:root{
  --blue:#1d5fe0;
  --blue-deep:#0d3ba8;
  --blue-dark:#123a8f;
  --navy:#0f2354;
  --ink:#3b4a63;
  --ink-soft:#64748b;
  --bg-soft:#f1f6ff;
  --bg-softer:#f7faff;
  --line:#dde7f5;
  --green:#16a34a;
  --card-shadow:0 8px 30px rgba(23,58,138,.08);
  --radius:16px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans JP',"Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1080px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo img{height:34px;width:auto}
.nav{display:flex;align-items:center;gap:32px}
.nav a{font-size:14px;font-weight:500;color:var(--navy);transition:color .2s}
.nav a:hover{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:999px;transition:transform .2s,box-shadow .2s,background .2s;cursor:pointer;border:none;font-family:inherit}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(29,95,224,.32)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-2px)}
.btn-outline{background:#fff;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--bg-soft);transform:translateY(-2px)}
.btn-sm{font-size:13.5px;padding:10px 22px}
.btn-lg{font-size:15px;padding:15px 34px}
.btn .arrow{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:50%;background:rgba(255,255,255,.25);font-size:11px;line-height:1}
.btn-outline .arrow{background:var(--blue);color:#fff}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:22px;height:2px;background:var(--navy);margin:5px 0;border-radius:2px}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fdfeff 0%,#f2f7ff 100%);padding:72px 0 96px}
.hero-deco{position:absolute;pointer-events:none;user-select:none}
.hero-deco.ring1{width:340px;top:-120px;left:-110px;opacity:.6}
.hero-deco.ring2{width:220px;bottom:-60px;right:32%;opacity:.5}
.hero-deco.dots1{width:150px;left:38%;top:60px;opacity:.55}
.hero-deco.dots2{width:130px;right:-20px;bottom:100px;opacity:.5}
.hero-deco.blur1{width:520px;right:-140px;top:-160px;opacity:.7}
.hero-inner{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.hero-title{font-size:clamp(28px,3.6vw,42px);font-weight:900;line-height:1.5;color:var(--navy);letter-spacing:.01em}
.hero-title-line{display:inline-block;white-space:nowrap}
.hero-title .em{color:var(--blue)}
.hero-lead{margin-top:22px;font-size:15px;color:var(--ink);max-width:30em}
.hero-ctas{display:flex;gap:16px;margin-top:30px;flex-wrap:wrap}
.hero-badges{display:flex;gap:10px;margin-top:26px;flex-wrap:wrap}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:12.5px;font-weight:700;color:var(--navy);box-shadow:0 2px 8px rgba(23,58,138,.06)}
.hero-badge img{width:16px;height:16px}
.hero-visual{position:relative;min-height:480px}
.float-card{position:absolute;border-radius:14px;box-shadow:0 14px 40px rgba(23,58,138,.16);background:#fff;overflow:hidden}
.float-card img{width:100%;height:auto}
.fc-workflow{width:54%;top:2%;left:2%;z-index:2;animation:float 6s ease-in-out infinite}
.fc-task{width:44%;top:47%;left:0;z-index:3;animation:float 7s ease-in-out .8s infinite}
.fc-assistant{width:50%;top:10%;right:0;z-index:4;animation:float 6.5s ease-in-out .4s infinite}
.fc-analytics{width:52%;bottom:2%;right:2%;z-index:2;animation:float 7.5s ease-in-out 1.2s infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media (prefers-reduced-motion:reduce){.float-card{animation:none}html{scroll-behavior:auto}}

/* ===== Sections common ===== */
section{padding:88px 0}
.sec-title{text-align:center;font-size:clamp(22px,2.6vw,28px);font-weight:900;color:var(--navy);letter-spacing:.04em}
.sec-title::after{content:"";display:block;width:44px;height:4px;border-radius:2px;background:var(--blue);margin:16px auto 0}
.sec-lead{text-align:center;margin-top:18px;color:var(--ink-soft);font-size:14px}

/* ===== Problems ===== */
.problems{background:#fff}
.problem-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:48px}
.problem-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:44px 14px 26px;text-align:center;box-shadow:var(--card-shadow);transition:transform .25s,box-shadow .25s}
.problem-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(23,58,138,.13)}
.problem-num{position:absolute;top:-14px;left:50%;transform:translateX(-50%);width:32px;height:32px}
.problem-icon{width:52px;height:52px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center}
.problem-icon img{max-width:100%;max-height:100%}
.problem-card p{font-size:13px;font-weight:700;color:var(--navy);line-height:1.6}

/* ===== Can do ===== */
.cando{background:var(--bg-softer)}
.cando-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.cando-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 22px;text-align:center;box-shadow:var(--card-shadow);transition:transform .25s,box-shadow .25s}
.cando-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(23,58,138,.13)}
.cando-icon{width:72px;height:72px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;background:var(--bg-soft);border-radius:18px;padding:14px}
.cando-card h3{font-size:16.5px;font-weight:900;color:var(--blue);margin-bottom:12px;letter-spacing:.02em}
.cando-card p{font-size:13px;color:var(--ink);line-height:1.8}

/* ===== Reasons ===== */
.reasons{background:#fff}
.reason-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.reason-card{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--card-shadow);transition:transform .25s}
.reason-card:hover{transform:translateY(-4px)}
.reason-text h3{font-size:16px;font-weight:900;color:var(--navy);margin-bottom:8px}
.reason-text p{font-size:12.5px;color:var(--ink-soft);line-height:1.8}
.reason-img{flex:0 0 108px}
.reason-img img{border-radius:10px}
.reason-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.strip-item{background:var(--bg-soft);border-radius:12px;padding:18px 20px;text-align:center}
.strip-item strong{display:block;font-size:14.5px;font-weight:900;color:var(--navy);letter-spacing:.03em}
.strip-item span{display:block;margin-top:4px;font-size:12px;color:var(--ink-soft)}
.strip-item strong .sep{color:var(--blue);margin:0 4px}

/* ===== Services / pricing ===== */
.services{background:var(--bg-softer)}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.service-card{position:relative;border-radius:var(--radius);padding:34px 22px 28px;text-align:center;box-shadow:var(--card-shadow);border:1px solid transparent;display:flex;flex-direction:column;align-items:center;transition:transform .25s,box-shadow .25s}
.service-card:hover{transform:translateY(-5px);box-shadow:0 16px 38px rgba(23,58,138,.15)}
.sv-blue{background:linear-gradient(180deg,#f2f7ff,#fff);border-color:#d5e3fb}
.sv-green{background:linear-gradient(180deg,#effaf3,#fff);border-color:#d1eeda}
.sv-purple{background:linear-gradient(180deg,#f6f2ff,#fff);border-color:#e2d8f7}
.sv-orange{background:linear-gradient(180deg,#fff6ee,#fff);border-color:#f7e0c8}
.service-icon{width:64px;height:64px;margin-bottom:16px}
.sv-green .service-icon{filter:hue-rotate(-95deg) saturate(1.1)}
.sv-purple .service-icon{filter:hue-rotate(50deg) saturate(1.1)}
.sv-orange .service-icon{filter:hue-rotate(155deg) saturate(2) brightness(1.05)}
.service-card h3{font-size:16px;font-weight:900;line-height:1.5}
.sv-blue h3{color:var(--blue)}
.sv-green h3{color:#0e9f52}
.sv-purple h3{color:#7c4fd8}
.sv-orange h3{color:#e07b1f}
.service-card .sub{font-size:12px;color:var(--ink-soft);margin-top:6px;min-height:2.6em}
.service-price{font-size:26px;font-weight:900;color:var(--navy);margin:14px 0 18px;letter-spacing:.02em}
.service-price small{font-size:15px;font-weight:700}
.service-price-text{font-size:20px}
.service-cta{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;border-radius:999px;padding:9px 24px;border:2px solid;transition:transform .2s}
.service-cta:hover{transform:translateY(-2px)}
.sv-blue .service-cta{color:var(--blue);border-color:var(--blue)}
.sv-green .service-cta{color:#0e9f52;border-color:#0e9f52}
.sv-purple .service-cta{color:#7c4fd8;border-color:#7c4fd8}
.sv-orange .service-cta{color:#e07b1f;border-color:#e07b1f}
.service-note{text-align:center;margin-top:26px;font-size:12px;color:var(--ink-soft)}

/* ===== Flow ===== */
.flow{background:#fff}
.flow-grid{display:flex;justify-content:space-between;align-items:flex-start;margin-top:56px;gap:8px}
.flow-step{flex:1;text-align:center;position:relative;padding-top:16px}
.flow-num{position:absolute;top:0;left:50%;transform:translateX(-50%) translateY(-50%);width:34px;height:34px;z-index:2}
.flow-icon{width:88px;height:88px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;padding:22px;box-shadow:var(--card-shadow)}
.flow-step h3{margin-top:16px;font-size:14.5px;font-weight:900;color:var(--blue)}
.flow-step p{margin-top:6px;font-size:11.5px;color:var(--ink-soft);line-height:1.7}
.flow-arrow{flex:0 0 44px;align-self:flex-start;margin-top:52px;display:flex;align-items:center;justify-content:center;color:#a9c2ec}
.flow-arrow svg{width:38px;height:12px}

/* ===== Cases (改善イメージ) ===== */
.cases{background:var(--bg-softer)}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--card-shadow);transition:transform .25s}
.case-card:hover{transform:translateY(-4px)}
.case-img{background:var(--bg-soft);padding:18px;display:flex;justify-content:center}
.case-img img{border-radius:10px;box-shadow:0 6px 18px rgba(23,58,138,.12);max-height:170px;width:auto}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:15px;font-weight:900;color:var(--blue);margin-bottom:8px}
.case-body p{font-size:12.5px;color:var(--ink);line-height:1.8}
.case-tags{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.case-tag{font-size:11.5px;font-weight:700;border-radius:6px;padding:4px 10px}
.tag-blue{background:#e8f0fe;color:var(--blue)}
.tag-green{background:#e6f7ec;color:#0e9f52}

/* ===== FAQ ===== */
.faq{background:#fff}
.faq-list{max-width:760px;margin:44px auto 0}
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;background:#fff;box-shadow:0 3px 12px rgba(23,58,138,.05);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:none;cursor:pointer;font-family:inherit;font-size:14px;font-weight:700;color:var(--navy);text-align:left}
.faq-q .pm{flex:0 0 26px;height:26px;border-radius:50%;border:1.5px solid var(--blue);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:400;transition:transform .3s,background .3s;line-height:1}
.faq-item.open .pm{transform:rotate(45deg);background:var(--blue);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 22px 20px;font-size:13.5px;color:var(--ink);line-height:1.9}

/* ===== CTA banner ===== */
.cta-banner{background:linear-gradient(115deg,#0d3ba8 0%,#1d5fe0 55%,#3b82f6 100%);position:relative;overflow:hidden;padding:72px 0}
.cta-banner::before,.cta-banner::after{content:"";position:absolute;border-radius:50%;border:1.5px solid rgba(255,255,255,.18)}
.cta-banner::before{width:420px;height:420px;left:-140px;top:-200px}
.cta-banner::after{width:520px;height:520px;right:-180px;bottom:-300px}
.cta-inner{position:relative;display:flex;align-items:center;gap:48px}
.cta-illust{flex:0 0 300px;filter:drop-shadow(0 16px 30px rgba(4,20,64,.35))}
.cta-illust img{border-radius:12px}
.cta-text h2{color:#fff;font-size:clamp(20px,2.6vw,27px);font-weight:900;letter-spacing:.03em}
.cta-text p{color:rgba(255,255,255,.88);margin-top:12px;font-size:14px}
.cta-actions{display:flex;align-items:center;gap:26px;margin-top:28px;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--blue);box-shadow:0 8px 24px rgba(4,20,64,.3)}
.btn-white:hover{background:#eef4ff;transform:translateY(-2px)}
.cta-sub{color:#fff;font-size:13.5px;font-weight:700;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid rgba(255,255,255,.6);padding-bottom:2px}
.cta-sub:hover{opacity:.85}

/* ===== Footer ===== */
.footer{background:#fff;border-top:1px solid var(--line);padding:34px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer-logo img{height:28px;width:auto}
.footer-nav{display:flex;gap:28px;flex-wrap:wrap}
.footer-nav a{font-size:13px;color:var(--ink-soft)}
.footer-nav a:hover{color:var(--blue)}
.copyright{font-size:12px;color:var(--ink-soft)}

/* ===== Reveal on scroll ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{min-height:420px;max-width:560px;margin:0 auto;width:100%}
  .problem-grid{grid-template-columns:repeat(3,1fr)}
  .cando-grid,.service-grid{grid-template-columns:repeat(2,1fr)}
  .reason-grid,.reason-strip,.case-grid{grid-template-columns:1fr}
  .reason-card{max-width:560px;margin:0 auto;width:100%}
  .flow-grid{flex-direction:column;align-items:center;gap:22px}
  .flow-arrow{transform:rotate(90deg);margin:0}
  .cta-inner{flex-direction:column;text-align:center}
  .cta-actions{justify-content:center}
}
@media (max-width:640px){
  .nav{position:fixed;inset:72px 0 auto 0;background:#fff;flex-direction:column;gap:0;padding:8px 0 16px;border-bottom:1px solid var(--line);display:none;box-shadow:0 20px 40px rgba(23,58,138,.12)}
  .nav.open{display:flex}
  .nav a{padding:12px 24px;width:100%}
  .nav .btn{margin:10px 24px 0}
  .menu-toggle{display:block}
  .problem-grid{grid-template-columns:repeat(2,1fr)}
  .cando-grid,.service-grid{grid-template-columns:1fr}
  .hero{padding:48px 0 72px}
  .hero-title-line{white-space:normal}
  section{padding:64px 0}
}