/* ToolBox 共享样式 - 适配所有工具页面 */
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --primary:#667eea;
  --primary-dark:#764ba2;
  --bg:#f5f7fa;
  --card-bg:#fff;
  --border:#e8ecf1;
  --text:#333;
  --text-light:#666;
  --text-muted:#999;
  --success:#4caf50;
  --danger:#f44336;
  --shadow:0 2px 8px rgba(0,0,0,0.04);
  --shadow-hover:0 8px 25px rgba(0,0,0,0.1);
  --result-bg:#f8f9ff;
  --th-bg:#f5f7fa;
  --heading:#1a1a2e;
}
[data-theme="dark"]{
  --bg:#0f1419;
  --card-bg:#1a1f29;
  --border:#2a3140;
  --text:#e8eaed;
  --text-light:#a8b0bf;
  --text-muted:#6b7280;
  --shadow:0 2px 8px rgba(0,0,0,0.3);
  --shadow-hover:0 8px 25px rgba(0,0,0,0.5);
  --result-bg:#161b22;
  --th-bg:#1f242d;
  --heading:#e8eaed;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB',sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
  transition:background 0.2s,color 0.2s;
}
.nav{
  background:var(--card-bg);
  padding:14px 20px;
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  gap:12px;
  position:sticky;
  top:0;
  z-index:100;
  box-shadow:var(--shadow);
}
.nav a{color:var(--primary);text-decoration:none;font-size:14px;font-weight:500;}
.nav a:hover{opacity:0.8;}
.nav span{color:var(--text-muted);font-size:14px;}
.nav .theme-btn{
  margin-left:auto;
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid var(--border);
  background:var(--bg);
  color:var(--text);
  cursor:pointer;
  font-size:14px;
  display:flex;
  align-items:center;
  justify-content:center;
}
.nav .theme-btn:hover{border-color:var(--primary);}
.container{max-width:960px;margin:24px auto;padding:0 16px;}
.card{
  background:var(--card-bg);
  border-radius:14px;
  padding:24px;
  border:1px solid var(--border);
  margin-bottom:16px;
  box-shadow:var(--shadow);
}
h2{font-size:20px;font-weight:600;margin-bottom:16px;color:var(--heading);}
h3{font-size:16px;font-weight:600;margin-bottom:8px;color:var(--heading);}
.toolbar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap;}
.btn{
  padding:9px 18px;
  border-radius:8px;
  font-size:13px;
  cursor:pointer;
  border:1px solid var(--border);
  background:var(--card-bg);
  color:var(--text);
  transition:all 0.15s;
  font-weight:500;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 2px 8px rgba(0,0,0,0.08);}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border:none;}
.btn.primary:hover{box-shadow:0 4px 12px rgba(102,126,234,0.3);}
.btn.success{border-color:var(--success);color:var(--success);}
.btn.danger{border-color:var(--danger);color:var(--danger);}
.btn.warning{border-color:#ff9800;color:#ff9800;}
textarea,input[type="text"],input[type="number"],input[type="password"],input[type="search"],select{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--border);
  border-radius:8px;
  font-size:14px;
  outline:none;
  font-family:inherit;
  background:var(--card-bg);
  color:var(--text);
  transition:border-color 0.15s,box-shadow 0.15s;
}
textarea{font-family:'SF Mono','Courier New',monospace;resize:vertical;min-height:140px;line-height:1.5;}
textarea:focus,input:focus,select:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(102,126,234,0.1);
}
label{font-size:14px;color:var(--text-light);display:block;margin-bottom:6px;font-weight:500;}
.input-row{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap;}
.input-row > *{flex:1;min-width:0;}
.checkbox-row{display:flex;align-items:center;gap:16px;margin-bottom:12px;flex-wrap:wrap;}
.checkbox-row label{margin:0;font-weight:normal;display:flex;align-items:center;gap:6px;cursor:pointer;}
.result-box{
  background:var(--result-bg);
  border:1px solid var(--border);
  border-radius:8px;
  padding:16px;
  margin-top:12px;
  word-break:break-all;
}
.result-box p{margin:6px 0;font-size:14px;}
.result-box strong{color:var(--primary);}
.info-box{
  background:#e8f5e9;
  border:1px solid #c8e6c9;
  border-radius:8px;
  padding:12px;
  margin-top:12px;
  font-size:13px;
  color:#2e7d32;
}
[data-theme="dark"] .info-box{background:rgba(76,175,80,0.1);border-color:rgba(76,175,80,0.3);color:#81c784;}
table{width:100%;border-collapse:collapse;font-size:13px;}
th,td{border:1px solid var(--border);padding:10px;text-align:left;}
th{background:var(--th-bg);font-weight:600;color:var(--heading);}
a{color:var(--primary);}

/* Toast 通知 */
.toast{font-size:14px;user-select:none;}

/* 统计卡片 */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:16px;}
.stat-card{background:var(--result-bg);border:1px solid var(--border);border-radius:10px;padding:14px;text-align:center;}
.stat-card .val{font-size:22px;font-weight:700;color:var(--primary);}
.stat-card .lbl{font-size:12px;color:var(--text-muted);margin-top:4px;}

/* 步骤线 */
.step-line{padding:6px 0;font-size:13px;color:var(--text-light);border-left:2px solid var(--border);padding-left:12px;margin:4px 0;}
.step-line:last-child{border-left-color:var(--primary);}

/* 可视化条形 */
.bar-row{display:flex;align-items:center;gap:8px;margin:4px 0;font-size:13px;}
.bar-row .bar-bg{flex:1;height:20px;background:var(--border);border-radius:4px;overflow:hidden;}
.bar-row .bar-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary),var(--primary-dark));transition:width 0.4s;display:flex;align-items:center;padding-left:6px;color:#fff;font-size:11px;}
.bar-row .bar-lbl{width:80px;text-align:right;flex-shrink:0;color:var(--text-light);font-size:12px;}

/* 移动端适配 */
@media(max-width:600px){
  .container{padding:0 12px;margin:16px auto;}
  .card{padding:16px;border-radius:12px;}
  .nav{padding:12px 16px;gap:8px;font-size:13px;}
  .nav a,.nav span{font-size:13px;}
  h2{font-size:18px;}
  h3{font-size:15px;}
  .toolbar{flex-direction:column;}
  .btn{width:100%;padding:12px;font-size:14px;}
  textarea{min-height:120px;font-size:13px;}
  input[type="text"],input[type="number"],input[type="password"],input[type="search"],select{
    padding:14px;font-size:16px; /* 避免 iOS 缩放 */
  }
  .input-row{flex-direction:column;}
  .input-row > *{width:100%;}
  .checkbox-row{gap:12px;}
  table{font-size:12px;display:block;overflow-x:auto;white-space:nowrap;}
  th,td{padding:8px;}
}