:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --surface: #ffffff;
  --surface-soft: #f4f0ea;
  --text: #28231f;
  --muted: #6e6258;
  --border: #e3d9cf;
  --accent: #3b7666;
  --accent-soft: #e6f0ec;
  --warm: #b46d45;
  --shadow: 0 18px 40px rgba(67, 51, 38, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(251, 250, 247, 0.94);
}

.nav {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
}

.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 76px 24px 44px;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 44px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--warm);
  font-size: 14px;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.25;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
}

h2 {
  margin: 42px 0 14px;
  font-size: 26px;
}

h3 {
  margin: 28px 0 10px;
  font-size: 19px;
}

p {
  margin: 0 0 14px;
}

.lead {
  margin-top: 20px;
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}

.actions {
  margin-top: 28px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.button.secondary {
  background: transparent;
  color: var(--accent);
}

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

.phone-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.panel-title {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
}

.status-card {
  padding: 16px;
  border-radius: 8px;
  background: var(--accent-soft);
  margin-bottom: 12px;
}

.status-card strong {
  display: block;
  font-size: 18px;
}

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

.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.quick-item {
  border: 1px solid var(--border);
  background: var(--surface-soft);
  border-radius: 8px;
  padding: 12px;
  font-weight: 700;
  font-size: 14px;
}

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 42px 24px 72px;
}

.section-band {
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.section-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 52px 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  padding: 18px;
}

.feature h3 {
  margin-top: 0;
}

.note {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 14px 16px;
  border-radius: 0 8px 8px 0;
  color: var(--text);
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 28px;
}

.toc a {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}

ul,
ol {
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

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

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface-soft);
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 44px;
  }

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

  .quick-grid {
    grid-template-columns: 1fr;
  }
}