:root{--dark:#3f4043;--stone:#878787;--soft:#bfc2c2;--orange:#ff7a1c;--ivory:#fbfbfb;--white:#fff;--max-w:640px}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--white);color:var(--dark);font-family:-apple-system,Helvetica Neue,Segoe UI,Roboto,Arial,sans-serif;-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}.page{max-width:var(--max-w);margin:0 auto;padding:16px 16px 48px;min-height:100vh}.header{display:flex;align-items:center;justify-content:space-between;padding:10px 0 12px;border-bottom:3px solid var(--orange);margin-bottom:16px}.header h1{font-size:15px;margin:0;line-height:1.3}.header .sub{font-size:11px;color:var(--stone);margin-top:2px}.back{font-size:13px;color:var(--stone);padding:8px 10px;border:1px solid var(--soft);border-radius:6px;white-space:nowrap}.card{border:1px solid var(--soft);border-radius:10px;overflow:hidden;margin-bottom:14px;background:var(--white)}.card-link{display:flex;align-items:center;gap:12px;padding:14px}.code-chip{flex:0 0 auto;background:var(--orange);color:var(--white);font-weight:700;font-size:13px;padding:6px 10px;border-radius:6px;min-width:66px;text-align:center}.card-title{font-size:15px;font-weight:600;line-height:1.3}.chevron{margin-left:auto;color:var(--soft);font-size:18px}.section-bar{background:var(--orange);color:var(--white);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.02em;padding:8px 12px}.section-body{padding:14px 14px 16px}.bullet-list{margin:0;padding:0;list-style:none}.bullet-list li{display:flex;gap:8px;font-size:15px;line-height:1.4;margin-bottom:8px}.bullet-list li:before{content:"•";color:var(--orange);font-weight:700}.step-list{margin:0;padding:0;list-style:none}.step-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid #efefef}.step-item:last-child{border-bottom:none}.step-num{flex:0 0 auto;color:var(--orange);font-weight:800;font-size:22px;min-width:28px}.step-head{font-weight:700;font-size:15px}.step-tail{font-size:14px;color:var(--dark)}.note{background:var(--ivory);border:1px solid var(--soft);border-left:5px solid var(--orange);border-radius:6px;padding:12px 14px;font-size:14px;font-weight:600;margin-bottom:14px}.big-number{background:var(--orange);color:var(--white);border-radius:10px;padding:16px;text-align:center;margin-bottom:16px}.big-number .label{font-size:12px;text-transform:uppercase;font-weight:700;opacity:.9}.big-number .value{font-size:34px;font-weight:800;letter-spacing:.02em}.contact-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #efefef;font-size:14px}.contact-row:last-child{border-bottom:none}.contact-row .label{color:var(--stone)}.contact-row .value{font-weight:700;text-align:right}.msg-card{border:1px solid var(--soft);border-radius:10px;margin-bottom:14px;overflow:hidden}.msg-title{background:var(--dark);color:var(--white);font-size:12px;font-weight:700;text-transform:uppercase;padding:8px 12px}.msg-text{padding:14px;font-size:17px;font-weight:700;line-height:1.4}.footer-note{margin-top:24px;font-size:11px;color:var(--stone);text-align:center;line-height:1.5}.install-hint{background:var(--ivory);border:1px dashed var(--soft);border-radius:8px;padding:10px 12px;font-size:12px;color:var(--stone);margin-bottom:16px}