:root {
            --idji-primary: #ff4e22;
            --idji-primary-light: #ff7654;
            --idji-dark: #1d1d1f;
            --idji-gray: #86868b;
            --idji-light: #f5f5f7;
            --idji-white: #ffffff;
            --idji-spacing-unit: 8px;
            --idji-container-max: 1300px;
            --idji-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "SF Pro Display", "Microsoft YaHei", sans-serif;
            background-color: var(--idji-white);
            color: var(--idji-dark);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏 */
        .idji-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .idji-nav-container {
            max-width: var(--idji-container-max);
            margin: 0 auto;
            padding: 0 48px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .idji-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

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

        .idji-nav-links {
            display: flex;
            gap: 32px;
            list-style: none;
            flex-wrap: wrap;
            min-width: 0;
        }

        .idji-nav-links a {
            text-decoration: none;
            color: var(--idji-dark);
            font-size: 14px;
            font-weight: 500;
            transition: var(--idji-transition);
            white-space: nowrap;
        }

        .idji-nav-links a:hover {
            color: var(--idji-primary);
        }

        /* Hero 区 - 独特居中错层布局 */
        .idji-hero {
            padding: 160px 24px 96px;
            background: radial-gradient(circle at 50% 0%, #fff5f2 0%, #ffffff 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .idji-hero-inner {
            max-width: 900px;
            margin: 0 auto;
        }

        .idji-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.1;
            margin-bottom: 24px;
            word-break: break-word;
            background: linear-gradient(135deg, #1d1d1f 0%, #434343 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .idji-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.5rem);
            color: var(--idji-gray);
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            word-break: break-word;
        }

        .idji-hero-cta {
            display: inline-flex;
            align-items: center;
            background: var(--idji-primary);
            color: white;
            padding: 18px 48px;
            border-radius: 40px;
            text-decoration: none;
            font-size: 18px;
            font-weight: 600;
            transition: var(--idji-transition);
            box-shadow: 0 10px 30px rgba(255, 78, 34, 0.3);
        }

        .idji-hero-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(255, 78, 34, 0.4);
            background: var(--idji-primary-light);
        }

        /* 模拟输入框装饰 */
        .idji-typing-mockup {
            margin-top: 64px;
            background: var(--idji-white);
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 40px 100px rgba(0,0,0,0.08);
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
            border: 1px solid rgba(0,0,0,0.03);
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .idji-mockup-line {
            height: 12px;
            background: var(--idji-light);
            border-radius: 6px;
            width: 100%;
        }

        .idji-mockup-cursor {
            display: inline-block;
            width: 2px;
            height: 24px;
            background: var(--idji-primary);
            animation: idji-blink 1s infinite;
            vertical-align: middle;
        }

        @keyframes idji-blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0; }
        }

        /* 功能卡片网格 - 3列自适应 */
        .idji-section {
            padding: 96px 24px;
            max-width: var(--idji-container-max);
            margin: 0 auto;
        }

        .idji-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .idji-card {
            background: var(--idji-light);
            padding: 48px;
            border-radius: 32px;
            transition: var(--idji-transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
            overflow-wrap: break-word;
        }

        .idji-card:hover {
            background: #fff;
            box-shadow: 0 20px 60px rgba(0,0,0,0.05);
            transform: translateY(-10px);
        }

        .idji-card-icon {
            font-size: 40px;
            margin-bottom: 24px;
            color: var(--idji-primary);
        }

        .idji-card-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .idji-card-text {
            color: var(--idji-gray);
            font-size: 16px;
            line-height: 1.8;
        }

        /* 智慧汪仔特色区块 - 左右交叉布局 */
        .idji-feature-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 128px;
            flex-wrap: wrap;
        }

        .idji-feature-row.idji-reverse {
            flex-direction: row-reverse;
        }

        .idji-feature-content {
            flex: 1;
            min-width: 320px;
        }

        .idji-feature-visual {
            flex: 1.2;
            min-width: 320px;
            background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
            border-radius: 40px;
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .idji-wangzai-bubble {
            background: white;
            padding: 20px 30px;
            border-radius: 20px 20px 20px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            max-width: 80%;
            position: relative;
        }

        .idji-wangzai-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(255, 78, 34, 0.1);
            color: var(--idji-primary);
            border-radius: 12px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        /* 动态内容标记区块 */
        .idji-news-section {
            background: var(--idji-dark);
            color: white;
            padding: 96px 24px;
            border-radius: 48px;
            margin: 64px 24px;
        }

        .idji-news-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 48px;
            flex-wrap: wrap;
            gap: 24px;
        }

        .idji-news-title {
            font-size: 36px;
            font-weight: 700;
        }

        .idji-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .idji-news-item {
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding: 24px 0;
            transition: var(--idji-transition);
            text-decoration: none;
            color: inherit;
            display: block;
        }

        .idji-news-item:hover {
            border-color: var(--idji-primary);
            padding-left: 10px;
        }

        .idji-news-date {
            font-size: 14px;
            color: var(--idji-gray);
            margin-bottom: 8px;
        }

        .idji-news-subject {
            font-size: 18px;
            font-weight: 500;
        }

        /* 对比区域 */
        .idji-comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 48px;
            background: white;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0,0,0,0.05);
        }

        .idji-comparison-table th, .idji-comparison-table td {
            padding: 24px;
            text-align: center;
            border-bottom: 1px solid var(--idji-light);
        }

        .idji-comparison-table th {
            background: var(--idji-light);
            font-weight: 700;
        }

        .idji-highlight {
            color: var(--idji-primary);
            font-weight: 700;
        }

        /* 页脚 */
        .idji-footer {
            background: var(--idji-light);
            padding: 96px 24px 48px;
            margin-top: 128px;
        }

        .idji-footer-container {
            max-width: var(--idji-container-max);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .idji-footer-brand-name {
            font-size: 24px;
            font-weight: 800;
            color: var(--idji-dark);
            margin-bottom: 16px;
        }

        .idji-footer-list {
            list-style: none;
        }

        .idji-footer-list li {
            margin-bottom: 12px;
        }

        .idji-footer-list a {
            text-decoration: none;
            color: var(--idji-gray);
            font-size: 14px;
            transition: var(--idji-transition);
        }

        .idji-footer-list a:hover {
            color: var(--idji-primary);
        }

        .idji-copyright {
            text-align: center;
            padding-top: 48px;
            border-top: 1px solid rgba(0,0,0,0.05);
            color: var(--idji-gray);
            font-size: 13px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .idji-nav-container {
                padding: 0 24px;
            }
            .idji-nav-links {
                display: none; /* 简化移动端，实际可加汉堡菜单 */
            }
            .idji-hero {
                padding-top: 120px;
            }
            .idji-feature-row {
                gap: 32px;
                margin-bottom: 64px;
            }
            .idji-feature-visual {
                height: 300px;
            }
        }