:root {
            /* Theme Transition */
            --theme-transition: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                               color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                               border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                               box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            
            /* Core Brand Colors - Never change */
            --brand-primary: #0045ff;
            --brand-secondary: #00f0ff;
            --brand-accent: #7000ff;
            
            /* Theme Colors - Dark Mode (default) */
            --primary-color: var(--brand-primary);
            --secondary-color: var(--brand-secondary);
            --accent-color: var(--brand-accent);
            --text-color: #e1e6ff;
            --text-muted: rgba(255, 255, 255, 0.7);
            --text-subtle: rgba(255, 255, 255, 0.6);
            --text-disabled: rgba(255, 255, 255, 0.4);
            
            /* Background Colors */
            --bg-primary: #050a1c;
            --bg-secondary: #020814;
            --bg-tertiary: #0a1228;
            --bg-surface: rgba(255, 255, 255, 0.03);
            --bg-elevated: rgba(255, 255, 255, 0.05);
            --bg-overlay: rgba(5, 15, 35, 0.5);
            
            /* Border and Divider Colors */
            --border-primary: rgba(255, 255, 255, 0.05);
            --border-secondary: rgba(255, 255, 255, 0.1);
            --border-focus: var(--secondary-color);
            
            /* Effect Colors */
            --grid-color: rgba(6, 37, 170, 0.15);
            --glow-color: rgba(0, 210, 255, 0.1);
            --shadow-color: rgba(0, 0, 0, 0.2);
            --backdrop-blur: blur(10px);
            
            /* Interactive States */
            --hover-overlay: rgba(255, 255, 255, 0.1);
            --active-overlay: rgba(255, 255, 255, 0.2);
            
            /* Compatibility - keep old variable names */
            --dark-bg: var(--bg-primary);
            --darker-bg: var(--bg-secondary);
        }
        
        /* Light Theme */
        [data-theme="light"] {
            --text-color: #1a202c;
            --text-muted: rgba(0, 0, 0, 0.7);
            --text-subtle: rgba(0, 0, 0, 0.6);
            --text-disabled: rgba(0, 0, 0, 0.4);
            
            /* Background Colors */
            --bg-primary: #ffffff;
            --bg-secondary: #f8fafc;
            --bg-tertiary: #f1f5f9;
            --bg-surface: rgba(0, 0, 0, 0.03);
            --bg-elevated: rgba(0, 0, 0, 0.05);
            --bg-overlay: rgba(255, 255, 255, 0.9);
            
            /* Border and Divider Colors */
            --border-primary: rgba(0, 0, 0, 0.1);
            --border-secondary: rgba(0, 0, 0, 0.15);
            
            /* Effect Colors */
            --grid-color: rgba(6, 37, 170, 0.08);
            --glow-color: rgba(0, 102, 255, 0.15);
            --shadow-color: rgba(0, 0, 0, 0.1);
            
            /* Interactive States */
            --hover-overlay: rgba(0, 0, 0, 0.05);
            --active-overlay: rgba(0, 0, 0, 0.1);
            
            /* Compatibility - keep old variable names */
            --dark-bg: var(--bg-primary);
            --darker-bg: var(--bg-secondary);
        }
        
        /* High Contrast Theme Support */
        @media (prefers-contrast: high) {
            :root {
                --border-primary: rgba(255, 255, 255, 0.3);
                --border-secondary: rgba(255, 255, 255, 0.5);
                --bg-surface: rgba(255, 255, 255, 0.1);
                --bg-elevated: rgba(255, 255, 255, 0.15);
            }
            
            [data-theme="light"] {
                --border-primary: rgba(0, 0, 0, 0.3);
                --border-secondary: rgba(0, 0, 0, 0.5);
                --bg-surface: rgba(0, 0, 0, 0.1);
                --bg-elevated: rgba(0, 0, 0, 0.15);
            }
        }
        
        /* Reduced Motion Support */
        @media (prefers-reduced-motion: reduce) {
            :root {
                --theme-transition: none;
            }
            
            * {
                animation-duration: 0.01s !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01s !important;
            }
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
        }

        .visually-hidden {
            position: absolute !important;
            width: 1px;
            height: 1px;
            margin: -1px;
            padding: 0;
            overflow: hidden;
            clip: rect(0 0 0 0);
            white-space: nowrap;
            border: 0;
        }
        
        body {
            background-color: var(--bg-primary);
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
            transition: var(--theme-transition);
        }
        
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }
        
        /* Grid Background Effect */
        .grid-background {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
                linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
            background-size: 50px 50px;
            z-index: 0;
            opacity: 0.4;
        }
        
        /* Glow Effects */
        .glow-effect {
            position: absolute;
            border-radius: 50%;
            filter: blur(80px);
            z-index: 0;
            opacity: 0.6;
        }
        
        .glow-1 {
            top: 20%;
            left: 10%;
            width: 300px;
            height: 300px;
            background: var(--primary-color);
        }
        
        .glow-2 {
            bottom: 10%;
            right: 5%;
            width: 250px;
            height: 250px;
            background: var(--secondary-color);
        }
        
        .glow-3 {
            top: 60%;
            left: 50%;
            width: 200px;
            height: 200px;
            background: var(--accent-color);
        }
        
        /* Logo Dot Animation */
        .logo-dots-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            overflow: visible;
            pointer-events: none;
        }
        
        .logo-dots {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 600px;
            height: 600px;
            perspective: 1200px;
            transform-style: preserve-3d;
            will-change: transform;
        }
        
        .dot {
            position: absolute;
            background-color: #00a0e9;
            border-radius: 50%;
            opacity: 0.8;
            transform-style: preserve-3d;
            will-change: transform;
            transition: transform 0.1s ease-out;
        }
        
        .dot-light {
            background-color: #33c6ff;
            transition: var(--theme-transition);
        }
        
        .dot-medium {
            background-color: #0081bb;
            transition: var(--theme-transition);
        }
        
        .dot-dark {
            background-color: #003366;
            transition: var(--theme-transition);
        }
        
        /* Light theme dot colors */
        [data-theme="light"] .dot-light {
            background-color: #0066cc;
        }
        
        [data-theme="light"] .dot-medium {
            background-color: #004499;
        }
        
        [data-theme="light"] .dot-dark {
            background-color: #002266;
        }
        
        @keyframes rotateDots {
            0% {
                transform: rotateY(0deg) rotateX(0deg);
            }
            100% {
                transform: rotateY(360deg) rotateX(180deg);
            }
        }

        @keyframes i18n-spin {
            to {
                transform: rotate(360deg);
            }
        }
        
        /* Header Styles */
        header {
            background-color: var(--bg-overlay);
            backdrop-filter: var(--backdrop-blur);
            position: fixed;
            width: 100%;
            z-index: 1000;
            border-bottom: 1px solid var(--border-primary);
            transition: var(--theme-transition);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        
        .logo-image {
            height: 40px;
            width: auto;
            margin-right: 10px;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 8px;
            margin-right: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        
        .logo-icon::before {
            content: "A";
            color: white;
            font-weight: bold;
            font-size: 20px;
            z-index: 2;
        }
        
        .logo-icon::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.4) 40%, rgba(255, 255, 255, 0.4) 60%, transparent 70%);
            transform: translateX(-100%);
            animation: shimmer 3s infinite;
        }
        
        @keyframes shimmer {
            0% {
                transform: translateX(-100%);
            }
            20% {
                transform: translateX(100%);
            }
            100% {
                transform: translateX(100%);
            }
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, var(--text-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 40px;
            position: relative;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--text-color);
            font-weight: 500;
            font-size: 16px;
            transition: color 0.3s;
            position: relative;
            padding: 5px 0;
        }
        
        .nav-links a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            transition: width 0.3s;
        }
        
        .nav-links a:hover {
            color: var(--secondary-color);
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        /* Header Controls */
        .header-controls {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .language-switch {
            display: flex;
            align-items: center;
            margin-left: 15px;
            cursor: pointer;
            background: var(--bg-surface);
            border-radius: 20px;
            padding: 5px 12px;
            transition: var(--theme-transition);
            border: 1px solid var(--border-primary);
            color: var(--text-color);
        }
        
        .language-switch:hover {
            background: var(--bg-elevated);
        }
        
        .language-switch span {
            margin-left: 5px;
            font-weight: 500;
            font-size: 14px;
        }

        .language-switch.loading {
            pointer-events: none;
            opacity: 0.7;
        }

        .language-switch.loading svg {
            animation: i18n-spin 0.8s linear infinite;
        }

        /* Language Slider */
        .language-slider {
            position: relative;
            display: flex;
            align-items: center;
            width: 150px;
            height: 34px;
            background-color: var(--bg-surface);
            border-radius: 17px;
            border: 1px solid var(--border-primary);
            cursor: pointer;
            user-select: none;
            transition: var(--theme-transition);
        }

        .language-slider:hover {
            background-color: var(--bg-elevated);
        }

        .language-slider-track {
            display: flex;
            justify-content: space-around;
            align-items: center;
            width: 100%;
            height: 100%;
            position: relative;
            z-index: 1;
        }

        .language-option {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-muted);
            transition: color 0.3s ease;
            z-index: 2;
            padding: 0 8px;
            text-align: center;
            flex: 1;
        }

        .language-option.active {
            color: var(--text-color);
        }

        [data-theme="light"] .language-option.active {
            color: var(--text-color);
            font-weight: 600; /* Make font slightly bolder */
            text-shadow: 0 0 1px rgba(0, 0, 0, 0.2); /* Add a subtle dark outline */
        }

        .language-slider-thumb {
            position: absolute;
            top: 2px;
            left: 2px;
            width: calc((100% - 8px) / 3);
            height: calc(100% - 4px);
            background-color: rgba(255, 255, 255, 0.05); /* 更高的透明度 */
            backdrop-filter: blur(5px); /* 玻璃效果 */
            border: 1px solid rgba(255, 255, 255, 0.15); /* 边框也更透明一些 */
            border-radius: 15px;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), var(--theme-transition);
            z-index: 1; /* 保持在轨道下方 */
        }

        [data-theme="light"] .language-slider-thumb {
            background-color: rgba(255, 255, 255, 0.6);
            border: 1px solid rgba(0, 0, 0, 0.05);
            backdrop-filter: none; /* Remove blur in light mode */
            box-shadow: none;
        }

        body.i18n-switching [data-i18n] {
            opacity: 0;
            transform: translateY(-2px);
            transition: opacity 200ms cubic-bezier(0.4, 0, 0.2, 1), transform 200ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        body.i18n-fade-in [data-i18n] {
            opacity: 1;
            transform: translateY(0);
            transition: opacity 300ms cubic-bezier(0.4, 0, 0.2, 1), transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
        }

        [data-i18n] {
            transition: opacity 200ms cubic-bezier(0.4, 0, 0.2, 1), transform 200ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        /* Theme Switch Button */
        .theme-switch {
            display: flex;
            align-items: center;
            justify-content: center; /* Center content horizontally */
            width: 95px; /* Fixed width */
            cursor: pointer;
            background: var(--bg-surface);
            border-radius: 20px;
            padding: 0 12px; /* Adjust padding for fixed height */
            height: 34px; /* Match language slider height */
            transition: var(--theme-transition), width 0.3s ease; /* Added width transition */
            border: 1px solid var(--border-primary);
            color: var(--text-color);
            position: relative;
            overflow: hidden;
        }
        
        .theme-switch:hover {
            background: var(--bg-elevated);
            transform: translateY(-1px);
        }
        
        .theme-switch:active {
            transform: translateY(0);
        }
        
        .theme-switch.loading {
            pointer-events: none;
            opacity: 0.7;
        }
        
        .theme-switch .theme-icon {
            width: 16px;
            height: 16px;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
        }
        
        .theme-switch .theme-icon svg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .theme-switch .sun-icon {
            opacity: 0;
            transform: rotate(180deg) scale(0.8);
        }
        
        .theme-switch .moon-icon {
            opacity: 1;
            transform: rotate(0deg) scale(1);
        }
        
        [data-theme="light"] .theme-switch .sun-icon {
            opacity: 1;
            transform: rotate(0deg) scale(1);
        }
        
        [data-theme="light"] .theme-switch .moon-icon {
            opacity: 0;
            transform: rotate(-180deg) scale(0.8);
        }
        
        .theme-switch span {
            margin-left: 8px;
            font-weight: 500;
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        /* Smooth theme transition overlay */
        .theme-transition-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--bg-primary);
            opacity: 0;
            pointer-events: none;
            z-index: 9999;
            transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .theme-transition-overlay.active {
            opacity: 0.1;
        }
        
        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            padding: 150px 0 100px;
        }
        
        .hero-content {
            position: relative;
            z-index: 5;
            max-width: 800px;
        }
        
        .hero-subtitle {
            font-size: 18px;
            text-transform: uppercase;
            letter-spacing: 3px;
            margin-bottom: 15px;
            color: var(--secondary-color);
            font-weight: 600;
            display: flex;
            align-items: center;
        }
        
        .hero-subtitle::before {
            content: "";
            width: 30px;
            height: 2px;
            background: var(--secondary-color);
            margin-right: 15px;
        }
        
        .hero h1 {
            font-size: 4.5rem;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 30px;
            background: linear-gradient(to right, var(--text-color), var(--secondary-color) 70%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .hero h1 span {
            display: block;
            color: var(--secondary-color);
            -webkit-text-fill-color: transparent;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
        }
        
        .hero p {
            font-size: 1.25rem;
            max-width: 600px;
            margin-bottom: 40px;
            opacity: 0.9;
        }
        
        .hero-cta {
            display: inline-block;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 14px 35px;
            border-radius: 4px;
            text-decoration: none;
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: transform 0.3s, box-shadow 0.3s;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .hero-cta::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
            z-index: -1;
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .hero-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0, 102, 255, 0.3);
        }
        
        .hero-cta:hover::before {
            opacity: 1;
        }
        
        .hero-graphic {
            position: absolute;
            right: 5%;
            top: 50%;
            transform: translateY(-50%);
            width: 400px;
            height: 400px;
            z-index: 0;
        }
        
        .hero-sphere {
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color) 0%, transparent 70%);
            opacity: 0.1;
            animation: rotate 20s linear infinite;
        }
        
        .hero-sphere:nth-child(2) {
            background: linear-gradient(225deg, var(--secondary-color) 0%, transparent 70%);
            animation-duration: 25s;
            animation-direction: reverse;
        }
        
        .hero-sphere:nth-child(3) {
            background: linear-gradient(45deg, var(--accent-color) 0%, transparent 70%);
            animation-duration: 30s;
        }
        
        .hero-wireframe {
            position: absolute;
            width: 100%;
            height: 100%;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            box-sizing: border-box;
        }
        
        .hero-wireframe:nth-child(4) {
            animation: rotate 30s linear infinite;
        }
        
        .hero-wireframe:nth-child(5) {
            width: 80%;
            height: 80%;
            top: 10%;
            left: 10%;
            animation: rotate 25s linear infinite reverse;
        }
        
        .hero-wireframe:nth-child(6) {
            width: 60%;
            height: 60%;
            top: 20%;
            left: 20%;
            animation: rotate 20s linear infinite;
        }
        
        @keyframes rotate {
            0% {
                transform: rotate(0deg);
            }
            100% {
                transform: rotate(360deg);
            }
        }
        
        /* Code Animation */
        .code-container {
            position: absolute;
            right: 5%;
            bottom: 10%;
            font-family: "JetBrains Mono", monospace;
            font-size: 12px;
            line-height: 1.5;
            color: rgba(255, 255, 255, 0.7);
            max-width: 380px;
            background: rgba(5, 10, 30, 0.6);
            border-radius: 8px;
            padding: 20px;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            overflow: hidden;
            z-index: 2;
            opacity: 0.6;
            pointer-events: none;
            display: none;
        }
        
        @media (min-width: 1600px) {
            .code-container {
                display: block;
            }
        }
        
        .code-line {
            display: block;
            white-space: nowrap;
            overflow: hidden;
            animation: typing 3s steps(30, end);
        }
        
        .code-keyword {
            color: #ff79c6;
        }
        
        .code-function {
            color: #00f0ff;
        }
        
        .code-string {
            color: #7cff6b;
        }
        
        .code-number {
            color: #bd93f9;
        }
        
        .code-comment {
            color: #6a737d;
        }
        
        @keyframes typing {
            from {
                width: 0;
            }
            to {
                width: 100%;
            }
        }
        
        /* About Section */
        .about {
            padding: 150px 0;
            position: relative;
            background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
            transition: var(--theme-transition);
        }
        
        .about-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(var(--grid-color) 1px, transparent 1px);
            background-size: 30px 30px;
            opacity: 0.3;
            z-index: 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 80px;
            position: relative;
        }
        
        .section-subtitle {
            font-size: 16px;
            text-transform: uppercase;
            letter-spacing: 3px;
            color: var(--secondary-color);
            font-weight: 600;
            margin-bottom: 15px;
            display: inline-block;
        }
        
        .section-title {
            font-size: 3rem;
            font-weight: 700;
            color: var(--text-color);
            margin-bottom: 30px;
            position: relative;
            display: inline-block;
            background: linear-gradient(to right, var(--text-color), var(--secondary-color) 70%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .section-title::after {
            content: "";
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        }
        
        .section-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
            transition: var(--theme-transition);
            height: 2.6rem;
            line-height: 1.3;
            overflow: hidden;
        }
        
        .about-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 70px;
            position: relative;
            z-index: 1;
        }
        
        .about-card {
            background: var(--bg-surface);
            backdrop-filter: var(--backdrop-blur);
            border-radius: 12px;
            padding: 40px;
            transition: transform 0.3s, box-shadow 0.3s, var(--theme-transition);
            border: 1px solid var(--border-primary);
            position: relative;
            overflow: hidden;
            height: 400px;
            display: flex;
            flex-direction: column;
        }
        
        .about-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
        }
        
        .about-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px var(--shadow-color);
            background: var(--bg-elevated);
        }
        
        .about-card-icon {
            width: 70px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 240, 255, 0.1);
            border-radius: 16px;
            margin-bottom: 30px;
            position: relative;
        }
        
        .about-card-icon svg {
            width: 35px;
            height: 35px;
            color: var(--secondary-color);
        }
        
        .about-card-icon::after {
            content: "";
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 16px;
            border: 1px solid rgba(0, 240, 255, 0.3);
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0% {
                transform: scale(1);
                opacity: 1;
            }
            100% {
                transform: scale(1.3);
                opacity: 0;
            }
        }
        
        .about-card h3 {
            font-size: 1.6rem;
            margin-bottom: 20px;
            font-weight: 600;
            color: var(--text-color);
            transition: var(--theme-transition);
        }
        
        .about-card p {
            color: var(--text-muted);
            line-height: 1.7;
            transition: var(--theme-transition);
        }
        
        /* Business Areas Section */
        .business-areas {
            padding: 150px 0;
            position: relative;
            background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-primary));
            overflow: hidden;
            transition: var(--theme-transition);
        }
        
        .business-areas::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 102, 255, 0.1) 0%, rgba(0, 102, 255, 0) 70%);
            z-index: 0;
        }
        
        .business-card {
            background: var(--bg-overlay);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 15px 35px var(--shadow-color);
            transition: transform 0.3s, box-shadow 0.3s, var(--theme-transition);
            height: 575px;
            display: flex;
            flex-direction: column;
            backdrop-filter: var(--backdrop-blur);
            border: 1px solid var(--border-primary);
            position: relative;
        }
        
        .business-card::before {
            content: "";
            position: absolute;
            width: 100%;
            height: 100%;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            opacity: 0;
            transition: opacity 0.3s;
            z-index: -1;
        }
        
        .business-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px var(--shadow-color);
        }
        
        .business-card:hover::before {
            opacity: 0.05;
        }
        
        .business-card-img {
            height: 220px;
            position: relative;
            overflow: hidden;
        }
        
        .business-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .business-card:hover .business-card-img img {
            transform: scale(1.05);
        }
        
        .business-card-content {
            padding: 35px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 1;
        }
        
        .business-card h3 {
            font-size: 1.6rem;
            margin-bottom: 20px;
            font-weight: 600;
            color: var(--text-color);
            position: relative;
            display: inline-block;
            transition: var(--theme-transition);
        }
        
        .business-card h3::after {
            content: "";
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--secondary-color);
        }
        
        .business-card p {
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 25px;
            flex-grow: 1;
            transition: var(--theme-transition);
        }
        
        .business-card-link {
            display: inline-flex;
            align-items: center;
            color: var(--secondary-color);
            font-weight: 600;
            text-decoration: none;
            margin-top: auto;
            transition: color 0.3s;
        }
        
        .business-card-link svg {
            margin-left: 8px;
            transition: transform 0.3s;
        }
        
        .business-card-link:hover {
            color: white;
        }
        
        .business-card-link:hover svg {
            transform: translateX(5px);
        }
        
        /* Research Section */
        .research {
            padding: 150px 0;
            background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
            position: relative;
            overflow: hidden;
            transition: var(--theme-transition);
        }
        
        .research::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 40 40"><rect fill="none" width="40" height="40"/><circle fill="%23ffffff05" cx="20" cy="20" r="1"/></svg>');
            z-index: 0;
        }
        
        .research-content {
            position: relative;
            z-index: 2;
        }
        
        .research-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 70px;
        }
        
        .research-stat {
            background: var(--bg-surface);
            backdrop-filter: var(--backdrop-blur);
            border-radius: 12px;
            padding: 40px;
            text-align: center;
            border: 1px solid var(--border-primary);
            transition: transform 0.3s, box-shadow 0.3s, var(--theme-transition);
            position: relative;
            overflow: hidden;
        }
        
        .research-stat:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px var(--shadow-color);
        }
        
        .research-stat::before {
            content: "";
            position: absolute;
            width: 100px;
            height: 100px;
            background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            filter: blur(80px);
            opacity: 0.1;
            z-index: -1;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            transition: opacity 0.3s;
        }
        
        .research-stat:hover::before {
            opacity: 0.2;
        }
        
        .research-stat h3 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 15px;
            background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            line-height: 1;
        }
        
        .research-stat p {
            font-size: 1.1rem;
            margin: 0;
            color: var(--text-muted);
            transition: var(--theme-transition);
        }
        
        /* Contact Section */
        .contact {
            padding: 150px 0;
            background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
            position: relative;
            overflow: hidden;
            transition: var(--theme-transition);
        }
        
        .contact-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: linear-gradient(var(--grid-color) 1px, transparent 1px),
                             linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
            background-size: 50px 50px;
            opacity: 0.1;
            z-index: 0;
        }
        
        .contact-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            z-index: 1;
        }
        
        .contact-info {
            background: var(--bg-overlay);
            backdrop-filter: var(--backdrop-blur);
            border-radius: 16px;
            padding: 60px;
            margin-top: 70px;
            max-width: 700px;
            width: 100%;
            border: 1px solid var(--border-primary);
            position: relative;
            overflow: hidden;
            transition: var(--theme-transition);
        }
        
        .contact-info::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent 65%, rgba(255, 255, 255, 0.05) 70%, rgba(255, 255, 255, 0.05) 80%, transparent 85%);
            animation: shine 6s infinite;
        }
        
        @keyframes shine {
            0% {
                transform: translate(-30%, -30%) rotate(0deg);
            }
            100% {
                transform: translate(-30%, -30%) rotate(360deg);
            }
        }
        
        .contact-info h3 {
            font-size: 1.8rem;
            margin-bottom: 30px;
            color: var(--text-color);
            transition: var(--theme-transition);
        }
        
        .contact-info p {
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 1.1rem;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            transition: var(--theme-transition);
        }
        
        .contact-detail {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        
        .contact-detail svg {
            margin-right: 15px;
            color: var(--secondary-color);
        }
        
        .contact-detail p {
            margin: 0;
            color: var(--text-color);
            transition: var(--theme-transition);
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 40px;
            justify-content: center;
        }
        
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            background: var(--bg-surface);
            border-radius: 50%;
            color: var(--text-color);
            transition: all 0.3s, var(--theme-transition);
            position: relative;
            overflow: hidden;
            z-index: 1;
            border: 1px solid var(--border-primary);
        }
        
        .social-links a::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
            opacity: 0;
            transition: opacity 0.3s;
            z-index: -1;
        }
        
        .social-links a:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px var(--shadow-color);
        }
        
        .social-links a:hover::before {
            opacity: 1;
        }
        
        /* Footer */
        footer {
            background-color: var(--bg-secondary);
            padding: 80px 0 30px;
            position: relative;
            overflow: hidden;
            transition: var(--theme-transition);
        }
        
        .footer-pattern {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 50%;
            background: linear-gradient(to top, rgba(0, 70, 255, 0.05), transparent);
            z-index: 0;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 50px;
            margin-bottom: 60px;
            position: relative;
            z-index: 1;
        }
        
        .footer-logo {
            display: flex;
            align-items: center;
            margin-bottom: 25px;
        }
        
        .footer-logo .logo-icon {
            width: 35px;
            height: 35px;
            font-size: 16px;
        }
        
        .footer-about p {
            color: var(--text-subtle);
            font-size: 1rem;
            margin-bottom: 30px;
            line-height: 1.7;
            transition: var(--theme-transition);
        }
        
        .footer-links h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 25px;
            color: var(--text-color);
            position: relative;
            display: inline-block;
            transition: var(--theme-transition);
        }
        
        .footer-links h3::after {
            content: "";
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--secondary-color);
        }
        
        .footer-links ul {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: var(--text-subtle);
            text-decoration: none;
            font-size: 1rem;
            transition: all 0.3s, var(--theme-transition);
            position: relative;
            padding-left: 15px;
        }
        
        .footer-links a::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--secondary-color);
            transition: transform 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--text-color);
            padding-left: 20px;
        }
        
        .footer-links a:hover::before {
            transform: translateY(-50%) scale(1.5);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid var(--border-primary);
            color: var(--text-disabled);
            font-size: 0.9rem;
            position: relative;
            z-index: 1;
            transition: var(--theme-transition);
        }
        
        /* Terminal Animation */
        .terminal {
            position: absolute;
            right: 5%;
            top: 15%;
            width: 350px;
            height: 180px;
            background: rgba(10, 15, 35, 0.5);
            backdrop-filter: blur(10px);
            border-radius: 8px;
            padding: 15px;
            overflow: hidden;
            font-family: "JetBrains Mono", monospace;
            font-size: 11px;
            line-height: 1.5;
            color: rgba(255, 255, 255, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            z-index: 1;
            opacity: 0.6;
            pointer-events: none;
            display: none;
            flex-direction: column;
        }
        
        @media (min-width: 1600px) {
            .terminal {
                display: flex;
            }
        }
        
        .terminal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .terminal-title {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.6);
        }
        
        .terminal-buttons {
            display: flex;
            gap: 5px;
        }
        
        .terminal-button {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }
        
        .terminal-button-red {
            background-color: #ff5f56;
        }
        
        .terminal-button-yellow {
            background-color: #ffbd2e;
        }
        
        .terminal-button-green {
            background-color: #27c93f;
        }
        
        .terminal-content {
            flex-grow: 1;
            overflow-y: auto;
        }
        
        .terminal-line {
            display: flex;
            margin-bottom: 5px;
        }
        
        .terminal-prompt {
            color: var(--secondary-color);
            margin-right: 10px;
        }
        
        .terminal-cursor {
            display: inline-block;
            width: 8px;
            height: 15px;
            background: var(--secondary-color);
            animation: blink 1s infinite;
            vertical-align: middle;
        }
        
        @keyframes blink {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0;
            }
        }
        
        /* Data Visualization Animation */
        .data-viz {
            position: absolute;
            bottom: 15%;
            right: 5%;
            width: 280px;
            height: 180px;
            background: rgba(5, 10, 30, 0.5);
            backdrop-filter: blur(10px);
            border-radius: 12px;
            padding: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            overflow: hidden;
            z-index: 2;
            opacity: 0.8;
            pointer-events: none;
            display: none;
        }
        
        @media (min-width: 1600px) {
            .data-viz {
                display: block;
            }
        }
        
        .chart-bars {
            display: flex;
            align-items: flex-end;
            height: 140px;
            gap: 8px;
            margin-top: 20px;
        }
        
        .chart-bar {
            flex-grow: 1;
            background: linear-gradient(to top, var(--primary-color), var(--secondary-color));
            border-radius: 3px 3px 0 0;
            animation: barAnimation 3s infinite;
        }
        
        @keyframes barAnimation {
            0%, 100% {
                height: var(--initialHeight);
            }
            50% {
                height: calc(var(--initialHeight) * 1.5);
            }
        }
        
        .data-viz-title {
            color: var(--text-color);
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--theme-transition);
        }
        
        .data-viz-label {
            color: var(--text-subtle);
            font-size: 10px;
            transition: var(--theme-transition);
        }
        
        /* Responsiveness */
        @media (max-width: 1600px) {
            .code-container,
            .terminal,
            .data-viz {
                display: none !important;
            }
            
            .hero h1 {
                font-size: 3.5rem;
            }
            
            .hero-graphic {
                opacity: 0.3;
            }
        }
        
        @media (max-width: 992px) {
            .footer-content {
                grid-template-columns: 1fr 1fr;
            }
            
            .research-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .hero h1 {
                font-size: 3rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .header-controls {
                gap: 5px;
            }
            
            .theme-switch, .language-switch {
                padding: 4px 8px;
                margin-left: 8px;
            }
            
            .theme-switch span, .language-switch span {
                font-size: 11px;
            }
            
            .about-grid,
            .research-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .section-title {
                font-size: 2.5rem;
            }
            
            .contact-info {
                padding: 30px;
            }
        }