:root{--bg:#f2f3fa;--surface:#fff;--surface-2:#f7f8fd;--ink:#1b1a2e;--muted:#6d6d8a;--line:#e4e5f0;--brand:#6c4cf1;--brand-2:#9b7bff;--accent:#ffc23c;--good:#16b981;--bad:#f2545b;--stage:#131a2b;--stage-2:#1b2438;--stage-line:#ffffff1f;--stage-ink:#e9eefb;--stage-muted:#93a2c4;--radius:14px;--radius-lg:22px;--shadow-sm:0 1px 2px #1b1a2e0f, 0 2px 8px #1b1a2e0d;--shadow:0 8px 28px #1b1a2e1f;--max:1340px;--header-h:64px;--rail-w:208px}*{box-sizing:border-box}html,body,#root{min-height:100%}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;margin:0;font-family:system-ui,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.6}h1,h2,h3{letter-spacing:-.015em;margin:0 0 .5em;line-height:1.25}p{margin:0 0 1em}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}.btn{border:1px solid 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p{color:var(--muted);margin:0;font-size:.92rem}.howto{border-radius:var(--radius-lg);background:var(--surface);border:1px solid var(--line);margin:18px 0 4px;padding:18px}.howto h2{margin-bottom:12px;font-size:1rem}.howto dl{gap:12px;margin:0;display:grid}@media (width>=720px){.howto dl{grid-template-columns:1fr 1fr}}.howto dt{margin-bottom:2px;font-size:.9rem;font-weight:800}.howto dd{color:var(--muted);margin:0;font-size:.9rem}.shell{flex-direction:column;align-items:center;gap:12px;display:flex}.shell-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;width:100%;max-width:520px;display:flex}.stats{flex-wrap:wrap;gap:8px;display:flex}.stat{border:1px solid var(--stage-line);text-align:center;background:#ffffff0d;border-radius:12px;min-width:62px;padding:6px 12px;line-height:1.2}.stat-hi{border-color:var(--bad);animation:1s infinite pulse}@keyframes 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0;border:0;padding:0}.memo-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .35s;display:block;position:relative}.memo-card.up .memo-inner{transform:rotateY(180deg)}.memo-back,.memo-front{backface-visibility:hidden;border:1px solid var(--stage-line);border-radius:12px;place-items:center;display:grid;position:absolute;inset:0}.memo-back{color:#b9c4e6;background:linear-gradient(150deg,#33427a,#232f52);font-size:1.4rem;font-weight:800}.memo-front{background:var(--stage-2);font-size:clamp(1.5rem,8vw,2.2rem);transform:rotateY(180deg)}.memo-card.matched .memo-front{border-color:var(--good);box-shadow:0 0 18px #16b98166}.whack-grid{aspect-ratio:1;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;max-width:400px;display:grid}.whack-hole{border:1px solid var(--stage-line);cursor:pointer;touch-action:manipulation;background:radial-gradient(circle at 50% 30%,#22304e,#10182a 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0;border:0;padding:0 2px;font-size:.78rem}.msg-text{white-space:pre-wrap;word-break:break-word;margin:0;font-size:.94rem}.toast{z-index:60;background:var(--good);color:#fff;box-shadow:var(--shadow);border-radius:999px;padding:11px 20px;font-weight:700;animation:.25s rise;position:fixed;bottom:26px;left:50%;transform:translate(-50%)}@keyframes rise{0%{opacity:0;transform:translate(-50%,12px)}}.prose{max-width:68ch}.prose p{color:var(--muted)}.prose h2{margin-top:28px;font-size:1.1rem}.rules{gap:10px;padding:0;list-style:none;display:grid}.rules li{border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);gap:10px;padding:12px 14px;font-size:.94rem;display:flex}.tick{color:var(--good);font-weight:800}.inline-link{color:var(--brand);font-weight:700}.footer{border-top:1px solid var(--line);text-align:center;color:var(--muted);flex-direction:column;align-items:center;gap:10px;padding:20px 0 30px;font-size:.86rem;display:flex}.footer-inner{display:contents}.footer-links{gap:16px;display:flex}.footer-links a:hover{color:var(--ink)}.dot{margin:0 6px}@media (width>=720px){.footer{text-align:left;flex-direction:row;justify-content:space-between}}.nav{align-items:center;gap:4px}.nav a{color:#626078;letter-spacing:.012em;border-radius:10px;padding:8px 13px;font-family:Inter,SF Pro Text,Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:.9rem;font-weight:650;line-height:1;transition:color .18s,background-color .18s,transform .18s;position:relative}.nav a:after{content:"";background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:2px;height:2px;transition:left .2s,right .2s;position:absolute;bottom:3px;left:50%;right:50%}.nav a:hover{color:var(--ink);background:#f5f3ff;transform:translateY(-1px)}.nav a.active{color:#593bd9;background:#f1edff;font-weight:750}.nav a.active:after{left:13px;right:13px}.nav a:focus-visible{outline-offset:2px;outline:2px solid #6c4cf14d}.lang-switch{background:#f7f6fb;border-radius:12px;gap:2px;padding:2px}.lang-switch button{color:#626078;cursor:pointer;letter-spacing:.012em;background:0 0;border:0;border-radius:9px;min-width:52px;padding:8px 12px;font-family:Inter,SF Pro Text,Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:.9rem;font-weight:650;line-height:1;transition:color .18s,background-color .18s,box-shadow .18s}.lang-switch button:hover{color:var(--ink);background:#f1edff}.lang-switch button.active{background:var(--brand);color:#fff;font-weight:750;box-shadow:0 2px 7px #6c4cf138}.lang-switch button:focus-visible{outline-offset:2px;outline:2px solid #6c4cf14d}.shell-layout>.main{width:100%;min-width:0}.board-wrap{min-height:200px}.board-wrap>.overlay{position:absolute}.stat small{color:var(--stage-muted);text-transform:uppercase;font-size:.68rem;display:block}.stat strong{display:block}.dpad{margin:8px auto}.dpad .up{grid-area:1/2}.dpad .left{grid-area:2/1}.dpad .down{grid-area:2/2}.dpad .right{grid-area:2/3}.snake-board{aspect-ratio:1;background:#101725;border-radius:14px;grid-template-columns:repeat(17,1fr);width:min(100%,440px);display:grid;overflow:hidden}.snake-board span{border:1px solid #ffffff08}.snake-board .snake{background:#5ee7a0;border-radius:25%}.snake-board .head{background:#b4ffd5}.snake-board .fruit{background:#ff5c5c;border-radius:50%;transform:scale(.65)}.tetris-board{aspect-ratio:1/2;background:#101725;border:1px solid #ffffff1f;grid-template-columns:repeat(10,1fr);width:min(100%,300px);display:grid}.tetris-board span{border:1px solid #ffffff0a;border-radius:2px}.game-buttons{gap:7px;display:flex}.game-buttons button{border:1px solid var(--stage-line);color:#fff;background:#ffffff14;border-radius:12px;width:52px;height:46px}.memo-card{color:#fff;background:#344276;border:1px solid #ffffff25;border-radius:12px;font-size:2rem}.memo-card.up{background:#1d263b}.memo-card.matched{border-color:#5ee7a0}.whack-hole span{font-size:2.2rem;transition:all .14s;display:block;transform:translateY(120%)}.whack-hole span.up{transform:translateY(0)}.mine-grid{grid-template-rows:repeat(9,1fr)}.mine-cell{min-width:0;min-height:0}.board-wrap canvas{touch-action:none;border-radius:14px;max-width:100%;height:auto}.howto ul{color:var(--muted)}.board-list{padding:0;list-style:none}.board-form textarea{width:100%;margin-bottom:12px}.ttt-wrap{gap:12px;width:min(100%,420px);display:grid}.ttt-board{aspect-ratio:1;grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.ttt-board button{border:1px solid var(--stage-line);color:#fff;background:#ffffff10;border-radius:14px;font-size:clamp(2.2rem,12vw,4rem);font-weight:900}.ttt-board button:not(:disabled):hover{background:#ffffff1f}.ttt-board .mark-x{color:#5ee7a0}.ttt-board .mark-o{color:#7aa2ff}.ttt-difficulty{justify-content:center;gap:8px;display:flex}.ttt-difficulty button{border:1px solid var(--stage-line);color:var(--stage-muted);background:#ffffff10;border-radius:999px;padding:6px 14px;font-weight:700}.ttt-difficulty button.active{background:var(--brand);color:#fff;border-color:var(--brand)}.ttt-note{text-align:center;color:var(--stage-muted);margin:0;font-size:.85rem}.game-guide,.game-faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);margin-top:16px;padding:20px}.game-guide h2,.game-faq h2{margin-top:0;font-size:1.08rem}.game-guide h2:not(:first-child){margin-top:22px}.game-guide li{margin-bottom:7px}.game-faq details{border-top:1px solid var(--line);padding:12px 0}.game-faq details:first-of-type{border-top:0}.game-faq summary{cursor:pointer;font-weight:800}.game-faq p{color:var(--muted);margin:8px 0 0}.editorial-note{border-left:4px solid var(--brand);color:var(--muted);background:#6c4cf10b;margin:16px 0;padding:12px 14px;font-size:.9rem}.category-nav{gap:3px;display:grid}.category-nav .side-link span:first-child{text-align:center;width:24px}.category-nav .side-link.active{background:var(--brand);color:#fff}.footer{padding:20px 14px 30px;display:block}.footer-content{max-width:var(--max);justify-content:space-between;align-items:center;gap:18px;margin:0 auto;display:flex}.footer-links{flex-wrap:wrap;gap:16px;display:flex}.mobile-categories,.mobile-bottom-nav{display:none}@media (width<=1023px){body{padding-bottom:68px}.sidebar{display:none}.mobile-categories{background:var(--surface);border-bottom:1px solid var(--line);scrollbar-width:none;gap:8px;padding:10px 14px;display:flex;overflow-x:auto}.mobile-categories::-webkit-scrollbar{display:none}.mobile-category{white-space:nowrap;border:1px solid var(--line);color:var(--muted);border-radius:999px;align-items:center;gap:6px;padding:6px 12px;font-size:.85rem;font-weight:700;display:flex}.mobile-category.active{background:var(--brand);border-color:var(--brand);color:#fff}.mobile-bottom-nav{z-index:50;background:var(--surface);border-top:1px solid var(--line);padding:6px max(8px,env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 18px #1b1a2e14}.mobile-bottom-nav a{color:var(--muted);flex-direction:column;align-items:center;gap:1px;font-size:1.05rem;display:flex}.mobile-bottom-nav a span{font-size:.7rem;font-weight:700}.mobile-bottom-nav a.active{color:var(--brand)}}@media (width<=720px){.nav{display:none}.header-inner{flex-wrap:wrap}.search-form{flex-basis:100%;order:3;max-width:none;margin:0 0 10px}.tile-card.featured{grid-column:span 1}.promo-stats{width:100%}.footer-content{flex-direction:column}.footer-links{justify-content:center}}.micro-shell{width:100%;max-width:560px;margin:auto}.micro-board{--micro-a:#6c4cf1;--micro-b:#9b7bff;border:1px solid var(--stage-line);background:linear-gradient(155deg,#111827,#1d2942);border-radius:18px;place-items:center;width:100%;min-height:390px;padding:18px;display:grid;position:relative;overflow:hidden}.micro-overlay{z-index:6;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0a0f1cb8;place-items:center;display:grid;position:absolute;inset:0}.micro-note{color:var(--stage-muted);margin-top:10px}.lane-grid{background:linear-gradient(90deg,#ffffff08 32%,#ffffff26 33% 34%,#ffffff08 35% 65%,#ffffff26 66% 67%,#ffffff08 68%);border-radius:14px;grid-template-rows:repeat(6,1fr);grid-template-columns:repeat(3,1fr);gap:4px;width:min(100%,330px);height:350px;padding:5px;display:grid}.lane-cell{border-bottom:1px dashed #ffffff17;place-items:center;display:grid}.lane-cell b{color:var(--micro-a);font-size:2rem;font-style:normal}.lane-cell em{filter:drop-shadow(0 4px 8px #0008);font-size:2.1rem;font-style:normal}.target-grid{grid-template-columns:repeat(4,1fr);gap:8px;width:min(100%,360px);display:grid}.target-grid.aim-grid,.spot-grid{grid-template-columns:repeat(5,1fr)}.target-grid button,.spot-grid button{aspect-ratio:1;color:#fff;cursor:pointer;background:#ffffff09;border:1px solid #ffffff12;border-radius:12px;font-size:1.45rem;transition:transform .1s,background .1s}.target-grid button.hot{background:linear-gradient(145deg,var(--micro-a),var(--micro-b));box-shadow:0 0 20px color-mix(in srgb,var(--micro-a) 55%,transparent);transform:scale(.92)}.math-game{text-align:center;gap:22px;width:min(100%,390px);display:grid}.math-game>strong{letter-spacing:.03em;font-size:clamp(2.2rem,10vw,4rem)}.math-game>div{grid-template-columns:1fr 1fr;gap:10px;display:grid}.math-game button{color:#fff;cursor:pointer;background:#ffffff12;border:1px solid #ffffff1c;border-radius:14px;padding:15px;font-size:1.25rem;font-weight:800;position:relative}.math-game button:hover{background:color-mix(in srgb,var(--micro-a) 45%,#ffffff12)}.math-game button small{color:var(--stage-muted);font-size:.65rem;position:absolute;top:5px;left:8px}.sequence-grid{grid-template-columns:1fr 1fr;gap:12px;width:min(100%,350px);display:grid}.sequence-grid button{aspect-ratio:1;opacity:.5;cursor:pointer;border:0;border-radius:22px;transition:opacity .1s,transform .1s}.sequence-grid button:first-child{background:#ff595e}.sequence-grid button:nth-child(2){background:#ffca3a}.sequence-grid button:nth-child(3){background:#8ac926}.sequence-grid button:nth-child(4){background:#1982c4}.sequence-grid button.flash,.sequence-grid button:active{opacity:1;transform:scale(.94);box-shadow:0 0 26px #fff7}.stack-track{cursor:pointer;background:#ffffff09;border:1px solid #ffffff1f;border-radius:14px;width:min(100%,430px);height:78px;position:relative}.stack-track .stack-zone{background:#16b98130;border-left:1px dashed #16b981;border-right:1px dashed #16b981;width:14%;position:absolute;top:0;bottom:0;left:43%}.stack-track i{background:linear-gradient(var(--micro-a),var(--micro-b));width:12px;box-shadow:0 0 15px var(--micro-a);border-radius:8px;position:absolute;top:9px;bottom:9px;transform:translate(-50%)}.stack-tower{flex-direction:column-reverse;width:48px;display:flex;position:absolute;bottom:25px;right:28px}.stack-tower b{background:linear-gradient(90deg,var(--micro-a),var(--micro-b));border-radius:3px;height:10px;margin-top:2px}.idle-game{place-items:center;gap:16px;width:min(100%,360px);display:grid}.resource-btn{background:radial-gradient(circle at 35% 28%,var(--micro-a),var(--micro-b));color:#fff;cursor:pointer;border:2px solid #ffffff2b;border-radius:50%;align-content:center;place-items:center;width:180px;height:180px;display:grid;box-shadow:0 14px 34px #0006}.resource-btn:active{transform:scale(.96)}.resource-btn span{font-size:3.5rem}.resource-btn strong{font-size:1.25rem}.upgrade-btn{color:#fff;cursor:pointer;background:#ffffff12;border:1px solid #ffffff25;border-radius:999px;padding:10px 20px;font-weight:800}.upgrade-btn:disabled,.resource-btn:disabled{opacity:.5;cursor:not-allowed}.idle-game progress{width:100%;accent-color:var(--micro-a)}.sort-grid{grid-template-columns:repeat(4,1fr);gap:8px;width:min(100%,360px);display:grid}.sort-grid button{aspect-ratio:1;background:linear-gradient(145deg,var(--micro-a),var(--micro-b));color:#fff;cursor:pointer;border:1px solid #ffffff1c;border-radius:12px;font-size:1.1rem;font-weight:900}.sort-grid button.done{opacity:.15;transform:scale(.8)}.spot-grid{gap:6px;width:min(100%,360px);display:grid}.spot-grid button{font-size:1.2rem}.spot-grid button:hover{background:#ffffff18}@media (width<=520px){.micro-board{min-height:340px;padding:12px}.lane-grid{height:305px}.target-grid,.spot-grid,.sort-grid{gap:5px}.sequence-grid{max-width:290px}.resource-btn{width:150px;height:150px}}.crumbs{color:var(--muted);flex-wrap:wrap;align-items:center;gap:7px;margin-bottom:12px;font-size:.86rem;display:flex}.crumbs a{color:var(--brand);font-weight:700}.crumbs a:hover{text-decoration:underline}.category-head{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);align-items:flex-start;gap:14px;margin-bottom:15px;padding:20px;display:flex}.category-head>span{background:#6c4cf112;border-radius:15px;flex:none;place-items:center;width:52px;height:52px;font-size:1.75rem;display:grid}.category-head h1{margin:0 0 5px}.category-head p{max-width:78ch;color:var(--muted);margin:0 0 6px}.category-head small{color:var(--brand);font-weight:800}.category-section{margin:26px 0}.category-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.category-cards>a{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);grid-template-columns:auto 1fr;align-items:center;column-gap:11px;padding:15px;transition:transform .16s,border-color .16s,box-shadow .16s;display:grid}.category-cards>a:hover{box-shadow:var(--shadow-sm);border-color:#6c4cf159;transform:translateY(-2px)}.category-cards>a>span{grid-row:span 2;font-size:1.65rem}.category-cards strong{font-size:.96rem}.category-cards small{color:var(--brand);font-weight:700}.category-cards p{color:var(--muted);grid-column:1/-1;margin:9px 0 0;font-size:.8rem;line-height:1.5}.game-tags{flex-wrap:wrap;gap:7px;margin:12px 0 0;display:flex}.game-tags a,.game-tags span{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:999px;padding:4px 10px;font-size:.76rem;font-weight:700}.game-tags a{color:var(--brand)}@media (width<=620px){.category-cards{grid-template-columns:1fr}.category-head{padding:15px}.category-head>span{width:44px;height:44px;font-size:1.4rem}}