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

        body {
            font-family: 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            overflow-x: hidden;
            background: linear-gradient(135deg, #e6f7ff, #f0f9ff);
            color: #2c3e50;
        }

        /* 美化全局滚动条 */
        ::-webkit-scrollbar {
            width: 14px;
        }

        ::-webkit-scrollbar-track {
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.1), rgba(188, 233, 255, 0.1));
            border-radius: 7px;
            box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
        }

        ::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, #328dbb, #3992bf, #7ac8e8);
            border-radius: 7px;
            box-shadow: 
                0 2px 6px rgba(82, 177, 224, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
            border: 1px solid rgba(82, 177, 224, 0.2);
        }

        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(135deg, #3a9bc8, #7ac8e8, #52b1e0);
            box-shadow: 
                0 0px 12px rgba(82, 177, 224, 0.4),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }

        ::-webkit-scrollbar-thumb:active {
            background: linear-gradient(135deg, #2a8ab5, #3a9bc8, #4aa9d5);
        }

        ::-webkit-scrollbar-corner {
            background: rgba(82, 177, 224, 0.1);
        }

        /* 动态粒子背景 */
        .particles-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            background: linear-gradient(45deg, #e6f7ff 0%, #d1f0ff 25%, #bce9ff 50%, #d1f0ff 75%, #e6f7ff 100%);
            background-size: 400% 400%;
            animation: gradientShift 15s ease infinite;
        }

        @keyframes gradientShift {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        .particle {
            position: absolute;
            background: rgba(188, 233, 255, 0.6);
            border-radius: 50%;
            pointer-events: none;
        }

        /* 头部导航 3D效果 */
        .header {
            background: linear-gradient(90deg, #e6f7ff 0%, #d1f0ff 25%, #bce9ff 50%, #d1f0ff 75%, #e6f7ff 100%);
            backdrop-filter: blur(20px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(82, 177, 224, 0.3);
            perspective: 1000px;
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            padding: 20px;
        }

        .logo {
            width: 280px;
            height: 120px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            transform: rotateY(-10deg) rotateX(5deg);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
            border-radius: 20px;
            color: white;
            font-size: 28px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        .logo::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            transform: rotate(45deg);
            animation: logoShine 3s infinite;
        }

        @keyframes logoShine {
            0% { transform: rotate(45deg) translate(-50%, -50%); }
            100% { transform: rotate(45deg) translate(50%, 50%); }
        }

        .logo:hover {
            transform: rotateY(0deg) rotateX(0deg) scale(1.05);
        }

        .nav-menu {
            display: flex;
            gap: 15px;
            margin-left: auto;
        }

        .nav-item {
            background: linear-gradient(135deg, #004b6e, #087bb5);
            width: 150px;
            height: 90px;
            border-radius: 15px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            box-shadow: 
                0 8px 25px rgba(58, 155, 200, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2),
                inset 0 -1px 0 rgba(0,0,0,0.1);
            position: relative;
            overflow: hidden;
            transform-style: preserve-3d;
        }

        .nav-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .nav-item:hover::before {
            opacity: 1;
        }

        .nav-item:hover {
            transform: translateY(-8px) translateZ(20px) rotateX(10deg);
            box-shadow: 
                0 15px 40px rgba(58, 155, 200, 0.5),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }

        /* 主要轮播区域 */
        .hero-section {
            max-width: 1400px;
            margin: 60px auto;
            padding: 0 20px;
        }

        .slideshow-container {
            height: 647px;
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.15), rgba(188, 233, 255, 0.25));
            border-radius: 25px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(82, 177, 224, 0.3);
        }

        .slides {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .slide {
            position: absolute;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
        }

        .slide.active {
            opacity: 1;
        }

        .slide-content {
            text-align: center;
            color: #2c3e50;
            z-index: 2;
            background: rgba(255, 255, 255, 0.7);
            padding: 40px;
            border-radius: 15px;
            backdrop-filter: blur(10px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        .slide-title {
            font-size: 64px;
            font-weight: bold;
            text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
            margin-bottom: 20px;
            background: linear-gradient(45deg, #2c3e50, #3a9bc8, #52b1e0);
            background-clip: text;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: titleGlow 3s ease-in-out infinite alternate;
        }

        @keyframes titleGlow {
            0% { text-shadow: 0 0 5px rgba(82, 177, 224, 0.3); }
            100% { text-shadow: 0 0 20px rgba(82, 177, 224, 0.6); }
        }

        .slide-subtitle {
            font-size: 24px;
            opacity: 0.9;
            animation: fadeInUp 2s ease-out;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* 轮播指示器 */
        .slide-indicators {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 15px;
            z-index: 3;
        }

        .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(44, 62, 80, 0.4);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .indicator.active {
            background: #52b1e0;
            transform: scale(1.2);
            box-shadow: 0 0 15px rgba(82, 177, 224, 0.6);
        }

        /* 轮播箭头 */
        .slide-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.7);
            color: #52b1e0;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            font-size: 20px;
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 3;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        .slide-nav:hover {
            background: #52b1e0;
            color: white;
            transform: translateY(-50%) scale(1.1);
        }

        .slide-nav.prev {
            left: 30px;
        }

        .slide-nav.next {
            right: 30px;
        }

        /* 功能导航带图标 */
        .feature-nav {
            display: flex;
            gap: 30px;
            margin: 40px 0;
            justify-content: center;
        }

        .feature-item {
            background: linear-gradient(135deg, #3a9bc8, #52b1e0);
            width: 220px;
            height: 100px;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            color: white;
            font-size: 20px;
            font-weight: bold;
            text-decoration: none;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            box-shadow: 
                0 10px 30px rgba(58, 155, 200, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
            position: relative;
            overflow: hidden;
        }

        .feature-item::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 0.5s ease;
        }

        .feature-item:hover::before {
            left: 100%;
        }

        .feature-item:hover {
            transform: translateY(-10px) scale(1.05);
            box-shadow: 
                0 20px 50px rgba(58, 155, 200, 0.5),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }

        .feature-icon {
            font-size: 32px;
            animation: iconFloat 3s ease-in-out infinite;
        }

        @keyframes iconFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }

        .download-counter {
            background: linear-gradient(135deg, #3a9bc8, #52b1e0);
            animation: counterPulse 2s ease-in-out infinite;
        }

        @keyframes counterPulse {
            0%, 100% { box-shadow: 0 10px 30px rgba(58, 155, 200, 0.3); }
            50% { box-shadow: 0 15px 40px rgba(58, 155, 200, 0.5); }
        }

        /* 主内容区域 */
        .main-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        .content-row {
            display: flex;
            gap: 40px;
            margin-bottom: 40px;
            min-height: 1000px;
            align-items: stretch;
        }

        /* 专业下载区域设计 */
        .download-section {
            width: 380px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .download-item {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 15px;
            padding: 25px;
            transition: all 0.3s ease;
            box-shadow: 
                0 8px 25px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255,255,255,0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(82, 177, 224, 0.3);
            position: relative;
            overflow: hidden;
            min-height: 140px;
        }

        .download-item:hover {
            transform: translateY(-5px);
            box-shadow: 
                0 15px 35px rgba(82, 177, 224, 0.2),
                inset 0 1px 0 rgba(255,255,255,0.9);
        }

        .download-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 18px;
        }

        .download-icon {
            font-size: 24px;
            color: #52b1e0;
            animation: downloadFloat 2s ease-in-out infinite;
        }

        @keyframes downloadFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-3px); }
        }

        .download-title {
            font-size: 18px;
            font-weight: bold;
            color: #2c3e50;
            flex: 1;
        }

        .download-version {
            font-size: 14px;
            color: #52b1e0;
            background: rgba(82, 177, 224, 0.15);
            padding: 4px 10px;
            border-radius: 12px;
            font-weight: bold;
        }

        .download-info {
            display: flex;
            justify-content: space-between;
            margin-bottom: 18px;
            font-size: 14px;
            color: #7f8c8d;
        }

        .download-size {
            font-weight: bold;
        }

        .download-status {
            color: #27ae60;
            font-weight: bold;
        }

        .download-description {
            font-size: 13px;
            color: #7f8c8d;
            margin-bottom: 20px;
            line-height: 1.5;
        }

        .download-btn {
            background: linear-gradient(135deg, #3a9bc8, #52b1e0);
            color: white;
            padding: 14px 20px;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 
                0 6px 20px rgba(58, 155, 200, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
            position: relative;
            overflow: hidden;
            width: 100%;
        }

        .download-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 0.5s ease;
        }

        .download-btn:hover::before {
            left: 100%;
        }

        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 
                0 10px 25px rgba(58, 155, 200, 0.4),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }

        /* 滚动日志美化 */
        .log-section {
            flex: 1;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 20px;
            padding: 30px;
            box-shadow: 
                0 15px 40px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255,255,255,0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(82, 177, 224, 0.3);
        }

        .log-title {
            font-size: 28px;
            color: #52b1e0;
            margin-bottom: 25px;
            text-align: center;
            font-weight: bold;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.05);
        }

        .log-content {
            height: 1080px;
            overflow-y: auto;
            padding-right: 15px;
        }

        .log-content::-webkit-scrollbar {
            width: 14px;
        }

        .log-content::-webkit-scrollbar-track {
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.15), rgba(188, 233, 255, 0.15));
            border-radius: 7px;
            box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
        }

        .log-content::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, #52b1e0, #bce9ff, #7ac8e8);
            border-radius: 7px;
            box-shadow: 
                0 2px 6px rgba(82, 177, 224, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
            border: 1px solid rgba(82, 177, 224, 0.2);
        }

        .log-content::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(135deg, #3a9bc8, #7ac8e8, #52b1e0);
            box-shadow: 
                0 4px 12px rgba(82, 177, 224, 0.4),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }

        .log-content::-webkit-scrollbar-thumb:active {
            background: linear-gradient(135deg, #2a8ab5, #3a9bc8, #4aa9d5);
        }

        .log-item {
            padding: 18px;
            margin-bottom: 12px;
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.08), rgba(188, 233, 255, 0.08));
            border-left: 0px solid #52b1e0;
            border-radius: 12px;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        }

        .log-item:hover {
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.15), rgba(188, 233, 255, 0.15));
            transform: translateX(8px);
            box-shadow: 0 4px 15px rgba(82, 177, 224, 0.2);
        }

        .log-date {
            font-weight: bold;
            color: #52b1e0;
            margin-bottom: 5px;
        }

        .log-text {
            color: #2c3e50;
            line-height: 1.5;
        }

        /* 现代化皮肤展示 */
        .skins-section {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin: 50px 0;
        }

        .skin-item {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 20px;
            padding: 25px;
            text-align: center;
            box-shadow: 
                0 15px 40px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255,255,255,0.8);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(82, 177, 224, 0.3);
            position: relative;
            overflow: hidden;
        }

        .skin-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.1), rgba(188, 233, 255, 0.1));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .skin-item:hover::before {
            opacity: 1;
        }

        .skin-item:hover {
            transform: translateY(-15px) scale(1.03);
            box-shadow: 
                0 25px 60px rgba(82, 177, 224, 0.2),
                inset 0 1px 0 rgba(255,255,255,0.9);
        }

        .skin-preview {
            width: 100%;
            height: 220px;
            background: linear-gradient(135deg, #7ac8e8, #52b1e0);
            border-radius: 15px;
            margin-bottom: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 16px;
            position: relative;
            overflow: hidden;
            box-shadow: 
                0 10px 25px rgba(122, 200, 232, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
        }

        .skin-title {
            font-size: 20px;
            color: #2c3e50;
            margin-bottom: 10px;
            font-weight: bold;
            position: relative;
            z-index: 2;
        }

        .skin-description {
            color: #7f8c8d;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .skin-download-btn {
            background: linear-gradient(135deg, #3a9bc8, #52b1e0);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 25px;
            cursor: pointer;
            font-weight: bold;
            transition: all 0.3s ease;
            position: relative;
            z-index: 2;
            box-shadow: 
                0 6px 20px rgba(58, 155, 200, 0.3),
                inset 0 1px 0 rgba(255,255,255,0.2);
        }

        .skin-download-btn:hover {
            transform: scale(1.05);
            box-shadow: 
                0 8px 25px rgba(58, 155, 200, 0.4),
                inset 0 1px 0 rgba(255,255,255,0.3);
        }

        /* 反外挂卡片升级 */
        .anti-cheat-section {
            background: rgba(255, 255, 255, 0.9);
            border-radius: 25px;
            padding: 50px;
            margin: 50px 0;
            box-shadow: 
                0 20px 50px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255,255,255,0.8);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(82, 177, 224, 0.3);
        }

        .cards-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .info-card {
            background: linear-gradient(135deg, rgba(82, 177, 224, 0.08), rgba(188, 233, 255, 0.15));
            border-radius: 20px;
            padding: 30px;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            border: 2px solid rgba(82, 177, 224, 0.3);
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
        }

        .info-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(transparent, rgba(82, 177, 224, 0.15), transparent 30%);
            animation: cardRotate 6s linear infinite;
        }

        .info-card::after {
            content: '';
            position: absolute;
            inset: 2px;
            background: inherit;
            border-radius: 18px;
            z-index: 1;
        }

        @keyframes cardRotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .info-card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: 0 20px 50px rgba(82, 177, 224, 0.2);
        }

        .card-content {
            position: relative;
            z-index: 2;
        }

        .card-title {
            font-size: 24px;
            color: #2c3e50;
            margin-bottom: 20px;
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .card-icon {
            font-size: 32px;
            color: #52b1e0;
            animation: cardIconFloat 3s ease-in-out infinite;
        }

        @keyframes cardIconFloat {
            0%, 100% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-5px) rotate(5deg); }
        }

        .card-text {
            color: #7f8c8d;
            line-height: 1.8;
            font-size: 16px;
        }

        /* 100%宽度的现代化免责声明 */
        .footer {
            background: linear-gradient(135deg, rgba(210, 240, 255, 0.95), rgba(188, 233, 255, 0.95));
            padding: 60px 0;
            margin-top: 80px;
            backdrop-filter: blur(20px);
            border-top: 1px solid rgba(82, 177, 224, 0.3);
            position: relative;
            overflow: hidden;
            width: 100%;
        }

        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            opacity: 0.3;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .disclaimer {
            width: 100%;
            margin: 0 auto;
            text-align: left;
            color: #2c3e50;
            font-size: 14px;
            padding: 50px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            box-shadow: 
                0 15px 40px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255,255,255,0.3);
            backdrop-filter: blur(15px);
            border: 2px dashed rgba(82, 177, 224, 0.4);
            position: relative;
            z-index: 2;
            margin-bottom: 40px;
        }

        .disclaimer::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(135deg, rgba(188, 233, 255, 0.3), rgba(122, 200, 232, 0.2));
            border-radius: 22px;
            z-index: -1;
        }

        .disclaimer h3 {
            color: #3a9bc8;
            margin-bottom: 35px;
            font-size: 32px;
            text-align: center;
            padding-bottom: 20px;
            border-bottom: 2px dashed rgba(82, 177, 224, 0.5);
            position: relative;
        }

        .disclaimer h3::after {
            content: '';
            position: absolute;
            bottom: -12px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
        }

        .disclaimer p {
            margin-bottom: 25px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.4);
            border-radius: 12px;
            border-left: 0px solid rgba(82, 177, 224, 0.6);
            position: relative;
        }

        .disclaimer p::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border: 1px dashed rgba(82, 177, 224, 0.2);
            border-radius: 12px;
            pointer-events: none;
        }

        .copyright {
            width: 100%;
            text-align: center;
            color: #2c3e50;
            font-size: 16px;
            padding: 40px 50px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 15px;
            box-shadow: 
                0 10px 30px rgba(0, 0, 0, 0.05),
                inset 0 1px 0 rgba(255,255,255,0.3);
            backdrop-filter: blur(10px);
            border: 2px dashed rgba(82, 177, 224, 0.3);
            position: relative;
            z-index: 2;
        }

        .copyright::before {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            background: linear-gradient(135deg, rgba(188, 233, 255, 0.2), rgba(122, 200, 232, 0.15));
            border-radius: 17px;
            z-index: -1;
        }

        .copyright h3 {
            color: #3a9bc8;
            margin-bottom: 25px;
            font-size: 24px;
            padding-bottom: 15px;
            border-bottom: 1px dashed rgba(82, 177, 224, 0.4);
            position: relative;
        }

        .copyright h3::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
        }

        .copyright p {
            margin-bottom: 12px;
            padding: 8px 15px;
            background: rgba(255, 255, 255, 0.4);
            border-radius: 8px;
            border: 1px dashed rgba(82, 177, 224, 0.2);
            display: inline-block;
            margin: 5px;
        }

        /* 主题切换器 - 竖排布局 */
        .theme-switcher {
            position: absolute;
            margin-top: 0px;
            margin-left: 990px;
            z-index: 10000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(20px);
            border-radius: 50px;
            padding: 10px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(188, 233, 255, 0.3);
            display: flex;
            flex-direction: column;
            gap: 10px;
            align-items: center;
            transition: all 0.3s ease;
        }

        .theme-btn {
            width: 30px;
            height: 30px;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            position: relative;
            overflow: hidden;
            background: rgba(255, 255, 255, 0.7);
            color: #52b1e0;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }

        .theme-btn.active {
            background: linear-gradient(135deg, #52b1e0, #bce9ff);
            color: white;
            transform: scale(1.1);
            box-shadow: 0 0 20px rgba(82, 177, 224, 0.4);
        }

        .theme-btn:hover {
            transform: scale(1.05);
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .nav-container, .hero-section, .main-content {
                max-width: 100%;
                padding: 0 20px;
            }
            
            .nav-menu {
                gap: 8px;
            }
            
            .nav-item {
                width: 130px;
                height: 80px;
                font-size: 14px;
            }

            .slide-title {
                font-size: 48px;
            }
        }

        @media (max-width: 992px) {
            .skins-section {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .content-row {
                flex-direction: column;
            }
            
            .skins-section {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .cards-container {
                grid-template-columns: 1fr;
            }
            
            .feature-nav {
                flex-wrap: wrap;
                gap: 15px;
            }

            .feature-item {
                width: 180px;
                height: 80px;
                font-size: 16px;
            }

            .slide-title {
                font-size: 36px;
            }
            
            .download-section {
                width: 100%;
            }
        }

        @media (max-width: 576px) {
            .skins-section {
                grid-template-columns: 1fr;
            }
            
            .nav-menu {
                flex-wrap: wrap;
                justify-content: center;
            }
            
            .logo {
                width: 100%;
                margin-bottom: 15px;
            }
            
            .nav-container {
                flex-direction: column;
            }
        }