* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
         .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }

         .nav-menu a {
            color: var(--text-sub);
            text-decoration: none;
            margin-left: 20px;
            font-size: 17px;
            transition: 0.2s;
        }
        .nav-menu a:hover, .nav-menu a.active { color: var(--text-main); }

        :root {
            --bg-primary: #0a0a0f;
            --bg-secondary: #13131d;
            --bg-card: #1a1a26;
            --bg-card-hover: #212133;
            --accent-primary: #6d5dfc;
            --accent-secondary: #8a7fff;
            --accent-glow: rgba(109, 93, 252, 0.15);
            --text-primary: #f0f0ff;
            --text-secondary: #a0a0c0;
            --text-muted: #6a6a8a;
            --border-color: #2a2a3a;
            --success: #00d68f;
            --warning: #ffaa00;
            --danger: #ff3d71;
            --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
            --glass-bg: rgba(26, 26, 38, 0.7);
            --glass-border: rgba(255, 255, 255, 0.08);
        }
        
        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(109, 93, 252, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(138, 127, 255, 0.05) 0%, transparent 20%);
        }
        
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* 装饰性背景元素 */
        .bg-elements {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            pointer-events: none;
        }
        
        .bg-element {
            position: absolute;
            border-radius: 50%;
            filter: blur(60px);
            opacity: 0.1;
        }
        
        .bg-element-1 {
            width: 300px;
            height: 300px;
            background: var(--accent-primary);
            top: 10%;
            left: 5%;
        }
        
        .bg-element-2 {
            width: 400px;
            height: 400px;
            background: var(--accent-secondary);
            bottom: 10%;
            right: 5%;
        }
        
        /* 头部样式 */
        header {
            padding: 28px 0;
            position: relative;
            border-bottom: 1px solid var(--border-color);
            background: var(--bg-secondary);
            backdrop-filter: blur(10px);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            gap: 18px;
        }
        
        .logo-icon {
            position: relative;
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            box-shadow: 0 8px 24px rgba(109, 93, 252, 0.3);
            overflow: hidden;
        }
        
        .logo-icon::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
        }
        
        .logo-icon i {
            font-size: 1.8rem;
            z-index: 1;
        }
        
        .logo-text {
            line-height: 1.3;
        }
        
        .logo-text h1 {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--text-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: -0.5px;
        }
        
        .logo-text p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        
        .header-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .notification-btn {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-card);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
        }
        
        .notification-btn:hover {
            color: var(--text-primary);
            border-color: var(--accent-primary);
        }
        
        .notification-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--danger);
            box-shadow: 0 0 0 2px var(--bg-card);
        }
        
        .user-profile {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 16px;
            border-radius: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        
        .user-profile:hover {
            background: var(--bg-card-hover);
            border-color: var(--accent-primary);
        }
        
        .user-avatar {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        
        .user-info p:first-child {
            font-weight: 600;
            font-size: 0.95rem;
        }
        
        .user-info p:last-child {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        
        /* 主要内容区 */
        .main-content {
            padding: 60px 0;
        }
        
        .welcome-section {
            margin-bottom: 70px;
            max-width: 800px;
        }
        
        .welcome-section h2 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 16px;
            background: linear-gradient(to right, var(--text-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .welcome-section p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 600px;
        }
        
        .highlight {
            color: var(--accent-secondary);
            font-weight: 600;
        }
        
        /* 卡片容器 */
        .cards-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
            gap: 30px;
        }
        
        .card {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 32px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
        }
        
        .card:hover {
            transform: translateY(-8px);
            border-color: var(--accent-primary);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--accent-glow);
        }
        
        .card-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 28px;
            font-size: 1.8rem;
            position: relative;
            z-index: 1;
        }
        
        .card-icon::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: inherit;
            border-radius: inherit;
            opacity: 0.2;
            z-index: -1;
        }
        
        .card-1 .card-icon {
            background: var(--accent-primary);
            color: white;
        }
        
        .card-2 .card-icon {
            background: var(--success);
            color: white;
        }
        
        .card-3 .card-icon {
            background: #8a7fff;
            color: white;
        }
        
        .card-4 .card-icon {
            background: #ff6b9d;
            color: white;
        }
        
        .card-5 .card-icon {
            background: #00d1ff;
            color: white;
        }
        
        .card-6 .card-icon {
            background: #ff9f43;
            color: white;
        }
        
        .card h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        
        .card p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            flex-grow: 1;
            font-size: 0.95rem;
        }
        
        .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        
        .card-status {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }
        
        .status-online {
            background: var(--success);
            box-shadow: 0 0 8px var(--success);
        }
        
        .card-link {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            background: rgba(109, 93, 252, 0.1);
            color: var(--accent-secondary);
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            border: 1px solid rgba(109, 93, 252, 0.2);
        }
        
        .card-link:hover {
            background: rgba(109, 93, 252, 0.2);
            transform: translateX(4px);
            color: white;
        }
        
        .card-link i {
            transition: var(--transition);
        }
        
        .card-link:hover i {
            transform: translateX(6px);
        }
        
        /* 页脚样式 */
        footer {
            margin-top: 80px;
            padding: 40px 0;
            border-top: 1px solid var(--border-color);
        }
        
        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .footer-logo {
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--text-primary), var(--accent-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            height: auto; /* 父容器必须有高度 */
            display: flex; /* 开启 Flexbox */
            align-items: center; /* 关键：实现垂直居中 */
           
        }
        
        .footer-links {
            display: flex;
            gap: 28px;
        }
        
        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        
        .footer-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-primary);
            transition: var(--transition);
        }
        
        .footer-links a:hover {
            color: var(--text-primary);
        }
        
        .footer-links a:hover::after {
            width: 100%;
        }
        
        .copyright {
            text-align: center;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .cards-container {
                grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            }
            
            .welcome-section h2 {
                font-size: 2.8rem;
            }
        }
        
        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 24px;
            }
            
            .header-actions {
                width: 100%;
                justify-content: space-between;
            }
            
            .welcome-section h2 {
                font-size: 2.4rem;
            }
            
            .welcome-section p {
                font-size: 1.1rem;
            }
            
            .cards-container {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                flex-direction: column;
                gap: 28px;
                text-align: center;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }
            
            .welcome-section h2 {
                font-size: 2rem;
            }
            
            .card {
                padding: 24px;
            }
            
            .logo-text h1 {
                font-size: 1.7rem;
            }
        }
        
        /* 滚动条样式 */
        ::-webkit-scrollbar {
            width: 10px;
        }
        
        ::-webkit-scrollbar-track {
            background: var(--bg-secondary);
        }
        
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 5px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent-primary);
        }