:root{--primary: #3b82f6;--primary-hover: #2563eb;--bg-app: #ffffff;--bg-panel: #f8fafc;--bg-element: #ffffff;--border: #e2e8f0;--text-main: #1e293b;--text-sub: #64748b;--text-placeholder: #94a3b8;--green: #10b981;--red: #ef4444;--orange: #f59e0b;--shared-color: #8b5cf6;--input-bg: #f1f5f9;--hover-bg: #f1f5f9;--toast-bg: #1e293b;--toast-text: #fff;--search-highlight: #fef08a;--search-text: #854d0e;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--scrollbar-thumb: #cbd5e1;--icon-bg-subtle: #e2e8f0;--theme-switch-bg: #e2e8f0;--tab-bg: #e2e8f0;--tab-active-bg: #ffffff;--tab-active-text: #0f172a;--ai-bg: #f0fdf4}body.dark-mode{--primary: #60a5fa;--primary-hover: #3b82f6;--bg-app: #141e24;--bg-panel: #1d2930;--bg-element: #26333b;--border: #34414b;--text-main: #eef4f8;--text-sub: #9ca8b5;--text-placeholder: #5a6875;--input-bg: #0e151a;--hover-bg: #2e3c45;--shared-color: #a78bfa;--toast-bg: #eef4f8;--toast-text: #141e24;--search-highlight: #854d0e;--search-text: #fef08a;--scrollbar-thumb: #4b5963;--icon-bg-subtle: #26333b;--theme-switch-bg: #26333b;--tab-bg: #0e151a;--tab-active-bg: #26333b;--tab-active-text: #ffffff;--ai-bg: #0d2b26}body.gray-mode{--primary: #525252;--primary-hover: #404040;--bg-app: #f3f4f6;--bg-panel: #e5e7eb;--bg-element: #ffffff;--input-bg: #ffffff;--border: #d1d5db;--text-main: #374151;--text-sub: #6b7280;--text-placeholder: #9ca3af;--hover-bg: #e5e7eb;--shared-color: #6b7280;--green: #4b5563;--red: #4b5563;--orange: #525252;--toast-bg: #374151;--toast-text: #ffffff;--search-highlight: #e5e7eb;--search-text: #111827;--scrollbar-thumb: #9ca3af;--icon-bg-subtle: #f3f4f6;--theme-switch-bg: #e5e7eb;--tab-bg: #e5e7eb;--tab-active-bg: #ffffff;--tab-active-text: #374151;--ai-bg: #f9fafb}body.gray-mode .btn-primary{background-color:var(--primary);color:#fff!important;border:1px solid transparent;box-shadow:0 1px 2px #0000000d}body.gray-mode 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