:root {
  --bg-body: #0f1923;
  --bg-sidebar: #111d2b;
  --bg-card: #162231;
  --border: #1e3349;
  --border-active: #00e676;
  --accent: #00e676;
  --accent2: #00bcd4;
  --danger: #ff5252;
  --warning: #ffab00;
  --text: #d4dde6;
  --text-secondary: #7a8fa0;
  --text-dim: #4a5c6e;
  --radius: 6px;
  --font-mono: 'Consolas', 'Courier New', monospace;
}

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

html, body {
  height: 100%;
  font-family: -apple-system, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg-body);
}

.admin-container {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ===== 侧边栏 ===== */
.sidebar {
  width: 220px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 20px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
}

.sidebar-logo { font-size: 28px; }

.sidebar-header h2 {
  font-size: 16px;
  color: var(--accent);
  letter-spacing: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: 8px 0;
  overflow-y: auto;
}

.nav-item {
  display: block;
  padding: 10px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
  border-left: 3px solid transparent;
}

.nav-item:hover {
  color: var(--text);
  background: rgba(0, 230, 118, 0.05);
}

.nav-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(0, 230, 118, 0.06);
}

.nav-group-title {
  padding: 14px 20px 6px;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
  border-top: 1px solid var(--border);
  margin-top: 6px;
}

.nav-group-title:first-child {
  border-top: none;
  margin-top: 0;
}

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ===== 按钮 ===== */
.btn {
  display: block;
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  font-weight: 600;
}

.btn-primary:hover { background: #00c853; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  display: inline-block;
  width: auto;
  padding: 6px 14px;
  font-size: 12px;
  background: rgba(0, 188, 212, 0.1);
  border: 1px solid rgba(0, 188, 212, 0.3);
  color: var(--accent2);
  border-radius: var(--radius);
}

.btn-sm:hover {
  background: rgba(0, 188, 212, 0.2);
}

.btn-logout {
  color: var(--danger);
  border-color: rgba(255, 82, 82, 0.3);
}
.btn-logout:hover {
  background: rgba(255, 82, 82, 0.15);
}

.btn-danger {
  width: auto;
  padding: 4px 10px;
  font-size: 12px;
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: var(--radius);
  cursor: pointer;
}

.btn-danger:hover {
  background: rgba(255, 82, 82, 0.1);
}

/* ===== 主内容区 ===== */
.main-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.admin-header {
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.admin-header h1 {
  font-size: 18px;
  color: var(--text);
}

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

.status-msg {
  font-size: 12px;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.3s;
}

.status-msg.show {
  opacity: 1;
}

/* ===== 内容区 ===== */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
}

/* ===== 表单区块 ===== */
.section {
  display: none;
}

.section.active {
  display: block;
}

.section-title {
  font-size: 16px;
  color: var(--accent);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ===== 表单组 ===== */
.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.form-group input[type="number"] {
  font-family: var(--font-mono);
}

.form-group input[type="color"] {
  width: 50px;
  height: 34px;
  padding: 2px;
  cursor: pointer;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.form-hint {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ===== 卡片编辑器 ===== */
.card-editor {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
}

.card-editor-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.card-editor-header h4 {
  font-size: 13px;
  color: var(--accent2);
}

/* ===== 环境区块 ===== */
.env-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.env-group .form-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}

.env-group .form-group label:first-child {
  color: var(--accent);
}

/* ===== 消息提示 ===== */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 13px;
  color: #fff;
  z-index: 999;
  animation: slideIn 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.toast.success { background: #1b5e20; border: 1px solid var(--accent); }
.toast.error   { background: #b71c1c; border: 1px solid var(--danger); }
.toast.info    { background: #0d47a1; border: 1px solid #448aff; }

@keyframes slideIn {
  from { transform: translateX(100px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* ===== 滚动条 ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0, 230, 118, 0.2); border-radius: 2px; }

/* ===== xlsx 导入弹窗 ===== */
.btn-import { background: rgba(0, 200, 255, 0.15); color: #00c8ff; border-color: rgba(0, 200, 255, 0.3); }
.btn-import:hover { background: rgba(0, 200, 255, 0.25); }

.import-overlay {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  align-items: center; justify-content: center;
}
.import-overlay.active { display: flex; }

.import-dialog {
  background: var(--panel-bg); border: 1px solid var(--border);
  border-radius: 16px; width: 720px; max-width: 95vw; max-height: 85vh;
  display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.import-dialog-header {
  padding: 18px 24px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.import-dialog-header h3 { font-size: 16px; margin: 0; color: #e0e0e0; }
.import-close {
  background: none; border: none; color: var(--text-dim); font-size: 24px;
  cursor: pointer; line-height: 1; padding: 0 4px;
}
.import-close:hover { color: #fff; }

.import-dialog-body { padding: 24px; overflow-y: auto; flex: 1; }

.import-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.import-tab {
  flex: 1; padding: 10px 16px; border: 1px solid var(--border);
  border-radius: 8px; background: transparent; color: var(--text-dim);
  cursor: pointer; font-size: 14px; transition: all 0.2s;
  text-align: center;
}
.import-tab:hover { border-color: var(--accent); color: #e0e0e0; }
.import-tab.active { background: rgba(0,230,118,0.1); border-color: var(--accent); color: var(--accent); }

.import-panel { display: none; }
.import-panel.active { display: block; }

.import-hint { font-size: 13px; color: var(--text-dim); margin-bottom: 14px; line-height: 1.6; }
.import-hint code {
  background: rgba(0,230,118,0.1); color: var(--accent);
  padding: 2px 6px; border-radius: 4px; font-size: 12px;
}

.drop-zone {
  border: 2px dashed var(--border); border-radius: 12px;
  padding: 36px 24px; text-align: center; color: var(--text-dim);
  transition: all 0.2s; cursor: pointer; display: flex;
  flex-direction: column; align-items: center;
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent); background: rgba(0,230,118,0.04); color: #e0e0e0;
}
.drop-zone-icon { font-size: 36px; margin-bottom: 8px; opacity: 0.7; }
.drop-zone p { font-size: 13px; margin: 0; }

.import-preview { margin-top: 14px; }
.preview-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 10px;
}
.preview-filename { font-size: 13px; color: var(--accent); font-weight: 500; }

.preview-table-wrap { max-height: 300px; overflow-y: auto; border: 1px solid var(--border); border-radius: 8px; }
.preview-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.preview-table th {
  position: sticky; top: 0; background: #1a1a2e; padding: 8px 10px;
  text-align: left; border-bottom: 1px solid var(--border); color: var(--accent);
  font-weight: 500; white-space: nowrap;
}
.preview-table td {
  padding: 6px 10px; border-bottom: 1px solid rgba(255,255,255,0.04);
  color: #c0c0c0;
}
.preview-table tr:hover td { background: rgba(0,230,118,0.03); }
.preview-table .col-map { color: var(--accent); font-size: 11px; }

/* ===== 账号管理 ===== */
.accts-info {
  background: rgba(0, 188, 212, 0.06);
  border: 1px solid rgba(0, 188, 212, 0.15);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 24px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}
.accts-info strong { color: var(--accent2); }

.accts-add-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.accts-add-box h4 {
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 14px;
}
.accts-form-row {
  align-items: flex-end;
}
.accts-feedback { margin-top: 8px; font-size: 13px; }
.accts-error { color: var(--danger); }
.accts-ok { color: var(--accent); }

.accts-list {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
}
.accts-list h4 {
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 14px;
}
.accts-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.accts-table th {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.accts-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  vertical-align: middle;
}
.accts-table tr:hover td { background: rgba(0,230,118,0.03); }
.accts-table .pwd-dots {
  color: var(--text-dim);
  margin-right: 10px;
}
.accts-table .hint-text {
  color: var(--text-dim);
  font-size: 12px;
}

.btn-xs {
  font-size: 11px;
  padding: 3px 10px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-xs:hover { border-color: var(--accent); color: var(--accent); }

.btn-change-pwd {
  color: var(--accent2);
  border-color: rgba(0, 188, 212, 0.3);
}
.btn-change-pwd:hover { background: rgba(0, 188, 212, 0.1); }

.btn-del-account {
  color: var(--danger);
  border-color: rgba(255, 82, 82, 0.3);
}
.btn-del-account:hover { background: rgba(255, 82, 82, 0.1); }

/* 修改密码弹窗 */
.accts-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}
.accts-dialog {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  width: 380px;
  max-width: 92vw;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.accts-dialog h4 {
  font-size: 16px;
  color: var(--accent);
  margin-bottom: 8px;
}
.accts-dialog-hint {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}
.accts-dialog-hint strong { color: var(--text); }
.accts-dialog-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
.accts-dialog-actions .btn-primary { flex: 1; }

/* ===== 响应式 ===== */