:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --ink: #142033;
  --muted: #667085;
  --line: #d9e0ea;
  --primary: #1769aa;
  --primary-dark: #0f4d7c;
  --green: #12805c;
  --amber: #b86b00;
  --red: #b42318;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, "Microsoft YaHei", sans-serif;
}

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

button {
  cursor: pointer;
}

.login-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  place-items: center;
  padding: 20px;
  background: #102033;
}

.login-screen.active {
  display: grid;
}

.login-card {
  width: min(420px, 100%);
  display: grid;
  gap: 16px;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.login-brand {
  color: var(--ink);
  margin-bottom: 4px;
}

.login-brand > span {
  background: #102033;
  color: #fff;
}

.error {
  margin: 0;
  color: var(--red);
  min-height: 20px;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}

.sidebar {
  background: #102033;
  color: #fff;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand > span {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #ffffff;
  color: #102033;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: #b8c4d6;
  margin-top: 4px;
}

.nav {
  display: grid;
  gap: 8px;
}

.nav button {
  border: 0;
  border-radius: var(--radius);
  padding: 12px 14px;
  text-align: left;
  color: #d9e4f2;
  background: transparent;
}

.nav button.active,
.nav button:hover {
  background: #203a58;
  color: #fff;
}

.config {
  margin-top: auto;
  color: #d9e4f2;
  font-size: 13px;
  line-height: 1.7;
  padding: 14px;
  border: 1px solid #31506f;
  border-radius: var(--radius);
}

.main {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.user-box {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

#currentUser {
  color: var(--muted);
  font-size: 14px;
}

.topbar h1 {
  margin: 0 0 6px;
  font-size: 28px;
}

.topbar p {
  margin: 0;
  color: var(--muted);
}

.primary,
.secondary,
.ghost,
.icon-button {
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 10px 14px;
}

.primary {
  background: var(--primary);
  color: white;
}

.primary:hover {
  background: var(--primary-dark);
}

.primary:disabled {
  opacity: 0.6;
  cursor: wait;
}

.secondary,
.ghost,
.icon-button {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(130px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.stat {
  padding: 16px;
}

.stat span {
  color: var(--muted);
  font-size: 13px;
}

.stat strong {
  display: block;
  font-size: 26px;
  margin-top: 8px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.panel {
  padding: 18px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-title h2 {
  margin: 0;
  font-size: 18px;
}

.panel-title span {
  color: var(--muted);
  font-size: 13px;
}

.list {
  display: grid;
  gap: 10px;
}

.customer-card,
.table-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 12px;
}

.customer-card {
  display: grid;
  gap: 8px;
}

.card-head,
.row-main {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.customer-name {
  font-weight: 700;
}

.meta {
  color: var(--muted);
  font-size: 13px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 12px;
  background: #eef3f8;
  color: #36536f;
}

.tag.green {
  background: #e7f6ef;
  color: var(--green);
}

.tag.amber {
  background: #fff4df;
  color: var(--amber);
}

.tag.red {
  background: #ffe9e7;
  color: var(--red);
}

.toolbar,
.inline-form {
  display: grid;
  grid-template-columns: 1fr 180px 160px auto;
  gap: 10px;
  margin-bottom: 14px;
}

.toolbar input,
.toolbar select,
.inline-form input,
.inline-form select,
.form-grid input,
.form-grid select,
.form-grid textarea,
.follow-form input,
.follow-form select,
.follow-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 11px;
  background: #fff;
}

.import-panel,
.assign-panel,
.admin-panel {
  margin-bottom: 14px;
}

.inline-form {
  align-items: center;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.check input {
  width: auto;
}

.sales-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sales-checks label {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 10px;
  background: #fff;
}

.sales-checks input {
  width: auto;
}

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

.admin-output {
  max-height: 260px;
  overflow: auto;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fafc;
  white-space: pre-wrap;
  font-family: Consolas, monospace;
  font-size: 13px;
}

.customer-table {
  display: grid;
  gap: 10px;
}

.table-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: start;
}

.row-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.lead-form {
  max-width: 1100px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

label {
  display: grid;
  gap: 6px;
  color: #344054;
  font-size: 14px;
}

.wide {
  grid-column: 1 / -1;
}

textarea {
  min-height: 88px;
  resize: vertical;
}

.form-actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
}

.drawer {
  position: fixed;
  inset: 0;
  background: rgba(16, 32, 51, 0.45);
  display: none;
  justify-content: flex-end;
  z-index: 20;
}

.drawer.open {
  display: flex;
}

.drawer-panel {
  width: min(760px, 100%);
  height: 100%;
  background: #fff;
  padding: 22px;
  overflow: auto;
  position: relative;
}

.icon-button {
  position: sticky;
  top: 0;
  float: right;
  font-size: 22px;
  width: 40px;
  height: 40px;
  padding: 0;
}

.detail-title {
  margin: 8px 52px 4px 0;
  font-size: 26px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 16px 0;
}

.detail-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
}

.detail-item span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.report {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  line-height: 1.65;
  white-space: pre-wrap;
  max-height: 460px;
  overflow: auto;
}

.follow-form {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}

.follow-list {
  display: grid;
  gap: 10px;
}

.empty {
  color: var(--muted);
  padding: 18px;
  text-align: center;
}

@media (max-width: 960px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .stats-grid,
  .split,
  .form-grid,
  .toolbar,
  .inline-form {
    grid-template-columns: 1fr;
  }

  .topbar,
  .table-row,
  .row-main {
    flex-direction: column;
    display: flex;
  }
}