:root {
  --bg-main: #f6f3e6;
  --bg-panel: rgba(255, 251, 241, 0.92);
  --bg-panel-strong: #fffdf5;
  --bg-accent: linear-gradient(135deg, #9fd37d 0%, #76bf78 45%, #f6d58d 100%);
  --line-soft: rgba(117, 136, 92, 0.16);
  --line-strong: rgba(100, 120, 74, 0.26);
  --text-main: #5a4a31;
  --text-subtle: #7b6c50;
  --shadow-soft: 0 18px 36px rgba(124, 110, 72, 0.14);
  --shadow-card: 0 10px 20px rgba(120, 102, 64, 0.12);
  --success: #4b9c61;
  --warning: #ca8a37;
  --danger: #ce7362;
  --info: #5d92c9;
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

body {
  background:
    radial-gradient(circle at 12% 8%, rgba(162, 214, 125, 0.24), transparent 20%),
    radial-gradient(circle at 86% 12%, rgba(255, 222, 164, 0.3), transparent 18%),
    radial-gradient(circle at 50% 100%, rgba(142, 196, 131, 0.2), transparent 24%),
    linear-gradient(180deg, #fbf7ea 0%, #f6f0df 48%, #eef7e6 100%);
  color: var(--text-main);
  font-family:
    "Avenir Next", "Trebuchet MS", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    sans-serif;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior-y: contain;
}

button,
input,
select,
textarea {
  touch-action: manipulation;
}

.app-frame {
  min-height: 100vh;
  padding: 20px;
}

.shell-header,
.topbar,
.main-content {
  background: var(--bg-panel);
  border: 2px solid rgba(120, 137, 87, 0.18);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
}

.shell-header {
  padding: 16px 18px 18px;
  margin-bottom: 16px;
}

.shell-brand {
  margin-bottom: 14px;
}

.nav-menu-top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
}

.shell-note {
  margin-top: 14px;
}

.topbar {
  min-height: 112px;
  margin-bottom: 16px;
  padding: 18px 22px;
  position: relative;
  overflow: hidden;
}

.topbar::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 34%),
    repeating-linear-gradient(90deg, rgba(128, 166, 97, 0.04) 0 14px, transparent 14px 28px);
  pointer-events: none;
}

.layout-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  align-items: start;
}

.main-content {
  min-height: calc(100vh - 280px);
  padding: 22px;
}

@media (max-width: 1100px) {
  .layout-body {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 760px) {
  .app-frame {
    padding: 12px;
  }

  .shell-header,
  .topbar,
  .main-content {
    padding: 14px;
    border-radius: 22px;
  }

  .topbar {
    min-height: auto;
  }

  .nav-menu-top {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .nav-menu-top::-webkit-scrollbar {
    height: 6px;
  }

  .nav-menu-top::-webkit-scrollbar-thumb {
    background: rgba(125, 138, 91, 0.26);
    border-radius: 999px;
  }
}