:root{color-scheme:light;--kc-blue: #2563eb;--kc-blue-dark: #1d4ed8;--kc-ink: #0f172a;--kc-muted: #64748b;--kc-border: #e2e8f0;--kc-bg: #f8fafc;--kc-card: #ffffff;--kc-green: #16a34a;--kc-red: #dc2626;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--kc-bg);color:var(--kc-ink)}.kc-page{min-height:100vh;display:flex;flex-direction:column}.kc-header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--kc-card);border-bottom:1px solid var(--kc-border)}.kc-logo{height:32px;width:auto}.kc-header-right{display:flex;align-items:center;gap:16px}.kc-account{font-size:14px;color:var(--kc-ink)}.kc-secure{font-size:13px;color:var(--kc-muted);white-space:nowrap}.kc-main{flex:1;width:100%;max-width:980px;margin:0 auto;padding:32px 20px}.kc-intro h1{font-size:28px;margin:0 0 4px}.kc-muted{color:var(--kc-muted)}.kc-error{color:var(--kc-red)}.kc-note{font-size:12.5px;color:var(--kc-muted);margin-top:12px}.kc-mt{margin-top:24px}.kc-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:24px}@media (min-width: 820px){.kc-grid{grid-template-columns:1.2fr 1fr}}.kc-card{background:var(--kc-card);border:1px solid var(--kc-border);border-radius:16px;padding:24px}.kc-card h2{font-size:18px;margin:0 0 14px}.kc-paths{display:grid;gap:10px}.kc-path{display:flex;align-items:center;gap:12px;border:1px solid var(--kc-border);border-radius:12px;padding:12px 14px;cursor:pointer}.kc-path-on{border-color:var(--kc-blue);box-shadow:0 0 0 1px var(--kc-blue) inset}.kc-path span{display:flex;flex-direction:column}.kc-path small{color:var(--kc-muted);font-size:12.5px}.kc-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;font-size:14px}.kc-field input,.kc-field select{padding:10px 12px;border:1px solid var(--kc-border);border-radius:10px;font-size:15px;background:#fff}.kc-field input[readonly]{background:var(--kc-bg);color:var(--kc-muted)}.kc-invalid{border-color:var(--kc-red)!important}.kc-summary{background:linear-gradient(180deg,#f5f8ff,#fff 60%)}.kc-row{display:flex;justify-content:space-between;padding:8px 0;font-size:15px}.kc-total{border-top:1px solid var(--kc-border);margin-top:8px;padding-top:14px;font-size:20px;font-weight:700;color:var(--kc-blue)}.kc-btn{border:none;border-radius:10px;padding:12px 18px;font-size:15px;font-weight:600;cursor:pointer}.kc-btn-primary{background:var(--kc-blue);color:#fff}.kc-btn-primary:hover{background:var(--kc-blue-dark)}.kc-btn-primary:disabled{opacity:.6;cursor:not-allowed}.kc-pay{width:100%;margin-top:16px}.kc-discount{color:var(--kc-green);font-size:15px}.kc-link{border:none;background:none;color:var(--kc-muted);cursor:pointer;font-size:12px;padding:0 2px}.kc-link:hover{color:var(--kc-red)}.kc-coupon{display:flex;gap:8px;margin-top:14px}.kc-coupon input{flex:1;padding:9px 12px;border:1px solid var(--kc-border);border-radius:10px;font-size:14px;text-transform:uppercase}.kc-btn-ghost{background:#fff;color:var(--kc-blue);border:1px solid var(--kc-blue)}.kc-btn-ghost:hover{background:#eff4ff}.kc-coupon-err{margin-top:8px;font-size:13px}.kc-trust{list-style:none;padding:0;margin:14px 0 0;font-size:13.5px;color:var(--kc-green)}.kc-trust li{padding:2px 0}.kc-already{max-width:520px;margin:40px auto;text-align:center}.kc-already h1{font-size:24px}.kc-footer{text-align:center;padding:20px;color:var(--kc-muted);font-size:13px;border-top:1px solid var(--kc-border);background:var(--kc-card)}