/* === CSS Variables === */
:root {
  --bg: #f5f5f5;
  --surface: #fff;
  --fg: #1a1a1a;
  --muted: #888;
  --border: #e8e8e8;
  --accent: #2f6feb;
  --accent-hover: #1a56d0;
  --danger: #dc2626;
  --danger-hover: #b91c1c;
  --success: #17a34a;
  --sidebar-bg: #001529;
  --sidebar-width: 220px;
  --topbar-height: 56px;
  --radius: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
}

/* === Reset === */
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;color:var(--fg);background:var(--bg)}
h1,h2,h3,p{margin:0}
a{color:var(--accent);text-decoration:none}
button{cursor:pointer;font:inherit}
input{font:inherit}

/* === Buttons === */
.btn-primary{
  background:var(--accent);color:#fff;border:none;padding:8px 20px;
  border-radius:var(--radius);font-size:14px;transition:background .2s;
}
.btn-primary:hover{background:var(--accent-hover)}
.btn-outline{
  background:var(--surface);color:var(--fg);border:1px solid var(--border);
  padding:8px 16px;border-radius:var(--radius);font-size:13px;
}
.btn-outline:hover{background:var(--bg)}
.btn-ghost{background:none;border:none;color:var(--muted);padding:4px 8px;font-size:13px}
.btn-ghost:hover{color:var(--fg)}
.btn-icon{background:none;border:none;font-size:18px;padding:4px 8px;color:var(--fg);display:none}
.btn-sm{padding:4px 10px;font-size:12px;white-space:nowrap}
.btn-full{width:100%;padding:12px;font-size:15px}
.btn-danger{background:var(--danger);color:#fff;border:none;padding:4px 12px;border-radius:var(--radius);font-size:12px}
.btn-danger:hover{background:var(--danger-hover)}
.btn-success{background:var(--success);color:#fff;border:none;padding:4px 12px;border-radius:var(--radius);font-size:12px}

/* === Toggle Switch === */
.toggle-switch{position:relative;display:inline-block;width:44px;height:24px}
.toggle-switch input{opacity:0;width:0;height:0}
.toggle-slider{
  position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;
  background:#ccc;border-radius:24px;transition:.3s;
}
.toggle-slider::before{
  content:"";position:absolute;height:18px;width:18px;left:3px;bottom:3px;
  background:#fff;border-radius:50%;transition:.3s;
}
.toggle-switch input:checked + .toggle-slider{background:var(--accent)}
.toggle-switch input:checked + .toggle-slider::before{transform:translateX(20px)}

/* === Tags === */
.tag{padding:2px 8px;border-radius:10px;font-size:12px}
.tag-active{background:#e6f7e9;color:#17a34a}
.tag-banned{background:#fde8e8;color:#dc2626}

/* === Login === */
.login-page{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);
}
.login-card{
  background:var(--surface);padding:40px;border-radius:12px;width:100%;max-width:380px;
  box-shadow:0 8px 32px rgba(0,0,0,.15);
}
.login-card h1{font-size:22px;text-align:center;margin-bottom:4px}
.login-subtitle{text-align:center;color:var(--muted);margin-bottom:28px;font-size:13px}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:6px;font-size:13px;color:#555}
.form-group input{
  width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);
  font-size:14px;transition:border-color .2s;
}
.form-group input:focus{outline:none;border-color:var(--accent)}
.form-group input.input-readonly{background:#f5f5f5;color:var(--muted);cursor:not-allowed}
.form-group input.input-readonly:focus{border-color:var(--border)}
.modal-subtitle{margin:-6px 0 16px;font-size:13px;color:var(--muted)}
.form-error{color:var(--danger);font-size:13px;text-align:center;margin-top:12px;min-height:20px}

/* === App Layout === */
.app-layout{display:flex;min-height:100vh}

/* === Sidebar === */
.sidebar{
  width:var(--sidebar-width);background:var(--sidebar-bg);
  color:#fff;flex-shrink:0;position:fixed;top:0;left:0;bottom:0;
  overflow-y:auto;z-index:100;
}
.sidebar-logo{
  height:var(--topbar-height);display:flex;align-items:center;
  padding:0 20px;font-size:16px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.1);
}
/* === Sidebar SVG === */
.logo-svg{width:24px;height:24px;margin-right:10px;color:var(--accent)}
.nav-svg{width:18px;height:18px;margin-right:10px;flex-shrink:0}
.sidebar-nav{padding:8px 0}
.nav-item{
  display:flex;align-items:center;padding:12px 24px;color:rgba(255,255,255,.65);
  transition:all .2s;font-size:14px;border-left:3px solid transparent;
}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-item.active{color:#fff;background:rgba(255,255,255,.1);border-left-color:var(--accent)}
.nav-icon{margin-right:10px;font-size:16px;width:20px;text-align:center}

/* === Topbar === */
.main-area{margin-left:var(--sidebar-width);flex:1;display:flex;flex-direction:column}
.topbar{
  height:var(--topbar-height);background:var(--surface);
  display:flex;align-items:center;padding:0 24px;gap:12px;
  box-shadow:var(--shadow);position:sticky;top:0;z-index:50;
}
.topbar-title{font-size:15px;font-weight:500}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.topbar-user{font-size:13px;color:var(--muted)}

/* === Content === */
.content{padding:24px;flex:1}

/* === Page === */
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-title{font-size:18px;font-weight:600}

/* === Table Card === */
.table-card{
  background:var(--surface);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px;
}

/* === Filter Bar === */
.filter-bar{display:flex;gap:8px;align-items:center}
.search-input{
  padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);
  font-size:13px;width:240px;
}
.search-input:focus{outline:none;border-color:var(--accent)}

/* === Data Table === */
.table-wrap{overflow-x:auto}
.data-table{width:100%;border-collapse:collapse;font-size:13px}
.data-table th{
  text-align:left;padding:12px;background:#fafafa;color:var(--muted);
  font-weight:500;border-bottom:1px solid var(--border);white-space:nowrap;
}
.data-table td{padding:12px;border-bottom:1px solid var(--border)}
.data-table tbody tr:hover{background:#fafafa}
.data-table .cell-remark{max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted)}
.table-empty{text-align:center;color:var(--muted);padding:40px!important;}

/* === Pagination === */
.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:20px}
.pagination button{
  padding:6px 12px;border:1px solid var(--border);background:var(--surface);
  border-radius:var(--radius);font-size:13px;cursor:pointer;
}
.pagination button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.pagination button:disabled{opacity:.4;cursor:default}
.pagination .page-info{font-size:13px;color:var(--muted);padding:0 8px}
.pagination .page-current{
  background:var(--accent);color:#fff;border-color:var(--accent);
}

/* === Config Cards === */
.config-cards{display:flex;flex-direction:column;gap:16px}
.config-card{
  background:var(--surface);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.config-card-body{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;gap:16px;
}
.config-card-info{flex:1}
.config-name{display:block;font-size:14px;font-weight:500;margin-bottom:4px}
.config-desc{display:block;font-size:12px;color:var(--muted)}
.config-card-foot{
  display:flex;align-items:center;gap:12px;
  padding:0 24px 16px;
}
.config-card-foot .btn-sm{padding:6px 16px;font-size:13px}
.cfg-msg{font-size:12px}
.cfg-msg.ok{color:var(--success)}
.cfg-msg.err{color:var(--danger)}
.config-input{
  width:320px;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:13px;
}
.config-input:focus{outline:none;border-color:var(--accent)}
.config-input-sm{width:120px}

/* === Modal === */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.45);
  display:flex;align-items:center;justify-content:center;z-index:200;
}
.modal-card{
  background:var(--surface);border-radius:var(--radius);
  padding:28px;width:100%;max-width:420px;box-shadow:0 8px 32px rgba(0,0,0,.15);
}
.modal-card h3{margin-bottom:20px;font-size:16px}
.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}

/* === Action Buttons === */
/* 行内操作按钮组：不允许文字竖排换行，放不下时整排换行且按钮不被拉伸 */
.actions{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.actions button{white-space:nowrap;flex:0 0 auto}

/* === Toast === */
.toast-container{position:fixed;top:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:8px}
.toast{
  padding:12px 20px;border-radius:var(--radius);font-size:13px;
  box-shadow:0 4px 12px rgba(0,0,0,.1);animation:slideIn .3s ease;
  max-width:360px;
}
.toast-success{background:#e6f7e9;color:#17a34a;border:1px solid #b7ebc5}
.toast-error{background:#fde8e8;color:#dc2626;border:1px solid #f5b7b7}
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* === Responsive === */
@media (max-width:768px){
  .sidebar{transform:translateX(-100%);transition:transform .3s}
  .sidebar.open{transform:translateX(0)}
  .main-area{margin-left:0}
  .btn-icon{display:block}
  .config-card-body{flex-direction:column;align-items:flex-start}
  .config-input,.config-input-sm{width:100%}
  .search-input{width:100%}
  .filter-bar{flex-direction:column}
  .content{padding:16px}
  .table-card{padding:16px}
}