:root{--bg:#f6f7f9;--panel:#fff;--ink:#17202e;--muted:#7b8494;--line:#e7eaf0;--brand:#625bf6;--brand-soft:#efeeff;--hover:#f0f1f5;--pressed:#e5e7ee;--green:#1b9a69;--red:#d95959}.dark{--bg:#11141b;--panel:#191d26;--ink:#edf0f6;--muted:#aeb7c6;--line:#343c4b;--brand-soft:#272442;--hover:#252b38;--pressed:#303848;color:var(--ink)}.dark .sidebar,.dark .topbar{background:#151820}.dark .nav-label{color:#c2cad7}.dark .ghost,.dark .search,.dark .select{color:var(--ink);background:var(--panel)}.dark .table th{color:#b9c2d1;background:#1d222c}.dark .activity,.dark .table td,.dark .table th{border-color:#3a4352}.dark .table td{color:#d7deea}.dark .profile b{color:var(--ink)}.dark .login-card{background:var(--panel)}.dark .field label{color:#bbc2cf}.dark .field input{color:var(--ink);background:#11141b}.dark .login-note{color:#aeb7c6!important}.dark .demo-banner{border-color:#65551f;background:#2b2615;color:#e6c96e}.dark .tag{color:#72d6ab;background:#173a2b}.dark .tag.warn{color:#e7bd5c;background:#3b3018}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.app{display:flex;min-height:100vh;background:var(--bg)}.sidebar{width:252px;border-right:1px solid var(--line);background:#fbfbfc;padding:28px 16px;display:flex;flex-direction:column;gap:28px}.brand{display:flex;gap:11px;align-items:center;padding:0 12px;font-weight:700;letter-spacing:-.03em}.brand-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:10px;color:#fff;background:linear-gradient(145deg,#8078ff,#5148df);box-shadow:0 7px 16px #625bf633}.brand-mark 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