*{box-sizing:border-box}
:root{--p:#6A3FC9;--p2:#9B7BEA;--lav:#F1ECFF;--mint:#E6F7EF;--mintd:#2E9E6E;--sky:#E7F1FF;--skyd:#3D7BD9;--peach:#FFF0E3;--peachd:#D9732A;--pink:#FDEBF3;--yel:#FFF6CC;--navy:#2E3A75;--ink:#2B2540;--grey:#6B6880;--bg:#FCFBFF;
--d1:#3BAF7E;--d1p:#7FD3B2;--d2:#7A55DB;--d2p:#B9A3F2;--d3:#2E3A75;--d3p:#6E7BB8}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:"Heebo","Rubik","Assistant","Arial",sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--skyd)}
button{font-family:inherit;cursor:pointer}
img{max-width:100%}
/* ---------- home ---------- */
.home{max-width:1180px;margin:0 auto;padding:16px 16px 8px}
.hhead{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.who{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--p);font-size:18px}
.who img{width:46px;height:46px;border-radius:50%}
.pillnav{display:flex;gap:8px;flex-wrap:wrap}
.pillnav a{background:var(--lav);color:var(--p);text-decoration:none;font-weight:700;padding:9px 14px;border-radius:999px;font-size:15px}
.hero{margin:18px 0 8px;background:linear-gradient(135deg,#F1ECFF,#E6F7EF 60%,#E7F1FF);border-radius:26px;padding:22px 20px;position:relative;overflow:hidden}
.hero h1{margin:0 0 6px;color:var(--p);font-size:clamp(26px,4.4vw,44px);line-height:1.15}
.hero p{margin:4px 0;font-size:clamp(15px,2vw,19px);line-height:1.5}
.depthrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.depthrow span{color:#fff;font-weight:800;padding:7px 14px;border-radius:999px;font-size:15px}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:18px 0}
.tile{background:#fff;border:2px solid #E9E3FA;border-radius:22px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 4px 14px rgba(106,63,201,.07)}
.tile .ph{aspect-ratio:16/9;background:#eee center/cover no-repeat;position:relative}
.tile .em{position:absolute;bottom:8px;right:8px;background:#fff;border-radius:50%;width:46px;height:46px;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.tile .bd{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.tile h3{margin:0;color:var(--p);font-size:20px;line-height:1.25}
.tile .sub{color:var(--grey);font-size:15px;line-height:1.4}
.tile .btns{display:flex;gap:8px;margin-top:auto;padding-top:8px}
.tile .btns a{flex:1;text-align:center;text-decoration:none;font-weight:800;border-radius:16px;padding:12px 8px;font-size:16px}
.bplay{background:var(--p);color:#fff}
.bppt{background:var(--peach);color:var(--peachd);border:2px solid #F5C9A3}
.howto{background:#fff;border:2px dashed #D9D2F2;border-radius:20px;padding:14px 16px;margin:8px 0 18px;line-height:1.6;font-size:16px}
.howto b{color:var(--p)}
.credit{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;padding:14px 10px 22px;color:var(--grey);font-size:15px;text-align:center}
.credit img{width:40px;height:40px;border-radius:50%}
.credit .sep{opacity:.5}
/* ---------- deck ---------- */
.deck{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--bg);overflow:hidden}
.band{position:absolute;left:0;top:0;bottom:0;width:30px;display:flex;flex-direction:column;z-index:2}
.band div{flex:1;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:13px;writing-mode:vertical-rl;transform:rotate(180deg);letter-spacing:.5px;transition:background .3s}
.dtop{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 14px 8px 44px;border-bottom:2px solid #EAE4FA}
.dtop .who{font-size:16px}.dtop .who img{width:38px;height:38px}
.dtop .tp{background:var(--lav);color:var(--p);font-weight:700;border-radius:999px;padding:6px 12px;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw}
.ib{border:0;background:var(--lav);color:var(--p);font-weight:800;border-radius:14px;min-width:46px;height:46px;font-size:20px;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.stage{flex:1;overflow:auto;padding:14px 18px 10px 46px;-webkit-overflow-scrolling:touch}
.sl{max-width:1400px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;gap:clamp(8px,1.4vmin,16px);animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}
.tag{align-self:flex-start;background:var(--p2);color:#fff;font-weight:800;border-radius:999px;padding:6px 16px;font-size:clamp(14px,2.3vmin,26px)}
.ttl{margin:0;color:var(--p);font-size:clamp(24px,5.4vmin,62px);line-height:1.2}
.big{font-size:clamp(20px,4.6vmin,52px);line-height:1.4;font-weight:800}
.txt{font-size:clamp(17px,3.2vmin,36px);line-height:1.55}
.sm{font-size:clamp(15px,2.4vmin,26px);line-height:1.5;color:var(--grey)}
.box{border-radius:22px;padding:clamp(12px,2vmin,24px)}
.row{display:grid;gap:clamp(10px,1.6vmin,18px)}
.c2{grid-template-columns:2fr 1fr}.c3{grid-template-columns:repeat(3,1fr)}.c2e{grid-template-columns:1fr 1fr}
.mint{background:var(--mint)}.lav{background:var(--lav)}.sky{background:var(--sky)}.peach{background:var(--peach)}.pink{background:var(--pink)}.yel{background:var(--yel)}.white{background:#fff;border:2px solid #E3DCF7}
h4{margin:0 0 8px;font-size:clamp(18px,3.6vmin,40px);color:var(--p)}
ul.g{margin:0;padding:0 22px 0 0}ul.g li{margin:6px 0}
/* title slide */
.tslide{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(12px,2.4vmin,30px);align-items:center;flex:1}
.tslide .pic{border-radius:26px;overflow:hidden;border:3px solid #E3DCF7;box-shadow:0 8px 24px rgba(106,63,201,.12)}
.tslide .pic img{display:block;width:100%}
.tslide .em{font-size:clamp(44px,9vmin,96px);line-height:1}
.tslide h1{margin:6px 0;color:var(--p);font-size:clamp(30px,6.6vmin,74px);line-height:1.1}
.chip{display:inline-block;border-radius:999px;padding:7px 16px;font-weight:800;font-size:clamp(14px,2vmin,20px)}
.chipm{background:var(--mint);color:var(--mintd)}
.dchips{display:flex;gap:10px;flex-wrap:wrap}
.dchips span{color:#fff;font-weight:800;border-radius:999px;padding:9px 18px;font-size:clamp(15px,2.2vmin,22px)}
/* vocab flip */
.vgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(10px,1.8vmin,20px)}
.vc{border:2px solid #E3DCF7;border-radius:22px;padding:clamp(14px,2.4vmin,26px);text-align:center;min-height:clamp(110px,24vmin,260px);display:flex;flex-direction:column;justify-content:center;gap:8px;cursor:pointer;user-select:none;transition:transform .2s}
.vc:active{transform:scale(.98)}
.vc b{color:var(--p);font-size:clamp(22px,5.4vmin,58px)}
.vc .m{font-size:clamp(16px,3.2vmin,34px)}
.vc .m.hid{color:var(--grey);font-size:clamp(14px,2vmin,19px)}
/* strat */
.scol h4{text-align:center}
.si{margin:clamp(8px,2.2vmin,24px) 0}.si b{font-size:clamp(17px,3.3vmin,36px)}.si div{color:var(--grey);font-size:clamp(14px,2.7vmin,30px)}
/* mcq */
.q{font-weight:800;font-size:clamp(18px,3.8vmin,42px);margin-bottom:10px}
.opts{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.opt{border:2px solid #D9D2F2;background:#fff;border-radius:18px;padding:clamp(10px,2vmin,22px);font-size:clamp(16px,3.1vmin,34px);text-align:right;color:var(--ink);min-height:56px;transition:all .2s}
.opt .l{color:var(--p);font-weight:900;margin-left:6px}
.opt.ok{background:#D8F5E6;border-color:var(--d1)}
.opt.no{background:#FFE3E3;border-color:#E57373}
.fb{margin-top:8px;font-weight:700;font-size:clamp(15px,2.8vmin,30px);min-height:1.2em}
.dhead{color:#fff;border-radius:999px;padding:10px 20px;font-size:clamp(15px,2.8vmin,30px)}
.reveal{border:0;background:var(--p);color:#fff;font-weight:800;border-radius:16px;padding:12px 18px;font-size:clamp(15px,2.2vmin,22px);margin-top:10px}
.ans{margin-top:10px;background:#fff;border-radius:14px;padding:10px 14px;font-weight:700;font-size:clamp(16px,2.4vmin,24px)}
/* tf */
.tf{display:flex;gap:12px;align-items:stretch;cursor:pointer}
.tf .st{flex:1;border-radius:20px;padding:clamp(12px,2.4vmin,26px);font-size:clamp(17px,3.5vmin,38px)}
.tf .vt{width:clamp(70px,12vmin,130px);border-radius:20px;background:#fff;border:2px solid #D9D2F2;display:flex;align-items:center;justify-content:center;font-size:clamp(20px,3.4vmin,36px);font-weight:900}
.tf.ok .vt{background:#D8F5E6;border-color:var(--d1)}.tf.no .vt{background:#FFE3E3;border-color:#E57373}
/* sort */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.sc{border:2px solid var(--p2);background:#fff;border-radius:999px;padding:clamp(8px,1.6vmin,16px) clamp(14px,2.4vmin,26px);font-weight:800;font-size:clamp(15px,3vmin,32px);color:var(--ink)}
.bins{display:grid;gap:12px;flex:1}
.bin{border-radius:22px;padding:14px;min-height:clamp(120px,22vmin,280px);border:2px solid #D9D2F2}
.bin h4{text-align:center}
.bin .sc{display:inline-block;margin:4px;border-color:var(--d1);animation:fade .3s}
/* disc */
.dq{display:flex;gap:14px;align-items:center;border-radius:24px;padding:clamp(12px,2.6vmin,28px);font-weight:800;font-size:clamp(18px,3.8vmin,42px);transition:all .3s}
.dq .n{flex:none;width:clamp(44px,7vmin,70px);height:clamp(44px,7vmin,70px);border-radius:50%;color:#fff;display:flex;align-items:center;justify-content:center;font-size:clamp(20px,3.4vmin,34px)}
.dq.hl{outline:4px solid var(--p);transform:scale(1.02)}
.dq.dim{opacity:.35}
/* tool */
.parts{display:grid;gap:10px}
.part{border-radius:20px;text-align:center;padding:clamp(10px,2vmin,22px) 8px;border:2px solid #E3DCF7;cursor:pointer}
.part .i{font-size:clamp(28px,7vmin,76px)}.part b{display:block;color:var(--p);font-size:clamp(15px,3vmin,32px);margin-top:6px}
.part.on{outline:4px solid var(--p)}
/* adapt */
.pics{display:flex;gap:12px;flex-wrap:wrap;margin-top:10px}
.pc{background:#fff;border:2px solid #F5C9A3;border-radius:20px;width:clamp(96px,16vmin,170px);padding:10px;text-align:center;font-weight:800;font-size:clamp(15px,2.3vmin,22px)}
.pc .i{font-size:clamp(34px,7vmin,70px);display:block}
.pc.ok{background:#D8F5E6;border-color:var(--d1)}.pc.no{background:#FFE3E3;border-color:#E57373}
.gl{display:flex;gap:8px;align-items:baseline;flex-wrap:wrap;margin:6px 0;font-size:clamp(17px,3.2vmin,34px)}.gl b{color:var(--p)}.gl span{color:var(--grey);direction:ltr;unicode-bidi:isolate;font-size:.85em}
/* exit */
.ticket{border:3px dashed var(--p2);border-radius:28px;padding:clamp(14px,2.6vmin,30px);background:#fff;max-width:1000px;width:100%;margin:0 auto}
.ticket .line{border-bottom:2px solid #C9BEEF;height:clamp(30px,6vmin,60px);margin-bottom:14px}
.ticket p{margin:10px 0 0;font-weight:800;font-size:clamp(18px,3.6vmin,40px)}
/* timer */
.timer{position:fixed;top:66px;left:44px;background:var(--navy);color:#fff;font-weight:900;font-size:clamp(22px,4vmin,40px);border-radius:16px;padding:6px 16px;z-index:5;cursor:pointer}
.timer.done{background:#E57373}
/* nav */
.dnav{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 14px 8px 44px;border-top:2px solid #EAE4FA;background:#fff}
.nb{border:0;border-radius:18px;font-weight:900;font-size:clamp(17px,2.4vmin,22px);height:56px;padding:0 22px;background:var(--p);color:#fff}
.nb.prev{background:var(--lav);color:var(--p)}
.nb:disabled{opacity:.35}
.mid{display:flex;align-items:center;gap:8px}
.cnt{font-weight:800;color:var(--grey);min-width:62px;text-align:center;font-size:17px}
.dots{display:flex;gap:4px;justify-content:center;padding:0 46px 6px;flex-wrap:wrap}
.dots i{width:9px;height:9px;border-radius:50%;background:#DDD5F5;cursor:pointer}.dots i.on{background:var(--p);width:22px;border-radius:6px}
.notes{position:fixed;bottom:84px;right:14px;left:44px;max-width:760px;margin:0 auto;background:#FFFBEA;border:2px solid #F2DE8A;border-radius:18px;padding:14px 16px;font-size:17px;line-height:1.55;z-index:6;box-shadow:0 8px 30px rgba(0,0,0,.15)}
.notes b{color:var(--p)}
.dcred{font-size:12px;color:var(--grey);text-align:center;padding:2px 0 6px;background:#fff}
.dcred a{color:var(--grey)}
@media (max-width:760px){
 .tslide,.c2,.c3,.c2e{grid-template-columns:1fr}
 .vgrid{grid-template-columns:1fr 1fr}
 .opts{grid-template-columns:1fr}
 .parts{grid-template-columns:repeat(2,1fr)!important}
 .bins{grid-template-columns:1fr!important}
 .band{width:22px}.band div{font-size:10px}
 .stage{padding:12px 12px 10px 32px}
 .dtop{padding:6px 10px 6px 30px}.dtop .who span{display:none}
 .dnav{padding:6px 8px 6px 30px}
 .nb{padding:0 14px;height:52px}
 .ib{min-width:42px;height:42px;font-size:18px}
 .dots{padding:0 30px 6px}
 .timer{left:30px;top:60px}
 .notes{left:30px;right:8px;bottom:78px}
}
@media (max-width:380px){.vgrid{grid-template-columns:1fr}.mid .ib.hide-s{display:none}}

.nb{white-space:nowrap}
.compact .q{font-size:clamp(16px,2.9vmin,32px);margin-bottom:6px}
.compact .opt{font-size:clamp(14px,2.3vmin,26px);padding:clamp(6px,1.2vmin,14px);min-height:44px}
.compact .fb{font-size:clamp(14px,2.2vmin,24px);margin-top:4px}
.compact.box{padding:clamp(10px,1.5vmin,18px)}
@media (max-width:760px){.nb{padding:0 12px;font-size:16px}.mid{gap:5px}}

img.cover{display:block;width:100%;max-width:900px;height:auto;margin:14px auto 10px;border-radius:18px;box-shadow:0 6px 18px rgba(0,0,0,.15)}
@media print{img.cover{display:none!important}}