:root {
  --bg: #f7fafc;
  --surface: #ffffff;
  --surface-alt: #eef4ff;
  --text: #0f172a;
  --muted: #475569;
  --line: #dbe4f0;
  --primary: #1d4ed8;
  --primary-dark: #1e40af;
  --accent: #0ea5e9;
  --success: #16a34a;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(var(--container), calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar .inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 0; }
.brand-title { font-weight: 800; letter-spacing: -0.02em; font-size: 1.15rem; }
.brand-sub { font-size: 0.8rem; color: var(--muted); }
.nav { display: flex; align-items: center; gap: 22px; font-size: 0.95rem; color: var(--muted); }
.nav a:hover { color: var(--text); }
.cta-row { display: flex; align-items: center; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: 999px; padding: 13px 22px; border: 1px solid transparent;
  font-weight: 700; transition: 0.2s ease; cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { border-color: var(--line); background: #fff; color: var(--text); }
.btn-secondary:hover { background: #f8fafc; }
.hero {
  padding: 72px 0 48px;
  background:
    radial-gradient(circle at top left, rgba(29,78,216,.11), transparent 30%),
    linear-gradient(180deg, #eff6ff 0%, rgba(255,255,255,0) 88%);
}
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 42px; align-items: center; }
.kicker {
  display: inline-block; background: #dbeafe; color: var(--primary-dark); border-radius: 999px;
  padding: 8px 14px; font-size: 0.78rem; text-transform: uppercase; letter-spacing: .14em; font-weight: 800;
}
.hero h1, .page-hero h1 { font-size: clamp(2.4rem, 4vw, 4.4rem); line-height: 1.06; margin: 18px 0 16px; letter-spacing: -0.04em; }
.lead { font-size: 1.08rem; color: var(--muted); max-width: 760px; }
.pill-grid, .trust-grid { display: grid; gap: 14px; }
.pill-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 24px; }
.trust-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.pill, .trust-card, .card, .service-card, .review-card, .project-card, .faq-item, .contact-card, .quote-card, .seo-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.pill { padding: 16px 18px; font-weight: 600; color: #1e3a8a; }
.card { padding: 26px; }
.hero-card { padding: 24px; }
.hero-card h2 { margin: 0 0 6px; font-size: 1.7rem; letter-spacing: -0.02em; }
.info-list { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 12px; color: var(--muted); }
.info-list li { display: flex; align-items: center; gap: 10px; }
.icon-badge {
  width: 42px; height: 42px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center;
  background: #dbeafe; color: var(--primary-dark); font-weight: 900;
}
.section { padding: 68px 0; }
.section-alt { background: #f8fbff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section h2 { font-size: clamp(1.9rem, 2.2vw, 3rem); line-height: 1.1; margin: 0 0 12px; letter-spacing: -0.03em; }
.section-head { max-width: 780px; margin-bottom: 28px; }
.section-head p { color: var(--muted); }
.service-grid, .review-grid, .project-grid, .seo-grid { display: grid; gap: 22px; }
.service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.review-grid, .project-grid, .seo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.service-card { padding: 26px; }
.service-card h3, .project-card h3, .review-card h3 { margin: 0 0 10px; font-size: 1.3rem; }
.service-card p, .project-card p, .review-card p { color: var(--muted); }
.service-card ul { margin: 18px 0 0; padding-left: 18px; color: var(--muted); }
.service-card li { margin-bottom: 8px; }
.link-arrow { color: var(--primary); font-weight: 700; display: inline-block; margin-top: 18px; }
.project-photo {
  aspect-ratio: 16 / 10; border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #dbeafe, #e2e8f0); display: flex; align-items: center; justify-content: center;
  color: #475569; font-weight: 700;
}
.review-stars { color: #f59e0b; font-size: 1rem; letter-spacing: 2px; }
.quote-wrap { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 24px; align-items: start; }
.quote-card, .contact-card { padding: 28px; }
.form-grid { display: grid; gap: 16px; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
label { display: grid; gap: 8px; font-weight: 600; font-size: 0.95rem; }
input, textarea, select {
  width: 100%; border: 1px solid #cbd5e1; border-radius: 14px; background: #fff; padding: 14px 16px; font: inherit; color: var(--text);
}
textarea { min-height: 140px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(37,99,235,.14); border-color: var(--primary); }
.small { font-size: 0.88rem; color: var(--muted); }
.area-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.area-card, .faq-item, .seo-card { background: #fff; border: 1px solid #bfdbfe; border-radius: 18px; padding: 22px; }
.page-hero { padding: 52px 0 24px; background: linear-gradient(180deg, #eff6ff 0%, rgba(255,255,255,0) 100%); }
.breadcrumbs { color: var(--muted); font-size: 0.92rem; }
.content-wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 28px; }
.content-panel { padding: 30px; }
.footer { background: #0f172a; color: #cbd5e1; padding: 26px 0; }
.footer .inner { display: flex; justify-content: space-between; gap: 24px; align-items: center; }
.footer a { color: #fff; }
.list-check { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.list-check li::before { content: "✔"; color: var(--success); margin-right: 10px; font-weight: 800; }
.notice {
  background: #eff6ff; border: 1px solid #bfdbfe; color: #1e3a8a; border-radius: 18px; padding: 16px 18px; font-size: 0.95rem;
}
.mobile-menu-toggle { display: none; }
.center { text-align: center; }
@media (max-width: 980px) {
  .hero-grid, .quote-wrap, .content-wrap, .service-grid, .review-grid, .project-grid, .seo-grid, .area-grid, .trust-grid { grid-template-columns: 1fr; }
  .pill-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .mobile-menu-toggle { display: inline-flex; }
  .topbar.open .nav { display: grid; position: absolute; top: 72px; left: 16px; right: 16px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 16px; box-shadow: var(--shadow); }
  .topbar .inner { position: relative; }
}
@media (max-width: 720px) {
  .form-row { grid-template-columns: 1fr; }
  .cta-row { display: none; }
  .section { padding: 52px 0; }
  .hero { padding-top: 48px; }
  .hero h1, .page-hero h1 { font-size: 2.25rem; }
  .footer .inner { flex-direction: column; align-items: flex-start; }
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: #fff;
  border: 1px solid #dbe4f0;
  border-radius: 24px;
  overflow: hidden;
}

.project-photo {
  height: 260px;
  background: #eaf1fb;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.project-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}