:root{--ink: #19323c;--muted: #61737a;--surface: #fffdf8;--surface-strong: #fff7df;--field: #dfeecf;--left: #1d6f8f;--left-dark: #125875;--right: #d66b2f;--right-dark: #ae4f20;--rope: #805c3d;--correct: #2f8f5b;--wrong: #b84b4b;--line: rgba(25, 50, 60, .16);--shadow: 0 18px 50px rgba(25, 50, 60, .12);font-family:Inter,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:var(--ink);background:#f6f4ec;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;color:var(--ink);background:linear-gradient(180deg,#f6f4ecdb,#f6f4ecf5),radial-gradient(circle at 10% 8%,rgba(214,107,47,.12),transparent 24%),repeating-linear-gradient(90deg,rgba(29,111,143,.08) 0,rgba(29,111,143,.08) 1px,transparent 1px,transparent 44px)}button{font:inherit}.app-shell{min-height:100vh;padding:calc(24px + env(safe-area-inset-top)) calc(24px + env(safe-area-inset-right)) calc(24px + env(safe-area-inset-bottom)) calc(24px + env(safe-area-inset-left))}.game-container{display:flex;width:100%;min-height:calc(100vh - 48px);margin:0 auto;flex-direction:column;gap:16px}.top-bar{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.game-title{margin:0;font-size:clamp(2rem,4vw,4.6rem);font-weight:900;line-height:.98;letter-spacing:0}.game-subtitle{max-width:720px;margin:8px 0 0;color:var(--muted);font-size:clamp(1rem,1.5vw,1.24rem);line-height:1.45}.status-row{display:flex;min-width:fit-content;flex-wrap:wrap;gap:8px;justify-content:flex-end}.status-badge{display:inline-flex;min-height:40px;align-items:center;gap:7px;border:1px solid transparent;border-radius:999px;padding:8px 13px;font-size:1rem;font-weight:900;line-height:1;white-space:nowrap}.status-badge.neutral{color:var(--ink);background:#19323c17}.status-badge.left{color:var(--left-dark);background:#1d6f8f1f}.status-badge.right{color:var(--right-dark);background:#d66b2f21}.status-badge.danger{color:#fff;background:var(--wrong)}.time-progress{overflow:hidden;height:10px;border-radius:999px;background:#19323c1f}.time-progress span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--left),#36a978);transition:width .24s ease}.time-progress.danger span{background:linear-gradient(90deg,var(--wrong),#e18848)}.setup-panel{display:flex;border:1px solid var(--line);border-radius:8px;padding:16px;flex-direction:column;gap:14px;background:linear-gradient(180deg,#fffdf8f5,#fff7dfc7),var(--surface);box-shadow:var(--shadow)}.setup-header{display:flex;align-items:center;justify-content:space-between;gap:16px}.setup-kicker{margin:0 0 4px;color:var(--left-dark);font-size:.92rem;font-weight:950}.setup-header h2{margin:0;font-size:clamp(1.4rem,2.4vw,2.2rem);font-weight:950;line-height:1.12;letter-spacing:0}.set-grid{display:grid;grid-template-columns:repeat(5,minmax(160px,1fr));gap:10px}.set-card{display:flex;min-height:132px;align-items:flex-start;border:2px solid rgba(25,50,60,.13);border-radius:8px;padding:13px;flex-direction:column;gap:8px;color:var(--ink);background:#ffffffb8;box-shadow:0 8px 16px #19323c14;text-align:left;cursor:pointer;transition:border-color .16s ease,transform .16s ease,box-shadow .16s ease,background-color .16s ease}.set-card:hover{transform:translateY(-2px);border-color:#1d6f8f6b}.set-card.selected{border-color:var(--left);background:#1d6f8f17;box-shadow:0 14px 26px #1d6f8f26}.set-title{font-size:1.22rem;font-weight:950;line-height:1.2}.set-meta{display:flex;flex-wrap:wrap;gap:6px}.set-pinyin{display:inline-flex;min-height:26px;align-items:center;border-radius:999px;padding:3px 9px;color:var(--right-dark);background:#d66b2f1f;font-weight:900}.set-count{display:inline-flex;min-height:26px;align-items:center;border-radius:999px;padding:3px 9px;color:var(--left-dark);background:#1d6f8f1a;font-weight:900}.set-description{color:var(--muted);font-size:.92rem;font-weight:700;line-height:1.38}.play-layout{display:grid;grid-template-columns:minmax(300px,.82fr) minmax(560px,1.7fr) minmax(300px,.82fr);flex:1;gap:16px;align-items:stretch}.question-panel,.arena{border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:var(--shadow)}.question-panel{display:flex;min-height:330px;padding:20px;align-items:center;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}.question-content{display:flex;width:100%;flex-direction:column;gap:14px}.question-panel.active{border-color:#19323c5c;transform:translateY(-2px);box-shadow:0 22px 58px #19323c2e}.question-panel.left.active{outline:3px solid rgba(29,111,143,.18)}.question-panel.right.active{outline:3px solid rgba(214,107,47,.2)}.question-panel.correct{border-color:#2f8f5bc7}.question-panel.wrong{border-color:#b84b4bc7}.panel-header{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.panel-title{margin:0;color:var(--muted);font-size:.95rem;font-weight:900}.question-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}.question-count,.difficulty-tag,.blank-count{display:inline-flex;min-height:28px;align-items:center;border-radius:999px;padding:4px 10px;color:var(--ink);background:#19323c14;font-size:.86rem;font-weight:900;white-space:nowrap}.difficulty-tag{color:var(--right-dark);background:#d66b2f1f}.blank-count{color:var(--left-dark);background:#1d6f8f1a}.question-prompt{margin:0;border-left:4px solid rgba(29,111,143,.32);padding:8px 10px;border-radius:8px;color:var(--muted);background:#1d6f8f0f;font-size:.98rem;font-weight:800;line-height:1.45}.sentence{margin:0;color:var(--ink);font-size:clamp(1.4rem,2.5vw,2.25rem);font-weight:900;line-height:1.52}.blank{display:inline-flex;width:2.25em;height:1.5em;margin:0 .14em;align-items:center;justify-content:center;border:0;border-bottom:4px solid currentColor;border-radius:8px 8px 0 0;color:inherit;background:#19323c0f;font-size:1em;font-weight:950;line-height:1;cursor:pointer;vertical-align:baseline;transition:background-color .14s ease,box-shadow .14s ease,color .14s ease}.blank.active{color:var(--left-dark);background:#1d6f8f24;box-shadow:inset 0 0 0 2px #1d6f8f2e}.right .blank.active{color:var(--right-dark);background:#d66b2f26;box-shadow:inset 0 0 0 2px #d66b2f2e}.blank.filled{background:#2f8f5b1c}.blank:disabled{cursor:default}.hint-text{min-height:42px;margin:0;color:var(--muted);font-size:1.02rem;line-height:1.45}.question-panel.correct .hint-text{color:var(--correct);font-weight:900}.question-panel.wrong .hint-text{color:var(--wrong);font-weight:900}.arena{position:relative;display:flex;overflow:hidden;min-height:430px;padding:16px;flex-direction:column;gap:10px}.arena-score{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-weight:900}.arena-field{position:relative;display:flex;overflow:hidden;min-height:310px;flex:1;align-items:center;justify-content:center;border:1px solid rgba(25,50,60,.13);border-radius:8px;background:linear-gradient(180deg,#fff6,#fff0),linear-gradient(0deg,#2f8f5b1a,#2f8f5b1a),var(--field)}.arena-field:before{position:absolute;right:0;bottom:0;left:0;height:46%;content:"";background:repeating-linear-gradient(-12deg,rgba(47,143,91,.14) 0,rgba(47,143,91,.14) 8px,transparent 8px,transparent 22px)}.finish-line{position:absolute;top:24px;bottom:24px;left:50%;width:4px;border-radius:999px;background:#19323c38;transform:translate(-50%)}.rope-scene{position:relative;z-index:1;display:grid;width:94%;grid-template-columns:minmax(170px,1fr) minmax(150px,22vw) minmax(170px,1fr);align-items:end;transition:transform .26s cubic-bezier(.2,.9,.22,1.2)}.kid-team{display:flex;min-width:0;gap:clamp(8px,1.6vw,16px);align-items:flex-end}.left-team{justify-content:flex-end}.right-team{justify-content:flex-start;transform:scaleX(-1)}.kid{position:relative;width:clamp(40px,3.7vw,68px);height:clamp(110px,9vw,150px);transform-origin:50% 100%}.kid.pulling{animation:tug .62s ease-in-out infinite}.kid.celebrating{animation:cheer-jump .72s ease-in-out infinite}.kid.celebrating .kid-head{animation:cheer-head .72s ease-in-out infinite}.kid.celebrating .kid-body:before{transform:rotate(-58deg) translateY(-2px)}.kid.celebrating .kid-body:after{transform:rotate(58deg) translateY(-2px)}.arena.ended.winner-left .right-team .kid,.arena.ended.winner-right .left-team .kid{opacity:.64}.kid-head{position:absolute;top:0;left:50%;display:flex;width:48px;height:48px;align-items:center;justify-content:center;border:3px solid rgba(25,50,60,.18);border-radius:50%;background:#ffe2bd;color:var(--ink);font-size:1.2rem;font-weight:900;transform:translate(-50%)}.kid-body{position:absolute;top:49px;left:50%;width:38px;height:48px;border-radius:16px 16px 10px 10px;background:var(--left);transform:translate(-50%) skew(-6deg)}.right-team .kid-body{background:var(--right)}.kid-body:before,.kid-body:after{position:absolute;top:18px;width:34px;height:8px;border-radius:999px;background:var(--rope);content:""}.kid-body:before{right:26px;transform:rotate(-18deg)}.kid-body:after{left:26px;transform:rotate(18deg)}.kid-leg{position:absolute;top:92px;left:50%;width:11px;height:42px;border-radius:999px;background:#314d5a;transform-origin:50% 0}.left-leg{transform:translate(-16px) rotate(17deg)}.right-leg{transform:translate(6px) rotate(-22deg)}.rope{position:relative;height:16px;margin-bottom:74px;border-radius:999px;background:repeating-linear-gradient(45deg,#8f6a49 0,#8f6a49 8px,#704d33 8px,#704d33 16px);box-shadow:0 4px #19323c2e}.rope-knot{position:absolute;top:50%;left:50%;width:28px;height:28px;border:4px solid #704d33;border-radius:50%;background:#a77a50;transform:translate(-50%,-50%)}.arena-actions{display:flex;min-height:42px;align-items:center;justify-content:center;gap:8px}.game-action{display:inline-flex;min-height:42px;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;padding:10px 18px;font-weight:900;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease}.game-action:hover{transform:translateY(-1px)}.game-action:active{transform:translateY(1px)}.game-action.primary{color:#fff;box-shadow:0 10px 22px #19323c2e}.game-action.primary.left{background:var(--left)}.game-action.primary.right{background:var(--right)}.game-action.secondary{border:1px solid rgba(25,50,60,.2);color:var(--ink);background:#fff}.winner-chip{display:inline-flex;min-height:38px;align-items:center;gap:7px;border-radius:999px;padding:8px 12px;background:#19323c17;font-size:1rem;font-weight:900;white-space:nowrap}.winner-chip.left{color:var(--left-dark);background:#1d6f8f1f}.winner-chip.right{color:var(--right-dark);background:#d66b2f21}.choice-grid{display:grid;grid-template-columns:repeat(4,minmax(58px,1fr));gap:10px}.choice-button{min-height:66px;border:0;border-radius:8px;color:#fff;font-size:clamp(1.8rem,2.1vw,2.55rem);font-weight:900;line-height:1;cursor:pointer;box-shadow:0 10px 20px #19323c21;transition:transform .14s ease,filter .14s ease,opacity .14s ease}.choice-button.left{background:var(--left)}.choice-button.right{background:var(--right)}.choice-button:hover:not(:disabled){transform:translateY(-2px);filter:brightness(1.04)}.choice-button:active:not(:disabled){transform:translateY(1px)}.choice-button:disabled{cursor:not-allowed;opacity:.48}.victory-overlay{position:fixed;z-index:30;top:0;right:0;bottom:0;left:0;display:grid;overflow:hidden;place-items:center;padding:24px;background:#19323c2e;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:victory-fade-in .22s ease-out both}.victory-card{position:relative;z-index:2;display:flex;width:min(520px,92vw);align-items:center;border:1px solid rgba(25,50,60,.16);border-radius:8px;padding:28px;flex-direction:column;gap:12px;background:linear-gradient(180deg,#fffdf8fa,#fff7dffa),var(--surface);box-shadow:0 26px 90px #19323c47;text-align:center;animation:victory-card-pop .36s cubic-bezier(.18,.9,.24,1.18) both}.victory-icon{display:inline-flex;width:64px;height:64px;align-items:center;justify-content:center;border-radius:50%;color:#fff;background:var(--left);box-shadow:0 14px 28px #1d6f8f42}.victory-overlay.right .victory-icon{background:var(--right);box-shadow:0 14px 28px #d66b2f3d}.victory-overlay.draw .victory-icon{background:var(--correct);box-shadow:0 14px 28px #2f8f5b38}.victory-card h2{margin:0;font-size:clamp(2.2rem,6vw,4.4rem);font-weight:950;line-height:1;letter-spacing:0}.victory-card p{margin:0;color:var(--muted);font-size:1.08rem;font-weight:800;line-height:1.45}.victory-score{color:var(--ink)!important;font-size:1.2rem!important;font-weight:950!important}.fireworks{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.firework{position:absolute;width:12px;height:12px;border-radius:50%;background:radial-gradient(circle,#fff 0 14%,transparent 15%),conic-gradient(from 0deg,transparent 0deg 16deg,#f2c94c 16deg 23deg,transparent 23deg 60deg,#2f8f5b 60deg 68deg,transparent 68deg 120deg,#1d6f8f 120deg 128deg,transparent 128deg 190deg,#d66b2f 190deg 198deg,transparent 198deg 260deg,#b84b4b 260deg 268deg,transparent 268deg 360deg);filter:drop-shadow(0 0 10px rgba(255,255,255,.8));opacity:0;transform:scale(.15);animation:firework-burst 1.2s ease-out infinite}.firework-1{top:14%;left:16%;animation-delay:0ms}.firework-2{top:18%;right:18%;animation-delay:.16s}.firework-3{top:42%;left:9%;animation-delay:.32s}.firework-4{top:48%;right:10%;animation-delay:.48s}.firework-5{top:70%;left:22%;animation-delay:.64s}.firework-6{top:72%;right:22%;animation-delay:.8s}.firework-7{top:26%;left:50%;animation-delay:.96s}.firework-8{top:82%;left:50%;animation-delay:1.12s}@keyframes tug{0%,to{transform:rotate(-2deg) translateY(0)}50%{transform:rotate(3deg) translateY(2px)}}@keyframes cheer-jump{0%,to{transform:translateY(0) rotate(-1deg)}38%{transform:translateY(-24px) rotate(5deg)}68%{transform:translateY(-8px) rotate(-4deg)}}@keyframes cheer-head{0%,to{transform:translate(-50%) scale(1)}40%{transform:translate(-50%) scale(1.1)}}@keyframes victory-fade-in{0%{opacity:0}to{opacity:1}}@keyframes victory-card-pop{0%{opacity:0;transform:translateY(18px) scale(.92)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes firework-burst{0%{opacity:0;transform:scale(.12) rotate(0)}16%{opacity:1}72%{opacity:.95;transform:scale(7.4) rotate(38deg)}to{opacity:0;transform:scale(8.8) rotate(48deg)}}@media(max-width:1180px){.app-shell{padding:calc(14px + env(safe-area-inset-top)) calc(14px + env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom)) calc(14px + env(safe-area-inset-left))}.game-container{min-height:calc(100vh - 28px)}.top-bar{flex-direction:column}.status-row{justify-content:flex-start}.setup-header{align-items:flex-start;flex-direction:column}.set-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.play-layout{grid-template-columns:1fr}.question-panel{min-height:auto}.arena{order:-1;min-height:360px}.arena-field{min-height:260px}}@media(max-width:620px){.app-shell{padding:calc(10px + env(safe-area-inset-top)) calc(10px + env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) calc(10px + env(safe-area-inset-left))}.set-grid{grid-template-columns:1fr}.set-card{min-height:auto}.choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.choice-button{min-height:64px;font-size:2.1rem}.rope-scene{grid-template-columns:1fr 96px 1fr}.kid{width:34px;height:106px}.kid-head{width:38px;height:38px;font-size:.95rem}.kid-body{top:40px;width:30px;height:42px}.kid-leg{top:78px;height:34px}.kid-team{gap:4px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}