:root{--gold:#bfa15f;--gold-d:#a8884a;--ink:#1a1a1a;--muted:#6b6b6b;--bg:#fff;--soft:#f6f5f2;--dark:#161616;--line:#eaeaea;--green:#06c755;
/* --gold-t = ทองเข้มสำหรับ "ตัวอักษรบนพื้นสว่าง" (ทองเดิม #bfa15f บนขาว = 2.48:1 ตกเกณฑ์ WCAG AA 4.5)
   ปุ่ม/พื้นหลัง/ไอคอนยังใช้ --gold เดิม → ลุคแบรนด์ไม่เปลี่ยน แค่ตัวหนังสืออ่านชัดขึ้นกลางแดด
   --muted เดิม #8c8c8c = 3.36:1 → #6b6b6b = 5.33:1 */
--gold-t:#8a6d2f}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font-family:'Kanit',system-ui,sans-serif;color:var(--ink);background:var(--soft);line-height:1.8;font-weight:300}
a{color:var(--gold-t);text-decoration:none}
img{max-width:100%}
h1,h2,h3{font-weight:400}
.nav{display:flex;align-items:center;gap:16px;padding:16px 32px;border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);z-index:20;flex-wrap:wrap}
.nav .brand{display:flex;align-items:center;gap:10px;font-weight:500;font-size:18px;color:var(--ink);letter-spacing:.5px}
.nav .brand-logo{height:36px;width:auto;display:block}
.nav-links{margin-left:auto;display:flex;gap:28px}
.nav-links a{color:var(--ink);font-weight:400;font-size:15px;letter-spacing:.3px}
.nav-links a:hover{color:var(--gold-t)}
.nav .nav-cta{background:var(--gold);color:#fff;padding:9px 20px;border-radius:2px;font-weight:500;font-size:14px;letter-spacing:.3px}
.nav .nav-cta:hover{background:var(--gold-d)}
.hero{text-align:center;padding:40px 24px;background-size:cover;background-position:center;color:#fff}
.hero-home{position:relative;min-height:90vh;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.8s ease-in-out;will-change:opacity,transform}
.hero-slide.is-active{opacity:1;animation:kenburns 9s ease-out both}
@keyframes kenburns{from{transform:scale(1.04)}to{transform:scale(1.15)}}
.hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(rgba(15,18,20,.40),rgba(15,18,20,.52) 55%,rgba(15,18,20,.68))}
.hero-home .hero-content{position:relative;z-index:2;width:100%}
.hero-dots{position:absolute;left:0;right:0;bottom:26px;z-index:3;display:flex;gap:11px;justify-content:center}
.hero-dots .dot{width:11px;height:11px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:.28s;box-shadow:0 1px 5px rgba(0,0,0,.4)}
.hero-dots .dot.is-active{background:var(--gold);transform:scale(1.3)}
@media(prefers-reduced-motion:reduce){.hero-slide{animation:none!important;transition:opacity .5s}.hero-slide.is-active{transform:none}}
.eyebrow{color:var(--gold-t);letter-spacing:4px;text-transform:uppercase;font-size:13px;text-align:center;margin:0 0 16px}
.hero h1{font-size:48px;font-weight:300;margin:0 0 22px;line-height:1.22;letter-spacing:.5px;text-shadow:0 2px 26px rgba(0,0,0,.5)}
.hero .lead{color:#e9e9e9;font-size:17px;font-weight:300;max-width:640px;margin:0 auto 32px;line-height:1.9;text-shadow:0 1px 12px rgba(0,0,0,.55)}
.hero-svc{text-align:left;padding:96px 36px;margin:0}
.hero-svc h1{font-size:38px}
.hero-svc .lead{margin-left:0;margin-right:auto}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero-svc .cta-btns{justify-content:flex-start}
.btn{padding:14px 32px;border-radius:2px;font-weight:500;font-size:14px;letter-spacing:.6px;display:inline-block;transition:.2s}
.btn-primary{background:var(--gold);color:#fff}
.btn-primary:hover{background:var(--gold-d)}
.btn-line{background:var(--green);color:#fff}
.btn-ghost{background:transparent;border:1px solid var(--gold);color:var(--gold)}
.btn-ghost:hover{background:var(--gold);color:#fff}
.block{max-width:1140px;margin:0 auto;padding:88px 32px}
.page{max-width:880px;margin:0 auto;padding:0 24px 50px}
.page .block{padding:40px 0;max-width:none}
.sec-title{font-size:33px;font-weight:300;text-align:center;margin:0 0 52px;letter-spacing:.5px;position:relative;padding-bottom:22px}
.sec-title:after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:46px;height:2px;background:var(--gold)}
.block h2{font-size:24px;font-weight:400;margin:0 0 18px}
.page .block h2{border-left:2px solid var(--gold);padding-left:14px}
.about{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about img{width:100%;height:400px;object-fit:cover}
.about h2{font-size:30px;font-weight:300;margin:0 0 18px;border:0;padding:0}
.about p{color:#666;margin:0 0 26px;line-height:1.95}
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.svc-card{display:flex;flex-direction:column;background:#fff;transition:.25s}
.svc-card img{width:100%;height:210px;object-fit:cover;display:block;filter:grayscale(.1);transition:.4s}
.svc-card:hover img{filter:none}
.svc-card-b{padding:22px 4px 4px;display:flex;flex-direction:column;gap:11px;flex:1}
.svc-card h3{margin:0;color:var(--ink);font-size:18px;font-weight:500;letter-spacing:.3px}
.svc-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.75;flex:1}
.svc-more{color:var(--gold-t);font-weight:500;font-size:13px;letter-spacing:.6px}
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.gallery img{width:100%;height:250px;object-fit:cover;display:block;transition:.4s;filter:grayscale(.18)}
.gallery img:hover{filter:none}
.dark-band{background:var(--dark);color:#e8e8e8}
.dark-band .sec-title{color:#fff}
.soft-band{background:var(--soft)}
.parallax-band{background-size:cover;background-position:center;background-attachment:fixed;color:#fff;text-align:center;padding:118px 24px}
.parallax-band .eyebrow{color:var(--gold)}
.parallax-band h2{color:#fff;font-size:35px;font-weight:300;max-width:860px;margin:8px auto 18px;line-height:1.42;text-shadow:0 2px 20px rgba(0,0,0,.55)}
.parallax-band .pb-sub{color:#e8e8e8;font-size:17px;font-weight:300;max-width:660px;margin:0 auto 32px}
.parallax-band .pb-inner{position:relative;z-index:1}
.parallax-band .sec-title{color:#fff}
.soft-band{background:#fff}
.block.on-cream{background:transparent}
@media(max-width:600px){.parallax-band{background-attachment:scroll;padding:74px 20px}.parallax-band h2{font-size:25px}}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.why-card{text-align:center;padding:0 8px}
.why-card h3{margin:0 0 12px;font-size:17px;font-weight:500;color:var(--gold-t);letter-spacing:.3px}
.why-card p{margin:0;color:#aeaeae;font-size:14px;line-height:1.85}
/* FAQ หน้าแรก — เส้นคั่นบางแบบ .check-list + หัวข้อทองแบบ .why-card (ภาษาดีไซน์ ban9chang เอง) */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 54px;max-width:1000px;margin:0 auto}
.faq-item{padding:22px 0;border-top:1px solid var(--line)}
.faq-item h3{margin:0 0 9px;font-size:16px;font-weight:500;color:var(--gold-t);letter-spacing:.3px;position:relative;padding-left:26px;line-height:1.6}
.faq-item h3:before{content:"?";position:absolute;left:2px;top:0;color:var(--gold);font-weight:400}
.faq-item p{margin:0;padding-left:26px;color:var(--muted);font-size:14px;line-height:1.9}
@media(max-width:760px){.faq-grid{grid-template-columns:1fr;gap:0}}
.check-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px}
.check-list li{padding:12px 0 12px 28px;border-bottom:1px solid var(--line);position:relative}
.check-list li:before{content:"—";position:absolute;left:0;color:var(--gold)}
.process{list-style:none;padding:0;margin:0}
.process li{display:flex;align-items:flex-start;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.process .step{background:var(--gold);color:#fff;width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:500;flex:0 0 30px;font-size:14px}
.breadcrumb{font-size:13px;color:var(--muted);margin:22px 0 4px;letter-spacing:.3px}
.breadcrumb a{color:var(--muted)}.breadcrumb strong{color:var(--ink)}
.cta-box{background:var(--dark);color:#fff;padding:70px 32px;text-align:center}
.cta-box h2{border:0;font-size:31px;font-weight:300;margin:0 0 14px;letter-spacing:.5px}
.cta-box>p{color:#bbb;margin:0 auto 26px;max-width:580px;line-height:1.9}
.quote-form{display:grid;gap:12px;max-width:480px;margin:24px auto 0;text-align:left}
.quote-form input,.quote-form select,.quote-form textarea{padding:13px 14px;border:1px solid #3a3a3a;background:#222;color:#fff;border-radius:2px;font-family:inherit;font-size:15px;font-weight:300}
.quote-form input::placeholder,.quote-form textarea::placeholder{color:#888}
.quote-form textarea{min-height:72px;resize:vertical}
.quote-form button{cursor:pointer;border:0}
.form-note{font-size:13px;color:var(--gold);margin:4px 0 0;min-height:18px;text-align:center}
.related{text-align:center;margin:34px 0}
.fab{position:fixed;right:20px;bottom:20px;z-index:50;display:flex;flex-direction:column;align-items:center;gap:11px}
.fab-btn{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:21px;text-decoration:none;box-shadow:0 3px 12px rgba(0,0,0,.28);opacity:0;transform:translateY(14px) scale(.4);pointer-events:none;transition:.22s}
.fab.open .fab-btn{opacity:1;transform:none;pointer-events:auto}
/* LINE = ช่องปิดการขายหลัก → โผล่ตลอด ไม่ต้องกด ＋ ก่อน (เดิมซ่อนหมดจนกว่าจะกด = เสียลูกค้าบนมือถือ) */
.fab-btn.fab-always{opacity:1;transform:none;pointer-events:auto;position:relative}
.fab-btn.fab-always::after{content:"แอด LINE";position:absolute;right:56px;top:50%;transform:translateY(-50%);
  background:rgba(20,26,28,.9);color:#fff;font-size:11px;font-weight:500;white-space:nowrap;
  padding:5px 10px;border-radius:999px;opacity:0;transition:.2s;pointer-events:none}
.fab-btn.fab-always:hover::after{opacity:1}
.fab.open .fab-btn.fab-always::after{opacity:0}
@media(max-width:600px){.fab-btn.fab-always::after{display:none}}
.fab-img{padding:0;overflow:hidden}
.fab-btn img{width:100%;height:100%;object-fit:cover;border-radius:50%;display:block}
.fab-ai{background:var(--gold)}.fab-ai svg{width:24px;height:24px}
.fab-toggle{width:58px;height:58px;border-radius:50%;border:0;background:var(--gold);color:#fff;font-size:26px;cursor:pointer;box-shadow:0 4px 16px rgba(0,0,0,.3);transition:.25s;line-height:1}
.fab.open .fab-toggle{transform:rotate(135deg)}
.footer{background:var(--dark);color:#999;padding:66px 32px 30px;border-top:2px solid var(--gold)}
.footer-grid{max-width:1140px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:42px}
.footer-grid h4{color:#fff;font-size:14px;margin:0 0 16px;font-weight:500;letter-spacing:1.5px;text-transform:uppercase}
.footer-grid p{margin:7px 0;font-size:14px;line-height:1.85;color:#999}
.footer-grid a{color:#c9b07a}
.footer-bottom{max-width:1140px;margin:42px auto 0;padding-top:22px;border-top:1px solid #2e2e2e;font-size:13px;color:#777;text-align:center;letter-spacing:.5px}
.viewer3d{max-width:980px;margin:0 auto;aspect-ratio:16/9;background:#0c0c0c}
.model-tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:22px}
.model-tabs .mtab{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.28);color:#eee;padding:9px 20px;border-radius:30px;cursor:pointer;font:inherit;font-size:14px;transition:.2s}
.model-tabs .mtab:hover{border-color:var(--gold);color:#fff}
.model-tabs .mtab.is-active{background:var(--gold);border-color:var(--gold);color:#15110a;font-weight:500}
/* ── พื้นหลัง blueprint แอนิเมชั่น (ส่วนบริการ) — การ์ดขาวลอยเป็นไส้ ── */
.blueprint-band{position:relative;background:radial-gradient(130% 130% at 50% 0,#12283f,#0a1420);overflow:hidden}
.blueprint-band .block{position:relative;z-index:2}
.blueprint-band .sec-title{color:#fff}
.bp-anim{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.bp-grid{position:absolute;inset:-60%;background-image:linear-gradient(rgba(120,180,255,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.10) 1px,transparent 1px);background-size:46px 46px;animation:bpPan 38s linear infinite}
.bp-grid2{background-image:linear-gradient(rgba(120,180,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,180,255,.06) 1px,transparent 1px);background-size:230px 230px;animation:bpPan 88s linear infinite reverse}
@keyframes bpPan{from{transform:translate(-46px,-46px)}to{transform:translate(0,0)}}
.bp-draw{position:absolute;left:50%;top:50%;width:min(1150px,94%);transform:translate(-50%,-50%);opacity:.42}
.bp-draw *{fill:none;stroke:#6cb0ff;stroke-width:2;vector-effect:non-scaling-stroke;stroke-dasharray:900;stroke-dashoffset:900;animation:bpDraw 9s ease-in-out infinite alternate}
.bp-draw .g2{stroke:#d9b978;animation-delay:1.4s}
.bp-draw .g3{animation-delay:2.8s}
@keyframes bpDraw{to{stroke-dashoffset:0}}
.bp-scan{position:absolute;left:0;right:0;height:200px;top:-200px;background:linear-gradient(180deg,transparent,rgba(108,176,255,.13),transparent);animation:bpScan 8s linear infinite}
@keyframes bpScan{to{top:100%}}
@media(prefers-reduced-motion:reduce){.bp-grid,.bp-grid2,.bp-draw *,.bp-scan{animation:none}.bp-draw *{stroke-dashoffset:0}}
.viewer3d iframe{width:100%;height:100%;border:0;display:block}
.center-cta{text-align:center;margin-top:22px}
.yt-carousel{display:flex;gap:16px;overflow-x:auto;padding:4px 2px 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.yt-carousel::-webkit-scrollbar{height:8px}
.yt-carousel::-webkit-scrollbar-thumb{background:var(--gold);border-radius:4px}
.yt-carousel::-webkit-scrollbar-track{background:rgba(0,0,0,.06)}
.yt-card{flex:0 0 340px;max-width:82vw;aspect-ratio:16/9;border:0;padding:0;border-radius:12px;background:#0c0c0c center/cover no-repeat;position:relative;cursor:pointer;scroll-snap-align:start;overflow:hidden;box-shadow:0 8px 22px rgba(0,0,0,.15);transition:transform .2s}
.yt-card:hover{transform:translateY(-4px)}
.yt-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.32))}
.yt-card .yt-play{position:absolute;left:50%;top:50%;width:62px;height:62px;transform:translate(-50%,-50%);border-radius:50%;background:rgba(214,28,28,.94);box-shadow:0 4px 16px rgba(0,0,0,.45);transition:.2s;z-index:2}
.yt-card:hover .yt-play{background:#d61c1c;transform:translate(-50%,-50%) scale(1.08)}
.yt-card .yt-play::after{content:"";position:absolute;left:54%;top:50%;transform:translate(-50%,-50%);border-left:19px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent}
.yt-card.playing::before{display:none}
.yt-card.playing .yt-play{display:none}
.yt-card iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.fb-embed{display:flex;justify-content:center}
.fb-embed iframe{width:500px;max-width:100%;height:560px;border:0;background:var(--soft)}
.social-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;max-width:980px;margin:0 auto}
.social-col{text-align:center}
.social-col h3{font-weight:400;font-size:16px;margin:0 0 18px;letter-spacing:2px;color:var(--muted)}
.social-col iframe{width:100%;height:440px;border:0;background:var(--soft);display:block}
.social-yt iframe{height:270px}
@media(max-width:760px){.social-grid{grid-template-columns:1fr;gap:42px}}
@media(max-width:960px){.svc-grid,.gallery,.why-grid{grid-template-columns:repeat(2,1fr)}.about{grid-template-columns:1fr;gap:30px}.about img{height:280px}.footer-grid{grid-template-columns:1fr;gap:28px}}
@media(max-width:600px){.hero h1{font-size:33px}.block{padding:58px 22px}.nav{padding:14px 20px}.nav-links{gap:16px;font-size:14px}.sec-title{font-size:27px}}

/* ── รีวิวลูกค้า: การ์ดหน้าแรก (#reviews) ───────────────────────────── */
.rv-avg{text-align:center;color:var(--muted);font-size:15px;margin:-14px 0 30px}
.rv-avg b{color:var(--ink);font-size:19px}
.rv-stars{color:#e0a92b;letter-spacing:2px;font-size:17px;line-height:1}
/* auto-fit = มี 2 รีวิวก็เต็มแถวสวย ไม่เหลือช่องว่างข้างขวา · มี 3+ ก็แถวละ 3 ตามเดิม */
.rv-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px;max-width:1140px;margin:0 auto}
.rv-card{margin:0;padding:26px 24px;border:1px solid var(--line);border-radius:14px;background:#fff;
  display:flex;flex-direction:column;gap:12px}
.rv-card blockquote{margin:0;font-size:15px;line-height:1.9;color:#333}
.rv-card blockquote::before{content:"\201C";color:var(--gold);font-size:30px;line-height:0;
  vertical-align:-8px;margin-right:3px}
.rv-card figcaption{margin-top:auto;font-size:14px;font-weight:500;color:var(--ink)}
.rv-card .rv-meta{display:block;font-weight:400;font-size:13px;color:var(--muted);margin-top:3px}

/* ── หน้าขอรีวิว /review (noindex · ส่งลิงก์ให้ลูกค้าหลังจบงาน) ────────── */
.rvq{max-width:640px;margin:0 auto;padding:120px 22px 80px}
.rvq h1{font-size:31px;font-weight:500;line-height:1.45;text-align:center;margin:0 0 16px}
.rvq-lead{text-align:center;color:#555;font-size:15px;line-height:1.9;margin:0 0 38px}
.rvq-chs{display:flex;flex-direction:column;gap:12px;margin-bottom:34px}
.rvq-ch{display:block;padding:17px 20px;border-radius:12px;text-decoration:none;border:1px solid var(--line);
  background:var(--soft);transition:transform .15s,box-shadow .15s}
.rvq-ch:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.08)}
.rvq-ch b{display:block;font-size:16px;font-weight:500;color:var(--ink);margin-bottom:3px}
.rvq-ch span{font-size:13.5px;color:var(--muted)}
.rvq-g{border-color:#e6d9b4;background:#fdfaf1}
.rvq-fb{border-color:#cddcf5;background:#f4f8fe}
.rvq-or{position:relative;text-align:center;margin:0 0 26px}
.rvq-or::before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--line)}
.rvq-or span{position:relative;background:#fff;padding:0 14px;color:var(--muted);font-size:13.5px}
.rvq-form{display:flex;flex-direction:column}
.rvq-l{font-size:14.5px;font-weight:500;color:var(--ink);margin:16px 0 7px}
.rvq-form input[type=text],.rvq-form textarea{width:100%;padding:13px 15px;border:1px solid #d9d9d9;
  border-radius:10px;font-family:inherit;font-size:15px;color:var(--ink);background:#fff}
.rvq-form textarea{resize:vertical;line-height:1.8}
.rvq-form input[type=text]:focus,.rvq-form textarea:focus{outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold)}
.rvq-stars{display:flex;gap:4px}
.rvq-star{background:none;border:0;cursor:pointer;font-size:34px;line-height:1;color:#d8d8d8;
  padding:2px 4px;min-width:44px;min-height:44px;transition:color .12s,transform .12s}
.rvq-star:hover{transform:scale(1.12)}
.rvq-star.on{color:#e0a92b}
.rvq-star:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:6px}
.rvq-consent{display:flex;gap:11px;align-items:flex-start;margin:22px 0 6px;padding:15px 16px;
  border:1px solid var(--line);border-radius:11px;background:var(--soft);cursor:pointer}
.rvq-consent input{margin-top:3px;width:19px;height:19px;flex:0 0 auto;accent-color:var(--gold-d);cursor:pointer}
.rvq-consent span{font-size:14px;line-height:1.75;color:#444}
.rvq-consent small{color:var(--muted);font-size:12.5px;line-height:1.7}
.rvq-submit{margin-top:20px;width:100%;justify-content:center;text-align:center}
.rvq-submit[disabled]{opacity:.6;cursor:default}
.rvq-msg{margin:12px 0 0;font-size:14px;text-align:center;min-height:1px}
.rvq-msg.is-err{color:#b3261e}
.rvq-msg a{color:var(--gold-t)}
.rvq-note{margin:18px 0 0;font-size:12.5px;color:var(--muted);text-align:center;line-height:1.8}
.rvq-note a{color:var(--gold-t)}
.rvq-help{margin:40px 0 0;padding-top:24px;border-top:1px solid var(--line);
  font-size:14px;color:var(--muted);text-align:center;line-height:1.9}
.rvq-help a{color:var(--gold-t)}
.rvq-done{text-align:center;padding:26px 0 6px}
.rvq-done-i{width:62px;height:62px;margin:0 auto 18px;border-radius:50%;background:var(--gold);
  color:#fff;font-size:30px;line-height:62px;text-align:center}
.rvq-done h2{font-size:25px;font-weight:500;margin:0 0 10px}
.rvq-done p{color:#555;font-size:15px;line-height:1.9;margin:0 0 20px}
@media(max-width:600px){.rvq{padding:104px 20px 66px}.rvq h1{font-size:26px}}