/* ============================================================
   CRM 公共样式表 — 侧边栏、布局、全局公用组件
   所有页面通过 <link rel="stylesheet" href="crm.css"> 引用
   ============================================================ */

/* ---------- CSS 变量体系（默认明亮主题） ---------- */
:root {
    --bg-primary: #f0f2f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #fafafa;
    --bg-hover: #f5f5f5;
    --bg-sidebar: #2d2a24;
    --bg-sidebar-hover: rgba(201, 151, 94, .1);
    --bg-sidebar-active: rgba(201, 151, 94, .15);
    --bg-sidebar-item-active: #c9975e;
    --bg-modal-overlay: rgba(0, 0, 0, .4);
    --bg-input: #fff;
    --bg-table-hover: #e6f7ff;
    --bg-table-header: #fafafa;
    --bg-code: #f5f5f5;
    --bg-dashed: #fafafa;

    --text-primary: #333;
    --text-secondary: #555;
    --text-tertiary: #666;
    --text-muted: #999;
    --text-light: #ccc;
    --text-sidebar: rgba(245, 230, 208, .65);
    --text-sidebar-hover: #f5e6d0;
    --text-sidebar-active: #fff;
    --text-sidebar-muted: rgba(245, 230, 208, .45);
    --text-on-primary: #fff;

    --border-color: #e8e8e8;
    --border-light: #f0f0f0;
    --border-input: #d9d9d9;
    --border-table: #f0f0f0;
    --border-dashed: #e8e8e8;
    --border-sidebar: rgba(255, 255, 255, .08);
    --border-sidebar-light: rgba(255, 255, 255, .06);
    --border-sidebar-strong: rgba(255, 255, 255, .1);

    --accent-primary: #1890ff;
    --accent-primary-hover: #40a9ff;
    --accent-primary-light: rgba(24, 144, 255, .1);
    --accent-success: #52c41a;
    --accent-success-hover: #73d13d;
    --accent-danger: #ff4d4f;
    --accent-danger-hover: #ff7875;
    --accent-warning: #fa8c16;
    --accent-info: #1890ff;

    --shadow-card: 0 1px 4px rgba(0, 0, 0, .08);
    --shadow-modal: 0 8px 30px rgba(0, 0, 0, .15);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    --color-email-card: #52c41a;
    --color-chat-card: #075e54;
}

/* ---------- 全局重置 & 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

/* ---------- 布局 ---------- */
.layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.main-area {
    margin-left: 200px;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.header {
    padding: 16px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}
.header h1 { font-size: 18px; font-weight: 600; color: var(--text-primary); }

.main {
    flex: 1;
    padding: 20px 24px;
    overflow-y: auto;
}

/* ---------- 侧边栏基础 ---------- */
.sidebar {
    width: 200px;
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 200;
}

.sidebar-logo {
    height: 56px;
    display: flex;
    align-items: center;
    padding: 0 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-sidebar-hover);
    border-bottom: 1px solid var(--border-sidebar);
    gap: 8px;
}
.sidebar-logo .logo-icon {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

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

/* ===== 侧边栏一级标题 ===== */
.sidebar-level1 {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    cursor: pointer;
    color: var(--text-sidebar);
    font-size: 13px;
    font-weight: 600;
    gap: 8px;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    border-bottom: 1px solid var(--border-sidebar-light);
    letter-spacing: 0.5px;
    transition: all .2s;
}
.sidebar-level1:hover { color: var(--text-sidebar-hover); background: var(--bg-sidebar-hover); }
.sidebar-level1 .arrow {
    font-size: 10px;
    margin-left: auto;
    transition: transform .2s;
}
.sidebar-level1 .arrow.collapsed { transform: rotate(-90deg); }
.sidebar-level1 .menu-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}
.sidebar-level1.active { color: var(--text-sidebar-active); background: var(--bg-sidebar-active); }

/* ===== 侧边栏二级标题 ===== */
.sidebar-level2 {
    display: flex;
    align-items: center;
    padding: 0 20px 0 46px;
    height: 38px;
    font-size: 13px;
    cursor: pointer;
    transition: all .2s;
    gap: 10px;
    color: var(--text-sidebar);
    text-decoration: none;
}
.sidebar-level2:hover { color: var(--text-sidebar-hover); background: var(--bg-sidebar-hover); }
.sidebar-level2.active { color: var(--text-sidebar-active); background: var(--bg-sidebar-item-active); }
.sidebar-level2 .menu-icon {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}
.sidebar-level2.disabled { opacity: .4; cursor: default; }
.sidebar-level2.disabled:hover { color: var(--text-sidebar); background: none; }

/* ===== 折叠菜单分区 ===== */
.sidebar-section-body {
    overflow: hidden;
    transition: max-height .25s ease;
}
.sidebar-section-body.collapsed { max-height: 0 !important; }

.sidebar-sub { padding: 4px 0; }

/* ===== 旧式 menu-item 兼容 ===== */
.sidebar-menu-item {
    display: flex;
    align-items: center;
    padding: 0 20px 0 46px;
    height: 38px;
    font-size: 13px;
    cursor: pointer;
    transition: all .2s;
    gap: 10px;
    color: var(--text-sidebar);
    text-decoration: none;
}
.sidebar-menu-item:hover { color: var(--text-sidebar-hover); background: var(--bg-sidebar-hover); }
.sidebar-menu-item.active { color: var(--text-sidebar-active); background: var(--bg-sidebar-item-active); }
.sidebar-menu-item .menu-icon {
    font-size: 14px;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
}
.sidebar-menu-item.disabled { opacity: .4; cursor: default; }
.sidebar-menu-item.disabled:hover { color: var(--text-sidebar); background: none; }

/* ===== 可折叠 section-header（部分页面用） ===== */
.sidebar-section-header {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    cursor: pointer;
    color: var(--text-sidebar);
    font-size: 13px;
    font-weight: 600;
    gap: 8px;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}
.sidebar-section-header:hover { color: var(--text-sidebar-hover); background: var(--bg-sidebar-hover); }
.sidebar-section-header .arrow {
    font-size: 10px;
    margin-left: auto;
    transition: transform .2s;
}
.sidebar-section-header .arrow.collapsed { transform: rotate(-90deg); }

/* ===== 侧边栏底部 ===== */
.sidebar-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-sidebar-strong);
}
.sidebar-footer .logout-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    cursor: pointer;
    color: var(--text-sidebar-muted);
    transition: color .2s;
}
.sidebar-footer .logout-btn:hover { color: var(--bg-sidebar-item-active); }

/* ---------- 通用组件 ---------- */
/* Toast 通知 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    color: #fff;
    background: var(--text-primary);
    font-size: 14px;
    opacity: 0;
    transition: opacity .3s;
    pointer-events: none;
}
.toast.show { opacity: 1; }
.toast-success { background: var(--accent-success); }
.toast-error { background: var(--accent-danger); }
.toast-info { background: var(--accent-primary); }

/* Modal 弹窗 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-modal-overlay);
    z-index: 1000;
    display: none;
    justify-content: center;
    align-items: flex-start;
    padding-top: 40px;
    overflow-y: auto;
}
.modal-overlay.show { display: flex; }
.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 620px;
    max-width: 95vw;
    box-shadow: var(--shadow-modal);
    margin-bottom: 40px;
}
.modal-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 16px; font-weight: 600; color: var(--text-primary); }
.modal-close {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 18px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}
.modal-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.modal-body { padding: 20px; max-height: 80vh; overflow-y: auto; }
.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* 按钮通用 */
.btn {
    padding: 6px 16px;
    border: 1px solid var(--border-input);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all .2s;
}
.btn:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.btn-primary { background: var(--accent-primary); color: var(--text-on-primary); border-color: var(--accent-primary); }
.btn-primary:hover { background: var(--accent-primary-hover); border-color: var(--accent-primary-hover); color: var(--text-on-primary); }
.btn-danger { color: var(--accent-danger); border-color: var(--accent-danger); }
.btn-danger:hover { background: var(--accent-danger); color: #fff; }
.btn-success { color: var(--accent-success); border-color: var(--accent-success); }
.btn-success:hover { background: var(--accent-success); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* 表单 */
.form-group { margin-bottom: 14px; }
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.form-label .req { color: var(--accent-danger); margin-left: 2px; }
.form-label .opt { color: var(--text-muted); margin-left: 2px; font-weight: 400; font-size: 12px; }
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-input);
    transition: border-color .2s;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, .1);
}
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }

/* 表格通用 */
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
thead { background: var(--bg-table-header); }
th {
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-tertiary);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}
td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-table);
    vertical-align: middle;
}
tbody tr:hover td { background: var(--bg-table-hover); }

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-light);
    text-align: center;
    padding: 24px;
    font-size: 13px;
}
.empty-state .icon { font-size: 40px; margin-bottom: 12px; }

/* 筛选栏通用 */
.filter-bar {
    background: var(--bg-secondary);
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.filter-btn {
    padding: 6px 16px;
    border: 1px solid var(--border-input);
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all .2s;
}
.filter-btn:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.filter-btn.active { background: var(--accent-primary); color: var(--text-on-primary); border-color: var(--accent-primary); }
.filter-btn .count { margin-left: 4px; font-size: 12px; opacity: .8; }

/* 搜索输入框 */
.search-input {
    padding: 6px 12px;
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    font-size: 13px;
    width: 200px;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: border-color .2s;
}
.search-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, .1);
}

/* 新建按钮 */
.btn-new {
    padding: 6px 18px;
    background: var(--accent-primary);
    color: var(--text-on-primary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    margin-left: auto;
    transition: background .2s;
}
.btn-new:hover { background: var(--accent-primary-hover); }

/* 操作按钮 */
.action-btn {
    padding: 3px 10px;
    border: 1px solid var(--border-input);
    background: var(--bg-secondary);
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    margin-right: 4px;
    transition: all .2s;
    white-space: nowrap;
}
.action-btn:hover { color: var(--accent-primary); border-color: var(--accent-primary); }
.action-btn.danger:hover { color: var(--accent-danger); border-color: var(--accent-danger); }
.action-btn.primary { background: var(--accent-primary); color: var(--text-on-primary); border-color: var(--accent-primary); }
.action-btn.primary:hover { background: var(--accent-primary-hover); }

/* 状态标签 */
.status-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}

/* header-right 时钟 */
.header-right { display: flex; align-items: center; gap: 12px; }
.header-right .clock { color: var(--text-muted); font-size: 13px; }

/* ============================================================
   响应式 — 移动端适配
   ============================================================ */
@media (max-width: 768px) {
    .sidebar {
        width: 60px !important;
        min-width: 60px;
    }
    .sidebar-logo span,
    .sidebar-footer .logout-text,
    .sidebar-level1 span,
    .sidebar-level2 span,
    .sidebar-section-header span,
    .sidebar-menu-item span:not(.menu-icon) {
        display: none;
    }
    .sidebar-logo {
        justify-content: center;
        padding: 0;
    }
    .sidebar-level1,
    .sidebar-level2,
    .sidebar-menu-item {
        justify-content: center;
        padding: 10px 0;
    }
    .sidebar-level1 .menu-icon,
    .sidebar-level2 .menu-icon,
    .sidebar-menu-item .menu-icon {
        font-size: 18px;
        width: auto;
    }
    .sidebar-level1 .arrow { display: none; }
    .sidebar-section-body.collapsed { max-height: 0 !important; }
    .sidebar-section-body:not(.collapsed) {
        position: fixed;
        left: 60px;
        top: 56px;
        bottom: 0;
        width: 180px;
        background: var(--bg-sidebar);
        z-index: 199;
        max-height: none !important;
        overflow-y: auto;
        border-left: 1px solid var(--border-sidebar);
    }
    .sidebar-section-body:not(.collapsed) .sidebar-level2 {
        justify-content: flex-start;
        padding: 0 20px 0 16px;
    }
    .sidebar-section-body:not(.collapsed) .sidebar-level2 .menu-icon {
        font-size: 14px;
        width: 18px;
    }
    .sidebar-section-body:not(.collapsed) .sidebar-level2 span {
        display: inline;
    }
    .main-area { margin-left: 60px; }
    .header { padding: 12px 16px; }
    .header h1 { font-size: 15px; }
    .main { padding: 12px; }
    .filter-bar { padding: 8px 12px; }
    table { font-size: 12px; }
    th, td { padding: 6px 8px; }
    .modal { width: 98vw; }
    .form-row { flex-direction: column; gap: 0; }
}

/* ============================================================
   主题切换 — 初始化（在 CSS 完全加载后运行）
   依赖 crm-dark.css / crm-light.css 文件
   ============================================================ */
.theme-init-script {
    display: none;
}