/* ============================================================
   青桐齐盛 AURATREE — 官网样式 v2（白底基调）
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  /* 品牌主色 VI: C95 M52 Y100 K20 ≈ #0A6200 */
  --green-900:#05340F;
  --green-800:#0A6200;
  --green-700:#0E7A17;
  --green-600:#149926;
  --green-100:#E7F3E9;
  --green-50:#F2F8F3;

  --ink:#0C120E;          /* 正文深墨 */
  --muted:#5C6B61;        /* 次级文字 */
  --line:#E2EAE5;         /* 分隔线 */
  --line-2:#D3DFD7;
  --paper:#FFFFFF;
  --paper-2:#F6F9F7;

  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 2px 10px rgba(12,18,14,.05);
  --shadow:0 14px 36px rgba(12,18,14,.09);

  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;

  --nav-h:74px;
  --ease:cubic-bezier(.22,.75,.28,1);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-sans);
  background:var(--paper);color:var(--ink);
  line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--green-800);color:#fff}

.container{width:min(1280px,100% - 44px);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- 3. 通用 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--green-700);font-weight:700;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--green-700)}
.sec{padding:clamp(56px,7vw,92px) 0}
.sec-alt{background:var(--paper-2)}
.sec-head{margin-bottom:clamp(30px,4vw,48px)}
.sec-head.center{text-align:center}
.sec-head.center .sec-desc{margin-inline:auto}
.sec-title{
  margin-top:12px;font-family:var(--font-serif);
  font-size:clamp(26px,3.4vw,40px);line-height:1.3;font-weight:700;
}
.sec-desc{margin-top:14px;max-width:720px;font-size:15.5px;color:var(--muted)}
.sec-head.center .eyebrow{justify-content:center}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:8px;font-size:15px;font-weight:600;
  transition:transform .3s var(--ease),box-shadow .3s,background .25s,color .25s,border-color .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--green-800);color:#fff;box-shadow:0 8px 22px rgba(10,98,0,.22)}
.btn-primary:hover{background:var(--green-700);box-shadow:0 14px 30px rgba(10,98,0,.3)}
.btn-outline{border:1.5px solid var(--green-800);color:var(--green-800);background:transparent}
.btn-outline:hover{background:var(--green-800);color:#fff}
.btn-white{background:#fff;color:var(--green-800)}
.btn-white:hover{box-shadow:0 14px 30px rgba(0,0,0,.22)}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 4. 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:80;height:var(--nav-h);
  display:flex;align-items:center;background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
  transition:box-shadow .3s;
}
.nav.is-scrolled{box-shadow:0 4px 20px rgba(12,18,14,.07)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{height:56px;width:auto}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-menu a{
  position:relative;padding:8px 13px;border-radius:7px;font-size:14.5px;color:var(--muted);
  transition:color .25s,background .25s;
}
.nav-menu a:hover{color:var(--green-800);background:var(--green-50)}
.nav-menu a.is-active{color:var(--green-800);font-weight:600}
.nav-menu a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  background:var(--green-800);border-radius:2px;
}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-tel{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:700;color:var(--green-800);white-space:nowrap}
.nav-tel svg{width:17px;height:17px}
.burger{display:none;width:42px;height:42px;border-radius:9px;border:1px solid var(--line);place-items:center}
.burger span{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink)}
.burger span::before{top:-6px}.burger span::after{top:6px}
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;padding:calc(var(--nav-h) + 20px) 26px 26px;
  display:none;flex-direction:column;gap:2px;
}
.drawer.open{display:flex}
.drawer a{padding:15px 2px;font-size:18px;border-bottom:1px solid var(--line)}
.drawer .drawer-tel{margin-top:22px;color:var(--green-800);font-weight:700;border:0;font-size:19px}

/* ---------- 5. 悬浮条 ---------- */
.floatbar{position:fixed;right:18px;top:50%;translate:0 -50%;z-index:70;display:flex;flex-direction:column;gap:9px}
.floatbar a,.floatbar button{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
  color:var(--green-800);transition:transform .28s var(--ease),box-shadow .28s,background .25s;
}
.floatbar a:hover,.floatbar button:hover{transform:translateY(-3px);background:var(--green-800);color:#fff;box-shadow:var(--shadow)}
.floatbar svg{width:20px;height:20px}
.floatbar li{position:relative}
.floatbar .fb-label{
  position:absolute;right:calc(100% + 9px);top:50%;translate:0 -50%;white-space:nowrap;
  padding:6px 11px;border-radius:7px;font-size:13px;background:var(--green-800);color:#fff;
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;transform:translateX(6px);
}
.floatbar li:hover .fb-label{opacity:1;transform:none}
.floatbar .to-top{opacity:0;pointer-events:none;transition:opacity .35s}
.floatbar .to-top.show{opacity:1;pointer-events:auto}

/* ---------- 6. HERO（传统全幅 Banner） ---------- */
.hero{position:relative;margin-top:var(--nav-h);background:var(--green-900);overflow:hidden}
.hero-media{position:absolute;inset:0}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(4,20,9,.92) 0%,rgba(4,20,9,.72) 38%,rgba(4,20,9,.25) 68%,rgba(4,20,9,.10) 100%);
}
.hero-in{position:relative;z-index:2;padding:clamp(56px,9vw,104px) 0}
.hero-in .eyebrow{color:#7CFFC4}
.hero-in .eyebrow::before{background:#7CFFC4}
.hero h1{
  margin-top:16px;max-width:640px;color:#fff;
  font-family:var(--font-serif);font-size:clamp(32px,5vw,58px);line-height:1.2;font-weight:700;
}
.hero h1 em{font-style:normal;color:#7CFFC4}
.hero-sub{margin-top:18px;max-width:560px;font-size:16px;color:rgba(255,255,255,.86)}
.hero-cta{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap}
.hero-badges{margin-top:34px;display:flex;gap:26px;flex-wrap:wrap}
.hero-badges div b{display:block;font-size:24px;color:#fff;line-height:1.2}
.hero-badges div span{font-size:12.5px;color:rgba(255,255,255,.7)}

/* ---------- 7. 代理品牌条 ---------- */
.brandstrip{border-bottom:1px solid var(--line);background:#fff}
.bs-in{padding:26px 0;display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.bs-label{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--muted);white-space:nowrap}
.bs-list{display:flex;align-items:center;gap:10px;flex-wrap:wrap;flex:1}
.bs-item{
  display:flex;align-items:center;gap:10px;padding:9px 16px;border-radius:9px;
  border:1px solid var(--line);background:#fff;transition:all .3s var(--ease);
}
.bs-item:hover{border-color:var(--green-800);background:var(--green-50);transform:translateY(-2px)}
.bs-item .dot{width:9px;height:9px;border-radius:50%;background:var(--green-800);flex:none}
.bs-item b{font-size:14.5px;font-weight:700}
.bs-item span{font-size:11.5px;color:var(--muted);letter-spacing:.05em}

/* ---------- 8. 品牌卡 ---------- */
.brand-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.brand-card{
  padding:24px 20px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);transition:transform .35s var(--ease),box-shadow .35s,border-color .3s;
}
.brand-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-800)}
.brand-card .flag{font-size:24px;line-height:1}
.brand-card h3{margin-top:14px;font-size:18px;font-family:var(--font-serif)}
.brand-card .en{margin-top:3px;font-size:11.5px;letter-spacing:.15em;color:var(--green-700);font-weight:600}
.brand-card .yr{margin-top:8px;font-size:12px;color:var(--muted)}
.brand-card p{margin-top:12px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- 8b. 品牌 Banner 展示 ---------- */
.banner-row{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.banner-card{
  position:relative;display:block;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--paper-2);
  transition:transform .35s var(--ease),box-shadow .35s,border-color .3s;
}
.banner-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-800)}
.banner-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.banner-card:hover img{transform:scale(1.04)}
.bc-cap{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;
  background:linear-gradient(0deg,rgba(4,20,9,.88),rgba(4,20,9,.35) 70%,transparent);
}
.bc-cap b{display:block;color:#fff;font-size:17px;font-family:var(--font-serif)}
.bc-cap span{display:block;margin-top:3px;font-size:12.5px;color:rgba(255,255,255,.8)}

/* ---------- 8c. 资料下载 ---------- */
.dl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.dl-card{
  display:flex;gap:18px;align-items:center;padding:24px 22px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);
  transition:transform .35s var(--ease),box-shadow .35s,border-color .3s;
}
.dl-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--green-800)}
.dl-ico{width:52px;height:52px;flex:none;border-radius:12px;display:grid;place-items:center;background:var(--green-50);color:var(--green-800)}
.dl-ico svg{width:24px;height:24px}
.dl-body{flex:1;min-width:0}
.dl-body h3{font-size:17px;font-family:var(--font-serif)}
.dl-body p{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}
.dl-meta{margin-top:9px;display:flex;gap:8px}
.dl-meta span{font-size:11px;padding:3px 9px;border-radius:5px;background:var(--green-50);color:var(--green-800);font-weight:600}
.dl-btn{flex:none;padding:11px 20px;font-size:14px}

/* ---------- 9. 数据条 ---------- */
.stats{background:var(--green-800);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 18px;text-align:center;border-right:1px solid rgba(255,255,255,.15)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(26px,3.6vw,42px);line-height:1;font-weight:700}
.stat span{margin-top:9px;display:block;font-size:13px;color:rgba(255,255,255,.78)}

/* ---------- 10. 产品合集 ---------- */
.prod-filters{margin-bottom:26px}
.prod-filters .prod-tabs{margin-bottom:10px}
.ft-label{align-self:center;font-size:13px;color:var(--muted);flex:none}
.prod-tabs-brand{gap:8px}
.prod-tabs-brand .prod-tab{padding:6px 13px;font-size:13px}
.prod-empty{padding:44px 20px;text-align:center;color:var(--muted);font-size:14px;border:1px dashed var(--line-2);border-radius:var(--radius);background:#fff}
.prod-empty a{color:var(--green-800);font-weight:600;text-decoration:underline}
.prod-tabs{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:26px}
.prod-tab{
  padding:8px 18px;border-radius:7px;font-size:14px;
  border:1px solid var(--line-2);color:var(--muted);background:#fff;transition:all .25s var(--ease);
}
.prod-tab:hover{border-color:var(--green-800);color:var(--green-800)}
.prod-tab.on{background:var(--green-800);border-color:var(--green-800);color:#fff}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.prod-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .35s var(--ease),box-shadow .35s,border-color .3s;
}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-800)}
.prod-card .ph{
  position:relative;aspect-ratio:1/1;background:var(--paper-2);
  display:grid;place-items:center;overflow:hidden;border-bottom:1px solid var(--line);
}
.prod-card .ph img{width:100%;height:100%;object-fit:contain;padding:14px;transition:transform .45s var(--ease)}
.prod-card:hover .ph img{transform:scale(1.05)}
.prod-card .tag{
  position:absolute;top:10px;right:10px;font-size:11px;font-weight:700;letter-spacing:.06em;
  padding:4px 9px;border-radius:5px;background:var(--green-800);color:#fff;z-index:2;
}
.prod-card .tag.rent{background:var(--green-600)}
.prod-body{padding:16px 17px 18px;display:flex;flex-direction:column;flex:1}
.prod-card h3{font-size:16px;font-family:var(--font-serif);line-height:1.45}
.prod-card .model{font-size:12px;color:var(--green-700);margin-top:4px;font-weight:600}
.prod-card .desc{margin-top:9px;font-size:12.5px;color:var(--muted);line-height:1.65;flex:1}
.prod-card .specs{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.prod-card .price{margin-top:11px;font-size:13px;font-weight:700;color:var(--green-800)}
.prod-card .price em{font-style:normal;font-size:11px;font-weight:500;color:var(--muted);margin-left:4px}
.prod-card .specs li{font-size:11.5px;padding:3px 8px;border-radius:5px;background:var(--green-50);color:var(--green-800)}

/* ---------- 11. 人机协同 ---------- */
.syn-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.syn-item{
  padding:26px 22px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);border-top:3px solid var(--green-800);
}
.syn-item.human{border-top-color:var(--green-600)}
.syn-item .tm{font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--green-700)}
.syn-item h4{margin-top:9px;font-size:18px;font-family:var(--font-serif)}
.syn-item p{margin-top:11px;font-size:13px;color:var(--muted);line-height:1.75}

/* ---------- 12. 场景 ---------- */
.scn-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.scn-card{
  padding:20px 18px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);transition:transform .35s var(--ease),box-shadow .35s,border-color .3s;
}
.scn-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--green-800)}
.scn-card .ico{
  width:36px;height:36px;border-radius:9px;display:grid;place-items:center;
  background:var(--green-50);color:var(--green-800);
}
.scn-card .ico svg{width:18px;height:18px}
.scn-card h3{margin-top:12px;font-size:16px;font-family:var(--font-serif)}
.scn-card .tags{margin-top:9px;display:flex;flex-wrap:wrap;gap:5px}
.scn-card .tags li{font-size:11px;padding:2px 8px;border-radius:5px;background:var(--paper-2);color:var(--muted);border:1px solid var(--line)}
.scn-card p{margin-top:10px;font-size:12.5px;color:var(--muted);line-height:1.65}
.scn-card .go{margin-top:12px;font-size:12.5px;font-weight:600;color:var(--green-800);display:inline-flex;gap:5px;align-items:center}
.scn-card .go svg{width:14px;height:14px}
.scn-card:hover .go svg{transform:translateX(4px)}
.scn-card .go svg{transition:transform .3s var(--ease)}

/* ---------- 13. 服务 + 租赁 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.svc-card{padding:26px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);transition:transform .35s var(--ease),box-shadow .35s}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.svc-card .num{font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--green-700)}
.svc-card h3{margin-top:10px;font-size:18px;font-family:var(--font-serif)}
.svc-card p{margin-top:10px;font-size:13px;color:var(--muted);line-height:1.75}

.rent{
  margin-top:24px;padding:clamp(26px,3.6vw,40px);border-radius:var(--radius-lg);
  background:linear-gradient(115deg,var(--green-900),var(--green-700) 62%,var(--green-600));
  color:#fff;position:relative;overflow:hidden;
}
.rent::after{content:"";position:absolute;right:-8%;top:-45%;width:42%;aspect-ratio:1;background:radial-gradient(circle,rgba(124,255,196,.3),transparent 65%)}
.rent-in{position:relative;display:flex;gap:30px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.rent h3{font-size:clamp(22px,2.8vw,30px);font-family:var(--font-serif)}
.rent p{margin-top:11px;font-size:14.5px;color:rgba(255,255,255,.82);max-width:600px}

/* ---------- 14. 行业 ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ind-cl{padding:22px 20px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);transition:border-color .3s,transform .3s var(--ease)}
.ind-cl:hover{border-color:var(--green-800);transform:translateY(-4px)}
.ind-cl h4{font-size:16.5px;font-family:var(--font-serif);display:flex;align-items:center;gap:9px}
.ind-cl h4 i{width:7px;height:7px;border-radius:50%;background:var(--green-800);flex:none}
.ind-cl .list{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.ind-cl .list li{font-size:12px;padding:4px 10px;border-radius:20px;background:var(--green-50);color:var(--green-800)}

/* ---------- 15. CTA + 页脚 ---------- */
.cta-sec{padding:clamp(56px,7vw,88px) 0;text-align:center;background:var(--green-800);color:#fff}
.cta-sec h2{font-family:var(--font-serif);font-size:clamp(26px,3.6vw,42px);line-height:1.25}
.cta-sec p{margin:16px auto 0;max-width:620px;color:rgba(255,255,255,.85);font-size:15.5px}
.cta-btns{margin-top:28px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cta-tel{margin-top:22px;font-size:clamp(19px,2.6vw,26px);font-weight:700;letter-spacing:.03em}
.cta-qr{margin-top:26px;display:inline-flex;align-items:center;gap:16px;background:#fff;border-radius:16px;padding:13px 22px 13px 13px}
.cta-qr img{width:118px;height:118px;display:block}
.cta-qr span{font-size:13.5px;line-height:1.6;color:var(--ink);text-align:left;font-weight:500}
.rent-qr{display:flex;align-items:center;gap:14px;flex:none}
.rent-qr img{width:102px;height:102px;background:#fff;border-radius:12px;padding:7px}
.rent-qr span{font-size:13px;line-height:1.55;color:rgba(255,255,255,.88);text-align:left}

/* ---------- 企业微信二维码弹窗 ---------- */
.qr-modal{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(4,20,9,.62);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s}
.qr-modal.open{opacity:1;visibility:visible}
.qr-card{position:relative;width:min(360px,92vw);background:#fff;border-radius:18px;padding:30px 26px 24px;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.32);transform:translateY(14px) scale(.98);transition:transform .35s var(--ease)}
.qr-modal.open .qr-card{transform:none}
.qr-close{position:absolute;top:10px;right:12px;width:34px;height:34px;border:none;background:transparent;border-radius:8px;font-size:24px;line-height:1;color:var(--muted);cursor:pointer}
.qr-close:hover{background:var(--paper-2);color:var(--ink)}
.qr-card-ico{width:46px;height:46px;margin:0 auto;border-radius:12px;display:grid;place-items:center;background:var(--green-50);color:var(--green-800)}
.qr-card-ico svg{width:24px;height:24px}
.qr-card h3{margin-top:14px;font-size:19px;font-family:var(--font-serif);color:var(--ink)}
.qr-sub{margin-top:7px;font-size:13px;color:var(--muted)}
.qr-img{width:200px;height:200px;margin:18px auto 4px;display:block}
.qr-tip{margin-top:12px;font-size:12px;color:var(--muted);line-height:1.6}

.foot{background:#08120B;color:rgba(255,255,255,.68);padding:52px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
/* 深底页脚：官方标志反白 */
.foot .brand-logo{height:62px;filter:brightness(0) invert(1);opacity:.92}
.foot h5{font-size:12.5px;letter-spacing:.16em;color:#7CFFC4;margin-bottom:14px;font-weight:700}
.foot li{margin-bottom:9px;font-size:13.5px}
.foot li a:hover{color:#7CFFC4}
.foot-about p{margin-top:15px;font-size:13px;line-height:1.8;max-width:330px}
.foot-bot{margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px}
.foot-bot a{color:rgba(255,255,255,.75);text-decoration:none}
.foot-bot a:hover{color:#fff;text-decoration:underline}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1180px){
  .prod-grid{grid-template-columns:repeat(3,1fr)}
  .brand-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:980px){
  .syn-grid{grid-template-columns:repeat(2,1fr)}
  .scn-grid,.ind-grid,.svc-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .container{width:min(1280px,100% - 32px)}
  .dl-grid{grid-template-columns:1fr}
  .nav-menu,.nav-cta .btn{display:none}
  .burger{display:grid}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-bottom:1px solid rgba(255,255,255,.15)}
  .stat:nth-child(2n){border-right:0}
  .floatbar{
    right:auto;left:0;top:auto;bottom:0;translate:0 0;width:100%;
    flex-direction:row;justify-content:space-around;padding:7px 8px;
    background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(12,18,14,.06);
  }
  .floatbar .fb-label{display:none}
  .floatbar a,.floatbar button{width:50px;height:42px;box-shadow:none;border:0}
  .floatbar .to-top{display:none}
  body{padding-bottom:56px}
}
@media (max-width:640px){
  .prod-grid,.brand-grid,.scn-grid,.ind-grid,.svc-grid,.syn-grid,.dl-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
  .hero-badges{gap:18px}
  .banner-row{grid-template-columns:1fr}
}

/* ---------- 17. 锚点偏移（防导航遮挡） ---------- */
[id]{scroll-margin-top:calc(var(--nav-h) + 16px)}

/* ---------- 18. 降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}
.no-js .reveal{opacity:1;transform:none}