:root {
            --primary-color: #a855f7;
            --primary-dark: #9333ea;
            --secondary-color: #ec4899;
            --dark-color: #1f2937;
            --light-color: #f9fafb;
            --gray-color: #6b7280;
        }
        body {
            font-family: "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
            color: var(--dark-color);
            line-height: 1.6;
            overflow-x: hidden;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-color) !important;
        }
        .hero-section {
            background: linear-gradient(135deg, rgba(168,85,247,0.1) 0%, rgba(236,72,153,0.05) 100%);
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-section::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -10%;
            width: 70%;
            height: 200%;
            background: radial-gradient(circle, rgba(168,85,247,0.08) 0%, transparent 70%);
            z-index: 0;
        }
        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
        }
        .section-title {
            position: relative;
            padding-bottom: 15px;
            margin-bottom: 40px;
            font-weight: 700;
        }
        .section-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 70px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            border-radius: 2px;
        }
        .card-hover {
            transition: all 0.3s ease;
            border: none;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            overflow: hidden;
        }
        .card-hover:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(168,85,247,0.15);
        }
        .work-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            z-index: 2;
            font-size: 0.75rem;
        }
        .btn-primary {
            background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
            border: none;
            padding: 10px 25px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(168,85,247,0.3);
        }
        .btn-secondary {
            background: linear-gradient(90deg, var(--secondary-color), #db2777);
            border: none;
            padding: 10px 25px;
            font-weight: 600;
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(236,72,153,0.3);
        }
        .footer {
            background-color: var(--dark-color);
            color: var(--light-color);
            padding: 60px 0 30px;
        }
        .footer a {
            color: #d1d5db;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer a:hover {
            color: white;
        }
        .friendlink .flink {
            display: inline-block;
            margin: 5px 15px;
            padding: 8px 20px;
            background-color: #f3f4f6;
            border-radius: 50px;
            color: var(--dark-color);
            font-weight: 500;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .friendlink .flink:hover {
            background-color: var(--primary-color);
            color: white;
            transform: translateY(-3px);
        }
        .img-container {
            overflow: hidden;
            border-radius: 10px;
        }
        .img-container img {
            transition: transform 0.5s ease;
        }
        .img-container:hover img {
            transform: scale(1.05);
        }
        .nav-link {
            font-weight: 500;
            position: relative;
            padding: 8px 15px !important;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 15px;
            width: 0;
            height: 2px;
            background-color: var(--primary-color);
            transition: width 0.3s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: calc(100% - 30px);
        }
        .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: 20px;
            cursor: pointer;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background-color: rgba(255,255,255,0.9);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 24px;
            transition: all 0.3s ease;
            z-index: 2;
        }
        .play-btn:hover {
            background-color: white;
            transform: translate(-50%, -50%) scale(1.1);
        }
        .video-thumbnail {
            position: relative;
            cursor: pointer;
        }
        .video-thumbnail::after {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.2);
            border-radius: 10px;
            transition: background-color 0.3s ease;
        }
        .video-thumbnail:hover::after {
            background-color: rgba(0,0,0,0.1);
        }
        .latest-badge {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: #ef4444;
            color: white;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            z-index: 2;
        }
        .modal-video {
            width: 100%;
            height: 400px;
            border-radius: 10px;
        }
        @media (max-width: 768px) {
            .modal-video {
                height: 250px;
            }
        }
        .seo-text {
            font-size: 0.9rem;
            line-height: 1.8;
            color: var(--gray-color);
        }
        .seo-keyword {
            color: var(--primary-color);
            font-weight: 500;
        }