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

        :root {
            --primary-color: #F97316;
            --primary-light: #FED7AA;
            --primary-dark: #EA580C;
            --secondary-color: #3B82F6;
            --accent-color: #10B981;
            --text-primary: #1F2937;
            --text-secondary: #6B7280;
            --text-light: #9CA3AF;
            --bg-primary: #FFFFFF;
            --bg-secondary: #F9FAFB;
            --bg-accent: #FEF3E2;
            --border-color: #E5E7EB;
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background: var(--bg-primary);
            overflow-x: hidden;
        }

        .tdzm-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .tdzm-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: all 0.3s ease;
        }

        .tdzm-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
        }

        .tdzm-logo {
            display: flex;
            align-items: center;
        }

        .tdzm-logo img {
            height: 40px;
            width: auto;
        }

        .tdzm-nav-menu {
            display: flex;
            list-style: none;
            gap: 32px;
        }

        .tdzm-nav-link {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 500;
            font-size: clamp(0.9rem, 1.5vw, 1rem);
            transition: color 0.3s ease;
            position: relative;
        }

        .tdzm-nav-link:hover {
            color: var(--primary-color);
        }

        .tdzm-nav-link.active {
            color: var(--primary-color);
        }

        .tdzm-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--primary-color);
            border-radius: 1px;
        }

        .tdzm-mobile-toggle {
            display: none;
            flex-direction: column;
            cursor: pointer;
            padding: 8px;
        }

        .tdzm-mobile-toggle span {
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            margin: 2px 0;
            transition: 0.3s;
        }

        /* Hero区域 */
        .tdzm-hero {
            padding: 120px 0 80px;
            background: linear-gradient(135deg, var(--bg-accent) 0%, var(--bg-secondary) 100%);
            position: relative;
            overflow: hidden;
        }

        .tdzm-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 80%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
            transform: rotate(-15deg);
        }

        .tdzm-hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .tdzm-hero-text h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .tdzm-hero-text p {
            font-size: clamp(1.1rem, 2vw, 1.3rem);
            color: var(--text-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .tdzm-hero-cta {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .tdzm-btn {
            padding: 16px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
            cursor: pointer;
        }

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

        .tdzm-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .tdzm-btn-secondary {
            background: var(--bg-primary);
            color: var(--primary-color);
            border: 2px solid var(--primary-color);
        }

        .tdzm-btn-secondary:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }

        .tdzm-hero-image {
            position: relative;
        }

        .tdzm-hero-image img {
            width: 100%;
            height: auto;
            border-radius: 20px;
            box-shadow: var(--shadow-xl);
            transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
            transition: transform 0.3s ease;
        }

        .tdzm-hero-image:hover img {
            transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
        }

        /* 学习路径区域 */
        .tdzm-learning-path {
            padding: 96px 0;
            background: var(--bg-primary);
        }

        .tdzm-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .tdzm-section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .tdzm-section-subtitle {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .tdzm-path-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .tdzm-path-card {
            background: var(--bg-primary);
            border-radius: 20px;
            padding: 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

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

        .tdzm-path-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-xl);
        }

        .tdzm-path-icon {
            font-size: 3rem;
            margin-bottom: 16px;
            display: block;
        }

        .tdzm-path-card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .tdzm-path-card p {
            color: var(--text-secondary);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .tdzm-path-features {
            list-style: none;
            margin-bottom: 24px;
        }

        .tdzm-path-features li {
            padding: 8px 0;
            color: var(--text-secondary);
            position: relative;
            padding-left: 24px;
        }

        .tdzm-path-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-color);
            font-weight: bold;
        }

        .tdzm-path-link {
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: gap 0.3s ease;
        }

        .tdzm-path-link:hover {
            gap: 12px;
        }

        /* 教程展示区域 */
        .tdzm-tutorials {
            padding: 96px 0;
            background: var(--bg-secondary);
        }

        .tdzm-tutorial-showcase {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
            margin-bottom: 80px;
        }

        .tdzm-tutorial-showcase:nth-child(even) {
            direction: rtl;
        }

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

        .tdzm-tutorial-content h3 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .tdzm-tutorial-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }

        .tdzm-tutorial-benefits {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-bottom: 32px;
        }

        .tdzm-benefit-item {
            background: var(--bg-primary);
            padding: 16px;
            border-radius: 12px;
            border-left: 4px solid var(--primary-color);
        }

        .tdzm-benefit-item strong {
            color: var(--primary-color);
            display: block;
            margin-bottom: 4px;
        }

        .tdzm-tutorial-image {
            position: relative;
        }

        .tdzm-tutorial-image img {
            width: 100%;
            height: auto;
            border-radius: 16px;
            box-shadow: var(--shadow-lg);
        }

        /* 互动学习区域 */
        .tdzm-interactive {
            padding: 96px 0;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
            color: white;
            position: relative;
            overflow: hidden;
        }

        .tdzm-interactive::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 80%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            transform: rotate(15deg);
        }

        .tdzm-interactive-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .tdzm-interactive h2 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 700;
            margin-bottom: 24px;
        }

        .tdzm-interactive p {
            font-size: clamp(1rem, 2vw, 1.2rem);
            margin-bottom: 48px;
            opacity: 0.9;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .tdzm-interactive-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 32px;
            margin-bottom: 48px;
        }

        .tdzm-interactive-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border-radius: 16px;
            padding: 32px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: transform 0.3s ease;
        }

        .tdzm-interactive-card:hover {
            transform: translateY(-8px);
        }

        .tdzm-interactive-card .tdzm-path-icon {
            margin-bottom: 20px;
        }

        .tdzm-interactive-card h4 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .tdzm-interactive-card p {
            font-size: 0.95rem;
            opacity: 0.8;
            margin-bottom: 0;
        }

        /* 用户成果展示 */
        .tdzm-achievements {
            padding: 96px 0;
            background: var(--bg-primary);
        }

        .tdzm-achievement-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 32px;
        }

        .tdzm-achievement-card {
            background: var(--bg-primary);
            border-radius: 16px;
            padding: 32px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-color);
            text-align: center;
            transition: all 0.3s ease;
        }

        .tdzm-achievement-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .tdzm-achievement-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            margin: 0 auto 20px;
            overflow: hidden;
            border: 4px solid var(--primary-light);
        }

        .tdzm-achievement-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .tdzm-achievement-card h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .tdzm-achievement-role {
            color: var(--text-light);
            font-size: 0.9rem;
            margin-bottom: 16px;
        }

        .tdzm-achievement-quote {
            font-style: italic;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .tdzm-achievement-stats {
            display: flex;
            justify-content: space-around;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
        }

        .tdzm-stat {
            text-align: center;
        }

        .tdzm-stat-number {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            display: block;
        }

        .tdzm-stat-label {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* 页脚 */
        .tdzm-footer {
            background: var(--text-primary);
            color: white;
            padding: 64px 0 32px;
        }

        .tdzm-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 48px;
            margin-bottom: 48px;
        }

        .tdzm-footer-section h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--primary-light);
        }

        .tdzm-footer-links {
            list-style: none;
        }

        .tdzm-footer-links li {
            margin-bottom: 12px;
        }

        .tdzm-footer-links a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        .tdzm-footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 32px;
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
        }

        /* 响应式设计 */
        @media (max-width: 1024px) {
            .tdzm-container {
                padding: 0 20px;
            }

            .tdzm-hero-content {
                grid-template-columns: 1fr;
                gap: 48px;
                text-align: center;
            }

            .tdzm-tutorial-showcase {
                grid-template-columns: 1fr;
                gap: 48px;
            }

            .tdzm-tutorial-showcase:nth-child(even) {
                direction: ltr;
            }
        }

        @media (max-width: 768px) {
            .tdzm-nav-menu {
                display: none;
            }

            .tdzm-mobile-toggle {
                display: flex;
            }

            .tdzm-hero {
                padding: 100px 0 60px;
            }

            .tdzm-hero-cta {
                justify-content: center;
            }

            .tdzm-btn {
                padding: 14px 24px;
                font-size: 1rem;
            }

            .tdzm-path-grid {
                grid-template-columns: 1fr;
            }

            .tdzm-interactive-features {
                grid-template-columns: 1fr;
            }

            .tdzm-achievement-grid {
                grid-template-columns: 1fr;
            }

            .tdzm-footer-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 480px) {
            .tdzm-container {
                padding: 0 16px;
            }

            .tdzm-hero {
                padding: 80px 0 40px;
            }

            .tdzm-path-card,
            .tdzm-achievement-card,
            .tdzm-interactive-card {
                padding: 24px;
            }

            .tdzm-tutorial-benefits {
                grid-template-columns: 1fr;
            }
        }

        /* 滚动动画 */
        .tdzm-fade-in {
            opacity: 1;
            transform: translateY(0);
            transition: all 0.6s ease;
        }

        .tdzm-slide-in-left {
            transform: translateX(0);
            opacity: 1;
            transition: all 0.6s ease;
        }

        .tdzm-slide-in-right {
            transform: translateX(0);
            opacity: 1;
            transition: all 0.6s ease;
        }

        /* 加载状态 */
        .tdzm-loading {
            opacity: 0.7;
            pointer-events: none;
        }

        /* 焦点状态 */
        .tdzm-btn:focus,
        .tdzm-nav-link:focus {
            outline: 2px solid var(--primary-color);
            outline-offset: 2px;
        }

        /* 高对比度模式支持 */
        @media (prefers-contrast: high) {
            :root {
                --text-primary: #000000;
                --text-secondary: #333333;
                --border-color: #666666;
            }
        }

        /* 减少动画模式支持 */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }