:root{--sidebar-w:260px;--sidebar-bg:#111113;--sidebar-header-bg:#0d0d0f;--sidebar-border:#ffffff14;--sidebar-text:#9ca3af;--sidebar-text-hover:#f3f4f6;--sidebar-text-muted:#4b5563;--sidebar-active-text:#fff;--sidebar-active-bg:#3b82f61f;--sidebar-active-border:#3b82f6;--content-bg:#fff;--surface:#fff;--surface-subtle:#f9fafb;--text-main:#111827;--text-secondary:#4b5563;--text-muted:#9ca3af;--border-light:#e5e7eb;--border-strong:#d1d5db;--accent-blue:#2563eb;--accent-blue-soft:#eff6ff}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--content-bg);height:100%;color:var(--text-main);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,sans-serif}a{color:inherit;text-decoration:none}.app-layout{width:100%;min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--sidebar-bg);height:100vh;color:var(--sidebar-text);border-right:1px solid var(--sidebar-border);z-index:100;-webkit-user-select:none;user-select:none;flex-direction:column;display:flex;position:fixed;top:0;left:0}.sidebar-header{border-bottom:1px solid var(--sidebar-border);background:var(--sidebar-header-bg);padding:18px 16px}.sidebar-brand{align-items:center;gap:10px;display:flex}.brand-icon{color:#38bdf8;background:linear-gradient(135deg,#1e293b,#0f172a);border:1px solid #ffffff26;border-radius:6px;justify-content:center;align-items:center;width:28px;height:28px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;font-weight:700;display:flex;box-shadow:0 2px 6px #0006}.brand-info{flex-direction:column;display:flex}.brand-title{color:#fff;letter-spacing:-.01em;font-size:14px;font-weight:700;line-height:1.2}.brand-subtitle{color:#6b7280;margin-top:2px;font-size:11px}.sidebar-search-box{padding:12px 14px 4px}.search-mock{color:#6b7280;cursor:pointer;background:#ffffff0a;border:1px solid #ffffff0f;border-radius:6px;align-items:center;gap:8px;padding:7px 10px;font-size:12px;transition:all .15s;display:flex}.search-mock:hover{color:#9ca3af;background:#ffffff12;border-color:#ffffff1f}.search-mock kbd{color:#9ca3af;background:#ffffff14;border-radius:4px;margin-left:auto;padding:1px 4px;font-family:ui-monospace,SFMono-Regular,monospace;font-size:10px}.sidebar-nav{flex:1;padding:10px;overflow-y:auto}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:2px}.nav-group{margin-bottom:16px}.nav-group-header{justify-content:space-between;align-items:center;padding:6px 8px 4px;display:flex}.nav-group-label{text-transform:uppercase;letter-spacing:.06em;color:#4b5563;font-size:11px;font-weight:700}.nav-group-count{color:#374151;background:#ffffff0a;border-radius:4px;padding:1px 5px;font-family:ui-monospace,monospace;font-size:10px}.nav-group-items{flex-direction:column;gap:2px;margin-top:2px;display:flex}.nav-item{color:var(--sidebar-text);border-radius:6px;align-items:center;gap:8px;padding:7px 10px;font-size:13px;line-height:1.4;transition:all .12s;display:flex;position:relative}.nav-item-root{color:#d1d5db;margin-bottom:4px;font-weight:600}.nav-bullet{color:#4b5563;font-size:14px;line-height:1}.nav-label{white-space:nowrap;text-overflow:ellipsis;flex:1;overflow:hidden}.nav-item:hover:not(.upcoming){color:var(--sidebar-text-hover);background:#ffffff0d}.nav-item.active{color:var(--sidebar-active-text);background:var(--sidebar-active-bg);font-weight:600}.nav-item.active:before{content:"";background:var(--sidebar-active-border);border-radius:0 2px 2px 0;width:3px;position:absolute;top:6px;bottom:6px;left:0}.nav-item.active .nav-bullet{color:var(--sidebar-active-border)}.nav-item.upcoming{color:#4b5563;cursor:default}.nav-item.upcoming .nav-bullet{color:#27272a}.badge-soon{color:#6b7280;letter-spacing:.02em;background:#ffffff0a;border:1px solid #ffffff0f;border-radius:4px;padding:1px 5px;font-size:10px;font-weight:500}.sidebar-footer{border-top:1px solid var(--sidebar-border);color:#6b7280;background:var(--sidebar-header-bg);justify-content:space-between;align-items:center;padding:12px 14px;font-size:11px;display:flex}.footer-status{align-items:center;gap:6px;display:flex}.status-dot{background:#10b981;border-radius:50%;width:6px;height:6px;box-shadow:0 0 6px #10b98199}.footer-ver{color:#4b5563;font-family:ui-monospace,monospace}.menu-toggle{z-index:200;border:1px solid var(--sidebar-border);background:var(--sidebar-bg);color:#fff;cursor:pointer;border-radius:6px;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;display:none;position:fixed;top:12px;left:12px}.sidebar-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:90;background:#0009;display:none;position:fixed;inset:0}.content-area{margin-left:var(--sidebar-w);background:var(--content-bg);flex-direction:column;flex:1;min-height:100vh;display:flex}.content-iframe{background:#fff;border:none;width:100%;height:100vh;display:block}.dashboard-container{width:100%;max-width:960px;margin:0 auto;padding:40px 48px 80px}.dashboard-header{margin-bottom:32px}.dashboard-eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--accent-blue);margin-bottom:6px;font-size:12px;font-weight:700}.dashboard-title{letter-spacing:-.03em;color:var(--text-main);font-size:28px;font-weight:800;line-height:1.2}.dashboard-subtitle{color:var(--text-secondary);margin-top:6px;font-size:14px}.stats-grid{grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:36px;display:grid}.stat-item{background:var(--surface);border:1px solid var(--border-light);border-radius:10px;padding:16px 18px;transition:all .15s}.stat-item.active{background:#f8faff;border-color:#bfdbfe;box-shadow:0 1px 3px #2563eb0f}.stat-item-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:12px;font-weight:600;display:flex}.stat-item-value{letter-spacing:-.03em;color:var(--text-main);font-size:26px;font-weight:800}.stat-item-desc{color:var(--text-muted);margin-top:4px;font-size:11px}.dash-section-head{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.dash-section-title{color:var(--text-main);letter-spacing:-.01em;font-size:15px;font-weight:700}.dash-section-tag{color:var(--text-muted);font-size:12px}.topic-cards-list{flex-direction:column;gap:12px;display:flex}.topic-card{background:var(--surface);border:1px solid var(--border-light);border-radius:10px;flex-direction:column;padding:20px 22px;transition:all .15s;display:flex}.topic-card:hover{border-color:#93c5fd;transform:translateY(-1px);box-shadow:0 4px 14px #0000000a}.topic-card-top{align-items:center;gap:8px;margin-bottom:8px;display:flex}.tag-badge{background:var(--accent-blue-soft);color:var(--accent-blue);border-radius:4px;padding:2px 7px;font-size:11px;font-weight:600}.tag-sub{color:var(--text-muted);font-size:11px}.topic-card-title{color:var(--text-main);letter-spacing:-.02em;margin-bottom:8px;font-size:17px;font-weight:700;line-height:1.35}.topic-card-desc{color:var(--text-secondary);font-size:13px;line-height:1.6}.topic-card-footer{color:var(--text-muted);border-top:1px solid #f3f4f6;justify-content:space-between;align-items:center;margin-top:14px;padding-top:12px;font-size:12px;display:flex}.topic-card-action{color:var(--accent-blue);font-weight:600}@media (max-width:860px){.menu-toggle{display:flex}.sidebar{transition:transform .25s cubic-bezier(.16,1,.3,1);transform:translate(-100%)}.sidebar.open{transform:translate(0);box-shadow:10px 0 30px #00000080}.sidebar-overlay.open{display:block}.content-area{margin-left:0}.dashboard-container{padding:60px 20px}.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.stats-grid{grid-template-columns:1fr}}