:root {
            --hwo3t-primary: #ff6600;
            --hwo3t-primary-hover: #e55c00;
            --hwo3t-bg-light: #f8f9fa;
            --hwo3t-text-dark: #1d1d1f;
            --hwo3t-text-gray: #86868b;
            --hwo3t-white: #ffffff;
            --hwo3t-glass: rgba(255, 255, 255, 0.8);
            --hwo3t-shadow: 0 8px 30px rgba(0,0,0,0.08);
            --hwo3t-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            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-dark);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局基础 */
        .hwo3t-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 32px;
            width: 100%;
        }

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

        .hwo3t-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            min-width: 0;
        }

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

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

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

        .hwo3t-nav-menu li {
            min-width: 0;
        }

        .hwo3t-nav-menu a {
            text-decoration: none;
            color: var(--hwo3t-text-dark);
            font-size: 15px;
            font-weight: 500;
            transition: var(--hwo3t-transition);
            padding: 8px 4px;
            position: relative;
        }

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

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

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

        /* Hero 区：非对称画廊布局 */
        .hwo3t-hero {
            padding-top: 140px;
            padding-bottom: 96px;
            background: linear-gradient(135deg, #fff 0%, #fff5f0 100%);
            overflow: hidden;
        }

        .hwo3t-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
            min-width: 0;
        }

        .hwo3t-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .hwo3t-hero-tag {
            display: inline-block;
            background: rgba(255, 102, 0, 0.1);
            color: var(--hwo3t-primary);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .hwo3t-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -0.02em;
        }

        .hwo3t-hero-subtitle {
            font-size: clamp(1.1rem, 1vw + 0.5rem, 1.3rem);
            color: var(--hwo3t-text-gray);
            margin-bottom: 40px;
            max-width: 540px;
        }

        .hwo3t-hero-visual {
            flex: 1.2;
            min-width: 320px;
            position: relative;
        }

        .hwo3t-skin-stack {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            transform: rotate(-5deg);
        }

        .hwo3t-skin-card-hero {
            background: var(--hwo3t-white);
            border-radius: 16px;
            padding: 12px;
            box-shadow: var(--hwo3t-shadow);
            transition: var(--hwo3t-transition);
        }

        .hwo3t-skin-card-hero:nth-child(even) {
            transform: translateY(40px);
        }

        .hwo3t-skin-card-hero:hover {
            transform: translateY(-10px) scale(1.05);
            z-index: 10;
        }

        .hwo3t-skin-card-hero img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            display: block;
        }

        /* 场景化智能解决方案 */
        .hwo3t-scenarios {
            padding: 96px 0;
            background: var(--hwo3t-white);
        }

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

        .hwo3t-section-title {
            font-size: clamp(2rem, 3vw, 2.5rem);
            margin-bottom: 16px;
        }

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

        .hwo3t-scenario-card {
            background: var(--hwo3t-bg-light);
            border-radius: 24px;
            padding: 40px;
            transition: var(--hwo3t-transition);
            border: 1px solid transparent;
            min-width: 0;
        }

        .hwo3t-scenario-card:hover {
            background: var(--hwo3t-white);
            border-color: var(--hwo3t-primary);
            box-shadow: var(--hwo3t-shadow);
            transform: translateY(-5px);
        }

        .hwo3t-scenario-type {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--hwo3t-primary);
            display: flex;
            align-items: center;
            gap: 12px;
        }

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

        .hwo3t-capability-list li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 15px;
            color: var(--hwo3t-text-dark);
            word-break: break-word;
        }

        .hwo3t-capability-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--hwo3t-primary);
            font-weight: bold;
        }

        /* 皮肤展示区块（动态内容） */
        .hwo3t-skin-gallery {
            padding: 96px 0;
        }

        .hwo3t-gallery-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .hwo3t-skin-item {
            background: var(--hwo3t-white);
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.04);
            transition: var(--hwo3t-transition);
            min-width: 0;
        }

        .hwo3t-skin-item:hover {
            box-shadow: var(--hwo3t-shadow);
        }

        .hwo3t-skin-img-box {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #eee;
            position: relative;
        }

        .hwo3t-skin-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--hwo3t-transition);
        }

        .hwo3t-skin-item:hover .hwo3t-skin-img-box img {
            transform: scale(1.1);
        }

        .hwo3t-skin-info {
            padding: 20px;
        }

        .hwo3t-skin-name {
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 8px;
        }

        .hwo3t-skin-meta {
            display: flex;
            justify-content: space-between;
            font-size: 13px;
            color: var(--hwo3t-text-gray);
        }

        .hwo3t-download-btn {
            display: inline-block;
            margin-top: 16px;
            padding: 8px 20px;
            background: var(--hwo3t-primary);
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            transition: var(--hwo3t-transition);
        }

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

        /* 页脚 */
        .hwo3t-footer {
            background: var(--hwo3t-text-dark);
            color: var(--hwo3t-white);
            padding: 80px 0 40px;
        }

        .hwo3t-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 64px;
        }

        .hwo3t-footer-brand {
            flex: 1.5;
            min-width: 280px;
        }

        .hwo3t-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--hwo3t-white);
        }

        .hwo3t-footer-brand p {
            color: rgba(255,255,255,0.6);
            max-width: 320px;
        }

        .hwo3t-footer-links {
            flex: 1;
            min-width: 160px;
        }

        .hwo3t-footer-links h4 {
            font-size: 16px;
            margin-bottom: 24px;
            color: var(--hwo3t-white);
        }

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

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

        .hwo3t-footer-links a {
            color: rgba(255,255,255,0.6);
            text-decoration: none;
            transition: var(--hwo3t-transition);
            font-size: 14px;
        }

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

        .hwo3t-footer-bottom {
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 13px;
            color: rgba(255,255,255,0.4);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .hwo3t-nav-menu {
                display: none; /* 简化移动端，实际开发中应有汉堡菜单 */
            }
            .hwo3t-hero {
                padding-top: 100px;
                text-align: center;
            }
            .hwo3t-hero-content {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            .hwo3t-hero-grid {
                flex-direction: column;
            }
            .hwo3t-skin-stack {
                transform: rotate(0);
                margin-top: 40px;
            }
            .hwo3t-container {
                padding: 0 20px;
            }
        }