:root{font-family:system-ui,-apple-system,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:#17233b;background:#f4f6fa;font-synthesis:none;--muted:#59657a;--green:#2454df}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #2454df;outline-offset:4px}button,summary{cursor:pointer}img{max-width:100%}.portal-header,.portal-main,.portal-footer{width:min(1120px,calc(100% - 40px));margin-inline:auto}.portal-header{min-height:84px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #d9dfeb}.portal-brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:850;letter-spacing:-.6px}.brand-mark{background:#17233b;color:#fff;width:38px;height:38px;border-radius:12px;display:grid;place-content:center;position:relative;font-size:26px}.brand-mark span{color:#b8ef64;position:absolute;right:5px;bottom:1px}.portal-languages{display:flex;gap:2px;background:#e6eaf2;border-radius:12px;padding:3px}.portal-languages a{display:grid;place-items:center;min-width:44px;min-height:44px;font-size:14px;font-weight:700;border-radius:9px}.portal-languages a[aria-current]{background:#fff;box-shadow:0 2px 5px #17233b12}.portal-hero{padding:40px 0 28px}.eyebrow{font-size:12px;letter-spacing:2px;color:#2454df;font-weight:800;margin:0 0 14px}h1{font-size:clamp(30px,5vw,52px);letter-spacing:-1.5px;line-height:1.2;margin:0 0 16px}h1 br{display:none}h1 span{color:#2454df}.hero-intro{font-size:16px;line-height:1.7;color:var(--muted);margin:0}.section-heading{margin:0 0 16px}.section-heading h2{display:flex;align-items:center;gap:10px;font-size:20px;margin:0}.section-heading h2 span{font-size:14px;background:#e3e9f9;color:#2454df;min-width:28px;padding:4px 8px;border-radius:8px}.game-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.game-card{min-width:0;background:#fff;border:1px solid #dce2ec;border-radius:24px;overflow:hidden;box-shadow:0 6px 20px #17233b05;display:flex;flex-direction:column}.art-link{display:block;position:relative;aspect-ratio:16/9;flex:none;overflow:hidden;background:#e4eff3}.catalog-thumbnail{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.card-body{padding:24px;display:flex;flex-direction:column;flex:1}.game-category{color:#2454df;font-size:13px;font-weight:750}.card-body h3{font-size:28px;margin:8px 0 10px;letter-spacing:-.8px}.card-body>p{font-size:16px;line-height:1.7;color:var(--muted);margin:0 0 18px}.game-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:auto}.game-tags span{font-size:12px;padding:6px 9px;background:#f1f4f9;color:#59657a;border-radius:6px}.card-actions{display:flex;align-items:center;gap:16px;margin-top:22px;flex-wrap:wrap}.play-button{display:flex;justify-content:center;align-items:center;gap:12px;background:linear-gradient(180deg,#ffe889,#ffd044);color:#17233b;min-height:56px;padding:12px 18px;border:2px solid #17233b;border-radius:14px;font-weight:850;font-size:17px;flex:1;box-shadow:0 5px 0 #17233b,inset 0 2px 0 #fff8;transform:translateY(0);transition:transform .12s,box-shadow .12s,background .12s;margin-bottom:5px}.play-button:hover{background:linear-gradient(180deg,#fff0ad,#ffdc64);transform:translateY(-2px);box-shadow:0 7px 0 #17233b,inset 0 2px 0 #fff8}.play-button:active{transform:translateY(4px);box-shadow:0 1px 0 #17233b,inset 0 2px 0 #fff8}.play-icon{display:grid;place-items:center;flex:none;width:28px;height:28px;border-radius:50%;background:#17233b;color:#ffdb59;font-size:13px;padding-left:2px}.play-button b{font-size:22px}.detail-link{font-size:14px;min-height:44px;display:flex;align-items:center}.mode-feature{margin-top:32px}.mode-feature h2,.portal-about h2{font-size:20px;margin:0 0 16px}.mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.mode-grid>a{padding:20px 0;display:flex;gap:12px;border-top:1px solid #d4dce8;align-items:flex-start}.mode-mark{font-size:13px;font-weight:800;color:#2454df;padding-top:3px}.mode-grid b{font-size:16px}.mode-grid small{display:block;font-size:14px;line-height:1.6;color:var(--muted);margin-top:6px}.mode-grid i{margin-left:auto;font-style:normal}.portal-about{padding:32px 0;max-width:780px}.portal-about p{font-size:16px;line-height:1.8;color:var(--muted)}.portal-about>a{font-size:14px;color:#2454df;display:inline-flex;min-height:44px;align-items:center}.portal-footer{border-top:1px solid #d9dfeb;padding:28px 0;display:flex;justify-content:space-between;gap:20px;align-items:center}.portal-footer b{font-size:18px}.portal-footer p{font-size:14px;color:var(--muted)}.portal-footer nav{display:flex;flex-wrap:wrap;gap:8px 20px}.portal-footer nav a{font-size:14px;min-height:44px;display:flex;align-items:center}.nickname-panel{margin:0 0 28px;border:1px solid #dce2ec;border-radius:14px;background:#fff}.nickname-panel summary{padding:14px 18px;min-height:52px;font-size:14px;line-height:1.7;overflow-wrap:anywhere}.nickname-current{font-weight:750;margin-left:10px}.nickname-panel form{padding:0 18px 16px}.nickname-panel label{display:block;font-size:14px;margin-bottom:8px}.nickname-controls{display:flex;gap:8px;flex-wrap:wrap}.nickname-controls input{flex:1;min-width:0;width:100%;min-height:48px;border:1px solid #a1afc4;border-radius:9px;padding:10px;font-size:16px;color:inherit}.nickname-controls button{min-height:48px;border:0;border-radius:9px;background:#2454df;color:#fff;padding:10px 18px;font-size:16px}.nickname-controls .nickname-clear{background:#edf0f6;color:#36445d}.nickname-controls button:disabled{opacity:.5;cursor:default}#nickname-hint,.nickname-status{font-size:14px;line-height:1.6;color:var(--muted);margin:12px 0 0}.nickname-status:empty{display:none}@media(max-width:700px){.portal-header,.portal-main,.portal-footer{width:calc(100% - 32px)}.portal-header{min-height:76px}.portal-brand{font-size:20px}.portal-languages a{min-width:40px}.portal-hero{padding:28px 0 22px}h1 br{display:block}.game-grid{grid-template-columns:minmax(0,1fr);gap:20px}.card-body{padding:20px}.mode-grid{grid-template-columns:minmax(0,1fr);gap:0}.mode-grid>a{padding:18px 0}.portal-footer{flex-direction:column;align-items:flex-start}.portal-about{padding:24px 0}.nickname-panel{margin-bottom:24px}}@media(max-width:360px){.portal-brand{font-size:17px;gap:7px}.brand-mark{width:32px;height:34px}.portal-languages a{min-width:36px}.card-actions{gap:8px}.play-button{gap:12px}.nickname-controls input{flex-basis:100%}.nickname-controls button{flex:1}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.play-button{transition:none}}


@media(max-width:700px){.nickname-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.nickname-controls input{grid-column:1/-1}.nickname-controls button{width:100%}.card-actions{display:grid;grid-template-columns:minmax(0,1fr)}.detail-link{justify-content:center}.portal-header{flex-wrap:wrap;padding-block:12px}.portal-languages{margin-left:auto}}
.guide-main{max-width:850px}.guide-back{padding-top:24px;font-size:14px}.guide-back a,.guide-related a{display:inline-flex;align-items:center;min-height:44px;color:#2454df}.guide-main h1{font-size:clamp(28px,5vw,42px);overflow-wrap:anywhere}.guide-main .portal-hero{padding:24px 0}.guide-preview{font-size:14px;color:#59657a}.guide-play{max-width:340px;margin:20px 0}.guide-image{display:block;width:100%;height:auto;border-radius:18px;margin:24px 0}.guide-section{padding:12px 0}.guide-section h2{font-size:22px;line-height:1.4;margin:12px 0}.guide-section p{font-size:16px;line-height:1.9;color:#46546b;word-break:keep-all;overflow-wrap:anywhere}.guide-related{border-top:1px solid #d9dfeb;margin-top:28px;padding:20px 0}.home-ad:not([hidden]){display:block;min-height:300px;margin:48px 0 32px;padding-top:16px;border-top:1px solid #d9dfeb}.home-ad>p{font-size:12px;color:#59657a;text-align:center;margin:0 0 12px}.home-ad .adsbygoogle{min-height:250px}
.guide-main h1{word-break:keep-all;line-height:1.3}
.info-main{padding-block:36px}.info-main h1{margin:0 0 24px}.info-main h2{font-size:22px;line-height:1.4;margin:30px 0 12px}.info-main p,.info-main li{font-size:16px;line-height:1.9;color:#46546b;overflow-wrap:anywhere;word-break:keep-all}.info-main a{color:#214fca;text-decoration:underline;text-underline-offset:3px}.info-main .contact-email{font-weight:700}.info-main section[lang]{border-top:1px solid #d9dfeb;margin-top:28px;padding-top:8px}

.guide-overview{margin-top:40px}.guide-overview .section-heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}.guide-overview .section-heading>a{color:#2454df;min-height:44px;display:inline-flex;align-items:center;font-size:14px}.quick-guide{background:#fff;border:1px solid #dce2ec;border-radius:20px;padding:24px;display:flex;flex-direction:column;min-width:0}.quick-guide h3{font-size:22px;margin:0 0 16px}.quick-guide ol{padding-left:24px;margin:0 0 16px;color:#46546b;line-height:1.8;flex:1}.quick-guide li{padding-left:6px;margin-bottom:10px;overflow-wrap:anywhere}.quick-guide li::marker{font-weight:800;color:#2454df}.quick-guide .detail-link{color:#2454df;justify-content:flex-start}.guide-index .game-card h2{font-size:25px}.guide-index .art-link{border-bottom:1px solid #dce2ec}

/* In-flow ads reserve height before loading and stay separate from game controls. */
.portal-ad:not([hidden]){display:block;margin:48px 0;padding:18px 0 24px;border-block:1px solid #d9dfeb;clear:both;min-width:0}.ad-label{text-align:center;font-size:11px;letter-spacing:.08em;color:#657086;margin:0 0 14px}.ad-unit{width:100%;min-height:280px}.portal-ad ins.adsbygoogle{width:100%;min-height:280px}.portal-ad:has(ins[data-ad-status="unfilled"]){display:none}.ad-preview .ad-unit{display:grid;place-items:center;background:repeating-linear-gradient(135deg,#edf0f5,#edf0f5 12px,#f4f6fa 12px,#f4f6fa 24px);border:1px dashed #b5bfd0;color:#657086;font-size:18px;letter-spacing:.12em}.guide-section+.portal-ad{margin-block:40px}@media(min-width:900px){[data-ad-placement="home"] .ad-unit,[data-ad-placement="home"] ins.adsbygoogle{min-height:250px}}