:root{color-scheme:light;--ink:#261a3a;--muted:#766e83;--purple:#6840d8;--purple-dark:#281657;--lime:#d9ff57;--coral:#ff725c;--line:#e4deec;--paper:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#f5f3f8;color:var(--ink);font:15px/1.65 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}.ref-topbar{height:74px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.ref-brand{display:flex;align-items:center;gap:11px;color:inherit;text-decoration:none}.ref-brand img{width:40px;height:40px}.ref-brand span{display:grid}.ref-brand strong{font-size:17px}.ref-brand small{color:var(--muted);font-size:11px}.ref-topbar nav{display:flex;align-items:center;gap:18px}.ref-topbar nav>a{color:#534a61;text-decoration:none;font-weight:700}.avatar-button{border:1px solid #dbd2e8;border-radius:12px;background:#fff;padding:7px 12px;color:var(--ink)}.ref-shell{width:min(1180px,calc(100% - 36px));margin:24px auto 60px}
.ref-hero{min-height:376px;padding:50px 54px;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(300px,.7fr);gap:44px;align-items:center;overflow:hidden;border-radius:30px;background:var(--purple-dark);box-shadow:0 24px 60px #321c671d;color:#fff;position:relative}.ref-hero:before{content:"";position:absolute;inset:0;background-image:radial-gradient(#ffffff1d 1.5px,transparent 1.5px);background-size:22px 22px;mask-image:linear-gradient(90deg,transparent 28%,#000)}.ref-hero:after{content:"";position:absolute;width:270px;height:270px;right:-120px;top:-120px;border:54px solid var(--lime);border-radius:50%;opacity:.16}.hero-copy,.reward-ticket{position:relative;z-index:1}.hero-stamp{display:inline-block;padding:6px 11px;border:1px solid #a88cf0;border-radius:6px;color:#dfd5ff;font-weight:800}.hero-copy h1{max-width:720px;margin:15px 0 16px;font-size:clamp(34px,4.4vw,56px);line-height:1.15;letter-spacing:-.045em;text-wrap:balance}.hero-copy>p{max-width:680px;margin:0;color:#d9d0ed;font-size:17px}.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:28px}.hero-actions a{padding:12px 18px;border-radius:10px;background:var(--lime);color:#281657;text-decoration:none;font-weight:900;box-shadow:5px 5px 0 #8f6ae8}.hero-actions span{color:#cfc4e5}.hero-actions b{color:var(--lime)}
.reward-ticket{padding:24px;border:2px solid #8c70d2;border-radius:20px;background:#ffffff0b;box-shadow:inset 0 0 0 6px #ffffff08}.reward-ticket>div{display:grid;grid-template-columns:1fr auto;align-items:end}.reward-ticket small,.reward-ticket span{color:#c7bcdf}.reward-ticket strong{grid-row:1/3;grid-column:2;font-size:48px;line-height:1;color:var(--lime)}.reward-ticket i{display:block;height:1px;margin:20px 0;background:repeating-linear-gradient(90deg,#9d86d4 0 8px,transparent 8px 14px)}.reward-ticket footer{display:grid;gap:4px;margin-top:22px;padding-top:18px;border-top:1px solid #ffffff1d;color:#fff}.reward-ticket footer>b{color:var(--lime)}.reward-ticket em{font-style:normal;color:#c7bcdf}.reward-ticket em b{color:#fff}
.invite-banner{margin-top:16px;padding:18px 22px;display:flex;align-items:center;gap:14px;border:1px solid #a9dfca;border-radius:16px;background:#ecfff7}.invite-check{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#138964;color:#fff;font-weight:900}.invite-banner div{display:grid}.invite-banner strong{font-size:16px}.invite-banner p{margin:0;color:#597269}.redeem-card,.login-callout{margin-top:16px;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:22px;border:1px solid var(--line);border-radius:18px;background:#fff}.redeem-card{border-left:7px solid var(--coral)}.redeem-card>div,.login-callout>div{display:grid}.redeem-card strong,.login-callout strong{font-size:18px}.redeem-card p,.login-callout span{margin:0;color:var(--muted)}.redeem-card form{display:flex;width:min(100%,470px);height:48px}.redeem-card input{min-width:0;flex:1;padding:0 15px;border:1px solid #d8cfdf;border-radius:11px 0 0 11px;outline:none;font:800 14px ui-monospace,Consolas,monospace;text-transform:uppercase}.redeem-card input:focus{border-color:var(--purple);box-shadow:0 0 0 3px #6840d817}.redeem-card button,.login-callout button{border:0;border-radius:0 11px 11px 0;padding:0 18px;background:var(--purple);color:#fff;font-weight:900;cursor:pointer;white-space:nowrap}.login-callout button{height:46px;border-radius:11px}.ref-dashboard{margin-top:16px}.ref-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.ref-stats article{padding:22px 24px;border:1px solid var(--line);background:#fff}.ref-stats article:first-child{border-radius:18px 5px 5px 18px}.ref-stats article:last-child{border-radius:5px 18px 18px 5px}.ref-stats span,.ref-stats small{display:block;color:var(--muted)}.ref-stats strong{display:block;margin:3px 0;font-size:36px;line-height:1.2}.ref-stats .featured{border-color:#8c6be5;background:var(--purple-dark);color:#fff}.ref-stats .featured span,.ref-stats .featured small{color:#d7ccea}.ref-stats .featured strong{color:var(--lime)}
.share-studio{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.65fr);gap:0;margin-top:16px;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:#fff}.poster-side{padding:28px;background:#ebe7f1}.poster-side>header{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:18px}.poster-side header span,.records-card>div>span,.rules-card header span,.panel-title{color:#7654cf;font-size:12px;font-weight:900}.poster-side h2,.records-card h2,.rules-card h2{margin:3px 0 0;font-size:24px}.poster-side header button{padding:11px 16px;border:0;border-radius:10px;background:var(--purple-dark);color:#fff;font-weight:900;cursor:pointer}.poster-frame{max-width:540px;margin:auto;position:relative;box-shadow:0 22px 45px #2e1b5140}.poster-frame canvas{display:block;width:100%;height:auto;background:#f4f1fb}.poster-frame>span{position:absolute;inset:0;display:grid;place-items:center;background:#eeeaf4;color:#6e647d;font-weight:800}.poster-frame>span[hidden]{display:none}.share-panel{padding:28px;display:flex;flex-direction:column}.share-qr{margin:14px 0 8px;padding:18px;display:grid;place-items:center;border:1px dashed #c9bbdc;border-radius:15px;background:#faf8fd}.share-qr img{width:192px;height:192px;padding:7px;border-radius:8px;background:#fff}.share-qr span{margin-top:9px;color:#776e82;font-size:12px}.share-panel label{display:block;margin-top:14px;color:#5d536b;font-weight:800}.share-panel label>div{height:48px;margin-top:6px;display:flex;align-items:center;border:1px solid #ded7e6;border-radius:10px;overflow:hidden;background:#fbfafc}.share-panel code,.share-panel input{min-width:0;flex:1;padding:0 12px;border:0;background:transparent;color:#392279;font:800 14px ui-monospace,Consolas,monospace;outline:none}.share-panel button{height:100%;padding:0 13px;border:0;border-left:1px solid #ded7e6;background:#eee8fb;color:#5e38c5;font-weight:900;cursor:pointer}.share-panel>p{margin:auto 0 0;padding-top:16px;color:#746b80;font-size:13px}
.records-card,.rules-card{margin-top:16px;padding:28px 30px;border:1px solid var(--line);border-radius:22px;background:#fff}.record-table{margin-top:18px;overflow:auto}.record-table table{width:100%;border-collapse:collapse}.record-table th,.record-table td{padding:13px 12px;border-top:1px solid #ece8f0;text-align:left;white-space:nowrap}.record-table th{background:#faf9fb;color:#6e6579;font-size:12px}.record-table td small{display:block;color:#92899c}.record-state{display:inline-block;padding:4px 9px;border-radius:999px;background:#e7f9f2;color:#087d5a;font-size:12px;font-weight:900}.record-state.released{background:#f0eef3;color:#746c7e}.rules-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:20px;border:1px solid var(--line)}.rules-grid article{min-height:150px;padding:21px}.rules-grid article+article{border-left:1px solid var(--line)}.rules-grid b{font-size:17px}.rules-grid p{margin:8px 0 0;color:#6f6679}.rules-grid strong{color:#6540ca}.ref-toast{position:fixed;left:50%;bottom:30px;z-index:200;max-width:min(90vw,620px);transform:translate(-50%,20px);padding:11px 18px;border-radius:11px;background:#241934;color:#fff;text-align:center;opacity:0;pointer-events:none;transition:.2s}.ref-toast.show{opacity:1;transform:translate(-50%,0)}.ref-toast.error{background:#b83f55}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #aa8ff0;outline-offset:2px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.ref-toast{transition:none}}
@media(max-width:900px){.ref-hero{grid-template-columns:1fr}.reward-ticket{display:grid;grid-template-columns:1fr 1px 1fr;gap:18px}.reward-ticket i{width:1px;height:auto;margin:0;background:repeating-linear-gradient(#9d86d4 0 8px,transparent 8px 14px)}.reward-ticket footer{grid-column:1/-1}.share-studio{grid-template-columns:1fr}.share-panel{border-top:1px solid var(--line)}}
@media(max-width:680px){.ref-topbar{height:auto;padding:11px 14px}.ref-topbar nav>a{display:none}.ref-shell{width:calc(100% - 20px);margin-top:10px}.ref-hero{padding:30px 22px;border-radius:20px}.hero-copy h1{font-size:30px;line-height:1.2}.hero-copy>p{font-size:15px}.reward-ticket{grid-template-columns:1fr}.reward-ticket i{width:auto;height:1px}.reward-ticket footer{grid-column:auto}.redeem-card,.login-callout{align-items:stretch;flex-direction:column}.redeem-card form{width:100%;height:auto;flex-direction:column;gap:8px}.redeem-card input,.redeem-card button{height:46px;border-radius:10px}.ref-stats{grid-template-columns:1fr}.ref-stats article,.ref-stats article:first-child,.ref-stats article:last-child{border-radius:14px}.poster-side,.share-panel,.records-card,.rules-card{padding:20px}.poster-side>header{align-items:flex-start;flex-direction:column}.poster-side header button{width:100%}.rules-grid{grid-template-columns:1fr}.rules-grid article+article{border-left:0;border-top:1px solid var(--line)}}

.effective-card{margin-top:16px;padding:22px 26px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;border:2px solid #321c67;border-radius:20px;background:#fff;box-shadow:7px 7px 0 #d9ff57}.effective-number{padding:8px 12px;border-radius:8px;background:#281657;color:#d9ff57;font-weight:900;white-space:nowrap}.effective-card h2{margin:0 0 5px;font-size:22px;line-height:1.35}.effective-card p{margin:0;color:#665d72}.effective-card p strong{color:#5430b8}.effective-card>b{padding-left:20px;border-left:1px solid #ded6e8;color:#ff5e4a;font-size:16px;line-height:1.5;white-space:nowrap}.valid-use{color:#087d5a}.hero-copy>p{font-weight:600}
@media(max-width:680px){.effective-card{grid-template-columns:1fr;gap:12px;padding:20px;box-shadow:4px 4px 0 #d9ff57}.effective-number{width:max-content}.effective-card>b{padding:12px 0 0;border-left:0;border-top:1px solid #ded6e8}.effective-card h2{font-size:19px}}

/* Approved layout A. Keep the existing campaign and reward logic intact. */
:root{--muted:#6b6279}
[hidden]{display:none!important}
button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.65}
::selection{background:#e4d7ff;color:#281657}
.ref-hero h1{letter-spacing:-.04em}
.promotion-heading{margin:26px 0 16px;scroll-margin-top:96px}
.promotion-heading h2{margin:0;font-size:23px}.promotion-heading p{margin:4px 0 0;color:var(--muted);font-size:14px}
.ref-dashboard{margin-top:0}.login-callout{margin-top:0}
#ref-loading{color:var(--muted)}#ref-load-error{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px;background:#fff1f3;border:1px solid #da8396;border-radius:12px;color:#8a2940;margin-bottom:16px}
#ref-retry{padding:8px 16px;background:#fff;border:1px solid #b85b70;border-radius:7px;color:#8a2940}
.share-credentials{display:grid;grid-template-columns:minmax(0,1fr) 238px;background:#fff;border:1px solid #bcabe5;border-radius:14px;overflow:hidden;scroll-margin-top:96px}
.credentials-main{padding:25px 32px}.credentials-main h2{margin:0;font-size:24px}.credentials-main>p{color:var(--muted);margin:5px 0 0}
.share-link-row{display:flex;min-height:58px;margin-top:20px;border:1px solid #cabce6;border-radius:7px;overflow:hidden;background:#faf8fe}
.share-link-row input{flex:1;min-width:0;width:100%;border:0;background:transparent;padding:0 16px;font-size:18px;color:var(--ink);outline-offset:-3px}
.share-link-row button{border:0;padding:14px 24px;background:var(--purple);color:#fff;font-size:17px;font-weight:700;white-space:nowrap}
.share-link-row button:hover{background:#5630be}.share-code-row{display:flex;align-items:center;gap:18px;margin-top:23px;flex-wrap:wrap}.share-code-row>span{font-size:15px}.share-code-row>strong{font-size:27px;line-height:1.4;letter-spacing:3px;color:#432779;overflow-wrap:anywhere}.share-code-row>small{font-size:13px;color:var(--muted)}
.share-code-row button,.credentials-qr button{min-height:42px;border:1px solid #cdbfe7;border-radius:7px;padding:9px 15px;background:#fff;color:var(--purple);font-weight:600;white-space:nowrap}.share-code-row button:hover,.credentials-qr button:hover{background:#f2edf9}
.credentials-main>.share-tip{margin-top:19px;font-size:13px}
.credentials-qr{border-left:1px solid var(--line);background:#faf8fd;padding:22px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.credentials-qr img{display:block;background:#fff;object-fit:contain}.credentials-qr>strong{font-size:15px;margin-top:4px}.credentials-qr>span{font-size:12px;color:var(--muted);text-align:center}.credentials-qr button{margin-top:9px;width:100%}
.records-card{margin-top:22px;padding:21px 28px 6px;border-radius:12px}.records-card h2{margin:0;font-size:19px}
.ref-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px;margin:16px 0 20px}.ref-stats article,.ref-stats article.featured{padding:0;border:0;background:transparent;color:var(--ink)}.ref-stats span{font-size:13px;color:var(--muted);margin-bottom:4px}.ref-stats strong{display:inline;font-size:28px;line-height:1.2;font-variant-numeric:tabular-nums}.ref-stats small{display:inline;margin-left:7px;font-size:13px;color:var(--muted)}.ref-stats .featured span,.ref-stats .featured small{color:var(--muted)}.ref-stats .featured strong{color:var(--purple)}
.record-table{margin-top:0}.record-table th{font-size:13px;background:#f5f2fa}.record-table td{font-size:13px}.record-table td small{color:var(--muted)}
.promotion-steps{margin-top:24px}.promotion-steps h2{font-size:17px;margin:0}.promotion-steps ol{list-style:none;counter-reset:steps;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;padding:0;margin:14px 0 20px}.promotion-steps li{counter-increment:steps;position:relative;padding-left:42px}.promotion-steps li:before{content:counter(steps);position:absolute;left:0;top:4px;width:30px;height:30px;border-radius:50%;background:#e9e1f7;display:grid;place-items:center;color:var(--purple);font-weight:700;font-size:14px}.promotion-steps li b{font-size:15px;font-weight:500}.promotion-steps li span{display:block;font-size:13px;color:var(--muted);margin-top:3px}
.rules-card{margin-top:0;padding:0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent}.rules-card summary,.redeem-details summary{padding:13px 0;color:var(--purple);font-size:14px;font-weight:600;cursor:pointer;min-height:44px}.rules-card .effective-note{color:var(--muted);font-size:14px;margin:5px 0}.rules-grid{margin:10px 0 16px;background:#fff;border-radius:12px;overflow:hidden}.rules-grid article{padding:20px;min-height:0}.rules-grid p{font-size:14px}.rules-grid b{font-size:16px}.redeem-details{border-top:1px solid var(--line)}.redeem-details summary{text-align:right}.redeem-card{margin-top:0;border:1px solid var(--line);border-radius:12px}.redeem-card p{font-size:14px}.redeem-card form{flex-shrink:0;width:min(46%,470px)}#current-referrer{margin-top:8px;color:#5430b8;overflow-wrap:anywhere}
@media(max-width:1240px){.credentials-main{padding:24px}.share-link-row input{font-size:16px;padding:0 12px}.share-link-row button{padding:14px 18px}.share-code-row{gap:14px}.share-code-row>small{display:none}}
@media(max-width:900px){.share-credentials{grid-template-columns:minmax(0,1fr) 194px}.credentials-qr{padding:18px}.share-link-row{flex-wrap:wrap}.share-link-row input{min-height:52px;flex-basis:100%}.share-link-row button{width:100%}.ref-stats{gap:18px}.promotion-steps ol{gap:18px}.redeem-card{align-items:stretch;flex-direction:column}.redeem-card form{width:100%}}
@media(max-width:680px){.share-credentials{grid-template-columns:1fr}.credentials-main{padding:22px 18px}.credentials-main h2{font-size:22px}.credentials-main>p{font-size:14px}.share-code-row{gap:12px}.share-code-row>span{flex-basis:100%}.share-code-row>strong{font-size:25px}.credentials-qr{border-left:0;border-top:1px solid var(--line)}.credentials-qr button{max-width:240px}.records-card{padding:20px 16px 6px}.ref-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.ref-stats strong{font-size:25px;overflow-wrap:anywhere}.ref-stats small{margin-left:3px}.promotion-steps ol{grid-template-columns:1fr;gap:18px}.rules-grid{grid-template-columns:1fr}.redeem-details summary{text-align:left}.promotion-heading{scroll-margin-top:80px}.ref-load-error{align-items:flex-start}.ref-stats span{font-size:12px}}