/* Precision Glass: opaque reading surfaces, glass only at the navigation layer. */
body.precision.precision{
  --ep-navy:#142B5F;--ep-navy-700:#1F56B5;--ep-ink:#182230;--ep-paper-2:#F2F5FA;--ep-line:#CCD7E8;
  --ep-orange:#B54708;--ep-orange-ink:#B54708;--ep-disp:'Anuphan','Sarabun',system-ui,sans-serif;
  --navy:#142B5F;--navy2:#1F56B5;--ink:#182230;--ink2:#46566F;--pink:#B54708;--line:#CCD7E8;
  --disp:'Anuphan','Sarabun',system-ui,sans-serif;
  background:#F2F5FA;color:#182230;overflow-x:visible;font-size:16px;line-height:1.75;
}
body.precision.precision *, body.precision.precision *::before,body.precision.precision *::after{box-sizing:border-box}
body.precision.precision [hidden]{display:none!important}
body.precision.precision h1,body.precision.precision h2,body.precision.precision h3,body.precision.precision header,.pg-discovery,.pg-filters,.pg-toc{font-family:var(--ep-disp)}
body.precision.precision :is(h1,h2,h3){color:#142B5F;letter-spacing:normal}
body.precision.precision :is(a,button,input,select,summary):focus-visible{outline:3px solid #1F56B5;outline-offset:4px}
body.precision.precision footer :is(a,button,input,select,summary):focus-visible{outline-color:#E8F0FF}
body.precision.precision :is(button,select,input,summary,.btn){min-height:44px;min-width:44px}
body.precision.precision .btn{white-space:normal;text-align:center;overflow-wrap:anywhere;line-height:1.5}
body.precision.precision a{overflow-wrap:anywhere}
body.precision.precision .skip{position:fixed;top:8px;left:12px;transform:translateY(-180%);z-index:99999;background:#142B5F;color:#fff;padding:12px 20px;border-radius:8px}
body.precision.precision .skip:focus{transform:none}
body.precision.precision :is(h2,h3,[id]){scroll-margin-top:110px}
body.precision.precision header{position:sticky;top:0;width:100%;max-width:none;margin:0;border-radius:0;background:#fff;border:0;border-bottom:1px solid #CCD7E8;box-shadow:none;z-index:40}
body.precision.precision header .wrap{max-width:1248px;min-height:76px;height:auto;gap:20px}
body.precision.precision header .logo small{color:#46566F;letter-spacing:normal}
body.precision.precision header .logo i{color:#B54708}
body.precision.precision header .sn{margin-left:auto}
body.precision.precision header .sn-top{border-radius:10px}
body.precision.precision header .sn-panel a{min-height:44px}
body.precision.precision header .navbtns{margin-left:0}
body.precision.precision header .navbtns .btn{white-space:normal}
body.precision.precision .pg-search-open,body.precision.precision .pg-search-close,body.precision.precision .pg-search-retry{border:1px solid #ABBBD3;border-radius:12px;background:#fff;color:#142B5F;font:600 1rem var(--ep-disp);padding:8px 18px;cursor:pointer}
.pg-search-open span{font-size:1.4rem;margin-left:12px}
.pg-discovery{background:#E8F0FF;border-bottom:1px solid #CCD7E8}
.pg-discovery-inner{max-width:1200px;margin:auto;padding:16px 24px;display:flex;gap:24px;align-items:center}
.pg-discovery-label{flex:0 0 150px;border-right:1px solid #ABBBD3;padding-right:20px;line-height:1.5;color:#142B5F}
.pg-discovery-label span{display:block;font-size:.78rem;color:#46566F}
.pg-discovery-label strong{font-size:.95rem}
.pg-rail{display:flex;gap:4px;flex:1;min-width:0;margin:0;font-size:1rem}
.pg-rail a{flex:1;min-height:58px;display:flex;flex-direction:column;justify-content:center;padding:5px 12px;border-radius:10px;text-decoration:none;color:#142B5F;white-space:nowrap;line-height:1.5}
.pg-rail a b{font-family:'Plus Jakarta Sans',sans-serif;font-size:.88rem}
.pg-rail small{font-size:.7rem;color:#46566F}
.pg-rail a:hover,.pg-rail a[aria-current]{background:#fff;box-shadow:inset 0 -3px #1F56B5}
.pg-exam-picker{display:none}
.pg-policy-nav{max-width:960px;margin:auto;display:flex;justify-content:space-between;align-items:center;padding:18px 24px;gap:16px;font-size:.9rem}
.pg-policy-nav a{color:#1F56B5}
body.precision.precision main>section{background:transparent}
body.precision.precision main>.hero{background:#F2F5FA;padding:56px 0 36px!important;border-bottom:1px solid #CCD7E8}
body.precision.precision .hero h1{font-size:clamp(2rem,4.3vw,3.6rem);line-height:1.3;max-width:25ch}
body.precision.precision .hero h1 em{color:#B54708}
body.precision.precision .hero .lead{color:#46566F;line-height:1.85}
body.precision.precision .kicker{letter-spacing:normal}
body.precision.precision .hero-img{max-width:360px}
body.precision.precision .hero-img img{min-height:0;max-height:390px;border-radius:24px;mask-image:none;-webkit-mask-image:none;object-position:center 20%}
body.precision.precision .hero-quote{display:none}
body.precision.precision .hero .wrap{gap:44px}
body.precision.precision .hero .acts .btn{border-radius:12px}
body.precision.precision .hero .acts .btn:first-child{background:#142B5F;color:white;box-shadow:none}
body.precision.precision :is(.path,.ex,.book,.pair,.fam,.pkg,.package){background:#fff;border:1px solid #CCD7E8;border-radius:16px;box-shadow:0 4px 12px #142b5f05}
body.precision.precision .path{min-height:300px;border-top:4px solid var(--accent,#142B5F)}
body.precision.precision .path-art{opacity:.28}
body.precision.precision .path h3{font-family:'Plus Jakarta Sans',var(--ep-disp);font-size:1.5rem}
body.precision.precision .pill{border-radius:6px}
body.precision.precision .eb{background:#E8F0FF;border:1px solid #CCD7E8;box-shadow:none}
body.precision.precision :is(.books,.pairs){gap:24px}
body.precision.precision .book{padding:24px}
body.precision.precision .book>img{height:178px;max-width:130px;object-fit:contain;margin-bottom:20px}
body.precision.precision .book h2{font-size:1.2rem}
body.precision.precision .book .price,body.precision.precision .pair .price{font-family:'Plus Jakarta Sans',sans-serif;color:#142B5F}
body.precision.precision .art{max-width:850px;margin:40px auto;padding:36px 48px 48px;background:#fff;border:1px solid #CCD7E8;border-radius:20px}
body.precision.precision .art h1{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.45}
body.precision.precision .art h2{padding-top:24px;margin-top:40px}
body.precision.precision .art p{line-height:1.9}
.pg-toc{margin:28px 0;padding:20px 24px;background:#E8F0FF;border-left:3px solid #1F56B5;border-radius:0 12px 12px 0;color:#142B5F}
.pg-toc ol{margin:12px 0 0!important;padding-left:22px!important}
.pg-toc a{display:block;padding:8px 0;min-height:44px;color:#1F56B5;text-decoration:none}
.pg-toc a:hover{text-decoration:underline}
.pg-table{max-width:100%;overflow-x:auto;margin:18px 0;border:1px solid #CCD7E8;border-radius:8px}
.pg-table table{margin:0!important;min-width:100%}
body.precision.precision td,body.precision.precision th{overflow-wrap:anywhere}
body.precision.precision .pv{max-width:820px;background:#fff;border:1px solid #CCD7E8;border-radius:20px;padding:32px;margin:24px auto 56px}
body.precision.precision .pv a[href^="mailto:"]{white-space:normal;word-break:break-word;max-width:100%}
body.precision.precision .pv .btn[href^="mailto:"]{display:block;font-size:1rem;padding:12px 14px}
body.precision.precision footer{background:#142B5F;color:#fff;backdrop-filter:none;border-top:1px solid #CCD7E8}
body.precision.precision .sf a{display:inline-flex;align-items:center;min-height:44px;padding:6px 0}
.pg-search{width:min(720px,calc(100% - 32px));max-height:calc(100dvh - 40px);padding:28px;border:1px solid #ABBBD3;border-radius:22px;background:#F2F5FA;color:#182230;overflow:auto;box-shadow:0 24px 100px #142b5f40}
.pg-search::backdrop{background:#142b5f99}
.pg-search-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}
.pg-search h2{font-size:1.45rem;margin:0}
.pg-search label{display:block;font-weight:600;margin-bottom:8px}
.pg-search input{width:100%;font:inherit;border:1px solid #6F819E;background:white;border-radius:12px;padding:14px;color:#182230;scroll-margin-top:20px}
.pg-search input::placeholder{color:#46566F;font-size:.9rem}
.pg-search #pg-search-status{font-size:.9rem;color:#46566F}
.pg-search h3{font-size:1rem;border-top:1px solid #CCD7E8;padding-top:20px;margin:20px 0 8px}
.pg-search ul{list-style:none;padding:0;margin:0}
.pg-search li a{display:block;min-height:54px;padding:12px;border-radius:10px;color:#142B5F;background:#fff;margin:6px 0;text-decoration:none;font-weight:600;line-height:1.6}
.pg-search li a:hover{box-shadow:inset 3px 0 #1F56B5;background:#E8F0FF}
.pg-search small{display:block;font-size:.8rem;color:#46566F;font-weight:400}
.pg-search-fallback{display:inline-flex;align-items:center;min-height:44px;margin-top:16px;color:#1F56B5}
.pg-filters{display:flex;align-items:end;flex-wrap:wrap;gap:16px;padding:20px 24px;background:#E8F0FF;border:1px solid #CCD7E8;border-radius:14px;margin-bottom:28px}
.pg-filters label{display:flex;flex-direction:column;gap:6px;min-width:180px;color:#142B5F;font-size:.9rem;font-weight:600}
.pg-filters select{font:inherit;color:#182230;background:white;border:1px solid #6F819E;border-radius:8px;padding:10px 36px 10px 12px}
.pg-filters p{margin:0 0 10px;font-size:.85rem;color:#46566F}
.pg-secondary{max-width:1200px;margin:0 auto;padding:14px 24px 0;text-align:right;font-size:.85rem}
.pg-secondary .btn{background:transparent!important;border:0!important;box-shadow:none!important;color:#1F56B5!important;padding:4px!important;min-height:44px;font-size:.85rem!important;text-decoration:underline}
body.precision.precision header .sn{gap:16px}
body.precision.precision .goal-filter{background:transparent;border:1px solid #CCD7E8;box-shadow:none;border-radius:12px;margin:16px 0 24px;backdrop-filter:none;flex-wrap:wrap;width:auto;justify-content:flex-start}
body.precision.precision .sh{text-align:left;margin-left:0;margin-right:0}
body.precision.precision .sh .kicker{justify-content:flex-start}
body.precision.precision .btn{border-radius:10px;box-shadow:none}
body.precision.precision :is(.path,.ex,.book,.pair,.fam,.pkg,.card,.pl,.week,.acct,.faq details){background:#fff;box-shadow:0 3px 10px #142b5f05;backdrop-filter:none;border-color:#CCD7E8;border-radius:14px}
body.precision.precision .path{border-top:3px solid var(--accent,#142B5F)}
body.precision.precision .eb{background:#E8F0FF;box-shadow:none;backdrop-filter:none}
body.precision.precision .method{background:#142B5F;box-shadow:none;backdrop-filter:none;border-radius:14px}
body.precision.precision .method-note{background:#E8F0FF;box-shadow:none;backdrop-filter:none}
body.precision.precision .books:has(>.book.companion)>.book{flex:0 1 calc((100% - 48px)/3)}
@supports (backdrop-filter:blur(12px)){
 body.precision.precision header{background:rgba(255,255,255,.96);backdrop-filter:blur(16px)}
 .pg-discovery{background:rgba(232,240,255,.96);backdrop-filter:blur(12px)}
}
@media(max-width:1100px){
 body.precision.precision .books:has(>.book.companion)>.book{flex-basis:calc((100% - 24px)/2)}
 .pg-discovery-label{display:none}.pg-discovery-inner{gap:12px}.pg-rail a{padding:5px 8px}
 body.precision.precision header .sn-top{padding:0 8px}body.precision.precision header .wrap{gap:10px}
}
@media(max-width:960px){
 body.precision.precision header .pg-search-open{order:-1}
 body.precision.precision header .wrap{min-height:68px;flex-wrap:nowrap;padding:10px 20px;gap:10px}
 body.precision.precision header .sn{order:3;margin-left:0}body.precision.precision header .navbtns{order:2;margin-left:auto;flex-basis:auto}
 body.precision.precision header .navbtns .btn{flex:none;padding:8px 12px}body.precision.precision header .logo small{display:none}
 body.precision.precision header .sn-toggle{border-radius:10px!important;padding:0 12px!important}
 body.precision.precision header .sn-list{max-height:calc(100dvh - 100px)!important}
 .pg-discovery-inner{padding:12px 20px;justify-content:space-between}
 .pg-rail{display:none}.pg-exam-picker{display:block;position:relative;flex:1;min-width:0}
 .pg-exam-picker summary{display:flex;align-items:center;gap:24px;font-weight:600;color:#142B5F;cursor:pointer}
 .pg-exam-picker summary::after{content:'⌄'}
 .pg-exam-picker nav{position:absolute;top:calc(100% + 12px);left:0;z-index:35;display:grid;grid-template-columns:1fr 1fr;gap:8px;width:min(360px,calc(100vw - 40px));max-height:60vh;overflow:auto;padding:16px;background:#fff;border:1px solid #ABBBD3;border-radius:12px;box-shadow:0 12px 40px #142b5f25;margin:0}
 .pg-exam-picker nav a{min-height:54px;display:flex;flex-direction:column;padding:8px;color:#142B5F;text-decoration:none;line-height:1.5}
 .pg-exam-picker small{color:#46566F}
 body.precision.precision .hero .wrap{grid-template-columns:1fr;gap:24px}body.precision.precision .hero-img{display:none}
 body.precision.precision main>.hero{padding:32px 0!important}
 body.precision.precision .art{margin:24px 20px;padding:28px;max-width:none}
}
@media(max-width:520px){
 body.precision.precision header .sn{margin-left:auto}
 body.precision.precision header .wrap{padding:10px 16px;gap:8px}body.precision.precision header .logo img{width:32px;height:32px}body.precision.precision header .logo{gap:6px}
 body.precision.precision header .logo b,body.precision.precision header .logo .t b{font-size:1rem}
 body.precision.precision header .navbtns .btn{font-size:.78rem;padding:7px 10px}
 body.precision.precision header .sn-toggle{font-size:.85rem!important;padding:0 10px!important}
 body.precision.precision header .sn-toggle::before{display:none!important}
 body.precision.precision .wrap{padding-left:20px;padding-right:20px}
 body.precision.precision main>.hero{padding:28px 0!important}
 body.precision.precision .hero h1{font-size:2rem}body.precision.precision .hero .lead{font-size:1rem}
 body.precision.precision .art{margin:20px 12px;padding:24px 20px;border-radius:14px}
 body.precision.precision .art h1{font-size:1.7rem}body.precision.precision .art .crumb{line-height:1.8}
 body.precision.precision .pv{padding:24px 20px;margin-top:12px;border-radius:14px}
 body.precision.precision .books:has(>.book.companion)>.book{flex-basis:100%;min-width:0}
 .pg-filters{padding:18px;gap:12px}.pg-filters label{width:100%;min-width:0}
 .pg-search{padding:20px;border-radius:16px;width:calc(100% - 20px);max-height:calc(100dvh - 20px)}
 .pg-search h2{font-size:1.2rem}
}
@media(prefers-reduced-motion:reduce){body.precision.precision *, body.precision.precision *::before,body.precision.precision *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(prefers-reduced-transparency:reduce){body.precision.precision header,.pg-discovery{background:#fff;backdrop-filter:none}}
@media(forced-colors:active){body.precision.precision header,.pg-discovery,.pg-search,.pg-filters,.pg-toc{background:Canvas;color:CanvasText;backdrop-filter:none;border:1px solid CanvasText}body.precision.precision :focus-visible{outline:3px solid Highlight}}

/* ======================================================================================
   Glass polish (owner, 24 Oct 2026: "ปรับความโปร่งใส โค้งมนของ UX/UI ให้สวย").
   Softer, rounder surfaces with real translucency. Every reading surface keeps a >= .72
   white fill over a pale field so text contrast never depends on what sits behind it;
   browsers without backdrop-filter get the opaque fills from the rules above.
   ====================================================================================== */
body.precision.precision{
  --pg-r-s:14px;--pg-r:22px;--pg-r-l:28px;
  --pg-fill:rgba(255,255,255,.74);--pg-fill-strong:rgba(255,255,255,.9);--pg-tint:rgba(232,240,255,.72);
  --pg-edge:rgba(255,255,255,.85);--pg-line:rgba(20,43,95,.1);
  --pg-blur:saturate(170%) blur(22px);
  --pg-shadow:inset 0 1px 0 rgba(255,255,255,.95),0 1px 2px rgba(20,43,95,.04),0 12px 32px rgba(20,43,95,.09);
  background:
    radial-gradient(42vmax 42vmax at 4% 0%,rgba(242,107,33,.13),transparent 62%),
    radial-gradient(46vmax 46vmax at 100% 10%,rgba(31,86,181,.14),transparent 60%),
    radial-gradient(38vmax 38vmax at 80% 95%,rgba(181,71,8,.08),transparent 62%),
    radial-gradient(36vmax 36vmax at 6% 90%,rgba(15,118,110,.09),transparent 62%),
    linear-gradient(180deg,#F4F6FB 0,#EEF1F8 100%);
  background-attachment:fixed;
}
body.precision.precision main>.hero{background:transparent;border-bottom:0}
body.precision.precision header{top:10px;width:calc(100% - 24px);max-width:1236px;margin:10px auto 0;border-radius:var(--pg-r-l);
  background:rgba(255,255,255,.96);border:1px solid var(--pg-edge);box-shadow:var(--pg-shadow)}
body.precision.precision header .sn-top,body.precision.precision header .sn-toggle{border-radius:999px}
body.precision.precision header .sn-panel{border-radius:var(--pg-r);background:rgba(255,255,255,.96);border:1px solid var(--pg-edge);box-shadow:0 24px 60px rgba(20,43,95,.18)}
body.precision.precision .pg-search-open,body.precision.precision .pg-search-close,body.precision.precision .pg-search-retry{border-radius:999px;border-color:var(--pg-line);background:rgba(255,255,255,.96)}
.pg-discovery{background:var(--pg-tint);border-bottom:0;margin:0 auto;max-width:1236px;width:calc(100% - 24px);border-radius:var(--pg-r);margin-top:10px;border:1px solid var(--pg-edge)}
.pg-rail a{border-radius:var(--pg-r-s)}
.pg-rail a:hover,.pg-rail a[aria-current]{background:rgba(255,255,255,.92);box-shadow:inset 0 -3px #1F56B5,0 4px 12px rgba(20,43,95,.08)}
.pg-exam-picker nav{border-radius:var(--pg-r);border-color:var(--pg-edge);background:rgba(255,255,255,.96)}
body.precision.precision :is(.path,.ex,.book,.pair,.fam,.pkg,.package,.card,.pl,.week,.acct,.faq details,.compare,.panel,.goal,.ladder,.cta){
  background:var(--pg-fill);border:1px solid var(--pg-edge);border-radius:var(--pg-r);box-shadow:var(--pg-shadow)}
body.precision.precision :is(.path,.card,.book,.pair,.fam):hover{background:var(--pg-fill-strong)}
body.precision.precision .path{border-top:4px solid var(--accent,#142B5F)}
body.precision.precision :is(.art,.pv){background:rgba(255,255,255,.8);border:1px solid var(--pg-edge);border-radius:var(--pg-r-l);box-shadow:var(--pg-shadow)}
body.precision.precision :is(.eb,.method-note,.pg-filters,.pg-toc){background:var(--pg-tint);border:1px solid var(--pg-edge);border-radius:var(--pg-r);box-shadow:var(--pg-shadow)}
.pg-toc{border-left:3px solid #1F56B5}
body.precision.precision .method{border-radius:var(--pg-r);background:rgba(20,43,95,.92);border:1px solid rgba(255,255,255,.18);box-shadow:0 20px 50px rgba(20,43,95,.22)}
body.precision.precision .btn{border-radius:var(--pg-r-s)}
body.precision.precision :is(.btn.outline,.btn.ghost,.btn.quiet,.btn.secondary){background:rgba(255,255,255,.78);border-color:var(--pg-line)}
body.precision.precision .hero .acts .btn{border-radius:999px}
body.precision.precision .pill,body.precision.precision .chips li{border-radius:999px}
body.precision.precision .hero-img img{border-radius:var(--pg-r-l)}
body.precision.precision .goal-filter{padding:4px;gap:4px;border-radius:999px;background:rgba(20,43,95,.06);border:1px solid var(--pg-edge)}
body.precision.precision .gf{border-radius:999px}
body.precision.precision .gf[aria-pressed="true"]{background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.08),0 4px 12px rgba(20,43,95,.12)}
.pg-table{border-radius:var(--pg-r-s);background:rgba(255,255,255,.7)}
.pg-filters select,.pg-search input{border-radius:var(--pg-r-s)}
.pg-search{border-radius:var(--pg-r-l);border-color:var(--pg-edge);background:rgba(242,245,250,.96);box-shadow:0 30px 100px rgba(20,43,95,.3)}
.pg-search li a{border-radius:var(--pg-r-s);background:rgba(255,255,255,.9)}
.pg-search li a:hover{background:#E8F0FF}
body.precision.precision footer{background:rgba(20,43,95,.94);border-top:0;margin-top:48px}
@supports (backdrop-filter:blur(12px)) or (-webkit-backdrop-filter:blur(12px)){
 body.precision.precision header{background:rgba(255,255,255,.72);-webkit-backdrop-filter:var(--pg-blur);backdrop-filter:var(--pg-blur)}
 body.precision.precision header .sn-panel,.pg-exam-picker nav{background:rgba(255,255,255,.86);-webkit-backdrop-filter:saturate(180%) blur(30px);backdrop-filter:saturate(180%) blur(30px)}
 body.precision.precision .pg-search-open,body.precision.precision .pg-search-close,body.precision.precision .pg-search-retry{background:rgba(255,255,255,.7);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
 .pg-discovery{-webkit-backdrop-filter:var(--pg-blur);backdrop-filter:var(--pg-blur)}
 body.precision.precision :is(.path,.ex,.book,.pair,.fam,.pkg,.package,.card,.pl,.week,.acct,.faq details,.compare,.panel,.goal,.ladder,.cta,.art,.pv,.eb,.method-note,.pg-filters,.pg-toc,.method,.goal-filter){
   -webkit-backdrop-filter:var(--pg-blur);backdrop-filter:var(--pg-blur)}
 body.precision.precision :is(.btn.outline,.btn.ghost,.btn.quiet,.btn.secondary){-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
 .pg-search{background:rgba(242,245,250,.88);-webkit-backdrop-filter:saturate(180%) blur(32px);backdrop-filter:saturate(180%) blur(32px)}
 body.precision.precision footer{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}
}
@media(max-width:960px){
 body.precision.precision header{top:8px;width:calc(100% - 16px);margin-top:8px;border-radius:var(--pg-r)}
 .pg-discovery{width:calc(100% - 16px);margin-top:8px;border-radius:var(--pg-r-s)}
}
@media(max-width:520px){
 body.precision.precision :is(.art,.pv){border-radius:var(--pg-r)}
 .pg-search{border-radius:var(--pg-r)}
}
@media(prefers-reduced-transparency:reduce){
 body.precision.precision{background:#F2F5FA}
 body.precision.precision :is(header,.path,.ex,.book,.pair,.fam,.pkg,.package,.card,.pl,.week,.acct,.faq details,.compare,.panel,.goal,.ladder,.cta,.art,.pv,.goal-filter,.btn.outline,.btn.ghost,.btn.quiet,.btn.secondary),
 body.precision.precision header .sn-panel,.pg-exam-picker nav,.pg-search,.pg-search li a,.pg-table{background:#fff;-webkit-backdrop-filter:none;backdrop-filter:none}
 body.precision.precision :is(.eb,.method-note,.pg-filters,.pg-toc),.pg-discovery{background:#E8F0FF;-webkit-backdrop-filter:none;backdrop-filter:none}
 body.precision.precision .method,body.precision.precision footer{background:#142B5F;-webkit-backdrop-filter:none;backdrop-filter:none}
}
@media(forced-colors:active){
 body.precision.precision :is(header,.path,.ex,.book,.pair,.fam,.pkg,.package,.card,.pl,.week,.acct,.faq details,.art,.pv,.eb,.method,.method-note,.goal-filter),.pg-discovery,.pg-search,.pg-filters,.pg-toc{background:Canvas;color:CanvasText;backdrop-filter:none;border:1px solid CanvasText}
}

/* Balance pass (owner, 24 Oct 2026: "จัดวางตำแหน่ง จัดให้สมดุล แบบ iOS 27"). */
body.precision.precision header .logo b,body.precision.precision header .logo .t b{white-space:nowrap}
body.precision.precision header .logo{flex:none}
body.precision.precision header .sn-top{border:1px solid var(--pg-line);background:rgba(255,255,255,.7);padding:0 16px}
body.precision.precision header .sn-top:hover{background:rgba(255,255,255,.92)}
.pg-discovery-inner{padding:10px 16px;gap:16px}
.pg-discovery-label{flex:0 0 auto;padding-right:16px;margin-right:4px}
.pg-rail{justify-content:space-between;gap:6px}
.pg-rail a{flex:1 1 0;min-height:54px;align-items:center;text-align:center;padding:4px 10px}
.pg-rail a b{letter-spacing:.01em}
.pg-exam-picker,.pg-exam-picker summary{border:0;background:none;padding:0;margin:0;box-shadow:none}
.pg-exam-picker summary{justify-content:space-between;min-height:44px;list-style:none}
.pg-exam-picker summary::-webkit-details-marker{display:none}
body.precision.precision .hero h1,body.precision.precision .sh h2,body.precision.precision .art h1{text-wrap:balance}
body.precision.precision .hero .lead,body.precision.precision .hero p,body.precision.precision .sh p{text-wrap:pretty;max-width:58ch}
.pg-filters{width:fit-content;max-width:100%;margin:0 auto 32px;padding:12px 18px;align-items:center;justify-content:center;gap:12px 18px;border-radius:999px}
.pg-filters label{flex-direction:row;align-items:center;gap:10px;min-width:0}
.pg-filters select{border-radius:999px;padding:9px 36px 9px 16px;border-color:var(--pg-line);background-color:rgba(255,255,255,.92)}
.pg-filters p{margin:0;white-space:nowrap}
body.precision.precision .goal-filter{justify-content:center;width:fit-content;max-width:100%;margin:16px auto 28px}
body.precision.precision .sh{text-align:center;margin-left:auto;margin-right:auto}
body.precision.precision .sh .kicker{justify-content:center}
body.precision.precision .sh p{margin-left:auto;margin-right:auto}
body.precision.precision .pg-secondary{text-align:center}
@media(max-width:960px){
 body.precision.precision .sh,body.precision.precision .sh .kicker{text-align:left;justify-content:flex-start}
 body.precision.precision .sh p{margin-left:0}
 body.precision.precision .goal-filter{margin-left:0}
}
@media(max-width:520px){
 .pg-filters{width:auto;border-radius:var(--pg-r);padding:16px;gap:12px}
 .pg-filters label{flex-direction:column;align-items:stretch;width:100%}
 .pg-filters p{white-space:normal}
 body.precision.precision header .wrap{gap:6px}
 body.precision.precision header .navbtns .btn{padding:7px 9px;font-size:.78rem}
 body.precision.precision header .sn-toggle{padding:0 9px!important}
}
@media(max-width:520px){body.precision.precision .hero .acts .btn{flex:1 1 100%}}
@media(max-width:360px){body.precision.precision header .logo b,body.precision.precision header .logo .t{display:none}body.precision.precision header .sn{gap:6px}}

/* ======================================================================================
   Mockup pass (owner image, 24 Oct 2026 "ออกแบบให้เป็นแบบนี้"): lavender glass field,
   one-row header with the exam rail inside, framed hero photo with floating badge,
   chevron CTAs, full-width segmented goal filter, airy exam cards.
   ====================================================================================== */
body.precision.precision{
  background:
    radial-gradient(70vmax 46vmax at 88% 6%,rgba(118,146,240,.30),transparent 62%),
    radial-gradient(56vmax 40vmax at 6% 38%,rgba(176,160,246,.28),transparent 62%),
    radial-gradient(52vmax 34vmax at 60% 88%,rgba(140,176,250,.26),transparent 60%),
    radial-gradient(40vmax 26vmax at 22% 96%,rgba(244,170,130,.16),transparent 60%),
    radial-gradient(46vmax 18vmax at 50% 30%,rgba(255,255,255,.55),transparent 70%),
    linear-gradient(180deg,#F3F5FD 0,#E8EDFA 100%);
  background-attachment:fixed}
/* header: logo · rail · exam menu · search · login */
body.precision.precision header .wrap{gap:14px;max-width:1248px}
body.precision.precision header .pg-discovery{order:0;flex:1 1 auto;min-width:0;width:auto;max-width:none;margin:0;border-radius:999px;
  background:rgba(255,255,255,.5);border:1px solid var(--pg-edge);box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}
body.precision.precision header .pg-discovery-inner{padding:4px 6px;gap:0;max-width:none}
body.precision.precision header .pg-discovery-label{display:none}
body.precision.precision header .pg-rail{gap:0;justify-content:space-around}
body.precision.precision header .pg-rail a{flex:1 1 0;min-height:46px;padding:2px 10px;border-radius:999px;position:relative;line-height:1.35}
body.precision.precision header .pg-rail a b{font-size:.84rem}
body.precision.precision header .pg-rail small{font-size:.66rem}
body.precision.precision header .pg-rail a+a::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:1px;background:rgba(20,43,95,.14)}
body.precision.precision header .pg-rail a:hover,body.precision.precision header .pg-rail a[aria-current]{background:#fff;box-shadow:0 2px 10px rgba(20,43,95,.12)}
body.precision.precision header .pg-rail a[aria-current]+a::before,body.precision.precision header .pg-rail a:hover+a::before{opacity:0}
body.precision.precision header .sn{margin-left:auto;gap:10px}
body.precision.precision header .sn-top{background:rgba(255,255,255,.55);padding:0 18px}
body.precision.precision header .pg-search-open{display:inline-flex;align-items:center;gap:8px;padding:0 18px;min-height:44px;background:rgba(255,255,255,.55)}
body.precision.precision header .pg-search-open::before{content:"";width:17px;height:17px;flex:none;background:currentColor;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.8-3.8'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.8-3.8'/%3E%3C/svg%3E") center/contain no-repeat}
body.precision.precision header .navbtns .btn{background:#142B5F;color:#fff;border-color:#142B5F;border-radius:999px;padding:0 22px;min-height:44px;box-shadow:0 8px 18px rgba(20,43,95,.2)}
body.precision.precision header .navbtns .btn:hover{background:#1F56B5;border-color:#1F56B5}
@media(max-width:1200px){body.precision.precision header .pg-rail a{padding:2px 6px}body.precision.precision header .sn-top,body.precision.precision header .pg-search-open{padding:0 12px}}
/* hero */
body.precision.precision .hero-img{position:relative;max-width:500px;margin-right:18px}
body.precision.precision .hero-img img{max-height:470px;width:100%;object-fit:cover;border-radius:44px;border:6px solid rgba(255,255,255,.55);box-shadow:0 26px 60px rgba(20,43,95,.18)}
body.precision.precision .hero-badge{position:absolute;right:-26px;top:36%;display:flex;align-items:center;gap:12px;max-width:200px;padding:14px 18px;border-radius:22px;
  background:rgba(255,255,255,.8);border:1px solid var(--pg-edge);box-shadow:var(--pg-shadow);color:#142B5F;font:700 1rem/1.35 var(--ep-disp)}
body.precision.precision .hero-badge i{flex:none;width:30px;height:30px;background:#F26B21;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Ccircle cx='12' cy='12' r='4.5'/%3E%3Cpath d='M12 12 21 3M17 3h4v4'/%3E%3C/svg%3E") center/contain no-repeat;
  mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='9'/%3E%3Ccircle cx='12' cy='12' r='4.5'/%3E%3Cpath d='M12 12 21 3M17 3h4v4'/%3E%3C/svg%3E") center/contain no-repeat}
body.precision.precision .hero .acts{gap:12px 14px}
body.precision.precision .hero .acts .btn,body.precision.precision .hero .acts .pg-search-open{border-radius:999px;min-height:50px;padding:0 26px;font-weight:700;font-size:1.05rem}
body.precision.precision .hero .acts .btn:first-child{box-shadow:0 10px 22px rgba(20,43,95,.22)}
body.precision.precision .hero .acts .pg-search-open{background:rgba(255,255,255,.7)}
body.precision.precision .hero .acts .btn::after,body.precision.precision .hero .acts .pg-search-open::after,body.precision.precision .hero .alt a::after{content:"›";margin-left:8px;font-size:1.25em;line-height:1}
body.precision.precision .hero .alt a{text-decoration:underline;text-underline-offset:4px}
/* goal filter: full-width segmented */
body.precision.precision .goal-filter{display:flex;flex-wrap:nowrap;width:100%;max-width:none;margin:22px 0 28px;padding:5px;gap:0;border-radius:999px;background:rgba(255,255,255,.55);border:1px solid var(--pg-edge);box-shadow:inset 0 1px 0 rgba(255,255,255,.9)}
body.precision.precision .gf{flex:1 1 0;justify-content:center;position:relative;min-height:44px;padding:0 14px;border:0;border-radius:999px;background:transparent;color:#182230;box-shadow:none}
body.precision.precision .gf+.gf::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:1px;background:rgba(20,43,95,.14)}
body.precision.precision .gf[aria-pressed="true"]{background:#142B5F;color:#fff;box-shadow:0 8px 18px rgba(20,43,95,.2)}
body.precision.precision .gf[aria-pressed="true"]+.gf::before{opacity:0}
body.precision.precision .gf:hover:not([aria-pressed="true"]){background:rgba(255,255,255,.85)}
/* exam cards */
body.precision.precision .path{border-top:0;border-radius:26px;padding:24px 22px 22px;min-height:320px}
body.precision.precision .path-art{opacity:.55;-webkit-mask-image:linear-gradient(205deg,#000 0,rgba(0,0,0,.6) 35%,transparent 62%);mask-image:linear-gradient(205deg,#000 0,rgba(0,0,0,.6) 35%,transparent 62%)}
body.precision.precision .pill{border-radius:999px;padding:5px 12px}
body.precision.precision .pill.open{background:rgba(22,163,74,.12);color:#15803D}
body.precision.precision .path h3{font-size:1.7rem;margin-bottom:2px}
body.precision.precision .path .chips li{background:rgba(255,255,255,.72);border:1px solid rgba(20,43,95,.12)}
body.precision.precision .path-acts .btn{border-radius:999px;min-height:46px}
body.precision.precision .path-acts .btn.accent{box-shadow:0 8px 18px rgba(20,43,95,.16)}
body.precision.precision .path-acts .btn.accent::after{content:"›";margin-left:8px;font-size:1.25em;line-height:1}
body.precision.precision .path-acts .btn.quiet{background:rgba(255,255,255,.75);border:1.5px solid #142B5F;color:#142B5F}
@media(max-width:960px){
 body.precision.precision header .wrap{flex-wrap:wrap}
 body.precision.precision header .pg-discovery{order:10;flex:1 1 100%;width:100%;margin:4px 0 0;border-radius:14px;background:rgba(255,255,255,.55)}
 body.precision.precision header .pg-discovery-inner{padding:6px 12px}
 body.precision.precision :is(h2,h3,[id]){scroll-margin-top:150px}
 body.precision.precision header .pg-search-open{padding:0 12px}
}
@media(max-width:640px){
 body.precision.precision .goal-filter{flex-wrap:wrap;border-radius:22px;gap:4px}
 body.precision.precision .gf{flex:1 1 auto}
 body.precision.precision .gf+.gf::before{display:none}
}
@media(prefers-reduced-transparency:reduce){
 body.precision.precision{background:#F2F5FA}
 body.precision.precision header .pg-discovery,body.precision.precision .goal-filter,body.precision.precision .hero-badge,body.precision.precision header .pg-search-open,body.precision.precision header .sn-top,body.precision.precision .hero .acts .pg-search-open{background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}
}
@media(forced-colors:active){body.precision.precision .hero-badge,body.precision.precision header .pg-discovery{background:Canvas;color:CanvasText;border:1px solid CanvasText}}
@media(max-width:520px){
 body.precision.precision header .navbtns .btn{padding:0 14px;font-size:.82rem;min-height:40px}
 body.precision.precision header .pg-search-open{width:44px;padding:0;justify-content:center;gap:0;font-size:0}
 body.precision.precision header .pg-search-open::before{width:19px;height:19px}
 body.precision.precision header .sn{gap:6px}
 body.precision.precision header .pg-discovery{margin-top:2px}
}
/* lower sections (owner idea images, 24 Oct 2026) */
body.precision.precision .faq{max-width:1000px}
body.precision.precision .faq details{margin:0 0 10px;border-radius:18px;background:rgba(255,255,255,.72);border:1px solid var(--pg-edge);box-shadow:var(--pg-shadow)}
body.precision.precision .faq summary{min-height:60px;padding:14px 22px;border-radius:18px}
body.precision.precision .faq summary::after{content:"";flex:none;width:30px;height:30px;border-radius:50%;color:#B54708;background-color:rgba(242,107,33,.14);background-image:linear-gradient(currentColor,currentColor),linear-gradient(currentColor,currentColor);background-size:12px 2.5px,2.5px 12px;background-position:center;background-repeat:no-repeat}
body.precision.precision .faq details[open] summary::after{background-size:12px 2.5px,0 0}
body.precision.precision .fam{padding:22px 20px;border-radius:22px}
body.precision.precision .fam-ic{width:46px;height:46px;border-radius:14px}
body.precision.precision .fam-en{letter-spacing:.14em;font-size:.72rem;color:#46566F}
body.precision.precision .acct{padding:40px;border-radius:28px;background:rgba(255,255,255,.68);border:1px solid var(--pg-edge);box-shadow:var(--pg-shadow)}
body.precision.precision .acct li{position:relative;padding:16px 48px 16px 18px;border-radius:18px;background:rgba(255,255,255,.82);border:1px solid var(--pg-edge)}
body.precision.precision .acct li::after{content:"›";position:absolute;right:18px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:#142B5F}
body.precision.precision .acct .btn{border-radius:999px;background:linear-gradient(135deg,#F26B21,#E0560F);color:#fff;border-color:transparent;padding:0 28px;min-height:52px;font-size:1.05rem;box-shadow:0 10px 22px rgba(242,107,33,.3)}
body.precision.precision .acct .btn::after{content:"→";margin-left:10px}
body.precision.precision .rvGrid figure{padding:22px;border-radius:22px;background:rgba(255,255,255,.72);border:1px solid var(--pg-edge);box-shadow:var(--pg-shadow)}
body.precision.precision .method{border-radius:24px}
body.precision.precision .method-note{border-radius:20px}
body.precision.precision .method-note .btn{border-radius:999px;background:linear-gradient(135deg,#F26B21,#E0560F);color:#fff;border-color:transparent}
@media(max-width:860px){body.precision.precision .acct{padding:24px;border-radius:22px}}
@media(prefers-reduced-transparency:reduce){body.precision.precision :is(.faq details,.acct,.acct li,.rvGrid figure){background:#fff}}
/* Fix pass (owner, 24 Oct 2026 evening): aligned tool cards, centred icons, menu panel inside viewport, exam pages on the same system */
body.precision.precision .fam{display:flex;flex-direction:column;align-items:flex-start}
body.precision.precision .fam p{margin:0 0 6px}
body.precision.precision .fam>a{margin-top:auto;padding-top:10px}
body.precision.precision .fam-ic{display:grid;place-items:center;width:46px;height:46px;margin-bottom:14px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--ic1,#F26B21),var(--ic2,#E0560F));box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 6px 14px rgba(20,43,95,.16)}
body.precision.precision .fam-ic svg{display:block;width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
body.precision.precision header .sn-panel{left:auto;right:0;width:min(760px,calc(100vw - 32px));max-width:calc(100vw - 32px);background:rgba(255,255,255,.95)}
body.precision.precision header .sn-cols{grid-template-columns:repeat(var(--cols,2),minmax(0,1fr))}
.pg-search{max-width:calc(100vw - 24px)}
body.precision.precision:not(.v2) main>.hero{max-width:1236px;margin:12px auto 0;border-radius:28px;overflow:hidden;background:rgba(255,255,255,.5);border:1px solid var(--pg-edge);box-shadow:var(--pg-shadow)}
body.precision.precision .btn{border-radius:999px}
body.precision.precision :is(.symptom,.sym,.step,.pk a,.pkg,.plan,.ladder li){border-radius:22px}
@media(max-width:960px){body.precision.precision:not(.v2) main>.hero{margin:8px 8px 0;max-width:none;border-radius:22px}body.precision.precision header .sn-panel{width:auto;max-width:none}}
body.precision.precision:not(.v2) .hero .acts .btn::after{content:none}
body.precision.precision:not(.v2) .hero h1{text-wrap:pretty;overflow-wrap:normal}
@media(max-width:520px){body.precision.precision:not(.v2) .hero h1{font-size:1.8rem}}
/* reviews: masked reviewer handle (owner, 24 Oct 2026 "คุณ Pa•••") */
body.precision.precision .rvGrid figcaption{display:grid;grid-template-columns:40px 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center;margin-top:16px;font-size:.84rem;color:#46566F}
body.precision.precision .rv-ava{grid-row:1/3;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#E8F0FF;color:#1F56B5;font:700 1.05rem var(--ep-disp)}
body.precision.precision .rvGrid figcaption b{color:#142B5F;font-size:.95rem}
body.precision.precision .rvGrid figcaption small{font-size:.8rem}
/* reviews: equal-height cards, caption pinned to the bottom so names line up across a row (owner, 24 Oct 2026) */
body.precision.precision .rvGrid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}
body.precision.precision .rvGrid figure{display:flex;flex-direction:column;min-height:100%}
body.precision.precision .rvGrid blockquote{flex:1 1 auto}
body.precision.precision .rvGrid figcaption{margin-top:auto;padding-top:18px}
body.precision.precision .rvGrid figcaption small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media(max-width:960px){body.precision.precision .rvGrid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){body.precision.precision .rvGrid{grid-template-columns:1fr}}