:root{font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,Source Han Sans SC,sans-serif;line-height:1.6;font-weight:400;color:#2b2b2b;background-color:#f7f1e8;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--title-font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--ink: #2b2b2b;--muted: #6b6b6b;--cream: #f7f1e8;--mint: #c9e7d5;--peach: #f5c6a5;--sun: #ffd57a;--sky: #b8d9ff;--shadow: rgba(37, 36, 34, .12)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#fff2d8,#f7f1e8 45%,#e7f2ff);color:var(--ink)}body:before,body:after{content:"";position:fixed;width:320px;height:320px;border-radius:50%;z-index:-1;opacity:.35}body:before{top:-80px;left:-60px;background:radial-gradient(circle,#ffd5a5,transparent 70%)}body:after{bottom:-120px;right:-80px;background:radial-gradient(circle,#bfe6ff,transparent 70%)}#app{min-height:100vh}button{border:none;font-family:var(--title-font)}.page{max-width:1000px;margin:0 auto;padding:32px 20px 40px;display:flex;flex-direction:column;gap:24px}.topbar{display:flex;justify-content:space-between;align-items:center}.brand{font-family:var(--title-font);font-size:1.8rem;letter-spacing:1px}.tag-wrap{display:flex;flex-direction:column;align-items:flex-end;gap:6px}.tag{background:#fff;padding:8px 14px;border-radius:999px;box-shadow:0 6px 18px var(--shadow);font-size:.9rem;border:none;cursor:pointer}.panel{background:#ffffffeb;border-radius:28px;padding:32px;box-shadow:0 18px 40px var(--shadow);min-height:520px;display:flex;align-items:center;justify-content:center}.section{width:100%;display:flex;flex-direction:column;gap:18px;text-align:center;animation:floatIn .6s ease}.section h1,.section h2{font-family:var(--title-font);margin:0}.section p{margin:0;color:var(--muted)}.start-hero{display:flex;flex-direction:column;gap:8px}.rules{display:grid;gap:10px;text-align:left}.rules div{background:#fff5e6;padding:12px 14px;border-radius:16px;box-shadow:0 6px 18px var(--shadow);display:grid;gap:6px}.rules strong{font-family:var(--title-font)}.stat-box{background:#f3f9ff;border-radius:20px;padding:16px;box-shadow:0 10px 20px var(--shadow)}.stat-box h3{margin:0 0 12px;font-family:var(--title-font)}.stat-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.stat-grid p{margin:0;font-size:.9rem;color:var(--muted)}.stat-grid strong{font-size:1.2rem}.primary{background:linear-gradient(135deg,var(--peach),var(--sun));color:#3b2c1b;padding:12px 32px;border-radius:999px;font-size:1.1rem;box-shadow:0 10px 20px #f5c6a573;transition:transform .2s ease,box-shadow .2s ease;cursor:pointer;width:fit-content;max-width:240px;align-self:center}.primary:hover{transform:translateY(-2px);box-shadow:0 14px 24px #f5c6a58c}.ghost{background:transparent;border:2px dashed #f0b5a0;color:#7a4f3f;padding:10px 24px;border-radius:999px;font-size:1rem;cursor:pointer;width:fit-content;max-width:240px;align-self:center}.round-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.round-label{font-family:var(--title-font);margin:0}.progress{display:flex;gap:6px}.dot{width:10px;height:10px;border-radius:50%;background:#f1d1be}.dot.active{background:#f7a072}.countdown{background:#e4f2ff;color:#2b4b70;padding:6px 14px;border-radius:12px;font-size:.9rem}.image-frame{width:min(560px,100%);max-width:100%;aspect-ratio:1 / 1;height:auto;border-radius:24px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:inset 0 0 0 3px #f4d9c6,0 10px 24px var(--shadow);margin:0 auto}.image-frame img{width:100%;height:100%;object-fit:contain;display:block}.image-frame.small{width:min(360px,84vw);max-width:100%;aspect-ratio:1 / 1}.hint{font-size:.95rem;color:#7a6e64}.cache-inline{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--muted)}.cache-bar{width:120px;height:6px;background:#efe2d5;border-radius:999px;overflow:hidden}.cache-bar span{display:block;height:100%;background:linear-gradient(90deg,#f4bfa3,#f0a984);width:0%;transition:width .2s ease}.cache-bar.large{width:min(320px,80vw);height:10px}.progress-text{font-size:.9rem;color:var(--muted)}.feedback-text.good{color:#2f8b57}.feedback-text.bad{color:#c26b6b}.options{display:grid;gap:12px;grid-template-columns:repeat(2,minmax(180px,1fr));justify-items:center}.option{background:#fff8ef;border-radius:18px;padding:12px 16px;font-size:clamp(.95rem,1.4vw,1rem);box-shadow:0 8px 18px var(--shadow);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;width:100%;max-width:280px}.section.quiz{gap:12px}.section.quiz h2{font-size:clamp(1.15rem,2.2vw,1.6rem)}.option:hover{transform:translateY(-2px);box-shadow:0 12px 22px var(--shadow)}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.summary-grid p{margin:0;color:var(--muted)}.summary-grid strong{font-size:1.6rem}.actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.history-panel{display:grid;gap:18px}.history-list{background:#fff9f0;border-radius:20px;padding:16px;box-shadow:0 10px 18px var(--shadow);text-align:left}.history-list h2{margin:0 0 12px;font-family:var(--title-font)}.history-bank{background:#f3f9ff;border-radius:20px;padding:16px;box-shadow:0 10px 18px var(--shadow);text-align:left}.history-bank h2{margin:0 0 8px;font-family:var(--title-font)}.history-bank p{margin:0;color:var(--muted)}.history-rows{display:grid;gap:10px}.history-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 16px;background:#fff;border-radius:12px;padding:10px 12px;box-shadow:0 6px 12px var(--shadow);font-size:.95rem}.history-empty{color:var(--muted)}.inline-confirm{display:flex;flex-direction:column;gap:8px;align-items:center}.confirm-box{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:center;background:#fff2ec;border-radius:14px;padding:8px 12px;box-shadow:0 6px 12px var(--shadow);font-size:.9rem;color:#7a4f3f}.danger{background:#f3b3a3;color:#5b2a23;border-radius:999px;padding:8px 16px;cursor:pointer}.foot{text-align:center;color:#887a6f;font-size:.9rem;display:grid;gap:6px}.foot-links{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;color:#a08f82;font-size:.85rem}.foot-links a{color:inherit}@keyframes floatIn{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@media(max-width:720px){.panel{padding:24px;min-height:auto}.round-head{flex-direction:column}.page{padding:24px 16px 32px}.brand{font-size:1.5rem}.primary,.ghost{max-width:200px;font-size:1rem}.options{grid-template-columns:1fr}}@media(min-width:768px)and (max-width:1180px)and (orientation:landscape){.page{padding:20px 18px 28px}.panel{padding:18px;min-height:calc(100vh - 140px)}.section{gap:12px}.section h1{font-size:clamp(1.4rem,2.2vw,1.9rem)}.section h2{font-size:clamp(1.1rem,2vw,1.5rem)}.image-frame{width:min(420px,48vw)}.image-frame.small{width:min(320px,40vw)}.options{gap:10px}.option{max-width:240px;padding:10px 12px}}