/* ==========================================================
   อริยธนาโชต — Stylesheet
   ส่วนที่ 1: Base layout   ส่วนที่ 2: Theme (navy & gold)
   สีหลักแก้ได้ที่ :root ในส่วนที่ 2
   ========================================================== */

/* ---------- 1. BASE ---------- */
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans Thai","DM Sans",sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(1160px,calc(100% - 44px));margin:auto}
.topbar{background:var(--green);color:#e7f1e9;font-size:12px}.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding:9px 0}
.nav{height:80px;background:#fff;position:sticky;top:0;z-index:10;border-bottom:1px solid #edf0eb}.nav .wrap{height:100%;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--green);line-height:1.25}.brandmark{width:42px;height:42px;border-radius:13px;background:var(--green);color:var(--lime);display:grid;place-items:center;font-family:"DM Sans";font-weight:700;font-size:20px;transform:rotate(-4deg)}.brand small{display:block;color:#7c8d86;font-size:10px;font-weight:500;letter-spacing:.07em;margin-top:3px}
.links{display:flex;align-items:center;gap:29px;font-size:13px;color:#455954}.links a:hover{color:var(--green2)}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:7px;padding:12px 20px;background:var(--lime);color:var(--green);font-weight:700;font-size:13px;border:0;cursor:pointer;transition:.2s}.nav-cta:hover,.btn:hover{transform:translateY(-2px);box-shadow:0 9px 22px #c9df8066}
.menu{display:none;background:transparent;border:0;color:var(--green);font-size:24px}
.hero{background:var(--green);color:#fff;overflow:hidden;position:relative}.hero:after{content:"";position:absolute;width:520px;height:520px;border:1px solid #ffffff19;border-radius:50%;right:-100px;top:-185px;box-shadow:0 0 0 45px #ffffff08,0 0 0 100px #ffffff05}.hero .wrap{min-height:545px;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:40px;position:relative;z-index:1;padding:63px 0}
.eyebrow{display:flex;align-items:center;gap:9px;text-transform:uppercase;font:700 11px "DM Sans";letter-spacing:.16em;color:var(--lime)}.eyebrow:before{content:"";width:25px;height:2px;background:var(--gold)}
h1{font-size:clamp(38px,5vw,61px);line-height:1.2;letter-spacing:-.04em;margin:20px 0 18px;max-width:650px}h1 .accent{color:var(--lime)}
.hero p{max-width:560px;color:#d2e0d8;font-size:16px;margin:0 0 29px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn-dark{background:transparent;border:1px solid #ffffff70;color:#fff}
.hero-note{display:flex;gap:20px;margin-top:36px;color:#b8cec2;font-size:11px}.hero-note span{display:flex;align-items:center;gap:7px}.hero-note i{width:6px;height:6px;border-radius:50%;background:var(--lime)}
.hero-visual{height:380px;border-radius:18px;position:relative;overflow:hidden;background:linear-gradient(140deg,#c5d8c7,#719487 54%,#254f49);box-shadow:0 24px 60px #061d1a66}.hero-visual img{width:100%;height:100%;object-fit:cover;mix-blend-mode:multiply;opacity:.65;filter:saturate(.72)}
.visual-label{position:absolute;left:22px;right:22px;bottom:22px;padding:17px 20px;background:#fffef0ee;color:var(--green);border-radius:10px;display:flex;align-items:center;justify-content:space-between}.visual-label strong{font-size:14px}.visual-label small{display:block;color:#677b72;font-size:11px}
.round-icon{width:40px;height:40px;border-radius:50%;background:var(--lime);display:grid;place-items:center;font-size:18px}
.trust{background:#fff;border-bottom:1px solid var(--line)}.trust .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:20px 0}.trust strong{font-size:12px;color:#73827c;font-weight:500}.trust-items{display:flex;gap:28px;flex-wrap:wrap;color:#34534b;font:700 12px "DM Sans",sans-serif}.trust-items span:before{content:"✳";color:var(--green2);margin-right:7px}
.section{padding:88px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}.kicker{font:700 10px "DM Sans";letter-spacing:.15em;text-transform:uppercase;color:var(--green2)}
h2{font-size:clamp(27px,3.4vw,39px);line-height:1.25;letter-spacing:-.025em;color:var(--green);margin:9px 0 0}.section-head p{max-width:430px;margin:0;color:var(--muted);font-size:13px}
.catalog-tools{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{border:1px solid var(--line);background:#fff;color:#5a6a65;border-radius:30px;padding:8px 14px;font-size:11px;cursor:pointer}.filter.active,.filter:hover{background:var(--green);border-color:var(--green);color:#fff}.count{color:#85928c;font:12px "DM Sans"}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.course{background:#fff;border:1px solid var(--line);border-radius:11px;overflow:hidden;transition:.25s}.course:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.course-image{height:172px;position:relative;background:#d9e4d9;overflow:hidden}.course-image img{width:100%;height:100%;object-fit:cover;display:block;transition:.4s}.course:hover .course-image img{transform:scale(1.04)}
.tag{position:absolute;left:14px;top:14px;background:#f7f8f3ee;color:var(--green);padding:5px 10px;border-radius:4px;font-size:10px;font-weight:700}
.course-body{padding:18px}.course-meta{font:600 10px "DM Sans";letter-spacing:.07em;color:#84928c;text-transform:uppercase}.course h3{font-size:16px;line-height:1.45;color:var(--green);margin:9px 0 8px}.course p{color:var(--muted);font-size:11px;min-height:43px;margin:0 0 16px}
.course-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf0eb;padding-top:13px}.course-foot span{font-size:10px;color:#71817b}.text-link{font-size:11px;font-weight:700;color:var(--green2)}.text-link b{font-size:16px;margin-left:4px}
.schedule{background:#e9f0e8}.schedule-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:50px;align-items:start}.schedule-intro p{color:var(--muted);font-size:13px;margin:16px 0 23px}.schedule-list{background:#fff;border-radius:11px;padding:6px 24px}
.schedule-row{display:grid;grid-template-columns:70px 1fr auto;gap:18px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line)}.schedule-row:last-child{border:0}.date{background:var(--mint);border-radius:7px;text-align:center;padding:7px 4px;color:var(--green);font:700 10px "DM Sans"}.date b{display:block;font-size:20px;line-height:1.3}.schedule-row strong{font-size:13px;color:var(--green)}.schedule-row small{display:block;font-size:10px;color:#778780;margin-top:3px}.status{font-size:10px;color:#58755e;background:#e9f2e9;padding:5px 9px;border-radius:20px;white-space:nowrap}
.services{background:var(--paper)}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.service{border-top:2px solid var(--green2);background:#fff;padding:22px 19px 24px;min-height:206px}.service-no{font:700 10px "DM Sans";color:#92a39b}.service-icon{font-size:24px;margin:16px 0 6px}.service h3{margin:0 0 7px;font-size:14px;color:var(--green)}.service p{margin:0;color:var(--muted);font-size:11px}
.feature{background:#fff}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.feature-photo{height:400px;border-radius:12px;overflow:hidden;position:relative;background:#c6d6ce}.feature-photo img{width:100%;height:100%;object-fit:cover}.feature-photo:after{content:"";position:absolute;inset:auto 18px 18px;height:78px;border-radius:8px;background:#f7f8f3ee}.photo-caption{position:absolute;bottom:29px;left:34px;z-index:1;color:var(--green);font-size:12px;font-weight:700}
.feature-content p{color:var(--muted);font-size:13px}.steps{margin-top:24px}.step{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}.step-num{flex:0 0 27px;height:27px;border-radius:50%;display:grid;place-items:center;background:var(--mint);color:var(--green);font:700 11px "DM Sans"}.step strong{font-size:12px;color:var(--green)}.step small{display:block;font-size:10px;color:var(--muted);margin-top:3px}
.cta{background:var(--green);color:#fff;padding:60px 0}.cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{color:#fff;margin:0;font-size:30px}.cta p{margin:7px 0 0;color:#cadbd1;font-size:12px}.cta .btn{white-space:nowrap}
.about{padding:76px 0}.about .wrap{display:grid;grid-template-columns:.72fr 1.28fr;gap:75px}.about-copy{color:var(--muted);font-size:13px}.about-copy p{margin:0 0 12px}.values{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.value{border:1px solid var(--line);background:#fff;padding:9px 13px;border-radius:6px;font-size:10px;color:var(--green);font-weight:600}
.contact{background:#e9f0e8;padding:70px 0}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}.contact-info p{font-size:13px;color:var(--muted)}.contact-box{margin-top:23px;background:#fff;padding:17px;border-radius:9px;font-size:12px;color:#597067}
.contact-form{background:#fff;padding:25px;border-radius:10px;box-shadow:0 10px 30px #23483a0d}.contact-form h3{margin:0 0 16px;font-size:16px;color:var(--green)}.fieldrow{display:grid;grid-template-columns:1fr 1fr;gap:12px}.field{margin-bottom:12px}.field label{display:block;font-size:10px;color:#60736a;margin-bottom:5px}.field input,.field select,.field textarea{width:100%;border:1px solid #e0e8e1;border-radius:5px;padding:10px;font:12px "Noto Sans Thai";background:#fcfdfb;color:var(--ink)}.field textarea{height:74px;resize:vertical}
.form-note{font-size:10px;color:#7a8b84;margin:8px 0 14px}.notice{display:none;padding:11px;background:#e9f2e9;color:var(--green);font-size:11px;border-radius:6px;margin-top:10px;white-space:pre-line}
.footer{background:#092e2a;color:#cbd8d1;padding:40px 0 22px}.footer-main{display:flex;justify-content:space-between;gap:30px;padding-bottom:26px;border-bottom:1px solid #ffffff22}.footer .brand{color:#fff}.footer-copy{font-size:10px;color:#9eb5a9;max-width:390px;margin-top:13px}.footer-links{display:flex;gap:20px;font-size:11px}.copyright{display:flex;justify-content:space-between;padding-top:16px;font:10px "DM Sans";color:#9eb5a9}.mobile-cta{display:none}
@media(max-width:900px){.links{gap:16px}.links a{font-size:11px}.hero .wrap{grid-template-columns:1fr 0.8fr;gap:25px}.hero-visual{height:315px}.service-grid{grid-template-columns:repeat(2,1fr)}.feature-grid{gap:35px}.schedule-grid{gap:25px}.cards{gap:12px}}
@media(max-width:680px){.wrap{width:min(100% - 32px,520px)}.topbar .wrap{justify-content:center;text-align:center}.topbar .right{display:none}.nav{height:68px}.menu{display:block}.links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;padding:15px 22px 20px;box-shadow:0 15px 20px #082d2917;flex-direction:column;align-items:stretch;gap:0}.links.open{display:flex}.links a{padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}.nav-cta{display:none}.hero .wrap{min-height:auto;grid-template-columns:1fr;padding:52px 0 34px}.hero h1{font-size:40px}.hero p{font-size:14px}.hero-visual{height:260px}.hero-note{gap:12px;flex-wrap:wrap;margin-top:25px}.trust .wrap{display:block;text-align:center;padding:18px 0}.trust-items{justify-content:center;gap:13px;margin-top:10px}.trust-items span{font-size:10px}.section{padding:61px 0}.section-head{display:block}.section-head p{margin-top:12px}.catalog-tools{display:block}.count{display:block;margin-top:12px}.cards{grid-template-columns:1fr}.course-image{height:195px}.course p{min-height:0}.schedule-grid{grid-template-columns:1fr;gap:22px}.schedule-list{padding:5px 15px}.schedule-row{grid-template-columns:57px 1fr auto;gap:10px}.schedule-row strong{font-size:11px}.status{font-size:9px}.service-grid{grid-template-columns:1fr 1fr;gap:10px}.service{padding:16px 14px;min-height:190px}.service-icon{margin:12px 0 4px}.feature-grid{grid-template-columns:1fr;gap:26px}.feature-photo{height:290px;order:2}.about .wrap{grid-template-columns:1fr;gap:15px}.about{padding:56px 0}.cta{padding:42px 0}.cta .wrap{display:block}.cta .btn{margin-top:19px}.cta h2{font-size:25px}.contact{padding:55px 0}.contact-grid{grid-template-columns:1fr;gap:22px}.fieldrow{grid-template-columns:1fr}.footer-main{display:block}.footer-links{margin-top:22px;flex-wrap:wrap}.copyright{display:block}.copyright span{display:block;margin-top:5px}.mobile-cta{display:flex;position:fixed;z-index:9;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);padding:9px 14px;justify-content:space-between;align-items:center;box-shadow:0 -5px 20px #092e2a10}.mobile-cta span{font-size:10px;color:var(--green);font-weight:600}.mobile-cta .btn{padding:9px 14px;font-size:11px}.footer{padding-bottom:80px}}

/* ---------- 2. THEME (navy & gold) — แก้สีหลักที่นี่ ---------- */
:root{--green:#102941;--green2:#14638a;--mint:#eaf0f5;--lime:#edc572;--ink:#172e43;--muted:#526375;--paper:#f7f8fa;--white:#fff;--line:#dce3ea;--gold:#edc572;--shadow:0 16px 40px #10294114}
html{scroll-padding-top:105px}body{font-size:16px;line-height:1.8}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}:focus-visible{outline:3px solid #087eaf;outline-offset:5px}.skip{position:fixed;top:-100px;left:20px;z-index:100;background:white;padding:12px}.skip:focus{top:10px}.wrap{width:min(1240px,calc(100% - 64px))}
.topbar{background:#0a1c2c}.topbar .wrap{padding:8px 0;font-size:12px}.nav{height:88px}.brand{font-size:23px}.brandmark{border-radius:3px;transform:none;width:46px;height:46px;border:1px solid #c49b4d}.brand small{color:#586e83;font-size:10px}.links{gap:24px;color:#344c60}.links a{font-size:14px;padding:12px 0}
.btn,.nav-cta{min-height:48px;font-size:15px;border-radius:4px;padding:13px 22px;box-shadow:none}.btn:hover,.nav-cta:hover{box-shadow:0 8px 24px #10294120}
.hero{background:#102941}.hero:after{display:none}.hero .wrap{min-height:630px;grid-template-columns:1.05fr 1fr;gap:52px;padding:64px 0}.eyebrow{font-size:11px;letter-spacing:.19em}h1{font-size:clamp(38px,4.4vw,62px);line-height:1.34;letter-spacing:-.025em;margin:24px 0}.hero p{font-size:17px;line-height:1.9;color:#d6e2ec}
.hero-visual{height:475px;border-radius:3px 76px 3px 3px;background:#284156;box-shadow:none}.hero-visual img{mix-blend-mode:normal;opacity:.92;filter:saturate(.65)}.visual-label{border-radius:3px;background:#fff;left:22px;right:22px;bottom:22px;padding:21px}.visual-label strong{font-size:18px}.visual-label small{font-size:13px;color:var(--muted)}.round-icon{border-radius:2px;width:45px;height:45px}.hero-note{font-size:12px;color:#c6d6e3;gap:18px}
.trust .wrap{padding:25px 0}.trust strong{font-size:13px;color:var(--muted)}.trust-items{font-family:inherit;font-size:14px;color:var(--green);gap:24px}.trust-items span:before{content:"";display:inline-block;height:5px;width:5px;background:#b48b3f;margin-right:10px;vertical-align:middle}
.section{padding:96px 0}.kicker{font-size:12px;letter-spacing:.16em}.section-head p,.schedule-intro p,.feature-content p,.about-copy,.contact-info p{font-size:16px}h2{font-size:clamp(30px,3.1vw,44px);line-height:1.45;letter-spacing:-.02em}.section-head{margin-bottom:32px}
.catalog-tools{gap:15px;flex-wrap:wrap}.filter{font-size:14px;min-height:44px;padding:9px 18px;border-radius:4px}.count{font:14px inherit;color:var(--muted)}.search-row{display:flex;align-items:center;gap:14px;margin-bottom:20px}.search-row label{font-size:14px;font-weight:600}.search-row input{width:min(440px,100%);padding:13px 16px;border:1px solid var(--line);border-radius:4px;font:16px inherit;background:white}
.cards{gap:24px}.course{border-radius:5px;display:flex;flex-direction:column}.course[hidden]{display:none}.course-image{height:210px;background:#d8e3ec}.course-body{padding:24px;display:flex;flex-direction:column;flex:1}.course-meta{font-size:10px;color:#526375;line-height:1.5}.course h3{font-size:20px;line-height:1.6;margin:12px 0}.course p{font-size:15px;line-height:1.8;min-height:0}.tag{font-size:12px;background:white;border-radius:3px}.course-foot{margin-top:auto;gap:12px;align-items:start;flex-direction:column}.course-foot span{font-size:13px;color:var(--muted)}.text-link{font-size:14px;min-height:44px;display:inline-flex;align-items:center}.detail-button{background:transparent;border:0;color:var(--green2);padding:0;text-align:left;font-weight:700;min-height:44px;font-size:15px}
.schedule{background:#eaf0f5}.schedule-grid{grid-template-columns:.8fr 1.2fr;gap:70px}.schedule-list{border-radius:4px}.schedule-row{padding:24px 0;grid-template-columns:72px 1fr auto}.schedule-row strong{font-size:16px}.schedule-row small{font-size:13px;color:var(--muted)}.date{border-radius:3px;background:#f0f3f7;font-size:12px}.date b{font-size:26px}.status{font-size:11px;color:#314e67;background:#edf2f7;white-space:normal;text-align:center}
.service-grid{gap:24px}.service{border-top:2px solid #c49b4d;padding:28px 23px;min-height:260px}.service-no{color:#526375;font-size:11px}.service-icon{color:var(--green2);margin:22px 0 15px}.service-icon svg{width:32px;height:32px}.service h3{font-size:19px}.service p{font-size:15px}
.feature-photo{border-radius:4px;height:470px}.photo-caption{font-size:15px}.step{padding:20px 0}.step-num{width:34px;height:34px;flex-basis:34px;font-size:14px}.step strong{font-size:17px}.step small{font-size:14px}
.cta{padding:64px 0}.cta h2{font-size:34px}.cta p{font-size:16px;color:#c9d9e8}.about{padding:90px 0}.value{font-size:13px}
.contact{background:#edf1f5;padding:85px 0}.contact-box{font-size:15px;color:var(--muted)}.contact-form{border-radius:5px;padding:32px}.contact-form h3{font-size:21px}.field label{font-size:14px;color:var(--muted)}.field input,.field select,.field textarea{font-size:16px;padding:12px;background:#fff;border-color:#b9c6d2;border-radius:3px}.field textarea{height:110px}.form-note,.notice{font-size:13px;color:var(--muted)}
.footer{background:#0a1c2c;padding-top:55px}.footer-copy,.footer-links,.copyright{font-size:13px}.footer-copy,.copyright{color:#b7c9da}.footer-links{flex-wrap:wrap}.footer .brand small{color:#b7c9da}
.empty{padding:35px;background:white;border:1px dashed #b9c6d2;text-align:center;color:var(--muted)}.empty[hidden]{display:none}
dialog{border:0;border-radius:8px;padding:36px;width:min(650px,calc(100% - 32px));max-height:85dvh;color:var(--ink);box-shadow:0 30px 100px #0004}dialog::backdrop{background:#061525b8}dialog h2{font-size:28px;margin:16px 0}dialog p{font-size:16px}.dialog-close{display:block;margin-left:auto;background:#edf1f5;border:0;min-height:44px;padding:8px 16px;border-radius:4px}.dialog-audience{border-left:3px solid var(--gold);padding:12px 16px;background:#f6f7f9}.dialog-actions{margin-top:25px}
.faq{background:#fff;padding:65px 0}.faq details{border-bottom:1px solid var(--line);padding:20px 0}.faq summary{cursor:pointer;font-size:18px;font-weight:600;min-height:44px}.faq details p{max-width:850px;color:var(--muted)}.mobile-cta span{font-size:12px}.menu{min-height:44px;min-width:44px}
@media(max-width:1050px){.links{gap:16px}.links a{font-size:12px}.nav-cta{font-size:13px;padding:12px}.hero .wrap{gap:30px}.hero-visual{height:440px}.cards{gap:16px}.course-body{padding:19px}.course h3{font-size:18px}.service-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){.nav-cta{display:none}.cards{grid-template-columns:repeat(2,1fr)}.hero .wrap{grid-template-columns:1fr 1fr}.hero h1{font-size:38px}.hero-note{flex-wrap:wrap}.schedule-grid{gap:25px;grid-template-columns:1fr}.contact-grid{gap:28px}.trust .wrap{display:block}.trust-items{margin-top:14px}.feature-grid{gap:30px}}
@media(max-width:680px){.wrap{width:calc(100% - 36px)}.nav{height:74px}.brand{font-size:20px}.links{top:74px}.links a{font-size:16px;min-height:48px}.hero .wrap{grid-template-columns:1fr;padding:45px 0 30px;gap:30px}.hero h1{font-size:39px}.hero p{font-size:16px}.hero-visual{height:310px;border-radius:3px 48px 3px 3px}.hero-note{font-size:12px}.hero-actions{gap:10px}.hero-actions .btn{font-size:14px;padding:12px 16px}.visual-label{left:15px;right:15px;bottom:15px;padding:15px}.visual-label strong{font-size:16px}.trust-items{gap:12px;font-size:13px}.trust-items span{font-size:13px}.section{padding:62px 0}.section-head p{font-size:15px}.cards{grid-template-columns:1fr}.course-image{height:220px}.course h3{font-size:21px}.course-body{padding:23px}.course-foot{flex-direction:row;align-items:center}.course-foot span{max-width:60%}.search-row{align-items:stretch;flex-direction:column;gap:6px}.search-row input{width:100%}.service-grid{grid-template-columns:1fr}.service{min-height:0}.feature-grid,.about .wrap,.contact-grid{grid-template-columns:1fr}.feature-photo{height:340px}.schedule-row{grid-template-columns:58px 1fr;gap:14px}.schedule-row .status{grid-column:2;justify-self:start}.schedule-row strong{font-size:16px}.cta h2{font-size:29px}.contact-form{padding:22px}.about,.contact{padding:62px 0}.footer{padding-bottom:110px}.copyright span{margin-top:8px}.mobile-cta{padding-bottom:max(10px,env(safe-area-inset-bottom))}.mobile-cta .btn{font-size:13px;min-height:44px}dialog{padding:24px}.faq{padding:50px 0}.faq summary{font-size:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.course:hover,.btn:hover,.nav-cta:hover{transform:none}}

/* ---------- 3. BRAND THEME — Flame of Prosperity (จากโลโก้บริษัท) ----------
   น้ำเงินเข้ม (Royal Navy) + เปลวไฟ แดง→ส้ม→ทอง + วงโคจรน้ำเงิน/ทอง */
:root{
  --green:#0b2559;            /* royal navy (สีหลัก) */
  --green2:#1c5bd0;           /* orbit blue (ลิงก์/ไอคอน) */
  --navy-deep:#071a42;
  --mint:#eaf0fb;--ink:#0f2347;--muted:#4f5f7a;--paper:#f6f8fc;--line:#dbe3f0;
  --lime:#f6b72d;--gold:#f6b72d;
  --flame:#e2262b;--flame2:#f7791f;
  --grad-flame:linear-gradient(90deg,#e2262b,#f7791f 55%,#f6b72d);
  --grad-gold:linear-gradient(135deg,#ffd25a,#f39a1e);
  --shadow:0 16px 40px #0b255918;
}
.logo-mark{width:52px;height:52px;flex:0 0 auto;display:block}
.footer .logo-mark{width:48px;height:48px}
.topbar{background:var(--navy-deep);position:relative}
.topbar:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--grad-flame)}
.btn,.nav-cta{background:var(--grad-gold);color:var(--green)}
.btn:hover,.nav-cta:hover{box-shadow:0 10px 26px #f39a1e45}
.btn-dark{background:transparent;color:#fff;border:1px solid #ffffff70}
.hero{background:
  radial-gradient(900px 420px at 88% -8%,#1f5fd166,transparent 62%),
  radial-gradient(640px 380px at 0% 115%,#e2262b2e,transparent 60%),
  linear-gradient(160deg,#0b2559 0%,#071a42 100%)}
.hero:after{display:block;content:"";position:absolute;width:980px;height:250px;right:-300px;bottom:38px;top:auto;border:2px solid #f6b72d38;border-radius:50%;transform:rotate(-12deg);box-shadow:0 0 0 18px #1f5fd10f}
.eyebrow{color:var(--gold)}
.eyebrow:before{background:var(--grad-flame);height:3px;width:32px}
h1 .accent{background:var(--grad-flame);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-note i{background:var(--grad-flame)}
.hero-visual{background:#13306b;box-shadow:0 24px 60px #02091f80}
.round-icon{background:var(--grad-flame);color:#fff}
.trust-items span:before{background:var(--flame2);border-radius:50%;width:7px;height:7px}
.filter.active,.filter:hover{background:var(--green);border-color:var(--green)}
.tag{color:var(--green);border-left:3px solid var(--flame2)}
.schedule{background:#eaf0fb}
.date b{color:var(--flame)}
.status{background:#fff4dc;color:#8a5200}
.service{border-top:0;position:relative}
.service:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-flame)}
.service-icon{color:var(--green2)}
.step-num{background:var(--grad-flame);color:#fff}
.cta{background:linear-gradient(115deg,#0b2559,#14398a);position:relative;overflow:hidden}
.cta:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-flame)}
.dialog-audience{border-left-color:var(--flame2)}
.contact{background:#edf2fa}
.footer{background:var(--navy-deep);position:relative}
.footer:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-flame)}
.footer .brand small{color:#f6b72d}
.mobile-cta{border-top:2px solid var(--flame2)}

/* Brand story section */
.brand-story{background:linear-gradient(160deg,#0b2559,#071a42);color:#fff;padding:90px 0;position:relative;overflow:hidden}
.brand-story:after{content:"";position:absolute;width:760px;height:200px;left:-260px;top:40px;border:2px solid #f6b72d2e;border-radius:50%;transform:rotate(-12deg);pointer-events:none}
.brand-story .wrap{position:relative;z-index:1}
.brand-intro{display:grid;grid-template-columns:auto 1fr;gap:48px;align-items:center;margin-bottom:46px}
.brand-logo{width:235px;height:auto;border-radius:6px;box-shadow:0 20px 50px #02091f99}
.brand-story h2{color:#fff}
.brand-story .kicker{color:var(--gold)}
.brand-story p{color:#cdd9ef;max-width:620px}
.meaning-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.meaning{background:#ffffff0d;border:1px solid #ffffff1f;border-radius:6px;padding:26px 22px;position:relative}
.meaning:before{content:"";position:absolute;left:22px;right:22px;top:0;height:2px;background:var(--grad-flame)}
.meaning svg{width:46px;height:46px;display:block;margin-bottom:14px}
.meaning h3{margin:0;font-size:19px;color:#fff}
.meaning small{display:block;font:600 12px "DM Sans";letter-spacing:.08em;text-transform:uppercase;color:var(--gold);margin-top:2px}
.meaning p{margin:10px 0 0;font-size:15px;line-height:1.7;color:#cdd9ef}
@media(max-width:1050px){.meaning-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.brand-story{padding:62px 0}.brand-intro{grid-template-columns:1fr;gap:24px;justify-items:start}.brand-logo{width:200px}.meaning-grid{grid-template-columns:1fr 1fr;gap:12px}.meaning{padding:20px 16px}.meaning h3{font-size:17px}.meaning p{font-size:14px}.logo-mark{width:44px;height:44px}}

/* ---------- 4. BUSINESS LINES: pillars, products, technician, unified form ---------- */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.btn-ghost{background:#eaf0fb;color:var(--green)}
.btn-ghost:hover{box-shadow:none;background:#dfe8f8}

/* pillars */
.pillars{background:#fff;border-bottom:1px solid var(--line)}
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.pillar{display:flex;align-items:center;gap:16px;padding:26px 24px;border-right:1px solid var(--line);transition:background .2s}
.pillar:first-child{padding-left:0}.pillar:last-child{border-right:0}
.pillar:hover{background:#f6f8fc}
.pillar-icon{flex:0 0 52px;height:52px;border-radius:4px;display:grid;place-items:center;background:var(--green);color:var(--gold)}
.pillar-icon svg{width:28px;height:28px}
.pillar strong{display:block;font-size:17px;color:var(--green);line-height:1.4}
.pillar small{display:block;font-size:13px;color:var(--muted);line-height:1.5;margin-top:3px}
.pillar b{margin-left:auto;color:var(--flame2);font-size:18px}

/* products */
.products{background:#fff}
.product-ph{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--gold);background:radial-gradient(260px 160px at 80% 0%,#1f5fd155,transparent 70%),linear-gradient(150deg,#0b2559,#071a42)}
.product-ph svg{width:64px;height:64px}
.product-ph span{font-size:13px;color:#cdd9ef;letter-spacing:.04em}
.product .course-image{height:190px}
.price{font-size:18px;font-weight:700;color:var(--flame);margin:0 0 14px}
.price small{font-size:13px;color:var(--muted);font-weight:500}
.add-row{display:flex;gap:10px;align-items:stretch;margin-top:auto}
.qty{display:flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:4px;padding:0 10px;background:#fff}
.qty input{width:52px;border:0;font:16px inherit;padding:8px 0;text-align:center;background:transparent;color:var(--ink)}
.qty em{font-style:normal;font-size:13px;color:var(--muted)}
.add-quote{flex:1;min-height:46px;font-size:14px;padding:10px 14px}
.add-quote.added{background:#1f8a4c;color:#fff}

/* technician */
.technician{background:#eaf0fb}
.area-strip{display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;background:#fff;border-left:4px solid var(--flame2);padding:16px 20px;border-radius:4px;margin-bottom:26px}
.area-strip strong{color:var(--green);font-size:15px}
.area-strip div{display:flex;flex-wrap:wrap;gap:8px}
.area-strip span{background:#eaf0fb;color:var(--green);font-size:14px;padding:4px 12px;border-radius:20px}
.tech-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.tech{background:#fff;border-radius:5px;padding:24px 20px;display:flex;flex-direction:column;position:relative;border:1px solid var(--line)}
.tech:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-flame);border-radius:5px 5px 0 0}
.tech-icon{width:48px;height:48px;border-radius:4px;display:grid;place-items:center;background:#fff3e3;color:var(--flame2);margin-bottom:14px}
.tech-icon svg{width:28px;height:28px}
.tech h3{margin:0 0 6px;font-size:18px;color:var(--green)}
.tech p{margin:0 0 12px;font-size:14px;color:var(--muted);line-height:1.7}
.tech ul{margin:0 0 14px;padding:0;list-style:none;font-size:14px;line-height:1.6}
.tech li{padding:5px 0 5px 18px;position:relative;border-top:1px dashed var(--line)}
.tech li:before{content:"";position:absolute;left:2px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--gold)}
.tech .text-link{margin-top:auto}
.tech-steps{list-style:none;margin:30px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tech-steps li{display:flex;gap:12px;align-items:flex-start}
.tech-steps b{flex:0 0 34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--grad-flame);color:#fff;font:700 14px "DM Sans"}
.tech-steps strong{display:block;color:var(--green);font-size:16px}
.tech-steps small{display:block;color:var(--muted);font-size:13px;line-height:1.6}

/* unified form */
.type-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:18px}
.type-tabs label{cursor:pointer}
.type-tabs input{position:absolute;opacity:0;pointer-events:none}
.type-tabs span{display:flex;align-items:center;justify-content:center;text-align:center;min-height:48px;padding:8px 10px;border:1px solid #b9c6d2;border-radius:4px;font-size:14px;font-weight:600;color:var(--muted);line-height:1.4;transition:.15s}
.type-tabs input:checked+span{background:var(--green);border-color:var(--green);color:#fff;box-shadow:inset 0 -3px 0 var(--flame2)}
.type-tabs input:focus-visible+span{outline:3px solid #087eaf;outline-offset:3px}
.type-panel{border:0;margin:0;padding:0;min-width:0}
.type-panel[hidden]{display:none}
.field-label{display:block;font-size:14px;color:var(--muted);margin-bottom:5px}
.quote-items{border:1px solid #b9c6d2;border-radius:3px;background:#fbfcfe}
.qi{display:grid;grid-template-columns:1fr 70px auto 36px;gap:8px;align-items:center;padding:9px 12px;border-bottom:1px solid var(--line);font-size:15px}
.qi:last-child{border-bottom:0}
.qi small{color:var(--muted)}
.qi input{width:70px;padding:6px;border:1px solid var(--line);border-radius:3px;font:15px inherit;text-align:center}
.qi em{font-style:normal;font-size:13px;color:var(--muted)}
.qi-del{background:transparent;border:0;font-size:20px;color:#c3201f;min-height:36px}
.qi-empty{margin:0;padding:12px;font-size:14px;color:var(--muted)}
.qi-empty a{color:var(--green2);text-decoration:underline}
.photo-preview{display:flex;gap:8px;margin-top:8px;align-items:center;flex-wrap:wrap}
.photo-preview img{width:72px;height:72px;object-fit:cover;border-radius:4px;border:1px solid var(--line)}
.photo-preview small{color:var(--muted)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.6;margin:6px 0 4px;cursor:pointer}
.consent input{margin-top:5px;width:18px;height:18px;flex:0 0 18px;accent-color:var(--green)}
.consent a{color:var(--green2);text-decoration:underline;margin-left:3px}
.notice.ok{background:#e8f6ee;color:#145c36;border-left:4px solid #1f8a4c}
.notice.error{background:#fdecec;color:#9b1c1c;border-left:4px solid #c3201f}
.notice pre{white-space:pre-wrap;font:14px/1.6 "Noto Sans Thai",sans-serif;background:#fff;padding:12px;border-radius:4px;margin:10px 0 0;color:var(--ink)}
.notice-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.contact-box div{padding:4px 0}
.contact-box a{color:var(--green2);text-decoration:underline}
button[disabled]{opacity:.6;cursor:wait}

/* floating buttons */
.quote-fab,.line-fab{position:fixed;z-index:20;right:22px;display:inline-flex;align-items:center;gap:8px;font-weight:700;border-radius:30px;box-shadow:0 10px 30px #0b255940}
.quote-fab{bottom:22px;background:var(--green);color:#fff;padding:12px 18px;font-size:14px}
.quote-fab b{background:var(--grad-flame);border-radius:20px;min-width:24px;height:24px;display:grid;place-items:center;font-size:13px;padding:0 6px}
.line-fab{bottom:84px;background:#06c755;color:#fff;padding:12px 18px;font:700 14px "DM Sans",sans-serif}
.quote-fab[hidden],.line-fab[hidden]{display:none}
.quote-fab[hidden]+.line-fab{bottom:22px}

@media(max-width:1180px){.tech-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){.pillar-grid{grid-template-columns:1fr}.pillar{border-right:0;border-bottom:1px solid var(--line);padding:18px 0}.pillar:last-child{border-bottom:0}.tech-grid{grid-template-columns:repeat(2,1fr)}.tech-steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){
  .tech-grid{grid-template-columns:1fr}.tech-steps{grid-template-columns:1fr}
  .type-tabs{grid-template-columns:1fr}.type-tabs span{min-height:44px}
  .qi{grid-template-columns:1fr 64px 32px}.qi em{display:none}
  .quote-fab{display:none}.line-fab{bottom:86px;right:14px;padding:10px 14px}
  .mobile-cta{gap:8px}.mobile-cta .btn{flex:1;font-size:14px}
}
.price.ask{color:var(--green2);font-size:16px}