:root{color-scheme:dark;font-family:Arial,sans-serif;background:#0b0b0e;color:#f5f2ed;font-size:16px}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at top right,#241a31,transparent 65%);min-height:100vh}main{max-width:660px;margin:auto;padding:28px 20px}header{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:24px}.brand{font-size:14px;letter-spacing:2px}.brand b{display:block;color:#f4c253;font:26px Georgia;letter-spacing:3px}.test{font-size:12px;color:#e0be70;border:1px solid #80683b;border-radius:20px;padding:8px}.notice{color:#b9ad96;font-size:14px;line-height:1.5}section{border:1px solid #b69752;border-radius:22px;padding:26px;margin:24px 0;background:#131317e8}h1{font:36px Georgia;color:#f4c253;margin:0 0 22px}h2{font-size:24px;line-height:1.4;color:#f4c253}p{line-height:1.6}.center{text-align:center}.code{font-size:16px;font-family:monospace;overflow-wrap:anywhere;padding:18px;border:1px dashed #a88a4d;border-radius:14px;user-select:all}.valid{color:#6edd94}.used,.error{color:#ff8c8c}.status{font-size:23px;font-weight:bold}label{display:block;margin:18px 0}input,select,button{font:inherit;border-radius:12px;padding:16px;width:100%;margin-top:8px}input,select{border:1px solid #666;background:#202026;color:white;min-width:0}button{background:#f4c253;color:#181309;font-weight:bold;border:0;cursor:pointer;min-height:54px}button:hover{background:#ffdb83}button:disabled{opacity:.55;cursor:wait}.secondary{background:#26262d;color:#fff;border:1px solid #64606a}.secondary:hover{background:#34343f}.small{color:#b6b1bb;font-size:14px}hr{border:0;border-top:1px solid #4c4240;margin:28px 0}.history{border-bottom:1px solid #443e45;padding:14px 0}.history b{display:block}.history time{color:#c0b5ca}footer{font-size:14px;line-height:1.6;color:#99919e;text-align:center;padding:16px}a{color:#f4c253}:focus-visible{outline:3px solid white;outline-offset:3px}@media(max-width:400px){main{padding:20px 12px}section{padding:20px 16px}h1{font-size:30px}}

.shop-brand{display:flex;align-items:center;justify-content:center;width:min(220px,100%);height:110px;box-sizing:border-box;margin:24px auto 28px;padding:12px 16px;background:#fff;border-radius:12px}.shop-brand img{display:block;width:100%;height:100%;object-fit:contain}