/* 98597.info — Press proof. A Bangkok print-shop proofing desk: vellum ground, glyph-metric guides in non-photo blue,
   red proofreader's marks, Thai numerals, and the roulette on a self-healing cutting mat.
   Taviraj (display, Cadson Demak's high-contrast Thai/Latin serif) + Noto Sans Thai (reading) + Chivo Mono (Latin labels). */
:root{
  color-scheme:light;
  --vellum:#E9ECE6;--vellum-2:#DFE3DC;--sheet:#FAFAF6;--ink:#15161A;--text:#25272C;--muted:#535861;
  --guide:#9CCBDD;--guide-2:#C9E2EB;--guide-d:#236A8A;--proof:#C3311A;--proof-2:#E0482E;
  --mat:#1C5845;--mat-d:#123E31;--mat-t:#E6F0EA;--hl:#EFE35C;--hl-2:#F6EEA0;
  --font-head:"Taviraj","Noto Sans Thai",Georgia,serif;
  --font-body:"Noto Sans Thai","Noto Sans",system-ui,sans-serif;
  --mono:"Chivo Mono","Noto Sans Thai",ui-monospace,Menlo,Consolas,monospace;
  --gut:16px;--max:1240px;--hd:64px;
  /* game runtime tokens */
  --surface:#FAFAF6;--surface-2:#EEF1EB;--border:rgba(21,22,26,.16);--heading:#15161A;--primary:#15161A;--primary-contrast:#FAFAF6;--accent:#EFE35C
}
@media (min-width:768px){:root{--gut:28px}}
@media (min-width:1200px){:root{--gut:40px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--hd) + 16px);background:var(--ink)}
@media (min-width:980px){html{scroll-padding-top:20px}}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--vellum);color:var(--text);font:400 1.0625rem/1.8 var(--font-body);overflow-x:clip;text-rendering:optimizeLegibility}
html:lang(en) body{line-height:1.68}
img,svg,canvas{max-width:100%}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3{font-family:var(--font-head);color:var(--ink);margin:0;font-weight:600;text-wrap:balance}
:focus-visible{outline:3px solid var(--proof);outline-offset:3px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gut)}
.skip{position:absolute;left:12px;top:-80px;z-index:100;background:var(--ink);color:var(--sheet);padding:12px 18px;font-weight:600;text-decoration:none}
.skip:focus{top:12px}

/* ---------- ruler strip ---------- */
.ruler{height:14px;background:
  repeating-linear-gradient(90deg,rgba(250,250,246,.75) 0 1px,transparent 1px 80px) 0 100%/100% 12px no-repeat,
  repeating-linear-gradient(90deg,rgba(250,250,246,.55) 0 1px,transparent 1px 40px) 0 100%/100% 8px no-repeat,
  repeating-linear-gradient(90deg,rgba(250,250,246,.35) 0 1px,transparent 1px 8px) 0 100%/100% 5px no-repeat,var(--ink)}

/* ---------- header ---------- */
.hd{position:sticky;top:0;z-index:40;background:var(--sheet);border-bottom:1px solid var(--ink)}
.hd-row{display:flex;align-items:center;gap:10px;min-height:var(--hd)}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);min-height:44px;margin-right:auto;min-width:0}
.brand-cell{position:relative;flex:0 0 auto;width:44px;height:44px;display:grid;place-items:center;border:1.5px solid var(--ink);background:
  linear-gradient(var(--guide),var(--guide)) 0 28%/100% 1px no-repeat,linear-gradient(var(--guide),var(--guide)) 0 76%/100% 1px no-repeat,
  linear-gradient(var(--guide-2),var(--guide-2)) 50% 0/1px 100% no-repeat,var(--sheet)}
.brand-cell b{position:relative;font:italic 600 21px/1 var(--font-head);letter-spacing:-.02em}
.brand-cell::after{content:"";position:absolute;right:-5px;top:-5px;width:10px;height:10px;border-radius:50%;background:var(--proof)}
.brand-txt{display:grid;line-height:1.1;min-width:0}
.brand-name{font:600 1.3rem/1.1 var(--font-head)}
.brand-tag{font-size:.8125rem;color:var(--muted);line-height:1.3}
html:lang(en) .brand-tag{font:400 .72rem/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase}

.menu-btn{order:3;display:inline-flex;align-items:center;gap:8px;min-height:44px;min-width:44px;padding:0 12px;border:1.5px solid var(--ink);background:var(--sheet);color:var(--ink);font:600 .95rem/1 var(--font-body);cursor:pointer}
.menu-ico{display:grid;gap:4px;width:18px}
.menu-ico i{display:block;height:2px;background:currentColor;transition:transform .2s,opacity .2s}
.menu-ico i:nth-child(2){width:12px;background:var(--proof)}
.hd.is-open .menu-btn{background:var(--ink);color:var(--sheet)}
.hd.is-open .menu-ico i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.hd.is-open .menu-ico i:nth-child(2){opacity:0}
.hd.is-open .menu-ico i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.lsw{display:flex}
.lsw a{display:grid;place-items:center;min-width:44px;min-height:44px;padding:0 8px;text-decoration:none;font:400 .8rem/1 var(--mono);letter-spacing:.06em;color:var(--ink);border:1px solid var(--guide);margin-left:-1px}
.lsw a[aria-current]{background:var(--ink);color:var(--sheet);border-color:var(--ink);position:relative;z-index:1}
.lsw a:hover:not([aria-current]){background:var(--guide-2)}
.lsw-hd{order:2}
.hd-cta{display:none}

.nav{display:none}
.nav ol{list-style:none;margin:0;padding:0;counter-reset:nv}
.nav li{counter-increment:nv}
.nav a{display:flex;align-items:center;gap:14px;min-height:52px;text-decoration:none;color:var(--ink);font-weight:500}
.nav a::before{content:counter(nv,decimal-leading-zero);flex:0 0 auto;font:italic 500 1.1rem/1 var(--font-head);color:var(--proof);min-width:1.6em}
html:lang(th) .nav a::before{content:counter(nv,thai)}
.nav a[aria-current]{font-weight:700}
.nav a[aria-current] span{background:linear-gradient(transparent 58%,var(--hl) 58% 90%,transparent 90%)}

@media (max-width:979.98px){
  .hd.is-open .nav{display:block;position:absolute;left:0;right:0;top:100%;background:var(--sheet);border-bottom:1.5px solid var(--ink);box-shadow:0 18px 30px rgba(21,22,26,.18);max-height:calc(100vh - var(--hd) - 14px);overflow:auto}
  .hd.is-open .nav ol{padding:6px 0 14px}
  .nav li+li{border-top:1px solid var(--guide-2)}
  .nav a{font-size:1.05rem}
}
@media (max-width:399.98px){.menu-t{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.brand-tag{display:none}.menu-btn{padding:0 12px}}
@media (min-width:980px){
  .hd{position:relative}
  .menu-btn{display:none}
  .hd-row{min-height:72px;gap:14px}
  .hd-cta{order:3;display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:0 18px;background:var(--ink);color:var(--sheet);text-decoration:none;font-weight:600}
  .hd-cta .dot{width:12px;height:12px;border-radius:50%;border:2px solid var(--hl)}
  .hd-cta:hover{background:var(--proof)}
  .nav{display:block;border-top:1px solid var(--ink);background:var(--sheet)}
  .nav ol{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);border-left:1px solid var(--guide)}
  .nav li{border-right:1px solid var(--guide)}
  .nav a{flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:2px;min-height:60px;padding:8px 12px 10px;font-size:.92rem;line-height:1.35;height:100%}
  .nav a::before{font-size:.95rem}
  .nav a:hover{background:var(--guide-2)}
  .nav a[aria-current]{box-shadow:inset 0 -3px 0 var(--proof)}
}

/* ---------- buttons, chips ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:10px 22px;border:1.5px solid var(--ink);text-decoration:none;font:600 1rem/1.3 var(--font-body);cursor:pointer;transition:background .15s,color .15s,border-color .15s}
.btn-ink{background:var(--ink);color:var(--sheet)}
.btn-ink:hover{background:var(--proof);border-color:var(--proof)}
.btn-line{background:transparent;color:var(--ink)}
.btn-line:hover{background:var(--sheet)}
.btn-hl{background:var(--hl);color:var(--ink);border-color:var(--hl)}
.btn-hl:hover{background:var(--sheet);border-color:var(--sheet)}
.btn-sm{min-height:46px;padding:8px 16px;font-size:.95rem}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.chips li{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border:1px solid currentColor;font-size:.875rem;line-height:1.45}
.chips li::before{content:"";width:8px;height:8px;border-radius:50%;border:1.5px solid var(--hl);flex:0 0 auto}

/* ---------- home: specimen poster ---------- */
.spec{padding:28px 0 56px;background:
  linear-gradient(var(--guide-2),var(--guide-2)) 0 100%/100% 1px no-repeat}
.spec-tag{display:flex;align-items:center;gap:12px;margin:0 0 8px;font-size:.9rem;color:var(--muted)}
.spec-tag::before{content:"";flex:0 0 auto;width:14px;height:14px;border-radius:50%;border:2px solid var(--proof)}
.spec-tag::after{content:"";flex:1;height:1px;background:var(--guide)}
html:lang(en) .spec-tag{font:400 .78rem/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.spec-word{position:relative;font:italic 500 clamp(104px,26vw,360px)/1 var(--font-head);color:var(--ink);letter-spacing:-.02em;margin:0 0 .12em;user-select:none;height:1.08em}
.spec-word .w{position:relative;display:flex;justify-content:flex-start;height:100%;align-items:center}
.spec-word .w span{position:relative;display:block;line-height:1}
.spec-word .g{position:absolute;left:0;right:0;height:1px;background:var(--guide);transform-origin:0 50%}
.spec-word .g::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--guide)}
.spec-word .g-asc{top:.15em}
.spec-word .g-x{top:.42em;background:var(--guide-2)}
.spec-word .g-x::after{background:var(--guide-2)}
.spec-word .g-base{top:.86em;background:var(--guide-d);height:1.5px}
.spec-word .g-base::after{background:var(--guide-d)}
.spec-word .g-desc{top:1.04em;background:var(--guide-2)}
.spec-word .g-desc::after{display:none}
.marked::after{content:"";position:absolute;left:-.08em;right:-.04em;top:.1em;bottom:.02em;border:.022em solid var(--proof);border-radius:52% 46% 50% 48%/50% 52% 46% 50%;transform:rotate(-9deg)}
.marked::before{content:"";position:absolute;right:-.24em;top:.02em;width:.2em;height:.022em;background:var(--proof);transform:rotate(-38deg);transform-origin:0 50%}
.spec-grid{display:grid;gap:22px}
.spec h1{font-size:clamp(1.9rem,1.2rem + 3.2vw,3.5rem);line-height:1.38;font-weight:600}
html:lang(en) .spec h1{line-height:1.1;letter-spacing:-.015em}
.spec-side{border-top:1.5px solid var(--ink);padding-top:16px}
.lead{font-size:1.125rem;color:var(--text)}
.lead p:last-child{margin-bottom:0}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
@media (min-width:900px){
  .spec{padding:36px 0 72px}
  .spec-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:start}
  .spec-side{margin-top:10px}
}
@media (prefers-reduced-motion:no-preference){
  .spec-word .g{animation:draw 1.1s cubic-bezier(.2,.7,.2,1) both}
  .spec-word .g-x{animation-delay:.12s}.spec-word .g-base{animation-delay:.24s}.spec-word .g-desc{animation-delay:.36s}
  .marked::after{animation:mark .9s .5s cubic-bezier(.3,.7,.3,1) both}
  @keyframes draw{from{transform:scaleX(0)}to{transform:scaleX(1)}}
  @keyframes mark{0%{clip-path:polygon(50% 50%,50% -60%,50% -60%,50% -60%,50% -60%,50% -60%,50% -60%)}25%{clip-path:polygon(50% 50%,50% -60%,160% -60%,160% -60%,160% -60%,160% -60%,160% -60%)}50%{clip-path:polygon(50% 50%,50% -60%,160% -60%,160% 160%,160% 160%,160% 160%,160% 160%)}75%{clip-path:polygon(50% 50%,50% -60%,160% -60%,160% 160%,-60% 160%,-60% 160%,-60% 160%)}100%{clip-path:polygon(50% 50%,50% -60%,160% -60%,160% 160%,-60% 160%,-60% -60%,50% -60%)}}
}

/* ---------- home: cutting mat ---------- */
.mat{position:relative;background:
  repeating-linear-gradient(90deg,rgba(214,238,226,.2) 0 1px,transparent 1px 100px),
  repeating-linear-gradient(0deg,rgba(214,238,226,.2) 0 1px,transparent 1px 100px),
  repeating-linear-gradient(90deg,rgba(214,238,226,.08) 0 1px,transparent 1px 20px),
  repeating-linear-gradient(0deg,rgba(214,238,226,.08) 0 1px,transparent 1px 20px),
  linear-gradient(160deg,var(--mat),var(--mat-d));color:var(--mat-t);padding:44px 0 56px}
.mat::before{content:"";position:absolute;left:0;right:0;top:0;height:12px;background:
  repeating-linear-gradient(90deg,rgba(230,240,234,.7) 0 1px,transparent 1px 100px) 0 0/100% 12px no-repeat,
  repeating-linear-gradient(90deg,rgba(230,240,234,.45) 0 1px,transparent 1px 20px) 0 0/100% 7px no-repeat}
.mat-grid{display:grid;gap:26px}
.mat-k{font:600 clamp(1.6rem,1.2rem + 1.6vw,2.4rem)/1.35 var(--font-head);color:#fff;margin:0}
.mat-sub{margin:4px 0 14px;font-size:.9rem;color:#BFD6CB}
html:lang(en) .mat-sub{font:400 .78rem/1.5 var(--mono);letter-spacing:.06em;text-transform:uppercase}
.mat-cta{font-size:1.05rem;max-width:36ch}
.mat .chips{margin-top:16px}
.mat .chips li{border-color:rgba(230,240,234,.45)}
.mat-sheet{position:relative;min-width:0;background:var(--sheet);box-shadow:0 1px 0 rgba(0,0,0,.2),0 24px 50px -12px rgba(0,0,0,.55)}
.mat-sheet::before,.mat-sheet::after,.crop::before,.crop::after{content:"";position:absolute;width:12px;height:12px;border:0 solid rgba(230,240,234,.8);pointer-events:none}
.mat-sheet::before{left:-11px;top:-11px;border-width:0 1px 1px 0}
.mat-sheet::after{right:-11px;bottom:-11px;border-width:1px 0 0 1px}
.crop::before{right:-11px;top:-11px;border-width:0 0 1px 1px}
.crop::after{left:-11px;bottom:-11px;border-width:1px 1px 0 0}
@media (min-width:1040px){
  .mat{padding:64px 0 80px}
  .mat-grid{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
  .mat-note{position:sticky;top:28px;padding-top:6px}
}

/* ---------- inner page head ---------- */
.phead{padding:22px 0 44px;background:linear-gradient(var(--guide-2),var(--guide-2)) 0 100%/100% 1px no-repeat}
.crumbs ol{list-style:none;margin:0 0 22px;padding:0 0 8px;display:flex;flex-wrap:wrap;align-items:center;gap:2px 10px;font-size:.9rem;color:var(--muted);border-bottom:1px solid var(--guide)}
.crumbs li{display:inline-flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"";width:7px;height:7px;border-top:1.5px solid var(--proof);border-right:1.5px solid var(--proof);transform:rotate(45deg)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);text-decoration:underline;text-decoration-color:var(--guide);text-underline-offset:4px}
.crumbs a:hover{text-decoration-color:var(--proof)}
.crumbs [aria-current] span{color:var(--text)}
.phead-grid{display:grid;gap:30px}
.phead-main{position:relative}
.reg{position:absolute;right:18px;top:0;width:64px;height:64px;border:1.5px solid var(--guide-d);border-radius:50%;pointer-events:none;background:
  linear-gradient(var(--guide-d),var(--guide-d)) 50% 50%/1.5px 100% no-repeat,linear-gradient(var(--guide-d),var(--guide-d)) 50% 50%/100% 1.5px no-repeat}
.reg::before{content:"";position:absolute;inset:14px;border-radius:50%;background:var(--guide-d);clip-path:polygon(0 0,50% 0,50% 50%,100% 50%,100% 100%,50% 100%,50% 50%,0 50%)}
.reg::after{content:"";position:absolute;left:50%;top:50%;width:96px;height:96px;margin:-48px 0 0 -48px;background:
  linear-gradient(var(--guide),var(--guide)) 50% 0/1px 100% no-repeat,linear-gradient(var(--guide),var(--guide)) 0 50%/100% 1px no-repeat}
.phead h1{position:relative;padding-right:84px;font-size:clamp(1.85rem,1.2rem + 2.6vw,3.2rem);line-height:1.4;padding-bottom:14px;margin-bottom:16px;background:
  linear-gradient(var(--guide-d),var(--guide-d)) 0 100%/100% 1.5px no-repeat}
html:lang(en) .phead h1{line-height:1.12;letter-spacing:-.015em}
.phead .lead{position:relative;max-width:40em}
@media (min-width:1000px){
  .phead{padding:28px 0 60px}
  .phead-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:start}
  .phead h1{padding-top:.2em}
}

/* ---------- character-map TOC ---------- */
.cmap{container-type:inline-size;background:var(--sheet);border:1.5px solid var(--ink)}
.cmap-t{margin:0;padding:10px 14px;border-bottom:1.5px solid var(--ink);font-weight:600;color:var(--ink);display:flex;align-items:center;gap:10px}
.cmap-t::before{content:"";width:10px;height:10px;background:var(--proof)}
html:lang(en) .cmap-t{font:400 .78rem/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.cmap ol{list-style:none;margin:0;padding:0;counter-reset:cm;display:grid}
.cmap li{counter-increment:cm;border-bottom:1px solid var(--guide-2)}
.cmap li:last-child{border-bottom:0}
.cmap a{display:grid;grid-template-columns:2.4rem minmax(0,1fr);align-items:baseline;gap:6px;padding:10px 14px;min-height:48px;text-decoration:none;color:var(--ink);font-size:.95rem;line-height:1.5}
.cmap a::before{content:counter(cm,decimal-leading-zero);font:italic 500 1.35rem/1 var(--font-head);color:var(--proof)}
html:lang(th) .cmap a::before{content:counter(cm,thai)}
.cmap a:hover{background:var(--guide-2)}
.cmap a:hover .cm-l{text-decoration:underline;text-decoration-color:var(--proof);text-underline-offset:4px}
.cmap a.on{background:var(--hl-2)}
@container (min-width:420px){
  .cmap-head ol{grid-template-columns:1fr 1fr}
  .cmap-head li{border-right:1px solid var(--guide-2)}
  .cmap-head li:nth-child(2n){border-right:0}
  .cmap-head li:nth-last-child(2):nth-child(odd){border-bottom:0}
  .cmap-head a{grid-template-columns:1fr;align-content:start;gap:8px;min-height:104px;padding:12px 14px 14px;background:
    linear-gradient(var(--guide-2),var(--guide-2)) 0 38px/100% 1px no-repeat}
  .cmap-head a::before{font-size:1.6rem}
}

/* ---------- article ---------- */
.page{display:grid;gap:40px;padding-top:44px;padding-bottom:64px}
.prose{min-width:0;max-width:46rem;counter-reset:sec}
.prose>.intro-rest{margin-bottom:8px}
.sec{counter-increment:sec;margin-top:48px}
.sec-plain{counter-increment:none;margin-top:0}
.prose h2{position:relative;font-size:clamp(1.45rem,1.15rem + 1.2vw,2rem);line-height:1.45;padding-bottom:12px;margin-bottom:20px;border-bottom:1px solid var(--guide)}
html:lang(en) .prose h2{line-height:1.2;letter-spacing:-.01em}
.prose h2::before{content:counter(sec,decimal-leading-zero);display:block;font:italic 500 1.5rem/1.1 var(--font-head);color:var(--proof);margin-bottom:6px}
html:lang(th) .prose h2::before{content:counter(sec,thai)}
.prose h2::after{content:"";position:absolute;left:0;bottom:-1px;width:64px;height:3px;background:var(--ink)}
.faq{counter-increment:sec;margin-top:56px}
.prose h3{font-size:1.2rem;line-height:1.5;margin:1.6em 0 .5em}
html:lang(en) .prose h3{line-height:1.3}
.prose a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--guide-d);text-decoration-thickness:1.5px;text-underline-offset:4px}
.prose a:hover{color:var(--proof);text-decoration-color:var(--proof)}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.2em}
.prose li{margin:.35em 0;padding-left:.2em}
.prose ul li::marker{content:"◦  ";color:var(--proof);font-weight:700}
.prose ol li::marker{color:var(--proof);font:italic 600 1em var(--font-head)}
.prose strong{color:var(--ink);font-weight:700}
.prose p strong{background:linear-gradient(transparent 62%,var(--hl-2) 62% 94%,transparent 94%)}
.tbl{overflow-x:auto;margin:0 0 1.4em;border:1.5px solid var(--ink);background:var(--sheet)}
.tbl table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:460px}
.tbl th,.tbl td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--guide-2);vertical-align:top}
.tbl th{font-weight:700;color:var(--ink);border-bottom:1.5px solid var(--ink);background:var(--vellum)}
.tbl tr:last-child td{border-bottom:0}
@media (min-width:1100px){
  .page{grid-template-columns:minmax(0,1fr) 300px;gap:64px;padding-top:60px;padding-bottom:88px}
  .prose{padding-left:92px;max-width:none}
  .prose>*{max-width:44rem}
  .prose h2::before{position:absolute;left:-92px;top:.1em;width:70px;text-align:right;font-size:2.4rem;margin:0}
  .prose h2::after{left:-92px;width:70px}
  .margin-in{position:sticky;top:24px}
}

/* faq */
.faq-list{border-top:1.5px solid var(--ink)}
.faq details{border-bottom:1px solid var(--guide)}
.faq summary{display:grid;grid-template-columns:minmax(0,1fr) 44px;align-items:center;gap:12px;min-height:60px;padding:10px 0;cursor:pointer;list-style:none;font-weight:600;color:var(--ink);line-height:1.55}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover .q{text-decoration:underline;text-decoration-color:var(--proof);text-underline-offset:4px}
.pm{position:relative;width:44px;height:44px;border:1.5px solid var(--ink);border-radius:50%}
.pm::before,.pm::after{content:"";position:absolute;left:50%;top:50%;width:14px;height:2px;margin:-1px 0 0 -7px;background:var(--proof);transition:transform .2s}
.pm::after{transform:rotate(90deg)}
.faq details[open] .pm{background:var(--ink)}
.faq details[open] .pm::after{transform:rotate(0)}
.faq details[open] .pm::before{background:var(--hl)}
.faq-a{padding:0 0 18px;border-left:3px solid var(--proof);padding-left:16px;margin-bottom:14px}
.faq-a p:last-child{margin-bottom:0}

/* proof slip (inner demo card) */
.slip{position:relative;background:var(--sheet);border:1.5px solid var(--ink);padding:22px 20px 22px 26px;box-shadow:8px 8px 0 var(--vellum-2)}
.slip::before{content:"";position:absolute;left:10px;top:0;bottom:0;width:1.5px;background:var(--proof)}
.slip strong{display:block;font:600 1.3rem/1.4 var(--font-head);color:var(--ink);margin-bottom:6px;padding-right:40px}
.slip p{font-size:.95rem;color:var(--muted)}
.slip-mark{position:absolute;right:16px;top:16px;width:34px;height:34px;border:2px solid var(--proof);border-radius:50%;transform:rotate(-12deg)}
.slip-mark::after{content:"";position:absolute;left:10px;top:7px;width:8px;height:14px;border:solid var(--proof);border-width:0 2.5px 2.5px 0;transform:rotate(40deg)}
@media (max-width:1099.98px){.margin{max-width:46rem}}

/* CTA band (inner) */
.band{background:
  repeating-linear-gradient(90deg,rgba(214,238,226,.14) 0 1px,transparent 1px 40px),
  repeating-linear-gradient(0deg,rgba(214,238,226,.14) 0 1px,transparent 1px 40px),var(--mat);color:var(--mat-t)}
.band-in{display:grid;gap:18px;padding-top:40px;padding-bottom:40px;align-items:center}
.band p{margin:0;font:500 clamp(1.25rem,1rem + 1vw,1.7rem)/1.55 var(--font-head);color:#fff;max-width:36em}
@media (min-width:860px){.band-in{grid-template-columns:minmax(0,1fr) auto;gap:40px}}

/* ---------- related ---------- */
.rel{background:var(--sheet);border-top:1.5px solid var(--ink);padding:48px 0 60px}
.rel h2{font-size:clamp(1.5rem,1.2rem + 1.2vw,2.1rem);line-height:1.4;margin-bottom:24px;display:flex;align-items:center;gap:14px}
.rel h2::after{content:"";flex:1;height:1px;background:var(--guide)}
.rel-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr));gap:14px}
.rel-list a{container-type:inline-size;display:grid;grid-template-columns:84px minmax(0,1fr);gap:16px;height:100%;padding:14px;border:1.5px solid var(--ink);text-decoration:none;color:var(--text);background:var(--sheet);transition:box-shadow .15s,transform .15s}
.rel-list{counter-reset:rc}
.rel-list li{counter-increment:rc}
.rc-g{display:grid;place-items:center;height:84px;border:1px solid var(--mat-d);font:italic 500 2.6rem/1 var(--font-head);color:#fff;background:
  repeating-linear-gradient(90deg,rgba(214,238,226,.22) 0 1px,transparent 1px 21px),repeating-linear-gradient(0deg,rgba(214,238,226,.22) 0 1px,transparent 1px 21px),var(--mat)}
.rc-g::before{content:counter(rc,decimal-leading-zero)}
html:lang(th) .rc-g::before{content:counter(rc,thai)}
.rc-t{display:grid;gap:4px;align-content:start}
.rc-t strong{font:600 1.1rem/1.45 var(--font-head);color:var(--ink)}
.rc-t span{font-size:.9rem;line-height:1.6;color:var(--muted)}
.rel-list a:hover{box-shadow:6px 6px 0 var(--proof);transform:translate(-2px,-2px)}
.rel-list a:hover .rc-g{background-color:var(--proof);color:var(--hl)}
.rel-list a:hover .rc-g{background:var(--proof)}

/* ---------- footer ---------- */
.ft{background:var(--ink);color:#C9CDC6;padding:40px 0 28px;font-size:.95rem}
.ft a{color:#EEF0EA;text-decoration:none}
.ft a:hover{color:var(--hl)}
.cbar{display:flex;align-items:center;gap:14px;margin-bottom:34px}
.cbar .reg{position:relative;right:auto;top:auto;flex:0 0 auto;width:30px;height:30px;border-color:#EEF0EA;background:
  linear-gradient(#EEF0EA,#EEF0EA) 50% 50%/1.5px 100% no-repeat,linear-gradient(#EEF0EA,#EEF0EA) 50% 50%/100% 1.5px no-repeat}
.cbar .reg::before{inset:7px;background:#EEF0EA}
.cbar .reg::after{width:44px;height:44px;margin:-22px 0 0 -22px;background:linear-gradient(rgba(238,240,234,.5),rgba(238,240,234,.5)) 50% 0/1px 100% no-repeat,linear-gradient(rgba(238,240,234,.5),rgba(238,240,234,.5)) 0 50%/100% 1px no-repeat}
.cbar-p{flex:1;height:22px;background:linear-gradient(90deg,#FAFAF6 0 8%,#C9CDC6 8% 16%,#8A8F88 16% 24%,#3A3D42 24% 32%,var(--proof) 32% 40%,#E58B7B 40% 48%,var(--mat) 48% 56%,#6FA58E 56% 64%,var(--hl) 64% 72%,#F6EEA0 72% 80%,var(--guide-d) 80% 88%,var(--guide) 88% 96%,#FAFAF6 96%)}
.ft-grid{display:grid;gap:28px}
.ft .brand{color:#fff}
.ft .brand-cell{border-color:#EEF0EA;background:linear-gradient(rgba(156,203,221,.4),rgba(156,203,221,.4)) 0 28%/100% 1px no-repeat,linear-gradient(rgba(156,203,221,.4),rgba(156,203,221,.4)) 0 76%/100% 1px no-repeat,var(--ink)}
.ft .brand-tag{color:#AEB3AB}
.ft-about p{margin-top:14px;max-width:42ch;line-height:1.75}
.ft h2{font:600 .95rem/1.4 var(--font-body);color:#fff;margin:0 0 6px;padding-bottom:8px;border-bottom:1px solid rgba(156,203,221,.35)}
html:lang(en) .ft h2{font:400 .76rem/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase}
.ft ul{list-style:none;margin:0;padding:0}
.ft li a{display:inline-flex;align-items:center;min-height:44px}
.ft-base{display:flex;flex-wrap:wrap;align-items:center;gap:14px 18px;margin-top:28px;padding-top:18px;border-top:1px solid rgba(156,203,221,.35)}
.age{display:grid;place-items:center;width:52px;height:52px;border:2px solid var(--proof-2);border-radius:50%;color:#fff;font:italic 600 1.05rem/1 var(--font-head);transform:rotate(-10deg)}
.copy{font:400 .82rem/1.4 var(--mono);color:#AEB3AB}
.lsw-ft{margin-left:auto}
.lsw-ft a{color:#EEF0EA;border-color:rgba(156,203,221,.4)}
.lsw-ft a[aria-current]{background:#EEF0EA;color:var(--ink);border-color:#EEF0EA}
.lsw-ft a:hover:not([aria-current]){background:rgba(156,203,221,.15)}
@media (min-width:760px){.ft-grid{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1fr);gap:40px}}

/* ---------- 404 ---------- */
.nf{padding:40px 0 90px}
.nf-word{font-size:clamp(110px,30vw,300px)}
.nf h1{font-size:clamp(1.8rem,1.3rem + 2vw,2.8rem);line-height:1.4;margin-bottom:10px}
.nf p{max-width:40ch}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}