:root{
--paper:#F2F5F7; --line:#D8E0E5; --ink:#0E1B24; --ink-soft:#42525E;
--led:#0F7B5F; --led-soft:#E2F0EB; --amber:#C77E1E; --amber-soft:#F7EDDD;
--card:#FFFFFF; --mono:ui-monospace,"SF Mono","Cascadia Mono","Roboto Mono",Menlo,monospace;
--sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","BIZ UDPGothic","Yu Gothic UI","Noto Sans JP",Meiryo,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.85;font-size:16px;
background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
background-size:64px 64px;background-attachment:fixed}
a{color:var(--led);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 22px}
.tag{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;color:var(--led);border:1px solid var(--led);
display:inline-block;padding:2px 10px;border-radius:2px;background:var(--led-soft)}
.tag.amber{color:var(--amber);border-color:var(--amber);background:var(--amber-soft)}
.led{display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--led);
box-shadow:0 0 0 3px var(--led-soft);vertical-align:1px;animation:pulse 2.4s ease-in-out infinite}
.led.off{background:#B9C4CC;box-shadow:0 0 0 3px #E7ECEF;animation:none}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
@media (prefers-reduced-motion:reduce){.led{animation:none}}
#previewBar{background:var(--amber-soft);border-bottom:1px solid var(--amber);color:#6B4410;
font-family:var(--mono);font-size:.72rem;letter-spacing:.02em;text-align:center;padding:7px 14px;line-height:1.5}
header{position:sticky;top:0;z-index:50;background:rgba(242,245,247,.92);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-family:var(--mono);font-weight:700;font-size:1.15rem;letter-spacing:.04em;color:var(--ink)}
.logo .dot{color:var(--led)}
nav ul{display:flex;gap:26px;list-style:none}
nav a{color:var(--ink-soft);font-size:.88rem;font-weight:600}
nav a:hover{color:var(--led);text-decoration:none}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:4px;padding:6px 10px;font-family:var(--mono);cursor:pointer;color:var(--ink)}
.hero{padding:88px 0 64px;border-bottom:1px solid var(--line)}
.hero h1{font-size:clamp(1.9rem,4.6vw,3.1rem);line-height:1.35;font-weight:800;letter-spacing:.01em;margin:20px 0 18px}
.hero h1 em{font-style:normal;color:var(--led)}
.hero p.lead{max-width:620px;color:var(--ink-soft);font-size:1.02rem}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.cta-row{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 26px;border-radius:4px;font-weight:700;font-size:.95rem;border:1px solid var(--ink);transition:transform .15s ease}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn.primary{background:var(--ink);color:#fff}
.btn.ghost{color:var(--ink);background:transparent}
.flow{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:26px 24px;font-family:var(--mono);font-size:.8rem}
.flow .row{display:flex;align-items:center;gap:10px;margin:12px 0}
.flow .node{border:1.5px solid var(--ink);border-radius:4px;padding:8px 12px;background:var(--paper);white-space:nowrap}
.flow .node.ai{border-color:var(--led);color:var(--led);background:var(--led-soft);font-weight:700}
.flow .arrow{flex:1;height:0;border-top:1.5px solid var(--ink);position:relative;min-width:26px}
.flow .arrow::after{content:"";position:absolute;right:-1px;top:-4.5px;border:4px solid transparent;border-left-color:var(--ink)}
.flow .blocked{color:#B03A2E;border-top-style:dashed;border-top-color:#B03A2E}
.flow .blocked::after{border-left-color:#B03A2E}
.flow .x{color:#B03A2E;font-weight:700;font-size:1rem}
.flow .cap{color:var(--ink-soft);font-size:.72rem;margin-top:14px;font-family:var(--sans)}
.flow .status{display:flex;justify-content:space-between;border-top:1px dashed var(--line);margin-top:16px;padding-top:12px;color:var(--ink-soft)}
section{padding:74px 0;border-bottom:1px solid var(--line)}
h2{font-size:clamp(1.4rem,3vw,1.9rem);font-weight:800;margin:14px 0 12px;line-height:1.45}
.sec-lead{color:var(--ink-soft);max-width:680px;margin-bottom:38px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:26px 24px}
.card h3{font-size:1.08rem;font-weight:800;margin:10px 0 8px}
.card p{font-size:.92rem;color:var(--ink-soft)}
.card .role{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;color:var(--ink-soft)}
.card ul{margin:10px 0 0 1.2em;font-size:.9rem;color:var(--ink-soft)}
.card li{margin:4px 0}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:26px 0}
.step{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px 16px}
.step .n{font-family:var(--mono);color:var(--led);font-weight:700;font-size:.75rem}
.step h4{font-size:.95rem;margin:6px 0 4px}
.step p{font-size:.82rem;color:var(--ink-soft);line-height:1.7}
table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;font-size:.9rem}
th,td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}
th{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--ink-soft);background:var(--paper)}
tr:last-child td{border-bottom:none}
.pilot{background:var(--ink);color:#E8EEF2;border-radius:10px;padding:38px 34px;margin-top:34px;display:grid;grid-template-columns:1.4fr .6fr;gap:26px;align-items:center}
.pilot h3{font-size:1.25rem;margin:10px 0 8px;color:#fff}
.pilot p{font-size:.9rem;color:#B9C7D1}
.pilot .btn{background:var(--led);border-color:var(--led);color:#fff;text-align:center}
dl{display:grid;grid-template-columns:140px 1fr;background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;font-size:.92rem}
dt{font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--paper);color:var(--ink-soft)}
dd{padding:14px 18px;border-bottom:1px solid var(--line)}
dl :last-of-type{border-bottom:none}
form{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:32px 30px;max-width:640px}
label{display:block;font-weight:700;font-size:.88rem;margin:18px 0 6px}
label .req{color:#B03A2E;font-size:.75rem;margin-left:6px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:4px;font-size:.95rem;font-family:var(--sans);background:var(--paper);color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--led);outline-offset:1px;border-color:var(--led)}
textarea{min-height:150px;resize:vertical}
.hp-field{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form-msg{margin-top:16px;font-size:.9rem;font-weight:700;display:none}
.form-msg.ok{display:block;color:var(--led)}
.form-msg.ng{display:block;color:#B03A2E}
button[type=submit]{margin-top:22px;width:100%;cursor:pointer}
button[type=submit]:disabled{opacity:.5;cursor:wait}
footer{padding:40px 0 60px;color:var(--ink-soft);font-size:.82rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer .mono{font-family:var(--mono)}
@media(max-width:840px){
.hero-grid,.grid2,.grid3,.pilot{grid-template-columns:1fr}
.steps{grid-template-columns:1fr 1fr}
nav ul{display:none;position:absolute;top:60px;right:0;left:0;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 22px 16px}
nav ul.open{display:flex}
nav li{padding:9px 0}
.menu-btn{display:block}
dl{grid-template-columns:110px 1fr}
}