/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Medical CRM - Premium UI Design                           ║ */
/* ║  Modern, Clean, Professional Interface                    ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

/* 全局字体引入： Noto Sans SC（中文） */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;800&display=swap');

/* 防止未登录闪屏：默认隐藏内部页面，认证通过后由 common.js 添加 .auth-ready 解锁 */
body:not(.login-page):not(.auth-ready) { opacity: 0 !important; }

:root {
    /* ━━━ Color Palette ━━━ */
    --primary: #0071e3;               /* Primary Blue */
    --primary-light: #E8F2FF;         /* Light Blue Background */
    --primary-dark: #0055b8;
    
    --accent: #FF6B6B;                /* Accent Red */
    --success: #10B981;               /* Success Green */
    --success-light: #ECFDF5;
    --warning: #F59E0B;               /* Warning Orange */
    --warning-light: #FFFBEB;
    --danger: #EF4444;                /* Danger Red */
    --danger-light: #FEE2E2;
    
    /* ━━━ Backgrounds ━━━ */
    --bg-body: #FAFBFC;               /* Main Background */
    --bg-card: #FFFFFF;               /* Card Background */
    --bg-sidebar: #1F2937;            /* Sidebar Dark */
    --bg-hover: #F3F4F6;              /* Hover State */
    --bg-light: #F9FAFB;
    
    /* ━━━ Text Colors ━━━ */
    --text-primary: #111827;          /* Main Text */
    --text-secondary: #6B7280;        /* Secondary Text */
    --text-tertiary: #9CA3AF;         /* Tertiary Text */
    --text-white: #FFFFFF;
    
    /* ━━━ Borders & UI ━━━ */
    --border-color: #E5E7EB;
    --border-light: #F3F4F6;
    --border-dark: #D1D5DB;
    
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    
    /* ━━━ Shadows ━━━ */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* ━━━ Transitions ━━━ */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ━━━ 响应式布局变量 ━━━ */
    --sidebar-width: 230px;
    --sidebar-collapsed-width: 68px;
    --header-height: 80px;
    --content-padding-x: 40px;
    --content-padding-y: 30px;
    --content-max-width: none;

    /* ━━━ 间距 Token（基于 rem） ━━━ */
    --space-xs: 0.25rem;   /* 4px @16 */
    --space-sm: 0.5rem;    /* 8px @16 */
    --space-md: 1rem;      /* 16px @16 */
    --space-lg: 1.5rem;    /* 24px @16 */
    --space-xl: 2rem;      /* 32px @16 */
    --space-2xl: 2.5rem;   /* 40px @16 */

    /* ━━━ 字号 Token（基于 rem） ━━━ */
    --font-xs: 0.75rem;    /* 12px @16 */
    --font-sm: 0.8125rem;  /* 13px @16 */
    --font-base: 0.875rem; /* 14px @16 */
    --font-md: 1rem;       /* 16px @16 */
    --font-lg: 1.125rem;   /* 18px @16 */
    --font-xl: 1.5rem;     /* 24px @16 */
    --font-2xl: 1.75rem;   /* 28px @16 */
}

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

html { 
    scroll-behavior: smooth;
    /* 流式字体基准：13px(@768) → 17px(@2560+)，替代原来 5 级阶梯覆盖 */
    font-size: clamp(13px, 0.6vw + 0.6rem, 17px);
}

body { 
    font-family: "Segoe UI", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
    background: var(--bg-body); 
    color: var(--text-primary); 
    display: flex; 
    height: 100vh; 
    overflow: hidden; 
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Sidebar Navigation                                        ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.sidebar { 
    width: var(--sidebar-width); 
    background: linear-gradient(135deg, var(--bg-sidebar) 0%, #111827 100%);
    color: var(--text-white); 
    display: flex; 
    flex-direction: column; 
    flex-shrink: 0;
    border-right: 1px solid rgba(0, 0, 0, 0.2);
    box-shadow: 4px 0 12px rgba(0, 0, 0, 0.15);
    z-index: 100;
    transition: width var(--transition-normal);
    overflow: hidden;
}

.logo { 
    height: var(--header-height); 
    display: flex; 
    align-items: center; 
    padding: 0 24px; 
    font-size: 18px; 
    font-weight: 700; 
    letter-spacing: -0.3px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    gap: 12px;
}

.logo i { 
    font-size: 28px; 
    background: linear-gradient(135deg, var(--primary) 0%, #0055b8 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
}

.nav { 
    flex: 1; 
    padding: 20px 12px; 
    overflow-y: auto;
    scroll-behavior: smooth;
}

.nav::-webkit-scrollbar {
    width: 6px;
}

.nav::-webkit-scrollbar-track {
    background: transparent;
}

.nav::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.nav::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

.nav a { 
    display: flex; 
    align-items: center; 
    padding: 12px 16px; 
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none; 
    border-radius: var(--radius-lg);
    margin-bottom: 6px; 
    transition: all var(--transition-fast);
    font-size: 14px;
    font-weight: 500;
    gap: 12px;
}

.nav a:hover { 
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-white);
    transform: translateX(4px);
}

.nav a:focus,
.nav a:focus-visible,
.nav a:active {
    outline: none;
    box-shadow: none;
}

.nav a.active { 
    background: linear-gradient(135deg, var(--primary) 0%, #0055b8 100%);
    color: var(--text-white);
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.4);
    font-weight: 600;
}

.nav a i { 
    font-size: 18px; 
    width: 20px; 
    text-align: center;
    flex-shrink: 0;
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Main Content Area                                         ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.main { 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
    overflow: auto;
    position: relative;
}

.header { 
    height: var(--header-height); 
    background: var(--bg-card);
    display: flex; 
    align-items: center; 
    justify-content: space-between; 
    padding: 0 var(--content-padding-x); 
    flex-shrink: 0;
    z-index: 50;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-xs);
}

.header h3 { 
    font-size: 24px; 
    font-weight: 700; 
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.user-info span {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #0055b8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
}

.content { 
    flex: 1; 
    padding: var(--content-padding-y) var(--content-padding-x); 
    overflow-y: auto;
    scroll-behavior: smooth;
    max-width: var(--content-max-width);
}

.content::-webkit-scrollbar {
    width: 8px;
}

.content::-webkit-scrollbar-track {
    background: transparent;
}

.content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

.content::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Cards & Containers                                        ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.card { 
    background: var(--bg-card); 
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    margin-bottom: 24px;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-color);
}

.card-title { 
    font-size: 18px; 
    font-weight: 700; 
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex; 
    align-items: center; 
    justify-content: space-between;
    gap: 16px;
}

.card-title i {
    color: var(--primary);
    font-size: 20px;
}

/* ━━━ Stats Cards ━━━ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    margin: 10px 0;
}

.stat-unit {
    font-size: 12px;
    color: var(--text-secondary);
    margin-left: 4px;
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Forms & Inputs                                            ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.form-group { 
    margin-bottom: 20px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.form-label.required::after {
    content: ' *';
    color: var(--danger);
}

.form-input, 
.form-select,
textarea { 
    width: 100%;
    padding: 11px 14px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary);
}

.form-input:focus,
.form-select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
    background: var(--bg-light);
}

.form-input[readonly] {
    background: var(--bg-light);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.form-input:disabled,
.form-select:disabled,
textarea:disabled {
    background: var(--bg-light);
    color: var(--text-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* ━━━ Form Row ━━━ */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.form-row-2 {
    grid-template-columns: repeat(2, 1fr);
}

.form-row-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
    .form-row, .form-row-2, .form-row-3 {
        grid-template-columns: 1fr !important;
    }
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Tables                                                    ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
}

table { 
    width: 100%; 
    border-collapse: collapse;
}

th { 
    text-align: left; 
    padding: 14px 16px; 
    font-size: 12px; 
    color: var(--text-secondary);
    font-weight: 700; 
    text-transform: uppercase; 
    letter-spacing: 0.5px;
    background: var(--bg-light);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

td { 
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px; 
    color: var(--text-primary);
}

tr:last-child td { 
    border-bottom: none; 
}

tbody tr:hover { 
    background: var(--bg-light);
    transition: all var(--transition-fast);
}

/* ━━━ Table Status Badges ━━━ */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: capitalize;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary);
}

.badge-success {
    background: var(--success-light);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-secondary {
    background: #F3F4F6;
    color: var(--text-secondary);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Buttons                                                   ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.btn { 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    gap: 8px;
    padding: 10px 20px; 
    border: none; 
    border-radius: var(--radius-lg);
    cursor: pointer; 
    font-weight: 600; 
    font-size: 14px; 
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn:active { 
    transform: scale(0.98); 
}

/* ━━━ Primary Button ━━━ */
.btn-primary { 
    background: linear-gradient(135deg, var(--primary) 0%, #0055b8 100%);
    color: white; 
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

.btn-primary:hover { 
    background: linear-gradient(135deg, #0077ED 0%, #0055b8 100%);
    box-shadow: 0 6px 20px rgba(0, 113, 227, 0.4);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ━━━ Secondary Button ━━━ */
.btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-light);
    border-color: var(--text-secondary);
}

/* ━━━ Danger Button ━━━ */
.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: #DC2626;
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4);
}

/* ━━━ Success Button ━━━ */
.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: #059669;
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* ━━━ Small Button ━━━ */
.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: var(--radius-md);
}

/* ━━━ Large Button ━━━ */
.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ━━━ Full Width Button ━━━ */
.btn-block {
    width: 100%;
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Modals & Dialogs                                          ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-fast);
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: auto;
    animation: slideUp var(--transition-normal);
}

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

.modal-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Alerts & Notifications                                   ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.alert {
    padding: 14px 16px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.alert-icon {
    font-size: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-message {
    font-size: 13px;
    opacity: 0.9;
}

.alert-success {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-warning {
    background: var(--warning-light);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-danger {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-info {
    background: var(--primary-light);
    color: var(--primary);
    border: 1px solid rgba(0, 113, 227, 0.2);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Utility Classes                                           ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--text-secondary); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }

.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-column { flex-direction: column; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.hidden { display: none !important; }
.visible { display: block !important; }

.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }

.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

.select-none { user-select: none; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: 9999px; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  侧边栏折叠状态                                             ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

/* 折叠切换按钮 */
.sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 44px;
    background: rgba(255,255,255,0.04);
    border: none;
    border-top: 1px solid rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.4);
    cursor: pointer;
    font-size: 18px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}
.sidebar-toggle:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

/* 折叠态：侧边栏收窄为图标模式 */
.sidebar.sidebar-collapsed {
    width: var(--sidebar-collapsed-width);
}

/* ── 折叠态：Logo 区域只显示图标 ── */
.sidebar.sidebar-collapsed .logo {
    padding: 0;
    justify-content: center;
    height: 56px;
}
.sidebar.sidebar-collapsed .logo-text {
    display: none;
}
.sidebar.sidebar-collapsed .logo i {
    font-size: 24px;
}

/* ── 折叠态：导航区 ── */
.sidebar.sidebar-collapsed .nav {
    padding: 8px 0;
    overflow-x: hidden;
}
.sidebar.sidebar-collapsed .nav a {
    justify-content: center;
    padding: 0;
    margin: 2px 10px;
    width: calc(var(--sidebar-collapsed-width) - 20px);
    height: 42px;
    border-radius: 10px;
    position: relative;
    gap: 0;
}
.sidebar.sidebar-collapsed .nav a .nav-label {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden; clip: rect(0,0,0,0);
    white-space: nowrap;
}
.sidebar.sidebar-collapsed .nav a i {
    font-size: 20px;
    width: auto;
}
/* 折叠态 hover：取消横移，改用平滑高亮 */
.sidebar.sidebar-collapsed .nav a:hover {
    transform: none;
    background: rgba(255,255,255,0.12);
}
/* 折叠态 active：紧凑圆角高亮 */
.sidebar.sidebar-collapsed .nav a.active {
    background: var(--primary);
    box-shadow: 0 2px 10px rgba(0, 113, 227, 0.45);
}

/* ── 折叠态 tooltip（圆润+小箭头） ── */
.sidebar.sidebar-collapsed .nav a::after {
    content: attr(data-title);
    position: absolute;
    left: calc(100% + 14px);
    top: 50%;
    transform: translateY(-50%);
    background: #1E293B;
    color: #F1F5F9;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s, transform 0.15s;
    z-index: 1001;
    box-shadow: 0 4px 14px rgba(0,0,0,0.35);
    letter-spacing: 0.01em;
}
.sidebar.sidebar-collapsed .nav a::before {
    content: '';
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    border: 5px solid transparent;
    border-right-color: #1E293B;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 1001;
}
.sidebar.sidebar-collapsed .nav a:hover::after,
.sidebar.sidebar-collapsed .nav a:hover::before {
    opacity: 1;
}

/* ── 折叠态：分组标题隐藏 ── */
.sidebar.sidebar-collapsed .nav-group-header {
    display: none;
}

/* ── 可折叠导航分组 ── */
.nav-group { margin-bottom: 2px; }
.nav-group-toggle {
    display: flex; align-items: center; justify-content: space-between;
    padding: 12px 16px; color: rgba(255,255,255,0.7); border-radius: var(--radius-lg);
    cursor: pointer; font-size: 14px; font-weight: 500; transition: all var(--transition-fast);
    user-select: none;
}
.nav-group-toggle:hover { background: rgba(255,255,255,0.12); color: var(--text-white); transform: translateX(4px); }
.nav-group-toggle.child-active { color: var(--text-white); font-weight: 600; }
.nav-group-left { display: flex; align-items: center; gap: 12px; }
.nav-group-left i { font-size: 18px; width: 20px; text-align: center; flex-shrink: 0; }
.nav-group-arrow { font-size: 16px; transition: transform 0.25s ease; flex-shrink: 0; opacity: 0.5; }
.nav-group.open .nav-group-arrow { transform: rotate(180deg); }
.nav-group-children {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
    padding-left: 16px;
}
.nav-group.open .nav-group-children { max-height: 200px; }
.nav-group-children a { font-size: 13px; padding: 9px 16px; margin-bottom: 2px; }
.nav-group-children a i { font-size: 15px; }

/* ── 折叠态：分组图标模式 + 子菜单 hover 弹出 ── */
.sidebar.sidebar-collapsed .nav-group { position: relative; margin: 2px 10px; }
.sidebar.sidebar-collapsed .nav-group-toggle {
    justify-content: center;
    padding: 0;
    width: calc(var(--sidebar-collapsed-width) - 20px);
    height: 42px;
    border-radius: 10px;
    position: relative;
}
.sidebar.sidebar-collapsed .nav-group-toggle:hover {
    transform: none;
    background: rgba(255,255,255,0.12);
}
.sidebar.sidebar-collapsed .nav-group-toggle .nav-label {
    position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0);
}
.sidebar.sidebar-collapsed .nav-group-arrow { display: none; }
.sidebar.sidebar-collapsed .nav-group-toggle .nav-group-left i { font-size: 20px; }
.sidebar.sidebar-collapsed .nav-group-children {
    position: absolute;
    left: calc(var(--sidebar-collapsed-width) - 14px);
    top: 50%; transform: translateY(-50%);
    max-height: none; padding-left: 0; width: 170px;
    background: #1E293B;
    border-radius: 10px;
    box-shadow: 0 8px 28px rgba(0,0,0,0.45);
    opacity: 0; pointer-events: none;
    transition: opacity 0.18s;
    z-index: 1002;
    padding: 6px;
}
.sidebar.sidebar-collapsed .nav-group:hover .nav-group-children {
    opacity: 1; pointer-events: auto;
}
.sidebar.sidebar-collapsed .nav-group-children a {
    padding: 9px 14px; margin: 0 0 2px; border-radius: 8px;
    font-size: 13px; color: rgba(255,255,255,0.75);
}
.sidebar.sidebar-collapsed .nav-group-children a:hover {
    background: rgba(255,255,255,0.1); color: #fff; transform: none;
}
.sidebar.sidebar-collapsed .nav-group-children a.active {
    background: var(--primary); color: #fff;
    box-shadow: 0 2px 8px rgba(0, 113, 227, 0.35);
}
/* 折叠态分组 tooltip + 小箭头 */
.sidebar.sidebar-collapsed .nav-group-toggle::after {
    content: attr(data-title); position: absolute;
    left: calc(100% + 14px); top: 50%; transform: translateY(-50%);
    background: #1E293B; color: #F1F5F9; padding: 6px 14px; border-radius: 8px;
    font-size: 13px; font-weight: 500; white-space: nowrap; pointer-events: none;
    opacity: 0; transition: opacity 0.15s; z-index: 1001;
    box-shadow: 0 4px 14px rgba(0,0,0,0.35);
}
.sidebar.sidebar-collapsed .nav-group-toggle::before {
    content: '';
    position: absolute;
    left: calc(100% + 8px);
    top: 50%; transform: translateY(-50%);
    border: 5px solid transparent;
    border-right-color: #1E293B;
    pointer-events: none;
    opacity: 0; transition: opacity 0.15s;
    z-index: 1001;
}
/* hover 时子菜单弹出代替 tooltip */
.sidebar.sidebar-collapsed .nav-group:hover .nav-group-toggle::after,
.sidebar.sidebar-collapsed .nav-group:hover .nav-group-toggle::before { opacity: 0; }

/* ── 折叠态：底部用户信息区 ── */
.sidebar.sidebar-collapsed .sidebar-user-info {
    padding: 10px 0 !important;
    display: flex;
    justify-content: center;
}
.sidebar.sidebar-collapsed .sidebar-user-info > div {
    justify-content: center !important;
    gap: 0 !important;
}
.sidebar.sidebar-collapsed .sidebar-user-detail,
.sidebar.sidebar-collapsed .sidebar-user-actions {
    position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0);
}

/* ── 折叠态：切换按钮图标翻转 ── */
.sidebar.sidebar-collapsed .sidebar-toggle i {
    transform: rotate(180deg);
    transition: transform 0.25s ease;
}

/* ── 移动端侧边栏：汉堡菜单按钮 + 遮罩层（默认隐藏，≤768px 显示） ── */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--text-primary);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
}
.hamburger-btn:hover { background: var(--bg-hover); }

/* 自动创建的轻量 header：桌面端隐藏，移动端仅显示汉堡按钮 */
.header--auto {
    display: none;
    height: auto;
    padding: 0;
    border: none;
    background: transparent;
    box-shadow: none;
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Responsive Design — 统一 4 级桌面断点体系                    ║ */
/* ║  Tier 4: ≥2560px (2K超大屏)                                ║ */
/* ║  Tier 3: ≥1601px (标准桌面 / 全高清)                        ║ */
/* ║  Tier 2: 1367–1600px (笔记本高分 / 小桌面)                   ║ */
/* ║  Tier 1: ≤1366px (笔记本标准 / 缩放125%)                    ║ */
/* ║  Tier 0: ≤768px  (极窄窗口 / 平板)                          ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

/* ── Tier 4: 2K 超大屏（≥2560px） ── */
@media (min-width: 2560px) {
    :root {
        --content-padding-x: 56px;
        --content-padding-y: 36px;
        --content-max-width: 2000px;
    }
    .stats-container {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ── Tier 3: 标准全高清桌面（≥1920px） ── */
@media (min-width: 1920px) and (max-width: 2559px) {
    :root {
        --content-max-width: 1800px;
    }
}

/* ── Tier 3b: 1601-1919px 区间 ── */
/* font-size 已由全局 clamp() 流式处理，无需覆盖 */

/* ── Tier 2: 笔记本高分 / 小桌面（1367–1600px） ── */
@media (min-width: 1367px) and (max-width: 1600px) {
    :root {
        --sidebar-width: 210px;
        --content-padding-x: 30px;
        --content-padding-y: 24px;
    }
    .header h3 { font-size: 22px; }
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }
    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ── Tier 1: 笔记本标准（≤1366px） ── */
@media (max-width: 1366px) {
    :root {
        --sidebar-width: 200px;
        --header-height: 68px;
        --content-padding-x: 24px;
        --content-padding-y: 20px;
    }

    .header h3 { font-size: 20px; }
    .logo { padding: 0 16px; font-size: 16px; }
    .logo i { font-size: 24px; }

    .card { padding: 18px; margin-bottom: 18px; }
    .card-title { font-size: 16px; margin-bottom: 16px; }

    .stat-value { font-size: 24px; }
    .stat-label { font-size: 12px; }
    .stats-container {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
    }

    th { padding: 10px 12px; font-size: 11px; }
    td { padding: 10px 12px; font-size: 13px; }

    .btn { padding: 8px 16px; font-size: 13px; }
    .btn-lg { padding: 10px 20px; font-size: 14px; }

    .nav a { padding: 10px 14px; font-size: 13px; }
    .nav a i { font-size: 16px; }

    .form-input, .form-select, textarea { padding: 9px 12px; font-size: 13px; }
    .form-label { font-size: 12px; }

    .summary-value { font-size: 20px; }

    .info-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .filter-row { gap: 8px; }
    .filter-item select, .filter-item input { padding: 6px 10px; font-size: 12px; height: 34px; }
    .filter-btn { height: 34px; font-size: 12px; padding: 0 12px; }
}

/* ── Tier 0.5: 平板 / iPad 横屏（≤1024px） ── */
@media (max-width: 1024px) {
    .sidebar { width: var(--sidebar-collapsed-width); }
    .sidebar .logo-text,
    .sidebar .nav-label,
    .sidebar .sidebar-user-detail,
    .sidebar .sidebar-user-actions,
    .sidebar .nav-group-header { display: none; }
    .sidebar .nav a { justify-content: center; padding: 12px 0; }
    .sidebar .nav a i { margin: 0; }

    .stats-container { grid-template-columns: repeat(3, 1fr); }
    .info-grid { grid-template-columns: repeat(2, 1fr); }

    /* split-panel / todo-wrapper 垂直堆叠 */
    .split-container,
    .todo-wrapper { flex-direction: column; }
}

/* ── Tier 0: 极窄窗口（≤768px） ── */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 200px;
        --header-height: 60px;
        --content-padding-x: 16px;
        --content-padding-y: 16px;
    }

    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 280px;
        height: 100vh;
        z-index: 200;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
    }
    .sidebar.mobile-open { transform: translateX(0); }
    /* 移动端不折叠 — 展开全宽 */
    .sidebar.sidebar-collapsed { width: 280px; }
    .sidebar.sidebar-collapsed .logo-text,
    .sidebar.sidebar-collapsed .nav-label,
    .sidebar.sidebar-collapsed .sidebar-user-detail,
    .sidebar.sidebar-collapsed .sidebar-user-actions,
    .sidebar.sidebar-collapsed .nav-group-header { display: revert; }
    .sidebar.sidebar-collapsed .nav a { justify-content: flex-start; padding: 12px 16px; }
    .sidebar-toggle { display: none; }

    /* 遮罩层 */
    .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 199; backdrop-filter: blur(2px); }
    .sidebar-overlay.active { display: block; }

    /* 汉堡菜单按钮 */
    .hamburger-btn { display: flex !important; }

    /* 自动注入的 header：移动端显示为固定浮动按钮 */
    .header--auto {
        display: block;
        position: fixed;
        top: 12px;
        left: 12px;
        z-index: 198;
        background: rgba(255,255,255,0.9);
        backdrop-filter: blur(8px);
        border-radius: 10px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.12);
        padding: 4px;
        height: auto;
    }
    .header--auto .hamburger-btn {
        display: flex !important;
        font-size: 20px;
        padding: 6px;
    }

    .header { padding: 0 16px; }
    .header h3 { font-size: 18px; }

    .card { padding: 12px; margin-bottom: 16px; }
    .card-title { font-size: 15px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stats-container { grid-template-columns: repeat(2, 1fr); gap: 8px; }

    .form-row, .form-row-2, .form-row-3 { grid-template-columns: 1fr !important; }

    table { font-size: 12px; }
    th, td { padding: 8px 10px; }

    .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr !important; }

    .modal { width: 95%; max-height: 95vh; }

    .btn { padding: 8px 14px; font-size: 13px; }
    .form-input, .form-select, textarea { padding: 10px 12px; font-size: 16px; /* iOS zoom fix */ }

    .info-grid { grid-template-columns: repeat(2, 1fr); }

    .filter-row { flex-wrap: wrap; }
    .filter-item { min-width: 45%; }
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Loading & Animations                                      ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-light) 25%, var(--border-light) 50%, var(--bg-light) 75%);
    background-size: 200% 100%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Data Visualization                                        ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.chart-container {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 20px;
    border: 1px solid var(--border-light);
    margin-bottom: 20px;
}

.list-group {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.list-item {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item:hover {
    background: var(--bg-light);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Commission & Order Styles                                 ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.order-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.summary-card {
    background: linear-gradient(135deg, var(--primary-light) 0%, #F0F7FF 100%);
    border: 1px solid rgba(0, 113, 227, 0.2);
    padding: 16px;
    border-radius: var(--radius-lg);
}

.summary-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.summary-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Filters & Tabs                                            ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.filter-container {
    background: white;
    border-radius: var(--radius-xl);
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.filter-row {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: nowrap;
}

.filter-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 0;
}

.filter-item label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.filter-item select,
.filter-item input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-primary);
    background-color: var(--bg-light);
    width: 100%;
    height: 38px;
}

.filter-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.filter-btn {
    padding: 0 16px;
    height: 38px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-search {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 5px rgba(0, 113, 227, 0.3);
}

.btn-search:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-reset {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.btn-reset:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding: 4px;
    background: var(--bg-hover);
    border-radius: var(--radius-lg);
    border: none;
    width: fit-content;
}

.tab {
    padding: 8px 24px;
    cursor: pointer;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    border: none;
    font-size: 14px;
    background: transparent;
}

.tab.active {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-xs);
}

.tab:hover:not(.active) {
    background: rgba(255, 255, 255, 0.5);
    color: var(--text-primary);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  Approval Cards                                            ║ */
/* ╚════════════════════════════════════════════════════════════╝ */

.approval-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    border-left: 5px solid var(--warning);
}

.approval-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 10px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
}

.label {
    color: var(--text-tertiary);
    margin-right: 5px;
}

.commission-amount {
    font-size: 18px;
    font-weight: 700;
    color: var(--success);
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  全局表格响应式包装器                                        ║ */
/* ╚════════════════════════════════════════════════════════════╝ */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
@media (max-width: 768px) {
    .table-responsive { margin: 0 calc(-1 * var(--content-padding-x)); padding: 0 var(--content-padding-x); }
    .table-responsive table { min-width: 600px; }
}

/* ╔════════════════════════════════════════════════════════════╗ */
/* ║  移动端触控优化                                              ║ */
/* ╚════════════════════════════════════════════════════════════╝ */
@media (hover: none) and (pointer: coarse) {
    .btn, .filter-btn, .nav a { min-height: 44px; }
    .nav a { padding: 14px 16px; }
    .form-input, .form-select, textarea { min-height: 44px; font-size: 16px; }
    th, td { padding: 12px 10px; }
    .stat-card, .kpi-card { min-height: 44px; }
}