/* 左侧固定区域  */
        .left-fixed {
            position: fixed;
            top: 0;
            left: 0;
            width: 40%;               
            height: 100vh;
            background: linear-gradient(145deg, #0d2740, #1b3b5c, #1f4b74);
            overflow: hidden;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2.5rem;
            box-shadow: 4px 0 20px rgba(0,0,0,0.2);
            z-index: 1;
        }

        /* 左侧动态装饰 */
        .left-fixed::before {
            content: '';
            position: absolute;
            width: 280px;
            height: 280px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            top: -70px;
            left: -70px;
            animation: floatCircle 18s infinite alternate ease-in-out;
            z-index: 1;
        }

        .left-fixed::after {
            content: '';
            position: absolute;
            width: 340px;
            height: 340px;
            background: rgba(150, 204, 255, 0.1);
            border-radius: 50%;
            bottom: -120px;
            right: -90px;
            animation: floatCircle2 22s infinite alternate-reverse;
            z-index: 1;
        }

        @keyframes floatCircle {
            0% { transform: translate(0, 0) scale(1); opacity: 0.4; }
            100% { transform: translate(40px, 40px) scale(1.3); opacity: 0.8; }
        }
        @keyframes floatCircle2 {
            0% { transform: translate(0, 0) scale(1); opacity: 0.3; }
            100% { transform: translate(-60px, -40px) scale(1.4); opacity: 0.7; }
        }

        /* 左侧SVG 装饰 */
        .left-svg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 2;
        }

        .left-svg .rotating-line {
            transform-origin: center;
            animation: rotateSlow 40s linear infinite;
			transform-box: fill-box;
        }

        @keyframes rotateSlow {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* 左侧内容 (位于顶层) */
        .left-content {
            position: relative;
            z-index: 15;
            max-width: 90%;
            text-align: left;
        }

        .left-content h1 {
            font-size: 3rem;
            font-weight: 700;
            letter-spacing: 1.5px;
            line-height: 1.1;
            text-shadow: 0 4px 15px rgba(0, 10, 30, 0.6);
            margin-bottom: 1.8rem;
            background: linear-gradient(120deg, #ffffff, #e0f0ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .update-badge {
            display: inline-block;
            background: rgba(255,255,255,0.15);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(255,255,255,0.25);
            padding: 0.9rem 2rem;
            border-radius: 60px;
            font-size: 1.2rem;
            font-weight: 500;
            color: #ffffffd9;
            box-shadow: 0 10px 25px -8px rgba(0, 0, 0, 0.3);
            margin-top: 1rem;
        }

        .left-description {
            margin-top: 2.5rem;
            font-size: 1rem;
            opacity: 0.8;
            border-left: 3px solid rgba(255,255,255,0.3);
            padding-left: 1.2rem;
            max-width: 300px;
        }

        /* 右侧可滚动区域 */
        .right-scroll {
            margin-left: 40%;           
            background-color: #ffffff;
            min-height: 100vh;         
            padding: 3rem 3.5rem 4rem 3.5rem;
            box-shadow: inset 0 0 0 1px rgba(0,0,0,0.02);
        }

        /* 右侧内容样式 */
        .privacy-section {
            margin-bottom: 2rem;
        }

        .privacy-section h2 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1f3a5e;
            border-left: 8px solid #2f6eb3;
            padding-left: 20px;
            margin-bottom: 1.2rem;
            line-height: 1.3;
            background: linear-gradient(90deg, #f4f9ff, transparent);
        }

        .privacy-section p {
            font-size: 1.05rem;
            color: #2d4059;
            margin-bottom: 1rem;
            padding-left: 10px;
        }

        .privacy-section ul {
            margin: 0.5rem 0 1rem 30px;
            color: #2d4059;
        }

        .privacy-section li {
            margin-bottom: 0.4rem;
        }

        .privacy-section a {
            color: #1e5494;
            text-decoration: none;
            border-bottom: 1px dotted #6d9bd8;
        }

        .privacy-section a:hover {
            color: #0a2f56;
            border-bottom: 2px solid #1e5494;
        }

        .highlight-box {
            background: #f2f7ff;
            border-radius: 24px;
            padding: 18px 22px;
            margin: 30px 0 20px;
            border-left: 5px solid #376fb0;
            font-size: 1rem;
        }

        hr.sep {
            margin: 40px 0 30px;
            border: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, #b7ccde, transparent);
        }

        .contact-footer {
            background: #eaf1fa;
            border-radius: 40px;
            padding: 20px 30px;
            margin-top: 40px;
            font-size: 1rem;
            border: 1px solid #c1d7ed;
            color: #1d3d63;
            text-align: center;
        }

        /* 移动端适配 */
        @media screen and (max-width: 900px) {
            .left-fixed {
                position: relative;
                width: 100%;
                height: auto;
                min-height: 50vh;
                box-shadow: none;
                padding: 2.5rem 1.8rem;
            }
            .right-scroll {
                margin-left: 0;
                padding: 2rem 1.8rem;
            }
            .left-content h1 {
                font-size: 2.8rem;
            }
        }

        @media screen and (max-width: 500px) {
            .left-content h1 {
                font-size: 2.3rem;
            }
            .update-badge {
                font-size: 1rem;
                padding: 0.7rem 1.4rem;
            }
            .privacy-section h2 {
                font-size: 1.5rem;
            }
        }