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

        :root {
            --primary: #9D4EDD;
            --primary-light: #B565F5;
            --primary-dark: #7C2FA1;
            --secondary: #00B4D8;
            --secondary-light: #48D1FF;
            --accent: #FF006E;
            --accent-light: #FF4D9E;
            --success: #06D6A0;
            --warning: #FFB703;
            --danger: #D62828;
            --bg-dark: #0A0E27;
            --bg-medium: #1A1F3A;
            --bg-light: #2D3561;
            --text-primary: #FFFFFF;
            --text-secondary: #A0A8D8;
            --text-tertiary: #7A81B4;
            --border: #3A4268;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.35);
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #0F1436 50%, #1A1F3A 100%);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* ============ 导航栏 ============ */
        .dgca-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 39, 0.8);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            padding: 0 clamp(1rem, 5vw, 3rem);
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
            transition: all 0.3s ease;
        }

        .dgca-navbar.dgca-scrolled {
            background: rgba(10, 14, 39, 0.95);
            box-shadow: var(--shadow-md);
        }

        .dgca-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .dgca-nav-items {
            display: flex;
            gap: clamp(0.5rem, 3vw, 2rem);
            align-items: center;
            flex: 1;
            margin-left: clamp(1rem, 5vw, 3rem);
        }

        .dgca-nav-item {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: clamp(0.875rem, 2vw, 1rem);
            font-weight: 500;
            position: relative;
            transition: color 0.3s ease;
            cursor: pointer;
        }

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

        .dgca-nav-item::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .dgca-nav-item:hover::after,
        .dgca-nav-item.dgca-active::after {
            opacity: 1;
        }

        .dgca-cta-button {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            padding: 10px 24px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: clamp(0.875rem, 2vw, 1rem);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(157, 78, 221, 0.3);
            white-space: nowrap;
        }

        .dgca-cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(157, 78, 221, 0.4);
        }

        .dgca-menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--primary);
            font-size: 24px;
            cursor: pointer;
            margin-left: auto;
        }

        /* ============ Hero区域 ============ */
        .dgca-hero {
            margin-top: 70px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: clamp(2rem, 10vw, 4rem);
            position: relative;
            overflow: hidden;
        }

        .dgca-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 50%, rgba(157, 78, 221, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(0, 180, 216, 0.1) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

        .dgca-hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(2rem, 8vw, 4rem);
            align-items: center;
            max-width: 1400px;
            width: 100%;
            position: relative;
            z-index: 1;
        }

        .dgca-hero-text {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .dgca-hero-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            width: fit-content;
            padding: 12px 20px;
            background: rgba(157, 78, 221, 0.1);
            border: 1px solid var(--primary);
            border-radius: 30px;
            font-size: clamp(0.75rem, 2vw, 0.95rem);
            color: var(--primary);
            font-weight: 600;
        }

        .dgca-hero-title {
            font-size: clamp(2rem, 6vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--secondary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-hero-subtitle {
            font-size: clamp(1rem, 2.5vw, 1.25rem);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .dgca-hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
            margin-top: 12px;
        }

        .dgca-btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: white;
            padding: clamp(0.875rem, 2vw, 1.125rem) clamp(1.5rem, 4vw, 2.5rem);
            border-radius: 10px;
            text-decoration: none;
            font-weight: 700;
            font-size: clamp(0.95rem, 2vw, 1.1rem);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 8px 24px rgba(157, 78, 221, 0.3);
            display: inline-block;
        }

        .dgca-btn-primary:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(157, 78, 221, 0.4);
        }

        .dgca-btn-secondary {
            background: transparent;
            color: var(--primary);
            padding: clamp(0.875rem, 2vw, 1.125rem) clamp(1.5rem, 4vw, 2.5rem);
            border: 2px solid var(--primary);
            border-radius: 10px;
            text-decoration: none;
            font-weight: 700;
            font-size: clamp(0.95rem, 2vw, 1.1rem);
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .dgca-btn-secondary:hover {
            background: rgba(157, 78, 221, 0.1);
            transform: translateY(-4px);
        }

        .dgca-hero-image {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .dgca-hero-image-wrapper {
            position: relative;
            width: 100%;
            aspect-ratio: 1;
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border);
            background: rgba(45, 53, 97, 0.5);
            box-shadow: 0 20px 60px rgba(157, 78, 221, 0.2);
        }

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

        .dgca-hero-glow {
            position: absolute;
            bottom: -30%;
            left: -20%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(157, 78, 221, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .dgca-hero-stat {
            display: flex;
            gap: 32px;
            margin-top: 16px;
            flex-wrap: wrap;
        }

        .dgca-stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .dgca-stat-number {
            font-size: clamp(1.5rem, 4vw, 2.25rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--secondary-light), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-stat-label {
            font-size: clamp(0.875rem, 2vw, 1rem);
            color: var(--text-secondary);
        }

        /* ============ 特性区域 ============ */
        .dgca-features {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(180deg, transparent, rgba(157, 78, 221, 0.05));
            position: relative;
        }

        .dgca-features::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: min(1000px, 90%);
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
        }

        .dgca-section-title {
            text-align: center;
            margin-bottom: clamp(2rem, 6vw, 4rem);
            display: flex;
            flex-direction: column;
            gap: 16px;
            align-items: center;
        }

        .dgca-section-label {
            display: inline-block;
            padding: 8px 16px;
            background: rgba(157, 78, 221, 0.1);
            border: 1px solid var(--primary);
            border-radius: 20px;
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .dgca-section-heading {
            font-size: clamp(1.75rem, 5vw, 2.75rem);
            font-weight: 800;
            max-width: 600px;
            background: linear-gradient(135deg, var(--text-primary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: clamp(1.5rem, 4vw, 2.5rem);
            max-width: 1400px;
            margin: 0 auto;
        }

        .dgca-feature-card {
            padding: clamp(1.5rem, 4vw, 2.5rem);
            background: rgba(45, 53, 97, 0.5);
            border: 1px solid var(--border);
            border-radius: 16px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .dgca-feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.1) 0%, transparent 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }

        .dgca-feature-card:hover {
            background: rgba(45, 53, 97, 0.8);
            border-color: var(--primary);
            transform: translateY(-8px);
            box-shadow: 0 16px 40px rgba(157, 78, 221, 0.2);
        }

        .dgca-feature-card:hover::before {
            opacity: 1;
        }

        .dgca-feature-icon {
            font-size: clamp(2rem, 5vw, 3rem);
            margin-bottom: 16px;
            display: block;
        }

        .dgca-feature-title {
            font-size: clamp(1.1rem, 2.5vw, 1.35rem);
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .dgca-feature-desc {
            font-size: clamp(0.9rem, 2vw, 1rem);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ============ 产品矩阵 ============ */
        .dgca-products {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(180deg, rgba(0, 180, 216, 0.05) 0%, transparent 100%);
        }

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

        .dgca-product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: clamp(2rem, 6vw, 3rem);
            margin-top: clamp(2rem, 6vw, 4rem);
        }

        .dgca-product-card {
            background: rgba(26, 31, 58, 0.8);
            border: 2px solid var(--border);
            border-radius: 20px;
            padding: clamp(2rem, 5vw, 3rem);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .dgca-product-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .dgca-product-card:hover {
            border-color: var(--primary);
            transform: translateY(-12px);
            box-shadow: 0 20px 50px rgba(157, 78, 221, 0.2);
        }

        .dgca-product-card:hover::before {
            opacity: 1;
        }

        .dgca-product-badge {
            display: inline-block;
            padding: 8px 12px;
            background: rgba(157, 78, 221, 0.15);
            color: var(--primary);
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 16px;
            width: fit-content;
        }

        .dgca-product-title {
            font-size: clamp(1.35rem, 3vw, 1.65rem);
            font-weight: 800;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .dgca-product-subtitle {
            font-size: clamp(0.9rem, 2vw, 1rem);
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .dgca-product-features {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 24px;
            flex: 1;
        }

        .dgca-product-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: clamp(0.9rem, 2vw, 1rem);
            color: var(--text-secondary);
        }

        .dgca-product-feature::before {
            content: '✓';
            color: var(--success);
            font-weight: 800;
            font-size: 1.2em;
            flex-shrink: 0;
        }

        .dgca-product-stats {
            padding-top: 16px;
            border-top: 1px solid var(--border);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .dgca-product-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .dgca-product-stat-value {
            font-size: clamp(0.95rem, 2vw, 1.1rem);
            font-weight: 700;
            color: var(--secondary-light);
        }

        .dgca-product-stat-label {
            font-size: clamp(0.75rem, 1.5vw, 0.85rem);
            color: var(--text-tertiary);
        }

        /* ============ 解决方案 & 案例 ============ */
        .dgca-solutions {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(180deg, transparent, rgba(157, 78, 221, 0.03));
        }

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

        .dgca-case-grid {
            display: grid;
            gap: clamp(2rem, 6vw, 3rem);
            margin-top: clamp(2rem, 6vw, 4rem);
        }

        .dgca-case-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(2rem, 6vw, 4rem);
            align-items: center;
            padding: clamp(2rem, 5vw, 3rem);
            background: rgba(45, 53, 97, 0.3);
            border: 1px solid var(--border);
            border-radius: 16px;
            transition: all 0.3s ease;
        }

        .dgca-case-item:hover {
            background: rgba(45, 53, 97, 0.5);
            border-color: var(--primary);
        }

        .dgca-case-item:nth-child(even) {
            grid-template-columns: 1fr 1fr;
        }

        .dgca-case-item:nth-child(even) .dgca-case-image {
            order: -1;
        }

        .dgca-case-title {
            font-size: clamp(1.35rem, 3vw, 1.65rem);
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-primary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-case-challenge {
            margin-bottom: 20px;
        }

        .dgca-case-label {
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: block;
        }

        .dgca-case-text {
            font-size: clamp(0.95rem, 2vw, 1.05rem);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .dgca-case-results {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .dgca-result-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .dgca-result-value {
            font-size: clamp(1.1rem, 2.5vw, 1.4rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--success), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-result-label {
            font-size: clamp(0.8rem, 1.5vw, 0.9rem);
            color: var(--text-tertiary);
        }

        .dgca-case-image {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border);
            aspect-ratio: 16 / 10;
            background: rgba(45, 53, 97, 0.5);
        }

        .dgca-case-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        /* ============ 功能展示 ============ */
        .dgca-showcase {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(180deg, rgba(0, 180, 216, 0.05) 0%, transparent 100%);
        }

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

        .dgca-showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: clamp(2rem, 6vw, 4rem);
            align-items: center;
            margin-top: clamp(2rem, 6vw, 4rem);
        }

        .dgca-showcase-item {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .dgca-showcase-image {
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border);
            aspect-ratio: 4 / 3;
            background: rgba(45, 53, 97, 0.5);
        }

        .dgca-showcase-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }

        .dgca-showcase-title {
            font-size: clamp(1.35rem, 3vw, 1.65rem);
            font-weight: 800;
            color: var(--text-primary);
        }

        .dgca-showcase-desc {
            font-size: clamp(0.95rem, 2vw, 1.05rem);
            color: var(--text-secondary);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .dgca-showcase-points {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .dgca-point {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            font-size: clamp(0.9rem, 2vw, 1rem);
            color: var(--text-secondary);
        }

        .dgca-point::before {
            content: '●';
            color: var(--primary);
            font-size: 1.2em;
            flex-shrink: 0;
            margin-top: 2px;
        }

        /* ============ 用户评价 ============ */
        .dgca-testimonials {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(180deg, transparent, rgba(157, 78, 221, 0.03));
        }

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

        .dgca-testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: clamp(1.5rem, 4vw, 2.5rem);
            margin-top: clamp(2rem, 6vw, 4rem);
        }

        .dgca-testimonial-card {
            background: rgba(45, 53, 97, 0.5);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: clamp(1.5rem, 4vw, 2.5rem);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .dgca-testimonial-card:hover {
            background: rgba(45, 53, 97, 0.8);
            border-color: var(--primary);
            transform: translateY(-8px);
            box-shadow: 0 16px 40px rgba(157, 78, 221, 0.2);
        }

        .dgca-testimonial-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }

        .dgca-testimonial-author {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .dgca-author-name {
            font-weight: 700;
            color: var(--text-primary);
            font-size: clamp(0.95rem, 2vw, 1.05rem);
        }

        .dgca-author-role {
            font-size: clamp(0.85rem, 1.5vw, 0.95rem);
            color: var(--text-secondary);
        }

        .dgca-rating {
            display: flex;
            gap: 4px;
        }

        .dgca-star {
            color: var(--warning);
            font-size: 1.1em;
        }

        .dgca-testimonial-text {
            font-size: clamp(0.95rem, 2vw, 1.05rem);
            color: var(--text-secondary);
            line-height: 1.7;
            font-style: italic;
        }

        .dgca-testimonial-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }

        .dgca-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(157, 78, 221, 0.15);
            color: var(--primary);
            border-radius: 16px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ============ FAQ ============ */
        .dgca-faq {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(180deg, rgba(0, 180, 216, 0.03) 0%, transparent 100%);
        }

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

        .dgca-faq-list {
            display: flex;
            flex-direction: column;
            gap: clamp(1rem, 3vw, 1.5rem);
            margin-top: clamp(2rem, 6vw, 4rem);
        }

        .dgca-faq-item {
            background: rgba(45, 53, 97, 0.5);
            border: 1px solid var(--border);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .dgca-faq-item:hover {
            border-color: var(--primary);
            background: rgba(45, 53, 97, 0.8);
        }

        .dgca-faq-question {
            padding: clamp(1.25rem, 3vw, 1.75rem);
            background: rgba(45, 53, 97, 0.5);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: clamp(1rem, 2vw, 1.15rem);
            font-weight: 700;
            color: var(--text-primary);
            border: none;
            width: 100%;
            text-align: left;
            transition: all 0.3s ease;
        }

        .dgca-faq-question:hover {
            color: var(--primary);
        }

        .dgca-faq-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(157, 78, 221, 0.2);
            color: var(--primary);
            font-size: 1.2em;
            font-weight: 700;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .dgca-faq-item.dgca-active .dgca-faq-toggle {
            background: rgba(157, 78, 221, 0.4);
            transform: rotate(180deg);
        }

        .dgca-faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

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

        .dgca-faq-content {
            padding: clamp(1.25rem, 3vw, 1.75rem);
            font-size: clamp(0.95rem, 2vw, 1.05rem);
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ CTA 区域 ============ */
        .dgca-cta-section {
            padding: clamp(4rem, 10vw, 8rem) clamp(1rem, 5vw, 3rem);
            background: linear-gradient(135deg, rgba(157, 78, 221, 0.1) 0%, rgba(0, 180, 216, 0.1) 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .dgca-cta-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
            display: flex;
            flex-direction: column;
            gap: 32px;
            align-items: center;
        }

        .dgca-cta-title {
            font-size: clamp(1.75rem, 5vw, 2.5rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--text-primary), var(--secondary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .dgca-cta-subtitle {
            font-size: clamp(1rem, 2.5vw, 1.2rem);
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .dgca-cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ============ Footer ============ */
        .dgca-footer {
            background: linear-gradient(180deg, var(--bg-medium) 0%, var(--bg-dark) 100%);
            border-top: 1px solid var(--border);
            padding: clamp(3rem, 8vw, 5rem) clamp(1rem, 5vw, 3rem) clamp(2rem, 5vw, 3rem);
            color: var(--text-secondary);
        }

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

        .dgca-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: clamp(2rem, 5vw, 3rem);
            margin-bottom: clamp(2rem, 5vw, 3rem);
            padding-bottom: clamp(2rem, 5vw, 3rem);
            border-bottom: 1px solid var(--border);
        }

        .dgca-footer-section {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .dgca-footer-title {
            font-size: clamp(1rem, 2vw, 1.1rem);
            font-weight: 700;
            color: var(--text-primary);
        }

        .dgca-footer-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: clamp(0.9rem, 2vw, 1rem);
            transition: color 0.3s ease;
        }

        .dgca-footer-link:hover {
            color: var(--primary);
        }

        .dgca-footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: clamp(0.85rem, 1.5vw, 0.95rem);
        }

        .dgca-footer-brand {
            font-weight: 700;
            color: var(--primary);
            font-size: clamp(1rem, 2vw, 1.15rem);
        }

        .dgca-footer-socials {
            display: flex;
            gap: 16px;
        }

        .dgca-social-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(157, 78, 221, 0.2);
            color: var(--primary);
            text-decoration: none;
            font-size: 1.2em;
            transition: all 0.3s ease;
        }

        .dgca-social-link:hover {
            background: rgba(157, 78, 221, 0.4);
            transform: translateY(-3px);
        }

        /* ============ 响应式设计 ============ */
        @media (max-width: 1024px) {
            .dgca-hero-content {
                grid-template-columns: 1fr;
                gap: clamp(1.5rem, 5vw, 2.5rem);
            }

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

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

            .dgca-case-item:nth-child(even) .dgca-case-image {
                order: 0;
            }

            .dgca-footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .dgca-nav-items {
                display: none;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: rgba(10, 14, 39, 0.95);
                flex-direction: column;
                padding: 20px;
                gap: 12px;
                border-bottom: 1px solid var(--border);
            }

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

            .dgca-menu-toggle {
                display: block;
            }

            .dgca-cta-button {
                display: none;
            }

            .dgca-nav-items .dgca-cta-button {
                display: block;
                width: 100%;
                text-align: center;
            }

            .dgca-hero {
                min-height: auto;
                padding-top: 100px;
            }

            .dgca-hero-buttons {
                flex-direction: column;
                width: 100%;
            }

            .dgca-hero-buttons .dgca-btn-primary,
            .dgca-hero-buttons .dgca-btn-secondary {
                width: 100%;
                text-align: center;
            }

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

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

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

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

            .dgca-footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .dgca-cta-buttons {
                flex-direction: column;
                width: 100%;
            }

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

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

            .dgca-case-results {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .dgca-navbar {
                padding: 0 1rem;
            }

            .dgca-hero-brand {
                font-size: 0.75rem;
            }

            .dgca-section-heading {
                font-size: clamp(1.35rem, 5vw, 2rem);
            }

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

            .dgca-footer-socials {
                justify-content: center;
                width: 100%;
            }
        }

        /* ============ 工具类 ============ */
        .dgca-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 clamp(1rem, 5vw, 3rem);
        }

        .dgca-hidden {
            display: none;
        }

        .dgca-visible {
            display: block;
        }