.demo-page{background:var(--paper);color:var(--ink)}
.demo-head-actions{display:flex;align-items:center;gap:18px}
.demo-main{padding:54px 0 90px}
.demo-title{text-align:center;max-width:850px;margin:0 auto 38px}
.demo-title h1{margin:12px 0;color:var(--ink);font-size:clamp(36px,5vw,58px)}
.demo-title p{color:var(--ink-2);font-size:18px;line-height:1.8}
.demo-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:34px;align-items:start}
.demo-screen-card,.demo-workspace{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
.demo-screen-card{padding:20px;position:sticky;top:20px}
.demo-screen-title{display:flex;justify-content:space-between;gap:10px;color:var(--ink-3);font-size:12px;margin-bottom:14px}
.demo-screen-title a{color:var(--red);text-decoration:none}
.demo-phone{display:grid;place-items:center;background:linear-gradient(180deg,#f6f0e5,#e5dccd);border-radius:14px;padding:18px;min-height:430px;overflow:hidden}
.demo-phone img{width:100%;max-width:310px;max-height:580px;object-fit:contain;border-radius:16px;box-shadow:0 16px 42px rgba(35,27,19,.2)}
.demo-workspace{padding:clamp(22px,3vw,36px)}
.demo-controls{display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:end}
.demo-controls label{display:flex;flex-direction:column;gap:7px;color:var(--ink-2);font-size:13px;font-weight:600}
.demo-controls select{width:100%;padding:12px;border:1px solid #d9d3c9;border-radius:9px;background:#fff;font:inherit;color:var(--ink)}
.demo-note{margin:18px 0;padding:13px 15px;border-left:3px solid var(--gold);background:var(--paper);color:var(--ink-3);font-size:13px;line-height:1.7}
.demo-progress-head{display:flex;justify-content:space-between;margin-bottom:14px;color:var(--ink-2);font-size:14px}
.demo-step-list{display:grid;gap:10px}
.demo-step{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:14px;border:1px solid var(--line);border-radius:11px;background:#fcfaf6}
.demo-step>span{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--red);color:#fff;font-size:13px}
.demo-step b{color:var(--ink)}
.demo-step p{margin:4px 0 0;color:var(--ink-3);font-size:14px;line-height:1.65}
.demo-result{margin-top:24px;padding:20px;border:1px solid rgba(170,126,49,.35);border-radius:14px;background:#fffdf8}
.demo-result-head{display:flex;justify-content:space-between;gap:14px;padding-bottom:12px;border-bottom:1px solid var(--line);font-family:var(--serif);font-size:18px;color:var(--ink)}
.demo-result-head span{color:var(--gold);font-size:13px;letter-spacing:.1em}
.demo-result-item{display:grid;grid-template-columns:18px 1fr;gap:8px;padding:12px 0;border-bottom:1px dashed var(--line)}
.demo-result-item span{color:var(--gold);font-size:10px;padding-top:5px}
.demo-result-item p{margin:0;color:var(--ink-2);line-height:1.7}
.demo-result-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.demo-result>p{color:var(--ink-3);font-size:12px;margin:14px 0 0}
@media(max-width:900px){.demo-layout{grid-template-columns:1fr}.demo-screen-card{position:static}.demo-phone{min-height:300px}.demo-controls{grid-template-columns:1fr 1fr}.demo-controls .btn{grid-column:1/-1}.demo-main{padding:34px 0 60px}}
@media(max-width:560px){.demo-head-actions{gap:8px}.demo-head-actions .checkout-back{font-size:12px}.demo-controls{grid-template-columns:1fr}.demo-controls .btn{grid-column:auto}.demo-screen-card{padding:14px}.demo-phone{min-height:240px;padding:10px}.demo-workspace{padding:18px 14px}}