:root{--icv-bg:#080b1a;--icv-bg2:#0c1430;--icv-ink:#15161d;--icv-paper:#fffdf4;--icv-paper2:#eef1f7;--icv-text:#e9edfb;--icv-muted:#9aa6c8;--icv-cyan:#22d3ee;--icv-sky:#0ea5e9;--icv-indigo:#6366f1;--icv-pink:#ff4d9d;--icv-lime:#84cc16;--icv-radius:14px;--icv-readw:780px}body#top{margin:0;background:radial-gradient(1100px 560px at 82% -8%,rgba(34,211,238,.13),transparent 60%),radial-gradient(900px 520px at 4% 8%,rgba(99,102,241,.16),transparent 55%),linear-gradient(180deg,var(--icv-bg2) 0,var(--icv-bg) 60%);color:var(--icv-text);font-family:Noto Sans JP,system-ui,sans-serif;line-height:1.9;-webkit-font-smoothing:antialiased}.skip-link{position:absolute;left:-9999px;top:0;z-index:9999;padding:8px 16px;background:var(--icv-pink);color:#fff;font-weight:700;border-radius:0 0 8px 0;text-decoration:none}.skip-link:focus{left:8px;top:8px}.page-sec-nav{position:sticky;top:54px;z-index:998;background:#0a1126;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;box-shadow:0 3px 0 var(--icv-cyan),0 8px 16px rgba(0,0,0,.5);border-bottom:1px solid #1c2547}.page-sec-nav::-webkit-scrollbar{display:none}.page-sec-nav-inner{display:flex;align-items:stretch;justify-content:center;width:max-content;min-width:100%;margin:0 auto;padding:0 8px;white-space:nowrap}.page-sec-nav a{color:var(--icv-muted);font-family:Montserrat,Noto Sans JP,sans-serif;font-size:.72rem;font-weight:700;letter-spacing:.04em;padding:10px 12px;text-decoration:none;border-bottom:3px solid transparent;transition:color .2s,border-color .2s,background .2s}.page-sec-nav a:focus-visible,.page-sec-nav a:hover{color:#fff;border-bottom-color:var(--icv-cyan);background:rgba(34,211,238,.16);outline:none}.page-sec-nav a.is-active{color:#c9f7ff;border-bottom-color:var(--icv-cyan);background:rgba(34,211,238,.2)}@media (max-width:480px){.page-sec-nav a{padding:9px 10px;font-size:.68rem}}.icv-hero{position:relative;overflow:hidden;padding:clamp(2.4rem,6vw,4.2rem) 1.25rem clamp(2rem,4vw,3rem);text-align:center;background:repeating-conic-gradient(from 0deg at 50% 42%,hsla(0,0%,100%,.05) 0deg 2deg,transparent 2deg 6deg),radial-gradient(120% 80% at 50% 0,rgba(34,211,238,.18),transparent 60%)}.icv-hero__inner{position:relative;z-index:1;max-width:880px;margin:0 auto}.icv-hero__kicker{display:inline-block;transform:rotate(-2deg);font-family:Montserrat,Noto Sans JP,sans-serif;font-weight:900;font-size:.82rem;letter-spacing:.08em;color:var(--icv-ink);background:var(--icv-cyan);padding:.35rem 1rem;border:3px solid var(--icv-ink);border-radius:6px;box-shadow:4px 4px 0 var(--icv-ink)}.icv-hero__title{margin:1.1rem auto .5rem;font-family:Shippori Mincho,Noto Sans JP,serif;font-weight:900;line-height:1.22;font-size:clamp(1.9rem,6.4vw,3.4rem);text-wrap:balance;color:#fff;text-shadow:3px 3px 0 var(--icv-ink),0 0 22px rgba(34,211,238,.28)}.icv-hero__title em{font-style:normal;color:var(--icv-cyan);-webkit-text-stroke:1px var(--icv-ink)}.icv-hero__title .icv-nb{display:inline-block;white-space:nowrap}.icv-hero__catch{margin:.4rem auto 0;max-width:42ch;font-weight:700;font-size:clamp(1rem,2.6vw,1.18rem);color:var(--icv-cyan)}.icv-hero__lead{margin:1rem auto 0;max-width:47ch;color:#d7def4;font-size:clamp(.96rem,2.2vw,1.04rem)}.icv-hero__lead strong{color:#fff}.icv-hero__chips{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-top:1.3rem}.icv-hero__chip{font-weight:700;font-size:.8rem;color:#fff;background:hsla(0,0%,100%,.06);border:1.5px solid hsla(0,0%,100%,.18);padding:.3rem .8rem;border-radius:999px}.icv-hero__chip--accent{color:var(--icv-ink);background:var(--icv-cyan);border-color:var(--icv-cyan)}.icv-cast{display:flex;flex-wrap:wrap;gap:.7rem;justify-content:center;margin-top:1.6rem}.icv-cast__card{display:flex;align-items:center;gap:.6rem;background:var(--icv-paper);color:var(--icv-ink);border:3px solid var(--icv-ink);border-radius:12px;padding:.5rem .85rem;box-shadow:3px 3px 0 var(--icv-ink)}.icv-cast__face{font-size:1.8rem;line-height:1}.icv-cast__who b{display:block;font-weight:900;font-size:.92rem}.icv-cast__who span{font-size:.74rem;color:#555}.icv-main{max-width:var(--icv-readw);margin:0 auto;padding:1.2rem 1.1rem 2rem}.icv-ep{margin:2.6rem 0 0}.icv-ep__head{display:flex;align-items:baseline;gap:.7rem;flex-wrap:wrap;margin-bottom:.2rem}.icv-ep__no{font-family:Montserrat,sans-serif;font-weight:900;font-size:.8rem;letter-spacing:.1em;color:var(--icv-ink);background:var(--icv-cyan);border:2.5px solid var(--icv-ink);padding:.15rem .6rem;border-radius:6px;box-shadow:3px 3px 0 var(--icv-ink);transform:rotate(-1.5deg)}.icv-ep__title{margin:0;font-family:Shippori Mincho,Noto Sans JP,serif;font-weight:900;font-size:clamp(1.3rem,4vw,1.8rem);color:#fff}.icv-ep__sub{margin:.1rem 0 1rem;color:var(--icv-muted);font-size:.92rem}.icv-panel{position:relative;background:var(--icv-paper);color:var(--icv-ink);border:4px solid var(--icv-ink);border-radius:var(--icv-radius);box-shadow:6px 6px 0 var(--icv-ink);padding:1.2rem 1.1rem;margin:1.1rem 0}.icv-panel+.icv-panel{margin-top:1.5rem}.icv-panel__no{position:absolute;top:-14px;left:16px;font-family:Montserrat,sans-serif;font-weight:900;font-size:.9rem;color:var(--icv-paper);background:var(--icv-ink);width:30px;height:30px;border-radius:50%;display:grid;place-items:center;box-shadow:2px 2px 0 rgba(0,0,0,.25)}.icv-panel__cap{margin:0;font-weight:700;font-size:1.02rem;line-height:1.8}.icv-panel__cap strong{background:linear-gradient(transparent 62%,#9ef0ff 0)}.icv-panel p{margin:.6rem 0 0}.icv-panel p:first-child{margin-top:0}.icv-panel--tiltL{transform:rotate(-.6deg)}.icv-panel--tiltR{transform:rotate(.6deg)}.icv-figure{margin:1.4rem 0;background:var(--icv-paper);border:4px solid var(--icv-ink);border-radius:var(--icv-radius);box-shadow:6px 6px 0 var(--icv-ink);overflow:hidden}.icv-figure img{display:block;width:100%;height:auto}.icv-figure figcaption{padding:.6rem .95rem;font-size:.86rem;font-weight:600;line-height:1.7;color:var(--icv-ink);border-top:3px solid var(--icv-ink);background:var(--icv-paper2)}.icv-figure figcaption b{font-weight:900}.icv-talk{display:flex;flex-direction:column;gap:.9rem;margin:.4rem 0 0}.icv-bubble{position:relative;max-width:88%;background:#fff;color:var(--icv-ink);border:3px solid var(--icv-ink);border-radius:16px;padding:.7rem .95rem;font-weight:600;box-shadow:4px 4px 0 rgba(0,0,0,.18)}.icv-bubble b.icv-bubble__who{display:block;font-size:.72rem;font-weight:900;letter-spacing:.04em;margin-bottom:.15rem}.icv-bubble__face{font-style:normal}.icv-bubble--me{align-self:flex-end;background:#e4faff}.icv-bubble--me b.icv-bubble__who{color:#0e7490}.icv-bubble--me:after{content:"";position:absolute;right:26px;bottom:-16px;border:9px solid transparent;border-top:9px solid var(--icv-ink)}.icv-bubble--me:before{content:"";position:absolute;right:28px;bottom:-11px;border:7px solid transparent;border-top-color:#e4faff;z-index:1}.icv-bubble--ai{align-self:flex-start;background:#e7ebff}.icv-bubble--ai b.icv-bubble__who{color:#4338ca}.icv-bubble--ai:after{content:"";position:absolute;left:26px;bottom:-16px;border:9px solid transparent;border-top:9px solid var(--icv-ink)}.icv-bubble--ai:before{content:"";position:absolute;left:28px;bottom:-11px;border:7px solid transparent;border-top-color:#e7ebff;z-index:1}.icv-sfx{display:block;text-align:center;margin:1.3rem 0;font-family:Montserrat,Shippori Mincho,sans-serif;font-weight:900;font-size:clamp(2.2rem,9vw,4rem);line-height:.95;color:var(--icv-cyan);-webkit-text-stroke:2px var(--icv-ink);text-shadow:5px 5px 0 var(--icv-ink);transform:rotate(-4deg);letter-spacing:.02em}.icv-sfx--pink{color:var(--icv-pink)}.icv-sfx--lime{color:var(--icv-lime)}.icv-ba{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;margin:1.1rem 0}.icv-ba__col{background:var(--icv-paper);color:var(--icv-ink);border:4px solid var(--icv-ink);border-radius:var(--icv-radius);box-shadow:5px 5px 0 var(--icv-ink);padding:1rem .95rem}.icv-ba__h{margin:0 0 .5rem;font-weight:900;font-size:1rem}.icv-ba__col--before .icv-ba__h{color:#b91c1c}.icv-ba__col--after .icv-ba__h{color:#0e7490}.icv-ba__col ul{margin:0;padding-left:1.1rem}.icv-ba__col li{margin:.25rem 0;font-size:.92rem}@media (max-width:560px){.icv-ba{grid-template-columns:1fr}}.icv-card{background:hsla(0,0%,100%,.04);border:1.5px solid hsla(0,0%,100%,.14);border-left:5px solid var(--icv-cyan);border-radius:12px;padding:1.1rem 1.15rem;margin:1rem 0}.icv-card__h{margin:0 0 .5rem;font-weight:900;color:#fff;font-size:1.05rem}.icv-card p{margin:.5rem 0 0;color:#d7def4}.icv-card strong{color:var(--icv-cyan)}.icv-steps{display:grid;gap:.7rem;margin:1rem 0}.icv-step{display:grid;grid-template-columns:auto 1fr;gap:.8rem;align-items:start;background:hsla(0,0%,100%,.04);border:1.5px solid hsla(0,0%,100%,.14);border-radius:12px;padding:.8rem .9rem}.icv-step__no{font-family:Montserrat,sans-serif;font-weight:900;font-size:.9rem;color:var(--icv-ink);background:var(--icv-cyan);width:30px;height:30px;border-radius:8px;display:grid;place-items:center}.icv-step b{color:#fff}.icv-step p{margin:.15rem 0 0}.icv-step p,.icv-step ul{color:#cdd6f0;font-size:.92rem}.icv-step ul{margin:.4rem 0 .2rem;padding-left:1.1rem}.icv-step ul li{margin:.15rem 0}.icv-step--big{margin:1.2rem 0 .6rem;padding:1.05rem 1.1rem;gap:1rem;background:linear-gradient(135deg,rgba(34,211,238,.1),rgba(99,102,241,.08));border-color:rgba(34,211,238,.32)}.icv-step--big .icv-step__no{width:44px;height:44px;border-radius:12px;font-size:1.25rem}.icv-step--big>div>b{font-size:1.12rem}.icv-step--big p{font-size:.98rem;line-height:1.65}.icv-step__hint{margin-top:.5rem!important;padding:.5rem .7rem;border-radius:8px;background:rgba(34,211,238,.1);border-left:3px solid var(--icv-cyan);color:#e0e9ff!important;font-size:.88rem!important}.icv-code{border:1.5px solid hsla(0,0%,100%,.16);border-radius:12px;overflow:hidden;margin:1rem 0;background:#0a1020}.icv-code__bar{display:flex;justify-content:space-between;align-items:center;padding:.45rem .8rem;background:#14203a;font-family:Montserrat,monospace;font-size:.76rem;color:#aeb9e0;border-bottom:1px solid hsla(0,0%,100%,.1)}.icv-code__pre{margin:0;padding:.9rem 1rem;overflow-x:auto;font-family:Consolas,SFMono-Regular,Menlo,monospace;font-size:.82rem;line-height:1.7;color:#e3e9ff}.icv-lesson{background:var(--icv-paper);color:var(--icv-ink);border:4px dashed var(--icv-ink);border-radius:var(--icv-radius);padding:1.1rem;margin:1.3rem 0}.icv-lesson__h{margin:0 0 .5rem;font-weight:900;font-size:1.05rem}.icv-lesson ul{margin:0;padding-left:1.2rem}.icv-lesson li{margin:.3rem 0;font-weight:600}.icv-note{margin:1.4rem 0 0;padding:.9rem 1rem;background:rgba(34,211,238,.08);border:1.5px solid rgba(34,211,238,.4);border-radius:12px;color:#d6f6ff;font-size:.86rem;line-height:1.8}.icv-note b{color:#fff}.icv-pull{margin:1.5rem auto;text-align:center;max-width:30ch;font-family:Shippori Mincho,Noto Sans JP,serif;font-weight:900;font-size:clamp(1.15rem,3.4vw,1.5rem);line-height:1.6;color:var(--icv-cyan)}.icv-cta{max-width:var(--icv-readw);margin:2.2rem auto 0;padding:1.6rem 1.2rem;text-align:center;background:hsla(0,0%,100%,.04);border:1.5px solid hsla(0,0%,100%,.14);border-radius:18px}.icv-cta__title{margin:0 0 .5rem;color:#fff;font-weight:900;font-size:clamp(1.2rem,3.6vw,1.6rem);line-height:1.5;text-wrap:balance}.icv-cta__desc{margin:0 auto 1rem;max-width:50ch;color:#cdd6f0;font-size:.95rem}.icv-cta__btns{display:flex;flex-wrap:wrap;gap:.6rem;justify-content:center}.icv-cta__btn{font-weight:700;text-decoration:none;font-size:.9rem;color:#fff;background:hsla(0,0%,100%,.07);border:1.5px solid hsla(0,0%,100%,.2);border-radius:999px;padding:.5rem 1rem;transition:background .2s,transform .1s}.icv-cta__btn:hover{background:hsla(0,0%,100%,.14)}.icv-cta__btn--primary{color:var(--icv-ink);background:var(--icv-cyan);border-color:var(--icv-cyan)}.icv-rel{max-width:var(--icv-readw);margin:2rem auto 0;padding:0 1.1rem}.icv-rel__kicker{display:block;font-weight:900;color:var(--icv-cyan);font-size:.85rem;letter-spacing:.04em;margin-bottom:.8rem}.icv-rel__grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}@media (max-width:560px){.icv-rel__grid{grid-template-columns:1fr}}.icv-rel__card{display:flex;flex-direction:column;gap:.25rem;background:hsla(0,0%,100%,.04);border:1.5px solid hsla(0,0%,100%,.14);border-radius:14px;padding:.9rem 1rem;text-decoration:none;transition:border-color .2s,transform .1s}.icv-rel__card:hover{border-color:var(--icv-cyan);transform:translateY(-2px)}.icv-rel__tag{font-size:.76rem;font-weight:700;color:var(--icv-cyan)}.icv-rel__title{font-weight:800;color:#fff;font-size:1rem}.icv-rel__desc{color:#c4cdea;font-size:.86rem}.icv-rel__go{color:var(--icv-cyan);font-weight:700;font-size:.85rem;margin-top:.2rem}a{color:#7fe6ff}.icv-panel a{color:#1d4ed8}