.app-shell { min-height: 100vh; display: grid; grid-template-columns: 88px 1fr; }

/* SVG 图标样式 */
.icon {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 18px 14px;
  border-right: 1px solid var(--border);
  background: rgba(255,255,255,0.78); backdrop-filter: blur(16px);
  display: flex; flex-direction: column; align-items: center; z-index: 20;
}
.logo {
  width: 46px; height: 46px; border-radius: 16px; overflow: hidden;
  box-shadow: 0 12px 22px rgba(37,99,235,0.22); margin-bottom: 56px;
  background: transparent;
}
.logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.nav-list { display: flex; flex-direction: column; gap: 16px; width: 100%; align-items: center; }
.nav-btn {
  width: 54px; height: 54px; border: none; border-radius: 18px; background: transparent;
  color: var(--text-sub); font-size: 21px; transition: 0.2s; position: relative;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  text-decoration: none;
}
.nav-btn:hover { background: #f1f3f7; color: var(--text-main); }
.nav-btn.active { background: var(--primary); color: #fff; box-shadow: 0 12px 24px rgba(37,99,235,0.28); }
.nav-btn::after {
  content: attr(data-title); position: absolute; left: 66px; top: 50%;
  transform: translateY(-50%); white-space: nowrap; background: #111827; color: #fff;
  padding: 6px 10px; border-radius: 8px; font-size: 12px; opacity: 0;
  pointer-events: none; transition: 0.15s; z-index: 99;
}
.nav-btn:hover::after { opacity: 1; }
.sidebar-bottom { margin-top: auto; display: flex; flex-direction: column; gap: 12px; align-items: center; }
.status-dots { display: flex; align-items: center; gap: 5px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--border); transition: all 0.3s; }
.dot.ok { background: var(--green); box-shadow: 0 0 0 3px rgba(16,163,74,0.2); }
.dot.err { background: var(--red); box-shadow: 0 0 0 3px rgba(220,38,38,0.2); }
.main { padding: 36px 36px 42px; min-width: 0; overflow-y: auto; height: 100vh; }
.view { display: none; animation: fadeUp 0.22s ease; }
.view.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.page-banner { margin-bottom: 28px; padding: 8px 2px 18px; border-bottom: 1px solid rgba(230,232,239,0.9); }
.page-banner-kicker { color: var(--primary); font-size: 13px; font-weight: 900; letter-spacing: 0.02em; margin-bottom: 10px; }
.page-banner-title { font-size: 32px; line-height: 1.18; letter-spacing: -0.05em; font-weight: 900; margin: 0 0 10px; }
.page-banner-desc { color: var(--text-sub); font-size: 15px; line-height: 1.8; margin: 0; }