:root {
    --primary: #1890ff;
    --primary-dark: #096dd9;
    --bg: #f0f2f5;
    --sidebar-bg: #001529;
    --sidebar-text: #ffffff;
    --card-bg: #ffffff;
    --border: #d9d9d9;
    --text: #333333;
    --text-secondary: #666666;
    --danger: #ff4d4f;
    --success: #52c41a;
    --warning: #faad14;
}

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

/* Vue 挂载完成前隐藏 #app，避免脚本加载慢/失败时露出 {{ }} 原始模板 */
[v-cloak] { display: none !important; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}

/* 登录页 */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #001529 0%, #1890ff 100%);
}

.login-box {
    width: 400px;
    padding: 40px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.login-header { text-align: center; margin-bottom: 30px; }
.login-header h2 { color: #001529; font-size: 22px; margin-bottom: 8px; }
.login-header p { color: var(--text-secondary); font-size: 13px; }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-secondary); }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus { outline: none; border-color: var(--primary); }

/* 登录验证码：算式 + 输入框一行 */
.captcha-row { display: flex; gap: 10px; align-items: stretch; }
.captcha-question {
    flex: 0 0 auto;
    min-width: 110px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 12px;
    background: #f0f2f5;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-primary, #333);
    cursor: pointer;
    user-select: none;
}
.captcha-question:hover { border-color: var(--primary); }
.captcha-row input { flex: 1; }

.error-msg { color: var(--danger); font-size: 13px; margin-bottom: 12px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    line-height: 1;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:disabled { opacity: 0.7; cursor: not-allowed; }
.btn-block { width: 100%; }
.btn-text { background: transparent; color: rgba(255,255,255,0.65); padding: 0; }
.btn-text:hover { color: #fff; }
/* 白底顶栏中的文字按钮：覆盖侧栏深色配色，否则白字落在白底上看不见 */
.topbar .btn-text { color: var(--text-secondary); }
.topbar .btn-text:hover { color: var(--primary); }

/* 顶栏用户下拉菜单：悬停显示 */
.user-dropdown { position: relative; }
.user-dropdown-name {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: default;
    border-radius: 4px;
}
.user-dropdown:hover .user-dropdown-name { color: var(--primary); background: #f5f7fa; }
.user-dropdown-name::after { content: '▾'; margin-left: 6px; font-size: 12px; }
.user-dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    min-width: 120px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    padding: 6px 0;
    z-index: 100;
}
.user-dropdown:hover .user-dropdown-menu { display: block; }
.dropdown-item {
    padding: 9px 16px;
    font-size: 13px;
    color: var(--text-primary, #333);
    cursor: pointer;
    white-space: nowrap;
}
.dropdown-item:hover { background: #f0f5ff; color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-small { padding: 5px 10px; font-size: 12px; margin-right: 6px; }

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

.sidebar {
    width: 230px;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.brand { padding: 20px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.brand-title { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.brand-sub { font-size: 12px; color: rgba(255,255,255,0.5); }

.menu { flex: 1; overflow-y: auto; padding: 12px 0; }
.menu-group { margin-bottom: 8px; }
.menu-title {
    padding: 10px 20px;
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.menu-item {
    display: flex;
    align-items: center;
    padding: 11px 20px 11px 32px;
    cursor: pointer;
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    transition: all 0.2s;
}
.menu-item:hover { background: rgba(255,255,255,0.05); color: #fff; }
.menu-item.active { background: var(--primary); color: #fff; }
.menu-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    margin-right: 10px;
}
.menu-item.active .menu-dot { background: #fff; }
.menu-empty { padding: 20px; font-size: 13px; color: rgba(255,255,255,0.45); text-align: center; }

.sidebar-footer { padding: 15px 20px; border-top: 1px solid rgba(255,255,255,0.1); }
.user-info { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.user-name { font-size: 13px; color: rgba(255,255,255,0.85); }

.main-container { flex: 1; display: flex; flex-direction: column; min-width: 0; }

.topbar {
    height: 56px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.breadcrumb { font-size: 14px; color: var(--text-secondary); }
.breadcrumb strong { color: var(--text); font-weight: 500; margin-left: 6px; }

.content { flex: 1; padding: 24px; overflow-y: auto; }

/* 页面标题 */
.page-header { margin-bottom: 20px; }
.page-header h2 { font-size: 20px; font-weight: 500; color: var(--text); }

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.card-title { font-size: 16px; font-weight: 500; margin-bottom: 16px; color: var(--text); }

/* 统计卡片 */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.stat-card .label { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; }
.stat-card .value { font-size: 28px; font-weight: 600; color: var(--primary); }
.stat-card .sub { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

/* 工具栏 */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.toolbar input,
.toolbar select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
    min-width: 160px;
}
.toolbar .toolbar-note { font-size: 12px; color: var(--text-secondary); }

/* 页签按钮组（周期切换等） */
.tab-group { display: inline-flex; border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.tab-group .tab-btn {
    padding: 8px 20px;
    border: none;
    background: #fff;
    font-size: 14px;
    cursor: pointer;
    color: var(--text);
}
.tab-group .tab-btn + .tab-btn { border-left: 1px solid var(--border); }
.tab-group .tab-btn.active { background: var(--primary); color: #fff; }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.data-table th,
.data-table td { padding: 12px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { background: #fafafa; font-weight: 500; color: var(--text-secondary); }
.data-table tr:hover { background: #f5f5f5; }
.data-table tr.row-risk { background: #fff1f0; }
.data-table tr.row-risk:hover { background: #ffe0de; }
.data-table td .btn-small { margin-right: 4px; }

/* 分页 */
.pagination {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}
.pagination button {
    padding: 6px 12px;
    border: 1px solid var(--border);
    background: #fff;
    cursor: pointer;
    border-radius: 4px;
    font-size: 13px;
}
.pagination button:disabled { cursor: not-allowed; color: #bbb; background: #f5f5f5; }

/* 图表 */
.chart-container { width: 100%; height: 340px; }

/* 标签 */
.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    line-height: 1.4;
}
.tag-admin { background: rgba(24,144,255,0.15); color: var(--primary); }
.tag-success { background: #f6ffed; color: var(--success); border: 1px solid #b7eb8f; }
.tag-danger { background: #fff1f0; color: var(--danger); border: 1px solid #ffa39e; }
.tag-warning { background: #fffbe6; color: var(--warning); border: 1px solid #ffe58f; }

/* 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal {
    background: #fff;
    border-radius: 8px;
    width: 560px;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.modal-small { width: 420px; }
.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 16px; font-weight: 500; }
.modal-body { padding: 20px; }
.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}
.close-btn { font-size: 22px; cursor: pointer; color: var(--text-secondary); line-height: 1; }
.close-btn:hover { color: var(--text); }

/* 复选框组 */
.checkbox-group { display: flex; flex-wrap: wrap; gap: 14px; }
.checkbox-group label { display: flex; align-items: center; gap: 6px; font-size: 14px; cursor: pointer; }

/* 复制行（重置密码结果展示） */
.copy-row { display: flex; gap: 10px; align-items: center; }
.copy-row input { flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 4px; font-size: 14px; background: #fafafa; }

/* 状态提示 */
.loading { text-align: center; padding: 40px; color: var(--text-secondary); }
.empty { text-align: center; padding: 40px; color: #999; font-size: 14px; }

/* 响应式 */
@media (max-width: 768px) {
    .sidebar { width: 200px; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
}