:root{color-scheme:dark;--bg:#090b14;--panel:#141329;--ink:#f7f5ff;--muted:#b9b5ca;--lime:#c9ff36;--cyan:#18c8ff;--violet:#4a2386;--line:#322c52;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 90% 0,#28154b 0,transparent 34rem),var(--bg);color:var(--ink);line-height:1.7}a{color:var(--cyan)}nav{max-width:980px;margin:auto;padding:1.3rem 1.4rem;display:flex;justify-content:space-between;align-items:center;gap:1.5rem}nav a{text-decoration:none;color:var(--ink)}.nav-links{display:flex;gap:1.25rem;font-size:.92rem}.brand{font-size:1.35rem;font-weight:800;letter-spacing:.06em}.hero{min-height:34rem;background:linear-gradient(135deg,rgba(74,35,134,.95),rgba(7,12,28,.84));border-bottom:1px solid var(--line)}.hero-copy,.subhead>h1,.subhead>p{max-width:980px;margin-left:auto;margin-right:auto;padding-left:1.4rem;padding-right:1.4rem}.hero-copy{padding-top:5rem;padding-bottom:5rem}.mark{display:inline-grid;place-items:center;width:4rem;height:4rem;border:2px solid var(--lime);border-radius:50%;font-size:2rem;background:#1f1539}.eyebrow{color:var(--lime);font-weight:800;letter-spacing:.1em;text-transform:uppercase}.hero h1,.subhead h1{font-size:clamp(2.35rem,7vw,5.3rem);line-height:1.03;letter-spacing:-.045em;margin:.7rem 0 1.5rem}.hero-copy>p:last-child{max-width:46rem;color:var(--muted);font-size:1.08rem}.subhead{padding-bottom:4rem;background:linear-gradient(135deg,var(--violet),#10152e);border-bottom:1px solid var(--line)}.subhead h1{margin-top:4rem}.subhead h1 span{color:var(--lime)}.subhead>p{color:var(--muted)}main{max-width:980px;margin:auto;padding:2rem 1.4rem 6rem}section{padding:2.4rem 0;border-bottom:1px solid var(--line)}h2{font-size:1.65rem;margin-top:0}h3{font-size:1.12rem;margin:.2rem 0 .75rem}h4{margin:1.25rem 0 .25rem;color:var(--lime)}p,li,td{color:var(--muted)}li{padding:.25rem 0}aside{margin-top:1.5rem;padding:1rem 1.1rem;background:var(--panel);border-left:4px solid var(--lime);color:var(--muted)}aside strong,.note strong{color:var(--ink)}.intro-grid,.grid,.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.intro-grid article,.grid article,.faq-grid article{padding:1.35rem;background:var(--panel);border:1px solid var(--line);border-radius:1rem}.grid{grid-template-columns:repeat(3,1fr)}.grid article h2{color:var(--lime)}.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:1rem}table{width:100%;border-collapse:collapse;background:var(--panel)}th,td{text-align:left;vertical-align:top;padding:1rem;border-bottom:1px solid var(--line)}th{color:var(--ink);font-size:.92rem}tbody tr:last-child td{border-bottom:0}td strong{color:var(--lime)}.step-card{display:grid;grid-template-columns:3rem 1fr;gap:1rem;margin:1rem 0;padding:1.35rem;background:var(--panel);border:1px solid var(--line);border-radius:1rem}.step-number{display:grid;place-items:center;width:2.6rem;height:2.6rem;border-radius:50%;background:var(--lime);color:#10131c;font-weight:900}.note{padding:.8rem 1rem;background:#0e1020;border-radius:.7rem;font-size:.94rem}.button{display:inline-block;padding:.75rem 1.1rem;background:var(--lime);color:#10131c;text-decoration:none;font-weight:800;border-radius:999px}footer{padding:2rem 1.4rem;text-align:center;color:#89849c}@media(max-width:700px){.hero{min-height:0}.hero-copy{padding-top:3rem}.grid,.intro-grid,.faq-grid{grid-template-columns:1fr}.hero h1,.subhead h1{font-size:2.6rem}.nav-links a:not(:last-child){display:none}.step-card{grid-template-columns:1fr}.step-number{width:2.2rem;height:2.2rem}table,thead,tbody,tr,th,td{display:block}thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}tbody tr{padding:1rem;border-bottom:1px solid var(--line)}tbody tr:last-child{border-bottom:0}td{padding:.35rem 0;border:0}td:before{display:block;margin-bottom:.05rem;color:var(--ink);font-size:.78rem;font-weight:800}td:nth-child(1):before{content:"対象機種"}td:nth-child(2):before{content:"最初のセンサー登録"}td:nth-child(3):before{content:"統計画面"}}