:root {
  --green: #128c4b;
  --green-deep: #0b5c31;
  --white: #ffffff;
  --ink: #163022;
  --muted: #4a5c52;
  --line: #d7e6dc;
  --soft: #eef7f1;
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "Avenir Next", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.8;
}

.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4vw;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--green-deep);
}
.nav { display: flex; flex-wrap: wrap; gap: 16px; }
.nav a { color: var(--green-deep); text-decoration: none; font-size: 14px; }
.nav a:hover { text-decoration: underline; }

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 320px;
}
.hero-left, .hero-right { padding: 48px 5vw; }
.hero-left { background: var(--green); color: #f3fff7; }
.hero-right { background: var(--white); color: var(--ink); display: flex; align-items: center; }
.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.35;
}
.hero-left p { margin: 0; color: #dff5e8; font-size: 16px; max-width: 28em; }
.hero-right p { margin: 0; color: var(--muted); font-size: 16px; max-width: 28em; }

.wrap { width: min(1100px, 92vw); margin: 0 auto; }
section { padding: 52px 0; }
h2 { margin: 0 0 16px; font-size: clamp(22px, 2.6vw, 28px); line-height: 1.4; }
.lead { color: var(--muted); margin: 0 0 22px; max-width: 48em; }
p { margin: 0 0 16px; }

.personas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.persona {
  border: 1px solid var(--line);
  padding: 26px 22px;
  background: var(--soft);
}
.persona.alt { background: #fff; }
.persona svg { display: block; margin-bottom: 12px; }
.persona h3 { margin: 0 0 10px; font-size: 20px; color: var(--green-deep); }

table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { border: 1px solid var(--line); padding: 12px 14px; text-align: left; vertical-align: top; }
th { background: var(--green-deep); color: #fff; }
td:nth-child(2) { background: var(--soft); }

.advice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
}
.advice article { padding: 24px 22px; }
.advice article:first-child { background: var(--soft); border-right: 1px solid var(--line); }
.advice h3 { margin: 0 0 10px; color: var(--green-deep); }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.step {
  padding: 16px 14px;
  border-bottom: 3px solid var(--green);
  background: var(--soft);
}
.step b { display: block; margin-bottom: 6px; color: var(--green-deep); }

.faq-list { margin: 0; padding: 0; list-style: none; }
.faq-list li { border-top: 1px solid var(--line); padding: 16px 0; }
.faq-list h3 { margin: 0 0 8px; font-size: 17px; }
.faq-list p { color: var(--muted); font-size: 15px; }

.site-footer {
  background: var(--green-deep);
  color: #d9f3e4;
  padding: 34px 4vw 40px;
  font-size: 14px;
}
.site-footer p { margin: 0 0 10px; }

@media (max-width: 900px) {
  .hero, .personas, .advice, .steps { grid-template-columns: 1fr; }
  .advice article:first-child { border-right: none; border-bottom: 1px solid var(--line); }
  .bar { flex-direction: column; align-items: flex-start; gap: 10px; }
}