:root {
            --bg-deep: #080918;
            --bg-card: rgba(18, 20, 40, 0.75);
            --bg-card-hover: rgba(25, 28, 55, 0.88);
            --text-primary: #e8e6f0;
            --text-secondary: #b8b5cc;
            --text-muted: #8a87a0;
            --accent-1: #a855f7;
            --accent-2: #ec4899;
            --accent-3: #06b6d4;
            --accent-4: #f59e0b;
            --gradient-1: linear-gradient(135deg, #a855f7, #6366f1, #3b82f6);
            --glass-border: rgba(255, 255, 255, 0.08);
            --glass-border-strong: rgba(255, 255, 255, 0.15);
            --glow-purple: 0 0 30px rgba(168, 85, 247, 0.3);
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 22px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(255, 255, 255, 0.04) inset;
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.55), 0 1px 0 rgba(255, 255, 255, 0.06) inset;
            --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-body: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-body);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            -webkit-font-smoothing: antialiased;
            background-image:
                radial-gradient(ellipse at 15% 10%, rgba(168, 85, 247, 0.07) 0%, transparent 60%),
                radial-gradient(ellipse at 75% 20%, rgba(236, 72, 153, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 40% 70%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
                radial-gradient(ellipse at 85% 80%, rgba(245, 158, 11, 0.04) 0%, transparent 45%);
            background-attachment: fixed;
        }

        .container { max-width: 1320px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

        /* 导航栏 */
        .site-header {
            position: sticky; top: 0; z-index: 1000;
            background: rgba(10, 11, 26, 0.82);
            backdrop-filter: blur(20px) saturate(160%);
            -webkit-backdrop-filter: blur(20px) saturate(160%);
            border-bottom: 1px solid var(--glass-border);
            box-shadow: 0 1px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
        .logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 1.5rem; color: #fff; }
        .logo-icon { width: 40px; height: 40px; border-radius: 12px; background: var(--gradient-1); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; box-shadow: var(--glow-purple); }
        .logo-icon::before { content: "⭐"; }
        .main-nav { display: flex; align-items: center; gap: 10px; list-style: none; }
        .main-nav a { padding: 8px 18px; border-radius: 30px; text-decoration: none; color: var(--text-secondary); font-weight: 600; font-size: 0.95rem; transition: var(--transition-fast); }
        .main-nav a:hover, .main-nav a.active { color: #fff; background: rgba(255, 255, 255, 0.06); }
        .main-nav a.active { background: rgba(168, 85, 247, 0.2); color: #c084fc; box-shadow: 0 0 20px rgba(168, 85, 247, 0.15); }
        .mobile-menu-btn {
            display: none; background: none; border: 1px solid rgba(168,85,247,0.4);
            color: var(--accent-1); font-size: 1.6rem; padding: 6px 12px; border-radius: 8px;
            cursor: pointer; transition: var(--transition-fast); margin-left: auto;
        }
        .mobile-menu-btn:hover { background: rgba(168,85,247,0.15); box-shadow: var(--glow-purple); }

        /* 面包屑 */
        .breadcrumb { padding: 14px 0; font-size: 0.85rem; color: var(--text-muted); display: flex; flex-wrap: wrap; gap: 6px; align-items: center; white-space: normal; word-break: break-word; }
        .breadcrumb a { color: var(--text-secondary); text-decoration: none; white-space: nowrap; }
        .breadcrumb a:hover { color: #c084fc; }
        .breadcrumb .current { color: #c084fc; font-weight: 600; }

        /* 内容区块 */
        .section-block { background: var(--bg-card); border-radius: var(--radius-lg); border: 1px solid var(--glass-border); padding: 24px 24px; backdrop-filter: blur(10px); box-shadow: var(--shadow-card); margin-bottom: 30px; position: relative; overflow: hidden; }
        .section-block::before { content: ''; position: absolute; top:0; left:0; right:0; height: 2px; background: linear-gradient(90deg, transparent, var(--accent-1), transparent); opacity: 0.6; }
        .section-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; flex-wrap:wrap; gap:12px; }
        .section-header h2 { font-size:1.55rem; font-weight:800; display:flex; align-items:center; gap:10px; }
        .icon-dot { width:10px; height:10px; border-radius:50%; display:inline-block; box-shadow: 0 0 8px currentColor; }
        .dot-purple { background:#a855f7; }

        /* 文章链接列表 - 两列布局 */
        .article-link-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0 40px;
        }
        .article-link-list a {
            display: block; padding: 12px 16px;
            text-decoration: none; color: var(--text-primary);
            border-radius: 6px; transition: var(--transition-fast);
            font-size: 0.95rem; line-height: 1.5;
            word-break: break-word;
            border-bottom: 1px solid rgba(255,255,255,0.03);
        }
        .article-link-list a:hover {
            background: rgba(168,85,247,0.08);
            color: #fff;
            padding-left: 22px;
        }

        /* 页脚 */
        .site-footer {
            border-top:1px solid var(--glass-border);
            padding:24px 0; text-align:center; color:var(--text-muted);
            margin-top: 10px;
        }
        .site-footer .container a {
            color: var(--text-muted); text-decoration: none; font-size: 0.9rem;
            transition: color 0.25s, text-shadow 0.25s, transform 0.25s;
            position: relative; display: inline-block;
        }
        .site-footer .container a::after {
            content: ''; position: absolute; left: 0; bottom: -2px; width: 100%; height: 1px;
            background: var(--accent-1); transform: scaleX(0); transition: transform 0.25s ease;
        }
        .site-footer .container a:hover {
            color: #c084fc; text-shadow: 0 0 12px var(--glow-purple); transform: translateY(-1px);
        }
        .site-footer .container a:hover::after { transform: scaleX(1); }
        .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; margin-bottom: 12px; }
        .footer-copy { font-size: 0.85rem; opacity: 0.8; }

        /* 响应式 */
        @media (max-width:768px) {
            .main-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: rgba(10,11,26,0.96); backdrop-filter: blur(20px); flex-direction: column; padding: 16px; border-bottom: 1px solid var(--glass-border); z-index: 999; gap: 14px; }
            .main-nav.active { display: flex; }
            .mobile-menu-btn { display: block; }
            .section-block { padding: 16px; }
            .article-link-list {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .article-link-list a { font-size: 0.9rem; padding: 10px 12px; }
        }