/* The Investmin · shared styles for library and article pages (same system as the homepage) */
:root{
  --mint:#7CFFA8;--mint-hover:#A3FFC2;--mint-ink:#0B6B35;
  --ink:#1D1D1F;--ink-2:#6E6E73;--ink-3:#A1A1A6;--line:#D2D2D7;--bg-2:#F5F5F7;
  --line-green:#06C755;
  --font:"Noto Sans Thai","SF Pro Display","SF Pro Text",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:#fff;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%}
[hidden]{display:none!important}
::selection{background:var(--mint);color:var(--ink)}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--mint);outline-offset:2px;border-radius:6px}
h1,h2,h3,p,ul,ol{margin:0}
.nw{white-space:nowrap}
.wrap{max-width:1120px;margin-inline:auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;line-height:1}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint)}
.light .badge::before{background:var(--mint-ink)}
.h2{font-size:clamp(28px,4vw,44px);font-weight:700;line-height:1.3;letter-spacing:-.01em;text-wrap:balance}
.hl{color:var(--mint)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:980px;font-weight:600;line-height:1.2;transition:background-color .2s,transform .2s}
.btn:active{transform:scale(.98)}
.btn--primary{background:var(--mint);color:var(--ink);padding:14px 28px;font-size:17px}
.btn--primary:hover{background:var(--mint-hover)}
.btn--line{background:var(--line-green);color:#fff;padding:14px 26px;font-size:17px}
.link{display:inline-flex;align-items:center;gap:2px;font-size:16px;font-weight:600;color:var(--mint-ink)}
.link::after{content:"›";font-size:1.25em;line-height:1;transition:transform .2s;margin-left:4px}
.link:hover::after{transform:translateX(3px)}
.dark .link{color:var(--mint)}

/* header */
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:100;background:#fff}
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:90;background:rgba(255,255,255,.8);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}
.hdr{display:flex;align-items:center;gap:24px;height:56px;position:relative}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px}
.logo img{width:34px;height:34px;border-radius:50%}
.menu{display:flex;gap:28px;margin-left:auto}
.menu a{font-size:15px;font-weight:500;opacity:.85}
.menu a:hover,.menu a.on{opacity:1}
.menu a.on{text-decoration:underline;text-decoration-color:var(--mint);text-decoration-thickness:2px;text-underline-offset:8px}
.hdr .btn{background:var(--mint);color:var(--ink);padding:8px 18px;font-size:15px}
.burger{display:none;width:44px;height:44px;border:0;background:none;padding:10px;cursor:pointer;color:var(--ink)}
.drawer{display:none}
@media (max-width:900px){
  .menu,.hdr .btn{display:none}
  .hdr{justify-content:space-between}
  .burger{display:block;margin-left:-10px}
  .logo span{display:none}
  .hdr::after{content:"";width:44px}
  .logo{position:absolute;left:50%;transform:translateX(-50%)}
  .drawer{position:fixed;inset:calc(56px + env(safe-area-inset-top,0px)) 0 0 0;background:#fff;z-index:80;padding-left:max(28px,env(safe-area-inset-left,0px));padding-right:max(28px,env(safe-area-inset-right,0px));padding-block:12px 40px;overflow-y:auto}
  .drawer.open{display:block}
  .drawer a{display:block;font-size:21px;font-weight:600;padding-block:12px}
  .drawer .btn{display:flex;margin-top:16px;min-height:52px;font-size:17px;background:var(--mint);color:var(--ink)}
}

/* page hero */
.page-hero{background:#000;color:#F5F5F7;padding-block:64px 56px;text-align:center}
.page-hero .wrap{display:grid;justify-items:center;gap:16px}
.page-hero h1{font-size:clamp(40px,6vw,64px);font-weight:700;line-height:1.3;letter-spacing:-.015em;color:#fff}
.page-hero p{font-size:clamp(17px,1.8vw,19px);color:var(--ink-3);max-width:40ch;text-wrap:balance}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:10px}
.chip{border:1px solid #3A3A3C;color:#F5F5F7;background:none;border-radius:980px;padding:9px 18px;font:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,border-color .2s}
.chip:hover{border-color:var(--mint)}
.chip[aria-pressed="true"]{background:var(--mint);border-color:var(--mint);color:var(--ink)}

/* sections + cards */
.sec{padding-block:80px}
.alt{background:var(--bg-2)}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:32px}
.head-row > div{display:grid;gap:12px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,.07);display:flex;flex-direction:column;transition:transform .3s}
.card:hover{transform:translateY(-4px)}
.card[hidden]{display:none!important}
.card img{display:block;width:100%;height:auto;aspect-ratio:40/21;object-fit:cover;background:#000}
.card__b{padding:18px 20px 22px;display:grid;gap:8px;flex:1;align-content:start}
.card__tag{font-size:13px;color:var(--ink-2)}
.card h3{font-size:19px;font-weight:700;line-height:1.45}
.card p{font-size:15px;color:var(--ink-2);line-height:1.6}
.card__meta{margin-top:auto;padding-top:6px;font-size:14px;font-weight:600;color:var(--mint-ink)}
.step{display:grid;grid-template-columns:120px 1fr;gap:24px;padding-block:36px;border-top:1px solid var(--line)}
.step:first-of-type{border-top:0;padding-top:0}
.step__n{font-size:15px;font-weight:600;color:var(--ink-2)}
.step__n b{display:block;font-size:56px;font-weight:800;line-height:1;color:var(--ink);letter-spacing:-.03em}
.step h3.step__t{font-size:24px;font-weight:700;margin-bottom:18px}
.grid--step{grid-template-columns:repeat(3,1fr);gap:16px}
.grid--step .card h3{font-size:16px}
.ext{font-size:13px;font-weight:600;color:var(--mint-ink)}
@media (max-width:900px){.grid,.grid--step{grid-template-columns:1fr 1fr}.step{grid-template-columns:1fr;gap:12px}.step__n b{display:inline;font-size:40px;margin-right:8px}.sec{padding-block:64px}}
@media (max-width:560px){.grid{grid-template-columns:1fr}.grid--step{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:82%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:none}.grid--step::-webkit-scrollbar{display:none}.grid--step .card{scroll-snap-align:start}}

/* article */
.art-head{background:#000;color:#F5F5F7;padding-block:48px 0}
.crumbs{font-size:14px;color:var(--ink-3);display:flex;gap:8px;flex-wrap:wrap}
.crumbs a:hover{color:#fff}
.art-head h1{font-size:clamp(32px,5vw,52px);font-weight:700;line-height:1.35;color:#fff;margin-top:16px;max-width:22ch;text-wrap:balance}
.art-meta{font-size:15px;color:var(--ink-3);margin-top:14px}
.art-cover{margin-top:36px;border-radius:24px 24px 0 0;overflow:hidden;display:block}
.art-cover img{display:block;width:100%;height:auto}
.prose{max-width:700px;margin-inline:auto;padding-block:48px 24px;font-size:18px;line-height:1.85}
.prose > * + *{margin-top:18px}
.prose h2{font-size:26px;font-weight:700;line-height:1.4;margin-top:40px}
.prose h3{font-size:20px;font-weight:700;margin-top:28px}
.prose ul,.prose ol{padding-left:1.3em;display:grid;gap:8px}
.prose strong{font-weight:700}
.formula{background:#000;color:var(--mint);font-weight:700;font-size:19px;border-radius:16px;padding:18px 22px;text-align:center}
.note{background:var(--bg-2);border-radius:16px;padding:16px 20px;font-size:16px;color:var(--ink-2)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px}
.table-wrap table{width:100%;border-collapse:collapse;font-size:16px;min-width:420px}
.table-wrap th,.table-wrap td{padding:12px 16px;text-align:left;border-top:1px solid var(--line)}
.table-wrap thead th{border-top:0;background:var(--bg-2);font-weight:700}
.table-wrap td:last-child,.table-wrap th:last-child{font-variant-numeric:tabular-nums}
.source{max-width:700px;margin:8px auto 0;padding:24px;border-radius:24px;background:#000;color:#F5F5F7;display:grid;grid-template-columns:96px 1fr;gap:20px;align-items:center}
.source img{border-radius:10px;width:96px;height:auto}
.source p{font-size:15px;color:var(--ink-3)}
.source strong{display:block;font-size:19px;color:#fff;margin-bottom:4px}
.source .link{margin-top:8px}
.disc{max-width:700px;margin:24px auto 0;font-size:13px;color:var(--ink-2)}
@media (max-width:560px){.prose{font-size:17px}.source{grid-template-columns:1fr}.art-cover{border-radius:16px 16px 0 0}}

/* cta + footer */
.cta{text-align:center}
.cta .wrap{max-width:720px;display:grid;justify-items:center;gap:16px}
.cta p{color:var(--ink-2);font-size:19px}
.actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:16px 28px;margin-top:12px}
.foot{background:var(--bg-2);border-top:1px solid var(--line);color:var(--ink-2);font-size:13px;line-height:1.6;text-align:center;padding-block:36px 28px}
.foot nav{display:flex;flex-wrap:wrap;justify-content:center;gap:6px 22px;margin-bottom:18px}
.foot nav a{color:var(--ink);opacity:.8}
.foot nav a:hover{opacity:1}
.foot .bottom{border-top:1px solid var(--line);padding-top:18px;display:grid;gap:6px;justify-items:center}
.foot .bottom p{max-width:70ch}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* Investmin+ page */
.subnav{position:sticky;top:calc(env(safe-area-inset-top,0px) + 56px);z-index:70;background:rgba(255,255,255,.85);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.08)}
.subnav .wrap{display:flex;align-items:center;gap:24px;height:52px}
.subnav strong{font-size:19px;font-weight:700;margin-right:auto}
.subnav strong span{color:var(--mint-ink)}
.subnav a{font-size:13px;color:var(--ink);opacity:.85}
.subnav .btn{background:var(--ink);color:#fff;padding:6px 14px;font-size:13px;opacity:1}
@media (max-width:560px){.subnav a:not(.btn){display:none}}
.plus-hero{text-align:center;padding-block:72px 0;overflow:hidden}
.plus-hero .wrap{display:grid;justify-items:center;gap:18px}
.plus-hero h1{font-size:clamp(44px,7vw,80px);font-weight:700;line-height:1.25;letter-spacing:-.02em}
.plus-hero h1 span{display:block;color:var(--ink-2)}
.plus-hero .lead{font-size:clamp(17px,2vw,21px);color:var(--ink-2);text-wrap:balance}
.btns{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.btn--black{background:var(--ink);color:#fff;padding:13px 26px;font-size:17px;border:0;cursor:pointer;font-family:inherit}
.btn--black:hover{background:#000}
.btn--black svg{width:20px;height:20px}
.textbtn{background:none;border:0;font:inherit;cursor:pointer;padding:0}
.devices{position:relative;max-width:980px;width:100%;margin:48px auto 0;aspect-ratio:980/560}
.laptop{position:absolute;left:12%;top:0;width:76%}
.laptop .scr{background:#1D1D1F;border-radius:18px 18px 0 0;padding:1.4% 1.4% 2%;box-shadow:0 30px 70px rgba(0,0,0,.18)}
.laptop .scr img{display:block;width:100%;height:auto;aspect-ratio:1476/812;object-fit:cover;border-radius:6px}
.laptop .base{height:clamp(8px,1.6vw,16px);background:linear-gradient(#E3E3E8,#A1A1A6);border-radius:0 0 18px 18px;margin:0 -7%;position:relative}
.laptop .base::before{content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);width:16%;height:40%;background:#C7C7CC;border-radius:0 0 8px 8px}
.tablet{position:absolute;left:0;bottom:0;width:30%;aspect-ratio:3/4;background:#1D1D1F;border-radius:clamp(14px,2.6vw,28px);padding:1.1%;box-shadow:0 30px 70px rgba(0,0,0,.28)}
.tablet img{display:block;width:100%;height:100%;object-fit:cover;object-position:top;border-radius:clamp(9px,1.8vw,20px)}
.phone{position:absolute;right:2%;bottom:0;width:17%;background:#1D1D1F;border-radius:clamp(14px,3vw,32px);padding:.8%;box-shadow:0 30px 70px rgba(0,0,0,.3)}
.phone img{display:block;width:100%;height:auto;border-radius:clamp(10px,2.4vw,26px)}
.fmt{background:#000;color:#F5F5F7}
.fmt .head-c{text-align:center;display:grid;justify-items:center;gap:16px;margin-bottom:48px}
.fmt .h2{color:#fff}
.tiles6{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ftile{background:#1D1D1F;border-radius:28px;padding:30px 28px;display:grid;align-content:start;gap:10px}
.ftile .ic{width:44px;height:44px;border-radius:12px;background:rgba(124,255,168,.14);color:var(--mint);display:grid;place-items:center}
.ftile .ic svg{width:24px;height:24px}
.ftile .num{font-size:48px;font-weight:800;line-height:1;letter-spacing:-.02em;color:var(--mint);margin-top:8px}
.ftile .num small{font-size:17px;font-weight:600;color:var(--ink-3);margin-left:6px;letter-spacing:0}
.ftile h3{font-size:21px;font-weight:700;color:#fff}
.ftile p{color:var(--ink-3);font-size:15px}
.ftile ul{list-style:none;padding:0;display:grid;gap:6px;margin-top:6px}
.ftile li{position:relative;padding-left:18px;font-size:15px;color:#E5E5EA}
.ftile li::before{content:"";position:absolute;left:2px;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--mint)}
@media (max-width:900px){.tiles6{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.tiles6{grid-template-columns:1fr}}
.devs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.dev{background:#fff;border-radius:24px;padding:32px 28px;display:grid;justify-items:center;text-align:center;gap:10px;box-shadow:0 4px 24px rgba(0,0,0,.06)}
.dev .di{width:56px;height:56px;border-radius:16px;background:var(--ink);color:#fff;display:grid;place-items:center}
.dev .di svg{width:28px;height:28px}
.dev h3{font-size:21px;font-weight:700}
.dev p{color:var(--ink-2);font-size:15px}
.dev .btn{margin-top:8px}
@media (max-width:760px){.devs{grid-template-columns:1fr}}
.tabs{display:flex;justify-content:center;gap:6px;background:var(--bg-2);border-radius:980px;padding:5px;width:max-content;max-width:100%;margin:0 auto 36px}
.tab{border:0;background:none;font:inherit;font-size:15px;font-weight:600;padding:9px 20px;border-radius:980px;cursor:pointer;color:var(--ink-2)}
.tab[aria-selected="true"]{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.steps{list-style:none;padding:0;max-width:760px;margin:0 auto;display:grid;gap:12px;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:48px 1fr;gap:16px;align-items:start;background:var(--bg-2);border-radius:20px;padding:20px 22px}
.steps li::before{content:counter(s);width:40px;height:40px;border-radius:50%;background:var(--mint);color:var(--ink);font-weight:800;font-size:18px;display:grid;place-items:center}
.steps strong{display:block;font-size:18px;font-weight:700}
.steps span{display:block;color:var(--ink-2);font-size:15px}
.helpgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.help{border-radius:28px;padding:36px;display:grid;gap:12px;align-content:start}
.help--dark{background:#000;color:#F5F5F7}
.help--dark h3{color:#fff}
.help--mint{background:var(--mint)}
.help h3{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3}
.help p{font-size:17px}
.help--dark p{color:var(--ink-3)}
.help .btn{justify-self:start;margin-top:8px}
@media (max-width:760px){.helpgrid{grid-template-columns:1fr}}
/* intro dialog */
dialog.intro{border:0;padding:0;border-radius:28px;width:min(640px,calc(100% - 32px));max-height:calc(100% - 48px);background:#fff;color:var(--ink);box-shadow:0 40px 80px rgba(0,0,0,.35)}
dialog.intro::backdrop{background:rgba(0,0,0,.55);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
dialog.intro[open]{animation:pop .28s cubic-bezier(.2,.8,.2,1)}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.intro__top{background:radial-gradient(90% 140% at 90% 0%,#0E4A2B,#000 70%);color:#fff;padding:32px 32px 28px;position:relative}
.intro__top .logo-plus{font-size:28px;font-weight:800}
.intro__top .logo-plus i{font-style:normal;color:var(--mint)}
.intro__top h2{font-size:24px;font-weight:700;line-height:1.35;margin-top:10px}
.intro__top p{color:var(--ink-3);margin-top:8px;font-size:15px}
.x{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:20px;line-height:1;cursor:pointer}
.intro__body{padding:24px 32px 8px}
.intro__body h3{font-size:15px;font-weight:700;color:var(--ink-2);margin-bottom:12px}
.ilist{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.ilist li{display:flex;gap:10px;align-items:center;background:var(--bg-2);border-radius:14px;padding:10px 12px;font-size:14px;font-weight:600;line-height:1.35}
.ilist li .ic{flex:none;width:34px;height:34px;border-radius:10px;background:#000;color:var(--mint);display:grid;place-items:center}
.ilist li .ic svg{width:18px;height:18px}
.ilist li small{display:block;font-weight:500;color:var(--ink-2);font-size:12px}
.isteps{list-style:none;padding:0;display:grid;gap:8px;margin-top:20px;counter-reset:i}
.isteps li{counter-increment:i;display:flex;gap:12px;align-items:center;font-size:15px}
.isteps li::before{content:counter(i);flex:none;width:28px;height:28px;border-radius:50%;background:var(--mint);font-weight:800;font-size:14px;display:grid;place-items:center}
.intro__foot{padding:20px 32px 28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.intro__foot p{font-size:13px;color:var(--ink-2);max-width:32ch}
@media (max-width:560px){.ilist{grid-template-columns:1fr}.intro__top,.intro__body,.intro__foot{padding-left:22px;padding-right:22px}}