:root {
  --yellow: #ffcc00;
  --red: #d40511;
  --text: #1a1a1a;
  --muted: #666;
  --bg: #f7f7f7;
  --white: #ffffff;
  --line: #e9e9e9;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --radius: 18px;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--white);
}

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

.topbar {
  background: var(--yellow);
  color: var(--text);
  font-size: 14px;
  padding: 10px 20px;
}

.topbar-inner, .nav-inner, .section, .footer-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.navbar {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 800;
}

.logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--yellow), #ffdb4d);
  display: grid;
  place-items: center;
  font-weight: 900;
  color: var(--red);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  font-size: 24px;
}

.logo-text {
  font-size: 24px;
  font-weight: 900;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-weight: 600;
  flex-wrap: wrap;
}

.nav-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: .2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--red);
  color: var(--white);
}

.btn-primary:hover { transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--text);
  color: var(--text);
}

.full-btn { width: 100%; }

.hero {
  background:
    radial-gradient(circle at top right, rgba(255,255,255,0.35), transparent 28%),
    linear-gradient(90deg, rgba(255,204,0,0.96) 0%, rgba(255,204,0,0.92) 45%, rgba(255,204,0,0.76) 100%);
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: 60px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
}

.hero::before {
  content: "";
  position: absolute;
  right: 120px;
  bottom: -120px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(212,5,17,0.08);
}

.hero-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 70px 20px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 64px;
  line-height: 1.02;
  margin: 0 0 16px;
  max-width: 700px;
}

.hero p {
  font-size: 19px;
  line-height: 1.7;
  max-width: 620px;
  margin: 0 0 28px;
  color: #2a2a2a;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 26px;
}

.badge {
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 700;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.track-card {
  background: rgba(255,255,255,0.96);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.track-card h3 {
  margin: 0 0 10px;
  font-size: 26px;
}

.track-card p {
  font-size: 15px;
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.6;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 22px;
}

.quick-item {
  background: #fff7d1;
  border-radius: 16px;
  padding: 18px;
  font-weight: 700;
  min-height: 96px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.section {
  padding: 80px 20px;
}

.section-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.section-title h2 {
  margin: 0;
  font-size: 40px;
  line-height: 1.1;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  max-width: 540px;
  line-height: 1.7;
}

.services { background: var(--bg); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
  min-height: 250px;
}

.icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: #fff2a8;
  font-size: 24px;
  margin-bottom: 18px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 26px;
}

.stat {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
  background: var(--white);
}

.stat strong {
  font-size: 34px;
  display: block;
  margin-bottom: 6px;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.flow-step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
}

.flow-step .num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--red);
  color: var(--white);
  display: grid;
  place-items: center;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta {
  background: linear-gradient(90deg, var(--yellow), #ffe88c);
  border-radius: 30px;
  padding: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta h3 {
  margin: 0 0 8px;
  font-size: 36px;
}

.cta p {
  margin: 0;
  color: #333;
  line-height: 1.7;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

footer {
  background: #111;
  color: rgba(255,255,255,0.85);
  margin-top: 80px;
}

.footer-inner {
  padding: 54px 20px 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 30px;
  margin-bottom: 34px;
}

.footer-col h4 {
  color: #fff;
  margin: 0 0 14px;
  font-size: 18px;
}

.footer-col a, .footer-col div {
  display: block;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.78);
}

.copyright {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 18px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

@media (max-width: 1100px) {
  .hero-wrap { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .topbar {
    font-size: 12px;
    padding: 8px 14px;
  }

  .nav-inner {
    padding: 14px;
  }

  .hero {
    min-height: auto;
  }

  .hero-wrap {
    padding: 34px 14px 42px;
    gap: 18px;
  }

  .hero h1 {
    font-size: 38px;
    line-height: 1.08;
  }

  .hero p {
    font-size: 16px;
    margin-bottom: 20px;
  }

  .hero-badges {
    gap: 8px;
    margin-bottom: 18px;
  }

  .badge {
    font-size: 12px;
    padding: 8px 12px;
  }

  .section {
    padding: 52px 14px;
  }

  .section-title h2 {
    font-size: 30px;
  }

  .card-grid, .quick-grid, .stats, .flow, .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-links { display: none; }
  .nav-actions { display: none; }

  .track-card,
  .cta {
    padding: 22px 18px;
    border-radius: 22px;
  }

  .cta h3 {
    font-size: 28px;
  }

  .hero-buttons,
  .cta-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .hero-buttons .btn,
  .cta-actions .btn,
  .full-btn {
    width: 100%;
  }
}