* {
  box-sizing: border-box;
}

:root {
  --bg: #f3f6f8;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --border: #d7dee8;
  --text: #172033;
  --muted: #657386;
  --primary: #0f766e;
  --primary-strong: #115e59;
  --secondary: #334155;
  --danger: #b42318;
  --accent: #b7791f;
  --shadow: 0 18px 48px rgba(23, 32, 51, 0.11);
}

body {
  margin: 0;
  font-family: Arial, "Microsoft YaHei", sans-serif;
  background: linear-gradient(180deg, #eef4f7 0%, #fbfcf7 100%);
  color: var(--text);
}

.shell,
.user-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.admin-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
}

.admin-nav button {
  border: 1px solid #d5e2ec;
  background: #ffffff;
  color: var(--text);
}

.admin-nav button.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #ffffff;
}

.admin-section.hidden {
  display: none;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 14px;
  font-size: 30px;
  line-height: 1.16;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: 18px;
  letter-spacing: 0;
}

.panel,
.receiver-panel,
.result-card {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.panel {
  padding: 18px;
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.stat-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat-card {
  min-height: 86px;
  border: 1px solid #d7e5e2;
  border-radius: 8px;
  padding: 14px;
  background: #f7fbfa;
}

.stat-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.stat-card strong {
  color: var(--primary-strong);
  font-size: 26px;
  line-height: 1.1;
}

label {
  display: block;
  font-weight: 700;
}

input,
textarea,
button,
select {
  font: inherit;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  padding: 11px 12px;
  background: #fff;
  color: var(--text);
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

textarea {
  min-height: 180px;
  resize: vertical;
}

button {
  min-height: 42px;
  border: 0;
  border-radius: 6px;
  padding: 10px 16px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  white-space: nowrap;
}

button:hover:not(:disabled) {
  background: var(--primary-strong);
}

button.secondary {
  background: var(--secondary);
}

button.secondary:hover:not(:disabled) {
  background: #1f2937;
}

button.danger {
  background: var(--danger);
}

button.small {
  min-height: 32px;
  padding: 6px 10px;
  font-size: 14px;
}

button:disabled {
  background: #94a3b8;
  cursor: not-allowed;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto minmax(100px, 140px) auto;
  gap: 10px;
  align-items: end;
  margin-bottom: 12px;
}

.phone-toolbar {
  grid-template-columns: minmax(220px, 260px) minmax(100px, 140px);
  justify-content: start;
}

.field-inline {
  display: grid;
  gap: 6px;
}

.field-inline span,
.check-row {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.check-row {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  gap: 8px;
}

.check-row input {
  width: auto;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 12px;
}

.page-jump {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.page-jump input {
  width: 86px;
  min-height: 34px;
  padding: 6px 8px;
}

.status {
  min-height: 24px;
  color: var(--muted);
}

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

.code {
  margin-bottom: 0;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 0;
  color: var(--primary);
  overflow-wrap: anywhere;
}

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

th,
td {
  border-bottom: 1px solid #e2e8f0;
  padding: 9px;
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.user-page {
  min-height: 100vh;
}

.user-shell {
  min-height: 100vh;
  display: grid;
  align-content: center;
  gap: 18px;
  padding-top: 40px;
  padding-bottom: 40px;
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr);
  gap: 26px;
  align-items: stretch;
}

.hero-copy {
  display: flex;
  min-height: 330px;
  flex-direction: column;
  justify-content: center;
  padding: 4px 8px;
}

.eyebrow {
  width: fit-content;
  margin-bottom: 14px;
  border: 1px solid rgba(15, 118, 110, 0.2);
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--primary-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero-copy h1 {
  max-width: 440px;
  margin-bottom: 18px;
  font-size: 42px;
}

.trust-strip {
  display: flex;
  width: min(100%, 420px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.trust-strip span {
  flex: 1 1 0;
  min-width: 0;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.trust-strip span + span {
  border-left: 1px solid var(--border);
}

.receiver-panel {
  padding: 24px;
  box-shadow: var(--shadow);
}

.field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.field-head span {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.receiver-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 12px;
}

.receiver-actions button {
  width: 100%;
}

.status-card {
  margin: 16px 0 0;
  border: 1px solid #dbe5ee;
  border-radius: 8px;
  padding: 12px;
  background: var(--surface-soft);
}

.result-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.result-card {
  display: flex;
  min-height: 146px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
}

.result-main {
  min-width: 0;
  flex: 1 1 auto;
}

.result-label {
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.result-content {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
}

.result-value {
  margin-bottom: 0;
  font-size: 28px;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.copy-button {
  min-height: 34px;
  flex: 0 0 auto;
  border: 1px solid #b9d7d1;
  padding: 7px 12px;
  background: #e8f6f2;
  color: var(--primary-strong);
  font-size: 13px;
}

.copy-button:hover:not(:disabled) {
  border-color: var(--primary);
  background: #d7f0ea;
}

.copy-button:disabled {
  border-color: #d1d8e2;
  background: #edf1f5;
  color: #8b98a8;
}

.result-meta {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.result-badge {
  border-radius: 999px;
  padding: 6px 9px;
  background: #edf7f6;
  color: var(--primary-strong);
  font-size: 11px;
  font-weight: 800;
}

.code-card {
  border-color: rgba(15, 118, 110, 0.34);
  background: linear-gradient(135deg, #ffffff 0%, #f1fbf8 100%);
}

.code-content {
  align-items: baseline;
}

.code-card .code {
  color: #0f766e;
}

.code-copy {
  border-color: #b7d9cc;
  background: #dff4ec;
}

.code-card .result-badge {
  background: #dff4ec;
  color: #0f5f57;
}

@media (max-width: 820px) {
  .user-shell {
    align-content: start;
  }

  .hero-panel,
  .result-board {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    min-height: auto;
  }

  .hero-copy h1 {
    font-size: 34px;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .user-shell,
  .shell {
    padding: 20px 14px;
  }

  .input-row,
  .receiver-actions,
  .toolbar {
    grid-template-columns: 1fr;
  }

  .pagination {
    justify-content: flex-start;
  }

  .receiver-panel,
  .result-card {
    padding: 16px;
  }

  .result-card,
  .result-content {
    align-items: flex-start;
  }

  .result-content {
    flex-wrap: wrap;
  }

  .result-value,
  .code {
    font-size: 26px;
  }
}