* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }
        
        .mr-2 {
            margin-right: 8px;
        }
        
        /* 图标样式 */
        .icon {
            width: 1em;
            height: 1em;
            vertical-align: middle;
            fill: currentColor;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #0a0a1a;
            color: #e0e0e0;
            line-height: 1.6;
            max-width: 550px;
            margin: 0 auto;
            overflow-x: hidden;
            position: relative;
            min-height: 100vh;
            padding-bottom: 60px;
        }
        
        /* 波浪背景 */
        .wave-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, #3a00b0, #6c00cc, #b000cc, #00aacc);
            background-size: 600% 600%;
            animation: wave 15s ease infinite;
            z-index: -2;
            opacity: 0.1;
        }
        
        @keyframes wave {
            0%{background-position:0% 50%}
            50%{background-position:100% 50%}
            100%{background-position:0% 50%}
        }
        
        /* 粒子背景 */
        .bg-particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        .particle {
            position: absolute;
            border-radius: 50%;
            background: rgba(102, 126, 234, 0.3);
            animation: float 6s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% {
                transform: translateY(0) scale(1);
                opacity: 0.3;
            }
            50% {
                transform: translateY(-20px) scale(1.1);
                opacity: 0.6;
            }
        }
        
        /* 导航栏 */
        .navbar {
            position: fixed;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 100%;
            max-width: 550px;
            background: rgba(10, 10, 10, 0.8);
            backdrop-filter: blur(20px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            z-index: 1000;
            padding:5px 10px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #ffffff;
        }
        
        @keyframes neon {
            0% { background-position: 0; }
            100% { background-position: -200%; }
        }
        
        .nav-toggle {
            width: 45px;
            height: 45px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            gap: 6px;
        }
        
        .nav-toggle span {
            width: 25px;
            height: 2px;
            background: #ffffff;
            transition: all 0.3s ease;
        }
        
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }
        
        /* 导航菜单 */
        .nav-menu {
            position: fixed;
            top: 80px;
            left: 50%;
            transform: translateX(-50%) translateY(-100%);
            width: 100%;
            max-width: 550px;
            background: rgba(10, 10, 10, 0.95);
            backdrop-filter: blur(20px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
            z-index: 999;
            opacity: 0;
            transition: all 0.4s ease;
        }
        
        .nav-menu.active {
            transform: translateX(-50%) translateY(0);
            opacity: 1;
        }
        
        .nav-menu ul {
            list-style: none;
            padding: 20px;
        }
        
        .nav-menu li {
            margin-bottom: 15px;
        }
        
        .nav-menu a {
            display: block;
            padding: 12px 20px;
            color: #ffffff;
            text-decoration: none;
            border-radius: 5px;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }
        
        .nav-menu a::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.2), transparent);
            transition: left 0.5s ease;
        }
        
        .nav-menu a:hover::before {
            left: 100%;
        }
        
        .nav-menu a:hover {
            background: rgba(102, 126, 234, 0.1);
            transform: translateX(10px);
        }
        
        /* 主要内容 */
        .container {
            padding-top: 50px;
            padding-bottom: 50px;
        }
        
        /* 英雄区域 */
        .hero {
            min-height: 70vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 0 20px;
            position: relative;
            overflow: hidden;
        }
        
        /* 背景图容器 */
        .hero-background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
        }
        
        .bg-image {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-size: cover;
            background-position: center;
            opacity: 0;
            transition: opacity 1s ease-in-out;
        }
        
        .bg-image::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(rgba(10, 10, 26, 0.7), rgba(10, 10, 26, 0.8));
            z-index: 1;
        }
        
        .bg-image.active {
            opacity: 1;
        }
        
        .hero-content {
            max-width: 450px;
            animation: fadeInUp 1.2s ease-out;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #ffffff, #667eea, #f093fb, #ffffff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            background-size: 300% 100%;
            animation: gradientFlow 4s ease-in-out infinite;
        }
        
        @keyframes gradientFlow {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        .hero p {
            font-size: 1.3rem;
            margin-bottom: 40px;
            color: rgba(255, 255, 255, 0.8);
            animation: fadeIn 1.2s ease-out 0.3s both;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 25px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            text-decoration: none;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.4s ease;
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
            position: relative;
            overflow: hidden;
            animation: fadeIn 1.2s ease-out 0.6s both;
            cursor: pointer;
        }
        
        .cta-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.6s ease;
        }
        
        .cta-btn:hover::before {
            left: 100%;
        }
        
        .cta-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(102, 126, 234, 0.6);
        }

        /* 英雄箭头样式 */
        .hero-arrow {
            width: 0;
            height: 0;
            border-left: 15px solid transparent;
            border-right: 15px solid transparent;
            border-top: 20px solid rgba(255, 255, 255, 0.8);
            margin: 0 auto 20px;
            animation: bounce 2s infinite;
        }

        @keyframes bounce {
            0%, 20%, 50%, 80%, 100% {
                transform: translateY(0);
            }
            40% {
                transform: translateY(-10px);
            }
            60% {
                transform: translateY(-5px);
            }
        }

        /* 英雄按钮样式 */
        .hero-buttons {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin-top: 30px;
        }

        .cta-btn.secondary {
            background: transparent;
            border: 2px solid #5a6ee8;
        }

        .cta-btn.secondary:hover {
            background: rgba(90, 110, 232, 0.1);
        }

        /* 固定按钮样式 */
        .hero-buttons.fixed-bottom {
            position: fixed !important;
            bottom: 20px !important;
            z-index: 999 !important;
            background: rgba(10, 10, 26, 0.9) !important;
            padding: 15px !important;
            border-radius: 10px !important;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5) !important;
            backdrop-filter: blur(10px) !important;
            border: 1px solid rgba(90, 110, 232, 0.3) !important;
            margin-top: 0 !important;
            width: auto !important;
            max-width: 90% !important;
        }

        /* 克隆的固定按钮样式 */
        .fixed-buttons {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 999;
            background: rgba(10, 10, 26, 0.9);
            padding: 15px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(90, 110, 232, 0.3);
            display: flex;
            gap: 15px;
            justify-content: center;
            width: auto;
            max-width: 90%;
        }

        /* 固定按钮容器样式 */
        .fixed-buttons-container {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: #fff;
            padding: 10px 0;
            box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            justify-content: space-around;
            align-items: center;
            width: 100%;
        }
        
        /* 固定按钮样式 */
        .fixed-button {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            padding: 5px;
            flex: 1;
        }
        
        /* 固定按钮图标样式 */
        .fixed-button-icon {
            width: 24px;
            height: 24px;
            margin-bottom: 5px;
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
        }
        
        /* 客服图标 */
        .fixed-button-icon.home {
            background-image: url('sc/客服.svg');
        }
        
        /* 苹果图标 */
        .fixed-button-icon.apple {
            background-image: url('sc/苹果.svg');
        }
        
        /* 安卓图标 */
        .fixed-button-icon.android {
            background-image: url('sc/安卓.svg');
        }
        
        /* 首页图标 */
        .fixed-button-icon.home {
            background-image: url('sc/首页.svg');
        }
        
        /* 固定按钮文字样式 */
        .fixed-button-text {
            font-size: 12px;
            color: #333;
            text-align: center;
        }
        
        /* 模块卡片 3D磁吸效果 */
        .card {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 6px;
            padding: 22px;
            margin: 24px 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            transform-style: preserve-3d;
            perspective: 800px;
        }
        
        .card:hover {
            transform: translateY(-6px);
            box-shadow: 0 15px 40px rgba(138, 43, 226, 0.2);
        }
        
        .card-head {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 20px;
        }
        
        .card-icon {
            width: 40px;
            height: 40px;
            border-radius: 5px;
            background: linear-gradient(45deg, #6a00cc, #00d4e7);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }
        
        .card-title {
            font-size: 1.5rem;
            font-weight: 600;
            background: linear-gradient(90deg, #e7e7ff, #bdd1ff);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        /* 服务部分 */
        .services {
            padding: 60px 20px;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 15px;
            background: linear-gradient(90deg, #5a6ee8, #d083f8);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .section-title p {
            font-size: 1.1rem;
            color: rgba(224, 224, 224, 0.7);
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        
        .service-item {
            background: rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            padding: 20px 15px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .service-item:hover {
            background: rgba(106, 0, 204, 0.1);
            border-color: #6a00cc;
            transform: translateY(-5px);
        }
        
        .service-item i,
        .service-item svg.icon {
            font-size: 2rem;
            margin-bottom: 12px;
            background: linear-gradient(45deg, #00d4e7, #6a00cc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .service-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #00d4e7, #6a00cc);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 10px 30px rgba(106, 0, 204, 0.3);
            transition: all 0.3s ease;
        }
        
        .service-item:hover .service-icon {
            transform: scale(1.1);
            box-shadow: 0 15px 35px rgba(106, 0, 204, 0.4);
        }
        
        .service-icon img {
            width: 70%;
            height: 70%;
            filter: brightness(0) invert(1);
        }
        
        .service-item h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #e0e0e0;
        }
        
        .service-item p {
            font-size: 0.9rem;
            color: rgba(224, 224, 224, 0.6);
        }
        
        /* 案例部分 */
        .portfolio {
            padding: 60px 20px;
            background: rgba(10, 10, 20, 0.9);
        }
        
        .portfolio-tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        
        .tab-btn {
            padding: 12px 25px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(90, 110, 232, 0.3);
            border-radius: 10px;
            color: #e0e0e0;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 500;
        }
        
        .tab-btn.active {
            background: linear-gradient(135deg, #5a6ee8, #6a4ba2);
            border-color: transparent;
            box-shadow: 0 5px 15px rgba(90, 110, 232, 0.3);
        }
        
        .tab-btn:hover {
            background: rgba(90, 110, 232, 0.2);
            border-color: rgba(90, 110, 232, 0.5);
        }
        
        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        
        .portfolio-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 6px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            transition: all 0.4s ease;
            border: 1px solid rgba(90, 110, 232, 0.2);
        }
        
        .portfolio-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(90, 110, 232, 0.3);
            border-color: rgba(90, 110, 232, 0.5);
        }
        
        .portfolio-content {
            padding: 10px;
        }
        
        .portfolio-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: #e0e0e0;
            display: flex;
            align-items: center;
        }
        
        .portfolio-item h3 img.icon {
            width: 24px;
            height: 24px;
            margin-right: 8px;
            vertical-align: middle;
            filter: brightness(0) invert(1);
        }
        
        .portfolio-item p {
            color: rgba(224, 224, 224, 0.7);
            margin-bottom: 15px;
        }
        
        /* 音频样式 */
        .audio-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1px 5px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 5px;
            margin-bottom: 8px;
            cursor: pointer;
            transition: 0.3s;
            border: 1px solid transparent;
        }
        
        .audio-list {
            display: flex;
            flex-direction: column;
            gap: 1px;
        }
        
        .audio-item.active {
            border-color: #00d4e7;
            background: rgba(0, 212, 231, 0.08);
        }
        
        .audio-title {
            font-size: 12px;
            flex: 1;
            color: #e0e0e0;
        }
        
        .audio-controls {
            display: flex;
            align-items: center;
            gap: 2px;
            padding: 6px 2px;
            border-radius: 5px;
        }
        
        .play {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: linear-gradient(45deg, #cc0099, #00d4e7);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: 0.2s;
            font-size: 11px;
        }
        
        .play:active {
            transform: scale(0.9);
        }
        
        .audio-separator {
            width: 1px;
            height: 16px;
            background: rgba(224, 224, 224, 0.3);
        }
        
        .audio-more {
            color: rgba(224, 224, 224, 0.7);
            font-size: 14px;
        }
        
        audio {
            display: none;
        }
        
        /* 视频 */
        .video-item {
            position: relative;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: 0.3s;
        }
        
        .video-container {
            position: relative;
            padding: 0;
        }
        
        .video-player {
            position: relative;
            width: 100%;
            border-radius: 4px;
            overflow: hidden;
            background: rgba(0, 0, 0, 0.6);
        }
        
        video {
            width: 100%;
            display: block;
            cursor: pointer;
        }
        
        .video-play-button {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(90, 110, 232, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 10;
        }
        
        .video-play-button:hover {
            background: rgba(90, 110, 232, 1);
            transform: translate(-50%, -50%) scale(1.1);
        }
        
        .video-play-button i,
        .video-play-button svg.icon {
            font-size: 24px;
            color: white;
        }
        
        /* 优势部分 */
        .advantages {
            padding: 60px 20px;
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        
        .advantage-item {
            background: rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            padding: 20px 15px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .advantage-item:hover {
            background: rgba(106, 0, 204, 0.1);
            border-color: #6a00cc;
            transform: translateY(-5px);
        }
        
        .advantage-item i,
        .advantage-item svg.icon {
            font-size: 2rem;
            margin-bottom: 12px;
            background: linear-gradient(45deg, #00d4e7, #6a00cc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .advantage-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #00d4e7, #6a00cc);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 10px 30px rgba(106, 0, 204, 0.3);
            transition: all 0.3s ease;
        }
        
        .advantage-item:hover .advantage-icon {
            transform: scale(1.1);
            box-shadow: 0 15px 35px rgba(106, 0, 204, 0.4);
        }
        
        .advantage-icon img {
            width: 100%;
            height: 100%;
            filter: brightness(0) invert(1);
        }
        
        .advantage-item h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #e0e0e0;
        }
        
        .advantage-item p {
            font-size: 0.9rem;
            color: rgba(224, 224, 224, 0.6);
        }
        
        /* 导师部分 */
        .tutors {
            padding: 60px 20px;
            background: rgba(10, 10, 20, 0.9);
        }
        
        .tutors-slider {
            display: flex;
            overflow-x: auto;
            gap: 20px;
            padding-bottom: 20px;
            scrollbar-width: none;
            -ms-overflow-style: none;
            scroll-behavior: smooth;
        }
        
        .tutors-slider::-webkit-scrollbar {
            display: none;
        }
        
        .tutor-card {
            flex: 0 0 200px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 5px;
            padding: 15px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            transition: all 0.4s ease;
            border: 1px solid rgba(90, 110, 232, 0.2);
        }
        
        .tutor-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(90, 110, 232, 0.3);
            border-color: rgba(90, 110, 232, 0.5);
        }
        
        .tutor-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: linear-gradient(135deg, #5a6ee8, #6a4ba2);
            margin: 0 auto 15px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 2rem;
            font-weight: bold;
            box-shadow: 0 10px 25px rgba(90, 110, 232, 0.4);
            transition: all 0.3s ease;
        }
        
        .tutor-card:hover .tutor-avatar {
            transform: scale(1.1) rotate(5deg);
        }
        
        .tutor-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 5px;
            color: #e0e0e0;
        }
        
        .tutor-card p {
            color: rgba(224, 224, 224, 0.7);
            font-size: 0.9rem;
            margin-bottom: 10px;
        }
        
        .tutor-rating {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 10px;
        }
        
        .tutor-rating .stars {
            color: #ffd700;
            margin-right: 5px;
        }
        
        .tutor-rating .rating {
            color: #e0e0e0;
            font-weight: 600;
        }
        
        .tutor-price {
            color: #ff6b6b;
            font-size: 1.1rem;
            font-weight: 600;
            text-align: center;
            margin-bottom: 15px;
        }
        
        .tutor-btn {
            display: block;
            width: 100%;
            padding: 10px;
            background: linear-gradient(135deg, #5a6ee8, #6a4ba2);
            color: white;
            border: none;
            border-radius: 5px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .tutor-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(90, 110, 232, 0.3);
        }
        
        /* 设备部分 */
        .equipment {
            padding: 60px 20px;
        }
        
        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px;
        }
        
        .equipment-item {
            background: rgba(255, 255, 255, 0.08);
            border-radius: 6px;
            padding:10px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        
        .equipment-item:hover {
            background: rgba(106, 0, 204, 0.1);
            border-color: #6a00cc;
            transform: translateY(-5px);
        }
        
        .equipment-item-link {
            display: block;
            text-decoration: none;
            color: inherit;
        }
        
        .equipment-item-link:hover {
            text-decoration: none;
        }
        
        .equipment-item i,
        .equipment-item svg.icon {
            font-size: 2rem;
            margin-bottom: 12px;
            background: linear-gradient(45deg, #00d4e7, #6a00cc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .equipment-image {
            background-size: contain;
            background-position: center;
            background-repeat: no-repeat;
            height: 105px;
            margin-bottom: 15px;
        }
        
        .equipment-item h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: #e0e0e0;
        }
        
        .equipment-item p {
            font-size: 0.9rem;
            color: rgba(224, 224, 224, 0.6);
        }
        
        /* 常见问题部分 */
        .faq {
            padding: 60px 20px;
            background: rgba(10, 10, 20, 0.9);
        }
        
        .faq-item {
            background: rgba(255, 255, 255, 0.06);
            border-radius: 5px;
            margin-bottom: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            overflow: hidden;
            border: 1px solid rgba(90, 110, 232, 0.2);
        }
        
        .faq-question {
            padding: 8px 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s ease;
        }
        
        .faq-question:hover {
            background: rgba(90, 110, 232, 0.1);
        }
        
        .faq-question h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #e0e0e0;
        }
        
        .faq-question i {
            color: #5a6ee8;
            transition: transform 0.3s ease;
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.4s ease;
        }
        
        .faq-answer.active {
            padding: 0 20px 20px;
            max-height: 400px;
        }
        
        .faq-answer p {
            color: rgba(224, 224, 224, 0.7);
            line-height: 1.6;
        }
        
        /* 售后保证部分 */
        .warranty {
            padding: 60px 20px;
        }
        
        .warranty-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        
        .warranty-item {
            background: linear-gradient(135deg, rgba(90, 110, 232, 0.15), rgba(208, 131, 248, 0.15));
            border-radius: 5px;
            padding: 20px;
            box-shadow: 0 10px 30px rgba(90, 110, 232, 0.2);
            transition: all 0.4s ease;
            border: 1px solid rgba(90, 110, 232, 0.3);
        }
        
        .warranty-item:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(90, 110, 232, 0.3);
            border-color: rgba(90, 110, 232, 0.5);
        }
        
        .warranty-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
        }
        
        .warranty-item i {
            font-size: 1.8rem;
            color: #5a6ee8;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        
        .warranty-item:hover i {
            transform: scale(1.2) rotate(10deg);
            color: #d083f8;
        }
        
        .warranty-header img.icon {
            width: 40px;
            height: 40px;
            color: #5a6ee8;
            transition: all 0.3s ease;
            flex-shrink: 0;
            filter: brightness(0) invert(1);
        }
        
        .warranty-item:hover img.icon {
            transform: scale(1.2) rotate(10deg);
            color: #d083f8;
        }
        
        .warranty-item h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #e0e0e0;
        }
        
        .warranty-item p {
            color: rgba(224, 224, 224, 0.7);
            line-height: 1.6;
            font-size: 0.95rem;
        }
        
        /* 页脚 */
        footer {
            background: rgba(10, 10, 10, 0.95);
            color: white;
            padding: 40px 20px;
            text-align: center;
            border-top: 1px solid rgba(102, 126, 234, 0.2);
            position: relative;
            bottom: 0;
            width: 100%;
            max-width: 550px;
            margin: 0 auto;
        }
        
        .footer-content {
            max-width: 450px;
            margin: 0 auto;
        }
        
        .footer-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            background: linear-gradient(90deg, #667eea, #f093fb);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .footer-content p {
            margin-bottom: 20px;
            color: rgba(255, 255, 255, 0.7);
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 20px;
        }
        
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            color: white;
            font-size: 1.2rem;
            transition: all 0.4s ease;
            border: 1px solid rgba(102, 126, 234, 0.3);
        }
        
        .social-links a:hover {
            transform: translateY(-5px);
            background: linear-gradient(135deg, #667eea, #764ba2);
            box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
            border-color: transparent;
        }
        
        .copyright {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
        }
        
        /* 响应式设计 */
        @media (max-width: 550px) {
            .hero h1 {
                font-size: 2.5rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .services,
            .portfolio,
            .advantages,
            .tutors,
            .equipment,
            .faq,
            .warranty {
                padding: 50px 10px;
            }
        }
        
        /* 滚动条样式 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(25, 25, 40, 0.8);
        }
        
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(135deg, #764ba2, #667eea);
        }
        
        /* 滚动动画 */
        .fade {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.7s cubic-bezier(0.33, 1, 0.68, 1);
        }
        
        .fade.show {
            opacity: 1;
            transform: translateY(0);
        }