:root{--blue:#1976b9;--blue-dark:#07588f;--blue-soft:#eaf5fc;--line:#d7e4ec;--text:#274253;--muted:#7890a0;--card:#fff;--shadow:0 4px 18px rgba(30,83,113,.10)}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;font:14px/1.45 Arial,"Segoe UI",sans-serif;color:var(--text);background:#edf4f8}.main-top-panel{height:72px;padding:0 30px;display:flex;align-items:center;justify-content:space-between;background:linear-gradient(90deg,#0a5f99,#1680c4);color:#fff;box-shadow:0 2px 10px #174a6826;position:relative;z-index:3}.brand,.profile,.login-top{display:flex;align-items:center;gap:12px}.brand strong,.login-top strong{display:block;font-size:17px;font-weight:600}.brand small,.profile small,.login-top small{display:block;color:#d7edf9}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border:2px solid #fff;border-radius:50%;font-size:16px;font-weight:800}.top-period{text-align:center}.top-period small{display:block;color:#cde8f7}.profile{min-width:250px;justify-content:flex-end}.profile a{margin-left:10px;padding:8px 12px;border-left:1px solid #ffffff47;color:#fff;text-decoration:none}.avatar{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#fff;color:var(--blue);font-weight:800}.workspace{min-height:calc(100vh - 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