:root {
            --fti6a-primary: #FF4E20;
            --fti6a-primary-light: #FF8A65;
            --fti6a-dark: #1D1D1F;
            --fti6a-gray: #86868B;
            --fti6a-bg-alt: #F5F5F7;
            --fti6a-white: #FFFFFF;
            --fti6a-accent-blue: #2D5AF1;
            --fti6a-radius: 20px;
            --fti6a-transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--fti6a-white);
            color: var(--fti6a-dark);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航栏设计 */
        .fti6a-navbar {
            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);
            padding: 0 5vw;
        }

        .fti6a-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            height: 72px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .fti6a-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .fti6a-logo img {
            height: 32px;
            display: block;
        }

        .fti6a-nav-links {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .fti6a-nav-links a {
            text-decoration: none;
            color: var(--fti6a-dark);
            font-size: 15px;
            font-weight: 500;
            transition: var(--fti6a-transition);
        }

        .fti6a-nav-links a:hover {
            color: var(--fti6a-primary);
        }

        /* Hero 视觉对比区 */
        .fti6a-hero {
            padding: 160px 5vw 80px;
            background: linear-gradient(135deg, #FFF5F2 0%, #FFFFFF 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .fti6a-hero::before {
            content: "VS";
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-100%, -50%);
            font-size: 20vw;
            font-weight: 900;
            color: rgba(255, 78, 32, 0.03);
            pointer-events: none;
            z-index: 0;
        }

        .fti6a-hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
            margin: 0 auto;
        }

        .fti6a-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
            word-break: keep-all;
        }

        .fti6a-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.5rem);
            color: var(--fti6a-gray);
            max-width: 700px;
            margin: 0 auto 48px;
        }

        /* 核心对比磁贴 */
        .fti6a-vs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            max-width: 1300px;
            margin: 64px auto;
            padding: 0 24px;
        }

        .fti6a-vs-card {
            background: var(--fti6a-white);
            border-radius: var(--fti6a-radius);
            padding: 48px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.04);
            transition: var(--fti6a-transition);
            border: 1px solid rgba(0,0,0,0.03);
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .fti6a-vs-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(255, 78, 32, 0.1);
            border-color: var(--fti6a-primary-light);
        }

        .fti6a-card-icon {
            width: 64px;
            height: 64px;
            background: var(--fti6a-bg-alt);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--fti6a-primary);
        }

        .fti6a-vs-card h3 {
            font-size: 24px;
            font-weight: 700;
        }

        /* 深度解析区块 */
        .fti6a-analysis-section {
            padding: 96px 5vw;
            background-color: var(--fti6a-bg-alt);
        }

        .fti6a-analysis-container {
            max-width: 1100px;
            margin: 0 auto;
        }

        .fti6a-split-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
        }

        .fti6a-split-text {
            flex: 1;
            min-width: 300px;
        }

        .fti6a-split-visual {
            flex: 1;
            min-width: 300px;
            background: var(--fti6a-white);
            border-radius: var(--fti6a-radius);
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: inset 0 0 100px rgba(0,0,0,0.02);
            position: relative;
        }

        /* 模拟对比条 */
        .fti6a-stat-bar {
            width: 80%;
            height: 12px;
            background: #E5E5E7;
            border-radius: 6px;
            margin: 16px 0;
            overflow: hidden;
            position: relative;
        }

        .fti6a-stat-fill {
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            background: var(--fti6a-primary);
            border-radius: 6px;
            transition: width 2s ease-out;
        }

        /* 动态内容区块 */
        .fti6a-dynamic-section {
            padding: 96px 5vw;
            background: var(--fti6a-white);
        }

        .fti6a-article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 48px;
        }

        .fti6a-article-item {
            padding: 24px;
            border-bottom: 1px solid #EEE;
            transition: var(--fti6a-transition);
        }

        .fti6a-article-item:hover {
            background: var(--fti6a-bg-alt);
            padding-left: 32px;
        }

        /* 底部CTA */
        .fti6a-cta {
            padding: 120px 5vw;
            background: var(--fti6a-dark);
            color: var(--fti6a-white);
            text-align: center;
        }

        .fti6a-btn {
            display: inline-block;
            padding: 18px 48px;
            background: var(--fti6a-primary);
            color: var(--fti6a-white);
            text-decoration: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 18px;
            transition: var(--fti6a-transition);
            margin-top: 32px;
        }

        .fti6a-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 30px rgba(255, 78, 32, 0.4);
        }

        /* 页脚 */
        .fti6a-footer {
            padding: 64px 5vw;
            background: var(--fti6a-bg-alt);
            border-top: 1px solid #E5E5E7;
        }

        .fti6a-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .fti6a-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--fti6a-primary);
        }

        .fti6a-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .fti6a-footer-group h4 {
            margin-bottom: 20px;
            font-size: 14px;
            color: var(--fti6a-gray);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .fti6a-footer-group ul {
            list-style: none;
        }

        .fti6a-footer-group ul li {
            margin-bottom: 12px;
        }

        .fti6a-footer-group ul li a {
            text-decoration: none;
            color: var(--fti6a-dark);
            font-size: 14px;
            transition: var(--fti6a-transition);
        }

        .fti6a-footer-group ul li a:hover {
            color: var(--fti6a-primary);
        }

        .fti6a-copyright {
            width: 100%;
            margin-top: 64px;
            padding-top: 24px;
            border-top: 1px solid #DDD;
            font-size: 12px;
            color: var(--fti6a-gray);
            text-align: center;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .fti6a-nav-links {
                display: none; /* 简化移动端 */
            }
            .fti6a-hero {
                padding-top: 120px;
            }
            .fti6a-split-content {
                flex-direction: column;
            }
            .fti6a-split-visual {
                height: 250px;
                order: -1;
            }
        }