/* NBC Enervance · v2 โทนสีโลโก้ · ฟอนต์ Anuphan (SIL OFL · Cadson Demak) · มุมตัด 45° ตามรูปทรงโลโก้ */
@font-face{font-family:Anuphan;font-weight:400;font-display:swap;src:url(fonts/anuphan-thai-400-normal.woff2) format("woff2");unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:Anuphan;font-weight:400;font-display:swap;src:url(fonts/anuphan-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Anuphan;font-weight:600;font-display:swap;src:url(fonts/anuphan-thai-600-normal.woff2) format("woff2");unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:Anuphan;font-weight:600;font-display:swap;src:url(fonts/anuphan-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Anuphan;font-weight:700;font-display:swap;src:url(fonts/anuphan-thai-700-normal.woff2) format("woff2");unicode-range:U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:Anuphan;font-weight:700;font-display:swap;src:url(fonts/anuphan-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --pine:#123222;      /* เขียวเข้มเกือบดำ: ตัวอักษร พื้นหลังส่วนติดต่อ */
  --nbc:#3A9A1C;       /* เขียวเข้มของโลโก้ */
  --leaf:#8CC63F;      /* เขียวอ่อนของโลโก้ */
  --clad:#E8EDE9;      /* สีแผ่นอะลูมิเนียมหุ้มฉนวน */
  --steel:#5E6B66;     /* ข้อความรอง */
  --line:#CFD8D2;
  --white:#FFFFFF;
  --cut:22px;          /* ขนาดมุมตัด */
  --wrap:1180px;
  --pad:clamp(16px,4vw,32px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--white);color:var(--pine);font:400 17px/1.7 Anuphan,"Noto Sans Thai",Tahoma,sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{margin:0;line-height:1.25;font-weight:700;text-wrap:balance}
p{margin:0}
:focus-visible{outline:3px solid var(--leaf);outline-offset:3px}
.skip{position:absolute;left:-999px;top:8px;background:var(--pine);color:#fff;padding:8px 14px;z-index:100}
.skip:focus{left:8px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.ic{width:20px;height:20px;flex:none}
.cut{clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)))}
.cut-sm{clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%)}

/* ---------- ส่วนหัว ---------- */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-row{display:flex;align-items:center;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.brand img{width:34px;height:auto}
.brand span{display:flex;flex-direction:column;line-height:1.15}
.brand b{font-size:19px;letter-spacing:.01em}
.brand small{font-size:12.5px;color:var(--steel)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:8px 12px;text-decoration:none;font-weight:600;font-size:15.5px;border-radius:2px}
.nav a:hover{background:var(--clad)}
.nav .nav-call{display:inline-flex;align-items:center;gap:6px;background:var(--nbc);color:#fff;margin-left:6px}
.nav .nav-call:hover{background:var(--pine)}
.lang{display:inline-flex;align-items:center;gap:6px;padding:8px 10px;text-decoration:none;font-weight:600;font-size:14px;border:1px solid var(--line)}
.lang .ic{width:16px;height:16px}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;color:var(--pine);align-items:center;justify-content:center;cursor:pointer}
.menu-btn .ic-close{display:none}
.menu-open .menu-btn .ic-open{display:none}
.menu-open .menu-btn .ic-close{display:block}
@media (max-width:959px){
  .menu-btn{display:inline-flex}
  .nav{position:fixed;inset:68px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:8px var(--pad) 18px;box-shadow:0 18px 30px rgba(18,50,34,.12);transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .15s,transform .15s,visibility .15s}
  .menu-open .nav{opacity:1;transform:none;visibility:visible}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--clad);font-size:17px}
  .nav .nav-call{margin:14px 0 0;justify-content:center;padding:14px}
}

/* ---------- ภาพหลัก ---------- */
.hero{position:relative;background:var(--pine);color:#fff;overflow:hidden}
.hero-photo{position:absolute;inset:0}
.hero-photo img{width:100%;height:100%;object-fit:cover;object-position:60% 50%}
.hero-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,50,34,.9) 0%,rgba(18,50,34,.55) 45%,rgba(18,50,34,.1) 100%)}
.hero-grid{position:relative;display:flex;align-items:flex-end;min-height:min(78vh,640px);padding-top:56px;padding-bottom:40px}
.hero-panel{max-width:720px;background:rgba(18,50,34,.82);padding:clamp(24px,4vw,44px);border-left:6px solid var(--leaf)}
.hero h1{font-size:clamp(30px,4.4vw,52px);letter-spacing:-.01em}
.hero-panel p{margin-top:16px;font-size:clamp(16px,1.6vw,19px);color:#DCE7DF;max-width:46ch}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px 22px;font-weight:600;text-decoration:none;border:2px solid transparent}
.btn-leaf{background:var(--leaf);color:var(--pine)}
.btn-leaf:hover{background:#A4D65E}
.btn-line{border-color:rgba(255,255,255,.6);color:#fff}
.btn-line:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.hero-facts{position:relative;display:flex;flex-wrap:wrap;gap:10px 32px;padding-top:16px;padding-bottom:18px;border-top:1px solid rgba(255,255,255,.18);font-size:15px;color:#DCE7DF}
.hero-facts p{display:flex;align-items:center;gap:8px}
.hero-facts b{color:#fff}
.hero-facts .ic{color:var(--leaf)}

/* ---------- ส่วนเนื้อหา ---------- */
.sec{padding:clamp(56px,8vw,104px) 0}
.h2{font-size:clamp(28px,3.6vw,42px);position:relative;padding-left:22px}
.h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:8px;background:linear-gradient(var(--nbc),var(--leaf));clip-path:polygon(0 0,100% 6px,100% 100%,0 calc(100% - 6px))}
.sec-head{display:grid;gap:14px;max-width:760px;margin-bottom:36px}
.sec-head p,.big{font-size:clamp(17px,1.5vw,19px);color:var(--steel);max-width:62ch}
.big{margin-top:18px}

.about-grid{display:grid;gap:48px}
.vision{margin-top:30px;padding:22px 24px;background:var(--clad);border-left:6px solid var(--nbc)}
.vision h3,.mission h3{font-size:20px;margin-bottom:8px}
.mission ol{list-style:none;margin:14px 0 0;padding:0;counter-reset:m}
.mission li{counter-increment:m;position:relative;padding:14px 0 14px 54px;border-top:1px solid var(--line)}
.mission li:last-child{border-bottom:1px solid var(--line)}
.mission li::before{content:counter(m);position:absolute;left:0;top:12px;width:36px;height:36px;display:grid;place-items:center;font-weight:700;color:#fff;background:var(--nbc);clip-path:polygon(0 0,calc(100% - 9px) 0,100% 9px,100% 100%,0 100%)}
@media (min-width:900px){.about-grid{grid-template-columns:1.15fr 1fr;align-items:start}.mission{padding-top:72px}}

.services{background:var(--clad)}
.svc{list-style:none;margin:0;padding:0;display:grid;gap:22px}
.svc li{display:grid;grid-template-columns:minmax(120px,40%) 1fr;gap:18px;align-items:center;background:#fff;padding:12px;border-bottom:4px solid var(--leaf)}
.svc img{width:100%;aspect-ratio:4/3;object-fit:cover}
.svc h3{font-size:clamp(18px,1.8vw,21px)}
.svc p{margin-top:6px;color:var(--steel);font-size:16px}
@media (min-width:760px){.svc{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.svc li{grid-template-columns:1fr}}

.pillars{list-style:none;margin:36px 0 0;padding:0;display:grid;gap:28px}
.pillars li{padding-top:20px;border-top:3px solid var(--pine)}
.pill-ic{display:inline-grid;place-items:center;width:52px;height:52px;background:var(--clad);color:var(--nbc);margin-bottom:14px}
.pill-ic .ic{width:28px;height:28px}
.pillars h3{font-size:20px}
.pillars p{margin-top:8px;color:var(--steel)}
@media (min-width:760px){.pillars{grid-template-columns:repeat(3,1fr)}}
.iso{margin-top:56px;display:grid;gap:24px;align-items:center;background:var(--pine);color:#fff;padding:clamp(22px,4vw,40px)}
.iso-img{display:block;background:#fff;padding:8px;max-width:220px}
.iso h3{font-size:clamp(22px,2.4vw,28px)}
.iso p{margin:10px 0 20px;color:#DCE7DF;max-width:56ch}
@media (min-width:700px){.iso{grid-template-columns:220px 1fr}}

.gallery{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.gallery a{display:block;overflow:hidden;background:var(--clad)}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s}
.gallery a:hover img{transform:scale(1.04)}
@media (min-width:700px){.gallery{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1000px){.gallery{grid-template-columns:repeat(4,1fr)}.gallery li:first-child{grid-column:span 2;grid-row:span 2}.gallery li:first-child a{height:100%}.gallery li:first-child img{height:100%;aspect-ratio:auto}}
.clients{margin-top:56px;max-width:760px}
.clients h3{font-size:22px}
.clients p{margin-top:10px;color:var(--steel)}

.contact{background:var(--pine);color:#fff}
.contact .h2::before{background:linear-gradient(var(--leaf),var(--nbc))}
.contact .big{color:#C9D8CD}
.contact-grid{display:grid;gap:40px}
.contact-big{display:flex;align-items:center;gap:14px;margin-top:22px;text-decoration:none;font-size:clamp(20px,2.4vw,26px);font-weight:600;word-break:break-word}
.contact-big .ic{width:44px;height:44px;padding:10px;background:var(--leaf);color:var(--pine)}
.contact-big small{display:block;font-size:14px;font-weight:400;color:#A9BEAF}
.contact-big:hover span{text-decoration:underline}
.hours{display:flex;gap:12px;margin-top:26px;color:#C9D8CD}
.hours .ic{color:var(--leaf);margin-top:4px}
.offices{list-style:none;margin:0;padding:0;display:grid;gap:16px;align-content:start}
.offices li{background:rgba(255,255,255,.07);padding:22px 24px;border-left:4px solid var(--leaf)}
.offices h3{font-size:19px}
.offices p{margin:6px 0 14px;color:#DCE7DF}
.offices a{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--leaf);text-decoration:none}
.offices a:hover{text-decoration:underline}
@media (min-width:900px){.contact-grid{grid-template-columns:1.1fr 1fr}.offices{padding-top:70px}}

.foot{background:#0C2117;color:#A9BEAF;font-size:14px}
.foot-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:24px;padding-bottom:24px}
.foot p:first-child{display:flex;gap:12px;align-items:center}
.foot b{color:#fff}

/* ---------- ดูรูปขนาดใหญ่ ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(8,20,13,.94);display:flex;align-items:center;justify-content:center;padding:56px 12px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:min(1200px,100%);max-height:100%;object-fit:contain}
.lb-btn{position:absolute;width:48px;height:48px;border:0;background:rgba(255,255,255,.12);color:#fff;display:grid;place-items:center;cursor:pointer}
.lb-btn:hover{background:var(--nbc)}
.lb-close{top:10px;right:10px}
.lb-prev{left:10px;top:50%;transform:translateY(-50%)}
.lb-next{right:10px;top:50%;transform:translateY(-50%)}
.lb-count{position:absolute;bottom:14px;left:0;right:0;text-align:center;color:#C9D8CD;font-size:14px}
.lb-open,.lb-open body{overflow:hidden}
.nw{display:inline-block}

/* ---------- (v3) สไลด์ภาพหลัก · โครงจาก v1 · หน้าตา v2 ---------- */
.hero-slider .slider{position:relative;height:clamp(460px,72vh,640px);overflow:hidden}
.hero-slider .slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .8s,visibility .8s}
.hero-slider .slide.is-active{opacity:1;visibility:visible}
.hero-slider .slide>img{width:100%;height:100%;object-fit:cover;object-position:60% 50%}
.hero-slider .slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,50,34,.85) 0%,rgba(18,50,34,.45) 50%,rgba(18,50,34,.05) 100%)}
.hero-slider .slide-cap{position:absolute;left:0;right:0;bottom:64px;z-index:1}
.hero-slider .hero-panel{max-width:620px}
.hero-slider h1,.hero-slider .h1{font-size:clamp(28px,4vw,46px);letter-spacing:-.01em}
.sl-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:48px;height:48px;border:0;background:rgba(18,50,34,.6);color:#fff;display:grid;place-items:center;cursor:pointer;clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px))}
.sl-arrow:hover{background:var(--nbc)}
.sl-prev{left:14px}.sl-next{right:14px}
.sl-dots{position:absolute;left:0;right:0;bottom:22px;z-index:2;display:flex;justify-content:center;gap:10px}
.sl-dots button{width:28px;height:6px;border:0;padding:0;background:rgba(255,255,255,.45);cursor:pointer}
.sl-dots button[aria-current="true"]{background:var(--leaf)}
.hero-slider .hero-facts{border-top:0;background:var(--pine)}
@media (max-width:700px){.sl-arrow{display:none}.hero-slider .slide-cap{bottom:48px}.hero-slider .slider{height:clamp(520px,82vh,640px)}}