:root {
  --bg: #F2F3F0;
  --card: #FFFFFF;
  --text: #111111;
  --muted: #666666;
  --line: #CBCCC9;
  --primary: #FF8400;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Geist", system-ui, sans-serif; }
.site { width: 1440px; max-width: 100%; margin: 0 auto; background: var(--bg); }
.navbar { height: 88px; padding: 0 80px; display: flex; align-items: center; justify-content: space-between; background: #fff; border-bottom: 1px solid var(--line); }
.brand { font-family: "JetBrains Mono", monospace; font-size: 24px; font-weight: 600; }
.hero { min-height: 640px; padding: 72px 80px; display: flex; gap: 48px; justify-content: space-between; align-items: center; background: linear-gradient(180deg, #fff 0%, #F2F3F0 100%); }
.hero-left { width: 700px; display: flex; flex-direction: column; gap: 20px; }
.badge { font-family: "Geist", sans-serif; font-size: 12px; font-weight: 600; letter-spacing: 1.2px; color: var(--primary); }
h1, h2, h3 { font-family: "JetBrains Mono", monospace; color: var(--text); margin: 0; }
h1 { font-size: 64px; line-height: 1.05; font-weight: 600; }
.hero-body { font-family: "JetBrains Mono", monospace; font-size: 20px; line-height: 1.35; color: var(--muted); margin: 0; }
.hero-image-wrap { width: 520px; height: 460px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: #ddd; }
.hero-image-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.section { padding: 72px 80px; display: flex; flex-direction: column; gap: 24px; }
.section.white { background: #fff; }
.section h2 { font-size: 40px; line-height: 1.1; font-weight: 600; }
.row { display: grid; gap: 20px; }
.row-1 { grid-template-columns: 1fr; }
.row-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.card.muted { background: #F2F3F0; }
.card h3 { font-size: 24px; font-weight: 600; }
.card p { margin: 0; font-family: "Geist", sans-serif; font-size: 16px; line-height: 1.4; color: var(--muted); }
.card span { font-family: "Geist", sans-serif; font-size: 14px; font-weight: 600; color: var(--primary); letter-spacing: .6px; }
.btn-primary { display: inline-flex; align-items: center; justify-content: center; height: 44px; padding: 0 18px; border-radius: 999px; text-decoration: none; font-family: "Geist", sans-serif; font-size: 14px; font-weight: 600; border: 0; cursor: pointer; background: var(--primary); color: #111; }
.btn-primary.small { height: 40px; border-radius: 12px; }
.chatbot-card { background: #F2F3F0; }
.chatbot-log { height: 280px; overflow: auto; border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 12px; display: flex; flex-direction: column; gap: 10px; }
.chat-msg { max-width: 82%; padding: 10px 12px; border-radius: 12px; font-size: 14px; line-height: 1.4; font-family: "Geist", sans-serif; white-space: pre-wrap; }
.chat-msg.user { align-self: flex-end; background: #111; color: #fff; }
.chat-msg.bot { align-self: flex-start; background: #fff; border: 1px solid var(--line); color: #111; }
.chatbot-form { display: flex; gap: 10px; }
.chatbot-form input { flex: 1; height: 40px; border: 1px solid var(--line); border-radius: 12px; padding: 0 12px; font-family: "Geist", sans-serif; font-size: 14px; color: #111; background: #fff; }
.chatbot-note { font-size: 13px !important; color: #666; }
@media (max-width: 1100px) {
  .navbar, .hero, .section { padding-left: 20px; padding-right: 20px; }
  .hero { height: auto; flex-direction: column; align-items: flex-start; }
  .hero-left, .hero-image-wrap { width: 100%; }
  .row-3 { grid-template-columns: 1fr; }
  .chatbot-log { height: 240px; }
}