:root {
            --ac83o-primary: #D43F33;
            --ac83o-secondary: #1A73E8;
            --ac83o-dark: #1E293B;
            --ac83o-text: #334155;
            --ac83o-light: #F8FAFC;
            --ac83o-white: #FFFFFF;
            --ac83o-border: #E2E8F0;
            --ac83o-max-width: 1320px;
            --ac83o-radius: 16px;
        }

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

        body {
            font-family: "Inter", "Microsoft YaHei", sans-serif;
            color: var(--ac83o-text);
            background-color: var(--ac83o-white);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 布局基础 */
        .ac83o-container {
            max-width: var(--ac83o-max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .ac83o-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .ac83o-grid {
            display: grid;
            gap: 32px;
        }

        /* 导航栏 */
        .ac83o-header {
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--ac83o-border);
            z-index: 1000;
            height: 72px;
            display: flex;
            align-items: center;
        }

        .ac83o-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

        .ac83o-logo {
            flex-shrink: 0;
        }

        .ac83o-logo img {
            height: 32px;
            display: block;
        }

        .ac83o-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .ac83o-menu li min-width: 0;

        .ac83o-menu a {
            text-decoration: none;
            color: var(--ac83o-dark);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            padding: 8px 0;
            position: relative;
        }

        .ac83o-menu a:hover, .ac83o-menu a.active {
            color: var(--ac83o-primary);
        }

        .ac83o-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--ac83o-primary);
        }

        /* Hero 区块 - 独特非对称布局 */
        .ac83o-hero {
            padding: 96px 0;
            background: radial-gradient(circle at 90% 10%, #fff5f5 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

        .ac83o-hero-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            align-items: center;
            gap: 64px;
        }

        .ac83o-hero-content {
            min-width: 0;
        }

        .ac83o-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(212, 63, 51, 0.1);
            color: var(--ac83o-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .ac83o-hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--ac83o-dark);
            margin-bottom: 24px;
        }

        .ac83o-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--ac83o-text);
            margin-bottom: 40px;
            max-width: 600px;
        }

        /* 转换卡片组件 */
        .ac83o-convert-box {
            background: var(--ac83o-white);
            border-radius: 24px;
            padding: 40px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.08);
            border: 1px solid var(--ac83o-border);
            text-align: center;
            min-width: 0;
        }

        .ac83o-drop-zone {
            border: 2px dashed #CBD5E1;
            border-radius: var(--ac83o-radius);
            padding: 48px 24px;
            transition: all 0.3s;
            cursor: pointer;
            background: var(--ac83o-light);
        }

        .ac83o-drop-zone:hover {
            border-color: var(--ac83o-primary);
            background: #FFF5F5;
        }

        .ac83o-btn {
            display: inline-block;
            padding: 16px 48px;
            background: linear-gradient(135deg, var(--ac83o-primary), #E53935);
            color: white;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            transition: transform 0.3s, box-shadow 0.3s;
            border: none;
            cursor: pointer;
            margin-top: 24px;
        }

        .ac83o-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(212, 63, 51, 0.3);
        }

        /* 智能模块区块 */
        .ac83o-modules {
            padding: 96px 0;
            background: var(--ac83o-light);
        }

        .ac83o-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .ac83o-section-title {
            font-size: clamp(2rem, 4vw, 2.5rem);
            font-weight: 700;
            color: var(--ac83o-dark);
            margin-bottom: 16px;
        }

        .ac83o-module-card {
            background: var(--ac83o-white);
            border-radius: var(--ac83o-radius);
            padding: 32px;
            transition: transform 0.3s;
            height: 100%;
            border: 1px solid var(--ac83o-border);
            min-width: 0;
        }

        .ac83o-module-card:hover {
            transform: translateY(-8px);
        }

        .ac83o-module-name {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--ac83o-primary);
        }

        .ac83o-point-list {
            list-style: none;
            margin-bottom: 24px;
        }

        .ac83o-point-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 15px;
        }

        .ac83o-point-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--ac83o-secondary);
            font-weight: bold;
        }

        .ac83o-metric {
            background: #F1F5F9;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--ac83o-secondary);
        }

        /* 服务流程 */
        .ac83o-flow {
            padding: 96px 0;
        }

        .ac83o-flow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .ac83o-flow-step {
            position: relative;
            padding: 32px;
            background: var(--ac83o-white);
            border: 1px solid var(--ac83o-border);
            border-radius: var(--ac83o-radius);
            min-width: 0;
        }

        .ac83o-step-num {
            font-size: 48px;
            font-weight: 900;
            color: rgba(212, 63, 51, 0.1);
            position: absolute;
            top: 10px;
            right: 20px;
        }

        .ac83o-step-name {
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 12px;
            color: var(--ac83o-dark);
        }

        /* 页脚 */
        .ac83o-footer {
            background: var(--ac83o-dark);
            color: #94A3B8;
            padding: 80px 0 40px;
        }

        .ac83o-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .ac83o-footer-brand {
            color: var(--ac83o-white);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .ac83o-footer-text {
            font-size: 14px;
            line-height: 1.8;
        }

        .ac83o-copyright {
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .ac83o-hero-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .ac83o-hero-subtitle {
                margin: 0 auto 40px;
            }
            .ac83o-menu {
                display: none; /* 移动端建议折叠菜单，此处简化 */
            }
        }