:root {
            /* 基础配置 */
            --biz-width: 1300px;
            --transition-smooth: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
            --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1); 
            --ease-silk: cubic-bezier(0.16, 1, 0.3, 1);
            --ease-pop: cubic-bezier(0.34, 1.56, 0.64, 1);

            /* 颜色系统 */
            --primary-white: #ffffff;
            --bg-base: #ffffff;
            --sticky-bg: rgba(255, 255, 255, 0.95);
            --btn-bg: rgba(0, 0, 0, 0.8);
            
            --liquid-1: #f4f0ff;
            --liquid-2: #f0f7ff;
            --liquid-3: #fff3f9;
            
            --text-main: #1a1a3d;
            --text-sub: #7d7d96;
            --accent-pink: #ffb8f2;
            --accent-purple: #7b61ff;
			/* ... 现有配置 ... */
			    --primary-accent: #9752ec; /* 补全缺失变量 */
			    --text-secondary: #7d7d96; /* 补全缺失变量 */
			    
			    --transition-smooth: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
			    /* ... 其他变量保持不变 ... */
        }

        /* --- 基础重置 --- */
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif; 
            background: var(--bg-base); 
            overflow-x: hidden; 
            line-height: 1.5; 
            color: var(--text-main);
        }
        a { text-decoration: none; transition: 0.3s; }

        /* --- 导航栏 --- */
        header {
            position: fixed; top: 0; left: 0; width: 100%; height: 80px;
            display: flex; align-items: center; justify-content: space-between;
            padding: 0 5%; z-index: 1000; transition: var(--transition-smooth);
            background: transparent;
        }
        header.is-sticky { 
            background: var(--sticky-bg); 
            height: 64px; 
            backdrop-filter: blur(15px); 
        }

        .logo { font-size: 22px; font-weight: bold; color: var(--primary-white); display: flex; align-items: center; gap: 10px; }
        .logo-icon {
            width: 32px; height: 32px; border-radius: 8px;
            background: url('../images/logo.png') center/cover;
        }
        header.is-sticky .logo { color: #333; }

        .nav-links { display: flex; gap: 48px; margin-left: auto; margin-right: 110px; }
        .nav-links a { color: var(--primary-white); font-size: .875rem; position: relative; }
        .nav-links a::after { 
            content: ''; position: absolute; bottom: -5px; left: 50%; width: 0; height: 2px; 
            background: rgb(151, 82, 236); transition: 0.3s; transform: translateX(-50%); 
        }
        header.is-sticky .nav-links a { color: #333; }
        header.is-sticky .nav-links a::after { background: #9752ec; }
        .nav-links a:hover::after { width: 100%; }

        .lang-container { position: relative; cursor: pointer; }
        .lang-switch { color: var(--primary-white); font-size: .875rem; padding: 10px; }
        header.is-sticky .lang-switch { color: #333; }
        .lang-dropdown {
            position: absolute; top: 100%; right: 0; width: 120px; background: rgba(255,255,255,0.95);
            border-radius: 12px; opacity: 0; visibility: hidden; transform: translateY(10px);
            transition: 0.3s; box-shadow: 0 10px 30px rgba(0,0,0,0.1); overflow: hidden;
        }
        .lang-container:hover .lang-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
        .lang-dropdown a { display: block; padding: 12px 20px; color: #333; font-size: 14px; text-align: center;}
        .lang-dropdown a:hover { background: #f0f0f0; }

        /* --- Hero Section --- */
        .hero {
            position: relative; width: 100%; height: 100vh; min-height: 700px;
            background: #000; display: flex; align-items: center; padding: 0 10%; overflow: hidden;
        }
        .hero-video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
        .hero::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to right, rgba(0,0,0,0.5), transparent); z-index: 1; }

        .hero-content { position: relative; z-index: 2; max-width: 600px; opacity: 0; transform: translateY(50px); animation: slideUp 1s forwards 0.2s; }
        .hero-content h1 { font-size: 56px; color: #fff; line-height: 1.2; margin-bottom: 20px; }
        .hero-content p { font-size: 18px; color: rgba(255,255,255,0.9); margin-bottom: 40px; }

        .download-group { display: flex; gap: 15px; flex-wrap: wrap; }
        
		
		/* 确保父级容器是定位基准 */
		.btn-download {
		    position: relative; /* 必须 */
		    background: var(--btn-bg); 
		    color: #fff; 
		    padding: 10px 20px; 
		    border-radius: 12px;
		    display: flex; 
		    align-items: center; 
		    gap: 12px; 
		    border: 1px solid rgba(255,255,255,0.1);
		    transition: all 0.3s ease;
		}
		
		/* 二维码弹出层初始状态 */
		.qr-popup-download {
		    position: absolute;
		    bottom: calc(100% + 15px); /* 出现在按钮上方 */
		    left: 50%;
		    transform: translateX(-50%) translateY(10px);
		    background: #fff;
		    padding: 12px;
		    border-radius: 16px;
		    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
		    display: flex;
		    flex-direction: column;
		    align-items: center;
		    gap: 8px;
		    opacity: 0;
		    visibility: hidden;
		    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
		    z-index: 100;
		}
		
		/* 弹出层底部小箭头 */
		.qr-popup-download::after {
		    content: '';
		    position: absolute;
		    top: 100%;
		    left: 50%;
		    transform: translateX(-50%);
		    border-style: solid;
		    border-width: 8px 8px 0 8px;
		    border-color: #fff transparent transparent transparent;
		}
		
		/* 悬浮激活状态 */
		.btn-download:hover .qr-popup-download {
		    opacity: 1;
		    visibility: visible;
		    transform: translateX(-50%) translateY(0);
		}
		
		/* 二维码图片及文字样式 */
		.qr-popup-download img {
		    width: 130px;  /* 根据需求调整尺寸 */
		    height: 130px;
		    border-radius: 8px;
		    display: block;
		}
		
		.qr-popup-download span {
		    font-size: 12px;
		    color: #333;
		    font-weight: 600;
		    white-space: nowrap;
		}
		
		/* 移动端适配：隐藏悬浮二维码防止干扰点击 */
		@media (max-width: 1024px) {
		    .qr-popup-download {
		        display: none !important;
		    }
		}
		
		
		
		
        .btn-text span { display: block; font-size: 10px; opacity: 0.8; }
        .btn-text strong { font-size: 14px; }

        .scroll-indicator { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 10; cursor: pointer; text-align: center; color: #fff; }
        .mouse-icon-custom { width: 26px; height: 40px; border: 2px solid #fff; border-radius: 15px; position: relative; margin: 0 auto 8px; }
        .mouse-icon-custom::before { 
            content: ''; position: absolute; top: 8px; left: 50%; width: 4px; height: 4px; 
            background: #fff; margin-left: -2px; border-radius: 50%; animation: mouseScroll 1.8s infinite; 
        }

        /* --- 滚动内容区域 --- */
        .global-liquid-bg {
            position: fixed; inset: 0; z-index: -2; filter: blur(140px); opacity: 0.65; overflow: hidden;
        }
        .blob { position: absolute; border-radius: 50%; animation: move-liquid 45s infinite alternate ease-in-out; }
        .blob-1 { width: 75vw; height: 75vw; background: var(--liquid-1); top: -15%; left: -10%; }
        .blob-2 { width: 65vw; height: 65vw; background: var(--liquid-2); bottom: -10%; right: -5%; animation-delay: -5s; }
        .blob-3 { width: 55vw; height: 55vw; background: var(--accent-pink); top: 25%; left: 20%; animation-duration: 55s; opacity: 0.3; }

        .section {
            width: 100%; max-width: 1200px; height: 100vh; margin: 0 auto;
            display: flex; align-items: center; justify-content: space-between;
            padding: 0 50px; position: relative;
        }
        .section.is-reversed { flex-direction: row-reverse; }

        /* --- 动画逻辑 --- */
        .visual-area { 
            position: relative; flex: 1.2; display: flex; justify-content: center; align-items: center; 
            opacity: 0;
            transform: translateY(40px) scale(0.98);
            transition: opacity 1.2s var(--ease-out-expo), transform 1.2s var(--ease-out-expo);
        }
        .section.active .visual-area {
            opacity: 1;
            transform: translateY(0) scale(1);
        }

        .text-area { 
            flex: 1; padding: 0 70px; 
            opacity: 0; 
            transition: opacity 1s var(--ease-out-expo), transform 1s var(--ease-out-expo);
            transform: translateX(60px) translateY(20px); 
        }
        .is-reversed .text-area { transform: translateX(-60px) translateY(20px); }
        .section.active .text-area { 
            opacity: 1; 
            transform: translateX(0) translateY(0) !important; 
            transition-delay: 0.2s; 
        }

        /* 样机图片样式 */
        .phone-mockup {
            width: 285px; height: 590px; 
            object-fit: cover;
            backdrop-filter: blur(30px); border: 6px solid #fff; border-radius: 48px;
            box-shadow: 0 25px 80px rgba(0,0,0,0.04); z-index: 2;
            background: #fff; /* 默认底色 */
        }

        /* 装饰图片通用样式 */
        .decor { position: absolute; z-index: 10; will-change: transform; pointer-events: none; }
        .decor img { width: 100%; height: 100%; object-fit: contain; }
        
        .decor-float { animation: floating 4s ease-in-out infinite alternate; }
        .decor-pop { opacity: 0; transform: scale(0.4); transition: all 0.8s var(--ease-pop); }
        .section.active .decor-pop { opacity: 1; transform: scale(1); transition-delay: 0.4s; }

        .tag-bg { font-weight: 900;  font-style: italic; margin-bottom: -10px; font-size: 2rem; color: #ffb8f2;}
        .title { font-size: 64px; font-weight: bold; margin-bottom: 25px; position: relative; display: inline-block; color: #091451; }
        .title::after { 
            content: ""; position: absolute; bottom: -6px; left: -24px; width: 120px; height: 52px;  
            background: url(https://www.tataxingqiu.com/assets/text-bg5-9bef9f5c.png) no-repeat top left;
            background-size: 120px 52px; opacity: 0.4; z-index: -1; 
        }
        .desc { font-size: .975rem;  max-width: 480px; color: #7441af;}

        /* 特殊位置图片样式 */
        .person-img {
            bottom: 0; left: 50%; width: 250px; height: 310px;
            display: flex; align-items: flex-end; justify-content: center;
            transform: translate(-50%, 0) scale(0.4);
            transition: all 0.9s var(--ease-out-expo);
        }
        .section.active .person-img { transform: translate(-50%, 0) scale(1); transition-delay: 0.5s; }
		
        .person-img2 {top: 50%;
    left: 14%;
    width: 120px;}
		.person-img3 { top: 44%;
    right: 14%;
    width: 120px;}

        /* --- 页脚 --- */
        .line-footer { background: #fff; padding: 40px 0 60px; border-top: 1px solid #eee; width: 100%; margin-top: auto; }
        .footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .footer-top-row { display: flex; justify-content: space-between; align-items: center; padding-bottom: 30px; border-bottom: 1px solid #f2f2f2; margin-bottom: 30px; }
        
        .download-links { display: flex; align-items: center; gap: 25px; }
        .footer-logo { width: 36px; height: 36px; margin-right: 10px; border-radius: 8px; }
        .store-item { display: flex; align-items: center; gap: 8px; color: #333; font-size: 14px; }
        .store-item:hover { color: var(--accent-purple); }

        .popover-container { position: relative; }
        .popover-trigger { background: #f5f5f5; padding: 10px 22px; border-radius: 30px; font-size: 14px; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 15px; }
        .popover-menu {
            position: absolute; bottom: calc(100% + 12px); right: 0; width: 200px; background: #f5f5f5;
            border-radius: 18px; padding: 12px 0; box-shadow: 0 15px 40px rgba(0,0,0,0.08);
            opacity: 0; visibility: hidden; transform: translateY(10px); transition: 0.3s; z-index: 100;
        }
        .popover-container:hover .popover-menu { opacity: 1; visibility: visible; transform: translateY(0); }
        .menu-link { display: flex; justify-content: space-between; padding: 10px 20px; color: #666; font-size: 13px; }
        .menu-link:hover { color: #000; background: rgba(0,0,0,0.02); }

        .footer-bottom-row { display: flex; justify-content: space-between; align-items: center; }
        .legal-group { display: flex; align-items: center; gap: 24px; list-style: none; font-size: 13px; }
        .copyright { color: #bbb; }
        .legal-link { color: #333; font-weight: 500; }
        

		
		        /* 法律信息双行排列 */
		        .footer-bottom-row { display: flex; justify-content: space-between; align-items: center; }
		        .legal-stack { display: flex; flex-direction: column; gap: 12px; }
		        .legal-row { display: flex; align-items: center; gap: 20px; list-style: none; font-size: 13px; color: #999; }
		        .legal-link { color: #333; font-weight: 500; }
		        .legal-link:hover { color: var(--accent-purple); }
		
		
		
		
		.social-icons {
		    display: flex;
		    gap: 24px;
		    font-size: 20px;
		}
		
		.icon-wrapper {
		    position: relative; /* 关键：用于定位二维码悬浮窗 */
		    display: flex;
		    justify-content: center;
		}
		
		.icon-wrapper a {
		    color: #333;
		    transition: 0.3s;
		}
		
		.icon-wrapper:hover a {
		    color: var(--accent-purple); /* 悬浮时变色 */
		}
		
		/* 二维码悬浮窗样式 */
		.qr-popup {
		    position: absolute;
		    bottom: 45px; /* 距离图标的垂直距离 */
		    background: #fff;
		    padding: 12px;
		    border-radius: 16px;
		    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
		    display: flex;
		    flex-direction: column;
		    align-items: center;
		    gap: 8px;
		    opacity: 0;
		    visibility: hidden;
		    transform: translateY(10px);
		    transition: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
		    z-index: 9999;
		}
		
		/* 小三角提示箭头 */
		.qr-popup::after {
		    content: '';
		    position: absolute;
		    bottom: -8px;
		    left: 50%;
		    transform: translateX(-50%);
		    border-style: solid;
		    border-width: 8px 8px 0 8px;
		    border-color: #fff transparent transparent transparent;
		}
		
		/* 悬浮显示 */
		.icon-wrapper:hover .qr-popup {
		    opacity: 1;
		    visibility: visible;
		    transform: translateY(0);
		}
		
		.qr-popup img {
		    width: 120px; /* 二维码尺寸 */
		    height: 120px;
		    border-radius: 8px;
		}
		
		.qr-popup span {
		    font-size: 12px;
		    color: #666;
		    font-weight: 500;
		}
		
		
		
		/*about*/
		.about
		/* --- 拟态化内容区 --- */
		.content-section {
		    position: relative;
		    max-width: var(--biz-width);
		    margin: 120px auto 100px;
		}
		
		.bg-blob { position: absolute; border-radius: 50%; filter: blur(60px); z-index: -1; animation: float 10s infinite ease-in-out; }
		.blob-1 { width: 300px; height: 300px; background: var(--liquid-1); top: -50px; right: -50px; }
		.blob-2 { width: 400px; height: 400px; background: var(--liquid-2); bottom: -100px; left: -100px; animation-delay: -2s; }
		@keyframes float { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(20px, 30px); } }
		
		/* 拟态玻璃卡片容器 */
		.glass-container {
		    background: rgba(255, 255, 255, 0.4);
		    backdrop-filter: blur(10px);
		    -webkit-backdrop-filter: blur(10px);
		    border: 1px solid rgba(255, 255, 255, 0.6);
		    border-radius: 32px;
		    padding: 60px;
		    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.03);
		    overflow: hidden;
		}
		
		.main-title {
		    font-size: 36px; font-weight: 600; margin-bottom: 40px;
		    background: linear-gradient(90deg, #1a1a3d, #7b61ff);
		    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
		}
		
		/* 视频/文本布局保持环绕 */
		.visual-aside { float: right; width: 380px; margin-left: 50px; margin-bottom: 30px; }
		.video-morphism {
		    width: 100%; aspect-ratio: 16 / 9;
		    background: linear-gradient(135deg, #e0e7ff 0%, #f5f0ff 100%);
		    border-radius: 24px; position: relative; display: flex; align-items: center; justify-content: center;
		    border: 4px solid #fff; box-shadow: 20px 20px 40px rgba(0,0,0,0.06);
		}
		
		.article-text p { font-size: 16px; line-height: 1.9; color: #4a4a68; margin-bottom: 25px; text-align: justify; }
		
		/* --- 新增：联系方式锚点定位区域 --- */
		.contact-area {
		    clear: both; /* 确保在浮动内容下方 */
		    margin-top: 60px;
		    padding-top: 60px;
		    border-top: 1px solid rgba(0,0,0,0.05);
		    scroll-margin-top: 100px; /* 关键：防止头部遮挡 */
		}
		.contact-area h2 { font-size: 24px; margin-bottom: 30px; color: var(--text-main); }
		
		.contact-grid {
		    display: grid;
		    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
		    gap: 25px;
		}
		
		.contact-card {
		    background: rgba(255, 255, 255, 0.5);
		    border: 1px solid rgba(255, 255, 255, 0.8);
		    border-radius: 20px;
		    padding: 24px;
		    display: flex;
		    align-items: center;
		    gap: 15px;
		    transition: all 0.3s ease;
		}
		.contact-card:hover {
		    
			background: #fff; border-color: var(--accent-purple); transform: translateY(-3px); 
		}
		.contact-icon {
		    width: 50px; height: 50px; border-radius: 12px;
		    background: var(--liquid-1);
		    display: flex; align-items: center; justify-content: center;
		    color: var(--accent-purple); font-size: 20px;
		}
		.contact-info h4 { font-size: 14px; color: #888; margin-bottom: 4px; }
		.contact-info p { font-size: 16px; font-weight: 500; color: var(--text-main); }
		
		/* 底部荣誉区 */
		.honor-panel {
		    clear: both; margin-top: 40px; padding-top: 30px;
		    border-top: 1px dashed rgba(123, 97, 255, 0.2);
		    font-size: 14px; color: #7d7d96; display: flex; gap: 15px;
		}
		
		
		/*入驻*/
		.hero3 {
		    height: 52.6vh; 
		    background: url(../images/bg.jpg) no-repeat center 78% / cover;
		    display: flex; 
		    align-items: center; 
		    justify-content: center;
		    position: relative;
		}
		/* 标语图片样式 */
		.slogan-img {
		    max-width: 600px; /* 根据实际图片大小调整 */
		    width: 100%;       /* 移动端自适应 */
		    height: auto;
		    z-index: 2;
		   
			margin-top: 60px;
		}
		
		@keyframes sloganFadeIn {
		    from { opacity: 0; transform: scale(1.05) translateY(10px); }
		    to { opacity: 1; transform: scale(1) translateY(0); }
		}
		
		/* --- 3. 内容区域 (红色框还原 1300px) --- */
		.main-content {
		    padding: 100px 0;
		    background: #fff;
		}
		
		.container-1300 {
		    width: var(--biz-width);
		    max-width: 92%;
		    margin: 0 auto;
		}
		
		/* 文字描述排版优化 */
		.manifesto {
		    text-align: center;
		    max-width: 900px;
		    margin: 0 auto 100px;
		}
		.manifesto p {
		    font-size: 30px;
		    line-height: 1.6;
		    font-weight: 300;
		    color: var(--text-main);
		    letter-spacing: -0.01em;
		}
		.manifesto span {
		    color: var(--primary-accent);
		    font-weight: 600;
		}
		
		/* 入驻要求网格 - 现代卡片式设计 */
		.req-grid {
		    display: grid;
		    grid-template-columns: repeat(3, 1fr);
		    gap: 40px;
		    margin-bottom: 80px;
		}
		
		/* 修复入驻要求卡片的 transition 逻辑 */
		.req-card {
		    background: #fbfbfd;
		    padding: 50px 35px;
		    border-radius: 20px;
		    text-align: left;
		    /* transition 修改为只针对 hover 状态的微调，不影响 reveal 的动画 */
		    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
		    border: 1px solid #f0f0f2;
		}
		.req-card:hover {
		   background: #fff; border-color: var(--accent-purple); transform: translateY(-3px); 
		}
		
		.icon-wrap {
		    font-size: 28px;
		    color: var(--primary-accent);
		    margin-bottom: 25px;
		    display: block;
		}
		
		.req-card h3 {
		    font-size: 22px;
		    font-weight: 600;
		    margin-bottom: 15px;
		    color: var(--text-main);
		}
		
		.req-card p {
		    font-size: 15px;
		    line-height: 1.8;
		    color: var(--text-secondary);
		}
		
		/* 加入按钮 */
		.cta-box { text-align: center; }
		.btn-join {
		    background: var(--text-main);
		    color: #fff;
		    padding: 18px 60px;
		    border-radius: 40px;
		    font-size: 16px;
		    font-weight: 600;
		    border: none;
		    cursor: pointer;
		    transition: 0.3s;
		    letter-spacing: 1px;
		}
		.btn-join:hover {
		    background: var(--primary-accent);
		    transform: scale(1.05);
		    box-shadow: 0 10px 25px rgba(151, 82, 236, 0.3);
		}
		
		/* 优化 reveal 基类 */
		.reveal { 
		    opacity: 0; 
		    transform: translateY(30px); 
		    transition: var(--transition-smooth);
		    will-change: opacity, transform; /* 告诉浏览器提前优化性能 */
		}
		
		.reveal.active { 
		    opacity: 1; 
		    transform: translateY(0); 
		}
		
		/* 响应式 */
		@media (max-width: 1024px) {
		    .req-grid { grid-template-columns: 1fr; }
		    .hero h1 { font-size: 40px; letter-spacing: 8px; }
		    .manifesto p { font-size: 22px; }
		}


        /* --- 动画帧 --- */
        @keyframes slideUp { to { opacity: 1; transform: translateY(0); } }
        @keyframes mouseScroll { 0%, 100% { transform: translateY(0); opacity: 0.4; } 50% { transform: translateY(12px); opacity: 1; } }
        @keyframes floating { from { transform: translateY(0) rotate(0deg); } to { transform: translateY(-30px) rotate(4deg); } }
        @keyframes move-liquid { from { transform: translate(0, 0) scale(1); } to { transform: translate(12%, 18%) scale(1.15); } }
        @keyframes breath-glow { 0%, 100% { transform: scale(1); filter: brightness(1); } 50% { transform: scale(1.08); filter: brightness(1.2); } }
        @keyframes jelly-jump { 0%, 80%, 100% { transform: scale(1, 1); } 85% { transform: scale(1.2, 0.8); } 90% { transform: scale(0.8, 1.2); } }

        /* --- 响应式 --- */
        @media (max-width: 1024px) {
            .nav-links { display: none; }
            .section { flex-direction: column !important; height: auto; padding: 80px 20px; text-align: center; }
            .visual-area { margin-bottom: 40px; }
            .text-area { padding: 0; transform: translateY(30px) !important; }
            .title { font-size: 40px; }
            .footer-top-row { flex-direction: column; gap: 20px; }
            .footer-bottom-row { flex-direction: column; gap: 20px; text-align: center; }
        }