/* 变量与基础重置 */
        :root {
            --i0yps4-primary: #D32F2F;
            --i0yps4-primary-light: #FFEBEE;
            --i0yps4-accent: #FF5722;
            --i0yps4-dark: #1A1A1B;
            --i0yps4-text: #333333;
            --i0yps4-text-light: #666666;
            --i0yps4-bg: #FFFFFF;
            --i0yps4-bg-soft: #F4F7F9;
            --i0yps4-border: rgba(0, 0, 0, 0.08);
            --i0yps4-radius: 16px;
            --i0yps4-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            --i0yps4-container-width: 1100px;
        }

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

        body {
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            color: var(--i0yps4-text);
            background-color: var(--i0yps4-bg);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局容器 */
        .i0yps4-container {
            max-width: var(--i0yps4-container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏设计 */
        .i0yps4-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--i0yps4-border);
            transition: all 0.3s ease;
        }

        .i0yps4-nav-container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            min-width: 0;
        }

        .i0yps4-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .i0yps4-logo img {
            height: 36px;
            width: auto;
            display: block;
        }

        .i0yps4-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .i0yps4-menu-item a {
            text-decoration: none;
            color: var(--i0yps4-text-light);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .i0yps4-menu-item a:hover {
            color: var(--i0yps4-primary);
            background: var(--i0yps4-primary-light);
        }

        .i0yps4-menu-item a.active {
            color: var(--i0yps4-primary);
            background: var(--i0yps4-primary-light);
        }

        /* Hero 区块 - 独特非对称设计 */
        .i0yps4-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, #fff5f5 0%, #ffffff 70%);
            position: relative;
            overflow: hidden;
        }

        .i0yps4-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .i0yps4-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .i0yps4-hero-badge {
            display: inline-block;
            background: var(--i0yps4-primary);
            color: #fff;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .i0yps4-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--i0yps4-dark);
            margin-bottom: 24px;
        }

        .i0yps4-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--i0yps4-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .i0yps4-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
            display: flex;
            justify-content: center;
        }

        /* 模拟右键菜单的CSS艺术 */
        .i0yps4-menu-mockup {
            background: #ffffff;
            border-radius: 12px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.1);
            padding: 12px;
            width: 280px;
            border: 1px solid var(--i0yps4-border);
            transform: rotate(-2deg);
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0) rotate(-2deg); }
            50% { transform: translateY(-15px) rotate(1deg); }
        }

        .i0yps4-mock-item {
            height: 32px;
            margin-bottom: 8px;
            background: #f0f0f0;
            border-radius: 4px;
            display: flex;
            align-items: center;
            padding: 0 10px;
        }

        .i0yps4-mock-item.highlight {
            background: var(--i0yps4-primary-light);
            border: 1px dashed var(--i0yps4-primary);
        }

        .i0yps4-mock-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ccc;
            margin-right: 10px;
        }

        .i0yps4-mock-item.highlight .i0yps4-mock-dot {
            background: var(--i0yps4-primary);
        }

        /* 功能卡片区块 */
        .i0yps4-section {
            padding: 96px 0;
            word-break: break-word;
        }

        .i0yps4-section-light {
            background-color: var(--i0yps4-bg-soft);
        }

        .i0yps4-section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 64px;
        }

        .i0yps4-section-title {
            font-size: clamp(1.5rem, 3vw + 0.5rem, 2.5rem);
            color: var(--i0yps4-dark);
            margin-bottom: 16px;
        }

        .i0yps4-grid-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .i0yps4-card {
            background: #fff;
            padding: 40px;
            border-radius: var(--i0yps4-radius);
            border: 1px solid var(--i0yps4-border);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .i0yps4-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--i0yps4-shadow);
            border-color: var(--i0yps4-primary);
        }

        .i0yps4-card-icon {
            width: 56px;
            height: 56px;
            background: var(--i0yps4-primary-light);
            color: var(--i0yps4-primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 24px;
        }

        .i0yps4-card h3 {
            font-size: 20px;
            margin-bottom: 16px;
            color: var(--i0yps4-dark);
        }

        /* 步骤区块 - 交错布局 */
        .i0yps4-step-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }

        .i0yps4-step-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .i0yps4-step-text {
            flex: 1;
            min-width: 300px;
        }

        .i0yps4-step-number {
            font-size: 48px;
            font-weight: 900;
            color: var(--i0yps4-primary-light);
            line-height: 1;
            margin-bottom: 16px;
        }

        .i0yps4-step-image {
            flex: 1;
            min-width: 300px;
            background: #fff;
            padding: 24px;
            border-radius: var(--i0yps4-radius);
            box-shadow: var(--i0yps4-shadow);
            border: 1px solid var(--i0yps4-border);
        }

        /* 配置代码区 */
        .i0yps4-config-box {
            background: #1e1e1e;
            color: #d4d4d4;
            padding: 32px;
            border-radius: 12px;
            font-family: 'Consolas', monospace;
            font-size: 14px;
            overflow-x: auto;
            border-left: 4px solid var(--i0yps4-primary);
        }

        .i0yps4-config-comment { color: #6a9955; }
        .i0yps4-config-key { color: #9cdcfe; }
        .i0yps4-config-val { color: #ce9178; }

        /* 页脚 */
        .i0yps4-footer {
            background: var(--i0yps4-dark);
            color: #fff;
            padding: 80px 0 40px;
        }

        .i0yps4-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            margin-bottom: 64px;
        }

        .i0yps4-footer-brand {
            flex: 2;
            min-width: 280px;
        }

        .i0yps4-footer-brand-name {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

        .i0yps4-footer-links {
            flex: 1;
            min-width: 150px;
        }

        .i0yps4-footer-links h4 {
            font-size: 18px;
            margin-bottom: 24px;
            color: #fff;
        }

        .i0yps4-footer-links ul {
            list-style: none;
        }

        .i0yps4-footer-links li {
            margin-bottom: 12px;
        }

        .i0yps4-footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: color 0.2s;
        }

        .i0yps4-footer-links a:hover {
            color: var(--i0yps4-primary);
        }

        .i0yps4-copyright {
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            color: #666;
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .i0yps4-nav-container {
                height: auto;
                padding: 16px 0;
            }
            .i0yps4-menu {
                width: 100%;
                margin-top: 16px;
                justify-content: center;
            }
            .i0yps4-hero {
                padding-top: 120px;
                text-align: center;
            }
            .i0yps4-hero-grid {
                flex-direction: column;
            }
            .i0yps4-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .i0yps4-step-item, .i0yps4-step-item:nth-child(even) {
                flex-direction: column;
                gap: 32px;
            }
        }