* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #0c1445 0%, #1a237e 30%, #283593 70%, #1a237e 100%);
            color: #fff;
            min-height: 100vh;
            overflow-x: hidden;
            perspective: 1000px;
        }
        
        /* 3D星空背景 */
        .space-scene {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            transform-style: preserve-3d;
        }
        
        .star {
            position: absolute;
            background-color: #fff;
            border-radius: 50%;
            animation: twinkle var(--duration, 4s) infinite ease-in-out;
        }
        
        @keyframes twinkle {
            0%, 100% { opacity: 0.2; }
            50% { opacity: 1; }
        }
        
        /* 导航栏 */
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 5%;
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            background: rgba(10, 15, 50, 0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(64, 224, 208, 0.2);
            transition: all 0.4s ease;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .logo-icon {
            font-size: 2.2rem;
            color: #40e0d0;
        }
        
        .logo-text {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(90deg, #40e0d0, #4facfe);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            letter-spacing: 1px;
        }
        
        nav ul {
            display: flex;
            list-style: none;
            gap: 2.5rem;
        }
        
        nav a {
            text-decoration: none;
            color: #e0f7fa;
            font-size: 1.1rem;
            font-weight: 500;
            position: relative;
            padding: 0.5rem 0;
            transition: color 0.3s;
        }
        
        nav a:hover {
            color: #40e0d0;
        }
        
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #40e0d0, #4facfe);
            transition: width 0.4s ease;
        }
        
        nav a:hover::after {
            width: 100%;
        }
        
        /* 主横幅 */
        .hero {
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 0 5%;
            position: relative;
            overflow: hidden;
        }
        
        .hero-content {
            max-width: 1106px;
            z-index: 10;
        }
        
        .hero h1 {
            font-size: 4.5rem;
            margin-bottom: 1.5rem;
            background: linear-gradient(90deg, #fff, #40e0d0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            opacity: 0;
            animation: fadeInUp 1s ease forwards;
        }
        
        .spirit-highlight {
            font-size: 3.5rem;
            display: block;
            margin: 30px 0;
            padding: 15px 0;
            position: relative;
        }
        
        .spirit-highlight span {
            display: inline-block;
            background: linear-gradient(90deg, #ff8a00, #ff2070);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            padding: 0 20px;
            position: relative;
            z-index: 2;
        }
        
        .hero p {
            font-size: 1.5rem;
            line-height: 1.8;
            margin-bottom: 2.5rem;
            color: #e0f7fa;
            opacity: 0;
            animation: fadeInUp 1s ease 0.3s forwards;
        }
        
        /* 手势交互区域 */
        .gesture-section {
            position: relative;
            height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.4);
            padding: 50px 5%;
        }
        
        .gesture-instruction {
            text-align: center;
            margin-bottom: 50px;
            max-width: 800px;
        }
        
        .gesture-instruction h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: #40e0d0;
        }
        
        .gesture-instruction p {
            font-size: 1.2rem;
            line-height: 1.8;
            color: #e0f7fa;
        }
        
        .torch-container {
            position: relative;
            width: 200px;
            height: 400px;
            margin: 0 auto;
        }
        
        .torch {
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 180px;
            background: linear-gradient(to right, #555, #333, #555);
            border-radius: 10px;
            z-index: 2;
        }
        
        .torch::before {
            content: '';
            position: absolute;
            top: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 40px;
            background: linear-gradient(to right, #888, #aaa, #888);
            border-radius: 30px 30px 0 0;
        }
        
        .flame {
                    position: absolute;
                    top: 90px;  /* 调整火焰垂直位置 */
                    left: 50%;  /* 水平居中 */
                    transform: translateX(-50%);  /* 精确居中 */
                    width: 100px;
                    height: 150px;
                    background: linear-gradient(to top, 
                        rgba(255, 80, 0, 0) 0%, 
                        rgba(255, 80, 0, 0.8) 30%,
                        rgba(255, 165, 0, 0.9) 70%,
                        rgba(255, 255, 0, 0.8) 100%);
                    border-radius: 50% 50% 20% 20%;
                    opacity: 0;
                    filter: blur(10px);
                    transition: opacity 0.3s;
                    z-index: 1;
                }
        
        .flame.active {
            opacity: 1;
            animation: flicker 0.8s infinite alternate ease-in-out;
            filter: blur(8px) brightness(1.2);
        }

        @keyframes flicker {
            0%, 100% { 
                transform: translateX(-50%) scale(1, 1);
                filter: blur(8px) brightness(1.1);
            }
            20% { 
                transform: translateX(-50%) scale(1.05, 0.98) translateX(2px);
            }
            40% {
                transform: translateX(-50%) scale(0.98, 1.05) translateX(-2px);
            }
            60% {
                transform: translateX(-50%) scale(1.03, 0.97);
            }
            80% {
                transform: translateX(-50%) scale(0.97, 1.03);
            }
        }
        
        .gesture-area {
            width: 300px;
            height: 300px;
            background: rgba(64, 224, 208, 0.1);
            border: 2px dashed rgba(64, 224, 208, 0.5);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 30px auto;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .gesture-area:hover {
            background: rgba(64, 224, 208, 0.2);
        }
        
        .gesture-icon {
            font-size: 5rem;
            color: rgba(255, 255, 255, 0.5);
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }
        
        /* 精神篇章 */
        .spirit-chapters {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            padding: 80px 5%;
        }
        
        .chapter-card {
            background: rgba(25, 35, 130, 0.4);
            border-radius: 15px;
            padding: 30px;
            transition: all 0.4s;
            border: 1px solid rgba(64, 224, 208, 0.2);
            position: relative;
            overflow: hidden;
            min-height: 400px;
            display: flex;
            flex-direction: column;
            transform: translateY(50px);
            opacity: 0;
        }
        
        .chapter-card.active {
            transform: translateY(0);
            opacity: 1;
            transition: transform 0.8s, opacity 0.8s;
        }
        
        .chapter-card:nth-child(1) .chapter-icon {
            color: #ff8a00;
        }
        
        .chapter-card:nth-child(2) .chapter-icon {
            color: #40e0d0;
        }
        
        .chapter-card:nth-child(3) .chapter-icon {
            color: #4facfe;
        }
        
        .chapter-card:nth-child(4) .chapter-icon {
            color: #ff2070;
        }
        
        .chapter-icon {
            font-size: 3.5rem;
            margin-bottom: 25px;
            text-align: center;
        }
        
        .chapter-card h3 {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .chapter-card h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: currentColor;
            border-radius: 2px;
        }
        
        .chapter-card p {
            color: #e0f7fa;
            line-height: 1.8;
            margin-bottom: 20px;
            flex-grow: 1;
        }
        
        .chapter-card .btn {
            display: block;
            text-align: center;
            padding: 12px 0;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            text-decoration: none;
            border-radius: 5px;
            transition: all 0.3s;
        }
        
        .chapter-card .btn:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-3px);
        }
        
        /* 对话系统 */
        .dialogue-section {
            padding: 100px 5%;
            background: rgba(0, 0, 0, 0.4);
            position: relative;
        }
        
        .section-title {
            text-align: center;
            font-size: 2.8rem;
            margin-bottom: 80px;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, #40e0d0, #4facfe);
            border-radius: 2px;
        }
        
        .dialogue-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            gap: 50px;
            align-items: center;
        }
        
        .character {
            flex: 1;
            display: flex;
            justify-content: center;
        }
        
        .character-img {
            width: 300px;
            height: 400px;
            border-radius: 10px;
            background: linear-gradient(45deg, #1a237e, #283593);
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        }
        
 
        
        .dialogue-box {
            flex: 1;
            background: rgba(25, 35, 130, 0.6);
            border-radius: 15px;
            padding: 30px;
            min-height: 300px;
            border: 1px solid rgba(64, 224, 208, 0.3);
        }
        
        .dialogue-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(64, 224, 208, 0.3);
        }
        
        .dialogue-header h3 {
            font-size: 1.8rem;
            color: #40e0d0;
        }
        
        .dialogue-content {
            line-height: 1.8;
            font-size: 1.1rem;
            color: #e0f7fa;
            min-height: 150px;
        }
        
        .dialogue-controls {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }
        
        .dialogue-btn {
            flex: 1;
            padding: 12px;
            background: rgba(64, 224, 208, 0.2);
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .dialogue-btn:hover {
            background: rgba(64, 224, 208, 0.4);
        }
        
        /* 数据图谱 */
        .data-section {
            padding: 100px 5%;
            position: relative;
        }
        
        .chart-container {
            max-width: 1000px;
            margin: 0 auto;
            background: rgba(25, 35, 130, 0.4);
            border-radius: 15px;
            padding: 30px;
            border: 1px solid rgba(64, 224, 208, 0.3);
        }
        
        /* 页脚 */
        footer {
            background: rgba(5, 10, 40, 0.95);
            padding: 60px 5% 30px;
            border-top: 1px solid rgba(64, 224, 208, 0.2);
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.5rem;
            margin-bottom: 25px;
            color: #40e0d0;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: linear-gradient(90deg, #40e0d0, #4facfe);
            border-radius: 2px;
        }
        
        .footer-column p, .footer-column li {
            color: #e0f7fa;
            line-height: 1.8;
            margin-bottom: 10px;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column li::before {
            content: '➤';
            color: #40e0d0;
            margin-right: 10px;
        }
        
        .social-links {
            display: flex;
            gap: 20px;
            margin-top: 20px;
        }
        
        .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            background: rgba(64, 224, 208, 0.1);
            border-radius: 50%;
            color: #40e0d0;
            font-size: 1.3rem;
            transition: all 0.3s;
        }
        
        .social-links a:hover {
            background: #40e0d0;
            color: #0c1445;
            transform: translateY(-5px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #e0f7fa;
            font-size: 0.9rem;
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero h1 {
                font-size: 3.5rem;
            }
            
            .spirit-highlight {
                font-size: 2.8rem;
            }
            
            .dialogue-container {
                flex-direction: column;
            }
        }
        
        @media (max-width: 768px) {
            header {
                padding: 1rem 5%;
            }
            
            nav ul {
                gap: 1.2rem;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .spirit-highlight {
                font-size: 2.2rem;
            }
            
            .hero p {
                font-size: 1.2rem;
            }
            
            .section-title {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 576px) {
            .logo-text {
                font-size: 1.5rem;
            }
            
            nav ul {
                gap: 0.8rem;
            }
            
            nav a {
                font-size: 0.9rem;
            }
            
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .spirit-highlight {
                font-size: 1.8rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
        }