:root {
            --primary: #4A90E2; /* 趣闲赚标志性的柔和浅蓝，营造舒适氛围 */
            --primary-light: #E1F0FF;
            --accent: #FF6B6B; /* 点缀色，用于收益/红包提示 */
            --bg: #E3EDF7; /* 新拟态专属背景色 */
            --text-dark: #2C3E50;
            --text-gray: #7F8C8D;
            --glass: rgba(255, 255, 255, 0.6);
            /* 新拟态阴影系统 */
            --neu-shadow: 9px 9px 16px #d1dbe6, -9px -9px 16px #ffffff;
            --neu-inset: inset 6px 6px 12px #d1dbe6, inset -6px -6px 12px #ffffff;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { 
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background: var(--bg); color: var(--text-dark); line-height: 1.6;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }

        /* 导航：悬浮毛玻璃胶囊 */
        header {
            position: fixed; top: 25px; left: 50%; transform: translateX(-50%);
            width: 92%; max-width: 1100px; padding: 12px 40px;
            background: rgba(255, 255, 255, 0.65); backdrop-filter: blur(20px);
            border-radius: 60px; z-index: 1000; display: flex; justify-content: space-between; align-items: center;
            box-shadow: var(--neu-shadow);
        }
        .logo { font-size: 24px; font-weight: 900; color: var(--primary); letter-spacing: -1px; display: flex; align-items: center; gap: 8px; }
        .nav-links { display: flex; gap: 30px; font-size: 14px; font-weight: 600; }
        .nav-links a { color: var(--text-gray); transition: color .3s; }
        .nav-links a:hover { color: var(--primary); }
        .nav-cta { background: var(--primary); color: #fff; padding: 10px 28px; border-radius: 30px; box-shadow: 4px 4px 8px #d1dbe6, -4px -4px 8px #ffffff; transition: all .3s; border: none; cursor: pointer; }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 6px 6px 12px #d1dbe6, -6px -6px 12px #ffffff; }

        /* 首屏：流体光斑背景 + 凸起拟物主视觉 */
        .hero {
            min-height: 100vh; display: flex; align-items: center; justify-content: center;
            position: relative; padding: 120px 8% 80px;
        }
        /* 流体光斑动效，隐喻"数字桥梁"与生命力 */
        .blob {
            position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4; z-index: 0;
            animation: floatBlob 8s ease-in-out infinite alternate;
        }
        .blob-1 { width: 500px; height: 500px; background: #4A90E2; top: -10%; left: -5%; }
        .blob-2 { width: 400px; height: 400px; background: #a8c0ff; bottom: -10%; right: -5%; animation-delay: 2s; }
        @keyframes floatBlob { 0% { transform: translate(0, 0) scale(1); } 100% { transform: translate(30px, -20px) scale(1.1); } }

        .hero-content { position: relative; z-index: 2; text-align: center; max-width: 900px; }
        .hero-badge {
            display: inline-block; padding: 8px 24px; border-radius: 30px; margin-bottom: 30px;
            font-size: 14px; font-weight: bold; color: var(--primary);
            background: var(--bg); box-shadow: var(--neu-inset);
        }
        .hero-h1 { font-size: clamp(42px, 6vw, 72px); font-weight: 900; line-height: 1.1; margin-bottom: 25px; letter-spacing: -2px; }
        .hero-h1 span { color: var(--primary); position: relative; }
        .hero-desc { font-size: 18px; color: var(--text-gray); margin-bottom: 50px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .hero-actions { display: flex; gap: 25px; justify-content: center; }
        .btn-neu {
            padding: 18px 50px; border-radius: 50px; font-size: 18px; font-weight: 800; border: none; cursor: pointer;
            background: var(--bg); box-shadow: var(--neu-shadow); transition: all .2s;
        }
        .btn-neu:active { box-shadow: var(--neu-inset); }
        .btn-primary-neu { background: var(--primary); color: #fff; box-shadow: 6px 6px 12px rgba(74,144,226,0.3), -6px -6px 12px #ffffff; }

        /* 双轨价值区：斜切分割，解决供需双重诉求 */
        .dual-value {
            padding: 80px 0; display: flex; position: relative;
        }
        .dual-side { flex: 1; padding: 80px 8%; display: flex; flex-direction: column; justify-content: center; }
        .side-earner { background: #fff; clip-path: polygon(0 0, 100% 0, 85% 100%, 0% 100%); }
        .side-publisher { background: var(--bg); padding-left: 12%; }
        .value-icon { font-size: 64px; margin-bottom: 30px; }
        .value-h2 { font-size: 42px; margin-bottom: 20px; font-weight: 900; }
        .value-p { color: var(--text-gray); margin-bottom: 30px; max-width: 400px; }
        .feature-list { list-style: none; }
        .feature-list li { margin-bottom: 15px; display: flex; align-items: center; gap: 12px; font-weight: 600; }
        .check-icon { color: var(--primary); font-weight: bold; }

        /* 任务生态雷达：环形轨道布局 */
        .ecosystem { padding: 120px 8%; text-align: center; }
        .sec-h2 { font-size: 42px; font-weight: 900; margin-bottom: 20px; }
        .sec-sub { color: var(--text-gray); margin-bottom: 80px; font-size: 18px; }
        .orbit-container { position: relative; width: 100%; max-width: 700px; margin: 0 auto; aspect-ratio: 1; }
        .orbit-center {
            position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
            width: 240px; height: 240px; border-radius: 50%; background: var(--bg);
            box-shadow: var(--neu-inset); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 10;
        }
        .orbit-center h3 { font-size: 28px; color: var(--primary); margin-bottom: 5px; }
        .orbit-item {
            position: absolute; width: 140px; padding: 20px; background: #fff; border-radius: 20px;
            box-shadow: var(--neu-shadow); text-align: center; transition: transform .3s; cursor: pointer;
        }
        .orbit-item:hover { transform: scale(1.1) !important; z-index: 20; }
        /* 环形坐标点分布 */
        .orb-1 { top: 5%; left: 50%; transform: translateX(-50%); } /* 12点钟 */
        .orb-2 { top: 25%; right: 5%; } /* 2点钟 */
        .orb-3 { bottom: 25%; right: 5%; } /* 4点钟 */
        .orb-4 { bottom: 5%; left: 50%; transform: translateX(-50%); } /* 6点钟 */
        .orb-5 { bottom: 25%; left: 5%; } /* 8点钟 */
        .orb-6 { top: 25%; left: 5%; } /* 10点钟 */

        /* 收益与信任面板：数据仪表盘风格 */
        .trust-dash { padding: 120px 8%; }
        .dash-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .dash-card { background: var(--bg); border-radius: 24px; padding: 40px; box-shadow: var(--neu-shadow); text-align: center; }
        .dash-number { font-size: 56px; font-weight: 900; color: var(--primary); margin: 15px 0; }
        .dash-label { font-size: 18px; font-weight: bold; margin-bottom: 10px; }
        .dash-desc { font-size: 14px; color: var(--text-gray); }

        /* FAQ手风琴：简洁新拟态 */
        .faq-section { padding: 120px 8%; }
        .faq-item { background: var(--bg); border-radius: 16px; margin-bottom: 20px; box-shadow: var(--neu-shadow); overflow: hidden; }
        .faq-q { padding: 25px 30px; font-weight: 700; font-size: 18px; cursor: pointer; display: flex; justify-content: space-between; transition: background .3s; }
        .faq-q:hover { background: rgba(74,144,226,0.05); }
        .faq-a { padding: 0 30px 25px; color: var(--text-gray); line-height: 1.8; display: none; }
        .faq-item.active .faq-a { display: block; }
        .arrow { transition: transform .3s; font-size: 12px; }
        .faq-item.active .arrow { transform: rotate(180deg); }

        footer { background: #2C3E50; color: rgba(255,255,255,0.6); padding: 80px 8% 30px; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 50px; margin-bottom: 50px; }
        .footer-link { display: block; margin-bottom: 12px; transition: color .2s; font-size: 14px; }
        .footer-link:hover { color: var(--primary); }

        @media (max-width: 768px) {
            .dual-value { flex-direction: column; }
            .side-earner { clip-path: none; }
            .side-publisher { padding-left: 8%; }
            .dash-grid { grid-template-columns: 1fr; }
            .orbit-container { transform: scale(0.7); }
            .footer-grid { grid-template-columns: 1fr; }
        }