@charset "UTF-8";
:root{--cream:#fffaf0;--ink:#32594a;--green:#347f5d;--mint:#e4f1e5;--peach:#fce5d5;--muted:#64776b;--line:#dce5d7;--yellow:#fff0c0;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;min-height:100svh;background:radial-gradient(ellipse at 15% 20%,#e9f2df8c,transparent 40%),radial-gradient(ellipse at 90% 65%,#ffead680,transparent 40%);-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}button{font:inherit;cursor:pointer;color:inherit}button:disabled{cursor:default}button,a{outline-offset:5px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #327da8}a{color:var(--green);text-underline-offset:4px}button{border:0}h1,h2,h3,p{margin:0}h1{font-size:clamp(30px,5vw,40px);line-height:1.45;letter-spacing:1px;font-weight:800}h2{font-size:23px;line-height:1.5}h3{font-size:17px;line-height:1.6}p{line-height:1.8}button:active{transform:translateY(2px)}.skip{position:fixed;top:-100px;left:12px;z-index:30;background:white;padding:12px}.skip:focus{top:12px}
#main{max-width:660px;margin:auto;padding:30px 24px 120px;min-height:100svh;outline:none}.home{display:flex;flex-direction:column;align-items:center;text-align:center;justify-content:center;min-height:calc(100svh - 150px);position:relative}.home h1{position:relative;z-index:1}.hero-art{width:min(100%,390px);height:auto;display:block;filter:drop-shadow(0 15px 16px #8c9d7220);margin:2px auto 8px;animation:float 5s ease-in-out infinite}.primary{display:inline-flex;justify-content:center;align-items:center;gap:18px;min-height:60px;background:var(--green);color:white;border-radius:100px;padding:15px 32px;font-size:20px;font-weight:700;box-shadow:0 6px 0 #235c4519;min-width:190px}.primary .arrow{font-size:17px}.primary:hover{background:#2a704f}.home .primary{min-width:220px;font-size:24px;min-height:66px}.spark{position:fixed;pointer-events:none;color:#d9b86b;font-size:38px;z-index:-1}.s1{top:22%;left:max(8%,calc(50% - 300px));transform:rotate(15deg)}.s2{top:57%;right:max(7%,calc(50% - 320px));font-size:44px}.soft{background:var(--mint);border-radius:100px;min-height:48px;padding:12px 22px;font-size:16px;font-weight:700}.plain{background:transparent;border-radius:16px;min-height:44px;padding:10px 14px;font-size:15px;color:var(--muted)}.wide{width:100%}.center{text-align:center}.muted{color:var(--muted);font-size:14px}.gap{margin-top:20px}.small-gap{margin-top:10px}
#navigation{position:fixed;bottom:max(14px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:calc(100% - 32px);max-width:430px;display:flex;padding:7px;background:#fffef9f2;border:1px solid #fff;box-shadow:0 6px 30px #35543b12;border-radius:27px;backdrop-filter:blur(12px);z-index:10}#navigation button{background:transparent;flex:1;min-height:60px;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:13px;border-radius:21px;color:var(--muted)}#navigation button .nav-icon{font-size:25px;line-height:1.2}#navigation button[aria-current="page"]{background:var(--mint);color:var(--ink);font-weight:700}#navigation[hidden]{display:none}.screen-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:28px;min-height:48px}.icon-button{background:#ffffffb3;border:1px solid #f4f0e4;border-radius:50%;width:46px;height:46px;flex:none;font-size:23px;display:grid;place-items:center}.head-title{font-size:14px;color:var(--muted);letter-spacing:1px}.dots{display:flex;gap:7px;align-items:center;justify-content:center}.dots i{display:block;width:8px;height:8px;border-radius:8px;background:#d9e5d4}.dots i.current{width:23px;background:var(--green)}.dots i.done{background:#8bbc9c}.question{font-size:clamp(25px,4.5vw,33px);line-height:1.5;text-align:center;max-width:500px;margin:22px auto 12px}.together{font-size:14px;color:var(--muted);text-align:center}.question-art{width:130px;height:130px;object-fit:contain;display:block;margin:12px auto 0}.answers{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0 12px}.answer{padding:24px 12px 22px;min-height:172px;border-radius:28px;background:var(--mint);border:2px solid transparent;font-size:20px;font-weight:700;display:flex;flex-direction:column;gap:17px;align-items:center;justify-content:center;line-height:1.6}.answer:nth-child(even){background:var(--peach)}.answer.selected{border-color:var(--green)}.answer .picture{font-size:58px;line-height:1.2;font-weight:400}.answer:hover{border-color:#9abda4}.unknown{display:block;margin:4px auto 0;min-height:48px;background:transparent;padding:10px 20px;color:var(--muted);font-size:16px;border-radius:20px}.read-button{display:flex;align-items:center;justify-content:center;gap:7px;margin:0 auto}.result-art{width:200px;max-width:60%;display:block;margin:0 auto}.panel{background:#ffffffc4;border:1px solid #fff;border-radius:26px;padding:24px;margin-top:18px}.panel h2{font-size:20px;margin-bottom:10px}.panel p{font-size:15px}.parent-alert{background:var(--peach)}.action-list{padding-left:22px;margin:8px 0 0;line-height:1.85;font-size:16px}.action-list li+li{margin-top:10px}.result-actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;justify-content:center}.result-actions .primary{font-size:17px;min-width:180px;min-height:52px}.result-actions .soft{flex:1;min-width:130px}.parent-link{display:block;margin:20px auto 0}.page-title{margin:8px 0 6px}.subtitle{font-size:15px;color:var(--muted);line-height:1.7}.section-space{margin-top:28px}.video-cover{aspect-ratio:16/9;position:relative;border-radius:26px;overflow:hidden;background:#dfeddf;display:flex;align-items:center;justify-content:center;margin-top:24px}.video-cover .video-illustration{width:200px;max-height:95%;object-fit:contain}.play-button{position:absolute;bottom:16px;right:16px;width:60px;height:60px;display:grid;place-items:center;color:white;background:var(--green);border:4px solid #fff9;border-radius:50%;font-size:23px;padding-left:6px}.video-cover iframe{width:100%;height:100%;border:0;background:#16221a}.video-meta{display:flex;justify-content:space-between;align-items:start;gap:10px;margin:14px 2px 0}.video-meta h2{font-size:19px}.duration{padding:5px 10px;background:#f4ead5;border-radius:12px;white-space:nowrap;font-size:13px}.source-line{font-size:12px;color:var(--muted);margin-top:7px;line-height:1.8}.source-line a{color:var(--muted)}.timer{display:grid;grid-template-columns:1fr auto;align-items:center;gap:18px}.timer h2{margin:0}.timer p{font-size:13px;color:var(--muted);margin-top:4px}.timer-open{width:76px;height:76px;display:flex;flex-direction:column;justify-content:center;align-items:center;background:var(--yellow);border-radius:22px;font-size:30px}.timer-open small{font-size:12px;margin-top:3px}.level-list{display:grid;gap:16px;margin-top:26px}.level{display:flex;align-items:center;text-align:left;gap:18px;background:var(--mint);padding:22px;border-radius:26px;min-height:112px}.level:nth-child(2){background:var(--peach)}.level:nth-child(3){background:var(--yellow)}.level .level-icon{font-size:42px;width:58px;flex:none;text-align:center}.level h2{font-size:20px}.level p{font-size:13px;margin-top:4px;color:var(--muted)}.level .chevron{margin-left:auto;font-size:22px}.badge-row{display:flex;justify-content:center;gap:20px;margin-top:28px}.badge{width:68px;height:68px;display:grid;place-items:center;border-radius:50%;background:#edeedf;border:4px solid #fff;font-size:30px;filter:grayscale(1);opacity:.5}.badge.earned{filter:none;opacity:1;background:var(--yellow);box-shadow:0 3px 0 #e8d9a4}.quiz-answers{display:grid;gap:12px;margin:24px 0}.quiz-answer{display:flex;align-items:center;gap:18px;text-align:left;background:#fffef9;border:2px solid var(--line);border-radius:22px;min-height:78px;padding:15px 20px;line-height:1.5;font-size:18px}.quiz-answer .picture{font-size:34px;flex:none;width:40px;text-align:center}.quiz-answer.correct{background:var(--mint);border-color:#83b292}.quiz-answer.again{border-style:dashed;background:#fff0d7}.feedback{background:var(--mint);padding:20px;border-radius:22px;line-height:1.8;animation:pop .25s ease-out}.feedback p{font-size:15px}.feedback h2{font-size:20px;margin-bottom:4px}.feedback .primary{min-height:48px;font-size:17px;margin-top:16px}.congrats{font-size:92px;display:block;margin:32px auto 20px;text-align:center}.ring{--progress:0deg;width:min(270px,80vw);height:min(270px,80vw);border-radius:50%;background:conic-gradient(var(--green) var(--progress),#e2ebd8 0);padding:12px;display:grid;place-items:center;margin:35px auto 24px}.ring-inner{width:100%;height:100%;background:var(--cream);border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center}.ring-icon{font-size:48px}.timer-digits{font-size:48px;font-weight:700;letter-spacing:2px;font-variant-numeric:tabular-nums;line-height:1.5}.timer-buttons{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.timer-note{font-size:16px;min-height:56px;text-align:center;margin-bottom:20px}.notes details{border-bottom:1px solid var(--line);padding:17px 0}.notes summary{cursor:pointer;line-height:1.7;font-size:16px;font-weight:700}.notes p{margin-top:12px;font-size:14px}.notes ul{padding-left:20px;line-height:1.8;font-size:13px}.notes li+li{margin-top:9px}.privacy{margin-top:26px;font-size:13px;color:var(--muted)}.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:108px;max-width:calc(100% - 40px);width:max-content;background:#32594a;color:white;border-radius:18px;padding:12px 20px;font-size:14px;z-index:40;box-shadow:0 4px 25px #0001;opacity:0;pointer-events:none;transition:opacity .2s}.toast.visible{opacity:1}.loading{text-align:center;margin-top:35vh}.clear-confirm{padding:16px;background:var(--peach);border-radius:18px;margin-top:12px}.clear-confirm p{font-size:14px}.clear-confirm button{margin-top:10px}.fade-in{animation:pop .24s ease-out}
@keyframes float{50%{transform:translateY(-7px) rotate(1deg)}}@keyframes pop{from{opacity:.2;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:800px){#main{padding-top:45px}.home{min-height:calc(100svh - 180px)}.home h1{font-size:42px}.hero-art{width:380px}.question{margin-top:30px}.question-art{width:150px;height:150px}.answers{gap:22px}.answer{min-height:200px}.answer .picture{font-size:68px}.video-cover{aspect-ratio:16/9}}
@media(max-width:380px){#main{padding:22px 18px 112px}.home{min-height:calc(100svh - 134px)}h1{font-size:30px}.hero-art{width:290px}.answers{gap:12px}.answer{font-size:18px;padding:20px 8px;min-height:158px}.answer .picture{font-size:50px}.screen-head{margin-bottom:15px}.question-art{width:105px;height:105px}.question{font-size:24px}.level{padding:19px 16px;gap:12px}.level h2{font-size:18px}.panel{padding:20px}.timer-digits{font-size:43px}}
@media(max-height:720px){.home h1{font-size:30px}.home .hero-art{width:min(70vw,290px)}.home .primary{min-height:58px}.question-art{width:90px;height:90px}.question{margin-top:16px}.answers{margin-top:18px}.answer{min-height:145px}.screen-head{margin-bottom:12px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.answer .picture.day-night{font-size:42px;white-space:nowrap;line-height:1.65}