:root{
  --main:#0f766e;
  --dark:#064e49;
  --deep:#073b38;
  --accent:#14b8a6;
  --bg:#f6f8f7;
  --bg2:#eef7f5;
  --text:#1f2937;
  --muted:#6b7280;
  --card:#ffffff;
  --soft:#e0f2f1;
  --line:#d1d5db;
  --orange:#f97316;
  --yellow:#fef3c7;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.85;letter-spacing:.01em}
a{color:inherit}
.header{position:sticky;top:0;z-index:20;background:#ffffffee;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{max-width:1160px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{font-weight:850;color:var(--dark);letter-spacing:.03em;white-space:nowrap}
.navlinks{display:flex;gap:14px;font-size:14px;color:#374151;flex-wrap:wrap;align-items:center}
.navlinks a{text-decoration:none}.navlinks a:hover{color:var(--main)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--main);color:white;text-decoration:none;border-radius:999px;padding:13px 22px;font-weight:800;box-shadow:0 8px 20px rgba(15,118,110,.24);border:1px solid transparent;transition:.2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(15,118,110,.28)}
.btn.secondary{background:white;color:var(--main);border:1px solid var(--main);box-shadow:none}.btn.secondary:hover{background:#f0fdfa}
.btn.light{background:white;color:var(--dark);box-shadow:none}.btn.light:hover{background:#ecfeff}
.hero{background:radial-gradient(circle at 78% 20%,rgba(20,184,166,.42),transparent 30%),linear-gradient(135deg,#0f766e 0%,#115e59 58%,#073b38 100%);color:white;overflow:hidden}
.hero-inner{max-width:1160px;margin:0 auto;padding:74px 20px 80px;display:grid;grid-template-columns:1.1fr .9fr;gap:42px;align-items:center}
.badge{display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:5px 13px;font-size:13px;margin-bottom:18px;color:#eafffb}
.hero h1{font-size:44px;line-height:1.25;margin:0 0 18px;letter-spacing:.02em;font-weight:900}
.hero p{font-size:18px;color:#d9f5f1;margin:0 0 26px;max-width:720px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.micro{font-size:13px;color:#ccefe9;margin-top:14px}.micro.dark{color:var(--muted)}
.hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);border-radius:26px;padding:28px;box-shadow:0 18px 50px rgba(0,0,0,.16)}
.hero-card h3{margin:0 0 12px;font-size:20px}.cycle{position:relative;height:360px;margin-top:6px}
.center-core{position:absolute;inset:50%;transform:translate(-50%,-50%);width:130px;height:130px;border-radius:50%;background:#ffffff;color:var(--dark);display:flex;align-items:center;justify-content:center;text-align:center;font-weight:900;box-shadow:0 12px 34px rgba(0,0,0,.18);line-height:1.45}
.orbit{position:absolute;inset:24px;border:1px dashed rgba(255,255,255,.42);border-radius:50%}
.node{position:absolute;width:92px;height:92px;border-radius:22px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);display:flex;align-items:center;justify-content:center;text-align:center;font-weight:800;color:#fff;line-height:1.35;backdrop-filter:blur(8px)}
.n1{left:50%;top:0;transform:translateX(-50%)}.n2{right:0;top:28%;}.n3{right:12%;bottom:4%;}.n4{left:12%;bottom:4%;}.n5{left:0;top:28%;}
.section{max-width:1160px;margin:0 auto;padding:68px 20px}.section.narrow{max-width:940px}.section h2{font-size:31px;line-height:1.35;margin:0 0 14px;color:#0f3f3b;font-weight:900}.section-label{display:inline-block;color:var(--main);font-weight:900;font-size:13px;margin-bottom:10px;letter-spacing:.08em;text-transform:uppercase}.lead{font-size:17px;color:#4b5563;margin:0 0 30px}.center{text-align:center}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}.card{background:var(--card);border-radius:20px;padding:24px;border:1px solid #e5e7eb;box-shadow:0 3px 14px rgba(0,0,0,.04)}.card h3{margin:0 0 8px;color:var(--dark);font-size:20px}.card p{margin:0;color:#4b5563}.card ul{margin:10px 0 0;padding-left:20px}.problem{border-left:6px solid var(--orange)}.problem h3{font-size:18px}.note{background:var(--soft);border:1px solid #bde8e4;color:var(--dark);border-radius:20px;padding:20px;font-weight:800;margin-top:22px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}.compare-card{background:white;border-radius:22px;border:1px solid #e5e7eb;padding:24px;position:relative}.compare-card.weak{border-top:6px solid #9ca3af}.compare-card.strong{border-top:6px solid var(--main);box-shadow:0 8px 24px rgba(15,118,110,.1)}.compare-title{font-weight:900;color:var(--dark);font-size:20px;margin-bottom:16px}.process{display:flex;flex-direction:column;gap:10px}.pill{background:#f3f4f6;border:1px solid #e5e7eb;border-radius:999px;padding:10px 14px;text-align:center;font-weight:800;color:#374151}.strong .pill{background:#f0fdfa;border-color:#bde8e4;color:var(--dark)}.arrow{text-align:center;color:var(--muted);font-weight:900;line-height:1}.strong .arrow{color:var(--main)}
.os-box{background:white;border:1px solid #e5e7eb;border-radius:26px;padding:28px;box-shadow:0 8px 28px rgba(0,0,0,.05)}.os-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}.mini-cycle{background:linear-gradient(135deg,#f0fdfa,#ffffff);border:1px solid #cfeeea;border-radius:24px;padding:24px}.mini-cycle .row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}.mini-item{background:white;border:1px solid #dbe7e5;border-radius:16px;padding:14px;text-align:center;font-weight:900;color:var(--dark)}.core-line{background:var(--main);color:white;border-radius:18px;padding:16px;text-align:center;font-weight:900}.features{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.feature{background:#f8fafc;border:1px solid #e5e7eb;border-radius:16px;padding:14px;text-align:center;color:#374151;font-weight:800;font-size:14px}
.bg-soft{background:var(--bg2);border-top:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb}.diagnosis-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:center}.diagnosis-visual{background:white;border:1px solid #dbe7e5;border-radius:24px;padding:22px;box-shadow:0 8px 26px rgba(0,0,0,.05)}.screen{background:#f8fafc;border:1px solid #e5e7eb;border-radius:18px;padding:18px}.bar{height:10px;background:#e5e7eb;border-radius:999px;overflow:hidden;margin:10px 0}.bar span{display:block;height:100%;background:var(--main);border-radius:999px}.check-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}.check-list li{background:white;border:1px solid #e5e7eb;border-radius:16px;padding:12px 14px}.check-list li::before{content:"✓";color:var(--main);font-weight:900;margin-right:8px}
.timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.step{background:white;border-radius:18px;padding:18px;text-align:center;border:1px solid #e5e7eb;position:relative}.step .num{width:34px;height:34px;border-radius:50%;background:var(--soft);color:var(--dark);display:inline-flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:8px}.step strong{color:var(--dark)}.monitor{background:linear-gradient(135deg,#0f766e,#064e49);color:white;border-radius:30px;padding:38px;display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}.monitor h2{color:white;margin-top:0}.monitor p,.monitor li{color:#dcf8f4}.monitor-card{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:22px;padding:22px}.monitor-card h3{margin:0 0 10px;color:white}.monitor-card ul{margin:0;padding-left:20px}.faq{display:grid;gap:14px}.faq details{background:white;border:1px solid #e5e7eb;border-radius:18px;padding:18px 20px}.faq summary{cursor:pointer;font-weight:900;color:var(--dark);list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"＋";float:right;color:var(--main)}.faq details[open] summary::after{content:"－"}.faq p{margin:12px 0 0;color:#4b5563}.final-cta{background:#0f766e;color:white;text-align:center}.final-cta .section h2{color:white}.final-cta p{color:#d9f5f1}.footer{background:#073b38;color:#d1fae5;padding:28px 20px;text-align:center;font-size:13px}.footer p{margin:0}.small{font-size:13px;color:var(--muted)}
@media(max-width:920px){.hero-inner,.os-grid,.diagnosis-panel,.monitor{grid-template-columns:1fr}.compare{grid-template-columns:1fr}.timeline{grid-template-columns:repeat(2,1fr)}.features{grid-template-columns:repeat(2,1fr)}.cycle{height:320px}.hero h1{font-size:34px}.section h2{font-size:27px}.nav{align-items:flex-start;flex-direction:column}.navlinks{font-size:13px}}
@media(max-width:560px){.hero-inner{padding:52px 20px}.hero h1{font-size:30px}.hero p{font-size:16px}.section{padding:52px 18px}.timeline{grid-template-columns:1fr}.features{grid-template-columns:1fr}.node{width:78px;height:78px;font-size:13px}.center-core{width:112px;height:112px;font-size:14px}.cycle{height:290px}.monitor{padding:26px}.btn{width:100%}.cta-row{width:100%}.navlinks{display:none}}


.footer-links{margin-top:10px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.footer-links a{color:#d1fae5;text-decoration:none;border-bottom:1px solid rgba(209,250,229,.35)}
.footer-links a:hover{color:white;border-bottom-color:white}