:root{
  --green-900:#0A2A1F;
  --green-800:#0F3D2E;
  --green-700:#155439;
  --green-600:#1B6B4C;
  --green-500:#2E9E6B;
  --green-400:#3FBF85;
  --green-50:#F3F8F5;
  --ink:#0E1A14;
  --muted:#5E6F66;
  --line:#E5EDE8;
  --white:#ffffff;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased;}
a{text-decoration:none;color:inherit;}
img{display:block;max-width:100%;}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:16px 6vw;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:.35s;}
.nav.scrolled{background:rgba(255,255,255,.92);border-color:var(--line);padding:12px 6vw;}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;font-size:19px;letter-spacing:.5px;color:var(--green-800);}
.brand .mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--green-600),var(--green-400));display:flex;align-items:center;justify-content:center;color:#fff;font-size:17px;}
.nav-links{display:flex;gap:28px;font-size:14.5px;color:var(--muted);}
.nav-links a{position:relative;transition:.25s;}
.nav-links a:hover{color:var(--green-600);}
.nav-links a.active{color:var(--green-600);}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--green-500);transition:.25s;}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-cta{background:var(--green-700);color:#fff;padding:9px 20px;border-radius:30px;font-size:14px;transition:.25s;}
.nav-cta:hover{background:var(--green-600);transform:translateY(-1px);}

/* HERO */
.hero{position:relative;min-height:82vh;display:flex;align-items:center;padding:100px 6vw 56px;background:radial-gradient(120% 120% at 85% 10%,#134034 0%,#0A2A1F 55%,#061C14 100%);color:#fff;overflow:hidden;}
.hero::before{content:"";position:absolute;right:-10%;top:50%;transform:translateY(-50%);width:560px;height:560px;background:radial-gradient(circle,rgba(63,191,133,.16),transparent 60%);}
.hero-orb{position:absolute;right:8%;top:50%;transform:translateY(-50%);width:400px;height:400px;opacity:.9;}
.hero-inner{position:relative;z-index:2;max-width:640px;}
.hero .tag{display:inline-block;font-size:11.5px;letter-spacing:3.5px;color:var(--green-400);border:1px solid rgba(63,191,133,.4);padding:5px 18px;border-radius:30px;margin-bottom:22px;text-transform:uppercase;font-weight:500;}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;font-weight:700;letter-spacing:-1px;margin-bottom:6px;}
.hero h1 span{color:var(--green-400);}
.hero .en-sub{font-size:clamp(11px,1.2vw,13px);letter-spacing:5px;color:rgba(63,191,133,.55);text-transform:uppercase;font-weight:400;margin-bottom:18px;}
.hero p.sub{font-size:15px;color:rgba(255,255,255,.68);max-width:480px;margin-bottom:32px;line-height:1.7;}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary{background:var(--green-500);color:#fff;padding:13px 30px;border-radius:34px;font-size:15px;font-weight:500;transition:.25s;}
.btn-primary:hover{background:var(--green-400);transform:translateY(-2px);}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;padding:13px 30px;border-radius:34px;font-size:15px;transition:.25s;}
.btn-ghost:hover{border-color:var(--green-400);color:var(--green-400);}

/* SECTION SHELL */
section{padding:60px 6vw;}
.sec-head{max-width:720px;margin-bottom:34px;}
.sec-head .eyebrow{font-size:13px;letter-spacing:2px;color:var(--green-600);font-weight:600;margin-bottom:12px;}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:700;letter-spacing:-.5px;line-height:1.2;color:var(--green-900);}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15.5px;}

/* TRUST BAR */
.trust{background:var(--green-50);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 6vw;display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.trust .num{font-size:38px;font-weight:700;color:var(--green-700);line-height:1;}
.trust .lbl{margin-top:6px;font-size:14px;color:var(--muted);}

/* SERVICES */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.svc{border:1px solid var(--line);border-radius:16px;padding:26px 24px;transition:.3s;background:#fff;}
.svc:hover{border-color:var(--green-400);transform:translateY(-4px);box-shadow:0 16px 36px -22px rgba(27,107,76,.35);}
.svc .ico{width:50px;height:50px;border-radius:13px;background:var(--green-50);color:var(--green-600);display:flex;align-items:center;justify-content:center;margin-bottom:18px;}
.svc h3{font-size:18px;font-weight:600;color:var(--green-900);margin-bottom:8px;}
.svc p{font-size:14px;color:var(--muted);}

/* PRODUCTS */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.prod{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#fff;transition:.3s;}
.prod:hover{transform:translateY(-6px);box-shadow:0 22px 46px -28px rgba(15,61,46,.4);}
.prod .ph{height:170px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;letter-spacing:1px;background:linear-gradient(135deg,#0F3D2E,#2E9E6B);position:relative;overflow:hidden;}
.prod:nth-child(2) .ph{background:linear-gradient(135deg,#155439,#3FBF85);}
.prod:nth-child(3) .ph{background:linear-gradient(135deg,#0A2A1F,#1B6B4C);}
.prod .ph::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(255,255,255,.16),transparent 50%);}
.prod .ph img{width:100%;height:100%;object-fit:contain;background:#fff;}
.prod .body{padding:16px 18px 18px;}
.prod .body h3{font-size:17px;font-weight:600;color:var(--green-900);}
.prod .body .desc{font-size:13.5px;color:var(--muted);margin:8px 0 14px;min-height:40px;line-height:1.6;}
.prod .meta{display:flex;justify-content:space-between;align-items:center;}
.prod .price{font-size:19px;font-weight:700;color:var(--green-700);}
.prod .price small{font-size:13px;font-weight:400;color:var(--muted);}
.prod .more{font-size:14px;color:var(--green-600);cursor:pointer;}
.prod .more:hover{text-decoration:underline;}

/* 产品详情弹窗 */
.prod-detail-overlay{display:none;position:fixed;inset:0;z-index:999;background:rgba(10,42,31,.55);backdrop-filter:blur(6px);align-items:center;justify-content:center;padding:6vw;}
.prod-detail-overlay.show{display:flex;}
.prod-detail-card{background:#fff;border-radius:18px;max-width:600px;width:100%;max-height:85vh;overflow-y:auto;display:flex;flex-direction:column;box-shadow:0 30px 60px -15px rgba(10,42,31,.45);}
.prod-detail-img{width:100%;min-height:280px;background:linear-gradient(135deg,#0F3D2E,#2E9E6B);display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;overflow:hidden;}
.prod-detail-img img{width:100%;height:100%;object-fit:contain;background:#f5f7f5;}
.prod-detail-body{padding:28px 32px 32px;}
.prod-detail-body h3{font-size:22px;font-weight:700;color:var(--green-900);margin-bottom:12px;}
.prod-detail-body .pd-desc{color:var(--muted);font-size:15px;line-height:1.75;margin-bottom:18px;}
.prod-detail-body .pd-specs{background:var(--green-50);border-radius:12px;padding:18px 22px;margin-bottom:18px;}
.prod-detail-body .pd-specs h5{font-size:14px;color:var(--green-800);margin-bottom:10px;font-weight:600;}
.prod-detail-body .pd-specs p{font-size:14px;color:var(--ink);line-height:1.9;white-space:pre-line;}
.prod-detail-body .pd-price-row{display:flex;justify-content:space-between;align-items:center;margin-top:8px;}
.prod-detail-body .pd-price{font-size:24px;font-weight:700;color:var(--green-700);}
.prod-detail-close{cursor:pointer;border:none;background:transparent;color:#fff;font-size:28px;position:absolute;top:16px;right:20px;z-index:2;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;transition:.2s;}
.prod-detail-close:hover{background:rgba(255,255,255,.25);}

/* CASES */
.cases{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.case{position:relative;border-radius:14px;overflow:hidden;height:200px;display:flex;align-items:flex-end;color:#fff;transition:.4s;}
.case:hover{transform:scale(1.02);}
.case .ov{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,42,31,.85));transition:.4s;}
.case:hover .ov{background:linear-gradient(180deg,rgba(10,42,31,.2) 0%,rgba(10,42,31,.9));}
.case:nth-child(1){background:linear-gradient(135deg,#134034,#2E9E6B);}
.case:nth-child(2){background:linear-gradient(135deg,#0F3D2E,#1B6B4C);}
.case:nth-child(3){background:linear-gradient(135deg,#155439,#3FBF85);}
.case .cap{position:relative;z-index:2;padding:22px;}
.case .cap .t{font-size:17px;font-weight:600;}
.case .cap .d{font-size:13px;opacity:.85;margin-top:4px;}

/* NEWS */
.news{display:grid;grid-template-columns:1.4fr 1fr;gap:22px;}
.news-feature{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,#0F3D2E,#1B6C4E);color:#fff;height:300px;display:flex;flex-direction:column;}
.nf-scroll{overflow:hidden;flex:1;position:relative;padding:24px 32px 0;}
.nf-scroll.paused .nf-scroll-inner{animation-play-state:paused!important;}
.nf-scroll-inner{animation:nfScrollUp 20s linear infinite;}
@keyframes nfScrollUp{from{transform:translateY(0)}to{transform:translateY(-50%)}}
.nf-scroll-item{padding:16px 0;border-bottom:1px solid rgba(255,255,255,.14);display:flex;flex-direction:column;gap:6px;flex-shrink:0;cursor:pointer;transition:.2s;}
.nf-scroll-item:last-child{border-bottom:none;}
.nf-scroll-item:hover{background:rgba(63,191,133,.15);border-radius:8px;padding-left:12px;padding-right:12px;margin:0 -12px;}
.news-feature .nf-date{font-size:13px;color:var(--green-400);font-weight:600;letter-spacing:.5px;}
.news-feature .nf-title{font-size:17.5px;font-weight:700;line-height:1.35;}
.news-feature .date{font-size:13px;color:var(--green-400);margin-bottom:10px;}
.news-feature h3{font-size:22px;font-weight:600;line-height:1.35;}
.news-feature p{font-size:14px;opacity:.8;margin-top:12px;}
.news-list{display:flex;flex-direction:column;gap:12px;max-height:none;overflow:visible;padding-right:0;scroll-behavior:auto;}
.news-item{border:1px solid var(--line);border-radius:12px;padding:20px 22px;transition:.25s;background:#fff;cursor:pointer;}
.news-item:hover{border-color:var(--green-400);background:var(--green-50);}
.news-list .date{font-size:12.5px;color:var(--green-600);margin-bottom:6px;}
.news-list h4{font-size:15.5px;font-weight:600;color:var(--green-900);}
/* 右侧列表分页 */
.news-pager{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);}
.news-pager .pg-btn{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:.2s;}
.news-pager .pg-btn:hover:not(.disabled){border-color:var(--green-400);color:var(--green-600);background:var(--green-50);}
.news-pager .pg-btn.disabled{opacity:.35;cursor:default;}
.news-pager .pg-info{font-size:13px;color:var(--muted);font-weight:500;}

/* ABOUT + CONTACT */
.contact{background:var(--green-50);overflow:visible;padding-bottom:40px;}
.contact-wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:44px;background:#fff;border-radius:20px;padding:46px 46px 56px;box-shadow:0 18px 50px -40px rgba(15,61,46,.4);overflow:visible;}
.contact .info h2{font-size:28px;font-weight:700;color:var(--green-900);margin-bottom:10px;line-height:1.25;}
.contact .info>p{color:var(--muted);font-size:15px;margin-bottom:24px;}
.contact .stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:24px;}
.contact .stats .s{border-left:3px solid var(--green-400);padding-left:14px;}
.contact .stats .s .n{font-size:26px;font-weight:700;color:var(--green-700);}
.contact .stats .s .l{font-size:13px;color:var(--muted);}
.contact .row{display:flex;gap:12px;margin-bottom:16px;align-items:flex-start;}
.contact .row .ic{width:40px;height:40px;border-radius:10px;background:var(--green-50);color:var(--green-600);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact .row .t{font-size:13px;color:var(--muted);}
.contact .row .v{font-size:15px;color:var(--green-900);font-weight:500;margin-top:2px;}
.qr{background:none;border-radius:16px;display:block;position:relative;overflow:visible;padding:0;}
.qr .promo-img{width:100%;border-radius:16px;display:block;object-fit:cover;min-height:300px;}
.qr .promo-slider{position:relative;width:100%;border-radius:16px;overflow:hidden;min-height:300px;display:block;}
.qr .promo-slider img{position:absolute;top:0;left:0;width:100%;height:300px;object-fit:cover;border-radius:16px;opacity:0;transition:opacity .9s ease;display:block;}
.qr .promo-slider img.active{opacity:1;}
.qr .qr-circle{position:absolute;bottom:0;right:0;width:134px;height:134px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;z-index:3;box-shadow:0 6px 24px rgba(0,0,0,.15),0 2px 8px rgba(0,0,0,.08);border:3px solid var(--green-400);overflow:hidden;flex-shrink:0;}
.qr .qr-circle img{width:88%;height:88%;object-fit:contain;}
.qr .slogan-capsule{position:absolute;bottom:58px;left:20%;right:150px;display:flex;align-items:center;font-size:19px;font-weight:700;color:#0F3D2E;letter-spacing:1px;cursor:pointer;transition:.25s;z-index:2;}
.qr .slogan-capsule:hover{color:var(--green-600);}

/* 资讯详情弹窗 */
.news-detail-overlay{display:none;position:fixed;inset:0;z-index:999;background:rgba(10,42,31,.55);backdrop-filter:blur(6px);align-items:center;justify-content:center;padding:6vw;}
.news-detail-overlay.show{display:flex;}
.news-detail-card{background:#fff;border-radius:18px;max-width:620px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:0 30px 60px -15px rgba(10,42,31,.45);}
.news-detail-body{padding:36px 38px 40px;}
.news-detail-body .nd-date{font-size:13px;color:var(--green-600);margin-bottom:12px;font-weight:600;}
.news-detail-body h3{font-size:24px;font-weight:700;color:var(--green-900);line-height:1.35;margin-bottom:18px;}
.news-detail-body .nd-content{font-size:15.5px;color:var(--ink);line-height:1.9;}
.news-detail-close{cursor:pointer;border:none;background:transparent;color:#fff;font-size:28px;position:absolute;top:16px;right:20px;z-index:2;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;transition:.2s;}
.news-detail-close:hover{background:rgba(255,255,255,.25);}

/* FOOTER */
footer{background:var(--green-900);color:rgba(255,255,255,.7);padding:52px 6vw 30px;}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:34px;}
.foot-grid .f-brand{font-size:20px;font-weight:600;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.foot-grid p{font-size:14px;line-height:1.7;}
.foot-grid h5{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;}
.foot-grid a{display:block;font-size:14px;color:rgba(255,255,255,.65);margin-bottom:9px;transition:.2s;}
.foot-grid a:hover{color:var(--green-400);}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;font-size:13px;flex-wrap:wrap;gap:10px;}
.foot-bottom a{color:rgba(255,255,255,.5);}

/* REVEAL ANIM */
.reveal{opacity:0;transform:translateY(24px);transition:.7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}

/* MOBILE TABBAR (底部固定导航，仅手机端显示) */
.mobile-tabbar{display:none;}
.mobile-tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11px;color:var(--muted);padding:8px 0 calc(8px + env(safe-area-inset-bottom,0px));transition:.2s;}
.mobile-tabbar a svg{width:22px;height:22px;stroke:currentColor;}
.mobile-tabbar a.active{color:var(--green-600);}

@media(max-width:900px){
  .nav-links,.nav-cta{display:none;}
  .trust{grid-template-columns:repeat(2,1fr);}
  .services,.prod-grid,.cases{grid-template-columns:1fr;}
  .news,.contact-wrap{grid-template-columns:1fr;}
  /* 底部导航 */
  body{padding-bottom:66px;}
  .mobile-tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:200;background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(14px);border-top:1px solid var(--line);box-shadow:0 -2px 16px -8px rgba(10,42,31,.25);}

  /* === 首屏 === */
  .hero{min-height:auto;padding:64px 4vw 26px;align-items:flex-start;}
  .hero h1{font-size:25px;line-height:1.25;margin-bottom:8px;}
  .hero .en-sub{font-size:11px;letter-spacing:3px;margin-bottom:12px;}
  .hero .tag{font-size:10.5px;padding:4px 14px;margin-bottom:16px;}
  .hero-orb{width:160px;opacity:.18;right:-12%;}
  .hero p.sub{font-size:12.5px;margin-bottom:18px;line-height:1.5;}
  .hero-btns{gap:10px;}
  .btn-primary,.btn-ghost{padding:11px 22px;font-size:13px;}

  /* === 全局 section === */
  .sec-head{margin-bottom:14px;}
  .sec-head h2{font-size:clamp(20px,2.8vw,28px);letter-spacing:-.3px;}
  .sec-head p{font-size:13px;margin-top:6px;display:none;} /* 手机隐藏副标题 */
  section{padding:22px 4vw;}

  /* === 信任数据栏：更紧凑 === */
  .trust{padding:18px 4vw;gap:12px;}

  /* === 业务范围：横排3个小卡 === */
  .services{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
  .svc{border-radius:12px;padding:16px 10px 12px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;}
  .svc .ico{width:38px;height:38px;border-radius:9px;margin-bottom:2px;}
  .svc h3{font-size:13px;}
  .svc p{display:none;}

  /* === 产品网格：横排3个 === */
  .prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;}
  .prod{border-radius:10px;}
  .prod .ph{height:100px;}
  .prod .body{padding:10px 8px 12px;text-align:center;}
  .prod .body h3{font-size:12.5px;}
  .prod .body .desc{display:none;}
  .prod .meta{flex-direction:column;gap:4px;align-items:center;}
  .prod .price{font-size:15px;}
  .prod .more{display:none;}

  /* === 案例：横排3个（同产品） === */
  .cases{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;}
  .case{height:140px;border-radius:10px;}
  .case .cap{padding:10px;}
  .case .cap .t{font-size:13px;}
  .case .cap .d{display:none;}

  /* === 新闻/资讯：只展示动态滚动区 === */
  .news{grid-template-columns:1fr;}
  .news-list{display:none;} /* 隐藏右侧列表 */
  .news-pager{display:none;} /* 隐藏分页 */
  .news-feature{height:88px;border-radius:12px;padding:12px 18px 0;}
  .nf-scroll{padding:0;}
  .nf-scroll-item{padding:10px 4px;gap:3px;border-bottom:none;}
  .news-feature .nf-title{font-size:15.5px;line-height:1.35;}
  .news-feature .date,.news-feature h3{display:none;} /* 隐藏特征区标题，只留滚动条 */
  /* 资讯详情弹窗手机适配 */
  .prod-detail-card,.news-detail-card{max-width:100%;border-radius:14px;max-height:90vh;}
  .prod-detail-img{min-height:200px;}

  /* === 关于联系页 === */
  .contact{padding-bottom:16px;padding-top:80px!important;}
  .contact-wrap{padding:18px 14px 24px;gap:18px;border-radius:16px;}
  .contact .info h2{font-size:22px;}
  .contact .info>p{font-size:13px;margin-bottom:16px;}
  .contact .stats{grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px;}
  .contact .stats .s .n{font-size:20px;}
  .contact .stats .s .l{font-size:11.5px;}
  .contact .row{margin-bottom:10px;}
  .contact .row .ic{width:34px;height:34px;border-radius:8px;flex-shrink:0;}
  .contact .row .t{font-size:11.5px;}
  .contact .row .v{font-size:13.5px;}
  /* 推广图区 */
  .qr{overflow:hidden;border-radius:12px;}
  .qr .promo-img,
  .qr .promo-slider{min-height:170px!important;border-radius:12px;}
  .qr .qr-circle{width:76px;height:76px;bottom:8px;right:8px;border-width:2px;}
  .qr .qr-circle img{width:74%;height:74%;}
  .qr .slogan-capsule{
    position:relative!important;
    bottom:auto;left:auto;right:auto;
    display:block;text-align:center;
    font-size:14px;padding:10px 12px;
    margin:0;background:none;
    color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.35);
  }

  /* === Footer 极简 === */
  footer{padding:14px 4vw 66px;}
  .foot-grid{grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:10px;}
  .foot-grid>div:first-child{display:none;}
  .foot-grid h5{font-size:11.5px;margin-bottom:4px;color:rgba(255,255,255,.7);}
  .foot-grid a{font-size:11px;margin-bottom:3px;display:block;padding:1px 0;color:rgba(255,255,255,.55);}
  .foot-grid a:hover{color:var(--green-400);}
  .foot-grid p{display:none;}
  .foot-bottom{font-size:10px;padding-top:8px;flex-direction:row;justify-content:center;gap:6px;flex-wrap:wrap;color:rgba(255,255,255,.38);}
}