:root {
  --navy: #0e3b52;
  --teal: #0f7b86;
  --teal-soft: #e6f3f4;
  --ink: #16232e;
  --muted: #5c6b7a;
  --bg: #ffffff;
  --surface: #f6f9fb;
  --line: #e2eaf0;
  --amber: #b45309;
  --amber-soft: #fdf6e7;
  --radius: 10px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--teal); }
a:hover { color: var(--navy); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
header.site {
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 40;
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand {
  font-weight: 700;
  font-size: 19px;
  color: var(--navy);
  text-decoration: none;
  letter-spacing: -0.2px;
  white-space: nowrap;
}
.brand span { color: var(--teal); }
.navlinks { display: flex; gap: 18px; margin-left: auto; flex-wrap: wrap; }
.navlinks a {
  color: var(--ink);
  text-decoration: none;
  font-size: 14.5px;
  font-weight: 500;
  padding: 4px 0;
}
.navlinks a:hover, .navlinks a.active { color: var(--teal); }
.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 14px;
  cursor: pointer;
}

/* ---------- Notice bar ---------- */
.notice {
  background: var(--amber-soft);
  border-bottom: 1px solid #f0e0c0;
  font-size: 13.5px;
  color: #7c4a10;
  padding: 9px 24px;
  text-align: center;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, #0e3b52 0%, #12566f 55%, #0f7b86 100%);
  color: #fff;
  padding: 68px 0 60px;
}
.hero h1 {
  font-size: 40px;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.8px;
  max-width: 780px;
}
.hero p.lede {
  font-size: 18px;
  margin: 0 0 28px;
  max-width: 700px;
  color: #d8e9ee;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 44px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.18);
  padding-top: 24px;
}
.hero-stats div { font-size: 14px; color: #cfe3e8; }
.hero-stats b { display: block; font-size: 26px; color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--teal);
  color: #fff;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn:hover { background: #0c646d; color: #fff; }
.btn.ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn.ghost:hover { background: rgba(255,255,255,0.12); color: #fff; }
.btn.dark { background: var(--navy); }

/* ---------- Sections ---------- */
section { padding: 60px 0; }
section.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2.section-title { font-size: 29px; margin: 0 0 12px; letter-spacing: -0.5px; }
.intro { color: var(--muted); max-width: 760px; margin: 0 0 32px; font-size: 16.5px; }

.grid { display: grid; gap: 20px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 17.5px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .kicker {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  color: var(--teal);
  font-weight: 700;
  margin-bottom: 8px;
}

/* ---------- Matcher ---------- */
.matcher {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 1px 3px rgba(16,35,46,0.05);
}
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 14.5px; margin-bottom: 6px; }
.field select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 15px;
  background: #fff;
  color: var(--ink);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.results { margin-top: 28px; }
.result {
  border: 1px solid var(--line);
  border-left: 4px solid var(--teal);
  border-radius: 8px;
  padding: 18px 20px;
  margin-bottom: 14px;
  background: #fff;
}
.result.china-only { border-left-color: var(--amber); }
.result.both { border-left-color: #94a3b8; }
.result h4 { margin: 0 0 4px; font-size: 17px; }
.result .sub { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
.result dl { display: grid; grid-template-columns: 150px 1fr; gap: 4px 16px; margin: 0; font-size: 14.5px; }
.result dt { color: var(--muted); font-weight: 600; }
.result dd { margin: 0; }
.tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 9px;
  border-radius: 20px;
  background: var(--teal-soft);
  color: var(--teal);
  margin-left: 8px;
}
.tag.warn { background: var(--amber-soft); color: var(--amber); }
.tag.muted { background: #eef2f5; color: #64748b; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; min-width: 720px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--surface); font-size: 13px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--muted); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafcfe; }
.cn { color: var(--muted); font-size: 13px; }

/* ---------- Steps ---------- */
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps li {
  counter-increment: s;
  position: relative;
  padding-left: 52px;
  margin-bottom: 26px;
}
.steps li::before {
  content: counter(s);
  position: absolute;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 15px;
}
.steps h3 { margin: 4px 0 6px; font-size: 17px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---------- Callout ---------- */
.callout {
  background: var(--amber-soft);
  border: 1px solid #f0e0c0;
  border-radius: var(--radius);
  padding: 18px 20px;
  font-size: 15px;
  color: #6f4210;
}
.callout strong { color: #6f4210; }
.callout.blue { background: var(--teal-soft); border-color: #c6e2e5; color: #0b4a51; }

/* ---------- Lists ---------- */
ul.plain { padding-left: 20px; color: var(--muted); }
ul.plain li { margin-bottom: 6px; }
ul.check { list-style: none; padding-left: 0; }
ul.check li { padding-left: 26px; position: relative; margin-bottom: 8px; color: var(--muted); }
ul.check li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 700; }
ul.cross li::before { content: "×"; color: var(--amber); font-size: 17px; }

/* ---------- Form ---------- */
form input, form textarea, form select {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  margin-bottom: 14px;
}
form textarea { min-height: 130px; }

/* ---------- Footer ---------- */
footer.site {
  background: var(--navy);
  color: #c6d9de;
  padding: 44px 0 34px;
  font-size: 14px;
}
footer.site a { color: #a9d6dc; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
footer h4 { color: #fff; font-size: 15px; margin: 0 0 12px; }
footer ul { list-style: none; padding: 0; margin: 0; }
footer li { margin-bottom: 7px; }
.disclaimer {
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 30px;
  padding-top: 20px;
  font-size: 12.5px;
  color: #9fbcc4;
  line-height: 1.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .g3, .g4, .g2, .footer-grid { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 31px; }
  .hero { padding: 48px 0 42px; }
  .navlinks { display: none; }
  .navlinks.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 14px 24px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 6px 16px rgba(0,0,0,0.06);
  }
  .nav-toggle { display: block; }
  .result dl { grid-template-columns: 1fr; gap: 2px; }
  .result dt { margin-top: 8px; }
}