:root {
  color-scheme: light;
  font-family: "Microsoft YaHei UI", "Segoe UI", Arial, sans-serif;
  --blue: #3f86f6;
  --bg: #f3f6fb;
  --border: #d8e0ec;
  --text: #202733;
  --muted: #647084;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

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

.hidden {
  display: none !important;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-panel {
  width: 360px;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 18px 60px rgba(22, 42, 74, 0.12);
}

.login-panel h1 {
  margin: 0 0 8px;
  font-size: 24px;
}

.login-panel p {
  margin: 0 0 22px;
  color: var(--muted);
}

label {
  display: grid;
  gap: 7px;
  color: #344054;
  font-size: 14px;
}

input,
select,
textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}

input,
select {
  height: 36px;
  padding: 0 10px;
}

textarea {
  width: 100%;
  min-height: 76px;
  margin: 14px 0;
  padding: 10px;
  resize: vertical;
}

.login-panel label + label {
  margin-top: 14px;
}

.primary-btn,
.secondary-btn,
.logout-btn,
.nav-btn {
  border: 0;
  border-radius: 6px;
  cursor: pointer;
}

.primary-btn {
  height: 38px;
  padding: 0 18px;
  background: var(--blue);
  color: #fff;
}

.secondary-btn {
  height: 36px;
  padding: 0 16px;
  background: #e9f1ff;
  color: #2367cc;
}

#loginBtn {
  width: 100%;
  margin-top: 20px;
}

.message {
  min-height: 20px;
  margin-top: 12px;
  color: #d92d20;
  font-size: 13px;
}

.dashboard {
  display: grid;
  grid-template-columns: 210px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 20px 14px;
  background: #172033;
  color: #fff;
}

.brand {
  margin: 4px 8px 24px;
  font-size: 20px;
  font-weight: 700;
}

.nav-btn,
.logout-btn {
  width: 100%;
  height: 40px;
  margin-bottom: 10px;
  text-align: left;
  padding: 0 14px;
}

.nav-btn {
  background: transparent;
  color: #d7e3f7;
}

.nav-btn.active {
  background: var(--blue);
  color: #fff;
}

.logout-btn {
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.content {
  padding: 24px;
}

.topbar,
.toolbar,
.table-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  margin-bottom: 16px;
}

.topbar h2 {
  margin: 0 0 4px;
}

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

.toolbar {
  display: flex;
  align-items: end;
  gap: 12px;
  padding: 16px;
}

.toolbar label {
  min-width: 130px;
}

.table-wrap {
  overflow: auto;
}

.settings-panel {
  padding: 18px 20px 20px;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
  margin-bottom: 18px;
}

.settings-header h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

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

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
}

.settings-grid .span-2 {
  grid-column: 1 / -1;
}

.upload-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.file-input {
  height: 36px;
  padding: 6px 10px;
  min-width: 260px;
}

.inline-message {
  min-height: 20px;
  color: #2367cc;
  font-size: 13px;
}

.carousel-preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}

.carousel-preview-item {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #f8fafc;
}

.carousel-preview-item img {
  width: 100%;
  height: 82px;
  object-fit: cover;
  border-radius: 6px;
  background: #e8edf5;
}

.carousel-preview-item button {
  width: 100%;
}

.empty-preview {
  padding: 14px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--muted);
}

.settings-grid textarea {
  min-height: 92px;
}

.settings-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.settings-block {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #f8fafc;
}

.settings-block h4 {
  margin: 0 0 12px;
  font-size: 15px;
}

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

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.url-grid {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.url-grid label {
  font-size: 13px;
}

.settings-message {
  margin-top: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid #edf1f6;
  text-align: left;
  white-space: nowrap;
}

th {
  background: #f8fafc;
  color: #344054;
  font-weight: 700;
}