@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap");

:root {
  --primary: #4f46e5;
  --primary-dark: #3730a3;
  --primary-light: #6366f1;
  --accent: #f97316;
  --accent-hover: #ea580c;
  --accent-cyan: #0891b2;
  --accent-purple: #7c3aed;
  --text: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --bg: #f8fafc;
  --bg-deep: #f1f5f9;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-dark: #0f172a;
  --bg-dark-soft: #1e293b;
  --white: #ffffff;
  --border: rgba(15, 23, 42, 0.08);
  --border-light: rgba(15, 23, 42, 0.12);
  --border-glow: rgba(79, 70, 229, 0.35);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 24px 48px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 8px 32px rgba(79, 70, 229, 0.12);
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --glass: blur(20px) saturate(160%);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body.site-tech {
  font-family: "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ── Ambient background ── */
.site-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg) 40%, var(--bg) 100%);
}

.site-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 70, 229, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 70, 229, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% -10%, black 20%, transparent 75%);
}

.site-bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: orb-float 18s ease-in-out infinite;
}

.site-bg-orb-1 {
  width: 560px;
  height: 560px;
  top: -180px;
  right: -80px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.14), transparent 68%);
}

.site-bg-orb-2 {
  width: 480px;
  height: 480px;
  bottom: 5%;
  left: -120px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.1), transparent 68%);
  animation-delay: -6s;
}

.site-bg-orb-3 {
  width: 360px;
  height: 360px;
  top: 38%;
  right: 8%;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.08), transparent 68%);
  animation-delay: -11s;
}

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(16px, -20px) scale(1.04); }
}

@keyframes shimmer {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.25), 0 20px 40px rgba(15, 23, 42, 0.2); }
  50% { box-shadow: 0 0 0 6px rgba(79, 70, 229, 0.08), 0 28px 52px rgba(79, 70, 229, 0.18); }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: var(--glass);
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 2px;
  min-width: 0;
}

.nav > a,
.nav-group-toggle {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s;
  padding: 7px 13px;
  border-radius: 999px;
  white-space: nowrap;
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

.nav > a:hover,
.nav-group-toggle:hover,
.nav-group.open > .nav-group-toggle,
.nav-group:hover > .nav-group-toggle {
  color: var(--text);
  background: rgba(79, 70, 229, 0.08);
}

.nav-group { position: relative; }

.nav-group-toggle .caret {
  display: inline-block;
  margin-left: 2px;
  font-size: 10px;
  opacity: 0.45;
  transition: transform 0.2s;
}

.nav-group.open .nav-group-toggle .caret,
.nav-group:hover .nav-group-toggle .caret {
  transform: rotate(180deg);
}

@media (min-width: 769px) {
  .nav-group::after {
    content: "";
    position: absolute;
    left: -6px;
    right: -6px;
    top: 100%;
    height: 14px;
    z-index: 119;
  }

  .nav-group.open .nav-dropdown,
  .nav-group:hover .nav-dropdown { display: block; }
}

.nav-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 172px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: var(--glass);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 6px;
  z-index: 120;
}

.nav-dropdown a {
  display: block;
  padding: 9px 14px;
  font-size: 13px;
  color: var(--text-muted);
  border-radius: 10px;
  transition: all 0.2s;
}

.nav-dropdown a:hover {
  color: var(--text);
  background: rgba(79, 70, 229, 0.08);
}

.nav > a.active,
.nav-dropdown a.active,
.nav-group.active > .nav-group-toggle {
  color: var(--primary);
  font-weight: 600;
}

.nav-actions { display: flex; gap: 8px; flex-shrink: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.25s var(--ease);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.btn-outline {
  background: var(--white);
  border: 1px solid var(--border-light);
  color: var(--text);
}

.btn-outline:hover {
  border-color: rgba(79, 70, 229, 0.4);
  background: rgba(79, 70, 229, 0.04);
  color: var(--primary);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #fb923c 50%, var(--accent-hover) 100%);
  background-size: 200% 200%;
  animation: shimmer 8s ease infinite;
  color: #fff;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 15px;
}

.menu-toggle {
  display: none;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
  color: var(--text);
}

/* ── Hero ── */
.hero {
  padding: 140px 0 100px;
  overflow: hidden;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  animation: fade-up 0.7s var(--ease) both;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(249, 115, 22, 0.06));
  border: 1px solid rgba(79, 70, 229, 0.18);
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 22px;
}

.hero-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(249, 115, 22, 0.6);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h1 {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  color: var(--text);
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-purple) 50%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 500px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.hero-stat {
  padding: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s, box-shadow 0.25s;
}

.hero-stat:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.hero-stat strong {
  display: block;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat span {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
  display: block;
  line-height: 1.4;
}

.hero-visual {
  position: relative;
  animation: fade-up 0.7s var(--ease) 0.15s both;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 10% 5%;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(249, 115, 22, 0.08));
  border-radius: 50%;
  filter: blur(40px);
  z-index: -1;
}

.phone-mock {
  width: 272px;
  margin: 0 auto;
  position: relative;
  background: linear-gradient(160deg, #3d4556 0%, #1a1f2e 40%, #0d1117 100%);
  border-radius: 44px;
  padding: 10px;
  border: 1.5px solid rgba(255, 255, 255, 0.12);
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.3),
    0 32px 64px rgba(15, 23, 42, 0.28),
    0 8px 20px rgba(15, 23, 42, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  animation: phone-float 6s ease-in-out infinite;
}

@keyframes phone-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.phone-btn {
  position: absolute;
  background: linear-gradient(180deg, #4a5568, #2d3748);
  border-radius: 2px;
  z-index: 2;
}

.phone-btn-vol {
  left: -3px;
  top: 100px;
  width: 3px;
  height: 28px;
  box-shadow: 0 36px 0 #3d4556, 0 68px 0 #3d4556;
}

.phone-btn-power {
  right: -3px;
  top: 120px;
  width: 3px;
  height: 44px;
}

.phone-screen {
  background: linear-gradient(180deg, #fff8f5 0%, #ffffff 18%, #f8fafc 100%);
  border-radius: 36px;
  height: 548px;
  color: var(--text);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

.phone-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 88px;
  height: 26px;
  background: #0d1117;
  border-radius: 20px;
  z-index: 10;
  box-shadow: inset 0 -1px 2px rgba(255, 255, 255, 0.06);
}

.phone-notch::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #1a2744, #0a0f18);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  flex-shrink: 0;
  position: relative;
  z-index: 5;
}

.phone-status-icons {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text);
}

.phone-app-bar {
  padding: 8px 14px 10px;
  flex-shrink: 0;
}

.phone-app-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.phone-app-logo {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #fb923c);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 3px 10px rgba(249, 115, 22, 0.35);
}

.phone-app-brand strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

.phone-app-brand small {
  font-size: 10px;
  color: var(--text-dim);
  font-weight: 500;
}

.phone-search {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 999px;
  font-size: 10px;
  color: var(--text-dim);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.phone-search svg { flex-shrink: 0; opacity: 0.4; }

.phone-banner {
  margin: 0 14px 10px;
  padding: 8px 12px;
  background: linear-gradient(135deg, #fff1eb, #ffe4d6);
  border: 1px solid rgba(249, 115, 22, 0.15);
  border-radius: 10px;
  font-size: 10px;
  font-weight: 600;
  color: #c2410c;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.phone-banner-tag {
  padding: 2px 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #fff;
  border-radius: 4px;
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
}

.phone-cards {
  flex: 1;
  overflow: hidden;
  padding: 0 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  mask-image: linear-gradient(180deg, black 85%, transparent 100%);
}

.phone-card {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 12px;
  padding: 10px 11px;
  position: relative;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
  flex-shrink: 0;
  animation: phone-card-in 0.5s var(--ease) both;
}

.phone-card--1 { animation-delay: 0.1s; }
.phone-card--2 { animation-delay: 0.2s; }
.phone-card--3 { animation-delay: 0.3s; }
.phone-card--4 { animation-delay: 0.4s; }
.phone-card--5 { animation-delay: 0.5s; }

@keyframes phone-card-in {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}

.phone-card:hover {
  transform: translateX(2px) scale(1.01);
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.12);
  border-color: rgba(249, 115, 22, 0.2);
}

.phone-card-icon {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}

.phone-card--1 .phone-card-icon { background: linear-gradient(135deg, #fff7ed, #ffedd5); }
.phone-card--2 .phone-card-icon { background: linear-gradient(135deg, #eff6ff, #dbeafe); }
.phone-card--3 .phone-card-icon { background: linear-gradient(135deg, #f0fdf4, #dcfce7); }
.phone-card--4 .phone-card-icon { background: linear-gradient(135deg, #faf5ff, #f3e8ff); }
.phone-card--5 .phone-card-icon { background: linear-gradient(135deg, #ecfdf5, #d1fae5); }

.phone-card-body { flex: 1; min-width: 0; }

.phone-card-title {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 2px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phone-card-desc {
  font-size: 9px;
  color: var(--text-dim);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.phone-card-badge {
  position: absolute;
  top: 8px;
  right: 10px;
  padding: 1px 5px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #fff;
  border-radius: 4px;
  font-size: 8px;
  font-weight: 700;
}

.phone-card-badge--green {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

.phone-tabbar {
  display: flex;
  justify-content: space-around;
  padding: 8px 6px 4px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  flex-shrink: 0;
}

.phone-tabbar span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 9px;
  color: var(--text-dim);
  font-weight: 500;
}

.phone-tabbar span i {
  font-style: normal;
  font-size: 14px;
  line-height: 1;
}

.phone-tabbar span.active {
  color: var(--accent);
  font-weight: 700;
}

.phone-home-indicator {
  width: 100px;
  height: 4px;
  background: rgba(15, 23, 42, 0.18);
  border-radius: 999px;
  margin: 6px auto 8px;
  flex-shrink: 0;
}

.float-card {
  position: absolute;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  font-size: 12px;
  color: var(--text-muted);
  animation: fade-up 0.7s var(--ease) 0.4s both;
}

.float-card-1 { top: 32px; right: -20px; }
.float-card-2 { bottom: 64px; left: -32px; animation-delay: 0.55s; }

.float-card strong {
  color: var(--primary);
  font-weight: 700;
}

/* ── Sections ── */
section { padding: 88px 0; position: relative; }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(79, 70, 229, 0.2);
  background: rgba(79, 70, 229, 0.06);
}

.section-header h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.025em;
  color: var(--text);
}

.section-header p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ── Cards ── */
.pillars { background: transparent; }

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.pillar-card,
.page-nav-card,
.solution-card,
.platform-item,
.module-panel,
.price-card,
.tech-card,
.step-card,
.highlight-card,
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}

.pillar-card {
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
}

.pillar-card:hover,
.page-nav-card:hover,
.solution-card:hover,
.platform-item:hover,
.price-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.pillar-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(249, 115, 22, 0.08));
  border: 1px solid rgba(79, 70, 229, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.pillar-card h3 { font-size: 16px; margin-bottom: 8px; font-weight: 700; }
.pillar-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* Page nav cards */
.page-nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 8px;
}

.page-nav-card {
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.page-nav-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.3s;
}

.page-nav-card:hover::before { opacity: 1; }

.page-nav-card .card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(249, 115, 22, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 14px;
  flex-shrink: 0;
}

.page-nav-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--text);
  font-weight: 700;
}

.page-nav-card p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 14px;
  flex: 1;
}

.page-nav-card .more {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}

.page-nav-card:hover .more { gap: 8px; }

/* Features */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 80px;
}

.feature-block:last-child { margin-bottom: 0; }
.feature-block.reverse .feature-content { order: 2; }
.feature-block.reverse .feature-visual { order: 1; }

.feature-content h3 {
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.feature-content > p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 15px;
  line-height: 1.8;
}

.feature-list { list-style: none; }

.feature-list li {
  padding: 10px 0;
  padding-left: 26px;
  position: relative;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.feature-list li:last-child { border-bottom: none; }

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  top: 11px;
}

.feature-visual-box {
  background: linear-gradient(145deg, rgba(79, 70, 229, 0.04), var(--white));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.mini-feature {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.mini-feature:hover {
  border-color: rgba(79, 70, 229, 0.3);
  box-shadow: var(--shadow-sm);
}

.mini-feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}

.mini-feature-text strong { display: block; font-size: 13px; color: var(--text); }
.mini-feature-text span { font-size: 12px; color: var(--text-dim); }

/* Platforms / modules */
.platforms,
.modules {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.platform-item {
  border-radius: 12px;
  padding: 22px 12px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
}

.platform-item span {
  display: block;
  font-size: 26px;
  margin-bottom: 6px;
}

/* Solutions */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.solution-card {
  border-radius: var(--radius);
  padding: 28px;
}

.solution-card h4 {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--primary);
  font-weight: 700;
}

.solution-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* Stats — dark band */
.stats {
  background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-soft) 100%);
  border: none;
  padding: 64px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stats-item strong {
  display: block;
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
  color: var(--white);
}

.stats-item span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* Pricing */
.pricing-trial {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.06), rgba(249, 115, 22, 0.04));
  border: 1px solid rgba(79, 70, 229, 0.15);
  border-radius: var(--radius);
  padding: 22px 28px;
  text-align: center;
  margin-bottom: 36px;
  font-size: 15px;
  color: var(--text-muted);
}

.pricing-trial strong {
  color: var(--accent);
  font-size: 17px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.price-card {
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  border-color: var(--border-glow);
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.06) 0%, var(--bg-card) 100%);
  box-shadow: var(--shadow-glow);
}

.price-badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  white-space: nowrap;
}

.price-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.price-amount { text-align: center; margin-bottom: 8px; }

.price-amount .num {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1.2;
}

.price-amount .unit {
  font-size: 14px;
  color: var(--text-dim);
}

.price-desc {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 22px;
  min-height: 40px;
}

.price-features {
  list-style: none;
  flex: 1;
  margin-bottom: 24px;
}

.price-features li {
  font-size: 13px;
  padding: 8px 0;
  padding-left: 22px;
  position: relative;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.price-features li:last-child { border-bottom: none; }

.price-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.price-card .btn { width: 100%; }

.pricing-note {
  text-align: center;
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.8;
}

/* CTA */
.cta { text-align: center; padding-bottom: 96px; }

.cta-box {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2744 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  box-shadow: var(--shadow-lg);
  max-width: 780px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.15), transparent 70%);
  pointer-events: none;
}

.cta-box::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.2), transparent 70%);
  pointer-events: none;
}

.cta-box h2 {
  font-size: clamp(24px, 3.2vw, 32px);
  margin-bottom: 14px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
  position: relative;
}

.cta-box > p {
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 28px;
  font-size: 15px;
  position: relative;
}

.cta-box .btn-primary { position: relative; }

.cta-contact {
  margin-top: 22px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  position: relative;
}

.cta-contact strong,
.cta-contact a { color: rgba(255, 255, 255, 0.7); }
.cta-contact a strong { color: var(--accent); }
.cta-contact a:hover { color: var(--white); }

/* Tech / advantages */
.advantages-tech {
  margin-top: 56px;
  padding-top: 56px;
  border-top: 1px solid var(--border);
}

.advantages-tech-header h2 { font-size: 26px; }

.tech-intro {
  max-width: 720px;
  margin: 0 auto 36px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

.tech-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.tech-card {
  border-radius: var(--radius);
  padding: 26px;
}

.tech-card h3 {
  font-size: 16px;
  margin-bottom: 14px;
  color: var(--primary);
  font-weight: 700;
}

.arch-stack { display: flex; flex-direction: column; gap: 8px; }

.arch-layer {
  background: var(--bg-deep);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--primary);
  border-radius: 10px;
  padding: 12px 14px;
}

.arch-layer strong { display: block; font-size: 13px; margin-bottom: 3px; }
.arch-layer span { font-size: 12px; color: var(--text-muted); line-height: 1.6; }

.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.tech-stack-item {
  background: var(--bg-deep);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 12px;
}

.tech-stack-item strong {
  display: block;
  font-size: 12px;
  color: var(--primary);
  margin-bottom: 3px;
}

.tech-stack-item span { font-size: 12px; color: var(--text-muted); }

.tech-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 40px;
}

.tech-point {
  background: rgba(79, 70, 229, 0.05);
  border: 1px solid rgba(79, 70, 229, 0.12);
  border-radius: var(--radius);
  padding: 18px;
}

.tech-point h4 { font-size: 14px; margin-bottom: 6px; }
.tech-point p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

.compare-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.compare-wrap .compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  background: transparent;
}

.compare-wrap .compare-table th,
.compare-wrap .compare-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  line-height: 1.65;
  vertical-align: top;
  color: var(--text-muted);
}

.compare-wrap .compare-table th {
  background: var(--bg-deep);
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
}

.compare-wrap .compare-table tr:last-child td { border-bottom: none; }

.compare-wrap .compare-table .col-go {
  background: rgba(79, 70, 229, 0.04);
  color: var(--text);
}

.compare-wrap .compare-table .tag-go {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.12);
  color: var(--primary);
  font-size: 11px;
  font-weight: 700;
}

.compare-note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.7;
}

/* Footer — dark */
.footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.55);
  padding: 52px 0 24px;
  border-top: none;
  position: relative;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.footer-desc { font-size: 13px; line-height: 1.8; }

.footer-col h5 {
  color: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 20px;
  text-align: center;
  font-size: 12px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s;
}

.footer-bottom a:hover { color: var(--accent); }

/* Modules */
.module-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.module-panel {
  border-radius: var(--radius);
  padding: 26px;
}

.module-panel h3 {
  font-size: 18px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.module-panel > p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}

.module-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.module-tag {
  display: inline-block;
  padding: 5px 11px;
  background: rgba(79, 70, 229, 0.08);
  border: 1px solid rgba(79, 70, 229, 0.12);
  color: var(--primary);
  border-radius: 8px;
  font-size: 12px;
  line-height: 1.4;
}

.module-tag--admin {
  background: rgba(249, 115, 22, 0.08);
  border-color: rgba(249, 115, 22, 0.15);
  color: var(--accent-hover);
}

/* Inner pages */
.page-hero {
  padding: 124px 0 44px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--white) 0%, var(--bg) 100%);
}

.breadcrumb {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 14px;
}

.breadcrumb a:hover { color: var(--primary); }

.page-hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-hero h1::after {
  content: "";
  display: block;
  width: 48px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px;
  margin-top: 14px;
}

.page-hero .lead {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.8;
}

.inner-main { padding: 56px 0 88px; }

.content-intro {
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.06), rgba(249, 115, 22, 0.03));
  border: 1px solid rgba(79, 70, 229, 0.12);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin-bottom: 40px;
}

.content-intro h2 {
  font-size: 20px;
  margin-bottom: 10px;
  font-weight: 700;
}

.content-intro p {
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 14px;
}

.content-intro p + p { margin-top: 8px; }
.content-intro a { color: var(--primary); font-weight: 500; }

.steps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 36px 0 40px;
}

.step-card {
  border-radius: var(--radius);
  padding: 24px;
}

.step-card .step-num {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent-purple));
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.step-card h3 { font-size: 15px; margin-bottom: 6px; font-weight: 700; }
.step-card p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

.compare-table-wrap { overflow-x: auto; margin: 28px 0 40px; }

.compare-table-wrap .compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 560px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.compare-table-wrap .compare-table th,
.compare-table-wrap .compare-table td {
  border-bottom: 1px solid var(--border);
  padding: 13px 16px;
  text-align: left;
  color: var(--text-muted);
}

.compare-table-wrap .compare-table th {
  background: var(--bg-deep);
  font-weight: 600;
  color: var(--text);
}

.compare-table-wrap .compare-table tr:last-child td { border-bottom: none; }
.compare-table-wrap .compare-table td:first-child { font-weight: 600; color: var(--text); white-space: nowrap; }
.compare-table-wrap .compare-table .yes { color: #16a34a; font-weight: 600; }
.compare-table-wrap .compare-table .no { color: var(--text-dim); }

.faq-list { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }

.faq-item { border-radius: 12px; padding: 0 20px; }

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  padding: 16px 0;
  list-style: none;
  color: var(--text);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--primary);
  font-size: 18px;
  font-weight: 400;
}

.faq-item[open] summary::after { content: "−"; }

.faq-item p {
  padding: 0 0 16px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item a { color: var(--primary); }

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 28px 0 36px;
}

.highlight-card { border-radius: 12px; padding: 20px; }

.highlight-card strong {
  display: block;
  margin-bottom: 6px;
  color: var(--primary);
  font-size: 14px;
}

.highlight-card span { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

.related-block {
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}

.related-block h3 { font-size: 18px; margin-bottom: 14px; font-weight: 700; }

.related-links { display: flex; flex-wrap: wrap; gap: 8px; }

.related-links a {
  padding: 7px 14px;
  background: var(--white);
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all 0.25s;
}

.related-links a:hover {
  border-color: var(--border-glow);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.seo-text {
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.85;
}

.seo-text a { color: var(--primary); }
.seo-text strong { color: var(--text-muted); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .hero-grid,
  .feature-block { grid-template-columns: 1fr; }
  .pillar-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-grid { grid-template-columns: repeat(3, 1fr); }
  .solution-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .feature-block.reverse .feature-content,
  .feature-block.reverse .feature-visual { order: unset; }
  .hero-visual { margin-top: 40px; }
  .float-card { display: none; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: var(--glass);
    padding: 14px 20px 18px;
    border-bottom: 1px solid var(--border-light);
    gap: 2px;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }
  .nav > a,
  .nav-group-toggle {
    width: 100%;
    text-align: left;
    padding: 11px 10px;
    border-radius: 10px;
  }
  .nav-dropdown {
    position: static;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 6px 8px;
    min-width: 0;
  }
  .nav-group.open .nav-dropdown { display: block; }
  .nav-group:hover .nav-dropdown { display: none; }
  .nav-group.open:hover .nav-dropdown { display: block; }
  .nav-actions { display: none; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; }
  .hero { padding: 112px 0 64px; }
  .hero-stats { grid-template-columns: 1fr; }
  .pillar-grid,
  .platform-grid,
  .stats-grid,
  .pricing-grid,
  .module-columns,
  .page-nav-grid,
  .steps-row,
  .highlight-grid { grid-template-columns: 1fr; }
  .tech-layout,
  .tech-points { grid-template-columns: 1fr; }
  .tech-stack-grid { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .section-header h2 { font-size: 24px; }
  .page-hero h1 { font-size: 26px; }
  .content-intro { padding: 18px; }
  .cta-box { padding: 36px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .phone-mock { animation: none; }
  .phone-card { animation: none; opacity: 1; transform: none; }
}