:root{--accent:#667eea;--on:#fff;--black:#111;--border:#e5e5e5;--gray:#767676;--r:6px}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;background:#f6f6f6;color:#222;min-height:100vh;display:flex;flex-direction:column;font-size:14px}
a{text-decoration:none;color:inherit}img{max-width:100%;display:block}button{font-family:inherit}

.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:500}
.header-main{max-width:1280px;margin:0 auto;padding:0 20px;height:60px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px}
.header-left,.header-center,.header-right{display:flex;align-items:center}
.header-center{justify-content:center;width:100%}
.header-right{justify-content:flex-end}
.header-logo{font-size:22px;font-weight:800;color:var(--black);letter-spacing:1.5px;white-space:nowrap}
.header-logo img,.drawer-logo img{height:36px;width:auto;object-fit:contain;display:block}
.logo-sm{display:none}
.header-search{display:flex;border:1.5px solid var(--border);border-radius:10px;overflow:hidden;width:100%;max-width:480px}
.header-search:focus-within{border-color:var(--accent)}
.header-search input{flex:1;border:none;outline:none;padding:9px 16px;font-size:14px;background:transparent;min-width:0}
.header-search button{background:var(--accent);color:var(--on);border:none;padding:0 18px;cursor:pointer}
.cart-icon-btn{position:relative;cursor:pointer;padding:8px;border-radius:8px;border:none;background:none}
.cart-icon-btn:hover{background:#f5f5f5}
.cart-icon-btn svg{width:24px;height:24px;display:block;stroke:#333}
.cart-bubble{position:absolute;top:-4px;right:-4px;background:var(--accent);color:var(--on);border-radius:50%;min-width:18px;height:18px;font-size:10px;font-weight:700;display:none;align-items:center;justify-content:center}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:6px;flex-direction:column;gap:5px}
.hamburger span{display:block;width:22px;height:2px;background:var(--black);border-radius:2px}

.nav-bar{background:var(--accent)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 20px;display:flex;align-items:stretch;justify-content:center}
.nav-link{display:flex;align-items:center;color:var(--on);padding:11px 15px;font-size:13px;font-weight:500}

.drawer-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:700}
.drawer-overlay.open{display:block}
.drawer{position:fixed;top:0;left:-310px;width:290px;height:100%;background:#fff;z-index:800;transition:left .3s;display:flex;flex-direction:column;overflow-y:auto}
.drawer.open{left:0}
.drawer-head{padding:14px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.drawer-logo{font-size:18px;font-weight:800}
.drawer-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666}
.drawer-search{padding:12px 14px;border-bottom:1px solid var(--border)}
.drawer-search form{display:flex;border:1.5px solid var(--border);border-radius:10px;overflow:hidden}
.drawer-search input{flex:1;border:none;outline:none;padding:8px 12px;font-size:13px}
.drawer-search button{background:var(--accent);color:var(--on);border:none;padding:0 12px;cursor:pointer}
.drawer-link{display:flex;padding:12px 18px;font-size:14px;font-weight:500;border-bottom:1px solid #f5f5f5}

.body-wrap{max-width:1280px;margin:0 auto;padding:28px 16px;flex:1;width:100%}
.section-title{font-size:18px;font-weight:700;color:var(--black);margin-bottom:14px;text-align:center}
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;align-items:stretch}
.product-card{background:#fff;border:1px solid var(--border);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;color:inherit}
.product-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.1)}
.pc-img{position:relative;background:#f9f9f9;overflow:hidden}
.pc-img img,.no-img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.no-img{display:flex;align-items:center;justify-content:center;font-size:42px;color:#ddd}
.pc-body{padding:10px 12px 12px;display:flex;flex-direction:column;flex:1}
.pc-name{font-size:13px;font-weight:500;line-height:1.4;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-prices{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.pc-orig{font-size:12px;color:var(--gray);text-decoration:line-through}
.pc-sale{font-size:16px;font-weight:700;color:var(--accent)}
.btn-add-cart{width:100%;background:var(--accent);color:var(--on);border:none;padding:9px 6px;border-radius:4px;font-size:13px;font-weight:600;cursor:pointer;margin-top:auto}
.empty-state{text-align:center;padding:60px 16px;color:#999;font-size:15px;grid-column:1/-1}

.site-footer{background:var(--accent);color:var(--on);padding:24px 20px;margin-top:auto;text-align:center}
.footer-copy{font-size:12px;opacity:.85}
.footer-copy a{color:var(--on);font-weight:600}

.cart-drawer{position:fixed;top:0;right:-380px;width:360px;height:100%;background:#fff;z-index:900;transition:right .3s;display:flex;flex-direction:column;box-shadow:-4px 0 20px rgba(0,0,0,.12)}
.cart-drawer.open{right:0}
.cart-head{padding:16px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.cart-head h3{font-size:16px;font-weight:700}
.cart-close-btn{background:none;border:none;font-size:24px;cursor:pointer;color:#666}
.cart-empty-msg{text-align:center;padding:60px 20px;color:#999}

#install-banner{display:none;position:fixed;bottom:16px;left:50%;transform:translateX(-50%);background:#fff;border:1px solid #ddd;border-radius:12px;padding:12px 16px;box-shadow:0 4px 24px rgba(0,0,0,.13);align-items:center;gap:12px;z-index:400;max-width:340px;width:calc(100% - 32px)}
#install-banner.show{display:flex}
#install-banner .i-icon{width:40px;height:40px;border-radius:10px;overflow:hidden;flex-shrink:0;background:#f3f4f6}
#install-banner .i-icon img{width:100%;height:100%;object-fit:contain;display:block}
#install-banner .i-text{flex:1;min-width:0}
#install-banner .i-text strong{display:block;font-size:13px;color:var(--black)}
#install-banner .i-text span{font-size:11px;color:#888}
#install-banner .i-install{background:var(--accent);color:var(--on);border:none;padding:7px 13px;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer}
#install-banner .i-close{background:none;border:none;color:#aaa;font-size:20px;cursor:pointer;line-height:1}

@media(max-width:900px){.products-grid{grid-template-columns:repeat(2,1fr);gap:12px}}
@media(max-width:768px){
  .header-main{padding:0 12px;gap:10px;height:54px}
  .logo-lg{display:none}.logo-sm{display:block;font-size:18px}
  .header-search{display:none}.hamburger{display:flex}.nav-bar{display:none}
  .body-wrap{padding:16px 12px}
}