@media (max-width: 767px){
  :root{--container:min(100vw - 24px, 100vw - 24px)}
  body{padding-bottom:86px}
  .topbar-inner{min-height:64px;grid-template-columns:1fr auto 1fr}
  .brand{font-size:16px;letter-spacing:.26em}
  .nav-left .nav-link,
  .nav-right .nav-link{display:none}
  .nav-left,.nav-right{gap:6px}
  .nav-right .icon-btn{width:40px;height:40px}
  .page-main,.chat-page{padding:16px 0 24px}
  .page-title,.product-title{font-size:28px}
  .page-sub{font-size:14px;line-height:1.45}
  .hero-section{padding:0 0 14px}
  .hero-banner{min-height:220px;border-radius:24px}
  .hero-kicker{font-size:11px;letter-spacing:.22em}
  .hero-title{font-size:clamp(64px,26vw,108px)}
  .mobile-filters-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:12px 0 10px}
  .mobile-filter-btn{min-height:42px;padding:0 14px;border-radius:999px;background:#111;color:#fff;font-weight:600;border:1px solid #111}
  .mobile-meta{font-size:12px}
  .catalog-filters-panel{position:fixed;left:0;right:0;bottom:0;z-index:75;background:#fff;border-radius:20px 20px 0 0;border:1px solid var(--line);border-bottom:0;padding:14px 12px calc(14px + env(safe-area-inset-bottom));max-height:78dvh;overflow:auto;transform:translateY(106%);transition:transform .25s ease,opacity .25s ease;opacity:0;pointer-events:none;box-shadow:0 -20px 40px rgba(17,17,17,.12)}
  .filters-open .catalog-filters-panel{transform:translateY(0);opacity:1;pointer-events:auto}
  .filters-open .site-shell::before{content:"";position:fixed;inset:0;z-index:70;background:rgba(17,17,17,.38)}
  .filters-panel-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px}
  .filters-panel-title{margin:0;font-size:20px;letter-spacing:-.03em}
  .filters-close{width:36px;height:36px;border:1px solid var(--line);border-radius:999px;display:grid;place-items:center}
  .toolbar{grid-template-columns:1fr 1fr;gap:10px;margin:0}
  .toolbar .field:first-child,.toolbar .field:last-child{grid-column:1 / -1}
  .quickbar{display:block;margin:12px 0 2px}
  .catalog-meta{margin-top:10px}
  .catalog-shell{padding:12px;border-radius:22px}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .product-card{border-radius:18px}
  .card-media{aspect-ratio:4/5.3}
  .card-actions{top:8px;right:8px;gap:6px;flex-direction:row}
  .card-fab{width:34px;height:34px}
  .card-body{padding:10px 10px 12px;gap:8px}
  .card-name{font-size:14px}
  .card-meta{font-size:11px}
  .price{font-size:16px}
  .old-price{font-size:11px}
  .card-bottom{grid-template-columns:1fr}
  .badges{gap:4px}
  .pill{font-size:11px;padding:6px 8px}
  .add-btn{width:100%;min-height:38px;padding:0 10px;font-size:13px}
  .contact-wrap{grid-template-columns:1fr;gap:12px}
  .contact-grid{grid-template-columns:1fr}
  .footer{padding:8px 0 24px}
  .product-layout,.profile-layout,.chat-shell{grid-template-columns:1fr}
  .gallery-card,.detail-card,.profile-card,.summary-box,.chat-shell{border-radius:22px}
  .detail-card,.gallery-card,.profile-card,.summary-box{padding:16px}
  .product-thumbs{grid-template-columns:repeat(4,1fr);gap:8px}
  .profile-card{position:static}
  .stats-grid{grid-template-columns:repeat(3,1fr)}
  .profile-product{grid-template-columns:86px minmax(0,1fr);gap:12px}
  .profile-actions{grid-column:1 / -1;justify-content:flex-start}
  .chat-shell{min-height:auto;border-radius:16px;overflow:visible;border:0}
  .chat-sidebar{position:fixed;top:0;bottom:0;left:0;width:min(84vw,312px);z-index:95;border-right:1px solid var(--line);padding:14px;border-radius:0;background:#fff;transform:translateX(-105%);transition:transform .24s ease;box-shadow:10px 0 30px rgba(17,17,17,.12)}
  .chat-menu-open .chat-sidebar{transform:translateX(0)}
  .chat-menu-open .site-shell::before{content:"";position:fixed;inset:0;background:rgba(17,17,17,.36);z-index:90}
  .chat-main{min-height:72dvh;border:1px solid var(--line);border-radius:16px}
  .chat-topbar{height:46px}
  .chat-menu-btn{display:flex}
  .chat-messages{padding:10px 10px 86px;gap:12px}
  .bubble{font-size:14px;max-width:90%;padding:10px 12px}
  .plain-text{font-size:14px}
  .chat-composer{padding:8px 10px 10px}
  .chat-box{padding:7px 7px 7px 11px;border-radius:18px;align-items:center}
  .chat-textarea{min-height:42px;padding:8px 0}
  .chat-send{min-width:40px;width:40px;height:40px;border-radius:999px}
  .mobile-dock{position:fixed;left:10px;right:10px;bottom:10px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:8px;border:1px solid rgba(17,17,17,.08);background:rgba(255,255,255,.96);backdrop-filter:blur(16px);border-radius:22px;box-shadow:0 18px 40px rgba(17,17,17,.08);z-index:60}
  .dock-link{min-height:54px;border-radius:16px;display:grid;place-items:center;gap:4px;color:var(--muted);font-size:11px;font-weight:600;text-align:center;padding:4px 6px}
  .dock-link svg{width:20px;height:20px;overflow:visible}
  .dock-link.active{background:#111;color:#fff}
  .dock-link span{line-height:1.1}
}

@media (max-width: 479px){
  :root{--container:min(100vw - 16px, 100vw - 16px)}
  .topbar-inner{gap:10px}
  .brand{letter-spacing:.2em}
  .hero-banner{min-height:180px;border-radius:20px}
  .hero-title{font-size:56px}
  .toolbar{grid-template-columns:1fr}
  .mobile-filters-bar{align-items:flex-start;flex-direction:column}
  .stats-grid{grid-template-columns:1fr 1fr}
  .profile-product{grid-template-columns:72px minmax(0,1fr)}
}