/* ========== Reset & Variables ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #0A0E1A;
  --bg-alt: #0F1320;
  --bg-card: #131829;
  --bg-card-hover: #182040;
  --surface: #1A2038;
  --text: #E8ECF4;
  --text-muted: #8892B0;
  --text-dim: #5A6488;
  --border: rgba(100, 130, 200, 0.12);
  --border-hover: rgba(100, 130, 200, 0.3);
  --primary: #00D4FF;
  --primary-dim: #0099CC;
  --secondary: #4F8EFF;
  --accent: #9B6DFF;
  --accent-soft: rgba(155, 109, 255, 0.15);
  --grad-primary: linear-gradient(135deg, #00D4FF 0%, #4F8EFF 50%, #9B6DFF 100%);
  --grad-soft: linear-gradient(135deg, rgba(0,212,255,0.1) 0%, rgba(79,142,255,0.1) 50%, rgba(155,109,255,0.1) 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 12px 48px rgba(0, 212, 255, 0.15);
  --max-w: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style-position: inside; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--surface); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dim); }

.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ========== Layout ========== */
.section { padding: 100px 24px; max-width: var(--max-w); margin: 0 auto; }

.section-alt {
  max-width: none;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 100px 24px;
}
.section-alt > .section-header,
.section-alt > .features-grid,
.section-alt > .arch-container,
.section-alt > .forms-grid,
.section-alt > .pricing-grid,
.section-alt > .maintenance-box { max-width: var(--max-w); margin-left: auto; margin-right: auto; }

.section-header { text-align: center; margin-bottom: 64px; }

.section-tag {
  display: inline-block;
  font-size: 13px; font-weight: 500; letter-spacing: 2px;
  color: var(--primary);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 20px;
  padding: 5px 16px;
  margin-bottom: 20px;
}

.section-title { font-size: 2.4rem; font-weight: 700; margin-bottom: 16px; letter-spacing: -0.5px; }
.section-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 640px; margin: 0 auto; }

/* ========== Buttons ========== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500; cursor: pointer;
  transition: var(--transition); border: none; font-family: inherit;
}
.btn-primary {
  background: var(--grad-primary); color: #0A0E1A; font-weight: 600;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0, 212, 255, 0.4); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border-hover); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); border-color: var(--primary); }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary-dim); }
.btn-outline:hover { background: rgba(0, 212, 255, 0.08); }
.btn-block { display: flex; justify-content: center; width: 100%; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* ========== Navbar ========== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0; transition: var(--transition); background: transparent;
}
.navbar.scrolled {
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border); padding: 12px 0;
}
.nav-container {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 36px; height: 36px; }
.logo-text {
  font-size: 1.4rem; font-weight: 700;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-link { font-size: 15px; color: var(--text-muted); transition: var(--transition); font-weight: 400; }
.nav-link:hover { color: var(--text); }
.nav-cta {
  background: var(--grad-primary); color: #0A0E1A !important;
  font-weight: 600; padding: 8px 20px; border-radius: 20px;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); transition: var(--transition); border-radius: 2px; }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

/* ========== Hero ========== */
.hero {
  position: relative; min-height: 100vh; display: flex;
  align-items: center; justify-content: center;
  overflow: hidden; padding: 120px 24px 80px;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.4; animation: glow-float 8s ease-in-out infinite; }
.hero-glow-1 { width: 500px; height: 500px; background: #00D4FF; top: -100px; left: -100px; }
.hero-glow-2 { width: 600px; height: 600px; background: #9B6DFF; bottom: -200px; right: -100px; animation-delay: -4s; }
@keyframes glow-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.1); }
}
.hero-particles { position: absolute; inset: 0; overflow: hidden; }
.particle {
  position: absolute; width: 3px; height: 3px; background: var(--primary);
  border-radius: 50%; opacity: 0; animation: particle-rise 10s linear infinite;
}
@keyframes particle-rise {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.6; } 90% { opacity: 0.3; }
  100% { opacity: 0; transform: translateY(-100px) scale(1); }
}
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 800px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--primary);
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 24px; padding: 8px 20px; margin-bottom: 32px;
}
.pulse-dot { width: 8px; height: 8px; background: var(--primary); border-radius: 50%; animation: pulse 2s ease-in-out infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4); }
  50% { opacity: 0.6; box-shadow: 0 0 0 8px rgba(0, 212, 255, 0); }
}
.hero-title { font-size: 3.8rem; font-weight: 900; line-height: 1.2; letter-spacing: -1px; margin-bottom: 24px; }
.hero-subtitle { font-size: 1.15rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 48px; }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.stat-num {
  font-size: 2.5rem; font-weight: 800;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; line-height: 1;
}
.stat-unit { font-size: 1rem; font-weight: 400; color: var(--text-dim); margin-left: 2px; }
.stat-label { font-size: 13px; color: var(--text-dim); margin-top: 8px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ========== Features ========== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px 28px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--grad-primary); opacity: 0; transition: var(--transition);
}
.feature-card:hover { border-color: var(--border-hover); background: var(--bg-card-hover); transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px; margin-bottom: 24px;
  display: flex; align-items: center; justify-content: center;
  background: var(--grad-soft); border-radius: 14px; border: 1px solid var(--border);
}
.feature-icon svg { width: 32px; height: 32px; }
.feature-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 12px; }
.feature-card p { font-size: 14.5px; color: var(--text-muted); line-height: 1.7; }

/* ========== Security Section ========== */
.section-security { position: relative; }
.security-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.security-glow { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 800px; height: 800px; border-radius: 50%; background: radial-gradient(circle, rgba(0,212,255,0.06) 0%, transparent 70%); filter: blur(40px); }
.section-security > * { position: relative; z-index: 1; }
.section-tag-security { color: #00D4FF; background: rgba(0,212,255,0.12); border-color: rgba(0,212,255,0.3); }

.security-compare { display: flex; align-items: stretch; gap: 0; margin-bottom: 40px; }
.security-col { flex: 1; padding: 32px 28px; border-radius: var(--radius); border: 1px solid var(--border); }
.security-col-bad { background: rgba(255,100,100,0.04); border-color: rgba(255,100,100,0.12); }
.security-col-good { background: rgba(0,212,255,0.04); border-color: rgba(0,212,255,0.15); }
.security-col-header { display: flex; align-items: center; gap: 12px; margin-bottom: 24px; }
.security-col-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: rgba(255,100,100,0.1); color: #FF6B6B; }
.security-col-icon-good { background: rgba(0,212,255,0.1); color: #00D4FF; }
.security-col-header h3 { font-size: 1.3rem; font-weight: 700; }

.security-flow { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 24px; }
.flow-step { font-size: 13.5px; color: var(--text-muted); padding: 10px 20px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border); width: 100%; text-align: center; }
.flow-step-danger { color: #FF6B6B; border-color: rgba(255,100,100,0.2); background: rgba(255,100,100,0.06); }
.flow-step-safe { color: #00D4FF; border-color: rgba(0,212,255,0.2); background: rgba(0,212,255,0.06); }
.flow-arrow { font-size: 13px; font-weight: 600; color: var(--text-dim); }
.flow-arrow-bad { color: rgba(255,100,100,0.5); }
.flow-arrow-good { color: rgba(0,212,255,0.5); }

.security-risk { display: flex; flex-direction: column; gap: 8px; }
.risk-item { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: #FF6B6B; line-height: 1.6; }
.risk-item-good { color: var(--text); }
.risk-x { flex-shrink: 0; width: 18px; height: 18px; border-radius: 50%; background: rgba(255,100,100,0.15); color: #FF6B6B; font-size: 11px; display: flex; align-items: center; justify-content: center; margin-top: 1px; }
.risk-check { flex-shrink: 0; width: 18px; height: 18px; border-radius: 50%; background: rgba(0,212,255,0.15); color: #00D4FF; font-size: 11px; display: flex; align-items: center; justify-content: center; margin-top: 1px; }

.security-vs { display: flex; align-items: center; justify-content: center; font-size: 1.5rem; font-weight: 900; color: var(--text-dim); padding: 0 16px; }

.security-verify { background: var(--bg-card); border: 1px solid rgba(0,212,255,0.15); border-radius: var(--radius); padding: 36px 32px; margin-bottom: 32px; }
.verify-header { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.verify-header svg { color: #00D4FF; }
.verify-header h3 { font-size: 1.2rem; font-weight: 700; }
.verify-steps { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.verify-step { display: flex; align-items: center; gap: 12px; background: var(--surface); border-radius: var(--radius-sm); padding: 16px 20px; border: 1px solid var(--border); flex: 1; min-width: 200px; }
.verify-num { width: 32px; height: 32px; border-radius: 50%; background: var(--grad-primary); color: #0A0E1A; font-size: 1rem; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.verify-text { font-size: 14px; color: var(--text-muted); line-height: 1.5; }
.verify-text strong { color: var(--text); display: block; margin-bottom: 2px; }
.verify-arrow { font-size: 1.2rem; color: var(--text-dim); }
.verify-note { text-align: center; font-size: 14px; color: var(--text-muted); padding: 12px 20px; background: var(--surface); border-radius: var(--radius-sm); }

.security-compliance { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px 32px; }
.security-compliance h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; text-align: center; }
.compliance-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.compliance-item { display: flex; flex-direction: column; gap: 6px; padding: 16px 20px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.compliance-label { font-size: 12px; font-weight: 600; color: var(--primary); }
.compliance-value { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* ========== Architecture ========== */
.arch-container { max-width: 800px; margin: 0 auto; }
.arch-stack { display: flex; flex-direction: column; gap: 0; }
.arch-layer {
  display: flex; align-items: center; gap: 24px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 32px;
  transition: var(--transition); position: relative;
}
.arch-layer:hover { border-color: rgba(0, 212, 255, 0.3); background: var(--bg-card-hover); transform: translateX(8px); }
.arch-layer-num { font-size: 1.6rem; font-weight: 900; color: var(--text-dim); min-width: 48px; text-align: center; }
.arch-layer-body { flex: 1; }
.arch-layer-name { font-size: 1.2rem; font-weight: 700; margin-bottom: 4px; }
.arch-layer-desc { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; }
.arch-layer-tech { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font-size: 12px; font-weight: 500; padding: 3px 12px; border-radius: 12px;
  background: rgba(0, 212, 255, 0.08); border: 1px solid rgba(0, 212, 255, 0.15); color: var(--primary);
}
.arch-layer-icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; color: var(--text-dim); opacity: 0.6; }
.arch-layer-icon svg { width: 28px; height: 28px; }
.arch-connector { width: 2px; height: 24px; background: linear-gradient(to bottom, var(--border-hover), transparent); margin-left: 52px; }
.arch-note {
  margin-top: 40px; display: flex; gap: 16px;
  background: rgba(155, 109, 255, 0.08); border: 1px solid rgba(155, 109, 255, 0.2);
  border-radius: var(--radius); padding: 24px 28px;
  font-size: 14.5px; color: var(--text-muted); line-height: 1.7;
}
.arch-note-icon { flex-shrink: 0; width: 24px; height: 24px; color: var(--accent); }
.arch-note strong { color: var(--text); }

/* ========== Timeline / Deploy ========== */
.timeline { max-width: 760px; margin: 0 auto; position: relative; }
.timeline-item { display: flex; gap: 32px; padding-bottom: 48px; position: relative; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-marker { flex-shrink: 0; display: flex; flex-direction: column; align-items: center; }
.timeline-marker span {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg-card); border: 2px solid var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 700; color: var(--primary);
}
.timeline-line { width: 2px; flex: 1; background: linear-gradient(to bottom, var(--border-hover), var(--border)); min-height: 40px; margin-top: 8px; }
.timeline-content { padding-top: 4px; }
.timeline-time { font-size: 13px; color: var(--primary); font-weight: 500; margin-bottom: 8px; }
.timeline-content h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 10px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.timeline-content p { font-size: 14.5px; color: var(--text-muted); line-height: 1.7; }
.tag-free { font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 10px; background: rgba(0,212,255,0.12); color: var(--primary); border: 1px solid rgba(0,212,255,0.2); }
.timeline-content strong { color: var(--text); }

/* Acceptance box */
.acceptance-box { max-width: 760px; margin: 48px auto 0; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.acceptance-header { display: flex; align-items: center; gap: 12px; padding: 20px 28px; background: var(--grad-soft); border-bottom: 1px solid var(--border); }
.acceptance-header svg { color: var(--primary); }
.acceptance-header h3 { font-size: 1.15rem; font-weight: 700; }
.acceptance-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--border); }
.accept-item { display: flex; gap: 12px; align-items: flex-start; padding: 16px 20px; background: var(--bg-card); font-size: 14px; color: var(--text-muted); }
.accept-num { width: 24px; height: 24px; border-radius: 50%; background: rgba(0,212,255,0.12); color: var(--primary); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.accept-item strong { color: var(--text); display: block; margin-bottom: 2px; }
.accept-must { grid-column: span 2; }
.accept-badge { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 8px; background: rgba(255,100,100,0.15); color: #FF6B6B; border: 1px solid rgba(255,100,100,0.2); }
.accept-badge-accent { background: rgba(155,109,255,0.15); color: var(--accent); border-color: rgba(155,109,255,0.2); }
.acceptance-extra { padding: 16px 28px; font-size: 13px; color: var(--text-muted); border-top: 1px solid var(--border); }

/* ========== Forms ========== */
.forms-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.form-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px 28px;
  transition: var(--transition); position: relative; overflow: hidden;
}
.form-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.form-card-muted { opacity: 0.75; }
.form-badge {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; font-weight: 800; margin-bottom: 20px;
}
.form-badge-a { background: rgba(0,212,255,0.12); color: var(--primary); border: 1px solid rgba(0,212,255,0.2); }
.form-badge-b { background: rgba(136,146,176,0.12); color: var(--text-muted); border: 1px solid var(--border); }
.form-badge-c { background: rgba(155,109,255,0.12); color: var(--accent); border: 1px solid rgba(155,109,255,0.2); }
.form-card h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.form-subtitle { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; }
.form-list { list-style: none; padding: 0; }
.form-list li { font-size: 14px; color: var(--text-muted); padding: 8px 0; border-bottom: 1px solid var(--border); }
.form-list li:last-child { border-bottom: none; }
.form-list strong { color: var(--text); }
.form-tag { position: absolute; top: 20px; right: 20px; font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 10px; background: var(--grad-primary); color: #0A0E1A; }

/* ========== Scenarios ========== */
.scenarios-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.scenario-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 24px;
  transition: var(--transition);
}
.scenario-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.scenario-icon { width: 48px; height: 48px; margin-bottom: 20px; color: var(--primary); }
.scenario-icon svg { width: 100%; height: 100%; }
.scenario-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 12px; }
.scenario-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 14px; }
.scenario-list { list-style: none; padding: 0; margin: 0; }
.scenario-list li { font-size: 13.5px; color: var(--text-muted); line-height: 1.65; padding: 8px 0 8px 18px; position: relative; border-top: 1px solid rgba(255,255,255,0.05); }
.scenario-list li:first-child { border-top: none; }
.scenario-list li::before { content: ""; position: absolute; left: 0; top: 14px; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, #00D4FF, #4F8EFF); }
.scenario-list li strong { color: var(--text); font-weight: 600; }

/* Compare box */
.compare-box { margin-top: 64px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; }
.compare-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 24px; text-align: center; }
.compare-table-wrap { overflow-x: auto; margin-bottom: 20px; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.compare-table th { text-align: left; padding: 14px 20px; background: var(--surface); font-weight: 600; color: var(--text-muted); border-bottom: 2px solid var(--border); }
.compare-table td { padding: 14px 20px; border-bottom: 1px solid var(--border); color: var(--text-muted); }
.compare-table td:first-child { font-weight: 500; color: var(--text); }
.td-zero { color: var(--primary); font-weight: 700; }
.tr-highlight td { background: rgba(0,212,255,0.04); font-weight: 600; }
.compare-note { font-size: 14px; color: var(--text-muted); line-height: 1.8; padding: 16px 20px; background: var(--surface); border-radius: var(--radius-sm); }
.compare-note strong { color: var(--text); }

/* ========== Pricing ========== */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.pricing-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 40px 32px;
  transition: var(--transition); position: relative;
  display: flex; flex-direction: column;
}
.pricing-card:hover { border-color: var(--border-hover); transform: translateY(-4px); }
.pricing-card-featured {
  border-color: var(--primary);
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(0,212,255,0.03) 100%);
  box-shadow: 0 0 40px rgba(0,212,255,0.08);
}
.pricing-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--grad-primary); color: #0A0E1A;
  font-size: 13px; font-weight: 700; padding: 5px 20px;
  border-radius: 20px; white-space: nowrap;
}
.pricing-name { font-size: 1.2rem; font-weight: 700; margin-bottom: 8px; }
.pricing-price { font-size: 2.8rem; font-weight: 900; margin-bottom: 8px; background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.pricing-suit { font-size: 13px; color: var(--text-dim); margin-bottom: 24px; }
.pricing-features { list-style: none; padding: 0; flex: 1; margin-bottom: 24px; }
.pricing-features li { font-size: 14px; color: var(--text-muted); padding: 8px 0; padding-left: 28px; position: relative; }
.pricing-features li::before { content: ''; position: absolute; left: 0; top: 13px; width: 18px; height: 18px; border-radius: 50%; background: rgba(0,212,255,0.1); border: 1px solid rgba(0,212,255,0.2); }
.pricing-features li::after { content: ''; position: absolute; left: 6px; top: 17px; width: 6px; height: 3px; border-left: 2px solid var(--primary); border-bottom: 2px solid var(--primary); transform: rotate(-45deg); }
.pricing-features strong { color: var(--text); }
.pricing-note { font-size: 12px; color: var(--text-dim); text-align: center; margin-bottom: 20px; padding: 10px; background: var(--surface); border-radius: var(--radius-sm); }

/* Maintenance */
.maintenance-box { margin-top: 48px; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 40px; }
.maintenance-header { text-align: center; margin-bottom: 28px; }
.maintenance-header h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.maintenance-header p { font-size: 14px; color: var(--text-muted); }
.maintenance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px; }
.maint-item { display: flex; flex-direction: column; align-items: center; padding: 24px 16px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.maint-item-featured { border-color: var(--primary); background: rgba(0,212,255,0.04); }
.maint-name { font-size: 15px; font-weight: 700; margin-bottom: 12px; }
.maint-price { font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.maint-year { font-size: 13px; color: var(--text-dim); margin-top: 6px; }
.maint-includes { font-size: 13px; color: var(--text-muted); line-height: 1.9; padding: 16px 20px; background: var(--surface); border-radius: var(--radius-sm); }
.maint-includes strong { color: var(--text); }

/* ========== FAQ ========== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 24px 0; background: none; border: none; cursor: pointer;
  font-family: inherit; font-size: 1.1rem; font-weight: 600; color: var(--text);
  text-align: left; transition: var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-icon { flex-shrink: 0; transition: var(--transition); color: var(--text-muted); }
.faq-question.active .faq-icon { transform: rotate(180deg); color: var(--primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; padding: 0; }
.faq-answer.active { max-height: 500px; padding-bottom: 24px; }
.faq-answer p, .faq-answer ul, .faq-answer ol { font-size: 15px; color: var(--text-muted); line-height: 1.8; margin-bottom: 12px; }
.faq-answer ul, .faq-answer ol { padding-left: 24px; list-style-position: outside; }
.faq-answer li { margin-bottom: 6px; }
.faq-answer strong { color: var(--text); }

/* ========== CTA ========== */
.cta-section { position: relative; padding: 100px 24px; overflow: hidden; }
.cta-bg { position: absolute; inset: 0; z-index: 0; }
.cta-glow { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.25; }
.cta-glow-1 { width: 400px; height: 400px; background: #00D4FF; top: 50%; left: 10%; transform: translateY(-50%); }
.cta-glow-2 { width: 400px; height: 400px; background: #9B6DFF; top: 50%; right: 10%; transform: translateY(-50%); }
.cta-content { position: relative; z-index: 1; text-align: center; max-width: 700px; margin: 0 auto; }
.cta-badge { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--primary); background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.25); border-radius: 24px; padding: 8px 20px; margin-bottom: 28px; }
.cta-title { font-size: 2.6rem; font-weight: 800; margin-bottom: 20px; }
.cta-desc { font-size: 1.1rem; color: var(--text-muted); line-height: 1.8; margin-bottom: 40px; }
.cta-desc strong { color: var(--text); }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 32px; }
.cta-meta { font-size: 13px; color: var(--text-dim); }

/* ========== Footer ========== */
.footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 64px 24px 0; }
.footer-content { max-width: var(--max-w); margin: 0 auto; display: grid; grid-template-columns: 2fr 3fr; gap: 64px; padding-bottom: 48px; }
.footer-brand { }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-desc { font-size: 14px; color: var(--text-muted); line-height: 1.8; max-width: 360px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.footer-col { display: flex; flex-direction: column; gap: 12px; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.footer-col a, .footer-col span { font-size: 13px; color: var(--text-muted); transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { max-width: var(--max-w); margin: 0 auto; padding: 24px 0; border-top: 1px solid var(--border); }
.footer-bottom p { font-size: 13px; color: var(--text-dim); text-align: center; }

/* ========== Modal ========== */
.contact-modal { position: fixed; inset: 0; z-index: 2000; display: none; align-items: center; justify-content: center; padding: 24px; }
.contact-modal.active { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.modal-card {
  position: relative; max-width: 480px; width: 100%;
  background: var(--bg-card); border: 1px solid var(--border-hover);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  animation: modal-in 0.3s ease;
}
@keyframes modal-in { from { opacity: 0; transform: scale(0.95) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--text-muted); border-radius: 50%; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); }
.modal-close:hover { color: var(--text); background: var(--surface); }
.modal-header { padding: 36px 32px 24px; text-align: center; background: var(--grad-soft); border-bottom: 1px solid var(--border); }
.modal-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--primary); background: rgba(0,212,255,0.12); border-radius: 16px; padding: 5px 14px; margin-bottom: 16px; }
.modal-header h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 12px; }
.modal-header p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.modal-body { padding: 32px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; margin-bottom: 24px; }
.contact-item { display: flex; gap: 16px; align-items: center; padding: 20px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.contact-item-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--grad-soft); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--primary); flex-shrink: 0; }
.contact-label { font-size: 12px; color: var(--text-dim); margin-bottom: 4px; }
.contact-value { font-size: 16px; color: var(--text); font-weight: 500; }
.contact-note { font-size: 13px; color: var(--text-muted); line-height: 1.8; padding: 16px 20px; background: var(--surface); border-radius: var(--radius-sm); border: 1px solid var(--border); }

/* ========== Lead Form ========== */
.lead-form { margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { display: flex; flex-direction: column; }
.form-group-full { margin-bottom: 20px; }
.form-group label { font-size: 13px; font-weight: 500; color: var(--text-muted); margin-bottom: 6px; }
.req { color: #FF6B6B; }
.form-group input, .form-group select, .form-group textarea {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 15px; color: var(--text); font-family: inherit;
  transition: var(--transition); outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,212,255,0.1);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-dim); }
.form-group textarea { resize: vertical; min-height: 60px; }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-card); color: var(--text); }
.form-disclaimer { font-size: 12px; color: var(--text-dim); text-align: center; margin-top: 12px; line-height: 1.6; }

/* Lead success */
.lead-success { text-align: center; padding: 24px 0; margin-bottom: 24px; }
.success-icon { margin: 0 auto 16px; }
.lead-success h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; }
.lead-success p { font-size: 15px; color: var(--text-muted); }
.success-phone { margin-top: 16px; }
.success-phone a { font-size: 1.3rem; font-weight: 700; color: var(--primary); }
.success-email { margin-top: 8px; }
.success-email a { font-size: 1rem; font-weight: 500; color: var(--secondary); text-decoration: underline; }

/* Or divider */
.or-divider { display: flex; align-items: center; gap: 12px; margin: 24px 0; }
.or-divider::before, .or-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.or-divider span { font-size: 13px; color: var(--text-dim); }

/* Direct contact */
.direct-contact { margin-bottom: 8px; }
.direct-contact .btn { font-size: 18px; font-weight: 600; letter-spacing: 1px; }

/* ========== Animations ========== */
[data-anim] { opacity: 0; transition: opacity 0.6s ease, transform 0.6s ease; }
[data-anim="fade-up"] { transform: translateY(40px); }
[data-anim="slide-right"] { transform: translateX(-40px); }
[data-anim].visible { opacity: 1; transform: translate(0, 0); }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .scenarios-grid { grid-template-columns: repeat(2, 1fr); }
  .forms-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .form-card { padding: 28px 24px; }
  .hero-title { font-size: 3rem; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .maintenance-grid { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
  .footer-content { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(10,14,26,0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); flex-direction: column; padding: 24px; gap: 20px; border-bottom: 1px solid var(--border); }
  .nav-links.active { display: flex; }
  .nav-toggle { display: flex; }
  .section { padding: 64px 20px; }
  .section-alt { padding: 64px 20px; }
  .section-title { font-size: 1.8rem; }
  .hero { padding: 100px 20px 60px; min-height: auto; }
  .hero-title { font-size: 2.2rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-stats { gap: 24px; }
  .stat-num { font-size: 1.8rem; }
  .features-grid { grid-template-columns: 1fr; }
  .scenarios-grid { grid-template-columns: 1fr; }
  .acceptance-grid { grid-template-columns: 1fr; }
  .accept-must { grid-column: span 1; }
  .arch-layer { flex-wrap: wrap; gap: 16px; padding: 20px 24px; }
  .arch-layer-icon { display: none; }
  .compare-box { padding: 24px 20px; }
  .pricing-card { padding: 32px 24px; }
  .cta-title { font-size: 2rem; }
  .timeline { padding: 0 8px; }
  .timeline-item { gap: 20px; }
  .footer-links { grid-template-columns: 1fr; gap: 24px; }
  .modal-header { padding: 28px 24px 20px; }
  .modal-body { padding: 24px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .modal-card { max-width: 100%; }
  .security-compare { flex-direction: column; gap: 16px; }
  .security-vs { padding: 8px 0; }
  .compliance-grid { grid-template-columns: 1fr; }
  .verify-steps { flex-direction: column; }
  .verify-arrow { display: none; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 1.8rem; }
  .hero-badge { font-size: 12px; padding: 6px 14px; }
  .hero-stats { gap: 16px; }
  .hero-stat { min-width: calc(50% - 8px); }
  .stat-num { font-size: 1.5rem; }
  .section-title { font-size: 1.5rem; }
  .section-tag { font-size: 11px; }
  .btn { font-size: 14px; padding: 10px 24px; }
  .btn-lg { padding: 14px 28px; }
  .pricing-price { font-size: 2.2rem; }
  .cta-title { font-size: 1.6rem; }
}