/* 基础变量与重置 */
        :root {
            --mtq8-primary: #0052CC;
            --mtq8-secondary: #FF4D4F;
            --mtq8-text-main: #1F2937;
            --mtq8-text-light: #6B7280;
            --mtq8-bg-soft: #F9FAFB;
            --mtq8-white: #FFFFFF;
            --mtq8-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --mtq8-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --mtq8-max-width: 1100px;
        }

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

        body {
            font-family: "Inter", "Microsoft YaHei", sans-serif;
            color: var(--mtq8-text-main);
            background-color: var(--mtq8-white);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航系统 */
        .mtq8-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            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;
        }

        .mtq8-nav-container {
            width: 100%;
            max-width: var(--mtq8-max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .mtq8-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .mtq8-logo img {
            height: 32px;
            display: block;
        }

        .mtq8-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
            min-width: 0;
        }

        .mtq8-nav-link {
            text-decoration: none;
            color: var(--mtq8-text-main);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 6px;
            transition: var(--mtq8-transition);
        }

        .mtq8-nav-link:hover {
            color: var(--mtq8-primary);
            background: rgba(0, 82, 204, 0.05);
        }

        .mtq8-nav-link.active {
            color: var(--mtq8-primary);
            background: rgba(0, 82, 204, 0.08);
        }

        /* Hero 视觉区 - 采用非对称几何布局 */
        .mtq8-hero {
            padding: 160px 24px 96px;
            background: radial-gradient(circle at top right, rgba(0, 82, 204, 0.05), transparent),
                        radial-gradient(circle at bottom left, rgba(255, 77, 79, 0.03), transparent);
            text-align: center;
            position: relative;
        }

        .mtq8-hero-inner {
            max-width: 900px;
            margin: 0 auto;
        }

        .mtq8-hero-badge {
            display: inline-block;
            background: var(--mtq8-primary);
            color: white;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 14px;
            margin-bottom: 24px;
        }

        .mtq8-hero-title {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            color: #111827;
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .mtq8-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--mtq8-text-light);
            max-width: 700px;
            margin: 0 auto 48px;
        }

        /* 公式分类网格 - 核心功能区 */
        .mtq8-formula-section {
            padding: 64px 24px;
            background: var(--mtq8-white);
        }

        .mtq8-section-title {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 48px;
            font-weight: 700;
        }

        .mtq8-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            max-width: var(--mtq8-max-width);
            margin: 0 auto;
        }

        .mtq8-card {
            background: var(--mtq8-bg-soft);
            border-radius: 16px;
            padding: 32px;
            transition: var(--mtq8-transition);
            border: 1px solid rgba(0, 0, 0, 0.03);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }

        .mtq8-card:hover {
            transform: translateY(-8px);
            background: var(--mtq8-white);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
            border-color: var(--mtq8-primary);
        }

        .mtq8-card-icon {
            width: 48px;
            height: 48px;
            background: var(--mtq8-primary);
            border-radius: 12px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 20px;
        }

        .mtq8-card-title {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--mtq8-text-main);
        }

        .mtq8-card-desc {
            font-size: 0.95rem;
            color: var(--mtq8-text-light);
            margin-bottom: 20px;
        }

        .mtq8-formula-preview {
            background: #E5E7EB;
            padding: 12px;
            border-radius: 8px;
            font-family: monospace;
            font-size: 0.9rem;
            color: var(--mtq8-primary);
        }

        /* 协作工作流展示 - 交错布局 */
        .mtq8-workflow {
            padding: 96px 24px;
            background: #F3F4F6;
        }

        .mtq8-flex-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            max-width: var(--mtq8-max-width);
            margin: 0 auto 64px;
            gap: 48px;
        }

        .mtq8-flex-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .mtq8-col {
            flex: 1;
            min-width: 300px;
        }

        .mtq8-visual-box {
            background: linear-gradient(135deg, var(--mtq8-primary), #00A3FF);
            height: 300px;
            border-radius: 24px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 20px 40px rgba(0, 82, 204, 0.2);
        }

        .mtq8-visual-placeholder {
            color: rgba(255, 255, 255, 0.2);
            font-size: 100px;
            font-weight: 900;
        }

        .mtq8-capability-list {
            list-style: none;
            margin-top: 24px;
        }

        .mtq8-capability-item {
            margin-bottom: 12px;
            padding-left: 24px;
            position: relative;
            font-size: 0.95rem;
        }

        .mtq8-capability-item::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--mtq8-primary);
            font-weight: bold;
        }

        /* 效能指标 */
        .mtq8-metrics {
            padding: 64px 24px;
            background: var(--mtq8-primary);
            color: white;
            text-align: center;
        }

        .mtq8-metrics-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 48px;
            max-width: var(--mtq8-max-width);
            margin: 0 auto;
        }

        .mtq8-metric-item {
            flex: 1;
            min-width: 200px;
        }

        .mtq8-metric-value {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .mtq8-metric-name {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        /* 页脚 */
        .mtq8-footer {
            padding: 64px 24px;
            background: #111827;
            color: #9CA3AF;
            text-align: center;
        }

        .mtq8-footer-brand {
            color: white;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .mtq8-footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            margin-bottom: 32px;
        }

        .mtq8-footer-link {
            color: #9CA3AF;
            text-decoration: none;
            font-size: 14px;
            transition: var(--mtq8-transition);
        }

        .mtq8-footer-link:hover {
            color: white;
        }

        .mtq8-copyright {
            font-size: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 32px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .mtq8-nav-menu {
                display: none; /* 简化版：实际开发可加汉堡菜单 */
            }
            .mtq8-hero {
                padding-top: 120px;
            }
            .mtq8-flex-row, .mtq8-flex-row:nth-child(even) {
                flex-direction: column;
            }
            .mtq8-col {
                width: 100%;
            }
        }