:root{color-scheme:dark;--ink:#f6f1e6;--muted:#aab8be;--gold:#f4ce8d;--cyan:#7ee0db;--base:#101b25;--line:#a9c7c32b;--surface:#182831;--red:#b64236;font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-synthesis:none;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;background:var(--base);color:var(--ink);font-size:17px;line-height:1.65}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}a{color:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.6}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}button[hidden],[hidden]{display:none!important}h1,h2,h3,p{margin-top:0}h1,h2{letter-spacing:-.045em;line-height:1.09}h2{font-size:clamp(34px,4.4vw,54px)}h3{line-height:1.25}em{font-family:Georgia,'Times New 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16px}.game-top p{max-width:660px;font-size:14px;color:var(--muted)}.progress-caption{font-size:12px;color:var(--muted);display:flex;gap:20px;justify-content:space-between;margin:20px 0 8px}.progress-track{height:4px;background:#304047;border-radius:4px;overflow:hidden}.progress-fill{height:100%;background:var(--gold)}.keybook{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:28px 0 38px}.key-slot{border:1px solid var(--line);padding:14px 16px;border-radius:8px;display:flex;align-items:center;gap:12px;background:#15242d}.key-slot .aq-icon{width:24px;height:24px;color:var(--gold);flex:none}.key-slot small{font-size:10px;color:var(--muted);display:block}.key-slot strong{font-size:13px;letter-spacing:.08em}.key-slot.is-earned{border-color:#e3be7866}.calendar-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:13px}.door{position:relative;min-height:156px;background:linear-gradient(145deg,#28404a,#13232d);border:1px solid #b3cbc333;border-radius:9px;color:var(--ink);padding:16px 9px;overflow:hidden;text-align:center}.door:disabled{opacity:1;color:#9aabb4}.door .num{display:block;font:42px Georgia,serif;line-height:1.1;color:var(--gold);margin-bottom:13px}.door .door-icon{height:23px;display:grid;place-content:center;margin-bottom:8px;color:var(--gold)}.door .door-icon .aq-icon{width:23px;height:23px}.door small{font-size:9px;line-height:1.4;display:block;letter-spacing:.02em}.door.is-locked{background:linear-gradient(145deg,#1a2b34,#111e28);border-style:dashed}.door.is-locked .num{color:#91a4ab}.door.is-open{border-color:var(--gold);box-shadow:inset 0 0 35px #e0ad4920}.door.is-open:hover{background:#2a4248;transform:translateY(-3px)}.door.is-done{border-color:#7ee0db66;background:linear-gradient(145deg,#244b4a,#172c33)}.door.is-done .num{color:var(--cyan)}.date-note{padding:18px 22px;border-left:2px solid var(--gold);background:#f4ce8d0b;font-size:14px;margin:28px 0}.day-header{margin:25px 0}.day-header 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.play{width:70px;height:70px;border-radius:50%;background:var(--gold);border:0;color:var(--base);font-size:26px;display:grid;place-content:center;margin-bottom:18px}.video-intro h2{font-size:30px;margin-bottom:10px}.video-intro p{font-size:13px;max-width:440px;color:var(--muted);margin-bottom:0}.under-video{color:var(--muted);font-size:12px;padding-top:12px}.puzzle-shell{border:1px solid var(--line);background:#15252e;border-radius:12px;padding:32px}.puzzle-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:24px}.puzzle-heading h2{font-size:29px;margin:0}.puzzle-heading span{font-size:11px;color:var(--cyan)}#puzzle-mount{color-scheme:dark}.answer-actions{display:flex;gap:14px;align-items:center;margin-top:28px;padding-top:25px;border-top:1px solid var(--line);flex-wrap:wrap}.answer-status{font-size:14px;margin:18px 0 0;color:#ffd5a4;line-height:1.6}.hints{margin-top:20px}.hint{padding:16px 20px;border-left:2px solid var(--gold);background:#f4ce8d0b;margin:13px 0;font-size:14px}.hint strong{display:block;font-size:11px;color:var(--gold);letter-spacing:.08em;margin-bottom:5px}.success-panel{text-align:center;border:1px solid #7ee0db66;background:radial-gradient(circle at 50% 0,#2b62565e,transparent),#15252e;padding:45px 25px;border-radius:12px;margin:25px 0}.success-panel .success-star{font-size:46px;color:var(--gold);margin-bottom:13px;display:block}.success-panel h2{font-size:40px}.success-panel p{font-size:15px;max-width:620px;margin:0 auto 25px;color:var(--muted)}.explanation{font-size:13px;color:var(--muted);padding:16px 0}.demo-note{font-size:12px;color:var(--gold);border:1px solid #f4ce8d55;border-radius:4px;padding:7px 13px;margin-bottom:22px;display:inline-block}.back{color:var(--muted);font-size:12px;background:none;border:0;padding:0}.noscript{margin:25px;padding:30px;border:1px solid var(--gold)}.certificate{background:#f5f0df;color:#18333a;text-align:center;padding:60px;border:8px double #b18d45;margin:30px auto;max-width:760px}.certificate h2{font-family:Georgia,serif;font-size:44px}.certificate p{color:#34515b}.certificate input{text-align:center;background:none;border:0;border-bottom:1px solid #a48f68;color:#18333a;font-size:28px;padding:15px}.certificate small{font-size:12px}.certificate .cert-sign{font-family:Georgia,serif;font-style:italic;font-size:23px;margin-top:25px}
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