*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#0a0e17;--bg2:#0d1220;--text:#e0e6ed;--text-dim:#8892a4;
  --accent:#4fc3f7;--accent2:#7c4dff;--accent3:#00e5ff;--accent4:#ff6e40;
  --glass:rgba(13,18,32,0.72);--glass-border:rgba(79,195,247,0.15);
  --glow:0 0 30px rgba(79,195,247,0.15);
}
html{font-size:16px;overflow:hidden;height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg);color:var(--text);overflow:hidden;line-height:1.6;height:100%;
}
canvas#particle-canvas{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}

/* ===== NAV ===== */
nav{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(10,14,23,0.85);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--glass-border);transition:all .3s;
}
nav.scrolled{background:rgba(10,14,23,0.95);box-shadow:var(--glow)}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 2rem;height:64px}
.nav-logo{font-size:1.25rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:1px;display:flex;align-items:flex-end;gap:.5rem}
.nav-logo-img{height:32px;width:auto;display:block}
.nav-logo span{font-size:.75rem;-webkit-text-fill-color:var(--text-dim);margin-left:.2rem;letter-spacing:0}
.nav-links{display:flex;gap:2rem;list-style:none}
.nav-links a{color:var(--text-dim);text-decoration:none;font-size:.875rem;position:relative;transition:color .3s}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:var(--accent);transition:width .3s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.nav-toggle span{width:24px;height:2px;background:var(--text);transition:all .3s}

/* ===== FULLPAGE ===== */
.fullpage-wrapper{
  position:fixed;top:0;left:0;width:100%;height:100vh;z-index:1;
  transition:transform .8s cubic-bezier(.645,.045,.355,1);
}
.fp-section{
  position:relative;width:100%;height:100vh;display:flex;align-items:center;justify-content:center;
  padding:5rem 2rem 2rem;overflow:hidden;
}
.section-inner{max-width:1100px;width:100%;margin:0 auto}

/* ===== SIDE DOTS ===== */
.side-dots{
  position:fixed;right:2rem;top:50%;transform:translateY(-50%);z-index:101;
  display:flex;flex-direction:column;gap:1rem;
}
.dot{
  width:12px;height:12px;border-radius:50%;border:2px solid var(--text-dim);
  background:transparent;cursor:pointer;transition:all .3s;position:relative;
}
.dot:hover{border-color:var(--accent);box-shadow:0 0 10px rgba(79,195,247,0.3)}
.dot.active{background:var(--accent);border-color:var(--accent);box-shadow:0 0 12px rgba(79,195,247,0.5)}
.dot::after{
  content:attr(title);position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:.75rem;color:var(--text-dim);white-space:nowrap;opacity:0;
  transition:opacity .3s;pointer-events:none;
}
.dot:hover::after{opacity:1}

/* ===== HERO (首页) ===== */
#home{text-align:center}
#home .hero-badge{
  display:inline-block;padding:.375rem 1.25rem;border:1px solid var(--accent);border-radius:999px;
  font-size:.8rem;color:var(--accent);letter-spacing:2px;margin-bottom:2rem;
  background:rgba(79,195,247,0.06);
}
#home h1{
  font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.2;margin-bottom:1rem;
  background:linear-gradient(135deg,#fff 0%,var(--accent) 50%,var(--accent2) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
#home .subtitle{font-size:1.1rem;color:var(--accent);margin-bottom:1.5rem;letter-spacing:3px}
#home .desc{font-size:1.05rem;color:var(--text-dim);max-width:640px;margin:0 auto 2.5rem}
.hero-features{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap;margin-bottom:3rem}
.hero-features .feat{
  padding:.6rem 1.6rem;border-radius:12px;font-size:.9rem;font-weight:600;
  background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(10px);
  transition:all .3s;cursor:default;display:flex;align-items:center;gap:.5rem;
}
.feat-icon{width:20px;height:20px;color:var(--accent);flex-shrink:0}
.hero-features .feat:hover{border-color:var(--accent);box-shadow:0 0 20px rgba(79,195,247,0.2);transform:translateY(-2px)}
.cta-btn{
  display:inline-block;padding:.85rem 2.5rem;border-radius:999px;font-size:1rem;font-weight:600;
  background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;text-decoration:none;
  box-shadow:0 4px 24px rgba(79,195,247,0.3);transition:all .3s;cursor:pointer;border:none;
}
.cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(79,195,247,0.45)}
.scroll-hint{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;color:var(--text-dim);font-size:.75rem;
  animation:float 2s ease-in-out infinite;
}
.scroll-hint .arrow{width:20px;height:20px;border-right:2px solid var(--text-dim);border-bottom:2px solid var(--text-dim);transform:rotate(45deg)}
@keyframes float{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(8px)}}

/* ===== NEURAL (核心产品) ===== */
#products{background:linear-gradient(180deg,transparent,rgba(124,77,255,0.03),transparent)}
#products .section-tag{color:var(--accent2)}
#products h2{
  font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:.75rem;
  background:linear-gradient(135deg,#fff,var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
#products .subtitle{color:var(--accent2);font-size:1rem;letter-spacing:2px;margin-bottom:1.5rem}
#products .desc{color:var(--text-dim);max-width:720px;margin-bottom:3rem;line-height:1.8}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem}
.product-card{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;padding:2rem;
  backdrop-filter:blur(12px);transition:all .4s;position:relative;overflow:hidden;text-align:center;
}
.product-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent2),var(--accent));opacity:0;transition:opacity .3s;
}
.product-card:hover{transform:translateY(-6px);border-color:rgba(124,77,255,0.4);box-shadow:0 12px 40px rgba(124,77,255,0.15)}
.product-card:hover::before{opacity:1}
.product-card .icon{margin-bottom:1rem}
.product-card .icon svg{width:56px;height:56px}
.product-card h3{font-size:1.15rem;font-weight:700;margin-bottom:.5rem;color:#fff}
.product-card p{font-size:.875rem;color:var(--text-dim);line-height:1.6}

/* ===== WAVE (服务内容) ===== */
#services{background:linear-gradient(180deg,transparent,rgba(0,229,255,0.03),transparent)}
#services .section-tag{color:var(--accent3)}
#services h2{
  font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:.75rem;
  background:linear-gradient(135deg,#fff,var(--accent3));-webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
#services .subtitle{color:var(--accent3);font-size:1rem;letter-spacing:2px;margin-bottom:1.5rem}
#services .desc{color:var(--text-dim);max-width:720px;margin-bottom:3rem;line-height:1.8}
.steps{display:flex;gap:0;position:relative;flex-wrap:wrap;justify-content:center}
.step{
  flex:1;min-width:200px;max-width:260px;text-align:center;padding:2rem 1.5rem;position:relative;
}
.step-num{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:1.25rem;font-weight:800;margin:0 auto 1.25rem;
  background:linear-gradient(135deg,rgba(0,229,255,0.15),rgba(0,229,255,0.05));
  border:2px solid var(--accent3);color:var(--accent3);
  transition:all .3s;
}
.step:hover .step-num{background:var(--accent3);color:var(--bg);box-shadow:0 0 30px rgba(0,229,255,0.4)}
.step h3{font-size:1.05rem;font-weight:700;margin-bottom:.5rem;color:#fff}
.step p{font-size:.8rem;color:var(--text-dim);line-height:1.5}
.step-connector{
  position:absolute;top:28px;left:calc(50% + 40px);width:calc(100% - 80px);height:2px;
  background:linear-gradient(90deg,var(--accent3),transparent);opacity:.3;
}
.step:last-child .step-connector{display:none}

/* ===== LOGO (关于我们) ===== */
#about{background:linear-gradient(180deg,transparent,rgba(79,195,247,0.02),transparent)}
#about .section-tag{color:var(--accent)}
#about h2{
  font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:.75rem;
  background:linear-gradient(135deg,#fff,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
#about .subtitle{color:var(--accent);font-size:1rem;margin-bottom:1.5rem}
#about .desc{color:var(--text-dim);max-width:720px;margin-bottom:3rem;line-height:1.8}
.values{display:flex;gap:2rem;flex-wrap:wrap;justify-content:center}
.value-item{
  text-align:center;padding:2rem;border-radius:16px;
  background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(12px);
  min-width:200px;flex:1;max-width:300px;transition:all .3s;
}
.value-item:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 30px rgba(79,195,247,0.1)}
.value-icon{margin-bottom:1rem}
.value-icon svg{width:56px;height:56px}
.value-item h3{font-size:1rem;font-weight:700;color:#fff;margin-bottom:.35rem}
.value-item p{font-size:.8rem;color:var(--text-dim)}

/* ===== ABSTRACT (联系我们) ===== */
#contact{background:linear-gradient(180deg,transparent,rgba(255,110,64,0.03),transparent)}
#contact .section-tag{color:var(--accent4)}
#contact h2{
  font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:.75rem;
  background:linear-gradient(135deg,#fff,var(--accent4));-webkit-background-clip:text;-webkit-text-fill-color:transparent;
}
#contact .subtitle{color:var(--accent4);font-size:1rem;margin-bottom:1.5rem}
#contact .desc{color:var(--text-dim);max-width:640px;margin-bottom:3rem;line-height:1.8}
.contact-grid{display:flex;gap:2rem;flex-wrap:wrap}
.contact-info{flex:1;min-width:280px}
.contact-item{
  display:flex;align-items:flex-start;gap:1rem;padding:1.25rem 0;
  border-bottom:1px solid rgba(255,110,64,0.1);
}
.contact-item:last-child{border-bottom:none}
.contact-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,110,64,0.1);flex-shrink:0;
}
.contact-icon svg{width:22px;height:22px;color:var(--accent4)}
.contact-item h4{font-size:.9rem;font-weight:600;color:#fff;margin-bottom:.15rem}
.contact-item p{font-size:.85rem;color:var(--text-dim)}
.contact-qr{flex:1;min-width:280px;display:flex;align-items:center;justify-content:center;margin-top:-30px}
.qr-wrapper{
  text-align:center;padding:2rem;border-radius:16px;
  background:var(--glass);border:1px solid var(--glass-border);backdrop-filter:blur(12px);
}
.qr-image{width:200px;height:200px;border-radius:12px;object-fit:contain;background:#fff;padding:8px}
.qr-text{margin-top:1rem;font-size:.9rem;color:var(--text-dim);letter-spacing:1px}

/* ===== FOOTER ===== */
footer{
  position:absolute;bottom:0;left:0;width:100%;z-index:1;text-align:center;padding:2rem;
  border-top:1px solid var(--glass-border);font-size:.8rem;color:var(--text-dim);
}
footer a{color:var(--text-dim);text-decoration:none;transition:color .3s}
footer a:hover{color:var(--accent)}

/* ===== SECTION COMMON ===== */
.section-tag{
  display:inline-block;font-size:.75rem;letter-spacing:3px;text-transform:uppercase;
  margin-bottom:1rem;padding:.25rem .75rem;border-radius:4px;
  background:rgba(79,195,247,0.08);
}
h2{margin-bottom:.5rem}

/* ===== SCROLL ANIMATIONS ===== */
.reveal{opacity:0;transform:translateY(40px);transition:all .8s cubic-bezier(.16,1,.3,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-40px);transition:all .8s cubic-bezier(.16,1,.3,1)}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(40px);transition:all .8s cubic-bezier(.16,1,.3,1)}
.reveal-right.visible{opacity:1;transform:translateX(0)}
.reveal-scale{opacity:0;transform:scale(0.9);transition:all .8s cubic-bezier(.16,1,.3,1)}
.reveal-scale.visible{opacity:1;transform:scale(1)}

/* ===== GLOW LINE ===== */
.glow-line{
  width:80px;height:3px;border-radius:2px;margin:1.5rem 0;
  background:linear-gradient(90deg,var(--accent),transparent);
}
#products .glow-line{background:linear-gradient(90deg,var(--accent2),transparent)}
#services .glow-line{background:linear-gradient(90deg,var(--accent3),transparent)}
#about .glow-line{background:linear-gradient(90deg,var(--accent),transparent)}
#contact .glow-line{background:linear-gradient(90deg,var(--accent4),transparent)}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;background:rgba(10,14,23,0.97);
    flex-direction:column;align-items:center;padding:2rem 0;gap:1.5rem;
    transform:translateY(-120%);transition:transform .3s;backdrop-filter:blur(20px);
  }
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:flex}
  .step-connector{display:none!important}
  .steps{flex-direction:column;align-items:center}
  .contact-grid{flex-direction:column}
  .fp-section{padding:4.5rem 1.25rem 1.5rem}
  .side-dots{right:.75rem;gap:.75rem}
  .dot{width:10px;height:10px}
  .dot::after{display:none}
}
@media(max-width:480px){
  .hero-features{flex-direction:column;align-items:center}
  .product-grid{grid-template-columns:1fr}
  .values{flex-direction:column;align-items:center}
}

/* ===== TYPING CURSOR ===== */
.typing-cursor{
  display:inline-block;width:3px;height:1em;background:var(--accent);margin-left:4px;
  animation:blink 1s step-end infinite;vertical-align:text-bottom;
}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}

/* ===== COUNTER ===== */
.counter-row{display:flex;gap:3rem;justify-content:center;flex-wrap:wrap;margin:3rem 0}
.counter-item{text-align:center}
.counter-num{font-size:2.5rem;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.counter-label{font-size:.8rem;color:var(--text-dim);margin-top:.25rem}