:root{--cursor-size: 20px;--cursor-hover-size: 60px;--text-main: #111;--text-sub: #555;--bg-body: #f8f8f8;--bg-footer: #0a0a0a;--font-main: "Montserrat", "Noto Sans JP", sans-serif;--spacing-container: 24px;--spacing-container-md: 96px}*{box-sizing:border-box;margin:0;padding:0}html{background-color:var(--bg-body);overscroll-behavior-y:none}body{font-family:var(--font-main);background-color:var(--bg-body);color:var(--text-main);-webkit-font-smoothing:antialiased;overflow-x:hidden;width:100%;cursor:none;overscroll-behavior-y:none}a{text-decoration:none;color:inherit}ul{list-style:none}@media (hover: none) and (pointer: coarse){body{cursor:auto}#custom-cursor{display:none}}#custom-cursor{position:fixed;top:0;left:0;width:var(--cursor-size);height:var(--cursor-size);border:1px solid #fff;border-radius:50%;pointer-events:none;z-index:9999;mix-blend-mode:difference;transition:width .3s cubic-bezier(.19,1,.22,1),height .3s 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#4882aa80}.bonus-toggle-inline:active{transform:translateY(0)}.bonus-messages-inline{background:#f8f8f8;padding:2rem;border-radius:12px;animation:slideIn .3s ease}.bonus-items-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.bonus-item-card{display:flex;align-items:center;gap:.8rem;padding:1rem;background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000000d;transition:transform .2s ease,box-shadow .2s ease}.bonus-item-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.public-achievements{margin-top:3rem;padding:2rem;background:#f8f8f8;border-radius:12px}.achievement-stamps{display:flex;flex-wrap:wrap;gap:1rem}.stamp-item{display:flex;align-items:center;gap:.8rem;padding:1rem;background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000000d;transition:transform .2s ease,box-shadow .2s ease}.stamp-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.stamp-icon{font-size:1.5rem;line-height:1;flex-shrink:0}.stamp-text{font-size:.85rem;color:#333c;font-weight:600;letter-spacing:.02em;white-space:nowrap}.support-feedback{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:20003;background:#000000e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:#fff;padding:1.5rem 2rem;border-radius:12px;font-size:1rem;font-weight:600;box-shadow:0 8px 24px #0000004d;text-align:center}@media (max-width: 768px){.language-toggle-btn{position:absolute;top:1rem;right:1rem;width:11.2rem}.language-toggle-btn .lang-option{font-size:.7rem;padding:.5rem 0;width:2.8rem}.mode-toggle-btn{bottom:1rem;right:1rem;font-size:.7rem;padding:.6rem 1.1rem}.mode-indicator{bottom:4rem;right:1rem;font-size:.65rem;padding:.45rem 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