/* XMmail 3.0 - TDesign风格 */
:root {
    --primary: #1890ff;
    --brand-color: #0052d9;
    --brand-color-hover: #2b85e4;
    --brand-color-light: #e6f0ff;
    --success-color: #00a870;
    --success-color-light: #e6fff5;
    --warning-color: #ed7b2f;
    --warning-color-light: #fff3e6;
    --error-color: #e34d59;
    --error-color-light: #ffe6e8;
    --text-color-primary: #333;
    --text-color-secondary: #666;
    --text-color-tertiary: #999;
    --bg-color-page: #f5f6fa;
    --bg-color-container: #fff;
    --bg-color-container-hover: #f5f6fa;
    --bg-color-secondarycontainer: #f5f6fa;
    --border-color: #e8e8e8;
    --border-color-light: #f0f0f0;
    --shadow-1: 0 1px 4px rgba(0,0,0,0.05);
    --shadow-2: 0 4px 12px rgba(0,0,0,0.08);
    --radius-default: 6px;
    --radius-medium: 8px;
    --radius-large: 12px;
    --space-s: 8px; --space-m: 12px; --space-l: 16px; --space-xl: 24px;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --anim-duration-fast: 0.15s;
    --anim-duration-base: 0.2s;
    --anim-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --sidebar-width: 240px;
    --header-height: 56px;
}
[data-theme="dark"] {
    --text-color-primary: #e8e8e8; --text-color-secondary: #b0b0b0; --text-color-tertiary: #808080;
    --bg-color-page: #1a1a2e; --bg-color-container: #222240; --bg-color-container-hover: #2a2a48;
    --border-color: #3a3a50; --border-color-light: #2a2a42;
    --brand-color: #4d9cf7; --brand-color-hover: #6db3ff; --brand-color-light: #1a2a40;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-family); font-size: 14px; color: var(--text-color-primary); background: var(--bg-color-page); line-height: 1.5; overflow: hidden; }
a { color: var(--brand-color); text-decoration: none; }

/* 布局 */
.layout-wrapper { display: flex; height: 100vh; }
.sidebar { width: var(--sidebar-width); background: var(--bg-color-container); position: fixed; left: 0; top: 0; bottom: 0; z-index: 100; display: flex; flex-direction: column; border-right: 1px solid var(--border-color); transition: width var(--anim-duration-base) var(--anim-ease); }
.sidebar.collapsed { width: 64px; }
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-text,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .collapse-btn span { display: none; }
.sidebar.collapsed .logo-wrapper { justify-content: center; }
.sidebar.collapsed .nav-item { justify-content: center; padding: 10px 0; }
.sidebar.collapsed .nav-item { gap: 0; }
.sidebar-header { height: var(--header-height); display: flex; align-items: center; padding: 0 20px; border-bottom: 1px solid var(--border-color-light); }
.logo-wrapper { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--brand-color), #36cfc9); border-radius: var(--radius-default); display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0; }
.logo-text { display: flex; flex-direction: column; overflow: hidden; }
.logo-title { font-size: 18px; font-weight: 700; color: var(--brand-color); white-space: nowrap; }
.logo-subtitle { font-size: 11px; color: var(--text-color-tertiary); white-space: nowrap; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 8px; }
.nav-section { margin-bottom: 8px; }
.nav-label { padding: 8px 12px 4px; font-size: 11px; color: var(--text-color-tertiary); text-transform: uppercase; letter-spacing: 0.5px; white-space: nowrap; overflow: hidden; }
.nav-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: var(--radius-medium); color: var(--text-color-secondary); cursor: pointer; transition: all var(--anim-duration-fast) var(--anim-ease); margin: 2px 0; text-decoration: none; font-size: 14px; white-space: nowrap; }
.nav-item:hover { background: var(--bg-color-container-hover); color: var(--text-color-primary); }
.nav-item.active { background: var(--brand-color-light); color: var(--brand-color); font-weight: 500; }
.nav-icon { width: 20px; text-align: center; font-size: 16px; flex-shrink: 0; }
.nav-text { white-space: nowrap; overflow: hidden; }
.sidebar-footer { padding: 12px; border-top: 1px solid var(--border-color-light); }
.collapse-btn { width: 100%; display: flex; align-items: center; justify-content: center; padding: 8px; background: var(--bg-color-secondarycontainer); border: none; border-radius: var(--radius-default); color: var(--text-color-tertiary); cursor: pointer; gap: 8px; font-size: 13px; transition: all var(--anim-duration-fast); }
.collapse-btn:hover { background: var(--bg-color-container-hover); }
.sidebar.collapsed .collapse-btn { padding: 8px 0; }
.sidebar.collapsed .collapse-btn i { transform: rotate(180deg); }

.main-wrapper { flex: 1; display: flex; flex-direction: column; margin-left: var(--sidebar-width); transition: margin-left var(--anim-duration-base) var(--anim-ease); }
.sidebar.collapsed ~ .main-wrapper { margin-left: 64px; }

/* 顶部标签栏 - 参考razer-checker */
.tabs-bar { display: flex; align-items: center; background: var(--bg-color-container); border-bottom: 1px solid var(--border-color); flex-shrink: 0; height: 40px; padding: 0 4px; }
.tabs-list { flex: 1; display: flex; align-items: center; gap: 2px; overflow-x: auto; scrollbar-width: none; padding: 0 4px; scroll-behavior: smooth; }
.tabs-list::-webkit-scrollbar { display: none; }
.tab-item { display: flex; align-items: center; gap: 4px; padding: 6px 12px; border-radius: 6px 6px 0 0; font-size: 12px; color: var(--text-color-secondary); cursor: pointer; white-space: nowrap; transition: all 0.2s; border: 1px solid transparent; border-bottom: none; position: relative; flex-shrink: 0; background: transparent; }
.tab-item:hover { background: var(--bg-color-container-hover); color: var(--text-color-primary); }
.tab-item.active { background: var(--bg-color-page); color: var(--brand-color); font-weight: 500; border-color: var(--border-color); }
.tab-item.active::after { content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 2px; background: var(--brand-color); }
.tab-close { width: 16px; height: 16px; border: none; background: none; cursor: pointer; color: var(--text-color-tertiary); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all 0.2s; opacity: 0; flex-shrink: 0; font-size: 10px; }
.tab-item:hover .tab-close { opacity: 1; }
.tab-close:hover { background: var(--error-color); color: #fff; }
.tabs-actions { margin-left: 4px; padding-left: 4px; border-left: 1px solid var(--border-color); flex-shrink: 0; }

.top-header { height: var(--header-height); background: var(--bg-color-container); display: flex; align-items: center; justify-content: space-between; padding: 0 var(--space-xl); border-bottom: 1px solid var(--border-color); flex-shrink: 0; }
.page-title { font-size: 16px; font-weight: 600; color: var(--text-color-primary); }
.page-title i { color: var(--brand-color); margin-right: 8px; }
.header-right { display: flex; align-items: center; gap: var(--space-l); }
.header-action { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-default); background: transparent; border: none; color: var(--text-color-secondary); cursor: pointer; font-size: 16px; }
.header-action:hover { background: var(--bg-color-container-hover); color: var(--brand-color); }
.content-area { flex: 1; padding: var(--space-l); overflow-y: auto; background: var(--bg-color-page); }

/* 卡片 */
.card { background: var(--bg-color-container); border-radius: var(--radius-medium); border: 1px solid var(--border-color); }
.card-header { padding: var(--space-l) var(--space-xl); border-bottom: 1px solid var(--border-color-light); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 15px; font-weight: 600; color: var(--text-color-primary); display: flex; align-items: center; gap: 8px; }
.card-title i { color: var(--brand-color); }
.card-body { padding: var(--space-xl); }

/* 统计卡片 */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-l); }
.stat-card { background: var(--bg-color-container); border-radius: var(--radius-medium); padding: var(--space-xl); border: 1px solid var(--border-color); transition: all var(--anim-duration-base) var(--anim-ease); position: relative; overflow: hidden; }
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--brand-color); transform: scaleX(0); transition: transform var(--anim-duration-base); }
.stat-card:hover::before { transform: scaleX(1); }
.stat-card.success::before { background: var(--success-color); }
.stat-card.warning::before { background: var(--warning-color); }
.stat-card.error::before { background: var(--error-color); }
.stat-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: var(--space-m); }
.stat-title { font-size: 13px; color: var(--text-color-tertiary); }
.stat-icon { width: 40px; height: 40px; border-radius: var(--radius-default); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.stat-icon.blue { background: var(--brand-color-light); color: var(--brand-color); }
.stat-icon.green { background: var(--success-color-light); color: var(--success-color); }
.stat-icon.orange { background: var(--warning-color-light); color: var(--warning-color); }
.stat-icon.red { background: var(--error-color-light); color: var(--error-color); }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text-color-primary); }
.stat-footer { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-color-tertiary); margin-top: var(--space-s); }
.stat-trend.up { color: var(--success-color); }
.stat-trend.down { color: var(--error-color); }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 8px 16px; font-size: 14px; font-weight: 500; border-radius: var(--radius-default); border: 1px solid transparent; cursor: pointer; transition: all var(--anim-duration-fast) var(--anim-ease); white-space: nowrap; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--brand-color); color: #fff; }
.btn-primary:hover { background: var(--brand-color-hover); color: #fff; }
.btn-default { background: var(--bg-color-container); color: var(--text-color-primary); border-color: var(--border-color); }
.btn-default:hover { color: var(--brand-color); border-color: var(--brand-color); }
.btn-danger { background: var(--error-color); color: #fff; }
.btn-danger:hover { background: #d4394a; color: #fff; }
.btn-success { background: var(--success-color); color: #fff; }
.btn-success:hover { background: #009a66; color: #fff; }
.btn-warning { background: var(--warning-color); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 表格 */
.table-container { background: var(--bg-color-container); border-radius: var(--radius-medium); border: 1px solid var(--border-color); }
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
table th { background: var(--bg-color-secondarycontainer); color: var(--text-color-secondary); font-weight: 600; font-size: 13px; text-align: left; padding: 12px; border-bottom: 1px solid var(--border-color); }
table td { padding: 12px; border-bottom: 1px solid var(--border-color-light); color: var(--text-color-primary); font-size: 14px; }
table tbody tr:hover { background: var(--bg-color-container-hover); }
table tbody tr:last-child td { border-bottom: none; }
.pagination { display: flex; align-items: center; justify-content: space-between; gap: var(--space-m); padding: var(--space-l) var(--space-xl); }
.pagination-info { color: var(--text-color-tertiary); font-size: 13px; }
.pagination-btn { min-width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center; padding: 0 8px; background: var(--bg-color-container); border: 1px solid var(--border-color); border-radius: var(--radius-default); color: var(--text-color-secondary); cursor: pointer; font-size: 13px; }
.pagination-btn:hover { background: var(--bg-color-container-hover); border-color: var(--brand-color); color: var(--brand-color); }
.pagination-btn.active { background: var(--brand-color); color: #fff; border-color: var(--brand-color); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* 工具栏 */
.toolbar { background: var(--bg-color-container); padding: var(--space-l); border-radius: var(--radius-medium); margin-bottom: var(--space-l); display: flex; gap: var(--space-s); flex-wrap: wrap; align-items: center; border: 1px solid var(--border-color); }
.toolbar .search-box { flex: 1; min-width: 200px; }
.toolbar-row { display: flex; align-items: center; gap: var(--space-m); flex-wrap: wrap; }
.toolbar-actions { display: flex; align-items: center; gap: var(--space-s); flex-wrap: wrap; }

/* 表单 */
.form-group { margin-bottom: var(--space-xl); }
.form-label { display: block; margin-bottom: 6px; font-weight: 500; font-size: 14px; color: var(--text-color-primary); }
.form-input, .form-select, .form-textarea { width: 100%; padding: 8px 12px; font-size: 14px; border: 1px solid var(--border-color); border-radius: var(--radius-default); background: var(--bg-color-container); color: var(--text-color-primary); transition: all var(--anim-duration-fast) var(--anim-ease); }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--brand-color); box-shadow: 0 0 0 2px rgba(0,82,217,0.15); }
.form-input::placeholder { color: #ccc; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 10px center; padding-right: 30px; }
.form-textarea { min-height: 100px; resize: vertical; }
.form-help { margin-top: 4px; font-size: 12px; color: var(--text-color-tertiary); }
.search-box { position: relative; }
.search-box input { padding-left: 36px; }
.search-box i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-color-tertiary); pointer-events: none; }

/* 徽章 */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 8px; font-size: 12px; border-radius: 4px; font-weight: 500; }
.badge-success { background: var(--success-color-light); color: var(--success-color); }
.badge-warning { background: var(--warning-color-light); color: var(--warning-color); }
.badge-error { background: var(--error-color-light); color: var(--error-color); }
.badge-info { background: var(--brand-color-light); color: var(--brand-color); }
.badge-default { background: var(--bg-color-secondarycontainer); color: var(--text-color-tertiary); }

/* 消息提示 */
.message-toast { position: fixed; top: 20px; right: 20px; z-index: 10000; display: flex; flex-direction: column; gap: 8px; }
.toast { display: flex; align-items: flex-start; gap: 10px; padding: 12px 16px; background: var(--bg-color-container); border-radius: var(--radius-medium); box-shadow: 0 6px 16px rgba(0,0,0,0.12); min-width: 300px; animation: toast-in 0.3s var(--anim-ease); border: 1px solid var(--border-color); }
.toast.success { border-left: 3px solid var(--success-color); }
.toast.warning { border-left: 3px solid var(--warning-color); }
.toast.error { border-left: 3px solid var(--error-color); }
.toast.info { border-left: 3px solid var(--brand-color); }
.toast-icon { font-size: 16px; flex-shrink: 0; }
.toast.success .toast-icon { color: var(--success-color); }
.toast.warning .toast-icon { color: var(--warning-color); }
.toast.error .toast-icon { color: var(--error-color); }
.toast.info .toast-icon { color: var(--brand-color); }
.toast-content { flex: 1; }
.toast-message { color: var(--text-color-secondary); font-size: 13px; }
.toast-close { background: none; border: none; color: var(--text-color-tertiary); cursor: pointer; font-size: 14px; }
.toast-close:hover { color: var(--text-color-primary); }
@keyframes toast-in { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* 模态框 */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1000; display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: all var(--anim-duration-base) var(--anim-ease); }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal { background: var(--bg-color-container); border-radius: var(--radius-large); box-shadow: 0 6px 16px rgba(0,0,0,0.12); width: 90%; max-width: 520px; max-height: 85vh; display: flex; flex-direction: column; transform: scale(0.95) translateY(10px); transition: transform var(--anim-duration-base) var(--anim-ease); border: 1px solid var(--border-color); }
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header { padding: var(--space-xl); border-bottom: 1px solid var(--border-color-light); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 16px; font-weight: 600; color: var(--text-color-primary); display: flex; align-items: center; gap: 8px; }
.modal-title i { color: var(--brand-color); }
.modal-close { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; background: transparent; border: none; color: var(--text-color-tertiary); cursor: pointer; border-radius: 4px; font-size: 16px; }
.modal-close:hover { background: var(--bg-color-container-hover); color: var(--text-color-primary); }
.modal-body { padding: var(--space-xl); overflow-y: auto; flex: 1; }
.modal-footer { padding: var(--space-l) var(--space-xl); border-top: 1px solid var(--border-color-light); display: flex; justify-content: flex-end; gap: var(--space-s); }

/* 状态 */
.status-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 4px; font-size: 12px; font-weight: 500; }
.status-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status-active { background: var(--success-color-light); color: var(--success-color); }
.status-inactive { background: var(--error-color-light); color: var(--error-color); }

/* 操作按钮 */
.actions { display: flex; gap: 4px; align-items: center; }
.actions button { width: 28px; height: 28px; border: none; border-radius: 4px; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 12px; transition: all var(--anim-duration-fast); }
.actions button.config { background: var(--success-color-light); color: var(--success-color); }
.actions button.config:hover { background: var(--success-color); color: #fff; }
.actions button.toggle { background: var(--brand-color-light); color: var(--brand-color); }
.actions button.toggle:hover { background: var(--brand-color); color: #fff; }
.actions button.delete { background: var(--error-color-light); color: var(--error-color); }
.actions button.delete:hover { background: var(--error-color); color: #fff; }

/* 工具类 */
.text-brand { color: var(--brand-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-error { color: var(--error-color) !important; }
.text-secondary { color: var(--text-color-secondary) !important; }
.text-tertiary { color: var(--text-color-tertiary) !important; }
.font-bold { font-weight: 600 !important; }
.text-center { text-align: center !important; }
.d-flex { display: flex !important; }
.align-center { align-items: center !important; }
.justify-between { justify-content: space-between !important; }
.gap-s { gap: var(--space-s) !important; }
.gap-m { gap: var(--space-m) !important; }
.gap-l { gap: var(--space-l) !important; }
.mb-s { margin-bottom: var(--space-s) !important; }
.mb-m { margin-bottom: var(--space-m) !important; }
.mb-l { margin-bottom: var(--space-l) !important; }
.hidden { display: none !important; }
.overflow-hidden { overflow: hidden !important; }

/* 加载 */
.loading-spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border-color); border-radius: 50%; border-top-color: var(--brand-color); animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.empty-state { padding: 48px 0; text-align: center; color: var(--text-color-tertiary); }
.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }

/* 移动端 */
.mobile-menu-btn { display: none; position: fixed; top: 12px; left: 12px; z-index: 150; width: 36px; height: 36px; align-items: center; justify-content: center; background: var(--bg-color-container); border: 1px solid var(--border-color); color: var(--text-color-primary); cursor: pointer; border-radius: var(--radius-default); font-size: 16px; }
.mobile-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 150; }
.mobile-overlay.active { display: block; }
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); z-index: 200; }
    .sidebar.mobile-open { transform: translateX(0); }
    .main-wrapper { margin-left: 0 !important; }
    .mobile-menu-btn { display: flex !important; }
    .stats-grid { grid-template-columns: 1fr; }
    .toolbar { flex-direction: column; }
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::selection { background: rgba(0,82,217,0.15); }