3);padding-top:22px}
.crumb a{color:var(--green-deep)}

/* prod head */
.prod-head{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin:26px auto}
.prod-head img{border-radius:18px}
@media(max-width:860px){.prod-head{grid-template-columns:1fr}}

/* faq */
.faq dt{font-weight:700;margin-top:14px}
.faq dd{color:var(--ink2);font-size:14.5px;margin:4px 0 0 0}

/* factory */
.stat-card{text-align:center}
.stat-card .big{font-size:26px;font-weight:800;color:var(--green-deep)}
section.wrap{padding-top:8px}
section.wrap h1{margin-bottom:10px}

/* factory strip on home */
.factory-strip{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;background:var(--green-soft);border-radius:18px;padding:30px}
.fs-img img{border-radius:14px}
.fs-txt .btn{margin-top:14px}
@media(max-width:860px){.factory-strip{grid-template-columns:1fr}}

/* cta band */
.cta-band{background:linear-gradient(135deg,#2F7D4F,#25603D);color:#fff;margin-top:60px}
.cta-band .wrap{padding:46px 22px;text-align:center}
.cta-band p{max-width:640px;margin:10px auto 20px;color:#DDEEDF;font-size:15.5px}

/* contact */
.c-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:22px 0}
.c-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.c-card h4{font-size:12.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3);margin-bottom:4px}
.c-card p{font-size:16px;font-weight:600}
.note{color:var(--ink3);font-size:14.5px}
@media(max-width:860px){.c-grid{grid-template-columns:repeat(2,1fr)}}

/* footer */
footer{background:#1E241E;color:#C9D2C7;margin-top:70px}
.fgrid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px;padding:44px 22px 30px}
footer h4{color:#fff;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px}
footer a{display:inline-block;margin-bottom:6px;font-size:14.5px}
footer .muted{color:#A9B4A7;font-size:14px;margin:8px 0 0}
.flogo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:21px;color:#fff;margin:0 0 10px}
.flogo .logo-mark{width:38px;height:38px;font-size:17px}
.flogo .logo-text small{color:#A9B4A7}
.copy{border-top:1px solid #333B32;padding:18px 22px;font-size:13px;color:#8E998B}
@media(max-width:860px){.fgrid{grid-template-columns:1fr;gap:22px}}