:root{--bg: #f2f5f1;--panel: #ffffff;--ink: #22402f;--muted: #7d8a80;--brand: #3e7c4f;--brand-deep: #2c5e3a;--ok: #2fa35c;--ok-bg: #e6f5ec;--err: #d9534f;--err-bg: #fdeceb;--warn: #e2703a;--border: #e0e7e0;--radius: 14px;--shadow: 0 2px 10px rgba(34, 64, 47, .06);font-family:Nunito,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;-webkit-font-smoothing:antialiased}.app{min-height:100%;display:flex;flex-direction:column;max-width:1080px;margin:0 auto;padding:0 20px 24px}button{font-family:inherit;cursor:pointer}kbd{font-family:inherit;font-size:11px;padding:1px 6px;border-radius:6px;background:#22402f0f;border:1px solid var(--border);color:var(--muted);margin-left:4px}.topbar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:14px 0 12px;border-bottom:1px solid 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var(--border);padding:0 1px 4px;color:transparent;position:relative;transition:border-color .1s}.word.current .slot.caret{border-bottom-color:var(--brand)}.word.current .slot.caret:after{content:"";position:absolute;left:50%;bottom:-1px;transform:translate(-50%);width:4px;height:4px;border-radius:50%;background:var(--brand);animation:blink 1s infinite}@keyframes blink{50%{opacity:0}}.typed-ch{color:var(--ok);border-bottom-color:var(--ok)}.revealed-ch{color:var(--warn);border-bottom-color:var(--warn)}.word.flash{animation:shake .3s}.slot.err-ch{border-bottom-color:var(--err)!important}.slot.err-ch:after{background:var(--err)!important}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-3px)}75%{transform:translate(3px)}}.word-punct{color:var(--muted);font-size:24px;padding-bottom:4px}.punct-only{color:var(--muted);font-size:24px;align-self:flex-end}.result-board{width:100%;max-width:960px;display:flex;flex-direction:column;gap:16px;animation:fade-in .25s}@keyframes 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rgba(0,0,0,.5);z-index:4;pointer-events:none}.combo-pop{position:absolute;right:16px;bottom:14px;color:#ffd76a;font-weight:800;font-size:17px;text-shadow:0 0 12px rgba(255,215,106,.6);animation:combo-in .25s}@keyframes combo-in{0%{transform:scale(1.6);opacity:0}}.game-countdown{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:96px;font-weight:800;color:#ffd76a;text-shadow:0 4px 30px rgba(0,0,0,.6);pointer-events:none;z-index:4;animation:countdown-pop 1s infinite}@keyframes countdown-pop{0%{transform:scale(1.35);opacity:.4}}.game-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#090c2299;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:6;animation:fade-in .2s}.game-overlay-card{background:#fff;color:var(--ink);border-radius:18px;padding:26px 34px;display:flex;flex-direction:column;align-items:center;gap:10px;box-shadow:0 16px 50px 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