/* Set 1: scene-driven horizontal bands */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1b2a3a;
  background: #f4f8fc;
  line-height: 1.75;
}
img { max-width: 100%; }
a { color: #0b4f8a; }
.site-top {
  background: #0b3a62;
  color: #fff;
  border-bottom: 4px solid #4aa3df;
}
.site-top-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 22px 10px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
  letter-spacing: 0.04em;
}
.brand svg { display: block; }
nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
}
nav a {
  color: #d7e8f6;
  text-decoration: none;
  padding-bottom: 8px;
  border-bottom: 2px solid transparent;
  font-size: 15px;
}
nav a.current { color: #fff; border-bottom-color: #8fd0ff; }
.band { padding: 56px 22px; }
.band-inner { max-width: 1120px; margin: 0 auto; }
.band-hero {
  background: linear-gradient(180deg, #dceefb 0%, #f4f8fc 100%);
  padding-top: 40px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}
h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 34px;
  line-height: 1.35;
  color: #0b3a62;
  margin-bottom: 18px;
  font-weight: 600;
}
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 26px;
  color: #0b3a62;
  margin-bottom: 16px;
  font-weight: 600;
}
.lead { font-size: 18px; margin-bottom: 22px; }
.btn {
  display: inline-block;
  background: #0b4f8a;
  color: #fff;
  text-decoration: none;
  padding: 14px 26px;
  border-radius: 4px;
  font-size: 17px;
  font-weight: 600;
}
.btn:hover { background: #08365f; }
.btn-ghost {
  display: inline-block;
  margin-left: 12px;
  padding: 14px 20px;
  color: #0b4f8a;
  text-decoration: none;
  border-bottom: 1px solid #0b4f8a;
}
.hero-panel {
  background: #fff;
  border: 1px solid #c5dbeb;
  padding: 22px;
}
.hero-panel h3 { font-size: 16px; margin-bottom: 10px; color: #0b3a62; }
.hero-panel ul { padding-left: 18px; }
.band-scene { background: #fff; border-top: 1px solid #d5e4f0; border-bottom: 1px solid #d5e4f0; }
.scene-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
  align-items: start;
  padding: 28px 0;
  border-bottom: 1px dashed #c9d8e6;
}
.scene-row:last-child { border-bottom: 0; }
.scene-mark {
  min-height: 120px;
  background: #e7f3fb;
  display: flex;
  align-items: center;
  justify-content: center;
}
.band-alt { background: #eaf4fb; }
.band-plain { background: #f4f8fc; }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 14px 22px; }
table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  margin: 16px 0 22px;
}
th, td {
  border: 1px solid #c5dbeb;
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
th { background: #0b3a62; color: #fff; font-weight: 600; }
.cta-strip {
  background: #0b3a62;
  color: #fff;
}
.cta-strip h2 { color: #fff; }
.cta-strip .btn { background: #4aa3df; color: #08365f; }
.faq dt {
  font-weight: 700;
  margin-top: 18px;
  color: #0b3a62;
}
.faq dd { margin: 8px 0 0; }
.note {
  background: #fff8e8;
  border-left: 4px solid #d4a017;
  padding: 12px 14px;
  margin: 16px 0;
}
footer {
  background: #071f35;
  color: #c9d8e6;
  padding: 36px 22px 28px;
  font-size: 14px;
}
.footer-inner { max-width: 1120px; margin: 0 auto; }
footer nav { margin: 12px 0 18px; }
footer nav a { color: #8fd0ff; margin-right: 16px; }
.safe { margin-bottom: 12px; }
.legal { color: #8aa0b5; }
@media (max-width: 860px) {
  .site-top-inner, .hero-grid, .scene-row { display: block; }
  nav ul { margin-top: 12px; flex-wrap: wrap; gap: 16px; }
  h1 { font-size: 26px; }
  .btn-ghost { display: inline-block; margin: 12px 0 0; }
}