* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }
        body {
            background-color: #ffffff;
            color: #333333;
        }
        /* 导航栏 */
        .A9-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 40px;
            background-color: #ffffff;
            border-bottom: 1px solid #f0f0f0;
        }
        .A9-header-left {
            display: flex;
            align-items: center;
            gap: 30px;
        }
        .A9-logo {
            font-size: 20px;
            font-weight: bold;
            color: #0066cc;
        }
        .A9-nav-links {
            display: flex;
            gap: 25px;
        }
        .A9-nav-links a {
            text-decoration: none;
            color: #333333;
            font-size: 14px;
        }
        .A9-header-right {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .A9-header-right a {
            text-decoration: none;
            color: #333333;
            font-size: 14px;
        }
        /* 侧边栏 */
        .A9-sidebar {
            position: fixed;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .A9-sidebar-item {
            background-color: #0066cc;
            color: white;
            padding: 10px 5px;
            writing-mode: vertical-rl;
            text-orientation: mixed;
            font-size: 12px;
            border-radius: 0 4px 4px 0;
        }
        /* 主内容区 */
        .A9-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 20px;
        }
        .A9-hero {
            text-align: center;
            margin-bottom: 50px;
        }
        .A9-hero h1 {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .A9-hero p {
            font-size: 14px;
            color: #666666;
            margin-bottom: 20px;
        }
        .A9-hero-buttons {
            display: flex;
            gap: 10px;
            justify-content: center;
        }
        .A9-btn-primary {
            background-color: #0066cc;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }
        .A9-btn-outline {
            background-color: white;
            color: #0066cc;
            border: 1px solid #0066cc;
            padding: 10px 20px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }
        /* 专区标题 */
        .A9-section-title {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 15px;
        }
        .A9-section-desc {
            font-size: 14px;
            color: #666666;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .A9-section-desc a {
            color: #0066cc;
            text-decoration: none;
            font-size: 12px;
        }
        /* 卡片布局 —— 已美化边框 */
        .A9-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 60px;
        }
        .A9-card {
            border: 1px solid #e8e8e8;
            border-radius: 12px;
            padding: 20px;
            background-color: white;
            box-shadow: 0 2px 12px rgba(0, 102, 204, 0.06);
            transition: all 0.3s ease;
        }
        .A9-card:hover {
            border-color: #0066cc;
            box-shadow: 0 4px 16px rgba(0, 102, 204, 0.15);
            transform: translateY(-3px);
        }
        .A9-card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }
        .A9-card-title {
            font-size: 16px;
            font-weight: 600;
        }
        .A9-card-badge {
            background-color: #ff4d4f;
            color: white;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 12px;
        }
        .A9-card-price {
            text-align: right;
            margin-bottom: 20px;
        }
        .A9-price {
            font-size: 24px;
            font-weight: 600;
            color: #ff4d4f;
        }
        .A9-price-original {
            font-size: 12px;
            color: #999999;
            text-decoration: line-through;
            margin-left: 5px;
        }
        .A9-price-desc {
            font-size: 12px;
            color: #666666;
        }
        .A9-card-specs {
            font-size: 12px;
            color: #666666;
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .A9-card-specs span {
            display: block;
        }
        .A9-card-actions {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .A9-btn-small {
            background-color: #ff7d00;
            color: white;
            border: none;
            padding: 6px 12px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 12px;
        }
        .A9-card-link {
            font-size: 12px;
            color: #0066cc;
            text-decoration: none;
        }
        /* 独享资源区 */
        .A9-dedicated-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 20px;
            margin-bottom: 60px;
        }
        .A9-dedicated-card {
            border: 1px solid #f0f0f0;
            border-radius: 8px;
            padding: 20px;
            background-color: white;
        }
        .A9-dedicated-title {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 15px;
        }
        .A9-dedicated-specs {
            font-size: 12px;
            color: #666666;
            line-height: 1.8;
            margin-bottom: 15px;
        }
        .A9-dedicated-select {
            width: 100%;
            padding: 6px;
            margin-bottom: 15px;
            border: 1px solid #f0f0f0;
            border-radius: 4px;
            font-size: 12px;
        }
        .A9-dedicated-price {
            text-align: center;
            margin-bottom: 15px;
        }
        .A9-dedicated-price .A9-price {
            font-size: 20px;
        }
        .A9-dedicated-price .A9-price-original {
            font-size: 12px;
        }
        .A9-dedicated-badge {
            background-color: #ff7d00;
            color: white;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 12px;
            display: inline-block;
            margin-bottom: 10px;
        }
        .A9-btn-buy {
            width: 100%;
            background-color: #0066cc;
            color: white;
            border: none;
            padding: 10px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
        }
        /* 页脚 */
        .A9-footer {
            background-color: #f8f9fa;
            padding: 40px 20px;
            border-top: 1px solid #f0f0f0;
        }
        .A9-footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr 1fr 1fr;
            gap: 30px;
        }
        .A9-footer-column h4 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 15px;
        }
        .A9-footer-column ul {
            list-style: none;
        }
        .A9-footer-column ul li {
            margin-bottom: 8px;
        }
        .A9-footer-column ul li a {
            text-decoration: none;
            color: #666666;
            font-size: 12px;
        }
        .A9-footer-bottom {
            max-width: 1200px;
            margin: 30px auto 0;
            padding-top: 20px;
            border-top: 1px solid #f0f0f0;
            text-align: center;
            font-size: 12px;
            color: #999999;
        }
        .A9-footer-bottom p {
            margin-bottom: 10px;
        }
        .A9-footer-qrcodes {
            display: flex;
            gap: 20px;
            justify-content: center;
            margin-top: 15px;
        }
        .A9-qrcode {
            text-align: center;
        }
        .A9-qrcode img {
            width: 80px;
            height: 80px;
            margin-bottom: 5px;
        }
        .A9-qrcode p {
            font-size: 12px;
            color: #666666;
        }