:root{--icarus-bg:#f4f6f8;--icarus-panel:#fff;--icarus-text:#182230;--icarus-muted:#667085;--icarus-line:#dfe4ea;--icarus-blue:#1769aa;--icarus-blue-soft:#edf6fc}body{color:var(--icarus-text);background:var(--icarus-bg);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif}.topbar{position:sticky;top:0;z-index:30;border-bottom:1px solid var(--icarus-line);background:#ffffffed;backdrop-filter:blur(12px)}.topbar-inner{display:flex;align-items:center;width:min(1180px,calc(100% - 32px));height:64px;margin:auto}.topbar .brand{display:flex;align-items:center;gap:10px;margin-right:36px;color:inherit;text-decoration:none}.topbar .brand>span{display:grid;width:34px;height:34px;place-items:center;border-radius:5px;color:#fff;background:var(--icarus-blue);font-size:19px;font-weight:800;box-shadow:none}.topbar .brand strong{line-height:1.15}.topbar .brand small{display:block;margin-top:1px;color:var(--icarus-muted);font-size:10px;font-weight:500;letter-spacing:0}.topbar nav{display:flex;align-self:stretch;gap:4px}.topbar nav a,.topbar nav button{display:flex;align-items:center;padding:0 13px;border:0;color:#475467;background:transparent;font:inherit;text-decoration:none;cursor:pointer}.topbar nav .active,.topbar nav a:hover,.topbar nav button:hover{color:var(--icarus-blue)}.topbar nav .active{box-shadow:inset 0 -2px var(--icarus-blue);font-weight:700}.top-actions{display:flex;align-items:center;gap:8px;margin-left:auto}.shell-action{display:inline-flex;min-height:36px;align-items:center;padding:7px 13px;border:1px solid var(--icarus-blue);border-radius:5px;color:#fff;background:var(--icarus-blue);font-weight:700;text-decoration:none}.site-frame{width:min(1180px,calc(100% - 32px));margin:20px auto 72px}.site-notice{padding:10px 14px;border:1px solid #c9dceb;border-left:3px solid var(--icarus-blue);border-radius:5px;color:#475467;background:var(--icarus-blue-soft)}@media(max-width:760px){.topbar-inner{height:auto;min-height:60px;flex-wrap:wrap;padding:10px 0}.topbar .brand{margin-right:auto}.topbar nav{order:3;width:100%;height:38px;overflow-x:auto}.topbar nav a,.topbar nav button{flex:none;padding:0 10px}.shell-action{display:none}}