:root{--color-navy: #1a2a4f;--color-navy-light: #243a63;--color-navy-deep: #11203f;--color-shu: #b3242b;--color-shu-light: #d24a4f;--color-moegi: #5b8c5a;--color-washi: #f7f1e1;--color-washi-dark: #e8dec5;--color-ink: #1c1a17;--color-gold-1: #ffe7a3;--color-gold-2: #e8b84b;--color-gold-3: #b8860b;--gold-gradient: linear-gradient(135deg, #ffe7a3 0%, #e8b84b 45%, #b8860b 100%);--text-on-dark: #f7f1e1;--text-muted: #b9c2d6;--radius: 14px;--radius-sm: 8px;--shadow-card: 0 8px 24px rgba(0, 0, 0, .35);--shadow-soft: 0 4px 12px rgba(0, 0, 0, .2);--font-mincho: "Shippori Mincho", serif;--font-maru: "Zen Maru Gothic", sans-serif;--maxw: 560px}@keyframes flipIn{0%{transform:rotateY(0)}to{transform:rotateY(180deg)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-8px)}40%{transform:translate(8px)}60%{transform:translate(-5px)}80%{transform:translate(5px)}}@keyframes manekiBounce{0%,to{transform:translateY(0) rotate(0)}30%{transform:translateY(-10px) rotate(-4deg)}60%{transform:translateY(0) rotate(4deg)}}@keyframes curtainOpenLeft{0%{transform:translate(0)}to{transform:translate(-100%)}}@keyframes curtainOpenRight{0%{transform:translate(0)}to{transform:translate(100%)}}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.08);opacity:1}to{transform:scale(1)}}@keyframes confettiFall{0%{transform:translateY(-20px) rotate(0);opacity:1}to{transform:translateY(120px) rotate(360deg);opacity:0}}@keyframes toastIn{0%{opacity:0;transform:translate(-50%,12px)}to{opacity:1;transform:translate(-50%)}}.anim-shake{animation:shake .4s ease}.anim-pop{animation:pop .35s ease}.anim-fade-up{animation:fadeUp .4s ease both}*{box-sizing:border-box;margin:0;padding:0}html,body{min-height:100%}body{font-family:var(--font-maru);color:var(--text-on-dark);background:var(--color-navy-deep);background-image:radial-gradient(circle at 20% 10%,rgba(255,231,163,.06),transparent 40%),radial-gradient(circle at 80% 90%,rgba(179,36,43,.1),transparent 45%),linear-gradient(180deg,var(--color-navy) 0%,var(--color-navy-deep) 100%);background-attachment:fixed;-webkit-font-smoothing:antialiased;line-height:1.6}#root{max-width:var(--maxw);margin:0 auto;min-height:100vh;display:flex;flex-direction:column;position:relative}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input{font-family:inherit}a{color:var(--color-gold-2);text-decoration:none}h1,h2,h3{font-family:var(--font-mincho);font-weight:700;letter-spacing:.02em}.app-main{flex:1;padding:16px 16px 32px}.page{animation:fadeUp .35s ease both}.header{display:flex;align-items:center;gap:10px;padding:12px 16px;background:linear-gradient(180deg,var(--color-navy-light),var(--color-navy));border-bottom:3px solid transparent;border-image:var(--gold-gradient) 1;position:sticky;top:0;z-index:20}.header__logo{width:38px;height:38px;flex-shrink:0}.header__title{font-size:1.15rem;background:var(--gold-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.header__back{margin-left:auto;font-size:.85rem;color:var(--text-muted);padding:6px 10px;border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-sm)}.footer{text-align:center;font-size:.72rem;color:var(--text-muted);padding:18px 16px 26px;border-top:1px solid rgba(255,255,255,.08)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 20px;border-radius:var(--radius);font-weight:700;font-size:1rem;transition:transform .12s ease,box-shadow .12s ease,filter .12s ease;box-shadow:var(--shadow-soft)}.btn:active{transform:translateY(2px)}.btn--gold{background:var(--gold-gradient);color:var(--color-ink)}.btn--shu{background:linear-gradient(180deg,var(--color-shu-light),var(--color-shu));color:#fff}.btn--ghost{background:#ffffff0f;color:var(--text-on-dark);border:1px solid rgba(255,255,255,.16)}.btn--block{width:100%}.hero{text-align:center;padding:24px 8px 8px}.hero__logo{width:96px;height:96px;margin:0 auto 12px;filter:drop-shadow(0 6px 14px rgba(0,0,0,.4))}.hero__title{font-size:2rem;background:var(--gold-gradient);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}.hero__sub{color:var(--text-muted);font-size:.92rem;margin-bottom:22px}.home-actions{display:flex;flex-direction:column;gap:12px;margin-top:8px}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:10px}.mode-card{text-align:left;background:linear-gradient(160deg,var(--color-navy-light),var(--color-navy-deep));border:1px solid rgba(255,231,163,.2);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:6px;transition:transform .14s ease,border-color .14s ease}.mode-card:active{transform:scale(.97)}.mode-card__icon{font-size:1.6rem}.mode-card__title{font-family:var(--font-mincho);font-size:1rem;font-weight:700}.mode-card__sub{font-size:.72rem;color:var(--text-muted)}.mode-card--wide{grid-column:1 / -1}.mode-card--results{background:linear-gradient(160deg,#2a1f3a,#1a1430);border-color:#d88ac84d}.game{display:flex;flex-direction:column;gap:14px}.game__topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.85rem}.game__question{background:var(--color-washi);color:var(--color-ink);border-radius:var(--radius);padding:18px 16px;text-align:center;box-shadow:var(--shadow-card);position:relative}.game__question-label{font-size:.78rem;color:var(--color-shu);font-weight:700;margin-bottom:4px}.game__question-main{font-family:var(--font-mincho);font-size:1.5rem;font-weight:700;color:var(--color-ink)}.game__hint{font-size:.82rem;color:#6a6051;margin-top:6px}.answer-form{display:flex;gap:8px}.answer-input{flex:1;padding:14px;border-radius:var(--radius);border:2px solid rgba(255,231,163,.3);background:#fffffff2;color:var(--color-ink);font-size:1.1rem}.answer-input:focus{outline:none;border-color:var(--color-gold-2)}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.choice-tile{padding:16px 12px;border-radius:var(--radius);background:linear-gradient(160deg,var(--color-navy-light),var(--color-navy-deep));border:1.5px solid rgba(255,231,163,.2);font-size:1rem;font-weight:700;text-align:center;transition:transform .1s ease;min-height:60px}.choice-tile:active{transform:scale(.96)}.choice-tile--correct{background:linear-gradient(160deg,#2e6b5e,#1f4a40);border-color:#6fe0c0}.choice-tile--wrong{background:linear-gradient(160deg,#6b2e2e,#4a1f1f);border-color:#e08080}.choice-tile:disabled{cursor:default}.flip-card{perspective:1000px;width:100%;max-width:260px;margin:0 auto;aspect-ratio:3 / 4}.flip-card__inner{position:relative;width:100%;height:100%;transition:transform .6s cubic-bezier(.4,.2,.2,1);transform-style:preserve-3d}.flip-card--flipped .flip-card__inner{transform:rotateY(180deg)}.flip-card__face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-card)}.flip-card__front{background:var(--gold-gradient);display:flex;align-items:center;justify-content:center;border:6px solid #b8860b}.flip-card__front-mark{font-family:var(--font-mincho);font-size:3rem;color:var(--color-ink)}.flip-card__back{transform:rotateY(180deg);background:var(--color-washi);color:var(--color-ink);border:6px solid var(--color-gold-3);display:flex;flex-direction:column}.flip-card__img{flex:1;width:100%;object-fit:cover;background:var(--color-washi-dark)}.flip-card__caption{padding:8px;text-align:center;font-family:var(--font-mincho);font-weight:700;background:#0000000a}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.portrait-card{border-radius:var(--radius-sm);overflow:hidden;background:var(--color-navy-light);border:1px solid rgba(255,231,163,.2);aspect-ratio:3 / 4;display:flex;flex-direction:column}.portrait-card__img{flex:1;width:100%;object-fit:cover}.portrait-card__name{font-size:.72rem;text-align:center;padding:4px 2px}.portrait-card--locked{filter:grayscale(1) brightness(.5)}.progress-bar{height:8px;width:100%;background:#ffffff1f;border-radius:99px;overflow:hidden}.progress-bar__fill{height:100%;background:var(--gold-gradient);transition:width .3s ease}.streak-badge{display:inline-flex;align-items:center;gap:4px;font-weight:700;color:var(--color-gold-1)}.comment-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--color-shu);color:#fff;padding:10px 18px;border-radius:99px;font-weight:700;box-shadow:var(--shadow-card);z-index:50;animation:toastIn .3s ease;max-width:90%;text-align:center}.era-timeline{width:100%;background:var(--color-washi);border-radius:var(--radius);padding:14px 12px 18px;box-shadow:var(--shadow-card);color:var(--color-ink)}.era-timeline__track{position:relative;height:28px;border-radius:99px;overflow:hidden;display:flex}.era-timeline__seg{flex:1;display:flex;align-items:center;justify-content:center;font-size:.6rem;color:#fff;font-weight:700}.era-timeline__marker{position:absolute;top:-6px;width:2px;height:40px;background:var(--color-ink);transition:left .5s ease}.era-timeline__marker:after{content:"▼";position:absolute;top:-14px;left:-6px;color:var(--color-shu);font-size:.8rem}.era-timeline__current{text-align:center;margin-top:10px;font-family:var(--font-mincho);font-weight:700}.result{text-align:center;background:var(--color-washi);color:var(--color-ink);border-radius:var(--radius);padding:24px 18px;box-shadow:var(--shadow-card);position:relative;overflow:hidden}.result__title-badge{display:inline-block;background:var(--gold-gradient);color:var(--color-ink);font-family:var(--font-mincho);font-weight:700;padding:8px 18px;border-radius:99px;font-size:1.2rem;margin:8px 0 14px;box-shadow:var(--shadow-soft)}.result__score{font-size:2.4rem;font-family:var(--font-mincho);font-weight:700;color:var(--color-shu)}.result__stats{display:flex;justify-content:center;gap:18px;margin-top:10px;font-size:.85rem;color:#5a5346}.result__actions{display:flex;flex-direction:column;gap:10px;margin-top:18px}.qr-box{text-align:center;background:#ffffff0f;border:1px solid rgba(255,231,163,.2);border-radius:var(--radius);padding:16px;margin-top:18px}.qr-box__img{width:140px;height:140px;background:#fff;border-radius:var(--radius-sm);padding:8px}.qr-box__text{font-size:.8rem;color:var(--text-muted);margin-top:8px}.achievement{display:inline-flex;align-items:center;gap:6px;background:#ffe7a31f;border:1px solid rgba(255,231,163,.3);border-radius:99px;padding:4px 12px;font-size:.78rem}.record-list{display:flex;flex-direction:column;gap:10px}.record-item{background:linear-gradient(160deg,var(--color-navy-light),var(--color-navy-deep));border:1px solid rgba(255,231,163,.16);border-radius:var(--radius);padding:14px}.record-item__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.record-item__name{font-family:var(--font-mincho);font-weight:700}.record-item__rate{font-size:1.3rem;font-weight:700;color:var(--color-gold-1)}.record-item__meta{font-size:.75rem;color:var(--text-muted);display:flex;gap:14px}.empty-note{text-align:center;color:var(--text-muted);padding:30px 10px;font-size:.9rem}.section-title{font-size:1.1rem;margin:18px 0 8px;padding-left:10px;border-left:4px solid;border-image:var(--gold-gradient) 1}.note-box{background:#ffe7a314;border:1px solid rgba(255,231,163,.2);border-radius:var(--radius-sm);padding:12px;font-size:.78rem;color:var(--text-muted);line-height:1.7}.confetti{position:absolute;top:0;width:8px;height:14px;border-radius:2px;animation:confettiFall 1.2s ease-in forwards}