:root {
            --primary-color: #c29d7f;
            --secondary-color: #f8f5f1;
            --accent-color: #d4a574;
            --dark-color: #333;
            --light-color: #fff;
        }
        body {
            font-family: 'Microsoft YaHei', 'Segoe UI', sans-serif;
            color: #444;
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4 {
            font-weight: 600;
            color: var(--dark-color);
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .nav-link {
            font-weight: 500;
            padding: 0.5rem 1.2rem !important;
            transition: color 0.3s;
        }
        .nav-link:hover, .nav-link.active {
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1511795409834-ef04bbd61622?ixlib=rb-4.0.3&auto=format&fit=crop&w=2069&q=80') center/cover no-repeat;
            color: white;
            padding: 160px 0 100px;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .section-padding {
            padding: 100px 0;
        }
        .section-title {
            position: relative;
            margin-bottom: 60px;
            text-align: center;
        }
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--primary-color);
        }
        .service-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.5s, box-shadow 0.5s;
            height: 100%;
            background: var(--secondary-color);
        }
        .service-card:hover {
            transform: translateY(-15px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .service-icon {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 20px;
        }
        .img-hover-zoom {
            overflow: hidden;
        }
        .img-hover-zoom img {
            transition: transform 0.7s ease;
        }
        .img-hover-zoom:hover img {
            transform: scale(1.1);
        }
        .team-member {
            text-align: center;
            margin-bottom: 30px;
        }
        .team-img {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid var(--secondary-color);
            margin-bottom: 20px;
            transition: border-color 0.3s;
        }
        .team-member:hover .team-img {
            border-color: var(--primary-color);
        }
        .contact-info-box {
            background: var(--secondary-color);
            padding: 30px;
            border-radius: 10px;
            height: 100%;
            transition: background 0.3s;
        }
        .contact-info-box:hover {
            background: #eee;
        }
        .contact-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        .flink {
            display: inline-block;
            padding: 10px 20px;
            margin: 5px 10px;
            background: var(--secondary-color);
            border-radius: 5px;
            text-decoration: none;
            color: var(--dark-color);
            transition: all 0.3s;
            border: 1px solid #ddd;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background: #222;
            color: #bbb;
            padding: 70px 0 20px;
        }
        footer a {
            color: #bbb;
            text-decoration: none;
            transition: color 0.3s;
        }
        footer a:hover {
            color: var(--primary-color);
        }
        .social-icons a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            margin-right: 10px;
            transition: background 0.3s;
        }
        .social-icons a:hover {
            background: var(--primary-color);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            opacity: 0;
            transition: opacity 0.5s;
            z-index: 1000;
        }
        .back-to-top.show {
            opacity: 1;
        }
        .btn-primary-custom {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 12px 30px;
            font-weight: 600;
            transition: all 0.3s;
        }
        .btn-primary-custom:hover {
            background-color: var(--accent-color);
            border-color: var(--accent-color);
            transform: translateY(-3px);
        }
        .testimonial-card {
            background: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            margin: 15px 0;
            border-left: 5px solid var(--primary-color);
        }
        .process-step {
            text-align: center;
            padding: 20px;
            position: relative;
        }
        .process-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            background: var(--primary-color);
            color: white;
            font-size: 1.8rem;
            font-weight: bold;
            border-radius: 50%;
            margin-bottom: 20px;
        }
        @media (max-width: 576px) {
            .section-padding {
                padding: 60px 0;
            }
        }