/* 聚梦AI：侧栏、退出弹窗、主内容区基础布局（多页共用） */
    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html, body {
      margin: 0;
      min-height: 100%;
      background: var(--bg);
      color: var(--text);
      font-family: var(--font);
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button {
      font: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }

    .app {
      display: flex;
      min-height: 100vh;
    }

    /* —— Sidebar —— */
    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar-w);
      z-index: 40;
      display: flex;
      flex-direction: column;
      background: var(--surface);
      border-right: 1px solid var(--border);
      transition: width 0.22s ease;
    }

    .sidebar.collapsed {
      width: var(--sidebar-w-collapsed);
    }

    .sidebar.collapsed .nav-label,
    .sidebar.collapsed .brand-text,
    .sidebar.collapsed .power-card-text,
    .sidebar.collapsed .user-meta {
      opacity: 0;
      width: 0;
      overflow: hidden;
      white-space: nowrap;
    }

    .sidebar.collapsed .nav-item {
      justify-content: center;
      padding-inline: 0;
    }

    .sidebar.collapsed .user-block {
      justify-content: center;
    }

    .sidebar-head {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 14px 16px 16px;
      border-bottom: 1px solid var(--border);
      gap: 8px;
    }

    .sidebar.collapsed .sidebar-head {
      display: block;
      padding: 18px 18px 16px;
      min-height: 70px;
    }

    .sidebar.collapsed .brand {
      position: absolute;
      left: 50%;
      top: 18px;
      transform: translateX(-50%);
      z-index: 0;
      width: 36px;
      height: 36px;
      margin: 0;
      gap: 0;
      justify-content: center;
      pointer-events: none;
    }

    .sidebar.collapsed .collapse-btn {
      position: absolute;
      left: 50%;
      top: 18px;
      transform: translateX(-50%);
      z-index: 2;
    }

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

    .brand-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, #2d2640 0%, #1a1a22 100%);
      display: grid;
      place-items: center;
      flex-shrink: 0;
      border: 1px solid rgba(139, 92, 246, 0.25);
    }

    .brand-mark svg {
      width: 20px;
      height: 20px;
      color: var(--accent);
    }

    .brand-text {
      font-weight: 700;
      font-size: 18px;
      letter-spacing: 0.02em;
    }

    .collapse-btn {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      flex-shrink: 0;
      color: var(--accent);
      background: linear-gradient(135deg, #2d2640 0%, #1a1a22 100%);
      border: 1px solid rgba(139, 92, 246, 0.25);
    }

    .collapse-btn:hover {
      background: linear-gradient(135deg, #352d4a 0%, #22222c 100%);
      color: var(--text);
      border-color: rgba(139, 92, 246, 0.4);
    }

    .collapse-btn svg {
      width: 20px;
      height: 20px;
      transition: transform 0.22s ease;
    }

    .sidebar.collapsed .collapse-btn svg {
      transform: rotate(180deg);
    }

    .nav-scroll {
      flex: 1;
      overflow-y: auto;
      padding: 12px 8px 12px;
    }

    .sidebar.collapsed .nav-scroll,
    .sidebar.collapsed .sidebar-bottom-nav,
    .sidebar.collapsed .sidebar-foot {
      overflow: visible;
    }

    .sidebar-bottom-nav {
      flex-shrink: 0;
      padding: 8px 8px 4px;
      border-top: 1px solid var(--border);
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 11px 12px;
      border-radius: var(--radius-sm);
      color: var(--text-muted);
      font-size: 15px;
      font-weight: 500;
      position: relative;
    }

    .nav-item:hover {
      background: var(--surface-raised);
      color: var(--text);
    }

    .nav-item.active {
      color: var(--accent);
      background: var(--accent-dim);
    }

    .nav-item.active::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      bottom: 8px;
      width: 3px;
      border-radius: 0 3px 3px 0;
      background: var(--accent);
    }

    /* 侧栏收起时：悬停/聚焦立即显示菜单文案（无浏览器 title 延迟） */
    .sidebar.collapsed .nav-item[data-tooltip]::after,
    .sidebar.collapsed .user-block[data-tooltip]::after,
    .sidebar.collapsed .power-card[data-tooltip]::after {
      content: attr(data-tooltip);
      position: absolute;
      left: calc(100% + 10px);
      top: 50%;
      transform: translateY(-50%);
      padding: 8px 12px;
      background: #0b0b0f;
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      white-space: nowrap;
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55);
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
      z-index: 200;
    }

    .sidebar.collapsed .nav-item[data-tooltip]:hover::after,
    .sidebar.collapsed .nav-item[data-tooltip]:focus-visible::after,
    .sidebar.collapsed .user-block[data-tooltip]:hover::after,
    .sidebar.collapsed .user-block[data-tooltip]:focus-visible::after,
    /* 算力卡仅悬停显示，避免闪电按钮聚焦/关弹窗归还焦点时弹出「剩余算力：…」提示 */
    .sidebar.collapsed .power-card[data-tooltip]:hover::after {
      opacity: 1;
      visibility: visible;
    }

    .nav-icon {
      width: 22px;
      height: 22px;
      flex-shrink: 0;
      opacity: 0.9;
    }

    .power-card {
      position: relative;
      display: flex;
      align-items: center;
      gap: 12px;
      margin: 0 0 8px;
      padding: 10px 12px;
      border-radius: var(--radius-sm);
      background: transparent;
      border: none;
    }

    .power-card-icon-wrap {
      flex-shrink: 0;
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      background: var(--surface-raised);
      border: 1px solid var(--border);
      overflow: hidden;
    }

    .power-card-icon {
      width: 28px;
      height: 28px;
      display: block;
      color: var(--accent);
    }

    .power-card-text {
      flex: 1;
      min-width: 0;
    }

    .sidebar.collapsed .power-card {
      justify-content: center;
      padding: 8px 4px;
      gap: 0;
    }

    .power-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      margin-bottom: 8px;
    }

    .power-label {
      font-size: 13px;
      color: var(--text-muted);
    }

    .power-num {
      font-size: 16px;
      font-weight: 700;
      color: var(--accent);
      font-variant-numeric: tabular-nums;
    }

    .power-bar-wrap {
      height: 6px;
      border-radius: 99px;
      background: rgba(255, 255, 255, 0.06);
      overflow: hidden;
    }

    .power-bar {
      height: 100%;
      width: 72%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--accent-secondary), var(--accent));
    }

    .sidebar-foot {
      border-top: 1px solid var(--border);
      padding: 12px 10px 16px;
    }

    .user-block {
      position: relative;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 8px;
      border-radius: var(--radius-sm);
      width: 100%;
      border: none;
      background: transparent;
      color: inherit;
      font: inherit;
      text-align: left;
      cursor: pointer;
    }

    .user-block:hover {
      background: var(--surface-raised);
    }

    /* —— 退出登录确认弹窗 —— */
    .modal-backdrop {
      position: fixed;
      inset: 0;
      z-index: 1000;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 24px;
      background: rgba(0, 0, 0, 0.55);
      backdrop-filter: blur(4px);
    }

    .modal-backdrop.is-open {
      display: flex;
    }

    .modal-dialog {
      width: 100%;
      max-width: 400px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
      overflow: hidden;
    }

    .modal-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 18px 0;
    }

    .modal-title {
      margin: 0;
      font-size: 17px;
      font-weight: 700;
      color: var(--text);
    }

    .modal-close {
      width: 32px;
      height: 32px;
      display: grid;
      place-items: center;
      border-radius: 8px;
      color: var(--text-muted);
      line-height: 1;
      font-size: 21px;
    }

    .modal-close:hover {
      color: var(--text);
      background: rgba(255, 255, 255, 0.06);
    }

    .modal-body {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      padding: 18px 20px 8px;
    }

    .modal-warn-icon {
      flex-shrink: 0;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #f59e0b;
      color: #0a0a0a;
      font-size: 23px;
      font-weight: 800;
      display: grid;
      place-items: center;
      line-height: 1;
    }

    .modal-message {
      margin: 8px 0 0;
      font-size: 16px;
      font-weight: 500;
      color: var(--text);
      line-height: 1.5;
    }

    .modal-footer {
      display: flex;
      justify-content: flex-end;
      gap: 12px;
      padding: 16px 20px 18px;
    }

    .modal-btn {
      min-width: 88px;
      padding: 8px 20px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
    }

    .modal-btn-cancel {
      border: 1px solid #4b5563;
      background: transparent;
      color: var(--text);
    }

    .modal-btn-cancel:hover {
      background: rgba(255, 255, 255, 0.06);
    }

    .modal-btn-confirm {
      border: none;
      background: var(--accent);
      color: var(--on-accent);
    }

    .modal-btn-confirm:hover {
      filter: brightness(1.06);
    }

    body.modal-open {
      overflow: hidden;
    }

    .avatar {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: linear-gradient(135deg, #4b5563, #2d2640);
      flex-shrink: 0;
      border: 2px solid rgba(139, 92, 246, 0.35);
      display: grid;
      place-items: center;
      font-size: 15px;
      font-weight: 700;
      line-height: 1;
      color: rgba(255, 255, 255, 0.92);
      font-family: inherit;
    }

    .avatar::before {
      content: "聚";
    }

    .user-meta {
      min-width: 0;
    }

    .user-phone {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* —— Main —— */
    .main {
      flex: 1;
      margin-left: var(--sidebar-w);
      min-width: 0;
      transition: margin-left 0.22s ease;
    }

    .sidebar.collapsed ~ .main {
      margin-left: var(--sidebar-w-collapsed);
    }

    /* 主内容紧贴左侧主导航右侧铺满，不再 max-width 居中留白（工作台见 workspace.css .page-workspace .main-inner） */
    .main-inner {
      max-width: none;
      width: 100%;
      margin: 0;
      padding: 20px 24px 48px;
      box-sizing: border-box;
    }

    .site-footer {
      margin-top: 40px;
      padding: 28px 0 16px;
      border-top: 1px solid var(--border);
      text-align: center;
    }

    .site-footer p {
      margin: 0;
      font-size: 13px;
      color: var(--text-muted);
      letter-spacing: 0.02em;
    }

    .site-footer a {
      color: var(--text-muted);
      text-decoration: none;
    }

    .site-footer a:hover {
      color: var(--text);
    }

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main {
    margin-left: 0;
  }
  .sidebar.collapsed ~ .main {
    margin-left: 0;
  }
}