:root {
            --hwo3t-primary: #FF6600;
            --hwo3t-primary-hover: #e65c00;
            --hwo3t-bg-light: #F9FAFB;
            --hwo3t-text-main: #1D1D1F;
            --hwo3t-text-sub: #6E6E73;
            --hwo3t-white: #FFFFFF;
            --hwo3t-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --hwo3t-radius: 16px;
            --hwo3t-container-width: 1320px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--hwo3t-bg-light);
            color: var(--hwo3t-text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 导航系统 */
        .hwo3t-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .hwo3t-nav-container {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .hwo3t-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .hwo3t-logo img {
            height: 32px;
            width: auto;
        }

        .hwo3t-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 32px;
            min-width: 0;
        }

        .hwo3t-menu a {
            text-decoration: none;
            color: var(--hwo3t-text-main);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .hwo3t-menu a:hover {
            color: var(--hwo3t-primary);
        }

        .hwo3t-menu a.hwo3t-active {
            color: var(--hwo3t-primary);
            position: relative;
        }

        .hwo3t-menu a.hwo3t-active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hwo3t-primary);
            border-radius: 2px;
        }

        /* Hero 搜索区 */
        .hwo3t-hero {
            padding-top: 160px;
            padding-bottom: 80px;
            text-align: center;
            background: linear-gradient(135deg, #fff 0%, #fff5ed 100%);
            border-bottom-left-radius: 64px;
            border-bottom-right-radius: 64px;
        }

        .hwo3t-hero-content {
            max-width: 800px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .hwo3t-hero h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--hwo3t-text-main);
        }

        .hwo3t-hero p {
            font-size: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);
            color: var(--hwo3t-text-sub);
            margin-bottom: 48px;
        }

        .hwo3t-search-wrapper {
            position: relative;
            max-width: 640px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        .hwo3t-search-input {
            width: 100%;
            padding: 20px 32px;
            padding-right: 120px;
            border-radius: 40px;
            border: 2px solid transparent;
            background: var(--hwo3t-white);
            box-shadow: 0 20px 40px rgba(255, 102, 0, 0.1);
            font-size: 18px;
            outline: none;
            transition: all 0.3s ease;
        }

        .hwo3t-search-input:focus {
            border-color: var(--hwo3t-primary);
            box-shadow: 0 20px 40px rgba(255, 102, 0, 0.15);
        }

        .hwo3t-search-btn {
            position: absolute;
            right: 8px;
            top: 8px;
            background: var(--hwo3t-primary);
            color: var(--hwo3t-white);
            border: none;
            padding: 12px 28px;
            border-radius: 32px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .hwo3t-search-btn:hover {
            background: var(--hwo3t-primary-hover);
        }

        /* 场景化解决方案区块 */
        .hwo3t-section {
            padding: 96px 24px;
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
        }

        .hwo3t-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .hwo3t-section-header h2 {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }

        .hwo3t-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            flex-wrap: wrap;
        }

        .hwo3t-scenario-card {
            background: var(--hwo3t-white);
            border-radius: var(--hwo3t-radius);
            padding: 40px;
            box-shadow: var(--hwo3t-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .hwo3t-scenario-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.12);
        }

        .hwo3t-card-icon {
            width: 64px;
            height: 64px;
            background: #fff5ed;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            font-size: 32px;
        }

        .hwo3t-scenario-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--hwo3t-primary);
        }

        .hwo3t-capability-list {
            list-style: none;
            margin-top: 16px;
        }

        .hwo3t-capability-list li {
            padding: 8px 0;
            color: var(--hwo3t-text-sub);
            border-bottom: 1px solid #f0f0f0;
            display: flex;
            align-items: center;
        }

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

        /* 图文详情区块 */
        .hwo3t-feature-block {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
            min-width: 0;
        }

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

        .hwo3t-feature-content {
            flex: 1;
            min-width: 320px;
        }

        .hwo3t-feature-image {
            flex: 1;
            min-width: 320px;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--hwo3t-shadow);
        }

        .hwo3t-feature-image img {
            width: 100%;
            display: block;
            transition: transform 0.5s ease;
        }

        .hwo3t-feature-image:hover img {
            transform: scale(1.05);
        }

        .hwo3t-feature-content h2 {
            font-size: 2rem;
            margin-bottom: 24px;
        }

        .hwo3t-tag {
            display: inline-block;
            padding: 4px 12px;
            background: var(--hwo3t-primary);
            color: var(--hwo3t-white);
            border-radius: 4px;
            font-size: 14px;
            margin-bottom: 16px;
        }

        /* 资讯/FAQ区块 */
        .hwo3t-faq-section {
            background: #fff;
            padding: 96px 24px;
        }

        .hwo3t-faq-container {
            max-width: 900px;
            margin: 0 auto;
        }

        .hwo3t-faq-item {
            border-bottom: 1px solid #f0f0f0;
            padding: 24px 0;
        }

        .hwo3t-faq-question {
            font-size: 1.125rem;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .hwo3t-faq-answer {
            margin-top: 16px;
            color: var(--hwo3t-text-sub);
            display: none;
        }

        /* 页脚 */
        .hwo3t-footer {
            background: #1d1d1f;
            color: #f5f5f7;
            padding: 80px 24px 40px;
        }

        .hwo3t-footer-grid {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
            flex-wrap: wrap;
        }

        .hwo3t-footer-brand h4 {
            font-size: 20px;
            color: var(--hwo3t-white);
            margin-bottom: 24px;
        }

        .hwo3t-footer-links h5 {
            color: #86868b;
            margin-bottom: 20px;
            font-size: 14px;
            text-transform: uppercase;
        }

        .hwo3t-footer-links ul {
            list-style: none;
        }

        .hwo3t-footer-links li {
            margin-bottom: 12px;
        }

        .hwo3t-footer-links a {
            color: #d2d2d7;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .hwo3t-footer-links a:hover {
            color: var(--hwo3t-primary);
        }

        .hwo3t-copyright {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            padding-top: 32px;
            border-top: 1px solid #333;
            font-size: 12px;
            color: #86868b;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hwo3t-menu {
                display: none; /* 简化演示，手机端通常用汉堡菜单 */
            }
            .hwo3t-nav-container {
                justify-content: center;
            }
            .hwo3t-feature-block {
                flex-direction: column !important;
                gap: 32px;
            }
            .hwo3t-feature-content, .hwo3t-feature-image {
                width: 100%;
                min-width: 0;
            }
        }