:root {
  --primary: #0a66ff;
  --primary-hover: #004ecc;
  --primary-light: #e6f0ff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif; background-color: var(--bg-color); color: var(--text-main); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: color 0.2s; }

/* 导航栏 */
.header { position: sticky; top: 0; z-index: 1000; display: flex; justify-content: space-between; align-items: center; height: 72px; padding: 0 24px; background: rgba(255, 255, 255, 0.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(0,0,0,0.05); }
.logo { display: flex; align-items: center; gap: 12px; }
.logo img { width: 36px; height: 36px; border-radius: 10px; box-shadow: var(--shadow-sm); }
.logo-text h1 { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; color: #111; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { color: var(--text-muted); font-size: 15px; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.btn-header { background: var(--text-main); color: #fff; padding: 9px 20px; border-radius: 8px; font-size: 14px; font-weight: 500; transition: background 0.2s; }
.btn-header:hover { background: #000; }
.menu-toggle { display: none; font-size: 24px; cursor: pointer; color: var(--text-main); }

/* 按钮体系 */
.btn-primary { display: inline-block; text-align: center; background: var(--primary); color: #fff; padding: 12px 24px; border-radius: 8px; font-size: 15px; font-weight: 600; border: none; cursor: pointer; transition: all 0.2s ease; box-shadow: 0 4px 12px rgba(10, 102, 255, 0.2); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(10, 102, 255, 0.3); }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); padding: 12px 24px; border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; }

/* 卡片与表单 */
.card { background: var(--card-bg); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-md); border: 1px solid rgba(0,0,0,0.02); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 8px; color: var(--text-main); }
input { width: 100%; padding: 14px 16px; border: 1px solid var(--border-color); border-radius: 8px; font-size: 15px; outline: none; background: #f9fafb; transition: all 0.2s; }
input:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px var(--primary-light); }

/* 商户中心 */
.dashboard { display: flex; max-width: 1200px; margin: 30px auto; background: var(--card-bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid var(--border-color); min-height: calc(100vh - 140px); }
.sidebar { width: 260px; background: #f8fafc; border-right: 1px solid var(--border-color); padding: 24px 16px; flex-shrink: 0; }
.menu-title { font-size: 12px; font-weight: 600; color: #9ca3af; text-transform: uppercase; letter-spacing: 0.5px; padding: 12px; margin-top: 12px; }
.menu-item { padding: 12px 16px; font-size: 14px; font-weight: 500; cursor: pointer; color: var(--text-muted); border-radius: 8px; transition: all 0.2s; margin-bottom: 4px; }
.menu-item:hover { background: #e2e8f0; color: var(--text-main); }
.menu-item.active { background: var(--primary-light); color: var(--primary); }
.main-content { flex: 1; padding: 40px; overflow-y: auto; }

/* 文档代码块 */
pre { background: #1e293b; color: #e2e8f0; padding: 20px; border-radius: 8px; overflow-x: auto; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 14px; line-height: 1.5; margin: 20px 0; }

/* 移动端适配 */
@media (max-width: 768px) {
  .nav-links, .btn-header { display: none; }
  .menu-toggle { display: block; }
  .header { padding: 0 16px; }
  
  
  .dashboard { flex-direction: column; margin: 0; border-radius: 0; border: none; min-height: 100vh; }
  .sidebar { position: fixed; left: -300px; top: 0; bottom: 0; width: 260px; z-index: 1000; transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1); box-shadow: 2px 0 20px rgba(0,0,0,0.1); background: #fff; }
  .sidebar.open { left: 0; }
  .main-content { padding: 24px 16px; }
  .mobile-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
  .overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); backdrop-filter: blur(4px); z-index: 999; opacity: 0; transition: opacity 0.3s; }
  .overlay.show { display: block; opacity: 1; }
  .card { padding: 24px; }
}
@media (min-width: 769px) {
  .mobile-header, .overlay { display: none; }
}

/* 覆盖之前的抽屉卡片，改为全屏下拉 */
@media (max-width: 768px) {
  
  
}


@media (max-width: 768px) {
  .nav-links, .btn-header { display: none; }
  .menu-toggle { display: block; cursor: pointer; padding: 8px; }
  .header { padding: 0 16px; position: sticky; top: 0; z-index: 1000; background: #fff; }
  
  /* 全屏下拉菜单，纯白背景，绝对不透明 */
  .nav-links.mobile-show {
    display: flex !important;
    flex-direction: column;
    position: fixed !important;
    top: 64px !important;  /* 紧贴头部 */
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: #ffffff !important;
    z-index: 9999 !important;
    padding: 20px 24px !important;
    margin: 0 !important;
    border-top: 1px solid #eee;
    box-sizing: border-box;
  }
  
  .nav-links.mobile-show a {
    display: block;
    width: 100%;
    font-size: 18px !important;
    padding: 20px 0 !important;
    border-bottom: 1px solid #f0f0f0 !important;
    color: #333 !important;
    text-align: left !important;
    background: transparent !important;
  }
}