* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f0f4f8;
  --card: #ffffff;
  --primary: #1565c0;
  --primary-dark: #0d47a1;
  --success: #2e7d32;
  --danger: #c62828;
  --text: #1a1a2e;
  --muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 16px; }

.header {
  background: linear-gradient(135deg, #1565c0, #0d47a1);
  color: #fff;
  padding: 20px 16px;
  text-align: center;
}

.header h1 { font-size: 1.4rem; font-weight: 600; }
.header p { opacity: .85; font-size: .9rem; margin-top: 4px; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
}

.card h2 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 20px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: .15s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: #fff; color: var(--primary); border: 2px solid var(--primary); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 24px; font-size: 1.15rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: .9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--muted);
}

input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  background: #fff;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(21,101,192,.15);
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }

@media (max-width: 640px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: 10px 8px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: #f8fafc; font-weight: 600; color: var(--muted); font-size: .8rem; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
}

.badge-green { background: #e8f5e9; color: var(--success); }
.badge-blue { background: #e3f2fd; color: var(--primary); }
.badge-gray { background: #f1f5f9; color: var(--muted); }
.badge-danger { background: #ffebee; color: var(--danger); }

.btn-sm { padding: 6px 12px; font-size: .85rem; }

.stat-card {
  text-align: center;
  padding: 16px;
  background: #f8fafc;
  border-radius: 8px;
}

.stat-card .num { font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.stat-card .label { font-size: .85rem; color: var(--muted); margin-top: 4px; }

.nav-tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  margin-bottom: 16px;
  padding-bottom: 4px;
}

.nav-tabs button {
  flex-shrink: 0;
  padding: 10px 16px;
  border: none;
  background: #e2e8f0;
  border-radius: 8px;
  cursor: pointer;
  font-size: .9rem;
  white-space: nowrap;
}

.nav-tabs button.active { background: var(--primary); color: #fff; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: 8px;
  color: #fff;
  font-weight: 500;
  z-index: 9999;
  animation: fadeIn .3s;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }

@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

#reader { border-radius: var(--radius); overflow: hidden; }
#reader video { border-radius: var(--radius); }

.home-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.home-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: .15s;
}

.home-link:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(0,0,0,.12); }
.home-link .icon { font-size: 2.5rem; margin-bottom: 8px; }
.home-link .title { font-size: 1.1rem; font-weight: 600; color: var(--text); }
.home-link .desc { font-size: .85rem; color: var(--muted); margin-top: 4px; }

.qr-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.qr-item {
  text-align: center;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.qr-item canvas { margin: 0 auto 8px; }

.info-box {
  background: #e3f2fd;
  border-left: 4px solid var(--primary);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 16px;
  font-size: .9rem;
}

.hidden { display: none !important; }

.progress-bar {
  height: 8px;
  background: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
  margin-top: 4px;
}

.progress-bar .fill {
  height: 100%;
  background: var(--success);
  border-radius: 4px;
  transition: width .3s;
}

.site-footer {
  text-align: center;
  padding: 24px 16px 32px;
  font-size: .8rem;
  color: var(--muted);
  line-height: 1.8;
}

.site-footer a {
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--primary);
}

.site-footer .beian-police {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 12px;
}

.site-footer .beian-police img {
  width: 14px;
  height: 14px;
}

@media print {
  body * { visibility: hidden; }
  #qr-print-area, #qr-print-area * { visibility: visible; }
  #qr-print-area { position: absolute; left: 0; top: 0; width: 100%; }
}