:root{--ink:#2e254b;--line:#ded8cc;--hot:#ff7657}*{box-sizing:border-box}body{margin:0;font-family:system-ui,"Microsoft YaHei",sans-serif;color:var(--ink);background:#f5f3ed}header{position:sticky;top:0;z-index:5;height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;background:#ffffffde;backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}header a{font-weight:900;color:inherit;text-decoration:none}header nav{display:flex;gap:5px}button{font:inherit;color:inherit;border:1px solid var(--line);background:#fff;padding:10px 15px;border-radius:12px;font-weight:700}header button.active,.primary{background:linear-gradient(90deg,#ffae48,#ff6b58);border-color:transparent;color:white}main{max-width:1120px;margin:auto;padding:45px 24px 100px}.view{display:none}.view.active{display:block}.section-title p{color:#d55d3b;letter-spacing:.16em;font-size:12px;font-weight:900}.section-title h1{font-size:clamp(36px,6vw,68px);margin:10px 0 35px;letter-spacing:-.05em}.studio{display:grid;grid-template-columns:1fr 360px;gap:50px;align-items:center;max-width:880px;margin:auto}.studio>div:first-child,.panel{padding:26px;border:1px solid var(--line);border-radius:24px;background:#fff}.studio label,.auth{display:grid;gap:8px}.studio label{margin-bottom:18px;font-weight:800}input,select,textarea{width:100%;font:inherit;padding:13px;border:1px solid var(--line);border-radius:12px;background:#fff;color:inherit}.primary{display:inline-block;text-decoration:none;text-align:center;padding:13px 18px;border-radius:13px;font-weight:900}.live-phone{position:relative;aspect-ratio:9/16;border:10px solid #201c2d;border-radius:42px;overflow:hidden;background:#fff;box-shadow:0 30px 80px #1d18363b}.live-phone img{width:100%;height:100%;object-fit:cover}.phone-brand{position:absolute;top:25px;left:18px;right:18px;color:#fff;font-weight:900;text-shadow:0 2px 12px #000}.phone-name{position:absolute;left:20px;bottom:142px;color:#fff;font-size:27px;font-weight:950;text-shadow:0 2px 12px #000}.phone-greeting{position:absolute;left:18px;right:18px;bottom:86px;padding:10px 13px;border-radius:15px;background:#fffc;font-weight:700;font-size:13px}.phone-dock{position:absolute;left:12px;right:12px;bottom:16px;display:flex;gap:5px;padding:8px;background:#fffd;border-radius:99px}.phone-dock i{flex:1;text-align:center;font-style:normal;font-size:10px}.panel{margin-bottom:18px}.auth input,.auth button{margin:5px 0}.claim{display:grid;grid-template-columns:120px 1fr 1fr auto;gap:10px;align-items:end}.claim h2{grid-column:1/-1}.device-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.device-grid article{padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px}.device-grid code{display:block;word-break:break-all;font-size:12px;margin:8px 0}.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}#toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(100px);opacity:0;padding:12px 18px;background:#221d35;color:#fff;border-radius:99px;transition:.25s}#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}@media(max-width:700px){header{height:auto;padding:12px;display:block}header nav{overflow:auto;margin-top:10px}header button{white-space:nowrap;padding:8px 11px}main{padding:25px 14px 80px}.studio{grid-template-columns:1fr}.live-phone{width:min(100%,340px);margin:auto}.claim,.two{grid-template-columns:1fr}.device-grid{grid-template-columns:1fr}.section-title h1{font-size:42px}}

.device-grid article .danger-button{margin-left:8px;color:#b42318;border-color:#f3b8b3;background:#fff7f6}.device-grid article .danger-button:hover{background:#b42318;color:#fff}.device-grid article .danger-button:disabled{opacity:.55;cursor:wait}

/* V45: a visible, task-oriented guide instead of an unexplained control panel. */
.guide-flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:28px 0}
.guide-flow article{position:relative;min-height:210px;padding:26px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 18px 48px #2e254b0d;display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.guide-flow article>i{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#ffd86f,#ff795d);color:#fff;font-size:20px;font-style:normal;font-weight:900}
.guide-flow article b{display:block;margin-bottom:8px;font-size:20px}.guide-flow article p{margin:0;color:#6e667f;line-height:1.7}.guide-flow article button,.guide-flow article>span{margin-top:auto}
.guide-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.guide-note{padding:20px 24px;border-radius:20px;background:#fff6dc;border:1px solid #f1dca5;line-height:1.7}
@media(max-width:800px){.guide-flow{grid-template-columns:1fr}.guide-flow article{min-height:0}.guide-actions button{flex:1 1 140px}}
.release-center-head,.release-card>div:first-child,.release-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}.release-center-head h2{margin:3px 0}.release-center-head small{color:#d55d3b;font-weight:900;letter-spacing:.14em}.release-card{margin-top:12px;padding:16px;border:1px solid var(--line);border-radius:16px;background:#faf9f6}.release-card span{padding:4px 8px;border-radius:99px;background:#eee9ff;font-size:12px}.release-card p{color:#6e667f;line-height:1.6}.release-actions{justify-content:flex-start;flex-wrap:wrap}@media(max-width:700px){.release-card>div:first-child{align-items:flex-start;flex-direction:column}}

/* V74: merchant SKU -> NFC -> activation -> membership -> order workspace. */
.metric-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin:0 0 20px}.metric-grid article{padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff}.metric-grid small{display:block;color:#746d84}.metric-grid strong{display:block;margin-top:8px;font-size:30px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px}.commerce-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.commerce-grid article{display:flex;gap:13px;padding:12px;border:1px solid var(--line);border-radius:16px}.commerce-grid img{width:82px;height:82px;object-fit:cover;border-radius:12px}.commerce-grid b,.commerce-grid code{display:block}.commerce-grid p{margin:8px 0 0;color:#6e667f}.compact-list article,.compact-list>p{padding:12px;border-top:1px solid var(--line)}.compact-list article>span{display:block;margin:5px 0;color:#6e667f}.compact-list article button{padding:6px 9px;margin-right:5px}.phone-scene{position:absolute;inset:0}.live-phone .phone-toy{position:absolute;z-index:1;left:16%;right:16%;bottom:24%;width:68%;height:45%;object-fit:contain;filter:drop-shadow(0 12px 12px #0005)}.live-phone .phone-name,.live-phone .phone-greeting,.live-phone .phone-dock{z-index:2}.merchant-studio{align-items:start}@media(max-width:900px){.metric-grid{grid-template-columns:repeat(3,1fr)}.commerce-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.metric-grid{grid-template-columns:repeat(2,1fr)}.commerce-grid{grid-template-columns:1fr}}