:root{
    --green:#00B900; --text:#111; --muted:#f6f7f8; --border:#e7e7e9;
    --shadow:0 6px 20px rgba(17,17,17,.06);
  }
  html{scroll-behavior:smooth}
  body{margin:0;color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans JP",Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";line-height:1.75;background:#fff}
  img{max-width:100%;height:auto}
  .container{width:min(1120px,100%);margin-inline:auto;padding-inline:clamp(16px,4vw,28px)}
  section{padding-block:clamp(48px,7.5vw,84px)}
  .section-muted{background:var(--muted)}
  h2.section-title{font-size:clamp(20px,3vw,28px);margin:0 0 14px}
  .lead{color:#4a4a51}
  :target{scroll-margin-top:84px}
  .skip-link{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}
  .skip-link:focus{left:10px;top:10px;width:auto;height:auto;padding:8px 12px;background:#111;color:#fff;border-radius:6px;z-index:1000}
  
  /* Buttons */
  .btn{appearance:none;border:1px solid var(--green);background:var(--green);color:#fff;padding:12px 18px;border-radius:999px;font-weight:800;text-decoration:none;font-size:14px;line-height:1;display:inline-block;transition:.2s}
  .btn:hover{filter:brightness(.96);transform:translateY(-1px)}
  .btn:focus-visible{outline:3px solid #8ee28e;outline-offset:2px}
  .btn.outline{background:#fff;color:var(--green)}
  .btn.ghost{background:#fff;color:var(--green)}
  
  /* Header / Nav */
  header.site-header{position:sticky;top:0;z-index:50;background:#fff;box-shadow:var(--shadow)}
  .nav{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:16px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}
  .brand a{display:flex;align-items:center;text-decoration:none;color:var(--text)}
  .brand-logo{height:28px;width:auto;display:inline-block}
  .menu{display:flex;align-items:center;gap:24px}
  .menu a{color:#2b2b2f;text-decoration:none;font-size:15px;font-weight:700;opacity:.9}
  .menu a:hover,.menu a:focus-visible{opacity:1;text-decoration:underline;text-underline-offset:4px}
  .cta{display:flex;align-items:center;gap:12px}
  .hamburger{display:none;position:relative;width:40px;height:40px;border:1px solid var(--border);border-radius:10px;background:#fff}
  .hamburger span,.hamburger::before,.hamburger::after{position:absolute;left:8px;right:8px;height:2px;background:#222;content:"";transition:.3s}
  .hamburger span{top:19px}
  .hamburger::before{top:12px}
  .hamburger::after{top:26px}
  .nav.is-open .hamburger span{opacity:0}
  .nav.is-open .hamburger::before{transform:translateY(7px) rotate(45deg)}
  .nav.is-open .hamburger::after{transform:translateY(-7px) rotate(-45deg)}
  .drawer{display:none;position:fixed;inset:70px 0 auto 0;background:#fff;border-top:1px solid var(--border);box-shadow:var(--shadow)}
  .drawer-inner{padding:18px clamp(16px,4vw,28px);display:grid;gap:6px}
  .drawer a{padding:12px;border-radius:10px;text-decoration:none;color:#222;font-weight:700;background:transparent}
  .drawer a:hover{background:var(--muted)}
  @media (max-width:980px){
    .menu{display:none}
    .hamburger{display:inline-block}
    .nav.is-open + .drawer{display:block}
  }
  
  /* Hero */
  .hero{background:linear-gradient(180deg,#fff 0%,#fff 72%,var(--muted) 72%);padding-block:0}
  .hero .wrap{display:grid;grid-template-columns:1.1fr 0.9fr;gap:clamp(16px,4vw,40px);align-items:center;padding-block-start:clamp(8px,2.5vw,36px);padding-block-end:clamp(32px,6vw,80px)}
  .kicker{font-size:12px;letter-spacing:.14em;font-weight:900;text-transform:uppercase;color:#666;margin:0 0 8px}
  .hero h1{font-size:clamp(24px,4.3vw,40px);line-height:1.25;margin:0 0 14px;letter-spacing:.02em}
  .subcopy{font-size:clamp(14px,2vw,18px);color:#4a4a51;margin:0 0 22px}
  .hero-cta{display:flex;gap:12px;flex-wrap:wrap}
  .hero .hero-cta{margin-bottom:6px}
  .hero .btn{background:var(--green);border-color:var(--green);color:#fff}
  .hero .btn.ghost{background:#fff;color:var(--green)}
.hero-media{text-align:right}
.hero-media img{width:min(480px,100%);height:auto;filter:drop-shadow(0 30px 40px rgba(0,0,0,.12))}
  @media (max-width:980px){
    .hero{background:linear-gradient(180deg,#fff 0%,#fff 92%,var(--muted) 92%)}
    .hero .wrap{grid-template-columns:1fr}
    .hero-media{order:1;text-align:center}
    .hero-media img{width:min(420px,90%)}
  }
  @media (max-width:520px){
    .hero .hero-cta{flex-direction:column}
    .hero .btn{width:100%;text-align:center}
    .hero-media img{width:min(360px,86%)}
  }
  
  /* Lists & features */
  .targets{display:grid;gap:8px;margin:16px 0 0;padding-left:18px}
  .targets li{margin-left:8px}
  .feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;padding-left:18px;margin:14px 0 0}
  @media (max-width:700px){.feature-list{grid-template-columns:1fr}}
  
  /* Plans */
  .plan-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .plan{border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:var(--shadow);background:#fff;transition:.2s;display:flex;flex-direction:column}
  .plan:hover{transform:translateY(-2px)}
  .plan h3{margin:0 0 6px;font-size:22px}
  .price{margin:4px 0 10px;font-weight:800}
  .price .sep{opacity:.4;margin:0 6px}
  .plan-list{margin:10px 0;padding-left:18px}
  .note{font-size:12px;color:#666}
  .plan-cta-wrap{margin-top:auto;padding-inline:10px}
  .plan .plan-cta{display:block;text-align:center;width:100%;max-width:100%}
  /* ボタンのはみ出し対策（小数ピクセル丸め/ズームを考慮） */
  .plan-cta-wrap .btn{width:100%}
  @media (max-width:820px){.plan-cards{grid-template-columns:1fr}}
  
  /* Options table */
  .table-wrap{overflow:auto}
  .options-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border)}
  .options-table th,.options-table td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left}
  .options-table th{width:52%;background:#fff}
  
  /* Flow */
  .flow-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;padding-left:0;list-style:none}
  .flow-steps li{border:1px solid var(--border);border-radius:18px;padding:14px;background:#fff;box-shadow:var(--shadow);font-weight:700;display:flex;align-items:center;gap:10px}
  .flow-steps li span{width:28px;height:28px;border-radius:50%;background:var(--green);color:#fff;display:inline-grid;place-items:center;font-size:14px}
  @media (max-width:820px){.flow-steps{grid-template-columns:1fr 1fr}}
  @media (max-width:460px){.flow-steps{grid-template-columns:1fr}}
  
  /* FAQ */
  .faq-list{display:grid;gap:10px}
  .faq-item{border:1px solid var(--border);border-radius:16px;background:#fff;padding:8px 14px}
  .faq-item summary{cursor:pointer;font-weight:800;padding:10px 6px;list-style:none}
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item[open] summary{border-bottom:1px dashed var(--border)}
  .faq-a{padding:10px 6px 14px;color:#404048}
  
  /* CTA final */
  .cta-final{background:var(--muted);text-align:center}
  .cta-final .hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
  
  /* Company & Footer */
  .company-grid dl{display:grid;grid-template-columns:140px 1fr;gap:8px 16px}
  .company-grid dt{color:#666}
  .company-grid dd{margin:0}
  footer{padding:26px 0;border-top:1px solid var(--border);color:#666;font-size:14px}
  footer a{color:#666;text-decoration:none}
  footer a:hover{text-decoration:underline;text-underline-offset:3px}
  
  /* Plans CTA width: make narrower on larger screens, keep full-width on small screens */
  @media (min-width:700px){
    .plan-cta-wrap{ text-align:center }
    .plan .plan-cta{ display:inline-block; width:auto; max-width:none }
    .plan-cta-wrap .btn{ width:auto }
  }
  
  /* Cases (導入事例) */
  #cases .cases-slider-wrap{position:relative}
  #cases .cases-slider{display:flex;gap:12px;overflow:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding:6px 8px 10px}
  #cases .case-card{flex:0 0 auto;min-width:clamp(240px,52%,320px);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);background:#fff;padding:16px;scroll-snap-align:center}
  #cases .case-card h3{margin:0 0 6px;font-size:16px;text-align:center}
  #cases .case-card p{margin:0;color:#404048}
  #cases .cases-nav{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border:1px solid var(--border);border-radius:50%;background:#fff;color:#222;display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow)}
  #cases .cases-nav:hover{filter:brightness(.98)}
  #cases .cases-nav.prev{left:-6px}
  #cases .cases-nav.next{right:-6px}
  @media (min-width:980px){
    #cases .case-card{min-width:360px}
  }
  /* SP tweaks */
  @media (max-width:560px){
    /* 導入事例: SPはスワイプ操作を優先し矢印を非表示 */
    #cases .cases-nav{display:none}
    /* 会社情報: 1カラムに変更 */
    .company-grid dl{grid-template-columns:1fr}
    .company-grid dl{gap:6px 12px}
    .company-grid dt{margin-top:8px}
  }