:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#18202a;background:#f4f7fb;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}.page{min-height:100vh;display:grid;place-items:start center;padding:max(42px,env(safe-area-inset-top)) 18px max(28px,env(safe-area-inset-bottom));background:linear-gradient(180deg,#dcefff 0,#f4f7fb 300px)}.card{width:min(100%,440px);padding:28px 24px;border:1px solid rgba(21,86,130,.06);border-radius:24px;background:#fff;box-shadow:0 18px 50px #174b821f}.merchant-mark{float:right;display:grid;place-items:center;width:46px;height:46px;border-radius:14px;color:#fff;background:linear-gradient(135deg,#116fc1,#19a4a7);font-size:20px;font-weight:800}.eyebrow{margin:0 0 8px;color:#1677a9;font-size:14px;font-weight:750}h1{margin:0;font-size:26px;letter-spacing:-.02em}.terminal-name{margin:8px 0 30px;color:#647284}label,.channel-heading{display:block;margin-bottom:10px;font-size:14px;font-weight:700}.amount-input{display:flex;align-items:center;gap:8px;border-bottom:2px solid #cad4df;padding:7px 0 11px;transition:border-color .2s}.amount-input:focus-within{border-color:#1677a9}.amount-input.invalid{border-color:#da3f3f}.amount-input span{font-size:30px}.amount-input input{width:100%;min-width:0;border:0;outline:0;color:#101820;background:transparent;font-size:42px;font-weight:750}.amount-help{display:flex;justify-content:space-between;gap:12px;min-height:38px;padding-top:8px;color:#8491a0;font-size:12px}.amount-input.invalid+.amount-help span:first-child{color:#c93434}.channel-heading{margin-top:18px}.channels{display:grid;gap:10px}.detected-channel{display:flex;align-items:center;gap:12px;margin-top:18px;padding:13px 14px;border-radius:12px;background:#f3f7fa;color:#263341}.detected-channel span:nth-child(2){display:flex;flex-direction:column;gap:2px}.detected-channel small{color:#7b8794;font-size:12px}.channel{display:flex;align-items:center;gap:11px;width:100%;padding:13px 14px;border:1px solid #dce3ea;border-radius:12px;color:#263341;background:#fff;text-align:left;cursor:pointer}.channel.selected{border-color:#1677a9;background:#f0f9fc;box-shadow:inset 0 0 0 1px #1677a9}.channel-dot{width:12px;height:12px;border-radius:50%;background:#999}.channel-dot.wechat{background:#09b83e}.channel-dot.alipay{background:#1677ff}.channel-dot.unionpay{background:#d93038}.radio{display:grid;place-items:center;width:20px;height:20px;margin-left:auto;border:1px solid #bbc7d2;border-radius:50%;color:#fff;font-size:12px}.selected .radio{border-color:#1677a9;background:#1677a9}.pay-button{width:100%;margin-top:22px;padding:15px;border:0;border-radius:13px;color:#fff;background:linear-gradient(135deg,#126fa5,#168d93);font-weight:750;cursor:pointer;box-shadow:0 9px 24px #126fa538}.pay-button:disabled{background:#b8c7d5;cursor:not-allowed;box-shadow:none}.safe-hint{margin:15px 0 0;color:#8491a0;text-align:center;font-size:12px}.error{margin:14px 0 0;padding:10px 12px;border-radius:9px;color:#a62626;background:#fff0f0;font-size:13px}.status-card,.result-card{margin-top:8vh;text-align:center}.status-card p{color:#687789}.spinner{width:34px;height:34px;margin:4px auto 18px;border:3px solid #dbe7ee;border-top-color:#1677a9;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.result-icon{display:grid;place-items:center;width:62px;height:62px;margin:0 auto 20px;border-radius:50%;font-size:30px;font-weight:800}.result-icon.success{color:#fff;background:#16a05d}.result-icon.pending{color:#14709e;background:#e6f5fb}.result-icon.failed{color:#b53535;background:#ffeded}.result-amount{margin:20px 0 26px;font-size:36px;font-weight:800}dl{margin:0;padding:4px 0;border-top:1px solid #edf0f3;border-bottom:1px solid #edf0f3}dl div{display:flex;justify-content:space-between;gap:16px;padding:11px 0;font-size:13px}dt{color:#7b8794}dd{margin:0;max-width:70%;overflow-wrap:anywhere;text-align:right}@media(max-width:360px){.card{padding:24px 19px}.amount-input input{font-size:36px}.amount-help{flex-direction:column;gap:3px}}