:root{--navy:#0d2745;--blue:#155fa0;--yellow:#ffd400;--bg:#f5f7fb;--muted:#74849a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#172b4d;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial}.mobile-app{max-width:520px;margin:auto;min-height:100vh;background:#f7f9fc;padding-bottom:78px;box-shadow:0 0 35px rgba(0,0,0,.06)}.store-top{height:72px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;position:sticky;top:0;z-index:20;border-bottom:1px solid #edf1f6}.brand-mini{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);min-width:0}.brand-mini b{display:block;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px}.brand-mini small{display:block;color:#8794a7;font-size:10px}.brand-logo{width:42px;height:42px;border-radius:13px;background:var(--yellow);display:grid;place-items:center;font-weight:900}.cart-btn{position:relative;color:var(--navy);font-size:23px;text-decoration:none}.cart-btn span{position:absolute;right:-8px;top:-7px;background:#ef4444;color:#fff;border-radius:50%;min-width:18px;height:18px;font-size:10px;display:grid;place-items:center}.search-wrap{padding:10px 16px;background:#fff}.search-wrap form{display:flex;background:#f1f4f8;border-radius:13px;overflow:hidden}.search-wrap input{border:0;background:transparent;outline:0;padding:12px;width:100%}.search-wrap button{border:0;background:transparent;padding:0 14px;color:var(--blue)}.store-main{padding:14px 14px 25px}.hero-card{background:linear-gradient(135deg,#0d2745,#155fa0);border-radius:22px;padding:23px;color:#fff;min-height:190px;position:relative;overflow:hidden}.hero-card small{font-size:10px;letter-spacing:1.5px;color:#cfe4fa}.hero-card h1{font-size:28px;line-height:1.08;margin:7px 0}.hero-card p{font-size:12px;color:#dbe8f5}.hero-btn,.checkout-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--yellow);color:#172b4d;text-decoration:none;border:0;border-radius:11px;padding:11px 16px;font-weight:800;font-size:13px}.hero-art{position:absolute;right:-12px;bottom:-28px;font-size:160px;color:rgba(255,255,255,.12);transform:rotate(-12deg)}.section-head{display:flex;justify-content:space-between;align-items:end;margin:20px 2px 10px}.section-head h2{font-size:18px;margin:0}.section-head small{color:var(--muted)}.cat-scroller{display:flex;gap:9px;overflow:auto;padding-bottom:4px}.cat-chip{min-width:72px;background:#fff;border:1px solid #e9eef5;border-radius:14px;padding:10px 8px;text-align:center;text-decoration:none;color:#4e6077;font-size:11px}.cat-chip i{display:block;font-size:18px;margin-bottom:4px}.cat-chip.active{background:#eaf3fc;color:var(--blue);border-color:#cfe2f5}.product-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.product-card{background:#fff;border-radius:17px;overflow:hidden;border:1px solid #edf1f5;box-shadow:0 5px 18px rgba(30,55,80,.04)}.product-image{height:160px;background:#eef3f8;display:grid;place-items:center;text-decoration:none;position:relative}.placeholder-img{width:100%;height:100%;display:grid;place-items:center;color:#9aabbe;font-size:42px}.stock-badge{position:absolute;left:8px;top:8px;background:#fff3cd;color:#8a5b00;padding:4px 7px;border-radius:7px;font-size:9px;font-weight:700}.product-info{padding:10px}.product-info small{color:#8491a2;font-size:9px}.product-name{display:block;color:#182b45;text-decoration:none;font-weight:750;font-size:13px;margin:3px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.product-meta{display:flex;gap:5px;color:#8a96a7;font-size:9px;min-height:15px}.product-meta span{background:#f3f5f8;border-radius:5px;padding:2px 5px}.price-row{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.price-row strong{font-size:15px}.add-btn{border:0;background:var(--navy);color:#fff;width:32px;height:32px;border-radius:10px}.toast-msg{position:fixed;left:50%;transform:translateX(-50%);top:78px;z-index:50;padding:10px 14px;border-radius:10px;background:#fff;box-shadow:0 8px 30px rgba(0,0,0,.12);font-size:12px}.toast-msg.success{border-left:4px solid #16a34a}.toast-msg.error{border-left:4px solid #dc2626}.back-link{display:inline-flex;gap:6px;align-items:center;text-decoration:none;color:var(--blue);font-size:13px;margin:4px 0 12px}.detail-card{background:#fff;border-radius:20px;overflow:hidden}.detail-image{height:300px;background:#edf2f7;display:grid;place-items:center;font-size:65px;color:#9aaabd}.detail-body{padding:18px}.detail-body small{color:#8190a3}.detail-body h1{font-size:23px;margin:5px 0}.detail-price{font-size:25px;font-weight:900;margin:10px 0}.specs{border-top:1px solid #edf1f5;border-bottom:1px solid #edf1f5;margin:15px 0}.specs div{display:flex;justify-content:space-between;padding:9px 0;font-size:12px}.specs span{color:#8793a4}.stock-line{font-size:12px;color:#198754}.buy-form{display:flex;gap:9px}.qty{width:70px;border:1px solid #dbe2ea;border-radius:10px;padding:10px}.buy-btn{flex:1;border:0;border-radius:11px;background:var(--navy);color:#fff;font-weight:800}.page-head h1{font-size:24px;margin:0 0 15px}.cart-list{display:flex;flex-direction:column;gap:9px}.cart-item{background:#fff;border-radius:14px;padding:10px;display:flex;align-items:center;gap:10px}.cart-thumb{width:65px;height:65px;border-radius:11px;background:#edf2f7;display:grid;place-items:center;color:#9aaabd}.cart-desc{flex:1;min-width:0}.cart-desc b,.cart-desc small,.cart-desc strong{display:block}.cart-desc b{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cart-desc small{font-size:9px;color:#8996a6}.cart-desc strong{font-size:13px;margin-top:5px}.cart-qty{width:55px;border:1px solid #dbe2ea;border-radius:8px;padding:7px}.cart-summary,.checkout-card{background:#fff;border-radius:17px;padding:16px;margin-top:12px}.cart-summary>div,.summary-line{display:flex;justify-content:space-between;padding:5px 0}.cart-summary small{display:block;color:#8996a6;margin:6px 0 12px}.checkout-btn{width:100%;margin-top:8px}.checkout-btn.outline{background:#eef5fb;color:var(--blue)}.checkout-grid{display:block}.checkout-card h3{font-size:16px;margin:0 0 13px}.checkout-card label{display:block;font-size:11px;font-weight:700;margin:10px 0}.checkout-card input,.checkout-card textarea{display:block;width:100%;border:1px solid #dbe2ea;border-radius:10px;padding:10px;margin-top:5px;font-weight:400}.payment-option{padding:10px;background:#f7f9fc;border-radius:10px}.payment-option input{display:inline;width:auto;margin:0 7px 0 0}.disabled{opacity:.55}.summary-line{font-size:11px}.summary-line.total{font-size:16px;padding-top:12px}.empty-state{text-align:center;padding:55px 20px;color:#718198}.empty-state i{font-size:52px;color:#b2bfce}.empty-state h3{color:#253b56;font-size:18px}.success-page{text-align:center;padding:70px 20px}.success-icon{width:76px;height:76px;border-radius:50%;background:#dcfce7;color:#15803d;display:grid;place-items:center;font-size:40px;margin:auto}.success-page h1{margin-top:18px}.muted{color:#7b899b;font-size:13px}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(520px,100%);height:66px;background:#fff;border-top:1px solid #e8edf3;display:flex;justify-content:space-around;z-index:30;padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{position:relative;text-decoration:none;color:#8995a7;font-size:10px;text-align:center;padding:9px 18px}.bottom-nav a i{display:block;font-size:20px}.bottom-nav a.active{color:var(--blue)}.bottom-nav a b{position:absolute;top:4px;right:9px;background:#ef4444;color:#fff;border-radius:50%;font-size:8px;min-width:15px;height:15px;display:grid;place-items:center}@media(min-width:700px){body{background:#e7edf4}.mobile-app{margin:18px auto;border-radius:24px;overflow:hidden;min-height:calc(100vh - 36px)}.store-top{position:relative}.bottom-nav{bottom:18px;border-radius:18px;width:520px}}