:root{--blue:#1677ff;--ink:#142338;--muted:#7b889a;--line:#e8edf4;--bg:#f5f8fd;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:var(--font);color:var(--ink);font-size:14px;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:var(--blue);text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #81b6ff;outline-offset:4px}[hidden]{display:none!important}
.topbar{max-width:1140px;height:112px;padding:0 40px;margin:auto;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-size:18px;font-weight:650;letter-spacing:.4px}.brand-mark{background:var(--blue);width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;color:white;font-size:25px;font-weight:700}.environment{display:flex;align-items:center;gap:8px;border:1px solid #dce5f2;border-radius:30px;padding:9px 15px;background:#ffffff88;color:#5e718b;font-size:12px}.dot{width:6px;height:6px;background:var(--blue);border-radius:50%}
.layout{max-width:1060px;margin:32px auto 0;display:grid;grid-template-columns:1fr 460px;gap:72px;padding:0 36px;align-items:center}.intro{padding:0 0 8px}.eyebrow{font-size:11px;letter-spacing:2.3px;color:var(--blue);font-weight:650}h1{font-size:44px;line-height:1.4;letter-spacing:-1.8px;font-weight:650;margin:22px 0 20px}.blue{color:var(--blue)}.intro-copy{font-size:15px;line-height:1.9;color:#718198;letter-spacing:.3px;margin:0}.intro-rule{height:1px;background:#dfe7f3;width:54px;margin:30px 0}.feature{display:flex;gap:16px;margin:19px 0}.feature-number{font-size:11px;color:#8ba2c1;padding-top:2px;font-weight:600}.feature strong{font-size:14px;font-weight:600}.feature p{color:var(--muted);font-size:12px;line-height:1.5;margin:6px 0 0}.site-label{display:inline-block;color:#91a1b7;font-size:11px;letter-spacing:1.1px;margin-top:31px}.site-label span{color:var(--blue);margin-left:8px}
.payment-card{background:white;padding:32px;border:1px solid #e7ecf5;border-radius:22px;box-shadow:0 16px 55px #284e8210;overflow:hidden}.card-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.card-kicker{font-size:9px;color:#96a4b6;letter-spacing:2px;font-weight:650}h2{font-size:22px;font-weight:650;letter-spacing:-.5px;margin:9px 0 0}.mini-mark{font-size:30px;font-weight:700;line-height:1;color:var(--blue);opacity:.8}.config-status{display:flex;gap:8px;align-items:center;font-size:11px;color:#986c29;background:#fff8ea;border:1px solid #faedce;border-radius:8px;line-height:1.7;padding:9px 11px;margin-bottom:24px}.status-light{width:5px;height:5px;background:#d9a245;border-radius:50%;flex-shrink:0}.config-status.is-ready{color:#278261;background:#f0faf5;border-color:#dbeee5}.is-ready .status-light{background:#34a577}.mode-switch{display:flex;padding:4px;background:#f3f6fb;border-radius:10px;margin-bottom:18px;gap:4px}.mode-switch button{flex:1;background:none;border:0;color:#8a96a6;border-radius:7px;padding:10px 4px;font-size:13px}.mode-switch button[aria-pressed=true]{background:white;color:var(--ink);font-weight:600;box-shadow:0 2px 5px #2344710c}.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.preset{position:relative;min-height:79px;border-radius:10px;border:1px solid var(--line);background:#fff;color:#536174;font-size:23px;font-weight:650;transition:border-color .15s,background .15s}.preset .currency{font-size:13px;font-weight:450;margin-right:4px}.preset[aria-pressed=true]{border:1.5px solid var(--blue);background:#f3f8ff;color:var(--blue)}.preset[aria-pressed=true]:after{content:"✓";position:absolute;right:8px;top:6px;font-size:10px;color:var(--blue)}.preset:hover{border-color:#91bfff}.preset-hint{display:block;font-size:9px;font-weight:400;margin-top:3px;color:#98a7ba}.preset[aria-pressed=true] .preset-hint{color:#5998ef}.amount-entry label{display:block;color:#65758c;font-size:12px;margin:4px 0 10px}.input-wrap{display:flex;align-items:center;border:1px solid #dce5f1;border-radius:10px;background:#fff;height:65px;padding:0 17px;gap:10px}.input-wrap:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px #1677ff12}.input-wrap>span{font-size:21px;color:#a0aabd}.input-wrap input{width:100%;min-width:0;border:none;outline:none!important;font-size:27px;font-weight:600;color:var(--ink);background:none}.input-wrap input::placeholder{font-size:17px;color:#bcc5d2;font-weight:400}.input-help{font-size:10px;color:#95a3b6;margin:10px 0 0}.total{border-top:1px dashed #e1e7f0;margin-top:25px;padding:21px 0;display:flex;align-items:center;justify-content:space-between}.total>span{color:#8895a7;font-size:12px}.total>div{display:flex;align-items:baseline;gap:4px}.total-currency{font-size:16px;font-weight:600}.total strong{font-size:30px;font-weight:650;letter-spacing:-.8px;font-variant-numeric:tabular-nums}.unit{font-size:9px;color:#a7b1be;margin-left:3px;letter-spacing:.6px}.submit{width:100%;border:0;border-radius:10px;background:var(--blue);color:white;padding:16px 19px;display:flex;justify-content:center;align-items:center;gap:16px;font-size:14px;font-weight:550;box-shadow:0 5px 12px #1677ff20;transition:background .15s}.submit:hover{background:#0967e8}.submit:disabled{cursor:wait;opacity:.7}.button-arrow{font-size:20px;line-height:1}.payment-note{text-align:center;color:#9aa7b8;font-size:10px;line-height:1.7;margin:14px 0 0}.form-error{background:#fff3f1;border-radius:7px;padding:10px 12px;color:#bd4a3f;font-size:12px;line-height:1.5;margin:0 0 14px}.card-footer{margin-top:25px;padding-top:18px;border-top:1px solid #f0f3f8;display:flex;align-items:center;justify-content:center;gap:7px;color:#a4afbd;font-size:10px}.page-footer{max-width:1060px;padding:0 36px;margin:49px auto 24px;display:flex;justify-content:space-between;font-size:10px;color:#aab6c6;letter-spacing:.3px}
.result-panel{text-align:center;padding:18px 0 24px}.result-symbol{display:inline-flex;width:62px;height:62px;border-radius:50%;align-items:center;justify-content:center;background:#eff6ff;color:var(--blue);font-size:28px}.result-panel h3{font-size:21px;margin:18px 0 9px}.result-panel p{font-size:12px;color:var(--muted);line-height:1.7}.result-amount{display:block;font-size:34px;letter-spacing:-.8px;font-weight:600;margin-top:22px}.is-paid .result-symbol{background:#edf9f2;color:#289e65}.order-detail{display:grid;grid-template-columns:95px 1fr;gap:13px 8px;border-top:1px dashed var(--line);padding-top:22px;margin:0 0 25px;font-size:11px}.order-detail dt{color:var(--muted)}.order-detail dd{margin:0;text-align:right;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.back-link{display:block;text-align:center;margin:20px 0 0;font-size:12px}.status-feedback{text-align:center;min-height:14px;color:var(--muted);font-size:11px;margin:12px 0 0}.redirect-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.redirect-card{padding:38px;background:#fff;border:1px solid var(--line);border-radius:20px;max-width:440px;width:100%;text-align:center}.redirect-card h1{font-size:24px;letter-spacing:-.3px;margin:24px 0 16px}.redirect-card p{font-size:12px;line-height:1.8;color:var(--muted);margin-bottom:25px}.redirect-card .subtle{font-size:11px;margin:18px 0}.link-button{display:block;text-align:center}
@media(min-width:1300px){.layout{margin-top:66px}.page-footer{margin-top:70px}}@media(max-width:900px){.layout{gap:30px;grid-template-columns:1fr 420px;padding:0 28px}.intro h1{font-size:35px}.topbar{padding:0 28px}.payment-card{padding:28px}}@media(max-width:730px){.topbar{height:78px;padding:0 22px}.brand{font-size:16px;gap:9px}.brand-mark{width:33px;height:33px;font-size:23px;border-radius:10px}.environment{padding:7px 11px;font-size:10px}.layout{display:flex;flex-direction:column;gap:23px;padding:0 20px;margin-top:14px;align-items:stretch;max-width:510px}.intro{padding:0 6px}.eyebrow{font-size:9px;letter-spacing:1.6px}.intro h1{font-size:29px;line-height:1.35;margin:12px 0 8px;letter-spacing:-.9px}.intro h1 br{display:none}.intro-copy{font-size:12px;line-height:1.7}.intro-copy br{display:none}.intro-rule,.feature,.site-label{display:none}.payment-card{padding:25px 23px;border-radius:17px}.card-heading{margin-bottom:19px}h2{font-size:21px}.config-status{margin-bottom:21px}.preset{min-height:73px}.total{padding:20px 0;margin-top:23px}.page-footer{max-width:510px;padding:0 25px;margin-top:25px;margin-bottom:22px;font-size:9px}.payment-note{font-size:9px}.redirect-card{padding:30px 24px}.order-detail{grid-template-columns:80px 1fr}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}