* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Noto Sans SC', sans-serif;
        }

        :root {
            --primary-blue: #007bff;
            --dark-blue: #0056b3;
            --banner-blue: #003f7f;
            --light-blue: #e3f2fd;
            --accent-gold: #ffc107;
            --accent-teal: #20c997;
            --dark-gray: #343a40;
            --light-gray: #f8f9fa;
            --white: #ffffff;
            --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }

        body {
            color: var(--dark-gray);
            line-height: 1.6;
            overflow-x: hidden;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 头部和菜单样式 */
        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-top {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-blue);
        }

        .logo i {
            color: var(--accent-gold);
        }

        .language-selector {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .language-selector a {
            color: var(--dark-gray);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s;
        }

        .language-selector a:hover,
        .language-selector a.active {
            color: var(--primary-blue);
        }

        .language-selector span {
            color: #ddd;
        }

        .mobile-menu-btn {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            color: var(--primary-blue);
            cursor: pointer;
            padding: 5px;
        }

        nav {
            background-color: var(--primary-blue);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            justify-content: space-between;
            position: relative;
        }

        .nav-menu > li {
            flex: 1;
            text-align: center;
            position: relative;
        }

        .nav-menu > li > a {
            display: block;
            color: var(--white);
            text-decoration: none;
            padding: 18px 15px;
            font-weight: 500;
            transition: background-color 0.3s;
        }

        .nav-menu > li:hover > a {
            background-color: var(--dark-blue);
        }

        .submenu {
            position: absolute;
            top: 100%;
            left: 0;
            width: 250px;
            background-color: var(--white);
            box-shadow: var(--shadow);
            display: none;
            padding: 15px;
            border-radius: 0 0 8px 8px;
            z-index: 100;
        }

        .nav-menu > li:hover .submenu {
            display: block;
        }

        .submenu ul {
            list-style: none;
        }

        .submenu ul li {
            margin-bottom: 12px;
        }

        .submenu ul li a {
            color: var(--dark-gray);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color 0.3s;
            padding: 8px 10px;
            border-radius: 4px;
        }

        .submenu ul li a:hover {
            color: var(--primary-blue);
            background-color: var(--light-blue);
        }

        .submenu ul li a i {
            color: var(--accent-teal);
            font-size: 0.8rem;
        }

        /* Banner样式 - 商务合作背景 */
        .contact-banner {
            background: linear-gradient(rgba(0, 63, 127, 0.8), rgba(0, 63, 127, 0.85)), url('images/contact.jpg');
            background-size: cover;
            background-position: center;
            color: var(--white);
            padding: 100px 0 30px;
            text-align: center;
        }

        .contact-banner-content {
            max-width: 800px;
            margin: 0 auto;
        }

        .contact-banner h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

        .contact-banner p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }

        /* 面包屑导航 */
        .breadcrumb {
            background-color: rgba(255, 255, 255, 0.1);
            padding: 15px 0;
            margin-top: 30px;
        }

        .breadcrumb-content {
            text-align: left;
        }

        .breadcrumb ul {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            transition: color 0.3s;
        }

        .breadcrumb a:hover {
            color: var(--accent-gold);
        }

        .breadcrumb span {
            color: var(--accent-gold);
        }

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-button {
            display: inline-block;
            background-color: var(--accent-gold);
            color: var(--dark-gray);
            padding: 15px 35px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .cta-button:hover {
            background-color: var(--white);
            transform: translateY(-3px);
        }

        /* 内容区域 */
        .contact-content-section {
            padding: 80px 0;
            background-color: var(--white);
        }

        .section-title {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-title h2 {
            color: var(--primary-blue);
            font-size: 2.5rem;
            margin-bottom: 15px;
        }

        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }

        /* 联系方式区域 */
        .contact-methods {
            margin-bottom: 80px;
        }

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

        .contact-method-card {
            background-color: var(--light-gray);
            border-radius: 15px;
            padding: 40px 25px;
            text-align: center;
            transition: all 0.3s;
            box-shadow: var(--shadow);
            cursor: pointer;
            position: relative;
            border: 2px solid transparent;
        }

        .contact-method-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-blue);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .contact-method-card.clicked {
            animation: clickEffect 0.5s ease;
        }

        @keyframes clickEffect {
            0% { transform: scale(1); }
            50% { transform: scale(0.95); }
            100% { transform: scale(1); }
        }

        .contact-method-icon {
            width: 80px;
            height: 80px;
            background-color: var(--light-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 25px;
            transition: all 0.3s;
        }

        .contact-method-card:hover .contact-method-icon {
            background-color: var(--primary-blue);
            transform: rotate(10deg);
        }

        .contact-method-icon i {
            font-size: 2.5rem;
            color: var(--primary-blue);
            transition: all 0.3s;
        }

        .contact-method-card:hover .contact-method-icon i {
            color: white;
        }

        .contact-method-card h3 {
            color: var(--primary-blue);
            margin-bottom: 10px;
            font-size: 1.3rem;
        }

        .contact-method-card p {
            color: #666;
            margin-bottom: 15px;
            font-size: 0.9rem;
        }

        .contact-detail {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary-blue);
            margin: 10px 0;
            padding: 10px 0;
            border-radius: 5px;
            transition: all 0.3s;
        }

        .contact-method-card:hover .contact-detail {
            color: var(--dark-blue);
            transform: scale(1.05);
        }

        /* 二维码样式 */
        .qr-code-container {
            margin-top: 20px;
            padding: 15px;
            background-color: white;
            border-radius: 10px;
            display: inline-block;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .qr-code {
            width: 150px;
            height: 150px;
            background-color: #f5f5f5;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto;
            overflow: hidden;
        }

        .qr-code i {
            font-size: 4rem;
            color: var(--primary-blue);
        }

        .qr-code-text {
            margin-top: 10px;
            font-size: 0.9rem;
            color: #666;
        }

        /* 关于我们区域 */
        .about-us {
            background-color: var(--light-gray);
            border-radius: 20px;
            padding: 60px;
            box-shadow: var(--shadow);
            margin-top: 40px;
        }

        .about-us-content {
            display: flex;
            align-items: center;
            gap: 60px;
        }

        .about-us-image {
            flex: 1;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: transform 0.5s;
        }

        .about-us-image:hover {
            transform: scale(1.03);
        }

        .about-us-image img {
            width: 100%;
            height: auto;
            display: block;
        }

        .about-us-text {
            flex: 1;
        }

        .about-us-text h2 {
            color: var(--primary-blue);
            margin-bottom: 25px;
            font-size: 2.2rem;
            position: relative;
            padding-bottom: 15px;
        }

        .about-us-text h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 80px;
            height: 3px;
            background-color: var(--accent-gold);
        }

        .about-us-text p {
            margin-bottom: 20px;
            color: #555;
            line-height: 1.8;
        }

        .about-us-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .about-us-feature {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .about-us-feature i {
            color: var(--accent-teal);
            font-size: 1.5rem;
            margin-top: 5px;
        }

        .about-us-feature h4 {
            color: var(--primary-blue);
            margin-bottom: 5px;
        }

        /* 办公地址区域 */
        .office-locations {
            margin-top: 80px;
        }

        .locations-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 40px;
        }

        .location-card {
            background-color: var(--white);
            border-radius: 15px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }

        .location-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }

        .location-header {
            background-color: var(--primary-blue);
            color: white;
            padding: 20px;
            text-align: center;
        }

        .location-header h3 {
            font-size: 1.3rem;
            margin-bottom: 5px;
        }

        .location-content {
            padding: 25px;
        }

        .location-info {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            margin-bottom: 15px;
        }

        .location-info i {
            color: var(--primary-blue);
            font-size: 1.2rem;
            margin-top: 3px;
        }

        /* 联系我们表单 */
        .contact-form-section {
            background-color: var(--light-gray);
            padding: 80px 0;
            margin-top: 40px;
        }

        .contact-form-container {
            max-width: 800px;
            margin: 0 auto;
            background-color: var(--white);
            border-radius: 20px;
            padding: 50px;
            box-shadow: var(--shadow);
        }

        .form-title {
            text-align: center;
            margin-bottom: 40px;
        }

        .form-title h2 {
            color: var(--primary-blue);
            margin-bottom: 10px;
        }

        .contact-form {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--primary-blue);
            font-weight: 500;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: all 0.3s;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-blue);
            box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
        }

        .form-submit {
            grid-column: span 2;
            text-align: center;
            margin-top: 20px;
        }

        .submit-button {
            background-color: var(--primary-blue);
            color: white;
            border: none;
            padding: 18px 50px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
        }

        .submit-button:hover {
            background-color: var(--dark-blue);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 123, 255, 0.4);
        }

        /* 复制提示 */
        .copy-notification {
            position: fixed;
            top: 100px;
            right: 20px;
            background-color: var(--accent-teal);
            color: white;
            padding: 15px 25px;
            border-radius: 8px;
            box-shadow: var(--shadow);
            z-index: 10000;
            display: none;
            align-items: center;
            gap: 10px;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                transform: translateX(100%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        /* 页脚 - 改为深蓝色 */
        footer {
            background-color: var(--banner-blue);
            color: var(--white);
            padding: 60px 0 30px;
        }

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

        .footer-column h3 {
            color: var(--white);
            margin-bottom: 25px;
            font-size: 1.3rem;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-column h3::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 40px;
            height: 2px;
            background-color: var(--accent-gold);
        }

        .footer-column ul {
            list-style: none;
        }

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

        .footer-column ul li a {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-column ul li a:hover {
            color: var(--accent-gold);
        }

        .footer-column p {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.8;
        }

        .footer-column i {
            color: var(--accent-gold);
            margin-right: 10px;
            width: 20px;
        }

        .copyright {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }

        /* 左侧浮动咨询按钮 */
        .floating-consult-btn {
            position: fixed;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            background-color: rgba(255, 165, 0, 0.8);
            color: white;
            padding: 15px 5px;
            border-radius: 0 8px 8px 0;
            z-index: 999;
            box-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            width: 60px;
            max-width: 60px;
        }

        .floating-consult-btn:hover {
            background-color: rgba(255, 165, 0, 0.95);
            width: 70px;
            padding: 15px 8px;
            box-shadow: 3px 3px 15px rgba(0, 0, 0, 0.3);
        }

        .floating-consult-btn i {
            font-size: 1.8rem;
            margin-bottom: 8px;
        }

        .floating-consult-btn span {
            font-size: 1.1rem;
            font-weight: 600;
            writing-mode: vertical-rl;
            text-orientation: mixed;
            letter-spacing: 2px;
        }

        /* 响应式设计 */
        @media (max-width: 992px) {
            .contact-methods-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .about-us-content {
                flex-direction: column;
                gap: 40px;
            }
            
            .locations-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-content {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .contact-form {
                grid-template-columns: 1fr;
            }
            
            .form-group.full-width {
                grid-column: span 1;
            }
            
            .form-submit {
                grid-column: span 1;
            }
        }

        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
            }
            
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: var(--primary-blue);
                z-index: 1000;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            }
            
            .nav-menu.active {
                display: flex;
            }
            
            .nav-menu > li {
                width: 100%;
                text-align: left;
            }
            
            .nav-menu > li > a {
                padding: 15px 20px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }
            
            .submenu {
                position: static;
                width: 100%;
                display: none;
                background-color: rgba(0, 0, 0, 0.1);
                box-shadow: none;
                padding: 10px 0 10px 30px;
                border-radius: 0;
            }
            
            .nav-menu > li:hover .submenu,
            .nav-menu > li.active .submenu {
                display: block;
            }
            
            .submenu ul li a {
                color: rgba(255, 255, 255, 0.9);
            }
            
            .submenu ul li a:hover {
                background-color: rgba(255, 255, 255, 0.1);
                color: white;
            }
            
            .contact-banner h1 {
                font-size: 2.2rem;
            }
            
            .contact-banner p {
                font-size: 1rem;
            }
            
            .contact-methods-grid {
                grid-template-columns: 1fr;
            }
            
            .locations-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-content {
                grid-template-columns: 1fr;
            }
            
            .about-us {
                padding: 40px 25px;
            }
            
            .contact-form-container {
                padding: 30px 20px;
            }
            
            .floating-consult-btn {
                width: 50px;
                padding: 12px 3px;
            }
            
            .floating-consult-btn i {
                font-size: 1.5rem;
            }
            
            .floating-consult-btn span {
                font-size: 0.75rem;
            }
            
            .about-us-features {
                grid-template-columns: 1fr;
            }
            
            .breadcrumb ul {
                flex-wrap: wrap;
            }
        }