/* 基础样式：重置、设计变量、顶栏、按钮 */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --border: #e2e8f0;
  --primary: #6366f1;
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; height: 100vh; overflow: hidden; background: #f8fafc; }

/* 顶栏 */
.toolbar {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}
.toolbar-brand { font-weight: 700; font-size: 15px; color: #1e293b; text-decoration: none; display: flex; align-items: center; gap: 6px; }
.toolbar-brand span { font-size: 18px; }
.toolbar-actions { display: flex; gap: 8px; align-items: center; }

.btn { padding: 6px 16px; border-radius: 6px; border: 1px solid var(--border); background: #fff; font-size: 13px; font-weight: 500; cursor: pointer; transition: all 0.2s; }
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: #4f46e5; }
.btn-success { background: #10b981; color: #fff; border-color: #10b981; }
.btn-success:hover { background: #059669; }
.btn-mobile-only { display: none; }