/* ============================================
   LINX VALLEY - 上海灵娃智能科技有限公司
   Design System v4.0 | Tech-Glass Industrial
   科技感 + 立体感 + 层次感
   ============================================ */

:root {
  /* Surfaces */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  
  /* Accent — Tech Blue system */
  --blue-500: #2563eb;
  --blue-400: #3b82f6;
  --blue-300: #60a5fa;
  --blue-600: #1d4ed8;
  --cyan-500: #06b6d4;
  --purple-500: #6366f1;
  --purple-600: #4f46e5;
  --teal-500: #14b8a6;
  --amber-600: #d97706;
  --red-600: #dc2626;
  --emerald-500: #10b981;
  --rose-500: #f43f5e;
  --indigo-500: #4f46e5;
  
  /* Gradients */
  --grad-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
  --grad-purple: linear-gradient(135deg, #6366f1 0%, #2563eb 100%);
  --grad-teal: linear-gradient(135deg, #14b8a6 0%, #06b6d4 100%);
  --grad-warm: linear-gradient(135deg, #f59e0b 0%, #dc2626 100%);
  
  /* Text */
  --text-h: #0f172a;
  --text-body: #334155;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  /* Borders */
  --border-light: #e2e8f0;
  --border-default: #cbd5e1;
  --border-focus: rgba(37,99,235,0.35);
  
  /* Shadows — 4-level depth system */
  --shadow-xs: 0 1px 2px rgba(15,23,42,0.04);
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.06), 0 1px 2px rgba(15,23,42,0.04);
  --shadow-md: 0 4px 6px rgba(15,23,42,0.04), 0 2px 16px rgba(15,23,42,0.06);
  --shadow-lg: 0 10px 25px rgba(15,23,42,0.06), 0 4px 10px rgba(15,23,42,0.04);
  --shadow-xl: 0 20px 50px rgba(15,23,42,0.08), 0 8px 24px rgba(15,23,42,0.04);
  --shadow-glow: 0 0 40px rgba(37,99,235,0.12);
  
  /* Glass */
  --glass-bg: rgba(255,255,255,0.72);
  --glass-border: rgba(255,255,255,0.6);
  --glass-blur: blur(20px);
  
  /* Layout */
  --max-width: 1200px;
  --header-h: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --font: "Inter", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family:var(--font); background:var(--bg-page); color:var(--text-body);
  line-height:1.65; -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
ul, ol { list-style:none; }

.container { max-width:var(--max-width); margin:0 auto; padding:0 28px; }
section { padding:96px 0; position:relative; }

/* ========================================
   SECTION ALTERNATION — 层次感核心
   ======================================== */
.sect-light { background:var(--bg-page); }
.sect-white { background:var(--bg-surface); }
.sect-subtle { background:var(--bg-subtle); }

/* ========================================
   TYPOGRAPHY
   ======================================== */
.section-tag {
  display:inline-flex; align-items:center; gap:6px;
  font-size:0.78rem; font-weight:600; letter-spacing:0.08em;
  text-transform:uppercase; color:var(--blue-500); margin-bottom:16px;
  padding:5px 14px; border-radius:20px;
  background:rgba(37,99,235,0.06); border:1px solid rgba(37,99,235,0.15);
}
.section-tag::before {
  content:''; width:6px; height:6px; border-radius:50%;
  background:var(--cyan-500); animation:dot-pulse 2.5s infinite;
}
@keyframes dot-pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(.8)} }

.section-title {
  font-size:2.25rem; font-weight:800; color:var(--text-h);
  margin-bottom:14px; letter-spacing:-0.025em; line-height:1.2;
}
.section-subtitle {
  font-size:1.05rem; color:var(--text-secondary); max-width:620px; margin-bottom:48px;
  line-height:1.7;
}
.text-center { text-align:center; }
.text-gradient {
  background:var(--grad-primary);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}

/* ========================================
   DECORATIVE ELEMENTS
   ======================================== */
.grid-bg {
  position:absolute; top:0; left:0; width:100%; height:100%;
  background-image:
    linear-gradient(rgba(37,99,235,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.03) 1px, transparent 1px);
  background-size:60px 60px; pointer-events:none; z-index:0;
}

.glow-orb {
  position:absolute; border-radius:50%; filter:blur(100px);
  pointer-events:none; z-index:0; opacity:0.15;
}
.glow-orb.blue { background:var(--blue-500); }
.glow-orb.purple { background:var(--purple-500); }
.glow-orb.cyan { background:var(--cyan-500); }

/* ========================================
   HEADER — Glass morphism
   ======================================== */
.header {
  position:fixed; top:0; left:0; width:100%; height:var(--header-h);
  background:var(--glass-bg); backdrop-filter:var(--glass-blur);
  -webkit-backdrop-filter:var(--glass-blur);
  border-bottom:1px solid var(--border-light); z-index:1000;
  transition:all .35s var(--ease);
}
.header.scrolled {
  background:rgba(255,255,255,0.92);
  box-shadow:0 1px 3px rgba(15,23,42,0.04), 0 4px 20px rgba(15,23,42,0.06);
  border-bottom-color:transparent;
}
.nav {
  max-width:var(--max-width); margin:0 auto; padding:0 28px;
  height:100%; display:flex; align-items:center; justify-content:space-between;
}
.logo {
  display:flex; align-items:center; gap:10px; font-size:1.2rem;
  font-weight:700; color:var(--text-h);
}
.logo-icon {
  width:36px; height:36px; border-radius:10px;
  background:var(--grad-primary); display:flex;
  align-items:center; justify-content:center; font-size:1rem;
  color:#fff; font-weight:800; box-shadow:0 2px 8px rgba(37,99,235,0.3);
}
.logo-img {
  height:40px; width:auto; display:block;
}
.logo span { color:var(--blue-500); }

.nav-menu { display:flex; align-items:center; gap:32px; }
.nav-menu a {
  font-size:0.9rem; color:var(--text-secondary); font-weight:500;
  padding:6px 0; position:relative;
  transition:color .25s var(--ease);
}
.nav-menu a:hover, .nav-menu a.active { color:var(--blue-500); }
.nav-menu a.active::after {
  content:''; position:absolute; bottom:-4px; left:0; width:100%;
  height:2.5px; background:var(--grad-primary); border-radius:3px;
}

.nav-cta {
  padding:9px 22px; background:var(--grad-primary); color:#fff;
  border-radius:var(--radius-sm); font-size:0.88rem; font-weight:600;
  transition:all .3s var(--ease); box-shadow:0 2px 8px rgba(37,99,235,0.25);
}
.nav-cta:hover {
  transform:translateY(-1px);
  box-shadow:0 6px 24px rgba(37,99,235,0.35);
}

/* ========================================
   HERO
   ======================================== */
.hero {
  min-height:100vh; display:flex; align-items:center;
  padding-top:var(--header-h); overflow:hidden;
  background:linear-gradient(180deg, #f0f7ff 0%, #f8fafc 40%, #ffffff 100%);
}
.hero .container { position:relative; z-index:1; }
.hero-content { max-width:780px; position:relative; z-index:2; }

.hero-badge {
  display:inline-flex; align-items:center; gap:8px;
  padding:8px 20px; border-radius:24px;
  background:rgba(37,99,235,0.07); border:1px solid rgba(37,99,235,0.18);
  font-size:0.82rem; color:var(--blue-500); font-weight:600;
  margin-bottom:24px; letter-spacing:0.3px;
}
.hero-badge .dot {
  width:7px; height:7px; border-radius:50%;
  background:var(--cyan-500);
  animation:dot-pulse 2s infinite;
}

.hero h1 {
  font-size:3.4rem; font-weight:800; line-height:1.12;
  letter-spacing:-0.03em; margin-bottom:20px; color:var(--text-h);
}
.hero-desc {
  font-size:1.12rem; color:var(--text-secondary);
  line-height:1.75; margin-bottom:36px; max-width:600px;
}
.hero-actions { display:flex; gap:14px; flex-wrap:wrap; }
.hero-stats {
  display:flex; gap:56px; margin-top:56px; padding-top:36px;
  border-top:1px solid var(--border-light);
}
.hero-stat .num {
  font-size:2.4rem; font-weight:800; color:var(--text-h); line-height:1;
}
.hero-stat .unit { font-size:1rem; color:var(--blue-500); margin-left:2px; }
.hero-stat .label { font-size:0.84rem; color:var(--text-muted); margin-top:6px; }

/* ========================================
   PAGE BANNER
   ======================================== */
.page-banner {
  padding:120px 0 56px; position:relative; overflow:hidden; text-align:center;
  background:linear-gradient(180deg, #f0f7ff 0%, #f8fafc 100%);
}
.page-banner h1 { font-size:2.6rem; font-weight:800; color:var(--text-h); margin-bottom:12px; }
.page-banner p { font-size:1.08rem; color:var(--text-secondary); max-width:600px; margin:0 auto; }

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 28px; border-radius:var(--radius-sm); font-size:0.94rem;
  font-weight:600; cursor:pointer; transition:all .3s var(--ease);
  border:none; font-family:inherit; position:relative; overflow:hidden;
}
.btn-primary {
  background:var(--grad-primary); color:#fff;
  box-shadow:0 4px 16px rgba(37,99,235,0.25);
}
.btn-primary:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 30px rgba(37,99,235,0.35);
}
.btn-outline {
  background:var(--bg-surface); color:var(--text-body);
  border:1.5px solid var(--border-default);
  box-shadow:var(--shadow-sm);
}
.btn-outline:hover {
  border-color:var(--blue-400); color:var(--blue-500);
  background:rgba(37,99,235,0.04);
}
.btn-lg { padding:14px 36px; font-size:1rem; }

/* ========================================
   CARDS — Glass & Depth
   ======================================== */
.card-grid2 { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.card-grid3 { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.card-grid4 { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }

/* Business card — layered depth */
.biz-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:32px;
  box-shadow:var(--shadow-sm);
  transition:all .4s var(--ease); position:relative; overflow:hidden;
  display:flex; flex-direction:column; height:100%;
}
.biz-card::before {
  content:''; position:absolute; left:0; top:24px; bottom:24px; width:3px;
  border-radius:0 3px 3px 0; background:var(--blue-500); opacity:0.6;
  transition:opacity .3s var(--ease);
}
.biz-card::after {
  content:''; position:absolute; inset:0; border-radius:var(--radius-lg);
  background:linear-gradient(135deg, rgba(37,99,235,0.03) 0%, transparent 50%);
  opacity:0; transition:opacity .4s var(--ease);
}
.biz-card:hover {
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg), 0 0 0 1px rgba(37,99,235,0.08);
  border-color:rgba(37,99,235,0.2);
}
.biz-card.card-paas:hover { border-color:rgba(20,184,166,0.25); }
.biz-card.card-mom:hover { border-color:rgba(37,99,235,0.25); }
.biz-card.card-cto:hover { border-color:rgba(99,102,241,0.25); }
.biz-card.card-ai:hover { border-color:rgba(217,119,6,0.25); }
.biz-card.card-lims:hover { border-color:rgba(16,185,129,0.25); }
.biz-card.card-les:hover { border-color:rgba(245,158,11,0.25); }
.biz-card.card-shopfloor:hover { border-color:rgba(79,70,229,0.25); }
.biz-card.card-aps:hover { border-color:rgba(37,99,235,0.25); }
.biz-card:hover::before { opacity:1; width:4px; }
.biz-card.card-paas::before { background:var(--teal-500); }
.biz-card.card-mom::before { background:var(--blue-500); }
.biz-card.card-cto::before { background:var(--purple-500); }
.biz-card.card-ai::before { background:var(--amber-600); }
.biz-card.card-lims::before { background:var(--emerald-500); }
.biz-card.card-les::before { background:var(--amber-600); }
.biz-card.card-shopfloor::before { background:var(--indigo-500); }
.biz-card.card-aps::before { background:var(--blue-600); }
.biz-card:hover::after { opacity:1; }

.biz-card .card-icon {
  width:42px; height:42px; border-radius:12px; display:flex;
  align-items:center; justify-content:center; font-size:1.3rem;
  margin-bottom:20px; background:rgba(37,99,235,0.06);
  border:1px solid rgba(37,99,235,0.12);
}
.biz-card.card-paas .card-icon { background:rgba(20,184,166,0.06); border-color:rgba(20,184,166,0.15); }
.biz-card.card-cto .card-icon { background:rgba(99,102,241,0.06); border-color:rgba(99,102,241,0.15); }
.biz-card.card-ai .card-icon { background:rgba(217,119,6,0.06); border-color:rgba(217,119,6,0.15); }
.biz-card.card-lims .card-icon { background:rgba(16,185,129,0.06); border-color:rgba(16,185,129,0.15); }
.biz-card.card-les .card-icon { background:rgba(245,158,11,0.06); border-color:rgba(245,158,11,0.15); }
.biz-card.card-shopfloor .card-icon { background:rgba(79,70,229,0.06); border-color:rgba(79,70,229,0.15); }
.biz-card.card-aps .card-icon { background:rgba(37,99,235,0.06); border-color:rgba(37,99,235,0.15); }
.biz-card .card-tag {
  position:absolute; top:20px; right:20px; font-size:0.7rem; font-weight:600;
  padding:3px 10px; border-radius:12px;
}
.biz-card .card-tag.new {
  background:rgba(99,102,241,0.08); color:var(--purple-600);
  border:1px solid rgba(99,102,241,0.18);
}
.biz-card .card-tag.hot {
  background:rgba(245,158,11,0.08); color:var(--amber-600);
  border:1px solid rgba(245,158,11,0.18);
}
.biz-card .card-title { font-size:1.18rem; font-weight:700; color:var(--text-h); margin-bottom:8px; line-height:1.4; text-align:center; }
.biz-card .card-head { display:flex; align-items:flex-start; gap:10px; margin-bottom:14px; flex-wrap:wrap; min-height:60px; }
.biz-card .card-head .card-icon { margin-bottom:0; flex-shrink:0; margin-top:0; }
.biz-card .card-head .card-badge { padding-top:9px; line-height:1.3; }
.biz-card .card-badge { font-size:1.05rem; font-weight:800; color:var(--blue-500); letter-spacing:0.5px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:calc(100% - 52px); }
.biz-card .card-badge-long { white-space:normal; text-overflow:clip; max-width:100%; line-height:1.3; font-size:0.98rem }
.biz-card.card-paas .card-badge { color:var(--teal-500); }
.biz-card.card-cto .card-badge { color:var(--purple-500); }
.biz-card.card-ai .card-badge { color:var(--amber-600); }
.biz-card.card-lims .card-badge { color:var(--emerald-500); }
.biz-card.card-les .card-badge { color:var(--amber-600); }
.biz-card.card-shopfloor .card-badge { color:var(--indigo-500); }
.biz-card.card-aps .card-badge { color:var(--blue-600); }
.biz-card .card-desc { font-size:0.9rem; color:var(--text-secondary); line-height:1.65; margin-bottom:16px; flex:1; text-align:center; }
.biz-card .card-features { display:flex; flex-wrap:wrap; gap:6px; margin-top:auto; justify-content:center; }
.biz-card .card-features li {
  font-size:0.77rem; color:var(--text-muted); padding:4px 12px;
  border-radius:20px; background:rgba(37,99,235,0.06); border:1px solid rgba(37,99,235,0.12);
  white-space:nowrap; transition:all .2s var(--ease);
}
.biz-card:hover .card-features li {
  background:rgba(37,99,235,0.1); border-color:rgba(37,99,235,0.2);
}
.biz-card.card-paas:hover .card-features li { background:rgba(20,184,166,0.1); border-color:rgba(20,184,166,0.2); }
.biz-card.card-cto:hover .card-features li { background:rgba(99,102,241,0.1); border-color:rgba(99,102,241,0.2); }
.biz-card.card-ai:hover .card-features li { background:rgba(217,119,6,0.1); border-color:rgba(217,119,6,0.2); }
.biz-card.card-lims:hover .card-features li { background:rgba(16,185,129,0.1); border-color:rgba(16,185,129,0.2); }
.biz-card.card-les:hover .card-features li { background:rgba(245,158,11,0.1); border-color:rgba(245,158,11,0.2); }
.biz-card.card-shopfloor:hover .card-features li { background:rgba(79,70,229,0.1); border-color:rgba(79,70,229,0.2); }
.biz-card.card-aps:hover .card-features li { background:rgba(37,99,235,0.1); border-color:rgba(37,99,235,0.2); }

/* ========================================
   HOME PRODUCT CARDS — Glass depth
   ======================================== */
.hero-products {
  display:grid; grid-template-columns:repeat(4,1fr); gap:22px;
  padding:60px 0 80px; position:relative; z-index:1;
}
.hp-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:36px 28px;
  box-shadow:var(--shadow-sm);
  transition:all .4s var(--ease); position:relative; overflow:hidden;
  display:flex; flex-direction:column;
}
.hp-card::before {
  content:''; position:absolute; top:0; left:0; width:100%; height:3px;
  opacity:0; transition:opacity .4s var(--ease);
}
.hp-card:hover {
  transform:translateY(-8px);
  box-shadow:var(--shadow-xl);
  border-color:transparent;
}
.hp-card:hover::before { opacity:1; }
.hp-card.mom::before { background:var(--grad-primary); }
.hp-card.camera::before { background:var(--grad-warm); }
.hp-card.welding::before { background:var(--grad-teal); }
.hp-card.askdata::before { background:var(--grad-purple); }

/* Glass highlight on hover */
.hp-card::after {
  content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%;
  background:radial-gradient(circle at 30% 20%, rgba(37,99,235,0.04) 0%, transparent 60%);
  opacity:0; transition:opacity .5s var(--ease); pointer-events:none;
}
.hp-card:hover::after { opacity:1; }

.hp-icon {
  width:56px; height:56px; border-radius:14px; display:flex;
  align-items:center; justify-content:center; font-size:1.6rem;
  margin-bottom:20px; flex-shrink:0;
}
.mom .hp-icon { background:rgba(37,99,235,0.06); border:1px solid rgba(37,99,235,0.12); }
.camera .hp-icon { background:rgba(245,158,11,0.06); border:1px solid rgba(245,158,11,0.12); }
.welding .hp-icon { background:rgba(20,184,166,0.06); border:1px solid rgba(20,184,166,0.12); }
.askdata .hp-icon { background:rgba(99,102,241,0.06); border:1px solid rgba(99,102,241,0.12); }

.hp-badge {
  position:absolute; top:16px; font-size:0.68rem; font-weight:700;
  padding:3px 10px; border-radius:10px; letter-spacing:0.04em;
  z-index:1;
}
.hp-badge.hw {
  right:16px;
  background:rgba(245,158,11,0.08); color:var(--amber-600);
  border:1px solid rgba(245,158,11,0.18);
}
.hp-badge.cat {
  left:16px;
  background:rgba(37,99,235,0.06); color:var(--blue-500);
  border:1px solid rgba(37,99,235,0.12);
}

.hp-card .hp-subtitle {
  font-size:0.78rem; font-weight:600; letter-spacing:0.04em;
  text-transform:uppercase; margin-bottom:8px;
}
.mom .hp-subtitle { color:var(--blue-500); }
.camera .hp-subtitle { color:var(--amber-600); }
.welding .hp-subtitle { color:var(--teal-500); }
.askdata .hp-subtitle { color:var(--purple-600); }

.hp-card .hp-title { font-size:1.2rem; font-weight:700; color:var(--text-h); margin-bottom:10px; line-height:1.3; }
.hp-card .hp-desc { font-size:0.85rem; color:var(--text-secondary); line-height:1.65; margin-bottom:16px; flex:1; }
.hp-card .hp-features { display:flex; flex-wrap:wrap; gap:6px; }
.hp-card .hp-features li {
  font-size:0.74rem; color:var(--text-muted); padding:3px 9px;
  border-radius:4px; background:rgba(148,163,184,0.04); border:1px solid var(--border-light);
}
.hp-card .hp-link {
  display:inline-flex; align-items:center; gap:4px; margin-top:16px;
  font-size:0.84rem; font-weight:600; transition:all .3s var(--ease);
}
.mom .hp-link { color:var(--blue-500); }
.camera .hp-link { color:var(--amber-600); }
.welding .hp-link { color:var(--teal-500); }
.askdata .hp-link { color:var(--purple-600); }
.hp-link:hover { gap:10px; }

/* ========================================
   3-TIER ARCH BLOCKS — Glass cards
   ======================================== */
.tier-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
  margin-bottom:48px;
}
.tier-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:32px 24px; text-align:center;
  box-shadow:var(--shadow-sm);
  transition:all .4s var(--ease); position:relative; overflow:hidden;
}
.tier-card::before {
  content:''; position:absolute; top:0; left:0; width:100%; height:3px;
}
.tier-card.t-paas::before { background:var(--grad-teal); }
.tier-card.t-mom::before { background:var(--grad-primary); }
.tier-card.t-ai::before { background:var(--grad-purple); }
.tier-card:hover {
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
}
.tier-card .tier-name { font-size:1.3rem; font-weight:700; margin-bottom:4px; }
.tier-card.t-paas .tier-name { color:var(--cyan-500); }
.tier-card.t-mom .tier-name { color:var(--blue-400); }
.tier-card.t-ai .tier-name { color:var(--purple-600); }
.tier-card .tier-label { font-size:0.8rem; color:var(--text-muted); }
.tier-card .tier-desc { font-size:0.78rem; color:var(--text-secondary); margin-top:10px; line-height:1.5; }

/* ========================================
   STATS BAR — Elevated
   ======================================== */
.stats-bar {
  display:grid; grid-template-columns:repeat(4,1fr); gap:32px;
  padding:48px; background:var(--bg-surface); border-radius:var(--radius-lg);
  border:1px solid var(--border-light); text-align:center;
  box-shadow:var(--shadow-md);
}
.stat-item .stat-num {
  font-size:2.8rem; font-weight:800;
  background:var(--grad-primary);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text; line-height:1;
}
.stat-item .stat-num .unit { font-size:1.2rem; }
.stat-item .stat-label { font-size:0.86rem; color:var(--text-secondary); margin-top:8px; }

/* ========================================
   PRODUCT DETAIL — Layered cards
   ======================================== */
.product-detail {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-xl); padding:48px; margin-bottom:40px;
  box-shadow:var(--shadow-sm); position:relative; overflow:hidden;
}
.product-detail::after {
  content:''; position:absolute; top:-30%; right:-30%; width:300px; height:300px;
  border-radius:50%; filter:blur(80px); opacity:0.04; pointer-events:none;
}
.ai-product.product-detail::after { background:var(--purple-500); }

.product-detail .prod-header { display:flex; gap:32px; align-items:flex-start; margin-bottom:32px; flex-wrap:wrap; }
.product-detail .prod-icon {
  width:80px; height:80px; border-radius:16px;
  background:rgba(37,99,235,0.05); border:1px solid rgba(37,99,235,0.1);
  display:flex; align-items:center; justify-content:center; font-size:2.2rem;
  flex-shrink:0;
}
.ai-product .prod-icon { background:rgba(99,102,241,0.05); border-color:rgba(99,102,241,0.1); }

.product-detail .prod-info h2 { font-size:1.55rem; font-weight:700; color:var(--text-h); margin-bottom:8px; }
.product-detail .prod-info .prod-subtitle { font-size:1rem; color:var(--blue-500); margin-bottom:8px; font-weight:500; }
.product-detail .prod-info .prod-desc { font-size:0.93rem; color:var(--text-secondary); line-height:1.7; }

.product-detail .prod-features { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:32px; }
.product-detail .prod-feature {
  padding:20px; background:var(--bg-subtle); border-radius:var(--radius-md);
  border:1px solid var(--border-light); transition:all .3s var(--ease);
}
.product-detail .prod-feature:hover {
  border-color:var(--border-default);
  background:var(--bg-surface);
  box-shadow:var(--shadow-sm);
}
.product-detail .prod-feature .feat-title { font-size:0.92rem; font-weight:600; color:var(--text-h); margin-bottom:6px; }
.product-detail .prod-feature .feat-desc { font-size:0.84rem; color:var(--text-secondary); line-height:1.6; }

/* Image galleries */
.prod-img-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
.prod-img-grid.three-col { grid-template-columns:repeat(3,1fr); }
.prod-img-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:all .3s var(--ease);
  display:flex; flex-direction:column; height:100%;
}
.prod-img-card:hover {
  transform:translateY(-3px);
  box-shadow:var(--shadow-md);
}
.prod-img-card img { width:100%; height:320px; object-fit:cover; border-bottom:1px solid var(--border-light); flex-shrink:0; }
.prod-img-caption { padding:14px 16px; font-size:0.81rem; color:var(--text-secondary); text-align:center; line-height:1.5; }

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section { padding:80px 0; }
.cta-box {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-xl); padding:64px 48px; text-align:center;
  position:relative; overflow:hidden;
  box-shadow:var(--shadow-md);
}
.cta-box::before {
  content:''; position:absolute; top:0; left:0; width:100%; height:3px;
  background:var(--grad-primary);
}
.cta-box h2 { font-size:2rem; font-weight:700; color:var(--text-h); margin-bottom:16px; }
.cta-box p { font-size:1.05rem; color:var(--text-secondary); margin-bottom:32px; max-width:520px; margin-left:auto; margin-right:auto; }

/* ========================================
   CASE CARDS
   ======================================== */
.cases-list { display:flex; flex-direction:column; gap:24px; }
.case-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:40px 44px;
  box-shadow:var(--shadow-sm); transition:all .4s var(--ease);
}
.case-card:hover {
  border-color:rgba(37,99,235,0.15);
  box-shadow:var(--shadow-md);
  transform:translateY(-3px);
}
.case-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:18px; flex-wrap:wrap; gap:12px; }
.case-client { font-size:1.08rem; font-weight:700; color:var(--text-h); }
.case-industry {
  display:inline-block; font-size:0.75rem; font-weight:600; color:var(--blue-500);
  padding:4px 12px; border-radius:12px; background:rgba(37,99,235,0.06);
  border:1px solid rgba(37,99,235,0.12); white-space:nowrap;
}
.case-title { font-size:1.18rem; font-weight:700; color:var(--text-h); margin-bottom:14px; line-height:1.4; }
.case-desc { font-size:0.93rem; color:var(--text-secondary); line-height:1.8; margin-bottom:20px; }
.case-tags { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:24px; }
.case-tags span {
  font-size:0.75rem; color:var(--text-muted); padding:4px 12px;
  border-radius:6px; background:rgba(148,163,184,0.04); border:1px solid var(--border-light);
}
.case-metrics { display:flex; gap:48px; padding-top:24px; border-top:1px solid var(--border-light); align-items:flex-end; }
.case-metric .metric-num { font-size:1.7rem; font-weight:800; color:var(--blue-500); line-height:1.1; white-space:nowrap; }
.case-metric .metric-unit { font-size:0.85rem; font-weight:600; color:var(--cyan-500); }
.case-metric .metric-label { font-size:0.8rem; color:var(--text-muted); margin-top:4px; white-space:nowrap; }

/* Tag grid system */
.tag-row { display:grid; grid-template-columns:repeat(5,1fr); gap:8px; margin-top:12px; }
.tpl-tag {
  font-size:0.78rem; padding:7px 14px; border-radius:6px;
  background:rgba(37,99,235,0.04); border:1px solid rgba(37,99,235,0.1);
  color:var(--blue-500); font-weight:500; text-align:center;
  transition:all .3s var(--ease);
}
.tpl-tag:hover { background:rgba(37,99,235,0.08); border-color:rgba(37,99,235,0.2); }

.platform-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:40px; margin-bottom:32px;
  box-shadow:var(--shadow-sm);
}

/* ========================================
   CLIENT LOGOS — Glass grid
   ======================================== */
.logo-wall-section { padding:80px 0; background:var(--bg-subtle); }
.logo-wall-header { text-align:center; margin-bottom:48px; }
.logo-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:20px; }
.logo-item {
  background:var(--bg-surface); border-radius:var(--radius-md);
  padding:28px 18px; display:flex; align-items:center; justify-content:center;
  height:120px; transition:all .35s var(--ease);
  border:1px solid var(--border-light);
  box-shadow:var(--shadow-xs);
}
.logo-item:hover {
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:rgba(37,99,235,0.2);
}
.logo-item img { max-width:100%; max-height:72px; object-fit:contain; filter:saturate(0.85); transition:filter .35s var(--ease); }
.logo-item:hover img { filter:saturate(1); }

.logo-group { margin-bottom:40px; }
.logo-group-title {
  font-size:0.84rem; font-weight:600; color:var(--text-muted);
  margin-bottom:16px; display:flex; align-items:center; gap:8px;
}
.logo-group-title::before {
  content:''; display:inline-block; width:4px; height:16px;
  border-radius:2px; background:var(--grad-primary);
}

/* Client cards */
.client-logos {
  display:grid; grid-template-columns:repeat(auto-fill,minmax(180px,1fr)); gap:20px;
  margin-top:40px;
}
.cl-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:32px 20px; text-align:center;
  box-shadow:var(--shadow-sm); transition:all .35s var(--ease);
  display:flex; flex-direction:column; align-items:center; gap:12px;
}
.cl-card:hover {
  transform:translateY(-5px);
  box-shadow:var(--shadow-lg);
}
.cl-card .cl-icon {
  width:64px; height:64px; border-radius:16px; display:flex;
  align-items:center; justify-content:center; font-size:2rem; margin-bottom:4px;
}
.cl-card.elec .cl-icon { background:rgba(16,185,129,0.06); border:1px solid rgba(16,185,129,0.12); }
.cl-card.manu .cl-icon { background:rgba(37,99,235,0.06); border:1px solid rgba(37,99,235,0.12); }
.cl-card.bear .cl-icon { background:rgba(6,182,212,0.06); border:1px solid rgba(6,182,212,0.12); }
.cl-card.group .cl-icon { background:rgba(245,158,11,0.06); border:1px solid rgba(245,158,11,0.12); }
.cl-card.mil .cl-icon { background:rgba(99,102,241,0.06); border:1px solid rgba(99,102,241,0.12); }
.cl-card .cl-name { font-size:0.9rem; font-weight:700; color:var(--text-h); }
.cl-card .cl-tag { font-size:0.72rem; color:var(--text-muted); padding:3px 10px; border-radius:10px; background:rgba(148,163,184,0.04); border:1px solid var(--border-light); }
.cl-card .cl-desc { font-size:0.78rem; color:var(--text-muted); line-height:1.5; }

/* ========================================
   NEWS
   ======================================== */
.news-card {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:28px;
  box-shadow:var(--shadow-sm); transition:all .3s var(--ease);
  display:flex; gap:20px; align-items:flex-start;
}
.news-card:hover {
  border-color:rgba(37,99,235,0.15);
  box-shadow:var(--shadow-md);
}
.news-card .news-date { width:56px; text-align:center; flex-shrink:0; }
.news-card .news-date .day { font-size:1.6rem; font-weight:800; color:var(--blue-500); line-height:1; }
.news-card .news-date .month { font-size:0.78rem; color:var(--text-muted); margin-top:4px; }
.news-card .news-content { flex:1; }
.news-card .news-title { font-size:1.05rem; font-weight:600; color:var(--text-h); margin-bottom:6px; }
.news-card .news-desc { font-size:0.9rem; color:var(--text-secondary); line-height:1.6; }
.news-card .news-image { flex-shrink:0; width:200px; }
.news-card .news-image img { width:100%; height:130px; object-fit:cover; border-radius:8px; border:1px solid var(--border-light); }
.news-card .news-video { flex-shrink:0; width:200px; }
.news-card .news-video video { width:100%; height:130px; object-fit:cover; border-radius:8px; border:1px solid var(--border-light); background:#000; }
.news-card.news-card-has-image { flex-wrap:wrap; }
.news-card.news-card-has-image .news-content { min-width:260px; flex:1; }
@media (max-width:600px) {
  .news-card .news-image { width:100%; }
  .news-card .news-image img { height:auto; max-height:180px; }
  .news-card .news-video { width:100%; }
  .news-card .news-video video { height:auto; max-height:200px; }
}

/* ========================================
   CONTACT
   ======================================== */
.contact-layout { display:grid; grid-template-columns:1fr 1fr; gap:48px; }
.contact-info h2 { font-size:1.8rem; font-weight:700; color:var(--text-h); margin-bottom:12px; }
.contact-info p { color:var(--text-secondary); margin-bottom:32px; line-height:1.7; }
.contact-item { display:flex; gap:14px; align-items:flex-start; margin-bottom:24px; }
.contact-item .ci-icon {
  width:44px; height:44px; border-radius:10px;
  background:rgba(37,99,235,0.05); border:1px solid rgba(37,99,235,0.1);
  display:flex; align-items:center; justify-content:center; font-size:1.1rem; flex-shrink:0;
}
.contact-item .ci-label { font-size:0.8rem; color:var(--text-muted); margin-bottom:2px; }
.contact-item .ci-value { font-size:0.95rem; color:var(--text-body); font-weight:500; }

.contact-form {
  background:var(--bg-surface); border:1px solid var(--border-light);
  border-radius:var(--radius-lg); padding:40px;
  box-shadow:var(--shadow-md);
}
.form-group { margin-bottom:20px; }
.form-group label { display:block; font-size:0.88rem; font-weight:500; color:var(--text-secondary); margin-bottom:8px; }
.form-group input, .form-group textarea, .form-group select {
  width:100%; padding:12px 16px; background:var(--bg-subtle);
  border:1.5px solid var(--border-default); border-radius:var(--radius-md);
  color:var(--text-body); font-size:0.94rem; font-family:inherit;
  transition:all .25s var(--ease); outline:none;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color:var(--blue-400);
  box-shadow:0 0 0 3px rgba(37,99,235,0.08);
}
.form-group textarea { min-height:120px; resize:vertical; }

/* ========================================
   COMPARISON TABLE
   ======================================== */
.compare-table { width:100%; border-collapse:separate; border-spacing:0; border:1px solid var(--border-light); border-radius:var(--radius-lg); overflow:hidden; }
.compare-table thead th { background:var(--bg-subtle); padding:16px 20px; font-size:0.9rem; font-weight:600; color:var(--text-h); text-align:left; border-bottom:1px solid var(--border-default); }
.compare-table tbody td { padding:14px 20px; font-size:0.9rem; color:var(--text-secondary); border-bottom:1px solid var(--border-light); }
.compare-table tbody tr:last-child td { border-bottom:none; }
.compare-table tbody tr:hover td { background:rgba(37,99,235,0.02); }

/* ========================================
   FOOTER
   ======================================== */
.footer { background:var(--bg-surface); border-top:1px solid var(--border-light); padding:60px 0 30px; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; margin-bottom:40px; }
.footer-brand .logo { margin-bottom:12px; }
.footer-brand p { font-size:0.9rem; color:var(--text-secondary); line-height:1.7; }
.footer-col h4 { font-size:0.95rem; font-weight:600; color:var(--text-h); margin-bottom:16px; }
.footer-col a { display:block; font-size:0.88rem; color:var(--text-secondary); padding:4px 0; transition:color .2s var(--ease); }
.footer-col a:hover { color:var(--blue-500); }
.footer-bottom { padding-top:24px; border-top:1px solid var(--border-light); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:0.82rem; color:var(--text-muted); }

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-in {
  opacity:0; transform:translateY(20px);
  animation:fadeIn .6s var(--ease) forwards;
}
@keyframes fadeIn { to { opacity:1; transform:translateY(0); } }
.fade-in:nth-child(2) { animation-delay:0.1s; }
.fade-in:nth-child(3) { animation-delay:0.2s; }
.fade-in:nth-child(4) { animation-delay:0.3s; }
.fade-in:nth-child(5) { animation-delay:0.4s; }
.fade-in:nth-child(6) { animation-delay:0.5s; }

/* Shimmer for CTA */
@keyframes shimmer {
  0% { background-position:-200% 0; }
  100% { background-position:200% 0; }
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width:1024px) {
  .hero h1 { font-size:2.6rem; }
  .card-grid3, .hero-products { grid-template-columns:repeat(2,1fr); }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .product-detail .prod-features { grid-template-columns:repeat(2,1fr); }
  .compare-table { display:block; overflow-x:auto; }
  .tag-row { grid-template-columns:repeat(3,1fr); }
  .logo-grid { grid-template-columns:repeat(4,1fr); }
  .tier-grid { grid-template-columns:1fr; }
}

@media (max-width:768px) {
  .hero h1 { font-size:2.1rem; }
  .hero-stats { flex-wrap:wrap; gap:24px; }
  .card-grid2, .card-grid3, .card-grid4, .hero-products { grid-template-columns:1fr; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .contact-layout { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .product-detail .prod-features { grid-template-columns:1fr; }
  .tag-row { grid-template-columns:repeat(2,1fr); }
  .logo-grid { grid-template-columns:repeat(3,1fr); gap:10px; }
  .logo-item { height:68px; padding:12px 8px; }
  .logo-item img { max-height:38px; }
  .section-title { font-size:1.7rem; }
  .nav-menu { display:none; }
  .case-card { padding:28px 24px; }
  .case-metrics { gap:24px; flex-wrap:wrap; }
  .product-detail { padding:28px; }
  .hp-card { padding:28px 22px; }
}

/* Anchor offset */
[id] { scroll-margin-top:90px; }