/* ==============================================
   宜菱泵业官网 3.0 — Clean Industrial Style
   设计语言：白色主调 · 蓝色工业 · 简洁有力
   ============================================== */

/* ── 变量 ─────────────────────────────────── */
:root {
  --blue:       #1352a2;
  --blue-dark:  #0d3d7a;
  --blue-light: #1a6fd4;
  --orange:     #e05c1a;
  --gray-50:    #f8f9fb;
  --gray-100:   #f0f2f5;
  --gray-200:   #e4e7ec;
  --gray-400:   #9ba3af;
  --gray-600:   #4b5563;
  --gray-800:   #1f2937;
  --white:      #ffffff;
  --text:       #1f2937;
  --text-muted: #6b7280;
  --border:     #e5e7eb;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.13);
  --r:          8px;
  --r-lg:       16px;
  --ease:       cubic-bezier(.4,0,.2,1);
}

/* ── 重置 ─────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Helvetica,Arial,sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--blue);color:#fff}

/* ── 容器 ─────────────────────────────────── */
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* ── 通用标题 ──────────────────────────────── */
.label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;font-weight:700;letter-spacing:3px;text-transform:uppercase;
  color:var(--blue);margin-bottom:12px;
}
.label::before{content:'';width:24px;height:2px;background:var(--blue)}
.h2{font-size:clamp(24px,3vw,40px);font-weight:800;line-height:1.15;letter-spacing:-.5px;color:var(--gray-800)}
.lead{font-size:16px;color:var(--text-muted);line-height:1.75;max-width:560px}
.sec-head{margin-bottom:56px}
.sec-head.center{text-align:center}
.sec-head.center .label{justify-content:center}
.sec-head.center .label::before{display:none}
.sec-head.center .lead{margin:12px auto 0}

/* ── 按钮 ──────────────────────────────────── */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;background:var(--blue);color:#fff;
  font-size:14px;font-weight:700;border-radius:var(--r);
  border:2px solid var(--blue);transition:all .25s var(--ease);
}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(19,82,162,.3)}
.btn-primary svg{width:16px;height:16px;transition:transform .2s}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;background:transparent;color:var(--blue);
  font-size:14px;font-weight:700;border-radius:var(--r);
  border:2px solid var(--blue);transition:all .25s var(--ease);
}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-white{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;background:#fff;color:var(--blue);
  font-size:14px;font-weight:700;border-radius:var(--r);
  border:2px solid #fff;transition:all .25s var(--ease);
}
.btn-white:hover{background:transparent;color:#fff}

/* ── reveal动画 ────────────────────────────── */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.reveal.in-view{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}

/* ══════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════ */
#hdr{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .3s, box-shadow .3s;
}
#hdr.scrolled{border-color:var(--border);box-shadow:var(--shadow-sm)}
.hdr-inner{display:flex;align-items:center;height:68px;gap:0}

/* Logo */
.logo{display:flex;align-items:center;gap:12px;margin-right:auto}
.logo-mark{
  width:40px;height:40px;background:var(--blue);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.logo-mark svg{width:24px;height:24px;fill:#fff}
.logo-name{line-height:1.2}
.logo-name strong{display:block;font-size:17px;font-weight:800;color:var(--gray-800);letter-spacing:.3px}
.logo-name span{font-size:10px;font-weight:500;color:var(--gray-400);letter-spacing:2px}

/* Nav */
.nav{display:flex;align-items:center;gap:2px}
.nav a{
  padding:8px 16px;font-size:14px;font-weight:500;color:var(--gray-600);
  border-radius:var(--r);transition:all .2s;position:relative;
}
.nav a::after{
  content:'';position:absolute;bottom:4px;left:16px;right:16px;height:2px;
  background:var(--blue);border-radius:1px;transform:scaleX(0);transition:transform .2s;
}
.nav a:hover,
.nav a.active{color:var(--blue)}
.nav a:hover::after,
.nav a.active::after{transform:scaleX(1)}

/* CTA */
.hdr-cta{
  margin-left:20px;padding:9px 20px;
  background:var(--blue);color:#fff;
  font-size:13px;font-weight:700;border-radius:var(--r);
  transition:all .2s;border:none;
}
.hdr-cta:hover{background:var(--blue-dark);transform:translateY(-1px)}

/* Mobile */
.hbg{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px;margin-left:auto}
.hbg span{width:22px;height:2px;background:var(--gray-800);border-radius:2px;transition:all .25s}
.hbg.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hbg.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.hbg.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ══════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════ */
#hero{
  padding:120px 0 0;
  background:linear-gradient(160deg, #f0f5ff 0%, #ffffff 60%);
  position:relative;overflow:hidden;
}
/* decorative shapes */
#hero::before{
  content:'';position:absolute;
  top:-120px;right:-80px;
  width:600px;height:600px;
  background:radial-gradient(circle, rgba(19,82,162,.07) 0%, transparent 70%);
  pointer-events:none;
}
.hero-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;padding-bottom:80px;
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(19,82,162,.08);color:var(--blue);
  font-size:12px;font-weight:700;letter-spacing:2px;
  padding:6px 16px;border-radius:30px;margin-bottom:24px;
  border:1px solid rgba(19,82,162,.15);
}
.hero-h1{
  font-size:clamp(32px,4.5vw,60px);font-weight:900;
  line-height:1.1;letter-spacing:-1.5px;color:var(--gray-800);
  margin-bottom:22px;
}
.hero-h1 em{font-style:normal;color:var(--blue)}
.hero-p{font-size:16px;color:var(--text-muted);line-height:1.8;margin-bottom:36px;max-width:480px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--border);
  border-radius:30px;padding:6px 14px;
  font-size:12px;font-weight:600;color:var(--gray-600);
  box-shadow:var(--shadow-sm);
}
.badge svg{width:14px;height:14px;stroke:var(--blue);fill:none;stroke-width:2;flex-shrink:0}

/* Hero visual */
.hero-visual{position:relative}
.hero-card{
  background:#fff;border-radius:var(--r-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
.hero-img-area{
  height:300px;
  background:linear-gradient(135deg, #0d3d7a 0%, #1352a2 50%, #1a6fd4 100%);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.hero-img-area::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
}
.hero-pump-icon{position:relative;z-index:1;opacity:.7}
.hero-pump-icon svg{width:140px;height:140px;stroke:#fff;fill:none;stroke-width:1}
.hero-card-body{padding:20px 24px}
.hero-card-title{font-size:16px;font-weight:700;color:var(--gray-800);margin-bottom:6px}
.hero-card-desc{font-size:13px;color:var(--text-muted);line-height:1.6}
/* floating stats */
.hero-float{
  position:absolute;top:24px;right:-16px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r);
  padding:14px 18px;box-shadow:var(--shadow-md);
  display:flex;align-items:center;gap:12px;min-width:160px;
}
.hero-float-num{font-size:28px;font-weight:900;color:var(--blue);line-height:1}
.hero-float-label{font-size:11px;color:var(--text-muted);font-weight:500}
.hero-float2{top:auto;bottom:80px;right:-20px}

/* Stats bar */
.stats-bar{
  border-top:1px solid var(--border);
  background:#fff;
}
.stats-inner{display:flex}
.stat-item{
  flex:1;padding:28px 20px;text-align:center;
  border-right:1px solid var(--border);
}
.stat-item:last-child{border-right:none}
.stat-num{
  font-size:clamp(24px,3vw,38px);font-weight:900;
  color:var(--blue);line-height:1;margin-bottom:6px;
  display:block;
}
.stat-lbl{font-size:12px;color:var(--text-muted);font-weight:500}

/* ══════════════════════════════════════════════
   ADVANTAGES
═══════════════════════════════════════════════ */
#advantages{padding:96px 0;background:var(--gray-50)}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:36px 28px;transition:all .3s var(--ease);
  position:relative;overflow:hidden;
}
.adv-card::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--blue),var(--blue-light));
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.adv-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.adv-card:hover::after{transform:scaleX(1)}
.adv-icon{
  width:56px;height:56px;background:rgba(19,82,162,.09);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.adv-icon svg{width:26px;height:26px;stroke:var(--blue);fill:none;stroke-width:1.8}
.adv-num{font-size:32px;font-weight:900;color:var(--blue);line-height:1;margin-bottom:6px}
.adv-title{font-size:15px;font-weight:700;color:var(--gray-800);margin-bottom:8px}
.adv-desc{font-size:13px;color:var(--text-muted);line-height:1.65}

/* ══════════════════════════════════════════════
   PRODUCTS
═══════════════════════════════════════════════ */
#products{padding:96px 0;background:#fff}
.prod-cats{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:40px}
.cat-btn{
  padding:8px 18px;border:1.5px solid var(--border);border-radius:30px;
  background:#fff;color:var(--gray-600);font-size:13px;font-weight:600;
  cursor:pointer;transition:all .2s;
}
.cat-btn:hover,.cat-btn.active{background:var(--blue);border-color:var(--blue);color:#fff}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod-card{
  border:1px solid var(--border);border-radius:var(--r-lg);
  background:#fff;overflow:hidden;
  transition:all .3s var(--ease);display:flex;flex-direction:column;
}
.prod-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--blue)}
.prod-img{
  height:200px;
  background:linear-gradient(135deg,#eef3fb 0%,#dce9f8 100%);
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.prod-img-bg{position:absolute;inset:0;opacity:1}
.prod-img-icon{position:relative;z-index:1;width:80px;height:80px;display:flex;align-items:center;justify-content:center}
.prod-img-icon svg{width:80px;height:80px;stroke:var(--blue);fill:none;stroke-width:1;opacity:.5}
.prod-tag-label{
  position:absolute;top:12px;left:12px;
  background:var(--blue);color:#fff;
  font-size:10px;font-weight:800;letter-spacing:1px;
  padding:4px 10px;border-radius:20px;
}
.prod-body{padding:20px;flex:1;display:flex;flex-direction:column}
.prod-cat-tag{font-size:11px;font-weight:700;color:var(--blue);letter-spacing:1px;text-transform:uppercase;margin-bottom:6px}
.prod-name{font-size:16px;font-weight:700;color:var(--gray-800);margin-bottom:8px;line-height:1.3}
.prod-desc{font-size:13px;color:var(--text-muted);line-height:1.65;flex:1;margin-bottom:16px}
.prod-specs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.spec-tag{
  font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;
  background:var(--gray-100);color:var(--gray-600);
}
.prod-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:700;color:var(--blue);
  transition:gap .2s;margin-top:auto;
}
.prod-link:hover{gap:10px}
.prod-link svg{width:14px;height:14px}
.prod-more{text-align:center;margin-top:48px}

/* ══════════════════════════════════════════════
   ABOUT STRIP
═══════════════════════════════════════════════ */
#about{padding:96px 0;background:var(--gray-50)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.about-img-box{position:relative}
.about-main{
  border-radius:var(--r-lg);overflow:hidden;
  height:420px;background:linear-gradient(145deg,#0d3d7a,#1352a2);
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.about-main-overlay{
  position:absolute;inset:0;
  background:url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?w=800&q=70') center/cover;
  opacity:.15;
}
.about-main-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:28px 28px;
}
.about-float{
  position:absolute;bottom:-20px;right:-16px;
  background:var(--orange);color:#fff;
  border-radius:var(--r-lg);padding:18px 22px;
  box-shadow:0 8px 24px rgba(224,92,26,.4);text-align:center;
}
.about-float strong{display:block;font-size:32px;font-weight:900;line-height:1}
.about-float span{font-size:11px;opacity:.9;margin-top:2px;display:block;font-weight:600}
.about-text{font-size:15px;color:var(--text-muted);line-height:1.85;margin-bottom:28px}
.feat-list{display:flex;flex-direction:column;gap:2px;margin-bottom:32px}
.feat-item{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r);
  transition:background .2s;border:1px solid transparent;
}
.feat-item:hover{background:#fff;border-color:var(--border);box-shadow:var(--shadow-sm)}
.feat-icon{
  width:36px;height:36px;min-width:36px;background:rgba(19,82,162,.09);
  border-radius:8px;display:flex;align-items:center;justify-content:center;
}
.feat-icon svg{width:18px;height:18px;stroke:var(--blue);fill:none;stroke-width:2}
.feat-text strong{display:block;font-size:14px;font-weight:700;color:var(--gray-800);margin-bottom:2px}
.feat-text span{font-size:12.5px;color:var(--text-muted)}

/* ══════════════════════════════════════════════
   APPLICATIONS
═══════════════════════════════════════════════ */
#apps{padding:96px 0;background:var(--blue)}
#apps .h2{color:#fff}
#apps .lead{color:rgba(255,255,255,.65)}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.app-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-lg);padding:32px 26px;
  transition:all .3s var(--ease);
}
.app-card:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);transform:translateY(-4px)}
.app-icon{
  width:48px;height:48px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--r);display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.app-icon svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.8}
.app-name{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.app-desc{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7}

/* ══════════════════════════════════════════════
   CTA BAND
═══════════════════════════════════════════════ */
#cta{padding:88px 0;background:#fff;border-top:1px solid var(--border)}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:40px;flex-wrap:wrap;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-dark) 100%);
  border-radius:var(--r-lg);padding:56px 64px;
  box-shadow:0 20px 60px rgba(19,82,162,.25);
}
.cta-left h2{font-size:clamp(22px,3vw,34px);font-weight:800;color:#fff;margin-bottom:8px;letter-spacing:-.3px}
.cta-left p{font-size:15px;color:rgba(255,255,255,.7)}
.cta-btns{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ══════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════ */
#footer{background:#0f1c2e;color:rgba(255,255,255,.6)}
.footer-top{padding:64px 0 48px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px}
.footer-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-logo .logo-mark{background:rgba(255,255,255,.1)}
.footer-logo .logo-name strong{color:#fff}
.footer-logo .logo-name span{color:rgba(255,255,255,.3)}
.footer-about{font-size:13px;line-height:1.85;opacity:.6;max-width:260px;margin-bottom:20px}
.footer-cert{display:flex;gap:8px;flex-wrap:wrap}
.cert-badge{
  font-size:10px;font-weight:700;padding:4px 10px;
  border:1px solid rgba(255,255,255,.15);border-radius:20px;
  color:rgba(255,255,255,.5);letter-spacing:.5px;
}
.footer-col h4,.footer-col{font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,.35);margin-bottom:20px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:rgba(255,255,255,.5);transition:color .2s}
.footer-links a:hover{color:rgba(255,255,255,.9)}
.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-row{display:flex;gap:12px;align-items:flex-start}
.contact-icon{
  width:30px;height:30px;min-width:30px;
  background:rgba(255,255,255,.07);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  margin-top:1px;
}
.contact-icon svg{width:13px;height:13px;stroke:rgba(255,255,255,.5);fill:none;stroke-width:2}
.contact-row p{font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.6}
.contact-row strong{display:block;font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:rgba(255,255,255,.25);margin-bottom:2px}
.footer-divider{height:1px;background:rgba(255,255,255,.07)}
.footer-bottom{padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px;opacity:.4}

/* ══════════════════════════════════════════════
   INNER PAGES — PAGE HERO
═══════════════════════════════════════════════ */
.page-hero{
  padding:120px 0 60px;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-dark) 100%);
  color:#fff;position:relative;overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1.5px,transparent 1.5px);
  background-size:36px 36px;
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{font-size:clamp(28px,4vw,52px);font-weight:900;letter-spacing:-1px;margin-bottom:10px}
.page-hero p{font-size:16px;opacity:.7}
.breadcrumb{display:flex;gap:8px;align-items:center;margin-top:16px;font-size:12.5px;opacity:.55}
.breadcrumb a:hover{opacity:1;color:rgba(255,255,255,.9)}
.breadcrumb span{opacity:.4}

/* ══════════════════════════════════════════════
   PRODUCTS PAGE
═══════════════════════════════════════════════ */
.products-sec{padding:72px 0 100px;background:var(--gray-50)}
.all-prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* ══════════════════════════════════════════════
   ABOUT PAGE
═══════════════════════════════════════════════ */
.about-sec{padding:72px 0 100px;background:#fff}
.about-page-wrap{max-width:920px;margin:0 auto}
.about-intro{
  font-size:17px;color:var(--text-muted);line-height:1.9;
  border-left:3px solid var(--blue);padding-left:24px;margin-bottom:48px;
}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:48px 0}
.stat-box{
  background:var(--gray-50);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:28px 20px;text-align:center;transition:all .3s;
}
.stat-box:hover{background:var(--blue);border-color:var(--blue);box-shadow:var(--shadow-md)}
.stat-box:hover .sb-num,.stat-box:hover .sb-label{color:#fff}
.stat-box:hover .sb-num{-webkit-text-fill-color:#fff}
.sb-num{font-size:36px;font-weight:900;color:var(--blue);line-height:1;margin-bottom:6px;display:block}
.sb-label{font-size:12px;color:var(--text-muted);font-weight:500}
.timeline{position:relative;padding-left:36px;margin:48px 0}
.timeline::before{content:'';position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--blue),rgba(19,82,162,.1))}
.tl-item{position:relative;padding-bottom:32px}
.tl-item::before{
  content:'';position:absolute;left:-42px;top:4px;
  width:12px;height:12px;background:var(--blue);border-radius:50%;
  border:2px solid #fff;box-shadow:0 0 0 3px rgba(19,82,162,.2);
}
.tl-year{display:inline-block;font-size:11px;font-weight:800;letter-spacing:1.5px;color:var(--blue);background:rgba(19,82,162,.08);padding:3px 12px;border-radius:20px;margin-bottom:8px}
.tl-text{font-size:15px;color:var(--text-muted);line-height:1.75}
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.cert-card{
  background:var(--gray-50);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px 20px;text-align:center;transition:all .3s;
}
.cert-card:hover{border-color:var(--blue);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cert-card svg{width:36px;height:36px;stroke:var(--blue);fill:none;stroke-width:1.5;margin:0 auto 12px}
.cert-card p{font-size:13px;font-weight:600;color:var(--gray-600);line-height:1.5}

/* ══════════════════════════════════════════════
   CONTACT PAGE
═══════════════════════════════════════════════ */
.contact-sec{padding:72px 0 100px;background:var(--gray-50)}
.contact-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:56px;align-items:start}
.contact-info h3{font-size:24px;font-weight:800;color:var(--gray-800);margin-bottom:10px}
.contact-info .sub{font-size:14px;color:var(--text-muted);margin-bottom:36px;line-height:1.7}
.ci-item{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px}
.ci-icon{
  width:44px;height:44px;min-width:44px;
  background:rgba(19,82,162,.09);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;
}
.ci-icon svg{width:20px;height:20px;stroke:var(--blue);fill:none;stroke-width:2}
.ci-text strong{display:block;font-size:12px;font-weight:700;letter-spacing:1px;color:var(--text-muted);text-transform:uppercase;margin-bottom:3px}
.ci-text p{font-size:14px;color:var(--gray-800);line-height:1.6}
.ci-text a{color:var(--blue);font-weight:600}
.tip-box{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:20px 24px;margin-top:8px}
.tip-box h4{font-size:12.5px;font-weight:700;color:var(--blue);margin-bottom:12px}
.tip-box ul{display:flex;flex-direction:column;gap:7px}
.tip-box li{display:flex;gap:8px;font-size:12.5px;color:var(--text-muted);line-height:1.5}
.tip-box li::before{content:'·';color:var(--blue);font-weight:900;flex-shrink:0}

/* Form */
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:40px;box-shadow:var(--shadow-sm)}
.form-card h3{font-size:20px;font-weight:800;color:var(--gray-800);margin-bottom:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fg{margin-bottom:18px}
.fg label{display:block;font-size:11.5px;font-weight:700;letter-spacing:.5px;color:var(--text-muted);margin-bottom:7px}
.fg input,.fg select,.fg textarea{
  width:100%;padding:11px 14px;
  border:1.5px solid var(--border);border-radius:var(--r);
  font-size:14px;font-family:inherit;color:var(--gray-800);
  background:var(--gray-50);outline:none;
  transition:all .2s;appearance:none;
}
.fg input::placeholder,.fg textarea::placeholder{color:var(--gray-400)}
.fg input:focus,.fg select:focus,.fg textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(19,82,162,.08)}
.fg textarea{min-height:120px;resize:vertical}
.fg select{cursor:pointer;color:var(--gray-600)}
.fg select option{background:#fff;color:var(--gray-800)}
.submit-btn{
  width:100%;padding:14px;background:var(--blue);color:#fff;
  font-size:15px;font-weight:700;border:none;border-radius:var(--r);
  cursor:pointer;transition:all .25s;
}
.submit-btn:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(19,82,162,.3)}
.submit-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.form-ok{
  display:none;padding:16px;text-align:center;
  background:#f0fdf4;border:1px solid #86efac;border-radius:var(--r);
  color:#166534;font-size:14px;font-weight:600;margin-top:14px;
}
.map-area{
  margin-top:56px;height:260px;background:var(--gray-100);
  border:1px solid var(--border);border-radius:var(--r-lg);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);font-size:13px;text-align:center;
}
.map-area svg{width:36px;height:36px;stroke:var(--blue);fill:none;stroke-width:1.2;margin:0 auto 10px;opacity:.5}

/* ══════════════════════════════════════════════
   PRODUCT DETAIL
═══════════════════════════════════════════════ */
.detail-sec{padding:72px 0 100px;background:#fff}
.detail-layout{display:grid;grid-template-columns:1fr 1.3fr;gap:64px;align-items:start}
.detail-img-box{
  background:var(--gray-50);border:1px solid var(--border);border-radius:var(--r-lg);
  height:380px;display:flex;align-items:center;justify-content:center;
}
.detail-img-box svg{width:120px;height:120px;stroke:var(--blue);fill:none;stroke-width:.8;opacity:.4}
.detail-cat{font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--blue);margin-bottom:10px}
.detail-name{font-size:clamp(22px,3vw,34px);font-weight:900;color:var(--gray-800);margin-bottom:14px;letter-spacing:-.3px}
.detail-sub{font-size:15px;color:var(--text-muted);line-height:1.8;margin-bottom:24px}
.detail-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.chip{
  font-size:12px;font-weight:600;padding:5px 14px;
  border-radius:20px;background:rgba(19,82,162,.08);
  border:1px solid rgba(19,82,162,.15);color:var(--blue);
}
.spec-tbl{width:100%;border-collapse:collapse;margin-bottom:28px}
.spec-tbl tr{border-bottom:1px solid var(--border)}
.spec-tbl tr:last-child{border-bottom:none}
.spec-tbl th,.spec-tbl td{padding:12px 14px;font-size:13.5px;text-align:left}
.spec-tbl th{background:var(--gray-50);color:var(--text-muted);font-weight:600;width:42%}
.spec-tbl td{color:var(--gray-800)}
.spec-tbl tr:hover td,.spec-tbl tr:hover th{background:rgba(19,82,162,.03)}
.detail-feats{margin-bottom:32px}
.detail-feats h3{font-size:14px;font-weight:700;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase;margin-bottom:14px}
.feat-li{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;font-size:14px;color:var(--gray-600);line-height:1.6}
.feat-li::before{content:'✓';color:var(--blue);font-weight:900;flex-shrink:0;margin-top:1px}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-float,.hero-float2{display:none}
  .adv-grid{grid-template-columns:1fr 1fr}
  .prod-grid,.all-prod-grid{grid-template-columns:1fr 1fr}
  .app-grid{grid-template-columns:1fr 1fr}
  .about-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats-row{grid-template-columns:1fr 1fr}
  .cert-grid{grid-template-columns:1fr 1fr}
  .contact-layout{grid-template-columns:1fr}
  .detail-layout{grid-template-columns:1fr}
  .cta-inner{padding:40px 32px}
  .stats-inner{flex-wrap:wrap}
  .stat-item{flex:1;min-width:140px}
}
@media(max-width:768px){
  .nav,.hdr-cta{display:none}
  .hbg{display:flex}
  .nav.open{
    display:flex;flex-direction:column;gap:4px;
    position:fixed;top:68px;left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(12px);
    padding:16px;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);
  }
  .nav.open a{padding:12px 16px;border-radius:var(--r);font-size:15px}
  .adv-grid{grid-template-columns:1fr 1fr;gap:14px}
  .prod-grid,.all-prod-grid{grid-template-columns:1fr}
  .app-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:24px 20px}
  .stats-row{grid-template-columns:1fr 1fr}
  .cert-grid{grid-template-columns:1fr}
  .cta-inner{padding:32px 24px;flex-direction:column}
  .hero-actions{flex-direction:column}
}
@media(max-width:480px){
  .adv-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr}
  .stat-item{min-width:50%}
}

/* ══════════════════════════════════════════════
   实际 HTML 使用的类名补充（与 HTML 对应）
═══════════════════════════════════════════════ */

/* ── 导航栏（HTML使用的类名）─────────────────── */
#header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(13,20,38,.0);
  backdrop-filter:blur(0px);
  border-bottom:1px solid transparent;
  transition:background .4s,backdrop-filter .4s,border-color .3s,box-shadow .3s;
}
#header.scrolled,#header.at-top.scrolled{
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(16px);
  border-color:var(--border);
  box-shadow:var(--shadow-sm);
}
/* 内页 header 默认白色 */
#header:not(.at-top){
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(16px);
  border-color:var(--border);
  box-shadow:var(--shadow-sm);
}
#header .container{height:68px;display:flex;align-items:center}
#header nav{display:flex;align-items:center;width:100%;gap:0}

.nav-logo{display:flex;align-items:center;gap:12px;margin-right:auto;text-decoration:none}
.nav-logo .logo-mark{
  width:40px;height:40px;background:var(--blue);border-radius:var(--r);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.nav-logo .logo-mark svg{width:22px;height:22px;fill:#fff}
.nav-logo .logo-info{line-height:1.25}
.nav-logo .logo-info strong{display:block;font-size:16px;font-weight:800;color:var(--gray-800);letter-spacing:.2px}
.nav-logo .logo-info em{font-style:normal;font-size:10px;font-weight:500;color:var(--gray-400);letter-spacing:1.5px}
/* 首页透明导航时 logo 白色 */
#header.at-top .nav-logo .logo-info strong{color:#fff}
#header.at-top .nav-logo .logo-info em{color:rgba(255,255,255,.45)}

.nav-menu{display:flex;align-items:center;gap:2px}
.nav-menu a{
  padding:8px 15px;font-size:14px;font-weight:500;color:var(--gray-600);
  border-radius:var(--r);transition:all .2s;position:relative;text-decoration:none;
}
.nav-menu a::after{
  content:'';position:absolute;bottom:3px;left:15px;right:15px;height:2px;
  background:var(--blue);border-radius:1px;transform:scaleX(0);transition:transform .2s;
}
.nav-menu a:hover,.nav-menu a.active{color:var(--blue)}
.nav-menu a:hover::after,.nav-menu a.active::after{transform:scaleX(1)}
#header.at-top .nav-menu a{color:rgba(255,255,255,.75)}
#header.at-top .nav-menu a:hover,#header.at-top .nav-menu a.active{color:#fff}
#header.at-top .nav-menu a::after{background:#fff}

.nav-btn{
  margin-left:16px;padding:9px 20px;
  background:var(--blue);color:#fff;
  font-size:13px;font-weight:700;border-radius:var(--r);
  transition:all .2s;text-decoration:none;white-space:nowrap;
}
.nav-btn:hover{background:var(--blue-dark);transform:translateY(-1px)}
#header.at-top .nav-btn{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3)}
#header.at-top .nav-btn:hover{background:rgba(255,255,255,.28)}

.hamburger{
  display:none;flex-direction:column;gap:5px;cursor:pointer;
  padding:6px;margin-left:12px;
}
.hamburger span{
  width:22px;height:2px;background:var(--gray-800);border-radius:2px;
  transition:all .25s;display:block;
}
#header.at-top .hamburger span{background:#fff}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── 首页英雄区 ──────────────────────────────── */
#hero{
  min-height:100vh;display:flex;flex-direction:column;justify-content:flex-end;
  position:relative;overflow:hidden;
}
.hero-canvas{position:absolute;inset:0}
.hero-photo{
  position:absolute;inset:0;
  background:linear-gradient(135deg,#061224 0%,#0a1e3c 40%,#0d2e58 70%,#0a1e3c 100%);
}
.hero-gradient{
  position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(0,0,0,0) 40%,rgba(6,18,36,.7) 100%);
}
.hero-dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1.5px,transparent 1.5px);
  background-size:40px 40px;
}
.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}
.hero-orb-1{
  width:600px;height:600px;top:-120px;right:-80px;
  background:radial-gradient(circle,rgba(26,111,212,.28),transparent 70%);
  animation:orbFloat 14s ease-in-out infinite;
}
.hero-orb-2{
  width:400px;height:400px;bottom:80px;left:-60px;
  background:radial-gradient(circle,rgba(224,92,26,.18),transparent 70%);
  animation:orbFloat 18s ease-in-out infinite reverse;
}
.hero-line{
  position:absolute;top:0;right:28%;width:1px;height:100%;
  background:linear-gradient(to bottom,transparent,rgba(255,255,255,.06),transparent);
}
@keyframes orbFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-40px)}}

.hero-inner{
  position:relative;z-index:1;
  padding:0 24px;padding-top:160px;padding-bottom:0;
  display:flex;flex-direction:column;align-items:flex-start;
  min-height:100vh;justify-content:center;
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:30px;padding:7px 18px;margin-bottom:28px;
}
.hero-kicker-dot{
  width:8px;height:8px;background:var(--orange,#e05c1a);
  border-radius:50%;flex-shrink:0;
  box-shadow:0 0 0 3px rgba(224,92,26,.25);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(224,92,26,.25)}50%{box-shadow:0 0 0 7px rgba(224,92,26,.08)}}
.hero-kicker-text{font-size:12px;font-weight:600;color:rgba(255,255,255,.65);letter-spacing:.5px}

.hero-h1{
  font-size:clamp(38px,6vw,76px);font-weight:900;
  line-height:1.08;letter-spacing:-2px;color:#fff;
  margin-bottom:24px;
}
.hero-h1 .line2{
  display:block;
  background:linear-gradient(90deg,#1a6fd4,#5ba3f5,#a8d4ff);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.hero-body{
  font-size:16px;color:rgba(255,255,255,.6);
  line-height:1.85;max-width:520px;margin-bottom:40px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:64px}
.btn-hero-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:15px 32px;background:var(--blue,#1352a2);color:#fff;
  font-size:15px;font-weight:700;border-radius:var(--r);
  transition:all .25s;text-decoration:none;
  box-shadow:0 4px 20px rgba(19,82,162,.4);
}
.btn-hero-primary svg{width:16px;height:16px;flex-shrink:0;transition:transform .2s}
.btn-hero-primary:hover{background:#0d3d7a;transform:translateY(-2px);box-shadow:0 8px 32px rgba(19,82,162,.5)}
.btn-hero-primary:hover svg{transform:translateX(4px)}
.btn-hero-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:15px 28px;background:transparent;color:rgba(255,255,255,.75);
  font-size:15px;font-weight:600;border-radius:var(--r);
  border:1.5px solid rgba(255,255,255,.2);transition:all .25s;text-decoration:none;
}
.btn-hero-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.35);color:#fff}

.scroll-hint{
  position:absolute;bottom:140px;left:50%;transform:translateX(-50%);
  font-size:10px;font-weight:700;letter-spacing:4px;
  color:rgba(255,255,255,.25);writing-mode:vertical-rl;
}
.hero-stats-bar{
  position:relative;z-index:1;
  background:rgba(0,0,0,.35);backdrop-filter:blur(20px);
  border-top:1px solid rgba(255,255,255,.08);
  width:100%;
}
.hero-stats-inner{display:flex}
.hero-stat-item{
  flex:1;padding:22px 16px;text-align:center;
  border-right:1px solid rgba(255,255,255,.07);
}
.hero-stat-item:last-child{border-right:none}
.hero-stat-num{
  font-size:clamp(20px,2.5vw,32px);font-weight:900;
  color:#fff;line-height:1;margin-bottom:5px;display:block;
}
.hero-stat-label{font-size:11px;color:rgba(255,255,255,.4);font-weight:500}

/* ── 通用区块 ──────────────────────────────────── */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11px;font-weight:700;letter-spacing:3px;
  text-transform:uppercase;color:var(--blue,#1352a2);
  margin-bottom:12px;
}
.eyebrow::before{content:'';width:20px;height:2px;background:var(--blue,#1352a2)}
.section-title{
  font-size:clamp(24px,3vw,40px);font-weight:900;
  line-height:1.15;letter-spacing:-.5px;color:var(--white,#fff);margin-bottom:0;
}
.section-lead{font-size:15px;color:rgba(255,255,255,.55);line-height:1.75;max-width:560px}
.section-header{margin-bottom:52px}
.section-header.centered{text-align:center}
.section-header.centered .eyebrow{justify-content:center}
.section-header.centered .eyebrow::before{display:none}
.section-header.centered .section-lead{margin:12px auto 0}

/* Features区块 */
#features{padding:96px 0;background:var(--navy-deep,#07101f)}
.features-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
}
.feature-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-lg,16px);padding:36px 28px;
  transition:all .3s;position:relative;overflow:hidden;
}
.feature-card::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--blue,#1352a2),#5ba3f5);
  transform:scaleX(0);transform-origin:left;transition:transform .3s;
}
.feature-card:hover{
  background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.14);
  transform:translateY(-6px);
}
.feature-card:hover::after{transform:scaleX(1)}
.feature-icon-wrap{
  width:52px;height:52px;background:rgba(19,82,162,.2);
  border-radius:var(--r,8px);display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;
}
.feature-icon-wrap svg{width:24px;height:24px;stroke:rgba(100,180,255,.8);fill:none;stroke-width:1.8}
.feature-num{font-size:36px;font-weight:900;color:var(--blue,#1352a2);line-height:1;margin-bottom:5px}
.feature-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:8px}
.feature-desc{font-size:13px;color:rgba(255,255,255,.45);line-height:1.7}

/* Products区块 */
#products{padding:96px 0;background:#0d1a2e}
.prod-grid-2{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod-card-2{
  border:1px solid rgba(255,255,255,.08);border-radius:var(--r-lg,16px);
  background:rgba(255,255,255,.03);overflow:hidden;
  transition:all .3s;display:flex;flex-direction:column;
}
.prod-card-2:hover{
  transform:translateY(-5px);
  box-shadow:0 16px 48px rgba(0,0,0,.5);
  border-color:rgba(19,82,162,.5);
}
.prod-visual{
  height:200px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.prod-visual-bg{position:absolute;inset:0}
.prod-visual-icon{
  position:relative;z-index:1;
  width:90px;height:90px;display:flex;align-items:center;justify-content:center;
}
.prod-visual-icon svg{
  width:90px;height:90px;stroke:rgba(255,255,255,.35);
  fill:none;stroke-width:1.2;
}
.prod-badge-2{
  position:absolute;top:12px;left:12px;z-index:2;
  background:var(--blue,#1352a2);color:#fff;
  font-size:10px;font-weight:800;letter-spacing:1px;
  padding:4px 10px;border-radius:20px;
}
.prod-body-2{padding:20px;flex:1;display:flex;flex-direction:column}
.prod-cat{
  font-size:11px;font-weight:700;color:rgba(100,160,255,.7);
  letter-spacing:1.5px;text-transform:uppercase;margin-bottom:6px;
}
.prod-name-2{font-size:17px;font-weight:800;color:#fff;margin-bottom:10px;line-height:1.3}
.prod-blurb{font-size:13px;color:rgba(255,255,255,.45);line-height:1.7;flex:1;margin-bottom:14px}
.prod-specs-mini{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.spec-pill{
  font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.5);
}
.prod-link-2{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:700;color:rgba(100,160,255,.8);
  transition:all .2s;margin-top:auto;text-decoration:none;
}
.prod-link-2:hover{color:#fff;gap:10px}
.prod-link-2 svg{width:14px;height:14px;transition:transform .2s}
.prod-link-2:hover svg{transform:translateX(3px)}
.products-cta{text-align:center;margin-top:48px}

/* About区块 */
#about-preview{padding:96px 0;background:#07101f}
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.about-visual{position:relative}
.about-main-img{
  border-radius:var(--r-lg,16px);overflow:hidden;
  height:440px;
  background:linear-gradient(145deg,#0d3d7a,#1352a2);
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.about-img-inner{
  position:absolute;inset:0;
  background:url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?w=800&q=70') center/cover;
  opacity:.1;
}
.about-img-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:28px 28px;
}
.about-img-content{position:absolute;bottom:24px;left:24px;right:24px}
.about-img-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.img-stat{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r,8px);padding:12px 8px;text-align:center;
}
.img-stat-num{font-size:18px;font-weight:900;color:#fff;line-height:1;margin-bottom:3px}
.img-stat-label{font-size:10px;color:rgba(255,255,255,.4);font-weight:500}
.about-badge{
  position:absolute;top:24px;right:-16px;
  background:var(--orange,#e05c1a);color:#fff;
  border-radius:var(--r-lg,16px);padding:18px 20px;text-align:center;
  box-shadow:0 8px 24px rgba(224,92,26,.4);
}
.about-badge strong{display:block;font-size:30px;font-weight:900;line-height:1}
.about-badge span{font-size:11px;opacity:.9;font-weight:600}
.about-text{
  font-size:15px;color:rgba(255,255,255,.55);line-height:1.9;margin-bottom:28px;
}
.about-features-list{display:flex;flex-direction:column;gap:4px;margin-bottom:32px}
.about-feat{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r,8px);
  transition:background .2s;border:1px solid transparent;
}
.about-feat:hover{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.07)}
.about-feat-icon{
  width:36px;height:36px;min-width:36px;
  background:rgba(19,82,162,.2);border-radius:8px;
  display:flex;align-items:center;justify-content:center;
}
.about-feat-icon svg{width:16px;height:16px;stroke:rgba(100,180,255,.8);fill:none;stroke-width:2}
.about-feat-text strong{display:block;font-size:14px;font-weight:700;color:#fff;margin-bottom:2px}
.about-feat-text span{font-size:12.5px;color:rgba(255,255,255,.4)}

/* Applications区块 */
#applications{
  padding:96px 0;
  background:linear-gradient(to bottom,#0d1a2e,#07101f);
  position:relative;overflow:hidden;
}
.app-bg-glow{
  position:absolute;top:-100px;right:-100px;
  width:500px;height:500px;
  background:radial-gradient(circle,rgba(19,82,162,.15),transparent 70%);
  pointer-events:none;
}
.app-grid-2{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:0}
.app-card-2{
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);
  border-radius:var(--r-lg,16px);padding:30px 24px;
  transition:all .3s;position:relative;overflow:hidden;
}
.app-card-2:hover{
  background:rgba(255,255,255,.06);border-color:rgba(19,82,162,.4);
  transform:translateY(-4px);
}
.app-num{
  font-size:40px;font-weight:900;
  color:rgba(255,255,255,.04);position:absolute;top:20px;right:20px;
  line-height:1;
}
.app-icon-2{
  width:46px;height:46px;
  background:rgba(19,82,162,.2);border:1px solid rgba(19,82,162,.25);
  border-radius:var(--r,8px);display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.app-icon-2 svg{width:20px;height:20px;stroke:rgba(100,180,255,.8);fill:none;stroke-width:1.8}
.app-title-2{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.app-desc-2{font-size:13px;color:rgba(255,255,255,.45);line-height:1.7;margin-bottom:14px}
.app-tags{display:flex;flex-wrap:wrap;gap:6px}
.app-tag{
  font-size:11px;font-weight:600;padding:3px 10px;border-radius:20px;
  background:rgba(19,82,162,.15);border:1px solid rgba(19,82,162,.2);
  color:rgba(100,160,255,.7);
}

/* Tech区块 */
#tech-strip{padding:96px 0;background:#061224}
.tech-layout{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.tech-visual{display:flex;align-items:center;justify-content:center}
.tech-visual-inner{position:relative;width:320px;height:320px}
.tech-rings{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center}
.tech-ring{
  position:absolute;border-radius:50%;border:1px solid rgba(19,82,162,.2);
}
.tech-ring-1{width:100%;height:100%;animation:ringRotate 20s linear infinite}
.tech-ring-2{width:70%;height:70%;animation:ringRotate 14s linear infinite reverse;border-color:rgba(19,82,162,.3)}
.tech-ring-3{width:40%;height:40%;animation:ringRotate 8s linear infinite;border-color:rgba(19,82,162,.4)}
@keyframes ringRotate{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.tech-ring-center{
  width:90px;height:90px;background:rgba(19,82,162,.15);
  border:2px solid rgba(19,82,162,.4);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.tech-ring-center svg{width:36px;height:36px;fill:rgba(100,180,255,.6)}
.tech-label{
  position:absolute;bottom:-30px;left:50%;transform:translateX(-50%);
  font-size:11px;font-weight:600;color:rgba(255,255,255,.3);
  letter-spacing:1px;white-space:nowrap;
}
.tech-steps{display:flex;flex-direction:column;gap:16px}
.tech-step{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px;border-radius:var(--r,8px);
  background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.06);
  transition:all .3s;
}
.tech-step:hover{background:rgba(255,255,255,.06);border-color:rgba(19,82,162,.3)}
.tech-step-num{
  font-size:13px;font-weight:800;color:var(--blue,#1352a2);
  min-width:28px;margin-top:1px;
}
.tech-step-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:4px}
.tech-step-desc{font-size:12.5px;color:rgba(255,255,255,.4);line-height:1.6}

/* CTA Band */
#cta-band{
  padding:96px 0;
  background:linear-gradient(135deg,#0d2855,#0a1e3c);
  position:relative;overflow:hidden;text-align:center;
}
.cta-band-glow{
  position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(19,82,162,.35),transparent 70%);
  pointer-events:none;
}
.cta-band-inner{position:relative;z-index:1}
.cta-band-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  border-radius:30px;padding:6px 16px;margin-bottom:20px;
  font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;
  color:rgba(255,255,255,.55);
}
.cta-band-h2{
  font-size:clamp(28px,4vw,52px);font-weight:900;
  color:#fff;letter-spacing:-1px;line-height:1.1;margin-bottom:16px;
}
.cta-band-sub{
  font-size:15px;color:rgba(255,255,255,.55);max-width:520px;
  margin:0 auto 36px;line-height:1.8;
}
.cta-band-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-cta-main{
  display:inline-flex;align-items:center;gap:8px;
  padding:15px 36px;background:var(--blue,#1352a2);color:#fff;
  font-size:15px;font-weight:700;border-radius:var(--r,8px);
  transition:all .25s;text-decoration:none;
  box-shadow:0 4px 24px rgba(19,82,162,.45);
}
.btn-cta-main:hover{background:#0d3d7a;transform:translateY(-2px);box-shadow:0 8px 32px rgba(19,82,162,.6)}
.btn-cta-outline{
  display:inline-flex;align-items:center;gap:8px;
  padding:15px 32px;background:transparent;color:rgba(255,255,255,.8);
  font-size:15px;font-weight:600;border-radius:var(--r,8px);
  border:1.5px solid rgba(255,255,255,.2);transition:all .25s;text-decoration:none;
}
.btn-cta-outline:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.35);color:#fff}

/* Footer */
#footer{background:#040d1a;color:rgba(255,255,255,.55)}
.footer-top{padding:60px 0 44px}
.footer-layout{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:48px}
.footer-brand-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand-logo .logo-mark{width:38px;height:38px;background:rgba(255,255,255,.08);border-radius:var(--r,8px);display:flex;align-items:center;justify-content:center}
.footer-brand-logo .logo-mark svg{width:20px;height:20px;fill:rgba(255,255,255,.6)}
.footer-brand-logo .logo-info strong{color:#fff;font-size:15px;font-weight:800}
.footer-brand-logo .logo-info em{font-style:normal;font-size:10px;color:rgba(255,255,255,.3);letter-spacing:1.5px}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(255,255,255,.35);max-width:260px;margin-bottom:20px}
.footer-socials{display:flex;gap:8px}
.footer-social{
  width:32px;height:32px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r,8px);display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:rgba(255,255,255,.4);transition:all .2s;text-decoration:none;
}
.footer-social:hover{background:rgba(19,82,162,.25);border-color:rgba(19,82,162,.4);color:#fff}
.footer-col-title{
  font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;
  color:rgba(255,255,255,.25);margin-bottom:20px;
}
.footer-link-list{display:flex;flex-direction:column;gap:10px}
.footer-link-list a{font-size:13px;color:rgba(255,255,255,.4);transition:color .2s;text-decoration:none}
.footer-link-list a:hover{color:rgba(255,255,255,.85)}
.footer-contact-item{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px}
.footer-contact-icon{
  width:28px;height:28px;min-width:28px;
  background:rgba(255,255,255,.06);border-radius:6px;
  display:flex;align-items:center;justify-content:center;margin-top:1px;
}
.footer-contact-icon svg{width:12px;height:12px;stroke:rgba(255,255,255,.4);fill:none;stroke-width:2}
.footer-contact-text strong{display:block;font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:rgba(255,255,255,.2);margin-bottom:2px}
.footer-contact-text p{font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.5}
.footer-divider{height:1px;background:rgba(255,255,255,.06)}
.footer-bottom{padding:20px 0;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px}
.footer-bottom-left{color:rgba(255,255,255,.25)}
.footer-bottom-right{display:flex;gap:24px}
.footer-bottom-right a{color:rgba(255,255,255,.25);text-decoration:none;transition:color .2s}
.footer-bottom-right a:hover{color:rgba(255,255,255,.6)}

/* ── 内页 page hero ─────────────────────────── */
.page-hero-2{
  padding:100px 0 52px;
  background:linear-gradient(135deg,var(--blue,#1352a2) 0%,#0d3d7a 100%);
  color:#fff;position:relative;overflow:hidden;
}
.page-hero-2::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.045) 1.5px,transparent 1.5px);
  background-size:36px 36px;
}
.page-hero-2 .container{position:relative;z-index:1}
.page-hero-2 h1{font-size:clamp(26px,4vw,48px);font-weight:900;letter-spacing:-1px;margin-bottom:10px}
.page-hero-2 p{font-size:15px;opacity:.65}
.breadcrumb-2{
  display:flex;gap:8px;align-items:center;margin-top:16px;
  font-size:12.5px;opacity:.5;
}
.breadcrumb-2 a{color:inherit;text-decoration:none;transition:opacity .2s}
.breadcrumb-2 a:hover{opacity:1}
.breadcrumb-2 span{opacity:.4}
.breadcrumb-2 em{font-style:normal;opacity:.9}

/* ── 产品列表页 ─────────────────────────────── */
.products-page-section{padding:64px 0 96px;background:var(--gray-50,#f8f9fb)}
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:36px}
.filter-pill{
  padding:8px 20px;border:1.5px solid var(--border,#e5e7eb);border-radius:30px;
  background:#fff;color:var(--gray-600,#4b5563);font-size:13px;font-weight:600;
  cursor:pointer;transition:all .2s;
}
.filter-pill:hover,.filter-pill.active{
  background:var(--blue,#1352a2);border-color:var(--blue,#1352a2);color:#fff;
}
/* 产品列表深色卡片 */
.products-page-section .prod-card-2{
  background:#fff;border-color:var(--border,#e5e7eb);
}
.products-page-section .prod-card-2:hover{border-color:var(--blue,#1352a2);box-shadow:var(--shadow-lg)}
.products-page-section .prod-cat{color:var(--blue,#1352a2)}
.products-page-section .prod-name-2{color:var(--gray-800,#1f2937)}
.products-page-section .prod-blurb{color:var(--text-muted,#6b7280)}
.products-page-section .spec-pill{
  background:var(--gray-100,#f0f2f5);border-color:var(--border,#e5e7eb);
  color:var(--gray-600,#4b5563);
}
.products-page-section .prod-link-2{color:var(--blue,#1352a2)}
.products-page-section .prod-link-2:hover{color:#0d3d7a}
.products-page-section .prod-badge-2{background:var(--blue,#1352a2)}

/* ── 产品详情页 ─────────────────────────────── */
.detail-section{padding:64px 0 96px;background:#fff}
.detail-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:60px;align-items:start}
.detail-img-box{
  background:var(--gray-50,#f8f9fb);border:1px solid var(--border,#e5e7eb);
  border-radius:var(--r-lg,16px);height:360px;
  display:flex;align-items:center;justify-content:center;position:sticky;top:90px;
}
.detail-img-box svg{width:120px;height:120px;stroke:var(--blue,#1352a2);fill:none;stroke-width:.8;opacity:.35}
.detail-cat{font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--blue,#1352a2);margin-bottom:10px}
.detail-name{font-size:clamp(22px,3vw,34px);font-weight:900;color:var(--gray-800,#1f2937);margin-bottom:14px;letter-spacing:-.3px}
.detail-sub{font-size:15px;color:var(--text-muted,#6b7280);line-height:1.8;margin-bottom:24px}
.detail-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.detail-tag-2{
  font-size:12px;font-weight:600;padding:5px 14px;
  border-radius:20px;background:rgba(19,82,162,.08);
  border:1px solid rgba(19,82,162,.15);color:var(--blue,#1352a2);
}
.spec-table-2{width:100%;border-collapse:collapse;margin-bottom:28px}
.spec-table-2 tr{border-bottom:1px solid var(--border,#e5e7eb)}
.spec-table-2 tr:last-child{border-bottom:none}
.spec-table-2 th,.spec-table-2 td{padding:12px 14px;font-size:13.5px;text-align:left}
.spec-table-2 th{background:var(--gray-50,#f8f9fb);color:var(--text-muted,#6b7280);font-weight:600;width:42%}
.spec-table-2 td{color:var(--gray-800,#1f2937)}
.spec-table-2 tr:hover td,.spec-table-2 tr:hover th{background:rgba(19,82,162,.03)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-detail-primary{
  display:inline-flex;align-items:center;
  padding:13px 28px;background:var(--blue,#1352a2);color:#fff;
  font-size:14px;font-weight:700;border-radius:var(--r,8px);
  transition:all .25s;text-decoration:none;
}
.btn-detail-primary:hover{background:#0d3d7a;transform:translateY(-2px);box-shadow:0 8px 24px rgba(19,82,162,.3)}
.btn-detail-ghost{
  display:inline-flex;align-items:center;
  padding:13px 24px;background:transparent;color:var(--blue,#1352a2);
  font-size:14px;font-weight:600;border-radius:var(--r,8px);
  border:1.5px solid var(--blue,#1352a2);transition:all .25s;text-decoration:none;
}
.btn-detail-ghost:hover{background:var(--blue,#1352a2);color:#fff}

/* ── 关于页 ─────────────────────────────────── */
.about-page-section{padding:64px 0 96px;background:#fff}
.about-page-wrap{max-width:900px;margin:0 auto}
.about-page-intro{
  font-size:17px;color:var(--text-muted,#6b7280);line-height:1.9;
  border-left:3px solid var(--blue,#1352a2);padding-left:24px;margin-bottom:48px;
}
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--border,#e5e7eb);border-radius:var(--r-lg,16px);
  overflow:hidden;margin:48px 0;
}
.stat-cell{
  padding:28px 16px;text-align:center;border-right:1px solid var(--border,#e5e7eb);
  transition:background .3s;
}
.stat-cell:last-child{border-right:none}
.stat-cell:hover{background:var(--blue,#1352a2)}
.stat-cell:hover .stat-cell-num,.stat-cell:hover .stat-cell-label{color:#fff}
.stat-cell-num{font-size:32px;font-weight:900;color:var(--blue,#1352a2);line-height:1;margin-bottom:6px;display:block}
.stat-cell-label{font-size:12px;color:var(--text-muted,#6b7280);font-weight:500}
.timeline-2{display:flex;flex-direction:column;gap:0;position:relative;padding-left:40px}
.timeline-2::before{content:'';position:absolute;left:6px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--blue,#1352a2),rgba(19,82,162,.1))}
.timeline-item-2{position:relative;padding-bottom:32px}
.timeline-item-2::before{
  content:'';position:absolute;left:-40px;top:3px;
  width:14px;height:14px;background:var(--blue,#1352a2);border-radius:50%;
  border:3px solid #fff;box-shadow:0 0 0 3px rgba(19,82,162,.2);
}
.timeline-year-2{
  display:inline-block;font-size:11px;font-weight:800;letter-spacing:1.5px;
  color:var(--blue,#1352a2);background:rgba(19,82,162,.07);
  padding:3px 12px;border-radius:20px;margin-bottom:8px;
}
.timeline-text-2{font-size:15px;color:var(--text-muted,#6b7280);line-height:1.75}
.tech-center-box{
  background:var(--gray-50,#f8f9fb);border:1px solid var(--border,#e5e7eb);
  border-radius:var(--r-lg,16px);padding:40px 40px;margin:56px 0;
}
.tech-checklist{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.tech-check{display:flex;gap:12px;align-items:flex-start}
.tech-check-icon{
  width:32px;height:32px;min-width:32px;background:rgba(19,82,162,.09);
  border-radius:8px;display:flex;align-items:center;justify-content:center;margin-top:1px;
}
.tech-check-icon svg{width:16px;height:16px;stroke:var(--blue,#1352a2);fill:none;stroke-width:2.5}
.tech-check strong{display:block;font-size:14px;font-weight:700;color:var(--gray-800,#1f2937);margin-bottom:3px}
.tech-check p{font-size:13px;color:var(--text-muted,#6b7280);line-height:1.55}
.cert-grid-2{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.cert-card-2{
  background:var(--gray-50,#f8f9fb);border:1px solid var(--border,#e5e7eb);
  border-radius:var(--r-lg,16px);padding:24px 20px;text-align:center;transition:all .3s;
}
.cert-card-2:hover{border-color:var(--blue,#1352a2);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.cert-card-2 svg{width:36px;height:36px;stroke:var(--blue,#1352a2);fill:none;stroke-width:1.5;margin:0 auto 12px}
.cert-card-2 p{font-size:13px;font-weight:600;color:var(--gray-600,#4b5563);line-height:1.5}

/* CTA Band（关于页用同一个CTA组件） */
#cta-band .eyebrow{color:rgba(255,255,255,.45)}
#cta-band .eyebrow::before{background:rgba(255,255,255,.45)}

/* ── 联系页 ─────────────────────────────────── */
.contact-page-section{padding:64px 0 96px;background:var(--gray-50,#f8f9fb)}
.contact-layout-2{display:grid;grid-template-columns:1fr 1.4fr;gap:56px;align-items:start}
.contact-info-2 h3{font-size:24px;font-weight:800;color:var(--gray-800,#1f2937);margin-bottom:8px}
.contact-info-2 .lead{font-size:14px;color:var(--text-muted,#6b7280);margin-bottom:36px;line-height:1.75}
.contact-item-2{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px}
.contact-icon-2{
  width:44px;height:44px;min-width:44px;
  background:rgba(19,82,162,.08);border-radius:var(--r,8px);
  display:flex;align-items:center;justify-content:center;
}
.contact-icon-2 svg{width:20px;height:20px;stroke:var(--blue,#1352a2);fill:none;stroke-width:2}
.contact-item-2 strong{display:block;font-size:12px;font-weight:700;color:var(--text-muted,#6b7280);letter-spacing:.5px;text-transform:uppercase;margin-bottom:3px}
.contact-item-2 p{font-size:14px;color:var(--gray-800,#1f2937);line-height:1.6}
.contact-tip{
  background:#fff;border:1px solid var(--border,#e5e7eb);
  border-radius:var(--r-lg,16px);padding:20px 24px;margin-top:16px;
}
.contact-tip h4{font-size:13px;font-weight:700;color:var(--blue,#1352a2);margin-bottom:12px}
.contact-tip ul{display:flex;flex-direction:column;gap:7px}
.contact-tip li{display:flex;gap:8px;font-size:13px;color:var(--text-muted,#6b7280);line-height:1.5}
.contact-tip li::before{content:'·';color:var(--blue,#1352a2);font-weight:900;flex-shrink:0}
.inquiry-form-2{
  background:#fff;border:1px solid var(--border,#e5e7eb);
  border-radius:var(--r-lg,16px);padding:36px;box-shadow:var(--shadow-sm);
}
.inquiry-form-2 h3{font-size:20px;font-weight:800;color:var(--gray-800,#1f2937);margin-bottom:28px}
.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group-2{margin-bottom:16px}
.form-group-2 label{display:block;font-size:11.5px;font-weight:700;letter-spacing:.5px;color:var(--text-muted,#6b7280);margin-bottom:7px}
.form-group-2 input,.form-group-2 select,.form-group-2 textarea{
  width:100%;padding:11px 14px;
  border:1.5px solid var(--border,#e5e7eb);border-radius:var(--r,8px);
  font-size:14px;font-family:inherit;color:var(--gray-800,#1f2937);
  background:var(--gray-50,#f8f9fb);outline:none;
  transition:all .2s;appearance:none;
}
.form-group-2 input::placeholder,.form-group-2 textarea::placeholder{color:var(--gray-400,#9ba3af)}
.form-group-2 input:focus,.form-group-2 select:focus,.form-group-2 textarea:focus{
  border-color:var(--blue,#1352a2);background:#fff;
  box-shadow:0 0 0 3px rgba(19,82,162,.08);
}
.form-group-2 textarea{min-height:120px;resize:vertical}
.form-group-2 select{cursor:pointer;color:var(--gray-600,#4b5563)}
.form-submit-2{
  width:100%;padding:14px;background:var(--blue,#1352a2);color:#fff;
  font-size:15px;font-weight:700;border:none;border-radius:var(--r,8px);
  cursor:pointer;transition:all .25s;
}
.form-submit-2:hover{background:#0d3d7a;transform:translateY(-2px);box-shadow:0 8px 24px rgba(19,82,162,.3)}
.form-submit-2:disabled{opacity:.6;cursor:not-allowed;transform:none}
.form-success-2{
  display:none;padding:16px;text-align:center;margin-top:14px;
  background:#f0fdf4;border:1px solid #86efac;border-radius:var(--r,8px);
  color:#166534;font-size:14px;font-weight:600;
}
.map-box{margin-top:56px}
.map-placeholder{
  height:260px;background:var(--gray-100,#f0f2f5);
  border:1px solid var(--border,#e5e7eb);border-radius:var(--r-lg,16px);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--text-muted,#6b7280);font-size:13px;text-align:center;
}
.map-placeholder svg{width:36px;height:36px;stroke:var(--blue,#1352a2);fill:none;stroke-width:1.2;margin-bottom:10px;opacity:.5}

/* reveal动画延迟 */
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}

/* ══════════════════════════════════════════════
   RESPONSIVE（完整移动端适配）
═══════════════════════════════════════════════ */
@media(max-width:1024px){
  .features-grid{grid-template-columns:1fr 1fr}
  .prod-grid-2{grid-template-columns:1fr 1fr}
  .app-grid-2{grid-template-columns:1fr 1fr}
  .about-split{grid-template-columns:1fr;gap:40px}
  .about-badge{right:0;top:auto;bottom:-16px}
  .tech-layout{grid-template-columns:1fr;gap:48px}
  .tech-visual{order:-1}
  .footer-layout{grid-template-columns:1fr 1fr;gap:36px}
  .stats-strip{grid-template-columns:1fr 1fr}
  .stat-cell:nth-child(2){border-right:none}
  .stat-cell:nth-child(3){border-top:1px solid var(--border)}
  .cert-grid-2{grid-template-columns:1fr 1fr}
  .contact-layout-2{grid-template-columns:1fr}
  .detail-grid{grid-template-columns:1fr}
  .detail-img-box{position:static;height:280px}
  .tech-checklist{grid-template-columns:1fr}
}
@media(max-width:768px){
  /* Header */
  .nav-menu{display:none}
  .nav-btn{display:none}
  .hamburger{display:flex}
  .nav-menu.open{
    display:flex;flex-direction:column;gap:4px;
    position:fixed;top:68px;left:0;right:0;
    background:rgba(255,255,255,.98);backdrop-filter:blur(16px);
    padding:16px;border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-md);z-index:99;
  }
  .nav-menu.open a{
    padding:13px 16px;border-radius:var(--r);font-size:15px;
    color:var(--gray-800) !important;
  }
  .nav-menu.open a.active,.nav-menu.open a:hover{color:var(--blue) !important;background:rgba(19,82,162,.06)}
  .nav-menu.open a::after{display:none}
  /* Hero */
  .hero-inner{padding-top:120px;padding-bottom:0;min-height:auto;justify-content:flex-end;padding-bottom:20px}
  #hero{min-height:100svh}
  .hero-h1{letter-spacing:-1px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn-hero-primary,.btn-hero-ghost{text-align:center;justify-content:center}
  .scroll-hint{display:none}
  .hero-stats-inner{flex-wrap:wrap}
  .hero-stat-item{flex:1 1 33.33%;border-bottom:1px solid rgba(255,255,255,.07)}
  /* Grid 2列 -> 1列 */
  .features-grid{grid-template-columns:1fr}
  .prod-grid-2{grid-template-columns:1fr}
  .app-grid-2{grid-template-columns:1fr}
  /* Footer */
  .footer-layout{grid-template-columns:1fr;gap:28px}
  /* Form */
  .form-row-2{grid-template-columns:1fr}
  .inquiry-form-2{padding:24px 18px}
  /* Stats strip */
  .stats-strip{grid-template-columns:1fr 1fr}
  .stat-cell:nth-child(2n){border-right:none}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--border)}
  /* About visual */
  .about-main-img{height:320px}
  .about-img-stats{grid-template-columns:repeat(2,1fr)}
  .about-badge{right:0}
  /* Cert */
  .cert-grid-2{grid-template-columns:1fr 1fr}
  /* Timeline */
  .timeline-2{padding-left:28px}
  .timeline-item-2::before{left:-28px;width:12px;height:12px}
  /* Tech center */
  .tech-center-box{padding:24px 20px}
  /* CTA */
  .cta-band-actions{flex-direction:column;align-items:center}
  .btn-cta-main,.btn-cta-outline{text-align:center;justify-content:center}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero-h1{font-size:clamp(30px,8vw,42px)}
  .hero-stat-item{flex:1 1 50%}
  .prod-visual{height:160px}
  .stats-strip{grid-template-columns:1fr}
  .stat-cell{border-right:none !important;border-bottom:1px solid var(--border)}
  .stat-cell:last-child{border-bottom:none}
  .cert-grid-2{grid-template-columns:1fr}
  .tech-checklist{grid-template-columns:1fr}
  .detail-grid{gap:28px}
  .page-hero-2{padding:88px 0 40px}
  .products-page-section,.detail-section,.about-page-section,.contact-page-section{padding:40px 0 64px}
  .filter-bar{gap:6px}
  .filter-pill{padding:7px 14px;font-size:12px}
  .features-grid{gap:12px}
  .feature-card{padding:24px 20px}
}

/* 调整导航栏电话位置 */
.nav-phone {
  margin-right: 40px;
}