:root{--primary-color: #1677ff;--primary-hover: #4096ff;--bg-color: #f0f2f5;--header-bg: #001529;--sider-bg: #ffffff;--text-color: rgba(0, 0, 0, .88);--text-secondary: rgba(0, 0, 0, .45);--border-color: #f0f0f0;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .03), 0 1px 6px -1px rgba(0, 0, 0, .02), 0 2px 4px 0 rgba(0, 0, 0, .02);--shadow-card: 0 1px 2px -2px rgba(0, 0, 0, .16), 0 3px 6px 0 rgba(0, 0, 0, .12), 0 5px 12px 4px rgba(0, 0, 0, .09);--transition-base: all .2s cubic-bezier(.645, .045, .355, 1)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol,"Noto Color Emoji";background-color:var(--bg-color);color:var(--text-color);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{height:100vh}.layout-root{display:flex;flex-direction:column;height:100vh;overflow:hidden}.layout-header{height:64px;display:flex;justify-content:space-between;align-items:center;padding:0 24px;background-color:var(--header-bg);color:#fff;box-shadow:0 2px 8px #00000026;z-index:10}.layout-header-left{display:flex;align-items:center}.layout-logo{font-size:20px;font-weight:700;background:linear-gradient(to right,#1677ff,#4096ff);-webkit-background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:.5px}.layout-header-right{display:flex;align-items:center;gap:16px;font-size:14px}.layout-user{opacity:.9}.layout-logout-btn{padding:6px 16px;border-radius:6px;border:1px solid rgba(255,255,255,.3);background:transparent;color:#fff;cursor:pointer;transition:var(--transition-base);font-size:14px}.layout-logout-btn:hover{border-color:#fff;background:#ffffff1a}.layout-main{flex:1;display:flex;min-height:0}.layout-sider{width:240px;background-color:var(--sider-bg);border-right:1px solid var(--border-color);display:flex;flex-direction:column;padding:16px 8px;box-sizing:border-box;transition:width .2s}.layout-menu-section{padding:12px 12px 8px;font-size:12px;color:var(--text-secondary);text-transform:uppercase;font-weight:600;letter-spacing:.5px}.menu-item{display:flex;align-items:center;height:40px;padding:0 12px;margin-bottom:4px;border-radius:6px;color:var(--text-color);text-decoration:none;font-size:14px;transition:var(--transition-base)}.menu-item:hover{background-color:#0000000a;color:var(--primary-color)}.menu-item.active{background-color:#e6f4ff;color:var(--primary-color);font-weight:500}.layout-content{flex:1;padding:24px;overflow-y:auto;overflow-x:hidden;background-color:var(--bg-color)}.login-page{max-width:400px;margin:100px auto;padding:40px;background-color:#fff;border-radius:12px;box-shadow:var(--shadow-card);text-align:left}.login-title{text-align:center;margin-bottom:32px;font-size:24px;color:#000;font-weight:600}.login-label{display:block;margin-bottom:24px;font-size:14px;color:var(--text-color)}.login-input{width:100%;box-sizing:border-box;margin-top:8px;padding:10px 12px;border:1px solid #d9d9d9;border-radius:6px;font-size:14px;transition:var(--transition-base);outline:none}.login-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 2px #1677ff33}.login-submit{width:100%;margin-top:8px;padding:12px 0;border-radius:6px;border:none;background-color:var(--primary-color);color:#fff;font-size:16px;font-weight:500;cursor:pointer;transition:var(--transition-base)}.login-submit:hover{background-color:var(--primary-hover);box-shadow:0 4px 12px #1677ff4d}.login-error{color:#ff4d4f;margin-bottom:16px;font-size:14px;background:#fff2f0;border:1px solid #ffccc7;padding:8px 12px;border-radius:6px}.login-tip{margin-top:24px;font-size:13px;color:var(--text-secondary);text-align:center;line-height:1.5}.sub-app-wrapper{padding:24px;background-color:#fff;border-radius:8px;box-shadow:var(--shadow-sm);min-height:calc(100vh - 120px)}.sub-app-desc{font-size:14px;color:var(--text-secondary);margin-bottom:16px}