/* ----- 全局重置 & 基础 ----- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background-color: #000;
            color: #0a0e17;
            line-height: 1.6;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ----- 按钮 ----- */
        .btn-primary {
            display: inline-block;
            background: #f0b90b; /* 币安黄 */
            color: #1e2329;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: background 0.2s;
            text-decoration: none;
            box-shadow: 0 4px 12px rgba(240, 185, 11, 0.2);
        }
        .btn-primary:hover {
            background: #d6a40a;
            color: #14171a;
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: #f0b90b;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid #f0b90b;
            cursor: pointer;
            transition: all 0.2s;
            text-decoration: none;
        }
        .btn-outline:hover {
            background: #f0b90b;
            color: #1e2329;
        }

        /* ----- 头部导航 ----- */
        .navbar {
            background: #000;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f0b90b;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo i {
            font-size: 2rem;
            color: #f0b90b;
        }
        .logo span {
            color: #fff;
            font-weight: 700;
        }
        .nav-links {
            display: flex;
            gap: 32px;
            align-items: center;
            list-style: none;
        }
        .nav-links a {
            text-decoration: none;
            color: #999;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.2s;
        }
        .nav-links a:hover {
            color: #f0b90b;
        }
        .nav-links .btn-primary {
            display: inline-block;
            padding: 10px 25px;
            background-color: #f0b90b;
            color: #0a0e17;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            text-align: center;
            font-size: 16px;
        }
        .nav-links .btn-primary:hover {
            background: #d6a40a;
        }

        /* ----- Hero / 主横幅 ----- */
        .hero {
            background: #000;
            padding: 80px 0 60px;
            text-align: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            letter-spacing: -1px;
            margin-bottom: 16px;
            color: #fff;
        }
        .hero h1 .highlight {
            color: #f0b90b;
            background: linear-gradient(145deg, #f0b90b, #d6a40a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero p {
            font-size: 1.2rem;
            color: #475569;
            max-width: 720px;
            margin: 0 auto 32px;
        }
        .hero .stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            flex-wrap: wrap;
            margin-top: 40px;
        }
        .hero .stats .stat-item {
            text-align: center;
        }
        .hero .stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #dedede;
        }
        .hero .stats .stat-label {
            color: #64748b;
            font-size: 0.9rem;
        }
        .hero .badge-group {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 28px;
        }
        .hero .badge {
            display: inline-block;
            padding: 10px 25px;
            background-color: #fff;
            color: #0a0e17;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            text-align: center;
            font-size: 16px;
        }
        .hero .badge i {
            margin-right: 8px;
            color: #f0b90b;
        }

        /* ----- 通用 section ----- */
        section {
            padding: 72px 0;
        }
        .section-title {
            text-align: center;
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            color: #fff;
        }
        .section-title span{
          
            color: #f0b90b !important;
        }
        .section-subtitle {
            text-align: center;
            color: #64748b;
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        /* ----- 核心优势 (卡片) ----- */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 32px;
        }
        .advantage-card {
            padding: 32px 24px;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
            text-align: center;
            transition: transform 0.2s, box-shadow 0.2s;
            border: 1px solid rgba(240, 185, 11, 0.6);
        }
        .advantage-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
        }
        .advantage-card .icon {
            font-size: 2.4rem;
            color: #f0b90b;
            margin-bottom: 16px;
        }
        .advantage-card h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            font-weight: 700;
            color: #f0b90b;
        }
        .advantage-card p {
            color: #64748b;
            font-size: 0.95rem;
        }

        /* ----- 交易产品 ----- */
        .products {
           
            border-top: 1px solid #f0f0f0;
            border-bottom: 1px solid #f0f0f0;
        }
        .product-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px 32px;
            margin-bottom: 48px;
        }
        .product-list .product-tag {
            background: #f0b90b;
            padding: 6px 20px;
            border-radius: 40px;
            font-weight: 500;
            color: #fff;
            border: 1px solid #fde68a;
        }
        .product-list .product-tag i {
            margin-right: 8px;
            color: #f0b90b;
        }
        .price-display {
            background: #f8fafc;
            padding: 24px 40px;
            border-radius: 60px;
            display: inline-flex;
            align-items: center;
            gap: 16px;
            font-size: 1.2rem;
            font-weight: 600;
            margin: 0 auto;
            border: 1px solid #e2e8f0;
        }
        .price-display .price {
            color: #f0b90b;
            font-size: 1.8rem;
            font-weight: 800;
        }

        /* ----- 安全风控 ----- */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
        }
        .security-card {
            background: #fff;
            padding: 28px 20px;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
            text-align: center;
            border: 1px solid #f8fafc;
        }
        .security-card .icon {
            font-size: 2rem;
            color: #f0b90b;
            margin-bottom: 12px;
        }
        .security-card h4 {
            font-size: 1.1rem;
            margin-bottom: 6px;
            font-weight: 700;
            color: #f0b90b;
        }
        .security-card p {
            color: #64748b;
            font-size: 0.9rem;
        }

        /* ----- 下载中心 ----- */
        .download {
            background: linear-gradient(145deg, #1a1e2e 0%, #0f111a 100%);
            color: #fff;
            text-align: center;
            border-top: 1px solid #2d3748;
        }
        .download .section-title {
            color: #fff;
        }
        .download .section-subtitle {
            color: #b0c4de;
        }
        .download .btn-group {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 32px;
        }
        .download .btn-group .btn-primary {
            background: #f0b90b;
            color: #1e2329;
            box-shadow: 0 4px 12px rgba(240, 185, 11, 0.3);
        }
        .download .btn-group .btn-primary:hover {
            background: #d6a40a;
        }
        .download .btn-group .btn-outline {
            border-color: #f0b90b;
            color: #f0b90b;
        }
        .download .btn-group .btn-outline:hover {
            background: #f0b90b;
            color: #1e2329;
        }

        /* ----- 页脚 ----- */
        .footer {
            background: #0f111a;
            color: #94a3b8;
            padding: 32px 0;
            text-align: center;
            font-size: 0.9rem;
            border-top: 1px solid #1e293b;
        }
        .footer a {
            color: #94a3b8;
            text-decoration: none;
            margin: 0 12px;
        }
        .footer a:hover {
            color: #f0b90b;
        }


        /* ----- 响应式 ----- */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero .stats {
                gap: 24px;
            }
            .navbar .container {
                flex-wrap: wrap;
                gap: 12px;
            }
            .nav-links {
                gap: 16px;
                flex-wrap: wrap;
                justify-content: center;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .price-display {
                padding: 16px 24px;
                font-size: 1rem;
                flex-wrap: wrap;
                justify-content: center;
            }
            .price-display .price {
                font-size: 1.4rem;
            }
        }