:root {
  --bg: #f6f9fc;
  --surface: #ffffff;
  --surface-2: #eef4fb;
  --text: #112033;
  --muted: #607086;
  --line: #d9e4f0;
  --brand: #0d6efd;
  --brand-dark: #0a58ca;
  --accent: #15b79e;
  --shadow: 0 12px 30px rgba(12, 33, 66, 0.08);
  --radius: 18px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 2rem)); margin: 0 auto; }
.topbar {
  background: #0f172a;
  color: #d7e3f7;
  font-size: 0.92rem;
}
.topbar .container {
  display: flex; justify-content: space-between; gap: 1rem; padding: 0.65rem 0;
  flex-wrap: wrap;
}
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(217,228,240,0.9);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 0;
}
.brand { display: inline-flex; align-items: center; gap: 0.9rem; font-weight: 800; }
.brand img { width: 42px; height: 42px; }
.brand small { display: block; font-size: 0.76rem; font-weight: 600; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }
.brand span { display: block; font-size: 1.15rem; }
.nav { display: flex; align-items: center; gap: 1.2rem; }
.nav a { color: #22344a; font-weight: 600; }
.nav a:hover, .nav a.active { color: var(--brand); }
.menu-toggle { display: none; background: none; border: 0; font-size: 1.7rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.92rem 1.3rem; border-radius: 999px; font-weight: 700; border: 1px solid transparent;
  transition: 0.2s ease; cursor: pointer;
}
.btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-1px); }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--line); }
.btn-secondary:hover { border-color: var(--brand); color: var(--brand); }
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 0% 0%, rgba(13,110,253,0.10), transparent 35%),
    radial-gradient(circle at 100% 10%, rgba(21,183,158,0.10), transparent 25%),
    linear-gradient(180deg, #ffffff 0%, #f6f9fc 100%);
}
.hero .container { display: grid; grid-template-columns: 1.2fr 0.95fr; gap: 3rem; padding: 5rem 0 4rem; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.45rem 0.8rem; border-radius: 999px;
  background: rgba(13,110,253,0.08); color: var(--brand); font-weight: 700; font-size: 0.86rem;
}
.hero h1, .page-hero h1 { font-size: clamp(2.4rem, 4vw, 4.2rem); line-height: 1.08; margin: 1rem 0 1rem; }
.hero p, .page-hero p { color: var(--muted); font-size: 1.05rem; max-width: 62ch; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.8rem; }
.hero-grid {
  display: grid; grid-template-columns: repeat(2,1fr); gap: 1rem;
}
.card, .stat, .feature, .info-block, .timeline-item, .service-panel, .case-card, .contact-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.card { padding: 1.25rem; }
.stat { padding: 1.35rem; }
.stat strong { font-size: 1.9rem; display: block; }
.stat span { color: var(--muted); }
.section { padding: 4.6rem 0; }
.section-sm { padding: 3rem 0; }
.section-title { max-width: 760px; margin-bottom: 2rem; }
.section-title h2 { font-size: clamp(1.9rem, 3vw, 3rem); line-height: 1.12; margin: 0 0 0.7rem; }
.section-title p { color: var(--muted); margin: 0; }
.grid-3, .grid-4, .service-grid, .case-grid, .industry-grid, .footer-grid { display: grid; gap: 1.25rem; }
.grid-3, .service-grid, .case-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4, .industry-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature, .info-block, .service-panel, .case-card, .contact-card { padding: 1.5rem; }
.feature h3, .service-panel h3, .case-card h3, .info-block h3 { margin-top: 0.8rem; margin-bottom: 0.5rem; }
.feature p, .service-panel p, .case-card p, .info-block p, .contact-card p { color: var(--muted); }
.icon {
  width: 48px; height: 48px; border-radius: 14px; display: inline-grid; place-items: center;
  background: rgba(13,110,253,0.08); color: var(--brand); font-size: 1.3rem; font-weight: 800;
}
.band {
  background: linear-gradient(135deg, #0f172a 0%, #102c5a 100%); color: #fff;
}
.band .section-title p, .band .service-panel p, .band .case-card p { color: #d1ddf0; }
.band .service-panel, .band .case-card { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.12); box-shadow: none; }
.page-hero { padding: 4.2rem 0 3rem; background: linear-gradient(180deg, #ffffff 0%, #eef5fb 100%); }
.breadcrumbs { color: var(--muted); font-size: 0.95rem; }
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: start;
}
.list { padding: 0; margin: 1rem 0 0; list-style: none; }
.list li { padding: 0.65rem 0 0.65rem 1.8rem; position: relative; border-bottom: 1px solid var(--line); }
.list li::before { content: ""; position: absolute; left: 0; top: 1.18rem; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.timeline { display: grid; gap: 1rem; }
.timeline-item { padding: 1.25rem; }
.timeline-item strong { display: block; margin-bottom: 0.4rem; }
.cta-box {
  padding: 2rem; border-radius: 24px; background: linear-gradient(135deg, #0d6efd 0%, #123b7a 100%); color: #fff; box-shadow: var(--shadow);
}
.cta-box p { color: #d9e6f8; }
.contact-form { display: grid; gap: 0.95rem; }
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 0.95rem 1rem; font: inherit; background: #fff;
}
.contact-form textarea { min-height: 150px; resize: vertical; }
.site-footer { background: #0f172a; color: #d1ddf0; padding: 3.2rem 0 1.5rem; }
.site-footer a { color: #e6effd; }
.footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; }
.footer-note { border-top: 1px solid rgba(255,255,255,0.09); margin-top: 2rem; padding-top: 1.2rem; color: #9fb2cc; font-size: 0.92rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1rem; }
.tag { padding: 0.5rem 0.8rem; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: #28405d; font-size: 0.9rem; font-weight: 600; }
.notice { background: #eef7ff; border: 1px solid #cfe2ff; color: #174171; padding: 1rem 1.1rem; border-radius: 14px; }
@media (max-width: 960px) {
  .hero .container, .split, .grid-3, .grid-4, .service-grid, .case-grid, .industry-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr 1fr; }
  .nav {
    position: absolute; left: 0; right: 0; top: calc(100% + 1px); background: #fff; border-bottom: 1px solid var(--line);
    padding: 1rem; display: none; flex-direction: column; align-items: flex-start;
  }
  .nav.open { display: flex; }
  .menu-toggle { display: block; }
}
@media (max-width: 640px) {
  .hero .container { padding: 3.7rem 0 3rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .topbar .container, .nav-wrap { align-items: flex-start; }
}