:root{color-scheme:light;--ink:#172c3d;--muted:#75848c;--accent:#087f74;--line:#e5eceb}*{box-sizing:border-box}body{margin:0;background:#f4f7f6;color:var(--ink);font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;font-size:15px}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}[hidden]{display:none!important}.nav{height:88px;max-width:1120px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 28px}.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:19px}.brand small{font-size:10px;letter-spacing:2px;color:#82938e;font-weight:500;margin-left:8px}.mark{display:inline-grid;place-items:center;width:35px;height:35px;background:var(--accent);color:white;border-radius:11px;font-size:25px;font-weight:400}.badge{border:1px solid #d8e4df;border-radius:24px;padding:7px 13px;font-size:12px;color:#687e73}.wide{max-width:1064px;margin:auto;padding:32px 0 36px}.intro{margin-bottom:36px}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--accent);font-weight:600}h1{font-size:38px;font-weight:650;letter-spacing:-1.5px;margin:16px 0 12px}.intro p{color:var(--muted);margin:0;font-size:15px}.grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:stretch}.card{background:white;border:1px solid var(--line);border-radius:22px;padding:32px;box-shadow:0 8px 28px #233a2d04}.section-title{display:flex;align-items:center;gap:12px;margin-bottom:28px}h2{font-size:18px;margin:0;font-weight:600}.step{border:1px solid var(--line);border-radius:8px;padding:5px 7px;font-size:11px;color:#8a9a93;font-variant-numeric:tabular-nums}label{display:block;margin:18px 0 10px;font-weight:500;font-size:13px}input,textarea{max-width:100%;outline:none}input:focus,textarea:focus{border-color:var(--accent)!important;box-shadow:0 0 0 3px #087f7410}textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;resize:vertical;line-height:1.6;font-size:13px}input::placeholder{color:#bac5bf}.hint{color:var(--muted);font-size:12px;line-height:1.8}.primary{background:var(--accent);color:white;width:100%;border:0;border-radius:11px;padding:16px 18px;text-align:center;font-weight:600;margin-top:20px;transition:background .15s}.primary:hover{background:#066d64}.primary span{float:right}.error{font-size:13px;color:#b84a39;line-height:1.5;min-height:18px}.footnote{font-size:11px;color:#86958f;border-top:1px solid var(--line);padding-top:20px;margin-top:16px}.dot{display:inline-block;background:#77a992;border-radius:50%;height:6px;width:6px;margin-right:6px}#empty{text-align:center;min-height:310px;display:flex;flex-direction:column;align-items:center;justify-content:center}.placeholder-qr{width:100px;height:100px;display:grid;place-items:center;background:#f6f8f7;border:1px dashed #dce6e0;border-radius:20px;color:#b9cbc1;font-size:70px}h3{font-size:15px;font-weight:500;margin:22px 0 0}#empty p{font-size:12px;color:#97a49c;margin-top:10px}.qr-wrap{background:white;padding:24px;width:272px;margin:0 auto;border:1px solid var(--line);border-radius:16px}#qrcode{width:224px;height:224px}#qrcode img{display:block}.qr-caption{text-align:center;color:#6c8075;font-size:12px;margin:14px 0}.copy-row{display:flex;gap:8px}.copy-row input{min-width:0;flex:1;border:1px solid var(--line);border-radius:8px;padding:11px;font-size:12px;color:#5c7066;background:#fafcfb}.copy-row button{background:#eaf4ef;color:var(--accent);border:0;border-radius:8px;padding:0 16px;font-size:12px}.actions{display:flex;gap:10px;margin-top:12px}.secondary{border:1px solid var(--line);color:#5e7569;border-radius:8px;padding:10px;background:white;font-size:12px;text-align:center;flex:1}.bottom-note{text-align:center;color:#94a098;font-size:11px;margin:25px 0 0}footer{max-width:1064px;margin:0 auto;padding:26px 0;border-top:1px solid #e2e8e4;font-size:11px;color:#9ca8a1;display:flex;justify-content:space-between}.pay-body{min-height:100vh;display:grid;place-items:center;padding:24px}.payment{max-width:430px;width:100%;text-align:center;padding:36px 30px}.pay-brand{display:flex;justify-content:center;align-items:center;gap:10px;font-size:17px;margin-bottom:40px}.payment-note{font-size:13px;color:#7e8a83;line-height:1.9;margin:30px 0 0}.divider{height:1px;background:var(--line);margin:28px 0 20px}.text-button{background:none;border:0;color:var(--accent);padding:6px;font-size:13px}:focus-visible{outline:2px solid #22a18d;outline-offset:3px}@media(max-width:750px){.nav{height:72px;padding:0 22px}.brand small{display:none}.wide{padding:26px 18px}.intro{padding:0 5px}h1{font-size:29px;letter-spacing:-1px}.grid{grid-template-columns:1fr;gap:18px}.card{padding:24px}.bottom-note{line-height:1.8;padding:0 12px}footer{margin:0 22px}.payment{padding:32px 25px}.result-card{min-height:360px}}