* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: #333;
            background-color: #fff;
            line-height: 1.6;
        }

        /* 导航栏 */
        .gcs5s-navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
            z-index: 1000;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .gcs5s-nav-wrapper {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .gcs5s-logo {
            display: flex;
            align-items: center;
        }

        .gcs5s-logo img {
            height: 40px;
            width: auto;
        }

        .gcs5s-nav-menu {
            display: flex;
            list-style: none;
            gap: 40px;
            margin: 0;
        }

        .gcs5s-nav-item a {
            text-decoration: none;
            color: #333;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            transition: color 0.3s ease;
        }

        .gcs5s-nav-item a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #1e88e5, #42a5f5);
            transition: width 0.3s ease;
        }

        .gcs5s-nav-item a:hover {
            color: #1e88e5;
        }

        .gcs5s-nav-item a:hover::after {
            width: 100%;
        }

        .gcs5s-nav-item a.gcs5s-active {
            color: #1e88e5;
        }

        .gcs5s-nav-item a.gcs5s-active::after {
            width: 100%;
        }

        .gcs5s-nav-btn {
            padding: 8px 24px;
            background: linear-gradient(135deg, #1e88e5, #42a5f5);
            color: white;
            border: none;
            border-radius: 24px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .gcs5s-nav-btn:hover {
            box-shadow: 0 8px 20px rgba(30, 136, 229, 0.3);
            transform: translateY(-2px);
        }

        /* 顶部区域 */
        .gcs5s-skins-header {
            margin-top: 70px;
            padding: 60px 40px;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            position: relative;
            overflow: hidden;
        }

        .gcs5s-skins-header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(30, 136, 229, 0.1), transparent);
            border-radius: 50%;
        }

        .gcs5s-header-content {
            max-width: 1280px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .gcs5s-breadcrumb {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
            font-size: 13px;
            color: #666;
        }

        .gcs5s-breadcrumb a {
            color: #1e88e5;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .gcs5s-breadcrumb a:hover {
            color: #1565c0;
        }

        .gcs5s-header-title {
            font-size: 48px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 15px;
            letter-spacing: -0.5px;
        }

        .gcs5s-header-subtitle {
            font-size: 18px;
            color: #555;
            max-width: 600px;
            line-height: 1.8;
        }

        /* 过滤区域 */
        .gcs5s-filter-section {
            max-width: 1280px;
            margin: 50px auto 40px;
            padding: 0 40px;
        }

        .gcs5s-filter-title {
            font-size: 18px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 20px;
        }

        .gcs5s-filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .gcs5s-filter-tag {
            padding: 8px 18px;
            background: #f0f2f5;
            border: 1px solid #e0e0e0;
            border-radius: 20px;
            font-size: 14px;
            color: #555;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .gcs5s-filter-tag:hover {
            border-color: #1e88e5;
            color: #1e88e5;
            background: #e3f2fd;
        }

        .gcs5s-filter-tag.gcs5s-active {
            background: linear-gradient(135deg, #1e88e5, #42a5f5);
            color: white;
            border-color: #1e88e5;
        }

        /* 皮肤展示网格 */
        .gcs5s-skins-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 40px;
        }

        .gcs5s-skins-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 24px;
            margin-bottom: 60px;
        }

        .gcs5s-skin-card {
            border-radius: 12px;
            overflow: hidden;
            background: white;
            border: 1px solid #e0e0e0;
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .gcs5s-skin-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(30, 136, 229, 0.15);
            border-color: #1e88e5;
        }

        .gcs5s-skin-preview {
            width: 100%;
            height: 160px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 12px;
            position: relative;
            overflow: hidden;
        }

        .gcs5s-skin-preview img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .gcs5s-skin-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            background: rgba(255, 255, 255, 0.9);
            color: #ff6b6b;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
        }

        .gcs5s-skin-info {
            padding: 16px;
        }

        .gcs5s-skin-name {
            font-size: 15px;
            font-weight: 600;
            color: #1a1a1a;
            margin-bottom: 8px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .gcs5s-skin-author {
            font-size: 12px;
            color: #999;
            margin-bottom: 12px;
        }

        .gcs5s-skin-stats {
            display: flex;
            gap: 12px;
            font-size: 12px;
            color: #666;
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid #f0f0f0;
        }

        .gcs5s-skin-stat {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .gcs5s-skin-actions {
            display: flex;
            gap: 8px;
        }

        .gcs5s-skin-btn {
            flex: 1;
            padding: 8px 12px;
            border: 1px solid #e0e0e0;
            background: white;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            color: #1e88e5;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .gcs5s-skin-btn:hover {
            background: #e3f2fd;
            border-color: #1e88e5;
        }

        .gcs5s-skin-btn.gcs5s-download {
            background: linear-gradient(135deg, #1e88e5, #42a5f5);
            color: white;
            border-color: #1e88e5;
        }

        .gcs5s-skin-btn.gcs5s-download:hover {
            background: linear-gradient(135deg, #1565c0, #1e88e5);
            box-shadow: 0 4px 12px rgba(30, 136, 229, 0.3);
        }

        /* 加载更多 */
        .gcs5s-load-more {
            text-align: center;
            padding: 40px 20px;
        }

        .gcs5s-load-btn {
            padding: 12px 40px;
            background: linear-gradient(135deg, #1e88e5, #42a5f5);
            color: white;
            border: none;
            border-radius: 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .gcs5s-load-btn:hover {
            box-shadow: 0 8px 20px rgba(30, 136, 229, 0.3);
            transform: translateY(-2px);
        }

        /* 特色推荐区 */
        .gcs5s-featured-section {
            max-width: 1280px;
            margin: 80px auto;
            padding: 0 40px;
        }

        .gcs5s-section-title {
            font-size: 32px;
            font-weight: 700;
            color: #1a1a1a;
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }

        .gcs5s-section-title::after {
            content: '';
            position: absolute;
            bottom: -15px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, #1e88e5, #42a5f5);
            border-radius: 2px;
        }

        .gcs5s-featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 50px;
        }

        .gcs5s-featured-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }

        .gcs5s-featured-card:hover {
            transform: translateY(-12px);
            box-shadow: 0 16px 32px rgba(30, 136, 229, 0.15);
        }

        .gcs5s-featured-image {
            width: 100%;
            height: 200px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .gcs5s-featured-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .gcs5s-featured-content {
            padding: 24px;
        }

        .gcs5s-featured-name {
            font-size: 18px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 12px;
        }

        .gcs5s-featured-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .gcs5s-featured-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .gcs5s-tag {
            background: #f0f2f5;
            color: #666;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 500;
        }

        .gcs5s-featured-action {
            display: flex;
            gap: 12px;
        }

        .gcs5s-preview-btn, .gcs5s-download-featured {
            flex: 1;
            padding: 10px 16px;
            border: 1px solid #e0e0e0;
            background: white;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .gcs5s-preview-btn:hover {
            border-color: #1e88e5;
            color: #1e88e5;
        }

        .gcs5s-download-featured {
            background: linear-gradient(135deg, #1e88e5, #42a5f5);
            color: white;
            border-color: #1e88e5;
        }

        .gcs5s-download-featured:hover {
            box-shadow: 0 4px 12px rgba(30, 136, 229, 0.3);
        }

        /* 自定义皮肤区域 */
        .gcs5s-custom-section {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            margin: 80px 0 0;
            padding: 60px 40px;
        }

        .gcs5s-custom-wrapper {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .gcs5s-custom-content h2 {
            font-size: 32px;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 20px;
        }

        .gcs5s-custom-content p {
            font-size: 15px;
            color: #555;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .gcs5s-custom-features {
            margin: 24px 0;
        }

        .gcs5s-custom-feature {
            display: flex;
            gap: 12px;
            margin-bottom: 16px;
        }

        .gcs5s-custom-feature-icon {
            font-size: 24px;
            flex-shrink: 0;
        }

        .gcs5s-custom-feature-text {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        .gcs5s-custom-btn {
            padding: 12px 32px;
            background: linear-gradient(135deg, #1e88e5, #42a5f5);
            color: white;
            border: none;
            border-radius: 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 16px;
        }

        .gcs5s-custom-btn:hover {
            box-shadow: 0 8px 20px rgba(30, 136, 229, 0.3);
            transform: translateY(-2px);
        }

        .gcs5s-custom-image {
            position: relative;
            height: 400px;
        }

        .gcs5s-custom-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.15);
        }

        /* 页脚 */
        .gcs5s-footer {
            background: #1a1a1a;
            color: #ccc;
            padding: 60px 40px 20px;
            margin-top: 80px;
        }

        .gcs5s-footer-content {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .gcs5s-footer-section h3 {
            color: white;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .gcs5s-footer-section ul {
            list-style: none;
        }

        .gcs5s-footer-section li {
            margin-bottom: 10px;
        }

        .gcs5s-footer-section a {
            color: #ccc;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s ease;
        }

        .gcs5s-footer-section a:hover {
            color: #1e88e5;
        }

        .gcs5s-footer-bottom {
            max-width: 1280px;
            margin: 0 auto;
            padding-top: 30px;
            border-top: 1px solid #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .gcs5s-footer-brand {
            font-size: 14px;
            color: white;
            font-weight: 600;
        }

        .gcs5s-footer-links {
            display: flex;
            gap: 30px;
        }

        .gcs5s-footer-links a {
            color: #ccc;
            text-decoration: none;
            font-size: 12px;
            transition: color 0.3s ease;
        }

        .gcs5s-footer-links a:hover {
            color: #1e88e5;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .gcs5s-nav-wrapper {
                padding: 0 20px;
            }

            .gcs5s-nav-menu {
                gap: 20px;
            }

            .gcs5s-header-title {
                font-size: 32px;
            }

            .gcs5s-header-subtitle {
                font-size: 15px;
            }

            .gcs5s-skins-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
                gap: 16px;
            }

            .gcs5s-featured-grid {
                grid-template-columns: 1fr;
            }

            .gcs5s-custom-wrapper {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .gcs5s-custom-image {
                height: 300px;
            }

            .gcs5s-footer-bottom {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }

            .gcs5s-footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .gcs5s-navbar {
                height: auto;
            }

            .gcs5s-nav-wrapper {
                flex-direction: column;
                padding: 15px 20px;
                height: auto;
            }

            .gcs5s-nav-menu {
                width: 100%;
                gap: 15px;
                margin-top: 15px;
                flex-wrap: wrap;
            }

            .gcs5s-skins-header {
                padding: 40px 20px;
            }

            .gcs5s-header-title {
                font-size: 24px;
            }

            .gcs5s-filter-section {
                padding: 0 20px;
            }

            .gcs5s-skins-container {
                padding: 20px;
            }

            .gcs5s-skins-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .gcs5s-featured-section {
                padding: 0 20px;
            }

            .gcs5s-custom-section {
                padding: 40px 20px;
            }

            .gcs5s-custom-content h2 {
                font-size: 24px;
            }

            .gcs5s-footer-content {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }