:root {
  --primary: #ff6a00;
  --primary-dark: #d95600;
  --blue: #2855ff;
  --text: #172033;
  --muted: #667085;
  --line: #e8edf5;
  --bg: #f6f8fb;
  --card: #ffffff;
  --shadow: 0 18px 45px rgba(23, 32, 51, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(232, 237, 245, 0.9);
  backdrop-filter: blur(10px);
}

.nav-wrap {
  width: min(1180px, calc(100% - 32px));
  height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 22px;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  background: var(--primary);
  box-shadow: 0 8px 18px rgba(255, 106, 0, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  color: #344054;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 15px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  background: #fff3e8;
}

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  font-size: 24px;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 14% 10%, rgba(255, 106, 0, 0.14), transparent 28%),
    radial-gradient(circle at 86% 20%, rgba(40, 85, 255, 0.14), transparent 32%),
    linear-gradient(180deg, #fff, #f6f8fb);
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 84px 0 76px;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: var(--primary-dark);
  background: #fff3e8;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
}

.hero h1 {
  margin: 22px 0 18px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: -1.5px;
}

.hero-desc {
  max-width: 650px;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #ff8a2a);
  box-shadow: 0 12px 24px rgba(255, 106, 0, 0.25);
}

.btn-secondary {
  color: var(--text);
  background: #fff;
  border-color: var(--line);
}

.hero-panel {
  position: relative;
  padding: 24px;
  border: 1px solid rgba(232, 237, 245, 0.9);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.phone-card {
  padding: 18px;
  border-radius: 24px;
  background: #111827;
  color: #fff;
}

.phone-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #cbd5e1;
  font-size: 13px;
}

.app-sample {
  display: block;
  width: 100%;
  margin-top: 16px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.22);
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.grid {
  display: grid;
  gap: 22px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--card);
  box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
}

.icon {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border-radius: 14px;
  color: var(--primary);
  background: #fff3e8;
  font-weight: 900;
  overflow: hidden;
}

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

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p,
.card li {
  color: var(--muted);
}

.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 70px;
}

.step:before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 24px;
  top: 24px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  border-radius: 50%;
  background: var(--primary);
  font-weight: 800;
}

.page-title {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 74px 0 28px;
}

.page-title h1 {
  margin: 0 0 12px;
  font-size: clamp(32px, 5vw, 52px);
}

.page-title p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.content-card {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto 64px;
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(23, 32, 51, 0.06);
}

.content-card h2 {
  margin-top: 0;
}

.content-card h3 {
  margin-top: 30px;
}

.content-card p,
.content-card li {
  color: #475467;
}

.contact-list {
  display: grid;
  gap: 16px;
  padding: 0;
  list-style: none;
}

.contact-list li {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f9fafb;
}

.cta {
  color: #fff;
  background: linear-gradient(135deg, #172033, #2855ff);
  border-radius: 28px;
  padding: 38px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.cta p {
  color: rgba(255,255,255,0.76);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  gap: 16px;
}

@media (max-width: 860px) {
  .menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links.open {
    display: flex;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 56px 0;
  }

  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .cta,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .phone-card {
    min-height: 360px;
  }
}