:root{--checkout-bg-0: #fff8df;--checkout-bg-1: #ffefb9;--checkout-bg-2: #ddf2ff;--checkout-ink: #2d2417;--checkout-muted: #6f634d;--checkout-line: rgba(84, 67, 30, .18);--checkout-card: rgba(255, 249, 228, .9)}*{box-sizing:border-box}html,body{min-height:100%}body.checkout-page{margin:0;font-family:Sora,Noto Sans TC,sans-serif;color:var(--checkout-ink);background:radial-gradient(circle at 15% 12%,rgba(255,204,62,.34),transparent 28%),radial-gradient(circle at 86% 18%,rgba(136,205,245,.28),transparent 30%),linear-gradient(160deg,var(--checkout-bg-0),var(--checkout-bg-1),var(--checkout-bg-2))}.checkout-nav{position:fixed;top:20px;left:24px;right:24px;z-index:10;display:flex;align-items:center;gap:10px}.checkout-nav .nav-back{text-decoration:none;color:#3b2d18;border:1px solid rgba(84,67,30,.22);background:#fff8ddb8;padding:9px 16px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.04em;transition:transform .18s ease}.checkout-nav .nav-back:hover{transform:translateY(-2px)}.checkout-shell{min-height:100vh;display:grid;place-items:center;padding:28px 18px}.checkout-card{width:min(760px,100%);border:1px solid var(--checkout-line);border-radius:28px;background:var(--checkout-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:0 22px 52px #6d571f2e;padding:clamp(20px,4vw,36px)}.checkout-kicker{font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#7a5800;margin-bottom:12px}.checkout-card h1{margin:0 0 8px;font-size:clamp(30px,5vw,52px);line-height:1.02;letter-spacing:-.03em}.checkout-card>p{margin:0 0 20px;color:var(--checkout-muted);line-height:1.6}.checkout-summary{display:grid;gap:10px;padding:18px;border-radius:20px;border:1px solid var(--checkout-line);background:#ffffff75;margin-bottom:18px}.checkout-summary div{display:flex;align-items:center;justify-content:space-between;gap:16px}.checkout-summary span{color:var(--checkout-muted);font-size:13px}.checkout-summary strong{font-size:16px}.checkout-summary .plan-desc-row{display:block;padding-top:4px}.checkout-summary .plan-desc-row span{display:block;margin-bottom:6px}.summary-plan-desc{list-style:none;margin:0;padding:0;display:grid;gap:4px}.summary-plan-desc li{color:#5b4a2e;font-size:13px;line-height:1.4}.summary-plan-desc li:before{content:"● ";color:#ffc93b}.summary-plan-desc-toggle{margin-top:6px;border:0;background:transparent;color:#875d00;font-size:12px;font-weight:700;letter-spacing:.01em;cursor:pointer;padding:0;text-align:left}.summary-plan-desc-toggle:hover{text-decoration:underline}.summary-plan-desc-toggle[hidden]{display:none}.checkout-summary .subtotal-row{margin-top:6px;padding:12px 14px;border-radius:14px;border:1px solid rgba(150,104,9,.38);background:linear-gradient(145deg,#fff0b1d6,#ffdd7de6);box-shadow:0 8px 14px #97690f24}.checkout-summary .subtotal-row span{color:#6d4900;font-size:12px;letter-spacing:.02em;text-transform:uppercase}.checkout-summary .subtotal-row strong{color:#2f1f00;font-size:22px;line-height:1}.paint-selector{margin-bottom:16px;padding:16px;border-radius:18px;border:1px solid var(--checkout-line);background:#ffffff75}.paint-selector h2{margin:0;font-size:18px;letter-spacing:-.01em}.paint-selector__desc{margin:6px 0 12px;color:var(--checkout-muted);font-size:13px}.paint-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.paint-tile{position:relative;border:1px solid rgba(122,88,0,.26);border-radius:10px;background:#fff8e1e0;color:#4f3f22;padding:8px;text-align:left;font-size:12px;font-weight:700;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}.paint-thumb{position:relative;width:100%;aspect-ratio:1 / 1;border-radius:8px;overflow:hidden;border:1px solid rgba(114,78,0,.24);background:#ffffffa8;margin-bottom:6px}.paint-zoom-btn{position:absolute;top:6px;right:6px;width:28px;height:28px;border-radius:50%;border:none;background:#ffffffd9;color:#333;font-size:14px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:.7;transition:opacity .15s,transform .15s;z-index:2}.paint-zoom-btn:hover{opacity:1;transform:scale(1.1)}.paint-thumb img{width:100%;height:100%;object-fit:cover;display:block;filter:hue-rotate(var(--paint-hue, 0deg)) saturate(1.04)}.paint-tile__label{display:block;font-size:11px;font-weight:700;letter-spacing:.01em;color:#544126}.paint-qty-container{margin-top:6px;display:flex;align-items:center;justify-content:space-between;gap:8px}.paint-qty-label{font-size:11px;color:#6b5735;font-weight:700}.paint-qty-controls{display:inline-flex;align-items:center;gap:6px}.paint-qty-btn{width:24px;height:24px;border:1px solid rgba(122,88,0,.34);border-radius:6px;background:#ffffffe0;color:#4f3f22;font-size:15px;font-weight:700;line-height:1;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;padding:0}.paint-qty-btn:hover{background:#fff8df}.paint-qty-value{min-width:24px;text-align:center;font-size:12px;font-weight:700;color:#3f3118}.paint-tile:hover{transform:translateY(-1px)}.paint-tile.is-selected{border-color:#30752785;background:linear-gradient(145deg,#dcf8c4,#c6f09c,#b5e589);color:#1f4a16;box-shadow:0 6px 10px #3d882b2e}.paint-selection-note{margin:10px 0 0;font-size:12px;color:#5a4d35;min-height:18px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:16px}.form-grid label,.card-label{display:grid;gap:8px;font-size:13px;font-weight:600;color:#55472d}.form-grid input{width:100%;border:1px solid var(--checkout-line);border-radius:14px;padding:12px 14px;font:inherit;background:#ffffffb8;color:var(--checkout-ink)}.address-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-bottom:16px}.address-grid label{display:grid;gap:8px;font-size:13px;font-weight:600;color:#55472d}.address-grid input,.address-grid select{width:100%;border:1px solid var(--checkout-line);border-radius:14px;padding:12px 14px;font:inherit;background:#ffffffb8;color:var(--checkout-ink);-moz-appearance:none;appearance:none;-webkit-appearance:none}.address-grid select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2355472d' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px;cursor:pointer}.address-grid input.field-invalid,.address-grid select.field-invalid{border-color:#c73d32;box-shadow:0 0 0 3px #c73d3224}.address-grid .full-span{grid-column:1 / -1}.card-element{min-height:52px;border:1px solid var(--checkout-line);border-radius:16px;padding:14px 14px 10px;background:#ffffffb8}.trust-inline{margin-top:14px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.trust-lock{font-size:15px;line-height:1}.trust-text{font-size:12px;color:#2f4f79;font-weight:700;letter-spacing:.01em}.stripe-badge{font-size:11px;font-weight:700;color:#1f3e69;border:1px solid rgba(39,81,132,.28);background:#e3efffb8;border-radius:999px;padding:4px 10px}.compliance-line{margin:8px 0 0;font-size:12px;color:#395b81;line-height:1.45}.checkout-faq{margin-top:8px;border-radius:12px;border:1px solid rgba(39,81,132,.24);background:#ecf5ff85;padding:8px 10px}.checkout-faq summary{cursor:pointer;font-size:12px;font-weight:700;color:#244a79}.faq-item{margin-top:8px;font-size:12px;color:#36597f;line-height:1.4}.checkout-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.primary-btn,.secondary-btn{border:1px solid rgba(99,69,5,.28);border-radius:999px;padding:12px 18px;font:inherit;font-weight:700;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,opacity .18s ease}.primary-btn{color:#2c1b00;background:linear-gradient(145deg,#fff1ae,#ffd257 44%,#ffb21f);box-shadow:0 10px 18px #ad750942}.secondary-btn{color:#47361f;background:#fff8e1e6}.secondary-btn.pay-ready{color:#17390f;border-color:#266d2666;background:linear-gradient(145deg,#d7f6b9,#b9ec7e 52%,#9ed65f);box-shadow:0 10px 18px #357a2b3d}.primary-btn:hover,.secondary-btn:hover{transform:translateY(-1px)}.primary-btn:disabled,.secondary-btn:disabled{opacity:.55;cursor:not-allowed;transform:none}.checkout-note{min-height:22px;margin:16px 0 0;color:#4c6b3a;font-size:13px}.checkout-error{min-height:22px;margin:8px 0 0;color:#9b2f25;font-size:13px}.checkout-error .cutoff-notice{margin:12px 0 0;padding:10px 14px;background:#f0f7e8;border-left:3px solid #5a8a3a;border-radius:4px;color:#3a5a25;font-size:13px;line-height:1.5}@media (max-width: 720px){.form-grid,.address-grid{grid-template-columns:1fr}.paint-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.paint-qty-btn{width:20px;height:20px;font-size:13px;border-radius:4px}.paint-qty-controls{gap:4px}.paint-qty-value{min-width:20px;font-size:11px}}.paint-lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:flex;align-items:center;justify-content:center}.paint-lightbox[hidden]{display:none}.paint-lightbox__backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#000000b8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.paint-lightbox__body{position:relative;max-width:90vw;max-height:85vh;border-radius:14px;overflow:hidden;box-shadow:0 20px 60px #0006;display:flex;align-items:center}.paint-lightbox__img{display:block;max-width:80vw;max-height:85vh;object-fit:contain;border-radius:14px}.paint-lightbox__arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:#0000008c;color:#fff;font-size:28px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:2;transition:background .15s}.paint-lightbox__arrow:hover{background:#000c}.paint-lightbox__prev{left:10px}.paint-lightbox__next{right:10px}.paint-lightbox__close{position:absolute;top:10px;right:10px;width:36px;height:36px;border-radius:50%;border:none;background:#0000008c;color:#fff;font-size:22px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}