:root {
            --primary-color: #c00a27;
            --secondary-color: #f8b62d;
            --dark-color: #333333;
            --light-color: #f8f9fa;
            --gray-color: #6c757d;
        }
        body {
            font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
            color: var(--dark-color);
            line-height: 1.8;
            overflow-x: hidden;
        }
        h1, h2, h3, h4, h5 {
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .text-primary { color: var(--primary-color) !important; }
        .bg-primary { background-color: var(--primary-color) !important; }
        .btn-primary {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            padding: 0.75rem 2rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            background-color: #a00820;
            border-color: #a00820;
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(192, 10, 39, 0.2);
        }
        .btn-outline-primary {
            color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .btn-outline-primary:hover {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
        .section-padding {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
        }
        .hero-section {
            background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1563245372-f21724e3856d?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2069&q=80') center/cover no-repeat;
            color: white;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }
        .hero-title {
            font-size: 3.5rem;
            margin-bottom: 1.5rem;
            text-shadow: 2px 2px 5px rgba(0,0,0,0.5);
        }
        @media (max-width: 768px) {
            .hero-title { font-size: 2.5rem; }
        }
        .icon-box {
            background: white;
            padding: 2rem;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            text-align: center;
            height: 100%;
            transition: transform 0.3s ease;
        }
        .icon-box:hover {
            transform: translateY(-10px);
        }
        .icon-box i {
            font-size: 3rem;
            color: var(--primary-color);
            margin-bottom: 1.5rem;
        }
        .feature-card {
            border: none;
            border-radius: 15px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.12);
        }
        .feature-card img {
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .feature-card:hover img {
            transform: scale(1.05);
        }
        .process-step {
            text-align: center;
            position: relative;
            padding: 2rem;
        }
        .step-number {
            width: 70px;
            height: 70px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            font-weight: bold;
            margin: 0 auto 1.5rem;
            position: relative;
            z-index: 2;
        }
        .process-connector {
            position: absolute;
            top: 35px;
            left: 50%;
            width: 100%;
            height: 3px;
            background: var(--primary-color);
            z-index: 1;
        }
        @media (max-width: 768px) {
            .process-connector { display: none; }
        }
        .news-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            transition: all 0.3s ease;
            height: 100%;
        }
        .news-card:hover {
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .news-card img {
            height: 200px;
            object-fit: cover;
        }
        .contact-info-box {
            background: var(--light-color);
            padding: 2rem;
            border-radius: 10px;
            height: 100%;
        }
        .contact-info-box i {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        footer {
            background: var(--dark-color);
            color: white;
            padding-top: 3rem;
        }
        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: color 0.3s ease;
            display: block;
            margin-bottom: 0.5rem;
        }
        .footer-links a:hover {
            color: var(--secondary-color);
        }
        .flink {
            display: inline-block;
            background: white;
            padding: 0.5rem 1rem;
            margin: 0.5rem;
            border-radius: 5px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #ddd;
        }
        .flink:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .navbar {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            padding: 1rem 0;
            transition: all 0.3s ease;
        }
        .navbar-brand {
            font-weight: 800;
            font-size: 1.8rem;
            color: var(--primary-color) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 600;
            color: var(--dark-color) !important;
            margin: 0 0.5rem;
            padding: 0.5rem 1rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
            color: var(--primary-color) !important;
            background-color: rgba(192, 10, 39, 0.05);
        }
        .sticky-nav {
            padding: 0.5rem 0;
            background-color: rgba(255, 255, 255, 0.98);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-color);
            line-height: 1;
        }
        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 0.25rem rgba(192, 10, 39, 0.25);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            z-index: 1000;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .back-to-top.active {
            opacity: 1;
            visibility: visible;
        }
        .back-to-top:hover {
            background-color: #a00820;
        }