:root {
            --primary-color: rgb(107, 114, 128);
            --primary-dark: #4b5563;
            --primary-light: #9ca3af;
            --accent-color: #d97706;
            --bg-color: #f3f4f6;
            --text-main: #1f2937;
            --text-muted: #6b7280;
            --card-bg: #ffffff;
            --border-color: rgba(107, 114, 128, 0.2);
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: 'PingFang SC', sans-serif; background-color: var(--bg-color); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
        ul { list-style: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        
        header { background: var(--card-bg); box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; border-bottom: 2px solid var(--primary-color); }
        .header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
        .logo { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo img { display: block; height: 45px; width: auto; max-width: 180px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 22px; font-weight: 800; line-height: 1; color: var(--text-main); white-space: nowrap; }
        .desktop-nav { display: flex; gap: 30px; }
        .desktop-nav a { font-size: 16px; font-weight: 500; padding: 10px 0; }
        .desktop-nav a:hover { color: var(--accent-color); }
        .menu-toggle { display: none; font-size: 24px; cursor: pointer; color: var(--primary-dark); }
        
        .mobile-drawer { position: fixed; top: 0; left: -300px; width: 280px; height: 100%; background: #1f2937; color: #fff; z-index: 1000; transition: left 0.3s ease; padding: 20px; display: flex; flex-direction: column; }
        .mobile-drawer.active { left: 0; }
        .drawer-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 999; display: none; opacity: 0; }
        .drawer-overlay.active { display: block; opacity: 1; }
        .drawer-close { align-self: flex-end; font-size: 28px; cursor: pointer; margin-bottom: 20px; }
        .mobile-nav a { font-size: 18px; padding: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); display: block; }
        .drawer-logo .logo span { color: #fff; }

        .tag-hero { background: #fff; padding: 60px 0; text-align: center; border-bottom: 1px solid var(--border-color); }
        .tag-hero h1 { font-size: 36px; margin-bottom: 15px; color: var(--primary-dark); }
        .tag-hero p { font-size: 16px; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

        .tag-cloud-wrapper { padding: 60px 0; min-height: 50vh; }
        .tag-info-bar { background: var(--primary-dark); color: #fff; padding: 15px 20px; border-radius: 8px; margin-bottom: 40px; display: flex; justify-content: space-between; align-items: center; }
        .tag-info-bar span { font-weight: bold; }
        
        .tag-grid { display: flex; flex-wrap: wrap; gap: 15px; justify-content: center; }
        .tag-item { display: inline-flex; align-items: center; background: #fff; border: 1px solid var(--border-color); border-radius: 30px; padding: 8px 20px; font-size: 16px; color: var(--text-main); transition: all 0.3s; box-shadow: 0 2px 5px rgba(0,0,0,0.02); }
        .tag-item:hover { background: var(--accent-color); color: #fff; border-color: var(--accent-color); transform: translateY(-3px); box-shadow: 0 5px 15px rgba(217, 119, 6, 0.2); }
        .tag-count { background: var(--bg-color); color: var(--text-muted); font-size: 12px; padding: 2px 8px; border-radius: 12px; margin-left: 10px; transition: all 0.3s; }
        .tag-item:hover .tag-count { background: rgba(255,255,255,0.2); color: #fff; }

        .cta-section { background: var(--card-bg); border-top: 1px solid var(--border-color); padding: 40px 0; text-align: center; }
        .cta-section a { display: inline-block; padding: 12px 30px; background: var(--primary-color); color: #fff; border-radius: 4px; font-size: 16px; font-weight: bold; }
        .cta-section a:hover { background: var(--primary-dark); }

        footer { background: #111827; color: #9ca3af; padding: 60px 0 20px; font-size: 14px; }
        .footer-logo .logo span { color: #fff; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
        .footer-title { color: #fff; font-size: 16px; font-weight: bold; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--accent-color); display: inline-block; }
        .footer-links li { margin-bottom: 10px; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; }
        .footer-extra-links a { margin: 0 10px; color: #6b7280; }

        @media (max-width: 992px) {
            .desktop-nav { display: none; }
            .menu-toggle { display: block; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; }
        }