*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:14px;line-height:1.6;color:var(--text-primary);
  background-color:var(--bg-body);
  background-image:var(--bg-pattern,radial-gradient(circle,var(--border) 1px,transparent 1px));
  background-size:var(--bg-pattern-size,18px 18px);min-height:100vh;padding:20px;
}
body[data-theme="3"]{background-image:linear-gradient(135deg,#e8f0fe,#f3e8ff,#fce7f3,#e0f2fe)}
.container{max-width:1040px;margin:0 auto}
.navbar{background:var(--bg-panel);border:1px solid var(--border);padding:10px 20px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;border-radius:2px;margin-bottom:16px}
.navbar-brand{font-family:Georgia,'Times New Roman',serif;font-size:1.05rem;font-weight:bold;color:var(--text-primary);text-decoration:none;white-space:nowrap}
.navbar-links{display:flex;flex-wrap:wrap;gap:2px;list-style:none}
.navbar-links a{display:inline-block;padding:6px 12px;border-radius:2px;color:var(--text-secondary);text-decoration:none;font-size:.82rem;font-weight:500}
.navbar-links a:hover{background:var(--button-bg);color:var(--text-primary)}
.navbar-links a.active{color:var(--accent);background:var(--button-bg);font-weight:600}
.navbar-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.theme-toggle{background:var(--button-bg);border:1px solid var(--border);color:var(--text-primary);border-radius:2px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1rem}
.theme-toggle:hover{background:var(--button-hover)}.theme-toggle:active{transform:translateY(1px)}
.panel{background:var(--bg-panel);border:1px solid var(--border);border-radius:2px;padding:20px;margin-bottom:16px}
.panel-header{font-family:Georgia,'Times New Roman',serif;font-size:.95rem;font-weight:bold;color:var(--text-primary);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:6px}
input,select,textarea{background:var(--bg-body);color:var(--text-primary);border:1px solid var(--border);border-radius:2px;padding:10px 12px;font-family:'Courier New',Courier,monospace;font-size:.88rem;width:100%;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--accent);background:var(--bg-panel)}
textarea{resize:vertical}
.btn{background:var(--button-bg);color:var(--text-primary);border:1px solid var(--border);border-radius:2px;padding:6px 14px;font-size:.82rem;font-family:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:5px;white-space:nowrap;box-shadow:inset 0 -2px 0 rgba(0,0,0,0.06);text-decoration:none}
.btn:hover{background:var(--button-hover)}.btn:active{transform:translateY(1px);box-shadow:inset 0 -1px 0 rgba(0,0,0,0.06)}
.btn-primary{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn-primary:hover{background:var(--accent-hover)}
.btn-sm{padding:4px 10px;font-size:.76rem}
.btn-group{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.status-bar{background:var(--bg-panel);border:1px solid var(--border);border-radius:2px;padding:8px 16px;font-size:.82rem;display:flex;align-items:center;gap:6px;margin-top:16px}
.status-icon{width:16px;text-align:center;flex-shrink:0}.status-text{flex:1}
.output-area{background:var(--bg-body);border:1px solid var(--border);border-radius:2px;padding:14px;min-height:60px;max-height:400px;overflow:auto;font-family:'Courier New',Courier,monospace;font-size:.84rem;white-space:pre-wrap;word-break:break-all;line-height:1.5;color:var(--text-primary)}
.tab-container{display:flex;gap:0}
.tab-btn{padding:6px 14px;background:transparent;border:1px solid var(--border);border-bottom:none;color:var(--text-secondary);font-size:.82rem;cursor:pointer;border-radius:2px 2px 0 0;font-family:inherit}
.tab-btn.active{background:var(--bg-panel);color:var(--accent);font-weight:600;border-bottom:1px solid var(--bg-panel);margin-bottom:-1px}
.tab-content{background:var(--bg-panel);border:1px solid var(--border);border-top:none;border-radius:0 0 2px 2px;padding:16px}
.tab-panel{display:none}.tab-panel.active{display:block}
.hidden{display:none!important}
.text-sm{font-size:.82rem}.text-xs{font-size:.74rem}.text-center{text-align:center}
.mt-1{margin-top:6px}.mt-2{margin-top:14px}.mb-1{margin-bottom:6px}.mb-2{margin-bottom:14px}
.gap-1{gap:6px}.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.flex-1{flex:1}
.main-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.qr-canvas-wrap{text-align:center;padding:10px;min-height:200px;display:flex;align-items:center;justify-content:center}
.qr-canvas-wrap canvas,.qr-canvas-wrap img{border:1px solid var(--border);border-radius:2px}
.ad-container{display:flex;justify-content:center;align-items:center;background:#ece4f0;color:#a8a498;font-size:.72rem;overflow:hidden;border-radius:2px}
body[data-theme="4"] .ad-container{background:#1a1814;color:#5a5852}
.ad-top{min-height:70px;margin:0 0 12px 0}
.upload-zone{border:2px dashed var(--border);border-radius:2px;padding:30px 20px;text-align:center;cursor:pointer;background:var(--bg-body);transition:border-color .2s}
.upload-zone:hover{border-color:var(--accent);background:var(--bg-panel)}
.color-row{display:flex;gap:6px;align-items:center}
.color-row input[type="color"]{width:40px;height:38px;padding:0;border:1px solid var(--border);cursor:pointer}
/* ── 侧边栏布局 ── */
.app-layout{display:flex;min-height:100vh}
.sidebar{
  width:260px;min-width:260px;position:fixed;top:0;left:0;bottom:0;
  background:var(--bg-panel);border-right:1px solid var(--border);
  padding:20px 14px;display:flex;flex-direction:column;
  z-index:100;overflow-y:auto;
}
.sidebar-brand{
  font-family:Georgia,'Times New Roman',serif;font-size:1rem;font-weight:bold;
  color:var(--text-primary);text-decoration:none;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.sidebar-nav{list-style:none;flex:1}
.sidebar-nav li{margin-bottom:2px}
.sidebar-nav a{
  display:flex;align-items:center;gap:8px;padding:6px 10px;
  border-radius:2px;color:var(--text-secondary);
  text-decoration:none;font-size:.8rem;transition:all .15s;
}
.sidebar-nav a:hover{background:var(--button-bg);color:var(--text-primary)}
.sidebar-nav a.active{background:var(--button-bg);color:var(--accent);font-weight:600}
.sidebar-divider{height:1px;background:var(--border);margin:16px 0}
.main-content{margin-left:260px;flex:1;padding:20px 24px}
@media(max-width:768px){
  .sidebar{width:240px;min-width:240px;padding:14px 10px}
  .sidebar-nav a{font-size:.74rem;padding:5px 8px}
  .main-content{margin-left:240px;padding:16px 14px}
}
@media(max-width:560px){
  .sidebar{position:relative;width:100%;min-width:100%;max-height:130px;flex-direction:row;flex-wrap:wrap;align-items:center;gap:6px;padding:8px 12px;border-right:none;border-bottom:1px solid var(--border)}
  .sidebar-brand{margin-bottom:0;font-size:.9rem}
  .sidebar-nav{display:flex;flex-wrap:wrap;gap:2px;flex:none}
  .sidebar-nav li{margin:0}
  .sidebar-nav a{padding:3px 6px;font-size:.7rem}
  .sidebar-divider{display:none}
  .app-layout{flex-direction:column}
  .main-content{margin-left:0;padding:12px}
}

@media(max-width:768px){body{padding:10px}.main-grid{grid-template-columns:1fr}.navbar{padding:8px 14px}.navbar-links{width:100%;overflow-x:auto;flex-wrap:nowrap;padding-bottom:3px}.navbar-links a{flex-shrink:0}}