/* ═══ 布局骨架：全局 reset / 顶栏 / 作战环境栏 / 三栏布局 / 侧边栏 / 主区 / 输出面板 ═══ */

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'LXGW WenKai Screen', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif; background: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column; overflow: hidden; font-size: 13px; transition: background 0.25s, color 0.25s; }

/* Header */
header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 12px 24px; display: flex; align-items: center; gap: 12px; position: sticky; top: 0; z-index: 100; transition: background 0.25s, border-color 0.25s; }
header h1 { font-size: 16px; font-weight: 700; letter-spacing: -0.3px; }
header .tag { font-size: 10px; background: var(--surface3); color: var(--text-dim); padding: 2px 8px; border-radius: 10px; border: 1px solid var(--border); transition: background 0.25s, border-color 0.25s; }
.warning-banner { background: color-mix(in srgb, var(--danger) 9%, transparent); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent); color: var(--warn-text); padding: 8px 24px; font-size: 12px; display: flex; align-items: center; gap: 8px; }

/* Theme toggle & Favorites */
.theme-toggle,
.fav-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 10px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-dim);
  font-size: 12px;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.theme-toggle .icon { font-size: 14px; transition: transform 0.3s; }
.theme-toggle:hover .icon { transform: rotate(20deg); }
.theme-toggle { margin-left: 0; }
.fav-badge { background: var(--accent3); color: var(--on-accent3); border-radius: 9px; font-size: 10px; padding: 0 6px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; min-width: 16px; }

/* Layout */
.layout { display: grid; grid-template-columns: minmax(190px, 15%) 1fr minmax(300px, 25%); flex: 1; min-height: 0; }

/* Sidebar */
.sidebar { background: var(--surface); border-right: 1px solid var(--border); overflow-y: auto; padding: 8px; transition: background 0.25s, border-color 0.25s; }
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 2px; }
.cat-title { font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-muted); padding: 14px 10px 6px; }
/* 侧边栏分层折叠结构 */
.side-section-head { display: flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; color: var(--text); padding: 10px 10px 4px; cursor: pointer; user-select: none; border-radius: 6px; }
.side-section-head:hover { color: var(--accent); }
.side-cat-head { display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--accent); padding: 6px 8px; margin-top: 1px; cursor: pointer; user-select: none; border-radius: 6px; }
.side-cat-head:hover { background: var(--surface2); }
.side-cat-head .cnt { margin-left: auto; font-size: 9px; background: var(--surface3); color: var(--text-muted); padding: 1px 5px; border-radius: 8px; }
.side-tools { padding-left: 14px; }
.collapsed { display: none !important; }
.arr { margin-left: auto; font-size: 9px; color: var(--text-dim); transition: transform 0.15s; }
.side-cat-head .arr { margin-left: 0; }
.arr.open { transform: rotate(90deg); }
.tool-btn { width: 100%; text-align: left; padding: 7px 10px; margin: 1px 0; background: transparent; border: 1px solid transparent; border-radius: 6px; color: var(--text-dim); font-size: 12px; cursor: pointer; display: flex; align-items: center; gap: 8px; transition: all 0.12s; }
.tool-btn:hover { background: var(--surface2); border-color: var(--border); color: var(--text); }
.tool-btn.active { background: color-mix(in srgb, var(--accent) 13%, transparent); border-color: color-mix(in srgb, var(--accent) 42%, transparent); color: var(--accent); }
.tool-btn .icon { font-size: 14px; width: 18px; text-align: center; flex-shrink: 0; }
.tool-btn .badge { margin-left: auto; font-size: 9px; background: var(--surface3); color: var(--text-muted); padding: 1px 5px; border-radius: 8px; transition: background 0.25s; }

/* Main area */
.main { overflow-y: auto; padding: 20px 24px; }
.main::-webkit-scrollbar { width: 6px; }
.main::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

.panel-title { font-size: 18px; font-weight: 700; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.panel-desc { color: var(--text-dim); font-size: 12px; margin-bottom: 20px; line-height: 1.6; }
.panel-desc code { background: var(--surface3); padding: 1px 5px; border-radius: 4px; font-size: 11px; color: var(--accent3); transition: background 0.25s; }

/* Output panel */
.output-panel { background: var(--surface); border-left: 1px solid var(--border); display: flex; flex-direction: column; overflow: hidden; transition: background 0.25s, border-color 0.25s; }
.output-header { padding: 14px 16px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; transition: border-color 0.25s; }
.output-header h2 { font-size: 13px; font-weight: 700; }
.output-actions { display: flex; gap: 6px; }
.output-body { flex: 1; overflow-y: auto; padding: 14px; }
.output-body::-webkit-scrollbar { width: 4px; }
.output-body::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 2px; }

.placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; color: var(--text-muted); text-align: center; gap: 12px; }
.placeholder .icon { font-size: 40px; opacity: 0.3; }
.placeholder p { font-size: 12px; max-width: 260px; line-height: 1.6; }

/* ── 作战环境栏 ── */
.env-bar { display: flex; align-items: center; gap: 10px 14px; padding: 6px 16px; background: var(--surface); border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text-dim); flex-wrap: wrap; flex-shrink: 0; transition: background 0.25s, border-color 0.25s; }
.env-title { font-weight: 700; color: var(--accent); white-space: nowrap; }
.env-bar label { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.env-bar input { width: 170px; padding: 3px 8px; font-size: 12px; margin: 0; }
.env-bar #envTarget { width: 220px; }
.env-tag { font-size: 10px; border: 1px solid var(--border); color: var(--accent); padding: 1px 7px; border-radius: 10px; white-space: nowrap; }
.env-warn { margin-top: 4px; font-size: 11px; color: var(--danger, #e06c75); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.env-warn select { width: auto; font-size: 11px; padding: 2px 6px; }

/* 比例布局：minmax 下限已覆盖中等窗口，仅窄屏时改为单列堆叠（body 恢复文档流滚动） */
@media (max-width: 800px) { body { height: auto; overflow: auto; display: block; } .layout { grid-template-columns: 1fr; } .sidebar { max-height: 180px; } .output-panel { min-height: 400px; } }