:root {
  color-scheme: light;
  --peach-100: #fff5f0;
  --peach-200: #ffe6de;
  --peach-300: #ffd0c0;
  --peach-500: #ff8b7b;
  --peach-600: #ff6e5f;
  --rose-500: #f26c84;
  --brown-900: #4a3328;
  --gray-700: #4f4f4f;
  --gray-500: #8c8c8c;
  --gray-200: #efefef;
  --surface: rgba(255, 255, 255, 0.88);
  --shadow-soft: 0 20px 60px rgba(251, 120, 120, 0.15);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Nunito', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--peach-100);
  color: var(--brown-900);
  line-height: 1.6;
  min-height: 100vh;
}

.page-gradient {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 218, 199, 0.95), transparent 60%),
    radial-gradient(circle at 80% 0%, rgba(255, 165, 165, 0.7), transparent 50%),
    linear-gradient(180deg, #fff9f7, #ffe5e0);
  z-index: -1;
}

nav,
section,
footer {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 32px 0 80px;
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 8px 0 32px;
}

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

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--peach-500), var(--rose-500));
  display: grid;
  place-items: center;
  color: white;
  font-size: 20px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  font-weight: 700;
  color: var(--brown-900);
}

.nav-links {
  display: flex;
  gap: 20px;
  font-weight: 600;
}

.nav-links a {
  color: var(--brown-900);
  text-decoration: none;
}

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

.btn {
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.solid {
  background: linear-gradient(135deg, var(--peach-600), var(--rose-500));
  color: white;
  box-shadow: var(--shadow-soft);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.3);
  color: var(--peach-600);
}

.btn:hover {
  transform: translateY(-2px);
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 3vw, 3.6rem);
  line-height: 1.2;
  margin: 12px 0;
}

.hero-desc {
  color: var(--gray-700);
}

.hero-badge {
  display: inline-flex;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 999px;
  font-weight: 600;
  color: var(--peach-600);
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.hero-highlights {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 40px;
  color: var(--gray-700);
}

.hero-highlights .metric {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--peach-600);
}

.hero-device {
  display: flex;
  justify-content: center;
}

.device-frame {
  width: 320px;
  border-radius: 40px;
  padding: 18px;
  background: linear-gradient(180deg, #111, #333);
  box-shadow: var(--shadow-soft);
}

.device-screen {
  border-radius: 30px;
  background: linear-gradient(180deg, #fff9f4, #ffe4da);
  padding: 24px;
  height: 540px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.screen-header {
  text-align: center;
  color: var(--brown-900);
}

.avatar-group {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 8px;
}

.avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gray-200);
}

.screen-header strong {
  font-size: 2.8rem;
}

.screen-card,
.screen-grid div {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 18px;
  padding: 14px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.screen-card {
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.screen-button {
  background: linear-gradient(135deg, var(--peach-500), var(--rose-500));
  color: white;
  text-align: center;
  padding: 12px;
  border-radius: 24px;
  font-weight: 700;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

main {
  display: flex;
  flex-direction: column;
  gap: 80px;
  padding-bottom: 80px;
}

.section {
  background: var(--surface);
  padding: 48px;
  border-radius: 36px;
  box-shadow: var(--shadow-soft);
}

.section p {
  margin-top: 0;
}

.overline {
  letter-spacing: 0.32em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--peach-600);
  font-weight: 700;
}

.stats {
  display: grid;
  gap: 32px;
}

.stat-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

.stat-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 24px;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--peach-600);
}

.features .feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.feature-grid article {
  background: white;
  border-radius: 24px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.feature-grid ul {
  padding-left: 20px;
  margin: 12px 0 0;
  color: var(--gray-700);
}

.gallery {
  display: grid;
  gap: 32px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.gallery figure {
  min-height: 220px;
  border-radius: 28px;
  margin: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 223, 214, 0.9));
  border: 1px dashed rgba(255, 255, 255, 0.8);
  display: grid;
  place-items: center;
  color: var(--gray-500);
  text-align: center;
  padding: 16px;
}

.steps .step-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 32px 0 0;
}

.steps li {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 24px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.7);
}

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

.callout-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.compliance {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.compliance div {
  background: white;
  border-radius: 24px;
  padding: 24px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
}

.link-button {
  background: none;
  border: none;
  color: var(--peach-600);
  font-weight: 700;
  cursor: pointer;
  padding: 0 4px;
  font-family: inherit;
}

.link-button:hover,
.link-button:focus {
  text-decoration: underline;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(74, 51, 40, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  padding: 24px;
  z-index: 200;
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-panel {
  background: var(--surface);
  border-radius: 32px;
  max-width: 760px;
  width: min(760px, 100%);
  max-height: 90vh;
  padding: 32px 32px 28px;
  box-shadow: 0 30px 120px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  color: var(--brown-900);
  font-size: 1.25rem;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.agreement-head {
  text-align: center;
}

.agreement-tag {
  display: inline-flex;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  color: var(--peach-600);
  margin-bottom: 8px;
}

.agreement-head h2 {
  margin: 0 0 8px;
}

.agreement-scroll {
  overflow-y: auto;
  margin: 8px 0 24px;
  padding-right: 8px;
}

.agreement-block + .agreement-block {
  margin-top: 24px;
}

.agreement-block h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--brown-900);
}

.agreement-block p {
  margin: 4px 0;
  color: var(--gray-700);
}

.agreement-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

footer {
  text-align: center;
  color: var(--gray-500);
  padding: 32px 0 60px;
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .nav-links {
    display: none;
  }

  .section {
    padding: 32px;
  }

  .hero-highlights {
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  nav,
  section,
  footer {
    width: 92vw;
  }

  .hero {
    padding-top: 16px;
  }

  .hero-content {
    gap: 32px;
  }

  .section {
    padding: 24px;
  }

  .hero-highlights {
    flex-direction: column;
    gap: 12px;
  }

  .callout {
    flex-direction: column;
    align-items: flex-start;
  }

  .modal-panel {
    padding: 24px 20px 20px;
    border-radius: 24px;
  }

  .agreement-actions {
    flex-direction: column;
    width: 100%;
  }

  .agreement-actions .btn {
    width: 100%;
  }
}