:root{--ink:#153c46;--paper:#fff5d8;--orange:#e4613e;--mint:#326e68;--blue:#bee1e7;--gold:#efbd50}*{box-sizing:border-box}body{margin:0;background:#d5e7e5;color:var(--ink);font-family:"Yu Gothic","Meiryo",sans-serif}button,input,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;background:var(--paper);border:2px solid var(--ink);border-radius:3px;min-height:44px;font-weight:800;padding:9px 14px}button:disabled{cursor:default;opacity:.45}button:focus-visible,input:focus-visible,a:focus-visible{outline:4px solid var(--orange);outline-offset:3px}[hidden]{display:none!important}.port{max-width:1100px;margin:0 auto;background:var(--paper);min-height:100dvh;box-shadow:0 0 60px #284f5820}header{height:65px;display:flex;align-items:center;justify-content:space-between;padding:0 25px;border-bottom:2px solid var(--ink)}.back{color:var(--ink);font-size:12px;text-decoration:none;font-weight:800}.stamp{font:700 12px monospace;letter-spacing:.12em}.eyebrow{font-size:12px;font-weight:900;letter-spacing:.15em;margin:0 0 15px}.intro{display:grid;grid-template-columns:1fr 1fr;min-height:580px}.title-copy{padding:60px 24px 50px 50px;z-index:2}h1{font-size:clamp(38px,5vw,61px);font-weight:900;letter-spacing:-.05em;line-height:1.23;margin:20px 0 25px}h1 span{color:var(--orange)}.lead{font-size:16px;font-weight:700;line-height:1.95;margin:0 0 28px}.primary{background:var(--orange);color:#fffaf0;border-color:#a83d29;box-shadow:0 4px 0 #a83d29;padding:13px 20px}.primary span{margin-left:35px}.intro-note{font-size:11px;line-height:1.7;margin-top:19px}.poster{background:var(--blue);position:relative;overflow:hidden;border-left:2px solid var(--ink);min-height:380px}.sun{width:120px;height:120px;position:absolute;top:55px;right:55px;border-radius:50%;background:var(--gold)}.paper-cloud{position:absolute;background:#f9f9ed;border-radius:70px;height:65px;width:260px}.paper-cloud:before{content:"";position:absolute;top:-32px;left:70px;width:100px;height:110px;border-radius:60%;background:inherit}.cloud-a{top:210px;left:-75px}.cloud-b{bottom:85px;right:-100px}.poster-beam{display:flex;justify-content:space-between;position:absolute;left:10%;width:80%;top:260px;border-bottom:18px solid var(--mint);padding:0 12px;transform:rotate(-7deg);z-index:2}.poster-beam i{display:grid;place-items:center;width:64px;height:66px;background:var(--gold);border:3px solid var(--ink);font:900 15px monospace;font-style:normal;box-shadow:inset 0 -10px #c99a38}.poster-beam i:nth-child(2),.poster-beam i:nth-child(3){background:#e97655;box-shadow:inset 0 -10px #c45338}.poster-pier{position:absolute;left:45%;top:330px;width:55px;height:320px;background:repeating-linear-gradient(135deg,#467c7b 0 17px,#286367 17px 34px);border:3px solid var(--ink)}.poster-crane{position:absolute;top:55px;left:45%;font-size:200px;color:#214f56;transform:rotate(90deg)}.poster-label{position:absolute;bottom:40px;left:26px;font:800 16px monospace;letter-spacing:.14em}.manifest{display:flex;align-items:center;gap:30px;padding:18px 28px;border-bottom:2px solid var(--ink)}.manifest div{flex:1}.manifest span{display:block;font-size:11px;font-weight:900}.manifest strong{display:block;font-size:23px;font-family:monospace;margin-top:5px}.world{position:relative;background:var(--blue);touch-action:pan-y;overflow:hidden}canvas{display:block;width:100%;height:auto;max-height:520px;aspect-ratio:720/520;touch-action:pan-y}.world-sign{position:absolute;top:18px;left:20px;font-weight:900;letter-spacing:.1em;font-size:12px;background:var(--paper);padding:7px 10px;border:2px solid var(--ink)}.deck{position:absolute;top:60%;left:0;width:100%;height:15%;transform-origin:50% 92%;transition:transform .45s}.deck button{position:absolute;width:11%;height:82%;min-height:36px;padding:3px;border:2px dashed #326e6880;background:#e8f6ee70;font-size:clamp(10px,2vw,19px);touch-action:pan-y}.deck button:nth-child(1){left:19.5%}.deck button:nth-child(2){left:36.2%}.deck button:nth-child(3){left:52.8%}.deck button:nth-child(4){left:69.5%}.deck button.filled{background:var(--gold);border:3px solid var(--ink);box-shadow:inset 0 -8px #b9863840}.deck button:nth-child(even).filled{background:#ee9367}.deck button.selected{outline:5px solid white;outline-offset:2px}.deck button.aimed:not(.filled){background:#ffffffbf;border-style:solid}.deck button small{display:block;font-size:.64em;margin-top:3px}.balance-panel{display:flex;align-items:center;gap:16px;padding:13px 27px;background:#18444d;color:#fff4d6}.arm{width:22%;text-align:center}.arm span{font-size:11px}.arm strong{display:block;font:900 28px monospace}.level{flex:1;text-align:center;font-size:12px;font-weight:800}.level-line{height:12px;background:#789f93;border-radius:9px;position:relative;margin-top:9px}.level-line:after{content:"";position:absolute;width:2px;background:var(--paper);height:20px;left:50%;top:-4px}.level-line i{position:absolute;left:50%;top:-5px;width:10px;height:22px;background:var(--gold);z-index:1;transform:translateX(-50%);transition:left .3s}.control-room{display:grid;grid-template-columns:170px 1fr;gap:24px;padding:22px 28px}.cargo{border-right:2px solid #153c4630}.cargo strong{display:block;font:900 30px monospace;color:var(--orange);margin:8px 0}.cargo>span:last-child{font-size:11px;line-height:1.7;display:block}.crane-control label{display:flex;justify-content:space-between;font-size:12px;font-weight:900}input[type=range]{display:block;width:100%;margin:14px 0 3px;accent-color:var(--orange);height:32px;touch-action:pan-y}.distance{display:flex;justify-content:space-between;font-size:10px;padding:0 4px}.actions{display:flex;gap:12px;margin-top:12px}.actions button{flex:1}.hint{margin:0 28px 20px;padding:13px 16px;border-left:5px solid var(--orange);background:#f0e2bf;font-size:13px;font-weight:700;line-height:1.7}.guide{margin:15px 28px 25px;border-top:2px solid var(--ink);padding-top:15px}.guide summary{cursor:pointer;font-weight:900}.guide p{font-size:12px;line-height:1.8;max-width:850px}.small{opacity:.8}.sheet{max-width:720px;margin:40px auto;padding:34px 28px;background:#fff9e9;border:3px solid var(--ink);box-shadow:8px 8px 0 #91bab2}h2{font-size:29px;line-height:1.5;margin:8px 0 20px}#question{font-size:18px;font-weight:800;line-height:1.6}#choices{display:grid;grid-template-columns:1fr 1fr;gap:12px}#choices button{min-height:64px;text-align:left}#choices button.correct{background:#c5e2c4}#choices button.wrong{background:#f3bca5}#explanation{min-height:3em;line-height:1.8;font-size:14px}.result{text-align:center}.final{display:inline-block;border-bottom:5px solid var(--orange);margin:0 0 18px}.final span{display:block;font-size:11px}.final strong{font:900 68px monospace}.result p{line-height:1.8}.result-actions{display:flex;gap:15px;justify-content:center;flex-wrap:wrap}#ranking{margin-top:25px;text-align:left;padding:18px;background:#e8efe3;scroll-margin-top:20px;color:var(--ink)}#ranking.itc-ranking{color:var(--ink)}#ranking .itc-ranking__tabs button[aria-pressed=true]{background:var(--ink);color:var(--paper)}footer{padding:23px;text-align:center;font-size:11px;border-top:2px solid #153c4620;line-height:1.8}
@media(max-width:650px){header{height:58px;padding:0 15px}.stamp{font-size:9px}.intro{grid-template-columns:1fr}.title-copy{padding:32px 26px}.poster{border-left:0;border-top:2px solid var(--ink);min-height:360px}.poster-pier{top:310px}.poster-beam{top:250px}.poster-label{bottom:20px}.intro h1{font-size:46px}.manifest{gap:10px;padding:14px 13px}.manifest strong{font-size:20px}.manifest button{padding:8px;font-size:11px}.world canvas{min-height:300px}.balance-panel{padding:12px 10px;gap:8px}.arm span{font-size:9px}.arm strong{font-size:24px}.level{font-size:11px}.control-room{grid-template-columns:100px 1fr;padding:17px 14px;gap:13px}.cargo strong{font-size:24px}.cargo .eyebrow{font-size:10px}.actions{gap:7px}.actions button{padding:10px 6px;font-size:12px}.hint{margin:0 14px 20px;font-size:12px}.guide{margin:12px 18px 24px}.sheet{margin:24px 14px;padding:25px 18px}h2{font-size:25px}#choices{grid-template-columns:1fr}.world-sign{font-size:10px;top:12px;left:12px}.result-actions{display:grid}.result-actions button{width:100%}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.poster-crane{top:100px;left:10%;width:80%;height:10px;background:var(--ink);transform:none;font-size:0}.poster-crane:before{content:"";position:absolute;left:44%;top:-12px;width:38px;height:30px;background:var(--gold);border:3px solid var(--ink)}.poster-crane:after{content:"";position:absolute;left:50%;top:10px;width:3px;height:104px;background:var(--ink)}.poster-hook{position:absolute;left:calc(50% - 10px);top:211px;width:23px;height:25px;border:5px solid var(--ink);border-top:0;border-radius:0 0 15px 15px}