.banner.svelte-wh6tnt{bottom:calc(1.5rem + env(safe-area-inset-bottom,0px));z-index:200;border-radius:var(--r-lg);box-shadow:var(--sh-xl);background:#fff;border:1.5px solid #6366f126;align-items:center;gap:.75rem;padding:.85rem 1rem;animation:.4s cubic-bezier(.34,1.56,.64,1) svelte-wh6tnt-slide-up;display:flex;position:fixed;left:1rem;right:1rem}@keyframes svelte-wh6tnt-slide-up{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.icon.svelte-wh6tnt{flex-shrink:0;font-size:1.8rem}.body.svelte-wh6tnt{flex-direction:column;flex:1;gap:.15rem;min-width:0;display:flex}.title.svelte-wh6tnt{color:var(--c-text);font-size:.9rem;font-weight:800;line-height:1.3}.sub.svelte-wh6tnt{color:var(--c-muted);font-size:.75rem;line-height:1.4}.share-icon.svelte-wh6tnt{background:var(--c-primary);color:#fff;border-radius:5px;padding:0 3px;font-size:.7rem;font-style:normal;display:inline-block}.btn-install.svelte-wh6tnt{border-radius:var(--r-full);background:linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);color:#fff;font-family:var(--f-body);flex-shrink:0;padding:.45rem 1.1rem;font-size:.85rem;font-weight:800;transition:opacity .15s,transform .15s}.btn-install.svelte-wh6tnt:hover{opacity:.88;transform:translateY(-1px)}.btn-close.svelte-wh6tnt{width:28px;height:28px;color:var(--c-muted);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.75rem;transition:background .15s;display:flex}.btn-close.svelte-wh6tnt:hover{background:#0000000f}@media (width>=768px){.banner.svelte-wh6tnt{max-width:420px;left:auto;right:1.5rem}}*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--c-primary:#6366f1;--c-primary-light:#a5b4fc;--c-primary-dark:#4f46e5;--c-accent:#ec4899;--c-success:#10b981;--c-warning:#f59e0b;--c-danger:#ef4444;--c-bg:#f8f7ff;--c-card:#fff;--c-text:#1e1b4b;--c-muted:#6b7280;--c-border:#6366f11f;--lv-a1:#a5f3fc;--lv-a2:#86efac;--lv-b1:#fde68a;--lv-b2:#fca5a5;--lv-c1:#c4b5fd;--lv-c2:#f9a8d4;--lv-physik:#93c5fd;--lv-mathematik:#6ee7b7;--r-sm:12px;--r-md:20px;--r-lg:28px;--r-xl:40px;--r-full:9999px;--sh-sm:0 2px 10px #6366f114;--sh-md:0 4px 24px #6366f121;--sh-lg:0 8px 40px #6366f12e;--sh-xl:0 16px 60px #6366f138;--f-display:"Fredoka", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;--f-body:"Nunito", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif}html{font-family:var(--f-body);color:var(--c-text);-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background-color:var(--c-bg);background-image:radial-gradient(at 12% 8%,#a5f3fc61 0%,#0000 52%),radial-gradient(at 88% 88%,#c4b5fd61 0%,#0000 52%),radial-gradient(at 72% 18%,#f9a8d447 0%,#0000 42%),radial-gradient(at 28% 82%,#86efac38 0%,#0000 42%);background-attachment:fixed;min-height:100dvh}a{color:inherit;text-decoration:none}button{font-family:var(--f-body);cursor:pointer;background:0 0;border:none}.app.svelte-12qhfyh{flex-direction:column;min-height:100dvh;display:flex}.topbar.svelte-12qhfyh{z-index:100;-webkit-backdrop-filter:blur(24px)saturate(1.8);border-bottom:1px solid var(--c-border);background:#ffffffd1;justify-content:space-between;align-items:center;height:64px;padding:0 1.5rem;display:flex;position:sticky;top:0}.logo.svelte-12qhfyh{align-items:center;gap:.45rem;display:flex}.logo-icon.svelte-12qhfyh{animation:4s ease-in-out infinite svelte-12qhfyh-logo-float;display:flex}@keyframes svelte-12qhfyh-logo-float{0%,to{transform:translateY(0)rotate(0)}28%{transform:translateY(-5px)rotate(-6deg)}72%{transform:translateY(-3px)rotate(5deg)}}.logo-text.svelte-12qhfyh{font-family:var(--f-display);background:linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.5rem;font-weight:600}.desktop-nav.svelte-12qhfyh{gap:.2rem;display:none}.nav-link.svelte-12qhfyh{border-radius:var(--r-full);color:var(--c-muted);padding:.45rem 1.1rem;font-size:.9rem;font-weight:700;transition:all .2s}.nav-link.svelte-12qhfyh:hover{color:var(--c-primary);background:#6366f114}.nav-link.active.svelte-12qhfyh{color:#fff;background:var(--c-primary-dark)}.main-content.svelte-12qhfyh{flex:1;padding-bottom:2.5rem}.bottom-nav.svelte-12qhfyh{display:none}.ad-banner-wrap.svelte-12qhfyh{border-top:1px solid var(--c-border);background:#ffffff80;justify-content:center;align-items:center;min-height:50px;padding:1rem 0;display:flex}.site-footer.svelte-12qhfyh{border-top:1px solid var(--c-border);background:#fff9;padding:1.2rem 1.5rem 1.5rem}.footer-inner.svelte-12qhfyh{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;max-width:960px;margin:0 auto;display:flex}.footer-copy.svelte-12qhfyh{color:var(--c-muted);font-size:.78rem;font-weight:500}.footer-links.svelte-12qhfyh{gap:1.2rem;display:flex}.footer-links.svelte-12qhfyh a:where(.svelte-12qhfyh){color:var(--c-muted);text-underline-offset:2px;font-size:.78rem;font-weight:600;text-decoration:underline;transition:color .15s}.footer-links.svelte-12qhfyh a:where(.svelte-12qhfyh):hover{color:var(--c-primary)}@media (width>=768px){.desktop-nav.svelte-12qhfyh{display:flex}}