:root {
            /* 浅色干净主题 (Light Apple-like Aesthetic) */
            --bg-color: #f5f5f7;
            --surface-color: #ffffff;
            --surface-glass: rgba(255, 255, 255, 0.85);
            --surface-glass-hover: rgba(255, 255, 255, 0.95);
            --border-glass: rgba(0, 0, 0, 0.08);
            
            --text-primary: #1d1d1f;
            --text-secondary: #555555;
            
            /* 活力反差 (Vibrant Accents) */
            --brand-accent: #0071e3; /* 苹果蓝 */
            --brand-accent-hover: #0077ed;
            --color-success: #34c759; /* 苹果绿 */
            --color-warning: #ff9f0a; /* 苹果橙 */
            --color-error: #ff3b30; /* 苹果红 */
            --color-info: #32ade6;

            /* 排版规范 */
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --font-size-base: 14px;
            --font-size-title: 24px;
            --font-weight-regular: 400;
            --font-weight-semibold: 600;

            /* 卡片规范 */
            --radius-card: 16px;
            --radius-btn: 8px;
            
            /* 布局规范 */
            --spacing-core: 32px;
            --sidebar-width: 260px;
            
            /* 动效规范 */
            --easing: cubic-bezier(0.4, 0, 0.2, 1);
            --duration-hover: 300ms;
            --duration-modal: 400ms;
        }

        @media (prefers-color-scheme: dark) {
            :root {
                --bg-color: #09090b; /* zinc-950 */
                --surface-color: #18181b;
                --surface-glass: rgba(255, 255, 255, 0.03);
                --surface-glass-hover: rgba(255, 255, 255, 0.08);
                --border-glass: rgba(255, 255, 255, 0.08);
                
                --text-primary: #f4f4f5;
                --text-secondary: #a1a1aa;
                
                --brand-accent: #0a84ff;
                --brand-accent-hover: #409cff;
            }
            
            /* 适配暗黑模式的基础元素 */
            .table { color: var(--text-primary); }
            .table-light { background-color: rgba(255, 255, 255, 0.05); color: var(--text-primary); }
            .table-hover>tbody>tr:hover>* { color: var(--text-primary); background-color: rgba(255, 255, 255, 0.05); }
            .modal-content, .offcanvas { background-color: var(--surface-color); border: 1px solid var(--border-glass); }
            .form-control, .form-select { background-color: rgba(255,255,255,0.05); border-color: var(--border-glass); color: var(--text-primary); }
            .form-control:focus, .form-select:focus { background-color: rgba(255,255,255,0.1); color: var(--text-primary); }
            .text-muted { color: var(--text-secondary) !important; }
            .bg-light { background-color: rgba(255,255,255,0.05) !important; color: var(--text-primary); }
            .bg-white { background-color: var(--surface-color) !important; color: var(--text-primary); }
            .btn-outline-secondary { color: var(--text-primary); border-color: var(--border-glass); }
            .btn-outline-secondary:hover { background-color: rgba(255,255,255,0.1); color: var(--text-primary); }
            .btn-close { filter: invert(1) grayscale(100%) brightness(200%); }
            .dropdown-menu { background-color: var(--surface-color); border-color: var(--border-glass); }
            .dropdown-item { color: var(--text-primary); }
            .dropdown-item:hover { background-color: rgba(255,255,255,0.1); color: var(--text-primary); }
        }

        body { 
            background-color: var(--bg-color); 
            font-family: var(--font-family);
            font-size: var(--font-size-base);
            font-weight: var(--font-weight-regular);
            color: var(--text-primary);
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
            position: relative;
            overflow-x: hidden;
            min-height: 100vh;
        }

        /* 动态渐变环境光晕 (浅色版极弱光晕) */
        body::before {
            content: '';
            position: fixed;
            top: -20%;
            left: -10%;
            width: 60vw;
            height: 60vh;
            background: radial-gradient(circle, rgba(0,113,227,0.03) 0%, rgba(245,245,247,0) 70%);
            z-index: -1;
            border-radius: 50%;
            animation: pulseGlow 15s infinite alternate ease-in-out;
            pointer-events: none;
        }

        body::after {
            content: '';
            position: fixed;
            bottom: -20%;
            right: -10%;
            width: 70vw;
            height: 70vh;
            background: radial-gradient(circle, rgba(52,199,89,0.03) 0%, rgba(245,245,247,0) 70%);
            z-index: -1;
            border-radius: 50%;
            animation: pulseGlow2 20s infinite alternate ease-in-out;
            pointer-events: none;
        }

        @keyframes pulseGlow {
            0% { transform: scale(1) translate(0, 0); }
            100% { transform: scale(1.1) translate(5%, 5%); }
        }
        @keyframes pulseGlow2 {
            0% { transform: scale(1) translate(0, 0); }
            100% { transform: scale(1.05) translate(-5%, -5%); }
        }

        /* 标题规范 */
        h1, h2, h3, h4, h5, h6, .modal-title, .card-title, .text-dark {
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary) !important;
        }
        h2 { font-size: var(--font-size-title); margin-bottom: 24px; }

        /* 卡片组件 - 拟态玻璃 */
        .card, .apple-card, .status-box, .quota-card {
            background: var(--surface-glass) !important;
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid var(--border-glass) !important;
            border-radius: var(--radius-card) !important;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
            transition: all var(--duration-hover) var(--easing);
            color: var(--text-primary);
        }
        .card:hover {
            background: var(--surface-glass-hover) !important;
            border-color: rgba(0, 0, 0, 0.12) !important;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08) !important;
        }
        .card-header {
            background: transparent !important;
            border-bottom: 1px solid var(--border-glass) !important;
            padding: 20px 24px;
            font-weight: var(--font-weight-semibold);
            font-size: 16px;
            color: var(--text-primary) !important;
        }
        .card-body { padding: 24px; }
        
        /* 苹果风专用卡片 (用于代码管理等紧凑场景) */
        .apple-card {
            background: var(--surface-color) !important;
            border-radius: 12px !important;
            padding: 20px 24px;
            border: 1px solid var(--border-glass) !important;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02) !important;
            margin-bottom: 16px;
        }
        .apple-card:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
        }
        .quota-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--surface-color) !important;
            border-radius: 10px !important;
            padding: 16px 24px;
            border: 1px solid var(--border-glass) !important;
            margin-bottom: 20px;
        }
        .quota-card .quota-title {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-bottom: 4px;
        }
        .quota-card .quota-value {
            font-size: 16px;
            color: var(--text-primary);
            font-weight: 600;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
        }

        .bg-light { background-color: rgba(0,0,0,0.02) !important; color: var(--text-primary); }
        .text-muted { color: var(--text-secondary) !important; }

        /* 按钮组件 */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 500;
            padding: 8px 16px;
            transition: all var(--duration-hover) var(--easing);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 36px;
        }
        .btn-primary {
            background-color: var(--brand-accent) !important;
            border-color: var(--brand-accent) !important;
            color: #fff !important;
            min-height: 38px;
        }
        .btn-primary:hover {
            background-color: var(--brand-accent-hover) !important;
            border-color: var(--brand-accent-hover) !important;
            box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
            transform: translateY(-1px);
        }
        
        /* 苹果风专用按钮 */
        .apple-btn-primary {
            background-color: var(--brand-accent) !important;
            border-color: var(--brand-accent) !important;
            color: #fff !important;
            border-radius: 8px;
            font-weight: 500;
            font-size: 13px;
            padding: 8px 16px;
            transition: all 0.2s ease;
        }
        .apple-btn-primary:hover {
            background-color: var(--brand-accent-hover) !important;
            border-color: var(--brand-accent-hover) !important;
            box-shadow: 0 4px 10px rgba(0, 113, 227, 0.2);
            transform: translateY(-1px);
        }
        .btn-outline-primary {
            color: var(--brand-accent);
            border-color: var(--brand-accent);
        }
        .btn-outline-primary:hover {
            background-color: rgba(0, 113, 227, 0.08);
            color: var(--brand-accent-hover);
            border-color: var(--brand-accent-hover);
            transform: translateY(-1px);
        }
        .btn-outline-secondary {
            color: var(--text-secondary);
            border-color: rgba(0, 0, 0, 0.15);
            background: transparent;
        }
        .btn-outline-secondary:hover {
            background-color: rgba(0, 0, 0, 0.03);
            color: var(--text-primary);
            border-color: rgba(0, 0, 0, 0.25);
            transform: translateY(-1px);
        }
        .btn-outline-danger {
            color: var(--color-error);
            border-color: rgba(255, 59, 48, 0.3);
            background: transparent;
        }
        .btn-outline-danger:hover {
            background-color: rgba(255, 59, 48, 0.08);
            color: var(--color-error);
            border-color: var(--color-error);
            transform: translateY(-1px);
        }
        
        /* 图标按钮替换 */
        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            padding: 0;
            border-radius: 8px;
            background: rgba(0, 0, 0, 0.02);
            border: 1px solid rgba(0, 0, 0, 0.08);
            color: var(--text-secondary);
            transition: all 0.2s ease;
        }
        .icon-btn:hover {
            background: rgba(0, 0, 0, 0.05);
            color: var(--text-primary);
            transform: translateY(-2px);
        }
        .icon-btn.detail-btn:hover { color: var(--brand-accent); border-color: rgba(0, 113, 227, 0.3); background: rgba(0, 113, 227, 0.08); }
        .icon-btn.code-btn:hover { color: var(--color-success); border-color: rgba(52, 199, 89, 0.3); background: rgba(52, 199, 89, 0.08); }
        .icon-btn.qr-btn:hover { color: var(--color-warning); border-color: rgba(255, 159, 10, 0.3); background: rgba(255, 159, 10, 0.08); }

        /* 表单输入框组件 */
        .form-control, .form-select {
            background-color: var(--surface-color) !important;
            border: 1px solid var(--border-glass) !important;
            color: var(--text-primary) !important;
            border-radius: var(--radius-btn) !important;
            padding: 8px 14px;
            font-size: 14px;
            transition: all var(--duration-hover) var(--easing);
            height: 38px; /* 统一高度 */
        }
        .form-select {
            padding-right: 36px;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right 12px center;
            background-size: 12px 12px;
            appearance: none;
            -webkit-appearance: none;
        }
        @media (prefers-color-scheme: dark) {
            .form-select {
                background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23f4f4f5' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
            }
        }
        .form-control:focus, .form-select:focus {
            background-color: var(--surface-color) !important;
            border-color: var(--brand-accent) !important;
            box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15) !important;
            outline: none;
        }
        
        /* 苹果风专用输入框 */
        .apple-form-control {
            border-radius: 8px;
            border: 1px solid var(--border-glass);
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-primary);
            background-color: var(--surface-color);
            transition: border-color 0.2s, box-shadow 0.2s;
            height: auto;
        }
        .apple-form-control:focus {
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.15);
            outline: none;
        }

        .form-control::placeholder, .apple-form-control::placeholder { color: rgba(0,0,0,0.3); }
        .form-label {
            font-weight: 500;
            color: var(--text-primary) !important;
            margin-bottom: 6px;
            font-size: 13px;
        }
        .apple-label {
            font-weight: 500;
            color: var(--text-primary);
            font-size: 13px;
            margin-bottom: 6px;
            display: inline-block;
        }
        .form-text { color: rgba(0,0,0,0.45) !important; font-size: 12px; }
        .input-group-text {
            background-color: rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.15);
            color: var(--text-secondary);
        }

        /* 布局相关 */
        .login-box { max-width: 400px; margin: 100px auto; background: var(--surface-glass); backdrop-filter: blur(24px); padding: 40px 32px; border-radius: var(--radius-card); border: 1px solid var(--border-glass); box-shadow: 0 12px 36px rgba(0, 0, 0, 0.1); }
        .sidebar { background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px); border-right: 1px solid var(--border-glass); height: 100vh; position: fixed; top: 0; left: 0; width: var(--sidebar-width); padding-top: 24px; z-index: 100; }
        .main-content { margin-left: var(--sidebar-width); padding: var(--spacing-core); width: calc(100% - var(--sidebar-width)); min-height: 100vh; }
        
        /* 导航条 */
        .nav-pills .nav-link {
            border-radius: var(--radius-btn);
            color: var(--text-secondary);
            padding: 10px 18px;
            margin-bottom: 8px;
            transition: all var(--duration-hover) var(--easing);
            font-weight: 500;
        }
        .nav-pills .nav-link:hover {
            background-color: rgba(0,0,0,0.04);
            color: var(--text-primary);
        }
        .nav-pills .nav-link.active { 
            background-color: rgba(0, 113, 227, 0.1); 
            color: var(--brand-accent); 
            border: 1px solid rgba(0, 113, 227, 0.2);
        }

        /* 审核状态区块 */
        .status-header {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .status-box {
            background: #ffffff;
            border: 1px solid rgba(0, 0, 0, 0.08);
            border-radius: 10px;
            padding: 16px;
            font-size: 14px;
        }
        
        /* 历史记录表格对齐优化 */
        .table-custom th {
            font-weight: 500;
            color: var(--text-secondary);
            font-size: 12px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            padding: 12px 16px;
            vertical-align: middle;
            text-align: center;
        }
        .table-custom td {
            font-size: 13px;
            color: var(--text-primary);
            border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            padding: 12px 16px;
            vertical-align: middle;
            text-align: center;
        }
        .table-light { background-color: rgba(0,0,0,0.02) !important; color: var(--text-secondary); }
        .table-hover tbody tr { transition: background-color var(--duration-hover) var(--easing); }
        .table-hover tbody tr:hover { background-color: rgba(0,0,0,0.02); }
        .table td, .table th { border-bottom: 1px solid rgba(0,0,0,0.06); background: transparent !important; }
        .table-hover>tbody>tr:hover>* { color: var(--text-primary); }

        /* 模态框拟态玻璃 */
        .modal-content {
            background: rgba(255, 255, 255, 0.95) !important;
            backdrop-filter: blur(40px);
            -webkit-backdrop-filter: blur(40px);
            border: 1px solid rgba(0, 0, 0, 0.08) !important;
            border-radius: 16px !important;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1) !important;
            color: var(--text-primary);
        }
        .modal-header { border-bottom: 1px solid rgba(0,0,0,0.06) !important; padding: 16px 24px; }
        .modal-footer { border-top: 1px solid rgba(0,0,0,0.06) !important; padding: 16px 24px; }
        .modal-body { padding: 24px 32px; }
        
        /* 苹果风专用模态框 */
        .modal-content.apple-style {
            background-color: var(--bg-color) !important;
            border: 1px solid var(--border-glass) !important;
            border-radius: 14px !important;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15) !important;
        }
        .modal-header.apple-style {
            background-color: var(--surface-color);
            border-bottom: 1px solid var(--border-glass) !important;
            padding: 16px 24px;
            border-radius: 14px 14px 0 0;
        }
        .modal-header.apple-style .modal-title {
            font-size: 16px;
            font-weight: 600;
        }
        .modal-body.apple-style {
            background-color: transparent;
            padding: 24px 32px;
        }

        .btn-close { opacity: 0.5; transition: opacity 0.2s; }
        .btn-close:hover { opacity: 1; }

        /* 徽章高亮反差 */
        .badge { font-weight: 500; border-radius: 6px; padding: 5px 8px; font-size: 12px; }
        .bg-success { background-color: rgba(52, 199, 89, 0.1) !important; color: #28a745 !important; border: 1px solid rgba(52, 199, 89, 0.2); }
        .bg-warning { background-color: rgba(255, 159, 10, 0.1) !important; color: #d39e00 !important; border: 1px solid rgba(255, 159, 10, 0.2); }
        .bg-danger { background-color: rgba(255, 59, 48, 0.1) !important; color: #dc3545 !important; border: 1px solid rgba(255, 59, 48, 0.2); }
        .bg-info { background-color: rgba(50, 173, 230, 0.1) !important; color: #17a2b8 !important; border: 1px solid rgba(50, 173, 230, 0.2); }
        .bg-primary { background-color: rgba(0, 113, 227, 0.1) !important; color: var(--brand-accent) !important; border: 1px solid rgba(0, 113, 227, 0.2); }
        .bg-secondary { background-color: rgba(0, 0, 0, 0.05) !important; color: var(--text-secondary) !important; border: 1px solid rgba(0, 0, 0, 0.1); }

        /* 玻璃态 Toast 提示 */
        .glass-toast {
            position: fixed;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%) translateY(100px) scale(0.9);
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 0, 0, 0.1);
            color: var(--text-primary);
            padding: 12px 24px;
            border-radius: 50px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
            z-index: 9999;
            opacity: 0;
            visibility: hidden;
            transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 500;
        }
        .glass-toast.show {
            transform: translateX(-50%) translateY(0) scale(1);
            opacity: 1;
            visibility: visible;
        }

        /* 手风琴及杂项覆写 */
        .accordion-button { background-color: rgba(0, 0, 0, 0.02) !important; color: var(--text-primary) !important; border: none !important; box-shadow: none !important; }
        .accordion-button:not(.collapsed) { background-color: rgba(0, 113, 227, 0.05) !important; color: var(--brand-accent) !important; }
        .accordion-item { background-color: transparent !important; border: 1px solid rgba(0,0,0,0.08) !important; margin-bottom: 8px; border-radius: 12px !important; overflow: hidden; }
        .accordion-collapse { background-color: rgba(0,0,0,0.01); }
        
        .apple-nav-tabs { background: rgba(0,0,0,0.05); border: none; padding: 4px; border-radius: 8px; display: inline-flex; gap: 4px; margin-bottom: 20px; }
        .apple-nav-tabs .nav-link { color: var(--text-secondary); border: none; border-radius: 6px; padding: 6px 16px; transition: all 0.2s ease; font-size: 13px; font-weight: 500; }
        .apple-nav-tabs .nav-link.active { background: var(--surface-color); color: var(--text-primary); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }
        
        .privacy-doc-container { background: transparent; color: var(--text-primary); padding: 0 !important; }
        .privacy-doc-section { background: var(--surface-color); border: 1px solid var(--border-glass); border-radius: 10px; padding: 20px; margin-bottom: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.02); }
        .privacy-doc-h3 { color: var(--text-primary); font-size: 15px; margin-bottom: 12px; }
        .privacy-doc-p { color: var(--text-secondary); font-size: 13px; }
        .privacy-inline-input { color: var(--brand-accent); background: transparent; border: none; border-bottom: 1px solid var(--border-glass); }
        .privacy-inline-input:focus { border-bottom-color: var(--brand-accent); background: rgba(0,113,227,0.05); }
        .privacy-inline-select { background-color: var(--surface-color); color: var(--text-primary); border: 1px solid var(--border-glass); border-radius: 6px; padding: 4px 8px; }
        .privacy-list-item { background: var(--surface-color); border: 1px solid var(--border-glass); border-radius: 8px; padding: 12px 16px; margin-bottom: 8px; }
        .radio-custom-label { background: var(--surface-color); border: 1px solid var(--border-glass); color: var(--text-primary); padding: 6px 12px; border-radius: 6px; font-size: 13px; }
        
        .border, .border-bottom, .border-top { border-color: rgba(0,0,0,0.08) !important; }

        /* 高级页面加载动画 (Premium Page Loader) */
        #page-loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: var(--bg-color);
            z-index: 99999;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            transition: opacity 0.8s cubic-bezier(0.65, 0, 0.35, 1), visibility 0.8s;
            overflow: hidden;
        }
        #page-loader canvas {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            filter: blur(40px);
            opacity: 0.6;
        }
        #page-loader.fade-out {
            opacity: 0;
            visibility: hidden;
        }
        .loader-content {
            position: relative;
            z-index: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .premium-spinner {
            position: relative;
            width: 80px;
            height: 80px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .spinner-ring {
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            border: 2px solid transparent;
            border-top-color: var(--brand-accent);
            animation: premiumSpin 2s linear infinite;
        }
        .spinner-ring:nth-child(2) {
            width: 70%;
            height: 70%;
            border-top-color: var(--color-success);
            animation-duration: 1.5s;
            animation-direction: reverse;
        }
        .spinner-ring:nth-child(3) {
            width: 40%;
            height: 40%;
            border-top-color: var(--color-info);
            animation-duration: 1s;
        }
        .loader-logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--brand-accent);
            letter-spacing: -0.5px;
            margin-top: 24px;
            background: linear-gradient(135deg, var(--brand-accent), var(--color-info));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: logoFloat 3s ease-in-out infinite;
        }
        .loader-text {
            margin-top: 12px;
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            opacity: 0.8;
        }
        @keyframes premiumSpin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        @keyframes logoFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }