:root {
            --sdlg-red: #c10b0b;
            --sdlg-dark-red: #9c0a0a;
            --sdlg-blue: #0056a6;
            --sdlg-light-gray: #f8f9fa;
            --sdlg-dark-gray: #343a40;
            --sdlg-transition: all 0.3s ease;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            color: #333;
            line-height: 1.6;
        }
        .sdlg-header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        .navbar-brand img {
            height: 60px;
        }
        .nav-link {
            font-weight: 500;
            color: var(--sdlg-dark-gray) !important;
            padding: 0.5rem 1rem !important;
            margin: 0 0.2rem;
            border-radius: 4px;
            transition: var(--sdlg-transition);
        }
        .nav-link:hover, .nav-link.active {
            color: white !important;
            background-color: var(--sdlg-red);
        }
        .sdlg-hero {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80') center/cover no-repeat;
            color: white;
            padding: 100px 0;
            margin-bottom: 50px;
        }
        .sdlg-card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: var(--sdlg-transition);
            height: 100%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }
        .sdlg-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }
        .sdlg-card-img {
            height: 200px;
            object-fit: cover;
        }
        .sdlg-section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            color: var(--sdlg-blue);
            font-weight: bold;
        }
        .sdlg-section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 80px;
            height: 4px;
            background-color: var(--sdlg-red);
        }
        .sdlg-bg-light {
            background-color: var(--sdlg-light-gray);
            padding: 60px 0;
        }
        .sdlg-news-item {
            border-left: 4px solid var(--sdlg-red);
            padding-left: 15px;
            margin-bottom: 25px;
            transition: var(--sdlg-transition);
        }
        .sdlg-news-item:hover {
            border-left-width: 8px;
            padding-left: 11px;
        }
        .sdlg-btn-primary {
            background-color: var(--sdlg-red);
            border-color: var(--sdlg-red);
            color: white;
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 500;
            transition: var(--sdlg-transition);
        }
        .sdlg-btn-primary:hover {
            background-color: var(--sdlg-dark-red);
            border-color: var(--sdlg-dark-red);
            transform: scale(1.05);
        }
        .sdlg-footer {
            background-color: var(--sdlg-dark-gray);
            color: #ddd;
            padding-top: 60px;
        }
        .sdlg-footer a {
            color: #ddd;
            text-decoration: none;
            transition: var(--sdlg-transition);
        }
        .sdlg-footer a:hover {
            color: white;
            padding-left: 5px;
        }
        .sdlg-contact-box {
            background: white;
            border-radius: 10px;
            padding: 30px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            margin-top: -100px;
            position: relative;
            z-index: 10;
        }
        .flink {
            display: inline-block;
            background-color: rgba(255,255,255,0.1);
            color: white;
            padding: 8px 20px;
            margin: 5px 10px 5px 0;
            border-radius: 4px;
            text-decoration: none;
            transition: var(--sdlg-transition);
        }
        .flink:hover {
            background-color: var(--sdlg-red);
            transform: translateY(-3px);
        }
        .friendlink {
            padding: 40px 0;
            background-color: #2c3034;
        }
        .sdlg-stats {
            text-align: center;
            padding: 20px;
        }
        .sdlg-stats-number {
            font-size: 3rem;
            font-weight: bold;
            color: var(--sdlg-red);
            display: block;
        }
        .sdlg-stats-label {
            font-size: 1.1rem;
            color: var(--sdlg-dark-gray);
        }
        @media (max-width: 768px) {
            .navbar-brand img {
                height: 50px;
            }
            .sdlg-hero {
                padding: 60px 0;
            }
            .sdlg-contact-box {
                margin-top: 0;
            }
        }