/* 基础变量与重置 */
        :root {
            --ac83o-primary: #D42E2D;
            --ac83o-primary-hover: #B72524;
            --ac83o-dark: #121212;
            --ac83o-text: #333333;
            --ac83o-text-light: #666666;
            --ac83o-bg-gray: #F8F9FA;
            --ac83o-white: #FFFFFF;
            --ac83o-glass: rgba(255, 255, 255, 0.85);
            --ac83o-radius: 16px;
            --ac83o-transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--ac83o-text);
            line-height: 1.8;
            background-color: var(--ac83o-white);
            overflow-x: hidden;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--ac83o-transition);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* 布局容器 */
        .ac83o-container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 导航栏 */
        .ac83o-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--ac83o-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            height: 72px;
            display: flex;
            align-items: center;
        }

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

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

        .ac83o-logo img {
            height: 32px;
            width: auto;
        }

        .ac83o-menu {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .ac83o-menu-item {
            font-size: 15px;
            font-weight: 500;
            color: var(--ac83o-text);
            position: relative;
            padding: 8px 0;
        }

        .ac83o-menu-item:hover {
            color: var(--ac83o-primary);
        }

        .ac83o-menu-item.active {
            color: var(--ac83o-primary);
        }

        .ac83o-menu-item.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-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at top right, #fff5f5, #ffffff);
            overflow: hidden;
        }

        .ac83o-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .ac83o-hero-text {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .ac83o-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(212, 46, 45, 0.1);
            color: var(--ac83o-primary);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .ac83o-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.2;
            font-weight: 800;
            color: var(--ac83o-dark);
            margin-bottom: 24px;
        }

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

        .ac83o-hero-visual {
            flex: 1.2;
            min-width: 320px;
            position: relative;
        }

        .ac83o-hero-image-wrapper {
            position: relative;
            border-radius: var(--ac83o-radius);
            box-shadow: 0 32px 64px rgba(0,0,0,0.1);
            overflow: hidden;
            transform: perspective(1000px) rotateY(-5deg);
        }

        /* 智联模块展示区 */
        .ac83o-modules {
            padding: 96px 0;
            background: var(--ac83o-bg-gray);
        }

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

        .ac83o-section-title {
            font-size: clamp(1.8rem, 3vw + 0.5rem, 2.5rem);
            margin-bottom: 16px;
            color: var(--ac83o-dark);
        }

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

        .ac83o-module-card {
            flex: 1;
            min-width: 300px;
            background: var(--ac83o-white);
            padding: 40px;
            border-radius: var(--ac83o-radius);
            box-shadow: 0 4px 20px rgba(0,0,0,0.03);
            transition: var(--ac83o-transition);
            border: 1px solid rgba(0,0,0,0.02);
            display: flex;
            flex-direction: column;
        }

        .ac83o-module-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
        }

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

        .ac83o-module-points {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .ac83o-module-points li {
            padding: 8px 0;
            border-bottom: 1px solid #f0f0f0;
            font-size: 15px;
            color: var(--ac83o-text);
        }

        .ac83o-module-metric {
            background: #fdf2f2;
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--ac83o-primary);
            font-weight: 600;
        }

        /* 特色图文混排区 */
        .ac83o-feature-spotlight {
            padding: 96px 0;
        }

        .ac83o-spotlight-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }

        .ac83o-spotlight-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .ac83o-spotlight-img {
            flex: 1;
            min-width: 320px;
            border-radius: var(--ac83o-radius);
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .ac83o-spotlight-content {
            flex: 1;
            min-width: 320px;
        }

        .ac83o-spotlight-title {
            font-size: 32px;
            margin-bottom: 24px;
            color: var(--ac83o-dark);
        }

        /* 服务流程 */
        .ac83o-flow {
            padding: 96px 0;
            background: var(--ac83o-dark);
            color: var(--ac83o-white);
        }

        .ac83o-flow-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .ac83o-flow-step {
            flex: 1;
            min-width: 240px;
            padding: 32px;
            background: rgba(255,255,255,0.05);
            border-left: 4px solid var(--ac83o-primary);
            transition: var(--ac83o-transition);
        }

        .ac83o-flow-step:hover {
            background: rgba(255,255,255,0.1);
        }

        .ac83o-step-num {
            font-size: 14px;
            text-transform: uppercase;
            color: var(--ac83o-primary);
            margin-bottom: 8px;
            font-weight: bold;
        }

        .ac83o-step-name {
            font-size: 20px;
            margin-bottom: 12px;
        }

        .ac83o-step-action {
            font-size: 15px;
            color: #aaa;
        }

        /* 页脚 */
        .ac83o-footer {
            padding: 64px 0 32px;
            background: var(--ac83o-white);
            border-top: 1px solid #eee;
        }

        .ac83o-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 48px;
        }

        .ac83o-footer-brand {
            flex: 1.5;
            min-width: 280px;
        }

        .ac83o-footer-title {
            font-size: 24px;
            font-weight: 800;
            color: var(--ac83o-primary);
            margin-bottom: 16px;
        }

        .ac83o-footer-links {
            flex: 1;
            min-width: 150px;
        }

        .ac83o-footer-links h4 {
            margin-bottom: 20px;
            font-size: 16px;
        }

        .ac83o-footer-links ul {
            list-style: none;
        }

        .ac83o-footer-links li {
            margin-bottom: 12px;
        }

        .ac83o-footer-links a {
            color: var(--ac83o-text-light);
            font-size: 14px;
        }

        .ac83o-footer-links a:hover {
            color: var(--ac83o-primary);
        }

        .ac83o-copyright {
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid #f0f0f0;
            font-size: 14px;
            color: #999;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .ac83o-menu {
                display: none; /* 简化移动端，实际项目中需汉堡菜单 */
            }
            .ac83o-hero-visual {
                display: none;
            }
            .ac83o-hero {
                padding-top: 120px;
                text-align: center;
            }
            .ac83o-hero-text {
                min-width: 100%;
            }
            .ac83o-module-card {
                min-width: 100%;
            }
            .ac83o-flow-step {
                min-width: 100%;
            }
        }

        /* 动画增强 */
        .ac83o-btn {
            display: inline-block;
            padding: 16px 40px;
            background: var(--ac83o-primary);
            color: var(--ac83o-white);
            border-radius: 50px;
            font-weight: 600;
            transition: var(--ac83o-transition);
            box-shadow: 0 10px 20px rgba(212, 46, 45, 0.2);
        }

        .ac83o-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(212, 46, 45, 0.3);
            background: var(--ac83o-primary-hover);
        }