:root{--red:#e2001a;--black:#111;--ink:#1a1a1a;--muted:#6b6b6b;--line:#e3e3e3;--line-strong:#111;--bg:#fff;--bg-soft:#f5f5f5;--radius:0;--header-h:52px;--bar-h:64px;--font:"Helvetica Neue", Helvetica, Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-size:15px;line-height:1.45}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;padding:0}input,select,textarea{border:0;border-bottom:1px solid var(--line-strong);background:0 0;border-radius:0;outline:none;width:100%;padding:10px 0}input:focus,select:focus,textarea:focus{border-bottom-color:var(--red)}input::placeholder,textarea::placeholder{color:#a9a9a9}h1,h2,h3{letter-spacing:-.01em;margin:0;font-weight:700}p{margin:0}.wrap{max-width:640px;margin:0 auto;padding:0 16px}.label{letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:11px}.money{font-variant-numeric:tabular-nums}.hr{border:0;border-top:1px solid var(--line);margin:0}.hr-strong{border:0;border-top:1px solid var(--line-strong);margin:0}.btn{border:1px solid var(--black);background:var(--black);color:#fff;letter-spacing:.02em;justify-content:center;align-items:center;height:48px;padding:0 20px;font-weight:600;display:inline-flex}.btn.red{background:var(--red);border-color:var(--red)}.btn.ghost{color:var(--black);background:0 0}.btn.block{width:100%}.btn:disabled{opacity:.35;cursor:default}.stepper{border:1px solid var(--black);align-items:center;height:36px;display:inline-flex}.stepper button{width:36px;height:100%;font-size:20px;font-weight:300;line-height:1}.stepper button:active{background:var(--black);color:#fff}.stepper .n{text-align:center;border-left:1px solid var(--black);border-right:1px solid var(--black);justify-content:center;align-items:center;min-width:34px;height:100%;font-weight:600;display:flex}.thumb{border:1px solid var(--line);background:var(--bg-soft);letter-spacing:.1em;color:#b5b5b5;flex:0 0 64px;justify-content:center;align-items:center;width:64px;height:64px;font-size:10px;display:flex;overflow:hidden}.thumb img{object-fit:cover;width:100%;height:100%}.note{color:var(--muted);font-size:13px}.error{color:var(--red);font-size:13px}