:root{--ink:#293642;--nav:#566b7c;--nav2:#73889a;--gold:#d9a93b;--muted:#737b84;--line:#e2e6e9;--shadow:0 16px 40px rgba(37,55,68,.13)}
*{box-sizing:border-box}html,body{margin:0;max-width:100%;overflow-x:hidden}html{scroll-behavior:smooth}
body{font-family:'Mali',Tahoma,sans-serif;background:linear-gradient(180deg,#f8fbfd,#f5efe7);color:var(--ink)}
a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}
.site-header{position:sticky;top:0;z-index:100;min-height:74px;padding:8px clamp(10px,2vw,24px);display:flex;align-items:center;gap:14px;background:rgba(86,107,124,.98);color:#fff;box-shadow:0 7px 24px rgba(0,0,0,.14)}
.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand-icon{font-size:2rem;flex:0 0 auto}.brand b{display:block;color:#ffe59a;font-family:'Itim';font-size:1.08rem;line-height:1.2}.brand small{display:block;font-size:.72rem;font-weight:700}
.top-nav{display:flex;gap:2px;margin-left:auto;white-space:nowrap}.top-nav a{padding:10px 9px;border-radius:999px;font-weight:800;white-space:nowrap}.top-nav a:hover,.top-nav a.active{background:#fff;color:var(--nav)}
.menu-button{display:none;margin-left:auto;border:0;border-radius:15px;padding:11px 15px;background:#fff;color:var(--nav);font-family:'Itim';font-weight:900;white-space:nowrap}
.hero{position:relative;min-height:min(72vh,700px);display:grid;place-items:center;overflow:hidden;background:#4f6576}.hero::before{content:"";position:absolute;inset:-30px;background:url('main/page-01.jpg') center/cover no-repeat;filter:blur(9px) brightness(.72);transform:scale(1.06)}
.hero-inner{position:relative;z-index:2;width:min(1200px,94vw);display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.75fr);gap:28px;align-items:center;padding:34px 0}.hero-copy{color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.2)}
.eyebrow{display:inline-block;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.16);font-weight:800}.hero-copy h1{font-family:'Itim';font-size:clamp(3rem,7vw,6.2rem);line-height:1.02;margin:18px 0 14px}.hero-copy p{font-size:clamp(1.05rem,2vw,1.35rem);line-height:1.85}
.hero-cover{background:#fff;padding:12px;border-radius:28px;box-shadow:0 24px 60px rgba(0,0,0,.25)}.hero-cover img{width:100%;border-radius:20px}
.hero-menu{width:min(1300px,calc(100% - 22px));margin:-18px auto 34px;position:relative;z-index:4;display:flex;overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);scrollbar-width:none}.hero-menu::-webkit-scrollbar{display:none}
.hero-link{flex:1 0 170px;min-width:170px;min-height:105px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:7px;border-right:1px solid var(--line);font-weight:800;color:var(--nav);text-align:center;padding:12px}.hero-link:last-child{border-right:0}.hero-link:hover{background:#f2f7fa}.hero-link span:last-child{white-space:nowrap}
.container{width:min(1240px,100%);margin:auto;padding:42px 20px;min-width:0}.page-head h1{font-family:'Itim';font-size:clamp(2.1rem,4.6vw,3.8rem);color:var(--nav);margin:0 0 10px;line-height:1.15}.page-head p{font-size:1.06rem;line-height:1.9;color:var(--muted);max-width:1000px}
.section-title{font-family:'Itim';font-size:2rem;color:var(--nav);margin:42px 0 18px}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.card{min-width:0;background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow);line-height:1.9}.card h2,.card h3{font-family:'Itim';color:var(--nav);line-height:1.25;margin-top:0}.card p{line-height:1.9}
.photo{width:100%;border-radius:20px;background:#fff;box-shadow:var(--shadow);cursor:zoom-in}.timeline{display:grid;gap:18px}
.event{display:grid;grid-template-columns:minmax(300px,460px) minmax(0,1fr);gap:22px;align-items:center;background:#fff;border-radius:24px;padding:18px;box-shadow:var(--shadow)}.event:nth-child(even){grid-template-columns:minmax(0,1fr) minmax(300px,460px)}.event:nth-child(even) img{order:2}.event>*{min-width:0}.event h3{font-family:'Itim';color:var(--nav);font-size:1.45rem;line-height:1.3}.event p{line-height:1.9}
.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.gallery-card{background:#fff;padding:16px;border-radius:22px;box-shadow:var(--shadow);min-width:0}.gallery-card h3{font-family:'Itim';color:var(--nav);margin:7px 5px 12px}.gallery-card img{border-radius:16px;cursor:zoom-in}
.note{padding:20px;border-radius:20px;background:var(--nav);color:#fff;line-height:1.9}.pill{display:inline-block;padding:6px 12px;border-radius:999px;background:#eaf1f5;color:var(--nav);font-weight:800;white-space:nowrap}
.table-wrap{overflow-x:auto;border-radius:22px;box-shadow:var(--shadow);background:#fff}table{border-collapse:collapse;width:100%;min-width:760px}th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.7}th{background:#e8f0f5;color:var(--nav);font-family:'Itim';white-space:nowrap}
.quiz-wrap{max-width:980px;margin:auto}.progress-card{position:sticky;top:84px;z-index:20}.progress{height:14px;background:#e7ebee;border-radius:999px;overflow:hidden;margin-top:10px}.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--nav2),var(--gold))}
.qcard{background:#fff;border-radius:22px;padding:22px;margin:18px 0;box-shadow:var(--shadow)}.level-heading{margin:30px 0 12px;padding:16px 20px;border-radius:18px;background:var(--nav);color:#fff;font-family:'Itim';font-weight:900}
.option{display:grid;grid-template-columns:24px 34px minmax(0,1fr);gap:8px;align-items:start;margin:9px 0;padding:13px;border:2px solid #e0e6ea;border-radius:15px;cursor:pointer}.option:hover{border-color:var(--nav2);background:#f7fafc}
.btn{min-height:50px;padding:0 24px;border:2px solid var(--nav);border-radius:16px;background:#fff;color:var(--nav);font-family:'Itim';font-weight:900;white-space:nowrap}.btn.primary{background:var(--nav);color:#fff}
.result{display:none;background:#fff;border-radius:24px;padding:24px;margin-top:22px;box-shadow:var(--shadow)}.result.show{display:block}.score-display{margin:16px 0;padding:18px;border-radius:20px;background:linear-gradient(135deg,var(--nav2),var(--gold));color:#fff;font-family:'Itim';font-size:clamp(2rem,6vw,3.3rem);font-weight:900;text-align:center}.review{padding:14px;margin:10px 0;border-radius:14px;line-height:1.7}.correct{background:#e8f4ea}.wrong{background:#fdeae7}
.lightbox{display:none;position:fixed;inset:0;z-index:500;align-items:center;justify-content:center;padding:24px;background:rgba(15,25,33,.94)}.lightbox.show{display:flex}.lightbox img{max-width:94vw;max-height:88vh;object-fit:contain}.lightbox-close{position:absolute;right:20px;top:18px;width:48px;height:48px;border:0;border-radius:50%;font-size:1.8rem}.footer{margin-top:50px;background:var(--nav);color:#fff;text-align:center;padding:28px 20px;display:grid;gap:6px}
@media(max-width:1080px){.menu-button{display:block}.top-nav{display:none;position:absolute;top:calc(100% + 8px);left:12px;right:12px;max-height:70vh;overflow:auto;flex-direction:column;background:var(--nav);padding:12px;border-radius:18px}.top-nav.open{display:flex}.top-nav a{background:#fff;color:var(--nav);text-align:center}.hero-inner{grid-template-columns:1fr}.hero-cover{max-width:520px;justify-self:center}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-2,.event,.event:nth-child(even){grid-template-columns:1fr}.event:nth-child(even) img{order:0}}
@media(max-width:680px){.site-header{min-height:74px;padding:8px 10px}.brand{max-width:calc(100% - 108px)}.brand-icon{font-size:1.65rem}.brand b{font-size:.84rem}.brand small{font-size:.64rem}.menu-button{padding:10px 13px}.hero{min-height:0}.hero-inner{width:100%;padding:18px 12px 28px}.hero-copy h1{font-size:clamp(2.5rem,12vw,4rem)}.hero-copy p{font-size:.98rem;line-height:1.75}.hero-cover{padding:8px;border-radius:18px}.hero-menu{width:calc(100% - 14px);margin:8px auto 24px}.hero-link{flex:0 0 150px;min-width:150px;min-height:92px;font-size:.85rem}.container{padding:28px 14px}.grid,.gallery{grid-template-columns:1fr}.card{padding:18px}.event{padding:14px}}

.hero-cover-full{width:100%;margin:0;padding:0;overflow:hidden;background:#eef2f4}.hero-cover-full img{display:block;width:100%;height:auto;max-height:none;object-fit:contain;object-position:center;margin:0 auto}@media(max-width:680px){.hero-cover-full img{width:100%;height:auto;max-height:none}}

/* v5: หน้าปกพอดีกับพื้นที่เว็บไซต์ */
.hero-cover-fit{
  width:100%;
  margin:0;
  padding:0;
  background:#eef2f4;
  overflow:hidden;
}
.hero-cover-frame{
  width:100%;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.hero-cover-frame img{
  display:block;
  width:100%;
  height:auto;
  max-height:760px;
  object-fit:contain;
  object-position:center center;
  margin:0 auto;
}
@media (max-width:768px){
  .hero-cover-frame img{
    width:100%;
    height:auto;
    max-height:none;
    object-fit:contain;
  }
}
/* v6: ห้ามตัดคำสำคัญในหัวข้อ */
.nowrap{white-space:nowrap;display:inline-block;}