:root{color:#1f2d29}*{box-sizing:border-box}html,body{margin:0;padding:0}body{min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:#fff}a{cursor:pointer;text-decoration:none}.portal-shell{min-height:100vh;display:flex;flex-direction:column;background:radial-gradient(circle at 8% -5%,rgba(24,160,88,.08),transparent 34%),radial-gradient(circle at 96% 4%,rgba(24,160,88,.06),transparent 30%),#fff}.nav{position:sticky;top:0;z-index:20;background:#ffffffdb;-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid #eef1f0}.nav-inner{max-width:1120px;margin:0 auto;height:62px;padding:0 22px;display:flex;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:800;color:#16342a;letter-spacing:.5px}.nav-links{display:flex;align-items:center;gap:8px}.nav-links a{display:inline-flex;align-items:center;gap:5px;padding:7px 13px;border-radius:8px;color:#4a5a54;font-size:14.5px;font-weight:600;transition:all .18s}.nav-links a:hover{background:#f0f8f3;color:#18a058}.nav-links a.on{background:#e8f6ee;color:#0c7a43}.portal-main{flex:1 1 auto;width:100%;max-width:1120px;margin:0 auto;padding:30px 22px 46px}.portal-footer{padding:22px;text-align:center;color:#8a978f;font-size:13px;border-top:1px solid #eef1f0}.portal-footer .dot{margin:0 8px}.fade-enter-active,.fade-leave-active{transition:opacity .18s ease}.fade-enter-from,.fade-leave-to{opacity:0}.section-title{margin:0 0 6px;font-size:15px;font-weight:800;color:#16342a}.muted{color:#6b7a73}.mono{font-family:Consolas,SFMono-Regular,monospace}@media (max-width: 640px){.nav-links a{padding:6px 9px;font-size:13px}.logo span{font-size:16px}.portal-main{padding:20px 14px 36px}}