/* 网络工具页（/network-tools 及各工具）。表单与结果尺寸沿用 WHOIS 查询页，颜色取 site-theme.css 的站点变量。 */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { min-height: 100vh; }

.ipkk-nettool {
  --nt-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
  --nt-soft: var(--ipkk-muted, #686c69);
  --nt-line: var(--ipkk-line, #e2e5e3);
  --nt-good: #107e41;
  --nt-warn: #b45309;
  --nt-bad: #c8302b;
}
.ipkk-nettool .mono { font-family: var(--nt-mono); }
.ipkk-nettool .wrap > .card { padding: 32px; }

/* ── 表单 ── */
.ipkk-nettool .search-form { display: flex; gap: 10px; align-items: stretch; }
.ipkk-nettool .search-input {
  flex: 1; min-width: 0; height: 56px; padding: 14px 18px; font: 16px var(--nt-mono); color: var(--ipkk-ink);
  border: 1px solid #d8ddd9; border-radius: 10px; background: #f8f9f8; transition: border-color .18s, box-shadow .18s;
}
.ipkk-nettool .search-input:focus, .ipkk-nettool .nt-select:focus { outline: none; border-color: #13994f; background: #fff; box-shadow: 0 0 0 4px rgb(19 153 79 / 10%); }
.ipkk-nettool .nt-textarea { height: auto; min-height: 104px; resize: vertical; line-height: 1.6; }
.ipkk-nettool .search-btn { flex-shrink: 0; min-height: 56px; padding: 14px 32px; border: 0; font-size: 16px; font-weight: 700; cursor: pointer; }
.ipkk-nettool .search-btn:disabled { opacity: .6; cursor: not-allowed; }
.ipkk-nettool .nt-form:has(.nt-textarea) .search-btn { align-self: flex-start; }
.ipkk-nettool .nt-select { height: 56px; padding: 0 14px; border: 1px solid #d8ddd9; border-radius: 10px; background: #f8f9f8; color: var(--ipkk-ink); font: 15px var(--nt-mono); }
.ipkk-nettool .search-hint { margin-top: 12px; font-size: 13px; color: var(--nt-soft); line-height: 1.7; }
.ipkk-nettool .search-hint button { padding: 0; border: 0; background: none; color: inherit; font: inherit; font-family: var(--nt-mono); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.ipkk-nettool .search-hint button:hover { color: var(--ipkk-accent); }

.ipkk-nettool .msg { display: none; margin-top: 18px; padding: 14px 18px; border-radius: 10px; font-size: 14px; line-height: 1.7; }
.ipkk-nettool .msg.show { display: block; }
.ipkk-nettool .msg.info { background: #f5f6f5; border: 1px solid var(--nt-line); color: var(--nt-soft); }
.ipkk-nettool .msg.error { background: #fbe9e8; border: 1px solid #f3c9c6; color: var(--nt-bad); }

/* ── 结果 ── */
.ipkk-nettool .nt-result:not(:empty) { margin-top: 24px; }
.ipkk-nettool .nt-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding-bottom: 14px; border-bottom: 1px solid var(--nt-line); }
.ipkk-nettool .nt-target { font-size: 22px; font-weight: 700; overflow-wrap: anywhere; }
.ipkk-nettool .nt-subhead { margin: 26px 0 10px; font-size: 16px; font-weight: 650; color: var(--ipkk-ink); }
.ipkk-nettool .nt-kv .kv-row { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 16px; padding: 14px 2px; border-bottom: 1px solid #eef0ee; }
.ipkk-nettool .nt-kv .kv-row:last-child { border-bottom: 0; }
.ipkk-nettool .kv-k { font-size: 14px; color: var(--nt-soft); }
.ipkk-nettool .kv-v { font-size: 15px; font-weight: 600; color: var(--ipkk-ink); overflow-wrap: anywhere; }
.ipkk-nettool .kv-v.mono { font-weight: 500; }
.ipkk-nettool .kv-v.bad { color: var(--nt-bad); }
.ipkk-nettool .kv-note { display: inline-block; margin-left: 8px; font: 400 13px var(--ipkk-font); color: var(--nt-soft); }
.ipkk-nettool td .kv-note { display: block; margin: 2px 0 0; }
.ipkk-nettool .kv-note.soon { color: var(--nt-warn); }
.ipkk-nettool .kv-note.past { color: var(--nt-bad); }

.ipkk-nettool .nt-badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap; }
.ipkk-nettool .nt-badge.ok { background: #e7f4ec; color: var(--nt-good); }
.ipkk-nettool .nt-badge.bad { background: #fbe9e8; color: var(--nt-bad); }
.ipkk-nettool .nt-badge.info { background: #eef1f0; color: #3f4a44; }
.ipkk-nettool .nt-badge.neutral { background: #f1f2f1; color: var(--nt-soft); }

.ipkk-nettool .table-scroll { overflow-x: auto; }
.ipkk-nettool .nt-table { width: 100%; border-collapse: collapse; font-size: 14px; line-height: 1.6; }
.ipkk-nettool .nt-table th, .ipkk-nettool .nt-table td { padding: 10px 12px; border-bottom: 1px solid #eef0ee; text-align: left; vertical-align: top; }
.ipkk-nettool .nt-table th { background: #f5f6f5; color: var(--nt-soft); font-weight: 600; white-space: nowrap; }
.ipkk-nettool .nt-table td { color: var(--ipkk-ink); font-variant-numeric: tabular-nums; }
.ipkk-nettool .nt-break { overflow-wrap: anywhere; word-break: break-word; }
.ipkk-nettool .nt-table tr.is-proxy td { background: #fafbfa; color: var(--nt-soft); }
.ipkk-nettool .nt-tag { display: inline-block; margin-left: 6px; padding: 1px 7px; border-radius: 6px; background: #eef1f0; color: var(--nt-soft); font: 400 12px var(--ipkk-font); }
.ipkk-nettool .nt-inline { display: block; margin-top: 4px; font: 12px var(--nt-mono); color: var(--nt-soft); overflow-wrap: anywhere; }

.ipkk-nettool .nt-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.ipkk-nettool .nt-chip { padding: 3px 10px; border: 1px solid var(--nt-line); border-radius: 6px; background: #fafbfa; font-size: 13px; }
.ipkk-nettool .nt-code { padding: 12px 14px; border: 1px solid var(--nt-line); border-radius: 8px; background: #f8f9f8; font: 13px/1.6 var(--nt-mono); white-space: pre-wrap; overflow-wrap: anywhere; }
.ipkk-nettool .nt-code + .nt-kv { margin-top: 6px; }
.ipkk-nettool .nt-muted { color: var(--nt-soft); font-size: 13px; line-height: 1.7; }
.ipkk-nettool .nt-warn { padding: 12px 14px; border-radius: 8px; background: #fdf3e6; color: #8a4b08; font-size: 14px; line-height: 1.7; }
.ipkk-nettool .nt-result > .nt-warn { margin-top: 14px; }

.ipkk-nettool .nt-resolver { margin-top: 18px; padding: 16px 18px; border: 1px solid var(--nt-line); border-radius: 12px; }
.ipkk-nettool .nt-resolver-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 4px 12px; margin-bottom: 10px; font-size: 15px; }
.ipkk-nettool .nt-answers { display: grid; list-style: none; }
.ipkk-nettool .nt-answers li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 2px 12px; padding: 10px 0; border-top: 1px solid #eef0ee; font-size: 14px; }
.ipkk-nettool .nt-answer-type { grid-row: span 2; color: var(--nt-soft); font: 600 13px var(--nt-mono); }
.ipkk-nettool .nt-answer-meta { color: var(--nt-soft); font-size: 12px; overflow-wrap: anywhere; }

.ipkk-nettool .nt-split { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 14px; color: var(--nt-soft); }
.ipkk-nettool .nt-split .nt-select { height: 40px; }
.ipkk-nettool .nt-split + div > .nt-muted { margin-top: 8px; }

/* ── 请求头 ── */
.ipkk-nettool .nt-summary { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; margin-bottom: 16px; font-size: 14px; color: var(--nt-soft); }
.ipkk-nettool .nt-summary strong { color: var(--ipkk-ink); }
.ipkk-nettool .nt-btn-ghost { margin-left: auto; min-height: 36px; padding: 7px 14px; border: 1px solid var(--nt-line); border-radius: 8px; background: #f8f9f8; color: #636c65; font: inherit; cursor: pointer; }
.ipkk-nettool .nt-btn-ghost:hover { border-color: #b6d3bf; background: var(--ipkk-accent-soft); color: var(--ipkk-accent); }

/* ── 端口 ── */
.ipkk-nettool .nt-port-target { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; font-size: 15px; }
.ipkk-nettool .nt-port-target strong { font-size: 20px; }
.ipkk-nettool .nt-ports { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 8px; margin-top: 18px; }
.ipkk-nettool .nt-port { display: flex; align-items: center; gap: 6px; padding: 9px 12px; border: 1px solid var(--nt-line); border-radius: 8px; font-size: 14px; cursor: pointer; }
.ipkk-nettool .nt-port:has(input:checked) { border-color: #b6d3bf; background: var(--ipkk-accent-soft); }
.ipkk-nettool .nt-port input { accent-color: var(--ipkk-accent); }
.ipkk-nettool .nt-port-actions { display: flex; gap: 10px; margin-top: 14px; }
.ipkk-nettool .nt-port-custom { max-width: 260px; }

/* ── 汇总页 ── */
.ipkk-nettool .nt-hub { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.ipkk-nettool .wrap > .nt-hub { padding: 24px; }
.ipkk-nettool .nt-hub-item {
  display: grid; align-content: start; gap: 6px; padding: 18px 20px; border: 1px solid var(--nt-line); border-radius: 12px;
  background: #fafbfa; color: var(--ipkk-ink); text-decoration: none;
  transition: border-color .18s, background-color .18s;
}
.ipkk-nettool .nt-hub-item:hover, .ipkk-nettool .nt-hub-item:focus-visible { border-color: #b6d3bf; background-color: var(--ipkk-accent-soft); }
.ipkk-nettool .nt-hub-title { font-size: 16px; font-weight: 650; }
.ipkk-nettool .nt-hub-item:hover .nt-hub-title { color: var(--ipkk-accent); }
.ipkk-nettool .nt-hub-desc { color: var(--nt-soft); font-size: 13px; line-height: 1.7; }
.ipkk-nettool .nt-related a { color: var(--ipkk-accent); }

@media (max-width: 860px) {
  .ipkk-nettool .nt-hub { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .ipkk-nettool .wrap > .card { padding: 20px; }
  .ipkk-nettool .search-form { flex-wrap: wrap; gap: 8px; }
  .ipkk-nettool .search-input { flex-basis: 100%; height: 50px; padding: 12px; font-size: 14px; }
  .ipkk-nettool .nt-textarea { height: auto; }
  .ipkk-nettool .search-btn { flex: 1; min-height: 50px; padding: 12px 18px; font-size: 14px; }
  .ipkk-nettool .nt-select { height: 50px; }
  .ipkk-nettool .nt-target { font-size: 18px; }
  .ipkk-nettool .nt-kv .kv-row { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .ipkk-nettool .nt-hub { grid-template-columns: minmax(0, 1fr); }
  .ipkk-nettool .nt-port-actions { flex-direction: column; }
  .ipkk-nettool .nt-ports { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ipkk-nettool .nt-stack thead { display: none; }
  .ipkk-nettool .nt-stack tr { display: grid; gap: 4px; padding: 10px 0; border-bottom: 1px solid #eef0ee; }
  .ipkk-nettool .nt-stack td { padding: 0; border: 0; }
  .ipkk-nettool .nt-stack td:first-child { font-weight: 600; }
  .ipkk-nettool .nt-port-custom { max-width: none; flex-basis: auto; }
  .ipkk-nettool .nt-resolver { padding: 14px 12px; }
}