:root {
  --bg: #f4f0e8;
  --panel: #fffdf8;
  --ink: #1b1a17;
  --muted: #5d5547;
  --accent: #c45a1f;
  --accent-2: #0f7b66;
  --line: #ddd2bf;
  --max: 1120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 5% 5%, #fff6de 0, transparent 34%),
    radial-gradient(circle at 95% 15%, #fce5c9 0, transparent 32%),
    var(--bg);
  line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.92);
  backdrop-filter: blur(6px);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}
.brand {
  font-weight: 800;
  letter-spacing: 0.6px;
}
.brand small {
  display: block;
  color: var(--muted);
  font-weight: 500;
  font-size: 12px;
}

.lang-wrap select {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 10px;
  padding: 8px 10px;
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 8px 20px 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.nav a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--muted);
  background: #fffdf7;
  font-size: 14px;
}
.nav a.active {
  border-color: var(--accent);
  color: var(--accent);
}

.main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px 20px 60px;
}
.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
}
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent-2);
  font-weight: 700;
}
h1 {
  margin: 8px 0 10px;
  line-height: 1.2;
  font-size: clamp(28px, 4vw, 44px);
}
.lead { color: var(--muted); font-size: 17px; }

.cta-row {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.btn {
  padding: 11px 18px;
  border-radius: 12px;
  font-weight: 700;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-secondary {
  border-color: var(--line);
  background: #fff;
}

.section {
  margin-top: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px;
}
.section h2 { margin: 0 0 12px; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: #fff;
}
.card p { margin: 8px 0 0; color: var(--muted); }

.feature-list {
  margin: 0;
  padding-left: 20px;
}
.feature-list li { margin: 8px 0; }

.site-footer {
  border-top: 1px solid var(--line);
  background: #f8f3e9;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 20px 40px;
}
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 10px;
}
.links a { color: var(--muted); font-size: 14px; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .grid { grid-template-columns: 1fr; }
  .header-inner { align-items: flex-start; }
}