/* 轮播图 */
        .hero {
            height: 100vh;
            position: relative;
            overflow: hidden;
            margin-top: 70px;
        }

        .slides {
            height: 100%;
            position: relative;
        }

        .slide {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            opacity: 0;
            transition: opacity 1s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            background-size: cover;
            background-position: center;
        }

        .slide.active {
            opacity: 1;
        }

        .slide::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.4);
        }

        .slide-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: white;
            max-width: 800px;
            padding: 0 20px;
            transform: translateY(50px);
            opacity: 0;
            transition: all 0.8s ease;
        }

        .slide.active .slide-content {
            transform: translateY(0);
            opacity: 1;
        }

        .slide-content h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
        }

        .slide-content p {
            font-size: 1.3rem;
            margin-bottom: 30px;
        }

        .slide-indicators {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            z-index: 10;
        }

        .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.5);
            margin: 0 8px;
            cursor: pointer;
            transition: var(--transition);
        }

        .indicator.active {
            background: white;
            transform: scale(1.2);
        }

        /* 企业服务区 */
        .enterprise-services {
            padding: 100px 0;
            background: var(--light-color);
        }

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

        .service-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            text-align: center;
            padding: 30px 20px;
            position: relative;
            z-index: 1;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 5px;
            background: var(--primary-color);
            transform: scaleX(0);
            transition: var(--transition);
            z-index: -1;
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-card:hover {
            transform: translateY(-10px);
        }

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

        .service-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark-color);
        }

        .service-price {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-color);
            margin-bottom: 15px;
        }

        .service-card p {
            color: var(--text-color);
        }

        /* 广告区 */
        .promo-banner {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            text-align: center;
        }

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

        .promo-content h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .promo-content p {
            font-size: 1.3rem;
            margin-bottom: 30px;
        }

        .free-services {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .free-service {
            background: rgba(255, 255, 255, 0.2);
            padding: 15px 25px;
            border-radius: 30px;
            font-weight: 600;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .free-service:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: translateY(-5px);
        }

        .promo-subtitle {
            margin-top: 40px;
            font-size: 1.2rem;
            font-weight: 600;
            opacity: 0.9;
        }

        /* 中间广告横幅 */
        .promo-banner-middle {
            padding: 70px 0;
            background: linear-gradient(135deg, var(--primary-color), #0d2b52);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .promo-banner-middle::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 1%, transparent 1%);
            background-size: 20px 20px;
            animation: float 20s linear infinite;
            opacity: 0.5;
        }

        @keyframes float {
            0% { transform: translate(0, 0) rotate(0deg); }
            100% { transform: translate(-50px, -50px) rotate(360deg); }
        }

        .promo-content-middle h2 {
            font-size: 2.3rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .highlight-text {
            color: var(--accent-color);
            text-shadow: 0 0 10px rgba(255, 152, 0, 0.3);
        }

        .promo-content-middle p {
            font-size: 1.2rem;
            margin-bottom: 25px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            opacity: 0.9;
        }

        .btn-promo {
            background: var(--accent-color);
            color: white;
            font-weight: 700;
            padding: 12px 35px;
            border-radius: 30px;
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }

        .btn-promo:hover {
            background: #ff8500;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(255, 152, 0, 0.3);
        }

        /* 核心优势 */
        .core-advantages {
            padding: 100px 0;
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .advantage-card {
            background: white;
            border-radius: 8px;
            padding: 30px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .advantage-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(26, 75, 140, 0.1), transparent);
            transition: left 0.7s ease;
            z-index: -1;
        }

        .advantage-card:hover::before {
            left: 100%;
        }

        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

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

        .advantage-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark-color);
        }

        .advantage-card p {
            color: var(--text-color);
        }

        /* 关于我们 */
        .about-us {
            padding: 100px 0;
            background: var(--light-color);
        }

        .about-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h2 {
            font-size: 2.2rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }

        .about-text p {
            margin-bottom: 20px;
            font-size: 1.1rem;
        }

        .about-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
            background: white;
            border-radius: 8px;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .stat-item:hover {
            transform: translateY(-5px);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }

        .stat-text {
            font-size: 1rem;
            color: var(--text-color);
        }

        .about-image {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .about-image img {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }

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

        /* 服务流程 */
        .service-process {
            padding: 100px 0;
        }

        .process-container {
            position: relative;
            max-width: 1000px;
            margin: 0 auto;
        }

        .process-line {
            position: absolute;
            top: 50%;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary-color);
            transform: translateY(-50%);
            z-index: -1;
        }

        .process-steps {
            display: flex;
            justify-content: space-between;
            position: relative;
        }

        .process-step {
            text-align: center;
            width: 20%;
            position: relative;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease;
        }

        .process-step.animate {
            opacity: 1;
            transform: translateY(0);
        }

        .step-icon {
            width: 80px;
            height: 80px;
            background: white;
            border: 3px solid var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--primary-color);
            position: relative;
            z-index: 2;
            transition: var(--transition);
            animation: stepIconFloat 3s ease-in-out infinite;
        }

        @keyframes stepIconFloat {
            0% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
            100% { transform: translateY(0); }
        }

        .process-step:hover .step-icon {
            background: var(--primary-color);
            color: white;
            transform: scale(1.1);
            box-shadow: 0 0 0 10px rgba(26, 75, 140, 0.2);
            animation: iconPulse 1.5s infinite;
        }

        @keyframes iconPulse {
            0% { box-shadow: 0 0 0 0 rgba(26, 75, 140, 0.4); }
            70% { box-shadow: 0 0 0 15px rgba(26, 75, 140, 0); }
            100% { box-shadow: 0 0 0 0 rgba(26, 75, 140, 0); }
        }

        .step-content h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--dark-color);
        }

        .step-content p {
            font-size: 0.9rem;
            color: var(--text-color);
        }

        /* 后院事广告横幅 */
        .promo-backyard {
            padding: 80px 0;
            background: linear-gradient(135deg, #2e7d32, #1b5e20);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .promo-backyard::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.1)"/></svg>');
            background-size: cover;
        }

        .promo-backyard-content h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            position: relative;
        }

        .promo-backyard-content p {
            font-size: 1.3rem;
            margin-bottom: 30px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-backyard {
            background: white;
            color: var(--secondary-color);
            font-weight: 700;
            padding: 12px 35px;
            border-radius: 30px;
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }

        .btn-backyard:hover {
            background: #f5f5f5;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
        }

        /* 知识库 */
        .knowledge-base {
            padding: 100px 0;
            background: var(--light-color);
        }

        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .article-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .article-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }

        .article-image {
            height: 200px;
            overflow: hidden;
        }

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

        .article-card:hover .article-image img {
            transform: scale(1.1);
        }

        .article-content {
            padding: 20px;
        }

        .article-content h3 {
            font-size: 1.3rem;
            margin-bottom: 10px;
            color: var(--dark-color);
        }

        .article-content p {
            color: var(--text-color);
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

        .article-meta {
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #777;
        }

        /* 独享部分响应式设计 */
        @media (max-width: 992px) {
            .about-content {
                grid-template-columns: 1fr;
            }
            
            .slide-content h1 {
                font-size: 2.8rem;
            }
            
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .process-steps {
                flex-direction: column;
                align-items: center;
            }
            
            .process-step {
                width: 100%;
                margin-bottom: 40px;
            }
            
            .process-line {
                display: none;
            }
            
            .slide-content h1 {
                font-size: 2.2rem;
            }
            
            .slide-content p {
                font-size: 1.1rem;
            }
            
            .services-grid {
                grid-template-columns: 1fr;
            }
            
            .free-services {
                flex-direction: column;
                align-items: center;
            }
            
            .promo-content-middle h2 {
                font-size: 1.8rem;
            }
            
            .promo-content-middle p {
                font-size: 1.1rem;
            }
            
            .promo-backyard-content h2 {
                font-size: 1.8rem;
            }
            
            .promo-backyard-content p {
                font-size: 1.1rem;
            }
            
            .about-stats {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 576px) {
            .slide-content h1 {
                font-size: 1.8rem;
            }
            
            .promo-content h2 {
                font-size: 1.8rem;
            }
            
            .promo-content p {
                font-size: 1.1rem;
            }
        }