:root {
            --neon-green: #74e4de;
            --neon-purple: #c586ff;
            --neon-blue: #00b4ff;
            --neon-pink: #ff6bcb;
            --highlight-color: #00ff9d;
            --highlight-glow: 0 0 30px rgba(0, 255, 157, 0.4);
            --dark-bg: #0a0a0a;
            --card-bg: rgba(15, 15, 15, 0.9);
            --card-bg-highlight: rgba(10, 25, 20, 0.95);
            --grid-color: rgba(255, 255, 255, 0.05);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background: var(--dark-bg);
            color: #ffffff;
            font-family: 'Rajdhani', sans-serif;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

        /* 英雄区域 */
        .download-hero {
            padding: 4rem 0 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .download-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--neon-green), transparent);
            opacity: 0.5;
        }

        .download-status-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: rgba(116, 228, 222, 0.1);
            border: 1px solid rgba(116, 228, 222, 0.3);
            border-radius: 20px;
            color: var(--neon-green);
            font-size: 0.875rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 1.5rem;
        }

        .download-ping-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--neon-green);
            animation: ping 1.5s infinite;
        }

        @keyframes ping {
            0% { transform: scale(0.8); opacity: 0.8; }
            100% { transform: scale(2.5); opacity: 0; }
        }

        .download-hero h1 {
            font-family: 'Orbitron', sans-serif;
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--neon-green);
            text-shadow: 0 0 20px rgba(116, 228, 222, 0.5);
            margin-bottom: 1.5rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .download-subtitle {
            font-size: 1.25rem;
            color: #9ca3af;
            max-width: 800px;
            margin: 0 auto 3rem;
            line-height: 1.6;
        }

        /* 扫描线动画 */
        @keyframes download-scan {
            0% { top: 0; }
            100% { top: 100%; }
        }

        .download-scan-line {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon-green), transparent);
            animation: download-scan 4s linear infinite;
            pointer-events: none;
            z-index: 2;
        }

        /* 下载平台网格 */
        .download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 2.5rem;
            margin-bottom: 4rem;
        }

        .download-platform-card {
            background: var(--card-bg);
            border: 1px solid rgba(116, 228, 222, 0.2);
            border-radius: 20px;
            padding: 2.5rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
            z-index: 1;
        }

        .download-platform-card:hover {
            transform: translateY(-10px);
            border-color: var(--neon-green);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(116, 228, 222, 0.2);
        }

        /* 突出显示的卡片样式 */
        .download-platform-card.highlighted {

            border: 2px solid #74e4de;
            box-shadow: var(--highlight-glow), 0 20px 40px rgba(0, 0, 0, 0.4);

            animation: highlight-pulse 3s infinite;
        }

        .download-platform-card.highlighted:hover {
            transform: translateY(-15px);
            box-shadow: var(--highlight-glow), 0 30px 60px rgba(0, 0, 0, 0.5);
        }

        @keyframes highlight-pulse {
            0%, 100% {
                box-shadow: var(--highlight-glow), 0 20px 40px rgba(0, 0, 0, 0.4);
            }
            50% {
                box-shadow: 0 0 40px rgba(0, 255, 157, 0.6), 0 25px 50px rgba(0, 0, 0, 0.5);
            }
        }

        .download-platform-card.highlighted::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg,
            rgba(0, 255, 157, 0.1) 0%,
            rgba(116, 228, 222, 0.05) 50%,
            transparent 100%);
            pointer-events: none;
            z-index: -1;
        }

        /* 推荐徽章 */
        .download-recommend-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            background: linear-gradient(135deg, var(--highlight-color), var(--neon-green));
            color: var(--dark-bg);
            padding: 0.5rem 1rem;
            font-family: 'Orbitron', sans-serif;
            font-size: 0.9rem;
            font-weight: 700;
            border-radius: 10px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            z-index: 2;
            animation: badge-glow 2s infinite alternate;
        }

        @keyframes badge-glow {
            0% {
                box-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
            }
            100% {
                box-shadow: 0 0 20px rgba(0, 255, 157, 0.8);
            }
        }

        .download-platform-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(116, 228, 222, 0.05), transparent 50%);
            pointer-events: none;
            z-index: -1;
        }

        /* 装饰角 */
        .download-corner {
            position: absolute;
            width: 20px;
            height: 20px;
            opacity: 0.5;
            transition: opacity 0.3s ease;
        }

        .download-platform-card.highlighted .download-corner {
            border-color: var(--highlight-color);
            opacity: 1;
        }

        .download-corner-top-left {
            top: 0;
            left: 0;
            border-top: 2px solid var(--neon-green);
            border-left: 2px solid var(--neon-green);
            border-top-left-radius: 20px;
        }

        .download-corner-top-right {
            top: 0;
            right: 0;
            border-top: 2px solid var(--neon-green);
            border-right: 2px solid var(--neon-green);
            border-top-right-radius: 20px;
        }

        .download-corner-bottom-left {
            bottom: 0;
            left: 0;
            border-bottom: 2px solid var(--neon-green);
            border-left: 2px solid var(--neon-green);
            border-bottom-left-radius: 20px;
        }

        .download-corner-bottom-right {
            bottom: 0;
            right: 0;
            border-bottom: 2px solid var(--neon-green);
            border-right: 2px solid var(--neon-green);
            border-bottom-right-radius: 20px;
        }

        /* 平台图标 */
        .download-platform-icon {
            width: 120px;
            height: 120px;
            margin: 0 auto 1.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(116, 228, 222, 0.1);
            border-radius: 20px;
            position: relative;
            overflow: hidden;
        }


        .download-platform-icon img {
            max-width: 80px;
            height: auto;
            filter: drop-shadow(0 0 10px rgba(116, 228, 222, 0.5));
        }


        /* 平台信息 */
        .download-platform-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            color: var(--neon-green);
            text-align: center;
            margin-bottom: 0.5rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .download-platform-card.highlighted .download-platform-title {
            color: #74e4de;
            text-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
        }

        .download-platform-version {
            font-size: 1.25rem;
            color: #74e4de;
            text-align: center;
            margin-bottom: 2rem;
            font-weight: 600;
            text-shadow: 0 0 10px rgba(197, 134, 255, 0.3);
        }

        .download-platform-card.highlighted .download-platform-version {
            color: var(--neon-blue);
            text-shadow: 0 0 10px rgba(0, 180, 255, 0.4);
        }

        /* 下载按钮 */
        .download-button {
            display: block;
            width: 100%;
            padding: 1.25rem;
            margin: 0.75rem 0;
            background: linear-gradient(135deg, #74e4de, #74e4de);
            border: none;
            border-radius: 12px;
            color: var(--dark-bg);
            font-family: 'Orbitron', sans-serif;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            text-decoration: none;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .download-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(116, 228, 222, 0.3), 0 0 15px rgba(116, 228, 222, 0.4);
        }

        .download-button.highlighted {
            background: linear-gradient(135deg, #74e4de, #74e4de);
            animation: button-highlight 2s infinite;
            box-shadow: 0 5px 15px rgba(0, 255, 157, 0.4);
        }

        .download-button.highlighted:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0, 255, 157, 0.5), 0 0 20px rgba(0, 255, 157, 0.6);
        }

        @keyframes button-highlight {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.02);
            }
        }

        /* 平台描述 */
        .download-platform-desc {
            color: #9ca3af;
            line-height: 1.6;
            margin-top: 1.5rem;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            border-left: 3px solid #74e4de;
            font-size: 0.95rem;
        }

        .download-platform-card.highlighted .download-platform-desc {
            background: rgba(0, 255, 157, 0.05);
            border-left: 3px solid var(--highlight-color);
        }

        .download-platform-desc a{
            color: #74e4de;
        }

        /* 历史版本区域 */
        .download-history-section {
            background: var(--card-bg);
            border: 1px solid rgba(116, 228, 222, 0.2);
            border-radius: 20px;
            padding: 2.5rem;
            margin: 3rem 0;
            position: relative;
            overflow: hidden;
        }

        .download-history-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            color: var(--neon-green);
            margin-bottom: 2rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            text-align: center;
        }

        .download-history-tabs {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .download-history-tab {
            padding: 1rem 2rem;
            background: rgba(116, 228, 222, 0.1);
            border: 1px solid rgba(116, 228, 222, 0.3);
            border-radius: 12px;
            color: var(--neon-green);
            font-family: 'Orbitron', sans-serif;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .download-history-tab:hover {
            background: rgba(116, 228, 222, 0.2);
            transform: translateY(-2px);
        }

        .download-history-tab.active {
            background: linear-gradient(135deg, var(--neon-green), #00c6ff);
            color: var(--dark-bg);
            border-color: var(--neon-green);
        }

        .download-history-content {
            display: none;
        }

        .download-history-content.active {
            display: block;
        }

        .download-history-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .download-history-item {
            padding: 1rem 1.5rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(116, 228, 222, 0.1);
            border-radius: 8px;
            transition: all 0.3s ease;
            text-decoration: none;
            color: #ffffff;
        }

        .download-history-item:hover {
            background: rgba(116, 228, 222, 0.1);
            border-color: var(--neon-green);
            transform: translateY(-2px);
        }

        .download-history-item .version {
            font-weight: 600;
            color: var(--neon-green);
            margin-bottom: 0.25rem;
        }

        .download-history-item .date {
            font-size: 0.9rem;
            color: #9ca3af;
        }

        /* 更新日志区域 */
        .download-update-section {
            background: var(--card-bg);
            border: 1px solid rgba(116, 228, 222, 0.2);
            border-radius: 20px;
            padding: 2.5rem;
            margin: 3rem 0;
            position: relative;
            overflow: hidden;
        }

        .download-update-title {
            font-family: 'Orbitron', sans-serif;
            font-size: 2rem;
            color: var(--neon-green);
            margin-bottom: 2rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .download-update-content {
            color: #ffffff;
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }

        .download-update-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1.5rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(116, 228, 222, 0.2);
        }

        .download-update-more {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            background: rgba(116, 228, 222, 0.1);
            border: 1px solid rgba(116, 228, 222, 0.3);
            border-radius: 8px;
            color: var(--neon-green);
            font-family: 'Orbitron', sans-serif;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            text-decoration: none;
        }

        .download-update-more:hover {
            background: rgba(116, 228, 222, 0.2);
            transform: translateY(-2px);
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .download-hero h1 {
                font-size: 3rem;
            }

            .download-container {
                padding: 0 1rem;
            }
        }

        @media (max-width: 1024px) {
            .download-hero h1 {
                font-size: 2.5rem;
            }

            .download-subtitle {
                font-size: 1.125rem;
            }

            .download-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .download-platform-card {
                padding: 2rem;
            }
        }

        @media (max-width: 768px) {
            .download-hero {
                padding: 3rem 0 1.5rem;
            }

            .download-hero h1 {
                font-size: 2rem;
            }

            .download-subtitle {
                font-size: 1rem;
                margin-bottom: 2rem;
            }

            .download-platform-card {
                padding: 1.75rem;
            }

            .download-recommend-badge {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
                top: 15px;
                right: 15px;
            }

            .download-platform-title {
                font-size: 1.75rem;
            }

            .download-platform-version {
                font-size: 1.125rem;
            }

            .download-button {
                padding: 1.125rem;
                font-size: 1rem;
            }

            .download-history-section,
            .download-update-section {
                padding: 2rem;
            }

            .download-history-title,
            .download-update-title {
                font-size: 1.75rem;
            }
        }

        @media (max-width: 480px) {
            .download-hero {
                padding: 2.5rem 0 1rem;
            }

            .download-hero h1 {
                font-size: 1.75rem;
            }

            .download-platform-card {
                padding: 1.5rem;
            }

            .download-recommend-badge {
                font-size: 0.7rem;
                padding: 0.3rem 0.6rem;
            }

            .download-platform-icon {
                width: 100px;
                height: 100px;
            }

            .download-platform-icon img {
                max-width: 60px;
            }

            .download-button {
                padding: 1rem;
                font-size: 0.95rem;
            }

            .download-history-tab {
                padding: 0.875rem 1.5rem;
                font-size: 0.9rem;
            }

            .download-history-list {
                grid-template-columns: 1fr;
            }
        }

        /* 动画效果 */
        .download-animated {
            animation: fadeInUp 0.8s ease-out;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 操作系统检测提示 */
        .download-os-detect {
            text-align: center;
            margin-bottom: 2rem;
            padding: 1rem;
            background: rgba(0, 255, 157, 0.05);
            border-radius: 12px;
            border: 1px solid rgba(0, 255, 157, 0.2);
        }

        .download-os-detect .highlight {
            color: var(--highlight-color);
            font-weight: 700;
            text-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
        }