:root{
  --bg:#fafafa;
  --surface:#ffffff;
  --surface-2:#f4f5f7;
  --border:#e5e7eb;
  --border-strong:#d1d5db;
  --text:#1f2937;
  --text-2:#6b7280;
  --text-3:#9ca3af;
  --primary:#3b6fd9;
  --primary-hover:#2f5bb8;
  --primary-soft:#eef3fc;
  --danger:#dc2626;
  --danger-soft:#fef2f2;
  --success:#16a34a;
  --success-soft:#f0fdf4;
  --warn:#d97706;
  --warn-soft:#fffbeb;
  --gold:#d97706;
  --gold-soft:#fffbeb;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 1px 3px rgba(0,0,0,.06);
  --radius:8px;
  --radius-sm:6px;
  --sidebar-w:220px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
[data-theme="dark"]{
  --bg:#111113;
  --surface:#1a1a1d;
  --surface-2:#202024;
  --border:#2d2d32;
  --border-strong:#3f3f46;
  --text:#e4e4e7;
  --text-2:#9ca3af;
  --text-3:#6b7280;
  --primary:#6b9bff;
  --primary-hover:#85aeff;
  --primary-soft:#1c2740;
  --danger:#f87171;
  --danger-soft:#2a1a1d;
  --success:#4ade80;
  --success-soft:#142a1c;
  --warn:#fbbf24;
  --warn-soft:#2a2410;
  --gold:#fbbf24;
  --gold-soft:#2a2410;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 1px 3px rgba(0,0,0,.4);
}

*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
a{color:var(--primary);text-decoration:none;transition:color .15s}
a:hover{color:var(--primary-hover)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--text)}
code,pre{font-family:var(--mono)}

.app{display:flex;min-height:100vh}

.sidebar{
  width:var(--sidebar-w);
  background:var(--surface);
  border-right:1px solid var(--border);
  position:fixed;
  top:0;left:0;bottom:0;
  z-index:100;
  display:flex;
  flex-direction:column;
  transition:transform .25s ease;
}
.sidebar-brand{
  padding:20px 20px 16px;
  border-bottom:1px solid var(--border);
}
.sidebar-brand .brand-title{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  letter-spacing:-.2px;
}
.sidebar-brand .brand-title span{color:var(--primary)}

.sidebar-nav{
  flex:1;
  padding:10px 8px;
  overflow-y:auto;
}
.nav-group-title{
  font-size:11px;
  font-weight:600;
  color:var(--text-3);
  text-transform:uppercase;
  letter-spacing:.5px;
  padding:12px 12px 6px;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  margin:1px 0;
  color:var(--text-2);
  border-radius:var(--radius-sm);
  font-size:13.5px;
  transition:background .15s,color .15s;
  cursor:pointer;
  user-select:none;
}
.nav-item:hover{background:var(--surface-2);color:var(--text)}
.nav-item.active{
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:500;
}
.nav-item i{width:16px;text-align:center;font-size:14px;flex-shrink:0}

.sidebar-foot{
  padding:12px;
  border-top:1px solid var(--border);
}
.sidebar-foot .foot-link{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  font-size:13px;
  color:var(--text-2);
  border-radius:var(--radius-sm);
  transition:background .15s,color .15s;
}
.sidebar-foot .foot-link:hover{background:var(--surface-2);color:var(--primary)}
.sidebar-foot .foot-link i{font-size:14px}

.main{
  margin-left:var(--sidebar-w);
  flex:1;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

.topbar{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  height:52px;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.topbar-left{display:flex;align-items:center;gap:10px}
.topbar-title{font-size:15px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px}
.topbar-title i{color:var(--primary);font-size:15px}
.topbar-right{display:flex;align-items:center;gap:8px}
.topbar-date{font-size:12.5px;color:var(--text-3);margin-right:4px;display:none}
@media(min-width:641px){.topbar-date{display:inline}}
.menu-btn{
  display:none;
  width:34px;height:34px;
  border-radius:var(--radius-sm);
  align-items:center;justify-content:center;
  color:var(--text-2);
  transition:background .15s,color .15s;
}
.menu-btn:hover{background:var(--surface-2);color:var(--text)}
.icon-btn{
  width:34px;height:34px;
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);
  transition:background .15s,color .15s;
}
.icon-btn:hover{background:var(--surface-2);color:var(--text)}

.mobile-mask{
  display:none;
  position:fixed;inset:0;
  background:rgba(0,0,0,.4);
  z-index:99;
}
.mobile-mask.show{display:block}

.content{
  flex:1;
  padding:28px 32px 40px;
  max-width:1000px;
  width:100%;
  margin:0 auto;
}

.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  margin-bottom:16px;
  box-shadow:var(--shadow);
}
.card-title{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:12px;
  display:flex;
  align-items:center;
  gap:8px;
}
.card-title i{color:var(--primary);font-size:14px}
.card-title .card-extra{margin-left:auto;font-weight:400;font-size:13px;color:var(--text-2)}

.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}

.btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  font-size:13px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-weight:500;
  transition:background .15s,border-color .15s,color .15s,transform .1s;
  white-space:nowrap;
  line-height:1.4;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);color:#fff}
.btn-ghost{background:transparent;color:var(--text-2);border-color:var(--border)}
.btn-ghost:hover{background:var(--surface-2);color:var(--text);border-color:var(--border-strong)}
.btn-danger{background:var(--danger-soft);color:var(--danger)}
.btn-danger:hover{background:var(--danger);color:#fff}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

.input,.textarea{
  width:100%;
  padding:8px 12px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text);
  font-size:13.5px;
  transition:border-color .15s,box-shadow .15s;
  outline:none;
}
.input:focus,.textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-soft);
}
.textarea{min-height:110px;resize:vertical;line-height:1.6}
.form-row{margin-bottom:12px}
.form-row:last-child{margin-bottom:0}

.tag{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:2px 8px;
  font-size:12px;
  border-radius:4px;
  background:var(--surface-2);
  color:var(--text-2);
  font-weight:500;
}
.tag-primary{background:var(--primary-soft);color:var(--primary)}
.tag-success{background:var(--success-soft);color:var(--success)}
.tag-danger{background:var(--danger-soft);color:var(--danger)}
.tag-warn{background:var(--warn-soft);color:var(--warn)}

.muted{color:var(--text-2)}
.small{font-size:12.5px}
.mono{font-family:var(--mono);font-size:13px}
.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.space-between{justify-content:space-between}

.hero{padding:8px 0 4px;margin-bottom:20px}
.hero h1{font-size:22px;font-weight:700;color:var(--text);letter-spacing:-.3px;margin-bottom:6px}
.hero p{color:var(--text-2);font-size:14px;line-height:1.7}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:20px}
.stat-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  box-shadow:var(--shadow);
}
.stat-card .stat-label{font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.stat-card .stat-value{font-size:24px;font-weight:700;color:var(--text)}
.stat-card .stat-value.blue{color:var(--primary)}
.stat-card .stat-value.green{color:var(--success)}
.stat-card .stat-value.orange{color:var(--warn)}
.stat-card .stat-value.red{color:var(--danger)}

.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.toolbar .input{flex:1;min-width:160px}
.toolbar select{
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:13px;
  outline:none;
  cursor:pointer;
}
.toolbar select:focus{border-color:var(--primary)}
.version-filter{
  width:120px;
  min-width:120px;
  padding:8px 10px;
  font-size:12.5px;
  text-align:center;
}
.version-filter::placeholder{color:var(--text-3);font-size:12px}
.search-wrap{
  position:relative;
  flex:1;
  min-width:160px;
  display:flex;
  align-items:center;
}
.search-icon{
  position:absolute;
  left:12px;
  color:var(--text-3);
  font-size:13px;
  pointer-events:none;
  transition:color .15s;
}
.search-input{
  padding-left:34px !important;
}
.search-input:focus + .search-icon,
.search-wrap:focus-within .search-icon{color:var(--primary)}

.cat-bar{display:flex;gap:6px;margin-bottom:16px;flex-wrap:wrap}
.cat-btn{
  padding:6px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text-2);
  font-size:13px;
  cursor:pointer;
  transition:all .15s;
}
.cat-btn:hover{background:var(--surface-2);color:var(--text);border-color:var(--border-strong)}
.cat-btn.active{background:var(--primary);color:#fff;border-color:transparent}
.cat-btn-action{background:var(--surface-2);color:var(--primary);font-size:12px;padding:6px 10px}
.cat-btn-action:hover{background:var(--primary);color:#fff;border-color:transparent}
.cat-btn-action:disabled{opacity:.4;cursor:default}
.cat-btn-action:disabled:hover{background:var(--surface-2);color:var(--primary)}
.custom-cat-bar{margin-bottom:8px}

.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-bottom:16px}
.room-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px;
  cursor:pointer;
  transition:all .15s;
  box-shadow:var(--shadow);
}
.room-card:hover{border-color:var(--primary);box-shadow:0 4px 16px rgba(59,111,217,.12)}
.room-card.selected{border-color:var(--primary);box-shadow:0 4px 16px rgba(59,111,217,.2)}
/* 徽标行永远单行；地区chip放名称行右侧，避免叠行 */
.room-card-top{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-bottom:8px;min-height:22px}
.room-card-top>*{margin-bottom:0;margin-left:0;min-width:0}
.room-card-namerow{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.room-card-namerow .room-card-name{flex:1 1 auto;min-width:0;margin-bottom:0}
.room-card-region{
  flex:0 1 auto;
  min-width:0;
  max-width:60%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  font-size:11px;
  padding:2px 9px;
  border-radius:999px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:500;
}
/* 运营商显示在地区左侧（同一 chip 内），样式弱化区分 */
.room-card-isp{opacity:.75}
.room-card-app-badge{
  display:inline-block;
  font-size:11px;
  padding:2px 8px;
  border-radius:4px;
  background:var(--surface-2);
  color:var(--text-2);
  font-weight:500;
  margin-bottom:6px;
  margin-left:6px;
}
.room-card-cat{
  font-size:11px;
  padding:2px 8px;
  border-radius:4px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:500;
  display:inline-block;
  margin-bottom:6px;
}
.room-card-name{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:4px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.room-card-code{
  font-size:12.5px;
  color:var(--text-2);
  font-family:var(--mono);
  letter-spacing:1px;
  margin-bottom:6px;
}
.room-card-info{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-2);
  gap:8px;
  flex-wrap:wrap;
}
.room-card-ver{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:2px 7px;
  font-size:11.5px;
  border-radius:4px;
  background:var(--primary-soft);
  color:var(--primary);
  font-weight:500;
}
.room-card-addr{font-size:11px;color:var(--text-3);margin-top:6px;cursor:pointer}
.room-card-addr:hover{color:var(--primary)}

.pagination{display:flex;justify-content:center;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:24px}
.page-btn{
  min-width:32px;
  height:32px;
  padding:0 8px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:13px;
  cursor:pointer;
  transition:all .15s;
}
.page-btn:hover:not(.disabled):not(.active){border-color:var(--primary);color:var(--primary)}
.page-btn.active{background:var(--primary);color:#fff;border-color:transparent}
.page-btn.loading{animation:pagePulse 1s ease infinite}
@keyframes pagePulse{0%,100%{opacity:1}50%{opacity:.45}}
.page-btn.disabled{opacity:.4;cursor:not-allowed}
.page-input{
  width:50px;
  height:32px;
  padding:0 6px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  text-align:center;
  font-size:13px;
  outline:none;
}
.page-input:focus{border-color:var(--primary)}
.page-sep{color:var(--text-3);padding:0 2px;user-select:none}

.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{
  text-align:left;
  padding:10px 12px;
  border-bottom:2px solid var(--border);
  color:var(--text-2);
  font-weight:600;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.3px;
}
td{padding:10px 12px;border-bottom:1px solid var(--border);color:var(--text)}
tr:hover td{background:var(--surface-2)}
.badge{
  display:inline-block;
  padding:2px 8px;
  border-radius:4px;
  font-size:12px;
  font-weight:500;
}
.badge-green{background:var(--success-soft);color:var(--success)}
.badge-orange{background:var(--warn-soft);color:var(--warn)}
.badge-red{background:var(--danger-soft);color:var(--danger)}
.badge-blue{background:var(--primary-soft);color:var(--primary)}

.config-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.cfg-item{display:flex;flex-direction:column;gap:4px}
.cfg-item label{font-size:12px;color:var(--text-3);font-weight:500}
.cfg-item input{
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:13.5px;
  outline:none;
  transition:border-color .15s,box-shadow .15s;
}
.cfg-item input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.cfg-hint{font-size:11px;color:var(--text-3)}

.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag-list .tag{
  padding:4px 10px;
  background:var(--primary-soft);
  color:var(--primary);
  border-radius:var(--radius-sm);
  font-size:13px;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:4px;
}
.tag-del{
  background:none;
  border:none;
  color:var(--danger);
  cursor:pointer;
  font-size:16px;
  line-height:1;
  padding:0 2px;
}
.tag-del:hover{color:var(--danger-hover,#c0392b)}

.inline-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.inline-form .input{
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:13.5px;
  outline:none;
}
.inline-form .input:focus{border-color:var(--primary)}

.toggle-label{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  cursor:pointer;
  margin-bottom:8px;
  color:var(--text);
}
.toggle-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}

.pwd-form{display:flex;flex-direction:column;gap:10px;max-width:360px}
.pwd-form .input{
  padding:10px 14px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:14px;
  outline:none;
}
.pwd-form .input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.pwd-form .btn{align-self:flex-start}

.login-box{
  max-width:360px;
  margin:80px auto;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:32px;
  box-shadow:var(--shadow);
}
.login-box h2{text-align:center;margin-bottom:24px;font-size:20px;font-weight:700;color:var(--text)}
.login-box .input{
  width:100%;
  padding:10px 14px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:14px;
  margin-bottom:12px;
  outline:none;
}
.login-box .input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.login-box .btn{width:100%;padding:12px;justify-content:center}

.msg-box{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:12px}
.msg-box.error{background:var(--danger-soft);color:var(--danger)}
.msg-box.success{background:var(--success-soft);color:var(--success)}

.btn-test{
  padding:6px 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text-2);
  font-size:12px;
  cursor:pointer;
  transition:all .15s;
  white-space:nowrap;
}
.btn-test:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.btn-test:disabled{opacity:.5;cursor:not-allowed}

.ai-test-result{display:none;margin-top:4px;padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;max-width:100%;overflow-x:auto}
.ai-test-result.success{display:block;background:var(--success-soft);color:var(--success);border:1px solid var(--success)}
.ai-test-result.fail{display:block;background:var(--danger-soft);color:var(--danger);border:1px solid var(--danger)}
.ai-test-result.neutral{display:block;background:var(--warn-soft);color:var(--warn);border:1px solid var(--warn)}
.ai-test-result pre{margin:4px 0 0;font-size:11px;color:var(--text-2);white-space:pre-wrap;word-break:break-all;max-height:300px;overflow-y:auto;background:var(--surface-2);padding:6px 8px;border-radius:4px}

.ai-model-row{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  padding:10px;
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
}
.ai-model-row .input{
  padding:8px 12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--surface);
  color:var(--text);
  font-size:13.5px;
  outline:none;
}

.chart-wrap{width:100%;height:220px;position:relative}
.chart-wrap canvas{width:100%!important;height:100%!important}

.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:200;justify-content:center;align-items:center;padding:20px}
.modal-overlay.show{display:flex}
.modal-box{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  max-width:440px;
  width:100%;
  max-height:85vh;
  overflow-y:auto;
  padding:24px;
  box-shadow:0 8px 32px rgba(0,0,0,.2);
  position:relative;
}
.modal-close{
  position:absolute;
  top:12px;right:16px;
  width:28px;height:28px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  color:var(--text-3);
  cursor:pointer;
  transition:all .15s;
}
.modal-close:hover{background:var(--surface-2);color:var(--text)}
.modal-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:4px;padding-right:28px}
.modal-code{font-family:var(--mono);font-size:13px;color:var(--text-2);letter-spacing:1.5px;margin-bottom:14px}
.modal-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:8px 0;
  border-bottom:1px solid var(--border);
  font-size:13.5px;
}
.modal-row:last-child{border-bottom:none}
.modal-row .label{color:var(--text-3);font-size:13px}
.modal-row .value{font-weight:500;color:var(--text)}
.modal-addr{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.modal-addr-item{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:all .15s;
  font-size:13px;
  font-family:var(--mono);
  color:var(--text);
}
.modal-addr-item:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.modal-addr-item .addr-label{font-family:var(--font);font-weight:500;color:var(--text-2);min-width:70px}
.modal-addr-item:hover .addr-label{color:var(--primary)}

.donate-wrap{text-align:center;padding:40px 20px}
.donate-wrap h2{font-size:24px;margin-bottom:8px;color:var(--primary);font-weight:700}
.donate-wrap p{color:var(--text-2);font-size:14px;margin-bottom:24px}
.donate-qr{
  width:280px;height:280px;
  object-fit:contain;
  border-radius:var(--radius);
  border:1px solid var(--border);
  margin:0 auto 16px;
}
.donate-hint{color:var(--text-3);font-size:12px}

.lang-btn{
  padding:7px 12px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text-2);
  font-size:13px;
  font-weight:500;
  cursor:pointer;
  transition:all .15s;
  font-family:inherit;
}
.lang-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}

.group-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  padding:7px 12px;
  margin-bottom:6px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
  background:var(--surface);
  color:var(--text-2);
  font-size:13px;
  font-weight:500;
  text-decoration:none;
  transition:all .15s;
  font-family:inherit;
  box-sizing:border-box;
}
.group-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.group-btn i{font-size:14px}
.group-btn svg{width:14px;height:14px;flex-shrink:0}

.lang-menu{
  display:none;
  position:absolute;
  right:0;top:100%;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  box-shadow:0 4px 16px rgba(0,0,0,.1);
  z-index:1000;
  min-width:140px;
  padding:4px 0;
}
.lang-menu.show{display:block}
.lang-menu a{
  display:block;
  padding:6px 14px;
  font-size:13px;
  color:var(--text-2);
  text-decoration:none;
  transition:background .15s,color .15s;
}
.lang-menu a:hover{background:var(--surface-2);color:var(--text)}
.lang-menu a.active{background:var(--primary-soft);color:var(--primary);font-weight:600}

.foot{
  border-top:1px solid var(--border);
  padding:20px 0;
  text-align:center;
  color:var(--text-3);
  font-size:12.5px;
  margin-top:24px;
}

.fade-in{animation:fi .3s ease-out both}
@keyframes fi{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:1023px){
  .sidebar{transform:translateX(-100%);box-shadow:4px 0 16px rgba(0,0,0,.1)}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}
  .menu-btn{display:flex}
  .grid-2,.grid-3{grid-template-columns:1fr}
}
@media(max-width:640px){
  .content{padding:18px 16px 28px}
  .topbar{padding:0 14px}
  .card{padding:16px}
  .hero h1{font-size:20px}
  .room-grid{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:1fr 1fr}
  .config-grid{grid-template-columns:1fr}
  .toolbar{flex-wrap:wrap}
  .toolbar .input{min-width:0;flex:1 1 100%}
}

/* ===== 捐赠者管理（admin） ===== */
.donor-admin{display:flex;flex-direction:column;gap:16px}
.donor-form{display:flex;flex-direction:column;gap:10px;max-width:480px}
.avatar-upload-wrap{display:flex;align-items:center;gap:14px}
.avatar-preview{
  width:72px;height:72px;
  border:2px dashed var(--border);
  border-radius:var(--radius-sm);
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  background:var(--surface-2);
  transition:border-color .15s,background .15s;
  image-rendering:pixelated;
}
.avatar-preview:hover{border-color:var(--primary);background:var(--primary-soft)}
.avatar-preview img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated}
.avatar-placeholder{color:var(--text-3);font-size:20px}
.avatar-hint{font-size:12px;color:var(--text-3);flex:1}
.donor-actions{display:flex;gap:8px}
.donor-list{display:flex;flex-direction:column;gap:8px}
.donor-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 12px;
  background:var(--surface-2);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
}
.donor-item-avatar{
  width:40px;height:40px;
  border-radius:var(--radius-sm);
  background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;
  font-weight:600;color:var(--primary);
  font-size:16px;
  overflow:hidden;
  image-rendering:pixelated;
  flex-shrink:0;
}
.donor-item-avatar img{width:100%;height:100%;object-fit:cover;image-rendering:pixelated}
.donor-item-info{flex:1;min-width:0}
.donor-item-name{font-weight:500;color:var(--text);font-size:14px}
.donor-item-amount{font-size:12px;color:var(--text-3)}
.donor-item-actions{display:flex;gap:6px}
.donor-item-actions .btn{padding:4px 10px;font-size:12px}
.donor-loading{color:var(--text-3);font-size:13px;padding:12px;text-align:center}

/* ===== 捐赠页（物理引擎） ===== */
.donate-physics-canvas{
  display:none;
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  z-index:0;
  image-rendering:pixelated;
  pointer-events:none;
  background:var(--bg);
}
.donate-physics-canvas.show{display:block}
.donate-wrap{position:relative;z-index:1}
.donate-tip{font-size:12px;color:var(--text-3);margin-bottom:20px;line-height:1.6}
.donate-no-donors{color:var(--text-3);font-size:13px;padding:40px 0;text-align:center}
@media(max-width:640px){
  .avatar-upload-wrap{flex-wrap:wrap}
}
.room-card-hl-badge{
  display:inline-block;
  font-size:11px;
  padding:2px 8px;
  border-radius:4px;
  background:rgba(255,122,26,.14);
  color:#ff7a1a;
  border:1px solid rgba(255,122,26,.45);
  font-weight:600;
  margin-bottom:6px;
  margin-left:6px;
}
.room-card-kamucl-badge{
  display:inline-block;
  font-size:11px;
  padding:2px 8px;
  border-radius:4px;
  background:rgba(201,162,39,.14);
  color:#c9a227;
  border:1px solid rgba(201,162,39,.45);
  font-weight:600;
  margin-bottom:6px;
  margin-left:6px;
}

/* ===== 后台卡片化网格布局（admin.html）===== */
.admin-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  align-items:start;
}
.admin-cell{margin:0}
.span-all{grid-column:1/-1}
/* 概览页：统计卡一行铺满、趋势图整幅 */
.admin-grid .stat-grid{grid-column:1/-1;margin-bottom:0}
.admin-grid .stat-grid + .card{grid-column:1/-1}
@media(max-width:1100px){
  .admin-grid{grid-template-columns:1fr}
}
/* 折叠卡片 */
.collapsible>.chev{margin-left:auto;font-weight:400;font-size:13px;color:var(--text-3);transition:transform .18s ease}
.collapsible-card.collapsed>.card-title>.chev{transform:rotate(-90deg)}
.collapsible-card.collapsed>.card-body{display:none}
.collapsible{cursor:pointer;user-select:none}
/* 房间方形卡片：管理员一屏要读完"这房间是谁、名字、什么网络、什么版本、能不能处置"，
   所以信息区用两列 fact 网格而不是自由 flex —— flex 换行会让每张卡的列位对不齐。 */
.admin-room-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(286px,1fr));
  gap:12px;
}
.admin-room-card{
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:12px 13px;
  background:var(--surface);
  display:flex;
  flex-direction:column;
  gap:8px;
  box-shadow:var(--shadow);
}
/* 被处置的房间整卡染红，比只挂个小徽章更容易在十几张卡里被认出来 */
.admin-room-card.is-blocked{background:var(--danger-soft);border-color:#f7d4d4}
.admin-room-top{display:flex;align-items:center;gap:6px}
.admin-room-top .badge{margin-left:auto}
.admin-room-name{
  font-weight:600;color:var(--text);font-size:14px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.admin-room-facts{
  display:grid;grid-template-columns:auto 1fr;gap:2px 10px;
  margin:0;font-size:12.5px;line-height:1.55;
}
.admin-room-facts dt{color:var(--text-3);white-space:nowrap}
.admin-room-facts dd{
  margin:0;color:var(--text-2);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.admin-room-facts dd.mono{font-family:var(--mono);font-size:12px}
.admin-room-facts .none{color:var(--text-3)}
/* 操作区：主操作靠左、不可逆的"删掉"收成右上角图标，避免红底大字抢过判断动作 */
.admin-room-acts{margin-top:auto;display:flex;align-items:center;gap:8px;padding-top:2px;flex-wrap:wrap}
.admin-room-acts form{margin:0;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.admin-room-acts .spacer{margin-left:auto}
.admin-room-del{margin-left:auto}
/* 折叠说明：不抢行宽（之前被 flex 挤成"说明（可不填…"），也不画虚下划线 */
.room-note{font-size:12px;color:var(--text-3);flex:0 0 auto}
.room-note summary{cursor:pointer;list-style:none;white-space:nowrap}
.room-note summary::-webkit-details-marker{display:none}
.room-note summary:hover{color:var(--text-2)}
.room-note[open]{width:100%;display:block;flex:1 1 100%}
.room-note[open] summary{margin-bottom:5px}
.room-note input{width:100%;padding:5px 8px;font-size:12.5px}
/* 不可逆动作：平时只是灰色图标，悬停才变红，不用粉色方块抢主操作 */
.badge-gray{background:var(--surface-2);color:var(--text-2)}
.btn-icon{padding:5px 9px;min-width:30px;justify-content:center}
.admin-room-del .btn-icon{background:transparent;border-color:transparent;color:var(--text-3)}
.admin-room-del .btn-icon:hover{background:var(--danger-soft);border-color:transparent;color:var(--danger)}
/* 房间名处置台账：跟卡片同一套语言，行内元素用 grid 对齐，不再堆内联 flex */
.room-ledger-title{margin-top:16px}
.room-ledger{
  list-style:none;margin:0;padding:0;
  display:flex;flex-direction:column;gap:6px;font-size:12.5px;
}
.room-ledger-item{
  display:grid;grid-template-columns:auto 1fr auto auto auto;gap:10px;align-items:center;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface);padding:6px 10px;
}
.room-ledger-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.room-ledger-note{color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.room-ledger-item form{margin:0}
@media (max-width:720px){.room-ledger-item{grid-template-columns:auto 1fr auto}}
/* 日志折叠组 */
.log-group-list{display:flex;flex-direction:column;gap:8px}
.log-group{
  border:1px solid var(--border);
  border-radius:10px;
  background:var(--surface-2);
  overflow:hidden;
}
.log-group-summary{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;cursor:pointer;user-select:none;
  list-style:none;flex-wrap:wrap;
}
.log-group-summary::-webkit-details-marker{display:none}
.log-group-summary:hover{background:var(--surface)}
.log-group-summary i.fa-folder-o{color:var(--warn)}
.log-group[open] .log-group-summary i.fa-folder-o::before{content:"\f115"}
.log-group-body{padding:10px 14px;border-top:1px solid var(--border);background:var(--surface)}
.log-entry-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:4px 0}
/* 配置表单：自适应多列铺满卡片，避免 span-all 卡片右侧大片留白 */
.admin-log-config,.admin-config-col{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:12px;
  max-width:none;
  align-items:start;
}
.admin-log-config .toggle-label,.admin-config-col .toggle-label{align-self:center}
.admin-log-config .cfg-item,.admin-config-col .cfg-item{margin:0}
/* 反馈后台卡片 */
.fb-admin-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(340px,1fr));
  gap:12px;
}
.fb-admin-card{
  border:1px solid var(--border);
  border-radius:12px;
  padding:12px;
  background:var(--surface-2);
  display:flex;flex-direction:column;gap:8px;
}
.fb-admin-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.fb-admin-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.fb-admin-desc{
  white-space:pre-wrap;word-break:break-word;
  max-height:5.2em;overflow:hidden;position:relative;cursor:pointer;
  line-height:1.6;font-size:13px;color:var(--text);
}
.fb-admin-desc.expanded{max-height:none}
/* 渐隐只对确实被截断的卡片生效（JS 检测溢出后加 .clamped），短文不再被遮罩洗白 */
.fb-admin-desc.clamped:not(.expanded)::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2em;
  background:linear-gradient(transparent,var(--surface-2));
}
.fb-admin-atts{display:flex;flex-direction:column;gap:4px}
.fb-att-link{
  font-size:12.5px;color:var(--primary);text-decoration:none;
  display:inline-flex;align-items:center;gap:6px;word-break:break-all;
}
.fb-att-link:hover{text-decoration:underline}
.fb-admin-foot{margin-top:auto;display:flex;justify-content:flex-end}
/* 工单后台卡片（复用 fb-admin 骨架） */
.fb-admin-card.tk-unread{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary) inset}
.tk-thread{
  display:flex;flex-direction:column;gap:8px;
  border-top:1px dashed var(--border);padding-top:8px;
}
.tk-msg{padding:6px 10px;border-radius:8px;font-size:13px}
.tk-msg-admin{background:color-mix(in srgb,var(--primary) 10%,transparent);border-left:3px solid var(--primary)}
.tk-msg-player{background:var(--surface);border-left:3px solid var(--border)}
.tk-msg-text{white-space:pre-wrap;word-break:break-word;line-height:1.55;margin-top:2px}
/* 撤回入口：贴在消息右下角，平时淡、悬停才着色，别跟正文抢注意力 */
.tk-retract-form,.tk-msg-acts{display:flex;justify-content:flex-end;margin-top:2px}
.btn-link-retract{
  background:none;border:none;padding:0 2px;cursor:pointer;
  font-size:12px;color:var(--muted,#888);text-decoration:underline dotted;
}
.btn-link-retract:hover{color:var(--danger,#c0392b)}
.btn-link-retract:disabled{opacity:.5;cursor:default;text-decoration:none}
.tk-reply-form{display:flex;flex-direction:column;gap:6px}
.tk-reply-form textarea{
  width:100%;box-sizing:border-box;resize:vertical;min-height:44px;
  border:1px solid var(--border);border-radius:8px;padding:8px;
  background:var(--surface);color:var(--text);font:inherit;font-size:13px;
}
.tk-reply-form textarea:focus{outline:none;border-color:var(--primary)}
.tk-reply-form .btn{align-self:flex-end}

/* ===== 前台反馈页（index.html ?page=feedback）===== */
.fb-page{max-width:760px;margin:0 auto}
.fb-page-title{margin-bottom:6px}
.fb-choice-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px;
}
.fb-choice-grid-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){.fb-choice-grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.fb-choice-grid{grid-template-columns:1fr}}
.fb-choice-card{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:10px;padding:32px 20px;cursor:pointer;text-decoration:none;
  transition:transform .15s ease,border-color .15s ease;
}
.fb-choice-card:hover{transform:translateY(-3px);border-color:var(--primary)}
.fb-choice-icon{
  width:56px;height:56px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:26px;
}
.fb-choice-name{font-weight:700;font-size:16px;color:var(--text)}
.fb-choice-sub{line-height:1.6}
.fb-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px}

/* ---- 玩家工单（提交回执 / 我的工单 / 详情追问） ---- */
.fb-choice-grid-4{grid-template-columns:repeat(2,1fr)}
@media(max-width:640px){.fb-choice-grid-4{grid-template-columns:1fr}}
.tk-receipt{max-width:520px;margin:0 auto 16px;text-align:left}
.tk-receipt-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tk-receipt-row code{
  flex:1;min-width:0;overflow-wrap:anywhere;padding:6px 10px;
  border:1px dashed var(--border);border-radius:8px;background:var(--surface);
}
.tk-thread{display:flex;flex-direction:column;gap:10px}
.fb-drop{
  border:2px dashed var(--border-strong,var(--border));
  border-radius:12px;padding:22px 16px;text-align:center;cursor:pointer;
  display:flex;flex-direction:column;gap:4px;align-items:center;
  color:var(--text-2);transition:border-color .15s ease,background .15s ease;
}
.fb-drop:hover{border-color:var(--primary);background:var(--primary-soft)}
.fb-drop i.fa{font-size:22px;color:var(--primary)}
.fb-file-list{display:flex;flex-direction:column;gap:6px;margin-top:10px}
.fb-file-item{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--border);border-radius:8px;
  padding:6px 10px;font-size:13px;background:var(--surface-2);
}
.fb-file-item .fb-file-name{
  flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.fb-file-del{
  border:0;background:transparent;color:var(--danger);
  font-size:18px;cursor:pointer;line-height:1;padding:0 4px;
}
.fb-progress{
  height:8px;border-radius:99px;background:var(--surface-2);
  overflow:hidden;border:1px solid var(--border);
}
.fb-progress-bar{
  height:100%;width:0;background:var(--primary);
  border-radius:99px;transition:width .2s ease;
}
.fb-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:6px}

.fb-err{
  display:none;
  background:var(--danger-soft);
  color:var(--danger);
  border:1px solid var(--danger);
  border-radius:8px;
  padding:10px 14px;
  font-size:13px;
  margin-top:10px;
}

/* ===== 更多链接弹窗 ===== */
button.group-btn{cursor:pointer}
.link-list{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.link-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-2);
  text-decoration:none;
  font-size:13.5px;
  transition:all .15s;
}
.link-item:hover{background:var(--primary-soft);color:var(--primary);border-color:var(--primary)}
.link-item i{width:16px;text-align:center;font-size:14px}
.link-item svg{width:14px;height:14px;flex-shrink:0}
.link-item .link-url{margin-left:auto;font-size:11.5px;color:var(--text-3);font-family:var(--mono)}

/* ===== 关于页 ===== */
.about-wrap{max-width:720px;margin:0 auto;padding-top:12px}
.about-head h2{margin:0 0 6px;font-size:22px;font-weight:700;color:var(--text)}
.about-head p{margin:0 0 18px;font-size:14px;line-height:1.7}
.about-author-list{display:flex;flex-direction:column;gap:10px}
.about-author{
  display:flex;align-items:center;gap:14px;
  padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--text);text-decoration:none;transition:all .15s;
}
.about-author:hover{background:var(--primary-soft);border-color:var(--primary)}
.about-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;
}
.about-author-info{display:flex;flex-direction:column;gap:4px;min-width:0}
.about-author-name{font-weight:700;font-size:14.5px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.about-author-desc{font-size:12.5px;line-height:1.5}
.about-author .link-url{margin-left:auto;font-size:11.5px;color:var(--text-3);font-family:var(--mono);flex-shrink:0}
.about-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block}
.about-thanks-text{margin:0;font-size:13.5px;line-height:1.8;color:var(--text-2)}