:root {
            --primary: #9D4EDD;
            --primary-dark: #7B2CBF;
            --primary-light: #C77DFF;
            --secondary: #1A1F3A;
            --secondary-light: #2D3561;
            --accent: #00D9FF;
            --accent-warm: #FF6B6B;
            --bg-dark: #0F1419;
            --bg-card: #1A1F3A;
            --text-primary: #FFFFFF;
            --text-secondary: #A0A8D8;
            --text-tertiary: #7A82B0;
            --border-color: #2D3561;
            --success: #10B981;
            --warning: #F59E0B;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 24px rgba(157, 78, 221, 0.15);
            --shadow-lg: 0 16px 48px rgba(157, 78, 221, 0.2);
            --transition-fast: 0.2s ease-out;
            --transition-base: 0.3s ease-out;
            --transition-slow: 0.5s ease-out;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1A1F3A 100%);
            color: var(--text-primary);
            line-height: 1.6;
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* ==================== 导航栏 ==================== */
        .dgca-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 20, 25, 0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem 2rem;
            transition: all var(--transition-base);
        }

        .dgca-navbar.scrolled {
            background: rgba(15, 20, 25, 0.95);
            box-shadow: var(--shadow-md);
            padding: 0.75rem 2rem;
        }

        .dgca-navbar-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .dgca-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            font-size: clamp(1.25rem, 2vw, 1.5rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-logo img {
            width: 40px;
            height: 40px;
            object-fit: contain;
        }

        .dgca-nav-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
            align-items: center;
        }

        .dgca-nav-item a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            transition: color var(--transition-fast);
        }

        .dgca-nav-item a:hover,
        .dgca-nav-item a.active {
            color: var(--primary-light);
        }

        .dgca-nav-item a.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
            border-radius: 2px;
        }

        .dgca-nav-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }

        .dgca-nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .dgca-hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            background: none;
            border: none;
        }

        .dgca-hamburger span {
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        /* ==================== Hero区 ==================== */
        .dgca-hero {
            margin-top: 80px;
            padding: 4rem 2rem;
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.1) 0%, rgba(0, 217, 255, 0.05) 100%);
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
            position: relative;
        }

        .dgca-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(157, 78, 221, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .dgca-hero-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .dgca-hero-content h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-hero-content p {
            font-size: clamp(0.95rem, 2vw, 1.1rem);
            color: var(--text-secondary);
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .dgca-hero-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-bottom: 2rem;
        }

        .dgca-btn-primary,
        .dgca-btn-secondary {
            padding: 1rem 2rem;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            text-decoration: none;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
            display: inline-block;
            text-align: center;
        }

        .dgca-btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            box-shadow: var(--shadow-md);
        }

        .dgca-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .dgca-btn-secondary {
            background: transparent;
            color: var(--accent);
            border: 2px solid var(--accent);
        }

        .dgca-btn-secondary:hover {
            background: rgba(0, 217, 255, 0.1);
            transform: translateY(-3px);
        }

        .dgca-hero-image {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .dgca-hero-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* ==================== 学习路径 ==================== */
        .dgca-learning-path {
            padding: 6rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .dgca-section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .dgca-section-header h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-section-header p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .dgca-path-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 4rem;
        }

        .dgca-path-card {
            background: linear-gradient(135deg, var(--bg-card) 0%, rgba(45, 53, 97, 0.5) 100%);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .dgca-path-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-light), var(--accent));
        }

        .dgca-path-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary-light);
            box-shadow: var(--shadow-lg);
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.1) 0%, rgba(45, 53, 97, 0.7) 100%);
        }

        .dgca-path-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            border-radius: 12px;
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
        }

        .dgca-path-card h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .dgca-path-card p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            flex-grow: 1;
        }

        .dgca-path-topics {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .dgca-path-topic {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-tertiary);
            font-size: 0.9rem;
        }

        .dgca-path-topic::before {
            content: '▶';
            color: var(--accent);
            font-size: 0.75rem;
        }

        /* ==================== 详细教程 ==================== */
        .dgca-detailed-tutorials {
            padding: 6rem 2rem;
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.05) 0%, transparent 100%);
            border-top: 1px solid var(--border-color);
        }

        .dgca-detailed-tutorials .dgca-section-header {
            margin-bottom: 4rem;
        }

        .dgca-tutorials-grid {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
        }

        .dgca-tutorial-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .dgca-tutorial-block:nth-child(even) {
            direction: rtl;
        }

        .dgca-tutorial-block:nth-child(even) > * {
            direction: ltr;
        }

        .dgca-tutorial-image {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .dgca-tutorial-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: transform var(--transition-base);
        }

        .dgca-tutorial-block:hover .dgca-tutorial-image img {
            transform: scale(1.05);
        }

        .dgca-tutorial-content h3 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .dgca-tutorial-content p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }

        .dgca-tutorial-steps {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .dgca-step {
            display: flex;
            gap: 1.5rem;
            padding: 1.25rem;
            background: rgba(157, 78, 221, 0.08);
            border-left: 3px solid var(--primary-light);
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

        .dgca-step:hover {
            background: rgba(157, 78, 221, 0.15);
            padding-left: 1.75rem;
        }

        .dgca-step-number {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
            color: var(--bg-dark);
            border-radius: 50%;
            font-weight: 800;
            flex-shrink: 0;
        }

        .dgca-step-content h4 {
            font-size: 1rem;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }

        .dgca-step-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ==================== 配置示例 ==================== */
        .dgca-config-section {
            padding: 6rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .dgca-config-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            align-items: center;
        }

        .dgca-config-image {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .dgca-config-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        .dgca-config-content h3 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }

        .dgca-config-features {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .dgca-config-feature {
            display: flex;
            gap: 1rem;
            padding: 1rem;
            background: rgba(0, 217, 255, 0.08);
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

        .dgca-config-feature:hover {
            background: rgba(0, 217, 255, 0.15);
            transform: translateX(8px);
        }

        .dgca-feature-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent) 0%, var(--primary-light) 100%);
            color: var(--bg-dark);
            border-radius: 8px;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .dgca-feature-text h4 {
            font-size: 1rem;
            margin-bottom: 0.25rem;
            color: var(--text-primary);
        }

        .dgca-feature-text p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ==================== 常见问题 ==================== */
        .dgca-faq-section {
            padding: 6rem 2rem;
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.05) 0%, transparent 100%);
            border-top: 1px solid var(--border-color);
        }

        .dgca-faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .dgca-faq-section .dgca-section-header {
            margin-bottom: 4rem;
        }

        .dgca-faq-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .dgca-faq-item {
            background: linear-gradient(135deg, var(--bg-card) 0%, rgba(45, 53, 97, 0.5) 100%);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .dgca-faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-md);
        }

        .dgca-faq-question {
            padding: 1.75rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .dgca-faq-item.active .dgca-faq-question {
            background: rgba(157, 78, 221, 0.1);
        }

        .dgca-faq-question h4 {
            font-size: 1.05rem;
            color: var(--text-primary);
            margin: 0;
            flex-grow: 1;
        }

        .dgca-faq-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: rgba(157, 78, 221, 0.2);
            color: var(--primary-light);
            border-radius: 8px;
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
        }

        .dgca-faq-item.active .dgca-faq-toggle {
            background: var(--primary);
            color: white;
            transform: rotate(180deg);
        }

        .dgca-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
        }

        .dgca-faq-item.active .dgca-faq-answer {
            max-height: 500px;
        }

        .dgca-faq-answer-content {
            padding: 0 1.75rem 1.75rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ==================== 快速导航 ==================== */
        .dgca-quick-nav {
            padding: 6rem 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .dgca-nav-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
        }

        .dgca-nav-item-card {
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.1) 0%, rgba(0, 217, 255, 0.05) 100%);
            border: 2px solid var(--border-color);
            border-radius: 12px;
            padding: 2rem;
            text-align: center;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            display: block;
            color: inherit;
        }

        .dgca-nav-item-card:hover {
            border-color: var(--primary-light);
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.2) 0%, rgba(0, 217, 255, 0.1) 100%);
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .dgca-nav-item-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            display: block;
        }

        .dgca-nav-item-card h4 {
            font-size: 1.2rem;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }

        .dgca-nav-item-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* ==================== 底部 ==================== */
        .dgca-footer {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-dark) 100%);
            border-top: 1px solid var(--border-color);
            padding: 4rem 2rem 2rem;
            margin-top: 6rem;
        }

        .dgca-footer-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .dgca-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .dgca-footer-section h4 {
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
        }

        .dgca-footer-section ul {
            list-style: none;
        }

        .dgca-footer-section ul li {
            margin-bottom: 0.75rem;
        }

        .dgca-footer-section ul li a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
            font-size: 0.95rem;
        }

        .dgca-footer-section ul li a:hover {
            color: var(--primary-light);
        }

        .dgca-footer-brand {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .dgca-brand-name {
            font-size: 1.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-brand-tagline {
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .dgca-footer-divider {
            height: 1px;
            background: var(--border-color);
            margin: 2rem 0;
        }

        .dgca-footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 2rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
        }

        .dgca-footer-copyright {
            color: var(--text-tertiary);
            font-size: 0.9rem;
        }

        .dgca-footer-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .dgca-footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color var(--transition-fast);
        }

        .dgca-footer-links a:hover {
            color: var(--primary-light);
        }

        /* ==================== 响应式 ==================== */
        @media (max-width: 1024px) {
            .dgca-hero-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .dgca-tutorial-block {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .dgca-tutorial-block:nth-child(even) {
                direction: ltr;
            }

            .dgca-config-container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .dgca-nav-menu {
                gap: 1rem;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 768px) {
            .dgca-navbar-container {
                padding: 0;
            }

            .dgca-nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                gap: 0;
                background: var(--secondary);
                border-bottom: 1px solid var(--border-color);
            }

            .dgca-nav-menu.active {
                display: flex;
            }

            .dgca-nav-item {
                padding: 1rem;
                border-bottom: 1px solid var(--border-color);
            }

            .dgca-nav-item a {
                display: block;
            }

            .dgca-hamburger {
                display: flex;
            }

            .dgca-hero {
                padding: 2rem;
                margin-top: 60px;
            }

            .dgca-hero-buttons {
                flex-direction: column;
            }

            .dgca-btn-primary,
            .dgca-btn-secondary {
                width: 100%;
            }

            .dgca-learning-path {
                padding: 3rem 1rem;
            }

            .dgca-path-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .dgca-detailed-tutorials {
                padding: 3rem 1rem;
            }

            .dgca-config-section {
                padding: 3rem 1rem;
            }

            .dgca-faq-section {
                padding: 3rem 1rem;
            }

            .dgca-faq-container {
                max-width: 100%;
            }

            .dgca-quick-nav {
                padding: 3rem 1rem;
            }

            .dgca-nav-grid {
                grid-template-columns: 1fr;
            }

            .dgca-footer-bottom {
                flex-direction: column-reverse;
            }

            .dgca-footer-links {
                flex-direction: column;
                gap: 0.5rem;
            }

            .dgca-section-header h2 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 480px) {
            .dgca-navbar {
                padding: 0.75rem 1rem;
            }

            .dgca-logo {
                font-size: 1.1rem;
            }

            .dgca-logo img {
                width: 32px;
                height: 32px;
            }

            .dgca-hero {
                padding: 1.5rem;
                margin-top: 60px;
            }

            .dgca-hero-content h1 {
                font-size: 1.75rem;
            }

            .dgca-hero-content p {
                font-size: 0.9rem;
            }

            .dgca-path-card {
                padding: 1.5rem;
            }

            .dgca-tutorial-content h3 {
                font-size: 1.25rem;
            }

            .dgca-step {
                gap: 1rem;
                padding: 1rem;
            }

            .dgca-section-header h2 {
                font-size: 1.5rem;
            }

            .dgca-faq-question {
                padding: 1.25rem;
            }

            .dgca-footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }