:root{--brand:#20bca1;--brand-contrast:#fff;--bg:#fff;--surface:#f7f9fa;--text:#353535;--muted:#6b7280;--success:#16a34a;--success-vivid:#10b981;--danger:#dc2626;--radius:12px}*{box-sizing:border-box}body,html{padding:0;margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif}a{color:inherit;text-decoration:none}button{cursor:pointer}.container-root{max-width:1000px;margin:0 auto;padding:24px}.header-bar{justify-content:space-between;margin:24px 0}.brand-mark,.header-bar{display:flex;align-items:center}.brand-mark{gap:12px}.brand-logo{width:40px;height:40px;border-radius:50%;background:var(--brand);display:inline-block}.brand-name{font-weight:700;font-size:20px}.checkout-grid{display:grid;grid-template-columns:1.2fr .8fr;grid-gap:24px;gap:24px}@media (max-width:900px){.checkout-grid{grid-template-columns:1fr}}.panel{background:var(--surface);border-radius:var(--radius);padding:20px;border:1px solid rgba(16,24,40,.06)}.panel-title{margin:0 0 12px;font-size:18px}.product-name{font-size:18px;font-weight:700}.product-code{font-size:13px;color:var(--muted);margin-top:6px}.payment-details{margin-top:8px}.payment-price{font-weight:700;margin-bottom:6px}.payment-term{color:var(--muted);font-size:13px}.contract-scroll{height:90vh;max-height:90vh;overflow:auto;padding-right:8px}.contract-body p{font-size:9px;line-height:1.2}.contract-head p{font-size:9px}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}.form-row-single{display:block}.input-control{display:flex;flex-direction:column;gap:6px;margin:8px 0}.input-label{font-size:13px;color:var(--muted)}.text-input{width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(16,24,40,.08);background:#fff;color:var(--text)}.text-input:focus{outline:2px solid rgba(32,188,161,.25);outline-offset:0}.actions{display:flex;align-items:center;justify-content:space-between;margin-top:16px}.pay-button{background:var(--brand);color:var(--brand-contrast);border:none;border-radius:999px;padding:12px 18px;font-weight:600}.pay-button:disabled{opacity:.6}.secondary-link{color:var(--muted);font-size:14px}.summary-list{list-style:none;margin:0;padding:0}.summary-item{padding:8px 0;border-bottom:1px dashed rgba(16,24,40,.06)}.summary-item,.summary-total{display:flex;align-items:center;justify-content:space-between}.summary-total{padding:12px 0;font-weight:700}.alert{margin-top:12px;padding:12px;border-radius:10px}.alert-success{background:rgba(22,163,74,.08);border:1px solid rgba(22,163,74,.16);color:#166f3b}.alert-error{background:rgba(220,38,38,.08);border:1px solid rgba(220,38,38,.16);color:#8b1e1e}.status-badge{display:inline-block;padding:6px 10px;border-radius:999px;background:var(--brand);color:var(--brand-contrast)}.section-spacing{margin-top:16px}.checkout-center{min-height:60vh;display:flex;align-items:center;justify-content:center}.checkout-panel{padding:28px 28px 56px;border-radius:var(--radius);background:linear-gradient(180deg,rgba(0,0,0,.02),rgba(0,0,0,.01));box-shadow:0 6px 20px rgba(2,6,23,.06)}.page-bottom-space{height:40px}.checkout-title{font-size:20px;color:var(--brand);font-weight:700}@keyframes spin{to{transform:rotate(1turn)}}.loading-center{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:48px}.panel.order-complete{background:var(--success-vivid);color:#fff;border:none;padding:18px;border-radius:18px;box-shadow:0 12px 40px rgba(16,185,129,.25)}.panel.order-complete .panel-title{color:#fff;margin:0 0 8px}.panel.order-complete p{color:hsla(0,0%,100%,.95);margin:0}.terms-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px;margin-top:12px;align-items:center}.terms-checkbox{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text);width:100%}.terms-checkbox input{width:18px;height:18px}.terms-accept-btn{width:100%;padding:14px 18px;border-radius:12px;font-size:15px;font-weight:600;margin-top:12px}@media (max-width:600px){.terms-row{grid-template-columns:1fr}}