* {
  box-sizing: border-box;
}

:root {
  --orange: #ff9d42;
  --orange-dark: #ee7416;
  --orange-soft: #fff4e8;
  --ink: #18202a;
  --muted: #6f7782;
  --line: #eceff3;
  --paper: #ffffff;
  --bg: #f7f8fa;
  --teal: #13a59a;
  --shadow: 0 18px 45px rgba(24, 32, 42, .08);
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 76px;
  padding: 0 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, .86);
  border-bottom: 1px solid rgba(236, 239, 243, .8);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, #ffb468, #f1741b);
  box-shadow: 0 10px 22px rgba(255, 157, 66, .25);
}

.main-nav {
  display: flex;
  gap: 34px;
  font-size: 15px;
  color: var(--muted);
}

.main-nav a {
  padding: 8px 0;
}

.main-nav .active {
  color: var(--ink);
  font-weight: 600;
}

.nav-action,
.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
}

.nav-action,
.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, #ffb468, #f1741b);
  box-shadow: 0 12px 24px rgba(255, 157, 66, .22);
}

.secondary-btn {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
}

.hero {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  padding: 128px max(56px, calc((100% - 1120px) / 2)) 120px;
  background:
    linear-gradient(90deg, rgba(255, 250, 245, .98) 0%, rgba(255, 250, 245, .88) 42%, rgba(255, 244, 232, .44) 100%),
    radial-gradient(circle at 78% 22%, rgba(19, 165, 154, .18), transparent 28%),
    radial-gradient(circle at 82% 78%, rgba(255, 157, 66, .22), transparent 30%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 150px;
  background: linear-gradient(180deg, transparent, var(--bg));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--orange-dark);
  font-size: 14px;
  font-weight: 700;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.hero h1,
.about-hero h1 {
  margin-bottom: 22px;
  font-size: 76px;
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy,
.about-hero p {
  max-width: 580px;
  color: #46515f;
  font-size: 20px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 38px;
}

.hero-qr-card {
  width: fit-content;
  max-width: 420px;
  margin-top: 24px;
  padding: 12px 16px 12px 12px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(255, 157, 66, .18);
  border-radius: 18px;
  box-shadow: 0 14px 32px rgba(24, 32, 42, .08);
  backdrop-filter: blur(12px);
}

.hero-qr-card img {
  width: 86px;
  height: 86px;
  border-radius: 12px;
  object-fit: cover;
  background: #fff;
}

.hero-qr-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
}

.hero-qr-card span {
  display: block;
  max-width: 260px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.hero-visual {
  position: absolute;
  right: max(72px, calc((100% - 1120px) / 2 + 36px));
  top: 112px;
  width: 330px;
  height: 500px;
  border-radius: 34px;
  overflow: hidden;
  box-shadow: 0 28px 80px rgba(60, 42, 24, .22);
  transform: rotate(3deg);
  background: #fff;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 10px solid rgba(255, 255, 255, .72);
  border-radius: 34px;
  pointer-events: none;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.metrics-band {
  position: relative;
  z-index: 3;
  width: min(1120px, calc(100% - 48px));
  margin: -72px auto 88px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.metrics-band div {
  padding: 30px 34px;
  border-right: 1px solid var(--line);
}

.metrics-band div:last-child {
  border-right: none;
}

.metrics-band strong {
  display: block;
  margin-bottom: 8px;
  font-size: 30px;
}

.metrics-band span {
  color: var(--muted);
  font-size: 14px;
}

.section,
.workflow-section,
.timeline-section,
.contact-section,
.cta-section {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto 96px;
}

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

.section-head h2,
.workflow-copy h2,
.company-copy h2,
.cta-section h2,
.contact-section h2 {
  margin-bottom: 14px;
  font-size: 42px;
  line-height: 1.2;
  letter-spacing: 0;
}

.section-head p,
.workflow-copy p,
.company-copy p,
.contact-section p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

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

.feature-card,
.scenario-grid article,
.value-grid article,
.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 12px 30px rgba(24, 32, 42, .05);
}

.feature-card span {
  display: inline-flex;
  margin-bottom: 26px;
  color: var(--teal);
  font-weight: 700;
}

.feature-card h3,
.scenario-grid h3,
.value-grid h3,
.timeline h3 {
  margin-bottom: 12px;
  font-size: 20px;
}

.feature-card p,
.scenario-grid p,
.value-grid p,
.timeline p,
.contact-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.workflow-section {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 56px;
  align-items: center;
  padding: 56px;
  border-radius: 28px;
  background: #18202a;
  color: #fff;
  box-shadow: var(--shadow);
}

.workflow-section .eyebrow {
  color: #ffbd7b;
}

.workflow-copy p {
  color: rgba(255, 255, 255, .68);
}

.workflow-list {
  display: grid;
  gap: 14px;
}

.workflow-item {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 72px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 16px;
  background: rgba(255, 255, 255, .06);
}

.workflow-item b {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--teal);
}

.scenario-grid,
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.cta-section,
.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 46px 52px;
  border-radius: 28px;
  background: linear-gradient(135deg, #fff6ed, #ffffff 58%, #eefaf8);
  border: 1px solid var(--line);
}

.site-footer {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding: 34px 0 46px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.about-hero {
  padding: 118px 56px 104px;
  background:
    linear-gradient(90deg, rgba(24, 32, 42, .86), rgba(24, 32, 42, .56)),
    url("assets/product-mobile.png");
  background-size: cover;
  background-position: center 18%;
  color: #fff;
}

.about-hero-inner {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.about-hero .eyebrow {
  color: #ffbd7b;
}

.about-hero p {
  color: rgba(255, 255, 255, .78);
}

.company-section {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  align-items: start;
  margin-top: 88px;
}

.company-panel {
  display: grid;
  gap: 12px;
  padding: 32px;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.company-panel strong {
  margin-top: 8px;
  color: var(--orange-dark);
}

.company-panel strong:first-child {
  margin-top: 0;
}

.company-panel span {
  color: var(--muted);
  line-height: 1.7;
}

.timeline-section {
  padding: 58px;
  border-radius: 28px;
  background: #fff;
  border: 1px solid var(--line);
}

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

.timeline div {
  padding: 6px 28px;
  border-left: 2px solid var(--orange);
}

.timeline span {
  display: block;
  margin-bottom: 12px;
  color: var(--teal);
  font-size: 14px;
  font-weight: 700;
}

.contact-card {
  width: 360px;
  flex-shrink: 0;
}

.contact-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--orange-dark);
  font-weight: 700;
}

.contact-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
}

@media (max-width: 960px) {
  .site-header {
    padding: 0 20px;
  }

  .nav-action {
    display: none;
  }

  .hero {
    padding: 96px 24px 86px;
  }

  .hero h1,
  .about-hero h1 {
    font-size: 52px;
  }

  .hero-qr-card {
    width: 100%;
    max-width: none;
  }

  .hero-visual {
    position: relative;
    right: auto;
    top: auto;
    width: 260px;
    height: 380px;
    margin-top: 44px;
    transform: none;
  }

  .metrics-band,
  .feature-grid,
  .workflow-section,
  .scenario-grid,
  .value-grid,
  .company-section,
  .timeline,
  .contact-section,
  .cta-section {
    grid-template-columns: 1fr;
  }

  .metrics-band {
    margin-top: -34px;
  }

  .metrics-band div {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .metrics-band div:last-child {
    border-bottom: none;
  }

  .workflow-section,
  .timeline-section,
  .contact-section,
  .cta-section {
    padding: 30px;
  }

  .contact-section,
  .cta-section {
    align-items: flex-start;
  }

  .contact-card {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
    gap: 10px;
  }
}