:root {
  --bg: #f3f6f8;
  --surface: #ffffff;
  --ink: #15202b;
  --muted: #5b6b7a;
  --line: #d7e0e8;
  --brand: #1f7a8c;
  --brand-dark: #155e6d;
  --accent: #e8f4f7;
  --max: 1080px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: linear-gradient(180deg, #eaf3f6 0%, var(--bg) 220px);
  line-height: 1.7;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

.topbar {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
  font-size: 20px;
  text-decoration: none;
}
.brand img { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; }
.nav { display: flex; gap: 20px; flex-wrap: wrap; }
.nav a { color: var(--muted); font-size: 15px; text-decoration: none; }
.nav a:hover, .nav a.active { color: var(--brand-dark); }

.hero {
  padding: 56px 0 40px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}
.hero h1 {
  margin: 0 0 12px;
  font-size: 40px;
  line-height: 1.25;
}
.hero .lead { color: var(--muted); font-size: 17px; margin: 0 0 24px; }
.hero-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 12px 40px rgba(21, 32, 43, 0.06);
}
.hero-panel h2 { margin: 0 0 12px; font-size: 20px; }
.hero-panel ul { margin: 0; padding-left: 18px; color: var(--muted); }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 15px;
  text-decoration: none;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); text-decoration: none; }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); text-decoration: none; }

.section { padding: 36px 0; }
.section h2 {
  margin: 0 0 8px;
  font-size: 28px;
}
.section .sub {
  margin: 0 0 24px;
  color: var(--muted);
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.shot {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.shot .mock {
  min-height: 220px;
  background:
    linear-gradient(135deg, #d9eef3, #f7fbfc 55%, #e8f4f7),
    var(--accent);
  padding: 20px;
}
.shot .mock-title {
  font-size: 13px;
  color: var(--brand-dark);
  margin-bottom: 10px;
}
.shot .mock-box {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  color: var(--muted);
  font-size: 13px;
}
.shot .cap { padding: 14px 16px; font-size: 14px; color: var(--muted); }

.prose {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px 32px;
}
.prose h1 { margin-top: 0; font-size: 28px; }
.prose h2 { font-size: 20px; margin-top: 28px; }
.prose p, .prose li { color: #334155; }
.note {
  background: #fff8e8;
  border: 1px solid #f0dfb0;
  color: #7a5b10;
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin: 16px 0;
}

.site-footer {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 28px 0 36px;
  color: var(--muted);
  font-size: 13px;
}
.site-footer .row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.site-footer a { color: var(--muted); margin-right: 14px; }
.site-footer .beian a { margin-right: 12px; }
.site-footer .beian a:hover { color: var(--brand); }
.beian-police,
a[data-police-link] {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  vertical-align: middle;
}
.beian-police-icon {
  width: 16px;
  height: 16px;
  display: block;
  flex-shrink: 0;
}

@media (max-width: 860px) {
  .hero, .grid-3, .shot-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
}