:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --line: #d9dde5;
  --text: #20242a;
  --muted: #68717d;
  --accent: #1769aa;
  --danger: #b42318;
  --ok: #137333;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

header {
  height: 52px;
  display: flex;
  align-items: center;
  padding: 0 24px;
  background: #1f2933;
  color: #fff;
}

nav {
  display: flex;
  gap: 4px;
  padding: 10px 20px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

nav a {
  color: var(--text);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

nav a:hover {
  background: #edf2f7;
}

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px;
}

h1, h2 {
  margin: 0 0 16px;
  font-size: 20px;
}

h2 {
  font-size: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 16px;
}

.narrow {
  max-width: 420px;
  margin: 60px auto;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stats div {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.stats strong {
  display: block;
  font-size: 26px;
}

.stats span, .muted {
  color: var(--muted);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0 18px;
}

.link-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfe;
}

.link-card p {
  margin: 0 0 10px;
  color: var(--muted);
}

.link-card a {
  display: inline-block;
  margin: 0 10px 8px 0;
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.link-card a:hover {
  text-decoration: underline;
}

.link-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.step-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 14px 0 18px;
}

.step-nav a {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  background: #fff;
  text-decoration: none;
  text-align: center;
}

.step-nav a.current {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.step-nav a.done {
  border-color: #9bd0a2;
  background: #f0f8f1;
  color: var(--ok);
}

form {
  margin: 0 0 18px;
}

.grid-form {
  display: grid;
  grid-template-columns: 1fr 180px auto;
  gap: 12px;
  align-items: end;
}

.grid-form.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 12px;
}

input, textarea, button {
  font: inherit;
}

input, textarea, select {
  width: 100%;
  margin-top: 6px;
  padding: 9px 10px;
  border: 1px solid #bcc5d1;
  border-radius: 6px;
  background: #fff;
}

.domain-action-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
  align-items: stretch;
}

.domain-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border: 1px solid #c8d3e1;
  border-radius: 8px;
  padding: 16px;
  background: #fbfdff;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
}

.domain-card h2 {
  margin: 0 0 4px;
  font-size: 17px;
}

.domain-card-head {
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid #e4e9f1;
}

.domain-card-head p {
  margin: 0;
  line-height: 1.45;
}

.domain-form {
  margin: 0;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.domain-fields,
.region-controls {
  display: grid;
  gap: 12px;
  align-items: end;
}

.domain-fields {
  grid-template-columns: minmax(0, 1.35fr) minmax(160px, .65fr);
}

.domain-card .region-controls {
  grid-template-columns: minmax(180px, .8fr) minmax(0, 1.2fr);
}

.domain-form label,
.domain-fields label,
.region-controls label {
  margin-bottom: 10px;
}

.form-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: auto;
  padding-top: 6px;
}

.domain-form button {
  min-width: 136px;
}

.domain-form-bulk textarea {
  min-height: 120px;
  height: 120px;
}

.sender-action-group,
.sender-status-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.sender-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid #c8d3e1;
  border-radius: 8px;
  padding: 16px;
  background: #fbfdff;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
}

.sender-card h2 {
  margin: 0 0 10px;
  font-size: 17px;
}

.sender-card p {
  margin: 0 0 10px;
}

.sender-card form {
  display: flex;
  flex-direction: column;
  flex: 1;
  margin: 0;
}

.sender-table-wrap {
  min-width: 0;
  overflow-x: auto;
}

.pipeline-single-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.pipeline-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid #c8d3e1;
  border-radius: 8px;
  padding: 16px;
  background: #fbfdff;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
}

.pipeline-card h2 {
  margin: 0 0 10px;
  font-size: 17px;
}

.pipeline-card form {
  display: flex;
  flex-direction: column;
  flex: 1;
  margin: 0;
}

.pipeline-card textarea {
  min-height: 120px;
  height: 120px;
}

.pipeline-table-wrap {
  min-width: 0;
  overflow-x: auto;
}

.aapanel-action-group,
.aapanel-log-group,
.aapanel-single-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.aapanel-single-group {
  grid-template-columns: minmax(0, 1fr);
}

.aapanel-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid #c8d3e1;
  border-radius: 8px;
  padding: 16px;
  background: #fbfdff;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.04);
}

.aapanel-card h2 {
  margin: 0 0 10px;
  font-size: 17px;
}

.aapanel-card form {
  display: flex;
  flex-direction: column;
  flex: 1;
  margin: 0;
}

.aapanel-card textarea {
  min-height: 120px;
  height: 120px;
}

.aapanel-table-wrap {
  min-width: 0;
  overflow-x: auto;
}

textarea {
  resize: vertical;
  min-height: 96px;
}

button {
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  cursor: pointer;
}

button.secondary {
  background: #4b5563;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  text-decoration: none;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.queue-status-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.status-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfe;
}

.status-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.status-card strong {
  display: block;
  font-size: 20px;
}

.queue-message {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  margin: 12px 0 18px;
  background: #f8fafc;
}

.manual-command {
  border: 1px solid #f0c36d;
  border-radius: 8px;
  padding: 14px;
  margin: 16px 0;
  background: #fff8e6;
}

.manual-command textarea {
  min-height: 58px;
  font-family: Consolas, Monaco, "Courier New", monospace;
  word-break: break-all;
}

.queue-recent {
  margin-top: 10px;
}

.pagination {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.pagination a,
.pagination strong {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  text-decoration: none;
}

.pagination strong {
  border-color: var(--accent);
  background: #edf6ff;
  color: var(--accent);
}

.pagination span {
  color: var(--muted);
}

.validation-results {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  margin: 14px 0 18px;
  background: #fff;
}

.validation-item {
  border-left: 4px solid var(--line);
  padding: 8px 10px;
  margin-top: 8px;
  background: #f8fafc;
}

.validation-item.ok {
  border-left-color: var(--ok);
}

.validation-item.fail {
  border-left-color: var(--danger);
}

.validation-item strong,
.validation-item span {
  display: block;
}

.validation-item span {
  margin-top: 4px;
  color: var(--muted);
  overflow-wrap: anywhere;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 9px 8px;
  vertical-align: top;
}

th {
  background: #f8fafc;
  color: #44505c;
  font-weight: 700;
}

.wrap {
  max-width: 420px;
  overflow-wrap: anywhere;
}

.badge {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 8px;
  background: #f8fafc;
}

.alert, .notice {
  border-radius: 6px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.alert {
  color: var(--danger);
  background: #fff1f0;
  border: 1px solid #ffccc7;
}

.notice {
  color: var(--ok);
  background: #edf7ed;
  border: 1px solid #b7dfb9;
}

code {
  background: #eef2f6;
  border: 1px solid #d8dee8;
  border-radius: 4px;
  padding: 1px 4px;
}

@media (max-width: 760px) {
  main {
    padding: 12px;
  }

  .stats, .grid-form, .grid-form.two, .link-grid, .step-nav, .domain-fields, .region-controls, .queue-status-grid, .domain-action-group, .sender-action-group, .sender-status-group, .pipeline-single-group, .aapanel-action-group, .aapanel-log-group, .aapanel-single-group {
    grid-template-columns: 1fr;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}