*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #8B4513;--primary-light: #A0522D;--primary-dark: #5D2E0C;--secondary-color: #D4AF37;--text-color: #333;--text-light: #666;--bg-color: #f5f5f5;--card-bg: rgba(255, 255, 255, .95);--border-color: #e0e0e0;--shadow: 0 4px 20px rgba(0, 0, 0, .1);--shadow-hover: 0 8px 30px rgba(0, 0, 0, .15)}body{font-family:PingFang SC,Microsoft YaHei,sans-serif;color:var(--text-color);line-height:1.6}.app-container{min-height:100vh;position:relative;overflow-x:hidden}.scene-background{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;transition:background 1s ease}.scene-day.scene-spring .scene-background{background:linear-gradient(180deg,#87ceeb,#98fb98,#90ee90)}.scene-day.scene-summer .scene-background{background:linear-gradient(180deg,#4a90d9,#7bc043,#5cb85c)}.scene-day.scene-autumn .scene-background{background:linear-gradient(180deg,#87ceeb,#f4a460,#d2691e)}.scene-day.scene-winter .scene-background{background:linear-gradient(180deg,#b0c4de,#e8e8e8,#dcdcdc)}.scene-night .scene-background{background:linear-gradient(180deg,#0c1445,#1a237e,#283593)}.particles{position:absolute;width:100%;height:100%;overflow:hidden}.star{position:absolute;width:2px;height:2px;background:#fff;border-radius:50%;animation:twinkle 2s infinite}@keyframes twinkle{0%,to{opacity:.3}50%{opacity:1}}.floating-elements{position:absolute;width:100%;height:100%;overflow:hidden;pointer-events:none}.floating-leaf{position:absolute;width:20px;height:20px;background:linear-gradient(135deg,#90ee90,#228b22);border-radius:0 50% 50%;transform:rotate(45deg);opacity:.3;animation:floatLeaf 15s infinite linear}@keyframes floatLeaf{0%{transform:translateY(-100px) rotate(0);opacity:0}10%{opacity:.3}90%{opacity:.3}to{transform:translateY(100vh) rotate(360deg);opacity:0}}.app-header{background:linear-gradient(135deg,#8b4513f2,#5d2e0cf2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;padding:0 20px;position:sticky;top:0;z-index:100;box-shadow:0 2px 20px #0003}.header-content{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:70px}.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff;font-size:24px;font-weight:700}.logo-icon{font-size:32px}.logo-text{background:linear-gradient(90deg,gold,orange);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.main-nav{display:flex;gap:30px}.nav-link{color:#ffffffe6;text-decoration:none;font-size:16px;padding:8px 16px;border-radius:20px;transition:all .3s}.nav-link:hover,.nav-link.router-link-active{background:#fff3;color:gold}.user-area{display:flex;align-items:center;gap:15px}.user-info{display:flex;align-items:center;gap:10px}.balance{color:gold;font-weight:500}.btn-recharge{background:linear-gradient(135deg,gold,orange);color:#5d2e0c;padding:6px 16px;border-radius:20px;text-decoration:none;font-size:14px;font-weight:500;transition:transform .3s}.btn-recharge:hover{transform:scale(1.05)}.user-dropdown{position:relative;cursor:pointer}.username{padding:8px 16px;border-radius:20px;background:#ffffff1a;transition:background .3s}.user-dropdown:hover .username{background:#fff3}.dropdown-menu{position:absolute;top:100%;right:0;margin-top:10px;background:#fff;border-radius:10px;box-shadow:var(--shadow);min-width:150px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .3s}.user-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}.dropdown-item{display:block;padding:12px 20px;color:var(--text-color);text-decoration:none;transition:background .3s}.dropdown-item:first-child{border-radius:10px 10px 0 0}.dropdown-item:last-child{border-radius:0 0 10px 10px}.dropdown-item:hover{background:#f5f5f5;color:var(--primary-color)}.btn-login,.btn-register{padding:10px 24px;border-radius:25px;text-decoration:none;font-weight:500;transition:all .3s}.btn-login{color:#fff;border:2px solid rgba(255,255,255,.5)}.btn-login:hover{border-color:#fff;background:#ffffff1a}.btn-register{background:linear-gradient(135deg,gold,orange);color:#5d2e0c}.btn-register:hover{transform:scale(1.05);box-shadow:0 4px 15px #ffd70066}.app-main{min-height:calc(100vh - 150px);padding:30px 20px}.app-footer{background:linear-gradient(135deg,#5d2e0cf2,#8b4513f2);color:#fffc;padding:30px 20px;text-align:center}.footer-content p{margin:5px 0}.footer-desc{font-size:14px;opacity:.7}.fade-enter-active,.fade-leave-active{transition:opacity .3s ease}.fade-enter-from,.fade-leave-to{opacity:0}.page-container{max-width:1400px;margin:0 auto}.page-title{text-align:center;font-size:36px;color:var(--primary-color);margin-bottom:30px;text-shadow:2px 2px 4px rgba(0,0,0,.1)}.card{background:var(--card-bg);border-radius:20px;box-shadow:var(--shadow);padding:30px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 30px;border-radius:25px;font-size:16px;font-weight:500;cursor:pointer;border:none;transition:all .3s;text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 15px #8b451366}.btn-secondary{background:linear-gradient(135deg,gold,orange);color:#5d2e0c}.btn-secondary:hover{transform:translateY(-2px);box-shadow:0 4px 15px #ffd70066}.btn-outline{background:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:#fff}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-color)}.form-input{width:100%;padding:14px 18px;border:2px solid var(--border-color);border-radius:12px;font-size:16px;transition:all .3s;background:#fff}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #8b45131a}.form-textarea{min-height:120px;resize:vertical}.form-select{width:100%;padding:14px 18px;border:2px solid var(--border-color);border-radius:12px;font-size:16px;background:#fff;cursor:pointer}.form-select:focus{outline:none;border-color:var(--primary-color)}.alert{padding:15px 20px;border-radius:10px;margin-bottom:20px}.alert-success{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.alert-error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.loading{display:flex;justify-content:center;align-items:center;padding:50px}.loading:after{content:"";width:40px;height:40px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.grid{display:grid;gap:25px}.grid-2{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.grid-4{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}@media (max-width: 768px){.header-content{flex-wrap:wrap;height:auto;padding:15px 0}.main-nav{order:3;width:100%;justify-content:center;margin-top:15px}.page-title{font-size:28px}.card{padding:20px}}