/* =============================================================
   D-OP PROTECTION — Premium Paint Protection Film
   เว็บไซต์เต็มความกว้าง · ข้อความเป็น HTML คมทุกขนาดจอ
   รูปสินค้า/ไอคอน/โลโก้ ตัดพื้นหลังโปร่งใสจากไฟล์ดีไซน์ต้นฉบับ
   ============================================================= */
:root{
  --gold-50:#FFFBEA;
  --gold-100:#FDF3C6;
  --gold-200:#F6E2A0;
  --gold-300:#EACB72;
  --gold-400:#DDB04A;
  --gold-500:#C9962C;
  --gold-600:#AE7C1A;
  --gold-700:#8C6110;

  --ink:#141414;
  --ink-2:#2A2A2A;
  --muted:#2F2F2F;
  --muted-2:#3D3D3D;

  --silver-0:#FBFBFA;
  --silver-1:#EFEFED;
  --silver-2:#DEDFDD;
  --silver-3:#CDCFCF;

  --dark-0:#0C0B0A;
  --dark-1:#141312;
  --dark-2:#201F1E;

  --gold-text:linear-gradient(180deg,#FFF6C2 0%,#F5D264 24%,#DFAA2C 50%,#A9740A 72%,#FBE79C 100%);
  --gold-bar:linear-gradient(180deg,#FFF3B4 0%,#F2CB63 20%,#E0A72C 48%,#A97407 74%,#F2D778 100%);
  --gold-btn:linear-gradient(180deg,#FFF1AE 0%,#F0C85C 18%,#DCA429 50%,#A87206 82%,#EFD16B 100%);

  --wrap:1240px;
  --ease:cubic-bezier(.22,.8,.28,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:110px}
body{
  margin:0;background:#989C9D;color:var(--ink);
  font-family:"Prompt","Kanit","Noto Sans Thai",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-weight:300;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.gold-text{
  background:var(--gold-text);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  filter:drop-shadow(0 1px 1px rgba(80,54,0,.35));
}

/* ====================== SCROLL REVEAL ======================== */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.rv-l{opacity:0;transform:translateX(-30px)}
.rv-l.in{opacity:1;transform:none}
.rv-r{opacity:0;transform:translateX(34px)}
.rv-r.in{opacity:1;transform:none}
.rv-l,.rv-r{transition:opacity .85s var(--ease),transform .85s var(--ease)}

/* =========================== HEADER ========================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:linear-gradient(180deg,rgba(184,187,187,.96),rgba(160,164,165,.94));
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:2px solid rgba(201,150,44,.55);
  transition:height .35s var(--ease),box-shadow .35s var(--ease),background .35s var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(201,150,44,.85),transparent);
}
.header-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 32px;height:96px;
  display:flex;align-items:center;gap:26px;transition:height .35s var(--ease);
}
.site-header.small{box-shadow:0 8px 30px rgba(0,0,0,.13);background:linear-gradient(180deg,rgba(180,183,183,.98),rgba(156,160,161,.97))}
.site-header.small .header-inner{height:70px}
.brand{display:block;flex:none}
.brand img{height:74px;width:auto;transition:height .35s var(--ease)}
.site-header.small .brand img{height:54px}

.main-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;font-weight:400;color:#3B3B3B;padding:8px 0;white-space:nowrap;
  transition:color .25s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:2px;height:2.5px;width:100%;border-radius:2px;
  background:var(--gold-bar);transform:scaleX(0);transform-origin:right;
  transition:transform .35s var(--ease);
}
.main-nav a:hover{color:var(--gold-700)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1);transform-origin:left}
.main-nav a.is-active{color:var(--ink);font-weight:500}

.header-tools{display:flex;align-items:center;gap:14px;flex:none}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;border:0;border-radius:50%;
  background:transparent;color:#242424;transition:background .25s,color .25s,transform .25s var(--ease);
}
.icon-btn:hover{background:rgba(201,150,44,.14);color:var(--gold-700);transform:translateY(-1px)}
.burger{display:none}
.burger span{display:block;width:22px;height:2.2px;background:#242424;border-radius:2px;margin:4.5px 0;transition:transform .3s var(--ease),opacity .25s}
.burger.open span:nth-child(1){transform:translateY(6.7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.7px) rotate(-45deg)}

.mobile-nav{
  position:fixed;left:0;right:0;top:0;z-index:70;padding:104px 26px 26px;
  background:linear-gradient(180deg,rgba(179,182,182,.99),rgba(155,159,160,.99));
  backdrop-filter:blur(14px);
  transform:translateY(-102%);transition:transform .45s var(--ease);
  box-shadow:0 20px 40px rgba(0,0,0,.16);
}
.mobile-nav.open{transform:none}
.mnav-links a{
  display:block;padding:15px 6px;font-size:17px;border-bottom:1px solid rgba(0,0,0,.07);
  transition:color .2s,padding-left .25s var(--ease);
}
.mnav-links a:hover{color:var(--gold-700);padding-left:14px}

/* ============================ HERO =========================== */
.hero{
  position:relative;overflow:hidden;padding:150px 0 70px;
  background:
    radial-gradient(56% 60% at 68% 40%, rgba(255,252,238,.7) 0%, rgba(255,250,230,.22) 42%, rgba(255,255,255,0) 72%),
    url("img/bg-silver.svg") center/100% 100% no-repeat,
    radial-gradient(96% 86% at 70% 32%, #B2B4B2 0%, #A2A5A4 30%, #8E9293 62%, #74797A 100%);
}
.hero-facets{display:none}
.rays{position:absolute;inset:-10% -6%;pointer-events:none;z-index:1}
.rays path{animation:rayPulse 6s ease-in-out infinite}
.rays path:nth-child(2){animation-delay:.9s}
.rays path:nth-child(3){animation-delay:1.8s}
.rays path:nth-child(4){animation-delay:2.7s}
.rays path:nth-child(5){animation-delay:3.6s}
@keyframes rayPulse{0%,100%{opacity:.35}50%{opacity:1}}

.hero-grid{position:relative;z-index:3;display:grid;grid-template-columns:minmax(0,440px) 1fr;gap:24px;align-items:center}
.eyebrow{
  font-size:13px;letter-spacing:4px;font-weight:500;color:#2C2C2C;text-transform:uppercase;margin-bottom:16px;
}
.hero h1{
  font-family:"Kanit","Prompt",sans-serif;font-weight:600;
  font-size:clamp(30px,3.4vw,48px);line-height:1.28;letter-spacing:-.3px;color:#131313;
}
.hero h1 .l2{
  display:block;background:var(--gold-text);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  filter:drop-shadow(0 2px 1px rgba(90,60,0,.35)) drop-shadow(0 0 18px rgba(240,200,90,.45));
}
.hero .lead{margin-top:20px;font-size:clamp(15px,1.15vw,17.5px);line-height:1.85;color:#2B2B2B;max-width:400px}

.btn{
  position:relative;overflow:hidden;display:inline-flex;align-items:center;gap:16px;
  margin-top:32px;padding:14px 14px 14px 34px;border:0;border-radius:999px;
  background:var(--gold-btn);color:#33230A;font-weight:500;font-size:17px;
  box-shadow:0 10px 30px rgba(198,146,20,.55), 0 0 0 1px rgba(255,236,160,.6) inset, inset 0 1px 0 rgba(255,255,255,.8);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn:hover{transform:translateY(-3px);box-shadow:0 20px 44px rgba(198,146,20,.7), 0 0 0 1px rgba(255,240,180,.75) inset, inset 0 1px 0 rgba(255,255,255,.9)}
.btn::before{
  content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.75),transparent);
  transform:skewX(-20deg);animation:shine 3.6s var(--ease) infinite;
}
@keyframes shine{0%{left:-70%}55%,100%{left:130%}}
.btn .arw{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;flex:none;
  background:linear-gradient(180deg,#FFF9DE,#E6C66C);color:#3A2905;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.8),0 2px 8px rgba(120,85,10,.4);
  transition:transform .3s var(--ease);
}
.btn:hover .arw{transform:translateX(4px)}
.btn.dark{background:linear-gradient(180deg,#2C2B29,#131211);color:var(--gold-200);box-shadow:0 10px 26px rgba(0,0,0,.35)}
.btn.dark .arw{background:var(--gold-btn);color:#3A2905}

.hero-visual{position:relative;z-index:3;margin-right:-3vw;padding-bottom:20%}
.hero-visual::before{
  content:"";position:absolute;left:6%;right:2%;top:8%;bottom:6%;z-index:0;
  background:radial-gradient(closest-side, rgba(255,247,214,.85), rgba(255,240,180,.25) 55%, rgba(255,255,255,0) 78%);
  filter:blur(6px);
}
.hv-car{position:relative;z-index:2;width:100%;
  filter:drop-shadow(0 26px 34px rgba(0,0,0,.38)) drop-shadow(0 0 40px rgba(255,226,140,.35));
  animation:float 7s ease-in-out infinite}
.hv-box{position:absolute;z-index:3;left:5%;bottom:0;width:88%;
  filter:drop-shadow(0 22px 30px rgba(0,0,0,.42)) drop-shadow(0 0 26px rgba(255,226,140,.4));
  animation:float 7s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-13px)}}

.usa-badge{
  position:absolute;top:118px;right:max(32px,calc((100vw - var(--wrap))/2 + 32px));z-index:5;
  text-align:right;line-height:1;
}
.usa-badge .u1{font-size:12px;letter-spacing:2.6px;font-weight:500;color:#242424}
.usa-badge .u2{
  display:flex;align-items:center;gap:10px;justify-content:flex-end;margin:6px 0 6px;
  font-family:"Kanit",sans-serif;font-weight:700;font-size:44px;color:#141414;letter-spacing:1px;
}
.usa-badge .u3{font-size:11.5px;letter-spacing:2.4px;font-weight:500;color:#242424}
.flag{width:54px;height:31px;box-shadow:0 2px 10px rgba(0,0,0,.18)}

/* ======================= SECTION HEADS ======================= */
.head{display:flex;gap:20px;align-items:flex-start}
.head .bar{
  width:7px;border-radius:5px;background:var(--gold-bar);align-self:stretch;min-height:86px;
  box-shadow:0 3px 12px rgba(176,131,31,.45);
}
.head h2{font-family:"Kanit","Prompt",sans-serif;font-weight:600;font-size:clamp(24px,2.3vw,33px);line-height:1.32;color:#131313}
.head .sub{margin-top:10px;font-size:13.5px;letter-spacing:5px;font-weight:400;color:#333333}

/* ========================= WHY CHOOSE ======================== */
.why{
  position:relative;overflow:hidden;padding:76px 0;
  background:
    url("img/bg-silver.svg") right center/150% 100% no-repeat,
    linear-gradient(180deg,#9CA0A3 0%,#8A8F93 50%,#969B9E 100%);
  border-top:1px solid rgba(255,255,255,.45);border-bottom:1px solid rgba(0,0,0,.07);
}
.why::before,.manu::before{
  content:none;position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(118deg,rgba(255,255,255,.6) 0 11%,rgba(0,0,0,0) 11% 19%,
      rgba(0,0,0,.05) 19% 24%,rgba(0,0,0,0) 24% 41%,rgba(255,255,255,.45) 41% 46%,rgba(0,0,0,0) 46% 100%),
    linear-gradient(-118deg,rgba(0,0,0,.045) 0 8%,rgba(0,0,0,0) 8% 21%,
      rgba(255,255,255,.4) 21% 26%,rgba(0,0,0,0) 26% 100%);
}
.why-grid{position:relative;z-index:2;display:grid;grid-template-columns:300px 1fr;gap:40px;align-items:center}
.features{display:grid;grid-template-columns:repeat(5,1fr)}
.feature{position:relative;text-align:center;padding:10px 12px;border-radius:14px;transition:transform .35s var(--ease),background .35s}
.feature+.feature::before{
  content:"";position:absolute;left:0;top:12%;bottom:12%;width:1px;
  background:linear-gradient(180deg,rgba(201,150,44,0),rgba(201,150,44,.6),rgba(201,150,44,0));
}
.feature:hover{transform:translateY(-8px);background:rgba(255,255,255,.34)}
.feature img{width:86px;margin:0 auto 14px;transition:transform .4s var(--ease),filter .4s}
.feature:hover img{transform:scale(1.1) rotate(-4deg);filter:drop-shadow(0 8px 18px rgba(176,131,31,.5))}
.feature h3{font-family:"Kanit",sans-serif;font-size:18px;font-weight:600;color:#131313;margin-bottom:7px}
.feature p{font-size:13.5px;line-height:1.65;color:#3A3A3A}

/* ======================== MANUFACTURER ======================= */
.manu{
  position:relative;overflow:hidden;padding:74px 0;
  background:
    url("img/bg-silver.svg") left center/130% 100% no-repeat,
    linear-gradient(180deg,#A3A7AB 0%,#91969B 58%,#878C91 100%);
}
.manu-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,430px) 1fr;gap:44px;align-items:start}
.manu .body{margin-top:24px;font-size:16px;line-height:1.95;color:var(--muted);max-width:410px}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);margin:30px 0 6px;max-width:430px}
.pillar{position:relative;text-align:center;padding:6px 4px;border-radius:12px;transition:transform .35s var(--ease)}
.pillar+.pillar::before{
  content:"";position:absolute;left:0;top:10%;bottom:10%;width:1px;
  background:linear-gradient(180deg,rgba(201,150,44,0),rgba(201,150,44,.5),rgba(201,150,44,0));
}
.pillar:hover{transform:translateY(-6px)}
.pillar img{width:66px;margin:0 auto 10px;transition:transform .4s var(--ease)}
.pillar:hover img{transform:scale(1.12)}
.pillar span{display:block;font-size:12.5px;line-height:1.6;color:#2E2E2E}

.collage{display:grid;grid-template-columns:1.85fr 1fr;gap:14px;align-items:start}
.collage-col{display:grid;grid-template-rows:repeat(3,1fr);gap:14px}
.shot{
  position:relative;overflow:hidden;border-radius:10px;background:#d8d9d8;
  box-shadow:0 14px 34px rgba(0,0,0,.18);
}
.shot::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);
  background:linear-gradient(120deg,rgba(255,247,214,.22),transparent 42%);
  opacity:0;transition:opacity .4s;
}
.shot:hover::after{opacity:1}
.shot-main{aspect-ratio:4/3}
.collage-col .shot{aspect-ratio:3/2}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.shot:hover img{transform:scale(1.07)}

/* =========================== BANNER ========================== */
.banner{
  position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center;
  background:var(--dark-1);
}
.banner-bg{
  position:absolute;inset:0;z-index:1;
  background:url("img/banner-car.jpg") right center/cover no-repeat;
  transform:scale(1.06);transition:transform 1.6s var(--ease);
}
.banner.in .banner-bg{transform:scale(1)}
.banner-veil{
  position:absolute;inset:0;z-index:2;
  background:linear-gradient(95deg,rgba(8,8,7,.93) 0%,rgba(10,10,9,.82) 30%,rgba(12,12,11,.5) 50%,rgba(12,12,11,.14) 68%,transparent 84%);
}
.banner-rays{position:absolute;inset:0;z-index:3;pointer-events:none;
  background:url("img/bg-rays-dark.svg") left center/62% 100% no-repeat;opacity:.4}
.banner .wrap{position:relative;z-index:4}
.banner-text{max-width:620px;padding:66px 0}
.banner-text h2{
  font-family:"Kanit","Prompt",sans-serif;font-weight:700;letter-spacing:-.5px;
  font-size:clamp(34px,4.6vw,62px);line-height:1.04;
  background:var(--gold-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 4px 16px rgba(0,0,0,.55));
}
.banner-text h2 em{font-style:italic;font-weight:600}
.banner-text .b-sub{margin-top:12px;font-size:clamp(11px,1vw,14.5px);letter-spacing:5.6px;color:#EDE5D0}
.banner-text .b-line{margin-top:24px;font-size:clamp(15px,1.35vw,20px);line-height:1.72;color:#F2F2F0}
.banner-text .btn{margin-top:34px}

/* =========================== FOOTER ========================== */
.site-footer{background:var(--dark-0);color:#B4B4B2;padding:56px 0 30px;border-top:1px solid rgba(201,150,44,.35)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:38px}
.foot-brand img{height:76px;width:auto;margin-bottom:18px}
.foot-brand p{font-size:14px;line-height:1.9;color:#8E8E8C;max-width:330px}
.foot-col h4{font-family:"Kanit",sans-serif;font-size:16px;font-weight:500;color:var(--gold-200);margin-bottom:16px}
.foot-col a,.foot-col li{display:block;font-size:14px;line-height:2.1;color:#A6A6A4;transition:color .2s,padding-left .25s var(--ease)}
.foot-col a:hover{color:var(--gold-300);padding-left:6px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:#6F6F6D;
}

/* ======================== BACK TO TOP ======================== */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;width:48px;height:48px;border:0;border-radius:50%;
  background:var(--gold-btn);color:#3A2905;display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(176,131,31,.45);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .35s,transform .35s var(--ease),visibility .35s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-4px)}

/* ========================= RESPONSIVE ======================== */
@media (max-width:1180px){
  .main-nav{gap:20px}
  .main-nav a{font-size:14.5px}
  .hero{padding-top:140px}
  .hero-grid{grid-template-columns:minmax(0,390px) 1fr}
  .usa-badge .u2{font-size:36px}
  .why-grid{grid-template-columns:260px 1fr;gap:28px}
  .feature img{width:74px}
}
@media (max-width:1060px){
  .main-nav{gap:15px}
  .main-nav a{font-size:13.5px}
  .header-inner{gap:16px}
  .brand img{height:64px}
}
@media (max-width:960px){
  .main-nav{display:none}
  .burger{display:grid}
  .hero{padding:118px 0 56px;text-align:center}
  .hero-grid{grid-template-columns:1fr;gap:8px}
  .hero .lead{margin-left:auto;margin-right:auto}
  .hero-visual{margin:18px -4vw 0;padding-bottom:22%}
  .usa-badge{position:static;text-align:center;margin:0 auto 22px}
  .usa-badge .u2{justify-content:center;font-size:34px}
  .head{justify-content:center;text-align:left}
  .why-grid{grid-template-columns:1fr;gap:34px}
  .features{grid-template-columns:repeat(3,1fr);gap:28px 0}
  .feature+.feature::before{display:none}
  .manu-grid{grid-template-columns:1fr;gap:34px}
  .manu .body,.pillars{max-width:none}
  .banner{min-height:340px}
  .banner-veil{background:linear-gradient(95deg,#0C0B0A 0%,rgba(12,11,10,.95) 40%,rgba(16,15,14,.6) 68%,rgba(16,15,14,.35) 100%)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:620px){
  .wrap{padding:0 20px}
  .header-inner{padding:0 20px;height:76px}
  .brand img{height:56px}
  .site-header.small .brand img{height:48px}
  .features{grid-template-columns:repeat(2,1fr)}
  .feature img{width:70px}
  .pillars{grid-template-columns:repeat(2,1fr);gap:22px 0}
  .pillar+.pillar::before{display:none}
  .collage{grid-template-columns:1fr}
  .collage-col{grid-template-rows:none;grid-template-columns:repeat(3,1fr)}
  .banner-text{padding:48px 0}
  .foot-grid{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important}
  .rv,.rv-l,.rv-r{opacity:1;transform:none}
}

/* ป้ายทองบนภาพโรงงาน */
.shot-main{position:relative}
.qtag{
  position:absolute;right:0;bottom:0;z-index:4;display:flex;align-items:center;gap:13px;
  padding:13px 22px 13px 30px;
  background:linear-gradient(100deg,rgba(14,13,12,0) 0%,rgba(14,13,12,.85) 18%,rgba(14,13,12,.95) 100%);
  border-top:1px solid rgba(201,150,44,.5);
}
.qtag svg{color:var(--gold-300);flex:none}
.qtag b{display:block;font-family:"Kanit",sans-serif;font-weight:600;font-size:17px;
  background:var(--gold-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.qtag small{display:block;font-size:12px;color:#E2E0DA;margin-top:2px}
@media (max-width:960px){.qtag{padding:11px 16px 11px 20px;gap:10px}.qtag b{font-size:15px}.qtag small{font-size:11px}}