*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #4f46e5;--primary-hover: #4338ca;--danger: #ef4444;--danger-hover: #dc2626;--success: #22c55e;--bg: #f8fafc;--surface: #ffffff;--surface-variant: #f1f5f9;--text: #1e293b;--text-secondary: #64748b;--border: #e2e8f0;--radius-sm: 8px;--radius: 12px;--radius-lg: 16px;--shadow-card: 0 1px 3px rgba(15, 23, 42, .12), 0 1px 2px rgba(15, 23, 42, .08);--shadow-modal: 0 20px 50px rgba(15, 23, 42, .25);--btn-height: 44px}body{font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;font-size:15px;-webkit-font-smoothing:antialiased}.container{max-width:960px;margin:0 auto;padding:16px}h1{font-size:22px;font-weight:700;letter-spacing:-.01em}h2{font-size:18px;font-weight:600}h3{font-size:15px;font-weight:600}.page-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.muted{color:var(--text-secondary)}.loading-note{text-align:center;padding:64px 16px;color:var(--text-secondary)}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:16px;margin-bottom:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:var(--btn-height);padding:0 20px;border-radius:999px;border:none;font-family:inherit;font-size:15px;font-weight:500;cursor:pointer;text-decoration:none;transition:background .15s,box-shadow .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px #4f46e54d}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--border)}.btn-outline:hover:not(:disabled){background:var(--surface-variant)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:var(--danger-hover)}.btn-sm{height:34px;padding:0 14px;font-size:13px}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:6px}input:not([type=checkbox]):not([type=radio]),input[type=text],input[type=number],input[type=email],input[type=password],input[type=date],select,textarea{width:100%;height:48px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);font-family:inherit;font-size:15px;color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s}select{cursor:pointer}input:not([type=checkbox]):not([type=radio]):focus,input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #4f46e51f}input[type=checkbox]{width:20px;height:20px;accent-color:var(--primary);cursor:pointer}.form-error{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;border-radius:var(--radius-sm);padding:10px 12px;font-size:14px}.form-hint{font-size:12px;color:var(--text-secondary);margin-top:4px}.calc-box{background:#eef2ff;border:1px solid #c7d2fe;border-radius:var(--radius);padding:12px 14px;margin-bottom:14px;display:grid;gap:7px}.calc-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:13px}.calc-row>span{color:var(--text-secondary)}.calc-row>strong{font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap}.calc-row.total{border-top:1px solid #c7d2fe;padding-top:7px}.calc-row.total>strong{font-size:17px;font-weight:600}.calc-hint{font-size:12px;color:var(--text-secondary);margin:0}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a8c;display:flex;align-items:flex-start;justify-content:center;padding:24px 16px;overflow-y:auto;z-index:100}.modal{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-modal);width:100%;max-width:560px;animation:modal-in .18s ease-out}@keyframes modal-in{0%{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--border)}.modal-title{font-size:17px;font-weight:700}.modal-close{background:none;border:none;font-size:26px;line-height:1;color:var(--text-secondary);cursor:pointer;padding:2px 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var(--border);border-radius:var(--radius);padding:12px 14px;margin-bottom:10px;background:var(--surface)}.repay-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:6px}.repay-amount{font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}.repay-meta{font-size:12px;color:var(--text-secondary)}.repay-actions{display:flex;gap:8px;margin-top:10px}.repay-actions .btn{height:34px;font-size:13px;padding:0 14px}.auth-link{display:inline-block;color:var(--primary);text-decoration:none;cursor:pointer;background:none;border:none;font-family:inherit;font-size:inherit;padding:0}.auth-link:hover{text-decoration:underline}.danger-zone{border:1px solid #fecaca;background:#fffbfb}.verify-box{max-width:420px;margin:40px auto;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:24px;text-align:center}.auth-logo{text-align:center;margin-bottom:20px}.auth-logo-subtitle{color:var(--text-secondary);font-size:14px}.apk-box{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}.apk-btn{height:var(--btn-height);padding:0 20px;border-radius:999px;background:var(--success);color:#fff;font-weight:600;text-decoration:none;display:inline-flex;align-items:center}.apk-meta{font-size:13px;color:var(--text-secondary)}.apk-missing{font-size:13px;color:var(--danger)}@media (max-width: 640px){.modal-overlay{padding:12px 8px}.btn{padding:0 16px}}body{display:flex;justify-content:center;background:#e9eef5}.app-shell{width:80%;min-width:min(880px,100%);max-width:2000px;min-height:100vh;background:var(--bg);border-left:1px solid var(--border);border-right:1px solid var(--border);box-shadow:0 0 48px #0f172a1f;padding:0 8px}.app-shell>*{max-width:100%;margin-left:auto;margin-right:auto}@media (max-width: 920px){body{background:var(--bg)}.app-shell{width:100%;min-width:0;max-width:100%;border-left:none;border-right:none;box-shadow:none;padding:0 12px}}.demo-banner{background:#fef3c7;border:1px solid #fcd34d;color:#92400e;border-radius:var(--radius);padding:10px 14px;font-size:13px;margin-bottom:12px}.demo-banner-toggle{display:flex;align-items:center;gap:6px;width:100%;background:none;border:0;padding:0;margin-bottom:10px;font:inherit;font-weight:600;color:#92400e;cursor:pointer;text-align:left}.demo-banner-toggle:disabled{cursor:default}.demo-banner-chevron{font-size:12px;line-height:1}.demo-banner-hint{font-weight:400;font-size:12px;opacity:.75}.bank-hints{border:1px solid var(--border);border-top:0;border-radius:0 0 var(--radius-sm) var(--radius-sm);background:var(--surface);margin-top:-6px;overflow:hidden}.bank-hints button{display:block;width:100%;text-align:left;padding:8px 14px;border:0;background:none;font:inherit;font-size:14px;color:var(--text);cursor:pointer}.bank-hints button:hover{background:var(--surface-alt, rgba(79, 70, 229, .06))}