:root{--pri:#1D6FE8;--pri2:#1557B8;--ink:#0B1220;--sub:#475467;--line:#E4E7EC;--head:#EEF4FF;--bg:#F9FAFB;--card:#fff;--okc:#067647;--okb:#ECFDF3;--errc:#B42318;--errb:#FEF3F2;--code:#0B1220;--codet:#D6E2FF}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);font-family:"IBM Plex Sans Thai",system-ui,sans-serif;color:var(--ink);font-size:16px;line-height:1.55}
a{color:var(--pri)}
.top{display:flex;justify-content:space-between;align-items:center;max-width:560px;margin:0 auto;padding:14px 16px}
.logo{display:flex;gap:8px;align-items:center;font-weight:700;font-size:17px;color:var(--ink);text-decoration:none}
.logo i{width:32px;height:32px;border-radius:10px;background:var(--pri);color:#fff;display:grid;place-items:center;font-style:normal;font-size:14px}
#nav{display:flex;gap:8px;align-items:center;font-size:14px}
#nav a{text-decoration:none}
main{max-width:560px;margin:0 auto;padding:4px 16px 24px}
.foot{max-width:560px;margin:0 auto;padding:18px 16px 32px;color:var(--sub);font-size:13px;text-align:center}
.foot a{color:var(--sub)}
h1{font-size:24px;margin:6px 0 4px;line-height:1.3}
h2{font-size:18px;margin:22px 0 8px}
.muted{color:var(--sub)}.small{font-size:13px}.center{text-align:center}
.btn{display:block;width:100%;border:0;border-radius:999px;padding:14px;font:600 16px "IBM Plex Sans Thai",sans-serif;color:#fff;background:var(--pri);margin:12px 0;text-align:center;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--pri2)}
.btn.big{padding:18px;font-size:18px}
.btn.ghost{background:#fff;color:var(--pri);border:1px solid var(--line)}
.btn:disabled{opacity:.55;cursor:wait}
.pill{display:inline-block;background:var(--head);color:var(--pri);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:16px;margin:12px 0}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:14px;background:#fff;color:var(--ink);text-decoration:none;cursor:pointer}
.chip:hover{border-color:var(--pri)}
.stepper{display:flex;gap:6px;margin:4px 0 12px}.stepper span{flex:1;height:6px;border-radius:999px;background:var(--line)}.stepper span.d{background:var(--pri)}
.sttl{font-size:13px;color:var(--sub)}
.tabs{display:flex;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px;font-size:14px;margin:12px 0}
.tabs button{flex:1;border:0;background:none;padding:8px 4px;border-radius:999px;color:var(--sub);font:inherit;cursor:pointer}
.tabs button.on{background:var(--head);color:var(--pri);font-weight:600}
input[type=text],input[type=email],input[type=password],input[type=url],textarea{width:100%;border:1px solid var(--line);border-radius:14px;padding:12px;font:inherit;background:#fff;color:var(--ink)}
input:focus,textarea:focus{outline:2px solid var(--pri);outline-offset:-1px}
label{display:block;font-size:14px;color:var(--sub);margin:12px 0 6px}
.drop{border:2px dashed #B7CCF5;background:var(--head);border-radius:20px;padding:26px 14px;text-align:center;color:var(--pri);cursor:pointer;font-weight:600}
.drop small{display:block;color:var(--sub);font-weight:400;margin-top:4px}
.ok{background:var(--okb);color:var(--okc);border-radius:16px;padding:12px 14px;margin:12px 0}
.err{background:var(--errb);color:var(--errc);border-radius:16px;padding:12px 14px;margin:12px 0}
.tl{display:flex;gap:3px;margin:10px 0 4px}.tl span{height:10px;border-radius:999px}
.tll{display:flex;gap:3px;font-size:11px;color:var(--sub)}.tll span{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.photos{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.photos .ph{aspect-ratio:1;border-radius:14px;background:var(--head) center/cover;border:1px dashed #B7CCF5;display:grid;place-items:center;font-size:13px;color:var(--pri);cursor:pointer;position:relative}
.photos .ph b{position:absolute;top:4px;right:4px;background:#0009;color:#fff;border-radius:999px;width:22px;height:22px;display:grid;place-items:center;font-size:12px}
.ask{border:1px solid var(--line);border-radius:16px;padding:10px 12px;margin:8px 0;background:#fff}
.ask .row{display:flex;justify-content:space-between;align-items:center;gap:8px}
.ask small{color:var(--sub);display:block;font-size:12px}
.yn{display:flex;gap:4px;flex-shrink:0}.yn button{white-space:nowrap;border-radius:999px;padding:5px 12px;font:13px "IBM Plex Sans Thai";border:1px solid var(--line);background:#fff;cursor:pointer}
.yn button.on{background:var(--pri);color:#fff;border-color:var(--pri)}
.pc{background:#fff;border:1px solid var(--line);border-radius:20px;padding:14px;margin:12px 0}
.pc .row{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:8px}
.pc .t{font-weight:600}.pc .w{font-size:13px;color:var(--sub)}
.cp{background:var(--pri);color:#fff;border:0;border-radius:999px;padding:8px 16px;font:600 14px "IBM Plex Sans Thai";white-space:nowrap;cursor:pointer}
.cp.done{background:var(--okb);color:var(--okc)}
.code{background:var(--code);color:var(--codet);border-radius:14px;padding:12px;font:12.5px/1.55 Menlo,Consolas,monospace;white-space:pre-wrap;word-break:break-word;max-height:160px;overflow:auto}
.price{text-align:center}.price .old{color:var(--sub);text-decoration:line-through;font-size:18px}.price .now{font-size:40px;color:var(--pri)}
.num{font-family:"Space Grotesk",sans-serif;font-weight:700}
ul.f{text-align:left;padding-left:20px}ul.f li{margin:4px 0}
table{width:100%;border-collapse:collapse;font-size:14px}td,th{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.slip{max-width:100%;border-radius:12px;border:1px solid var(--line);margin:8px 0}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stats .card{margin:0}.stats b{font-size:22px;display:block}
.spin{display:inline-block;width:18px;height:18px;border:3px solid #fff8;border-top-color:#fff;border-radius:50%;animation:s 1s linear infinite;vertical-align:-3px;margin-right:8px}
@keyframes s{to{transform:rotate(360deg)}}
.wait{text-align:center;padding:24px 8px}.wait .spin{border-color:var(--head);border-top-color:var(--pri);width:36px;height:36px;margin:0 0 10px}
details{margin:8px 0}summary{cursor:pointer;color:var(--pri);font-weight:600}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:#fff;border-radius:999px;padding:10px 18px;font-size:14px;opacity:0;transition:opacity .2s;pointer-events:none;max-width:90vw}
#toast.on{opacity:1}
.prose h2{font-size:17px}.prose{font-size:15px}