/* ===== 基础重置与变量 ===== */
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #00d4ff;
            --primary-dark: #00a8cc;
            --secondary: #ff6b35;
            --dark: #0a0a0f;
            --darker: #050508;
            --card-bg: rgba(20, 20, 30, 0.8);
            --card-border: rgba(0, 212, 255, 0.15);
            --text: #e0e0e0;
            --text-light: #a0a0b0;
            --text-muted: #6a6a7a;
            --success: #00ff88;
            --warning: #ffaa00;
            --danger: #ff4444;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
            --transition: all 0.3s ease;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: var(--darker);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; height: auto; display: block; }
        ul { list-style: none; }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--dark); }
        ::-webkit-scrollbar-thumb { background: var(--primary-dark); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--primary); }

        /* ===== 粒子背景 ===== */
        .particles {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            pointer-events: none;
            z-index: 0;
            overflow: hidden;
        }
        .particle {
            position: absolute;
            width: 4px; height: 4px;
            background: var(--primary);
            border-radius: 50%;
            opacity: 0.3;
            animation: float 15s infinite linear;
        }
        @keyframes float {
            0% { transform: translateY(100vh) translateX(0); opacity: 0; }
            10% { opacity: 0.3; }
            90% { opacity: 0.3; }
            100% { transform: translateY(-10vh) translateX(100px); opacity: 0; }
        }

        /* ===== 导航栏 ===== */
        .navbar {
            position: fixed;
            top: 0; left: 0; width: 100%;
            background: rgba(10, 10, 15, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--card-border);
            z-index: 1000;
            padding: 0 20px;
        }
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
        }
        .logo-icon {
            width: 40px; height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--dark);
        }
        .nav-links {
            display: flex;
            gap: 30px;
        }
        .nav-links a {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .nav-links a:hover { color: var(--primary); }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px; left: 0;
            width: 0; height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .nav-links a:hover::after { width: 100%; }
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--primary);
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* ===== 英雄区域 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 100px 20px 60px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: 
                radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 50%, rgba(255, 107, 53, 0.06) 0%, transparent 50%);
            z-index: 1;
        }
        .hero-grid {
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background-image: 
                linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
            background-size: 50px 50px;
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 1200px;
            width: 100%;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid var(--card-border);
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary);
            margin-bottom: 24px;
        }
        .hero-badge .dot {
            width: 8px; height: 8px;
            background: var(--success);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.15rem;
            color: var(--text-light);
            margin-bottom: 32px;
            max-width: 500px;
        }
        .hero-stats {
            display: flex;
            gap: 30px;
            margin-bottom: 40px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            border: none;
            position: relative;
            overflow: hidden;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--dark);
            box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 212, 255, 0.6);
        }
        .btn-secondary {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-secondary:hover {
            background: rgba(0, 212, 255, 0.1);
            transform: translateY(-2px);
        }
        .btn-lg { padding: 16px 40px; font-size: 1.1rem; }

        /* 主图模块 */
        .hero-image {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-glow);
            border: 1px solid var(--card-border);
        }
        .hero-image img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: var(--transition);
        }
        .hero-image:hover img { transform: scale(1.03); }
        .hero-image-overlay {
            position: absolute;
            bottom: 0; left: 0; right: 0;
            background: linear-gradient(transparent, rgba(10, 10, 15, 0.9));
            padding: 30px 20px 20px;
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
        }
        .image-tag {
            background: rgba(0, 212, 255, 0.2);
            border: 1px solid var(--primary);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
        }
        .image-version {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== 功能特性 ===== */
        .features {
            padding: 100px 20px;
            position: relative;
            z-index: 2;
        }
        .section-header {
            text-align: center;
            max-width: 600px;
            margin: 0 auto 60px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid var(--card-border);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 2.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-desc {
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .features-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius);
            padding: 32px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .feature-card:hover::before { transform: scaleX(1); }
        .feature-icon {
            width: 56px; height: 56px;
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 212, 255, 0.05));
            border: 1px solid var(--card-border);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: #fff;
        }
        .feature-card p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .feature-tag {
            display: inline-block;
            background: rgba(0, 255, 136, 0.1);
            color: var(--success);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.75rem;
            margin-top: 12px;
            font-weight: 600;
        }

        /* ===== 下载区域 ===== */
        .download-section {
            padding: 80px 20px;
            position: relative;
            z-index: 2;
            background: linear-gradient(180deg, var(--darker) 0%, rgba(0, 212, 255, 0.03) 50%, var(--darker) 100%);
        }
        .download-container {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        .download-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius);
            padding: 48px;
            position: relative;
            overflow: hidden;
        }
        .download-card::before {
            content: '';
            position: absolute;
            top: -50%; left: -50%;
            width: 200%; height: 200%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }
        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        .download-card > * { position: relative; z-index: 1; }
        .download-icon {
            width: 80px; height: 80px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            margin: 0 auto 24px;
            color: var(--dark);
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
        }
        .download-card h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #fff;
        }
        .download-card .version-info {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 32px;
        }
        .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: var(--dark);
            padding: 18px 48px;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 700;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 25px rgba(0, 212, 255, 0.5);
            position: relative;
            overflow: hidden;
        }
        .download-btn:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 8px 40px rgba(0, 212, 255, 0.7);
        }
        .download-btn::after {
            content: '';
            position: absolute;
            top: -50%; left: -50%;
            width: 200%; height: 200%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);

            transform: rotate(45deg);
            animation: shine 3s infinite;
        }
        @keyframes shine {
            0% { left: -100%; }
            100% { left: 100%; }
        }
        .download-meta {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .download-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .download-meta-item .icon { color: var(--primary); font-size: 1.1rem; }

        /* ===== 部署教程 ===== */
        .tutorial {
            padding: 100px 20px;
            position: relative;
            z-index: 2;
        }
        .tutorial-container {
            max-width: 1000px;
            margin: 0 auto;
        }
        .steps {
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .step {
            display: grid;
            grid-template-columns: 80px 1fr;
            gap: 24px;
            position: relative;
            padding-bottom: 40px;
        }
        .step:not(:last-child)::after {
            content: '';
            position: absolute;
            left: 39px;
            top: 60px;
            width: 2px;
            height: calc(100% - 20px);
            background: linear-gradient(to bottom, var(--primary), transparent);
        }
        .step-number {
            width: 80px; height: 80px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--dark);
            flex-shrink: 0;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
            position: relative;
            z-index: 2;
        }
        .step-content {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius);
            padding: 28px 32px;
            transition: var(--transition);
        }
        .step-content:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .step-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #fff;
        }
        .step-content p {
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        .step-note {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 170, 0, 0.1);
            border: 1px solid rgba(255, 170, 0, 0.3);
            color: var(--warning);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            margin-top: 12px;
            font-weight: 500;
        }

        /* ===== 常见问题 ===== */
        .faq {
            padding: 100px 20px;
            position: relative;
            z-index: 2;
            background: linear-gradient(180deg, var(--darker) 0%, rgba(255, 107, 53, 0.02) 50%, var(--darker) 100%);
        }
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--primary); }
        .faq-question {
            padding: 24px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: #fff;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-toggle {
            width: 28px; height: 28px;
            background: rgba(0, 212, 255, 0.1);
            border: 1px solid var(--card-border);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-answer {
            padding: 0 28px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.active .faq-answer {
            padding: 0 28px 24px;
            max-height: 300px;
        }
        .faq-item.active .faq-toggle {
            transform: rotate(180deg);
            background: var(--primary);
            color: var(--dark);
        }

        /* ===== 底部参数模块 ===== */
        .footer-params {
            padding: 80px 20px 40px;
            position: relative;
            z-index: 2;
            border-top: 1px solid var(--card-border);
            background: var(--dark);
        }
        .params-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 60px;
        }
        .params-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .params-col ul li {
            padding: 8px 0;
            color: var(--text-light);
            font-size: 0.9rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            display: flex;
            justify-content: space-between;
        }
        .params-col ul li span:last-child {
            color: var(--text-muted);
        }
        .params-col ul li:hover { color: var(--primary); }

        /* 底部信息 */
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 40px;
            border-top: 1px solid var(--card-border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: var(--primary);
        }
        .footer-copy {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-links {
            display: flex;
            gap: 20px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--primary); }

        /* ===== 响应式 ===== */
        @media (max-width: 968px) {
            .hero-content { grid-template-columns: 1fr; text-align: center; }
            .hero h1 { font-size: 2.4rem; }
            .hero p { margin: 0 auto 32px; }
            .hero-stats { justify-content: center; }
            .hero-buttons { justify-content: center; }
            .hero-image { order: -1; max-width: 600px; margin: 0 auto; }
            .nav-links { display: none; }
            .mobile-menu-btn { display: block; }
            .step { grid-template-columns: 60px 1fr; }
            .step-number { width: 60px; height: 60px; font-size: 1.4rem; }
            .step:not(:last-child)::after { left: 29px; }
        }
        @media (max-width: 640px) {
            .hero { padding: 80px 16px 40px; }
            .hero h1 { font-size: 1.8rem; }
            .hero p { font-size: 1rem; }
            .section-title { font-size: 1.8rem; }
            .features, .tutorial, .faq, .download-section { padding: 60px 16px; }
            .download-card { padding: 32px 20px; }
            .download-btn { padding: 14px 32px; font-size: 1rem; }
            .step { grid-template-columns: 1fr; }
            .step-number { margin-bottom: 16px; }
            .step:not(:last-child)::after { display: none; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .params-grid { grid-template-columns: 1fr; }
        }

        /* ===== 动画 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.8s ease forwards;
        }
        @keyframes fadeInUp {
            to { opacity: 1; transform: translateY(0); }
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        /* 装饰元素 */
        .glow-orb {
            position: fixed;
            border-radius: 50%;
            filter: blur(80px);
            pointer-events: none;
            z-index: 0;
            opacity: 0.15;
        }
        .orb-1 { width: 400px; height: 400px; background: var(--primary); top: 10%; left: -10%; }
        .orb-2 { width: 300px; height: 300px; background: var(--secondary); bottom: 20%; right: -5%; }