/* 全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }

        :root {
            --primary-color: #2563eb;
            --secondary-color: #1e40af;
            --accent-color: #3b82f6;
            --light-color: #f8fafc;
            --dark-color: #1e293b;
            --text-color: #334155;
            --border-color: #e2e8f0;
            --success-color: #10b981;
            --warning-color: #f59e0b;
            --danger-color: #ef4444;
            --info-color: #3b82f6;
            --purple-color: #8b5cf6;
            --teal-color: #14b8a6;
            --gray-50: #f9fafb;
            --gray-100: #f3f4f6;
            --gray-200: #e5e7eb;
            --gray-600: #4b5563;
            --gray-700: #374151;
            --gray-800: #1f2937;
            --orange-color: #f97316;
            --green-color: #22c55e;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            color: var(--text-color);
            line-height: 1.6;
            background-color: #ffffff;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* 导航栏样式 */
        header {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--dark-color);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo span {
            color: var(--primary-color);
        }

        .nav-links {
            display: flex;
            gap: 32px;
        }

        .nav-links a {
            font-weight: 600;
            position: relative;
            padding: 6px 0;
            font-size: 0.95rem;
            color: var(--gray-700);
            transition: color 0.3s ease;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
            transition: width 0.3s ease;
        }

        .nav-links a:hover {
            color: var(--primary-color);
        }

        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--primary-color);
        }

        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--dark-color);
            background: none;
            border: none;
        }

        /* 文章顶部横幅 */
        .article-header {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
            color: white;
            padding: 140px 0 80px;
            margin-top: 80px;
            position: relative;
            overflow: hidden;
        }

        .header-pattern {
            position: absolute;
            top: 0;
            right: 0;
            width: 50%;
            height: 100%;
            background: 
                radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
            clip-path: polygon(100% 0, 100% 100%, 0 100%);
        }

        .header-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
        }

        .article-subtitle {
            font-size: 1.1rem;
            color: #93c5fd;
            margin-bottom: 20px;
            font-weight: 600;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .article-subtitle::before {
            content: '';
            width: 40px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-color), transparent);
            border-radius: 2px;
        }

        .article-title {
            font-size: 3.2rem;
            line-height: 1.2;
            margin-bottom: 15px;
            font-weight: 800;
            background: linear-gradient(90deg, #ffffff, #c7d2fe);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .article-tagline {
            font-size: 1.5rem;
            line-height: 1.6;
            color: #cbd5e1;
            margin-bottom: 40px;
            font-weight: 500;
        }

        .header-stats {
            display: flex;
            gap: 50px;
            margin-top: 60px;
            flex-wrap: wrap;
        }

        .header-stat {
            text-align: center;
            min-width: 140px;
        }

        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--green-color);
            display: block;
            line-height: 1;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: #94a3b8;
            font-weight: 500;
        }

        /* 章节通用样式 */
        .section {
            padding: 100px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 70px;
        }

        .section-tag {
            display: inline-block;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            padding: 8px 20px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2.8rem;
            color: var(--dark-color);
            margin-bottom: 20px;
            font-weight: 800;
            line-height: 1.2;
        }

        .section-subtitle {
            font-size: 1.2rem;
            color: var(--gray-600);
            max-width: 800px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* 痛点分析 */
        .pain-points-section {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
        }

        .pain-points-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .pain-point-card {
            background: white;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .pain-point-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 6px;
            height: 100%;
            background: linear-gradient(to bottom, #ef4444, #f97316);
            opacity: 0.8;
        }

        .pain-point-card:hover {
            transform: translateY(-12px);
            box-shadow: 0 25px 50px rgba(239, 68, 68, 0.1);
            border-color: rgba(239, 68, 68, 0.3);
        }

        .pain-point-number {
            position: absolute;
            top: -20px;
            right: 30px;
            font-size: 6rem;
            font-weight: 900;
            color: rgba(239, 68, 68, 0.05);
            line-height: 1;
            user-select: none;
        }

        .pain-point-icon {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #ef4444, #f97316);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: white;
            font-size: 1.5rem;
        }

        .pain-point-card h3 {
            font-size: 1.5rem;
            color: var(--dark-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .pain-point-list {
            list-style: none;
            padding-left: 0;
        }

        .pain-point-list li {
            padding: 8px 0;
            padding-left: 25px;
            position: relative;
            color: var(--gray-700);
            border-bottom: 1px dashed #e5e7eb;
        }

        .pain-point-list li:last-child {
            border-bottom: none;
        }

        .pain-point-list li::before {
            content: '×';
            position: absolute;
            left: 0;
            color: #ef4444;
            font-weight: bold;
            font-size: 1.1rem;
        }

        /* 产品定位 */
        .positioning-section {
            background: white;
        }

        .positioning-content {
            background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
            border-radius: 20px;
            padding: 60px;
            position: relative;
            overflow: hidden;
            border: 2px solid var(--primary-color);
        }

        .positioning-content::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 200px;
            height: 200px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), transparent);
            border-radius: 50%;
            transform: translate(50%, -50%);
        }

        .positioning-logo {
            width: 120px;
            height: 80px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 30px;
            color: white;
            font-size: 2rem;
            font-weight: bold;
            box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
        }

        .positioning-text {
            font-size: 1.3rem;
            line-height: 1.8;
            color: var(--gray-800);
            margin-bottom: 30px;
            font-weight: 500;
        }

        .positioning-highlight {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: white;
            padding: 15px 25px;
            border-radius: 12px;
            font-weight: 600;
            color: var(--dark-color);
            border: 2px solid var(--primary-color);
            margin-top: 20px;
        }

        .positioning-highlight i {
            color: var(--success-color);
            font-size: 1.2rem;
        }

        /* 核心功能 */
        .features-section {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
        }

        .features-tabs {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .feature-tab {
            background: white;
            padding: 15px 30px;
            border-radius: 50px;
            border: 2px solid var(--border-color);
            font-weight: 600;
            color: var(--gray-700);
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1rem;
        }

        .feature-tab:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            transform: translateY(-3px);
        }

        .feature-tab.active {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: white;
            border-color: transparent;
            box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
        }

        .features-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }

        .feature-content {
            background: white;
            border-radius: 20px;
            padding: 50px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(226, 232, 240, 0.8);
            display: none;
            animation: fadeIn 0.5s ease;
        }

        .feature-content.active {
            display: block;
        }

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

        .feature-header {
            display: flex;
            align-items: center;
            margin-bottom: 30px;
            gap: 20px;
        }

        .feature-number {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 15px;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .feature-title h3 {
            font-size: 1.8rem;
            color: var(--dark-color);
            margin-bottom: 10px;
        }

        .feature-title p {
            color: var(--gray-600);
            font-size: 1.1rem;
        }

        .feature-details {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .detail-item {
            background: #f8fafc;
            border-radius: 12px;
            padding: 25px;
            border-left: 4px solid var(--primary-color);
            transition: all 0.3s ease;
        }

        .detail-item:hover {
            background: #f0f9ff;
            transform: translateX(10px);
        }

        .detail-item h4 {
            font-size: 1.2rem;
            color: var(--dark-color);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .detail-item h4 i {
            color: var(--success-color);
        }

        /* 实施收益 */
        .benefits-section {
            background: white;
        }

        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .benefit-card {
            background: linear-gradient(135deg, #f8fafc, #ffffff);
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.05);
            border: 2px solid transparent;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .benefit-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--success-color), var(--green-color));
        }

        .benefit-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 25px 60px rgba(16, 185, 129, 0.15);
            border-color: var(--success-color);
        }

        .benefit-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--success-color), var(--green-color));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: white;
            font-size: 1.8rem;
        }

        .benefit-content h3 {
            font-size: 1.4rem;
            color: var(--dark-color);
            margin-bottom: 15px;
            font-weight: 700;
        }

        .benefit-metrics {
            display: flex;
            align-items: center;
            gap: 20px;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
        }

        .metric-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--success-color);
            line-height: 1;
        }

        .metric-label {
            font-size: 0.95rem;
            color: var(--gray-600);
        }

        /* 服务生态 */
        .ecosystem-section {
            background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
            color: white;
            position: relative;
            overflow: hidden;
        }

        .ecosystem-section .section-tag {
            background: linear-gradient(135deg, var(--accent-color), #93c5fd);
        }

        .ecosystem-section .section-title {
            color: white;
        }

        .ecosystem-section .section-subtitle {
            color: #cbd5e1;
        }

        .ecosystem-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            position: relative;
            z-index: 1;
        }

        .ecosystem-card {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            transition: all 0.4s ease;
        }

        .ecosystem-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--accent-color);
            transform: translateY(-10px);
        }

        .ecosystem-card i {
            font-size: 2.5rem;
            color: var(--accent-color);
            margin-bottom: 25px;
        }

        .ecosystem-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: white;
        }

        .ecosystem-card p {
            color: #cbd5e1;
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .ecosystem-pattern {
            position: absolute;
            bottom: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(147, 197, 253, 0.1) 0%, transparent 70%);
            opacity: 0.5;
        }

        /* 行动号召 */
        .cta-section {
            padding: 120px 0;
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-background {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
        }

        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 3rem;
            margin-bottom: 30px;
            font-weight: 800;
            line-height: 1.2;
        }

        .cta-text {
            font-size: 1.3rem;
            line-height: 1.8;
            margin-bottom: 50px;
            opacity: 0.95;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-offers {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 40px;
            margin-bottom: 50px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
        }

        .offer-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .offer-item:last-child {
            margin-bottom: 0;
        }

        .offer-item i {
            color: var(--green-color);
            font-size: 1.3rem;
        }

        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 18px 40px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-decoration: none;
        }

        .btn-primary {
            background: white;
            color: var(--primary-color);
        }

        .btn-primary:hover {
            background: #f8fafc;
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(255, 255, 255, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: white;
            border: 2px solid white;
        }

        .btn-outline:hover {
            background: white;
            color: var(--primary-color);
            transform: translateY(-5px);
        }

        .cta-contacts {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.2);
        }

        .contact-info {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
        }

        .contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.1rem;
        }

        .contact-item i {
            font-size: 1.2rem;
            color: var(--green-color);
        }

        /* 页脚样式 */
        footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 80px 0 30px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-column h3 {
            color: white;
            margin-bottom: 25px;
            font-size: 1.3rem;
            font-weight: 700;
        }

        .footer-links {
            list-style: none;
            padding-left: 0;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            transition: color 0.3s ease;
            display: inline-block;
            padding: 5px 0;
        }

        .footer-links a:hover {
            color: var(--accent-color);
            transform: translateX(5px);
        }

        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.9rem;
            color: #94a3b8;
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .pain-points-grid,
            .benefits-grid,
            .feature-details,
            .ecosystem-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 992px) {
            .section {
                padding: 80px 0;
            }
            
            .section-title {
                font-size: 2.2rem;
            }
            
            .article-title {
                font-size: 2.5rem;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
                border-top: 1px solid var(--border-color);
                z-index: 1000;
            }

            .nav-links.active {
                display: flex;
            }

            .mobile-menu-btn {
                display: block;
            }

            .article-header {
                padding: 120px 0 60px;
            }
            
            .article-title {
                font-size: 2rem;
            }
            
            .article-tagline {
                font-size: 1.2rem;
            }
            
            .header-stats {
                gap: 30px;
            }
            
            .header-stat {
                min-width: 110px;
            }
            
            .positioning-content {
                padding: 40px 25px;
            }
            
            .feature-content {
                padding: 30px;
            }
            
            .cta-title {
                font-size: 2.2rem;
            }
            
            .cta-text {
                font-size: 1.1rem;
            }
            
            .contact-info {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .section-title {
                font-size: 1.8rem;
            }
            
            .article-title {
                font-size: 1.8rem;
            }
            
            .header-stat {
                min-width: 100px;
            }
            
            .stat-number {
                font-size: 2.2rem;
            }
            
            .features-tabs {
                flex-direction: column;
                align-items: stretch;
            }
            
            .feature-tab {
                justify-content: center;
            }
            
            .cta-buttons {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
                justify-content: center;
            }
        }