/* Extracted from base.html */
/* ===== 主题变量系统 - 深度重构 ===== */
        :root {
            /* ===== 配色系统 - 基础色 ===== */
            --primary: #4f8cff;
            --primary-hover: #3b7de8;
            --primary-light: #6fa8ff;
            --primary-dark: #2d6bc9;
            --primary-glow: rgba(79,140,255,0.2);
            --primary-soft: rgba(79,140,255,0.1);
            --primary-surface: rgba(79,140,255,0.05);
            
            --success: #10b981;
            --success-hover: #059669;
            --success-bg: rgba(16,185,129,0.12);
            
            --warning: #f59e0b;
            --warning-hover: #d97706;
            --warning-bg: rgba(245,158,11,0.12);
            
            --danger: #ef4444;
            --danger-hover: #dc2626;
            --danger-bg: rgba(239,68,68,0.12);
            
            --info: #8b5cf6;
            --info-hover: #7c3aed;
            --info-bg: rgba(139,92,246,0.12);
            
            --secondary: #64748b;
            --secondary-hover: #475569;
            --secondary-bg: rgba(100,116,139,0.1);
            
            /* ===== 深色模式（默认）- 深空蓝主题 ===== */
            --mode: dark;
            --ui-opacity: 1;
            --bg-body: #0a0f1a;
            --bg-body-light: #111827;
            --bg-card-rgb: 17,24,39;
            --bg-card-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card: rgba(var(--bg-card-rgb), var(--bg-card-alpha));
            --bg-card-hover-rgb: 31,41,55;
            --bg-card-hover-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card-hover: rgba(var(--bg-card-hover-rgb), var(--bg-card-hover-alpha));
            --bg-card-alt-rgb: 17,24,39;
            --bg-card-alt-alpha: calc(0.6 * var(--ui-opacity));
            --bg-card-alt: rgba(var(--bg-card-alt-rgb), var(--bg-card-alt-alpha));
            --bg-hover-rgb: 255,255,255;
            --bg-hover-alpha: calc(0.05 * var(--ui-opacity));
            --bg-hover: rgba(var(--bg-hover-rgb), var(--bg-hover-alpha));
            --bg-input-rgb: 17,24,39;
            --bg-input-alpha: calc(0.9 * var(--ui-opacity));
            --bg-input: rgba(var(--bg-input-rgb), var(--bg-input-alpha));
            --bg-input-focus-rgb: 31,41,55;
            --bg-input-focus-alpha: calc(0.95 * var(--ui-opacity));
            --bg-input-focus: rgba(var(--bg-input-focus-rgb), var(--bg-input-focus-alpha));
            --bg-dropdown-rgb: 10,15,26;
            --bg-dropdown-alpha: 1;
            --bg-dropdown: rgba(var(--bg-dropdown-rgb), var(--bg-dropdown-alpha));
            --bg-popup-rgb: var(--bg-dropdown-rgb);
            --bg-popup-alpha: 1;
            --bg-popup: rgba(var(--bg-popup-rgb), var(--bg-popup-alpha));
            
            --border: rgba(255,255,255,0.08);
            --border-strong: rgba(255,255,255,0.15);
            --border-hover: rgba(79,140,255,0.4);
            --border-focus: rgba(79,140,255,0.6);
            
            --text: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            --text-disabled: #64748b;
            --text-inverse: #0a0f1a;
            
            --nav-bg-rgb: 10,15,26;
            --nav-bg-alpha: 1;
            --nav-bg: rgba(var(--nav-bg-rgb), var(--nav-bg-alpha));
            --nav-bg-hover-rgb: 31,41,55;
            --nav-bg-hover-alpha: 1;
            --nav-bg-hover: rgba(var(--nav-bg-hover-rgb), var(--nav-bg-hover-alpha));
            --nav-border: rgba(255,255,255,0.06);
            
            --scrollbar-thumb: rgba(100,116,139,0.4);
            --scrollbar-hover: rgba(148,163,184,0.6);
            --scrollbar-track: rgba(17,24,39,0.5);

            /* ===== 玻璃态效果变量 ===== */
            --glass-bg-rgb: 17,24,39;
            --glass-bg-alpha: calc(0.7 * var(--ui-opacity));
            --glass-bg: rgba(var(--glass-bg-rgb), var(--glass-bg-alpha));
            --glass-bg-hover-rgb: 31,41,55;
            --glass-bg-hover-alpha: calc(0.8 * var(--ui-opacity));
            --glass-bg-hover: rgba(var(--glass-bg-hover-rgb), var(--glass-bg-hover-alpha));
            --glass-blur: 6px;
            --glass-border: rgba(255,255,255,0.08);
            --glass-border-hover: rgba(79,140,255,0.3);
            --glass-shadow: 0 8px 32px rgba(0,0,0,0.3);
            --glass-shadow-hover: 0 12px 48px rgba(0,0,0,0.4);
            --glass-highlight: inset 0 1px 0 rgba(255,255,255,0.1);
            
            /* ===== 背景自定义变量 ===== */
            --bg-type: gradient;
            --bg-image: none;
            --bg-image-opacity: 0.75;
            --bg-blur: 0px;
            --bg-custom-color: transparent;
            --bg-gradient-start: #0a0f1a;
            --bg-gradient-mid: #111827;
            --bg-gradient-end: #0a0f1a;
            --bg-gradient-angle: 135deg;
            
            /* ===== 字体 ===== */
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
            
            /* ===== 间距系统 ===== */
            --space-1: 4px;
            --space-2: 8px;
            --space-3: 12px;
            --space-4: 16px;
            --space-5: 20px;
            --space-6: 24px;
            --space-8: 32px;
            --space-10: 40px;
            --space-12: 48px;
            --space-16: 64px;
            --space-20: 80px;
            
            /* ===== 圆角系统 ===== */
            --radius-xs: 4px;
            --radius-sm: 6px;
            --radius: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-xl: 16px;
            --radius-2xl: 20px;
            --radius-3xl: 24px;
            --radius-full: 9999px;
            
            /* ===== 阴影系统 ===== */
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.2);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
            --shadow: 0 2px 6px rgba(0,0,0,0.3);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.35);
            --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.45);
            --shadow-glow: 0 0 24px var(--primary-glow);
            --shadow-inner: inset 0 2px 4px rgba(0,0,0,0.2);
            
            /* ===== 布局变量 ===== */
            --nav-height: 56px;
            --sidebar-width: 220px;
            --content-max: 1440px;
            --content-width: 1200px;
            
            /* ===== 动画变量 ===== */
            --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
            --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            --transition-ease-out: 0.3s ease-out;
            
            --transition-font: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        /* ===== 纯净白主题（浅色模式） ===== */
        [data-theme="white"] {
            --mode: light;
            --ui-opacity: 1;
            --bg-body: #f8fafc;
            --bg-body-light: #ffffff;
            --bg-card-rgb: 255,255,255;
            --bg-card-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card: rgba(var(--bg-card-rgb), var(--bg-card-alpha));
            --bg-card-hover-rgb: 255,255,255;
            --bg-card-hover-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card-hover: rgba(var(--bg-card-hover-rgb), var(--bg-card-hover-alpha));
            --bg-card-alt-rgb: 241,245,249;
            --bg-card-alt-alpha: calc(1 * var(--ui-opacity));
            --bg-card-alt: rgba(var(--bg-card-alt-rgb), var(--bg-card-alt-alpha));
            --bg-hover-rgb: 79,140,255;
            --bg-hover-alpha: calc(0.05 * var(--ui-opacity));
            --bg-hover: rgba(var(--bg-hover-rgb), var(--bg-hover-alpha));
            --bg-input-rgb: 241,245,249;
            --bg-input-alpha: calc(1 * var(--ui-opacity));
            --bg-input: rgba(var(--bg-input-rgb), var(--bg-input-alpha));
            --bg-input-focus-rgb: 226,232,240;
            --bg-input-focus-alpha: calc(1 * var(--ui-opacity));
            --bg-input-focus: rgba(var(--bg-input-focus-rgb), var(--bg-input-focus-alpha));
            --bg-dropdown-rgb: 255,255,255;
            --bg-dropdown-alpha: 1;
            --bg-dropdown: rgba(var(--bg-dropdown-rgb), var(--bg-dropdown-alpha));
            --bg-popup-rgb: var(--bg-dropdown-rgb);
            --bg-popup-alpha: 1;
            --bg-popup: rgba(var(--bg-popup-rgb), var(--bg-popup-alpha));
            
            --border: rgba(0,0,0,0.08);
            --border-strong: rgba(0,0,0,0.15);
            --border-hover: rgba(79,140,255,0.3);
            --border-focus: rgba(79,140,255,0.5);
            
            --text: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-disabled: #cbd5e1;
            --text-inverse: #f8fafc;
            
            --nav-bg-rgb: 255,255,255;
            --nav-bg-alpha: 1;
            --nav-bg: rgba(var(--nav-bg-rgb), var(--nav-bg-alpha));
            --nav-bg-hover-rgb: 79,140,255;
            --nav-bg-hover-alpha: calc(0.05 * var(--ui-opacity));
            --nav-bg-hover: rgba(var(--nav-bg-hover-rgb), var(--nav-bg-hover-alpha));
            --nav-border: rgba(0,0,0,0.06);
            
            --scrollbar-thumb: rgba(0,0,0,0.12);
            --scrollbar-hover: rgba(0,0,0,0.25);
            --scrollbar-track: rgba(241,245,249,0.8);
            
            --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow: 0 2px 6px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
            --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
            --shadow-xl: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-glow: 0 0 24px rgba(79,140,255,0.15);
            
            --primary-glow: rgba(79,140,255,0.15);
            --primary-soft: rgba(79,140,255,0.08);
            --primary-surface: rgba(79,140,255,0.04);
            
            --glass-bg-rgb: 255,255,255;
            --glass-bg-alpha: calc(0.8 * var(--ui-opacity));
            --glass-bg: rgba(var(--glass-bg-rgb), var(--glass-bg-alpha));
            --glass-bg-hover-rgb: 255,255,255;
            --glass-bg-hover-alpha: calc(0.95 * var(--ui-opacity));
            --glass-bg-hover: rgba(var(--glass-bg-hover-rgb), var(--glass-bg-hover-alpha));
            --glass-blur: 6px;
            --glass-border: rgba(0,0,0,0.06);
            --glass-border-hover: rgba(79,140,255,0.25);
            --glass-shadow: 0 8px 32px rgba(0,0,0,0.08);
            --glass-shadow-hover: 0 12px 48px rgba(0,0,0,0.12);
            --glass-highlight: inset 0 1px 0 rgba(255,255,255,0.9);
            
            --bg-gradient-start: #f8fafc;
            --bg-gradient-mid: #f1f5f9;
            --bg-gradient-end: #f8fafc;
        }
        
        /* ===== 极光绿主题（深色模式） ===== */
        [data-theme="green"] {
            --mode: dark;
            --primary: #14b8a6;
            --primary-hover: #0d9488;
            --primary-light: #2dd4bf;
            --primary-dark: #0f766e;
            --primary-glow: rgba(20,184,166,0.2);
            --primary-soft: rgba(20,184,166,0.1);
            --primary-surface: rgba(20,184,166,0.05);
            
            --bg-body: #061412;
            --bg-body-light: #0f2724;
            --ui-opacity: 1;
            --bg-card-rgb: 15,39,36;
            --bg-card-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card: rgba(var(--bg-card-rgb), var(--bg-card-alpha));
            --bg-card-hover-rgb: 26,56,52;
            --bg-card-hover-alpha: calc(0.9 * var(--ui-opacity));
            --bg-card-hover: rgba(var(--bg-card-hover-rgb), var(--bg-card-hover-alpha));
            --bg-card-alt-rgb: 15,39,36;
            --bg-card-alt-alpha: calc(0.6 * var(--ui-opacity));
            --bg-card-alt: rgba(var(--bg-card-alt-rgb), var(--bg-card-alt-alpha));
            --bg-hover-rgb: 20,184,166;
            --bg-hover-alpha: calc(0.08 * var(--ui-opacity));
            --bg-hover: rgba(var(--bg-hover-rgb), var(--bg-hover-alpha));
            --bg-input-rgb: 15,39,36;
            --bg-input-alpha: calc(0.9 * var(--ui-opacity));
            --bg-input: rgba(var(--bg-input-rgb), var(--bg-input-alpha));
            --bg-input-focus-rgb: 26,56,52;
            --bg-input-focus-alpha: calc(0.95 * var(--ui-opacity));
            --bg-input-focus: rgba(var(--bg-input-focus-rgb), var(--bg-input-focus-alpha));
            --bg-dropdown-rgb: 6,20,18;
            --bg-dropdown-alpha: 1;
            --bg-dropdown: rgba(var(--bg-dropdown-rgb), var(--bg-dropdown-alpha));
            --bg-popup-rgb: var(--bg-dropdown-rgb);
            --bg-popup-alpha: 1;
            --bg-popup: rgba(var(--bg-popup-rgb), var(--bg-popup-alpha));
            
            --border: rgba(20,184,166,0.12);
            --border-strong: rgba(20,184,166,0.2);
            --border-hover: rgba(20,184,166,0.4);
            --border-focus: rgba(20,184,166,0.6);
            
            --nav-bg-rgb: 6,20,18;
            --nav-bg-alpha: 1;
            --nav-bg: rgba(var(--nav-bg-rgb), var(--nav-bg-alpha));
            --nav-bg-hover-rgb: 26,56,52;
            --nav-bg-hover-alpha: 1;
            --nav-bg-hover: rgba(var(--nav-bg-hover-rgb), var(--nav-bg-hover-alpha));
            --nav-border: rgba(20,184,166,0.1);
            
            --scrollbar-thumb: rgba(20,184,166,0.25);
            --scrollbar-hover: rgba(20,184,166,0.4);
            --scrollbar-track: rgba(15,39,36,0.5);
            
            --shadow-glow: 0 0 24px rgba(20,184,166,0.2);
            
            --glass-bg-rgb: 15,39,36;
            --glass-bg-alpha: calc(0.7 * var(--ui-opacity));
            --glass-bg: rgba(var(--glass-bg-rgb), var(--glass-bg-alpha));
            --glass-bg-hover-rgb: 26,56,52;
            --glass-bg-hover-alpha: calc(0.8 * var(--ui-opacity));
            --glass-bg-hover: rgba(var(--glass-bg-hover-rgb), var(--glass-bg-hover-alpha));
            --glass-blur: 6px;
            --glass-border: rgba(20,184,166,0.12);
            --glass-border-hover: rgba(20,184,166,0.35);
            --glass-shadow: 0 8px 32px rgba(0,0,0,0.35);
            --glass-shadow-hover: 0 12px 48px rgba(0,0,0,0.45);
            --glass-highlight: inset 0 1px 0 rgba(20,184,166,0.15);
            
            --bg-gradient-start: #061412;
            --bg-gradient-mid: #0f2724;
            --bg-gradient-end: #061412;
        }
        
        /* ===== 暮光紫主题（深色模式） ===== */
        [data-theme="purple"] {
            --mode: dark;
            --primary: #a78bfa;
            --primary-hover: #7c3aed;
            --primary-light: #c4b5fd;
            --primary-dark: #6d28d9;
            --primary-glow: rgba(167,139,250,0.2);
            --primary-soft: rgba(167,139,250,0.1);
            --primary-surface: rgba(167,139,250,0.05);
            
            --bg-body: #0a0816;
            --bg-body-light: #1a1533;
            --ui-opacity: 1;
            --bg-card-rgb: 26,21,51;
            --bg-card-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card: rgba(var(--bg-card-rgb), var(--bg-card-alpha));
            --bg-card-hover-rgb: 43,37,82;
            --bg-card-hover-alpha: calc(0.9 * var(--ui-opacity));
            --bg-card-hover: rgba(var(--bg-card-hover-rgb), var(--bg-card-hover-alpha));
            --bg-card-alt-rgb: 26,21,51;
            --bg-card-alt-alpha: calc(0.6 * var(--ui-opacity));
            --bg-card-alt: rgba(var(--bg-card-alt-rgb), var(--bg-card-alt-alpha));
            --bg-hover-rgb: 167,139,250;
            --bg-hover-alpha: calc(0.08 * var(--ui-opacity));
            --bg-hover: rgba(var(--bg-hover-rgb), var(--bg-hover-alpha));
            --bg-input-rgb: 26,21,51;
            --bg-input-alpha: calc(0.9 * var(--ui-opacity));
            --bg-input: rgba(var(--bg-input-rgb), var(--bg-input-alpha));
            --bg-input-focus-rgb: 43,37,82;
            --bg-input-focus-alpha: calc(0.95 * var(--ui-opacity));
            --bg-input-focus: rgba(var(--bg-input-focus-rgb), var(--bg-input-focus-alpha));
            --bg-dropdown-rgb: 10,8,22;
            --bg-dropdown-alpha: 1;
            --bg-dropdown: rgba(var(--bg-dropdown-rgb), var(--bg-dropdown-alpha));
            --bg-popup-rgb: var(--bg-dropdown-rgb);
            --bg-popup-alpha: 1;
            --bg-popup: rgba(var(--bg-popup-rgb), var(--bg-popup-alpha));
            
            --border: rgba(167,139,250,0.12);
            --border-strong: rgba(167,139,250,0.2);
            --border-hover: rgba(167,139,250,0.4);
            --border-focus: rgba(167,139,250,0.6);
            
            --nav-bg-rgb: 10,8,22;
            --nav-bg-alpha: 1;
            --nav-bg: rgba(var(--nav-bg-rgb), var(--nav-bg-alpha));
            --nav-bg-hover-rgb: 43,37,82;
            --nav-bg-hover-alpha: 1;
            --nav-bg-hover: rgba(var(--nav-bg-hover-rgb), var(--nav-bg-hover-alpha));
            --nav-border: rgba(167,139,250,0.1);
            
            --scrollbar-thumb: rgba(167,139,250,0.25);
            --scrollbar-hover: rgba(167,139,250,0.4);
            --scrollbar-track: rgba(26,21,51,0.5);
            
            --shadow-glow: 0 0 24px rgba(167,139,250,0.2);
            
            --glass-bg-rgb: 26,21,51;
            --glass-bg-alpha: calc(0.7 * var(--ui-opacity));
            --glass-bg: rgba(var(--glass-bg-rgb), var(--glass-bg-alpha));
            --glass-bg-hover-rgb: 43,37,82;
            --glass-bg-hover-alpha: calc(0.8 * var(--ui-opacity));
            --glass-bg-hover: rgba(var(--glass-bg-hover-rgb), var(--glass-bg-hover-alpha));
            --glass-blur: 6px;
            --glass-border: rgba(167,139,250,0.12);
            --glass-border-hover: rgba(167,139,250,0.35);
            --glass-shadow: 0 8px 32px rgba(0,0,0,0.35);
            --glass-shadow-hover: 0 12px 48px rgba(0,0,0,0.45);
            --glass-highlight: inset 0 1px 0 rgba(167,139,250,0.15);
            
            --bg-gradient-start: #0a0816;
            --bg-gradient-mid: #1a1533;
            --bg-gradient-end: #0a0816;
        }
        
        /* ===== 烈焰橙主题（深色模式） ===== */
        [data-theme="orange"] {
            --mode: dark;
            --primary: #fb923c;
            --primary-hover: #ea580c;
            --primary-light: #fdba74;
            --primary-dark: #c2410c;
            --primary-glow: rgba(251,146,60,0.2);
            --primary-soft: rgba(251,146,60,0.1);
            --primary-surface: rgba(251,146,60,0.05);
            
            --bg-body: #140c06;
            --bg-body-light: #27180a;
            --ui-opacity: 1;
            --bg-card-rgb: 39,24,10;
            --bg-card-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card: rgba(var(--bg-card-rgb), var(--bg-card-alpha));
            --bg-card-hover-rgb: 62,38,16;
            --bg-card-hover-alpha: calc(0.9 * var(--ui-opacity));
            --bg-card-hover: rgba(var(--bg-card-hover-rgb), var(--bg-card-hover-alpha));
            --bg-card-alt-rgb: 39,24,10;
            --bg-card-alt-alpha: calc(0.6 * var(--ui-opacity));
            --bg-card-alt: rgba(var(--bg-card-alt-rgb), var(--bg-card-alt-alpha));
            --bg-hover-rgb: 251,146,60;
            --bg-hover-alpha: calc(0.08 * var(--ui-opacity));
            --bg-hover: rgba(var(--bg-hover-rgb), var(--bg-hover-alpha));
            --bg-input-rgb: 39,24,10;
            --bg-input-alpha: calc(0.9 * var(--ui-opacity));
            --bg-input: rgba(var(--bg-input-rgb), var(--bg-input-alpha));
            --bg-input-focus-rgb: 62,38,16;
            --bg-input-focus-alpha: calc(0.95 * var(--ui-opacity));
            --bg-input-focus: rgba(var(--bg-input-focus-rgb), var(--bg-input-focus-alpha));
            --bg-dropdown-rgb: 20,12,6;
            --bg-dropdown-alpha: 1;
            --bg-dropdown: rgba(var(--bg-dropdown-rgb), var(--bg-dropdown-alpha));
            --bg-popup-rgb: var(--bg-dropdown-rgb);
            --bg-popup-alpha: 1;
            --bg-popup: rgba(var(--bg-popup-rgb), var(--bg-popup-alpha));
            
            --border: rgba(251,146,60,0.12);
            --border-strong: rgba(251,146,60,0.2);
            --border-hover: rgba(251,146,60,0.4);
            --border-focus: rgba(251,146,60,0.6);
            
            --nav-bg-rgb: 20,12,6;
            --nav-bg-alpha: 1;
            --nav-bg: rgba(var(--nav-bg-rgb), var(--nav-bg-alpha));
            --nav-bg-hover-rgb: 62,38,16;
            --nav-bg-hover-alpha: 1;
            --nav-bg-hover: rgba(var(--nav-bg-hover-rgb), var(--nav-bg-hover-alpha));
            --nav-border: rgba(251,146,60,0.1);
            
            --scrollbar-thumb: rgba(251,146,60,0.25);
            --scrollbar-hover: rgba(251,146,60,0.4);
            --scrollbar-track: rgba(39,24,10,0.5);
            
            --shadow-glow: 0 0 24px rgba(251,146,60,0.2);
            
            --glass-bg-rgb: 39,24,10;
            --glass-bg-alpha: calc(0.7 * var(--ui-opacity));
            --glass-bg: rgba(var(--glass-bg-rgb), var(--glass-bg-alpha));
            --glass-bg-hover-rgb: 62,38,16;
            --glass-bg-hover-alpha: calc(0.8 * var(--ui-opacity));
            --glass-bg-hover: rgba(var(--glass-bg-hover-rgb), var(--glass-bg-hover-alpha));
            --glass-blur: 6px;
            --glass-border: rgba(251,146,60,0.12);
            --glass-border-hover: rgba(251,146,60,0.35);
            --glass-shadow: 0 8px 32px rgba(0,0,0,0.35);
            --glass-shadow-hover: 0 12px 48px rgba(0,0,0,0.45);
            --glass-highlight: inset 0 1px 0 rgba(251,146,60,0.15);
            
            --bg-gradient-start: #140c06;
            --bg-gradient-mid: #27180a;
            --bg-gradient-end: #140c06;
        }
        
        /* ===== 樱花粉主题（深色模式） ===== */
        [data-theme="pink"] {
            --mode: dark;
            --primary: #f472b6;
            --primary-hover: #db2777;
            --primary-light: #f9a8d4;
            --primary-dark: #be185d;
            --primary-glow: rgba(244,114,182,0.2);
            --primary-soft: rgba(244,114,182,0.1);
            --primary-surface: rgba(244,114,182,0.05);
            
            --bg-body: #140810;
            --bg-body-light: #2a1020;
            --ui-opacity: 1;
            --bg-card-rgb: 42,16,32;
            --bg-card-alpha: calc(0.98 * var(--ui-opacity));
            --bg-card: rgba(var(--bg-card-rgb), var(--bg-card-alpha));
            --bg-card-hover-rgb: 68,26,52;
            --bg-card-hover-alpha: calc(0.9 * var(--ui-opacity));
            --bg-card-hover: rgba(var(--bg-card-hover-rgb), var(--bg-card-hover-alpha));
            --bg-card-alt-rgb: 42,16,32;
            --bg-card-alt-alpha: calc(0.6 * var(--ui-opacity));
            --bg-card-alt: rgba(var(--bg-card-alt-rgb), var(--bg-card-alt-alpha));
            --bg-hover-rgb: 244,114,182;
            --bg-hover-alpha: calc(0.08 * var(--ui-opacity));
            --bg-hover: rgba(var(--bg-hover-rgb), var(--bg-hover-alpha));
            --bg-input-rgb: 42,16,32;
            --bg-input-alpha: calc(0.9 * var(--ui-opacity));
            --bg-input: rgba(var(--bg-input-rgb), var(--bg-input-alpha));
            --bg-input-focus-rgb: 68,26,52;
            --bg-input-focus-alpha: calc(0.95 * var(--ui-opacity));
            --bg-input-focus: rgba(var(--bg-input-focus-rgb), var(--bg-input-focus-alpha));
            --bg-dropdown-rgb: 20,8,16;
            --bg-dropdown-alpha: 1;
            --bg-dropdown: rgba(var(--bg-dropdown-rgb), var(--bg-dropdown-alpha));
            --bg-popup-rgb: var(--bg-dropdown-rgb);
            --bg-popup-alpha: 1;
            --bg-popup: rgba(var(--bg-popup-rgb), var(--bg-popup-alpha));
            
            --border: rgba(244,114,182,0.12);
            --border-strong: rgba(244,114,182,0.2);
            --border-hover: rgba(244,114,182,0.4);
            --border-focus: rgba(244,114,182,0.6);
            
            --nav-bg-rgb: 20,8,16;
            --nav-bg-alpha: 1;
            --nav-bg: rgba(var(--nav-bg-rgb), var(--nav-bg-alpha));
            --nav-bg-hover-rgb: 68,26,52;
            --nav-bg-hover-alpha: 1;
            --nav-bg-hover: rgba(var(--nav-bg-hover-rgb), var(--nav-bg-hover-alpha));
            --nav-border: rgba(244,114,182,0.1);
            
            --scrollbar-thumb: rgba(244,114,182,0.25);
            --scrollbar-hover: rgba(244,114,182,0.4);
            --scrollbar-track: rgba(42,16,32,0.5);
            
            --shadow-glow: 0 0 24px rgba(244,114,182,0.2);
            
            --glass-bg-rgb: 42,16,32;
            --glass-bg-alpha: calc(0.7 * var(--ui-opacity));
            --glass-bg: rgba(var(--glass-bg-rgb), var(--glass-bg-alpha));
            --glass-bg-hover-rgb: 68,26,52;
            --glass-bg-hover-alpha: calc(0.8 * var(--ui-opacity));
            --glass-bg-hover: rgba(var(--glass-bg-hover-rgb), var(--glass-bg-hover-alpha));
            --glass-blur: 6px;
            --glass-border: rgba(244,114,182,0.12);
            --glass-border-hover: rgba(244,114,182,0.35);
            --glass-shadow: 0 8px 32px rgba(0,0,0,0.35);
            --glass-shadow-hover: 0 12px 48px rgba(0,0,0,0.45);
            --glass-highlight: inset 0 1px 0 rgba(244,114,182,0.15);
            
            --bg-gradient-start: #140810;
            --bg-gradient-mid: #2a1020;
            --bg-gradient-end: #140810;
        }
        
        /* ===== 基础重置 ===== */
        *, *::before, *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        html {
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
            text-size-adjust: 100%;
            scroll-behavior: smooth;
            background-color: var(--bg-body, #0a0f1a);
        }
        
        body {
            font-family: var(--font-sans);
            background-color: transparent;
            color: var(--text);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            position: relative;
        }
        
        /* 默认类型：由背景层提供背景 */
        body:not([data-bg-type="solid"]) {
            background-color: transparent;
        }
        
        /* 固体类型：使用 body 本身的背景色 */
        body[data-bg-type="solid"] {
            background-color: var(--bg-custom-color, var(--bg-body));
        }

        /* 专用背景层：承载背景图片和模糊效果，前景内容不受影响 */
        #bg-layer {
            position: fixed;
            inset: 0;
            z-index: -1;
            pointer-events: none;
            background-image: 
                radial-gradient(ellipse at 20% 20%, rgba(79,140,255,0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 80%, rgba(139,92,246,0.04) 0%, transparent 50%),
                linear-gradient(var(--bg-gradient-angle), var(--bg-gradient-start) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
            background-attachment: fixed;
            background-size: cover;
            background-position: center;
            opacity: var(--bg-image-opacity);
            transform: scale(1.03);
            /* 渐变背景无需模糊；仅图片背景模糊，降低 GPU 开销 */
        }
        
        /* 仅在设置页面调整时启用过渡（避免加载时动画） */
        html.bg-transition #bg-layer {
            transition: filter 0.3s ease, opacity 0.3s ease;
        }

        body[data-bg-type="image"] #bg-layer {
            background-image: 
                radial-gradient(ellipse at 20% 20%, rgba(79,140,255,0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 80%, rgba(139,92,246,0.08) 0%, transparent 50%),
                var(--bg-image);
            background-size: cover;
            background-position: center;
            /* 图片背景才模糊，且限制最大值，避免大图模糊导致的性能开销 */
            filter: blur(min(var(--bg-blur, 0px), 15px));
        }

        body[data-bg-type="solid"] #bg-layer {
            display: none;
        }

        body[data-bg-type="gradient-custom"] #bg-layer {
            background-image: 
                radial-gradient(ellipse at 20% 20%, rgba(79,140,255,0.04) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 80%, rgba(139,92,246,0.04) 0%, transparent 50%),
                linear-gradient(var(--bg-gradient-angle), var(--bg-custom-color) 0%, var(--bg-gradient-mid) 50%, var(--bg-gradient-end) 100%);
        }

        /* 优化过渡效果 - 缩小范围，提高性能 */
        .btn, .nav-item, .sidebar-item, .card, .stat-card, .form-control, .table-cell {
            transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                        border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                        color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 滑块控件样式 ===== */
        input[type="range"] {
            -webkit-appearance: none;
            appearance: none;
            height: 6px;
            border-radius: 3px;
            background: var(--bg-input);
            outline: none;
            cursor: pointer;
        }

        input[type="range"]::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            box-shadow: 0 2px 8px rgba(79,140,255,0.4);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        input[type="range"]::-webkit-slider-thumb:hover {
            transform: scale(1.1);
            box-shadow: 0 4px 12px rgba(79,140,255,0.5);
        }

        input[type="range"]::-moz-range-thumb {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: var(--primary);
            cursor: pointer;
            border: none;
            box-shadow: 0 2px 8px rgba(79,140,255,0.4);
        }

        input[type="color"] {
            -webkit-appearance: none;
            appearance: none;
            border: none;
            cursor: pointer;
        }

        input[type="color"]::-webkit-color-swatch-wrapper {
            padding: 2px;
        }

        input[type="color"]::-webkit-color-swatch {
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
        }

        /* ===== 玻璃态效果类 ===== */
        .glass {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border: 1px solid var(--glass-border);
            box-shadow: var(--glass-shadow), var(--glass-highlight);
            transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
            will-change: backdrop-filter;
        }

        .glass:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            box-shadow: var(--glass-shadow-hover), var(--glass-highlight);
        }

        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-xl);
            box-shadow: var(--glass-shadow), var(--glass-highlight);
            transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            position: relative;
            overflow: hidden;
            will-change: backdrop-filter, transform;
        }

        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary-glow), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .glass-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            transform: translateY(-2px);
            box-shadow: var(--glass-shadow-hover), var(--glass-highlight);
        }

        .glass-card:hover::before {
            opacity: 1;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        
        button {
            font-family: inherit;
            cursor: pointer;
        }
        
        input, select, textarea {
            font-family: inherit;
        }
        
        /* 滚动条 */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }
        
        /* ===== 桌面端导航栏 ===== */
        .platform-nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--nav-height);
            background: var(--nav-bg);
            border-bottom: 1px solid var(--nav-border);
            display: flex;
            align-items: center;
            padding: 0 var(--space-6);
            z-index: 1000;
            gap: var(--space-5);
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        
        .platform-nav.scrolled {
            box-shadow: 0 4px 16px rgba(0,0,0,0.25);
            border-bottom-color: rgba(255,255,255,0.08);
        }
        
        .nav-brand {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            flex-shrink: 0;
            transition: opacity var(--transition);
        }
        
        .nav-brand:hover {
            opacity: 0.9;
        }
        
        .nav-brand-logo {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            object-fit: cover;
            margin-right: 8px;
            flex-shrink: 0;
        }
        
        .nav-version {
            font-size: 10px;
            font-weight: 600;
            background: var(--primary-glow);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: var(--radius-full);
            border: 1px solid rgba(59,130,246,0.2);
        }
        
        .nav-items {
            display: flex;
            gap: var(--space-1);
            flex: 1;
            overflow-x: auto;
            overflow-y: hidden;
            scrollbar-width: thin;
            scrollbar-color: var(--primary) transparent;
        }
        
        .nav-items::-webkit-scrollbar {
            height: 6px;
        }
        
        .nav-items::-webkit-scrollbar-track {
            background: transparent;
        }
        
        .nav-items::-webkit-scrollbar-thumb {
            background: var(--primary);
            border-radius: 3px;
        }
        
        .nav-items::-webkit-scrollbar-thumb:hover {
            background: var(--primary-hover);
        }
        
        .nav-item {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: background-color var(--transition), color var(--transition);
            flex-shrink: 0;
            position: relative;
        }
        
        .nav-item::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 1px;
            transition: width var(--transition);
        }
        
        .nav-item:hover {
            color: var(--text);
            background: var(--nav-bg-hover);
            transform: translateY(-1px);
        }
        
        .nav-item.active {
            color: var(--primary);
            background: var(--primary-glow);
        }
        
        .nav-item.active::before {
            width: 40%;
        }
        
        .nav-item i {
            font-size: 15px;
            transition: color var(--transition);
        }
        
        .nav-item:hover i {
            color: var(--primary);
        }

        /* ===== 导航下拉菜单 ===== */
        .nav-dropdown {
            position: relative;
        }

        .nav-dropdown-menu {
            position: absolute;
            top: calc(100% + 8px);
            left: 0;
            min-width: 190px;
            background: var(--bg-dropdown);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-xl);
            padding: var(--space-2);
            opacity: 0;
            visibility: hidden;
            transform: translateY(-8px) scale(0.98);
            transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
            z-index: 1001;
        }
        
        .nav-dropdown.open .nav-dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0) scale(1);
        }

        /* 侧边栏下拉：悬停展开（纯 CSS，避免 JS 卡死） */
        .nav-dropdown:hover .nav-dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0) scale(1);
        }

        .nav-dropdown-menu::before {
            content: '';
            position: absolute;
            top: -6px;
            left: 20px;
            width: 12px;
            height: 12px;
            background: var(--bg-dropdown);
            border-left: 1px solid var(--border);
            border-top: 1px solid var(--border);
            transform: rotate(45deg);
        }

        .nav-dropdown-menu a {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            padding: var(--space-3) var(--space-4);
            border-radius: var(--radius-md);
            font-size: 13px;
            color: var(--text-secondary);
            transition: background-color var(--transition), color var(--transition);
        }

        .nav-dropdown-menu a:hover {
            background: var(--bg-hover);
            color: var(--text);
            transform: translateX(4px);
        }

        .nav-dropdown-menu a i {
            font-size: 15px;
            width: 20px;
            text-align: center;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .nav-dropdown-menu a:hover i {
            color: var(--primary);
        }

        .nav-dropdown-menu-divider {
            height: 1px;
            background: var(--border);
            margin: var(--space-2) 0;
        }

        .nav-dropdown-menu-right {
            left: auto;
            right: 0;
        }

        .nav-dropdown-menu-right::before {
            left: auto;
            right: 20px;
            border-left: none;
            border-right: 1px solid var(--border);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            flex-shrink: 0;
        }

        .nav-action-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-secondary);
            font-size: 15px;
            transition: background-color var(--transition), border-color var(--transition), color var(--transition);
            cursor: pointer;
            position: relative;
        }

        .nav-action-btn:hover {
            color: var(--text);
            background: var(--bg-hover);
            border-color: var(--border);
            transform: translateY(-1px);
        }

        .nav-action-btn.active {
            color: var(--primary);
            background: var(--primary-glow);
            border-color: rgba(59,130,246,0.2);
        }

        .nav-action-btn .badge {
            position: absolute;
            top: 4px;
            right: 4px;
            min-width: 16px;
            height: 16px;
            padding: 0 4px;
            background: var(--danger);
            color: white;
            font-size: 9px;
            font-weight: 700;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .nav-theme-btn {
            transition: all var(--transition);
        }

        .nav-theme-btn:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .theme-menu {
            min-width: 180px;
            padding: var(--space-2);
        }

        .theme-option {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            padding: var(--space-3) var(--space-4);
            border-radius: var(--radius-md);
            font-size: 13px;
            color: var(--text-secondary);
            text-decoration: none;
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }

        .theme-option:hover {
            background: var(--bg-hover);
            color: var(--text);
        }

        .theme-option.active {
            background: var(--primary-glow);
            color: var(--primary);
        }

        .theme-dot {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.3);
            border: 2px solid transparent;
            transition: border-color var(--transition);
        }

        .theme-option:hover .theme-dot,
        .theme-option.active .theme-dot {
            border-color: var(--primary);
        }

        .theme-preview {
            width: 28px;
            height: 18px;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.3);
        }
        
        .nav-user {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            font-size: 13px;
            color: var(--text-secondary);
            padding: 8px 14px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .nav-user:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-1px);
        }

        .nav-user-avatar {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--info));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
        }
        
        /* ===== 桌面端内容区 ===== */
        .platform-content {
            padding-top: calc(var(--nav-height) + var(--space-5));
            padding-left: var(--space-5);
            padding-right: var(--space-5);
            padding-bottom: var(--space-8);
            max-width: var(--content-max);
            margin: 0 auto;
        }
        
        /* ===== 通用卡片 ===== */
        .card {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur));
            -webkit-backdrop-filter: blur(var(--glass-blur));
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-xl);
            box-shadow: var(--glass-shadow), var(--glass-highlight);
            transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
            position: relative;
            overflow: hidden;
            will-change: backdrop-filter, transform;
        }

        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(59,130,246,0.3), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }

        .card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            transform: translateY(-2px);
            box-shadow: var(--glass-shadow-hover), var(--glass-highlight);
        }

        .card:hover::before {
            opacity: 1;
        }

        .card-static:hover {
            transform: none;
            box-shadow: var(--shadow-md);
        }

        .card-static::before {
            display: none;
        }
        
        .card-header {
            padding: var(--space-5) var(--space-6);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .card-title {
            font-size: 16px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: var(--space-3);
        }
        
        .card-title i {
            color: var(--primary);
            font-size: 18px;
        }
        
        .card-body {
            padding: var(--space-6);
        }

        .card-footer {
            padding: var(--space-4) var(--space-6);
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: var(--space-3);
        }
        
        /* ===== 统计卡片网格 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--space-5);
            margin-bottom: var(--space-6);
        }
        
        .stat-card {
            padding: var(--space-6);
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-xl);
        }
        
        .stat-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: var(--space-4);
            box-shadow: 0 4px 16px var(--shadow-md);
            transition: transform var(--transition-bounce), box-shadow var(--transition);
        }

        .stat-card .icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 10px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
        }
        
        .stat-card:hover .stat-icon {
            transform: scale(1.1);
            box-shadow: 0 6px 24px var(--shadow-lg);
        }
        
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: var(--space-2);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .stat-value {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: var(--space-2);
        }

        .stat-change {
            font-size: 12px;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .stat-change.positive { color: var(--success); }
        .stat-change.negative { color: var(--danger); }
        
        /* ===== 页面标题 ===== */
        .page-header {
            margin-bottom: var(--space-6);
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--space-4);
        }
        
        .page-title-wrapper {
            display: flex;
            flex-direction: column;
            gap: var(--space-1);
        }
        
        .page-title {
            font-size: 24px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: var(--space-3);
            letter-spacing: -0.5px;
        }
        
        .page-title i {
            color: var(--primary);
            font-size: 22px;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-glow);
            border-radius: var(--radius-md);
        }
        
        .page-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 400;
        }

        .page-actions {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            flex-wrap: wrap;
        }
        
        /* ===== 搜索框 ===== */
        .search-box {
            position: relative;
            max-width: 480px;
            margin-bottom: var(--space-5);
        }
        
        .search-box input {
            width: 100%;
            padding: 10px 14px 10px 42px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            color: var(--text);
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
        }
        
        .search-box input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-glow);
            outline: none;
        }
        
        .search-box input::placeholder {
            color: var(--text-disabled);
        }
        
        .search-box i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
        }
        
        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-2);
            padding: 11px 20px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            border: none;
            cursor: pointer;
            transition: background-color var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            overflow: hidden;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
            transition: left var(--transition-slow);
        }

        .btn:hover::before {
            left: 100%;
        }
        
        .btn:active {
            transform: scale(0.98);
        }
        
        .btn-primary {
            background: var(--primary);
            color: white;
            box-shadow: 0 2px 8px rgba(59,130,246,0.3);
        }
        
        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 4px 16px rgba(59,130,246,0.4);
            transform: translateY(-1px);
        }
        
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
            box-shadow: 0 2px 8px rgba(59,130,246,0.3);
        }
        
        .btn-success { 
            background: var(--success); 
            color: white; 
            box-shadow: 0 2px 8px rgba(16,185,129,0.3);
        }
        .btn-success:hover { 
            background: var(--success-hover); 
            box-shadow: 0 4px 16px rgba(16,185,129,0.4);
            transform: translateY(-1px);
        }
        
        .btn-danger { 
            background: var(--danger); 
            color: white; 
            box-shadow: 0 2px 8px rgba(239,68,68,0.3);
        }
        .btn-danger:hover { 
            background: var(--danger-hover); 
            box-shadow: 0 4px 16px rgba(239,68,68,0.4);
            transform: translateY(-1px);
        }
        
        .btn-warning { 
            background: var(--warning); 
            color: white; 
            box-shadow: 0 2px 8px rgba(245,158,11,0.3);
        }
        .btn-warning:hover { 
            background: var(--warning-hover); 
            box-shadow: 0 4px 16px rgba(245,158,11,0.4);
            transform: translateY(-1px);
        }
        
        .btn-outline {
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }
        
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-glow);
            transform: translateY(-1px);
        }

        .btn-outline-primary {
            border-color: var(--primary);
            color: var(--primary);
        }
        
        .btn-outline-primary:hover {
            background: var(--primary);
            color: white;
        }
        
        .btn-secondary {
            background: var(--bg-card);
            color: var(--text-secondary);
            border: 1px solid var(--border);
        }
        
        .btn-secondary:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            color: var(--text);
        }
        
        .btn-sm {
            padding: 7px 14px;
            font-size: 12px;
        }
        
        .btn-lg {
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
        }
        
        .btn-block {
            width: 100%;
        }
        
        .btn-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            transition: background-color var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
        }
        
        .btn-icon:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-glow);
            transform: translateY(-1px);
        }
        
        .btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none !important;
        }
        
        /* ===== 表单 ===== */
        .form-group {
            margin-bottom: var(--space-5);
        }
        
        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: var(--space-3);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .form-control {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-input);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            color: var(--text);
            font-size: 14px;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 1px 3px rgba(0,0,0,0.1);
        }
        
        .form-control:focus {
            border-color: var(--border-focus);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.08), 0 0 0 3px var(--primary-glow), 0 2px 6px rgba(0,0,0,0.15);
            outline: none;
            background: var(--bg-input-focus);
        }
        
        .form-control::placeholder {
            color: var(--text-disabled);
        }
        
        .form-control:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            background: var(--bg-card-alt);
        }
        
        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }
        
        select.form-control option {
            background: var(--bg-body);
            color: var(--text);
            padding: 8px 12px;
        }

        .form-textarea {
            resize: vertical;
            min-height: 100px;
            line-height: 1.6;
        }

        .form-help {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: var(--space-2);
            display: block;
        }

        .form-error {
            font-size: 12px;
            color: var(--danger);
            margin-top: var(--space-2);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        
        /* ===== 列表项 ===== */
        .list-item {
            display: flex;
            align-items: center;
            gap: var(--space-4);
            padding: var(--space-4) var(--space-5);
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
            color: var(--text);
            cursor: pointer;
            position: relative;
        }
        
        .list-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--primary);
            opacity: 0;
            transition: opacity var(--transition);
            border-radius: 0 3px 3px 0;
        }
        
        .list-item:last-child {
            border-bottom: none;
        }
        
        .list-item:hover {
            background: var(--bg-hover);
            transform: translateX(4px);
        }
        
        .list-item:hover::before {
            opacity: 1;
        }
        
        .list-item-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-glow);
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            transition: transform var(--transition-bounce);
        }
        
        .list-item:hover .list-item-icon {
            transform: scale(1.1);
        }
        
        .list-item-content {
            flex: 1;
            min-width: 0;
        }
        
        .list-item-title {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        
        .list-item-sub {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: var(--space-3);
        }
        
        .list-item-action {
            flex-shrink: 0;
            color: var(--text-muted);
            opacity: 0;
            transition: opacity var(--transition);
        }
        
        .list-item:hover .list-item-action {
            opacity: 1;
        }
        
        /* ===== 标签 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: var(--radius-full);
            font-size: 12px;
            font-weight: 500;
            border: 1px solid transparent;
            transition: all var(--transition);
        }
        
        .tag:hover {
            transform: translateY(-1px);
        }
        
        .tag-primary { background: var(--primary-glow); color: var(--primary); border-color: rgba(59,130,246,0.2); }
        .tag-success { background: var(--success-bg); color: var(--success); border-color: rgba(16,185,129,0.2); }
        .tag-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(245,158,11,0.2); }
        .tag-danger { background: var(--danger-bg); color: var(--danger); border-color: rgba(239,68,68,0.2); }
        .tag-info { background: var(--info-bg); color: var(--info); border-color: rgba(139,92,246,0.2); }
        
        /* ===== 分页 ===== */
        .pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: var(--space-2);
            padding: var(--space-6);
            flex-wrap: wrap;
        }
        
        .pagination a, .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 14px;
            border-radius: var(--radius-md);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
        }
        
        .pagination a {
            background: var(--bg-card);
            border: 1px solid var(--border);
            color: var(--text-secondary);
        }
        
        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-glow);
            transform: translateY(-2px);
        }
        
        .pagination .active {
            background: var(--primary);
            color: white;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(59,130,246,0.3);
        }
        
        .pagination .disabled {
            opacity: 0.4;
            pointer-events: none;
        }
        
        /* ===== Flash消息 ===== */
        .flash-msg {
            position: fixed;
            top: calc(var(--nav-height) + 10px);
            left: 50%;
            transform: translateX(-50%);
            z-index: 9999;
            max-width: 90%;
        }
        
        .alert {
            padding: 10px 18px;
            border-radius: var(--radius);
            font-size: 13px;
            animation: slideDown 0.3s ease;
        }
        
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .alert-success { background: var(--success-bg); border: 1px solid var(--success); color: var(--success); }
        .alert-danger { background: var(--danger-bg); border: 1px solid var(--danger); color: var(--danger); }
        .alert-warning { background: var(--warning-bg); border: 1px solid var(--warning); color: var(--warning); }
        .alert-info { background: var(--info-bg); border: 1px solid var(--info); color: var(--info); }
        
        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: var(--space-12) var(--space-5);
            color: var(--text-muted);
        }
        
        .empty-state i {
            font-size: 48px;
            margin-bottom: var(--space-4);
            opacity: 0.4;
        }
        
        .empty-state h3 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: var(--space-2);
            color: var(--text-secondary);
        }
        
        .empty-state p {
            font-size: 14px;
        }
        
        /* ===== 表格 ===== */
        .table-container {
            overflow-x: auto;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border);
            background: var(--bg-card);
            box-shadow: var(--shadow-md);
        }
        
        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }
        
        .data-table th, .data-table td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border);
            transition: background-color var(--transition), color var(--transition), border-color var(--transition);
        }
        
        .data-table th {
            background: var(--bg-card-alt);
            font-weight: 600;
            color: var(--text-secondary);
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            position: sticky;
            top: 0;
            z-index: 1;
        }
        
        .data-table th:first-child {
            border-radius: var(--radius-xl) 0 0 0;
        }
        
        .data-table th:last-child {
            border-radius: 0 var(--radius-xl) 0 0;
        }
        
        .data-table tr:last-child td {
            border-bottom: none;
        }
        
        .data-table tbody tr:nth-child(even) {
            background: var(--bg-card-alt);
        }
        
        .data-table tbody tr:hover {
            background: var(--bg-hover);
            transform: scale(1.002);
        }
        
        .data-table tbody tr:hover td {
            color: var(--text);
        }
        
        /* ===== 模态框 ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            z-index: 9998;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: var(--space-5);
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition), visibility var(--transition);
        }
        
        .modal-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        
        .modal-content {
            background: var(--bg-popup);
            border: 1px solid var(--border);
            border-radius: var(--radius-2xl);
            max-width: 560px;
            width: 100%;
            max-height: 90vh;
            overflow: auto;
            box-shadow: var(--shadow-xl);
            transform: scale(0.95) translateY(20px);
            transition: transform var(--transition), opacity var(--transition);
            will-change: transform, opacity;
        }
        
        .modal-overlay.open .modal-content {
            transform: scale(1) translateY(0);
        }
        
        .modal-header {
            padding: var(--space-5) var(--space-6);
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .modal-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
        }
        
        .modal-close {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-md);
            background: transparent;
            border: 1px solid transparent;
            color: var(--text-muted);
            font-size: 16px;
            cursor: pointer;
            transition: all var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .modal-close:hover {
            background: var(--bg-hover);
            border-color: var(--border);
            color: var(--text);
        }
        
        .modal-body {
            padding: var(--space-6);
        }
        
        .modal-footer {
            padding: var(--space-4) var(--space-6);
            border-top: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: var(--space-3);
        }
        
        /* ===== Toast ===== */
        #toastContainer {
            position: fixed;
            top: calc(var(--nav-height) + var(--space-5));
            right: var(--space-5);
            z-index: 9999;
            display: flex;
            flex-direction: column;
            gap: var(--space-3);
        }
        
        .toast-item {
            display: flex;
            align-items: center;
            gap: var(--space-3);
            padding: 14px 18px;
            background: var(--bg-popup);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            font-size: 13px;
            box-shadow: var(--shadow-lg);
            animation: toastIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
            max-width: 420px;
            position: relative;
            overflow: hidden;
        }
        
        .toast-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 4px;
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
        }
        
        @keyframes toastIn {
            from { opacity: 0; transform: translateX(100%); }
            to { opacity: 1; transform: translateX(0); }
        }
        
        @keyframes toastOut {
            from { opacity: 1; transform: translateX(0); }
            to { opacity: 0; transform: translateX(100%); }
        }
        
        .toast-success { border-left-color: var(--success); }
        .toast-success::before { background: var(--success); }
        
        .toast-error { border-left-color: var(--danger); }
        .toast-error::before { background: var(--danger); }
        
        .toast-warning { border-left-color: var(--warning); }
        .toast-warning::before { background: var(--warning); }
        
        .toast-info { border-left-color: var(--primary); }
        .toast-info::before { background: var(--primary); }
        
        .toast-icon {
            font-size: 16px;
            flex-shrink: 0;
        }
        
        /* ===== 移动端底部导航 ===== */
        .mobile-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: calc(60px + env(safe-area-inset-bottom, 0px));
            padding-bottom: env(safe-area-inset-bottom, 0px);
            background: var(--bg-card);
            border-top: 1px solid var(--border);
            justify-content: space-around;
            align-items: center;
            z-index: 1000;
        }
        
        .mobile-nav-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 6px 12px;
            color: var(--text-muted);
            text-decoration: none;
            font-size: 11px;
            font-weight: 500;
            min-width: 64px;
            height: 48px;
            position: relative;
            transition: color var(--transition-fast);
        }
        
        .mobile-nav-item i {
            font-size: 22px;
            transition: transform var(--transition-fast);
        }
        
        .mobile-nav-item.active {
            color: var(--primary);
        }
        
        .mobile-nav-item.active::after {
            content: '';
            position: absolute;
            top: 2px;
            width: 16px;
            height: 3px;
            background: var(--primary);
            border-radius: 0 0 3px 3px;
            animation: navDotIn 0.2s ease;
        }
        
        @keyframes navDotIn {
            from { width: 0; opacity: 0; }
            to { width: 16px; opacity: 1; }
        }
        
        .mobile-nav-item:active i {
            transform: scale(0.9);
        }
        
        .mobile-nav-item.active i {
            transform: scale(1.1);
        }
        
        .mobile-nav-item.active span {
            color: var(--primary);
            font-weight: 600;
        }
        
        .mobile-badge {
            position: absolute;
            top: 2px;
            right: 50%;
            transform: translateX(14px);
            background: var(--danger);
            color: white;
            font-size: 10px;
            font-weight: 700;
            min-width: 18px;
            height: 18px;
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 5px;
        }
        
        /* ===== 加载指示器 ===== */
        #globalLoading {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: rgba(0,0,0,0.1);
            z-index: 99999;
            overflow: hidden;
        }
        
        #loadingBar {
            height: 100%;
            background: linear-gradient(90deg, var(--primary), var(--info));
            border-radius: 0 2px 2px 0;
            transition: width 0.3s ease;
        }
        
        /* ===== 通知面板 ===== */
        #notifOverlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(2px);
            -webkit-backdrop-filter: blur(2px);
            z-index: 9998;
        }
        
        #notifPanel {
            position: fixed;
            top: 0;
            right: -400px;
            width: 380px;
            max-width: 90vw;
            height: 100vh;
            background: var(--bg-body);
            border-left: 1px solid var(--border);
            z-index: 9999;
            display: flex;
            flex-direction: column;
            transition: right 0.3s ease;
        }
        
        #notifPanel.open {
            right: 0;
        }
        
        /* ===== 响应式断点 ===== */
        @media (max-width: 1200px) {
            :root {
                --content-max: 1100px;
            }
            
            .stats-grid {
                grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            }
        }
        
        @media (max-width: 1024px) {
            :root {
                --nav-height: 52px;
                --content-max: 900px;
            }
            
            .platform-nav {
                padding: 0 var(--space-4);
            }
            
            .stats-grid {
                grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            }
            
            .page-title {
                font-size: 22px;
            }
        }
        
        @media (max-width: 768px) {
            :root {
                --nav-height: 0px;
                --space-5: 16px;
                --space-6: 20px;
                --content-max: 100%;
            }
            
            /* 隐藏桌面导航 */
            .platform-nav {
                display: none !important;
            }
            
            /* 显示移动端底部导航 */
            .mobile-nav {
                display: flex !important;
            }
            
            /* 调整内容区 */
            .platform-content {
                padding-top: var(--space-4);
                padding-left: var(--space-4);
                padding-right: var(--space-4);
                padding-bottom: calc(70px + env(safe-area-inset-bottom, 0px));
            }
            
            /* 页面标题 */
            .page-header {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .page-title {
                font-size: 20px;
            }
            
            .page-title i {
                width: 32px;
                height: 32px;
                font-size: 20px;
            }
            
            .page-actions {
                width: 100%;
                flex-wrap: wrap;
            }
            
            /* 卡片 */
            .card {
                border-radius: var(--radius-lg);
            }
            
            .card-header {
                padding: var(--space-4);
            }
            
            .card-body {
                padding: var(--space-4);
            }
            
            /* 统计卡片 */
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: var(--space-3);
            }
            
            .stat-card {
                padding: var(--space-4);
            }
            
            .stat-icon {
                width: 44px;
                height: 44px;
                font-size: 20px;
            }
            
            .stat-value {
                font-size: 26px;
            }
            
            .stat-label {
                font-size: 12px;
            }
            
            /* 按钮 */
            .btn {
                padding: 12px 16px;
                font-size: 14px;
                min-height: 44px;
                border-radius: var(--radius-md);
            }
            
            .btn-sm {
                padding: 8px 12px;
                min-height: 36px;
            }
            
            /* 表单 */
            .form-control {
                padding: 14px 16px;
                font-size: 16px;
            }
            
            /* 列表项 */
            .list-item {
                padding: var(--space-4);
                min-height: 60px;
            }
            
            .list-item:hover {
                transform: none;
            }
            
            /* 表格 */
            .table-container {
                margin: 0 calc(-1 * var(--space-4));
                border-radius: 0;
                border-left: none;
                border-right: none;
            }
            
            .data-table th, .data-table td {
                padding: 12px 14px;
                font-size: 13px;
            }
            
            /* 分页 */
            .pagination a, .pagination span {
                min-width: 36px;
                height: 36px;
            }
            
            /* Toast */
            #toastContainer {
                left: var(--space-4);
                right: var(--space-4);
                top: auto;
                bottom: calc(70px + env(safe-area-inset-bottom, 0px));
            }
            
            .toast-item {
                max-width: 100%;
            }
            
            /* 通知面板 */
            #notifPanel {
                width: 100%;
                max-width: 100%;
                right: -100%;
            }
            
            /* Flash消息 */
            .flash-msg {
                top: auto;
                bottom: calc(70px + var(--space-4) + env(safe-area-inset-bottom, 0px));
                left: var(--space-4);
                right: var(--space-4);
                transform: none;
            }
            
            /* 模态框 */
            .modal-content {
                max-height: 95vh;
                border-radius: var(--radius-xl);
            }
        }
        
        @media (max-width: 480px) {
            :root {
                --space-4: 12px;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
                gap: var(--space-3);
            }
            
            .stat-card {
                padding: var(--space-4);
            }
            
            .stat-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
                margin-bottom: var(--space-3);
            }
            
            .stat-value {
                font-size: 24px;
            }
            
            .stat-label {
                font-size: 11px;
            }
            
            .page-title {
                font-size: 18px;
            }
            
            .page-title i {
                width: 28px;
                height: 28px;
                font-size: 18px;
            }
        }
        
        /* 平板横屏 */
        @media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
            :root {
                --nav-height: 52px;
            }
            
            .platform-nav {
                display: flex !important;
            }
            
            .mobile-nav {
                display: none !important;
            }
            
            .platform-content {
                padding-top: calc(var(--nav-height) + var(--space-4));
                padding-bottom: var(--space-6);
            }
            
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }