:root {
  color-scheme: light;
  --page: #fdfcf8;
  --surface: #ffffff;
  --title: #2e2620;
  --body: #675b52;
  --muted: #9c8e82;
  --border: rgba(214, 201, 188, 0.72);
  --primary: #c25840;
  --primary-soft: rgba(194, 88, 64, 0.1);
  --shadow: 0 20px 55px rgba(80, 54, 36, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
  color: var(--body);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.72;
}

body {
  margin: 0;
}

.page {
  margin: 0 auto;
  max-width: 880px;
  padding: 48px 22px 72px;
}

.home-page {
  max-width: 1040px;
}

.hero,
.section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.hero {
  margin-bottom: 22px;
  padding: 34px 30px;
}

.home-hero {
  overflow: hidden;
  padding: 38px 34px;
}

.brand-lockup {
  align-items: center;
  display: grid;
  gap: 22px;
  grid-template-columns: auto minmax(0, 1fr);
}

.brand-icon {
  border-radius: 32px;
  box-shadow: 0 18px 36px rgba(80, 54, 36, 0.16);
  display: block;
  height: 96px;
  width: 96px;
}

.brand-label {
  color: var(--primary);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}

.lead {
  color: var(--title);
  font-size: 18px;
  margin-top: 24px;
  max-width: 760px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button-link {
  align-items: center;
  background: var(--primary);
  border: 1px solid var(--primary);
  border-radius: 999px;
  color: #fffaf5;
  display: inline-flex;
  font-size: 15px;
  font-weight: 800;
  min-height: 46px;
  padding: 11px 18px;
  text-decoration: none;
}

.button-link:hover {
  text-decoration: none;
}

.button-link.secondary {
  background: var(--surface);
  color: var(--primary);
}

.grain {
  background: linear-gradient(135deg, #f3e0bc, #fff7e9);
  border: 1px solid rgba(194, 88, 64, 0.16);
  border-radius: 999px;
  height: 14px;
  margin-bottom: 18px;
  transform: rotate(-24deg);
  width: 56px;
}

h1,
h2 {
  color: var(--title);
  line-height: 1.28;
  margin: 0;
}

h1 {
  font-size: clamp(30px, 7vw, 44px);
  letter-spacing: -0.04em;
}

h2 {
  font-size: 21px;
  margin-bottom: 10px;
}

p {
  margin: 10px 0 0;
}

a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-top: 16px;
}

.section {
  margin-top: 16px;
  padding: 24px 26px;
}

.feature-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 26px;
  box-shadow: var(--shadow);
  min-height: 170px;
  padding: 24px 24px 26px;
}

.list {
  margin: 10px 0 0;
  padding-left: 20px;
}

.list li {
  margin: 6px 0;
}

.notice {
  background: var(--primary-soft);
  border: 1px solid rgba(194, 88, 64, 0.18);
  border-radius: 20px;
  color: var(--title);
  margin-top: 18px;
  padding: 16px 18px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 24px;
}

.footer {
  color: var(--muted);
  font-size: 13px;
  margin-top: 28px;
  text-align: center;
}

@media (max-width: 640px) {
  .page {
    padding: 28px 16px 48px;
  }

  .hero,
  .section {
    border-radius: 24px;
  }

  .hero {
    padding: 28px 22px;
  }

  .section {
    padding: 22px 20px;
  }

  .home-hero {
    padding: 28px 22px;
  }

  .brand-lockup,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .brand-icon {
    border-radius: 26px;
    height: 82px;
    width: 82px;
  }

  .lead {
    font-size: 16px;
  }

  .button-link {
    justify-content: center;
    width: 100%;
  }

  .feature-card {
    min-height: 0;
    padding: 22px 20px;
  }
}