:root{--color-bg: #f5f5f7;--color-surface: #ffffff;--color-text: #1d1d1f;--color-text-muted: #6e6e73;--color-primary: #0071e3;--color-primary-hover: #0077ed;--color-border: rgba(0, 0, 0, .08);--color-card-shadow: 0 2px 12px rgba(0, 0, 0, .06);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--touch-min: 44px;--content-max: 640px;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}html,body{margin:0;width:100%;min-height:100%;font-family:var(--font-sans);font-size:16px;line-height:1.5;color:var(--color-text);background:var(--color-bg)}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto;display:block}.app-header{position:sticky;top:0;z-index:10;background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:12px 16px}.app-header-inner{max-width:var(--content-max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}.app-title{font-size:1.25rem;font-weight:600;margin:0;color:var(--color-text)}.app-title a{color:inherit;text-decoration:none}.app-title a:hover{text-decoration:none;opacity:.85}.main-content{max-width:var(--content-max);margin:0 auto;padding:16px;padding-bottom:2rem}button,[role=button],a.button{min-height:var(--touch-min);min-width:var(--touch-min);display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;font:inherit;cursor:pointer;border:none;border-radius:var(--radius-sm);transition:background .2s,transform .1s}button:active,[role=button]:active{transform:scale(.98)}.game-card{display:block;background:var(--color-surface);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--color-card-shadow);border:1px solid var(--color-border);text-decoration:none;color:inherit;transition:transform .2s,box-shadow .2s}.game-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 4px 20px #00000014}.game-card-cover{aspect-ratio:16/10;background:var(--color-bg);overflow:hidden}.game-card-cover img{width:100%;height:100%;object-fit:cover}.game-card-body{padding:14px 16px}.game-card-title{margin:0 0 6px;font-size:1.1rem;font-weight:600;color:var(--color-text)}.game-card-desc{margin:0 0 10px;font-size:.9rem;color:var(--color-text-muted);line-height:1.45}.game-card-tags{display:flex;flex-wrap:wrap;gap:6px}.game-card-tag{font-size:.75rem;padding:4px 8px;background:var(--color-bg);border-radius:var(--radius-sm);color:var(--color-text-muted)}.search-bar{display:flex;align-items:center;gap:10px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:10px 14px;margin-bottom:16px}.search-bar-icon{font-size:1.1rem;opacity:.6}.search-bar-input{flex:1;min-width:0;border:none;background:none;font:inherit;font-size:1rem;color:var(--color-text);outline:none}.search-bar-input::placeholder{color:var(--color-text-muted)}.search-bar-clear{min-width:32px;min-height:32px;padding:0;font-size:1.25rem;line-height:1;color:var(--color-text-muted);background:none;border:none;cursor:pointer;border-radius:var(--radius-sm)}.search-bar-clear:hover{color:var(--color-text);background:var(--color-bg)}.category-tabs{margin-bottom:20px;-webkit-overflow-scrolling:touch}.category-tabs-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}.category-tabs-scroll::-webkit-scrollbar{display:none}.category-tab{flex-shrink:0;display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:var(--radius-md);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);font-size:.95rem;text-decoration:none;transition:background .2s,border-color .2s}.category-tab:hover{text-decoration:none;background:var(--color-bg)}.category-tab--active{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.category-tab--active:hover{background:var(--color-primary-hover);color:#fff}.category-tab-icon{font-size:1.1em}.home-content{padding-top:8px}.game-grid{display:grid;grid-template-columns:1fr;gap:16px}@media(min-width:500px){.game-grid{grid-template-columns:repeat(2,1fr)}}.game-grid-empty{grid-column:1 / -1;text-align:center;color:var(--color-text-muted);padding:2rem;margin:0}.category-page{padding-top:8px}.back-link{display:inline-flex;align-items:center;margin-bottom:16px;font-size:.95rem;color:var(--color-primary);text-decoration:none;min-height:var(--touch-min)}.back-link:hover{text-decoration:underline}.category-page-title{display:flex;align-items:center;gap:8px;margin:0 0 20px;font-size:1.5rem;font-weight:600;color:var(--color-text)}.category-page-icon{font-size:1.4em}.game-detail-wrap{display:flex;flex-direction:column;align-items:center;gap:16px;width:100%}.game-how-to-play{width:100%;max-width:360px}.game-how-to-play-trigger{display:flex;align-items:center;justify-content:space-between;width:100%;padding:12px 16px;font:inherit;font-size:.95rem;color:var(--color-text-muted);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;min-height:var(--touch-min);transition:background .2s,color .2s}.game-how-to-play-trigger:hover{color:var(--color-text);background:var(--color-bg)}.game-how-to-play-icon{font-size:.75rem;opacity:.8}.game-how-to-play-content{margin-top:8px;padding:14px 16px;font-size:.9rem;line-height:1.6;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md)}.game-placeholder{text-align:center;padding:2rem;color:var(--color-text-muted)}.game-placeholder a{display:inline-block;margin-top:1rem}