:root{
  --bg:#0f1219; --panel:#171b26; --panel2:#1e2431; --line:#2a3240;
  --tx:#e6e9f2; --dim:#8b93a7; --acc:#4c8dff; --ok:#22c55e; --warn:#f59e0b; --err:#ef4444;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--tx);
  font:14px/1.55 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:20px;margin:0}
h2{font-size:18px;margin:0 0 4px}
code{background:#0b0e14;padding:1px 6px;border-radius:4px;font-size:12px;color:#9ecbff}
.muted,.dim{color:var(--dim)} .tiny{font-size:12px}
.num{text-align:right;font-variant-numeric:tabular-nums}
.strong{font-weight:700;color:#ffd479}
.empty{padding:26px;text-align:center;color:var(--dim)}
.grow{flex:1}

/* ---------- 布局 ---------- */
.layout{display:flex;min-height:100vh}
.side{width:210px;flex:0 0 210px;background:var(--panel);border-right:1px solid var(--line);
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.brand{padding:18px 16px;font-weight:700;font-size:15px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:8px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 10px var(--ok)}
.side nav{padding:10px 8px;display:flex;flex-direction:column;gap:2px;flex:1}
.side nav a{padding:9px 12px;border-radius:8px;color:var(--dim);font-size:13.5px}
.side nav a:hover{background:var(--panel2);color:var(--tx);text-decoration:none}
.side nav a.on{background:var(--acc);color:#fff;font-weight:600}
.side-foot{padding:12px;border-top:1px solid var(--line);display:flex;
  justify-content:space-between;font-size:11.5px;color:var(--dim)}
.main{flex:1;padding:20px 24px 60px;min-width:0}
.page-head{display:flex;justify-content:space-between;align-items:center;
  gap:16px;margin-bottom:18px;flex-wrap:wrap}
.page-act{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

/* ---------- 卡片 ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:16px;margin-bottom:16px}
.card-h{font-weight:600;margin-bottom:12px;font-size:14px;color:#cfd6e6}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
@media(max-width:1000px){.grid2{grid-template-columns:1fr}}
.note{margin-top:12px;padding:10px 12px;background:#12161f;border:1px solid var(--line);
  border-radius:8px;font-size:12px;color:var(--dim);line-height:1.9}
.note b{color:var(--warn)}

/* ---------- 统计块 ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.stat.warn{border-color:var(--warn)}
.s-label{font-size:12px;color:var(--dim)}
.s-value{font-size:26px;font-weight:700;margin:4px 0;font-variant-numeric:tabular-nums}
.s-sub{font-size:12px;color:var(--dim)}

/* ---------- 按钮/表单 ---------- */
.btn{display:inline-block;padding:7px 13px;border-radius:8px;border:1px solid var(--line);
  background:var(--panel2);color:var(--tx);cursor:pointer;font-size:13px;line-height:1.4}
.btn:hover{border-color:#3d4757;text-decoration:none}
.btn.primary{background:var(--acc);border-color:var(--acc);color:#fff;font-weight:600}
.btn.ok{background:var(--ok);border-color:var(--ok);color:#06240f;font-weight:600}
.btn.danger{background:#3a1d22;border-color:#5b2830;color:#ffb4bd}
.btn.ghost{background:transparent;color:var(--dim)}
.btn.block{display:block;width:100%;text-align:center;margin-top:10px}
.btn.xs{padding:4px 9px;font-size:12px;margin-right:4px}
.btn:disabled{opacity:.45;cursor:not-allowed}
input,select,textarea{width:100%;padding:8px 10px;border-radius:8px;border:1px solid var(--line);
  background:#0d1017;color:var(--tx);font:inherit;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--acc)}
label{display:block;margin-bottom:12px;font-size:12.5px;color:var(--dim)}
label input,label select,label textarea{margin-top:5px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.chk{display:flex;align-items:center;gap:7px;margin-bottom:8px;color:var(--tx)}
.chk input{width:auto;margin:0}
.checks{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.form-act{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:12px}
.inline{display:inline-flex;gap:6px;align-items:center}
.inline-form{display:flex;gap:12px;align-items:flex-end;margin-top:12px;
  padding-top:12px;border-top:1px solid var(--line)}
.filters input,.filters select{width:auto;min-width:110px}
input[type=date]{width:auto}

/* ---------- 表格 ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;color:var(--dim);font-weight:500;font-size:12px;
  padding:8px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:9px 8px;border-bottom:1px solid #222936;vertical-align:top}
.tbl tr:hover td{background:#1a1f2b}
.tbl .ops{white-space:nowrap}
.row-settled{opacity:.55}
.kv{width:100%;border-collapse:collapse;font-size:13px}
.kv th{text-align:left;color:var(--dim);font-weight:400;width:110px;
  padding:7px 0;border-bottom:1px solid #222936;vertical-align:top}
.kv td{padding:7px 0;border-bottom:1px solid #222936}
.raw{background:#0b0e14;border:1px solid var(--line);border-radius:8px;padding:12px;
  font-size:11.5px;overflow:auto;max-height:260px;white-space:pre-wrap;word-break:break-all}
.tag{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11.5px;white-space:nowrap}
.tag.ok{background:rgba(34,197,94,.15);color:#6ee7a0;border:1px solid rgba(34,197,94,.3)}
.tag.no{background:rgba(245,158,11,.14);color:#fcd34d;border:1px solid rgba(245,158,11,.3)}
.tag.err{background:rgba(239,68,68,.14);color:#fca5a5;border:1px solid rgba(239,68,68,.3)}

/* ---------- 提示 ---------- */
.flashes{margin-bottom:14px;display:flex;flex-direction:column;gap:8px}
.flash{padding:10px 13px;border-radius:9px;font-size:13px;border:1px solid}
.flash.ok{background:rgba(34,197,94,.1);border-color:rgba(34,197,94,.35);color:#86efac}
.flash.err{background:rgba(239,68,68,.1);border-color:rgba(239,68,68,.35);color:#fca5a5}
.flash.warn{background:rgba(245,158,11,.1);border-color:rgba(245,158,11,.35);color:#fcd34d}

.chart-box{height:250px}
.speech-box{background:#0d1017;border:1px solid var(--line);border-radius:10px;padding:14px}
.speech{font-size:15px;line-height:2;white-space:pre-wrap;user-select:all}
.tpl-list{display:flex;flex-direction:column;gap:8px}
.tpl{display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:10px 12px;background:var(--panel2);border-radius:9px}
.tpl-main b{display:block;font-size:13.5px}
.qr-box{display:flex;justify-content:center;padding:12px}
.qr-box img{width:230px;height:230px;image-rendering:pixelated;background:#fff;padding:8px;border-radius:10px}
.qr-box.big img{width:260px;height:260px}

/* ---------- 登录 / 收款页 ---------- */
.login-bg,.pay-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1000px 600px at 50% -10%,#1b2436,#0f1219)}
.login-card,.pay-card{width:340px;background:var(--panel);border:1px solid var(--line);
  border-radius:14px;padding:26px}
.pay-card{width:360px;text-align:center}
.pay-card label{text-align:left}
.pay-title{font-size:18px;font-weight:700;margin-bottom:16px}
.pay-title.ok{color:#6ee7a0} .pay-title.err{color:#fca5a5} .pay-title.warn{color:#fcd34d}
.pay-meta{font-size:12.5px;color:var(--dim);line-height:2;margin:12px 0}
.login-card form{margin-top:16px}
/* ---------- 结算文案生成器 ---------- */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(132px,1fr));gap:10px}
.form-grid label{display:block;font-size:12px;color:var(--dim);margin-bottom:4px}
.form-grid input,.form-grid select{width:100%;margin-top:4px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}
.speech-area{width:100%;background:var(--panel2);border:1px solid var(--line);
  border-radius:9px;color:var(--text);padding:12px 14px;font-size:14.5px;line-height:2;
  font-family:inherit;resize:vertical;margin-top:4px}
.speech-area:focus{outline:none;border-color:var(--accent)}
.tpl-edit{margin-top:12px;font-size:12.5px}
.tpl-edit summary{cursor:pointer;color:var(--dim);padding:6px 0}
.tpl-edit summary:hover{color:var(--text)}
.tpl-edit form{margin-top:8px}
.tpl-edit textarea{width:100%;font-family:inherit;line-height:1.7}

/* ---------- 用户管理 ---------- */
.appkey{background:var(--panel2);border:1px solid var(--line);border-radius:6px;
  padding:2px 7px;font-size:12.5px;color:var(--accent);font-family:ui-monospace,Consolas,monospace}
.appkey.big{font-size:14.5px;padding:4px 10px}
.secret{background:var(--panel2);border:1px solid var(--line);border-radius:6px;
  padding:2px 7px;font-size:12.5px;color:var(--dim);font-family:ui-monospace,Consolas,monospace;
  word-break:break-all}
.tbl.kv th{width:96px;color:var(--dim);font-weight:500;font-size:12.5px;
  text-align:right;white-space:nowrap}
.tbl.kv td{text-align:left}
.tbl .acts{white-space:nowrap}
.tbl .acts form{display:inline}
.search-box input{width:230px}
.form-grid-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px 14px}
.form-grid-form .fg{display:flex;flex-direction:column;gap:5px}
.form-grid-form .fg.wide{grid-column:1/-1}
.form-grid-form .fg.act{justify-content:flex-end}
.form-grid-form label{font-size:12px;color:var(--dim)}
.form-grid-form label em{color:var(--err);font-style:normal}
.form-grid-form .ck{display:inline-flex;align-items:center;gap:4px;font-size:12px;white-space:nowrap}
.form-grid-form .ck input{width:auto;margin:0}
.pwd-row{display:flex;gap:6px;align-items:center}
.pwd-row input{flex:1;min-width:0}
.stack{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.stack label{font-size:12px;color:var(--dim)}
.stack input,.stack select{margin-top:0}
.stack button{align-self:flex-start}
.inline-3{display:grid;grid-template-columns:1.2fr .8fr 1.2fr;gap:7px}
.tabs{margin-left:auto;display:flex;gap:4px}
.tabs a{padding:3px 11px;border-radius:7px;font-size:12px;color:var(--dim)}
.tabs a.on{background:var(--accent);color:#fff}
.tag.warn{background:rgba(245,165,36,.15);color:#fcd34d}
.tag.no{background:var(--panel2);color:var(--dim)}
.btn.warn{background:transparent;border-color:#f5a524;color:#fcd34d}
.btn.warn:hover{background:rgba(245,165,36,.12)}
.s-value.ok{color:#6ee7a0} .s-value.err{color:#fca5a5}
.s-value{color:var(--text)}
/* ---------- API 文档 ---------- */
.doc{max-width:960px}
.doc h2{font-size:15px;margin:26px 0 10px;padding-bottom:7px;border-bottom:1px solid var(--line)}
.doc h3{font-size:13.5px;margin:18px 0 8px;color:var(--accent)}
.doc p{line-height:1.85;font-size:13.5px;margin:8px 0}
.doc code{background:var(--panel2);border:1px solid var(--line);border-radius:5px;
  padding:1.5px 6px;font-size:12.5px;color:#7dd3fc;
  font-family:ui-monospace,Consolas,monospace}
.doc pre{background:#0b0e14;border:1px solid var(--line);border-radius:10px;
  padding:14px 16px;overflow-x:auto;margin:10px 0}
.doc pre code{background:none;border:none;padding:0;color:#cbd5e1;font-size:12.5px;line-height:1.75}
.doc table.tbl td code{font-size:12px}
.doc .method{display:inline-block;min-width:52px;text-align:center;font-size:11.5px;
  padding:2px 8px;border-radius:6px;font-weight:600}
.doc .m-post{background:rgba(76,141,255,.16);color:#93c5fd}
.doc .m-get{background:rgba(46,194,126,.16);color:#86efac}
.doc ul{padding-left:20px;line-height:1.95;font-size:13.5px}