:root{--primary:#1890ff;--primary-dark:#096dd9;--primary-light:#40a9ff;--gradient:linear-gradient(135deg,#1890ff,#36cfc9);--gradient-dark:linear-gradient(135deg,#096dd9,#08979c)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:#f0f2f5;color:#333;-webkit-font-smoothing:antialiased}#app{min-height:100vh;display:flex;flex-direction:column}.app-header{background:linear-gradient(135deg,#001529,#003a70 50%,#001529);box-shadow:0 2px 20px rgba(0,0,0,.15);position:sticky;top:0;z-index:1000}.header-inner{max-width:1400px;margin:0 auto;padding:0 32px;height:64px}.header-inner,.logo-section{display:flex;align-items:center}.logo-section{gap:10px;cursor:pointer;margin-right:48px}.logo-text{font-size:22px;font-weight:800;color:#fff;letter-spacing:2px;background:linear-gradient(135deg,#40a9ff,#36cfc9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav-links{display:flex;gap:8px;flex:1}.nav-item{color:hsla(0,0%,100%,.75);text-decoration:none;padding:8px 20px;border-radius:8px;font-size:15px;font-weight:500;transition:all .3s}.nav-item.router-link-active,.nav-item:hover{color:#fff;background:hsla(0,0%,100%,.12)}.user-section{gap:12px}.user-avatar,.user-section{display:flex;align-items:center}.user-avatar{gap:8px;color:#fff;cursor:pointer;padding:4px 12px 4px 4px;border-radius:24px;transition:background .3s}.user-avatar:hover{background:hsla(0,0%,100%,.1)}.username{font-size:14px}.app-main{flex:1;width:100%}.app-footer{background:linear-gradient(135deg,#001529,#002140);color:hsla(0,0%,100%,.65);margin-top:60px}.footer-inner{max-width:1400px;margin:0 auto;display:flex;gap:60px;padding:48px 32px 32px}.footer-col{flex:1}.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px}.footer-col a,.footer-col p{display:block;color:hsla(0,0%,100%,.5);text-decoration:none;font-size:13px;line-height:2}.footer-col a:hover{color:var(--primary-light)}.footer-bottom{text-align:center;padding:20px;font-size:12px;border-top:1px solid hsla(0,0%,100%,.08)}