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a.hot-link:hover{background:var(--accent-50)}.mobile-menu-btn{display:none;padding:10px;background:var(--bg-tertiary);border:none;border-radius:var(--radius-md);cursor:pointer;font-size:18px;color:var(--text-secondary);transition:var(--transition-fast)}.mobile-menu-btn:hover{background:var(--bg-secondary);color:var(--primary-600)}@media (max-width:900px){.header-search,.main-nav{display:none}.mobile-menu-btn{display:flex;align-items:center;justify-content:center}.main-nav.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:var(--bg-primary);border-bottom:1px solid var(--border-color);padding:15px;box-shadow:var(--shadow-lg);gap:5px}.main-nav.open a{width:100%;padding:12px 15px}}.main-wrapper{padding:25px 0}.main-content{display:flex;gap:25px}.content-area{flex:1 1;min-width:0}.category-filter{display:flex;flex-wrap:wrap;gap:8px;padding:18px 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