* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        :root {
            --primary-purple: #6c2bd9;
            --deep-purple: #4a1b9e;
            --dark-purple: #2d115c;
            --gold: #ffd700;
            --light-gold: #ffed4e;
            --white: #ffffff;
            --light-gray: #f0f0f5;
            --dark-bg: #0a0a1a;
        }
        
        body {
            background-color: var(--dark-bg);
            color: var(--white);
            overflow-x: hidden;
            min-height: 100vh;
            scroll-behavior: smooth;
        }

        /* 业务板块通用样式 */
        .business-section {
            padding: 6rem 3rem;
            position: relative;
            z-index: 10;
            background: var(--dark-bg);
            border-bottom: 1px solid rgba(108, 43, 217, 0.1);
        }
        
        .business-section:nth-child(even) {
            background: linear-gradient(180deg, #0f0f24 0%, var(--dark-bg) 100%);
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 4rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .section-header h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, var(--white), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 700;
        }
        
        .section-header p {
            color: #aaa;
            font-size: 1.1rem;
            line-height: 1.6;
        }
        
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .tech-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(108, 43, 217, 0.2);
            border-radius: 16px;
            padding: 2rem;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        
        .tech-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.15), transparent 60%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        
        .tech-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-purple);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        
        .tech-card:hover::before {
            opacity: 1;
        }
        
        .tech-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 1.5rem;
            background: rgba(255, 215, 0, 0.1);
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
        }
        
        .tech-card h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--white);
        }
        
        .tech-card p {
            color: #ccc;
            line-height: 1.6;
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }
        
        .tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        
        .tech-tag {
            background: rgba(108, 43, 217, 0.2);
            color: var(--light-gold);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-family: 'Consolas', monospace;
        }
        
        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(10, 10, 26, 0.95);
            backdrop-filter: blur(15px);
            z-index: 1000;
            padding: 1.2rem 3rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(108, 43, 217, 0.3);
            box-shadow: 0 5px 25px rgba(108, 43, 217, 0.2);
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        
        .logo i {
            color: var(--primary-purple);
            font-size: 2.2rem;
        }
        
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        
        .logo-subtitle {
            font-size: 0.7rem;
            color: #aaa;
            font-weight: 400;
            letter-spacing: 1px;
        }
        
        .nav-right {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        
        nav ul {
            display: flex;
            list-style: none;
            gap: 2.5rem;
        }
        
        nav a {
            color: #ddd;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            position: relative;
            font-size: 0.95rem;
            padding: 0.5rem 0;
        }
        
        nav a:hover {
            color: var(--gold);
        }

        nav a.active {
            color: var(--gold);
        }
        
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-purple), var(--gold));
            transition: width 0.3s;
        }
        
        nav a:hover::after {
            width: 100%;
        }

        nav a.active::after {
            width: 100%;
        }
        
        .cta-button {
            background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple));
            color: var(--white);
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5);
            background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple));
        }
        
        /* 语言选择器 */
        .language-selector {
            position: relative;
        }
        
        .language-button {
            background: transparent;
            border: 1px solid rgba(108, 43, 217, 0.5);
            color: #ddd;
            width: 50px;
            height: 40px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        
        .language-button:hover {
            border-color: var(--gold);
            color: var(--gold);
        }
        
        .language-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: rgba(20, 20, 40, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 10px;
            padding: 0.5rem;
            min-width: 120px;
            border: 1px solid rgba(108, 43, 217, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            display: none;
            z-index: 1001;
        }
        
        .language-dropdown.show {
            display: block;
        }
        
        .language-option {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s;
            color: #ddd;
        }
        
        .language-option:hover {
            background: rgba(108, 43, 217, 0.2);
            color: var(--gold);
        }
        
        .language-option.active {
            background: rgba(108, 43, 217, 0.3);
            color: var(--gold);
        }
        
        /* 主容器 */
        .container {
            padding-top: 80px;
        }
        
        /* 首页 - 3D地球区 */
        .home-section {
            height: 100vh;
            position: relative;
            overflow: hidden;
            background: linear-gradient(180deg, var(--dark-bg) 0%, #1a1a2e 100%);
        }
        
        /* 地球容器 */
        #earthContainer {
            width: 100%;
            height: 100%;
            position: absolute;
            top: 0;
            left: 0;
            z-index: 1;
        }
        
        /* 可切换的地球信息面板 */
        .earth-info-panel {
            position: absolute;
            top: 50%;
            left: 10%;
            transform: translateY(-50%);
            z-index: 2;
            width: 100%;
            max-width: 500px;
            background: rgba(10, 10, 26, 0.85);
            backdrop-filter: blur(15px);
            padding: 3rem;
            border-radius: 20px;
            border: 1px solid rgba(108, 43, 217, 0.4);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
            transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
            overflow: hidden;
        }

        .earth-info-panel .mini-content {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.2s 0s;
            display: flex;
            align-items: center;
            gap: 10px;
            width: 100%;
            justify-content: center;
            white-space: nowrap;
            color: var(--white);
            font-size: 1.1rem;
            font-weight: 600;
        }

        .earth-info-panel .full-content {
            opacity: 1;
            transition: opacity 0.3s 0.3s;
            width: 100%;
        }

        /* 缩小/自动隐藏状态 */
        .earth-info-panel.minimized {
            top: 85%;
            left: 30px;
            transform: translateY(0);
            max-width: 160px;
            padding: 0;
            height: 56px;
            border-radius: 28px;
            background: rgba(20, 20, 40, 0.95);
            border-color: var(--gold);
            cursor: pointer;
        }

        .earth-info-panel.minimized:hover {
            transform: scale(1.05);
            box-shadow: 0 0 20px rgba(108, 43, 217, 0.6);
        }

        .earth-info-panel.minimized .full-content {
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.2s 0s;
        }

        .earth-info-panel.minimized .mini-content {
            opacity: 1;
            pointer-events: auto;
            transition: opacity 0.3s 0.3s;
        }
        
        .earth-info-panel.hidden {
            opacity: 0;
            transform: translateY(-50%) translateX(-100%);
            pointer-events: none;
        }
        
        .panel-toggle {
            position: absolute;
            top: 20px;
            right: -60px;
            width: 50px;
            height: 50px;
            background: rgba(10, 10, 26, 0.85);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(108, 43, 217, 0.4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--gold);
            font-size: 1.5rem;
            cursor: pointer;
            z-index: 3;
            transition: all 0.3s;
        }
        
        .panel-toggle:hover {
            background: rgba(108, 43, 217, 0.3);
            transform: scale(1.1);
        }
        
        .earth-info-panel .tagline {
            color: var(--gold);
            font-size: 1rem;
            letter-spacing: 3px;
            margin-bottom: 1rem;
            text-transform: uppercase;
        }
        
        .earth-info-panel h1 {
            font-size: 3.5rem;
            font-weight: 700;
            line-height: 1.1;
            margin-bottom: 1.5rem;
            background: linear-gradient(90deg, var(--gold), var(--light-gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 5px 15px rgba(255, 215, 0, 0.2);
        }
        
        .earth-info-panel h1 span {
            display: block;
            color: var(--white);
            -webkit-text-fill-color: var(--white);
            font-size: 2.8rem;
        }
        
        .earth-info-panel p {
            color: #ccc;
            line-height: 1.7;
            margin-bottom: 2.5rem;
            font-size: 1.1rem;
        }
        
        .hero-buttons {
            display: flex;
            gap: 1.5rem;
        }
        
        .btn-primary {
            background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple));
            color: var(--white);
            border: none;
            padding: 1rem 2.5rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3);
        }
        
        .btn-primary:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(108, 43, 217, 0.5);
            background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple));
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--gold);
            border: 2px solid var(--gold);
            padding: 1rem 2.5rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .btn-secondary:hover {
            background: rgba(255, 215, 0, 0.1);
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(255, 215, 0, 0.2);
        }
        
        .earth-instructions {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            background: rgba(10, 10, 26, 0.7);
            backdrop-filter: blur(10px);
            padding: 1rem 2rem;
            border-radius: 30px;
            border: 1px solid rgba(108, 43, 217, 0.3);
            color: #aaa;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        /* 国家提示框 */
        .country-tooltip {
            position: absolute;
            background: rgba(10, 10, 26, 0.9);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(108, 43, 217, 0.5);
            border-radius: 10px;
            padding: 1rem 1.5rem;
            color: white;
            font-size: 1rem;
            z-index: 100;
            pointer-events: none;
            transform: translate(-50%, -100%);
            min-width: 200px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .country-tooltip.show {
            opacity: 1;
        }
        
        .tooltip-title {
            color: var(--gold);
            font-weight: 600;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .tooltip-desc {
            color: #ccc;
            font-size: 0.9rem;
            margin-bottom: 0.8rem;
            line-height: 1.4;
        }
        
        .tooltip-button {
            background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple));
            color: white;
            border: none;
            border-radius: 20px;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            cursor: pointer;
            width: 100%;
            transition: all 0.3s;
        }
        
        .tooltip-button:hover {
            background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple));
        }
        
        /* 国家详情页 */
        .country-detail-page {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 2000;
            background: var(--dark-bg);
            overflow-y: auto;
        }
        
        .country-header {
            padding: 2rem 3rem;
            background: linear-gradient(180deg, rgba(108, 43, 217, 0.1) 0%, transparent 100%);
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(108, 43, 217, 0.3);
        }
        
        .country-title {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .country-flag {
            font-size: 3rem;
            color: var(--gold);
        }
        
        .country-name {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--white);
        }
        
        .country-subtitle {
            color: var(--gold);
            font-size: 1.2rem;
            margin-top: 5px;
        }
        
        .back-button {
            background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple));
            color: var(--white);
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .back-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5);
        }
        
        .country-content {
            padding: 3rem;
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 3rem;
        }
        
        .services-section {
            background: rgba(20, 20, 40, 0.7);
            border-radius: 20px;
            padding: 2.5rem;
            border: 1px solid rgba(108, 43, 217, 0.3);
        }
        
        .section-title {
            font-size: 1.8rem;
            color: var(--gold);
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid rgba(108, 43, 217, 0.3);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .services-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }
        
        .service-card {
            background: rgba(108, 43, 217, 0.1);
            border-radius: 15px;
            padding: 1.5rem;
            transition: all 0.3s;
            border: 1px solid rgba(108, 43, 217, 0.2);
        }
        
        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--gold);
            box-shadow: 0 10px 25px rgba(108, 43, 217, 0.3);
        }
        
        .service-icon {
            font-size: 2.5rem;
            color: var(--gold);
            margin-bottom: 1rem;
        }
        
        .service-card h3 {
            color: var(--white);
            margin-bottom: 0.8rem;
            font-size: 1.3rem;
        }
        
        .service-card p {
            color: #ccc;
            line-height: 1.6;
            font-size: 0.95rem;
        }
        
        .exchange-section {
            background: rgba(20, 20, 40, 0.7);
            border-radius: 20px;
            padding: 2.5rem;
            border: 1px solid rgba(108, 43, 217, 0.3);
            margin-bottom: 2rem;
        }
        
        .currency-converter {
            background: rgba(10, 10, 26, 0.5);
            border-radius: 15px;
            padding: 2rem;
            margin-bottom: 2rem;
        }
        
        .currency-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .currency-input {
            flex: 1;
            min-width: 0;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(108, 43, 217, 0.5);
            border-radius: 10px;
            padding: 1rem;
            color: var(--white);
            font-size: 1.1rem;
        }
        
        .currency-select {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(108, 43, 217, 0.5);
            border-radius: 10px;
            padding: 1rem;
            color: var(--white);
            width: 160px;
            flex: 0 0 160px;
        }

        .currency-fixed {
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(108, 43, 217, 0.5);
            border-radius: 10px;
            padding: 1rem;
            color: var(--white);
            width: 160px;
            flex: 0 0 160px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            white-space: nowrap;
        }
        
        .exchange-result {
            text-align: center;
            padding: 1.5rem;
            background: rgba(108, 43, 217, 0.2);
            border-radius: 15px;
            margin-top: 1.5rem;
        }
        
        .rate-value {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--gold);
            margin: 1rem 0;
        }
        
        .rate-info {
            color: #aaa;
            font-size: 0.9rem;
        }
        
        .requirements-section {
            background: rgba(20, 20, 40, 0.7);
            border-radius: 20px;
            padding: 2.5rem;
            border: 1px solid rgba(108, 43, 217, 0.3);
        }
        
        .requirements-list {
            list-style: none;
        }
        
        .requirements-list li {
            padding: 1rem 0;
            border-bottom: 1px solid rgba(108, 43, 217, 0.2);
            color: #ccc;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .requirements-list li i {
            color: var(--gold);
        }
        
        .cta-section {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem;
            background: linear-gradient(90deg, rgba(108, 43, 217, 0.2), rgba(255, 215, 0, 0.1));
            border-radius: 20px;
            margin-top: 2rem;
        }
        
        .cta-section h2 {
            font-size: 2.5rem;
            color: var(--white);
            margin-bottom: 1.5rem;
        }
        
        .cta-section p {
            color: #ccc;
            max-width: 700px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
            font-size: 1.1rem;
        }
        
        /* 快捷按钮 */
        .quick-buttons {
            position: fixed;
            right: 30px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }
        
        .quick-button {
            width: 55px;
            height: 55px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-purple), var(--deep-purple));
            color: white;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(108, 43, 217, 0.4);
        }
        
        .quick-button:hover {
            transform: translateY(-5px) scale(1.1);
            box-shadow: 0 10px 25px rgba(108, 43, 217, 0.6);
        }
        
        .quick-button.secondary {
            background: linear-gradient(135deg, var(--gold), var(--light-gold));
            color: var(--dark-bg);
        }
        
        /* 页脚 */
        footer {
            background: rgba(10, 10, 26, 0.95);
            padding: 4rem 3rem 2rem;
            border-top: 1px solid rgba(108, 43, 217, 0.3);
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        
        .footer-column h3 {
            color: var(--gold);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column li {
            margin-bottom: 10px;
        }
        
        .footer-column a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .footer-column a:hover {
            color: var(--gold);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #888;
            font-size: 0.9rem;
        }
        
        /* 加载动画 */
        .loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--dark-bg);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 3000;
        }
        
        .loading-spinner {
            width: 80px;
            height: 80px;
            border: 5px solid rgba(108, 43, 217, 0.3);
            border-top-color: var(--gold);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 2rem;
        }
        
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        
        .loading-text {
            color: var(--gold);
            font-size: 1.2rem;
            letter-spacing: 2px;
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .country-content {
                grid-template-columns: 1fr;
            }
            
            .earth-info-panel {
                left: 5%;
            }
        }
        
        @media (max-width: 992px) {
            .earth-info-panel {
                position: relative;
                top: 0;
                left: 0;
                transform: none;
                max-width: 90%;
                margin: 120px auto 0;
                padding: 2rem;
            }
            
            .panel-toggle {
                display: none;
            }
            
            .hero-buttons {
                flex-direction: column;
                gap: 1rem;
            }
            
            .btn-primary, .btn-secondary {
                justify-content: center;
            }
            
            .services-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                gap: 1rem;
                padding: 1rem;
            }
            
            .nav-right {
                width: 100%;
                justify-content: space-between;
            }
            
            nav ul {
                gap: 1rem;
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .earth-info-panel h1 {
                font-size: 2.5rem;
            }
            
            .earth-info-panel h1 span {
                font-size: 2rem;
            }
            
            .country-content {
                padding: 2rem 1rem;
            }
            
            .country-header {
                flex-direction: column;
                gap: 1.5rem;
                align-items: flex-start;
            }
            
            .country-name {
                font-size: 2rem;
            }
            
            .quick-buttons {
                right: 15px;
                bottom: 15px;
            }
            
            .quick-button {
                width: 45px;
                height: 45px;
                font-size: 1.2rem;
            }
        }

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; }
        :root { --primary-purple: #6c2bd9; --deep-purple: #4a1b9e; --dark-purple: #2d115c; --gold: #ffd700; --light-gold: #ffed4e; --white: #ffffff; --light-gray: #f0f0f5; --dark-bg: #0a0a1a; }
        body { background-color: var(--dark-bg); color: var(--white); overflow-x: hidden; min-height: 100vh; scroll-behavior: smooth; }
        header { position: fixed; top: 0; width: 100%; background: rgba(10, 10, 26, 0.95); backdrop-filter: blur(15px); z-index: 1000; padding: 1.2rem 3rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 5px 25px rgba(108, 43, 217, 0.2); }
        .logo { display: flex; align-items: center; gap: 12px; font-size: 1.8rem; font-weight: 700; color: var(--gold); text-transform: uppercase; letter-spacing: 2px; }
        .logo i { color: var(--primary-purple); font-size: 2.2rem; }
        .logo-text { display: flex; flex-direction: column; line-height: 1.2; }
        .logo-subtitle { font-size: 0.7rem; color: #aaa; font-weight: 400; letter-spacing: 1px; }
        .nav-right { display: flex; align-items: center; gap: 1.5rem; }
        nav ul { display: flex; list-style: none; gap: 2.5rem; }
        nav a { color: #ddd; text-decoration: none; font-weight: 500; transition: all 0.3s; position: relative; font-size: 0.95rem; padding: 0.5rem 0; }
        nav a:hover { color: var(--gold); }
        nav a.active { color: var(--gold); }
        nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: linear-gradient(90deg, var(--primary-purple), var(--gold)); transition: width 0.3s; }
        nav a:hover::after { width: 100%; }
        nav a.active::after { width: 100%; }
        .cta-button { background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple)); color: var(--white); border: none; padding: 0.8rem 1.8rem; border-radius: 30px; font-weight: 600; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; gap: 8px; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3); }
        .cta-button:hover { transform: translateY(-3px); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5); background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple)); }
        .language-selector { position: relative; }
        .language-button { background: transparent; border: 1px solid rgba(108, 43, 217, 0.5); color: #ddd; width: 50px; height: 40px; border-radius: 20px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s; }
        .language-button:hover { border-color: var(--gold); color: var(--gold); }
        .language-dropdown { position: absolute; top: 100%; right: 0; margin-top: 10px; background: rgba(20, 20, 40, 0.95); backdrop-filter: blur(10px); border-radius: 10px; padding: 0.5rem; min-width: 120px; border: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); display: none; z-index: 1001; }
        .language-dropdown.show { display: block; }
        .language-option { display: flex; align-items: center; gap: 10px; padding: 0.8rem 1rem; border-radius: 8px; cursor: pointer; transition: all 0.3s; color: #ddd; }
        .language-option:hover { background: rgba(108, 43, 217, 0.2); color: var(--gold); }
        .language-option.active { background: rgba(108, 43, 217, 0.3); color: var(--gold); }
        .container { padding-top: 80px; }
        .business-section { padding: 6rem 3rem; position: relative; z-index: 10; background: var(--dark-bg); border-bottom: 1px solid rgba(108, 43, 217, 0.1); }
        .business-section:nth-child(even) { background: linear-gradient(180deg, #0f0f24 0%, var(--dark-bg) 100%); }
        .section-header { text-align: center; margin-bottom: 4rem; max-width: 800px; margin-left: auto; margin-right: auto; }
        .section-header h2 { font-size: 2.5rem; margin-bottom: 1rem; background: linear-gradient(90deg, var(--white), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }
        .section-header p { color: #aaa; font-size: 1.1rem; line-height: 1.6; }
        .tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }
        .tech-card { background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(108, 43, 217, 0.2); border-radius: 16px; padding: 2rem; transition: all 0.4s ease; position: relative; overflow: hidden; }
        .tech-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.15), transparent 60%); opacity: 0; transition: opacity 0.4s ease; }
        .tech-card:hover { transform: translateY(-10px); border-color: var(--primary-purple); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
        .tech-card:hover::before { opacity: 1; }
        .tech-icon { font-size: 2rem; color: var(--gold); margin-bottom: 1.5rem; background: rgba(255, 215, 0, 0.1); width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 12px; }
        .tech-card h3 { font-size: 1.4rem; margin-bottom: 1rem; color: var(--white); }
        .tech-card p { color: #ccc; line-height: 1.6; margin-bottom: 1.5rem; font-size: 0.95rem; }
        .tech-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
        .tech-tag { background: rgba(108, 43, 217, 0.2); color: var(--light-gold); padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; font-family: 'Consolas', monospace; }
        .quick-buttons { position: fixed; right: 30px; bottom: 30px; display: flex; flex-direction: column; gap: 15px; z-index: 999; }
        .quick-button { width: 55px; height: 55px; border-radius: 50%; background: linear-gradient(135deg, var(--primary-purple), var(--deep-purple)); color: white; border: none; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; cursor: pointer; transition: all 0.3s; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.4); }
        .quick-button:hover { transform: translateY(-5px) scale(1.1); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.6); }
        .quick-button.secondary { background: linear-gradient(135deg, var(--gold), var(--light-gold)); color: var(--dark-bg); }
        footer { background: rgba(10, 10, 26, 0.95); padding: 4rem 3rem 2rem; border-top: 1px solid rgba(108, 43, 217, 0.3); }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 3rem; margin-bottom: 3rem; }
        .footer-column h3 { color: var(--gold); margin-bottom: 1.5rem; font-size: 1.3rem; }
        .footer-column ul { list-style: none; }
        .footer-column li { margin-bottom: 10px; color: #ccc; }
        .footer-column a { color: #ccc; text-decoration: none; transition: color 0.3s; }
        .footer-column a:hover { color: var(--gold); }
        .footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.1); color: #888; font-size: 0.9rem; }
        .loading { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--dark-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 3000; }
        .loading-spinner { width: 80px; height: 80px; border: 5px solid rgba(108, 43, 217, 0.3); border-top-color: var(--gold); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 2rem; }
        @keyframes spin { to { transform: rotate(360deg); } }
        .loading-text { color: var(--gold); font-size: 1.2rem; letter-spacing: 2px; }
        @media (max-width: 768px) {
            header { flex-direction: column; gap: 1rem; padding: 1rem; }
            .nav-right { width: 100%; justify-content: space-between; gap: 1rem; }
            nav ul { gap: 1rem; flex-wrap: wrap; justify-content: center; }
            .business-section { padding: 5rem 1.2rem; }
            footer { padding: 3rem 1.2rem 2rem; }
            .quick-buttons { right: 15px; bottom: 15px; }
            .quick-button { width: 45px; height: 45px; font-size: 1.2rem; }
        }

* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        :root {
            --primary-purple: #6c2bd9;
            --deep-purple: #4a1b9e;
            --dark-purple: #2d115c;
            --gold: #ffd700;
            --light-gold: #ffed4e;
            --white: #ffffff;
            --light-gray: #f0f0f5;
            --dark-bg: #0a0a1a;
        }
        body {
            background-color: var(--dark-bg);
            color: var(--white);
            overflow-x: hidden;
            min-height: 100vh;
            scroll-behavior: smooth;
        }
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(10, 10, 26, 0.95);
            backdrop-filter: blur(15px);
            z-index: 1000;
            padding: 1.2rem 3rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(108, 43, 217, 0.3);
            box-shadow: 0 5px 25px rgba(108, 43, 217, 0.2);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        .logo i {
            color: var(--primary-purple);
            font-size: 2.2rem;
        }
        .logo-text {
            display: flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-subtitle {
            font-size: 0.7rem;
            color: #aaa;
            font-weight: 400;
            letter-spacing: 1px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 2.5rem;
        }
        nav a {
            color: #ddd;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            position: relative;
            font-size: 0.95rem;
            padding: 0.5rem 0;
        }
        nav a:hover {
            color: var(--gold);
        }
        nav a.active {
            color: var(--gold);
        }
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-purple), var(--gold));
            transition: width 0.3s;
        }
        nav a:hover::after {
            width: 100%;
        }
        nav a.active::after {
            width: 100%;
        }
        .cta-button {
            background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple));
            color: var(--white);
            border: none;
            padding: 0.8rem 1.8rem;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3);
        }
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5);
            background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple));
        }
        .language-selector {
            position: relative;
        }
        .language-button {
            background: transparent;
            border: 1px solid rgba(108, 43, 217, 0.5);
            color: #ddd;
            width: 50px;
            height: 40px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s;
        }
        .language-button:hover {
            border-color: var(--gold);
            color: var(--gold);
        }
        .language-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: rgba(20, 20, 40, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 10px;
            padding: 0.5rem;
            min-width: 120px;
            border: 1px solid rgba(108, 43, 217, 0.3);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            display: none;
            z-index: 1001;
        }
        .language-dropdown.show {
            display: block;
        }
        .language-option {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s;
            color: #ddd;
        }
        .language-option:hover {
            background: rgba(108, 43, 217, 0.2);
            color: var(--gold);
        }
        .language-option.active {
            background: rgba(108, 43, 217, 0.3);
            color: var(--gold);
        }
        .container {
            padding-top: 80px;
        }
        .business-section {
            padding: 6rem 3rem;
            position: relative;
            z-index: 10;
            background: var(--dark-bg);
            border-bottom: 1px solid rgba(108, 43, 217, 0.1);
        }
        .business-section:nth-child(even) {
            background: linear-gradient(180deg, #0f0f24 0%, var(--dark-bg) 100%);
        }
        .section-header {
            text-align: center;
            margin-bottom: 4rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-header h2 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, var(--white), var(--gold));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 700;
        }
        .section-header p {
            color: #aaa;
            font-size: 1.1rem;
            line-height: 1.6;
        }
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .tech-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(108, 43, 217, 0.2);
            border-radius: 16px;
            padding: 2rem;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }
        .tech-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.15), transparent 60%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }
        .tech-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-purple);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        }
        .tech-card:hover::before {
            opacity: 1;
        }
        .tech-icon {
            font-size: 2rem;
            color: var(--gold);
            margin-bottom: 1.5rem;
            background: rgba(255, 215, 0, 0.1);
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
        }
        .tech-card h3 {
            font-size: 1.4rem;
            margin-bottom: 1rem;
            color: var(--white);
        }
        .tech-card p {
            color: #ccc;
            line-height: 1.6;
            margin-bottom: 1.5rem;
            font-size: 0.95rem;
        }
        .tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .tech-tag {
            background: rgba(108, 43, 217, 0.2);
            color: var(--light-gold);
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-family: 'Consolas', monospace;
        }
        .quick-buttons {
            position: fixed;
            right: 30px;
            bottom: 30px;
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 999;
        }
        .quick-button {
            width: 55px;
            height: 55px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-purple), var(--deep-purple));
            color: white;
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(108, 43, 217, 0.4);
        }
        .quick-button:hover {
            transform: translateY(-5px) scale(1.1);
            box-shadow: 0 10px 25px rgba(108, 43, 217, 0.6);
        }
        .quick-button.secondary {
            background: linear-gradient(135deg, var(--gold), var(--light-gold));
            color: var(--dark-bg);
        }
        footer {
            background: rgba(10, 10, 26, 0.95);
            padding: 4rem 3rem 2rem;
            border-top: 1px solid rgba(108, 43, 217, 0.3);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }
        .footer-column h3 {
            color: var(--gold);
            margin-bottom: 1.5rem;
            font-size: 1.3rem;
        }
        .footer-column ul {
            list-style: none;
        }
        .footer-column li {
            margin-bottom: 10px;
            color: #ccc;
        }
        .footer-column a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }
        .footer-column a:hover {
            color: var(--gold);
        }
        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #888;
            font-size: 0.9rem;
        }
        .loading {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--dark-bg);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 3000;
        }
        .loading-spinner {
            width: 80px;
            height: 80px;
            border: 5px solid rgba(108, 43, 217, 0.3);
            border-top-color: var(--gold);
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-bottom: 2rem;
        }
        @keyframes spin {
            to { transform: rotate(360deg); }
        }
        .loading-text {
            color: var(--gold);
            font-size: 1.2rem;
            letter-spacing: 2px;
        }
        @media (max-width: 768px) {
            header {
                flex-direction: column;
                gap: 1rem;
                padding: 1rem;
            }
            .nav-right {
                width: 100%;
                justify-content: space-between;
                gap: 1rem;
            }
            nav ul {
                gap: 1rem;
                flex-wrap: wrap;
                justify-content: center;
            }
            .business-section {
                padding: 5rem 1.2rem;
            }
            footer {
                padding: 3rem 1.2rem 2rem;
            }
            .quick-buttons {
                right: 15px;
                bottom: 15px;
            }
            .quick-button {
                width: 45px;
                height: 45px;
                font-size: 1.2rem;
            }
        }

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; }
        :root { --primary-purple: #6c2bd9; --deep-purple: #4a1b9e; --dark-purple: #2d115c; --gold: #ffd700; --light-gold: #ffed4e; --white: #ffffff; --light-gray: #f0f0f5; --dark-bg: #0a0a1a; }
        body { background-color: var(--dark-bg); color: var(--white); overflow-x: hidden; min-height: 100vh; scroll-behavior: smooth; }
        header { position: fixed; top: 0; width: 100%; background: rgba(10, 10, 26, 0.95); backdrop-filter: blur(15px); z-index: 1000; padding: 1.2rem 3rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 5px 25px rgba(108, 43, 217, 0.2); }
        .logo { display: flex; align-items: center; gap: 12px; font-size: 1.8rem; font-weight: 700; color: var(--gold); text-transform: uppercase; letter-spacing: 2px; }
        .logo i { color: var(--primary-purple); font-size: 2.2rem; }
        .logo-text { display: flex; flex-direction: column; line-height: 1.2; }
        .logo-subtitle { font-size: 0.7rem; color: #aaa; font-weight: 400; letter-spacing: 1px; }
        .nav-right { display: flex; align-items: center; gap: 1.5rem; }
        nav ul { display: flex; list-style: none; gap: 2.5rem; }
        nav a { color: #ddd; text-decoration: none; font-weight: 500; transition: all 0.3s; position: relative; font-size: 0.95rem; padding: 0.5rem 0; }
        nav a:hover { color: var(--gold); }
        nav a.active { color: var(--gold); }
        nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: linear-gradient(90deg, var(--primary-purple), var(--gold)); transition: width 0.3s; }
        nav a:hover::after { width: 100%; }
        nav a.active::after { width: 100%; }
        .cta-button { background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple)); color: var(--white); border: none; padding: 0.8rem 1.8rem; border-radius: 30px; font-weight: 600; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; gap: 8px; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3); }
        .cta-button:hover { transform: translateY(-3px); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5); background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple)); }
        .language-selector { position: relative; }
        .language-button { background: transparent; border: 1px solid rgba(108, 43, 217, 0.5); color: #ddd; width: 50px; height: 40px; border-radius: 20px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s; }
        .language-button:hover { border-color: var(--gold); color: var(--gold); }
        .language-dropdown { position: absolute; top: 100%; right: 0; margin-top: 10px; background: rgba(20, 20, 40, 0.95); backdrop-filter: blur(10px); border-radius: 10px; padding: 0.5rem; min-width: 120px; border: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); display: none; z-index: 1001; }
        .language-dropdown.show { display: block; }
        .language-option { display: flex; align-items: center; gap: 10px; padding: 0.8rem 1rem; border-radius: 8px; cursor: pointer; transition: all 0.3s; color: #ddd; }
        .language-option:hover { background: rgba(108, 43, 217, 0.2); color: var(--gold); }
        .language-option.active { background: rgba(108, 43, 217, 0.3); color: var(--gold); }
        .container { padding-top: 80px; }
        .business-section { padding: 6rem 3rem; position: relative; z-index: 10; background: var(--dark-bg); border-bottom: 1px solid rgba(108, 43, 217, 0.1); }
        .business-section:nth-child(even) { background: linear-gradient(180deg, #0f0f24 0%, var(--dark-bg) 100%); }
        .section-header { text-align: center; margin-bottom: 4rem; max-width: 800px; margin-left: auto; margin-right: auto; }
        .section-header h2 { font-size: 2.5rem; margin-bottom: 1rem; background: linear-gradient(90deg, var(--white), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }
        .section-header p { color: #aaa; font-size: 1.1rem; line-height: 1.6; }
        .tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }
        .tech-card { background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(108, 43, 217, 0.2); border-radius: 16px; padding: 2rem; transition: all 0.4s ease; position: relative; overflow: hidden; }
        .tech-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.15), transparent 60%); opacity: 0; transition: opacity 0.4s ease; }
        .tech-card:hover { transform: translateY(-10px); border-color: var(--primary-purple); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
        .tech-card:hover::before { opacity: 1; }
        .tech-icon { font-size: 2rem; color: var(--gold); margin-bottom: 1.5rem; background: rgba(255, 215, 0, 0.1); width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 12px; }
        .tech-card h3 { font-size: 1.4rem; margin-bottom: 1rem; color: var(--white); }
        .tech-card p { color: #ccc; line-height: 1.6; margin-bottom: 1.5rem; font-size: 0.95rem; }
        .tech-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
        .tech-tag { background: rgba(108, 43, 217, 0.2); color: var(--light-gold); padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; font-family: 'Consolas', monospace; }
        .quick-buttons { position: fixed; right: 30px; bottom: 30px; display: flex; flex-direction: column; gap: 15px; z-index: 999; }
        .quick-button { width: 55px; height: 55px; border-radius: 50%; background: linear-gradient(135deg, var(--primary-purple), var(--deep-purple)); color: white; border: none; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; cursor: pointer; transition: all 0.3s; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.4); }
        .quick-button:hover { transform: translateY(-5px) scale(1.1); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.6); }
        .quick-button.secondary { background: linear-gradient(135deg, var(--gold), var(--light-gold)); color: var(--dark-bg); }
        footer { background: rgba(10, 10, 26, 0.95); padding: 4rem 3rem 2rem; border-top: 1px solid rgba(108, 43, 217, 0.3); }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 3rem; margin-bottom: 3rem; }
        .footer-column h3 { color: var(--gold); margin-bottom: 1.5rem; font-size: 1.3rem; }
        .footer-column ul { list-style: none; }
        .footer-column li { margin-bottom: 10px; color: #ccc; }
        .footer-column a { color: #ccc; text-decoration: none; transition: color 0.3s; }
        .footer-column a:hover { color: var(--gold); }
        .footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.1); color: #888; font-size: 0.9rem; }
        .loading { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--dark-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 3000; }
        .loading-spinner { width: 80px; height: 80px; border: 5px solid rgba(108, 43, 217, 0.3); border-top-color: var(--gold); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 2rem; }
        @keyframes spin { to { transform: rotate(360deg); } }
        .loading-text { color: var(--gold); font-size: 1.2rem; letter-spacing: 2px; }
        @media (max-width: 768px) {
            header { flex-direction: column; gap: 1rem; padding: 1rem; }
            .nav-right { width: 100%; justify-content: space-between; gap: 1rem; }
            nav ul { gap: 1rem; flex-wrap: wrap; justify-content: center; }
            .business-section { padding: 5rem 1.2rem; }
            footer { padding: 3rem 1.2rem 2rem; }
            .quick-buttons { right: 15px; bottom: 15px; }
            .quick-button { width: 45px; height: 45px; font-size: 1.2rem; }
        }

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; }
        :root { --primary-purple: #6c2bd9; --deep-purple: #4a1b9e; --dark-purple: #2d115c; --gold: #ffd700; --light-gold: #ffed4e; --white: #ffffff; --light-gray: #f0f0f5; --dark-bg: #0a0a1a; }
        body { background-color: var(--dark-bg); color: var(--white); overflow-x: hidden; min-height: 100vh; scroll-behavior: smooth; }
        header { position: fixed; top: 0; width: 100%; background: rgba(10, 10, 26, 0.95); backdrop-filter: blur(15px); z-index: 1000; padding: 1.2rem 3rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 5px 25px rgba(108, 43, 217, 0.2); }
        .logo { display: flex; align-items: center; gap: 12px; font-size: 1.8rem; font-weight: 700; color: var(--gold); text-transform: uppercase; letter-spacing: 2px; }
        .logo i { color: var(--primary-purple); font-size: 2.2rem; }
        .logo-text { display: flex; flex-direction: column; line-height: 1.2; }
        .logo-subtitle { font-size: 0.7rem; color: #aaa; font-weight: 400; letter-spacing: 1px; }
        .nav-right { display: flex; align-items: center; gap: 1.5rem; }
        nav ul { display: flex; list-style: none; gap: 2.5rem; }
        nav a { color: #ddd; text-decoration: none; font-weight: 500; transition: all 0.3s; position: relative; font-size: 0.95rem; padding: 0.5rem 0; }
        nav a:hover { color: var(--gold); }
        nav a.active { color: var(--gold); }
        nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: linear-gradient(90deg, var(--primary-purple), var(--gold)); transition: width 0.3s; }
        nav a:hover::after { width: 100%; }
        nav a.active::after { width: 100%; }
        .cta-button { background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple)); color: var(--white); border: none; padding: 0.8rem 1.8rem; border-radius: 30px; font-weight: 600; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; gap: 8px; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3); }
        .cta-button:hover { transform: translateY(-3px); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5); background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple)); }
        .language-selector { position: relative; }
        .language-button { background: transparent; border: 1px solid rgba(108, 43, 217, 0.5); color: #ddd; width: 50px; height: 40px; border-radius: 20px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s; }
        .language-button:hover { border-color: var(--gold); color: var(--gold); }
        .language-dropdown { position: absolute; top: 100%; right: 0; margin-top: 10px; background: rgba(20, 20, 40, 0.95); backdrop-filter: blur(10px); border-radius: 10px; padding: 0.5rem; min-width: 120px; border: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); display: none; z-index: 1001; }
        .language-dropdown.show { display: block; }
        .language-option { display: flex; align-items: center; gap: 10px; padding: 0.8rem 1rem; border-radius: 8px; cursor: pointer; transition: all 0.3s; color: #ddd; }
        .language-option:hover { background: rgba(108, 43, 217, 0.2); color: var(--gold); }
        .language-option.active { background: rgba(108, 43, 217, 0.3); color: var(--gold); }
        .container { padding-top: 80px; }
        .business-section { padding: 6rem 3rem; position: relative; z-index: 10; background: var(--dark-bg); border-bottom: 1px solid rgba(108, 43, 217, 0.1); }
        .business-section:nth-child(even) { background: linear-gradient(180deg, #0f0f24 0%, var(--dark-bg) 100%); }
        .section-header { text-align: center; margin-bottom: 4rem; max-width: 800px; margin-left: auto; margin-right: auto; }
        .section-header h2 { font-size: 2.5rem; margin-bottom: 1rem; background: linear-gradient(90deg, var(--white), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }
        .section-header p { color: #aaa; font-size: 1.1rem; line-height: 1.6; }
        .tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }
        .tech-card { background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(108, 43, 217, 0.2); border-radius: 16px; padding: 2rem; transition: all 0.4s ease; position: relative; overflow: hidden; }
        .tech-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.15), transparent 60%); opacity: 0; transition: opacity 0.4s ease; }
        .tech-card:hover { transform: translateY(-10px); border-color: var(--primary-purple); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
        .tech-card:hover::before { opacity: 1; }
        .tech-icon { font-size: 2rem; color: var(--gold); margin-bottom: 1.5rem; background: rgba(255, 215, 0, 0.1); width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 12px; }
        .tech-card h3 { font-size: 1.4rem; margin-bottom: 1rem; color: var(--white); }
        .tech-card p { color: #ccc; line-height: 1.6; margin-bottom: 1.5rem; font-size: 0.95rem; }
        .tech-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
        .tech-tag { background: rgba(108, 43, 217, 0.2); color: var(--light-gold); padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; font-family: 'Consolas', monospace; }
        .quick-buttons { position: fixed; right: 30px; bottom: 30px; display: flex; flex-direction: column; gap: 15px; z-index: 999; }
        .quick-button { width: 55px; height: 55px; border-radius: 50%; background: linear-gradient(135deg, var(--primary-purple), var(--deep-purple)); color: white; border: none; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; cursor: pointer; transition: all 0.3s; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.4); }
        .quick-button:hover { transform: translateY(-5px) scale(1.1); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.6); }
        .quick-button.secondary { background: linear-gradient(135deg, var(--gold), var(--light-gold)); color: var(--dark-bg); }
        footer { background: rgba(10, 10, 26, 0.95); padding: 4rem 3rem 2rem; border-top: 1px solid rgba(108, 43, 217, 0.3); }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 3rem; margin-bottom: 3rem; }
        .footer-column h3 { color: var(--gold); margin-bottom: 1.5rem; font-size: 1.3rem; }
        .footer-column ul { list-style: none; }
        .footer-column li { margin-bottom: 10px; color: #ccc; }
        .footer-column a { color: #ccc; text-decoration: none; transition: color 0.3s; }
        .footer-column a:hover { color: var(--gold); }
        .footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.1); color: #888; font-size: 0.9rem; }
        .loading { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--dark-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 3000; }
        .loading-spinner { width: 80px; height: 80px; border: 5px solid rgba(108, 43, 217, 0.3); border-top-color: var(--gold); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 2rem; }
        @keyframes spin { to { transform: rotate(360deg); } }
        .loading-text { color: var(--gold); font-size: 1.2rem; letter-spacing: 2px; }
        @media (max-width: 768px) {
            header { flex-direction: column; gap: 1rem; padding: 1rem; }
            .nav-right { width: 100%; justify-content: space-between; gap: 1rem; }
            nav ul { gap: 1rem; flex-wrap: wrap; justify-content: center; }
            .business-section { padding: 5rem 1.2rem; }
            footer { padding: 3rem 1.2rem 2rem; }
            .quick-buttons { right: 15px; bottom: 15px; }
            .quick-button { width: 45px; height: 45px; font-size: 1.2rem; }
        }

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; }
        :root { --primary-purple: #6c2bd9; --deep-purple: #4a1b9e; --dark-purple: #2d115c; --gold: #ffd700; --light-gold: #ffed4e; --white: #ffffff; --light-gray: #f0f0f5; --dark-bg: #0a0a1a; }
        body { background-color: var(--dark-bg); color: var(--white); overflow-x: hidden; min-height: 100vh; scroll-behavior: smooth; }
        header { position: fixed; top: 0; width: 100%; background: rgba(10, 10, 26, 0.95); backdrop-filter: blur(15px); z-index: 1000; padding: 1.2rem 3rem; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 5px 25px rgba(108, 43, 217, 0.2); }
        .logo { display: flex; align-items: center; gap: 12px; font-size: 1.8rem; font-weight: 700; color: var(--gold); text-transform: uppercase; letter-spacing: 2px; }
        .logo i { color: var(--primary-purple); font-size: 2.2rem; }
        .logo-text { display: flex; flex-direction: column; line-height: 1.2; }
        .logo-subtitle { font-size: 0.7rem; color: #aaa; font-weight: 400; letter-spacing: 1px; }
        .nav-right { display: flex; align-items: center; gap: 1.5rem; }
        nav ul { display: flex; list-style: none; gap: 2.5rem; }
        nav a { color: #ddd; text-decoration: none; font-weight: 500; transition: all 0.3s; position: relative; font-size: 0.95rem; padding: 0.5rem 0; }
        nav a:hover { color: var(--gold); }
        nav a.active { color: var(--gold); }
        nav a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: linear-gradient(90deg, var(--primary-purple), var(--gold)); transition: width 0.3s; }
        nav a:hover::after { width: 100%; }
        nav a.active::after { width: 100%; }
        .cta-button { background: linear-gradient(90deg, var(--primary-purple), var(--deep-purple)); color: var(--white); border: none; padding: 0.8rem 1.8rem; border-radius: 30px; font-weight: 600; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; gap: 8px; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.3); }
        .cta-button:hover { transform: translateY(-3px); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.5); background: linear-gradient(90deg, var(--deep-purple), var(--primary-purple)); }
        .language-selector { position: relative; }
        .language-button { background: transparent; border: 1px solid rgba(108, 43, 217, 0.5); color: #ddd; width: 50px; height: 40px; border-radius: 20px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s; }
        .language-button:hover { border-color: var(--gold); color: var(--gold); }
        .language-dropdown { position: absolute; top: 100%; right: 0; margin-top: 10px; background: rgba(20, 20, 40, 0.95); backdrop-filter: blur(10px); border-radius: 10px; padding: 0.5rem; min-width: 120px; border: 1px solid rgba(108, 43, 217, 0.3); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5); display: none; z-index: 1001; }
        .language-dropdown.show { display: block; }
        .language-option { display: flex; align-items: center; gap: 10px; padding: 0.8rem 1rem; border-radius: 8px; cursor: pointer; transition: all 0.3s; color: #ddd; }
        .language-option:hover { background: rgba(108, 43, 217, 0.2); color: var(--gold); }
        .language-option.active { background: rgba(108, 43, 217, 0.3); color: var(--gold); }
        .container { padding-top: 80px; }
        .business-section { padding: 6rem 3rem; position: relative; z-index: 10; background: var(--dark-bg); border-bottom: 1px solid rgba(108, 43, 217, 0.1); }
        .section-header { text-align: center; margin-bottom: 4rem; max-width: 900px; margin-left: auto; margin-right: auto; }
        .section-header h2 { font-size: 2.5rem; margin-bottom: 1rem; background: linear-gradient(90deg, var(--white), var(--gold)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }
        .section-header p { color: #aaa; font-size: 1.1rem; line-height: 1.6; }
        .tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }
        .tech-card { background: rgba(255, 255, 255, 0.03); border: 1px solid rgba(108, 43, 217, 0.2); border-radius: 16px; padding: 2rem; transition: all 0.4s ease; position: relative; overflow: hidden; }
        .tech-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle at top right, rgba(108, 43, 217, 0.15), transparent 60%); opacity: 0; transition: opacity 0.4s ease; }
        .tech-card:hover { transform: translateY(-10px); border-color: var(--primary-purple); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
        .tech-card:hover::before { opacity: 1; }
        .tech-icon { font-size: 2rem; color: var(--gold); margin-bottom: 1.5rem; background: rgba(255, 215, 0, 0.1); width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 12px; }
        .tech-card h3 { font-size: 1.4rem; margin-bottom: 1rem; color: var(--white); }
        .tech-card p { color: #ccc; line-height: 1.6; margin-bottom: 1.5rem; font-size: 0.95rem; }
        .tech-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
        .tech-tag { background: rgba(108, 43, 217, 0.2); color: var(--light-gold); padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; font-family: 'Consolas', monospace; }
        .quick-buttons { position: fixed; right: 30px; bottom: 30px; display: flex; flex-direction: column; gap: 15px; z-index: 999; }
        .quick-button { width: 55px; height: 55px; border-radius: 50%; background: linear-gradient(135deg, var(--primary-purple), var(--deep-purple)); color: white; border: none; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; cursor: pointer; transition: all 0.3s; box-shadow: 0 5px 15px rgba(108, 43, 217, 0.4); }
        .quick-button:hover { transform: translateY(-5px) scale(1.1); box-shadow: 0 10px 25px rgba(108, 43, 217, 0.6); }
        .quick-button.secondary { background: linear-gradient(135deg, var(--gold), var(--light-gold)); color: var(--dark-bg); }
        footer { background: rgba(10, 10, 26, 0.95); padding: 4rem 3rem 2rem; border-top: 1px solid rgba(108, 43, 217, 0.3); }
        .footer-content { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 3rem; margin-bottom: 3rem; }
        .footer-column h3 { color: var(--gold); margin-bottom: 1.5rem; font-size: 1.3rem; }
        .footer-column ul { list-style: none; }
        .footer-column li { margin-bottom: 10px; color: #ccc; }
        .footer-column a { color: #ccc; text-decoration: none; transition: color 0.3s; }
        .footer-column a:hover { color: var(--gold); }
        .footer-bottom { text-align: center; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, 0.1); color: #888; font-size: 0.9rem; }
        .loading { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--dark-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 3000; }
        .loading-spinner { width: 80px; height: 80px; border: 5px solid rgba(108, 43, 217, 0.3); border-top-color: var(--gold); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 2rem; }
        @keyframes spin { to { transform: rotate(360deg); } }
        .loading-text { color: var(--gold); font-size: 1.2rem; letter-spacing: 2px; }
        @media (max-width: 768px) {
            header { flex-direction: column; gap: 1rem; padding: 1rem; }
            .nav-right { width: 100%; justify-content: space-between; gap: 1rem; }
            nav ul { gap: 1rem; flex-wrap: wrap; justify-content: center; }
            .business-section { padding: 5rem 1.2rem; }
            footer { padding: 3rem 1.2rem 2rem; }
            .quick-buttons { right: 15px; bottom: 15px; }
            .quick-button { width: 45px; height: 45px; font-size: 1.2rem; }
        }