:root{--primary-color: #667eea;--secondary-color: #764ba2;--success-color: #4CAF50;--warning-color: #FF9800;--danger-color: #F44336;--info-color: #2196F3;--dark-color: #333;--light-color: #f5f5f5;--white: #fff;--shadow: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .15);--radius: 12px;--radius-lg: 20px}.app{min-height:100vh;background:linear-gradient(135deg,var(--app-bg-a, #667eea) 0%,var(--app-bg-b, #764ba2) 100%);display:flex;flex-direction:column;zoom:var(--app-zoom, 1)}.app-header{position:fixed;top:0;left:0;right:0;height:56px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:space-between;padding:0 16px;z-index:100;box-shadow:0 2px 8px #0000001a}.header-left,.header-right{width:80px}.header-right{display:flex;justify-content:flex-end}.back-btn{font-size:24px;color:var(--primary-color);cursor:pointer;padding:8px}.header-title{font-size:18px;font-weight:600;color:var(--dark-color);flex:1;text-align:center}.gold-display{background:linear-gradient(135deg,gold,#ffb347);padding:6px 12px;border-radius:20px;font-size:14px;font-weight:600;color:#333;cursor:pointer;box-shadow:0 2px 8px #ffd7004d}.app-main{flex:1;padding-top:56px;padding-bottom:70px}.app-nav{position:fixed;bottom:0;left:0;right:0;height:70px;background:#fffffffa;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;justify-content:space-around;align-items:center;box-shadow:0 -4px 12px #0000001a;z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;text-decoration:none;color:#999;transition:all .3s;padding:8px 12px}.nav-item.active{color:var(--primary-color)}.nav-icon{font-size:24px;margin-bottom:4px}.nav-text{font-size:12px;font-weight:500}.fade-enter-active,.fade-leave-active{transition:transform .22s ease}.fade-enter-from{transform:translateY(10px)}.fade-leave-to{transform:translateY(-10px)}.app-toast{position:fixed;top:72px;left:50%;transform:translate(-50%);background:#fffffffa;border-radius:var(--radius-lg);padding:16px 20px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow-lg);z-index:2000;min-width:260px;max-width:90vw;border-left:5px solid var(--success-color)}.app-toast.level{border-left-color:var(--warning-color)}.app-toast.achievement{border-left-color:gold;background:linear-gradient(135deg,#fffdf5,#fff8e1)}.toast-icon{font-size:40px;line-height:1}.toast-title{font-size:16px;font-weight:700;color:var(--dark-color);margin-bottom:2px}.toast-desc{font-size:13px;color:#666}.toast-enter-active,.toast-leave-active{transition:all .35s cubic-bezier(.22,1,.36,1)}.toast-enter-from,.toast-leave-to{opacity:0;transform:translate(-50%) translateY(-24px)}.app-dialog-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:3000;padding:24px;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.app-dialog{background:#fff;border-radius:var(--radius-lg);padding:28px 24px 20px;width:100%;max-width:340px;text-align:center;box-shadow:var(--shadow-lg);animation:dialogIn .25s cubic-bezier(.22,1,.36,1)}@keyframes dialogIn{0%{opacity:0;transform:scale(.92) translateY(12px)}to{opacity:1;transform:scale(1) translateY(0)}}.dialog-icon{font-size:48px;margin-bottom:12px;line-height:1}.dialog-title{font-size:18px;font-weight:700;color:var(--dark-color);margin-bottom:10px}.dialog-message{font-size:14px;color:#666;line-height:1.8;white-space:pre-line;margin-bottom:20px;text-align:left;background:#fafafa;padding:12px 14px;border-radius:var(--radius)}.dialog-actions{display:flex;gap:10px}.dialog-actions .btn{flex:1}.btn-ghost{background:#f0f0f0;color:#666}.btn-ghost:hover{background:#e6e6e6}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border:none;border-radius:var(--radius);font-size:16px;font-weight:600;cursor:pointer;transition:all .3s;text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--white);box-shadow:0 4px 15px #667eea66}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea80}.btn-success{background:linear-gradient(135deg,#4caf50,#81c784);color:var(--white);box-shadow:0 4px 15px #4caf5066}.btn-warning{background:linear-gradient(135deg,#ff9800,#ffb74d);color:var(--white)}.btn-danger{background:linear-gradient(135deg,#f44336,#e57373);color:var(--white)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.card{background:var(--white);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow);margin-bottom:16px}.progress-bar{height:8px;background:#e0e0e0;border-radius:4px;overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary-color),var(--secondary-color));border-radius:4px;transition:width .3s ease}@media (min-width: 768px){.app-nav{max-width:500px;left:50%;transform:translate(-50%);border-radius:20px 20px 0 0}}