:root{
  --bg:#0d1022; --card:#1b2140; --card2:#232a52;
  --text:#eef1ff; --muted:#9aa3c7; --accent:#7c5cff; --accent2:#00d4ff;
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:"Segoe UI",system-ui,-apple-system,"Noto Sans","Noto Sans SC","Noto Sans JP","Noto Sans Arabic",sans-serif;line-height:1.5;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}

.site-header{position:sticky;top:0;z-index:50;background:rgba(13,16,34,.88);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.06)}
.header-inner{max-width:1440px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-size:1.25rem;font-weight:800;display:flex;align-items:center;gap:8px}
.logo span{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lang-switch select{background:var(--card);color:var(--text);border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:6px 10px}

/* ---- 广告位布局：左右竖条 + 居中内容 ---- */
.layout{display:grid;grid-template-columns:160px minmax(0,1fr) 160px;gap:24px;width:100%;max-width:1440px;margin:0 auto;padding:24px;flex:1}
main{min-width:0}
/* 显式网格坐标：即使侧边元素被浏览器扩展删除，内容列也固定居中不塌陷 */
main{grid-column:2;grid-row:1}
.pp-side{border:1px dashed rgba(255,255,255,.14);border-radius:var(--radius);position:sticky;top:84px;height:calc(100vh - 108px);min-height:600px;background:rgba(255,255,255,.02)}
.pp-side-l{grid-column:1;grid-row:1}
.pp-side-r{grid-column:3;grid-row:1}

.hero{text-align:center;padding:28px 8px 8px}
.hero h1{font-size:clamp(1.5rem,3.2vw,2.4rem);background:linear-gradient(135deg,#fff,#9db1ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);margin-top:8px}
.search-box{max-width:560px;margin:20px auto 0}
.search-box input{width:100%;padding:12px 18px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:var(--card);color:var(--text);outline:none;font-size:1rem}
.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(124,92,255,.25)}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:18px 0 4px}
.chip{padding:7px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.12);background:transparent;color:var(--muted)}
.chip:hover{color:var(--text)}
.chip.active{background:linear-gradient(135deg,var(--accent),#5b3df0);color:#fff;border-color:transparent}
.count-line{text-align:center;color:var(--muted);font-size:.85rem;margin-top:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px;margin-top:16px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius);overflow:hidden;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.6);box-shadow:0 12px 30px rgba(0,0,0,.35)}
.card-cover{aspect-ratio:16/10;display:block;overflow:hidden;background:#141936}
.card-cover img{width:100%;height:100%;object-fit:cover;display:block}
.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-title{font-weight:700;font-size:1.02rem}
.card-desc{color:var(--muted);font-size:.86rem;flex:1}
.card-meta{display:flex;align-items:center;justify-content:space-between}
.card-cat{font-size:.72rem;padding:3px 10px;border-radius:999px;background:rgba(124,92,255,.18);color:#cabcff}
.card-play{font-size:.8rem;color:var(--accent2);font-weight:700}
.no-results{text-align:center;color:var(--muted);padding:40px 0}
.pagination{display:flex;gap:8px;justify-content:center;align-items:center;margin:26px 0 8px;flex-wrap:wrap}
.page-btn{min-width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:var(--card);color:var(--text)}
.page-btn.active{background:var(--accent);border-color:transparent}
.page-btn:disabled{opacity:.4;cursor:default}
.page-ellipsis{color:var(--muted)}
.site-footer{border-top:1px solid rgba(255,255,255,.06);color:var(--muted);text-align:center;padding:20px;font-size:.85rem;margin-top:24px}

/* ---- 游戏页 ---- */
.game-head{display:flex;align-items:center;gap:12px;margin-bottom:10px;flex-wrap:wrap}
.back-link{color:var(--muted);font-size:.9rem}
.back-link:hover{color:var(--text)}
.game-title{font-size:1.5rem;margin-bottom:16px}
.pp-shell{position:relative;background:var(--card);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;align-items:center;gap:14px;width:100%}
.pp-shell>div{width:100%}
.pp-hud{display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap}
.pp-hud .hud-item{background:var(--card2);border-radius:10px;padding:6px 14px;font-size:.9rem}
.pp-hud .hud-item b{color:var(--accent2)}
.pp-stage{position:relative;width:100%;max-width:640px;display:flex;justify-content:center}
.pp-stage canvas{width:100%;max-width:640px;height:auto;display:block;border-radius:10px;background:#10142c;touch-action:none}
.pp-overlay{position:absolute;inset:0;background:rgba(10,12,28,.85);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;border-radius:10px;padding:20px;z-index:5}
.pp-overlay.hidden{display:none}
.pp-overlay h2{font-size:1.6rem}
.pp-btn{padding:10px 26px;border-radius:999px;border:none;background:linear-gradient(135deg,var(--accent),#5b3df0);color:#fff;font-weight:700}
.pp-btn:hover{filter:brightness(1.12)}
.pp-btn.secondary{background:var(--card2);border:1px solid rgba(255,255,255,.15)}
.pp-note{color:var(--muted);font-size:.85rem}
.howto{margin-top:24px;background:var(--card);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius);padding:18px 20px}
.howto h2{font-size:1.1rem;margin-bottom:8px}
.howto p{color:var(--muted)}
.related{margin-top:28px}
.related h2{font-size:1.15rem;margin-bottom:12px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.rel-card{background:var(--card);border:1px solid rgba(255,255,255,.07);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:6px;transition:border-color .18s}
.rel-card:hover{border-color:rgba(124,92,255,.6)}
.rel-card .em{font-size:34px}
.rel-card .t{font-weight:700;font-size:.92rem}
.rel-card .c{font-size:.74rem;color:var(--muted)}

/* ---- 资源加载进度条 ---- */
.pp-loader{position:fixed;inset:0;z-index:100;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;transition:opacity .4s}
.pp-loader.hidden{opacity:0;pointer-events:none}
.pp-loader .spinner{width:46px;height:46px;border-radius:50%;border:4px solid rgba(255,255,255,.12);border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.pp-loader-t{color:var(--muted)}
.pp-progress{width:min(320px,70vw);height:10px;border-radius:999px;background:rgba(255,255,255,.1);overflow:hidden}
.pp-progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:999px;transition:width .2s}
.pp-pct{color:var(--text);font-weight:700}

/* ---- Memory ---- */
.pp-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;width:100%;max-width:520px}
.pp-cardm{aspect-ratio:3/4;border-radius:10px;background:var(--card2);display:flex;align-items:center;justify-content:center;font-size:40px;cursor:pointer;user-select:none;border:none;transition:transform .15s,background .15s}
.pp-cardm:hover{transform:scale(1.03)}
.pp-cardm.flipped,.pp-cardm.matched{background:#f4f6ff}
.pp-cardm.matched{outline:3px solid var(--accent);cursor:default}
.pp-cardm span{opacity:0;transition:opacity .12s}
.pp-cardm.flipped span,.pp-cardm.matched span{opacity:1}

/* ---- 2048 ---- */
.pp2048{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;width:100%;max-width:480px;background:var(--card2);padding:10px;border-radius:12px}
.pp2048 .cell{aspect-ratio:1;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:clamp(1rem,4vw,1.8rem);background:rgba(255,255,255,.06);color:#eef1ff}
.pp2048 .t2{background:#eee4da;color:#776e65}
.pp2048 .t4{background:#ede0c8;color:#776e65}
.pp2048 .t8{background:#f2b179;color:#fff}
.pp2048 .t16{background:#f59563;color:#fff}
.pp2048 .t32{background:#f67c5f;color:#fff}
.pp2048 .t64{background:#f65e3b;color:#fff}
.pp2048 .t128{background:#edcf72;color:#fff}
.pp2048 .t256{background:#edcc61;color:#fff}
.pp2048 .t512{background:#edc850;color:#fff}
.pp2048 .t1024{background:#edc53f;color:#fff}
.pp2048 .t2048{background:#edc22e;color:#fff}
.pp2048 .tsuper{background:#3c3a32;color:#fff}

/* ---- TicTacToe ---- */
.ppttt{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;max-width:360px}
.ppttt .cell{aspect-ratio:1;border-radius:12px;background:var(--card2);font-size:52px;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;color:var(--text)}
.ppttt .cell.x{color:var(--accent2)}
.ppttt .cell.o{color:#ff7ab6}
.ppttt .cell:disabled{cursor:default}

@media (max-width:1100px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .pp-side{display:none}
  main{grid-column:1;grid-row:1}
}