:root {
            --primary: #0056b3;
            --secondary: #333333;
            --accent: #ff6b00;
            --light: #f8f9fa;
            --dark: #212529;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e9f2 100%);
            color: #333;
            line-height: 1.6;
            overflow-x: hidden;
        }
        
        .ups-container {
            max-width: 1600px;
            margin: 0 auto;
            padding: 0 20px;
            width:100%;
        }
        
        /* 面包屑导航 */
        .ups-breadcrumb {
            background-color: rgba(255, 255, 255, 0.9);
            padding: 15px 0;
            border-bottom: 1px solid #eaeaea;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .ups-breadcrumb ul {
            display: flex;
            list-style: none;
            font-size: 0.9rem;
        }
        
        .ups-breadcrumb li {
            margin-right: 5px;
            display: flex;
            align-items: center;
        }
        
        .ups-breadcrumb li:after {
            content: "/";
            margin-left: 5px;
            color: #999;
        }
        
        .ups-breadcrumb li:last-child:after {
            content: "";
        }
        
        .ups-breadcrumb a {
            text-decoration: none;
            color: var(--primary);
            transition: all 0.3s ease;
        }
        
        .ups-breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        
        /* 主视觉区域 */
        .ups-hero {
            position: relative;
            height: 85vh;
            min-height: 600px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%230056b3" fill-opacity="0.1" d="M0,256L48,224C96,192,192,128,288,106.7C384,85,480,107,576,128C672,149,768,171,864,165.3C960,160,1056,128,1152,122.7C1248,117,1344,139,1392,149.3L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') bottom no-repeat;
            background-size: 100% auto;
        }
        
        .ups-hero-content {
            position: relative;
            z-index: 10;
            max-width: 700px;
            padding: 0 30px;
            animation: fadeInUp 1s ease-out forwards;
        }
        
        .ups-hero h1 {
            font-size: 3.8rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.2;
            color: var(--dark);
            text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
        }
        
        .ups-hero p {
            font-size: 1.25rem;
            margin-bottom: 30px;
            color: var(--secondary);
            max-width: 600px;
        }
        
        .ups-hero-img {
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 55%;
            height: 80%;
        }
        
        .ups-hero-img img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
            animation: float 8s ease-in-out infinite;
        }
        
        .ups-btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: var(--accent);
            color: white;
            text-decoration: none;
            font-weight: bold;
            border-radius: 50px;
            border: 2px solid transparent;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255, 107, 0, 0.3);
        }
        
        .ups-btn:hover {
            background-color: transparent;
            color: var(--accent);
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255, 107, 0, 0.4);
        }
        
        /* 内容区块 */
        .ups-section {
            padding: 100px 0;
            position: relative;
        }
        
        .ups-section-header {
            text-align: center;
            margin-bottom: 70px;
            position: relative;
        }
        
        .ups-section-header h2 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 20px;
            display: inline-block;
            position: relative;
        }
        
        .ups-section-header h2:after {
            content: "";
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--accent);
            border-radius: 2px;
        }
        
        .ups-section-header p {
            max-width: 700px;
            margin: 20px auto 0;
            color: #666;
            font-size: 1.1rem;
        }
        
        /* 企业介绍 */
        .ups-about {
            background: white;
            padding: 80px 0;
        }
        
        .ups-about-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            align-items: center;
        }
        
        .ups-about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--primary);
        }
        
        .ups-about-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }
        
        .ups-feature {
            background: var(--light);
            padding: 25px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: transform 0.3s ease;
            border-left: 3px solid var(--accent);
        }
        
        .ups-feature:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .ups-feature h4 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--dark);
        }
        
        .ups-feature p {
            font-size: 0.95rem;
            color: #666;
        }
        
        .ups-about-img {
            position: relative;
            height: 400px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }
        
        .ups-about-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* 发展历程 - 修复问题 */
        .ups-history {
            background-color: #f9fbfd;
            padding: 100px 0;
        }
        
        .timeline-container {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .timeline-line {
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 4px;
            background: var(--primary);
            transform: translateX(-50%);
            z-index: 1;
        }
        
        .timeline-items {
            position: relative;
            z-index: 2;
        }
        
        .timeline-item {
            display: flex;
            margin-bottom: 60px;
            width: 100%;
        }
        
        .timeline-item:nth-child(even) {
            flex-direction: row-reverse;
        }
        
        .timeline-content {
            width: 45%;
            padding: 30px;
            background: white;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            position: relative;
            transition: all 0.4s ease;
        }
        
        .timeline-content:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
        }
        
        /* 修复圆圈位置问题 */
        .timeline-content::before {
            content: '';
            position: absolute;
            top: 50%;
            width: 24px;
            height: 24px;
            background: white;
            border: 4px solid var(--accent);
            border-radius: 50%;
            z-index: 2;
        }
        
        .timeline-item:nth-child(odd) .timeline-content::before {
            right: -36px;
            transform: translateY(-50%);
        }
        
        .timeline-item:nth-child(even) .timeline-content::before {
            left: -36px;
            transform: translateY(-50%);
        }
        
        .timeline-content .date {
            color: var(--accent);
            font-weight: bold;
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        
        .timeline-content h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.5rem;
        }
        
        .timeline-content p {
            color: #666;
        }
        
        .timeline-img {
            width: 45%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .timeline-img-inner {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: var(--light);
            display: flex;
            align-items: center;
            justify-content: center;
            border: 5px solid white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        .timeline-img-inner img {
            width: 80%;
            height: 80%;
            object-fit: contain;
        }
        
        /* 荣誉资质 */
        .ups-certificates {
            background: var(--primary);
            color: white;
            padding: 100px 0;
        }
        
        .ups-certificates .ups-section-header h2,
        .ups-certificates .ups-section-header p {
            color: white;
        }
        
        .carousel-container {
            position: relative;
            max-width: 1200px;
            margin: 0 auto;
            overflow: hidden;
            padding: 20px 60px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.1);
            border: 2px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
        }
        
        .ups-certificates-grid {
            display: flex;
            transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
            position: relative;
        }
        
        .ups-certificate {
            min-width: 33.33%;
            padding: 15px;
            box-sizing: border-box;
            flex-shrink: 0;
        }
        
        .ups-certificate-inner {
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.4s ease;
            backdrop-filter: blur(10px);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .ups-certificate:hover .ups-certificate-inner {
            transform: translateY(-15px);
            background: rgba(255, 255, 255, 0.15);
            box-shadow: 0 15px 30px rgba(0,0,0,0.2);
        }
        
        .ups-certificate-img {
            height: 180px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            background: rgba(255,255,255,0.9);
        }
        
        .ups-certificate-img img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }
        
        .ups-certificate-content {
            padding: 20px;
            text-align: center;
            flex-grow: 1;
        }
        
        .ups-certificate h3 {
            margin-bottom: 10px;
            font-size: 1.3rem;
            color: #fff;
        }
        
        .ups-certificate p {
            color: rgba(255,255,255,0.9);
        }
        
        .carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.7);
            border: none;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 20;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        
        .carousel-btn:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-50%) scale(1.1);
        }
        
        .carousel-btn-prev {
            left: 10px;
        }
        
        .carousel-btn-next {
            right: 10px;
        }
        
        /* 合作伙伴 */
        .ups-partners {
            background: white;
            padding: 80px 0;
        }
        
        .partners-carousel {
            position: relative;
            max-width: 100%;
            margin: 0 auto;
            padding: 30px 60px;
            border-radius: 16px;
            background: rgba(245, 247, 250, 0.8);
            border: 2px solid rgba(0, 86, 179, 0.15);
            box-shadow: 0 15px 35px rgba(0, 86, 179, 0.12);
            overflow: hidden;
        }
        
        .ups-partners-grid {
            display: flex;
            transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
            position: relative;
        }
        
        .ups-partner {
            min-width: 20%;
            padding: 15px;
            box-sizing: border-box;
            flex-shrink: 0;
            display: flex;
            justify-content: center;
        }
        
        .ups-partner-inner {
            height: 150px;
            width: 100%;
            background: white;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 25px;
            transition: all 0.4s ease;
            border: 1px solid #eaeaea;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 极.05);
        }
        
        .ups-partner-inner:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
            border-color: var(--accent);
        }
        
        .partners-carousel-btn {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0, 86, 179, 0.12);
            border: none;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            font-size: 1.8rem;
            color: var(--primary);
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 20;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 15px rgba(0, 86, 179, 0.15);
            border: 2px solid rgba(0, 86, 179, 0.1);
        }
        
        .partners-carousel-btn:hover {
            background: rgba(0, 86, 179, 0.2);
            transform: translateY(-50%) scale(1.1);
        }
        
        .partners-carousel-prev {
            left: 10px;
        }
        
        .partners-carousel-next {
            right: 10px;
        }
        
        /* 底部CTA */
        .ups-cta {
            text-align: center;
            padding: 100px 0;
            background: linear-gradient(135deg, #1a3c6c 0%, var(--primary) 100%);
            color: white;
        }
        
        .ups-cta h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
        }
        
        .ups-cta p {
            max-width: 700px;
            margin: 20px auto;
            font-size: 1.2rem;
            opacity: 0.9;
        }
        
        .ups-cta .ups-btn {
            background: white;
            color: var(--primary);
            font-size: 1.1rem;
            padding: 15px 40px;
            margin-top: 30px;
        }
        
        .ups-cta .ups-btn:hover {
            background: var(--accent);
            color: white;
            border-color: white;
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        @keyframes float {
            0% {
                transform: translateY(0) translateX(0);
            }
            50% {
                transform: translateY(-20px) translateX(10px);
            }
            100% {
                transform: translateY(0) translateX(0);
            }
        }
        
        /* 响应式调整 - 修复发展历程问题 */
        @media (max-width: 1100px) {
            .timeline-line {
                left: 100px;
            }
            
            .timeline-item {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .timeline-item:nth-child(even) {
                flex-direction: column;
            }
            
            .timeline-content {
                width: 80%;
                margin-left: 120px;
                margin-top: 20px;
            }
            
            .timeline-img {
                position: absolute;
                left: 0;
                top: 50%;
                transform: translateY(-50%);
                width: auto;
            }
            
            .timeline-item:nth-child(even) .timeline-content {
                margin-left: 120px;
            }
            
            .timeline-content::before {
                left: -36px;
                right: auto;
            }
        }
        
        @media (max-width: 992px) {
            .ups-hero {
                height: auto;
                padding: 120px 0;
            }
            
            .ups-hero-img {
                position: static;
                width: 100%;
                height: 400px;
                transform: none;
                margin: 40px 0;
            }
            
            .ups-hero-content {
                max-width: 100%;
                text-align: center;
                padding: 0;
            }
            
            .ups-hero-content p {
                margin: 0 auto 30px;
            }
            
            .ups-certificate {
                min-width: 50%;
            }
            
            .ups-partner {
                min-width: 33.33%;
            }
        }
        
        @media (max-width: 768px) {
            .ups-hero h1 {
                font-size: 2.8rem;
            }
            
            .ups-about-features {
                grid-template-columns: 1fr;
            }
            
            .ups-certificate {
                min-width: 100%;
            }
            
            .ups-partner {
                min-width: 50%;
            }
            
            .timeline-content {
                width: auto;
                margin-left: 60px;
                margin-top: 20px;
            }
            
            .timeline-img {
                position: static;
                transform: none;
                margin-bottom: 20px;
                width: 100%;
                justify-content: flex-start;
            }
            
            .timeline-img-inner {
                width: 100px;
                height: 100px;
            }
            
            .timeline-line {
                left: 25px;
            }
            
            .carousel-container, .partners-carousel {
                padding: 20px 15px;
            }
            
            .carousel-btn, .partners-carousel-btn {
                width: 45px;
                height: 45px;
                font-size: 1.3rem;
            }
        }
        
        /* 微交互动画 */
        .ups-animate-on-scroll {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }
        
        .ups-animate-on-scroll.ups-visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* 分隔线装饰 */
        .ups-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0,86,179,0.5), transparent);
            max-width: 1200px;
            margin: 30px auto;
        }