:root{--primary-gradient: linear-gradient(135deg, #FF6B8B 0%, #FF8E53 100%);--primary-color: #FF6B8B;--secondary-gradient: linear-gradient(135deg, #EEF1F5 0%, #E6E9F0 100%);--success-color: #4CAF50;--success-bg: #E8F5E9;--warning-color: #FF9800;--warning-bg: #FFF3E0;--danger-color: #FF5252;--danger-bg: #FFEBEE;--bg-primary: #F9FAFB;--bg-secondary: #FFFFFF;--bg-card: #FFFFFF;--bg-glass: rgba(255, 255, 255, .8);--text-primary: #2D3748;--text-secondary: #718096;--text-muted: #A0AEC0;--text-on-primary: #FFFFFF;--border-color: #EDF2F7;--border-hover: #CBD5E0;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 24px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .04);--shadow-md: 0 8px 24px rgba(0, 0, 0, .06);--shadow-lg: 0 20px 48px rgba(0, 0, 0, .08);--shadow-colored: 0 10px 30px rgba(255, 107, 139, .3);--font-family: "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;--font-size-xs: 12px;--font-size-sm: 14px;--font-size-base: 16px;--font-size-lg: 18px;--font-size-xl: 24px;--font-size-2xl: 32px;--font-size-3xl: 40px;--transition-fast: .15s ease;--transition-base: .3s ease;--transition-bounce: .4s cubic-bezier(.175, .885, .32, 1.275)}*{margin:0;padding:0;box-sizing:border-box}html,body{font-family:var(--font-family);font-size:var(--font-size-base);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body:before{content:"";position:fixed;top:-20%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,107,139,.05) 0%,transparent 70%);z-index:-1;pointer-events:none}body:after{content:"";position:fixed;bottom:-10%;left:-10%;width:500px;height:500px;background:radial-gradient(circle,rgba(255,142,83,.05) 0%,transparent 70%);z-index:-1;pointer-events:none}#root{min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:480px;margin:0 auto;padding:0 var(--spacing-md)}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:var(--text-primary);letter-spacing:-.02em}h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-2xl)}h3{font-size:var(--font-size-xl)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-md) var(--spacing-xl);font-size:var(--font-size-base);font-weight:600;border:none;border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-base);text-decoration:none;position:relative;letter-spacing:.02em}.btn:active{transform:scale(.98)}.btn-primary{background:var(--primary-gradient);color:var(--text-on-primary);box-shadow:var(--shadow-colored)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 15px 35px #ff6b8b66}.btn-secondary{background:#fff;color:var(--text-primary);border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:#f7fafc;border-color:var(--border-hover);transform:translateY(-1px)}.btn-block{width:100%}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-md);margin-bottom:var(--spacing-md);transition:transform var(--transition-base),box-shadow var(--transition-base)}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}input,textarea,select{width:100%;padding:14px var(--spacing-md);font-size:var(--font-size-base);font-family:var(--font-family);background:#f7fafc;border:1px solid transparent;border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-fast)}input:focus,textarea:focus,select:focus{outline:none;background:#fff;border-color:var(--primary-color);box-shadow:0 0 0 3px #ff6b8b1a}input::placeholder,textarea::placeholder{color:var(--text-muted)}.progress-bar{width:100%;height:8px;background:#edf2f7;border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;background:var(--primary-gradient);border-radius:var(--radius-full);transition:width .6s cubic-bezier(.4,0,.2,1)}.options-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--spacing-md)}.option-item{aspect-ratio:1.5/1;border-radius:var(--radius-md);overflow:hidden;cursor:pointer;border:2px solid transparent;transition:all var(--transition-bounce);background:#fff;box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center}.option-item span{font-size:24px;font-weight:700;color:var(--text-secondary)}.option-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}.option-item.selected{border-color:var(--primary-color);background:#fff5f7;box-shadow:var(--shadow-colored)}.option-item.selected span{color:var(--primary-color)}.option-item img{width:100%;height:100%;object-fit:contain}.tag{display:inline-block;padding:4px 10px;border-radius:var(--radius-sm);font-size:var(--font-size-xs);font-weight:600;margin-right:6px}.tag-success{background:var(--success-bg);color:var(--success-color)}.tag-warning{background:var(--warning-bg);color:var(--warning-color)}.tag-danger{background:var(--danger-bg);color:var(--danger-color)}.tag-primary{background:#e3f2fd;color:#1976d2}.tag-secondary{background:#f5f5f5;color:var(--text-secondary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.fade-in{animation:fadeIn .6s cubic-bezier(.16,1,.3,1) forwards}.float{animation:float 4s ease-in-out infinite}.text-center{text-align:center}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.mt-sm{margin-top:var(--spacing-sm)}.mt-md{margin-top:var(--spacing-md)}.mt-lg{margin-top:var(--spacing-lg)}.mt-xl{margin-top:var(--spacing-xl)}.mb-md{margin-bottom:var(--spacing-md)}.mb-lg{margin-bottom:var(--spacing-lg)}.page{flex:1;display:flex;flex-direction:column;padding:var(--spacing-lg) 0}.modal-overlay{position:fixed;inset:0;background:#2d374899;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--spacing-md)}.modal-content{background:#fff;border-radius:var(--radius-lg);padding:var(--spacing-xl);width:100%;max-width:400px;position:relative;animation:fadeIn .3s cubic-bezier(.16,1,.3,1);box-shadow:var(--shadow-lg);border:1px solid white}.modal-title{font-size:var(--font-size-xl);text-align:center;margin-bottom:var(--spacing-xs);color:var(--text-primary)}.modal-close{position:absolute;top:var(--spacing-md);right:var(--spacing-md);background:#f7fafc;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border:none;color:var(--text-secondary);font-size:18px;cursor:pointer;transition:all var(--transition-fast)}.modal-close:hover{background:#edf2f7;color:var(--text-primary)}.code-input{font-size:var(--font-size-xl);text-align:center;letter-spacing:4px;font-family:monospace;background:#f7fafc;border:2px solid #EDF2F7;color:var(--primary-color);font-weight:700}.code-input:focus{border-color:var(--primary-color);background:#fff}.btn:disabled{background:#cbd5e0;box-shadow:none;cursor:not-allowed;transform:none!important}select{appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 1rem center;background-size:1em}