:root {
            --gd6iw-primary: #ff6600;
            --gd6iw-secondary: #2c3e50;
            --gd6iw-bg-light: #fdfcf8;
            --gd6iw-text-main: #1a1a1a;
            --gd6iw-text-sub: #666666;
            --gd6iw-accent: #ff9d5c;
            --gd6iw-glass: rgba(255, 255, 255, 0.85);
            --gd6iw-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --gd6iw-max-width: 1400px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--gd6iw-bg-light);
            color: var(--gd6iw-text-main);
            line-height: 1.8;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏 */
        .gd6iw-navbar {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--gd6iw-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 0 24px;
        }

        .gd6iw-nav-container {
            max-width: var(--gd6iw-max-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .gd6iw-logo {
            min-width: 0;
            height: 40px;
        }

        .gd6iw-logo img {
            height: 100%;
            display: block;
        }

        .gd6iw-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .gd6iw-nav-item a {
            text-decoration: none;
            color: var(--gd6iw-text-main);
            font-size: 1rem;
            font-weight: 500;
            transition: color 0.3s;
            padding: 8px 0;
            position: relative;
        }

        .gd6iw-nav-item a:hover {
            color: var(--gd6iw-primary);
        }

        .gd6iw-nav-item a.active {
            color: var(--gd6iw-primary);
        }

        .gd6iw-nav-item a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gd6iw-primary);
            border-radius: 2px;
        }

        /* Hero 区块 */
        .gd6iw-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, #fff5f0 0%, #ffffff 60%);
            position: relative;
            overflow: hidden;
        }

        .gd6iw-container {
            max-width: var(--gd6iw-max-width);
            margin: 0 auto;
            padding: 0 32px;
        }

        .gd6iw-hero-flex {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .gd6iw-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .gd6iw-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.2;
            color: var(--gd6iw-secondary);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .gd6iw-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.5rem);
            color: var(--gd6iw-text-sub);
            margin-bottom: 48px;
            max-width: 600px;
        }

        .gd6iw-hero-visual {
            flex: 1;
            min-width: 320px;
            display: flex;
            justify-content: center;
            position: relative;
        }

        /* 模拟手写板视觉 */
        .gd6iw-writing-pad-mock {
            width: 100%;
            max-width: 500px;
            height: 350px;
            background: white;
            border-radius: 24px;
            box-shadow: var(--gd6iw-shadow);
            border: 8px solid #f0f0f0;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .gd6iw-writing-pad-mock::before {
            content: "书写你的表达...";
            color: #ddd;
            font-size: 1.5rem;
            font-family: "Kaiti", serif;
        }

        .gd6iw-ink-stroke {
            position: absolute;
            width: 4px;
            height: 100px;
            background: var(--gd6iw-primary);
            border-radius: 2px;
            transform: rotate(-45deg);
            animation: gd6iw-write-anim 3s infinite ease-in-out;
        }

        @keyframes gd6iw-write-anim {
            0% { transform: translate(-100px, 50px) rotate(-45deg); opacity: 0; }
            50% { transform: translate(0, 0) rotate(-45deg); opacity: 1; }
            100% { transform: translate(100px, -50px) rotate(-45deg); opacity: 0; }
        }

        /* 模块化特性区 */
        .gd6iw-section {
            padding: 96px 0;
        }

        .gd6iw-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .gd6iw-feature-card {
            background: white;
            padding: 48px;
            border-radius: 20px;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            border: 1px solid rgba(0,0,0,0.03);
            min-width: 0;
        }

        .gd6iw-feature-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--gd6iw-shadow);
            border-color: var(--gd6iw-accent);
        }

        .gd6iw-card-title {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--gd6iw-secondary);
        }

        .gd6iw-card-desc {
            font-size: 1rem;
            color: var(--gd6iw-text-sub);
        }

        /* 行业领域垂直增强 */
        .gd6iw-industry-section {
            background-color: #f8f9fa;
        }

        .gd6iw-industry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 24px;
        }

        .gd6iw-industry-item {
            background: white;
            border-left: 4px solid var(--gd6iw-primary);
            padding: 32px;
            border-radius: 0 16px 16px 0;
            min-width: 0;
        }

        .gd6iw-industry-tag {
            display: inline-block;
            background: #fff0e6;
            color: var(--gd6iw-primary);
            padding: 4px 12px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 0.875rem;
            margin-bottom: 16px;
        }

        /* 底部 */
        .gd6iw-footer {
            background: var(--gd6iw-secondary);
            color: white;
            padding: 64px 0 32px;
        }

        .gd6iw-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 48px;
        }

        .gd6iw-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .gd6iw-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .gd6iw-footer-column {
            min-width: 120px;
        }

        .gd6iw-footer-column h4 {
            margin-bottom: 20px;
            font-size: 1rem;
            color: var(--gd6iw-accent);
        }

        .gd6iw-footer-column ul {
            list-style: none;
        }

        .gd6iw-footer-column ul li {
            margin-bottom: 12px;
        }

        .gd6iw-footer-column ul li a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s;
        }

        .gd6iw-footer-column ul li a:hover {
            color: white;
        }

        .gd6iw-copyright {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 32px;
            text-align: center;
            font-size: 0.875rem;
            color: #95a5a6;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .gd6iw-nav-container {
                height: auto;
                padding: 16px 0;
            }
            .gd6iw-nav-menu {
                width: 100%;
                justify-content: center;
                gap: 12px;
                margin-top: 16px;
            }
            .gd6iw-hero-flex {
                flex-direction: column;
                text-align: center;
            }
            .gd6iw-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .gd6iw-grid, .gd6iw-industry-grid {
                grid-template-columns: 1fr;
            }
        }