:root{--ink:#173229;--deep:#0d3327;--green:#0f7655;--green2:#2aa678;--mint:#e8f5ef;--cream:#f7f5ee;--line:#d8e4de;--white:#fff;--muted:#65766f;--shadow:0 18px 50px rgba(18,57,43,.12);--radius:22px;--max:1180px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fbfcfa;font-family:Inter,"Segoe UI",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
body:not(.zh) .lang-zh,body.zh .lang-en{display:none!important}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.skip{position:absolute;left:-999px;top:0}.skip:focus{left:16px;top:10px;background:#fff;padding:10px;z-index:99}
.topbar{background:var(--deep);color:#d7ede4;font-size:12px;letter-spacing:.05em}
.topbar .container{display:flex;justify-content:space-between;gap:16px;padding:8px 0}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(15,118,85,.12);backdrop-filter:blur(16px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:26px}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto;font-weight:850;letter-spacing:-.03em}.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(145deg,var(--green2),var(--deep));display:grid;place-items:center;color:#fff;font-size:18px}.brand small{display:block;color:var(--muted);font-weight:600;font-size:9px;letter-spacing:.14em;text-transform:uppercase;margin-top:-3px}
.nav-links{display:flex;align-items:center;gap:20px;font-size:14px;font-weight:650}.nav-links a{padding:25px 0;border-bottom:2px solid transparent}.nav-links a:hover,.nav-links a.active{color:var(--green);border-color:var(--green)}
.lang-toggle,.menu-toggle{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:8px 12px;cursor:pointer}.menu-toggle{display:none;font-size:20px;line-height:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:999px;padding:12px 20px;font-weight:750;cursor:pointer;transition:.2s}.btn:hover{transform:translateY(-2px)}.btn-primary{background:var(--green);color:#fff;box-shadow:0 10px 22px rgba(15,118,85,.22)}.btn-light{background:#fff;color:var(--green)}.btn-outline{border:1px solid var(--green);color:var(--green);background:transparent}.btn-sm{padding:9px 15px;font-size:13px}
.hero{overflow:hidden;background:linear-gradient(110deg,#eff8f4 0,#fbfcfa 55%,#f4eee2 100%)}
.hero-grid{min-height:640px;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:40px;padding:70px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.eyebrow:before{content:"";width:30px;height:2px;background:var(--green2)}
h1,h2,h3{line-height:1.08;letter-spacing:-.04em;margin:0 0 .55em}h1{font-size:clamp(44px,6vw,76px)}h2{font-size:clamp(32px,4.2vw,52px)}h3{font-size:23px}.lead{font-size:18px;color:var(--muted);max-width:650px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:42px}.hero-meta strong{display:block;font-size:24px;color:var(--deep)}.hero-meta span{font-size:12px;color:var(--muted)}
.hero-visual{position:relative}.hero-visual img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:48% 48% 30px 30px;box-shadow:var(--shadow)}.hero-note{position:absolute;left:-25px;bottom:36px;background:#fff;border-radius:16px;padding:16px 20px;box-shadow:var(--shadow);max-width:220px}.hero-note strong{display:block;color:var(--green)}
.section{padding:96px 0}.section-sm{padding:64px 0}.section-tint{background:var(--cream)}.section-green{background:var(--deep);color:#fff}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:42px}.section-head p{max-width:560px;color:var(--muted);margin:0}.section-green .section-head p{color:#b8d2c8}.kicker{color:var(--green);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;margin-bottom:12px}.section-green .kicker{color:#6ed3ad}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.card-media{background:linear-gradient(145deg,#eef6f2,#f8f4ea);height:275px;display:grid;place-items:center;padding:24px}.card-media img{height:100%;width:100%;object-fit:contain}.card-body{padding:26px}.card-tag{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--green)}.card p{color:var(--muted)}.card-link{display:inline-flex;gap:6px;color:var(--green);font-weight:750}
.stat{padding:26px;border-left:1px solid rgba(255,255,255,.18)}.stat strong{font-size:36px;display:block;color:#fff}.stat span{color:#b8d2c8;font-size:13px}.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.feature{padding:26px;background:#fff;border:1px solid var(--line);border-radius:18px}.feature-icon{width:44px;height:44px;border-radius:13px;background:var(--mint);color:var(--green);display:grid;place-items:center;font-weight:900;margin-bottom:24px}.feature p{color:var(--muted);margin-bottom:0}
.page-hero{background:linear-gradient(120deg,#e9f5ef,#fbfcfa 60%,#f5efe2);padding:88px 0 72px}.page-hero .container{max-width:1000px}.page-hero h1{font-size:clamp(42px,6vw,70px)}.breadcrumbs{font-size:12px;color:var(--muted);margin-bottom:28px}.breadcrumbs a{color:var(--green)}
.product-hero{padding:64px 0;background:linear-gradient(120deg,#edf7f2,#fff)}.product-grid{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:65px}.product-art{background:linear-gradient(145deg,#e9f4ef,#f7f1e8);border-radius:32px;padding:42px;min-height:480px;display:grid;place-items:center}.product-art img{max-height:420px;object-fit:contain}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:28px 0}.metric{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}.metric strong{display:block;font-size:17px}.metric span{color:var(--muted);font-size:12px}
.pill-row{display:flex;flex-wrap:wrap;gap:8px}.pill{padding:7px 11px;background:var(--mint);color:var(--green);border-radius:999px;font-size:12px;font-weight:700}
.spec-table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 0 0 1px var(--line)}.spec-table th,.spec-table td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top}.spec-table th{width:30%;color:var(--green);font-size:13px;background:#f6faf8}.spec-table tr:last-child>*{border-bottom:0}
.compare-wrap{overflow:auto;border:1px solid var(--line);border-radius:18px}.compare{width:100%;border-collapse:collapse;min-width:760px;background:#fff}.compare th,.compare td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left}.compare thead th{background:var(--deep);color:#fff}.compare td:first-child{font-weight:750}.compare tr:last-child td{border-bottom:0}
.check-list{list-style:none;padding:0;margin:24px 0}.check-list li{position:relative;padding:8px 0 8px 30px}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:900}
.process{counter-reset:step}.process-item{display:grid;grid-template-columns:70px 1fr;gap:22px;padding:27px 0;border-bottom:1px solid var(--line)}.process-item:before{counter-increment:step;content:"0" counter(step);font-size:28px;color:var(--green);font-weight:850}
.download-card{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:34px;border-radius:24px;background:var(--deep);color:#fff}.download-card p{color:#b8d2c8;margin-bottom:0}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.contact-card{background:var(--deep);color:#fff;padding:38px;border-radius:24px}.contact-card a{display:block;font-size:18px;margin:14px 0;color:#aee6d0}.form-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:34px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.field{display:flex;flex-direction:column;gap:7px}.field.full{grid-column:1/-1}.field label{font-size:12px;font-weight:800;color:var(--deep)}.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:11px;padding:12px 13px;background:#fbfcfa;color:var(--ink)}.field textarea{min-height:120px;resize:vertical}.form-note{font-size:12px;color:var(--muted)}
.cta{background:linear-gradient(115deg,var(--green),var(--deep));color:#fff;border-radius:30px;padding:55px;display:flex;justify-content:space-between;align-items:center;gap:30px}.cta p{color:#c4ddd3;margin:0;max-width:640px}
.footer{background:#071f18;color:#bdd1c9;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}.footer h4{color:#fff;margin:0 0 16px}.footer a{display:block;margin:8px 0;font-size:13px}.footer .brand{color:#fff;margin-bottom:18px}.footer-bottom{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.1);margin-top:42px;padding-top:20px;font-size:12px}
.notice{font-size:12px;color:var(--muted);margin-top:20px}.empty-space{height:8px}
@media(max-width:980px){.nav-links{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;padding:20px 26px;flex-direction:column;align-items:flex-start;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-links a{padding:5px 0}.menu-toggle{display:block}.nav-quote{display:none}.hero-grid,.product-grid,.split,.contact-grid{grid-template-columns:1fr}.hero-grid{padding:55px 0}.hero-visual{max-width:650px}.grid-4{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.container{width:min(100% - 28px,var(--max))}.topbar .container span:first-child{display:none}.nav-wrap{height:66px;gap:10px}.brand small{display:none}.nav-links{top:66px}.section{padding:70px 0}.section-sm{padding:48px 0}.hero-grid{min-height:auto}.hero-note{left:10px;bottom:10px}.grid-3,.grid-4,.stats,.form-grid{grid-template-columns:1fr}.section-head,.cta,.download-card{align-items:flex-start;flex-direction:column}.stats .stat{border-left:0;border-top:1px solid rgba(255,255,255,.18)}.product-art{min-height:350px;padding:25px}.product-art img{max-height:320px}.spec-table th,.spec-table td{display:block;width:100%}.spec-table th{padding-bottom:5px}.spec-table td{padding-top:5px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px}.cta{padding:36px 26px}}