:root {
            --primary-blue: #1A73E8;
            --primary-dark-blue: #0D47A1;
            --primary-light-blue: #E8F0FE;
            --primary-green: #0F9D58;
            --primary-red: #D93025;
            --primary-yellow: #F4B400;
            --dark-gray: #202124;
            --medium-gray: #5F6368;
            --light-gray: #F8F9FA;
            --border-gray: #DADCE0;
            --shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
            --shadow-heavy: 0 4px 12px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Helvetica Neue', 'Microsoft YaHei', Arial, sans-serif;
        }
		a {
	text-decoration: none; color:var(--medium-gray)
	
}
.hero-content h1 a{ color:var(--dark-gray);
}

.flink{
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    color: var(--medium-gray);
}
.flink a{color: var(--medium-gray);}
        body {
            color: var(--dark-gray);
            line-height: 1.6;
            overflow-x: hidden;
            font-size: 16px;
        }

        .container {
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        section {
            padding: 80px 0;
        }

        h1, h2, h3, h4 {
            font-weight: 600;
            line-height: 1.2;
            margin-bottom: 1rem;
        }

        h1 {
            font-size: 3.2rem;
            font-weight: 700;
        }

        h2 {
            font-size: 2.4rem;
            text-align: center;
            margin-bottom: 3rem;
        }

        h3 {
            font-size: 1.6rem;
        }

        p {
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
            color: var(--medium-gray);
        }

        .btn {
            display: inline-block;
            padding: 16px 32px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.05rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            text-align: center;
        }

        .primary-btn {
            background-color: var(--primary-blue);
            color: white;
            border: 2px solid var(--primary-blue);
        }

        .primary-btn:hover {
            background-color: var(--primary-dark-blue);
            border-color: var(--primary-dark-blue);
            box-shadow: var(--shadow);
        }

        .secondary-btn {
            background-color: transparent;
            color: var(--primary-blue);
            border: 2px solid var(--primary-blue);
        }

        .secondary-btn:hover {
            background-color: var(--primary-light-blue);
            box-shadow: var(--shadow);
        }

        .section-title {
            position: relative;
            padding-bottom: 1rem;
            margin-bottom: 3rem;
            text-align: center;
        }

        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background-color: var(--primary-blue);
        }

        /* 导航栏样式 - 直角设计 */
        header {
            position: fixed;
            top: 0;
            width: 100%;
            background-color: white;
            box-shadow: var(--shadow);
            z-index: 1000;
            padding: 0;
            border-bottom: 1px solid var(--border-gray);
        }

        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .logo {
            display: flex;
            align-items: center;
        }

        .logo h2 {
            margin: 0;
            font-size: 1.8rem;
            color: var(--dark-gray);
        }

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

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 30px;
        }

        nav ul li a {
            text-decoration: none;
            color: var(--dark-gray);
            font-weight: 500;
            font-size: 1.05rem;
            transition: var(--transition);
            position: relative;
            padding: 8px 0;
        }

        nav ul li a:hover {
            color: var(--primary-blue);
        }

        nav ul li a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            background-color: var(--primary-blue);
            left: 0;
            bottom: 0;
            transition: var(--transition);
        }

        nav ul li a:hover:after {
            width: 100%;
        }

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

        /* 修复后的英雄区域样式 */
        .hero {
            background-color: #F8F9FA;
            padding: 180px 0 100px;
            text-align: center;
            position: relative;
            border-bottom: 1px solid var(--border-gray);
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #E8F0FE 0%, #F1F8FF 100%);
            z-index: 0;
        }

        .hero-content {
            position: relative;
            z-index: 1;
        }

        .hero h1 {
            margin-bottom: 1.5rem;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero p {
            font-size: 1.2rem;
            max-width: 1200px;
            margin: 0 auto 2.5rem;
            color: var(--medium-gray);
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        .metrics-display {
            display: flex;
            justify-content: center;
            gap: 60px;
            flex-wrap: wrap;
        }

        .metric {
            text-align: center;
            padding: 20px;
            background-color: white;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
        }

        .metric span {
            display: block;
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary-blue);
            margin-top: 10px;
        }

        /* 服务区域样式 - 直角设计 */
        .services {
            background-color: white;
            border-top: 1px solid var(--border-gray);
           
        }
		.cert-card img{width:100%; max-height:200px}

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: white;
            padding: 35px;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
            transition: var(--transition);
            border-top: 3px solid transparent;
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
            border-top-color: var(--primary-blue);
        }

        .service-card:nth-child(1) {
            border-top-color: var(--primary-blue);
        }

        .service-card:nth-child(2) {
            border-top-color: var(--primary-green);
        }

        .service-card:nth-child(3) {
            border-top-color: var(--primary-red);
        }

        .service-card:nth-child(4) {
            border-top-color: var(--primary-yellow);
        }
        
        .service-card:nth-child(5) {
            border-top-color: #8A2BE2;
        }
        
        .service-card:nth-child(6) {
            border-top-color: #00CED1;
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: var(--primary-blue);
        }

        .service-card h3 {
            margin-bottom: 15px;
        }

        .service-features {
            list-style: none;
            margin-top: 20px;
        }

        .service-features li {
            padding: 8px 0;
            border-bottom: 1px solid #eee;
        }

        .service-features li:before {
            content: '✓';
            color: var(--primary-green);
            font-weight: bold;
            margin-right: 10px;
        }



        .benefit-highlight {
            background-color: var(--primary-blue);
            color: white;
            padding: 40px;
            margin-bottom: 50px;
            border: 1px solid var(--primary-dark-blue);
            box-shadow: var(--shadow);
        }

        .benefit-highlight h3 {
            color: white;
            font-size: 2rem;
            margin-bottom: 15px; text-align:center
        }

        .benefit-highlight p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2rem;
            max-width: 1000px;
            margin: 0 auto;
        }

        .benefit-amount {
            font-size: 3rem;
            font-weight: 700;
            color: #FFD700;
            margin: 15px 0; text-align:center
        }

        .certifications {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin: 40px 0;
        }

        .cert-card {
            background-color: white;
            padding: 25px;
            text-align: center;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
            flex: 1;
            min-width: 200px;
            max-width: 430px;
            transition: var(--transition); padding-bottom:0px
        }

        .cert-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }

        .cert-icon {
            font-size: 3rem;
            color: var(--primary-blue);
            margin-bottom: 15px;
        }

        /* 问题解决样式 - 直角设计 */
        .problems-section {
            background-color: white;
            margin: 50px 0;
        }

        .problems-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
            gap: 25px;
        }

        .problem-card {
            background-color: white;
            padding: 25px;
            border: 1px solid var(--border-gray);
            border-left: 4px solid var(--primary-red);
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .problem-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }

        .problem-card h4 {
            color: var(--primary-red);
            margin-bottom: 15px;
            font-size: 1.3rem;
        }

        /* 价格表样式 - 直角设计 */
        .pricing-section {
            background-color: white;
            margin: 50px 0;

            padding: 40px 0px;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
            gap: 30px;
        }

        .pricing-card {
            background-color: white;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
        }

        .pricing-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }

        .pricing-card.popular {
            border: 2px solid var(--primary-blue);
        }

        .popular-badge {
            position: absolute;
            top: 0;
            right: 0;
            background-color: var(--primary-blue);
            color: white;
            padding: 8px 15px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .pricing-header {
            padding: 30px;
            text-align: center;
            background-color: var(--primary-blue);
            color: white;
            border-bottom: 1px solid var(--primary-dark-blue);
        }

        .pricing-header h3 {
            color: white;
            margin-bottom: 10px;
        }

        .pricing-amount {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 15px 0;
        }

        .pricing-body {
            padding: 30px;
        }

        .pricing-features {
            list-style: none;
            margin-bottom: 30px;
        }

        .pricing-features li {
            padding: 10px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
        }

        .pricing-features li:before {
            content: '✓';
            color: var(--primary-green);
            font-weight: bold;
            margin-right: 10px;
            font-size: 1.2rem;
        }

        /* 服务流程样式 - 直角设计 */
        .process-section {
            background-color: white;
            margin: 50px 0;
            border: 1px solid var(--border-gray);
            padding: 40px;
        }

        .process-timeline {
            position: relative;
            max-width: 1300px;
            margin: 0 auto;
        }

        .process-timeline:before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background-color: var(--primary-blue);
            transform: translateX(-50%);
        }

        .process-step {
            display: flex;
            align-items: center;
            margin-bottom: 50px;
            position: relative;
        }

        .process-step:nth-child(odd) {
            flex-direction: row;
        }

        .process-step:nth-child(even) {
            flex-direction: row-reverse;
        }

        .step-icon {
            width: 60px;
            height: 60px;
            background-color: var(--primary-blue);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            z-index: 1;
            flex-shrink: 0;
            border: 2px solid white;
            box-shadow: 0 0 0 2px var(--primary-blue);
        }

        .step-content {
            background-color: white;
            padding: 25px;
            width: calc(50% - 40px);
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
        }

        .process-step:nth-child(odd) .step-content {
            margin-left: 40px;
        }

        .process-step:nth-child(even) .step-content {
            margin-right: 40px;
            text-align: right;
        }

        .step-content h4 {
            color: var(--primary-blue);
            margin-bottom: 10px;
        }

   .case-header{ text-align:center; color:#FFFFFF}
   .case-header p{ text-align:center; color:#FFFFFF}
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: white;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
        }

        .case-header {
            padding: 25px;
            background-color: var(--primary-blue);
            color: white;
            border-bottom: 1px solid var(--primary-dark-blue);
        }

        .case-body {
            padding: 25px;
        }

        .case-stats {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }

        .case-stat {
            text-align: center;
        }

        .case-stat-value {
            display: block;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-green);
        }

        .case-stat-label {
            font-size: 0.9rem;
            color: var(--medium-gray);
        }



        .tools-container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
        }

        .tool-card {
            flex: 1;
            min-width: 250px;
            background-color: white;
            padding: 30px;
            text-align: center;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .tool-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }

        .tool-icon {
            font-size: 3rem;
            color: var(--primary-blue);
            margin-bottom: 20px;
        }

  

        .news-container {
            display: flex;
            flex-direction: column;
            gap: 40px;
        }

        .news-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .news-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }

        .category-btn {
            padding: 8px 20px;
            background-color: white;
            border: 1px solid var(--border-gray);
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
        }

        .category-btn.active, .category-btn:hover {
            background-color: var(--primary-blue);
            color: white;
            border-color: var(--primary-blue);
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }

        .news-card {
            background-color: white;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }

        .news-image {
            height: 200px;
            background-color: #eee;
            overflow: hidden;
        }

        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .news-card:hover .news-image img {
            transform: scale(1.05);
        }

        .news-content {
            padding: 25px;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            font-size: 0.9rem;
            color: var(--medium-gray);
        }

        .news-category {
            background-color: var(--primary-light-blue);
            color: var(--primary-blue);
            padding: 3px 10px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .news-date {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            line-height: 1.4;
        }

        .news-card p {
            font-size: 1rem;
            margin-bottom: 20px;
            color: var(--medium-gray);
        }

        .news-link {
            color: var(--primary-blue);
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 5px;
            transition: var(--transition);
        }

        .news-link:hover {
            color: var(--primary-dark-blue);
            gap: 10px;
        }

        .view-all-news {
            text-align: center;
            margin-top: 40px;
        }

.pricing-header p{ color:#FFFFFF}

        .faq-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: white;
            margin-bottom: 15px;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .faq-question {
            padding: 25px 30px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
            background-color: white;
        }

        .faq-question:hover {
            background-color: var(--primary-light-blue);
        }

        .faq-question h3 {
            margin: 0;
            font-size: 1.3rem;
            color: var(--dark-gray);
            flex: 1;
        }

        .faq-icon {
            color: var(--primary-blue);
            font-size: 1.2rem;
            transition: var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 30px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
        }

        .faq-item.active .faq-answer {
            padding: 0 30px 30px;
            max-height: 1000px;
        }

        .faq-answer p {
            margin-bottom: 15px;
        }

        .faq-answer ul {
            padding-left: 20px;
            margin-bottom: 15px;
        }

        .faq-answer li {
            margin-bottom: 8px;
            color: var(--medium-gray);
        }

        /* ROI计算器样式 - 直角设计 */
        .roi-calculator {
            background-color: var(--primary-blue);
            color: white;
            text-align: center;
            border-top: 1px solid var(--primary-dark-blue);
            border-bottom: 1px solid var(--primary-dark-blue);
        }

        .roi-calculator h2 {
            color: white;
        }

        .calculator-container {
            background-color: white;
            padding: 40px;
            max-width: 800px;
            margin: 0 auto;
            border: 1px solid var(--border-gray);
            box-shadow: var(--shadow-heavy);
        }

        .calculator-container h3 {
            color: var(--dark-gray);
            margin-bottom: 30px;
        }

        .input-group {
            margin-bottom: 25px;
            text-align: left;
        }

        .input-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--dark-gray);
        }

        .input-group input, .input-group select {
            width: 100%;
            padding: 15px;
            border: 1px solid var(--border-gray);
            font-size: 1rem;
            background-color: white;
        }

        .input-group input:focus, .input-group select:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 2px var(--primary-light-blue);
        }

        .slider-container {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .slider-container input {
            flex: 1;
        }

        .slider-value {
            min-width: 60px;
            font-weight: 600;
            color: var(--primary-blue);
        }

        .calculator-results {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 40px;
        }

        .result-box {
            background-color: var(--light-gray);
            padding: 25px;
            text-align: center;
            border: 1px solid var(--border-gray);
        }

        .result-value {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-green);
            margin-bottom: 5px;
        }

        .result-label {
            font-size: 1rem;
            color: var(--medium-gray);
        }

        /* 页脚样式 - 直角设计 */
        footer {
            background-color: var(--dark-gray);
            color: white;
            padding: 60px 0 30px;
            border-top: 1px solid #444;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-column h4 {
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column h4:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 3px;
            background-color: var(--primary-blue);
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a {
            color: #bbb;
            text-decoration: none;
            transition: var(--transition);
        }

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

        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid #444;
            color: #aaa;
            font-size: 0.9rem;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            h1 {
                font-size: 2.6rem;
            }
            
            h2 {
                font-size: 2rem;
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .news-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
            
            .pricing-card.popular {
                transform: scale(1);
            }
            
            .hero-bg {
                width: 50%;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            nav ul {
                position: fixed;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: white;
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                box-shadow: var(--shadow);
                transform: translateY(-100%);
                opacity: 0;
                transition: var(--transition);
                z-index: 999;
                border-top: 1px solid var(--border-gray);
            }
            
            nav ul.active {
                transform: translateY(0);
                opacity: 1;
            }
            
            nav ul li {
                margin: 15px 0;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .hero {
                padding: 150px 0 80px;
            }
            
            .metrics-display {
                gap: 30px;
            }
            
            .news-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            
            .calculator-results {
                grid-template-columns: 1fr;
            }
            
            .process-timeline:before {
                left: 30px;
            }
            
            .process-step {
                flex-direction: row !important;
                margin-left: 60px;
            }
            
            .step-content {
                width: 100%;
                margin-left: 20px !important;
                margin-right: 0 !important;
                text-align: left !important;
            }
            
            .hero-bg {
                width: 100%;
                height: 60%;
                top: auto;
                bottom: 0;
            }
        }

        @media (max-width: 576px) {
            h1 {
                font-size: 2rem;
            }
            
            h2 {
                font-size: 1.6rem;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .services-grid, .case-grid, .news-grid, .pricing-grid, .problems-grid {
                grid-template-columns: 1fr;
            }
            
            .metric span {
                font-size: 2rem;
            }
            
            .faq-question {
                padding: 20px;
            }
            
            .faq-question h3 {
                font-size: 1.1rem;
            }
            
            .hero-bg {
                display: none;
            }
        }