:root{color-scheme:dark;font-family:system-ui,-apple-system,PingFang SC,Microsoft YaHei,sans-serif;--arena-bg: #0b1020;--arena-panel: #131a2e;--arena-border: #2a3554;--neon-green: #34d399;--neon-yellow: #fbbf24;--text-primary: #e8ecf6;--text-dim: #9aa4bf}body{margin:0;background:var(--arena-bg);color:var(--text-primary)}.app-shell{display:flex;flex-direction:column;align-items:center;min-height:100vh;padding:12px;box-sizing:border-box}.app-shell h1{font-size:1.4rem;margin:8px 0;color:var(--neon-green);text-shadow:0 0 12px #34d39966}.stats-bar{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin:4px 0 12px;font-size:.9rem;color:var(--text-dim)}.game-board{width:100%;max-width:960px}.board-topline{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}.surrender-confirm{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;color:var(--text-dim)}.guess-input{position:relative;margin:8px 0}.guess-input input{width:100%;box-sizing:border-box;padding:12px;font-size:1rem;color:var(--text-primary);background:var(--arena-panel);border:2px solid var(--arena-border);border-radius:8px}.guess-input input:focus{outline:none;border-color:var(--neon-green);box-shadow:0 0 8px #34d39955}.suggestions{position:absolute;z-index:10;left:0;right:0;margin:2px 0 0;padding:0;list-style:none;border:1px solid var(--arena-border);border-radius:8px;background:var(--arena-panel);overflow:hidden}.suggestions button{display:block;width:100%;min-height:44px;padding:10px 12px;text-align:left;font-size:1rem;color:var(--text-primary);background:none;border:none;border-bottom:1px solid var(--arena-border);cursor:pointer}.suggestions button:hover,.suggestions button:focus-visible{background:#34d39922}button{min-height:44px;padding:10px 16px;font-size:1rem;color:var(--text-primary);border-radius:8px;border:1px solid var(--arena-border);background:var(--arena-panel);cursor:pointer}button:hover{border-color:var(--neon-green)}.btn-secondary{opacity:.75;font-size:.9rem}.btn-danger{border-color:#ef4444;color:#fca5a5}.btn-danger:hover{border-color:#ef4444;background:#ef444422}.guess-table-wrap{width:100%;overflow-x:auto;margin-top:12px}.guess-table{border-collapse:collapse;min-width:800px;width:100%}.guess-table th,.guess-table td{border:1px solid var(--arena-border);padding:6px 8px;text-align:center;font-size:.85rem}.guess-table th{color:var(--text-dim);background:var(--arena-panel)}.cell-name{white-space:nowrap;font-weight:600}.cell-correct{background:#065f46;color:#d1fae5;text-shadow:0 0 6px #34d39988}.cell-close{background:#92400e;color:#fef3c7;text-shadow:0 0 6px #fbbf2488}.cell-wrong{background:#1f2430;color:#6b7280}.match-symbol{margin-left:4px;font-weight:700}.cell-teams{max-width:260px}.pos-chip{display:inline-block;margin:2px;padding:2px 6px;border-radius:4px;font-size:.78rem;white-space:nowrap;border:1px solid #ffffff22;background:var(--arena-panel)}.pos-chip.cell-correct{box-shadow:0 0 0 2px var(--neon-green),0 0 8px #34d39966;color:#d1fae5}.pos-chip.cell-wrong{opacity:.55}.pos-chip.cell-close{box-shadow:0 0 0 2px var(--neon-yellow)}.team-chip{display:inline-block;margin:2px;padding:2px 6px;border-radius:4px;font-size:.78rem;white-space:nowrap;border:1px solid #ffffff22}.team-chip.cell-correct{box-shadow:0 0 0 2px var(--neon-green),0 0 8px #34d39966}.team-chip.cell-wrong{opacity:.55}.team-chip.cell-close{box-shadow:0 0 0 2px var(--neon-yellow)}.end-banner{margin:12px 0;text-align:center}.share-text{display:inline-block;text-align:left;padding:12px;color:var(--text-primary);background:var(--arena-panel);border:1px solid var(--arena-border);border-radius:8px;font-size:1rem;line-height:1.6}.end-banner button{margin:4px}.mode-select{display:flex;flex-direction:column;gap:12px;width:100%;max-width:420px}.mode-card{padding:16px;background:var(--arena-panel);border:1px solid var(--arena-border);border-radius:12px;text-align:center}.mode-card h2{margin:0 0 8px;font-size:1.1rem;color:var(--neon-green)}.mode-card p{margin:4px 0;color:var(--text-dim);font-size:.9rem}.mode-card-stats{font-size:.8rem}.mode-card button{margin-top:8px;width:100%;border-color:var(--neon-green)}.stats-mode{color:var(--neon-green);font-weight:600}@media(min-width:768px){.app-shell h1{font-size:1.8rem}.guess-table th,.guess-table td{padding:8px 12px;font-size:.95rem}}