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a:hover{color:var(--green);opacity:1}.hero{position:relative;min-height:56vh;display:flex;align-items:center;--overlay:.45;background-image:linear-gradient(rgba(0,0,0,var(--overlay)),rgba(0,0,0,var(--overlay))),url(/hero.jpg);background-size:cover;background-position:70%}.hero-inner{padding:56px 0}.badge{display:inline-block;background:rgba(16,185,129,.15);color:var(--green);border:1px solid rgba(16,185,129,.35);padding:4px 10px;border-radius:999px;font-size:.85rem}.typing{overflow:hidden;white-space:nowrap;border-right:2px solid var(--green);width:0;animation:typing 2.8s steps(var(--chars,24)) .2s forwards,blink 1s step-end infinite}.hero .typing{font-size:clamp(1.8rem,4.5vw,3rem);line-height:1.15}@keyframes typing{0%{width:0}to{width:calc(var(--chars, 24) * 1ch)}}@keyframes blink{50%{border-color:transparent}}.lead{color:#d1d5db;max-width:60ch}.cta{margin-top:18px;display:flex;gap:12px}.btn{display:inline-block;padding:10px 16px;border-radius:10px;border:1px solid hsla(0,0%,100%,.14);color:var(--white)}.btn-primary{background:var(--green);border-color:var(--green-600);color:#001b10;font-weight:600}.btn-primary:hover{filter:brightness(.95)}.btn-ghost:hover{border-color:var(--green);color:var(--green)}.section{padding:40px 0}@media (max-width:750px){.hero{min-height:44vh;background-image:linear-gradient(rgba(0,0,0,var(--overlay)),rgba(0,0,0,var(--overlay))),url(/hero-mobile.jpg);background-position:50%;--overlay:.60}.hero-inner{padding:28px 0;margin-left:10%;margin-right:10%}.lead{font-size:.95rem}.cta{flex-wrap:wrap}.qiita-banner{display:none}}@media (max-width:500px){.hero .typing{font-size:clamp(1.1rem,6.5vw,1.6rem)}}.contact-form{background:#fff;color:#0b0b0b}.contact-form iframe{background:#fff!important}.qiita-section{padding:36px 0}.qiita-grid{display:grid;grid-template-columns:1fr;grid-gap:20px;gap:20px;border:1px solid hsla(0,0%,100%,.12);border-radius:12px;padding:16px}@media (min-width:900px){.qiita-grid{grid-template-columns:1fr 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