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

        /* 原有导航栏样式 */
        #yk-portal-v2 .yk-legacy-tool {
            padding-top: 60px;
            background-color: #f8f9fa;
        }
        #yk-portal-v2 .yk-legacy-tool {
            --primary-color: #2563EB;
            --secondary-color: #1E40AF;
            --accent-color: #3B82F6;
            --nav-bg-color: rgba(13, 25, 49, 0.85);
        }
        #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);
        }
        #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 .navbar-dark .navbar-toggler { border: none; outline: none; padding: 0; }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler-icon { background-image: none; position: relative; width: 24px; height: 17px; }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler-icon:before,#yk-portal-v2 .yk-legacy-tool  .navbar-dark .navbar-toggler-icon:after,#yk-portal-v2 .yk-legacy-tool  .navbar-dark .navbar-toggler-icon span { width: 100%; height: 2px; background-color: #fff; border-radius: 3px; position: absolute; left: 0; transition: all .3s ease; }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler-icon:before,#yk-portal-v2 .yk-legacy-tool  .navbar-dark .navbar-toggler-icon:after { content: ''; }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler-icon:before { top: 0; }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler-icon span { top: 50%; transform: translateY(-50%); }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler-icon:after { bottom: 0; }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon:before { transform: translateY(7px) rotate(45deg); }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon:after { transform: translateY(-7px) rotate(-45deg); }
        #yk-portal-v2 .yk-legacy-tool .navbar-dark .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon span { opacity: 0; }
        @media (max-width: 991px) {
            #yk-portal-v2 .yk-legacy-tool .navbar-collapse { background-color: rgba(13, 25, 49, 0.98); padding: 20px; border-radius: 10px; margin-top: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.15); }
            #yk-portal-v2 .yk-legacy-tool .navbar-nav .nav-item { margin: 5px 0; }
            #yk-portal-v2 .yk-legacy-tool .navbar-brand img { height: 36px; }
            #yk-portal-v2 .yk-legacy-tool .brand-text { font-size: 1.3rem; }
        }
        @media (max-width: 575px) {
            #yk-portal-v2 .yk-legacy-tool .navbar-brand img { height: 32px; }
            #yk-portal-v2 .yk-legacy-tool .brand-text { font-size: 1.2rem; }
        }

        /* 新页面样式 */
        #yk-portal-v2 .yk-legacy-tool .hero-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 0 60px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        #yk-portal-v2 .yk-legacy-tool .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        }
        #yk-portal-v2 .yk-legacy-tool .hero-section h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 2px 2px 10px rgba(0,0,0,0.2);
            position: relative;
        }
        #yk-portal-v2 .yk-legacy-tool .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            background: rgba(255,255,255,0.2);
            border-radius: 50px;
            font-size: 0.95rem;
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
        }
        #yk-portal-v2 .yk-legacy-tool .hero-badge i { color: #fbbf24; }
        #yk-portal-v2 .yk-legacy-tool .hero-section p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.95;
            position: relative;
        }

        #yk-portal-v2 .yk-legacy-tool .section-title {
            text-align: center;
            margin-bottom: 50px;
            font-size: 2.2rem;
            font-weight: 700;
            color: #1e293b;
            position: relative;
            padding-bottom: 15px;
        }
        #yk-portal-v2 .yk-legacy-tool .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            border-radius: 2px;
        }
        #yk-portal-v2 .yk-legacy-tool .section-subtitle {
            text-align: center;
            color: #64748b;
            font-size: 1.1rem;
            margin-top: -35px;
            margin-bottom: 50px;
        }

        #yk-portal-v2 .yk-legacy-tool .content-section {
            padding: 80px 0;
        }
        #yk-portal-v2 .yk-legacy-tool .content-section.bg-light {
            background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
        }

        /* 软件截图展示 */
        #yk-portal-v2 .yk-legacy-tool .screenshot-showcase {
            background: white;
            border-radius: 20px;
            padding: 30px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.1);
            margin-bottom: 40px;
        }
        #yk-portal-v2 .yk-legacy-tool .screenshot-img {
            width: 100%;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
            border: 1px solid #e2e8f0;
        }
        #yk-portal-v2 .yk-legacy-tool .screenshot-caption {
            text-align: center;
            margin-top: 20px;
            color: #64748b;
            font-size: 0.95rem;
        }

        /* 功能卡片 */
        #yk-portal-v2 .yk-legacy-tool .feature-card {
            background: white;
            border-radius: 16px;
            padding: 30px;
            height: 100%;
            transition: all 0.4s ease;
            border: 1px solid #e2e8f0;
            position: relative;
            overflow: hidden;
        }
        #yk-portal-v2 .yk-legacy-tool .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            transform: scaleX(0);
            transition: transform 0.4s ease;
        }
        #yk-portal-v2 .yk-legacy-tool .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 50px rgba(102, 126, 234, 0.15);
        }
        #yk-portal-v2 .yk-legacy-tool .feature-card:hover::before {
            transform: scaleX(1);
        }
        #yk-portal-v2 .yk-legacy-tool .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 20px;
        }
        #yk-portal-v2 .yk-legacy-tool .feature-icon.purple { background: linear-gradient(135deg, #667eea20, #764ba220); color: #667eea; }
        #yk-portal-v2 .yk-legacy-tool .feature-icon.blue { background: linear-gradient(135deg, #3b82f620, #0ea5e920); color: #3b82f6; }
        #yk-portal-v2 .yk-legacy-tool .feature-icon.orange { background: linear-gradient(135deg, #f59e0b20, #ef444420); color: #f59e0b; }
        #yk-portal-v2 .yk-legacy-tool .feature-icon.green { background: linear-gradient(135deg, #10b98120, #14b8a620); color: #10b981; }
        #yk-portal-v2 .yk-legacy-tool .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 12px;
        }
        #yk-portal-v2 .yk-legacy-tool .feature-card p {
            color: #64748b;
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* 使用步骤 */
        #yk-portal-v2 .yk-legacy-tool .step-item {
            display: flex;
            gap: 25px;
            padding: 25px;
            background: white;
            border-radius: 16px;
            margin-bottom: 20px;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        #yk-portal-v2 .yk-legacy-tool .step-item:hover {
            border-color: #667eea;
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.1);
            transform: translateX(10px);
        }
        #yk-portal-v2 .yk-legacy-tool .step-number {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.3rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        #yk-portal-v2 .yk-legacy-tool .step-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #1e293b;
            margin-bottom: 8px;
        }
        #yk-portal-v2 .yk-legacy-tool .step-content p {
            color: #64748b;
            font-size: 0.95rem;
            margin: 0;
            line-height: 1.6;
        }

        /* 参数卡片 */
        #yk-portal-v2 .yk-legacy-tool .param-card {
            background: white;
            border-radius: 16px;
            padding: 25px;
            height: 100%;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        #yk-portal-v2 .yk-legacy-tool .param-card:hover {
            border-color: #3b82f6;
            box-shadow: 0 10px 30px rgba(59, 130, 246, 0.1);
        }
        #yk-portal-v2 .yk-legacy-tool .param-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 15px;
        }
        #yk-portal-v2 .yk-legacy-tool .param-header i {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #3b82f620, #0ea5e920);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #3b82f6;
        }
        #yk-portal-v2 .yk-legacy-tool .param-header h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #1e293b;
            margin: 0;
        }
        #yk-portal-v2 .yk-legacy-tool .param-card p {
            color: #64748b;
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }
        #yk-portal-v2 .yk-legacy-tool .position-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            margin-top: 15px;
        }
        #yk-portal-v2 .yk-legacy-tool .position-grid span {
            padding: 8px;
            background: linear-gradient(135deg, #667eea10, #764ba210);
            border: 1px solid #667eea30;
            border-radius: 8px;
            text-align: center;
            font-size: 0.8rem;
            color: #667eea;
            font-weight: 500;
        }

        /* 提示卡片 */
        #yk-portal-v2 .yk-legacy-tool .tips-card {
            background: linear-gradient(135deg, #667eea10, #764ba210);
            border: 1px solid #667eea30;
            border-radius: 20px;
            padding: 30px;
        }
        #yk-portal-v2 .yk-legacy-tool .tips-card h4 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 600;
            color: #667eea;
            margin-bottom: 20px;
        }
        #yk-portal-v2 .yk-legacy-tool .tips-card h4 i {
            color: #f59e0b;
        }
        #yk-portal-v2 .yk-legacy-tool .tips-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        #yk-portal-v2 .yk-legacy-tool .tips-card li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            color: #475569;
            font-size: 0.95rem;
        }
        #yk-portal-v2 .yk-legacy-tool .tips-card li i {
            color: #10b981;
            margin-top: 4px;
        }

        /* 下载区域 */
        #yk-portal-v2 .yk-legacy-tool .download-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        #yk-portal-v2 .yk-legacy-tool .download-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
            animation: yk918f2044a17469ba-pulse 15s infinite;
        }
        @keyframes yk918f2044a17469ba-pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }
        #yk-portal-v2 .yk-legacy-tool .download-content {
            position: relative;
            z-index: 1;
        }
        #yk-portal-v2 .yk-legacy-tool .download-icon {
            width: 100px;
            height: 100px;
            background: rgba(255,255,255,0.2);
            border-radius: 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: white;
            margin: 0 auto 30px;
            backdrop-filter: blur(10px);
        }
        #yk-portal-v2 .yk-legacy-tool .download-section h2 {
            font-size: 2.5rem;
            font-weight: 700;
            color: white;
            margin-bottom: 15px;
        }
        #yk-portal-v2 .yk-legacy-tool .download-section > .container > .download-content > p {
            color: rgba(255,255,255,0.9);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 30px;
        }
        #yk-portal-v2 .yk-legacy-tool .download-info {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-bottom: 30px;
            flex-wrap: wrap;
        }
        #yk-portal-v2 .yk-legacy-tool .download-info span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255,255,255,0.9);
            font-size: 0.95rem;
        }
        #yk-portal-v2 .yk-legacy-tool .download-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 18px 45px;
            background: white;
            color: #667eea;
            font-size: 1.15rem;
            font-weight: 600;
            border-radius: 50px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 10px 40px rgba(0,0,0,0.2);
        }
        #yk-portal-v2 .yk-legacy-tool .download-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 50px rgba(0,0,0,0.3);
            color: #764ba2;
            text-decoration: none;
        }