.sidebar-drawer {
  position: fixed;
  top: 0;
  left: -260px;
  width: 240px;
  height: 100%;
  background: #18191c!important;
  color: #fff;
  box-shadow: 2px 0 12px rgba(0, 0, 0, 0.25);
  z-index: 3000;
  transition: left 0.3s;
  padding-top: 60px;

  border-right: 1px solid rgba(180, 190, 210, 0.28); /* 细且有质感的分割线 */
  box-shadow: 2px 0 8px rgba(30, 40, 60, 0.06); /* 可选：增加立体感 */
}
.sidebar-drawer.active {
  left: 0;
}
.sidebar-content ul {
  list-style: none;
  padding: 0 20px;
}
.sidebar-content li {
  padding: 18px 0;
  border-bottom: none;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-content li a {
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
}
.sidebar-content .sidebar-icon {
  width: 20px;
  height: 20px;
  display: inline-block;
  margin-right: 6px;
}
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 2999;
}
.sidebar-overlay.active {
  display: block;
}

.custom-topbar {
  width: 100%;
  background: #1a2746; /* 深蓝色冷色调 */
  /* border-bottom: 0.25px solid #fff; */
  box-shadow: 0 1px 6px rgba(30, 60, 120, 0.08);
  position: relative;
  z-index: 2000;
}

.modern-header {
  background-color: #121212;
  padding: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1000;
}
 /* 顶部三条杠弹出层结构 */
 .custom-topbar {
  position: relative;
  z-index: 2101;
}
.custom-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 260px;
  background: #181a1b;
  box-shadow: 6px 0 24px 0 rgba(0,0,0,0.45);
  z-index: 2000;
  transform: translateX(-100%);
  transition: transform 0.3s cubic-bezier(.4,0,.2,1);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}
.custom-sidebar.active { transform: translateX(0) !important; display: flex !important; }
.custom-sidebar::after { content: ''; position: absolute; top: 0; right: 0; width: 1px; height: 100%; background: linear-gradient(180deg, #bfc6d1 0%, #e6e8ea 50%, #bfc6d1 100%); box-shadow: 1px 0 4px 0 rgba(255,255,255,0.10); border-radius: 0 2px 2px 0; pointer-events: none; }
.sidebar-content { padding: 40px 0 0 0; display: flex; flex-direction: column; gap: 10px; align-items: center; }
.sidebar-link { color: #eaeaea; font-size: 15px; padding: 10px 24px 10px 18px; text-decoration: none; font-weight: 500; letter-spacing: 0.5px; border-radius: 0 16px 16px 0; transition: background 0.2s, color 0.2s; display: flex; align-items: center; justify-content: center; width: 100%; }
.sidebar-link .sidebar-icon { margin-right: 10px; font-size: 16px; color: #4fc3f7; min-width: 18px; text-align: center; }
.sidebar-link:hover { background: rgba(79,195,247,0.08); color: #4fc3f7; }
.sidebar-link:hover .sidebar-icon { color: #81d4fa; }
.sidebar-overlay { display: none; position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0,0,0,0.35); z-index: 1999; transition: opacity 0.3s; }
.sidebar-overlay.active { display: block; }
@media (max-width: 600px) { .custom-sidebar { width: 80vw; min-width: 0; max-width: 320px; } .sidebar-content { padding-top: 24px; } .sidebar-link { font-size: 13px; padding: 10px 12px 10px 14px; } .sidebar-link .sidebar-icon { font-size: 15px; margin-right: 8px; } }