*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}:root{--bg:#0b1020;--card:#151d31;--text:#f7f9fc;--muted:#98a4ba;--border:rgba(255,255,255,.08)}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}body{min-height:100vh}.app{max-width:760px;margin:auto;padding:18px 16px 24px}.hero{display:flex;align-items:center;gap:14px;padding:22px 20px;border:1px solid var(--border);border-radius:24px;background:radial-gradient(circle at 90% 10%,rgba(124,92,255,.3),transparent 35%),radial-gradient(circle at 10% 100%,rgba(91,140,255,.2),transparent 38%),#141c30;box-shadow:0 16px 40px rgba(0,0,0,.22)}.hero-icon{width:58px;height:58px;display:grid;place-items:center;border-radius:18px;font-size:31px;background:rgba(255,255,255,.09)}.hero h1{margin:0 0 5px;font-size:26px}.hero p{margin:0;color:var(--muted);font-size:14px}main{margin-top:24px}.section-title{display:flex;gap:8px;margin:0 3px 12px;font-size:17px;font-weight:700}.count{min-width:22px;height:22px;padding:0 7px;display:inline-grid;place-items:center;border-radius:999px;color:#cbd7ff;background:rgba(91,140,255,.16);font-size:12px}.games{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.game{position:relative;overflow:hidden;padding:0;border:1px solid var(--border);border-radius:20px;background:var(--card);color:var(--text);text-align:left;cursor:pointer}.game:active{transform:scale(.97)}.game-cover{aspect-ratio:16/9;display:grid;place-items:center;background:radial-gradient(circle at 50% 35%,rgba(255,255,255,.12),transparent 42%),linear-gradient(135deg,rgba(91,140,255,.25),rgba(124,92,255,.18))}.game-info{padding:13px 14px 15px}.game-name{margin:0;font-size:16px}.game-desc{margin:5px 0 0;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.play{position:absolute;right:12px;bottom:12px;width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:rgba(91,140,255,.18)}footer{padding:24px 0 4px;color:#657189;text-align:center;font-size:12px}@media(min-width:650px){.games{grid-template-columns:repeat(3,minmax(0,1fr))}}
/* 统一风格游戏图标 */
.game-icon{
  width:76px;height:76px;display:grid;place-items:center;
  border-radius:22px;position:relative;
  font-weight:900;letter-spacing:-2px;
  filter:drop-shadow(0 8px 14px rgba(0,0,0,.22));
}
.icon-tetris{
  background:linear-gradient(135deg,#58a6ff,#7657e8);
  font-size:0;
}
.icon-tetris:before{
  content:"";width:16px;height:16px;border-radius:4px;
  background:#fff;
  box-shadow:18px 0 #fff,36px 0 #fff,18px 18px #fff,36px 18px #fff,0 36px #fff;
  transform:translate(-18px,-18px);
}
.icon-xiangqi{
  background:radial-gradient(circle at 50% 42%,#f8e7bd,#d3a45f);
  border:3px solid #8a6035;
  color:#b52e28;font-family:serif;font-size:40px;letter-spacing:0;
}
.icon-xiangqi:before{content:"象";}
.icon-xiangqi{font-size:0}
.icon-xiangqi:before{font-size:40px}
.icon-2048{
  background:linear-gradient(145deg,#667fa8,#91a8c8);
  color:#fff;font-size:24px;letter-spacing:0;
  border:2px solid rgba(255,255,255,.35);
  text-shadow:0 2px 3px rgba(0,0,0,.2);
}
.icon-2048:after{
  content:"";position:absolute;inset:10px;border:1px solid rgba(255,255,255,.28);
  border-radius:14px;
}
.icon-gomoku{
  background:radial-gradient(circle at 35% 32%,#555,#090909 58%);
  border:2px solid rgba(255,255,255,.18);
}
.icon-gomoku:before,.icon-gomoku:after{
  content:"";position:absolute;border-radius:50%;
  width:30px;height:30px;top:23px;
  box-shadow:inset 0 2px 3px rgba(255,255,255,.35),0 4px 7px rgba(0,0,0,.3);
}
.icon-gomoku:before{left:12px;background:#101010}
.icon-gomoku:after{right:12px;background:#f4f4f4}
@media(max-width:420px){.game-icon{width:66px;height:66px}.icon-tetris:before{transform:scale(.85) translate(-18px,-18px)}.icon-xiangqi:before{font-size:35px}.icon-2048{font-size:21px}}


/* 数独：做成真正的 3×3 数独方格 */
.icon-sudoku{
  background:linear-gradient(145deg,#5f8fe8,#5968d8);
  border:2px solid rgba(255,255,255,.28);
  border-radius:20px;
  color:#fff;
  font-size:0;
  position:relative;
  overflow:hidden;
}
.icon-sudoku:before{
  content:"";
  position:absolute;
  width:54px;height:54px;
  left:11px;top:11px;
  border:2px solid rgba(255,255,255,.9);
  border-radius:8px;
  background:
    linear-gradient(to right,
      transparent 31%,rgba(255,255,255,.82) 31%,rgba(255,255,255,.82) 35%,
      transparent 35%,transparent 65%,rgba(255,255,255,.82) 65%,rgba(255,255,255,.82) 69%,transparent 69%),
    linear-gradient(to bottom,
      transparent 31%,rgba(255,255,255,.82) 31%,rgba(255,255,255,.82) 35%,
      transparent 35%,transparent 65%,rgba(255,255,255,.82) 65%,rgba(255,255,255,.82) 69%,transparent 69%);
}
.icon-sudoku:after{
  content:"1 2 3";
  position:absolute;
  left:18px;top:21px;
  color:#fff;
  font-size:12px;
  line-height:18px;
  letter-spacing:10px;
  font-weight:900;
  white-space:nowrap;
  text-shadow:0 1px 2px rgba(0,0,0,.2);
}

/* 24点：四张扑克牌 + 24，避免看起来像空白按钮 */
.icon-point24{
  background:linear-gradient(145deg,#bd7b39,#8e4e25);
  border:3px solid #e0ad68;
  border-radius:20px;
  color:#fff;
  font-size:0;
  position:relative;
  overflow:visible;
  box-shadow:0 8px 14px rgba(0,0,0,.18);
}
.icon-point24:before{
  content:"2     4";
  position:absolute;
  left:8px;top:9px;
  width:56px;height:55px;
  padding-top:8px;
  border-radius:7px;
  background:#fff;
  color:#c33b36;
  font-size:17px;
  line-height:17px;
  font-weight:900;
  letter-spacing:4px;
  text-align:center;
  transform:rotate(-7deg);
  box-shadow:0 2px 4px rgba(0,0,0,.25);
}
.icon-point24:after{
  content:"3     6";
  position:absolute;
  left:13px;top:14px;
  width:56px;height:55px;
  padding-top:8px;
  border-radius:7px;
  background:#fff;
  color:#222;
  font-size:17px;
  line-height:17px;
  font-weight:900;
  letter-spacing:4px;
  text-align:center;
  transform:rotate(8deg);
  box-shadow:0 2px 4px rgba(0,0,0,.22);
  z-index:-1;
}
@media(max-width:420px){
  .icon-sudoku:before{width:48px;height:48px;left:9px;top:9px}
  .icon-sudoku:after{left:15px;top:17px;font-size:10px;letter-spacing:8px}
}