:root{--background:#fff;--foreground:#1a1a1a;--primary-color:#007bbb;--primary-hover:#005a8d;--primary-soft:#007bbb0d;--accent-red:#d9001b;--accent-gray:#f2f4f7;--card-bg:#fff;--card-hover:#f9fbff;--surface-glass:#ffffffe6;--border-color:#007bbb;--border-soft:#e1e8ed;--text-primary:#1a1a1a;--text-secondary:#536471;--text-on-primary:#fff;--soft-shadow:0 4px 20px #0000000f;--accent-glow:0 4px 12px #007bbb33;--bg-primary:#fff;--bg-secondary:#f7f9f9;--twitter-blue:var(--primary-color);--twitter-border:var(--border-soft);--twitter-hover:#007bbb08;--transition-base:.2s cubic-bezier(.4,0,.2,1);--main-content-max-width:700px;--container-max-width:1300px}@media (min-width:1024px){:root{--main-content-max-width:100%;--container-max-width:100%}}:root{--header-bg:#ffffffd9;--twitter-header-bg:#ffffffd9;--twitter-search-bg:#f7f9f9;--twitter-light-gray:#536471}*{box-sizing:border-box;margin:0;padding:0}html,body{background-color:var(--background);max-width:100vw;min-height:100vh;color:var(--foreground);font-family:var(--font-inter),"BIZ UDPGothic","Meiryo",sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-thumb{background:var(--border-soft);border-radius:10px}.policy-card{background:var(--card-bg);border:2px solid var(--primary-color);transition:var(--transition-base);box-shadow:var(--soft-shadow);border-radius:8px;padding:24px}.policy-card:hover{background:var(--card-hover);transform:translateY(-2px)}input[type=text],input[type=number],input[type=email],input[type=password],textarea,select{border:2px solid var(--border-soft);background-color:var(--bg-primary);width:100%;color:var(--text-primary);border-radius:6px;outline:none;padding:12px 16px;font-family:inherit;font-size:1rem;transition:border-color .2s,box-shadow .2s}input:focus,textarea:focus,select:focus{border-color:var(--primary-color);box-shadow:0 0 0 4px var(--primary-soft)}.btn-solid{background:var(--primary-color);color:#fff;border:2px solid var(--primary-color);text-align:center;transition:var(--transition-base);box-shadow:var(--accent-glow);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:800;display:inline-flex}.btn-solid:hover{background:var(--primary-hover);border-color:var(--primary-hover);transform:translateY(-2px);box-shadow:0 8px 20px #007bbb4d}.btn-solid:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.btn-outline{color:var(--primary-color);border:2px solid var(--primary-color);text-align:center;transition:var(--transition-base);cursor:pointer;background:0 0;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:800;display:inline-flex}.btn-outline:hover{background:var(--primary-soft);transform:translateY(-2px)}.handwriting{font-family:var(--font-kiwi-maru),cursive;color:var(--primary-color)}.safe-bottom{padding-bottom:env(safe-area-inset-bottom)}.safe-bottom-large{padding-bottom:calc(var(--footer-space,96px) + env(safe-area-inset-bottom))}.fixed-footer-safe{padding-bottom:calc(12px + env(safe-area-inset-bottom))}.compact-thumbnail{display:inline-block;position:relative}.compact-thumbnail__button{cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:0;display:inline-flex}.compact-thumbnail__icon{background:#00000005;border-radius:8px;justify-content:center;align-items:center;width:100%;height:100%;display:inline-flex}.compact-thumbnail__expanded{display:block;position:relative}.compact-thumbnail__collapse{color:#fff;cursor:pointer;background:#00000080;border:none;border-radius:6px;justify-content:center;align-items:center;width:28px;height:28px;display:inline-flex;position:absolute;top:6px;right:6px}