*{box-sizing:border-box}body{margin:0;font-family:Rubik,Heebo,Arial,sans-serif;background:#1b1e26;color:#1d2030}
.bar{display:flex;gap:.4rem;align-items:center;justify-content:center;padding:.4rem;background:#23262e;color:#fff;flex-wrap:wrap}
.bar a,.bar button{background:#fff;color:#23262e;border:0;border-radius:999px;padding:.4rem .9rem;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;min-height:42px}
.bar button:focus-visible,.bar a:focus-visible,.rev:focus-visible{outline:4px solid #ff8c00;outline-offset:2px}
.stage{display:flex;align-items:center;justify-content:center;padding:1rem;min-height:calc(100vh - 60px)}
.slide{display:none;width:min(1100px,96vw);aspect-ratio:16/9;background:linear-gradient(160deg,#fff8dc,#ffe9a8);border-radius:28px;padding:3vw 4vw;box-shadow:0 14px 0 #c99700,0 30px 50px rgba(0,0,0,.4);position:relative;overflow:hidden;flex-direction:column;justify-content:center}
.slide.on{display:flex}
.slide.dark{background:linear-gradient(160deg,#2b2f3d,#4b3f72);color:#fff;box-shadow:0 14px 0 #14161d,0 30px 50px rgba(0,0,0,.4)}
.slide:after{content:"";position:absolute;left:0;right:0;bottom:0;height:5%;background:#23262e;background-image:repeating-linear-gradient(90deg,#fff 0 40px,transparent 40px 75px);background-size:100% 6px;background-repeat:no-repeat;background-position:0 50%}
.slide h1{font-size:clamp(1.6rem,4.2vw,3.4rem);margin:0 0 .6rem}.slide h2{font-size:clamp(1.3rem,3vw,2.4rem);margin:0 0 .5rem}
.slide p,.slide li{font-size:clamp(1rem,2.1vw,1.7rem);line-height:1.45}
.row{display:flex;gap:3vw;align-items:center}.row .sg{width:28%;flex:none;filter:drop-shadow(0 10px 8px rgba(0,0,0,.35))}
.sgs{display:flex;gap:2vw;justify-content:center}.sgs .sg{width:18%;filter:drop-shadow(0 10px 8px rgba(0,0,0,.35))}
.grid9{display:grid;grid-template-columns:repeat(5,1fr);gap:1vw}.grid9 .sg{filter:drop-shadow(0 6px 5px rgba(0,0,0,.3))}
.rev{background:#1c5fb8;color:#fff;border:0;border-radius:14px;padding:.5rem 1rem;font:inherit;font-size:clamp(.9rem,1.8vw,1.4rem);font-weight:800;cursor:pointer}
.ans[hidden]{display:none}.ans{background:#fff;border-radius:16px;padding:.5rem 1rem;margin-top:.5rem;border-inline-start:8px solid #2b9348}
.dark .ans{color:#1d2030}
.cnt{position:absolute;top:1rem;left:1.4rem;font-weight:800;opacity:.6}
.credit{position:absolute;bottom:7%;left:1.4rem;font-size:.9rem;display:flex;align-items:center;gap:.4rem}.credit img{width:34px;height:34px;border-radius:50%;background:#fff}
@media print{@page{size:A4 landscape;margin:8mm}body{background:#fff}.bar{display:none}.stage{display:block;padding:0;min-height:0}.slide{display:flex!important;width:100%;box-shadow:none;break-after:page;border:2px solid #ccc}.rev{display:none}.ans[hidden]{display:block}}
@media (max-width:700px){.slide{aspect-ratio:auto;min-height:70vh}.row{flex-direction:column}.row .sg{width:45%}.grid9{grid-template-columns:repeat(3,1fr)}}
.home{max-width:900px;margin:2rem auto;background:#fff;border-radius:24px;padding:1.5rem}.home a.card{display:block;background:#fff8dc;border-radius:16px;padding:1rem;margin:.6rem 0;text-decoration:none;color:#1d2030;font-weight:800;font-size:1.2rem;box-shadow:0 5px 0 #e0c060}