*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--brand-600: #c41e3a;--brand-500: #dc2626;--brand-400: #ef4444;--brand-100: #fee2e2;--brand-50: #fef2f2;--brand-glow: rgba(196, 30, 58, .15);--brand-soft: rgba(196, 30, 58, .08);--gold-600: #b45309;--gold-500: #d97706;--gold-400: #f59e0b;--gold-100: #fef3c7;--gold-50: #fffbeb;--gray-900: #111827;--gray-700: #374151;--gray-500: #6b7280;--gray-400: #9ca3af;--gray-300: #d1d5db;--gray-200: #e5e7eb;--gray-100: #f3f4f6;--gray-50: #f9fafb;--white: #ffffff;--green-600: #16a34a;--green-100: #dcfce7;--green-50: #f0fdf4;--red-600: #dc2626;--red-100: #fee2e2;--red-50: #fef2f2;--amber-600: #d97706;--amber-100: #fef3c7;--amber-50: #fffbeb;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--radius-xl: 16px;--radius-lg: 12px;--radius-md: 8px;--radius-sm: 6px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 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input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px var(--brand-soft)}.field input::placeholder{color:var(--gray-400)}.form-error{color:var(--red-600);font-size:13px;background:var(--red-50);padding:10px 14px;border-radius:var(--radius-sm);border-left:3px solid var(--red-600)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:1.5px solid var(--gray-300);border-radius:var(--radius-md);background:var(--white);color:var(--gray-700);font-size:14px;font-weight:600;font-family:var(--font);cursor:pointer;transition:all .15s}.btn:hover:not(:disabled){background:var(--gray-50);border-color:var(--gray-400);box-shadow:var(--shadow-xs)}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--brand-600);border-color:var(--brand-600);color:var(--white)}.btn-primary:hover:not(:disabled){background:var(--brand-500);border-color:var(--brand-500);box-shadow:0 4px 12px var(--brand-glow)}.btn-danger{color:var(--red-600);border-color:#dc26264d;background:transparent}.btn-danger:hover:not(:disabled){background:var(--red-50)}.btn-ghost{border:none;background:none;color:var(--gray-500);padding:8px 14px}.btn-ghost:hover:not(:disabled){color:var(--gray-700);background:var(--gray-100)}.btn-full{width:100%}.btn-lg{padding:12px 32px;font-size:15px;border-radius:var(--radius-lg)}.btn-sm{padding:6px 14px;font-size:13px}.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:currentColor;border-radius:50%;animation:spin .6s linear infinite}.setup-card{text-align:center;background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-xl);padding:56px 44px;max-width:480px;box-shadow:var(--shadow-xl);animation:card-in .5s ease-out}.setup-icon{width:72px;height:72px;margin:0 auto 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var(--gray-200)}.qr-img{display:block;width:220px;height:220px;border-radius:var(--radius-md)}.qr-placeholder{width:220px;height:220px;display:flex;align-items:center;justify-content:center;color:var(--brand-500)}.qr-sub{color:var(--gray-400);font-size:13px}.weixin-start{text-align:center;padding:16px 0}.weixin-start-text{color:var(--gray-500);font-size:14px;margin-bottom:16px;line-height:1.6}.table-wrap{overflow-x:auto;margin-top:12px}table{width:100%;border-collapse:collapse;font-size:13px}thead th{text-align:left;padding:10px 14px;color:var(--gray-500);font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.6px;border-bottom:1px solid var(--gray-200);background:var(--gray-50)}thead th:first-child{border-radius:var(--radius-sm) 0 0 0}thead th:last-child{border-radius:0 var(--radius-sm) 0 0}tbody td{padding:10px 14px;border-bottom:1px solid var(--gray-100)}tbody tr{transition:background .1s}tbody tr:hover{background:var(--gray-50)}.usage-tabs{margin-bottom:0}.dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:6px;vertical-align:middle}.dot-ok{background:var(--green-600)}.dot-err{background:var(--red-600)}.empty{text-align:center;color:var(--gray-400);padding:36px;font-size:14px}.text-error{color:var(--red-600)}.toast{position:fixed;top:20px;left:50%;transform:translate(-50%);z-index:1000;display:flex;align-items:center;gap:10px;padding:12px 24px;border-radius:var(--radius-lg);font-size:14px;font-weight:600;box-shadow:var(--shadow-lg)}.toast.success{background:var(--green-600);color:var(--white)}.toast.error{background:var(--red-600);color:var(--white)}.toast-icon{font-size:15px;font-weight:700}.toast-enter-active,.toast-leave-active{transition:all .3s cubic-bezier(.22,1,.36,1)}.toast-enter-from,.toast-leave-to{opacity:0;transform:translate(-50%) translateY(-12px) scale(.95)}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse-ring{0%{transform:scale(.5);opacity:.5}to{transform:scale(1.4);opacity:0}}@keyframes pulse-core{0%,to{transform:scale(1)}50%{transform:scale(1.06)}}@keyframes card-in{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes stagger-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:640px){.auth-card{padding:32px 24px}.setup-card{padding:40px 24px}.waiting-card{padding:32px 20px}.dashboard{padding:16px}.card{padding:20px}.metrics{grid-template-columns:repeat(2,1fr)}.weixin-connected{flex-direction:column;align-items:flex-start}.instance-actions{flex-wrap:wrap}.progress-steps{gap:0}.step-line{width:32px}.logo-text{font-size:18px}}