:root {
  --black: #111;
  --orange: #ff5c00;
  --text: #1a1a1a;
  --muted: #5a5a5a;
  --bg: #fff;
  --soft: #f6f6f6;
  --line: #e8e8e8;
  --max: 1040px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  z-index: 100;
}

.header .wrap {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--black);
  font-weight: 700;
  font-size: 1.1rem;
}

.brand img { width: 28px; height: 28px; }

nav { display: flex; gap: 32px; }

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

nav a:hover { color: var(--orange); }

.menu {
  display: none;
  background: none;
  border: 0;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.menu span {
  width: 20px;
  height: 2px;
  background: var(--black);
  display: block;
  transition: 0.2s;
}

/* Hero */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero-logo {
  width: min(300px, 75%);
  height: auto;
  margin: 0 auto 28px;
  display: block;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 480px;
  margin: 0 auto 32px;
}

.hero-links {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  transition: 0.15s;
}

.btn.solid {
  background: var(--black);
  color: #fff;
}

.btn.solid:hover { background: #2a2a2a; }

.btn.outline {
  background: #fff;
  color: var(--black);
  border: 1.5px solid #ddd;
}

.btn.outline:hover { border-color: var(--black); }

/* Overview */
.overview {
  padding: 0 0 80px;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.overview-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px 28px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.overview-card:hover {
  border-color: #ccc;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
}

.overview-card img {
  width: 180px;
  height: auto;
  margin-bottom: 20px;
}

.overview-card h2 {
  font-size: 1.35rem;
  margin-bottom: 4px;
}

.overview-card .tag {
  color: var(--orange);
  font-weight: 600;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.overview-card p {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.overview-card .more {
  color: var(--black);
  font-weight: 600;
  font-size: 0.9rem;
}

.overview-card:hover .more { color: var(--orange); }

/* Detail sections */
.detail {
  padding: 80px 0;
  border-top: 1px solid var(--line);
}

.detail.alt { background: var(--soft); }

.detail-head {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 48px;
}

.detail-logo {
  width: 200px;
  height: auto;
  margin-bottom: 12px;
}

.detail-head .tag {
  color: var(--orange);
  font-weight: 600;
  font-size: 1.05rem;
}

.detail-desc {
  color: var(--muted);
  font-size: 1.05rem;
  padding-top: 8px;
}

/* Process */
.process {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 40px;
  margin-bottom: 40px;
}

.process-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.process-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: var(--black);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.process-item h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.process-item p {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

.feature {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 24px;
}

.feature h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature p {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Note */
.note {
  max-width: 680px;
  padding: 18px 22px;
  background: #fff;
  border-left: 3px solid var(--orange);
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.note strong { color: var(--text); }

/* Pricing */
.pricing {
  padding: 80px 0;
  text-align: center;
  border-top: 1px solid var(--line);
  background: var(--soft);
}

.pricing h2 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.pricing-lead {
  color: var(--muted);
  margin-bottom: 32px;
}

.pricing-box {
  max-width: 480px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 36px 32px;
}

.pricing-box p {
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.pricing-emails {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.pricing-emails a {
  color: var(--orange);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
}

.pricing-emails a:hover { text-decoration: underline; }

/* Contact */
.contact {
  padding: 80px 0;
  text-align: center;
  border-top: 1px solid var(--line);
}

.contact h2 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.contact p { color: var(--muted); margin-bottom: 24px; }

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  margin-bottom: 28px;
}

.contact-list a {
  color: var(--orange);
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
}

.contact-list a:hover { text-decoration: underline; }

.social a {
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.95rem;
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
}

.social a:hover { border-color: var(--black); }

/* Footer */
footer {
  background: var(--black);
  color: #fff;
  padding: 36px 0;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-brand img { width: 28px; height: 28px; }

.footer-name { font-weight: 700; }

.footer-tag { font-size: 0.85rem; opacity: 0.65; }

.footer-info { text-align: right; font-size: 0.9rem; }

.footer-info .company { font-weight: 600; margin: 2px 0; }

.footer-info .reg { font-size: 0.8rem; opacity: 0.65; }

/* Responsive */
@media (max-width: 800px) {
  .overview-grid,
  .process,
  .features,
  .detail-head {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .detail-head { margin-bottom: 32px; }
  .detail-logo { width: 160px; }
}

@media (max-width: 640px) {
  nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--line);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    transition: 0.2s;
  }

  nav.active {
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  nav a {
    padding: 14px 24px;
    border-bottom: 1px solid var(--line);
  }

  nav a:last-child { border: 0; }

  .menu { display: flex; }

  .menu.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  .menu.active span:nth-child(2) { opacity: 0; }
  .menu.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

  .hero { padding: 56px 0 48px; }
  .hero h1 { font-size: 1.85rem; }
  .detail, .contact, .pricing { padding: 56px 0; }
  .overview { padding-bottom: 56px; }

  footer .wrap { flex-direction: column; text-align: center; }
  .footer-info { text-align: center; }
  .footer-brand { flex-direction: column; gap: 8px; }
}