:root {
            --primary-color: #e63946;
            --secondary-color: #f4a261;
            --dark-color: #2a2d34;
            --light-color: #f8f9fa;
            --accent-color: #457b9d;
        }
        body {
            font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
            background-color: #fefefe;
            color: #333;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            color: var(--primary-color) !important;
            font-size: 1.5rem;
        }
        .hero-section {
            background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1519692933481-e162a57d6721?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
            color: white;
            padding: 120px 0;
            position: relative;
        }
        .section-title {
            border-left: 5px solid var(--primary-color);
            padding-left: 15px;
            margin-bottom: 30px;
            color: var(--dark-color);
            font-weight: 600;
        }
        .card {
            border: none;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            margin-bottom: 20px;
            height: 100%;
        }
        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.1);
        }
        .card-img-top {
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-img-top {
            transform: scale(1.05);
        }
        .badge-custom {
            background-color: var(--primary-color);
            font-size: 0.7rem;
            padding: 5px 10px;
        }
        .work-card .btn {
            background-color: var(--primary-color);
            border: none;
        }
        .work-card .btn:hover {
            background-color: #c1121f;
        }
        .gallery-item {
            position: relative;
            overflow: hidden;
            border-radius: 10px;
            margin-bottom: 20px;
        }
        .gallery-item img {
            width: 100%;
            height: 250px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .gallery-item:hover img {
            transform: scale(1.1);
        }
        .gallery-overlay {
            position: absolute;
            bottom: 0;
            background: rgba(0,0,0,0.7);
            color: white;
            width: 100%;
            padding: 10px;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }
        .gallery-item:hover .gallery-overlay {
            transform: translateY(0);
        }
        .video-container {
            position: relative;
            padding-bottom: 56.25%;
            height: 0;
            overflow: hidden;
            border-radius: 10px;
            margin-bottom: 20px;
        }
        .video-container iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
        }
        .friendlink {
            background-color: var(--light-color);
            padding: 40px 0;
        }
        .flink {
            display: inline-block;
            margin: 5px 10px;
            padding: 8px 15px;
            background: white;
            border-radius: 5px;
            color: var(--dark-color);
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid #ddd;
        }
        .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        footer {
            background-color: var(--dark-color);
            color: #ccc;
            padding: 40px 0 20px;
        }
        .social-icons a {
            color: #ccc;
            font-size: 1.2rem;
            margin: 0 10px;
            transition: color 0.3s ease;
        }
        .social-icons a:hover {
            color: var(--primary-color);
        }
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background-color: var(--primary-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
            z-index: 1000;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .back-to-top.visible {
            opacity: 1;
        }
        .back-to-top:hover {
            background-color: #c1121f;
            color: white;
        }
        .info-box {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 30px;
            border-left: 5px solid var(--accent-color);
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 80px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
        }