/* Original tool presentation, scoped to this detail page. */

        #yk-portal-v2 .yk-legacy-tool {
            --primary-color: #2563EB;
            --secondary-color: #1E40AF;
            --accent-color: #3B82F6;
            --nav-bg-color: rgba(13, 25, 49, 0.85);
            --dark-bg: #0F172A;
            --light-bg: #F8FAFC;
            --card-bg: #FFFFFF;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --gradient-primary: linear-gradient(135deg, #2563EB, #1E40AF);
            --gradient-accent: linear-gradient(135deg, #3B82F6, #60A5FA);
            --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
            --border-radius: 12px;
            --transition: all 0.3s ease;
        }
        
        /* 导航栏样式 */
        #yk-portal-v2 .yk-legacy-tool .navbar {
            background-color: var(--nav-bg-color);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            padding: 10px 0;
            transition: all 0.4s ease;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        #yk-portal-v2 .yk-legacy-tool .navbar-scrolled {
            padding: 8px 0;
            background-color: rgba(13, 25, 49, 0.95);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
        }
        
        #yk-portal-v2 .yk-legacy-tool .navbar-brand {
            display: flex;
            align-items: center;
            padding: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .navbar-brand img {
            height: 40px;
            transition: all 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .navbar-scrolled .navbar-brand img {
            height: 36px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .brand-text {
            color: rgba(255, 255, 255, 0.95); 
            font-weight: 700; 
            font-size: 1.5rem;
            margin-left: 10px;
            transition: all 0.3s ease;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }
        
        #yk-portal-v2 .yk-legacy-tool .navbar-scrolled .brand-text {
            font-size: 1.3rem;
        }
        
        #yk-portal-v2 .yk-legacy-tool .nav-item {
            position: relative;
            margin: 0 5px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .nav-link {
            font-weight: 600;
            position: relative;
            padding: 10px 0 !important;
            margin: 0 15px;
            text-transform: uppercase;
            font-size: 14px;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            color: rgba(255, 255, 255, 0.9) !important;
        }
        
        #yk-portal-v2 .yk-legacy-tool .nav-link:before {
            content: "";
            position: absolute;
            width: 5px;
            height: 5px;
            border-radius: 50%;
            bottom: 0;
            left: 50%;
            background-color: var(--accent-color);
            transform: translateX(-50%) scale(0);
            transition: transform 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .nav-link:hover:before,#yk-portal-v2 .yk-legacy-tool 
        .nav-item.active .nav-link:before {
            transform: translateX(-50%) scale(1);
        }
        
        #yk-portal-v2 .yk-legacy-tool .nav-item.active .nav-link {
            color: var(--accent-color) !important;
            text-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
        }
        
        #yk-portal-v2 .yk-legacy-tool .nav-item:hover .nav-link {
            color: #fff !important;
            transform: translateY(-3px);
            text-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
        }
        
        #yk-portal-v2 .yk-legacy-tool .hero-section {
            position: relative;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 120px 0;
            margin-bottom: 80px;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: none repeat;
            opacity: 0.1;
            z-index: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .hero-content {
            position: relative;
            z-index: 2;
        }
        
        #yk-portal-v2 .yk-legacy-tool .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1.5rem;
            text-shadow: 0 2px 10px rgba(0,0,0,0.2);
        }
        
        #yk-portal-v2 .yk-legacy-tool .hero-subtitle {
            font-size: 1.25rem;
            opacity: 0.9;
            margin-bottom: 2rem;
        }
        
        /* 功能区域样式 */
        #yk-portal-v2 .yk-legacy-tool .feature-section {
            padding: 120px 0;
            background: var(--light-bg);
            position: relative;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: none repeat;
            opacity: 0.05;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .section-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 3rem;
            position: relative;
            text-align: center;
            color: var(--text-primary);
        }
        
        #yk-portal-v2 .yk-legacy-tool .section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 3px;
            background: var(--gradient-primary);
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-card {
            background: var(--card-bg);
            border-radius: var(--border-radius);
            padding: 40px 30px;
            margin-bottom: 30px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(0,0,0,0.05);
            z-index: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--gradient-primary);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-card:hover::before {
            transform: scaleX(1);
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 25px;
            transition: all 0.3s ease;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-card:hover .feature-icon {
            transform: scale(1.1);
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--text-primary);
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-desc {
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        #yk-portal-v2 .yk-legacy-tool .system-image {
            width: 100%;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-lg);
            transition: all 0.3s ease;
            border: 1px solid rgba(0,0,0,0.05);
        }
        
        #yk-portal-v2 .yk-legacy-tool .system-image:hover {
            transform: scale(1.02);
        }
        
        #yk-portal-v2 .yk-legacy-tool .cta-button {
            display: inline-block;
            background: white;
            color: var(--primary-color);
            padding: 15px 35px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            margin-top: 20px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            border: 2px solid white;
        }
        
        #yk-portal-v2 .yk-legacy-tool .cta-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: 0.5s;
        }
        
        #yk-portal-v2 .yk-legacy-tool .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(0, 0, 0, 0.3);
            background: transparent;
            color: white;
            border: 2px solid white;
        }
        
        #yk-portal-v2 .yk-legacy-tool .cta-button:hover::before {
            left: 100%;
        }
        
        /* 工作原理区域样式 */
        #yk-portal-v2 .yk-legacy-tool .scene-section {
            padding: 120px 0;
            background: var(--dark-bg);
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: none repeat;
            opacity: 0.05;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-section .section-title {
            color: white;
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-section .section-title::after {
            background: var(--gradient-accent);
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            padding: 40px;
            margin-bottom: 30px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            height: 100%;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            z-index: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            background: rgba(255, 255, 255, 0.08);
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-title {
            font-size: 1.8rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--accent-color);
            position: relative;
            padding-bottom: 15px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--gradient-accent);
        }
        
        #yk-portal-v2 .yk-legacy-tool .scene-desc {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-list {
            list-style: none;
            padding-left: 0;
            margin-top: 20px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-list li {
            position: relative;
            padding-left: 25px;
            margin-bottom: 12px;
            color: rgba(255, 255, 255, 0.8);
        }
        
        #yk-portal-v2 .yk-legacy-tool .feature-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-color);
            font-weight: bold;
        }
        
        /* 使用流程区域样式 */
        #yk-portal-v2 .yk-legacy-tool .guide-section {
            padding: 120px 0;
            background: var(--light-bg);
            position: relative;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .guide-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: none repeat;
            opacity: 0.05;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .guide-step {
            margin-bottom: 60px;
            position: relative;
            padding-left: 80px;
            z-index: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .step-number {
            position: absolute;
            left: 0;
            top: 0;
            width: 60px;
            height: 60px;
            background: var(--gradient-primary);
            color: white;
            border-radius: 50%;
            text-align: center;
            line-height: 60px;
            font-weight: 700;
            font-size: 1.5rem;
            box-shadow: var(--shadow-md);
            z-index: 2;
        }
        
        #yk-portal-v2 .yk-legacy-tool .step-number::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 60px;
            width: 0px;
            height: 2px;
            background: var(--gradient-primary);
            z-index: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .step-title {
            font-size: 1.8rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: var(--text-primary);
        }
        
        #yk-portal-v2 .yk-legacy-tool .step-desc {
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        #yk-portal-v2 .yk-legacy-tool .guide-section .feature-list li {
            color: var(--text-secondary);
        }
        
        #yk-portal-v2 .yk-legacy-tool .guide-section .feature-list li::before {
            color: var(--primary-color);
        }
        
        /* 页脚样式 */
        #yk-portal-v2 .yk-legacy-tool .footer {
            background: var(--dark-bg);
            color: white;
            padding-top: 80px;
            position: relative;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-stars {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .star {
            position: absolute;
            width: 2px;
            height: 2px;
            background: white;
            border-radius: 50%;
            animation: yka6f2c2ee805a6ceb-twinkle 5s infinite;
        }
        
        @keyframes yka6f2c2ee805a6ceb-twinkle {
            0%, 100% { opacity: 0.2; }
            50% { opacity: 1; }
        }
        
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(2) { top: 20%; left: 20%; animation-delay: 1s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(3) { top: 30%; left: 30%; animation-delay: 2s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(4) { top: 40%; left: 40%; animation-delay: 3s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(5) { top: 50%; left: 50%; animation-delay: 4s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(6) { top: 60%; left: 60%; animation-delay: 5s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(7) { top: 70%; left: 70%; animation-delay: 6s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(8) { top: 80%; left: 80%; animation-delay: 7s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(9) { top: 90%; left: 90%; animation-delay: 8s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(10) { top: 15%; left: 15%; animation-delay: 9s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(11) { top: 25%; left: 25%; animation-delay: 10s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(12) { top: 35%; left: 35%; animation-delay: 11s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(13) { top: 45%; left: 45%; animation-delay: 12s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(14) { top: 55%; left: 55%; animation-delay: 13s; }
        #yk-portal-v2 .yk-legacy-tool .star:nth-child(15) { top: 65%; left: 65%; animation-delay: 14s; }
        
        #yk-portal-v2 .yk-legacy-tool .dot-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
            background-size: 20px 20px;
            opacity: 0.3;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .glow-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.2), transparent 70%);
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .wave-decoration {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100px;
            background: url("/images/wave.svg") repeat-x;
            opacity: 0.1;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer h5 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 25px;
            position: relative;
            display: inline-block;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer h5::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 0;
            width: 40px;
            height: 3px;
            background: var(--gradient-accent);
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-desc {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.8;
            margin-bottom: 30px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer ul li {
            margin-bottom: 12px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer ul li a {
            color: rgba(255, 255, 255, 0.7);
            transition: var(--transition);
            text-decoration: none;
            display: inline-block;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer ul li a:hover {
            color: white;
            transform: translateX(5px);
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer ul li a i {
            margin-right: 8px;
            color: var(--accent-color);
        }
        
        #yk-portal-v2 .yk-legacy-tool .contact-list li {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        
        #yk-portal-v2 .yk-legacy-tool .contact-list li i {
            margin-right: 10px;
            color: var(--accent-color);
            font-size: 1.2rem;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-qrcode {
            margin-top: 20px;
            text-align: center;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-qrcode img {
            width: 120px;
            border-radius: 10px;
            margin-bottom: 10px;
            border: 3px solid rgba(255, 255, 255, 0.1);
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-qrcode span {
            display: block;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-bottom {
            margin-top: 60px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-bottom p {
            color: rgba(255, 255, 255, 0.6);
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-bottom-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            justify-content: flex-end;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-bottom-links li {
            margin-left: 20px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-bottom-links li a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            transition: var(--transition);
        }
        
        #yk-portal-v2 .yk-legacy-tool .footer-bottom-links li a:hover {
            color: white;
        }
        
        /* 响应式调整 */
        @media (max-width: 991px) {
            #yk-portal-v2 .yk-legacy-tool .hero-title {
                font-size: 2.8rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .section-title {
                font-size: 2.2rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .guide-step {
                padding-left: 60px;
            }
            
            #yk-portal-v2 .yk-legacy-tool .step-number {
                width: 50px;
                height: 50px;
                line-height: 50px;
                font-size: 1.2rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .step-number::after {
                width: 20px;
            }
        }
        
        @media (max-width: 767px) {
            #yk-portal-v2 .yk-legacy-tool .hero-title {
                font-size: 2.3rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .hero-subtitle {
                font-size: 1.1rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .section-title {
                font-size: 2rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .feature-card,#yk-portal-v2 .yk-legacy-tool  .scene-card {
                padding: 30px 20px;
            }
            
            #yk-portal-v2 .yk-legacy-tool .guide-step {
                padding-left: 50px;
                margin-bottom: 40px;
            }
            
            #yk-portal-v2 .yk-legacy-tool .step-number {
                width: 40px;
                height: 40px;
                line-height: 40px;
                font-size: 1rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .step-title {
                font-size: 1.5rem;
            }
        }
        
        /* 系统界面展示样式 */
        #yk-portal-v2 .yk-legacy-tool .interface-section {
            padding: 120px 0;
            background: var(--light-bg);
            position: relative;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: none repeat;
            opacity: 0.05;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-content {
            padding-right: 30px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-desc {
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 25px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-list {
            margin-top: 25px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-list li {
            color: var(--text-secondary);
            margin-bottom: 15px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-list li::before {
            color: var(--primary-color);
        }
        
        #yk-portal-v2 .yk-legacy-tool .interface-gallery {
            position: relative;
            z-index: 2;
        }
        
        #yk-portal-v2 .yk-legacy-tool .main-screenshot {
            position: relative;
            overflow: hidden;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-lg);
            transition: all 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .main-screenshot img {
            transition: all 0.4s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .main-screenshot:hover img {
            transform: scale(1.02);
        }
        
        #yk-portal-v2 .yk-legacy-tool .screenshot-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
            padding: 30px 20px 20px;
            opacity: 0;
            transition: all 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .main-screenshot:hover .screenshot-overlay {
            opacity: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .overlay-content h4 {
            color: white;
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 5px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .overlay-content p {
            color: rgba(255,255,255,0.8);
            font-size: 1rem;
        }
        
        /* 系统优势样式 */
        #yk-portal-v2 .yk-legacy-tool .advantages-section {
            padding: 120px 0;
            background: var(--dark-bg);
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantages-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: none repeat;
            opacity: 0.05;
            z-index: 0;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantages-section .section-title {
            color: white;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantages-section .section-title::after {
            background: var(--gradient-accent);
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--border-radius);
            padding: 40px 30px;
            margin-bottom: 30px;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            height: 100%;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(5px);
            -webkit-backdrop-filter: blur(5px);
            z-index: 1;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--gradient-accent);
            transition: all 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            background: rgba(255, 255, 255, 0.08);
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-icon {
            font-size: 2.5rem;
            margin-bottom: 25px;
            transition: all 0.3s ease;
            background: linear-gradient(135deg, var(--accent-color), #60A5FA);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-card:hover .advantage-icon {
            transform: scale(1.1);
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: white;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-desc {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.6;
            margin-bottom: 20px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-list {
            list-style: none;
            padding-left: 0;
            margin-top: 20px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-list li {
            position: relative;
            padding-left: 30px;
            margin-bottom: 15px;
            color: rgba(255, 255, 255, 0.7);
        }
        
        #yk-portal-v2 .yk-legacy-tool .advantage-list li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--accent-color);
            font-weight: bold;
            font-size: 1.1rem;
        }
        
        #yk-portal-v2 .yk-legacy-tool .types-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        
        #yk-portal-v2 .yk-legacy-tool .type-tag {
            background: rgba(59, 130, 246, 0.2);
            color: rgba(255, 255, 255, 0.9);
            border-radius: 20px;
            padding: 6px 12px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(59, 130, 246, 0.4);
            transition: all 0.3s ease;
        }
        
        #yk-portal-v2 .yk-legacy-tool .type-tag:hover {
            background: rgba(59, 130, 246, 0.4);
            transform: translateY(-2px);
        }
        
        #yk-portal-v2 .yk-legacy-tool .cta-container {
            margin-top: 30px;
            text-align: center;
        }
        
        #yk-portal-v2 .yk-legacy-tool .btn-advantage {
            display: inline-block;
            background: var(--gradient-accent);
            color: white;
            padding: 12px 30px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
        }
        
        #yk-portal-v2 .yk-legacy-tool .btn-advantage::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: 0.5s;
        }
        
        #yk-portal-v2 .yk-legacy-tool .btn-advantage:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(37, 99, 235, 0.4);
            color: white;
            text-decoration: none;
        }
        
        #yk-portal-v2 .yk-legacy-tool .btn-advantage:hover::before {
            left: 100%;
        }
        
        @media (max-width: 991px) {
            #yk-portal-v2 .yk-legacy-tool .interface-content {
                padding-right: 0;
                margin-bottom: 40px;
            }
            
            #yk-portal-v2 .yk-legacy-tool .interface-title {
                font-size: 1.8rem;
            }
        }
        
        @media (max-width: 767px) {
            #yk-portal-v2 .yk-legacy-tool .advantage-card {
                padding: 30px 20px;
            }
            
            #yk-portal-v2 .yk-legacy-tool .advantage-title {
                font-size: 1.4rem;
            }
            
            #yk-portal-v2 .yk-legacy-tool .type-tag {
                font-size: 0.8rem;
                padding: 5px 10px;
            }
        }