:root{--ink:#153352;--muted:#66788b;--blue:#1462a2;--line:#dbe4ed;--paper:#f4f7fa;--gold:#eab64c}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.7}header{max-width:1140px;margin:auto;padding:26px 32px;display:flex;justify-content:space-between;align-items:center}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.brand{font-size:27px;font-weight:800;color:var(--ink);letter-spacing:2px}.brand span{font-size:18px;font-weight:500;margin-left:12px;border-left:1px solid #bdcbd9;padding-left:12px;letter-spacing:0}main{max-width:1080px;margin:42px auto 64px;padding:0 32px}.account{display:grid;grid-template-columns:1fr 440px;gap:72px;align-items:center}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:700}.intro h1{font-size:38px;line-height:1.35;margin:18px 0 24px}.lead{color:var(--muted);font-size:18px;line-height:1.9}.benefits{display:flex;gap:10px;margin-top:34px;flex-wrap:wrap}.benefits span{border:1px solid var(--line);border-radius:5px;padding:6px 13px;background:#fff;font-size:14px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;box-shadow:0 12px 36px #18345408}.tabs{display:flex;gap:7px;border-bottom:1px solid var(--line);margin-bottom:24px}.tabs button{flex:1;border:0;background:transparent;border-radius:0;padding:10px 0;font-size:15px;color:var(--muted)}.tabs button[aria-selected=true]{color:var(--blue);border-bottom:3px solid var(--blue);font-weight:700}button,input{font:inherit}button{cursor:pointer;border:1px solid var(--line);border-radius:6px;padding:10px 15px;white-space:nowrap}button:disabled{cursor:wait;opacity:.55}input{display:block;width:100%;min-width:0;border:1px solid #c4d1df;border-radius:6px;padding:11px 12px;color:var(--ink);background:#fff}input:focus{outline:2px solid #1766ad55;outline-offset:1px}label{display:block;margin:15px 0 7px;font-size:14px;font-weight:600}.inline{display:flex;gap:9px}.inline input{flex:1;width:130px}.secondary{color:var(--blue);background:#f3f7fc}.primary{width:100%;background:var(--blue);color:#fff;border-color:var(--blue);font-weight:600;margin-top:5px;padding:12px}.muted{font-size:14px;color:var(--muted)}.message{font-size:14px;min-height:24px;margin:14px 0 6px;color:#b13a31;overflow-wrap:anywhere}.message.success{color:#1f754b}.small-links{display:flex;justify-content:space-between;gap:14px;margin-top:22px;font-size:14px}.fine{font-size:12px;color:var(--muted);border-top:1px solid #edf1f5;padding-top:18px;margin:22px 0 0}footer{text-align:center;color:#7f8fa0;font-size:12px;padding:22px}[hidden]{display:none!important}#wechat{text-align:center}#wechat-frame{border:0;width:100%;height:370px}h1{line-height:1.4}.checkout{max-width:900px}.checkout h1{font-size:30px;margin-bottom:8px}.checkout-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:28px}.amounts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}.amounts button{background:white;color:var(--ink)}.amounts button.selected,.channels button.selected{border-color:var(--blue);background:#edf5ff;color:var(--blue)}.channels{display:flex;gap:8px;margin:14px 0}.channels button{flex:1;background:#fff}.qr-area{text-align:center;display:flex;flex-direction:column;justify-content:center;min-height:310px;background:#f7f9fc;border:1px dashed #c6d4e2;border-radius:10px;padding:24px}.qr-area img{width:212px;height:212px;align-self:center;max-width:100%;object-fit:contain}.qr-area .total{font-size:28px;margin:8px;color:var(--ink)}.qr-area p{margin:8px}.order-number{font-size:12px;color:var(--muted);overflow-wrap:anywhere}#open-pay{display:block;border-radius:6px;background:var(--blue);color:#fff;padding:10px;margin-top:10px}.verification-status{margin:15px 0;border:1px solid var(--line);border-radius:6px;padding:12px;font-size:14px}.verification-status a{margin-left:12px}@media(max-width:720px){header{padding:20px}.brand{font-size:24px}main{margin:12px auto 30px;padding:0 20px}.account{display:block}.intro h1{font-size:27px;margin:12px 0}.lead{font-size:15px;margin:10px 0 20px}.benefits{display:none}.card{padding:22px 20px;border-radius:12px}.eyebrow{font-size:10px}.intro br{display:none}.checkout-grid{grid-template-columns:1fr;gap:20px}.checkout h1{font-size:27px}.qr-area{min-height:230px}.tabs{gap:8px}.tabs button{font-size:14px}.inline button{padding:10px 12px}footer{padding:14px}#wechat-frame{height:365px}}