*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:#f6f7f9;color:#1a1a1a;line-height:1.5}.container{max-width:640px;margin:0 auto;padding:16px}.page{padding-bottom:8px}.page h1{font-size:22px}.back-link{display:inline-flex;align-items:center;background:none;border:none;color:#1a56db;font-size:14px;font-weight:600;cursor:pointer;padding:8px 0;margin-bottom:4px}.back-link:hover{text-decoration:underline}.section{background:#fff;border-radius:14px;padding:18px;margin:14px 0;box-shadow:0 1px 4px rgba(0,0,0,.07)}.section h2{font-size:16px;margin:0 0 10px;display:flex;align-items:center;gap:8px}.sec-icon{font-size:18px}.form-compact{display:flex;flex-direction:column;gap:10px}.form-compact input,.form-compact textarea{margin:0}.product-list{display:flex;flex-direction:column;gap:10px;margin-top:10px}.product-card{display:flex;align-items:center;gap:12px;border:1.5px solid #e5e7eb;border-radius:12px;padding:12px 14px;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s;background:#fff;-webkit-user-select:none;-moz-user-select:none;user-select:none}.product-card:hover{border-color:#9db4e8}.product-card.selected{border-color:#1a56db;background:#f0f5ff;box-shadow:0 2px 8px rgba(26,86,219,.12)}.product-card .check{flex:0 0 26px;width:26px;height:26px;border-radius:50%;border:2px solid #cbd5e1;display:inline-flex;align-items:center;justify-content:center;font-size:15px;color:#fff;transition:all .15s}.product-card .check.on{background:#1a56db;border-color:#1a56db}.product-card-set{border-width:2px;border-style:dashed;background:#fffdf5}.product-card-set.selected{border-style:solid;background:#fff8e6}.product-info{flex:1 1;min-width:0}.product-name{font-weight:600;font-size:15px}.product-card.selected .product-name{color:#1a56db}.product-price{font-size:14px;color:#555;margin-top:2px}.confirm-grid{display:flex;flex-direction:column}.confirm-grid .section{margin:14px 0}.confirm-main,.confirm-side{display:flex;flex-direction:column;gap:14px}.confirm-main .section,.confirm-side .section{margin:0}@media (min-width:900px){.confirm-grid{display:grid;grid-template-columns:1fr 380px;grid-gap:20px;gap:20px;align-items:start}.confirm-grid .section{margin:0}.payment-section{grid-column:1/-1}.pay-grid{display:grid;grid-template-columns:1fr 280px;grid-gap:20px;gap:20px;align-items:start}.summary-final{grid-column:1/-1;max-width:520px;width:100%;margin:0 auto!important}}.sticky-bar{position:fixed;bottom:0;left:0;right:0;z-index:50;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:12px;gap:12px;align-items:center;background:#fff;border-top:1px solid #e5e7eb;box-shadow:0 -4px 16px rgba(0,0,0,.08);padding:12px 16px calc(12px + env(safe-area-inset-bottom, 0px))}.sticky-bar .btn{width:auto;margin:0;padding:13px 24px;white-space:nowrap}.sticky-total{min-width:0}.sticky-count{font-size:12px;color:#555;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sticky-amount{font-size:20px;font-weight:800;color:#1a56db;white-space:nowrap}@media (max-width:899px){.page-has-sticky{padding-bottom:96px}}.summary-card{display:none}@media (min-width:900px){.container{max-width:1080px}.page h1{font-size:24px}.layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:20px;gap:20px;align-items:start}.side-col{position:-webkit-sticky;position:sticky;top:76px}.side-col .section{margin-top:14px}.sticky-bar{display:none}.summary-card{display:block}.summary-card .summary-row{display:flex;align-items:center;gap:12px}.summary-card .sticky-total{flex:1 1}.summary-card .btn-sticky{width:100%;margin-top:12px}.summary-card .summary-row{flex-wrap:wrap}.product-list{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.product-card-set{grid-column:1/-1}.form-compact{display:grid;grid-template-columns:1fr 1fr;grid-gap:10px;gap:10px}.form-compact textarea{grid-column:1/-1}.radio-col{display:flex;flex-direction:column;gap:10px;margin-top:8px}}@media (max-width:899px){.radio-col{display:flex;gap:12px;margin-top:8px}.radio-col .radio-card{flex:1 1}}.topbar{background:#1a56db;color:#fff;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;position:-webkit-sticky;position:sticky;top:0;z-index:10}.topbar .brand{font-weight:700;font-size:16px}.topbar button{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:8px;padding:6px 12px;cursor:pointer}.card{background:#fff;border-radius:12px;padding:20px;margin:16px 0;box-shadow:0 1px 3px rgba(0,0,0,.08)}h1{font-size:20px;margin:0 0 12px}h2{font-size:17px;margin:16px 0 8px}label{display:block;font-weight:600;margin:12px 0 4px;font-size:14px}input[type=email],input[type=tel],input[type=text],textarea{width:100%;padding:10px 12px;border:1px solid #ccc;border-radius:8px;font-size:16px}textarea{min-height:72px;resize:vertical}.notes-input{width:100%;box-sizing:border-box}.btn{display:block;width:100%;padding:13px;margin-top:16px;background:#1a56db;color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:700;cursor:pointer}.btn:disabled{background:#9db4e8;cursor:not-allowed}.btn-secondary{background:#fff;color:#1a56db;border:1px solid #1a56db}.error{background:#fde8e8;color:#b00;border:1px solid #f5c2c2;border-radius:8px}.error,.success{padding:10px 12px;margin-top:12px;font-size:14px}.success{background:#e6f7ec;color:#0a6b2d;border:1px solid #bfe6cc;border-radius:8px}table.products{width:100%;border-collapse:collapse;margin-top:8px}table.products td,table.products th{padding:10px 8px;border-bottom:1px solid #eee;text-align:left;vertical-align:middle;font-size:14px}table.products th{background:#f0f4ff;font-size:13px}.qty{display:flex;align-items:center;gap:6px}.qty button{width:30px;height:30px;border:1px solid #ccc;border-radius:8px;background:#fff;font-size:16px;cursor:pointer}.qty span{min-width:26px;text-align:center;font-weight:700}input[type=checkbox]{width:20px;height:20px;accent-color:#1a56db}.radio-row{display:flex;gap:12px;margin-top:8px}.radio-card{flex:1 1;border:1px solid #ccc;border-radius:10px;padding:12px;cursor:pointer;font-size:14px}.radio-card.selected{border-color:#1a56db;background:#f0f4ff}.kv{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed #eee;font-size:14px}.kv .k{color:#555}.kv .v{font-weight:600;text-align:right}.total-row{display:flex;justify-content:space-between;padding:10px 0;font-size:17px;font-weight:800}.qr-box{text-align:center;margin:12px 0}.qr-box img{max-width:240px;width:100%;border:1px solid #ddd;border-radius:8px}.note{font-size:13px;color:#555;margin-top:8px}.center{text-align:center}.big-code{font-size:24px;font-weight:800;letter-spacing:1px;color:#1a56db}.thanks{font-size:15px;color:#0a6b2d;background:#e6f7ec;border-radius:10px;padding:12px 16px;margin:12px 0;line-height:1.6}.gift-banner{background:linear-gradient(135deg,#fff8e6,#ffefd6);border:1.5px dashed #e8a020;border-radius:12px;padding:12px 14px;margin-top:12px;font-size:14px;color:#8a5a00;line-height:1.5}.ship-note{background:#f0f5ff;border-radius:8px;padding:8px 12px;margin:10px 0;font-size:13px;color:#1a56db}.ship-note.free{background:#e6f7ec;color:#0a6b2d}@media print{.btn,.no-print,.topbar{display:none!important}body{background:#fff}.card{box-shadow:none;border:1px solid #ddd}}