*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--primary:#4F46E5;--primary-hover:#4338CA;--primary-light:#EEF2FF;--bg:#F3F4F6;--card:#FFFFFF;--text:#111827;--text-secondary:#6B7280;--border:#E5E7EB;--success:#059669;--success-bg:#ECFDF5;--error:#DC2626;--error-bg:#FEF2F2;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);--shadow-lg:0 10px 25px rgba(0,0,0,.1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}a{color:inherit;text-decoration:none}.header{background:var(--card);border-bottom:1px solid var(--border);padding:0 24px;height:64px;justify-content:space-between;position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:var(--shadow)}.header,.logo{display:flex;align-items:center}.logo{gap:10px;font-size:20px;font-weight:700;color:var(--primary)}.nav{display:flex;gap:6px}.nav-link{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-secondary);transition:all .15s;cursor:pointer;border:none;background:none;font-family:inherit}.nav-link:hover{background:var(--primary-light);color:var(--primary)}.nav-link.active{background:var(--primary);color:#fff}.nav-link.danger{color:var(--error)}.container{max-width:800px;margin:0 auto;padding:32px 20px}.container.narrow{max-width:440px}.hero{text-align:center;padding:48px 20px 32px}.hero h1{font-size:32px;font-weight:800;margin-bottom:8px;background:linear-gradient(135deg,var(--primary),#7C3AED);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{color:var(--text-secondary);max-width:500px;margin:0 auto}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}.card+.card{margin-top:24px}.card h2{font-size:18px;font-weight:600;margin-bottom:20px;gap:8px}.card h2,.card-icon{display:flex;align-items:center}.card-icon{width:32px;height:32px;background:var(--primary-light);border-radius:8px;justify-content:center;font-size:16px}label{display:block;font-size:14px;font-weight:500;margin-bottom:6px}input[type=password],input[type=text],input[type=url],select,textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:inherit;color:var(--text);background:var(--card);transition:border-color .15s,box-shadow .15s;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}textarea{resize:vertical;min-height:100px}.form-group{margin-bottom:20px}.form-hint{font-size:12px;color:var(--text-secondary);margin-top:4px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .15s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-primary:disabled{background:#A5B4FC;cursor:not-allowed}.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--border)}.btn-outline:hover{background:var(--primary-light)}.btn-block{width:100%}.tabs{display:flex;gap:4px;background:var(--bg);padding:4px;border-radius:10px;margin-bottom:24px}.tab-btn{flex:1 1;padding:10px;border:none;border-radius:8px;font-size:14px;font-weight:500;font-family:inherit;cursor:pointer;background:transparent;color:var(--text-secondary);transition:all .15s}.tab-btn.active{background:var(--card);color:var(--text);box-shadow:var(--shadow)}.upload-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:40px 20px;text-align:center;cursor:pointer;transition:all .2s;position:relative}.upload-zone.dragover,.upload-zone:hover{border-color:var(--primary);background:var(--primary-light)}.upload-zone input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer}.upload-icon{font-size:40px;margin-bottom:8px}.upload-zone p{color:var(--text-secondary);font-size:14px}.file-name{margin-top:8px;font-weight:600;color:var(--primary);font-size:14px}.result-box{background:#F9FAFB;border:1px solid var(--border);border-radius:8px;padding:20px;white-space:pre-wrap;font-size:14px;line-height:1.7;max-height:400px;overflow-y:auto}.result-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.toast{position:fixed;top:80px;right:20px;padding:14px 20px;border-radius:10px;font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);z-index:1000;transform:translateX(120%);transition:transform .3s ease}.toast.show{transform:translateX(0)}.toast.success{background:var(--success-bg);color:var(--success);border:1px solid #a7f3d0}.toast.error{background:var(--error-bg);color:var(--error);border:1px solid #fecaca}.loading-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;display:flex;justify-content:center;align-items:center}.loading-card{background:var(--card);border-radius:var(--radius);padding:32px 40px;text-align:center;box-shadow:var(--shadow-lg)}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(1turn)}}.badge{display:inline-flex;padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600}.badge-anthropic{background:#FDF2E9;color:#D97706}.badge-openai{background:#EBF5EB;color:#16A34A}.badge-none{background:var(--error-bg);color:var(--error)}.flex-between{display:flex;justify-content:space-between;align-items:center}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.text-center{text-align:center}.text-sm{font-size:13px}.text-muted{color:var(--text-secondary)}.mono{font-family:SF Mono,Fira Code,monospace}@media (max-width:640px){.hero h1{font-size:24px}.container{padding:20px 16px}.card{padding:20px}}