:root {
            --primary: #4ea6ff;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
            background: #000;
            color: #fff;
            line-height: 1.4;
            overflow-x: hidden;
        }
        
        .mobile-wrap {
            max-width: 750px;
            margin: 0 auto;
            position: relative;
        }
        
        /* 顶部导航 */
        .dow-nav {
            position: fixed;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100%;
            max-width: 750px;
            height: 90px;
            background: url("../img/bg1.jpg") center/cover no-repeat;
            z-index: 99;
            display: flex;
            align-items: center;
            padding: 0 10px;
        }
        
        .dow-nav-logo {
            display: flex;
            align-items: center;
            flex: 1;
        }
        
        .dow-nav-logo img {
            width: 43px;
            height: 43px;
            margin-right: 8px;
        }
        
        .dow-nav-text1 {
            font-size: 13px;
            font-weight: bold;
            line-height: 1.2;
        }
        
        .dow-nav-text2 {
            font-size: 12px;
            color: #4ea6ff;
        }
        
        .dow-nav-but {
            background: linear-gradient(to bottom, #4ea6ff, #236cf0);
            box-shadow: 0 0 8px rgba(78, 166, 255, 0.6);
            color: #fff;
            border: none;
            border-radius: 36px;
            height: 36px;
            width: 87px;
            font-size: 14px;
            font-weight: bold;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            animation: pulse 1.2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(0.95); }
        }
        
        /* 内容区 */
        .downssa {
            margin-top: 100px;
            padding-bottom: 180px;
        }
        
        img {
            width: 100%;
            display: block;
        }
        
        /* 轮播 */
        .carousel {
            position: relative;
            overflow: hidden;
            margin: 15px 0;
        }
        
        .slides {
            display: flex;
            transition: transform 0.5s ease-in-out;
            width: 100%;
        }
        
        .slide {
            flex: 0 0 100%;
        }
        
        .slide img {
            width: 100%;
            height: auto;
            display: block;
        }
        
        .dots {
            position: absolute;
            bottom: 12px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 8px;
            z-index: 10;
        }
        
        .dot {
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: rgba(255,255,255,0.6);
            transition: all 0.3s;
        }
        
        .dot.active {
            background: #fff;
            transform: scale(1.3);
        }
        
        /* 底部固定栏 */
        .dow-nav-wrapper {
            position: fixed;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100%;
            max-width: 750px;
            height: 120px;
            background: url("../img/bg2.jpg") center/cover no-repeat;
            z-index: 99;
        }
        
        .dow-nav-foot {
            padding: 12px 15px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .dow-nav-buts,
        .dow-nav-wybuts {
            flex: 1;
            height: 48px;
            border-radius: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: bold;
            text-decoration: none;
            color: #fff;
        }
        
        .dow-nav-buts {
            background: linear-gradient(to bottom, #4ea6ff, #236cf0);
			animation: pulse 1.2s infinite;
        }
        
        .dow-nav-wybuts {
            background: #4ea6ff;
            background: linear-gradient(to bottom, #4ea6ff, #236cf0);
        }
        
        /* 客服 */
        .kf-link {
            position: fixed;
            bottom: 420px;
            right: 15px;
            width: 55px;
            z-index: 99;
        }
        
        /* 加载遮罩 */
        .load {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.9);
            z-index: 10000;
            align-items: center;
            justify-content: center;
        }