:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:#182e29;background:#e9ede5;font-synthesis:none;--green:#244e41;--muted:#66766e;--paper:#f7f8f2;--line:#dce2d9}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;min-height:44px;border:0;background:none;color:inherit}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,canvas:focus-visible{outline:3px solid #c17b42;outline-offset:3px}a{color:var(--green)}.app{max-width:430px;margin:auto;background:var(--paper);min-height:100dvh;position:relative}.demo-label{font-size:12px;text-align:center;letter-spacing:.5px;padding:9px 8px;background:#e6eadf;color:#506257}main{padding:0 24px 106px;min-height:calc(100dvh - 34px)}header{height:82px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{font-weight:800;font-size:22px;letter-spacing:-1px}.brand-mark{display:inline-grid;place-items:center;width:30px;height:30px;border:2px solid var(--green);border-radius:8px;margin-right:9px;font-size:16px}.avatar{display:grid;place-items:center;border-radius:50%;width:42px;height:42px;flex:none;background:#e0e8d6;font-weight:700;color:#345242}.online{display:flex;align-items:center;gap:7px;font-size:12px}.dot{width:7px;height:7px;background:#44785b;border-radius:50%;display:inline-block}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--muted);margin:14px 0}h1{font-size:32px;line-height:1.3;letter-spacing:-1px;margin:10px 0 12px}h2{font-size:21px;line-height:1.4;margin:0 0 8px}h3{font-size:17px;margin:0 0 8px}p{font-size:14px;line-height:1.8;margin:8px 0;color:var(--muted)}.intro{margin-bottom:27px}.section-label{display:flex;justify-content:space-between;align-items:center;margin:24px 0 14px;font-size:14px;font-weight:700}.section-label small{font-weight:400;color:var(--muted)}.game{margin:0 0 22px}.cover{height:174px;border-radius:18px;background:#ddea90;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}.cover.drawing{background:#f0c9b0}.cover .corner{position:absolute;left:16px;top:14px;font-size:12px;letter-spacing:1.5px;font-weight:700}.cover .stamp{position:absolute;right:15px;bottom:14px;border:1px solid currentColor;border-radius:50%;width:33px;height:33px;display:grid;place-items:center;font-size:12px}.number-art{display:flex;gap:8px;transform:rotate(-8deg)}.number-art span{font-family:monospace;font-size:51px;padding:4px 10px;border-radius:9px;background:#f7f8e9;border:1px solid #adbd63;box-shadow:0 5px 0 #bbc972}.number-art span:nth-child(2){transform:translateY(-10px) rotate(11deg)}.number-art span:last-child{background:#284c3a;color:#e5efb7;transform:rotate(7deg)}.drawing-art{width:220px;height:143px;stroke:#634532;fill:none;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.game-row{display:flex;align-items:center;justify-content:space-between;padding-top:13px}.game-row h2{font-size:19px;margin:0}.game-row p{font-size:12px;margin:4px 0}.round-arrow{border:1px solid #bfcbbc;border-radius:50%;width:44px}.join-link{width:100%;border-top:1px solid var(--line);padding:20px 0;text-align:left;display:flex;justify-content:space-between;font-size:14px}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,430px);background:#f7f8f2f5;backdrop-filter:blur(12px);border-top:1px solid var(--line);display:flex;padding:9px 24px calc(10px + env(safe-area-inset-bottom));z-index:5;gap:18px}.bottom-nav button{flex:1;border-radius:12px;display:flex;align-items:center;justify-content:center;gap:9px;font-size:14px;color:var(--muted)}.bottom-nav button.active{background:#e3eadc;color:var(--green);font-weight:700}.icon{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.back{padding:0;display:flex;align-items:center;gap:7px;font-size:14px}.quiet{font-size:12px;color:var(--muted)}.primary,.secondary{width:100%;min-height:52px;border-radius:12px;padding:13px 18px;font-weight:600;margin-top:12px}.primary{background:var(--green);color:#fff}.secondary{border:1px solid #c7d1c2;background:transparent}.form-section{padding:23px 0;border-bottom:1px solid var(--line)}label{display:block;font-size:14px;font-weight:600;margin-bottom:10px}.options{display:flex;gap:12px}.option{flex:1;border:1px solid #bcc9b7;border-radius:10px;padding:12px}.option.selected{background:#e4ebdc;border:2px solid var(--green)}.mini-cover{height:120px;margin:20px 0}.mini-cover .number-art{scale:.75}.error{color:#a63b2e;min-height:22px;font-size:13px;margin:9px 0}.input{width:100%;border:1px solid #bcc9b7;border-radius:11px;background:#fff;padding:14px;min-height:52px;color:inherit}.room-input{font:32px monospace;letter-spacing:8px;text-align:center}.notice{border-left:2px solid #aabd9b;padding-left:12px;margin:22px 0;font-size:12px}.room-code{font:48px monospace;letter-spacing:5px;margin:16px 0 8px}.center{text-align:center}.person{display:flex;align-items:center;gap:13px;padding:18px 0;border-bottom:1px solid var(--line)}.person .details{flex:1}.person p{font-size:12px;margin:2px 0}.person strong{font-size:15px}.badge{font-size:12px;border:1px solid #c2cdbb;border-radius:7px;padding:6px 8px}.room-people{margin:24px 0}.empty-avatar{background:transparent;border:1px dashed #a2b399;color:#83977a}.subtle{display:block;text-align:center;font-size:12px;text-decoration:underline;width:100%;margin-top:12px}.friend-row{width:100%;text-align:left;padding:0}.chat-area{min-height:360px;display:flex;flex-direction:column;gap:15px;padding:14px 0}.chat-time{text-align:center;color:var(--muted);font-size:12px}.bubble{padding:12px 15px;max-width:85%;align-self:flex-start;background:#e8ece1;border-radius:3px 15px 15px 15px;font-size:14px;line-height:1.6;overflow-wrap:anywhere}.bubble.me{align-self:flex-end;background:#244e41;color:white;border-radius:15px 3px 15px 15px}.invite{border:1px solid var(--line);border-radius:14px;background:white;padding:18px;max-width:95%}.invite p{font-size:12px}.composer{display:flex;gap:8px;position:sticky;bottom:8px;background:var(--paper);padding-top:12px}.composer .input{min-width:0;flex:1}.send{background:var(--green);color:white;border-radius:11px;padding:0 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8px;background:#e5edcf;border-radius:5px}.canvas-wrap{border:1px solid #cbd5c2;border-radius:13px;overflow:hidden;background:#fff;margin:14px 0}.canvas-wrap canvas{width:100%;height:auto;aspect-ratio:1.2;display:block;touch-action:none}.tools{display:flex;gap:6px;align-items:center;flex-wrap:wrap}.swatch{width:44px;height:44px;border-radius:50%;border:3px solid var(--paper);box-shadow:inset 0 0 0 1px #0002}.swatch.selected{outline:2px solid var(--green);outline-offset:-2px}.tool{border:1px solid #c4d1bd;border-radius:9px;padding:0 10px;font-size:12px}.tool.selected{background:#e0e8d6}.tool select{border:0;background:transparent;font-size:12px;max-width:75px}.words{display:grid;gap:12px;margin:28px 0}.word{font-size:20px;padding:18px;border:1px solid var(--line);border-radius:12px;background:white;text-align:left}.progress{height:4px;background:#e3e8dd;border-radius:5px;margin-bottom:20px}.progress>div{height:100%;background:var(--green);transition:width 1s linear}.result-art{font:90px 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0 0;overflow:hidden}.prototype-bar{margin-top:-28px;margin-bottom:25px}}@media(max-width:350px){main{padding-left:17px;padding-right:17px}h1{font-size:29px}.room-code{font-size:40px;letter-spacing:3px}.slot{width:52px}.cover{height:160px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}