:root {
  --color-bg: #f7fbf8;
  --color-surface: #ffffff;
  --color-text: #2c211d;
  --color-muted: #756a64;
  --color-line: #dce7e1;
  --color-brand: #a66d58;
  --color-brand-dark: #7d4938;
  --color-accent: #c25e4d;
  --color-green: #4f8f7a;
  --color-blue-soft: #e8f2f4;
  --shadow-soft: 0 20px 60px rgba(84, 54, 38, 0.12);
  --container: 1120px;
  --header-h: 72px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--header-h);
  background: rgba(247, 251, 248, 0.9);
  border-bottom: 1px solid rgba(220, 231, 225, 0.86);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

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

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(135deg, #e6a47d, var(--color-accent));
  box-shadow: 0 10px 24px rgba(194, 94, 77, 0.24);
}

.brand-text {
  font-size: 16px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav a {
  font-size: 14px;
  color: var(--color-muted);
  transition: color 0.2s;
}

.site-nav a:hover {
  color: var(--color-text);
}

.section {
  padding: 84px 0;
}

.section-title {
  margin: 0 0 44px;
  text-align: center;
  font-size: 30px;
  line-height: 1.25;
  font-weight: 800;
}

.section-title::after {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 999px;
  background: var(--color-accent);
}

.section-title.align-left {
  text-align: left;
  margin-bottom: 18px;
}

.section-title.align-left::after {
  margin-left: 0;
}

.section-lead {
  margin: 0;
  max-width: 680px;
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.95;
}

.site-footer {
  padding: 56px 0 64px;
  background: #ffffff;
  border-top: 1px solid var(--color-line);
}

.footer-bar {
  display: grid;
  grid-template-columns: auto 1px auto 1px auto 1px auto;
  align-items: center;
  justify-content: center;
  gap: 0 48px;
}

.footer-bar__divider {
  width: 1px;
  height: 72px;
  background: var(--color-line);
}

.footer-bar__col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-bar__col--logo img {
  width: 160px;
  max-width: 100%;
  height: auto;
}

.footer-bar__col--follow {
  flex-direction: row;
  align-items: center;
  gap: 16px;
}

.footer-bar__col--legal {
  gap: 14px;
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 28px;
}

.footer-bar__col--legal a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
  transition: color 0.2s;
}

.footer-bar__col--legal a:hover {
  color: var(--color-text);
}

.footer-icp {
  font-size: 13px;
  color: var(--color-muted);
}

.footer-icp:hover {
  color: var(--color-accent);
}

.footer-info-qr {
  width: 96px;
  height: 96px;
  border-radius: 4px;
}

.footer-info-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-info-item img {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  object-fit: contain;
}

.footer-info-item div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-info-item__label {
  font-size: 13px;
  color: var(--color-muted);
}

.footer-info-item__value {
  font-size: 14px;
  color: var(--color-text);
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 32px, var(--container));
  }

  .site-nav {
    gap: 18px;
  }

  .site-nav a {
    font-size: 13px;
  }

  .section {
    padding: 58px 0;
  }

  .section-title {
    font-size: 24px;
    margin-bottom: 30px;
  }

  .footer-bar {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }

  .footer-bar__divider {
    display: none;
  }

  .footer-bar__col {
    align-items: center;
  }

  .footer-bar__col--follow {
    flex-direction: column;
    align-items: center;
  }

  .footer-legal-links {
    justify-content: center;
  }

  .footer-bar__col--legal a {
    justify-content: center;
  }

  .footer-info-item {
    justify-content: center;
  }
}