/* OCNAI ChatGPT 代充 · 沿用原 nftft.com 的风格：白底、#4a90d9 蓝、浅蓝渐变 Hero、细边框卡片（结构参考 huolalaopenai.com）
   系统字体，不依赖 Google Fonts；移动端优先。 */
:root{
  --bg:#FFFFFF; --bg-2:#F8F9FA; --panel:#FFFFFF; --panel-2:#F8FAFF;
  --ink:#1A1A2E; --ink-2:#3D3F55; --muted:#666666;
  --line:#E8EAED; --line-2:#D6DAE0;
  --accent:#4A90D9; --accent-2:#3A7BC8; --accent-ink:#FFFFFF; --accent-soft:#EEF4FF;
  --cyan:#4A90D9; --grad:linear-gradient(135deg,#4A90D9 0%,#3A7BC8 100%);
  --ok:#1E9E62; --ok-soft:#E8F7EF;
  --info:#2F6FB5; --info-soft:#EAF2FC;
  --warn:#9A6400; --warn-soft:#FFF6E0;
  --err:#C62828; --err-soft:#FDECEC;
  --radius:12px; --shadow:0 4px 20px rgba(74,144,217,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,"Noto Sans SC",sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
code,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.wrap.narrow{max-width:620px}
.wrap.wide{max-width:1280px}

/* header */
.site-head{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.head-inner{display:flex;align-items:center;gap:22px;height:66px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0}
.logo .mark{display:none;width:28px;height:28px;border-radius:8px;background:var(--accent);flex:0 0 auto;position:relative}
.logo .mark::after{content:"";position:absolute;inset:0;display:grid;place-items:center;color:#fff;font:800 12px/1 Arial,sans-serif;letter-spacing:.3px}
.logo .wm{font-weight:800;font-size:20px;letter-spacing:-.5px}
.logo .wm em{font-style:normal;color:var(--accent)}
.logo small{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:260px}
.head-menu{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav{display:flex;gap:20px;font-size:14.5px;color:var(--ink-2);font-weight:500}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--accent)}
.head-cta{display:flex;align-items:center;gap:10px}
.lang{font-size:13px;color:var(--muted);border:1px solid var(--line-2);border-radius:999px;padding:5px 12px}
.lang:hover{border-color:var(--accent);color:var(--accent)}
.navtoggle{display:none}
.burger{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--line-2);border-radius:10px;cursor:pointer;position:relative;background:var(--panel)}
.burger span,.burger span::before,.burger span::after{position:absolute;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger span{top:19px;left:11px}
.burger span::before{content:"";top:-6px;left:0}
.burger span::after{content:"";top:6px;left:0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:10px;font-size:14.5px;font-weight:700;border:1px solid transparent;cursor:pointer;font-family:inherit;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--accent);color:var(--accent-ink);border-radius:8px}
.btn-primary:hover{background:var(--accent-2)}
.btn-ghost{border:1.5px solid var(--accent);color:var(--accent);background:transparent;border-radius:8px}
.btn-ghost:hover{background:var(--accent);color:#fff}
.btn-lg{padding:14px 26px;font-size:16px}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn-block{width:100%}

/* sections */
section{padding:72px 0}
section.page{padding:40px 0 72px}
.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;max-width:680px;margin:0 auto 36px}
.sec-head h2{font-size:30px;font-weight:800;letter-spacing:-.5px;display:inline-flex;align-items:center;gap:12px}
h1{font-size:42px;font-weight:800;line-height:1.15;letter-spacing:-1.2px}
h1 em{font-style:normal;color:var(--accent)}
.note{font-size:13px;color:var(--muted);text-align:center;margin-top:14px}
.empty{color:var(--muted);text-align:center;padding:28px}
.lead{color:var(--ink-2);margin:6px 0 20px}
.small{font-size:13px}
.live-dot{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:800;letter-spacing:1.2px;color:var(--ok);background:var(--ok-soft);padding:3px 10px;border-radius:999px}
.live-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(30,158,98,.5);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(30,158,98,.5)}70%{box-shadow:0 0 0 7px rgba(30,158,98,0)}100%{box-shadow:0 0 0 0 rgba(30,158,98,0)}}
@media(prefers-reduced-motion:reduce){.live-dot::before{animation:none}}

/* hero */
.hero{padding:64px 0 72px;position:relative;background:linear-gradient(135deg,#F8FAFF 0%,#EEF4FF 100%);border-bottom:1px solid var(--line)}
.hero .wrap{position:relative}
.hero-grid{display:grid;grid-template-columns:1fr 440px;gap:48px;align-items:start}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.chips span{font-size:13px;font-weight:600;color:#fff;background:var(--accent);padding:4px 14px;border-radius:20px}
.hero .sub{margin:18px 0 28px;font-size:17px;color:var(--ink-2);max-width:540px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.stats div{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 14px}
.stats b{display:block;font-size:24px;font-weight:800;letter-spacing:-.6px;color:var(--accent)}
.stats span{font-size:12.5px;color:var(--muted)}

/* order card */
.ordercard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;box-shadow:var(--shadow)}
.oc-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.oc-head b{font-size:18px}
.oc-step{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.5px;margin:16px 0 8px}
.plans{display:grid;gap:8px}
.plan{position:relative;display:grid;grid-template-columns:1fr auto;gap:2px 12px;align-items:center;background:var(--panel-2);border:1px solid var(--line);border-radius:12px;padding:12px 14px;cursor:pointer;transition:.15s}
.plan:hover{border-color:var(--line-2)}
.plan input{position:absolute;opacity:0;pointer-events:none}
.plan:has(input:checked){border-color:var(--accent);background:var(--accent-soft);box-shadow:0 4px 20px rgba(74,144,217,.10)}
.pl-name{font-weight:700;font-size:15.5px;display:flex;align-items:center;gap:8px}
.pl-name i{font-style:normal;font-size:10.5px;font-weight:700;color:#fff;background:var(--accent);padding:2px 8px;border-radius:10px}
.pl-sub{grid-column:1;font-size:12.5px;color:var(--muted)}
.pl-price{grid-column:2;grid-row:1/3;text-align:right;font-size:12px;color:var(--muted)}
.pl-price b{display:block;font-size:20px;color:var(--ink);letter-spacing:-.5px}
.pl-price small{display:block;font-size:11px}
.oc-input{width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:8px;background:#fff;color:var(--ink);font-family:inherit;font-size:15px}
.oc-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(74,144,217,.18)}
.oc-hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.payrow{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.paym{display:grid;gap:1px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:12px;color:var(--muted);background:var(--panel-2);position:relative}
.paym b{font-size:14px;color:var(--ink)}
.paym.on{border-color:var(--accent);background:var(--accent-soft)}
.paym.on b{color:var(--accent)}
.paym.off{opacity:.6}
.paym input{position:absolute;opacity:0}
.qty{grid-column:1/-1;display:flex;align-items:center;gap:8px;margin-top:4px;font-size:13px;color:var(--muted)}
.qty button{width:30px;height:30px;border-radius:8px;border:1px solid var(--line-2);background:var(--panel-2);color:var(--ink);cursor:pointer;font-size:16px}
.qty input{width:56px;text-align:center;padding:5px;border:1px solid var(--line-2);border-radius:8px;background:var(--bg);color:var(--ink);font-family:inherit;font-size:14px}
.oc-total{display:flex;align-items:baseline;gap:8px;border-top:1px solid var(--line);margin:18px 0 12px;padding-top:14px;font-size:14px;color:var(--muted)}
.oc-total b{margin-left:auto;font-size:30px;color:var(--ink);letter-spacing:-.8px;font-variant-numeric:tabular-nums}
.oc-total em{font-style:normal;color:var(--accent);font-weight:700}
.oc-agree{font-size:12px;color:var(--muted);text-align:center;margin-top:10px}
.oc-agree a{color:var(--accent)}
.alert{background:var(--err-soft);color:var(--err);border:1px solid rgba(255,107,107,.3);border-radius:10px;padding:10px 12px;font-size:14px;margin-bottom:12px}

/* flow timeline */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.flow::before{content:"";position:absolute;left:12%;right:12%;top:22px;height:2px;background:linear-gradient(90deg,var(--accent),var(--line-2))}
.fstep{position:relative;padding:0 16px;text-align:center}
.fstep i{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--accent);border:2px solid var(--accent);color:#fff;font-style:normal;font-weight:800;position:relative;z-index:1;margin-bottom:10px}
.fstep em{display:block;font-style:normal;font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.5px}
.fstep b{display:block;font-size:17px;margin:2px 0 6px}
.fstep span{font-size:13.5px;color:var(--muted)}

/* compare table */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.cmp{width:100%;border-collapse:separate;border-spacing:0;background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:14.5px;min-width:640px}
table.cmp th,table.cmp td{padding:13px 16px;text-align:center;border-bottom:1px solid var(--line)}
table.cmp td:first-child{text-align:left;color:var(--ink-2)}
table.cmp th{background:var(--panel-2);font-weight:800;font-size:15px;position:relative;vertical-align:top}
table.cmp th small{display:block;font-weight:600;font-size:12.5px;color:var(--accent);margin-top:2px}
table.cmp th.hot{background:var(--accent-soft);box-shadow:inset 0 3px 0 var(--accent)}
table.cmp th i{display:block;font-style:normal;font-size:10.5px;font-weight:700;color:#fff;background:var(--accent);padding:2px 8px;border-radius:999px;width:max-content;margin:0 auto 6px}
table.cmp tr:last-child td{border-bottom:0}
table.cmp tr.act td{padding:16px}

/* guarantee / grids */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;position:relative;overflow:hidden;transition:.2s}
.gcard:hover,.hstep:hover,.step:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-2px)}
.gcard::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.gcard b{display:block;font-size:17px;margin-bottom:6px}
.gcard span{font-size:14px;color:var(--muted)}

/* how-to */
.howto{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.hstep{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;display:flex;flex-direction:column;gap:8px}
.hstep i{width:32px;height:32px;border-radius:9px;background:var(--accent);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-weight:800}
.hstep b{font-size:17px}
.hstep span{font-size:14px;color:var(--muted);flex:1}
.hstep .sample{display:block;background:var(--bg-2);border:1px dashed var(--line-2);border-radius:8px;padding:10px 12px;font-size:14px;letter-spacing:2px;color:var(--accent);word-break:break-all}
.hstep .sample.url{letter-spacing:0;font-size:12.5px;color:var(--info)}
.hstep .btn{align-self:flex-start}
.safe{text-align:center;color:var(--ok);font-size:14px;margin-top:22px}

/* live board */
.liveboard{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;max-width:820px;margin:0 auto}
.lrow{display:grid;grid-template-columns:1.3fr 1fr auto auto;gap:12px;align-items:center;padding:12px 18px;border-bottom:1px solid var(--line);font-size:14px}
.lrow:last-child{border-bottom:0}
.lrow .who{color:var(--ink-2)}
.lrow .what{color:var(--muted)}
.lrow .when{color:var(--muted);font-size:12.5px;font-variant-numeric:tabular-nums}
.st{font-size:11.5px;font-weight:800;padding:3px 9px;border-radius:999px;white-space:nowrap}
.st-paid{background:var(--info-soft);color:var(--info)}
.st-redeemed{background:var(--warn-soft);color:var(--warn)}
.st-completed{background:var(--ok-soft);color:var(--ok)}

/* faq */
.faq{max-width:760px;margin:0 auto}
.faq details{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq details[open]{border-color:var(--line-2)}
.faq summary{cursor:pointer;list-style:none;padding:16px 50px 16px 20px;font-weight:600;font-size:15.5px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:12px;font-size:22px;color:var(--accent)}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 20px 18px;color:var(--muted);font-size:14.5px}

/* cards / forms (pay, redeem, track, admin) */
.form-split{display:grid;grid-template-columns:1.4fr .7fr;gap:24px;align-items:start}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:28px;box-shadow:var(--shadow)}
.card h1{font-size:26px;letter-spacing:-.5px;margin-bottom:14px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field .hint{display:block;font-weight:400;color:var(--muted);font-size:13px;margin:-2px 0 8px}
.field .hint a{color:var(--info);word-break:break-all}
.field input[type=text],.field input[type=email],.field input[type=password],.field textarea,.field select{width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:10px;font-family:inherit;font-size:15px;color:var(--ink);background:var(--bg)}
.field textarea.mono,.field input.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13.5px}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(74,144,217,.18)}
.aside-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:14px}
.aside-card h3{font-size:15.5px;margin-bottom:10px}
.aside-card ol{padding-left:20px;font-size:14px;color:var(--muted);display:grid;gap:8px}
.aside-card p{font-size:14px;color:var(--muted);margin-bottom:10px}
.status-line{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;padding:5px 12px;border-radius:999px;margin-bottom:12px;background:var(--panel-2);color:var(--muted)}
.status-line i{width:8px;height:8px;border-radius:50%;background:currentColor}
.status-line.st-pending{background:var(--warn-soft);color:var(--warn)}
.status-line.st-paid_claimed{background:var(--info-soft);color:var(--info)}
.status-line.st-paid{background:var(--info-soft);color:var(--info)}
.status-line.st-redeemed{background:var(--warn-soft);color:var(--warn)}
.status-line.st-completed{background:var(--ok-soft);color:var(--ok)}
.kv{display:flex;gap:12px;align-items:baseline;font-size:14.5px;padding:5px 0}
.kv span{color:var(--muted);min-width:84px}
.kv b{font-weight:600;word-break:break-all}
.hint{font-size:13px;color:var(--muted);margin:6px 0 12px}
.paybox{background:var(--bg-2);border:1px solid var(--line);border-radius:14px;padding:20px;margin:14px 0}
.amount{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap}
.amount span{color:var(--muted);font-size:14px;min-width:84px}
.amount b{font-size:38px;font-weight:800;letter-spacing:-1px;font-variant-numeric:tabular-nums;color:var(--ink)}
.amount em{font-style:normal;font-weight:800;color:var(--accent)}
.amount .copy{margin-left:auto}
.copy{border:1px solid var(--line-2);background:#fff;border-radius:8px;padding:6px 12px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;color:var(--ink)}
.copy:hover{border-color:var(--accent);color:var(--accent)}
.copy.done{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}
.qr-row{display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:start}
.qr{width:150px;height:150px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px;display:grid;place-items:center}
.qr img,.qr canvas{width:134px!important;height:134px!important}
.addr .net{color:var(--accent)}
.addr code{display:block;word-break:break-all;background:var(--bg);border:1px solid var(--line-2);border-radius:10px;padding:10px 12px;font-size:14px;margin:4px 0 10px;color:var(--accent)}
.warn{background:var(--warn-soft);color:var(--warn);border:1px solid rgba(255,209,102,.3);border-radius:10px;padding:10px 14px;font-size:13.5px;margin-top:14px}
#countdown{font-variant-numeric:tabular-nums;color:var(--warn)}
.paidform{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.next{margin-top:20px;padding:14px 16px;border-radius:12px;background:var(--accent-soft);font-size:14px;color:var(--ink-2)}
.next b{display:block;margin-bottom:4px;color:var(--accent)}
.cardbox{display:flex;align-items:center;gap:12px;background:var(--accent-soft);border:1px dashed var(--accent);border-radius:12px;padding:16px 18px;margin:14px 0 8px}
.cardbox code{flex:1;font-size:26px;letter-spacing:4px;color:var(--accent);word-break:break-all}

/* prose */
.prose h1{font-size:30px;margin-bottom:20px}
.prose p{margin-bottom:14px;color:var(--ink-2);font-size:15px}
.prose a{color:var(--accent)}

/* footer */
footer{background:var(--bg);border-top:1px solid var(--line);color:#999;padding:44px 0 24px;font-size:13.5px}
footer a{color:var(--muted)}
footer a:hover{color:var(--ink)}
footer h4{font-size:12.5px;text-transform:uppercase;letter-spacing:1.3px;color:var(--ink);margin-bottom:14px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;padding-bottom:26px;border-bottom:1px solid var(--line)}
.foot-about .logo{margin-bottom:12px}
.foot-about p{max-width:320px;line-height:1.7;margin-bottom:12px}
.paylogos span{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:3px 9px;font-size:12px;color:var(--accent)}
.foot-grid ul{list-style:none;display:grid;gap:9px;align-content:start}
.foot-bot{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:20px;font-size:12.5px}
.foot-bot .disc{max-width:560px}

/* admin */
body.admin{background:var(--bg-2)}
body.admin-login{display:grid;place-items:center;min-height:100vh}
body.admin-login .card{width:min(380px,92vw)}
.search input{padding:8px 12px;border:1px solid var(--line-2);border-radius:8px;font-family:inherit;font-size:13.5px;width:260px;background:var(--bg);color:var(--ink)}
.cnt{background:var(--accent);color:#fff;border-radius:999px;padding:0 7px;font-size:11px;margin-left:4px}
.admin-summary{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;margin-bottom:20px}
.admin-summary>*{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center;display:block}
.admin-summary b{display:block;font-size:20px;font-weight:800;color:var(--ink)}
.admin-summary span{font-size:12px;color:var(--muted)}
.order-row{background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:8px}
.order-row summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:84px 130px 1fr 120px 1.2fr 100px;gap:12px;align-items:center;padding:12px 16px;font-size:13.5px}
.order-row summary::-webkit-details-marker{display:none}
.order-row .st{text-align:center;background:var(--panel-2);color:var(--muted)}
.order-row.st-pending .st{background:var(--warn-soft);color:var(--warn)}
.order-row.st-paid_claimed .st{background:var(--info-soft);color:var(--info)}
.order-row.st-paid .st{background:var(--info-soft);color:var(--info)}
.order-row.st-redeemed .st{background:var(--accent-soft);color:var(--accent)}
.order-row.st-completed .st{background:var(--ok-soft);color:var(--ok)}
.order-row .amt{font-weight:700;font-variant-numeric:tabular-nums}
.order-row .muted{color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.order-body{border-top:1px solid var(--line);padding:16px}
.cols{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;margin-bottom:14px}
.cols dl{display:grid;grid-template-columns:84px 1fr;gap:6px 12px;font-size:13.5px}
.cols dt,.cols .dt{color:var(--muted);display:block;margin-bottom:6px}
.cols dd code,.cols dd a code{background:var(--bg-2);padding:2px 6px;border-radius:5px;color:var(--accent)}
.tok{width:100%;background:var(--bg-2);color:var(--ink-2);border:1px solid var(--line-2);border-radius:8px;padding:8px;font-size:12px;margin-bottom:8px}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.actions form{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.statusform select{padding:6px 8px;border:1px solid var(--line-2);border-radius:8px;background:var(--bg);color:var(--ink);font-family:inherit;font-size:13px}
.noteform{margin-left:auto}
.noteform input{padding:6px 10px;border:1px solid var(--line-2);border-radius:8px;font-family:inherit;font-size:13px;width:220px;background:var(--bg);color:var(--ink)}

/* responsive */
@media(max-width:960px){
  .burger{display:block}
  .logo small{display:none}
  .head-menu{position:absolute;top:66px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 18px;display:none;box-shadow:var(--shadow)}
  .navtoggle:checked ~ .head-menu{display:flex}
  .nav{flex-direction:column;gap:0}
  .nav a{padding:12px 0;border-bottom:1px solid var(--line);font-size:16px}
  .head-cta{margin-top:14px;justify-content:space-between}
  .head-cta .btn{flex:1}
  .hero-grid,.form-split{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .flow{grid-template-columns:1fr 1fr;gap:22px}
  .flow::before{display:none}
  .grid3,.howto{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  h1{font-size:32px}
  .sec-head h2{font-size:25px}
  section{padding:56px 0}
  .admin-summary{grid-template-columns:repeat(4,1fr)}
  .order-row summary{grid-template-columns:84px 1fr 110px}
  .order-row summary span:nth-child(3),.order-row summary .muted{display:none}
  .cols{grid-template-columns:1fr}
  .search input{width:100%}
}
@media(max-width:600px){
  .flow,.foot-grid{grid-template-columns:1fr}
  .payrow{grid-template-columns:1fr 1fr}
  .card,.ordercard{padding:20px 16px}
  .qr-row{grid-template-columns:1fr}
  .qr{margin:0 auto}
  .amount b{font-size:30px}
  .amount .copy{margin-left:0}
  .cardbox code{font-size:20px;letter-spacing:2px}
  .lrow{grid-template-columns:1fr auto;grid-auto-rows:auto}
  .lrow .what,.lrow .when{grid-column:1/-1;font-size:12.5px}
  h1{font-size:28px}
}