/* ===== 伊娃东方舞 · 网课系统 - 管理后台样式 ===== */
:root {
  --gold: #ef5b45;
  --gold-light: #ff8068;
  --gold-dark: #d94730;
  --red: #ef5b45;
  --red-dark: #c63b28;
  --bg: #f6f7fb;
  --bg-card: #ffffff;
  --bg-hover: #fff2ef;
  --bg-input: #fbfcff;
  --border: #e6ebf5;
  --text: #172033;
  --text-muted: #738096;
  --success: #4caf50;
  --warning: #ff9800;
  --danger: #f44336;
  --radius: 8px;
  --shadow: 0 8px 26px rgba(39,45,64,0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-light); }

/* ===== 登录页 ===== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f0f0f 0%, #1a0a0a 50%, #0f0f0f 100%);
}
.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 400px;
  box-shadow: var(--shadow);
}
.login-box h1 {
  text-align: center;
  color: var(--gold);
  font-size: 24px;
  margin-bottom: 8px;
}
.login-box .subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 30px;
  font-size: 14px;
}
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--text-muted);
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--gold);
}

/* ===== 布局 ===== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: 220px;
  background: #081a3a;
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.sidebar-header h2 {
  color: var(--gold);
  font-size: 16px;
  font-weight: 600;
}
.sidebar-header small {
  color: var(--text-muted);
  font-size: 11px;
}
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}
.nav-item {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}
.nav-item:hover {
  background: rgba(200, 169, 110, 0.12);
  color: #fff;
}
.nav-item.active {
  background: rgba(47, 108, 255, 0.18);
  color: var(--gold);
  border-left-color: var(--gold);
}
.nav-item .icon {
  margin-right: 10px;
  width: 20px;
  text-align: center;
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: 220px;
  min-height: 100vh;
}
.topbar {
  background: rgba(255,255,255,0.94);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar h1 {
  font-size: 18px;
  color: var(--text);
}
.topbar p {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 13px;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.content-area {
  padding: 24px;
}

/* ===== 卡片 ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

/* ===== 统计卡片 ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: transform 0.2s;
}
.stat-card:hover {
  transform: translateY(-2px);
}
.stat-card .stat-icon {
  font-size: 28px;
  margin-bottom: 8px;
}
.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 4px;
}
.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gold);
  color: #fff;
  font-weight: 600;
}
.btn-primary:hover {
  background: var(--gold-light);
}
.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #d32f2f;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}
.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}
.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== 表格 ===== */
.table-wrap {
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
th {
  background: #f8f3ea;
  color: var(--text-muted);
  font-weight: 500;
  position: sticky;
  top: 0;
}
tr:hover td {
  background: rgba(200, 169, 110, 0.05);
}

/* ===== 标签 ===== */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}
.badge-success { background: rgba(76, 175, 80, 0.2); color: var(--success); }
.badge-warning { background: rgba(255, 152, 0, 0.2); color: var(--warning); }
.badge-danger { background: rgba(244, 67, 54, 0.2); color: var(--danger); }
.badge-info { background: rgba(33, 150, 243, 0.2); color: #2196f3; }
.badge-gold { background: rgba(200, 169, 110, 0.2); color: var(--gold); }

/* ===== 工具栏 ===== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.search-input {
  padding: 8px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 13px;
  min-width: 200px;
}
.search-input:focus {
  border-color: var(--gold);
  outline: none;
}

/* ===== 树形文件夹 ===== */
.folder-tree {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
}
.folder-item {
  padding: 6px 12px;
  cursor: pointer;
  border-radius: 4px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.folder-item:hover {
  background: var(--bg-hover);
}
.folder-item.active {
  background: rgba(200, 169, 110, 0.15);
  color: var(--gold);
}
.folder-item .indent {
  display: inline-block;
  width: 20px;
}
.folder-children {
  margin-left: 20px;
}

/* ===== 模态框 ===== */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show {
  display: flex;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 500px;
  max-width: 90vw;
  max-height: 80vh;
  overflow-y: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.modal-header h3 {
  font-size: 16px;
  color: var(--gold);
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ===== Tabs ===== */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.tab {
  padding: 10px 16px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ===== 分页 ===== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 13px;
}
.pagination button {
  padding: 6px 12px;
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  cursor: pointer;
}
.pagination button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.pagination .page-info {
  color: var(--text-muted);
}

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}
.empty-state .icon {
  font-size: 48px;
  margin-bottom: 12px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== 成型版运营界面 ===== */
.ops-hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 20px;
  padding: 28px;
  border-radius: 12px;
  background: linear-gradient(135deg, #12336d 0%, #081a3a 100%);
  color: #fff;
}
.ops-hero .eyebrow {
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
}
.ops-hero h2 {
  max-width: 720px;
  font-size: 28px;
  line-height: 1.25;
}
.ops-hero p {
  margin-top: 10px;
  color: rgba(255,255,255,.76);
}
.hero-steps {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}
.hero-steps span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  color: var(--gold-light);
  font-size: 12px;
}
.workflow-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr 1fr;
  gap: 16px;
}
.flow-list {
  display: grid;
  gap: 10px;
}
.flow-list a {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: #fbf8f1;
}
.flow-list b {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--gold);
  color: #fff;
}
.flow-list em {
  font-style: normal;
  color: var(--text-muted);
  font-size: 12px;
}
.material-layout,
.series-shell,
.auth-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
}
.series-shell {
  grid-template-columns: minmax(0, 1fr) 380px;
}
.auth-layout {
  grid-template-columns: minmax(0, 1fr) 320px;
}
.folder-panel,
.detail-panel,
.auth-help {
  align-self: start;
  position: sticky;
  top: 84px;
}
.folder-tree {
  max-height: calc(100vh - 190px);
  border: 0;
  padding: 0;
}
.folder-item {
  width: 100%;
  justify-content: space-between;
  border: 0;
  background: transparent;
  color: var(--text);
}
.folder-item em {
  color: var(--text-muted);
  font-style: normal;
  font-size: 11px;
}
.folder-item.active {
  background: rgba(139,26,26,.08);
  color: var(--gold-dark);
}
.material-main {
  min-width: 0;
}
.compact {
  min-width: 130px;
}
.wide {
  min-width: 280px;
}
.capacity-strip {
  position: relative;
  display: flex;
  justify-content: space-between;
  margin: 0 0 14px;
  padding: 12px 14px;
  overflow: hidden;
  border-radius: 8px;
  background: #f5f7fb;
  color: var(--text-muted);
}
.capacity-strip b {
  color: var(--text);
  z-index: 1;
}
.capacity-strip i {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  background: var(--gold);
}
.upload-drop {
  margin-bottom: 16px;
  padding: 24px;
  border: 1px dashed var(--gold-dark);
  border-radius: 8px;
  text-align: center;
  background: #fbfcff;
  color: var(--text);
}
.series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.series-tile {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  transition: transform .18s, border-color .18s;
}
.series-tile:hover,
.series-tile.active {
  transform: translateY(-2px);
  border-color: var(--gold-dark);
}
.tile-cover {
  display: grid;
  place-items: center;
  height: 110px;
  background: linear-gradient(135deg, #102b5c, #081a3a);
  color: #bcd0ff;
  font-weight: 800;
}
.tile-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tile-body {
  padding: 14px;
}
.tile-body h3 {
  font-size: 16px;
  line-height: 1.35;
}
.tile-body p {
  min-height: 38px;
  margin: 8px 0;
  color: var(--text-muted);
  font-size: 13px;
}
.tile-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-size: 12px;
}
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.detail-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.detail-kpis span {
  padding: 12px;
  border-radius: 8px;
  background: #f5f7fb;
  text-align: center;
  font-weight: 700;
}
.course-list {
  display: grid;
  gap: 10px;
}
.course-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fbf8f1;
}
.course-row small {
  color: var(--text-muted);
}
.course-row .btn {
  grid-column: 2;
  grid-row: 2;
}
.series-workbench {
  display: grid;
  gap: 14px;
}
.workbench-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.workbench-head h3 {
  font-size: 18px;
  line-height: 1.35;
}
.workbench-head p {
  margin-top: 4px;
  color: var(--text-muted);
  font-size: 13px;
}
.workbench-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.workbench-tabs button {
  padding: 10px 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}
.workbench-tabs button.active {
  border-bottom-color: var(--gold-dark);
  color: var(--text);
  font-weight: 700;
}
.workbench-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.course-manager {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 12px;
}
.course-manager aside {
  display: grid;
  align-content: start;
  gap: 8px;
}
.group-add,
.group-item {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fbf8f1;
  color: var(--text);
  text-align: left;
  font-size: 13px;
}
.group-item {
  display: flex;
  justify-content: space-between;
}
.group-item.active {
  border-color: var(--gold-dark);
  color: var(--red);
  font-weight: 700;
}
.course-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.course-card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
}
.course-thumb {
  display: grid;
  place-items: center;
  height: 82px;
  background: linear-gradient(135deg, #2f6cff, #102b5c);
  color: #fff;
  font-weight: 800;
}
.course-card-body {
  padding: 12px;
}
.course-card-body h4 {
  min-height: 42px;
  font-size: 14px;
  line-height: 1.45;
}
.course-card-body p {
  margin: 6px 0 8px;
  color: var(--text-muted);
  font-size: 12px;
}
.course-card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.material-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  max-height: 360px;
  overflow: auto;
}
.material-picker label {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fbf8f1;
}
.material-picker em {
  color: var(--text-muted);
  font-style: normal;
  font-size: 12px;
}
.table-note {
  padding: 12px;
  color: var(--text-muted);
  font-size: 13px;
}
.auth-help p {
  color: var(--text-muted);
  font-size: 14px;
}
.rule-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}
.rule-list span {
  padding: 12px;
  border-radius: 8px;
  background: #eef3ff;
  color: var(--gold-dark);
  font-weight: 700;
}
small {
  color: var(--text-muted);
}

/* ===== UI 方案统一视觉覆盖：参考 1-27 后台截图 ===== */
.sidebar {
  background: linear-gradient(180deg, #071735 0%, #0b2046 58%, #08142d 100%);
  border-right: 0;
}
.sidebar-header {
  border-bottom-color: rgba(255,255,255,.08);
}
.sidebar-header h2 {
  color: #fff;
  font-weight: 800;
}
.sidebar-header small {
  color: rgba(255,255,255,.54);
}
.nav-item {
  margin: 2px 10px;
  padding: 10px 12px;
  border-left: 0;
  border-radius: 6px;
  color: rgba(255,255,255,.66);
}
.nav-item:hover {
  background: rgba(255,255,255,.08);
}
.nav-item.active {
  background: var(--gold);
  color: #fff;
}
.topbar {
  min-height: 72px;
  box-shadow: 0 1px 0 rgba(20,28,42,.03);
}
.topbar h1 {
  font-size: 20px;
  font-weight: 800;
}
.content-area {
  max-width: 1480px;
}
.card,
.series-tile,
.course-card,
.modal,
.flow-list a,
.material-picker label,
.group-add,
.group-item,
.course-row {
  border-color: #e9edf5;
  box-shadow: 0 6px 18px rgba(31,39,59,.04);
}
th {
  background: #f7f8fb;
  color: #6f7787;
  font-weight: 700;
}
tr:hover td {
  background: #fff8f6;
}
.btn {
  border-radius: 6px;
  font-weight: 700;
}
.btn-primary {
  background: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-light);
}
.btn-outline:hover {
  border-color: var(--gold);
  background: #fff6f3;
  color: var(--gold-dark);
}
.badge {
  border-radius: 999px;
  padding: 3px 9px;
}
.badge-gold,
.badge-info {
  background: #fff2ef;
  color: var(--gold-dark);
}
.ops-hero {
  background:
    radial-gradient(circle at 82% 26%, rgba(239,91,69,.36), transparent 24%),
    linear-gradient(135deg, #111b30 0%, #0b2146 58%, #07142b 100%);
}
.ops-hero .eyebrow,
.hero-steps span {
  color: #ffb4a6;
}
.hero-steps span {
  background: rgba(255,255,255,.1);
}
.stat-card {
  display: grid;
  align-content: center;
  min-height: 116px;
  text-align: left;
}
.stat-card .stat-value {
  color: var(--gold);
}
.workflow-grid {
  grid-template-columns: 1.1fr 1fr 1fr;
}
.flow-list a {
  background: #fff;
}
.flow-list b {
  background: var(--gold);
}
.module-map {
  margin-top: 16px;
}
.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.module-grid span {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fbfcff;
  color: var(--text);
  font-weight: 700;
}
.capacity-strip,
.detail-kpis span {
  background: #f7f8fb;
}
.capacity-strip i {
  background: var(--gold);
}
.tile-cover,
.course-thumb {
  background: linear-gradient(135deg, #343a48 0%, #111b30 100%);
  color: #ffd8cf;
}
.series-tile.active {
  border-color: var(--gold);
  box-shadow: 0 10px 26px rgba(239,91,69,.14);
}
.workbench-tabs button.active {
  border-bottom-color: var(--gold);
  color: var(--gold-dark);
}
.group-item.active {
  border-color: var(--gold);
  background: #fff6f3;
}
.rule-list span {
  background: #fff2ef;
}

/* ===== 小程序配置 ===== */
.mini-config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.mini-stat {
  min-height: 88px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  display: grid;
  align-content: center;
  gap: 4px;
  box-shadow: 0 6px 18px rgba(31,39,59,.04);
}
.mini-stat b {
  color: var(--gold);
  font-size: 24px;
  line-height: 1;
}
.mini-stat span {
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
}
.mini-page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(360px, .8fr);
  gap: 16px;
  align-items: start;
}
.mini-section-note,
.mini-help {
  margin-bottom: 14px;
  color: var(--text-muted);
  font-size: 13px;
}
.mini-poster-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}
.mini-poster {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 8px;
  border: 2px solid transparent;
  background: #222a37;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(16,24,40,.12);
}
.mini-poster.active {
  border-color: var(--gold);
}
.mini-poster img,
.poster-empty {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
}
.poster-empty {
  background: linear-gradient(135deg, #2d3541, #b56a48);
}
.poster-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 8px;
  border-radius: 999px;
  color: #fff;
  background: rgba(0,0,0,.45);
  font-size: 11px;
  font-weight: 800;
}
.poster-copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 42px 10px 10px;
  color: #fff;
  background: linear-gradient(180deg, rgba(0,0,0,0), rgba(17,20,28,.88));
}
.poster-copy h3 {
  font-size: 13px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.poster-copy p {
  margin-top: 4px;
  color: #ffd1a8;
  font-weight: 900;
}
.mini-editor {
  position: sticky;
  top: 88px;
}
.mini-cover-preview {
  aspect-ratio: 1 / 1;
  margin-bottom: 16px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: #f7f8fb;
  font-weight: 800;
}
.mini-cover-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.mini-table-wrap {
  max-height: 520px;
  overflow: auto;
}
.data-source-list {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}
.data-source-list span {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fbfcff;
  color: var(--text);
  font-weight: 700;
  font-size: 13px;
}

@media (max-width: 1100px) {
  .workflow-grid,
  .material-layout,
  .series-shell,
  .auth-layout,
  .mini-page-layout {
    grid-template-columns: 1fr;
  }
  .folder-panel,
  .detail-panel,
  .auth-help,
  .mini-editor {
    position: static;
  }
}