/* 自定义样式 */
        @import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');
        
        :root {
            --git-orange: #f05032;
            --git-dark: #333333;
            --git-light: #f5f5f5;
        }
        
        body {
            font-family: 'Noto Sans SC', sans-serif;
            scroll-behavior: smooth;
        }
        
        .bg-git-orange {
            background-color: var(--git-orange);
        }
        
        .text-git-orange {
            color: var(--git-orange);
        }
        
        .border-git-orange {
            border-color: var(--git-orange);
        }
        
        .btn-git {
            background-color: var(--git-orange);
            color: white;
            transition: all 0.3s ease;
        }
        
        .btn-git:hover {
            background-color: #d43a1f;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(240, 80, 50, 0.3);
        }
        
        .btn-outline-git {
            border-color: var(--git-orange);
            color: var(--git-orange);
            transition: all 0.3s ease;
        }
        
        .btn-outline-git:hover {
            background-color: var(--git-orange);
            color: white;
        }
        
        .feature-card {
            transition: all 0.3s ease;
            border-bottom: 3px solid transparent;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            border-bottom: 3px solid var(--git-orange);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
        }
        
        .sticky-download {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 1000;
            transition: all 0.3s ease;
        }
        
        .sticky-download:hover {
            transform: scale(1.05);
        }
        
        .download-qr-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            justify-content: center;
            align-items: center;
        }
        
        .download-qr-content {
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            text-align: center;
            max-width: 90%;
            width: 350px;
        }
        
        .close-modal {
            position: absolute;
            top: 15px;
            right: 20px;
            font-size: 24px;
            cursor: pointer;
            color: #999;
        }
        
        .close-modal:hover {
            color: #333;
        }
        
        .timeline-item {
            position: relative;
            padding-left: 30px;
            margin-bottom: 20px;
        }
        
        .timeline-item:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: 2px;
            background-color: #e5e7eb;
        }
        
        .timeline-item:after {
            content: '';
            position: absolute;
            left: -4px;
            top: 0;
            height: 10px;
            width: 10px;
            border-radius: 50%;
            background-color: var(--git-orange);
        }
        
        .comparison-table th {
            background-color: #f9fafb;
            font-weight: 600;
        }
        
        .comparison-table tr:nth-child(even) {
            background-color: #f9fafb;
        }
        
        .comparison-table td:first-child {
            font-weight: 600;
        }
        
        .faq-item {
            border-bottom: 1px solid #e5e7eb;
        }
        
        .faq-question {
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s ease;
        }
        
        .faq-question:hover {
            color: var(--git-orange);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .faq-answer.active {
            max-height: 500px;
            padding-top: 15px;
        }
        
        .star-rating {
            color: #fbbf24;
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .sticky-download {
                bottom: 20px;
                right: 20px;
            }
            
            .download-qr-content {
                padding: 20px;
            }
        }
        
        @media (max-width: 640px) {
            .sticky-download {
                bottom: 15px;
                right: 15px;
            }
        }