/* 全局基础样式 */
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: #333;
            line-height: 1.7;
        }
        .banner{
            width: 100%;
            margin: 0 auto;
        }
        /* 滚动进场动画（仅初次触发） */
        .fade-in-once {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in-once.animated {
            opacity: 1;
            transform: translateY(0);
        }

        /* Hero Banner 区域 */
        .hero-banner {
            position: relative;
            height: 450px;
            background: url('https://images.unsplash.com/photo-1552519507-da3b142c6e3d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            display: flex;
            align-items: center;
        }
        .hero-banner::after {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.4);
        }
        .hero-content {
            position: relative;
            z-index: 1;
        }
        .tag-label {
            display: inline-block;
            background: rgba(255,255,255,0.2);
            border: 1px solid white;
            border-radius: 2rem;
            padding: 0.3rem 1rem;
            font-size: 0.85rem;
            margin-bottom: 1rem;
        }
        .hero-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .hero-desc {
            font-size: 1.1rem;
            opacity: 0.9;
        }

        /* 手机展示区 */
        .phone-showcase {
            margin: 4rem 0;
        }
        .phone-img {
            max-width: 200px;
            margin: 0 auto;
            display: block;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        /* 引言引用 */
        .quote-section {
            margin: 3rem 0;
            padding: 2rem 0;
            border-top: 1px solid #eee;
            border-bottom: 1px solid #eee;
        }
        .quote-text {
            width: 100%;
            height: auto;
            font-size: 1.1rem;
            font-style: italic;
            color: #555;
            position: relative;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
        }
     
        .quote-text img{
            width: 2.5rem;
            height: 2.5rem;
        }
        .quote-text div{
            width: 90%;
            height: 2.5rem;
            margin: 0.5rem auto;
        }
        .quote-text img:nth-child(1){
            margin-right: 5px;
            position: absolute;
            top: 0;
            left: 0;
        }
        .quote-text img:nth-child(3){
            margin-left: 5px;
            position: absolute;
            bottom: 0;
            right: 0;
        }
        /* 功能卡片 */
        .feature-card {
            background: #f8f9fa;
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1rem;
        }
        .feature-card h5 {
            font-weight: 600;
            margin-bottom: 0.8rem;
        }
        .feature-card ul {
            font-size: 0.9rem;
            color: #666;
            padding-left: 1.2rem;
        }

        /* 成果截图区 */
        .screenshot-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .screenshot-item {
            background: #f8f9fa;
            border-radius: 12px;
            overflow: hidden;
        }
        .screenshot-item img {
            width: 100%;
            height: auto;
        }

        /* 视频预览区 */
        .video-preview {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            margin: 2rem 0;
        }
        .video-preview img {
            width: 100%;
        }
        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background: rgba(255,255,255,0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #333;
            font-size: 1.5rem;
        }

        /* 标签和技术栈 */
        .tag-badges .badge {
            margin: 0.3rem;
            padding: 0.5rem 1rem;
            border-radius: 2rem;
            font-size: 0.85rem;
            background: #fff !important;
            border: 1px solid #FF2200;
            color: #FF2200 !important;
        }
        .tech-logos {
            display: flex;
            gap: 2rem;
            align-items: center;
            margin-top: 1rem;
        }
        .tech-logos img {
            display: block;
            height: 2.5rem;
            margin: 0 auto;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .hero-banner {
                height: 350px;
            }
            .hero-title {
                font-size: 1.8rem;
            }
            .phone-img {
                max-width: 150px;
            }
            .quote-text {
                font-size: 1rem;
                padding: 0 1rem;
            }
        }