/* Skills Lab — Knowledge Base shell (sidebar drawer + prev/next) */
.kb-btn{position:fixed;left:18px;bottom:18px;z-index:120;display:inline-flex;align-items:center;gap:8px;background:rgb(var(--ink));color:#fff;border:0;border-radius:12px;padding:11px 16px;font-family:"Anuphan",system-ui,sans-serif;font-weight:700;font-size:14px;cursor:pointer;box-shadow:0 10px 28px -10px rgb(26 32 50/.5)}
.kb-btn:hover{background:rgb(var(--accent))}
.kb-ov{position:fixed;inset:0;z-index:130;background:rgb(26 32 50/.45);display:none}
.kb-ov.on{display:block}
.kb-dr{position:fixed;top:0;left:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:131;transform:translateX(-100%);transition:transform .25s ease;overflow-y:auto;box-shadow:0 0 60px -12px rgb(0 0 0/.35);padding:18px 16px}
.kb-dr.on{transform:none}
.kb-dr .kh{font-family:"Bai Jamjuree",sans-serif;font-weight:700;font-size:17px;display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.kb-dr .kh button{border:0;background:none;font-size:22px;line-height:1;cursor:pointer;color:rgb(var(--muted))}
.kb-dr .kbtop{display:flex;gap:8px;margin:4px 0 10px}
.kb-dr .kbtop a{flex:1;text-align:center;font-size:13px;font-weight:600;padding:9px;border-radius:9px;background:rgb(var(--ink));color:#fff;text-decoration:none}
.kb-dr .kbtop a:hover{background:rgb(var(--accent))}
.kb-dr .kg{font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.06em;color:rgb(var(--muted));margin:15px 0 4px;text-transform:uppercase}
.kb-dr a{display:block;font-size:14px;padding:7px 10px;border-radius:9px;color:rgb(var(--ink));text-decoration:none;line-height:1.4}
.kb-dr a:hover{background:rgb(var(--ink)/.05)}
.kb-dr a.on{background:rgb(var(--accent)/.1);color:rgb(var(--accent));font-weight:700}
.kb-dr a .qn{font-family:"JetBrains Mono",monospace;font-size:11px;color:rgb(var(--muted));margin-right:6px}
.kbpn{max-width:1040px;margin:34px auto 0;padding:0 22px;display:flex;justify-content:space-between;gap:12px}
.kbpn a{flex:1;min-width:0;border:1px solid rgb(var(--line)/.12);border-radius:12px;padding:13px 16px;text-decoration:none;background:#fff;box-shadow:var(--sh-sm);transition:.15s}
.kbpn a:hover{border-color:rgb(var(--accent)/.4);transform:translateY(-2px)}
.kbpn .d{font-size:11px;color:rgb(var(--muted))}
.kbpn .t{font-family:"Bai Jamjuree",sans-serif;font-weight:700;font-size:14.5px;color:rgb(var(--ink));margin-top:2px}
.kbpn a.nx{text-align:right}
@media(max-width:560px){.kbpn{flex-direction:column}.kb-btn{padding:10px 13px;font-size:13px}}
@media print{.kb-btn,.kb-ov,.kb-dr,.kbpn{display:none!important}}

/* ===== CTA แปลงผู้อ่าน → ลูกค้า (ฉีดท้ายบทความ) ===== */
.sl-conv{max-width:880px;margin:40px auto 0;padding:0 20px;box-sizing:border-box}
.sl-lead{background:rgb(6 199 85/.07);border:1px solid rgb(6 199 85/.32);border-radius:14px;padding:15px 20px;display:flex;align-items:center;gap:15px;flex-wrap:wrap}
.sl-lead .t{flex:1;min-width:210px}
.sl-lead .t b{font-family:"Bai Jamjuree",sans-serif;font-size:15.5px;display:block;color:rgb(var(--ink))}
.sl-lead .t span{font-size:13px;color:rgb(var(--muted));line-height:1.5}
.sl-lead a{background:#06c755;color:#fff;font-weight:700;font-size:14px;border-radius:10px;padding:11px 18px;text-decoration:none;white-space:nowrap;box-shadow:0 10px 22px -8px rgb(6 199 85/.5)}
.sl-lead a:hover{filter:brightness(1.05)}
.sl-course{margin-top:14px;background:rgb(var(--ink));color:#fff;border-radius:18px;padding:26px 28px;background-image:radial-gradient(440px 210px at 88% -25%,rgb(37 99 235/.34),transparent 62%)}
.sl-course h3{font-family:"Bai Jamjuree",sans-serif;font-size:clamp(18px,2.6vw,22px);margin-bottom:7px}
.sl-course p{color:rgb(255 255 255/.82);font-size:14px;line-height:1.7;margin-bottom:15px}
.sl-course .feat{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.sl-course .feat span{font-size:12.5px;font-weight:600;background:rgb(255 255 255/.1);border:1px solid rgb(255 255 255/.14);border-radius:999px;padding:7px 13px}
.sl-course .btns{display:flex;gap:11px;flex-wrap:wrap}
.sl-course .btns a{display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:14.5px;border-radius:11px;padding:12px 22px;text-decoration:none}
.sl-course .btns a.primary{background:#fff;color:rgb(var(--ink))}
.sl-course .btns a.primary:hover{background:#dbeafe}
.sl-course .btns a.lineb{background:#06c755;color:#fff}

/* ฟอร์มเก็บ lead ในแถบของฟรี */
.sl-leadform{display:flex;gap:8px;flex-wrap:wrap;align-items:center;flex:1;min-width:230px}
.sl-leadform input{font-family:inherit;font-size:14px;padding:10px 12px;border:1px solid rgb(var(--line)/.22);border-radius:10px;background:#fff;color:rgb(var(--ink));min-width:120px;flex:1}
.sl-leadform input:focus{outline:none;border-color:#06c755;box-shadow:0 0 0 3px rgb(6 199 85/.12)}
.sl-leadform button{background:#06c755;color:#fff;font-weight:700;font-size:14px;border:0;border-radius:10px;padding:11px 18px;cursor:pointer;white-space:nowrap;font-family:inherit;box-shadow:0 10px 22px -8px rgb(6 199 85/.5)}
.sl-leadform button:hover{filter:brightness(1.05)}
.sl-leadform button:disabled{opacity:.6;cursor:default}
@media(max-width:560px){.sl-leadform{width:100%}.sl-leadform input{min-width:0}}

/* Byline บนสุดบทความ — เขียนโดยพี่ปุ้ย (E-E-A-T + ความน่าเชื่อถือ) */
.sl-byline{display:flex;align-items:center;gap:15px;padding:4px 0 18px;margin:2px 0 10px;border-bottom:1px solid rgb(var(--line)/.1)}
.sl-byline img{width:56px;height:56px;border-radius:50%;object-fit:cover;flex:none;box-shadow:0 6px 16px -6px rgb(26 32 50/.4)}
.sl-byline .bn{font-size:16px;color:rgb(var(--ink))}
.sl-byline .bn a{color:rgb(var(--accent));font-weight:700;text-decoration:none}
.sl-byline .bn a:hover{text-decoration:underline}
.sl-byline .br{font-size:13px;color:rgb(var(--muted));margin-top:4px;line-height:1.45}
.sl-byline .bmore{margin-left:auto;align-self:center;font-size:13.5px;font-weight:700;color:rgb(var(--accent));white-space:nowrap;text-decoration:none}
@media(max-width:560px){.sl-byline .bmore{display:none}.sl-byline img{width:50px;height:50px}}