:root {
  color-scheme: light;
  --bg: #fff8fa;
  --panel: #ffffff;
  --text: #2f2f35;
  --muted: #74747c;
  --primary: #f5a0b5;
  --primary-dark: #db7895;
  --primary-soft: #fde8ee;
  --line: #f2d9e2;
  --shadow: 0 18px 50px rgba(88, 39, 57, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei",
    sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(245, 160, 181, 0.28), transparent 34rem),
    linear-gradient(180deg, #fff8fa 0%, #ffffff 42%, #fff8fa 100%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 24px;
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-logo,
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
}

.brand-logo {
  display: block;
  object-fit: cover;
  box-shadow: 0 10px 24px rgba(245, 160, 181, 0.28);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--primary);
  box-shadow: 0 10px 24px rgba(245, 160, 181, 0.36);
}

.brand-text {
  font-size: 18px;
}

.nav {
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover {
  color: var(--primary-dark);
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 24px 72px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.75fr);
  gap: 56px;
  align-items: center;
  min-height: 640px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
}

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

h1 {
  max-width: 740px;
  margin-bottom: 24px;
  font-size: clamp(44px, 7vw, 78px);
  line-height: 1.04;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

.hero-desc {
  max-width: 650px;
  color: var(--muted);
  font-size: 21px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 22px;
  font-weight: 700;
}

.primary-btn {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 14px 34px rgba(245, 160, 181, 0.4);
}

.secondary-btn {
  color: var(--primary-dark);
  background: var(--primary-soft);
}

.note {
  max-width: 620px;
  margin-top: 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.phone-card {
  width: min(100%, 360px);
  margin: 0 auto;
  padding: 22px;
  border: 10px solid #24242b;
  border-radius: 42px;
  background: #fff;
  box-shadow: var(--shadow);
}

.phone-top {
  width: 90px;
  height: 6px;
  margin: 0 auto 28px;
  border-radius: 999px;
  background: #222;
}

.app-logo {
  display: block;
  width: 78px;
  height: 78px;
  margin: 0 auto 22px;
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 12px 28px rgba(245, 160, 181, 0.3);
}

.task-card {
  padding: 24px;
  border-radius: 24px;
  background: var(--primary-soft);
}

.task-label {
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 800;
}

.task-card h2 {
  margin: 14px 0 10px;
  font-size: 26px;
}

.task-card p {
  color: var(--muted);
  line-height: 1.6;
}

.task-card button {
  width: 100%;
  margin-top: 12px;
  border: 0;
  border-radius: 16px;
  padding: 14px;
  color: #fff;
  background: var(--primary);
  font: inherit;
  font-weight: 800;
}

.mini-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.mini-list span {
  display: block;
  border-radius: 16px;
  padding: 14px;
  color: var(--muted);
  background: #f7f7f8;
}

.section {
  padding: 86px 0;
}

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

.section-desc {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.feature-grid,
.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.roadmap-grid article,
.reminder-box,
.legal-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 30px rgba(88, 39, 57, 0.06);
}

.feature-card p,
.roadmap-grid p,
.reminder-box p,
.legal-card p {
  color: var(--muted);
  line-height: 1.8;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: 48px;
  align-items: start;
}

.steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  background: #fff;
}

.steps span,
.phase {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 999px;
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-weight: 800;
}

.steps span {
  width: 32px;
  height: 32px;
}

.steps p {
  margin: 3px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.phase {
  margin-bottom: 18px;
  padding: 8px 12px;
  font-size: 13px;
}

.reminder-box {
  padding: 36px;
  background: #fff;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  max-width: 1120px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 28px 24px 42px;
  color: var(--muted);
  font-size: 14px;
}

.footer div {
  display: flex;
  gap: 18px;
}

.legal-main {
  max-width: 860px;
  min-height: calc(100vh - 170px);
  padding-top: 76px;
}

.legal-card {
  background: #fff;
}

.legal-card h1 {
  margin-bottom: 12px;
  font-size: clamp(34px, 6vw, 54px);
}

.updated {
  margin-bottom: 42px;
  color: var(--muted);
}

.legal-card section {
  margin-top: 34px;
}

.legal-card h2 {
  margin-bottom: 10px;
  font-size: 24px;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .nav {
    flex-wrap: wrap;
    gap: 14px 18px;
  }

  .hero,
  .split-section,
  .feature-grid,
  .roadmap-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 48px 0 20px;
  }

  .section {
    padding: 58px 0;
  }

  .footer {
    flex-direction: column;
  }
}