:root {
  --ink: #0b1f35;
  --ink-soft: #12324f;
  --signal: #2563eb;
  --signal-dark: #1d4ed8;
  --gold: #d4a017;
  --gold-dark: #b38612;
  --accent: #0f766e;
  --steel: #5f6f83;
  --mist: #f4f7fb;
  --line: #dbe3ee;
}

body {
  color: var(--ink);
  font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  padding-bottom: 4rem;
}

a { text-decoration: none; }

.bg-ink { background: linear-gradient(180deg, #12324f 0%, var(--ink) 100%); }

.navbar { border-bottom: 1px solid rgba(255,255,255,0.08); padding: 0.85rem 0; }
.navbar-brand { align-items: center; display: flex; font-size: 1.35rem; font-weight: 800; letter-spacing: 0.04em; }
.navbar-brand .brand-dot { color: var(--signal); }
.navbar-brand:hover { color: #fff; }
.navbar .nav-link { color: rgba(255,255,255,0.74); font-size: 0.95rem; margin-left: 0.75rem; }
.navbar .nav-link:hover, .navbar .nav-link:focus, .navbar .nav-link.active { color: #fff; }
.nav-link-main { color: var(--gold) !important; font-weight: 600; }
.nav-back-home { color: #fff !important; font-weight: 700; padding-left: 0.75rem; }
.nav-back-home::before { content: '← '; color: var(--gold); }

.btn-signal {
  --bs-btn-bg: var(--signal); --bs-btn-border-color: var(--signal); --bs-btn-color: #fff;
  --bs-btn-hover-bg: var(--signal-dark); --bs-btn-hover-border-color: var(--signal-dark);
  --bs-btn-hover-color: #fff; font-weight: 700;
}
.btn-gold {
  --bs-btn-bg: #fff; --bs-btn-border-color: rgba(255,255,255,0.82); --bs-btn-color: var(--ink);
  --bs-btn-hover-bg: #eef4fb; --bs-btn-hover-border-color: #eef4fb;
  --bs-btn-hover-color: var(--ink); font-weight: 700;
}

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

/* ── Hero ── */
.masthead {
  background:
    radial-gradient(circle at 82% 18%, rgba(37,99,235,0.18), transparent 44%),
    radial-gradient(circle at 14% 82%, rgba(15,118,110,0.12), transparent 40%),
    linear-gradient(135deg, #12324f 0%, var(--ink) 58%, #071827 100%);
  padding: 8rem 0 5rem;
}
.min-vh-hero { min-height: 640px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 1.5rem; }
.hero-stat strong { color: var(--signal); display: block; font-size: 1.75rem; font-weight: 800; }
.hero-stat span { color: rgba(255,255,255,0.65); font-size: 0.85rem; }

.hero-console {
  backdrop-filter: blur(8px); background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.16);
  border-radius: 0.5rem; box-shadow: 0 24px 48px rgba(0,0,0,0.28); color: #fff; padding: 1.5rem;
}
.console-header { align-items: center; border-bottom: 1px solid rgba(255,255,255,0.14); display: flex; justify-content: space-between; margin-bottom: 1.25rem; padding-bottom: 1rem; }
.console-header strong { color: var(--signal); font-size: 0.85rem; }
.console-grid { display: grid; gap: 0.75rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.console-grid div { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 0.35rem; padding: 1rem; }
.console-grid small { color: rgba(255,255,255,0.62); display: block; margin-bottom: 0.35rem; }
.console-grid strong { color: var(--signal); font-size: 1.65rem; letter-spacing: 0.04em; }
.console-route { display: grid; gap: 0.4rem; grid-template-columns: repeat(4, 1fr); margin: 1.25rem 0; }
.console-route span { background: linear-gradient(90deg, var(--signal), #38bdf8); border-radius: 2px; display: block; height: 4px; }

/* ── Features ── */
.features-icons { padding: 5rem 0; }
.features-icons .features-icons-item { max-width: 22rem; }
.features-icons .features-icons-icon { color: var(--signal-dark); font-size: 4rem; height: 6rem; }
.features-icons h3 { font-size: 1.35rem; margin-bottom: 1rem; }
.features-icons .lead { color: var(--steel); font-size: 1rem; }

/* ── Product & process sections ── */
.product-section, .process-section { padding: 5rem 0; }
.service-card, .step-card {
  background: #fff; border: 1px solid var(--line); border-radius: 0.75rem;
  box-shadow: 0 10px 28px rgba(11,31,53,0.06); padding: 2rem; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.service-card:hover, .step-card:hover { box-shadow: 0 16px 32px rgba(0,0,0,0.08); transform: translateY(-3px); }
.service-card { border-top: 4px solid var(--signal); }
.service-card i { color: var(--signal-dark); font-size: 2.4rem; }
.service-card h3, .step-card h3 { font-size: 1.2rem; margin: 1rem 0 0.75rem; }
.service-card p, .step-card p { color: var(--steel); margin-bottom: 0; }

/* ── SEO link cards ── */
.seo-link-card {
  background: var(--mist); border: 1px solid var(--line); border-radius: 0.75rem; color: var(--ink);
  display: block; height: 100%; padding: 1.25rem; transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.seo-link-card:hover { border-color: var(--signal-dark); box-shadow: 0 12px 24px rgba(0,0,0,0.06); color: var(--ink); }
.seo-link-card strong, .seo-link-card span { display: block; }
.seo-link-card span { color: var(--steel); font-size: 0.95rem; margin-top: 0.5rem; }

/* ── Step cards ── */
.step-card span.step-num { color: var(--signal-dark); font-family: Consolas, monospace; font-size: 0.95rem; font-weight: 800; letter-spacing: 0.12em; }
.step-card .step-day { background: var(--signal); border-radius: 999px; color: #fff; display: inline-block; font-size: 0.75rem; font-weight: 700; margin-bottom: 0.5rem; padding: 0.2rem 0.65rem; }
.solution-links { border-top: 1px solid var(--line); padding-top: 2rem; }

/* ── Pain grid ── */
.pain-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.pain-card {
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--signal);
  border-radius: 0.35rem; padding: 1.25rem; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.pain-card:hover { box-shadow: 0 12px 28px rgba(0,0,0,0.07); transform: translateY(-2px); }
.pain-card .pain-icon { color: var(--signal); font-size: 1.6rem; margin-bottom: 0.5rem; }
.pain-card h3 { font-size: 1rem; margin-bottom: 0.5rem; }
.pain-card p { color: var(--steel); font-size: 0.9rem; margin-bottom: 0; }

/* ── Stats bar ── */
.stats-bar { background: linear-gradient(90deg, var(--ink) 0%, var(--ink-soft) 100%); padding: 3rem 0; }
.stat-item { text-align: center; }
.stat-item strong { color: var(--signal); display: block; font-size: 2.5rem; font-weight: 800; line-height: 1; }
.stat-item em { color: var(--signal); font-size: 1.25rem; font-style: normal; font-weight: 800; vertical-align: super; }
.stat-item span { color: rgba(255,255,255,0.7); display: block; font-size: 0.88rem; margin-top: 0.35rem; }

/* ── Enterprise type pills ── */
.ent-type-card {
  align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 0.75rem;
  box-shadow: 0 8px 20px rgba(11,31,53,0.05); display: flex; flex-direction: column;
  gap: 0.75rem; padding: 1.75rem 1.25rem; text-align: center;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.ent-type-card:hover { border-color: var(--signal); box-shadow: 0 14px 32px rgba(37,99,235,0.12); transform: translateY(-3px); }
.ent-type-card i { color: var(--signal); font-size: 2.2rem; }
.ent-type-card strong { color: var(--ink); font-size: 1rem; font-weight: 700; }
.ent-type-card p { color: var(--steel); font-size: 0.88rem; margin: 0; }

/* ── CTA / form ── */
.call-to-action {
  background: linear-gradient(110deg, var(--ink) 0%, var(--ink-soft) 100%);
  padding: 5.5rem 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: 0.5rem; padding: 1.5rem;
}
.lead-form .form-label { color: rgba(255,255,255,0.8); font-size: 0.92rem; }

/* ── Footer ── */
.footer { padding: 2.5rem 0 2rem; }
.footer a:hover { color: #fff !important; }
.footer-contact li { margin-bottom: 0.35rem; }
.footer-divider { border-color: rgba(255,255,255,0.12); margin: 1.5rem 0; }

/* ── FAQ ── */
.faq-item { border-bottom: 1px solid var(--line); padding: 1.25rem 0; }
.faq-item h3 { cursor: pointer; font-size: 1.05rem; margin-bottom: 0.5rem; }
.faq-item p { color: var(--steel); font-size: 0.95rem; margin-bottom: 0; }

/* ── Sticky lead bar ── */
.sticky-lead-bar { background: linear-gradient(90deg, var(--ink) 0%, var(--ink-soft) 100%); 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 { align-items: center; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.sticky-lead-phone { color: #93c5fd; font-weight: 700; }
.sticky-lead-btn { background: var(--signal); border-radius: 0.45rem; color: #fff; font-size: 0.875rem; font-weight: 700; padding: 0.45rem 1rem; }
.sticky-lead-btn:hover { background: var(--signal-dark); color: #fff; }

/* ── Lead form two-step ── */
.lead-step .is-invalid { border-color: #ef4444; }
.lead-preview { background: rgba(255,255,255,0.08); border-radius: 0.35rem; padding: 0.65rem 0.85rem; color: rgba(255,255,255,0.75); font-size: 0.88rem; }
.customer-filter-msg { min-height: 1.2em; }

/* ── Pricing ── */
.pricing-card {
  background: #fff; border: 1px solid var(--line); border-radius: 0.75rem;
  box-shadow: 0 10px 28px rgba(11,31,53,0.06); padding: 2rem; position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.pricing-card:hover { box-shadow: 0 16px 40px rgba(0,0,0,0.1); transform: translateY(-4px); }
.pricing-card.featured { border: 2px solid var(--signal); }
.pricing-card .popular-badge {
  background: var(--signal); border-radius: 999px; color: #fff; font-size: 0.75rem; font-weight: 700;
  left: 50%; padding: 0.25rem 1rem; position: absolute; top: -0.75rem; transform: translateX(-50%);
}
.pricing-card .price-amount { color: var(--ink); font-size: 2.5rem; font-weight: 800; line-height: 1; }
.pricing-card .price-amount sup { color: var(--steel); font-size: 1rem; font-weight: 400; vertical-align: super; }
.pricing-card .price-amount sub { color: var(--steel); font-size: 0.9rem; font-weight: 400; }
.pricing-card .price-desc { color: var(--steel); font-size: 0.88rem; }
.pricing-card hr { border-color: var(--line); margin: 1.25rem 0; }
.pricing-card ul { color: var(--steel); font-size: 0.95rem; list-style: none; padding: 0; }
.pricing-card ul li { border-bottom: 1px solid #f1f5f9; padding: 0.45rem 0; }
.pricing-card ul li:last-child { border-bottom: 0; }
.pricing-card ul li i.bi-check-circle-fill { color: #16a34a; margin-right: 0.4rem; }
.pricing-card ul li i.bi-dash-circle { color: #9ca3af; margin-right: 0.4rem; }
.pricing-card .tier-name { color: var(--ink-soft); font-size: 1.2rem; font-weight: 800; margin-bottom: 0.25rem; }
.pricing-card .tier-desc { color: var(--steel); font-size: 0.88rem; margin-bottom: 1.25rem; }

/* ── Keyword tags ── */
.keyword-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.keyword-tags a { background: #fff; border: 1px solid var(--line); border-radius: 2rem; color: var(--ink); font-size: 0.82rem; padding: 0.35rem 0.85rem; }
.keyword-tags a:hover { border-color: var(--signal); color: var(--signal-dark); }

/* ── Comparison table ── */
.comparison-table { border-collapse: separate; border-spacing: 0; width: 100%; }
.comparison-table th { background: var(--ink); color: #fff; font-weight: 700; padding: 0.9rem 1rem; text-align: center; }
.comparison-table th:first-child { text-align: left; }
.comparison-table td { border-bottom: 1px solid var(--line); padding: 0.75rem 1rem; text-align: center; }
.comparison-table td:first-child { color: var(--ink); font-weight: 600; text-align: left; }
.comparison-table tr:last-child td { border-bottom: 0; }
.comparison-table .tms-col { background: rgba(37,99,235,0.05); }
.comparison-table .check { color: #16a34a; font-size: 1.1rem; }
.comparison-table .cross { color: #dc2626; font-size: 1.1rem; }
.comparison-table .partial { color: #d97706; font-size: 0.85rem; }

@media (max-width: 991.98px) {
  .min-vh-hero { min-height: auto; }
  .masthead { padding-top: 7rem; }
}