/* 基础重置与全局变量 */
        :root {
            --idji-primary: #FF6600;
            --idji-primary-light: #FF8533;
            --idji-secondary: #2B2E33;
            --idji-text: #333333;
            --idji-text-light: #666666;
            --idji-bg: #F8F9FA;
            --idji-white: #FFFFFF;
            --idji-shadow: 0 4px 20px rgba(0,0,0,0.08);
            --idji-radius: 16px;
            --idji-container: 1100px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.7;
            color: var(--idji-text);
            background-color: var(--idji-bg);
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .idji-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .idji-nav-container {
            width: 100%;
            max-width: var(--idji-container);
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

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

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

        .idji-nav-links {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 20px;
            min-width: 0;
        }

        .idji-nav-links a {
            text-decoration: none;
            color: var(--idji-text);
            font-size: 15px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

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

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

        /* Hero 区区块 - 独特非对称布局 */
        .idji-hero {
            padding-top: 140px;
            padding-bottom: 80px;
            background: radial-gradient(circle at top right, rgba(255, 102, 0, 0.05), transparent),
                        linear-gradient(135deg, #FFFFFF 0%, #FDF2EB 100%);
            display: flex;
            justify-content: center;
            overflow: hidden;
        }

        .idji-hero-inner {
            width: 100%;
            max-width: var(--idji-container);
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

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

        .idji-hero-title {
            font-size: clamp(2.2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            color: var(--idji-secondary);
            margin-bottom: 24px;
        }

        .idji-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--idji-text-light);
            margin-bottom: 32px;
            max-width: 600px;
        }

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

        .idji-keyboard-preview {
            background: var(--idji-white);
            padding: 32px;
            border-radius: 24px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            border: 1px solid rgba(255, 102, 0, 0.1);
            transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
        }

        .idji-key-row {
            display: flex;
            gap: 8px;
            margin-bottom: 8px;
            flex-wrap: wrap;
        }

        .idji-key {
            padding: 8px 12px;
            background: #F0F2F5;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 700;
            color: #555;
            border-bottom: 3px solid #D1D5DB;
        }

        .idji-key.idji-special {
            background: var(--idji-primary);
            color: white;
            border-bottom-color: #CC5200;
        }

        /* 内容区块通用样式 */
        .idji-section {
            padding: 80px 0;
            display: flex;
            justify-content: center;
        }

        .idji-section-container {
            width: 100%;
            max-width: var(--idji-container);
            padding: 0 24px;
        }

        .idji-section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .idji-section-header h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            margin-bottom: 16px;
            color: var(--idji-secondary);
        }

        /* 快捷键卡片网格 */
        .idji-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .idji-card {
            background: var(--idji-white);
            padding: 32px;
            border-radius: var(--idji-radius);
            box-shadow: var(--idji-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(0,0,0,0.02);
            min-width: 0;
        }

        .idji-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 30px rgba(255, 102, 0, 0.12);
        }

        .idji-card-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 102, 0, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--idji-primary);
            font-size: 24px;
            font-weight: bold;
        }

        .idji-card h3 {
            margin-bottom: 16px;
            font-size: 1.25rem;
        }

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

        .idji-shortcut-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            border-bottom: 1px dashed #EEE;
        }

        .idji-shortcut-item:last-child {
            border-bottom: none;
        }

        kbd {
            background-color: #F3F4F6;
            border: 1px solid #D1D5DB;
            border-radius: 4px;
            box-shadow: 0 1px 1px rgba(0,0,0,.2), 0 2px 0 0 rgba(255,255,255,.7) inset;
            color: #374151;
            display: inline-block;
            font-size: .85em;
            font-weight: 700;
            line-height: 1;
            padding: 4px 8px;
            white-space: nowrap;
        }

        /* 智慧汪仔特色区块 */
        .idji-ai-section {
            background-color: var(--idji-secondary);
            color: var(--idji-white);
            border-radius: 40px;
            margin: 40px 24px;
            padding: 80px 48px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 40px;
        }

        .idji-ai-content {
            flex: 1;
            min-width: 300px;
        }

        .idji-ai-content h2 {
            font-size: 2.5rem;
            margin-bottom: 24px;
            color: var(--idji-primary);
        }

        .idji-ai-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(255, 102, 0, 0.2);
            color: var(--idji-primary);
            border-radius: 20px;
            font-size: 14px;
            margin-bottom: 16px;
        }

        /* 教程步骤 */
        .idji-steps {
            display: flex;
            flex-direction: column;
            gap: 48px;
        }

        .idji-step-item {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }

        .idji-step-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .idji-step-text {
            flex: 1;
            min-width: 320px;
        }

        .idji-step-number {
            font-size: 3rem;
            font-weight: 900;
            color: rgba(255, 102, 0, 0.1);
            line-height: 1;
            margin-bottom: -20px;
        }

        .idji-step-text h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        /* 底部动态内容区块 */
        .idji-dynamic-section {
            background: #FFF;
        }

        /* 页脚 */
        .idji-footer {
            background: #1A1C1E;
            color: #999;
            padding: 80px 0 40px;
            display: flex;
            justify-content: center;
        }

        .idji-footer-inner {
            width: 100%;
            max-width: var(--idji-container);
            padding: 0 24px;
        }

        .idji-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 64px;
        }

        .idji-footer-brand {
            flex: 1.5;
            min-width: 260px;
        }

        .idji-footer-brand h2 {
            color: var(--idji-white);
            font-size: 24px;
            margin-bottom: 20px;
        }

        .idji-footer-links {
            flex: 1;
            min-width: 160px;
        }

        .idji-footer-links h4 {
            color: var(--idji-white);
            margin-bottom: 24px;
            font-size: 16px;
        }

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

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

        .idji-footer-links a {
            color: #999;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .idji-copyright {
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
            text-align: center;
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .idji-nav-links {
                display: none; /* 简化移动端导航 */
            }
            
            .idji-hero {
                padding-top: 100px;
                text-align: center;
            }

            .idji-hero-inner {
                flex-direction: column;
            }

            .idji-keyboard-preview {
                transform: none;
            }

            .idji-ai-section {
                padding: 40px 24px;
                margin: 20px 16px;
            }

            .idji-ai-content h2 {
                font-size: 1.8rem;
            }
        }