:root{
  --cream:#FFF6E5; --cream-2:#FCEBC8; --ink:#2B2118; --ink-2:#6B5A48;
  --green:#2F7D4F; --green-2:#4FB477; --leaf:#DDF2D2;
  --orange:#FF8A3D; --orange-2:#FFD3A8; --sun:#FFC83D;
  --blue:#3A9BC9; --blue-2:#D3EEFA; --purple:#2A1E3F; --pink:#F06C9B;
  --r:28px; --shadow:0 6px 0 rgba(43,33,24,.9);
  --font-d:"ZCOOL KuaiLe","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-b:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{overflow-x:clip;scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:var(--font-b);color:var(--ink);background:var(--cream);font-size:18px;line-height:1.7;overflow-x:hidden;-webkit-tap-highlight-color:transparent}
img{max-width:100%;display:block}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
a{color:inherit;text-decoration:none}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
:focus-visible{outline:4px solid var(--blue);outline-offset:3px;border-radius:12px}

.topbar{position:fixed;inset:12px 12px auto;z-index:50;display:flex;align-items:center;gap:10px;padding:8px 10px 8px 14px;background:rgba(255,246,229,.92);backdrop-filter:blur(10px);border:3px solid var(--ink);border-radius:999px;box-shadow:0 4px 0 var(--ink)}
.topbar .back{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;border:3px solid var(--ink);background:var(--sun);font-family:var(--font-d);font-size:22px;flex:none}
.brand{display:flex;align-items:center;gap:8px;font-family:var(--font-d);font-size:20px;white-space:nowrap}
.nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{font-family:var(--font-d);font-size:16px;padding:6px 12px;border-radius:999px;white-space:nowrap}
.nav a:hover,.nav a.active{background:var(--sun)}
.lang-toggle{display:flex;gap:2px;padding:3px;border:3px solid var(--ink);border-radius:999px;background:#fff;flex:none}
.lang-toggle button{font-family:var(--font-d);font-size:14px;padding:4px 10px;border-radius:999px}
.lang-toggle button.on{background:var(--sun)}
.sound-toggle{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--green-2);color:#fff;border:3px solid var(--ink);flex:none}
.sound-toggle[aria-pressed="false"]{background:#bbb}

.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-d);font-size:20px;padding:10px 22px;background:#fff;border:3px solid var(--ink);border-radius:999px;box-shadow:0 5px 0 var(--ink);transition:transform .12s,box-shadow .12s}
.btn:hover{transform:translateY(-2px);box-shadow:0 7px 0 var(--ink)}
.btn:active{transform:translateY(4px);box-shadow:0 1px 0 var(--ink)}
.btn-big{font-size:24px;padding:14px 28px;background:var(--orange);color:#fff;text-shadow:0 2px 0 rgba(0,0,0,.25)}
.btn-sun{background:var(--sun);color:var(--ink);text-shadow:none}
.btn-ghost{background:rgba(255,255,255,.9)}
.btn-round{width:64px;height:64px;padding:0;justify-content:center;border-radius:50%;background:var(--sun)}
.speak.talking{background:var(--green-2);color:#fff}

.hero{position:relative;min-height:100svh;overflow:hidden;display:grid;place-items:center;perspective:1200px}
.hero-scene{position:absolute;inset:0;z-index:0}
.layer{position:absolute;will-change:transform;transition:transform .25s ease-out}
.l-bg{inset:-6%}
.l-bg img{width:100%;height:100%;object-fit:cover}
.l-bg::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 50% 40%,rgba(255,246,229,.55),rgba(255,246,229,0) 55%),linear-gradient(transparent 65%,var(--cream))}
.hero-copy{position:relative;z-index:5;text-align:center;padding:120px 20px 28vh;max-width:820px}
.hero-kicker{display:inline-block;font-family:var(--font-d);font-size:22px;color:var(--green);background:rgba(255,246,229,.92);border:3px solid var(--ink);border-radius:999px;padding:2px 18px;margin-bottom:14px}
.title-3d{font-family:var(--font-d);font-weight:400;font-size:clamp(52px,11vw,130px);line-height:1.05;color:var(--sun);letter-spacing:.04em;-webkit-text-stroke:4px var(--ink);paint-order:stroke fill;
  text-shadow:0 2px 0 #E89A1C,0 4px 0 #E89A1C,0 6px 0 #D9850F,0 8px 0 #C9760A,0 10px 0 var(--ink),0 18px 24px rgba(0,0,0,.25);
  animation:titleIn 1s cubic-bezier(.2,1.6,.4,1) both}
@keyframes titleIn{from{transform:scale(.4) rotateX(60deg);opacity:0}to{transform:none;opacity:1}}
.hero-sub{font-size:20px;margin:16px auto 22px;max-width:30em;font-weight:600;text-shadow:0 1px 0 #fff,0 0 14px #fff}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hint{display:inline-block;margin-top:14px;font-size:15px;font-weight:700;background:rgba(255,246,229,.92);border-radius:999px;padding:4px 16px}

.bob{animation:bob 3.2s ease-in-out infinite}
.bob.d2{animation-delay:-1.4s;animation-duration:2.8s}
@keyframes bob{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-12px) rotate(-1.5deg)}}
.sway{transform-origin:50% 100%;animation:sway 5s ease-in-out infinite}
@keyframes sway{0%,100%{transform:rotate(-2deg)}50%{transform:rotate(2deg)}}
.fly{animation:fly 18s linear infinite}
@keyframes fly{0%{transform:translate(-20vw,0)}50%{transform:translate(60vw,-3vh)}100%{transform:translate(120vw,0)}}

.sec{position:relative;padding:clamp(64px,9vw,110px) clamp(16px,4vw,48px)}
.sec-head{text-align:center;max-width:760px;margin:0 auto 36px}
.sec-head h2{font-family:var(--font-d);font-weight:400;font-size:clamp(36px,5.5vw,56px);line-height:1.15;margin:12px 0 10px}
.sec-head p{font-size:18px;color:var(--ink-2)}
.sec-head.light h2{color:#fff}.sec-head.light p{color:#E6DAF5}
.chip{display:inline-block;font-family:var(--font-d);font-size:17px;padding:4px 16px;border-radius:999px;background:var(--green-2);color:#fff;border:3px solid var(--ink)}
.chip-orange{background:var(--orange)}.chip-blue{background:var(--blue)}.chip-purple{background:#8E6CEF}.chip-pink{background:var(--pink)}.chip-sun{background:var(--sun);color:var(--ink)}

.panel,.card-box{background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink)}
.flip-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:18px}
.flip-chip{perspective:800px;min-width:min(100%,220px);height:88px;border:0;background:transparent;padding:0}
.flip-chip .in{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.3,1.4,.5,1)}
.flip-chip.on .in{transform:rotateY(180deg)}
.flip-chip .f,.flip-chip .b{position:absolute;inset:0;backface-visibility:hidden;border:3px solid var(--ink);border-radius:20px;display:grid;place-items:center;padding:10px 14px;font-family:var(--font-d);font-size:18px;box-shadow:0 5px 0 var(--ink);text-align:center}
.flip-chip .f{background:var(--sun)}
.flip-chip .b{background:#fff;transform:rotateY(180deg);font-family:var(--font-b);font-size:15px;font-weight:700;line-height:1.35}

.filters{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.filter{font-family:var(--font-d);font-size:18px;padding:8px 18px;border-radius:999px;border:3px solid var(--ink);background:#fff}
.filter.on{background:var(--ink);color:#fff}
.cards{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:24px}
.card{perspective:1100px;height:380px}
.card.hide{display:none}
.card-in{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.3,1.4,.5,1)}
.card.flip .card-in{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 8px 0 var(--ink);overflow:hidden;cursor:pointer}
.front{display:flex;flex-direction:column;background:var(--c,#FFD3A8)}
.front .pic{flex:1;display:grid;place-items:center;padding:16px;background:radial-gradient(circle at 50% 60%,rgba(255,255,255,.75),rgba(255,255,255,0) 65%)}
.front .pic img{max-height:220px;object-fit:contain;filter:drop-shadow(0 12px 10px rgba(0,0,0,.22));transition:transform .3s}
.card:hover .front .pic img{transform:scale(1.07) rotate(-2deg)}
.front .nm{background:#fff;border-top:4px solid var(--ink);padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.front .nm b{font-family:var(--font-d);font-weight:400;font-size:26px;line-height:1.1}
.front .nm small{display:block;font-size:12px;color:var(--ink-2);font-weight:600}
.tag{font-size:13px;font-weight:700;padding:3px 10px;border-radius:999px;border:2px solid var(--ink);white-space:nowrap;background:#fff}
.back{transform:rotateY(180deg);background:#fff;padding:18px;display:flex;flex-direction:column;gap:10px}
.back h3{font-family:var(--font-d);font-weight:400;font-size:26px}
.facts{display:grid;gap:8px;font-size:15px;line-height:1.45}
.facts div{display:grid;grid-template-columns:72px 1fr;gap:8px}
.facts dt{font-weight:800;color:var(--green)}

.spot{position:absolute;transform:translate(-50%,-50%);width:52px;height:52px;border-radius:50%;background:var(--sun);border:4px solid var(--ink);font-family:var(--font-d);font-size:24px;display:grid;place-items:center;box-shadow:0 5px 0 var(--ink);z-index:3}
.spot::after{content:"";position:absolute;inset:-10px;border-radius:50%;border:3px solid #fff;animation:ping 1.8s ease-out infinite}
.spot.seen{background:var(--green-2);color:#fff}
.spot.seen::after{animation:none;opacity:0}
.spot.cur{background:var(--orange);color:#fff}
@keyframes ping{from{transform:scale(.6);opacity:1}to{transform:scale(1.4);opacity:0}}

.game-tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:24px}
.gtab{display:flex;align-items:center;gap:8px;font-family:var(--font-d);font-size:20px;padding:10px 18px;border:3px solid var(--ink);border-radius:20px;background:#fff;box-shadow:0 5px 0 var(--ink)}
.gtab.on{background:var(--pink);color:#fff;transform:translateY(3px);box-shadow:0 2px 0 var(--ink)}
.game{display:none;max-width:900px;margin:0 auto;background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);padding:22px}
.game.on{display:block;animation:pop .4s cubic-bezier(.2,1.5,.4,1)}
@keyframes pop{from{transform:scale(.92)}to{transform:none}}
.g-tip{font-size:18px;font-weight:700;text-align:center;margin-bottom:14px}
.g-row{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;margin-top:16px}
.score{font-family:var(--font-d);font-size:22px}
.score b{color:var(--orange);font-size:28px;font-family:var(--font-b);font-weight:800}

.foot{padding:48px 20px 80px;text-align:center;background:var(--cream-2);border-top:4px solid var(--ink)}
.foot p{font-family:var(--font-d);font-size:22px}
.foot .small{font-family:var(--font-b);font-size:14px;color:var(--ink-2);margin-top:8px;max-width:40em;margin-inline:auto}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120%);background:var(--ink);color:#fff;font-family:var(--font-d);padding:10px 22px;border-radius:999px;z-index:80;transition:transform .3s}
.toast.show{transform:translateX(-50%) translateY(0)}
.confetti{position:fixed;top:-10px;width:10px;height:14px;border-radius:3px;z-index:90;pointer-events:none}

html.lang-en .zh{display:none!important}
html.lang-zh .en,html:not(.lang-en) .en{display:none!important}
html.lang-en .en{display:initial!important}
html.lang-zh .zh,html:not(.lang-en) .zh{display:initial!important}
span.en,span.zh,b.en,b.zh,small.en,small.zh{display:inline}
html.lang-en span.en,html.lang-en b.en,html.lang-en small.en{display:inline!important}
html.lang-en span.zh,html.lang-en b.zh,html.lang-en small.zh{display:none!important}
html:not(.lang-en) span.zh,html:not(.lang-en) b.zh,html:not(.lang-en) small.zh{display:inline!important}
html:not(.lang-en) span.en,html:not(.lang-en) b.en,html:not(.lang-en) small.en{display:none!important}

@media (max-width:820px){
  .nav{display:none}
  .hero-copy{padding-bottom:22vh}
  .title-3d{font-size:clamp(44px,12vw,72px);-webkit-text-stroke:3px var(--ink)}
}

.l-ant{left:4%;bottom:6%;width:min(24vw,280px)}
.l-bee{right:6%;top:10%;width:min(18vw,200px)}
.l-bfly{right:20%;bottom:14%;width:min(20vw,230px)}
.l-ant img,.l-bee img,.l-bfly img{filter:drop-shadow(0 14px 14px rgba(0,0,0,.22))}
.sec-powers{background:linear-gradient(var(--cream),var(--leaf))}
.sec-cards{background:var(--leaf)}
.sec-hive{background:linear-gradient(var(--leaf),#FFF0C8)}
.sec-life{background:linear-gradient(#FFF0C8,#FFE3EC)}
.sec-games{background:linear-gradient(#FFE3EC,var(--cream))}
.power-grid{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.power{background:#fff;border:4px solid var(--ink);border-radius:24px;box-shadow:0 8px 0 var(--ink);padding:18px;text-align:center;cursor:pointer;transition:transform .15s}
.power:hover,.power.on{transform:translateY(-4px);background:var(--sun)}
.power img{width:120px;height:120px;object-fit:contain;margin:0 auto 8px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.15))}
.power h3{font-family:var(--font-d);font-size:26px}
.life{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.life .st{background:#fff;border:4px solid var(--ink);border-radius:22px;box-shadow:0 8px 0 var(--ink);padding:16px;text-align:center}
.life .st b{font-family:var(--font-d);font-size:22px;display:block;margin:8px 0}
.hive-stage{max-width:800px;margin:0 auto;position:relative;aspect-ratio:16/10;border:4px solid var(--ink);border-radius:var(--r);overflow:hidden;box-shadow:0 10px 0 var(--ink);background:linear-gradient(#FFF6E5,#FFE08A)}
.hive-stage img{position:absolute;filter:drop-shadow(0 10px 8px rgba(0,0,0,.2))}
@media(max-width:820px){.life{grid-template-columns:1fr 1fr}}

/* extra polish */
.panel h3,.card-box h3{font-family:var(--font-d);font-weight:400}
.speak svg{display:inline-block;vertical-align:middle}
.l-char img{filter:drop-shadow(0 14px 14px rgba(0,0,0,.22))}
.sec .panel{background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink)}
.two-col{display:grid;grid-template-columns:1.05fr 1fr;gap:28px;align-items:center;max-width:1100px;margin:0 auto}
@media(max-width:820px){.two-col{grid-template-columns:1fr}}
.icon-blob{width:120px;height:120px;border-radius:50%;border:4px solid var(--ink);display:grid;place-items:center;background:var(--sun);margin:0 auto 10px;box-shadow:0 6px 0 var(--ink);font-size:48px}


.card{height:400px}
.front .pic img{max-height:240px;object-fit:contain;filter:drop-shadow(0 12px 10px rgba(0,0,0,.22));transition:transform .3s}
.card:hover .front .pic img{transform:scale(1.07) rotate(-2deg)}
.front .nm b{font-family:var(--font-d);font-weight:400;font-size:28px;line-height:1.1}
.front .nm small{display:block;font-size:13px;color:var(--ink-2);font-weight:600}
.back h3{font-family:var(--font-d);font-weight:400;font-size:26px}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}
@media (max-width:860px){
  .nav{display:none}
  .sound-toggle{margin-left:auto}
  .hero-copy{padding-bottom:36vh}
}
@media (max-width:560px){
  body{font-size:17px}
  .btn-big{font-size:22px;padding:12px 24px}
  .card{height:380px}
  .game{padding:18px 14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

.sec-powers{background:linear-gradient(#DDF2D2,var(--cream))}
.sec-cards{background:linear-gradient(var(--cream),#FFF0C8)}
.sec-hive{background:linear-gradient(#FFE9A8,#FFE0C7)}
.sec-life{background:linear-gradient(#E0D6FA,var(--cream))}
.sec-legs{background:linear-gradient(#DDF2D2,#E8F7FF)}
.sec-night{background:linear-gradient(#2A2A44,#E0D6FA)}
.sec-observe{background:linear-gradient(var(--cream),#DDF2D2)}
.sec-facts,.sec-ask{background:linear-gradient(#FFF0C8,var(--cream))}
.sec-team{background:linear-gradient(#FFE0C7,var(--cream))}
.sec-jump{background:linear-gradient(#DDF2D2,#FFF0C8)}
.sec-games{background:linear-gradient(#FFE3EC,#DDF2D2)}
.l-bee{left:8%;bottom:10%;width:min(16vw,180px)}
.l-butterfly{right:10%;top:14%;width:min(18vw,200px)}
.l-ladybug{right:24%;bottom:16%;width:min(12vw,140px)}


/* ===== enrichment skins ===== */
.panel.pad{padding:22px}
.panel-pic{width:min(100%,280px);margin:0 auto;filter:drop-shadow(0 14px 12px rgba(0,0,0,.2))}
.check-list{list-style:none;display:grid;gap:8px;margin:10px 0;font-weight:700}
.two-col{display:grid;grid-template-columns:1.05fr 1fr;gap:28px;align-items:center;max-width:1100px;margin:0 auto}
.pair-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:22px}
.pair-card{background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);padding:20px;text-align:center}
.pair-card img{width:min(100%,180px);margin:0 auto 12px;filter:drop-shadow(0 12px 10px rgba(0,0,0,.2))}
.pair-card h3{font-family:var(--font-d);font-size:26px;margin-bottom:8px}
.icon-row{max-width:800px;margin:28px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:center}
.icon-row img{width:80px;margin:0 auto 6px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.15))}
.icon-row figcaption{font-family:var(--font-d);font-size:18px}
.day-story{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.day-card{background:#fff;border:4px solid var(--ink);border-radius:22px;box-shadow:0 8px 0 var(--ink);padding:16px;text-align:center}
.day-card img{width:100px;margin:10px auto;filter:drop-shadow(0 8px 8px rgba(0,0,0,.18))}
.day-card h3{font-family:var(--font-d);font-size:22px;margin-bottom:6px}
.day-card p{font-size:14px;line-height:1.45}
.safe-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.safe-card{background:#fff;border:4px solid var(--ink);border-radius:22px;box-shadow:0 8px 0 var(--ink);padding:16px;text-align:center}
.safe-card img{width:90px;margin:0 auto 8px}
.safe-card h3{font-family:var(--font-d);font-size:22px;margin-bottom:6px}
.safe-card p{font-size:14px}
.facts-wide{max-width:1100px;margin:0 auto}
.story-strip{max-width:1100px;margin:36px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.story-beat{background:#fff;border:4px solid var(--ink);border-radius:22px;box-shadow:0 8px 0 var(--ink);padding:14px;text-align:center}
.story-beat img{width:min(100%,110px);margin:0 auto 8px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.18))}
.story-beat p{font-size:14px;font-weight:700;line-height:1.4}
.foot-pic{width:90px;margin:0 auto 12px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.15))}
.quiz-a{display:grid;gap:10px;max-width:420px;margin:0 auto}
.quiz-a button{padding:12px;border:3px solid var(--ink);border-radius:16px;background:#fff;font-weight:700;box-shadow:0 4px 0 var(--ink);font-family:inherit}
.quiz-a button:active{transform:translateY(3px);box-shadow:0 1px 0 var(--ink)}
.mem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:520px;margin:0 auto}
.pond{position:relative;height:280px;border:4px solid var(--ink);border-radius:var(--r);overflow:hidden;background:linear-gradient(#7EC8E3,#1A4A6E);box-shadow:0 10px 0 var(--ink);margin:0 auto;max-width:640px}
.sort-show{text-align:center;min-height:160px;display:grid;place-items:center}
.sort-show img{width:140px;filter:drop-shadow(0 12px 10px rgba(0,0,0,.2))}
.basket{padding:12px 18px;border:4px solid var(--ink);border-radius:18px;background:var(--cream);font-family:var(--font-d);font-size:20px;box-shadow:0 6px 0 var(--ink);cursor:pointer}
.basket:active{transform:translateY(4px);box-shadow:0 2px 0 var(--ink)}
.wonder-grid,.power-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px}
.wonder,.power{background:#fff;border:4px solid var(--ink);border-radius:22px;box-shadow:0 8px 0 var(--ink);padding:14px;text-align:center;cursor:pointer;transition:transform .15s}
.wonder:hover,.wonder.on,.power:hover,.power.on{transform:translateY(-4px);background:var(--sun)}
.wonder img,.power img{width:90px;margin:0 auto 8px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.18))}
.wonder b,.power b{font-family:var(--font-d);font-size:20px;display:block}
.tide-box{position:relative;height:220px;border:4px solid var(--ink);border-radius:var(--r);overflow:hidden;background:linear-gradient(#FFE9A8,#7EC8E3);box-shadow:0 10px 0 var(--ink)}
.tide-water{position:absolute;left:0;right:0;bottom:0;height:40%;background:linear-gradient(#3A9BC9,#1A4A6E);transition:height .6s;border-top:4px solid var(--ink)}
.life{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin:18px auto;max-width:720px}
.lstep,.st{display:flex;align-items:center;gap:8px;padding:8px 14px;border:3px solid var(--ink);border-radius:999px;background:#fff;font-family:var(--font-d);font-size:18px;cursor:pointer}
.lstep.on,.st.on{background:var(--green);color:#fff}
.lstep b,.st b{width:28px;height:28px;border-radius:50%;border:2px solid var(--ink);display:grid;place-items:center;background:var(--sun);color:var(--ink);font-size:14px}
.life-stage{max-width:960px;margin:0 auto;display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:center}
.life-art{background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);min-height:280px;display:grid;place-items:center;padding:20px}
.life-art img{width:min(70%,220px);filter:drop-shadow(0 14px 12px rgba(0,0,0,.2));transition:transform .35s}
.hive-stage{position:relative;background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);min-height:280px;display:grid;place-items:center;overflow:hidden}
.hive-stage img{width:min(50%,180px);filter:drop-shadow(0 12px 10px rgba(0,0,0,.2))}
#dancer{position:absolute;width:90px;transition:transform .4s}
.glow-stage{position:relative;background:linear-gradient(#1A2A44,#3A4A62);border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);min-height:260px;display:grid;place-items:center;overflow:hidden}
.glow-stage img{width:140px;filter:drop-shadow(0 0 20px #FFC83D);transition:filter .4s,transform .4s}
.glow-stage.on img{filter:drop-shadow(0 0 40px #FFE9A8) brightness(1.2);transform:scale(1.08)}
.layers-stage{display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:center;max-width:1000px;margin:0 auto}
.layers-art{position:relative;background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);min-height:320px;display:grid;place-items:center;overflow:hidden}
.layers-art img{width:min(80%,260px);filter:drop-shadow(0 14px 12px rgba(0,0,0,.2))}
.layers-alt{display:none}
.layers-art.show-cut .layers-alt{display:block}
.layers-art.show-cut #earthPic{display:none}
.layer-list{display:grid;gap:10px}
.layer-btn{padding:12px 16px;border:3px solid var(--ink);border-radius:16px;background:#fff;font-family:var(--font-d);font-size:20px;text-align:left;box-shadow:0 4px 0 var(--ink);cursor:pointer}
.layer-btn.on{background:var(--orange);color:#fff}
.erupt-stage{max-width:900px;margin:0 auto;position:relative;background:linear-gradient(#2A1A14,#5A3A28);border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);min-height:340px;display:grid;place-items:center;overflow:hidden;padding:20px}
.erupt-stage img{width:min(50%,220px);filter:drop-shadow(0 14px 12px rgba(0,0,0,.3));transition:transform .4s,opacity .4s}
.erupt-card{background:rgba(255,246,229,.95);border:4px solid var(--ink);border-radius:22px;padding:16px;max-width:320px;text-align:center;box-shadow:0 8px 0 var(--ink)}
.erupt-card h3{font-family:var(--font-d);font-size:24px;margin:6px 0}
.quake-demo{background:#fff;border:4px solid var(--ink);border-radius:var(--r);box-shadow:0 10px 0 var(--ink);padding:24px;text-align:center;cursor:pointer}
.quake-demo img{width:160px;margin:0 auto 10px;transition:transform .15s}
.quake-demo.shake img{animation:shake .5s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px) rotate(-2deg)}75%{transform:translateX(8px) rotate(2deg)}}
.breathe-stage{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:center}
.breathe-stage img{width:min(70%,220px);margin:0 auto;filter:drop-shadow(0 14px 12px rgba(0,0,0,.2));transition:transform .8s}
.sense-pics{max-width:900px;margin:28px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:center}
.sense-pics img{width:90px;margin:0 auto 6px;filter:drop-shadow(0 8px 8px rgba(0,0,0,.15))}
.sense-pics figcaption{font-family:var(--font-d);font-size:18px}
.food-chain{max-width:900px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px}
.food-chain .fc{background:#fff;border:4px solid var(--ink);border-radius:20px;padding:12px;text-align:center;box-shadow:0 6px 0 var(--ink);width:140px}
.food-chain img{width:80px;margin:0 auto 6px}
.food-chain .arrow{font-size:28px;font-family:var(--font-d)}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media(max-width:820px){
  .two-col,.pair-grid,.life-stage,.layers-stage,.breathe-stage,.day-story,.safe-grid,.icon-row,.sense-pics,.story-strip{grid-template-columns:1fr}
  .day-story,.safe-grid,.icon-row,.sense-pics,.story-strip{grid-template-columns:repeat(2,1fr)}
  .nav{display:none}
}
@media(max-width:560px){
  .day-story,.safe-grid,.story-strip{grid-template-columns:1fr}
  .mem-grid{grid-template-columns:repeat(3,1fr)}
}