:root {
  --primary: #1a3a6e;
  --primary-light: #2a5298;
  --accent: #f5a623;
  --text-dark: #1c2b3a;
  --text-muted: #6c757d;
  --bg-light: #f8fafd;
}

/* ── Global ── */
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
}

a { color: inherit; }
a:hover { color: var(--accent); text-decoration: none; }

/* ── Navbar ── */
.navbar-brand span { color: var(--accent); }
.navbar { background: var(--primary) !important; }
.navbar-nav .nav-link { color: rgba(255,255,255,.85) !important; font-weight: 500; }
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: var(--accent) !important; }

/* ── Buttons ── */
.btn-accent {
  background: var(--accent);
  color: #fff;
  border: none;
  font-weight: 600;
  padding: .6rem 1.8rem;
  border-radius: 4px;
  transition: filter .2s;
}
.btn-accent:hover { filter: brightness(1.1); color: #fff; }
.btn-outline-accent {
  border: 2px solid var(--accent);
  color: var(--accent);
  font-weight: 600;
  padding: .55rem 1.6rem;
  border-radius: 4px;
  background: transparent;
  transition: all .2s;
}
.btn-outline-accent:hover { background: var(--accent); color: #fff; }

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 450px; height: 450px;
  border-radius: 50%;
  background: rgba(255,255,255,.04);
}
.hero h1 { font-size: 2.6rem; font-weight: 700; line-height: 1.3; }
.hero p  { font-size: 1.15rem; opacity: .85; }

/* ── Stats strip ── */
.stats-strip { background: var(--primary); color: #fff; padding: 32px 0; }
.stats-strip .stat-num { font-size: 2.2rem; font-weight: 700; color: var(--accent); }
.stats-strip .stat-label { font-size: .9rem; opacity: .8; }

/* ── Section headings ── */
.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: .4rem;
}
.section-subtitle { color: var(--text-muted); margin-bottom: 2.5rem; }
.section-divider {
  width: 50px; height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin: .5rem auto 1.5rem;
}

/* ── Feature cards ── */
.feature-card {
  border: none;
  border-radius: 10px;
  box-shadow: 0 4px 18px rgba(26,58,110,.08);
  transition: transform .25s, box-shadow .25s;
  height: 100%;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: 0 10px 30px rgba(26,58,110,.14); }
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(26,58,110,.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* ── Pricing cards ── */
.pricing-card {
  border-radius: 12px;
  border: 2px solid #e8eef6;
  transition: border-color .2s, transform .2s;
  height: 100%;
}
.pricing-card:hover, .pricing-card.popular {
  border-color: var(--primary);
  transform: translateY(-4px);
}
.pricing-card.popular { box-shadow: 0 12px 36px rgba(26,58,110,.16); }
.price-num { font-size: 2.4rem; font-weight: 700; color: var(--primary); }
.price-unit { font-size: .85rem; color: var(--text-muted); }
.badge-popular {
  background: var(--accent);
  color: #fff;
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 600;
}

/* ── Timeline ── */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute; left: 8px; top: 0; bottom: 0;
  width: 2px; background: #dde4ef;
}
.timeline-item { position: relative; margin-bottom: 2rem; }
.timeline-item::before {
  content: "";
  position: absolute; left: -26px; top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
  box-shadow: 0 0 0 2px var(--primary);
}
.timeline-year { font-size: .8rem; font-weight: 700; color: var(--accent); text-transform: uppercase; }

/* ── Logo wall ── */
.logo-wall .logo-item {
  border: 1px solid #e8eef6;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
  font-weight: 600;
  color: var(--primary);
  background: #fff;
  transition: box-shadow .2s;
}
.logo-wall .logo-item:hover { box-shadow: 0 4px 16px rgba(26,58,110,.12); }

/* ── Contact form ── */
.contact-card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 6px 24px rgba(26,58,110,.1);
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 .2rem rgba(26,58,110,.15);
}

/* ── Footer ── */
footer {
  background: var(--primary);
  color: rgba(255,255,255,.75);
  padding: 48px 0 24px;
}
footer h6 { color: #fff; font-weight: 700; margin-bottom: 1rem; }
footer a { color: rgba(255,255,255,.65); text-decoration: none; }
footer a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 1.2rem;
  margin-top: 2rem;
  font-size: .85rem;
  color: rgba(255,255,255,.5);
}

/* ── Utilities ── */
.bg-light-blue { background: var(--bg-light); }
.text-primary-custom { color: var(--primary) !important; }
.text-accent { color: var(--accent) !important; }