/* ระบบดอทคอม — หน้าเว็บสาธารณะ (หน้าแรก / ประเภทธุรกิจ / เครื่องมือ / นโยบาย)
   สไตล์ Technical Minimalist: พื้นกระดาษ + ลาย mosaic เส้นบาง · เส้นแบ่ง 1px · ไม่มีเงา ไม่มี gradient · มุม 0–2px
   หัวข้อ Space Grotesk (ตัวไทยตกไป Anuphan) · ป้าย/ตัวเลข JetBrains Mono · สีหลัก = น้ำเงินเข้มของแบรนด์
   ตั้งใจเป็นธีมสว่างธีมเดียว (ทั้งเว็บเป็นชุดกระดาษ) — กำหนดสีพื้นและสีตัวอักษรเองทุกจุด */
:root{
  --ground:#F7F7F5;           /* Paper */
  --paper:#FFFFFF;            /* กล่อง/ฟอร์ม */
  --ink:#0D2554;              /* น้ำเงินเข้มของแบรนด์ (แทน Forest) */
  --text:#22262E;
  --muted:#5E605C;
  --grid:#3A3A38;
  --line:rgba(58,58,56,.2);   /* hairline */
  --line-strong:rgba(58,58,56,.45);
  --brand:#0D2554;
  --brand-2:#0A5BE0;          /* ฟ้ารอยัลจากโลโก้ — ลิงก์/ไฮไลต์ */
  --sky:#00A8E8;
  --coral:#FF8C69; --mint:#9EFFBF; --gold:#F4D35E;
  --brand-soft:#E8EEFA;
  --stamp:#D24A22; --ok:#17724A; --warn:#9A6A00;
  --on-brand:#FFFFFF;
  --contact-bg:#0D2554; --contact-btn:#0D2554;
  --logo-c:block; --logo-l:none;
  --f-display:"Space Grotesk","Anuphan","IBM Plex Sans Thai",system-ui,sans-serif;
  --f-body:"IBM Plex Sans Thai","Anuphan",system-ui,sans-serif;
  --f-mono:"JetBrains Mono","IBM Plex Sans Thai",ui-monospace,Menlo,monospace;
  --wrap:1200px;
  --ease:cubic-bezier(.2,.7,.2,1);
  color-scheme:light;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
/* พื้นเนื้อหาเรียบ (กระดาษ) — ลายตารางใต้ตัวหนังสือทำให้อ่านยาก/ลายตา (ตรวจด้วย ui-ux-pro-max: contrast-readability)
   ลาย mosaic จึงอยู่เฉพาะส่วนหัวหน้า และไล่จางออกจากฝั่งที่มีข้อความ — ดู .hero::before ด้านล่าง */
body{
  overflow-x:clip;margin:0;color:var(--text);font-family:var(--f-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
  background-color:var(--ground);
}
:root{--mosaic:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cg fill='none' stroke='%233A3A38' stroke-opacity='.22' stroke-width='.5'%3E%3Cpath d='M0 .25H240M.25 0V240M96 0V240M96 72H240M168 72V240M0 150H96M96 192H168M48 150V240M168 132H240'/%3E%3C/g%3E%3C/svg%3E");}
/* ลาย mosaic: แผงสี่เหลี่ยมหลายขนาดต่อกัน เส้น 0.5px — แผ่นละ 240px ต่อกันไร้รอยต่อ
   จอกว้าง: เข้มฝั่งขวา (ภาพ) จางไปฝั่งซ้าย (ข้อความ) · จอแคบ: เข้มด้านล่าง จางขึ้นด้านบน */
.hero,.sol-hero,.page-head{position:relative;isolation:isolate}
.hero::before,.sol-hero::before,.page-head::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background-image:var(--mosaic);
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,transparent 38%,#000 78%);mask-image:linear-gradient(90deg,transparent 0%,transparent 38%,#000 78%)}
.page-head::before{-webkit-mask-image:linear-gradient(90deg,transparent 0%,transparent 55%,#000 95%);mask-image:linear-gradient(90deg,transparent 0%,transparent 55%,#000 95%)}
@media (max-width:960px){
  .hero::before,.sol-hero::before{-webkit-mask-image:linear-gradient(180deg,transparent 0%,transparent 50%,#000 85%);mask-image:linear-gradient(180deg,transparent 0%,transparent 50%,#000 85%)}
  .page-head::before{display:none}
}
img{max-width:100%;height:auto}
[hidden]{display:none!important}
a{color:var(--brand-2)}
h1,h2,h3,h4{font-family:var(--f-display);color:var(--ink);line-height:1.2;letter-spacing:-.02em;text-wrap:balance;margin:0}
p{margin:0}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums;letter-spacing:0}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}

/* ป้ายเทคนิค (mono) — ใช้กับ eyebrow, ป้ายหมวด, metadata */
.eyebrow,.mono-label{font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
/* เลขลำดับ section อัตโนมัติ: 01 / 02 / ... ตามลำดับที่อ่าน */
body{counter-reset:sec}
/* ไม่ใส่เลขลำดับให้ section — section ไม่ได้เป็นขั้นตอนต่อกัน เลขจึงเป็นแค่ของตกแต่ง (เมนูยังมีเลข) */

/* ---------- ปุ่ม ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--f-mono);font-weight:500;font-size:13px;letter-spacing:.06em;line-height:1.3;text-decoration:none;border-radius:2px;padding:11px 18px;border:1px solid transparent;cursor:pointer;white-space:nowrap;background:none;color:var(--ink);transition:background-color .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease)}
.btn-primary{background:var(--brand);color:var(--on-brand);border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-2);border-color:var(--brand-2)}
.btn-ghost{border-color:var(--line-strong);color:var(--ink);background:transparent}
.btn-ghost:hover{border-color:var(--ink);background:var(--paper)}
.btn-lg{font-size:14px;padding:15px 24px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- header ---------- */
.site-top{position:sticky;top:0;z-index:30;background:var(--ground);border-bottom:1px solid var(--line)}
.site-top .wrap{display:flex;align-items:center;gap:28px;min-height:64px}
.logo{display:inline-flex}
.logo img{height:36px;width:auto}
.logo .c{display:var(--logo-c)} .logo .l{display:var(--logo-l)}
.nav-main{display:flex;align-items:center;gap:24px;margin-left:auto;counter-reset:nav}
/* นับเลขเฉพาะเมนูระดับบน — ลิงก์ใน dropdown ไม่ถูกนับ */
.nav-main>a,.nav-dd>a{display:inline-block;font-family:var(--f-mono);font-size:12px;line-height:1.7;letter-spacing:.06em;white-space:nowrap;text-decoration:none;color:var(--muted);counter-increment:nav;transition:transform .15s var(--ease),color .15s var(--ease)}
/* ลอยขึ้นเล็กน้อยตอนชี้ */
.nav-main>a:hover,.nav-dd>a:hover,.nav-dd:hover>a,.nav-dd:focus-within>a{transform:translateY(-2px)}
.nav-main>a::before,.nav-dd>a::before{content:counter(nav,decimal-leading-zero) ". ";color:var(--line-strong)}
.nav-main>a:hover,.nav-main>a[aria-current="page"],.nav-dd>a:hover,.nav-dd>a[aria-current="page"],.nav-dd:hover>a{color:var(--ink)}
.nav-main>a[aria-current="page"]::before,.nav-dd>a[aria-current="page"]::before{color:var(--brand-2)}
.nav-dd>a::after{content:" ▾";font-size:10px;color:var(--line-strong)}
/* dropdown: padding-top เป็นสะพานโปร่ง กันเมนูปิดตอนเลื่อนเมาส์จากลิงก์ลงมา */
/* div ต้องเป็น flex ไม่งั้น strut 16px ของ div ดันข้อความ 12px ให้ต่ำกว่าเมนูอื่น */
.nav-dd{position:relative;display:flex;align-items:center}
.nav-dd-menu{display:none;position:absolute;left:-16px;top:100%;padding-top:20px;z-index:40}
.nav-dd:hover .nav-dd-menu,.nav-dd:focus-within .nav-dd-menu{display:block;animation:dd-in .16s var(--ease)}
@keyframes dd-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.nav-dd-list{width:360px;background:var(--paper);border:1px solid var(--grid);display:flex;flex-direction:column}
.nav-dd-list a{display:flex;flex-direction:column;gap:2px;padding:12px 16px;text-decoration:none;border-bottom:1px solid var(--line);border-left:3px solid transparent;transition:background-color .15s var(--ease),border-left-color .15s var(--ease)}
.nav-dd-list a b,.nav-dd-list a span{transition:transform .15s var(--ease)}
.nav-dd-list a:hover b,.nav-dd-list a:hover span,.nav-dd-list a:focus-visible b,.nav-dd-list a:focus-visible span{transform:translateX(4px)}
.nav-dd-list a:last-child{border-bottom:0}
.nav-dd-list a b{font-family:var(--f-mono);font-size:12px;font-weight:500;letter-spacing:.02em;color:var(--ink)}
.nav-dd-list a span{font-size:12.5px;line-height:1.5;color:var(--muted)}
.nav-dd-list a:hover,.nav-dd-list a:focus-visible{background:var(--ground);border-left-color:var(--brand-2)}
.nav-dd-list a.first{border-left-color:var(--brand-2)}
.nav-dd-list a em.prod{align-self:flex-start;font-style:normal;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;color:var(--brand-2);border:1px solid var(--line-strong);padding:0 6px;margin-bottom:4px;transition:transform .15s var(--ease)}
.nav-dd-list a:hover em.prod,.nav-dd-list a:focus-visible em.prod{transform:translateX(4px)}
/* ชื่อผลิตภัณฑ์บน hero ของหน้า solutions */
.sol-hero .prod-tag{align-self:flex-start;display:inline-flex;gap:10px;align-items:baseline;font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--muted);border:1px solid var(--line-strong);background:var(--paper);padding:5px 10px}
.sol-hero .prod-tag b{color:var(--brand-2);font-weight:500}
.nav-dd-list a[aria-current="page"]{background:var(--ground);border-left-color:var(--ink)}
.site-top .actions{display:flex;gap:8px}
/* ปุ่มเข้าสู่ระบบ — เฉพาะของเว็บนี้ */
.btn-login{position:relative;display:inline-flex;align-items:stretch;height:40px;border:1px solid var(--ink);background:var(--paper);color:var(--ink);text-decoration:none;font-family:var(--f-mono);font-size:12.5px;letter-spacing:.06em;transition:background-color .15s var(--ease),color .15s var(--ease)}
.btn-login .ico{display:grid;place-items:center;width:40px;background:var(--ink);overflow:hidden}
.btn-login .ico svg{width:18px;height:18px;fill:none;stroke:#FFFFFF;stroke-width:1.6;stroke-linecap:square}
.btn-login .ico svg path:nth-child(n+2){transition:transform .2s var(--ease)}
.btn-login .txt{display:flex;align-items:center;padding:0 4px 0 14px}
.btn-login .caret{align-self:center;width:7px;height:14px;margin-right:12px;background:var(--brand-2);animation:caret 1.1s steps(1) infinite}
@keyframes caret{50%{opacity:0}}
/* มุม L สี่มุม กางออกตอนชี้ (สัญลักษณ์เดียวกับกล่องราคา/ฟอร์ม) */
.btn-login::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:inset .18s var(--ease),opacity .18s var(--ease);background-image:
  linear-gradient(var(--brand-2),var(--brand-2)),linear-gradient(var(--brand-2),var(--brand-2)),linear-gradient(var(--brand-2),var(--brand-2)),linear-gradient(var(--brand-2),var(--brand-2)),
  linear-gradient(var(--brand-2),var(--brand-2)),linear-gradient(var(--brand-2),var(--brand-2)),linear-gradient(var(--brand-2),var(--brand-2)),linear-gradient(var(--brand-2),var(--brand-2));
  background-repeat:no-repeat;background-size:8px 1.5px,1.5px 8px,8px 1.5px,1.5px 8px,8px 1.5px,1.5px 8px,8px 1.5px,1.5px 8px;
  background-position:0 0,0 0,100% 0,100% 0,0 100%,0 100%,100% 100%,100% 100%}
.btn-login:hover::before,.btn-login:focus-visible::before{inset:-6px;opacity:1}
.btn-login:hover .ico svg path:nth-child(n+2),.btn-login:focus-visible .ico svg path:nth-child(n+2){transform:translateX(3px)}
.btn-login:hover{background:var(--ground)}
.btn-login:focus-visible{outline:none}
.nav-mobile{display:none;position:relative}
.nav-mobile summary{list-style:none;cursor:pointer;padding:9px 12px;border:1px solid var(--line-strong);border-radius:2px;font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--ink)}
.nav-mobile summary::-webkit-details-marker{display:none}
.nav-mobile nav{position:absolute;right:0;top:calc(100% + 8px);background:var(--paper);border:1px solid var(--grid);padding:6px;display:flex;flex-direction:column;min-width:250px;max-height:calc(100vh - 90px);overflow-y:auto;counter-reset:mnav}
.nav-mobile nav a{padding:10px 12px;text-decoration:none;color:var(--ink);font-family:var(--f-mono);font-size:13px;counter-increment:mnav;border-bottom:1px solid var(--line)}
.nav-mobile nav a:last-child{border-bottom:0}
.nav-mobile nav a::before{content:counter(mnav,decimal-leading-zero) ". ";color:var(--muted)}
.nav-mobile nav a.sub{counter-increment:none;padding:7px 12px 7px 40px;font-size:12px;color:var(--muted)}
.nav-mobile nav a.sub::before{content:"└ ";color:var(--line-strong)}
.nav-mobile nav a:hover{background:var(--ground)}
@media (max-width:1120px){.nav-main{display:none}.nav-mobile{display:block;margin-left:auto}}
@media (max-width:520px){.btn-login .txt{padding-left:10px;font-size:12px}.btn-login .caret{margin-right:9px}.logo img{height:30px}.site-top .wrap{gap:10px}.site-top .btn{padding:9px 12px}}

/* ---------- ส่วนทั่วไป: ทุก section แบ่งด้วยเส้น 1px เต็มความกว้าง ---------- */
section.blk{padding-block:88px;border-top:1px solid var(--line)}
section.blk.tight-top{padding-top:88px}
.sec-head{display:flex;flex-direction:column;gap:14px;margin-bottom:40px;max-width:46em}
.sec-head h2{font-size:clamp(30px,3.6vw,46px);font-weight:700;line-height:1.1}
.sec-head p{color:var(--muted);font-size:17px}
.page-head{padding-block:56px 40px;border-bottom:1px solid var(--line)}
.page-head .wrap{display:flex;flex-direction:column;gap:14px}
.page-head h1{font-size:clamp(32px,4.6vw,56px);font-weight:700;line-height:1.08}
.page-head p{color:var(--muted);font-size:17px;max-width:46em}
.crumb{font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--muted)}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--ink)}

/* เครื่องหมายมุมรูป L 10px สี่มุม ยื่นออกนอกกรอบ 6px — วาดด้วย ::before ไม่ต้องเพิ่ม element */
.corners,.price-card,.card{position:relative}
.corners::before,.price-card::before,.card::before{content:"";position:absolute;inset:-6px;pointer-events:none;z-index:1;background-image:
  linear-gradient(var(--ink),var(--ink)),linear-gradient(var(--ink),var(--ink)),
  linear-gradient(var(--ink),var(--ink)),linear-gradient(var(--ink),var(--ink)),
  linear-gradient(var(--ink),var(--ink)),linear-gradient(var(--ink),var(--ink)),
  linear-gradient(var(--ink),var(--ink)),linear-gradient(var(--ink),var(--ink));
  background-repeat:no-repeat;
  background-size:10px 2px,2px 10px,10px 2px,2px 10px,10px 2px,2px 10px,10px 2px,2px 10px;
  background-position:0 0,0 0,100% 0,100% 0,0 100%,0 100%,100% 100%,100% 100%}

/* ---------- hero ---------- */
.hero{border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:72px 80px}
.hero-copy{min-width:0;display:flex;flex-direction:column;gap:26px}
.hero h1{font-size:clamp(40px,6.2vw,84px);font-weight:700;line-height:1.05;letter-spacing:-.035em}
.hero h1 em{font-style:normal;color:var(--brand-2)}
.hero .lead{font-size:17px;color:var(--text);max-width:34em;border-left:1px solid var(--grid);padding-left:18px}
.hero .cta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.hero .price-hint{font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:var(--muted)}
.hero .price-hint b{color:var(--ink);font-weight:500}
@media (max-width:960px){.hero .wrap{grid-template-columns:minmax(0,1fr);gap:44px}}

/* วงโคจร: ใบกำกับภาษีตรงกลาง สต็อก / บัญชี / ภาษี โคจรรอบ (เส้นประ) หมุน 20s linear */
.orbit-box{position:relative;width:100%;max-width:460px;margin-inline:auto;aspect-ratio:1;border:1px solid var(--line-strong);background:var(--paper)}
.orbit-box .tag{position:absolute;font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding:10px 12px}
.orbit-box .tl{top:0;left:0}.orbit-box .br{bottom:0;right:0}
.orbit{position:absolute;inset:12%;border:1px dashed var(--line-strong);border-radius:50%}
.orbit::after{content:"";position:absolute;inset:22%;border:1px dashed var(--line);border-radius:50%}
.orbit .core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:8px;z-index:2}
.orbit .core i{width:16px;height:16px;background:var(--brand)}
.orbit .core>span{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;color:var(--ink);background:var(--paper);padding:2px 6px;border:1px solid var(--line-strong);white-space:nowrap}
.spin{position:absolute;inset:0;animation:spin 20s linear infinite}
.arm{position:absolute;left:50%;top:50%;width:50%;height:1px;transform-origin:0 50%;background:var(--line-strong)}
.arm .node{position:absolute;right:-7px;top:-7px;width:14px;height:14px;border:1px solid var(--grid)}
.arm .label{position:absolute;right:-60px;top:16px;width:120px;text-align:center}
.arm .label span{display:inline-block;font-family:var(--f-mono);font-size:11px;letter-spacing:.04em;background:var(--paper);border:1px solid var(--line-strong);padding:3px 7px;color:var(--ink);white-space:nowrap}
.arm.a1{transform:rotate(-90deg)}.arm.a1 .node{background:var(--coral)}.arm.a1 .label{transform:rotate(90deg)}
.arm.a2{transform:rotate(30deg)}.arm.a2 .node{background:var(--mint)}.arm.a2 .label{transform:rotate(-30deg)}
.arm.a3{transform:rotate(150deg)}.arm.a3 .node{background:var(--gold)}.arm.a3 .label{transform:rotate(-150deg)}
/* ป้ายต้องตั้งตรงเสมอ: .label ชดเชยมุมของแขน (ค่าคงที่) · span หมุนกลับทิศกับวงด้วยความเร็วเดียวกัน */
.arm .label span{animation:spin 20s linear infinite reverse}
@keyframes spin{to{transform:rotate(360deg)}}
.orbit-box{overflow:hidden}
@media (max-width:520px){.orbit{inset:22%}.orbit .core .docno{display:none}.arm .label span{font-size:10px;padding:2px 5px}}

/* ---------- ใบกำกับภาษี → สต็อก / บัญชี / ภาษี ---------- */
.flow{position:relative;min-width:0;display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:24px;align-items:stretch}
.doc{background:var(--paper);border:1px solid var(--grid);padding:24px 24px 20px;position:relative;font-size:13px;min-width:0;color:var(--text)}
.doc-head{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--grid);padding-bottom:12px;margin-bottom:12px}
.doc-head h3{font-size:16px;letter-spacing:0}
.doc-head .co{font-size:12px;color:var(--muted)}
.doc-head .meta{text-align:right;font-family:var(--f-mono);font-size:11px;color:var(--muted)}
.doc-head .orig{display:inline-block;border:1px solid var(--line-strong);padding:0 6px;font-size:10px;letter-spacing:.1em;margin-bottom:4px}
.doc .to{font-size:12px;color:var(--muted);margin-bottom:8px}
.doc table{width:100%;border-collapse:collapse}
.doc th{font-family:var(--f-mono);font-weight:400;color:var(--muted);text-align:left;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;border-bottom:1px solid var(--line);padding:5px 0}
.doc td{padding:6px 0;border-bottom:1px solid var(--line);vertical-align:top}
.doc .r{text-align:right;white-space:nowrap;padding-left:10px}
.doc tfoot td{border:0;padding:3px 0}
.doc tfoot tr:last-child td{font-weight:600;border-top:1px solid var(--grid);padding-top:8px;font-size:14px;color:var(--ink)}
.stamp{position:absolute;right:42%;bottom:58px;transform:rotate(-8deg);border:1.5px solid var(--stamp);color:var(--stamp);font-family:var(--f-mono);font-weight:500;font-size:12px;letter-spacing:.1em;padding:3px 10px;animation:stamp .35s .9s both var(--ease)}
@keyframes stamp{from{transform:rotate(-8deg) scale(1.4);opacity:0}to{transform:rotate(-8deg) scale(1);opacity:1}}
.outs{display:flex;flex-direction:column;gap:1px;background:var(--grid);border:1px solid var(--grid);min-width:0;align-self:start}
.out{background:var(--paper);padding:14px 16px;font-size:12.5px;position:relative;border-left:3px solid transparent}
.out:nth-child(1){border-left-color:var(--coral)}.out:nth-child(2){border-left-color:var(--mint)}.out:nth-child(3){border-left-color:var(--gold)}
.out .k{font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);display:block;margin-bottom:6px}
.out .row{display:flex;justify-content:space-between;gap:8px}
.neg{color:var(--stamp)} .pos{color:var(--ok)}
@media (max-width:620px){.flow{grid-template-columns:minmax(0,1fr)}.stamp{right:auto;left:40%;bottom:52px}}

/* ---------- เลือกประเภทธุรกิจ ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:0;margin-bottom:-1px;position:relative;z-index:1}
.tab{font-family:var(--f-mono);font-size:12.5px;letter-spacing:.04em;padding:12px 16px;border:1px solid var(--line-strong);margin-right:-1px;margin-bottom:-1px;background:var(--ground);color:var(--muted);cursor:pointer;border-radius:0}
.tab:hover{color:var(--ink)}
.tab[aria-selected="true"]{background:var(--paper);color:var(--ink);border-bottom-color:var(--paper);box-shadow:inset 0 2px 0 var(--brand-2)}
.panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:40px;align-items:start;background:var(--paper);border:1px solid var(--line-strong);padding:36px}
.panel>div{min-width:0}
.panel h3{font-size:26px;margin-bottom:10px}
.panel .who{color:var(--muted);margin-bottom:22px}
.ticks{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;border-top:1px solid var(--line)}
.ticks li{display:grid;grid-template-columns:28px 1fr;gap:8px;padding:11px 0;border-bottom:1px solid var(--line)}
.ticks li::before{content:"+";font-family:var(--f-mono);color:var(--brand-2);line-height:1.7}
.shot{border:1px solid var(--grid);background:var(--paper);overflow:hidden}
.shot .bar{display:flex;gap:6px;padding:9px 12px;border-bottom:1px solid var(--grid);font-family:var(--f-mono);font-size:11px;letter-spacing:.04em;color:var(--muted);align-items:center;background:var(--ground)}
.shot .bar i{width:8px;height:8px;border:1px solid var(--line-strong);display:inline-block}
.shot .bar span{margin-left:8px}
.shot .body{padding:16px;font-size:13px;overflow-x:auto}
.shot table{width:100%;border-collapse:collapse;min-width:340px}
.shot th{text-align:left;font-family:var(--f-mono);font-weight:400;color:var(--muted);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;padding:6px 8px;border-bottom:1px solid var(--grid)}
.shot td{padding:8px;border-bottom:1px solid var(--line)}
.shot .r{text-align:right;white-space:nowrap}
.pill{display:inline-block;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.04em;padding:1px 7px;background:var(--brand-soft);color:var(--ink);white-space:nowrap;border-radius:2px}
.pill.warn{background:var(--coral);color:#3A1205}
.pill.ok{background:var(--mint);color:#063A1F}
.rooms{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--grid);border:1px solid var(--grid);min-width:300px}
.room{padding:12px;background:var(--paper);font-size:12px}
.room b{display:block;font-family:var(--f-mono);font-weight:500;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.room .num{font-family:var(--f-display);font-size:24px;font-weight:700;color:var(--ink)}
.receipt{max-width:230px;margin-inline:auto;background:var(--paper);border:1px dashed var(--line-strong);padding:14px;font-family:var(--f-mono);font-size:12px;line-height:1.55}
.receipt .c{text-align:center}
.receipt .rw{display:flex;justify-content:space-between;gap:8px}
.receipt hr{border:0;border-top:1px dashed var(--muted);margin:6px 0}
@media (max-width:860px){.panel{grid-template-columns:minmax(0,1fr);padding:24px}}

/* ---------- Bento: เซลล์คั่นด้วยช่องว่าง 1px สีกริด ---------- */
.jobs,.bento{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--grid);border:1px solid var(--grid)}
.job{background:var(--ground);padding:32px;display:flex;flex-direction:column;gap:12px;min-width:0}
.job .tag{align-self:flex-start;font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);padding-left:10px;border-left:3px solid var(--coral)}
.job:nth-child(3n+2) .tag{border-left-color:var(--mint)}
.job:nth-child(3n) .tag{border-left-color:var(--gold)}
.job h3{font-size:22px}
.job p{color:var(--muted);font-size:15px}
.job .mock{margin-top:auto;border:1px solid var(--line-strong);background:var(--paper);font-family:var(--f-mono);font-size:11.5px;line-height:1.7;padding:10px 12px;color:var(--text)}
.job .mock .row{display:flex;justify-content:space-between;gap:10px}
.job .mock .chip{display:inline-block;padding:0 6px;font-size:10.5px;border-radius:2px}
.chip.c{background:var(--coral);color:#3A1205}.chip.m{background:var(--mint);color:#063A1F}.chip.g{background:var(--gold);color:#3A2D00}
@media (max-width:900px){.jobs,.bento{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.jobs,.bento{grid-template-columns:minmax(0,1fr)}.job{padding:24px}}

/* ---------- เครื่องมือ (การ์ด) ---------- */
/* เส้นอยู่ที่การ์ด ไม่ใช่พื้นกริด — ช่องที่ยังว่างในแถวจึงโปร่ง ไม่เป็นแผ่นสีเทา */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));border-top:1px solid var(--grid);border-left:1px solid var(--grid)}
.tool-card{background:var(--ground);border-right:1px solid var(--grid);border-bottom:1px solid var(--grid);padding:26px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--text);min-width:0;transition:background-color .15s var(--ease)}
a.tool-card:hover{background:var(--paper)}
a.tool-card:hover b{color:var(--brand-2)}
.tool-card b{font-family:var(--f-display);font-size:19px;line-height:1.3;color:var(--ink);letter-spacing:-.01em}
.tool-card span{font-size:14.5px;color:var(--muted)}
.tool-card .go{margin-top:auto;padding-top:10px;font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--ink)}
.tool-card.soon b{color:var(--muted)}
.tool-card .free{align-self:flex-start;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;padding:1px 7px;background:var(--mint);color:#063A1F;border-radius:2px}

/* ---------- ใช้ได้ทุกที่ ---------- */
.devices{background:var(--ink);color:#E8ECF4;border-top:0}
.devices .eyebrow{color:#9FB2D8}
.devices h2{color:#FFFFFF}
.devices .sec-head p{color:#B9C4DA}
.dev-row{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18)}
.dev{background:var(--ink);padding:26px 22px;display:flex;flex-direction:column;gap:10px}
.dev svg{width:28px;height:28px;stroke:var(--mint);fill:none;stroke-width:1.4;stroke-linecap:square;stroke-linejoin:miter}
.dev b{font-family:var(--f-display);font-size:18px;color:#FFFFFF}
.dev span{font-size:14px;color:#B9C4DA}
@media (max-width:900px){.dev-row{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:420px){.dev-row{grid-template-columns:minmax(0,1fr)}}

/* ---------- ราคา ---------- */
.price-card{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);border:1px solid var(--grid);background-color:var(--paper)}
.price-main{padding:44px;display:flex;flex-direction:column;gap:16px;border-right:1px solid var(--grid);min-width:0}
.price-main .from{font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.price-main .amt{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.price-main .amt b{font-family:var(--f-display);font-size:clamp(64px,9vw,104px);font-weight:700;line-height:.9;letter-spacing:-.04em;color:var(--ink)}
.price-main .amt span{font-family:var(--f-mono);font-size:14px;color:var(--muted)}
.price-main .vat{display:inline-flex;align-self:flex-start;font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;padding:3px 8px;background:var(--gold);color:#3A2D00;border-radius:2px}
.price-main p{color:var(--muted)}
.price-side{padding:44px;display:flex;flex-direction:column;gap:16px;background:var(--ground);min-width:0}
.price-side h3{font-size:22px}
.price-side p{color:var(--muted)}
.price-side .lbl{font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:block}
.copyable{font-family:var(--f-mono);font-size:20px;font-weight:500;color:var(--ink);text-decoration:none}
@media (max-width:760px){.price-card{grid-template-columns:minmax(0,1fr)}.price-main{border-right:0;border-bottom:1px solid var(--grid)}.price-main,.price-side{padding:28px}}

/* ---------- FAQ ---------- */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--grid);max-width:880px;counter-reset:q}
.faq details{border-bottom:1px solid var(--line-strong)}
.faq summary{cursor:pointer;list-style:none;padding:22px 44px 22px 0;font-family:var(--f-display);font-weight:600;font-size:19px;color:var(--ink);position:relative;counter-increment:q;display:flex;gap:16px}
.faq summary::before{content:counter(q,decimal-leading-zero);font-family:var(--f-mono);font-size:12px;font-weight:400;color:var(--muted);padding-top:6px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:18px;font-family:var(--f-mono);font-size:20px;color:var(--ink);font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 22px 36px;color:var(--muted);max-width:46em}

/* ---------- ติดต่อ + footer ---------- */
.contact{background:var(--contact-bg);color:#FFFFFF}
.contact .wrap{display:flex;flex-wrap:wrap;gap:28px 48px;align-items:center;padding-block:52px}
.contact h2{font-size:clamp(26px,3vw,36px);flex:1 1 320px;color:#FFFFFF}
.contact .ch{display:flex;flex-direction:column;font-family:var(--f-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#B9C4DA}
.contact .ch a{font-size:19px;letter-spacing:0;text-transform:none;font-weight:500;color:#FFFFFF;text-decoration:none}
.contact .btn{background:#FFFFFF;color:var(--contact-btn);border-color:#FFFFFF}
.contact .btn:hover{background:var(--mint);border-color:var(--mint)}
.site-foot{padding-block:52px 28px;font-size:14px;color:var(--muted);border-top:1px solid var(--grid);background:var(--ground)}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));gap:32px}
.foot-brand{display:flex;flex-direction:column;gap:14px;max-width:280px}
.site-foot .logo img{height:30px}
.site-foot nav{display:flex;flex-direction:column;gap:9px}
.site-foot nav b{font-family:var(--f-mono);font-size:11px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin-bottom:6px}
.site-foot a{text-decoration:none;color:var(--muted)}
.site-foot a:hover{color:var(--ink)}
.foot-copy{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-family:var(--f-mono);font-size:11px;letter-spacing:.06em}
@media (max-width:860px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.foot-brand{grid-column:1/-1}}
@media (max-width:460px){.foot-grid{grid-template-columns:minmax(0,1fr)}}

/* ---------- เนื้อหายาว (นโยบาย ฯลฯ) ---------- */
.prose{max-width:820px;padding-block:48px 88px}
.prose h2{font-size:30px;margin:56px 0 18px;padding-top:28px;border-top:1px solid var(--grid)}
.prose h4{font-size:19px;margin:32px 0 10px;letter-spacing:-.01em}
.prose p,.prose li{color:var(--text)}
.prose p{margin-bottom:12px}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 12px;display:flex;flex-direction:column;gap:4px}
.prose hr{border:0;border-top:1px solid var(--line);margin:40px 0}

/* ---------- ฟอร์ม (หน้าเครื่องมือ) — กล่องมีเครื่องหมายมุม ---------- */
.card{background-color:var(--ground);border:1px solid var(--line-strong);padding:28px;display:flex;flex-direction:column;gap:16px}
.card>h2{font-size:22px;display:flex;align-items:center;gap:12px}
.step{display:inline-grid;place-items:center;width:28px;height:28px;background:var(--brand);color:var(--on-brand);font-family:var(--f-mono);font-size:13px;flex:none}
.fgrid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}
.fgrid>*{grid-column:span 12;min-width:0;display:flex;flex-direction:column;gap:6px}
@media (min-width:768px){.fgrid .s2{grid-column:span 2}.fgrid .s3{grid-column:span 3}.fgrid .s4{grid-column:span 4}.fgrid .s6{grid-column:span 6}.fgrid .s8{grid-column:span 8}}
.fgrid label{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.06em;color:var(--muted)}
.req{color:var(--stamp)}
.input{width:100%;font:inherit;font-size:15px;color:var(--text);background:#FFFFFF;border:1px solid var(--line-strong);border-radius:0;padding:10px 12px}
.input:focus{outline:none;border-color:var(--ink);box-shadow:inset 0 -2px 0 var(--brand-2)}
.hint{font-size:14px;color:var(--muted)}

/* ---------- หน้าเจาะลึกประเภทธุรกิจ (/solutions/*) ---------- */
.sol-hero{border-bottom:1px solid var(--line)}
.sol-hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;padding-block:56px 72px}
.sol-hero .copy{display:flex;flex-direction:column;gap:22px;min-width:0}
.sol-hero h1{font-size:clamp(34px,4.8vw,62px);font-weight:700;line-height:1.08;letter-spacing:-.03em}
.sol-hero .lead{font-size:17px;color:var(--text);border-left:1px solid var(--grid);padding-left:18px}
.sol-hero .cta{display:flex;flex-wrap:wrap;gap:10px}
.sol-hero .note{font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:var(--muted)}
.sol-hero .note b{color:var(--ink);font-weight:500}
@media (max-width:960px){.sol-hero .wrap{grid-template-columns:minmax(0,1fr);gap:36px}}

.pains{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--grid);border:1px solid var(--grid)}
.pain{background:var(--ground);padding:28px;display:flex;flex-direction:column;gap:12px;min-width:0}
.pain .q{font-family:var(--f-display);font-weight:600;font-size:18px;color:var(--ink);padding-left:12px;border-left:3px solid var(--coral)}
.pain .a{color:var(--muted)}
@media (max-width:760px){.pains{grid-template-columns:minmax(0,1fr)}}

.fgroups{display:flex;flex-direction:column;border-top:1px solid var(--grid)}
.fgroup{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;border-bottom:1px solid var(--line-strong);padding-block:36px}
.fgroup>header h2{font-size:26px}
.fgroup>header p{font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:var(--muted);margin-top:10px}
.fitems{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 36px}
.fitem h3{font-size:17px;margin-bottom:6px;letter-spacing:-.01em}
.fitem p{color:var(--muted);font-size:15px}
@media (max-width:860px){.fgroup{grid-template-columns:minmax(0,1fr);gap:18px}}
@media (max-width:560px){.fitems{grid-template-columns:minmax(0,1fr)}}

.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--grid);border:1px solid var(--grid);counter-reset:st}
.steps li{counter-increment:st;background:var(--ground);padding:22px;display:flex;flex-direction:column;gap:8px}
.steps li::before{content:counter(st,decimal-leading-zero);font-family:var(--f-mono);font-size:12px;letter-spacing:.06em;color:var(--brand-2)}
.steps b{font-family:var(--f-display);font-size:17px;color:var(--ink)}
.steps span{font-size:14px;color:var(--muted)}
.fit{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--grid);border:1px solid var(--grid)}
.fit>div{background:var(--ground);padding:26px;min-width:0}
.fit h3{font-size:19px;margin-bottom:10px}
@media (max-width:760px){.fit{grid-template-columns:minmax(0,1fr)}}

/* ---------- เครื่องมือรายตัว (/tools/*) ---------- */
.tool-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;padding-block:32px 72px;align-items:start}
.tool-wrap .card{min-width:0}
.result{background:#FFFFFF;border:1px solid var(--grid);padding:24px;display:flex;flex-direction:column;gap:14px;min-width:0}
.result .lbl{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.result .big{font-family:var(--f-display);font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.35;color:var(--ink);word-break:break-word}
.result .rows{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.result .rows div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}
.result .rows div.total{border-bottom:0;border-top:1px solid var(--grid);font-weight:600;color:var(--ink)}
.result .rows b{font-family:var(--f-mono);font-weight:500;font-variant-numeric:tabular-nums}
.result .acts{display:flex;flex-wrap:wrap;gap:8px}
.result .empty{color:var(--muted)}
.seg{display:flex;flex-wrap:wrap;border:1px solid var(--line-strong);align-self:flex-start}
.seg label{display:block;cursor:pointer}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:block;padding:9px 14px;font-family:var(--f-mono);font-size:12.5px;color:var(--muted);border-right:1px solid var(--line-strong)}
.seg label:last-child span{border-right:0}
.seg input:checked+span{background:var(--ink);color:#FFFFFF}
.seg input:focus-visible+span{outline:2px solid var(--brand-2);outline-offset:-2px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chips button{font-family:var(--f-mono);font-size:12px;padding:5px 10px;border:1px solid var(--line-strong);background:var(--paper);color:var(--ink);cursor:pointer}
.chips button:hover{border-color:var(--ink)}
.input.big{font-family:var(--f-mono);font-size:22px;padding:12px 14px}
.field-err{font-size:13px;color:var(--stamp);min-height:1.2em}
.qr-box{display:grid;place-items:center;background:#FFFFFF;border:1px solid var(--line);padding:18px}
.qr-box canvas{width:100%;max-width:340px;height:auto;image-rendering:pixelated}
.note-list{display:flex;flex-direction:column;gap:8px;color:var(--muted);font-size:15px;padding-left:1.2em;margin:0}
@media (max-width:860px){.tool-wrap{grid-template-columns:minmax(0,1fr)}}
.amt-steps{display:flex;flex-direction:column;gap:6px}
.amt-steps .chips button{min-width:72px;min-height:36px}
.amt-steps .chips button.clear{border-color:var(--stamp);color:var(--stamp)}
.amt-steps .chips button.clear:hover{background:var(--stamp);color:#FFFFFF}
.ref-note{font-size:14px;color:var(--muted)}
.ref-note a{color:var(--brand-2)}
.ref-note.warn{color:var(--stamp)}
/* ช่องจำนวนเงิน: ตัวเลขกึ่งกลาง ทศนิยม 2 ตำแหน่ง */
.input.money{text-align:center;font-variant-numeric:tabular-nums}

/* แถบนับวันยื่นภาษี */
.tax-bar{background:var(--paper);border-bottom:1px solid var(--line);font-size:13.5px}
.tax-bar .wrap{display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center;padding-block:9px}
.tax-bar .tb-items{display:flex;flex-wrap:wrap;gap:6px 20px}
.tax-bar .tb-item{color:var(--text)}
.tax-bar .tb-item b{font-family:var(--f-mono);font-weight:500;color:var(--ink)}
.tax-bar .tb-item.soon b{color:var(--stamp)}
.tax-bar a{margin-left:auto;font-size:12.5px;color:var(--muted)}
/* แถบตัวเลขจริง — section สั้นประโยคเดียว คั่นจังหวะหน้า */
.proof{border-top:1px solid var(--line);padding-block:44px}
.proof .wrap{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 28px}
.proof .say{font-family:var(--f-display);font-size:clamp(22px,2.8vw,32px);font-weight:600;color:var(--ink);line-height:1.35;max-width:30em}
.proof .say b{font-family:var(--f-display);color:var(--brand-2)}
.proof .src{font-family:var(--f-mono);font-size:12px;letter-spacing:.04em;color:var(--muted)}