:root {
  --honey: #d98e04;
  --honey-dark: #9c6a08;
  --honey-light: #fdf3dd;
  --amber: #f5b942;
  --text: #3a3325;
  --muted: #7d7259;
  --bg: #fbf8f0;
  --card: #ffffff;
  --border: #eadfc6;
  --warn-bg: #fff3e0;
  --warn-border: #e8a33d;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.75;
}
.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; }

.navbar {
  background: #fff; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 4px rgba(0,0,0,.05);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; flex-wrap: wrap; }
.logo { font-size: 19px; font-weight: 700; color: var(--honey-dark); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.logo .icon { font-size: 24px; }
.nav-links { display: flex; gap: 8px; flex-wrap: wrap; }
.nav-links a {
  text-decoration: none; color: var(--muted); padding: 8px 16px; border-radius: 20px;
  font-size: 15px; transition: all .2s;
}
.nav-links a:hover { background: var(--honey-light); color: var(--honey-dark); }
.nav-links a.active { background: var(--honey); color: #fff; font-weight: 600; }

.disclaimer {
  background: var(--warn-bg); border: 1px solid var(--warn-border);
  color: #8a5a12; border-radius: 10px; padding: 10px 16px; font-size: 14px;
  margin: 16px 0; display: flex; gap: 8px; align-items: flex-start;
}
.disclaimer .em { font-weight: 700; }

.hero {
  background: linear-gradient(135deg, #fdf3dd 0%, #f9e7b8 100%);
  border-radius: 18px; padding: 52px 40px; text-align: center; margin: 24px 0 28px;
}
.hero h1 { font-size: 33px; color: var(--honey-dark); margin-bottom: 14px; }
.hero p.sub { font-size: 16px; color: var(--muted); max-width: 660px; margin: 0 auto 26px; }
.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 26px; text-decoration: none;
  font-size: 16px; font-weight: 600; transition: all .2s; border: none; cursor: pointer;
}
.btn-primary { background: var(--honey); color: #fff; }
.btn-primary:hover { background: var(--honey-dark); transform: translateY(-2px); }
.btn-outline { background: #fff; color: var(--honey-dark); border: 2px solid var(--honey); }
.btn-outline:hover { background: var(--honey-light); transform: translateY(-2px); }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 26px 28px; margin-bottom: 20px;
}
.card h2 { font-size: 21px; color: var(--honey-dark); margin-bottom: 12px; }
.page-title { font-size: 28px; color: var(--honey-dark); margin: 30px 0 6px; }
.page-sub { color: var(--muted); margin-bottom: 22px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin: 20px 0; }
.feature { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 26px; transition: all .2s; text-decoration: none; display: block; }
.feature:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(217,142,4,.15); }
.feature .icon { font-size: 34px; margin-bottom: 10px; }
.feature h3 { font-size: 18px; color: var(--honey-dark); margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--muted); }

.form-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 6px; }
select, input[type="text"] {
  padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; background: #fff;
}
select:focus, input:focus { outline: none; border-color: var(--honey); }
.go-btn {
  background: var(--honey); color: #fff; font-size: 16px; padding: 12px 34px;
  border-radius: 26px; border: none; cursor: pointer; font-weight: 700;
}
.go-btn:hover { background: var(--honey-dark); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin: 16px 0; }
.stat { background: var(--honey-light); border-radius: 12px; padding: 16px; text-align: center; }
.stat .num { font-size: 24px; font-weight: 700; color: var(--honey-dark); }
.stat .label { font-size: 13px; color: var(--muted); }

table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--honey-light); color: var(--honey-dark); font-weight: 600; }
tr:nth-child(even) td { background: #fdfbf5; }

.tag { display: inline-block; padding: 3px 12px; border-radius: 14px; font-size: 13px; font-weight: 600; }
.tag-good { background: #e6f2e0; color: #4a7c2a; }
.tag-warn { background: var(--warn-bg); color: #8a5a12; }
.tag-bad { background: #fde8e8; color: #c0392b; }

.role-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin: 20px 0; }
@media (max-width: 700px) { .role-grid { grid-template-columns: 1fr; } }
.role-card { border-radius: 14px; padding: 26px; }
.role-ai { background: linear-gradient(135deg, #eef4ff, #e0eaff); border: 1px solid #c5d5f5; }
.role-human { background: linear-gradient(135deg, #fff5ec, #ffe9d9); border: 1px solid #f0c990; }
.role-card h3 { font-size: 19px; margin-bottom: 12px; }
.role-ai h3 { color: #3b5fc0; }
.role-human h3 { color: #b56a10; }
.role-card ul { padding-left: 20px; }
.role-card li { margin-bottom: 8px; font-size: 15px; }

.flow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; margin: 24px 0; }
.flow .step { background: #fff; border: 2px solid var(--honey); border-radius: 12px; padding: 14px 18px; font-size: 14px; text-align: center; max-width: 210px; }
.flow .arrow { color: var(--honey); font-size: 22px; font-weight: 700; }

.big-sim-banner {
  background: #ffe1e1; border: 2px dashed #e05252; border-radius: 12px;
  padding: 14px 18px; margin: 18px 0; text-align: center;
}
.big-sim-banner .t1 { color: #c0392b; font-weight: 800; font-size: 18px; }
.big-sim-banner .t2 { font-size: 13px; color: #a05252; }

section.info-block { margin-bottom: 18px; }
section.info-block h4 { color: var(--honey-dark); font-size: 16px; margin-bottom: 6px; }
section.info-block ul { padding-left: 22px; }
section.info-block li { margin-bottom: 5px; font-size: 15px; }

.myth { border-left: 4px solid #e05252; background: #fdf3f3; border-radius: 0 10px 10px 0; padding: 12px 16px; margin-bottom: 12px; font-size: 14px; }
.myth b { color: #c0392b; }

footer { text-align: center; color: var(--muted); font-size: 13px; padding: 30px 0 40px; }
.hidden { display: none; }
a { color: var(--honey-dark); }