:root {
  --tools-bg: #f3f5f9;
  --tools-card: #fff;
  --tools-text: #1f2937;
  --tools-muted: #6b7280;
  --tools-line: #e5e7eb;
  --tools-primary: #2563eb;
  --tools-primary-strong: #1d4ed8;
  --tools-top: #1a1f2c;
}
* { box-sizing: border-box; }
body.tools-page {
  margin: 0;
  min-height: 100vh;
  background: var(--tools-bg);
  color: var(--tools-text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}
a { color: inherit; text-decoration: none; }
button, textarea { font: inherit; }
.tools-topbar {
  background: linear-gradient(90deg, #171b27, #22283a 55%, #1a1f2c);
  color: rgba(255,255,255,.86);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.tools-topbar-inner {
  max-width: 1180px; margin: 0 auto; padding: 0 20px; height: 58px;
  display: flex; align-items: center; gap: 24px;
}
.tools-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; }
.tools-brand-mark {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(145deg, #3b82f6, #1d4ed8); font-size: 13px;
}
.tools-nav { display: flex; align-items: center; gap: 6px; flex: 1; }
.tools-nav a {
  padding: 8px 14px; border-radius: 999px; color: rgba(255,255,255,.72); font-weight: 600;
}
.tools-nav a:hover { color: #fff; background: rgba(255,255,255,.06); }
.tools-nav a.is-active { color: #fff; background: rgba(59,130,246,.28); }
.tools-top-actions { display: flex; gap: 8px; align-items: center; }
.tools-btn-ghost, .tools-btn-outline, .tools-btn-primary, .tools-primary {
  border: 0; border-radius: 8px; padding: 8px 14px; cursor: pointer; font-weight: 650;
}
.tools-btn-ghost { background: #fff; color: #111827; }
.tools-btn-primary { background: var(--tools-primary); color: #fff; }
.tools-btn-outline {
  background: #fff; color: #374151; border: 1px solid var(--tools-line);
}
.tools-primary {
  background: var(--tools-primary); color: #fff; padding: 10px 18px;
}
.tools-primary:disabled { opacity: .6; cursor: not-allowed; }
.tools-primary:hover:not(:disabled) { background: var(--tools-primary-strong); }
.tools-main { max-width: 1180px; margin: 0 auto; padding: 22px 20px 40px; display: grid; gap: 16px; }
.tools-card {
  background: var(--tools-card); border: 1px solid rgba(226,232,240,.9);
  border-radius: 14px; padding: 18px 18px 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
}
.tools-field { display: grid; gap: 8px; margin-bottom: 14px; }
.tools-field > label { font-weight: 700; color: #111827; }
.tools-hint { margin: 0; color: var(--tools-muted); font-size: 12.5px; }
.tools-seg { display: inline-flex; gap: 0; border: 1px solid var(--tools-line); border-radius: 10px; overflow: hidden; background: #f8fafc; }
.tools-seg-btn {
  border: 0; background: transparent; padding: 9px 18px; cursor: pointer; color: #4b5563; font-weight: 650;
}
.tools-seg-btn.is-active { background: var(--tools-primary); color: #fff; }
.tools-textarea {
  width: 100%; min-height: 160px; resize: vertical; border: 1px solid var(--tools-line);
  border-radius: 10px; padding: 12px 14px; outline: none; line-height: 1.5;
}
.tools-textarea:focus { border-color: #93c5fd; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.tools-actions { display: flex; align-items: center; gap: 12px; }
.tools-muted { color: var(--tools-muted); font-size: 13px; }
.tools-result-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px;
}
.tools-result-head h2 { margin: 0; font-size: 16px; }
.tools-result-actions { display: flex; gap: 8px; }
.tools-table-wrap { overflow: auto; border: 1px solid var(--tools-line); border-radius: 10px; }
.tools-table { width: 100%; border-collapse: collapse; min-width: 980px; }
.tools-table th, .tools-table td {
  padding: 10px 12px; border-bottom: 1px solid var(--tools-line); text-align: left; white-space: nowrap;
}
.tools-table th { background: #f8fafc; color: #475569; font-size: 12px; font-weight: 700; }
.tools-empty-row td { text-align: center; color: var(--tools-muted); padding: 36px 12px; }
.tools-ok { color: #059669; font-weight: 700; }
.tools-bad { color: #dc2626; font-weight: 700; }
.tools-queued { color: #64748b; font-weight: 650; }
.tools-testing { color: #2563eb; font-weight: 800; }
.tools-row-queued td { color: #64748b; }
.tools-row-testing {
  background: linear-gradient(90deg, rgba(37,99,235,.08), rgba(37,99,235,.02));
}
.tools-row-testing td { border-bottom-color: #bfdbfe; }
.tools-spin {
  display: inline-block;
  width: 12px; height: 12px; margin-left: 6px;
  border: 2px solid rgba(37,99,235,.25);
  border-top-color: #2563eb;
  border-radius: 50%;
  vertical-align: -2px;
  animation: tools-spin .7s linear infinite;
}
@keyframes tools-spin { to { transform: rotate(360deg); } }
.tools-btn-user {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 8px;
  padding: 8px 14px;
  font-weight: 650;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tools-btn-user:hover { background: rgba(255,255,255,.2); color: #fff; }
.tools-sub {
  margin-top: 2px;
  color: var(--tools-muted);
  font-size: 12px;
  font-weight: 500;
  white-space: normal;
  max-width: 220px;
}
.tools-realip-cell { white-space: normal; }
.tools-btn-retest {
  border: 1px solid var(--tools-line);
  background: #fff;
  color: #1d4ed8;
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
  font-weight: 650;
  font-size: 12px;
}
.tools-btn-retest:hover:not(:disabled) { background: #eff6ff; }
.tools-btn-retest:disabled { opacity: .5; cursor: not-allowed; }
@media (max-width: 860px) {
  .tools-topbar-inner { height: auto; padding: 12px 14px; flex-wrap: wrap; }
  .tools-nav { order: 3; width: 100%; overflow: auto; }
  .tools-result-head { flex-direction: column; align-items: flex-start; }
}