:root {
  --ink: #0c1222;
  --ink-soft: #151d35;
  --signal: #0ea5e9;
  --signal-dark: #0284c7;
  --gold: #38bdf8;
  --gold-dark: #0ea5e9;
  --accent: #22c55e;
  --steel: #64748b;
  --mist: #f0f9ff;
  --line: #cbd5e1;
  --reject: #f59e0b;
  --accept: #22c55e;
}

body {
  color: var(--ink);
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  padding-bottom: 4.5rem;
  background: #f8fafc;
}

a { text-decoration: none; }

.bg-ink { background: linear-gradient(180deg, #111827 0%, var(--ink) 100%); }

.navbar { border-bottom: 1px solid rgba(255,255,255,0.08); padding: 0.85rem 0; }
.navbar-brand { font-size: 1.35rem; font-weight: 800; }
.navbar-brand .brand-dot { color: var(--signal); }
.navbar .nav-link { color: rgba(255,255,255,0.74); margin-left: 0.75rem; }
.navbar .nav-link:hover { color: #fff; }
.nav-link-main { color: var(--gold) !important; font-weight: 600; }

.btn-signal {
  --bs-btn-bg: var(--signal); --bs-btn-border-color: var(--signal); --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--signal-dark); font-weight: 700;
}

.eyebrow { color: var(--gold); font-size: 0.78rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; }

.store-hero {
  background:
    radial-gradient(circle at 90% 10%, rgba(14,165,233,0.2), transparent 40%),
    radial-gradient(circle at 5% 90%, rgba(34,197,94,0.12), transparent 35%),
    linear-gradient(160deg, #0f172a 0%, var(--ink) 60%, #0c4a6e 100%);
  color: #fff;
  padding: 7.5rem 0 4rem;
}

.store-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 800; }
.store-hero .lead { color: rgba(255,255,255,0.82); max-width: 36rem; }

.search-box {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  display: flex;
  max-width: 480px;
  overflow: hidden;
}
.search-box input {
  background: transparent;
  border: 0;
  color: #fff;
  flex: 1;
  outline: none;
  padding: 0.75rem 1.25rem;
}
.search-box input::placeholder { color: rgba(255,255,255,0.5); }
.search-box button {
  background: var(--signal);
  border: 0;
  color: #fff;
  font-weight: 700;
  padding: 0 1.25rem;
}

.store-toolbar {
  padding: 2rem 0 1rem;
  position: sticky;
  top: 56px;
  background: rgba(248,250,252,0.95);
  backdrop-filter: blur(8px);
  z-index: 100;
  border-bottom: 1px solid var(--line);
}

.category-pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.category-pill {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--steel);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  transition: all 0.15s ease;
}
.category-pill:hover, .category-pill.active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.app-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  padding: 2rem 0 4rem;
}

.app-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.app-card:hover {
  border-color: var(--app-accent, var(--signal));
  box-shadow: 0 16px 40px rgba(15,23,42,0.1);
  color: var(--ink);
  transform: translateY(-4px);
}
.app-card-featured {
  border-top: 3px solid var(--app-accent, var(--signal));
}
.app-badge {
  background: linear-gradient(90deg, var(--app-accent, var(--signal)), color-mix(in srgb, var(--app-accent) 70%, #fff));
  border-radius: 999px;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.65rem;
  position: absolute;
  right: 1rem;
  top: 1rem;
}
.app-icon {
  align-items: center;
  background: color-mix(in srgb, var(--app-accent, var(--signal)) 12%, #fff);
  border-radius: 1rem;
  color: var(--app-accent, var(--signal));
  display: flex;
  font-size: 1.75rem;
  height: 3.5rem;
  justify-content: center;
  margin-bottom: 1rem;
  width: 3.5rem;
}
.app-category { color: var(--steel); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.app-card h3 { font-size: 1.15rem; font-weight: 800; margin: 0.35rem 0 0.5rem; }
.app-tagline { color: var(--steel); flex: 1; font-size: 0.9rem; line-height: 1.5; margin-bottom: 1rem; }
.app-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 1rem; }
.app-tag { background: var(--mist); border-radius: 999px; color: var(--ink-soft); font-size: 0.72rem; font-weight: 600; padding: 0.2rem 0.55rem; }
.app-cta { color: var(--app-accent, var(--signal)); font-size: 0.875rem; font-weight: 700; }

.ai-target-section {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  margin: 2rem 0 4rem;
  overflow: hidden;
}
.ai-target-header {
  background: linear-gradient(90deg, var(--ink) 0%, #1e3a5f 100%);
  color: #fff;
  padding: 2rem;
}
.ai-target-header h2 { font-size: 1.5rem; font-weight: 800; margin-bottom: 0.5rem; }
.ai-target-body { display: grid; gap: 0; grid-template-columns: 1fr 1fr; }
@media (max-width: 767px) { .ai-target-body { grid-template-columns: 1fr; } }
.ai-target-col { padding: 1.75rem 2rem; }
.ai-target-col.accept { background: #f0fdf4; border-right: 1px solid var(--line); }
.ai-target-col.reject { background: #fffbeb; }
.ai-target-col h3 { font-size: 1rem; font-weight: 800; margin-bottom: 1rem; }
.ai-target-col.accept h3 { color: #15803d; }
.ai-target-col.reject h3 { color: #b45309; }
.ai-target-col ul { color: var(--steel); font-size: 0.92rem; margin: 0; padding-left: 1.1rem; }
.ai-target-col li { margin-bottom: 0.45rem; }

.call-to-action {
  background: linear-gradient(110deg, rgba(12,18,34,0.96), rgba(21,29,53,0.92)),
    url("https://images.unsplash.com/photo-1551288049-bebda4e38f71?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  color: #fff;
  padding: 5rem 0;
}
.lead-form {
  backdrop-filter: blur(6px);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 0.75rem;
  padding: 1.5rem;
}
.lead-form .form-label { color: rgba(255,255,255,0.85); }

.footer { background: var(--ink); color: rgba(255,255,255,0.55); padding: 2rem 0; }
.footer a:hover { color: #fff !important; }

.sticky-lead-bar {
  background: var(--ink);
  border-top: 2px solid var(--signal);
  bottom: 0;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.25);
  left: 0;
  position: fixed;
  right: 0;
  z-index: 1050;
}
.sticky-lead-inner {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1140px;
  padding: 0.65rem 1rem;
}
.sticky-lead-text { color: rgba(255,255,255,0.9); font-size: 0.9rem; font-weight: 600; }
.sticky-lead-actions { display: flex; gap: 0.5rem; align-items: center; }
.sticky-lead-phone { color: var(--gold); font-weight: 700; }
.sticky-lead-btn { background: var(--signal); border-radius: 0.35rem; color: #fff; font-size: 0.875rem; font-weight: 700; padding: 0.45rem 1rem; }

/* Subpages */
.page-hero {
  background: linear-gradient(115deg, rgba(12,18,34,0.94), rgba(21,29,53,0.88)),
    url("https://images.unsplash.com/photo-1586528116311-ad8dd3c8310d?auto=format&fit=crop&w=1800&q=80");
  background-size: cover;
  color: #fff;
  margin-top: 56px;
  padding: 4rem 0 3rem;
}
.page-hero h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; }
.subpage-content { padding: 4rem 0; }
.content-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  margin-bottom: 1.25rem;
  padding: 2rem;
}
.content-card h2 { border-left: 4px solid var(--signal); font-size: 1.25rem; padding-left: 0.75rem; }
.feature-pill {
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 999px;
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0.4rem 0.4rem 0;
  padding: 0.35rem 0.85rem;
}
.sidebar-card {
  background: var(--ink-soft);
  border-radius: 0.75rem;
  color: #fff;
  padding: 1.5rem;
  position: sticky;
  top: 5.5rem;
}
.sidebar-card a { border-bottom: 1px solid rgba(255,255,255,0.1); color: rgba(255,255,255,0.85); display: block; padding: 0.5rem 0; }
.sidebar-card a:hover { color: var(--gold); }
.subpage-cta {
  background: linear-gradient(135deg, var(--ink), var(--ink-soft));
  border-radius: 0.75rem;
  color: #fff;
  padding: 2rem;
}
.pain-card {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  border-radius: 0.35rem;
  padding: 1.25rem;
}
.text-signal { color: var(--signal-dark); }
.customer-filter-msg.text-success { color: #86efac !important; }
.customer-filter-msg.text-warning { color: #fcd34d !important; }

.pain-hub {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 2rem 0 1.5rem;
}
.pain-hub-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.pain-hub-grid a {
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  transition: background 0.15s, border-color 0.15s;
}
.pain-hub-grid a:hover {
  background: #e0f2fe;
  border-color: var(--signal);
  color: var(--signal-dark);
}
.pain-hub-grid a:last-child {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.pain-hub-grid a:last-child:hover {
  background: var(--ink-soft);
  border-color: var(--ink-soft);
  color: #fff;
}