:root {
            --hwo3t-primary: #FF6600;
            --hwo3t-primary-light: #FF8533;
            --hwo3t-dark: #1A1A1A;
            --hwo3t-text: #333333;
            --hwo3t-bg-light: #F8F9FA;
            --hwo3t-white: #FFFFFF;
            --hwo3t-spacing-unit: 8px;
            --hwo3t-container-max: 1320px;
            --hwo3t-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--hwo3t-text);
            line-height: 1.7;
            background-color: var(--hwo3t-white);
            overflow-x: hidden;
            word-break: break-word;
        }

        /* 导航栏设计 */
        .hwo3t-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .hwo3t-nav-container {
            max-width: var(--hwo3t-container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .hwo3t-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .hwo3t-logo img {
            height: 32px;
            display: block;
        }

        .hwo3t-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .hwo3t-nav-item a {
            text-decoration: none;
            color: var(--hwo3t-dark);
            font-weight: 500;
            font-size: 15px;
            transition: var(--hwo3t-transition);
            position: relative;
            padding: 8px 0;
        }

        .hwo3t-nav-item a:hover, 
        .hwo3t-nav-item a.hwo3t-active {
            color: var(--hwo3t-primary);
        }

        .hwo3t-nav-item a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--hwo3t-primary);
            transition: var(--hwo3t-transition);
        }

        .hwo3t-nav-item a:hover::after,
        .hwo3t-nav-item a.hwo3t-active::after {
            width: 100%;
        }

        /* Hero 区：对角线切割设计 */
        .hwo3t-hero {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #FFF5EE 0%, #FFFFFF 100%);
            position: relative;
            overflow: hidden;
        }

        .hwo3t-hero-content {
            max-width: var(--hwo3t-container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }

        .hwo3t-hero-text {
            flex: 1 1 500px;
            min-width: 0;
            padding-right: 48px;
        }

        .hwo3t-hero-badge {
            display: inline-block;
            background: rgba(255, 102, 0, 0.1);
            color: var(--hwo3t-primary);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hwo3t-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            color: var(--hwo3t-dark);
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .hwo3t-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: #666;
            margin-bottom: 40px;
            max-width: 600px;
        }

        .hwo3t-hero-visual {
            flex: 1 1 400px;
            min-width: 0;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* 模拟AI交互界面 */
        .hwo3t-ai-mockup {
            width: 100%;
            max-width: 500px;
            background: var(--hwo3t-white);
            border-radius: 24px;
            box-shadow: 0 40px 80px rgba(0,0,0,0.1);
            padding: 32px;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .hwo3t-mockup-line {
            height: 12px;
            background: #F0F0F0;
            border-radius: 6px;
            margin-bottom: 16px;
        }

        .hwo3t-mockup-line.short { width: 60%; }
        .hwo3t-mockup-line.medium { width: 85%; }

        .hwo3t-mockup-ai-box {
            background: linear-gradient(90deg, #FF6600, #FF9933);
            color: white;
            padding: 16px;
            border-radius: 12px 12px 12px 0;
            margin-top: 24px;
            font-size: 14px;
        }

        /* 场景解决方案：Grid 布局 */
        .hwo3t-scenarios {
            padding: 96px 0;
            background: var(--hwo3t-bg-light);
        }

        .hwo3t-section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 64px;
            padding: 0 24px;
        }

        .hwo3t-section-title {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            margin-bottom: 16px;
            color: var(--hwo3t-dark);
        }

        .hwo3t-grid-container {
            max-width: var(--hwo3t-container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .hwo3t-scenario-card {
            background: var(--hwo3t-white);
            padding: 40px;
            border-radius: 16px;
            transition: var(--hwo3t-transition);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .hwo3t-scenario-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            border-color: var(--hwo3t-primary);
        }

        .hwo3t-scenario-type {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--hwo3t-primary);
            display: flex;
            align-items: center;
        }

        .hwo3t-capability-list {
            list-style: none;
        }

        .hwo3t-capability-item {
            padding: 12px 0;
            border-bottom: 1px solid #F0F0F0;
            font-size: 15px;
            color: #555;
            display: flex;
            align-items: flex-start;
        }

        .hwo3t-capability-item::before {
            content: '•';
            color: var(--hwo3t-primary);
            margin-right: 12px;
            font-weight: bold;
        }

        /* 使用指南步骤：交替布局 */
        .hwo3t-guide-section {
            padding: 96px 0;
        }

        .hwo3t-guide-step {
            max-width: var(--hwo3t-container-max);
            margin: 0 auto 80px;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .hwo3t-guide-step:nth-child(even) {
            flex-direction: row-reverse;
        }

        .hwo3t-step-content {
            flex: 1 1 400px;
            min-width: 0;
        }

        .hwo3t-step-num {
            font-size: 48px;
            font-weight: 800;
            color: rgba(255,102,0,0.1);
            line-height: 1;
            margin-bottom: 16px;
        }

        .hwo3t-step-title {
            font-size: 28px;
            margin-bottom: 24px;
            color: var(--hwo3t-dark);
        }

        .hwo3t-step-desc {
            font-size: 17px;
            color: #666;
            line-height: 1.8;
        }

        .hwo3t-step-visual {
            flex: 1 1 400px;
            min-width: 0;
            background: #FDFDFD;
            border-radius: 20px;
            height: 300px;
            display: flex;
            justify-content: center;
            align-items: center;
            border: 2px dashed #EEE;
        }

        /* 动态资讯区块 */
        .hwo3t-news-section {
            padding: 80px 0;
            background: #111;
            color: white;
        }

        .hwo3t-news-section .hwo3t-section-title {
            color: white;
        }

        /* 页脚设计 */
        .hwo3t-footer {
            background: #F8F9FA;
            padding: 64px 0 32px;
            border-top: 1px solid #EEE;
        }

        .hwo3t-footer-content {
            max-width: var(--hwo3t-container-max);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .hwo3t-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .hwo3t-footer-brand-name {
            font-size: 24px;
            font-weight: 700;
            color: var(--hwo3t-dark);
            margin-bottom: 16px;
        }

        .hwo3t-footer-links {
            flex: 2 1 600px;
            min-width: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .hwo3t-link-group h4 {
            margin-bottom: 20px;
            font-size: 16px;
            color: var(--hwo3t-dark);
        }

        .hwo3t-link-group ul {
            list-style: none;
        }

        .hwo3t-link-group ul li {
            margin-bottom: 12px;
        }

        .hwo3t-link-group ul li a {
            text-decoration: none;
            color: #666;
            font-size: 14px;
            transition: var(--hwo3t-transition);
        }

        .hwo3t-link-group ul li a:hover {
            color: var(--hwo3t-primary);
        }

        .hwo3t-footer-bottom {
            max-width: var(--hwo3t-container-max);
            margin: 48px auto 0;
            padding: 24px;
            border-top: 1px solid #EEE;
            text-align: center;
            font-size: 13px;
            color: #999;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hwo3t-nav-container {
                height: auto;
                padding: 16px;
            }
            .hwo3t-nav-menu {
                width: 100%;
                margin-top: 16px;
                gap: 12px;
                justify-content: center;
            }
            .hwo3t-hero-text {
                padding-right: 0;
                text-align: center;
                margin-bottom: 48px;
            }
            .hwo3t-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hwo3t-guide-step, .hwo3t-guide-step:nth-child(even) {
                flex-direction: column;
                text-align: center;
            }
        }