/* === zjjrobot.com — 张家界人工AI智能 === */
/* Design: Tech-noir × Zhangjiajie Fantasy */
/* Palette: Deep Space + Emerald + Neon Blue + Amber Gold */

:root {
  --bg-deep: #0a0e17;
  --bg-card: #111827;
  --bg-card-hover: #1a2235;
  --bg-surface: #161d2b;
  --text-primary: #e8ecf1;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-emerald: #00c897;
  --accent-emerald-glow: rgba(0,200,151,0.3);
  --accent-blue: #5b8def;
  --accent-blue-glow: rgba(91,141,239,0.3);
  --accent-gold: #f0c060;
  --accent-gold-glow: rgba(240,192,96,0.25);
  --accent-rose: #e94560;
  --accent-rose-glow: rgba(233,69,96,0.25);
  --border-subtle: rgba(255,255,255,0.06);
  --border-card: rgba(255,255,255,0.08);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 0 4px 30px rgba(0,0,0,0.4);
  --shadow-glow-emerald: 0 0 40px rgba(0,200,151,0.15);
  --shadow-glow-blue: 0 0 40px rgba(91,141,239,0.1);
  --font-display: 'Orbitron', 'Noto Sans SC', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --max-width: 1280px;
  --nav-height: 72px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:var(--font-body);
  background:var(--bg-deep);
  color:var(--text-primary);
  line-height:1.7;
  overflow-x:hidden;
  min-height:100vh;
}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-emerald)}
img{max-width:100%;height:auto;display:block}

/* === Background Effects === */
.bg-grid{
  position:fixed;top:0;left:0;width:100%;height:100%;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(0,200,151,0.03) 0%, transparent 50%),
    radial-gradient(circle at 75% 60%, rgba(91,141,239,0.03) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(240,192,96,0.02) 0%, transparent 40%),
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size:100% 100%, 100% 100%, 100% 100%, 60px 60px, 60px 60px;
  pointer-events:none;z-index:0;
}

/* === Navbar === */
.navbar{
  position:fixed;top:0;left:0;width:100%;height:var(--nav-height);
  background:rgba(10,14,23,0.85);
  backdrop-filter:blur(20px) saturate(180%);
  -webkit-backdrop-filter:blur(20px) saturate(180%);
  border-bottom:1px solid var(--border-subtle);
  z-index:1000;
  display:flex;align-items:center;
}
.nav-inner{
  max-width:var(--max-width);width:100%;
  margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{
  display:flex;align-items:center;gap:12px;
  font-family:var(--font-display);
  font-size:1.15rem;font-weight:700;letter-spacing:1px;
  color:var(--text-primary);
  white-space:nowrap;
}
.nav-logo .logo-icon{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--accent-emerald),var(--accent-blue));
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;
}
.nav-logo .logo-dot{
  width:8px;height:8px;
  background:var(--accent-emerald);
  border-radius:50%;
  box-shadow:0 0 12px var(--accent-emerald-glow);
  animation:pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:0.5;transform:scale(1.5)}
}
.nav-links{
  display:flex;align-items:center;gap:4px;
  list-style:none;
}
.nav-links a{
  padding:8px 16px;border-radius:8px;
  font-size:0.9rem;font-weight:500;
  color:var(--text-secondary);
  transition:all var(--transition);
  white-space:nowrap;
}
.nav-links a:hover,
.nav-links a.active{
  color:var(--accent-emerald);
  background:rgba(0,200,151,0.08);
}
.nav-cta{
  display:flex;align-items:center;gap:12px;
}
.nav-cta .tel-btn{
  padding:8px 12px;border-radius:8px;
  font-size:0.85rem;color:var(--accent-gold);
  border:1px solid rgba(240,192,96,0.2);
  background:rgba(240,192,96,0.05);
  transition:all var(--transition);
  white-space:nowrap;
}
.nav-cta .tel-btn:hover{
  border-color:var(--accent-gold);
  background:rgba(240,192,96,0.12);
  color:var(--accent-gold);
}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;z-index:1001;background:none;border:none;padding:4px}
.nav-toggle span{width:24px;height:2px;background:var(--text-primary);border-radius:1px;transition:var(--transition)}

/* === Page Header === */
.page-header{
  padding:calc(var(--nav-height) + 60px) 24px 40px;
  text-align:center;max-width:800px;margin:0 auto;
  position:relative;z-index:1;
}
.page-header h1{
  font-family:var(--font-display);
  font-size:2.6rem;font-weight:800;letter-spacing:2px;
  background:linear-gradient(135deg,var(--accent-emerald),var(--accent-blue),var(--accent-gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:12px;
}
.page-header .subtitle{
  font-size:1.1rem;color:var(--text-secondary);
  line-height:1.6;
}
.page-header::after{
  content:'';display:block;
  width:60px;height:3px;
  background:linear-gradient(90deg,var(--accent-emerald),var(--accent-blue));
  margin:20px auto 0;
  border-radius:2px;
}

/* === Hero Section === */
.hero{
  min-height:100vh;padding-top:var(--nav-height);
  display:flex;align-items:center;
  position:relative;z-index:1;
  overflow:hidden;
}
.hero-bg{
  position:absolute;top:0;left:0;width:100%;height:100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0,200,151,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(91,141,239,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(240,192,96,0.05) 0%, transparent 40%);
  z-index:0;
}
.hero .hero-illustration{
  position:absolute;right:-5%;top:15%;width:55%;
  height:70%;
  background:
    radial-gradient(circle at 40% 30%, rgba(0,200,151,0.06) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, rgba(91,141,239,0.08) 0%, transparent 50%);
  z-index:0;
  /* Geometric AI neural net visual */
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(0,200,151,0.03) 2px, rgba(0,200,151,0.03) 4px),
    radial-gradient(circle at 40% 30%, rgba(0,200,151,0.06) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, rgba(91,141,239,0.08) 0%, transparent 50%);
}
.hero-inner{
  max-width:var(--max-width);width:100%;
  margin:0 auto;padding:0 24px;
  position:relative;z-index:2;
}
.hero-content{max-width:620px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:20px;
  background:rgba(0,200,151,0.08);
  border:1px solid rgba(0,200,151,0.15);
  font-size:0.85rem;color:var(--accent-emerald);
  margin-bottom:24px;
  font-family:var(--font-mono);
  letter-spacing:0.5px;
}
.hero-badge .dot{
  width:8px;height:8px;
  background:var(--accent-emerald);
  border-radius:50%;
  box-shadow:0 0 8px var(--accent-emerald-glow);
  animation:pulse-dot 2s ease-in-out infinite;
}
.hero h1{
  font-family:var(--font-display);
  font-size:3.2rem;font-weight:800;line-height:1.2;
  letter-spacing:2px;
  margin-bottom:20px;
  background:linear-gradient(135deg,var(--accent-emerald) 0%,var(--accent-blue) 60%,var(--accent-gold) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero .hero-desc{
  font-size:1.15rem;color:var(--text-secondary);
  margin-bottom:36px;line-height:1.8;
}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:12px;
  font-size:0.95rem;font-weight:600;
  cursor:pointer;border:none;
  transition:all var(--transition);
  font-family:var(--font-body);
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent-emerald),#00a87a);
  color:#000;
  box-shadow:0 4px 20px var(--accent-emerald-glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 30px rgba(0,200,151,0.4);
  color:#000;
}
.btn-outline{
  background:transparent;
  color:var(--accent-gold);
  border:1px solid rgba(240,192,96,0.3);
}
.btn-outline:hover{
  background:rgba(240,192,96,0.08);
  border-color:var(--accent-gold);
  color:var(--accent-gold);
  transform:translateY(-2px);
}
.btn-ghost{
  background:rgba(255,255,255,0.03);
  color:var(--text-primary);
  border:1px solid var(--border-card);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.06);
  border-color:rgba(255,255,255,0.15);
}

/* === Section Base === */
.section{padding:80px 24px;position:relative;z-index:1}
.section-inner{max-width:var(--max-width);margin:0 auto}
.section-title{
  text-align:center;margin-bottom:56px;
}
.section-title h2{
  font-family:var(--font-display);
  font-size:2rem;font-weight:700;letter-spacing:2px;
  margin-bottom:12px;
}
.section-title h2 span{
  background:linear-gradient(135deg,var(--accent-emerald),var(--accent-blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.section-title p{
  color:var(--text-secondary);font-size:1.05rem;
}

/* === Value Props 3-col === */
.value-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.value-card{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-md);
  padding:36px 28px;
  transition:all var(--transition);
  position:relative;overflow:hidden;
}
.value-card::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--accent-emerald),var(--accent-blue));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--transition);
}
.value-card:hover::before{transform:scaleX(1)}
.value-card:hover{
  border-color:rgba(0,200,151,0.2);
  box-shadow:var(--shadow-glow-emerald);
  transform:translateY(-4px);
}
.value-card .card-icon{
  font-size:2.2rem;margin-bottom:20px;
  width:56px;height:56px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,200,151,0.06);
  border-radius:14px;
}
.value-card h3{
  font-size:1.1rem;font-weight:700;margin-bottom:10px;
  color:var(--text-primary);
}
.value-card p{
  font-size:0.9rem;color:var(--text-secondary);line-height:1.7;
}

/* === Product Grid 6-col === */
.product-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.product-card{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-md);
  padding:32px 24px;
  transition:all var(--transition);
  position:relative;
}
.product-card:hover{
  border-color:rgba(91,141,239,0.2);
  box-shadow:var(--shadow-glow-blue);
  transform:translateY(-4px);
}
.product-card .pc-icon{
  width:48px;height:48px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;
  margin-bottom:18px;
}
.product-card:nth-child(1) .pc-icon{background:rgba(0,200,151,0.1);color:var(--accent-emerald)}
.product-card:nth-child(2) .pc-icon{background:rgba(91,141,239,0.1);color:var(--accent-blue)}
.product-card:nth-child(3) .pc-icon{background:rgba(240,192,96,0.1);color:var(--accent-gold)}
.product-card:nth-child(4) .pc-icon{background:rgba(233,69,96,0.1);color:var(--accent-rose)}
.product-card:nth-child(5) .pc-icon{background:rgba(0,200,151,0.1);color:var(--accent-emerald)}
.product-card:nth-child(6) .pc-icon{background:rgba(91,141,239,0.1);color:var(--accent-blue)}
.product-card h3{font-size:1.05rem;margin-bottom:8px;font-weight:700}
.product-card p{font-size:0.88rem;color:var(--text-secondary);line-height:1.7;margin-bottom:16px}
.product-card .pc-link{
  display:inline-flex;align-items:center;gap:4px;
  font-size:0.85rem;font-weight:600;
  color:var(--accent-emerald);
  transition:gap var(--transition);
}
.product-card .pc-link:hover{gap:8px}

/* === Scene Section === */
.scene-block{
  display:grid;grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;
  margin-bottom:60px;
}
.scene-block:last-child{margin-bottom:0}
.scene-visual{
  height:360px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
}
.scene-bg-1{
  background:linear-gradient(135deg,rgba(0,200,151,0.1),rgba(91,141,239,0.1));
  background-image:
    radial-gradient(circle at 30% 40%, rgba(0,200,151,0.08) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, rgba(91,141,239,0.06) 0%, transparent 50%),
    linear-gradient(135deg, rgba(10,14,23,0.9) 0%, rgba(0,200,151,0.05) 100%);
}
.scene-bg-2{
  background:linear-gradient(135deg,rgba(91,141,239,0.1),rgba(240,192,96,0.1));
  background-image:
    radial-gradient(circle at 20% 50%, rgba(91,141,239,0.08) 0%, transparent 60%),
    radial-gradient(circle at 80% 30%, rgba(240,192,96,0.06) 0%, transparent 50%),
    linear-gradient(135deg, rgba(10,14,23,0.9) 0%, rgba(91,141,239,0.05) 100%);
}
.scene-visual .scene-label{
  position:absolute;top:20px;left:20px;
  padding:4px 14px;border-radius:20px;
  background:rgba(0,0,0,0.5);
  backdrop-filter:blur(10px);
  font-size:0.8rem;color:var(--accent-emerald);
  font-family:var(--font-mono);
}
.scene-text h2{
  font-family:var(--font-display);
  font-size:1.8rem;font-weight:700;
  margin-bottom:16px;
  letter-spacing:1px;
}
.scene-text h2 span{
  background:linear-gradient(135deg,var(--accent-emerald),var(--accent-blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.scene-text .scene-desc{
  color:var(--text-secondary);line-height:1.8;
  margin-bottom:20px;
}
.scene-text .scene-value{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:8px;
  background:rgba(0,200,151,0.06);
  border:1px solid rgba(0,200,151,0.12);
  font-size:0.9rem;color:var(--accent-emerald);
  font-weight:600;
}

/* === Why Us === */
.why-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.why-card{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-md);
  padding:28px 22px;
  text-align:center;
  transition:all var(--transition);
}
.why-card:hover{
  border-color:rgba(240,192,96,0.2);
  transform:translateY(-3px);
}
.why-card .check-icon{
  font-size:1.5rem;margin-bottom:12px;
  color:var(--accent-emerald);
}
.why-card h3{font-size:1rem;margin-bottom:8px;font-weight:700}
.why-card p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}

/* === CTA Section === */
.cta-section{
  text-align:center;padding:80px 24px;
  background:var(--bg-surface);
  border:1px solid var(--border-card);
  border-radius:var(--radius-lg);
  margin:0 24px 80px;
  position:relative;z-index:1;
  overflow:hidden;
  max-width:var(--max-width);
  margin-left:auto;margin-right:auto;
}
.cta-section::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:100%;
  background:radial-gradient(ellipse at center, rgba(0,200,151,0.05) 0%, transparent 70%);
  z-index:0;
}
.cta-section>*{position:relative;z-index:1}
.cta-section h2{
  font-family:var(--font-display);
  font-size:1.8rem;font-weight:700;
  margin-bottom:12px;
  letter-spacing:1px;
}
.cta-section h2 span{
  background:linear-gradient(135deg,var(--accent-emerald),var(--accent-blue));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.cta-section p{color:var(--text-secondary);margin-bottom:28px}
.cta-contact{
  display:flex;justify-content:center;gap:16px;
  margin-bottom:24px;
  flex-wrap:wrap;
}
.cta-contact .contact-chip{
  display:flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:10px;
  background:var(--bg-card);
  border:1px solid var(--border-card);
  font-size:0.95rem;
}
.cta-contact .contact-chip .chip-icon{font-size:1.1rem}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* === Product Page Tabs === */
.tab-bar{
  display:flex;justify-content:center;gap:8px;
  margin-bottom:48px;position:relative;z-index:1;
}
.tab-btn{
  padding:12px 28px;border-radius:12px;
  font-size:0.95rem;font-weight:600;
  cursor:pointer;border:1px solid var(--border-card);
  background:var(--bg-card);
  color:var(--text-secondary);
  transition:all var(--transition);
  font-family:var(--font-body);
  text-align:center;
}
.tab-btn.active,
.tab-btn:hover{
  background:rgba(0,200,151,0.1);
  border-color:rgba(0,200,151,0.3);
  color:var(--accent-emerald);
}
.tab-content{display:none}
.tab-content.active{display:block}

/* === Product Detail Card === */
.prod-hero{
  text-align:center;margin-bottom:48px;
}
.prod-hero p{color:var(--text-secondary);max-width:600px;margin:0 auto}
.prod-card-big{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-lg);
  padding:36px 32px;
  margin-bottom:28px;
  transition:all var(--transition);
}
.prod-card-big:hover{
  border-color:rgba(0,200,151,0.2);
  box-shadow:var(--shadow-glow-emerald);
  transform:translateY(-2px);
}
.prod-card-big .prod-header{
  display:flex;justify-content:space-between;
  align-items:flex-start;margin-bottom:20px;
  flex-wrap:wrap;gap:12px;
}
.prod-card-big h3{font-size:1.25rem;font-weight:700}
.prod-card-big .prod-tagline{
  font-size:0.9rem;color:var(--text-secondary);
  font-style:italic;margin-bottom:16px;
}
.prod-card-big .prod-info{
  display:grid;grid-template-columns:1fr 1fr;
  gap:16px;margin-bottom:20px;
}
.prod-info-box{font-size:0.88rem;line-height:1.7}
.prod-info-box strong{color:var(--accent-emerald)}
.prod-card-big .prod-bottom{
  display:flex;justify-content:space-between;
  align-items:center;flex-wrap:wrap;gap:12px;
}
.prod-card-big .prod-contact{
  font-size:0.85rem;color:var(--text-muted);
}

/* === Service Flow === */
.flow-steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:20px;margin-bottom:60px;
}
.flow-step{
  text-align:center;position:relative;
}
.flow-step::after{
  content:'→';position:absolute;right:-18px;top:24px;
  font-size:1.5rem;color:var(--accent-emerald);
}
.flow-step:last-child::after{content:none}
.flow-step .step-num{
  width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent-emerald),var(--accent-blue));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);
  font-size:1.2rem;font-weight:700;
  color:#000;margin:0 auto 16px;
}
.flow-step h4{font-size:1rem;margin-bottom:8px;font-weight:700}
.flow-step p{font-size:0.85rem;color:var(--text-secondary);line-height:1.6}

/* === Promise Table === */
.promise-table{
  width:100%;border-collapse:collapse;
  background:var(--bg-card);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border-card);
}
.promise-table th,
.promise-table td{
  padding:14px 20px;text-align:left;
  font-size:0.9rem;
}
.promise-table th{
  background:rgba(0,200,151,0.08);
  color:var(--accent-emerald);
  font-weight:600;
}
.promise-table td{color:var(--text-secondary);border-bottom:1px solid var(--border-subtle)}
.promise-table tr:last-child td{border-bottom:none}

/* === FAQ Accordion === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:all var(--transition);
}
.faq-item:hover{
  border-color:rgba(0,200,151,0.15);
}
.faq-q{
  padding:18px 24px;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;
  font-weight:600;font-size:0.95rem;
  user-select:none;
}
.faq-q::after{
  content:'+';font-size:1.3rem;
  color:var(--accent-emerald);
  transition:transform var(--transition);
}
.faq-item.open .faq-q::after{
  content:'−';transform:rotate(180deg);
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 0.4s ease,padding 0.4s ease;
  padding:0 24px;
  font-size:0.9rem;color:var(--text-secondary);line-height:1.8;
}
.faq-item.open .faq-a{
  max-height:300px;padding:0 24px 20px;
}

/* === Contact Form === */
.contact-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact-info-cards{display:flex;flex-direction:column;gap:16px}
.info-card{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-md);
  padding:24px;
  transition:all var(--transition);
}
.info-card:hover{border-color:rgba(0,200,151,0.15)}
.info-card .ic-icon{font-size:1.5rem;margin-bottom:8px}
.info-card h4{font-size:0.95rem;margin-bottom:4px}
.info-card p{font-size:0.88rem;color:var(--text-secondary)}
.contact-form{
  background:var(--bg-card);
  border:1px solid var(--border-card);
  border-radius:var(--radius-lg);
  padding:32px;
}
.contact-form h3{font-size:1.2rem;margin-bottom:20px}
.form-group{margin-bottom:16px}
.form-group label{
  display:block;font-size:0.85rem;
  font-weight:600;margin-bottom:6px;
  color:var(--text-secondary);
}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;padding:12px 16px;
  border-radius:10px;
  background:var(--bg-deep);
  border:1px solid var(--border-card);
  color:var(--text-primary);
  font-family:var(--font-body);
  font-size:0.9rem;
  transition:border-color var(--transition);
  outline:none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:var(--accent-emerald);
}
.form-group textarea{resize:vertical;min-height:100px}
.form-submit{
  width:100%;padding:14px;
  border-radius:12px;border:none;
  background:linear-gradient(135deg,var(--accent-emerald),#00a87a);
  color:#000;font-size:1rem;font-weight:600;
  cursor:pointer;font-family:var(--font-body);
  transition:all var(--transition);
}
.form-submit:hover{
  box-shadow:0 4px 20px var(--accent-emerald-glow);
  transform:translateY(-1px);
}

/* === Quick Nav Grid === */
.quick-nav-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:12px;max-width:600px;margin:0 auto;
}
.quick-nav-card{
  display:flex;align-items:center;gap:10px;
  padding:14px 20px;border-radius:10px;
  background:var(--bg-card);
  border:1px solid var(--border-card);
  font-size:0.9rem;font-weight:500;
  transition:all var(--transition);
}
.quick-nav-card:hover{
  border-color:rgba(0,200,151,0.2);
  transform:translateX(4px);
}
.quick-nav-card .qn-icon{font-size:1.2rem}

/* === Response Time Table === */
.time-table{
  width:100%;border-collapse:collapse;
  background:var(--bg-card);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border-card);
  margin-bottom:40px;
}
.time-table th,
.time-table td{
  padding:14px 20px;text-align:left;
  font-size:0.9rem;
}
.time-table th{
  background:rgba(91,141,239,0.08);
  color:var(--accent-blue);
  font-weight:600;
}
.time-table td{color:var(--text-secondary);border-bottom:1px solid var(--border-subtle)}
.time-table tr:last-child td{border-bottom:none}

/* === Company Info Table === */
.info-table{
  width:100%;border-collapse:collapse;
  background:var(--bg-card);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--border-card);
}
.info-table th,
.info-table td{
  padding:14px 20px;text-align:left;
  font-size:0.9rem;
}
.info-table th{
  background:rgba(0,200,151,0.08);
  color:var(--accent-emerald);
  font-weight:600;
}
.info-table td{color:var(--text-secondary);border-bottom:1px solid var(--border-subtle)}
.info-table tr:last-child td{border-bottom:none}

/* === Footer === */
.site-footer{
  background:var(--bg-card);
  border-top:1px solid var(--border-subtle);
  padding:48px 24px 32px;
  position:relative;z-index:1;
}
.footer-inner{max-width:var(--max-width);margin:0 auto}
.footer-nav{
  display:flex;justify-content:center;gap:24px;
  margin-bottom:24px;flex-wrap:wrap;
}
.footer-nav a{
  font-size:0.9rem;color:var(--text-secondary);
  transition:color var(--transition);
}
.footer-nav a:hover{color:var(--accent-emerald)}
.footer-contact{
  text-align:center;margin-bottom:20px;
  font-size:0.88rem;color:var(--text-muted);
  line-height:1.8;
}
.footer-contact .fc-tel{margin:0 12px}
.footer-bottom{
  text-align:center;font-size:0.82rem;
  color:var(--text-muted);
  padding-top:20px;border-top:1px solid var(--border-subtle);
  line-height:1.8;
}

/* === Footer Friendly Links === */
.footer-friends{
  margin-top:36px;padding-top:28px;
  border-top:1px solid var(--border-subtle);
}
.footer-friends h4{
  color:var(--text-primary);font-size:0.95rem;
  font-weight:600;margin-bottom:14px;
}
.friends-cloud{
  display:flex;flex-wrap:wrap;gap:8px;
}
.friends-cloud a{
  display:inline-block;padding:5px 14px;
  font-size:0.8rem;color:var(--text-muted);
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:50px;
  transition:all var(--transition);
  line-height:1.5;white-space:nowrap;
}
.friends-cloud a:hover{
  color:var(--accent-emerald);
  background:rgba(0,200,151,0.08);
  border-color:rgba(0,200,151,0.2);
}
@media(max-width:768px){
  .friends-cloud{gap:6px}
  .friends-cloud a{padding:6px 12px;font-size:0.78rem}
}

/* === Responsive === */
@media (max-width:1024px){
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .flow-steps{grid-template-columns:repeat(2,1fr)}
  .flow-step:nth-child(2)::after{content:none}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .scene-block{grid-template-columns:1fr;gap:32px}
  .scene-visual{height:240px}
  .contact-form-grid{grid-template-columns:1fr}
  .hero h1{font-size:2.4rem}
}

@media (max-width:768px){
  :root{--nav-height:64px}
  .nav-links{
    position:fixed;top:0;right:-100%;
    width:70%;max-width:300px;height:100vh;
    background:rgba(16,24,39,0.98);
    backdrop-filter:blur(30px);
    flex-direction:column;padding:100px 32px 40px;
    gap:8px;transition:right var(--transition);
    z-index:999;
  }
  .nav-links.open{right:0}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .hero h1{font-size:2rem}
  .hero .hero-desc{font-size:1rem}
  .hero-btns{flex-direction:column}
  .value-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:1fr}
  .flow-step::after{content:none}
  .why-grid{grid-template-columns:1fr}
  .page-header h1{font-size:1.8rem}
  .prod-card-big .prod-info{grid-template-columns:1fr}
  .prod-card-big .prod-header{flex-direction:column}
  .tab-bar{flex-direction:column;align-items:center}
  .tab-btn{width:100%;max-width:340px}
  .section{padding:48px 16px}
  .page-header{padding:calc(var(--nav-height) + 40px) 16px 24px}
  .cta-section{margin:0 16px 48px;padding:48px 20px}
  .site-footer{padding:36px 16px 24px}
  .quick-nav-grid{grid-template-columns:1fr}
  .promise-table,.time-table,.info-table{display:block;overflow-x:auto}
  .promise-table th,.promise-table td,
  .time-table th,.time-table td,
  .info-table th,.info-table td{white-space:nowrap;padding:10px 14px;font-size:0.82rem}
}

  .info-two-col{grid-template-columns:1fr !important}
  .cta-contact{flex-direction:column;align-items:center}
  .cta-btns{flex-direction:column;align-items:center}
@media(max-width:480px){
  .hero h1{font-size:1.6rem}
  .cta-section h2{font-size:1.4rem}
  .section-title h2{font-size:1.5rem}
  .page-header h1{font-size:1.6rem}
}

/* Nav overlay for mobile */
.nav-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:998}
.nav-overlay.show{display:block}
@media(min-width:769px){.nav-overlay{display:none !important}}

/* === Animation === */
.fade-up{
  opacity:0;transform:translateY(30px);
  transition:opacity 0.6s ease,transform 0.6s ease;
}
.fade-up.visible{opacity:1;transform:translateY(0)}

@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}