:root {
            --vf6p3w-primary: #ff6600;
            --vf6p3w-primary-light: #ff8533;
            --vf6p3w-dark: #222222;
            --vf6p3w-light: #f8f9fa;
            --vf6p3w-gray: #666666;
            --vf6p3w-border: #eeeeee;
            --vf6p3w-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --vf6p3w-radius: 16px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--vf6p3w-dark);
            line-height: 1.8;
            background-color: #ffffff;
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 导航栏 */
        .vf6p3w-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 72px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(15px);
            z-index: 1000;
            border-bottom: 1px solid var(--vf6p3w-border);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 5%;
        }

        .vf6p3w-logo {
            height: 36px;
            display: flex;
            align-items: center;
        }

        .vf6p3w-logo img {
            height: 100%;
            width: auto;
        }

        .vf6p3w-nav-links {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .vf6p3w-nav-links a {
            text-decoration: none;
            color: var(--vf6p3w-dark);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
        }

        .vf6p3w-nav-links a:hover {
            color: var(--vf6p3w-primary);
        }

        /* 容器 */
        .vf6p3w-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* Hero 区块 - 独特非对称布局 */
        .vf6p3w-hero {
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #fff5f0 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .vf6p3w-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,102,0,0.05) 0%, rgba(255,102,0,0) 70%);
            border-radius: 50%;
        }

        .vf6p3w-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .vf6p3w-hero-text {
            flex: 1;
            min-width: 320px;
        }

        .vf6p3w-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--vf6p3w-dark);
            font-weight: 800;
        }

        .vf6p3w-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--vf6p3w-gray);
            margin-bottom: 32px;
            max-width: 600px;
        }

        .vf6p3w-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 102, 0, 0.1);
            color: var(--vf6p3w-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* 教程核心卡片 */
        .vf6p3w-main-section {
            padding: 80px 0;
        }

        .vf6p3w-grid-methods {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .vf6p3w-method-card {
            background: #ffffff;
            border: 1px solid var(--vf6p3w-border);
            border-radius: var(--vf6p3w-radius);
            padding: 40px;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .vf6p3w-method-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--vf6p3w-shadow);
            border-color: var(--vf6p3w-primary);
        }

        .vf6p3w-method-icon {
            font-size: 40px;
            margin-bottom: 24px;
            display: block;
        }

        .vf6p3w-method-tag {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #999;
        }

        .vf6p3w-method-card h3 {
            font-size: 22px;
            margin-bottom: 16px;
            color: var(--vf6p3w-dark);
        }

        .vf6p3w-method-card p {
            color: var(--vf6p3w-gray);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .vf6p3w-step-list {
            list-style: none;
        }

        .vf6p3w-step-list li {
            padding: 10px 0;
            border-top: 1px dashed var(--vf6p3w-border);
            font-size: 14px;
            display: flex;
            align-items: flex-start;
        }

        .vf6p3w-step-list li::before {
            content: '✓';
            color: var(--vf6p3w-primary);
            margin-right: 12px;
            font-weight: bold;
        }

        /* 手机版专用区块 */
        .vf6p3w-mobile-guide {
            background: var(--vf6p3w-dark);
            color: #ffffff;
            padding: 96px 0;
            border-radius: 40px;
            margin: 40px 24px;
        }

        .vf6p3w-mobile-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
        }

        .vf6p3w-mobile-text {
            flex: 1;
            min-width: 300px;
        }

        .vf6p3w-mobile-text h2 {
            font-size: 32px;
            margin-bottom: 24px;
        }

        .vf6p3w-mobile-text p {
            color: #aaaaaa;
            margin-bottom: 32px;
        }

        .vf6p3w-btn {
            display: inline-block;
            padding: 14px 32px;
            background: var(--vf6p3w-primary);
            color: #ffffff;
            text-decoration: none;
            border-radius: 100px;
            font-weight: 600;
            transition: transform 0.3s, background 0.3s;
        }

        .vf6p3w-btn:hover {
            background: var(--vf6p3w-primary-light);
            transform: scale(1.05);
        }

        /* 常见问题区块 */
        .vf6p3w-faq {
            padding: 80px 0;
        }

        .vf6p3w-section-title {
            text-align: center;
            margin-bottom: 48px;
        }

        .vf6p3w-section-title h2 {
            font-size: 36px;
            margin-bottom: 16px;
        }

        .vf6p3w-faq-item {
            margin-bottom: 24px;
            background: var(--vf6p3w-light);
            padding: 24px;
            border-radius: 12px;
        }

        .vf6p3w-faq-item h4 {
            margin-bottom: 8px;
            color: var(--vf6p3w-primary);
        }

        /* 页脚 */
        .vf6p3w-footer {
            background: #fafafa;
            padding: 64px 0 32px;
            border-top: 1px solid var(--vf6p3w-border);
        }

        .vf6p3w-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 48px;
        }

        .vf6p3w-footer-brand {
            flex: 1;
            min-width: 200px;
        }

        .vf6p3w-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--vf6p3w-primary);
        }

        .vf6p3w-footer-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px 48px;
            min-width: 280px;
        }

        .vf6p3w-footer-links a {
            text-decoration: none;
            color: var(--vf6p3w-gray);
            font-size: 14px;
        }

        .vf6p3w-footer-links a:hover {
            color: var(--vf6p3w-primary);
        }

        .vf6p3w-copyright {
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid var(--vf6p3w-border);
            font-size: 13px;
            color: #999;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .vf6p3w-nav-links {
                display: none; /* 简化移动端导航 */
            }
            .vf6p3w-hero {
                padding: 120px 0 60px;
                text-align: center;
            }
            .vf6p3w-hero-content {
                justify-content: center;
            }
            .vf6p3w-mobile-guide {
                margin: 20px 10px;
                padding: 60px 20px;
                text-align: center;
            }
            .vf6p3w-grid-methods {
                grid-template-columns: 1fr;
            }
        }