:root {
  --bg-base: #f7f2ea;
  --bg-accent: #eef5fb;
  --surface: rgba(255, 255, 255, 0.74);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --line: rgba(20, 29, 40, 0.11);
  --text: #1d2733;
  --muted: #58677a;
  --accent: #b66a3c;
  --accent-deep: #7f3f1e;
  --shadow: 0 24px 80px rgba(21, 32, 43, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(182, 106, 60, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(75, 120, 170, 0.16), transparent 26%),
    linear-gradient(135deg, var(--bg-base) 0%, var(--bg-accent) 100%);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

.site-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 22px auto;
  padding: 28px;
  border-radius: 30px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.35);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.site-header,
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.site-header {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.site-footer {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.brand-mark {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--accent-deep);
}

.brand-name {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.site-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  transition: 180ms ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  background: rgba(182, 106, 60, 0.14);
  color: var(--accent-deep);
}

main {
  padding-top: 22px;
}

.hero-panel,
.split-section,
.section-grid,
.page-hero {
  margin-bottom: 24px;
}

.hero-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
}

.hero-copy,
.hero-card-stack,
.glass-card {
  border-radius: 26px;
}

.hero-copy,
.glass-card {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 10px 32px rgba(21, 32, 43, 0.06);
  backdrop-filter: blur(12px);
}

.hero-copy {
  padding: 32px;
}

.hero-card-stack {
  display: grid;
  gap: 16px;
}

.stat-card {
  padding: 22px;
  background: var(--surface-strong);
}

.stat-card strong {
  display: block;
  font-size: 24px;
  margin-bottom: 8px;
}

.eyebrow,
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(182, 106, 60, 0.12);
  color: var(--accent-deep);
  font-size: 13px;
  letter-spacing: 0.08em;
}

h1 {
  margin: 18px 0 14px;
  font-size: clamp(38px, 5.8vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

h2 {
  margin: 16px 0 10px;
  font-size: 24px;
  letter-spacing: -0.03em;
}

.lead,
.glass-card p,
.glass-card li,
.note-text {
  color: var(--muted);
  line-height: 1.9;
  font-size: 16px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  transition: 180ms ease;
}

.button-primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.button-primary:hover {
  background: var(--accent-deep);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.62);
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.92);
}

.section-grid {
  display: grid;
  gap: 18px;
}

.section-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.section-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.split-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.glass-card {
  padding: 24px;
}

.feature-list,
.flow-list {
  margin: 14px 0 0;
  padding-left: 20px;
}

.feature-list li,
.flow-list li {
  margin-bottom: 10px;
}

.note-block {
  background: var(--surface-strong);
}

.page-hero {
  padding: 18px 0 4px;
}

.project-card {
  min-height: 220px;
}

@media (max-width: 920px) {
  .hero-panel,
  .split-section,
  .section-grid-two,
  .section-grid-three {
    grid-template-columns: 1fr;
  }

  .site-shell {
    width: min(100vw - 18px, 1180px);
    margin: 10px auto;
    padding: 18px;
  }

  .hero-copy,
  .glass-card {
    padding: 20px;
  }

  h1 {
    font-size: clamp(34px, 9vw, 56px);
  }
}