/* ============================================
   短网址分流系统 - 管理后台样式 (Premium)
   ============================================ */

:root {
    /* 品牌色系 - Indigo */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #eef2ff;
    --primary-ring: rgba(99,102,241,.18);
    
    /* 语义色 */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --danger-hover: #dc2626;
    
    /* Slate 灰度 */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --white: #ffffff;
    
    /* 侧边栏 */
    --sidebar-bg: #0f172a;
    --sidebar-hover: rgba(255,255,255,.06);
    --sidebar-active: #6366f1;
    --sidebar-text: #94a3b8;
    --sidebar-width: 260px;
    --topbar-height: 64px;
    
    /* 圆角系统 */
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    
    /* 阴影系统 */
    --shadow-xs: 0 1px 2px rgba(0,0,0,.03);
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow: 0 4px 6px -1px rgba(0,0,0,.06), 0 2px 4px -2px rgba(0,0,0,.04);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,.06), 0 4px 6px -4px rgba(0,0,0,.04);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,.08), 0 8px 10px -6px rgba(0,0,0,.04);
    --shadow-xl: 0 25px 50px -12px rgba(0,0,0,.12);
    
    /* 过渡 */
    --transition: 180ms cubic-bezier(.4,0,.2,1);
    --transition-slow: 280ms cubic-bezier(.4,0,.2,1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-hover); }

code {
    background: var(--gray-100);
    padding: 2px 7px;
    border-radius: 5px;
    font-size: 13px;
    color: var(--gray-700);
    font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Consolas', monospace;
    letter-spacing: 0.01em;
}

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

/* ---- 侧边栏 ---- */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    background-image: radial-gradient(ellipse at top, rgba(99,102,241,.12) 0%, transparent 60%);
    color: var(--sidebar-text);
    display: flex; flex-direction: column;
    position: fixed; top: 0; left: 0; bottom: 0;
    z-index: 100; transition: transform .25s ease;
    border-right: 1px solid rgba(255,255,255,.04);
}

.sidebar-brand {
    padding: 22px 24px;
    font-size: 18px; font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,.06);
    letter-spacing: -.01em;
}
.sidebar-brand a { color: #fff; display: flex; align-items: center; gap: 10px; }
.sidebar-brand svg { flex-shrink: 0; }

.sidebar-nav {
    flex: 1; padding: 12px 12px;
    display: flex; flex-direction: column; gap: 2px;
    overflow-y: auto;
}

.nav-item {
    display: flex; align-items: center; gap: 11px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    color: var(--sidebar-text);
    font-size: 14px; font-weight: 500;
    transition: all var(--transition);
    letter-spacing: 0.01em;
}
.nav-item:hover {
    background: var(--sidebar-hover);
    color: #e2e8f0;
}
.nav-item.active {
    background: var(--sidebar-active);
    color: #fff;
    box-shadow: 0 2px 8px rgba(99,102,241,.35);
}
.nav-item svg { flex-shrink: 0; opacity: .7; }
.nav-item:hover svg,
.nav-item.active svg { opacity: 1; }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,.06);
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.sidebar-user {
    font-size: 13px; color: var(--gray-400);
    display: flex; align-items: center; gap: 8px;
}
.sidebar-user svg { opacity: .5; }

/* ---- 主内容区 ---- */
.main-content { flex: 1; margin-left: var(--sidebar-width); min-height: 100vh; }

.topbar {
    height: var(--topbar-height);
    background: rgba(255,255,255,.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    display: flex; align-items: center;
    padding: 0 32px;
    position: sticky; top: 0; z-index: 50;
}
.page-title { font-size: 20px; font-weight: 700; color: var(--gray-900); letter-spacing: -.02em; }
.content-area { padding: 32px; max-width: 1400px; }

/* ===== 面包屑 ===== */
.breadcrumb {
    font-size: 13px; color: var(--gray-500); margin-bottom: 20px;
    display: flex; align-items: center; gap: 6px;
}
.breadcrumb a { color: var(--gray-500); font-weight: 500; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { color: var(--gray-800); font-weight: 500; }

/* ===== 卡片系统 ===== */
.card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    border: 1px solid var(--gray-200);
    overflow: hidden;
    transition: box-shadow var(--transition-slow);
}
.card:hover { box-shadow: var(--shadow-sm); }

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px;
    background: var(--gray-50);
}
.card-header h3 {
    font-size: 15px; font-weight: 600; color: var(--gray-800);
    display: flex; align-items: center; gap: 8px;
    letter-spacing: -.01em;
}
.card-body { padding: 24px; }
.mt-4 { margin-top: 24px; }
.mb-4 { margin-bottom: 24px; }

/* ===== 统计卡片 ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    border: 1px solid var(--gray-200);
    display: flex; align-items: center; gap: 16px;
    box-shadow: var(--shadow-xs);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--primary-light) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-slow);
}
.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    border-color: var(--gray-300);
}
.stat-card:hover::before { opacity: 1; }

.stat-icon {
    font-size: 26px;
    width: 50px; height: 50px;
    display: flex; align-items: center; justify-content: center;
    background: var(--primary-light);
    border-radius: var(--radius);
    flex-shrink: 0;
    position: relative;
    z-index: 1;
}
.stat-icon svg { width: 22px; height: 22px; color: var(--primary); }

.stat-info { display: flex; flex-direction: column; position: relative; z-index: 1; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--gray-900); line-height: 1.15; letter-spacing: -.02em; }
.stat-label { font-size: 12px; color: var(--gray-500); margin-top: 3px; font-weight: 500; letter-spacing: .02em; text-transform: uppercase; }
.stat-card-sm { padding: 16px 20px; }
.stat-card-sm .stat-value { font-size: 22px; }
.stat-card-sm .stat-icon { width: 42px; height: 42px; border-radius: var(--radius-sm); }

/* ===== 仪表盘网格 ===== */
.dashboard-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 20px; }
@media (max-width: 1024px) { .dashboard-grid { grid-template-columns: 1fr; } }

/* ===== 图表 ===== */
.chart-container { height: 240px; display: flex; align-items: flex-end; padding: 8px 0; }
.bar-chart {
    display: flex; align-items: flex-end; justify-content: space-around;
    width: 100%; height: 100%; gap: 10px;
}
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; }
.bar-value { font-size: 11px; color: var(--gray-500); margin-bottom: 5px; font-weight: 500; }
.bar-fill {
    width: 100%; max-width: 52px;
    background: linear-gradient(180deg, var(--primary) 0%, #818cf8 100%);
    border-radius: var(--radius-xs) var(--radius-xs) 0 0;
    min-height: 4px;
    transition: height .6s cubic-bezier(.4,0,.2,1);
    box-shadow: 0 2px 8px rgba(99,102,241,.2);
}
.bar-label { font-size: 10px; color: var(--gray-400); margin-top: 7px; font-weight: 500; }

/* ===== 表格 ===== */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
    padding: 13px 16px; text-align: left;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px;
}
.table th {
    font-weight: 600; color: var(--gray-500); font-size: 11px;
    text-transform: uppercase; letter-spacing: .06em;
    background: var(--gray-50); border-bottom: 2px solid var(--gray-200);
}
.table tbody tr { transition: background var(--transition); }
.table tbody tr:hover { background: var(--gray-50); }
.table tbody tr:last-child td { border-bottom: none; }
.table-sm th, .table-sm td { padding: 9px 12px; font-size: 12px; }
.row-warning { background: #fffbeb !important; border-left: 3px solid var(--warning); }

/* ===== 表单输入 ===== */
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block; font-size: 13px; font-weight: 600;
    color: var(--gray-700); margin-bottom: 7px;
    letter-spacing: .01em;
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    outline: none;
    transition: all var(--transition);
    font-family: inherit;
    background: var(--white);
    color: var(--gray-800);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ring);
}
.form-group input::placeholder { color: var(--gray-400); }
.required { color: var(--danger); }
.form-hint { font-size: 12px; color: var(--gray-400); margin-top: 5px; line-height: 1.5; }

/* Select 自定义箭头 */
.form-select, .form-select-sm {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-position: right 10px center;
    background-repeat: no-repeat;
    background-size: 16px;
    padding-right: 36px;
}

.form-input-sm { padding: 8px 11px !important; font-size: 13px !important; }
.form-select-sm { padding: 8px 32px 8px 11px !important; font-size: 13px !important; }
.form-row { display: flex; gap: 18px; }
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
@media (max-width: 768px) { .form-row { flex-direction: column; gap: 0; } }

.form-actions {
    display: flex; gap: 10px; align-items: center;
    margin-top: 24px; padding-top: 18px;
    border-top: 1px solid var(--gray-100);
}

.form-textarea {
    resize: vertical; line-height: 1.7;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    min-height: 100px;
}
.form-input-full { width: 100%; }

.input-with-prefix {
    display: flex; align-items: stretch;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition);
    background: var(--white);
}
.input-with-prefix:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ring);
}
.input-with-prefix .prefix {
    background: var(--gray-50);
    padding: 10px 14px;
    font-size: 14px; color: var(--gray-500);
    border-right: 1px solid var(--gray-200);
    white-space: nowrap;
    display: flex; align-items: center;
    font-family: 'SF Mono', 'Consolas', monospace;
}
.input-with-prefix input {
    border: none !important; border-radius: 0 !important;
    flex: 1; min-width: 0;
}
.input-with-prefix input:focus {
    box-shadow: none !important;
    border-color: transparent !important;
}

/* ===== 按钮体系 ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    padding: 9px 18px;
    font-size: 14px; font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1.5px solid transparent;
    cursor: pointer; text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
    font-family: inherit;
    line-height: 1.4;
    letter-spacing: .01em;
    position: relative;
    overflow: hidden;
}

/* 主按钮 */
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 1px 3px rgba(99,102,241,.25), 0 1px 2px rgba(99,102,241,.15);
}
.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(99,102,241,.35), 0 2px 4px rgba(99,102,241,.15);
    transform: translateY(-1px);
    color: #fff;
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(99,102,241,.2);
}

/* Outline 按钮 */
.btn-outline {
    background: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-300);
}
.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    color: var(--gray-900);
    box-shadow: var(--shadow-sm);
}

/* Danger Outline */
.btn-danger-outline {
    background: var(--white);
    color: var(--danger);
    border-color: var(--danger-light);
}
.btn-danger-outline:hover {
    background: var(--danger-light);
    color: var(--danger-hover);
    border-color: #fecaca;
    box-shadow: 0 2px 8px rgba(239,68,68,.1);
}

/* 清除数据（危险操作） */
.btn-clear-danger {
    background: var(--white);
    color: #b91c1c;
    border: 1.5px solid #fecaca;
    gap: 5px;
}
.btn-clear-danger:hover {
    background: #fef2f2;
    color: #991b1b;
    border-color: #fca5a5;
    box-shadow: 0 2px 8px rgba(239,68,68,.1);
}

/* Warning 实心按钮 */
.btn-warning {
    background: var(--warning);
    color: #fff;
    border-color: var(--warning);
    box-shadow: 0 1px 3px rgba(245,158,11,.22), 0 1px 2px rgba(245,158,11,.12);
}
.btn-warning:hover {
    background: #d97706;
    border-color: #d97706;
    color: #fff;
    box-shadow: 0 4px 12px rgba(245,158,11,.28), 0 2px 4px rgba(245,158,11,.12);
    transform: translateY(-1px);
}

/* Success 实心按钮 */
.btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
    box-shadow: 0 1px 3px rgba(16,185,129,.22), 0 1px 2px rgba(16,185,129,.12);
}
.btn-success:hover {
    background: #059669;
    border-color: #059669;
    color: #fff;
    box-shadow: 0 4px 12px rgba(16,185,129,.28), 0 2px 4px rgba(16,185,129,.12);
    transform: translateY(-1px);
}

/* Danger 实心按钮 */
.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
    box-shadow: 0 1px 3px rgba(239,68,68,.22), 0 1px 2px rgba(239,68,68,.12);
}
.btn-danger:hover {
    background: var(--danger-hover);
    border-color: var(--danger-hover);
    color: #fff;
    box-shadow: 0 4px 12px rgba(239,68,68,.28), 0 2px 4px rgba(239,68,68,.12);
    transform: translateY(-1px);
}

/* 行内清除按钮 */
.btn-clear-row {
    background: var(--white);
    color: var(--gray-400);
    border: 1.5px solid var(--gray-200);
    gap: 4px;
}
.btn-clear-row:hover {
    background: var(--gray-50);
    color: var(--gray-600);
    border-color: var(--gray-300);
}

/* 尺寸 */
.btn-sm { padding: 6px 13px; font-size: 12px; border-radius: var(--radius-xs); }
.btn-lg { padding: 11px 24px; font-size: 15px; }

/* 图标按钮 */
.btn-icon {
    background: none; border: none; cursor: pointer;
    padding: 5px; border-radius: var(--radius-xs);
    font-size: 15px; line-height: 1;
    transition: all var(--transition);
    color: var(--gray-400);
}
.btn-icon:hover { background: var(--gray-100); color: var(--gray-600); }

/* ===== 搜索 & 工具条 ===== */
.toolbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.toolbar-left, .toolbar-right { display: flex; gap: 10px; align-items: center; }
.search-form { display: flex; gap: 8px; align-items: center; }

.search-input {
    padding: 9px 15px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 14px; width: 280px;
    outline: none;
    transition: all var(--transition);
    background: var(--white);
}
.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ring);
}
.search-input::placeholder { color: var(--gray-400); }

/* 筛选 */
.filter-form { width: 100%; }
.filter-row {
    display: flex; gap: 14px; flex-wrap: wrap;
    align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 5px; }
.filter-actions {
    flex-direction: row;
    align-items: flex-end;
    gap: 8px;
}
.filter-actions .btn {
    margin-top: auto;
}
.inline-action-row {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    flex-wrap: wrap;
}
.inline-field {
    flex: 1;
    min-width: 260px;
}
.inline-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 7px;
    letter-spacing: .01em;
}
.inline-field input[type="text"],
.inline-field input[type="number"],
.inline-field input[type="password"],
.inline-field input[type="date"],
.inline-field select,
.inline-field textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1.5px solid var(--gray-300);
    border-radius: var(--radius-sm);
    outline: none;
    transition: all var(--transition);
    font-family: inherit;
    background: var(--white);
    color: var(--gray-800);
}
.inline-field input:focus,
.inline-field select:focus,
.inline-field textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ring);
}
.phone-delete-form .form-hint {
    margin-top: 8px;
}
.phone-action-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.card-header-actions {
    align-items: center;
}
.card-header-btns {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.filter-group label {
    font-size: 11px; font-weight: 600; color: var(--gray-500);
    text-transform: uppercase; letter-spacing: .05em;
}

/* ===== 提示 ===== */
.alert {
    padding: 13px 18px; border-radius: var(--radius-sm);
    font-size: 13px; margin-bottom: 20px;
    border: 1px solid transparent;
    font-weight: 500;
}
.alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border-color: #fecaca;
}
.alert-success {
    background: var(--success-light);
    color: #065f46;
    border-color: #a7f3d0;
}

/* ===== 徽章 ===== */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 11px;
    border-radius: 20px;
    font-size: 11px; font-weight: 600;
    white-space: nowrap;
    letter-spacing: .02em;
}
.badge-success { background: var(--success-light); color: #065f46; }
.badge-danger  { background: var(--danger-light); color: #991b1b; }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-secondary { background: var(--gray-100); color: var(--gray-600); }
.badge-whatsapp { background: #dcfce7; color: #166534; }

/* ===== 切换开关 ===== */
.toggle-switch {
    position: relative; display: inline-block;
    width: 44px; height: 24px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute; cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--gray-300);
    border-radius: 24px;
    transition: background var(--transition);
}
.toggle-slider::before {
    content: "";
    position: absolute;
    height: 18px; width: 18px;
    left: 3px; bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition);
    box-shadow: var(--shadow-sm);
}
.toggle-switch input:checked + .toggle-slider {
    background: var(--success);
}
.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ===== 分页 ===== */
.pagination {
    display: flex; justify-content: center; align-items: center;
    gap: 14px; margin-top: 24px;
}
.page-info { font-size: 13px; color: var(--gray-500); font-weight: 500; }

/* ===== 空状态 ===== */
.empty-state {
    text-align: center; padding: 48px 24px; color: var(--gray-500);
}
.empty-state p { margin-bottom: 14px; font-size: 15px; }
.empty-state svg { opacity: .35; margin-bottom: 8px; }

/* ===== 链接信息栏 ===== */
.link-info-bar {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 12px;
}
.link-info-bar code { font-size: 14px; }
.link-info-bar > div { display: flex; align-items: center; gap: 8px; }

/* ===== 单元格组件 ===== */
.slug-cell { display: flex; align-items: center; gap: 6px; }
.action-btns { display: flex; gap: 5px; align-items: center; }
.url-text {
    max-width: 300px; display: inline-block;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    vertical-align: middle;
}
.ua-text {
    max-width: 200px; display: inline-block;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-size: 11px; color: var(--gray-500);
}
.text-muted { color: var(--gray-500); }

.hidden { display: none !important; }

/* ===== 规则列表 ===== */
.rule-list { list-style: none; padding: 0; }
.rule-list li {
    padding: 11px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px; line-height: 1.7; color: var(--gray-600);
}
.rule-list li:last-child { border-bottom: none; padding-bottom: 0; }
.rule-list li strong { color: var(--gray-800); }

/* ===== 信息网格 ===== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 18px;
}
.info-item { display: flex; flex-direction: column; gap: 5px; }
.info-label {
    font-size: 11px; color: var(--gray-500);
    text-transform: uppercase; letter-spacing: .06em;
    font-weight: 600;
}
.info-value {
    font-size: 15px; font-weight: 500; color: var(--gray-800);
    display: flex; align-items: center; gap: 8px;
}

/* ===== Toast 通知 ===== */
.toast {
    position: fixed; top: 24px; right: 24px;
    padding: 13px 22px;
    border-radius: var(--radius-sm);
    color: #fff; font-size: 14px; font-weight: 500;
    z-index: 9999;
    opacity: 0; transform: translateY(-12px) scale(.96);
    transition: all .25s cubic-bezier(.4,0,.2,1);
    pointer-events: none;
    box-shadow: var(--shadow-lg);
    letter-spacing: .01em;
}
.toast.show {
    opacity: 1; transform: translateY(0) scale(1);
}
.toast-success { background: linear-gradient(135deg, #10b981, #059669); }
.toast-error   { background: linear-gradient(135deg, #ef4444, #dc2626); }

.copy-btn.copied { color: var(--success); }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .topbar { padding: 14px 18px; }
    .content-area { padding: 20px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar-left, .toolbar-right { flex-wrap: wrap; }
    .search-input { width: 100%; }
    .filter-row { flex-direction: column; }
    .filter-actions {
        width: 100%;
        justify-content: flex-start;
        align-items: stretch;
    }
    .inline-action-row {
        flex-direction: column;
        align-items: stretch;
    }
    .inline-field {
        min-width: 100%;
    }
    .card-header { flex-wrap: wrap; }
    .card-header-btns {
        width: 100%;
    }
}

/* ===== Premium visual upgrade ===== */
:root {
    --bg-deep: #020617;
    --bg-elevated: rgba(15, 23, 42, 0.72);
    --surface-glass: rgba(255,255,255,.72);
    --surface-glass-strong: rgba(255,255,255,.82);
    --ring-strong: rgba(99,102,241,.22);
}

html { background: var(--bg-deep); }

body.admin-body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(99,102,241,.12) 0%, transparent 26%),
        radial-gradient(circle at 85% 15%, rgba(56,189,248,.09) 0%, transparent 24%),
        linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.admin-layout {
    position: relative;
    background: transparent;
}

.main-content {
    position: relative;
    background: transparent;
}

.topbar {
    height: 80px;
    padding: 0 32px;
    justify-content: space-between;
    background: rgba(248,250,252,.62);
    border-bottom: 1px solid rgba(148,163,184,.18);
    box-shadow: 0 8px 30px rgba(15,23,42,.05);
}

.topbar-kicker {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .16em;
    color: var(--primary);
    margin-bottom: 2px;
}

.topbar-meta { display: flex; align-items: center; gap: 10px; }

.topbar-chip {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,.78);
    border: 1px solid rgba(148,163,184,.2);
    color: var(--gray-700);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
    box-shadow: 0 10px 25px rgba(15,23,42,.06);
}

.content-area {
    padding: 28px 32px 36px;
}

.sidebar {
    background:
        linear-gradient(180deg, rgba(15,23,42,.96) 0%, rgba(2,6,23,.98) 100%);
    border-right: 1px solid rgba(255,255,255,.06);
    box-shadow: 24px 0 60px rgba(2,6,23,.22);
}

.sidebar-brand {
    position: relative;
    padding: 24px;
}

.sidebar-brand::after {
    content: '';
    position: absolute;
    left: 24px;
    right: 24px;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(255,255,255,.12), rgba(255,255,255,0));
}

.nav-item {
    border: 1px solid transparent;
}

.nav-item:hover {
    border-color: rgba(255,255,255,.06);
    transform: translateX(2px);
}

.nav-item.active {
    background: linear-gradient(135deg, #6366f1 0%, #7c3aed 100%);
    border-color: rgba(255,255,255,.1);
    box-shadow: 0 12px 24px rgba(99,102,241,.28);
}

.card,
.stat-card {
    background: rgba(255,255,255,.74);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid rgba(255,255,255,.58);
    box-shadow: 0 20px 45px rgba(15,23,42,.08), inset 0 1px 0 rgba(255,255,255,.5);
}

.card:hover,
.stat-card:hover {
    box-shadow: 0 24px 60px rgba(15,23,42,.12), inset 0 1px 0 rgba(255,255,255,.55);
}

.card-header {
    background: linear-gradient(180deg, rgba(255,255,255,.62) 0%, rgba(248,250,252,.42) 100%);
    border-bottom: 1px solid rgba(148,163,184,.14);
}

.stat-card {
    border-radius: 22px;
}

.stat-icon {
    background: linear-gradient(135deg, rgba(99,102,241,.14) 0%, rgba(129,140,248,.22) 100%);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.5), 0 10px 22px rgba(99,102,241,.14);
}

.stat-value {
    font-size: 30px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group select,
.form-group textarea,
.search-input {
    background: rgba(255,255,255,.84);
    border: 1px solid rgba(148,163,184,.22);
    border-radius: 14px;
    min-height: 46px;
    box-shadow: inset 0 1px 2px rgba(15,23,42,.02);
}

.form-group textarea,
.form-textarea {
    min-height: 120px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.search-input:focus {
    border-color: rgba(99,102,241,.7);
    box-shadow: 0 0 0 4px var(--ring-strong), 0 10px 24px rgba(99,102,241,.08);
    background: #fff;
}

.input-with-prefix {
    border: 1px solid rgba(148,163,184,.22);
    border-radius: 14px;
    background: rgba(255,255,255,.84);
}

.input-with-prefix .prefix {
    background: rgba(248,250,252,.92);
    color: var(--gray-600);
}

.input-with-prefix:focus-within {
    border-color: rgba(99,102,241,.7);
    box-shadow: 0 0 0 4px var(--ring-strong), 0 10px 24px rgba(99,102,241,.08);
}

.btn {
    border-radius: 14px;
    min-height: 42px;
    font-weight: 600;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-color: rgba(255,255,255,.08);
    box-shadow: 0 14px 28px rgba(99,102,241,.22), inset 0 1px 0 rgba(255,255,255,.18);
}

.btn-primary:hover {
    box-shadow: 0 18px 36px rgba(99,102,241,.28), inset 0 1px 0 rgba(255,255,255,.18);
    filter: brightness(1.03);
}

.btn-outline,
.btn-danger-outline,
.btn-clear-danger,
.btn-clear-row {
    background: rgba(255,255,255,.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-outline:hover,
.btn-danger-outline:hover,
.btn-clear-danger:hover,
.btn-clear-row:hover {
    transform: translateY(-1px);
}

.table th {
    background: rgba(248,250,252,.78);
    color: var(--gray-600);
}

.table tbody tr {
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.table tbody tr:hover {
    background: rgba(255,255,255,.8);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.4);
}

.badge {
    border: 1px solid rgba(255,255,255,.38);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.3);
}

.alert {
    border-radius: 14px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 16px 36px rgba(15,23,42,.06);
}

.pagination {
    margin-top: 28px;
}

.toast {
    border: 1px solid rgba(255,255,255,.18);
}

@media (max-width: 768px) {
    .topbar {
        height: auto;
        min-height: 72px;
        padding: 14px 18px;
        gap: 10px;
        flex-wrap: wrap;
    }

    .topbar-meta {
        width: 100%;
        justify-content: flex-start;
    }
}