* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: #f6f7f9;
  color: #1a1a1a;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

.site-header { max-width: 760px; margin: 0 auto; padding: 40px 20px 12px; }
.site-title { margin: 0 0 6px; font-size: 24px; font-weight: 600; }
.site-sub { margin: 0; color: #666; font-size: 14px; }

.notice {
  max-width: 760px;
  margin: 12px auto 0;
  padding: 10px 14px;
  background: #fff7e6;
  border: 1px solid #ffe0a3;
  border-radius: 8px;
  color: #8a6100;
  font-size: 14px;
}

main { max-width: 760px; margin: 0 auto; padding: 16px 20px 40px; }

.panel {
  padding: 18px;
  background: #fff;
  border: 1px solid #e6e8eb;
  border-radius: 12px;
}

.field-label { display: block; margin-bottom: 8px; color: #666; font-size: 13px; }
.field-row { display: flex; flex-wrap: wrap; gap: 8px; }

input[type="url"] {
  flex: 1 1 320px;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid #d5d8dc;
  border-radius: 8px;
  background: #fff;
  color: inherit;
  font-family: inherit;
  font-size: 15px;
}
input[type="url"]:focus { outline: 2px solid #bcd7f7; border-color: #378add; }
input[type="url"].invalid { border-color: #e24b4a; background: #fdf3f3; }

.btn {
  padding: 10px 16px;
  border: 1px solid #d5d8dc;
  border-radius: 8px;
  background: #fff;
  color: #1a1a1a;
  font-family: inherit;
  font-size: 15px;
  cursor: pointer;
}
.btn:hover { background: #f2f4f6; }
.btn:disabled { opacity: .55; cursor: default; }
.btn-primary { background: #378add; border-color: #378add; color: #fff; }
.btn-primary:hover { background: #2f79c4; }

.hint { margin: 10px 0 0; color: #8a8f96; font-size: 13px; }
.hint code { padding: 1px 5px; background: #f2f4f6; border-radius: 4px; font-size: 12px; }
.error { margin: 10px 0 0; color: #c0392b; font-size: 14px; }
.status { margin: 10px 0 0; color: #55606b; font-size: 14px; }
.btn-raw { margin-top: 10px; font-size: 13px; padding: 6px 12px; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 16px 0;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid #e6e8eb;
  border-radius: 12px;
}
.toolbar-hint { flex: 1 1 100%; color: #8a8f96; font-size: 13px; }

.preview {
  overflow: hidden;
  background: #fff;
  border: 1px solid #e6e8eb;
  border-radius: 12px;
}

.site-footer { max-width: 760px; margin: 0 auto; padding: 0 20px 40px; color: #8a8f96; font-size: 13px; }

#print-root { display: none; }