:root {
  --ink: #16181d;
  --ink-soft: #4b5563;
  --muted: #6b7280;
  --line: #e6e7eb;
  --bg: #fbfbf9;
  --bg-alt: #f3f4f1;
  --accent: #1a56db;
  --accent-ink: #1445b0;
  --card: #ffffff;
  --radius: 14px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { max-width: 760px; }
.center { text-align: center; }

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

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 251, 249, 0.86);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { font-weight: 700; letter-spacing: .2px; font-size: 16px; }
.brand .dot { color: var(--accent); margin: 0 2px; }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 15px; color: var(--ink-soft); }
.nav-links a { transition: color .18s; }
.nav-links a:hover { color: var(--accent); }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff;
  padding: 12px 22px; border-radius: 10px;
  font-weight: 600; font-size: 15px; line-height: 1;
  transition: background .18s, transform .12s;
  border: 1px solid transparent;
}
.btn:hover { background: var(--accent-ink); transform: translateY(-1px); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover { background: #fff; border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }

/* ---- hero ---- */
.hero { padding: 92px 0 76px; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .16em; font-size: 12.5px;
  font-weight: 700; color: var(--accent); margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.18; letter-spacing: -0.02em; font-weight: 800;
  margin-bottom: 22px; max-width: 15em;
}
.hl { color: var(--accent); }
.lead { font-size: clamp(16px, 2.1vw, 19px); color: var(--ink-soft); max-width: 40em; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero-points {
  display: flex; flex-wrap: wrap; gap: 10px 28px;
  margin-top: 30px; list-style: none; color: var(--muted); font-size: 14.5px;
}
.hero-points li { position: relative; padding-left: 20px; }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}

/* ---- sections ---- */
.section { padding: 76px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 {
  font-size: clamp(24px, 3.4vw, 34px); letter-spacing: -0.015em;
  font-weight: 800; margin-bottom: 34px; max-width: 20em;
}

/* ---- service cards ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 26px;
  display: flex; flex-direction: column;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover { box-shadow: 0 14px 40px -18px rgba(16, 34, 74, .25); transform: translateY(-3px); border-color: #d6dae4; }
.card-tag {
  align-self: flex-start; font-size: 12px; font-weight: 700; letter-spacing: .08em;
  color: var(--accent); background: rgba(26, 86, 219, .09);
  padding: 4px 10px; border-radius: 6px; margin-bottom: 16px;
}
.card h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; letter-spacing: -0.01em; }
.card p { color: var(--ink-soft); font-size: 14.5px; }
.card ul { margin: 16px 0 0; list-style: none; }
.card li {
  position: relative; padding-left: 20px; font-size: 14px; color: var(--ink-soft);
  margin-bottom: 8px;
}
.card li::before {
  content: ""; position: absolute; left: 2px; top: 10px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}
.price { margin-top: auto; padding-top: 20px; font-size: 20px; font-weight: 800; color: var(--ink); }
.price span { font-size: 13px; font-weight: 500; color: var(--muted); }

/* ---- free vs paid ---- */
.fvp { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-bottom: 22px; }
.fvp-col {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; background: var(--card);
}
.fvp-col.fvp-free { background: var(--bg-alt); }
.fvp-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.fvp-head h3 { font-size: 18px; font-weight: 700; }
.fvp-badge {
  font-size: 12px; font-weight: 800; letter-spacing: .05em;
  padding: 4px 10px; border-radius: 6px;
}
.fvp-badge.free { color: #0f766e; background: rgba(15,118,110,.1); }
.fvp-badge.paid { color: var(--accent); background: rgba(26,86,219,.1); }
.fvp-col p { color: var(--ink-soft); font-size: 14.5px; margin-bottom: 14px; }
.fvp-col ul { list-style: none; margin: 0 0 20px; }
.fvp-col li { position: relative; padding-left: 20px; font-size: 14px; color: var(--ink-soft); margin-bottom: 8px; }
.fvp-col li::before { content: "·"; position: absolute; left: 4px; color: var(--accent); font-weight: 800; }
.fvp-slogan {
  text-align: center; font-size: 16px; font-weight: 600; color: var(--ink);
  max-width: 720px; margin: 0 auto; padding: 18px 22px;
  border-radius: var(--radius); background: rgba(26,86,219,.06);
  border: 1px solid rgba(26,86,219,.16); line-height: 1.8;
}

/* ---- proof ---- */
.proof-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
.proof-text p { color: var(--ink-soft); margin-bottom: 18px; }
.proof-list { list-style: none; margin: 0 0 26px; }
.proof-list li {
  position: relative; padding-left: 22px; margin-bottom: 14px; color: var(--ink-soft); font-size: 15px;
}
.proof-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800;
}
.proof-stats { display: flex; flex-direction: column; gap: 16px; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px; display: flex; align-items: baseline; gap: 14px;
}
.stat .num { font-size: 30px; font-weight: 800; color: var(--accent); letter-spacing: -0.02em; }
.stat .lbl { color: var(--ink-soft); font-size: 14.5px; }

/* ---- steps ---- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px 44px; }
.steps li { display: flex; gap: 18px; }
.steps .n {
  font-size: 15px; font-weight: 800; color: var(--accent);
  border: 1px solid rgba(26, 86, 219, .3); border-radius: 8px;
  min-width: 46px; height: 46px; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.steps h4 { font-size: 17px; margin-bottom: 6px; }
.steps p { color: var(--ink-soft); font-size: 14.5px; }

/* ---- boundary ---- */
.boundary { list-style: none; }
.boundary li {
  position: relative; padding-left: 26px; margin-bottom: 18px; color: var(--ink-soft); font-size: 15.5px;
}
.boundary li::before {
  content: "—"; position: absolute; left: 0; color: var(--accent); font-weight: 800;
}
.boundary strong { color: var(--ink); }

/* ---- final cta ---- */
.cta-final { padding: 88px 0; }
.cta-final h2 { margin-bottom: 14px; }
.lead.center { margin: 0 auto 34px; }
.contact-box {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
  margin: 0 auto 34px; max-width: 620px;
}
.contact-item {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; gap: 6px; text-align: left;
}
.contact-item .lbl { font-size: 12.5px; color: var(--muted); font-weight: 700; letter-spacing: .05em; }
.contact-item .val { font-size: 15.5px; font-weight: 600; }

/* ---- service hours ---- */
.hours {
  margin: 0 auto 30px; max-width: 620px;
  padding: 16px 22px; border-radius: var(--radius);
  background: rgba(26, 86, 219, .06);
  border: 1px solid rgba(26, 86, 219, .16);
  color: var(--ink-soft); font-size: 14.5px; line-height: 1.9; text-align: center;
}
.hours strong { color: var(--ink); font-weight: 700; }

/* ---- footer ---- */
.foot { border-top: 1px solid var(--line); padding: 26px 0; }
.foot-inner { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 14px; }
.foot-inner a:hover { color: var(--accent); }

/* ---- responsive ---- */
@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr; gap: 30px; }
  .steps { grid-template-columns: 1fr; }
  .contact-box { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; }
  .nav-links a:not(.btn) { display: none; }
}
@media (max-width: 520px) {
  .hero { padding: 64px 0 52px; }
  .section { padding: 54px 0; }
}