:root{--accent:#A4492A;--accent-d:#7E3519;--ink:#1E2229;--mut:#6B655E;--line:#E5DFD8;--line2:#EEE9E3;--bg:#F6F4F1;
--mono:"IBM Plex Mono",ui-monospace,Consolas,monospace}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:"IBM Plex Sans Thai",system-ui,sans-serif;color:var(--ink);overflow-x:hidden}
a{color:var(--accent)}a:hover{color:var(--accent-d)}
:focus-visible{outline:3px solid #2B6CB0;outline-offset:2px}
.top{background:var(--ink);color:#fff;padding:10px 32px;min-height:60px;display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.top-title{font-weight:600;font-size:17px}
.top-sub{font-family:var(--mono);font-size:12px;letter-spacing:1px;color:#B9B2AA}
.badge-demo{margin-left:auto;padding:4px 10px;border-radius:12px;background:#F2B33D;color:var(--ink);font-size:13px;font-weight:600}
main{width:100%;max-width:1216px;margin:0 auto;padding:26px 32px 40px;display:flex;flex-direction:column;gap:22px}
.steps{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.steps li{display:flex;gap:12px;align-items:center;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:12px;font-size:15px}
.num{width:30px;height:30px;flex-shrink:0;border-radius:15px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:14px}
.cols{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start}
.chat{flex:1 1 360px;max-width:420px;min-width:0;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 14px 32px rgba(30,34,41,.10)}
.chat-head{height:56px;display:flex;align-items:center;gap:10px;padding:0 16px;border-bottom:1px solid var(--line2)}
.avatar{width:32px;height:32px;border-radius:16px;background:var(--accent)}
.chat-name{display:flex;flex-direction:column}.chat-name strong{font-size:15px;font-weight:600}.chat-name small{font-size:12px;color:var(--mut)}
.chat-body{background:#EFEBE6;padding:16px;display:flex;flex-direction:column;gap:12px;max-height:560px;overflow-y:auto}
.msg{display:flex;flex-direction:column;gap:4px;max-width:100%}
.msg.shop{align-self:flex-end;align-items:flex-end}.msg.bot{align-self:flex-start}
.msg time{font-size:11px;color:var(--mut)}
.bubble{padding:12px;background:#fff;border:1px solid var(--line)}
.shop-b{width:200px;border-radius:14px 14px 4px 14px;display:flex;gap:12px;align-items:center}
.shop-b svg,.shop-b img{width:64px;height:64px;flex-shrink:0;object-fit:cover;border-radius:4px;background:#fff}
.cap{display:flex;flex-direction:column;font-size:12px;color:var(--mut);min-width:0}.cap strong{font-size:14px;color:var(--ink);font-weight:600}
.bot-b{max-width:290px;padding:12px 14px;border-radius:14px 14px 14px 4px;display:flex;flex-direction:column;gap:6px}
.bot-b.bad{border:2px solid #8A2E1F}.bot-b.warn{border:2px solid #B7791F}.bot-b.good{border:2px solid #2F8F63}
.line{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pill{padding:2px 10px;border-radius:10px;font-size:12px;font-weight:700}
.pill.ok{background:#E3F2EA;color:#1B5E3F}.pill.no{background:#FBE9E4;color:#8A2E1F}.pill.warn{background:#FFF1D6;color:#7A4A00}.pill.idle{background:var(--bg);color:var(--ink)}
.code{font-family:var(--mono);font-size:13px}
.big{font-size:15px}.sub{font-size:13px;color:var(--mut)}
.typing{color:var(--mut);font-size:14px}
.right{flex:999 1 520px;min-width:0;display:flex;flex-direction:column;gap:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px}
.try{padding:18px 20px;display:flex;flex-direction:column;gap:12px}
h2{margin:0;font-size:17px;font-weight:700}
.hint{margin:0;font-size:14px;color:var(--mut)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.btn-upload{height:46px;padding:0 20px;border-radius:10px;background:var(--accent);color:#fff;display:flex;align-items:center;font-weight:600;cursor:pointer;position:relative}
.btn-upload:hover{background:var(--accent-d)}
.btn-upload input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}
.btn-upload:has(input:focus-visible){outline:3px solid #2B6CB0;outline-offset:2px}
.chips{display:contents}
.chip,.btn-ghost{padding:8px 12px;border-radius:8px;border:1px solid transparent;background:var(--bg);color:var(--ink);font:inherit;font-family:var(--mono);font-size:13px;cursor:pointer}
.chip:hover,.btn-ghost:hover{border-color:var(--accent)}
.btn-ghost{font-family:inherit;border-color:var(--line);background:#fff}
.dl summary{cursor:pointer;font-size:14px;color:var(--accent);padding:8px 0}
.dl ul{margin:4px 0 0;padding-left:20px;font-size:13px;line-height:1.9}
.db{overflow:hidden}
.db-head{display:flex;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line2)}
.mono-sm{margin-left:auto;font-family:var(--mono);font-size:12px;color:var(--mut)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
th{padding:9px 8px;font-weight:500;background:var(--bg);color:var(--mut);font-size:12px;text-align:left}
th:first-child,td:first-child{padding-left:20px}th:last-child,td:last-child{padding-right:20px}
td{padding:11px 8px;border-top:1px solid var(--line2)}
td.c{font-family:var(--mono);font-size:13px}td.m{color:var(--mut)}
tr.paid{background:#F7FBF8}
tr.flash{animation:flash 2.2s ease-out}
@keyframes flash{0%{background:#FFE9A8}100%{background:#F7FBF8}}
@media (prefers-reduced-motion:reduce){tr.flash{animation:none;background:#FFE9A8}}
.db-foot{padding:12px 20px;border-top:1px solid var(--line2);font-size:13px;color:var(--mut)}
@media (max-width:640px){
  .top{padding:10px 16px}.badge-demo{margin-left:0}
  main{padding:18px 16px 32px}
  .chat{flex-basis:100%;max-width:none}.chat-body{max-height:480px}
  .cols{gap:18px}.right{flex-basis:100%}
}