:root{--green:#0c573a;--deep:#073b2a;--mint:#dcefdc;--lime:#c9e568;--cream:#f7f4eb;--ink:#16251f;--muted:#66756e;--white:#fff;--gold:#dfb847;--shadow:0 24px 70px rgba(3,45,30,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--cream);font-family:"IBM Plex Sans Thai",sans-serif;line-height:1.65}img{display:block;width:100%}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 48px));margin:auto}.topbar{background:var(--deep);color:#d4e8de;font-size:12px;letter-spacing:.04em}.topbar-inner{height:35px;display:flex;align-items:center;justify-content:space-between}.topbar a{color:white}.site-header{position:absolute;z-index:20;top:35px;width:100%;border-bottom:1px solid rgba(255,255,255,.22);color:white;transition:.3s}.site-header.scrolled{position:fixed;top:0;background:rgba(247,244,235,.97);color:var(--ink);box-shadow:0 5px 30px rgba(5,45,30,.1);border:0}.nav-wrap{height:92px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:14px}.brand img{width:60px;height:60px;border-radius:50%;object-fit:cover;background:white}.brand 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rgba(255,255,255,.55)}.hero-side{position:absolute;right:26px;top:255px;writing-mode:vertical-rl;display:flex;gap:18px;align-items:center;font-size:9px;letter-spacing:.26em;color:rgba(255,255,255,.65)}.hero-side strong{color:white;font-size:13px}.scroll-cue{position:absolute;z-index:3;bottom:24px;left:50%;transform:translateX(-50%);font-size:10px;letter-spacing:.12em;display:flex;flex-direction:column;align-items:center;gap:8px}.scroll-cue span{height:35px;width:1px;background:var(--lime)}.section{padding:120px 0}.intro-grid,.people-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.section-tag{display:flex;align-items:center;gap:14px;color:var(--green);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.section-tag:before{content:"";width:35px;height:1px;background:currentColor}.section-tag span{margin-left:auto;color:#9caaa3}.section-tag.light{color:var(--lime)}h2{font-size:clamp(42px,5vw,68px)}h2 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var(--cream)}.stamp{position:absolute;right:-25px;bottom:22px;width:140px;height:140px;border-radius:50%;background:var(--lime);display:flex;flex-direction:column;justify-content:center;align-items:center;transform:rotate(-7deg);color:var(--deep)}.stamp:after{content:"";position:absolute;inset:8px;border:1px dashed var(--deep);border-radius:50%}.stamp strong{font-size:22px}.stamp span{font-size:12px}.principles{background:var(--deep);color:white;position:relative}.principles:before{content:"";position:absolute;inset:0;opacity:.04;background:radial-gradient(circle at 15% 40%,#fff 0 1px,transparent 2px);background-size:25px 25px}.section-head{position:relative;display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:65px}.section-head>p{max-width:410px;color:#b8cbc1;margin-bottom:25px}.principles h2 em{color:var(--lime)}.principle-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.2);border-left:1px solid rgba(255,255,255,.2)}.principle-card{min-height:350px;padding:30px;border-right:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2);transition:.3s}.principle-card:hover{background:rgba(201,229,104,.09);transform:translateY(-7px)}.card-no{font-size:10px;color:#85a192}.line-icon{font-size:40px;color:var(--lime);margin:45px 0 34px}.principle-card h3{font-size:20px}.principle-card p{font-size:14px;color:#aec2b8}.people{background:white}.people-photo{height:650px;position:relative}.people-photo img{height:100%;object-fit:cover}.photo-caption{position:absolute;left:0;right:60px;bottom:0;background:var(--green);color:white;padding:25px 32px;display:flex;flex-direction:column}.photo-caption span{font-size:10px;letter-spacing:.13em;color:var(--lime)}.photo-caption strong{font-size:18px}.section-copy blockquote{margin:35px 0;padding:22px 0 22px 25px;border-left:3px solid 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/* ภาพหน้าปกหลักของโรงเรียน */
.hero-bg{background-image:linear-gradient(90deg,rgba(5,46,32,.94) 0%,rgba(5,46,32,.72) 46%,rgba(5,46,32,.1) 82%),url("734387609_1732522395231058_757708042077913546_n.jpg");background-position:center;background-size:cover}