/* ==========================================================================
   SEO: ส่วน "รู้จัก YiB" หน้าแรก + หน้าบทความ /shipping /how-to-order
   สีตามแบรนด์: ส้ม #FF6B3D / กรมท่า #1F2937 / ครีม #FFF7F2
   ========================================================================== */

/* ---------- หน้าแรก: รู้จัก YiB (แนว "Power. Speed. Control." จาก 21st Features) ---------- */
.ab{padding:24px 0 72px}
.ab-head{text-align:center;max-width:720px;margin:0 auto 40px}
.ab-pill{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--accent-2,#F2542D);background:var(--accent-soft,#FFE6DB);border-radius:999px;padding:4px 14px;margin-bottom:16px}
.ab-h{margin:0 0 14px;font-family:Kanit,sans-serif;font-weight:600;font-size:clamp(32px,4.6vw,54px);line-height:1.1;letter-spacing:-.03em;color:var(--text,#1F2937)}
.ab-say{font-family:Mali,cursive;font-weight:700;color:var(--accent,#FF6B3D);white-space:nowrap}
.ab-sub{margin:0;font-size:16.5px;line-height:1.8;color:var(--muted,#6B7280)}
.ab-sub strong{color:var(--text,#1F2937);font-weight:600}
.ab-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.ab-c{position:relative;display:block;padding:30px 28px 28px;text-decoration:none;color:inherit;overflow:hidden;
  border-right:1px dashed var(--line-2,#E5D5CB);border-bottom:1px dashed var(--line-2,#E5D5CB)}
.ab-c:nth-child(3n){border-right:0}.ab-c:nth-child(n+4){border-bottom:0}
/* ลายตารางจางที่มุมขวาบน */
.ab-c::before{content:"";position:absolute;inset:0 0 auto auto;width:70%;height:110px;pointer-events:none;
  background-image:linear-gradient(var(--line-2,#E5D5CB) 1px,transparent 1px),linear-gradient(90deg,var(--line-2,#E5D5CB) 1px,transparent 1px);background-size:18px 18px;
  -webkit-mask:radial-gradient(ellipse at 100% 0,#000 0,transparent 72%);mask:radial-gradient(ellipse at 100% 0,#000 0,transparent 72%);opacity:.7;transition:opacity .3s}
.ab-c::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(260px circle at 100% 0,color-mix(in srgb,var(--accent,#FF6B3D) 10%,transparent),transparent 70%)}
.ab-c:hover::after{opacity:1}
.ab-c svg{position:relative;width:24px;height:24px;fill:none;stroke:var(--accent-2,#F2542D);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px;transition:transform .35s cubic-bezier(.3,1.6,.5,1)}
.ab-c:hover svg{transform:translateY(-2px) scale(1.08)}
.ab-c h3{position:relative;margin:0 0 6px;font-size:17px;font-weight:600;color:var(--text,#1F2937)}
.ab-c p{position:relative;margin:0;font-size:14px;line-height:1.65;color:var(--muted,#6B7280)}
a.ab-c h3::after{content:" →";color:var(--accent,#FF6B3D);opacity:0;transition:opacity .2s}
a.ab-c:hover h3::after{opacity:1}
.ab-more{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 28px;margin:32px 0 0;font-size:14.5px}
.ab-more a{color:var(--text,#1F2937);font-weight:600;text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--text,#1F2937) 25%,transparent);padding-bottom:2px}
.ab-more a:hover{color:var(--accent-2,#F2542D);border-color:var(--accent,#FF6B3D)}
@media (max-width:900px){
  .ab-grid{grid-template-columns:1fr 1fr}
  .ab-c:nth-child(3n){border-right:1px dashed var(--line-2,#E5D5CB)}
  .ab-c:nth-child(2n){border-right:0}
  .ab-c:nth-child(n+4){border-bottom:1px dashed var(--line-2,#E5D5CB)}
  .ab-c:nth-child(n+5){border-bottom:0}
}
@media (max-width:640px){
  .ab{padding:8px 0 48px}
  .ab-head{margin-bottom:24px}
  .ab-c{padding:18px 12px 16px}
  .ab-c svg{width:21px;height:21px;margin-bottom:10px}
  .ab-c h3{font-size:14.5px;line-height:1.35}
  .ab-c p{font-size:12.5px;line-height:1.55}
  .ab-c::before{height:70px}
  .ab-sub{font-size:15px}
}
/* ---------- หน้าบทความ (shipping / how-to-order) ---------- */
body.seo-page{margin:0;background:#FFF7F2;color:#1F2937;font:17px/1.85 "IBM Plex Sans Thai",Tahoma,sans-serif}
.seo-page *{box-sizing:border-box}
.seo-page a{color:#F2542D;text-underline-offset:4px}
.seo-shell{width:min(1040px,calc(100% - 40px));margin:auto}
.seo-top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,#FFF7F2 86%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid #F1E4DC}
.seo-top .seo-shell{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0;flex-wrap:wrap}
.seo-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#1F2937}
.seo-brand .wordmark{display:block;font-family:Kanit,sans-serif;font-weight:800;font-size:26px}
.seo-brand .ylogo{height:40px!important}
.seo-brand small{font-size:13px;color:#6B7280}
.seo-nav{display:flex;gap:4px;flex-wrap:wrap;font-size:15px}
.seo-nav a{color:#6B7280;text-decoration:none;padding:7px 13px;border-radius:999px;transition:background .2s,color .2s}
.seo-nav a:hover{background:#FFEFE7;color:#1F2937}
.seo-nav a[aria-current=page]{background:#FFE6DB;color:#F2542D;font-weight:600}
.seo-main{padding:22px 0 64px}
.seo-crumb{font-size:13.5px;color:#9CA3AF;margin:0 0 20px}.seo-crumb a{color:#6B7280}
.seo-hero{position:relative;overflow:hidden;padding:clamp(26px,5vw,56px);border:1px solid #F1E4DC;border-radius:28px;
  background:radial-gradient(120% 120% at 100% 0%,rgba(255,107,61,.16),transparent 55%),#FFEFE7}
.seo-kicker{color:#F2542D;font-weight:600;letter-spacing:.12em;font-size:12.5px;margin:0 0 12px;text-transform:uppercase}
.seo-page h1{font-family:Kanit,"IBM Plex Sans Thai",sans-serif;font-weight:600;font-size:clamp(30px,5vw,50px);line-height:1.15;margin:0 0 18px;letter-spacing:-.02em}
.seo-page h2{font-family:Kanit,"IBM Plex Sans Thai",sans-serif;font-weight:600;font-size:clamp(23px,3.4vw,32px);line-height:1.3;margin:0 0 14px;letter-spacing:-.01em}
.seo-page h3{font-size:18.5px;line-height:1.5;margin:0 0 6px}
.seo-page p{margin:0 0 16px;color:#4B5563}
.seo-page .seo-action{display:inline-flex;align-items:center;gap:8px;background:#FF6B3D;color:#fff;padding:13px 24px;border-radius:999px;text-decoration:none;font-weight:600;margin-top:8px;
  box-shadow:0 14px 28px -14px rgba(242,84,45,.7);transition:transform .2s,background .2s}
.seo-page .seo-action:hover{background:#F2542D;transform:translateY(-1px)}
.seo-block{padding:40px 0;border-bottom:1px dashed #E5D5CB}
.seo-block:last-child{border-bottom:0}
.seo-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.seo-card{background:#fff;padding:22px 24px;border:1px solid #F1E4DC;border-radius:20px;transition:border-color .2s,box-shadow .2s,transform .2s}
.seo-card:hover{border-color:rgba(255,107,61,.45);box-shadow:0 18px 36px -22px rgba(242,84,45,.45);transform:translateY(-2px)}
.seo-card p:last-child{margin-bottom:0}
.seo-note{background:#fff;border:1px solid #F1E4DC;border-left:4px solid #FF6B3D;padding:16px 20px;border-radius:12px;margin:20px 0;font-size:15.5px}
.seo-page ol{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:12px}
.seo-page ol>li{counter-increment:s;position:relative;padding:16px 18px 16px 64px;background:#fff;border:1px solid #F1E4DC;border-radius:18px}
.seo-page ol>li::before{content:counter(s);position:absolute;left:16px;top:16px;width:34px;height:34px;border-radius:50%;background:#FF6B3D;color:#fff;font-family:Kanit,sans-serif;font-weight:700;display:grid;place-items:center}
.seo-page ol>li p{margin:0}
.seo-page details{background:#fff;border:1px solid #F1E4DC;padding:16px 22px;border-radius:16px;margin:10px 0;transition:border-color .2s}
.seo-page details[open]{border-color:rgba(255,107,61,.45)}
.seo-page summary{font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:30px}
.seo-page summary::-webkit-details-marker{display:none}
.seo-page summary::after{content:"+";position:absolute;right:0;top:-1px;width:24px;height:24px;border-radius:50%;background:#FFE6DB;color:#F2542D;display:grid;place-items:center;transition:transform .3s}
.seo-page details[open] summary::after{transform:rotate(45deg)}
.seo-page details p{margin:12px 0 0}
.seo-footer{padding:28px 0;background:#fff;border-top:1px solid #F1E4DC;color:#6B7280;font-size:14px}
.seo-skip{position:absolute;top:-100px;left:10px}.seo-skip:focus{top:10px;background:#fff;padding:10px;z-index:30}
@media(max-width:650px){
  .seo-shell{width:calc(100% - 28px)}.seo-brand small{display:none}
  .seo-cards{grid-template-columns:1fr}.seo-hero{border-radius:20px}
  .seo-nav{width:100%;overflow-x:auto;flex-wrap:nowrap}.seo-nav a{white-space:nowrap}
  .seo-page ol>li{padding-left:58px}
}