:root {
  color-scheme: light;
  --primary: #ff6b2c;
  --primary-dark: #df4c13;
  --secondary: #1b8cff;
  --ink: #1f2937;
  --muted: #667085;
  --soft: #fff7ed;
  --card: rgba(255, 255, 255, 0.86);
  --line: rgba(17, 24, 39, 0.08);
  --shadow: 0 24px 70px rgba(31, 41, 55, 0.12);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(255, 151, 84, 0.22), transparent 26%),
    radial-gradient(circle at 92% 14%, rgba(27, 140, 255, 0.15), transparent 28%),
    linear-gradient(180deg, #fffaf4 0%, #ffffff 38%, #f8fbff 100%);
}
a { color: inherit; text-decoration: none; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(255, 250, 244, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.7);
}
.section-shell, .nav {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}
.nav {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, #ff8a34, #ff4d1f);
  box-shadow: 0 14px 26px rgba(255, 107, 44, 0.3);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 20px; letter-spacing: 0.04em; }
.brand-text em { margin-top: 3px; color: var(--muted); font-style: normal; font-size: 12px; text-transform: uppercase; letter-spacing: 0.18em; }
.nav-links { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: #475467;
  font-weight: 700;
  font-size: 14px;
}
.nav-links a:hover { color: var(--primary-dark); background: #fff2e8; }
.hero {
  min-height: 680px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 54px;
  align-items: center;
  padding: 82px 0 70px;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--primary-dark);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 13px;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: -0.055em;
}
h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}
h3 { margin-bottom: 10px; font-size: 21px; }
.hero-desc, .section-desc, .section-title p, .feature-card p, .process-card p, .security-card p, .contact-section p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 16px;
}
.hero-desc { max-width: 670px; font-size: 18px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 32px 0 26px; }
.primary-btn, .secondary-btn, .contact-links a {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 900;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, #ff8a34, #ff4d1f);
  box-shadow: 0 16px 28px rgba(255, 107, 44, 0.28);
}
.secondary-btn { background: #fff; color: var(--primary-dark); border: 1px solid rgba(255, 107, 44, 0.18); }
.primary-btn:hover, .secondary-btn:hover, .contact-links a:hover { transform: translateY(-2px); }
.trust-row { display: flex; gap: 10px; flex-wrap: wrap; }
.trust-row span {
  padding: 8px 12px;
  border-radius: 999px;
  color: #7a3b16;
  background: rgba(255, 244, 230, 0.95);
  border: 1px solid rgba(255, 146, 83, 0.2);
  font-size: 13px;
  font-weight: 800;
}
.hero-card { position: relative; min-height: 560px; display: grid; place-items: center; }
.phone-mock {
  width: min(360px, 82vw);
  height: 560px;
  padding: 18px;
  border-radius: 42px;
  background: linear-gradient(180deg, #111827, #334155);
  box-shadow: var(--shadow), inset 0 0 0 2px rgba(255,255,255,0.08);
  position: relative;
}
.phone-mock::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 34px;
  background: linear-gradient(180deg, #fff8f1 0%, #fff 100%);
  z-index: 0;
}
.phone-mock > * { position: relative; z-index: 1; }
.phone-top { width: 96px; height: 7px; margin: 0 auto 18px; border-radius: 999px; background: rgba(255,255,255,0.25); }
.mock-banner {
  height: 160px;
  border-radius: 28px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.2), transparent),
    linear-gradient(135deg, #ff9347, #ff4d1f 64%, #ffc368);
  box-shadow: 0 16px 30px rgba(255, 107, 44, 0.22);
}
.mock-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 18px 4px; }
.mock-grid span { aspect-ratio: 1; border-radius: 18px; background: #fff; box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08); }
.mock-card { height: 72px; margin: 12px 4px; border-radius: 22px; background: #fff; box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08); }
.mock-card.large { height: 110px; background: linear-gradient(135deg, #fff, #fff5ec); }
.floating-card {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 164px;
  padding: 16px 18px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.15);
  backdrop-filter: blur(12px);
}
.floating-card strong { font-size: 18px; }
.floating-card span { color: var(--muted); font-size: 13px; }
.card-order { left: 0; top: 110px; }
.card-nfc { right: 0; bottom: 120px; }
.section-block { padding: 74px 0; }
.section-title { max-width: 760px; margin-bottom: 34px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card, .process-card, .security-card, .solution-panel, .contact-section {
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 16px 50px rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(18px);
}
.feature-card { padding: 28px; border-radius: 30px; }
.feature-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 18px;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, #ff9347, #ff4d1f);
  box-shadow: 0 13px 24px rgba(255, 107, 44, 0.22);
}
.split-section { display: grid; grid-template-columns: 1fr 0.9fr; align-items: center; gap: 34px; }
.check-list { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 14px; }
.check-list li { position: relative; padding-left: 34px; color: #344054; line-height: 1.7; font-weight: 700; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: #12b76a;
  font-size: 14px;
}
.solution-panel { padding: 22px; border-radius: 32px; display: grid; gap: 14px; }
.solution-row { display: grid; grid-template-columns: 54px 1fr; gap: 14px; align-items: center; padding: 18px; border-radius: 24px; background: #fff; }
.solution-row span { width: 44px; height: 44px; display: grid; place-items: center; border-radius: 15px; color: #fff; font-weight: 900; background: #1b8cff; }
.solution-row strong, .solution-row em { display: block; }
.solution-row strong { margin-bottom: 6px; }
.solution-row em { color: var(--muted); font-style: normal; line-height: 1.5; font-size: 14px; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.process-card { padding: 24px; border-radius: 28px; }
.process-card span { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 15px; color: var(--primary-dark); background: #fff1e7; font-weight: 900; }
.process-card strong { display: block; margin-bottom: 10px; font-size: 18px; }
.security-section { display: grid; grid-template-columns: 1fr 0.8fr; gap: 24px; align-items: stretch; }
.security-card { padding: 34px; border-radius: 34px; }
.security-list { display: grid; gap: 12px; }
.security-list span { display: flex; align-items: center; padding: 18px 20px; border-radius: 22px; color: #0f172a; background: #fff; border: 1px solid var(--line); font-weight: 900; box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05); }
.contact-section { margin-bottom: 70px; padding: 38px; border-radius: 36px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.contact-section p { margin-bottom: 0; }
.contact-links { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.contact-links a { background: #111827; color: #fff; min-height: 44px; font-size: 14px; }
.site-footer { padding: 24px 0 36px; color: #667085; border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 14px; }
@media (max-width: 980px) {
  .hero, .split-section, .security-section { grid-template-columns: 1fr; }
  .hero { padding-top: 54px; gap: 32px; }
  .hero-card { min-height: 500px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-section { align-items: flex-start; flex-direction: column; }
  .contact-links { justify-content: flex-start; }
}
@media (max-width: 680px) {
  .section-shell, .nav { width: min(100% - 28px, 1160px); }
  .nav { min-height: 66px; }
  .nav-links { display: none; }
  h1 { font-size: 40px; }
  .hero { min-height: auto; padding: 42px 0 42px; }
  .hero-desc { font-size: 16px; }
  .hero-actions a { width: 100%; }
  .hero-card { min-height: 460px; transform: scale(0.94); transform-origin: top center; }
  .card-order { left: 4px; top: 82px; }
  .card-nfc { right: 0; bottom: 88px; }
  .section-block { padding: 46px 0; }
  .feature-grid, .process-grid { grid-template-columns: 1fr; }
  .feature-card, .process-card, .security-card, .contact-section { border-radius: 24px; padding: 24px; }
  .solution-panel { border-radius: 24px; padding: 16px; }
  .solution-row { grid-template-columns: 44px 1fr; padding: 14px; }
  .solution-row span { width: 38px; height: 38px; }
  .contact-links a { width: 100%; }
}