/* ===== 迦迦随身工具箱 全局样式 - 绿色主题 ===== */
:root {
  --primary: #2E7D32;
  --primary-light: #4CAF50;
  --primary-lighter: #81C784;
  --primary-dark: #1B5E20;
  --bg: #FAFAFA;
  --card-bg: #FFFFFF;
  --text: #212121;
  --text-secondary: #757575;
  --border: #E0E0E0;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 16px rgba(46,125,50,0.15);
  --radius: 8px;
  --sidebar-w: 220px;
  --header-h: 60px;
}
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6;
}
a { text-decoration: none; color: inherit; }

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed; top:0; left:0; right:0; height: var(--header-h);
  background: #fff; box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  display: flex; align-items: center; padding: 0 20px; z-index: 1000;
}
.logo { font-size: 20px; font-weight: 700; color: var(--primary); white-space: nowrap; margin-right: 24px; display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo span { color: var(--primary-light); }
.logo-icon { flex-shrink: 0; filter: drop-shadow(0 1px 2px rgba(46,125,50,0.3)); }
.nav-links { display: flex; gap: 20px; align-items: center; margin-right: auto; }
.nav-links a { color: var(--text-secondary); font-size: 15px; transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.search-box { position: relative; width: 280px; }
.search-box input {
  width: 100%; padding: 8px 14px; border: 1px solid var(--border);
  border-radius: 20px; font-size: 14px; outline: none; transition: border .2s;
}
.search-box input:focus { border-color: var(--primary); }
.search-results {
  position: absolute; top: 100%; left:0; right:0; background:#fff;
  border-radius: var(--radius); box-shadow: var(--shadow-hover);
  max-height: 360px; overflow-y: auto; display: none; z-index: 1001; margin-top: 4px;
}
.search-results.show { display: block; }
.search-results a {
  display: block; padding: 10px 14px; font-size: 14px; border-bottom: 1px solid #f0f0f0;
}
.search-results a:hover { background: #E8F5E9; }
.search-results .sr-name { font-weight: 600; color: var(--text); }
.search-results .sr-cat { font-size: 12px; color: var(--text-secondary); }
.menu-toggle { display: none; background:none; border:none; font-size:24px; cursor:pointer; color:var(--primary); margin-right:12px; }

/* ===== 布局 ===== */
.layout { display: flex; margin-top: var(--header-h); min-height: calc(100vh - var(--header-h)); }

/* ===== 侧边栏 ===== */
.sidebar {
  width: var(--sidebar-w); background: #fff; border-right: 1px solid var(--border);
  position: fixed; top: var(--header-h); bottom: 0; overflow-y: auto;
  display: flex; flex-direction: column;
}
.sidebar-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px 10px; border-bottom: 1px solid var(--border-light);
  position: sticky; top: 0; background: #fff; z-index: 2;
}
.sidebar-header .sh-title { font-size: 14px; font-weight: 600; color: var(--text); }
.sidebar-count { font-size: 11px; background: var(--primary-bg); color: var(--primary); border-radius: 10px; padding: 2px 8px; font-weight: 600; }
.sidebar-tool-list { flex: 1; padding: 4px 0; }
.sidebar-tool-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 12px; font-size: 14px; color: var(--text);
  transition: all .15s; text-decoration: none; line-height: 1.4;
}
.sidebar-tool-item:hover { background: var(--primary-bg); color: var(--primary); }
.sidebar-tool-item.active { background: var(--primary-bg); color: var(--primary); font-weight: 600; border-right: 3px solid var(--primary); }
.sidebar-tool-item .sti-icon { font-size: 15px; width: 20px; text-align: center; flex-shrink: 0; }
.sidebar-tool-item .sti-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sidebar-no-result { padding: 30px 16px; text-align: center; color: var(--text-light); font-size: 13px; }
/* ===== 主内容区 ===== */
.main-content { flex: 1; margin-left: var(--sidebar-w); padding: 24px; }

/* ===== Hero区 ===== */
.hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
  color: #fff; text-align: center; padding: 60px 20px; border-radius: var(--radius);
  margin-bottom: 32px;
}
.hero h1 { font-size: 42px; margin-bottom: 12px; }
.hero .slogan { font-size: 18px; opacity: .9; margin-bottom: 24px; }
.hero .stats { display: flex; justify-content: center; gap: 40px; }
.hero .stat-item { text-align: center; }
.hero .stat-num { font-size: 32px; font-weight: 700; }
.hero .stat-label { font-size: 14px; opacity: .85; }

/* ===== 区块标题 ===== */
.section-title { font-size: 22px; font-weight: 700; margin-bottom: 16px; padding-left: 12px; border-left: 4px solid var(--primary); }

/* ===== 卡片网格 ===== */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-bottom: 32px; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }

/* ===== 分类卡片 ===== */
.cat-card {
  background: var(--card-bg); border-radius: var(--radius); padding: 24px 20px;
  text-align: center; box-shadow: var(--shadow); transition: all .25s; cursor: pointer;
  border: 1px solid transparent;
}
.cat-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary-lighter); transform: translateY(-2px); }
.cat-card .cat-icon { font-size: 36px; margin-bottom: 12px; }
.cat-card .cat-name { font-size: 16px; font-weight: 600; color: var(--primary); margin-bottom: 4px; }
.cat-card .cat-num { font-size: 13px; color: var(--text-secondary); }

/* ===== 工具卡片 ===== */
.tool-card {
  background: var(--card-bg); border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow); transition: all .25s; cursor: pointer;
  border: 1px solid transparent; display: block;
}
.tool-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary-lighter); transform: translateY(-2px); }
.tool-card .tc-icon {
  width: 44px; height: 44px; border-radius: 10px; background: #E8F5E9;
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  color: var(--primary); margin-bottom: 12px; font-weight: 700;
}
.tool-card .tc-name { font-size: 15px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.tool-card .tc-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.5; }

/* ===== 面包屑 ===== */
.breadcrumb { font-size: 14px; color: var(--text-secondary); margin-bottom: 20px; }
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 8px; }

/* ===== 工具详情页 ===== */
.tool-header { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.tool-header .th-icon {
  width: 56px; height: 56px; border-radius: 12px; background: #E8F5E9;
  display: flex; align-items: center; justify-content: center; font-size: 28px;
  color: var(--primary); font-weight: 700; flex-shrink: 0;
}
.tool-header h1 { font-size: 26px; margin-bottom: 4px; }
.tool-header .th-desc { color: var(--text-secondary); font-size: 14px; }
.tool-body {
  background: var(--card-bg); border-radius: var(--radius); padding: 32px;
  box-shadow: var(--shadow); min-height: 300px;
}
.tool-body .placeholder {
  text-align: center; padding: 60px 20px; color: var(--text-secondary);
}
.tool-body .placeholder .ph-icon { font-size: 48px; margin-bottom: 16px; }
.tool-body .placeholder h3 { font-size: 18px; margin-bottom: 8px; color: var(--text); }

/* ===== 表单控件 ===== */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border);
  border-radius: 6px; font-size: 14px; outline: none; transition: border .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary); }
.btn {
  display: inline-block; padding: 10px 24px; background: var(--primary);
  color: #fff; border: none; border-radius: 6px; font-size: 14px;
  cursor: pointer; transition: background .2s;
}
.btn:hover { background: var(--primary-dark); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: #E8F5E9; }

/* ===== 结果区 ===== */
.result-box {
  background: #F5F5F5; border-radius: 6px; padding: 16px; margin-top: 16px;
  min-height: 60px; font-size: 14px; white-space: pre-wrap; word-break: break-all;
}

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 30px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: 10px 24px;
  border-radius: 24px; font-size: 14px; z-index: 9999;
  opacity: 0; transition: opacity .3s; pointer-events: none;
}
.toast.show { opacity: 1; }

/* ===== 页脚 ===== */
.site-footer {
  background: #1B5E20; color: #A5D6A7; text-align: center;
  padding: 32px 20px; font-size: 14px; margin-top: 40px;
}
.site-footer a { color: #C8E6C9; margin: 0 8px; }
.site-footer a:hover { color: #fff; }
.site-footer .copyright { margin-top: 12px; font-size: 13px; opacity: .7; }

/* ===== 分类过滤标签 ===== */
.cat-filter-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.cat-filter-bar a {
  padding: 6px 16px; border-radius: 20px; background: #fff;
  border: 1px solid var(--border); font-size: 13px; transition: all .2s;
}
.cat-filter-bar a:hover, .cat-filter-bar a.active {
  background: var(--primary); color: #fff; border-color: var(--primary);
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%); transition: transform .3s; z-index: 999;
    top: var(--header-h);
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; padding: 16px; }
  .menu-toggle { display: block; }
  .search-box { width: 160px; }
  .nav-links { display: none; }
  .hero h1 { font-size: 28px; }
  .hero .stats { gap: 20px; }
  .hero .stat-num { font-size: 24px; }
  .card-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
}
@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
}