/* 🎨 现代化渐变配色方案 - 传奇私服主题 */
        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8C5A;
            --secondary: #2E86AB;
            --accent: #F7931E;
            --accent-light: #FFB84D;
            --success: #10B981;
            --warning: #F59E0B;
            --light: #F0F4F8;
            --dark: #1A2332;
            --text: #2D3748;
            --text-light: #4A5568;
            --border: #E2E8F0;
            --card-bg: #FFFFFF;
            --gradient-1: linear-gradient(135deg, #FF6B35 0%, #F7931E 100%);
            --gradient-2: linear-gradient(135deg, #2E86AB 0%, #10B981 100%);
            --gradient-3: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 8px 24px rgba(255, 107, 53, 0.15);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
            --radius: 8px;
            --radius-lg: 16px;
            --radius-xl: 24px;
        }
        
        * { margin: 0; padding: 0; box-sizing: border-box; }
        
        body {
            font-family: 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: var(--text);
            background: linear-gradient(135deg, #F0F4F8 0%, #E8F0F7 100%);
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            animation: fadeInBody 0.5s ease-in;
        }
        
        @keyframes fadeInBody {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        a:hover {
            color: var(--accent);
            text-decoration: underline;
            transform: translateY(-1px);
        }
        
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 16px;
        }
        
        .hidden { display: none !important; }
        .text-center { text-align: center; }
        
        /* 🎯 进度条 - 动态渐变效果 */
        .progress-bar {
            position: fixed;
            top: 0;
            left: 0;
            height: 4px;
            background: var(--gradient-1);
            z-index: 1001;
            width: 0%;
            box-shadow: 0 0 10px rgba(255, 107, 53, 0.5);
            transition: width 0.3s ease;
        }
        
        /* 🎨 头部 - 玻璃态效果 */
        .header {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 2px solid var(--primary);
            transition: all 0.3s ease;
        }
        
        .header:hover {
            box-shadow: var(--shadow-lg);
        }
        
        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }
        
        /* 🎯 Logo - 渐变动画效果 */
        .logo {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary-dark);
            text-decoration: none;
            transition: all 0.3s ease;
        }
        
        .logo:hover {
            text-decoration: none;
            color: var(--primary);
            transform: scale(1.05);
        }
        
        .logo-icon {
            width: 45px;
            height: 45px;
            background: var(--gradient-1);
            border-radius: 50%;
            margin-right: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 1.3rem;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }
        
        /* 🎯 导航栏 - 悬停动画效果 */
        .nav { display: flex; gap: 30px; }
        
        .nav a {
            color: var(--text);
            font-weight: 600;
            padding: 10px 0;
            position: relative;
            white-space: nowrap;
            transition: all 0.3s ease;
        }
        
        .nav a::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--gradient-1);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }
        
        .nav a:hover {
            text-decoration: none;
            color: var(--primary);
            transform: translateY(-2px);
        }
        
        .nav a:hover::before {
            width: 100%;
        }
        
        .nav a.active {
            color: var(--primary);
            font-weight: 700;
        }
        
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gradient-1);
            border-radius: 3px;
            animation: slideIn 0.3s ease;
        }
        
        @keyframes slideIn {
            from { width: 0; }
            to { width: 100%; }
        }
        
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            background: none;
            border: none;
            cursor: pointer;
            color: var(--dark);
        }
        
        .mobile-nav {
            background-color: var(--card-bg);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            z-index: 999;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        
        .mobile-nav .nav {
            display: flex;
            flex-direction: column;
            padding: 20px 0;
            gap: 0;
        }
        
        .mobile-nav .nav a {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border);
        }
        
        /* 🎯 面包屑导航 - 渐变效果 */
        .breadcrumb {
            font-size: 0.9rem;
            color: var(--text-light);
            padding: 20px 0;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            background: rgba(255, 255, 255, 0.5);
            border-radius: var(--radius);
            padding: 15px 20px;
        }
        
        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
            transition: all 0.3s ease;
        }
        
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: underline;
            transform: translateX(2px);
        }
        
        .breadcrumb .current {
            color: var(--text);
            font-weight: 600;
        }
        
        .breadcrumb-separator {
            margin: 0 10px;
            color: var(--primary);
            font-weight: bold;
        }
        
        /* 主布局 */
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            margin-bottom: 50px;
        }
        
        /* 🎨 主内容区 - 卡片效果 */
        .main-content {
            background: var(--card-bg);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 107, 53, 0.1);
        }
        
        .main-content:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        
        /* 🎯 文章头部 - 渐变背景 */
        .article-header {
            padding: 40px;
            border-bottom: 2px solid var(--border);
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 147, 30, 0.05) 100%);
        }
        
        /* 🎨 文章标签 - 动态效果 */
        .article-tag {
            display: inline-block;
            background: var(--gradient-1);
            color: white;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
            transition: all 0.3s ease;
            animation: fadeInDown 0.5s ease;
        }
        
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .article-tag:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.4);
        }
        
        /* 🎯 文章标题 - 渐变文字效果 */
        .article-title {
            font-size: 2.2rem;
            line-height: 1.3;
            margin-bottom: 20px;
            color: var(--dark);
            font-weight: 800;
            animation: fadeInUp 0.6s ease;
        }
        
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        .article-meta .author-name {
            color: var(--primary);
            font-weight: 500;
        }
        
        .author {
            display: flex;
            align-items: center;
        }
        
        .author img {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            margin-right: 10px;
            object-fit: cover;
        }
        
        .article-body {
            padding: 30px;
        }
        
        .article-excerpt {
            background-color: rgba(255, 87, 34, 0.05);
            border-left: 4px solid var(--accent);
            padding: 20px;
            margin-bottom: 25px;
            border-radius: 0 var(--radius) var(--radius) 0;
        }
        
        .article-excerpt h3 {
            color: var(--accent);
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        /* 🎯 文章摘要 - 渐变边框效果 */
        .article-excerpt {
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.08) 0%, rgba(247, 147, 30, 0.08) 100%);
            border-left: 5px solid var(--primary);
            padding: 25px;
            margin-bottom: 30px;
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            box-shadow: 0 4px 12px rgba(255, 107, 53, 0.1);
            animation: fadeInLeft 0.5s ease;
        }
        
        @keyframes fadeInLeft {
            from {
                opacity: 0;
                transform: translateX(-20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        .article-excerpt h3 {
            color: var(--primary);
            margin-bottom: 15px;
            font-size: 1.3rem;
            font-weight: 700;
        }
        
        /* 🎨 文章内容 - 渐进式动画 */
        .article-content h2 {
            font-size: 1.8rem;
            margin: 35px 0 20px;
            color: var(--dark);
            padding-bottom: 12px;
            border-bottom: 3px solid var(--primary);
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.03) 0%, transparent 100%);
            padding: 15px 20px;
            border-radius: var(--radius);
            animation: fadeInRight 0.5s ease;
        }
        
        @keyframes fadeInRight {
            from {
                opacity: 0;
                transform: translateX(20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }
        
        .article-content h3 {
            font-size: 1.4rem;
            margin: 30px 0 18px;
            color: var(--secondary);
            font-weight: 700;
            animation: fadeInUp 0.4s ease;
        }
        
        .article-content p {
            margin-bottom: 18px;
            line-height: 1.85;
        }
        
        .article-content ul, .article-content ol {
            margin: 20px 0;
            padding-left: 24px;
        }
        
        .article-content li {
            margin-bottom: 10px;
            line-height: 1.7;
        }
        
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            margin: 20px 0;
            display: block;
        }
        
        /* 内链推荐 - 文章内穿插的相关链接 */
        .in-article-link {
            background-color: rgba(51, 102, 153, 0.04);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 15px 20px;
            margin: 20px 0;
            font-size: 0.95rem;
        }
        
        .in-article-link .link-label {
            color: var(--accent);
            font-weight: 600;
            margin-right: 8px;
        }
        
        .in-article-link a {
            font-weight: 500;
        }
        
        .image-container {
            margin: 25px 0;
            text-align: center;
        }
        
        .image-container img {
            box-shadow: var(--shadow);
        }
        
        .highlight-box {
            background-color: rgba(51, 102, 153, 0.05);
            border-radius: var(--radius);
            padding: 20px;
            margin: 25px 0;
            border-left: 4px solid var(--primary);
        }
        
        .highlight-box h3 {
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        /* 🎯 标签 - 动态渐变效果 */
        .tags-container {
            margin-top: 35px;
            padding-top: 30px;
            border-top: 2px solid var(--border);
        }
        
        .tags-title {
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
            font-size: 1.1rem;
        }
        
        .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        
        .tag {
            display: inline-block;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(247, 147, 30, 0.1) 100%);
            color: var(--primary);
            padding: 8px 18px;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 107, 53, 0.2);
            animation: fadeInUp 0.3s ease;
        }
        
        .tag:hover {
            background: var(--gradient-1);
            color: white;
            text-decoration: none;
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
        }
        
        /* 🎨 侧边栏 - 玻璃态卡片效果 */
        .sidebar { display: flex; flex-direction: column; gap: 30px; }
        
        .sidebar-widget {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-lg);
            padding: 25px;
            box-shadow: var(--shadow);
            border: 1px solid rgba(255, 107, 53, 0.1);
            transition: all 0.3s ease;
        }
        
        .sidebar-widget:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        
        .sidebar-title {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--dark);
            display: flex;
            align-items: center;
            font-weight: 700;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary);
        }
        
        .sidebar-title .icon {
            margin-right: 10px;
            color: var(--primary);
            font-style: normal;
            animation: bounce 1s infinite;
        }
        
        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }
        
        /* 🎯 搜索框 - 渐变边框效果 */
        .search-box {
            position: relative;
            margin-bottom: 20px;
        }
        
        .search-box input {
            width: 100%;
            padding: 14px 18px 14px 50px;
            border: 2px solid var(--border);
            border-radius: var(--radius-lg);
            font-size: 0.95rem;
            background: rgba(255, 255, 255, 0.9);
            transition: all 0.3s ease;
        }
        
        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
            background: white;
        }
        
        .search-icon {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--primary);
            font-size: 1.1rem;
        }
        
        /* 🎨 侧边栏列表 - 悬停动画 */
        .sidebar-list {
            list-style: none;
            padding: 0;
        }
        
        .sidebar-list li {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed var(--border);
            transition: all 0.3s ease;
        }
        
        .sidebar-list li:hover {
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 147, 30, 0.05) 100%);
            padding-left: 10px;
            border-radius: var(--radius);
        }
        
        .sidebar-list li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        
        .sidebar-list a {
            color: var(--text);
            font-size: 0.95rem;
            display: block;
            line-height: 1.6;
            font-weight: 500;
        }
        
        .sidebar-list a:hover {
            color: var(--primary);
            text-decoration: underline;
            transform: translateX(3px);
        }
        
        .sidebar-list .count {
            color: var(--primary);
            font-size: 0.8rem;
            float: right;
            background: var(--gradient-1);
            color: white;
            padding: 2px 8px;
            border-radius: 10px;
            font-weight: 600;
        }
        
        /* 热门文章 - 图文样式 */
        .hot-article-item {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border);
        }
        
        .hot-article-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .hot-article-item img {
            width: 70px;
            height: 55px;
            object-fit: cover;
            border-radius: 4px;
            flex-shrink: 0;
        }
        
        .hot-article-item .info {
            flex: 1;
            min-width: 0;
        }
        
        .hot-article-item .info .title {
            font-size: 0.85rem;
            line-height: 1.4;
            color: var(--dark);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .hot-article-item .info .date {
            font-size: 0.75rem;
            color: #999;
            margin-top: 4px;
        }
        
        /* 🎨 友情链接板块 - 渐变卡片效果 */
        .friend-links-section {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-xl);
            padding: 35px;
            box-shadow: var(--shadow-lg);
            border: 1px solid rgba(255, 107, 53, 0.1);
            margin-bottom: 40px;
        }
        
        .friend-links-section .section-title {
            font-size: 1.4rem;
            color: var(--dark);
            font-weight: 700;
            margin-bottom: 8px;
        }
        
        .friend-links-section .section-subtitle {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 25px;
        }
        
        .friend-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
            gap: 15px;
        }
        
        .friend-link-item {
            display: block;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 147, 30, 0.05) 100%);
            border: 1px solid rgba(255, 107, 53, 0.2);
            border-radius: var(--radius);
            padding: 15px 18px;
            text-align: center;
            font-size: 0.9rem;
            color: var(--text);
            transition: all 0.3s ease;
        }
        
        .friend-link-item:hover {
            background: var(--gradient-1);
            border-color: var(--primary);
            color: white;
            text-decoration: none;
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 6px 16px rgba(255, 107, 53, 0.3);
        }
        
        .friend-link-item .fl-name {
            font-weight: 700;
            display: block;
            margin-bottom: 5px;
        }
        
        .friend-link-item .fl-desc {
            font-size: 0.75rem;
            color: var(--text-light);
            display: block;
        }
        
        .friend-link-item:hover .fl-desc {
            color: rgba(255, 255, 255, 0.9);
        }
        
        /* 相关文章 */
        .related-articles {
            margin: 40px 0;
        }
        
        .related-title {
            font-size: 1.5rem;
            margin-bottom: 25px;
            color: var(--dark);
            font-weight: 700;
        }
        
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .article-card {
            background-color: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s ease;
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
        }
        
        .article-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        
        .article-card-img {
            position: relative;
            overflow: hidden;
        }
        
        .article-card-img img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            display: block;
            transition: transform 0.3s ease;
        }
        
        .article-card:hover .article-card-img img {
            transform: scale(1.05);
        }
        
        .article-card-content {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .article-card-category {
            font-size: 0.8rem;
            color: var(--primary);
            margin-bottom: 8px;
            font-weight: 600;
        }
        
        .article-card-title {
            font-size: 1.1rem;
            margin-bottom: 12px;
            line-height: 1.5;
            color: var(--dark);
            font-weight: 600;
            flex: 1;
        }
        
        .article-card-meta {
            font-size: 0.85rem;
            color: var(--text-light);
        }
        
        .article-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 10px;
        }
        
        .article-card-tags .mini-tag {
            font-size: 0.75rem;
            background-color: rgba(51, 102, 153, 0.06);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 10px;
        }
        
        /* 🎨 页脚 - 渐变背景效果 */
        .footer {
            background: linear-gradient(135deg, #1A2332 0%, #2D3748 100%);
            color: rgba(255, 255, 255, 0.85);
            padding: 60px 0 0;
            margin-top: 80px;
            position: relative;
            overflow: hidden;
        }
        
        .footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-1);
        }
        
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
        }
        
        .footer-col h3 {
            color: white;
            font-size: 1.2rem;
            margin-bottom: 20px;
            font-weight: 700;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary);
        }
        
        .footer-desc {
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 15px;
        }
        
        .footer-desc strong {
            color: var(--accent);
        }
        
        .footer-col ul {
            list-style: none;
        }
        
        .footer-col li {
            margin-bottom: 12px;
            transition: all 0.3s ease;
        }
        
        .footer-col li:hover {
            transform: translateX(5px);
        }
        
        .footer-col a {
            color: rgba(255, 255, 255, 0.7);
            transition: all 0.3s ease;
        }
        
        .footer-col a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        
        /* 🎯 页脚友情链接行 - 渐变效果 */
        .footer-friend-links {
            margin-top: 40px;
            padding: 25px 0;
            border-top: 1px solid rgba(255, 107, 53, 0.2);
            border-bottom: 1px solid rgba(255, 107, 53, 0.2);
            background: rgba(255, 107, 53, 0.05);
        }
        
        .footer-friend-links .ffl-title {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            margin-bottom: 15px;
            font-weight: 600;
        }
        
        .footer-friend-links .ffl-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .footer-friend-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            padding: 5px 0;
            transition: all 0.3s ease;
        }
        
        .footer-friend-links a:hover {
            color: var(--accent);
            text-decoration: underline;
            transform: translateY(-2px);
        }
        
        /* 🎨 版权信息 - 渐变边框 */
        .copyright {
            padding: 25px 0;
            text-align: center;
            background: rgba(0, 0, 0, 0.2);
            border-top: 2px solid var(--primary);
        }
        
        .copyright p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        
        .copyright a {
            color: rgba(255, 255, 255, 0.8);
            transition: all 0.3s ease;
        }
        
        .copyright a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        
        /* 🎯 回到顶部 - 渐变动画效果 */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--gradient-1);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.4);
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 999;
            border: none;
            font-size: 1.3rem;
        }
        
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            animation: fadeInUp 0.5s ease;
        }
        
        .back-to-top:hover {
            transform: translateY(-5px) scale(1.1);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
        }
        
        /* SEO隐藏内容 */
        .seo-content {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }
        
        /* 🎯 响应式设计 - 移动端优化 */
        @media (max-width: 992px) {
            .content-wrapper {
                grid-template-columns: 1fr;
                gap: 35px;
            }
            
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            
            .article-title {
                font-size: 1.8rem;
            }
        }
        
        @media (max-width: 768px) {
            .nav { display: none; }
            .menu-toggle { display: block; }
            
            .header-inner { height: 65px; }
            .logo { font-size: 1.3rem; }
            .logo-icon { width: 40px; height: 40px; font-size: 1.1rem; }
            
            .article-header { padding: 25px; }
            .article-body { padding: 25px; }
            .article-title { font-size: 1.5rem; }
            .article-meta { flex-direction: column; gap: 10px; }
            
            .breadcrumb { padding: 12px 15px; }
            
            .articles-grid { grid-template-columns: 1fr; }
            .friend-links-grid { grid-template-columns: repeat(2, 1fr); }
            
            .footer-inner { grid-template-columns: 1fr; gap: 25px; }
            .footer { padding: 40px 0 0; }
            
            .back-to-top {
                width: 45px;
                height: 45px;
                bottom: 20px;
                right: 20px;
                font-size: 1.2rem;
            }
            
            .sidebar-widget { padding: 20px; }
            .sidebar-title { font-size: 1.1rem; }
        }
        
        @media (max-width: 480px) {
            .container { padding: 0 12px; }
            .article-title { font-size: 1.3rem; }
            .article-header { padding: 20px; }
            .article-body { padding: 20px; }
            .friend-links-grid { grid-template-columns: 1fr; }
            
            .tag { padding: 6px 14px; font-size: 0.85rem; }
            .tags { gap: 10px; }
        }