:root{
  --bg:#f3f6fb; --bg-2:#eaf0f8; --panel:#ffffff; --panel-2:#f8fafd; --line:#dbe3ee;
  --text:#1f2d3d; --muted:#6b7a90; --heading:#16253a;
  --accent:#2d6cdf; --accent-2:#1b4fa8; --accent-soft:#e8f0ff;
  --gold:#b88a30; --gold-soft:#fbf3df;
  --green:#168a5b; --green-soft:#e7f7ef;
  --red:#c0392b; --red-soft:#fdecea;
  --shadow:0 8px 24px rgba(29,53,87,.08);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; color:var(--text); background:var(--bg);
  font-family:"Microsoft YaHei","PingFang SC",system-ui,-apple-system,sans-serif;
  -webkit-font-smoothing:antialiased;
}
body.auth{
  background:
    linear-gradient(180deg,rgba(243,246,251,.55),rgba(243,246,251,.95) 70%,#eaf0f8),
    radial-gradient(900px 520px at 50% 0%,rgba(45,108,223,.16),transparent 65%),
    url("/client/assets/classic-ui/login/background.png") center/cover no-repeat fixed;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.auth-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;padding:32px 16px}
.auth-card{
  width:min(440px,100%);padding:30px 28px 24px;border-radius:18px;
  background:rgba(255,255,255,.97);
  border:1px solid var(--line);
  box-shadow:0 24px 70px rgba(29,53,87,.16);
}
.brand{text-align:center;margin-bottom:22px}
.brand img{width:190px;max-width:72%;height:auto;filter:drop-shadow(0 8px 22px rgba(45,108,223,.18))}
.brand h1{margin:14px 0 4px;font-size:26px;letter-spacing:3px;color:var(--heading);font-weight:800}
.brand p{margin:0;color:var(--muted);font-size:13px;letter-spacing:1px}
.auth-card h2{font-size:18px;margin:0 0 16px;font-weight:600;color:var(--heading)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:#46566d;margin-bottom:7px}
.field input{
  width:100%;height:46px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--text);padding:0 14px;font-size:15px;outline:none;transition:border-color .15s,box-shadow .15s;
}
.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(45,108,223,.12)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;transition:transform .08s,filter .15s,background .15s;
}
.btn:active{transform:translateY(1px)}
.btn.primary{width:100%;color:#fff;background:linear-gradient(180deg,#3b7bec,#225bc7);box-shadow:0 8px 18px rgba(45,108,223,.22)}
.btn.primary:hover{filter:brightness(1.04)}
.btn.ghost{background:#fff;border-color:var(--line);color:#2b3b51}
.btn.ghost:hover{background:var(--accent-soft);border-color:#bfd3f7}
.btn.danger{background:var(--red-soft);border-color:#efc4bf;color:#a5281d}
.btn.small{height:32px;padding:0 12px;font-size:13px;border-radius:8px}
.toolbar .btn.primary,.table-actions .btn.primary{width:auto}
.auth-note{margin-top:16px;font-size:13px;color:var(--muted);text-align:center;line-height:1.7}
.msg{min-height:20px;font-size:13px;margin:8px 0 14px;color:var(--red)}
.msg.ok{color:var(--green)}
.server-line{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px;margin-bottom:18px;border:1px solid var(--line);border-radius:10px;
  background:var(--panel-2);font-size:12px;color:var(--muted);
}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 10px rgba(22,138,91,.5);margin-right:6px}
.top-link{position:fixed;right:18px;top:14px;font-size:12px;color:var(--muted);opacity:.9}

/* admin shell */
.admin-body{min-height:100%;background:
  radial-gradient(1000px 380px at 12% 0%,rgba(45,108,223,.08),transparent 70%),
  linear-gradient(180deg,#f7f9fd,#eef3fa);
}
.topbar{
  position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:13px 22px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
}
.topbar .title{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:800;letter-spacing:.5px;color:var(--heading)}
.topbar .title small{font-weight:500;color:var(--muted);font-size:12px;letter-spacing:0}
.topbar .who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.layout{display:grid;grid-template-columns:238px minmax(0,1fr);gap:20px;padding:20px;max-width:1560px;margin:0 auto;align-items:start}
.side{position:sticky;top:82px;align-self:start;display:flex;flex-direction:column;gap:6px;max-height:calc(100vh - 102px);min-height:0;overflow-y:auto;overflow-x:hidden;padding:2px 6px 8px 0;scrollbar-width:thin;scrollbar-color:#b7c5d8 transparent;scrollbar-gutter:stable}
.side::-webkit-scrollbar{width:7px}
.side::-webkit-scrollbar-thumb{background:#c4d1e2;border-radius:8px}
.side-filter{flex:0 0 auto;width:100%;height:36px;margin-bottom:8px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:10px;padding:0 11px;font-size:13px;outline:none}
.side-filter:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(45,108,223,.1)}
.side-section{flex:0 0 auto;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.78);margin-bottom:8px;overflow:hidden}
.side-section summary{cursor:pointer;padding:10px 12px;color:#41526a;font-size:12px;font-weight:800;letter-spacing:.6px;list-style:none;user-select:none;background:#f8fafd}
.side-section summary::-webkit-details-marker{display:none}
.side-section summary:after{content:"▾";float:right;color:#93a3b8;font-weight:400}
.side-section:not([open]) summary:after{content:"▸"}
.tab{
  display:flex;align-items:center;gap:9px;width:100%;padding:9px 11px;border-radius:9px;border:1px solid transparent;
  background:transparent;color:#4d5f77;font-size:13px;text-align:left;cursor:pointer;transition:background .15s,color .15s;
}
.tab:hover{background:var(--accent-soft);color:var(--accent-2)}
.tab.active{background:var(--accent-soft);border-color:#c5d8fa;color:var(--accent-2);font-weight:800}
.side-section .tab{flex:0 0 auto;margin:0 5px 5px;width:calc(100% - 10px);min-height:36px;padding:8px 10px;font-size:13px;line-height:18px;overflow:visible}
.side-section .tab:first-of-type{margin-top:0}
.main{min-width:0;max-width:100%}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:2px 0 16px}
.page-head h2{margin:0;font-size:22px;letter-spacing:.5px;color:var(--heading)}
.page-head p{margin:5px 0 0;color:var(--muted);font-size:13px;line-height:1.6}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:18px}
.card{padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow)}
.card .k{font-size:12px;color:var(--muted);margin-bottom:8px;letter-spacing:.5px}
.card .v{font-size:25px;font-weight:800;color:var(--heading);line-height:1.05}
.card .s{font-size:11px;color:#8c9aae;margin-top:7px}
.panel{border:1px solid var(--line);border-radius:14px;background:var(--panel);box-shadow:var(--shadow);overflow:hidden;margin-bottom:18px;min-width:0}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-bottom:1px solid var(--line);background:#fbfcfe}
.panel-head h3{margin:0;font-size:15px;letter-spacing:.3px;color:var(--heading)}
.panel-body{padding:15px 16px;min-width:0;overflow-wrap:anywhere}
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.toolbar input[type=search],.toolbar input[type=text],.toolbar input[type=password],.toolbar select{
  height:34px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:0 10px;font-size:13px;outline:none
}
.toolbar input[type=search]{width:230px}
.toolbar input:focus,.toolbar select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(45,108,223,.1)}
.table-scroll{max-width:100%;overflow:auto;border-radius:10px;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;font-size:13px;background:#fff}
th,td{padding:11px 10px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:middle;overflow-wrap:anywhere}
th{color:#5d6d84;font-weight:800;font-size:12px;letter-spacing:.4px;background:#f5f8fc;position:sticky;top:0;z-index:1}
tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#f8fbff}
td.mono,.mono{font-family:Consolas,ui-monospace,monospace;font-size:12px}
.muted{color:var(--muted)}
.tag{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;border:1px solid #d4ddeb;color:#4d5f77;background:#f8fafd;white-space:nowrap}
.btn{white-space:nowrap}
#activity-center-rows td:nth-child(3),#activity-center-rows td:nth-child(4),#activity-center-rows td:nth-child(6){white-space:nowrap}
#activity-center-rows th:nth-child(3){width:88px}
#activity-center-rows th:nth-child(4){width:154px}
#activity-center-rows th:nth-child(6){width:74px}
.tag.green{color:var(--green);border-color:#b9e2cf;background:var(--green-soft)}
.tag.red{color:var(--red);border-color:#efc4bf;background:var(--red-soft)}
.tag.gold{color:#8a651a;border-color:#ebd7a9;background:var(--gold-soft)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;min-width:0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;min-width:0}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;min-width:0}
.grid2>*,.grid3>*,.grid4>*{min-width:0}
.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
.form-row label{font-size:12px;color:#5d6d84}
.form-row input,.form-row textarea,.form-row select{
  border:1px solid var(--line);background:#fff;color:var(--text);border-radius:9px;padding:9px 10px;font-size:14px;outline:none;font-family:inherit
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(45,108,223,.1)}
.form-row textarea{min-height:94px;resize:vertical}
.notice{font-size:12px;color:var(--muted);line-height:1.7;margin:6px 0}
.chat-list{max-height:620px;overflow:auto;display:flex;flex-direction:column;gap:8px}
.chat-item{padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:#fbfcfe;font-size:13px}
.chat-item .meta{font-size:11px;color:#8c9aae;margin-bottom:4px}
.login-panel{max-width:430px;margin:10vh auto;padding:0 16px}
.toast{position:fixed;right:18px;bottom:18px;z-index:100;padding:12px 16px;border-radius:10px;background:#fff;border:1px solid var(--line);color:var(--text);font-size:13px;box-shadow:0 14px 40px rgba(29,53,87,.2);opacity:0;transform:translateY(8px);transition:.2s}
.toast.show{opacity:1;transform:none}
.hidden{display:none!important}

.role-info{margin-top:12px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#f8fafd;font-size:13px;line-height:1.7}
.role-info b{color:var(--heading)}
.item-select{width:100%;margin-top:10px;min-height:150px;background:#fff;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:6px;font-size:13px;outline:none}
.item-select option{padding:5px 6px}
.inline-label{display:flex;align-items:center;gap:7px;font-size:13px;color:#4d5f77}
.inline-label input{width:100px;height:34px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:0 8px}
.inline-label input[type=checkbox]{width:18px;height:18px;min-width:18px;padding:0;accent-color:var(--accent)}
.switch-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:9px}
.switch-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff}
.switch-row label{display:flex;align-items:center;gap:9px;font-size:14px;color:#2b3b51;cursor:pointer}
.switch-row input{width:18px;height:18px;accent-color:var(--accent)}
.price-input{width:110px;height:32px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:0 8px}
.currency-select{height:32px;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:0 6px}
.table-actions{display:flex;gap:6px;white-space:nowrap;flex-wrap:wrap}

/* feature helpers */
.form-section-title{margin:16px 0 8px;color:var(--heading);font-size:14px;font-weight:800}
.reward-summary{font-size:12px;color:#40516a;line-height:1.6;margin-bottom:6px;max-width:420px}
.reward-chip-list{display:flex;flex-wrap:wrap;gap:8px;min-height:34px;padding:8px;border:1px dashed var(--line);border-radius:10px;background:#fbfcfe}
.reward-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 8px;border:1px solid #d8e4f6;border-radius:999px;background:#fff;font-size:12px;color:#2b3b51;box-shadow:0 1px 2px rgba(29,53,87,.04)}
.reward-chip .reward-qty{width:58px;height:26px;border:1px solid var(--line);border-radius:7px;padding:0 6px;font-size:12px;text-align:center}
.chip-remove{width:20px;height:20px;border:0;border-radius:50%;background:#fdecea;color:#b33a2b;font-size:14px;line-height:18px;cursor:pointer;padding:0}
.chip-remove:hover{background:#f8d7d3}
.chip-note{font-size:11px;color:#8c9aae}
.attr-range{display:flex;align-items:center;gap:6px}
.attr-range input{width:100px;height:32px;border:1px solid var(--line);border-radius:8px;padding:0 8px}
.reward-editor .panel-head{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.reward-editor .panel-body{padding-top:12px}

/* scrollbars */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#c4d1e2;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#aebed4}

@media(max-width:1100px){.layout{grid-template-columns:205px minmax(0,1fr);gap:14px;padding:14px}}
@media(max-width:900px){
  .layout{display:block;padding:10px}
  .side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:6px;max-height:none;overflow:visible;padding:0 0 8px}
  .side-filter{display:none}
  .side-section{display:contents}
  .side-section summary{display:none}
  .side-section .tab{width:100%;margin:0;white-space:normal;padding:9px 8px;font-size:12px;min-height:36px}
  .main{width:100%}
  .grid2,.grid3{grid-template-columns:1fr}
  .page-head{flex-direction:column;align-items:flex-start}
}
@media(max-width:700px){.grid4{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.grid4{grid-template-columns:1fr}}
html,body{max-width:100%;overflow-x:hidden}