:root {
  --bg: #f7f3ea;
  --ink: #17221f;
  --muted: #68756f;
  --panel: #fffdf7;
  --line: #d8ddd2;
  --green: #1f8a70;
  --green-dark: #125a4a;
  --gold: #f0c75e;
  --red: #d96b63;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, "Microsoft YaHei", sans-serif;
}
a { color: inherit; text-decoration: none; }
.hero {
  min-height: 86vh;
  padding: 28px clamp(18px, 5vw, 72px) 56px;
  color: #fffdf7;
  background: linear-gradient(135deg, rgba(18, 90, 74, .95), rgba(31, 138, 112, .68)), linear-gradient(120deg, #163b35, #e6c15b 56%, #f6eee1);
}
.nav, .footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}
.brand { font-size: 20px; font-weight: 900; }
.nav-links { display: flex; gap: 18px; flex-wrap: wrap; color: rgba(255,255,255,.82); }
.hero-grid {
  width: min(1160px, 100%);
  margin: 78px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .75fr);
  gap: clamp(28px, 6vw, 76px);
  align-items: center;
}
.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.hero .eyebrow { color: var(--gold); }
h1, h2, h3 { margin: 0; letter-spacing: 0; }
h1 { font-size: clamp(60px, 10vw, 126px); line-height: .9; }
h2 { font-size: clamp(30px, 5vw, 52px); line-height: 1.08; margin-bottom: 18px; }
h3 { font-size: 22px; margin-bottom: 10px; }
.lead { max-width: 760px; font-size: clamp(18px, 2.2vw, 24px); line-height: 1.65; color: rgba(255,255,255,.88); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.btn { display: inline-flex; align-items: center; min-height: 46px; padding: 0 18px; border-radius: 6px; font-weight: 800; }
.primary { background: #fffdf7; color: var(--green-dark); }
.ghost { border: 1px solid rgba(255,255,255,.48); }
.status-card, .demo-card, .cards article, .timeline li {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.status-card { color: var(--ink); padding: 22px; box-shadow: 0 24px 80px rgba(0,0,0,.2); }
.dots { display: flex; gap: 7px; margin-bottom: 20px; }
.dots span { width: 11px; height: 11px; border-radius: 50%; background: var(--red); }
.dots span:nth-child(2) { background: var(--gold); }
.dots span:nth-child(3) { background: var(--green); }
.small { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.input-demo { padding: 16px; border-radius: 6px; background: var(--ink); color: var(--gold); font-weight: 900; }
dl { margin: 20px 0 0; display: grid; gap: 12px; }
dl div { display: flex; justify-content: space-between; gap: 16px; }
dt { color: var(--muted); } dd { margin: 0; font-weight: 900; color: var(--green-dark); }
.section { padding: 74px clamp(18px, 5vw, 72px); }
.section > p, .section-title, .intro { width: min(900px, 100%); }
.intro { margin: 0 auto; }
.intro p:not(.eyebrow), .safety p:not(.eyebrow) { color: var(--muted); line-height: 1.9; font-size: 18px; }
.alt { background: #fffdf7; }
.section-title { margin: 0 auto 32px; text-align: center; }
.section-title p:last-child { color: var(--muted); }
.cards { width: min(1160px, 100%); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cards article { padding: 22px; }
.cards p, .timeline span, .demo-card p { color: var(--muted); line-height: 1.7; }
.timeline { width: min(980px, 100%); margin: 0 auto; padding: 0; list-style: none; display: grid; gap: 12px; }
.timeline li { display: grid; grid-template-columns: 220px 1fr; gap: 18px; padding: 18px; border-left: 5px solid var(--green); }
.demo-wrap { width: min(1020px, 100%); margin: 0 auto; }
.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs button { border: 1px solid var(--line); background: var(--panel); border-radius: 6px; padding: 12px 16px; cursor: pointer; font: inherit; }
.tabs button.active { background: var(--green-dark); color: #fffdf7; border-color: var(--green-dark); }
.demo-card { display: grid; grid-template-columns: 112px 1fr minmax(210px, .4fr); gap: 24px; align-items: center; padding: 24px; }
.score { width: 104px; height: 104px; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--green) 310deg, #dfe8e2 0); color: var(--green-dark); font-size: 34px; font-weight: 900; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { padding: 7px 10px; border-radius: 999px; background: #e8f2ed; color: var(--green-dark); font-size: 13px; font-weight: 800; }
.case-side { display: grid; gap: 8px; padding: 18px; border-left: 4px solid var(--gold); background: #fbf7ed; }
.case-side span { color: var(--muted); font-size: 13px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; background: var(--panel); }
.clean-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.clean-list li { padding: 14px 16px; border-left: 4px solid var(--green); border-radius: 6px; background: #f6faf7; line-height: 1.6; }
.clean-list.warning li { border-left-color: var(--gold); }
.safety { background: var(--ink); color: #fffdf7; }
.safety .eyebrow { color: var(--gold); }
.safety p:not(.eyebrow) { color: rgba(255,255,255,.76); width: min(980px, 100%); }
.footer { padding: 26px clamp(18px, 5vw, 72px); background: #ede1cc; color: #3b4743; }
@media (max-width: 900px) {
  .hero-grid, .cards, .timeline li, .demo-card, .two-col { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .hero { min-height: auto; }
  .nav, .footer { align-items: flex-start; flex-direction: column; }
  .cards { grid-template-columns: 1fr; }
  .btn { width: 100%; justify-content: center; }
}