* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
        }
        
        body {
            background-color: #f8fafb;
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        a {
            text-decoration: none;
            color: #06ab48;
            transition: all 0.3s ease;
        }
        
        a:hover {
            color: #049c40;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 - Logo靠左 */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            z-index: 1000;
            padding: 15px 0;
            backdrop-filter: blur(10px);
        }
        
        .nav-inner {
            display: flex;
            justify-content: flex-start;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .logo {
            width: 180px;
            height: 40px;
            background: url('https://pcmanager-360.cn/images/logio.png') no-repeat center center;
            background-size: contain;
        }
        
        /* 主视觉区域 - 固定高度 */
        .hero {
            position: relative;
            padding: 140px 0;
            overflow: hidden;
            height: 700px;
            background: linear-gradient(-45deg, #0a7e4e, #0a5a38, #086e46, #0a5a38);
            background-size: 400% 400%;
            animation: gradientBG 15s ease infinite;
        }
        
        @keyframes gradientBG {
            0% {
                background-position: 0% 50%;
            }
            50% {
                background-position: 100% 50%;
            }
            100% {
                background-position: 0% 50%;
            }
        }
        
        /* 动态粒子背景容器 */
        .particles-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
        }
        
        .security-shield {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 250px;
            height: 250px;
            background: 
                radial-gradient(circle at center, rgba(255,255,255,0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 3;
            animation: pulse 4s ease-in-out infinite;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .shield-icon {
            font-size: 100px;
            color: rgba(255, 255, 255, 0.2);
            animation: rotate 15s linear infinite;
        }
        
        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            z-index: 4;
            height: 100%;
        }
        
        .hero-text {
            flex: 1;
            max-width: 550px;
            padding-right: 40px;
            color: white;
        }
        
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        .hero p {
            font-size: 1.1rem;
            margin-bottom: 30px;
            max-width: 500px;
        }
        
        .hero-image {
            flex: 1;
            position: relative;
            text-align: center;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .hero-image img {
            max-height: 450px;
            width: auto;
            transform: translateY(0);
            animation: float 4s ease-in-out infinite;
            filter: drop-shadow(0 10px 20px rgba(0,0,0,0.3));
        }
        
        .download-btn {
            display: inline-block;
            background: white;
            color: #06ab48;
            font-size: 1.1rem;
            font-weight: 600;
            padding: 16px 40px;
            border-radius: 50px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
            transition: all 0.3s ease;
            margin-top: 10px;
            position: relative;
            z-index: 5;
        }
        
        .download-btn:hover {
            background: #f0f7f3;
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
        }
        
        .download-tip {
            display: block;
            margin-top: 15px;
            color: rgba(255,255,255,0.8);
            font-size: 0.95rem;
            position: relative;
            z-index: 5;
        }
        
        /* 功能区域 */
        .section {
            padding: 80px 0;
            position: relative;
            overflow: hidden;
            background: #f8fafb;
        }
        
        /* 模块分隔线 */
        .section + .section {
            border-top: 1px solid #e0eae5;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
            z-index: 3;
        }
        
        .section-title h2 {
            font-size: 2.3rem;
            color: #0a5a38;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: #06ab48;
            border-radius: 3px;
        }
        
        .section-title p {
            color: #5c7c6d;
            font-size: 1.1rem;
            max-width: 700px;
            margin: 20px auto 0;
        }
        
        /* 安全防护功能 */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            position: relative;
            z-index: 3;
        }
        
        .feature-card {
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            padding: 30px;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
        }
        
        .feature-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #e9f7ef;
            border-radius: 50%;
        }
        
        .feature-icon img {
            max-width: 60%;
            height: auto;
        }
        
        .feature-card h3 {
            font-size: 1.4rem;
            color: #0a5a38;
            margin-bottom: 15px;
        }
        
        .feature-card p {
            color: #5c7c6d;
            font-size: 1rem;
            line-height: 1.6;
        }
        
        /* 几何背景特效 - 更轻量的替代方案 */
        .geometric-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            opacity: 0.05;
            overflow: hidden;
            pointer-events: none;
        }
        
        .geometric-shape {
            position: absolute;
            opacity: 0.1;
        }
        
        .shape-circle {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: #06ab48;
            top: 10%;
            left: 5%;
        }
        
        .shape-triangle {
            width: 0;
            height: 0;
            border-left: 80px solid transparent;
            border-right: 80px solid transparent;
            border-bottom: 140px solid #0a5a38;
            top: 40%;
            right: 10%;
        }
        
        .shape-square {
            width: 100px;
            height: 100px;
            background: #086e46;
            transform: rotate(45deg);
            bottom: 15%;
            left: 15%;
        }
        
        .shape-hexagon {
            width: 120px;
            height: 70px;
            background: #049c40;
            position: relative;
            bottom: 20%;
            right: 5%;
        }
        
        .shape-hexagon:before,
        .shape-hexagon:after {
            content: "";
            position: absolute;
            width: 0;
            border-left: 60px solid transparent;
            border-right: 60px solid transparent;
        }
        
        .shape-hexagon:before {
            bottom: 100%;
            border-bottom: 35px solid #049c40;
        }
        
        .shape-hexagon:after {
            top: 100%;
            border-top: 35px solid #049c40;
        }
        
        /* 界面展示区域 */
        .showcase-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            z-index: 3;
        }
        
        .showcase-text {
            flex: 1;
            max-width: 500px;
            padding-right: 30px;
        }
        
        .showcase-text ul {
            list-style: none;
            margin-top: 20px;
        }
        
        .showcase-text li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 15px;
            font-size: 1.1rem;
            color: #2d6d4f;
            font-weight: 500;
        }
        
        .showcase-text li::before {
            content: '✓';
            position: absolute;
            left: 0;
            top: 0;
            color: #06ab48;
            font-weight: bold;
            font-size: 1.2rem;
        }
        
        .showcase-image {
            flex: 1;
            position: relative;
            text-align: center;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .showcase-image:hover {
            transform: scale(1.02);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
        }
        
        .showcase-image img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            display: block;
        }
        
        /* 游戏功能区域 */
        .gaming-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            z-index: 3;
        }
        
        .gaming-image {
            flex: 1;
            position: relative;
            text-align: center;
        }
        
        .gaming-image img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.1);
        }
        
        .gaming-text {
            flex: 1;
            max-width: 500px;
            padding-left: 30px;
        }
        
        .gaming-text .sub-title {
            margin-bottom: 25px;
        }
        
        .gaming-text .sub-title h2 {
            font-size: 2rem;
            color: #0a5a38;
            margin-bottom: 10px;
        }
        
        .gaming-list {
            list-style: none;
        }
        
        .gaming-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 15px;
            font-size: 1.1rem;
            color: #2d6d4f;
            font-weight: 500;
        }
        
        .gaming-list li::before {
            content: '•';
            position: absolute;
            left: 0;
            top: 0;
            color: #06ab48;
            font-weight: bold;
            font-size: 1.8rem;
        }
        
        .gaming-download {
            text-align: center;
            margin-top: 50px;
            position: relative;
            z-index: 3;
        }
        
        /* 页脚 */
        footer {
            background: #0a5a38;
            color: #c0e6d2;
            padding: 50px 0 20px;
            text-align: center;
            position: relative;
        }
        
        .copyright {
            padding-top: 25px;
            font-size: 0.95rem;
            color: #8fc9aa;
        }
        
        /* 动画效果 */
        @keyframes float {
            0% { transform: translateY(0px); }
            50% { transform: translateY(-15px); }
            100% { transform: translateY(0px); }
        }
        
        @keyframes pulse {
            0% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
            50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.7; }
            100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
        }
        
        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .feature-card, .hero-image img, .showcase-image, .gaming-image img {
            animation: fadeIn 0.8s ease forwards;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero-content, .showcase-container, .gaming-container {
                flex-direction: column;
                text-align: center;
            }
            
            .hero {
                height: auto;
                padding: 120px 0 60px;
            }
            
            .hero-text, .showcase-text, .gaming-text {
                padding: 0;
                margin-bottom: 40px;
                max-width: 100%;
            }
            
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .security-shield {
                width: 180px;
                height: 180px;
            }
            
            .shield-icon {
                font-size: 70px;
            }
            
            .geometric-shape {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .showcase-image, .gaming-image {
                margin-top: 20px;
            }
            
            .gaming-text {
                padding-left: 0;
            }
        }