/* ===== 公共CSS部分 ===== */
        :root {
            --primary-color: #1a3a5f;
            --secondary-color: #c9a96e;
            --accent-color: #2c5aa0;
            --light-color: #f8f9fa;
            --dark-color: #212529;
            --gray-color: #6c757d;
            --transition: all 0.5s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

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

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

        /* 导航栏样式 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            transition: var(--transition);
        }

        header.scrolled {
            background-color: rgba(255, 255, 255, 0.98);
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
        }

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

        .logo {
            display: flex;
            align-items: center;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 700;
            color: var(--primary-color);
            position: relative;
            overflow: hidden;
        }

        .logo-text span {
            color: var(--secondary-color);
        }

        .logo-beam {
            position: absolute;
            top: 0;
            left: -100%;
            width: 50%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
            animation: beam 3s infinite;
        }

        @keyframes beam {
            0% { left: -100%; }
            100% { left: 200%; }
        }

        .nav-menu {
            display: flex;
            list-style: none;
        }

        .nav-item {
            margin-left: 30px;
        }

        .nav-link {
            text-decoration: none;
            color: var(--dark-color);
            font-weight: 600;
            font-size: 16px;
            transition: var(--transition);
            position: relative;
        }

        .nav-link:hover {
            color: var(--secondary-color);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--secondary-color);
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .phone-number {
            display: flex;
            align-items: center;
            font-weight: 700;
            color: var(--primary-color);
            font-size: 18px;
        }

        .phone-number i {
            margin-right: 8px;
            color: var(--secondary-color);
        }

        .mobile-toggle {
            display: none;
            font-size: 24px;
            cursor: pointer;
        }

        /* 底部样式 */
        footer {
            background-color: var(--primary-color);
            color: white;
            padding: 60px 0 20px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }

        .footer-section h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: var(--secondary-color);
            position: relative;
            padding-bottom: 10px;
        }

        .footer-section h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--secondary-color);
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--secondary-color);
            padding-left: 5px;
        }

        .contact-info {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .contact-info i {
            margin-right: 10px;
            color: var(--secondary-color);
        }

        .qrcode {
            width: 120px;
            height: 120px;
            background-color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 5px;
            margin-top: 10px;
        }

        .qrcode img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
        }

        .friend-links a {
            color: #ddd;
            text-decoration: none;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: var(--secondary-color);
        }

        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            color: #aaa;
        }