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

        :root {
            --primary-bg: #0a1930;
            --secondary-bg: #15264a;
            --card-bg: #1b2e4e;
            --accent: #1dd1a1;
            --text-color: #e4f0fb;
            --text-secondary: #9db4cc;
            --success: #2ecc71;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: var(--primary-bg);
            color: var(--text-color);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }

        header {
            text-align: center;
            padding: 30px 0;
            margin-bottom: 20px;
            position: relative;
        }

        header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 200px;
            height: 3px;
            background: linear-gradient(to right, transparent, var(--accent), transparent);
        }

        h1 {
            font-size: 2.2rem;
            margin-bottom: 10px;
            background: linear-gradient(90deg, var(--accent), #40e0d0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .subtitle {
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        .feature-card {
            background-color: var(--card-bg);
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-5px);
        }

        .feature-card h2 {
            color: var(--accent);
            font-size: 1.6rem;
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }

        .feature-card h2 svg {
            margin-right: 10px;
        }

        .features {
            margin: 20px 0;
        }

        .feature-item {
            display: flex;
            align-items: center;
            margin-bottom: 10px;
        }

        .feature-icon {
            color: var(--accent);
            margin-right: 10px;
            font-size: 1.2rem;
        }

        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: var(--accent);
            color: #0a1930;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            text-align: center;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(29, 209, 161, 0.3);
        }

        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(29, 209, 161, 0.5);
        }

        .btn:active {
            transform: translateY(1px);
        }

        .btn-container {
            display: flex;
            justify-content: center;
            margin-top: 25px;
        }

        .node-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .node-card {
            background: var(--secondary-bg);
            border-radius: 10px;
            padding: 20px;
            transition: all 0.3s ease;
        }

        .node-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }

        .node-card h3 {
            margin-bottom: 12px;
            display: flex;
            align-items: center;
        }

        .node-card h3 .flag {
            margin-right: 8px;
            font-size: 1.4rem;
        }

        .node-info {
            color: var(--text-secondary);
            margin-bottom: 15px;
        }

        .node-info span {
            display: block;
            margin: 5px 0;
        }

        .status {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 15px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-top: 8px;
        }

        .status-online {
            background-color: rgba(46, 204, 113, 0.2);
            color: var(--success);
        }

        .status-highspeed {
            background-color: rgba(29, 209, 161, 0.2);
            color: var(--accent);
        }

        .instructions {
            margin-top: 40px;
            padding: 20px;
            border-radius: 10px;
            background: var(--card-bg);
        }

        .instructions h2 {
            text-align: center;
            color: var(--accent);
            margin-bottom: 20px;
        }

        .step {
            display: flex;
            margin-bottom: 15px;
            align-items: flex-start;
        }

        .step-number {
            min-width: 30px;
            height: 30px;
            background: var(--accent);
            color: var(--card-bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-right: 15px;
        }

        footer {
            text-align: center;
            padding: 30px 0;
            color: var(--text-secondary);
            margin-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .node-list {
                grid-template-columns: repeat(auto-fill, minmax(100%, 1fr));
            }
            
            .feature-card {
                padding: 20px;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            
            .feature-card h2 {
                font-size: 1.4rem;
            }
            
            .btn {
                padding: 10px 20px;
            }
        }

        /* 动画效果 */
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(29, 209, 161, 0.5);
            }
            70% {
                box-shadow: 0 0 0 12px rgba(29, 209, 161, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(29, 209, 161, 0);
            }
        }

        .animated {
            animation: pulse 2s infinite;
        }

        /* 国家标志符号 */
        .flag-us:after { content: '🇺🇸'; }
        .flag-jp:after { content: '🇯🇵'; }
        .flag-hk:after { content: '🇭🇰'; }
        .flag-sg:after { content: '🇸🇸'; }
        .flag-gb:after { content: '🇧🇧'; }
        .flag-de:after { content: '🇩🇪'; }
        .flag-ca:after { content: '🇨🇨'; }
        .flag-tw:after { content: '🇹🇹'; }
        
        /* 新增动画部分 */
        @keyframes slideInUp {
            from {
                transform: translateY(100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }
        
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: scale(0.9);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }
        
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes float {
            0% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-10px);
            }
            100% {
                transform: translateY(0px);
            }
        }

        /* 启动动画样式 */
        #splash-screen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #0a1930, #15264a, #1b2e4e);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.8s ease, visibility 0.8s ease;
        }
        
        .splash-content {
            text-align: center;
            padding: 20px;
            max-width: 800px;
        }
        
        .splash-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 30px;
            background: linear-gradient(90deg, #1dd1a1, #40e0d0, #6a89ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 5px 15px rgba(29, 209, 161, 0.3);
            opacity: 0;
            animation: fadeInDown 1s forwards;
            animation-delay: 0.5s;
        }
        
        .splash-subtitle {
            font-size: 1.8rem;
            color: var(--text-secondary);
            margin-bottom: 50px;
            opacity: 0;
            animation: fadeIn 1s forwards;
            animation-delay: 1.5s;
        }
        
        .enter-btn {
            font-size: 1.5rem;
            padding: 15px 50px;
            border-radius: 50px;
            background: linear-gradient(90deg, #1dd1a1, #40e0d0);
            color: var(--primary-bg);
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 30px rgba(29, 209, 161, 0.3);
            opacity: 0;
            transform: translateY(20px);
            animation: fadeIn 0.8s forwards, float 3s infinite ease-in-out;
            animation-delay: 2.5s;
        }
        
        .enter-btn:hover {
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 15px 35px rgba(29, 209, 161, 0.5);
        }
        
        .splash-logo {
            width: 120px;
            height: 120px;
            margin-bottom: 40px;
            background: linear-gradient(135deg, #1dd1a1, #40e0d0);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0;
            transform: scale(0.8);
            animation: fadeIn 1.2s forwards;
            animation-delay: 0.2s;
        }
        
        .splash-logo i {
            font-size: 60px;
            color: #0a1930;
        }
        
        .splash-footer {
            position: absolute;
            bottom: 30px;
            color: var(--text-secondary);
            font-size: 0.9rem;
            opacity: 0;
            animation: fadeIn 1s forwards;
            animation-delay: 3s;
        }
        
        .particles {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            overflow: hidden;
            z-index: -1;
        }
        
        .particle {
            position: absolute;
            background: rgba(29, 209, 161, 0.3);
            border-radius: 50%;
            animation: floatParticle 15s infinite linear;
        }
        
        @keyframes floatParticle {
            0% {
                transform: translateY(0) translateX(0) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 0.5;
            }
            100% {
                transform: translateY(-500px) translateX(200px) rotate(360deg);
                opacity: 0;
            }
        }
        
        /* 主容器初始隐藏 */
        .main-container {
            opacity: 0;
            transition: opacity 1s ease;
        }
        
        /* 音乐播放器 */
        #music-player {
            position: fixed;
            left: 20px;
            bottom: 20px;
            width: 320px;
            height: 150px;
            background-color: rgba(27, 46, 78, 0.9);
            border-radius: 12px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            overflow: hidden;
            border: 1px solid rgba(29, 209, 161, 0.3);
            
            /* 初始状态：在屏幕下方 */
            transform: translateY(100%);
            opacity: 0;
            
            /* 动画效果 */
            animation: slideInUp 0.8s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
            animation-delay: 4s;
            
            /* 过渡效果 */
            transition: height 0.4s ease, transform 0.3s ease, opacity 0.3s ease;
        }

        #music-player.minimized {
            height: 40px;
        }

        #music-player:hover {
            transform: translateY(-5px) scale(1.02);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
        }

        #player-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 15px;
            background-color: rgba(21, 38, 74, 0.8);
            border-bottom: 1px solid rgba(29, 209, 161, 0.2);
            cursor: move;
            user-select: none;
        }

        #player-header span {
            font-size: 0.9rem;
            color: #e4f0fb;
        }

        #minimize-btn {
            background: none;
            border: none;
            color: #9db4cc;
            font-size: 1.2rem;
            cursor: pointer;
            padding: 0 5px;
            transition: transform 0.2s ease;
        }

        #minimize-btn:hover {
            color: #1dd1a1;
            transform: scale(1.2);
        }

        #player-body {
            padding: 15px;
            display: flex;
            flex-direction: column;
        }

        #album-art {
            display: none;
        }

        #track-info {
            margin-bottom: 10px;
        }

        #track-title {
            font-size: 1rem;
            color: #e4f0fb;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            animation: textScroll 10s linear infinite;
        }

        @keyframes textScroll {
            0% {
                transform: translateX(100%);
            }
            100% {
                transform: translateX(-100%);
            }
        }

        #track-artist {
            font-size: 0.8rem;
            color: #9db4cc;
        }

        #progress-container {
            margin-bottom: 10px;
        }

        #progress-bar {
            width: 100%;
            height: 4px;
            -webkit-appearance: none;
            appearance: none;
            background: rgba(157, 180, 204, 0.2);
            border-radius: 2px;
            outline: none;
            cursor: pointer;
            transition: height 0.2s ease;
        }

        #progress-bar:hover {
            height: 6px;
        }

        #progress-bar::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #1dd1a1;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        #progress-bar::-webkit-slider-thumb:hover {
            transform: scale(1.5);
        }

        #time-display {
            display: flex;
            justify-content: space-between;
            font-size: 0.7rem;
            color: #9db4cc;
            margin-top: 3px;
        }

        #player-controls {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        #player-controls button {
            background: none;
            border: none;
            color: #e4f0fb;
            font-size: 1.2rem;
            cursor: pointer;
            padding: 5px 10px;
            transition: all 0.3s ease;
            transform: scale(1);
        }

        #player-controls button:hover {
            color: #1dd1a1;
            transform: scale(1.2);
        }

        #play-pause-btn {
            font-size: 1.5rem;
        }

        #volume-control {
            display: flex;
            align-items: center;
        }

        #volume-btn {
            margin-right: 8px;
            transition: transform 0.2s ease;
        }

        #volume-btn:hover {
            transform: scale(1.2);
        }

        #volume-slider {
            width: 80px;
            height: 4px;
            -webkit-appearance: none;
            appearance: none;
            background: rgba(157, 180, 204, 0.2);
            border-radius: 2px;
            outline: none;
            transition: height 0.2s ease;
        }

        #volume-slider:hover {
            height: 6px;
        }

        #volume-slider::-webkit-slider-thumb {
            -webkit-appearance: none;
            appearance: none;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #1dd1a1;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        #volume-slider::-webkit-slider-thumb:hover {
            transform: scale(1.5);
        }

        #playlist-container {
            display: none;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            #music-player {
                width: 280px;
                left: 10px;
                bottom: 10px;
            }
        }

        @media (max-width: 480px) {
            #music-player {
                width: 50%;
                left: 0%;
                bottom: 10px;
            }
            
            .splash-title {
                font-size: 2.5rem;
            }
            
            .splash-subtitle {
                font-size: 1.3rem;
            }
        }