:root{
  --blue:#0068b7;
  --blue2:#00a0e9;
  --blue3:#003d94;
  --dark:#000;
  --text:#000;
  --muted:#64748b;
  --bg:#f5faff;
  --line:#bbbcbc;
  --green:#46b96b;
}

.double-circle-3 {
        background-color: #003d94;
        border: solid 4px #e7f5fd;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        box-shadow:0 0 0 5px #003d94;
}


body{
  font-family:"Yu Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP","メイリオ","Meiryo",sans-serif;
  color:var(--text);
  background:#fff;
  line-height:1.8;
}

img{max-width:100%;display:block}
a{text-decoration:none}

/* 画像単体を中央寄せ */
img.center-img{
  margin-left:auto;
  margin-right:auto;
}
html{
  scroll-behavior:smooth;
}


.container{
  width:min(1120px,92%);
  margin:auto;
}

.section{
  padding:86px 0;
}

.section.bg2{
  background:
    linear-gradient(
      180deg,
      rgba(0,0,0,.78) 0%,
      rgba(0,0,0,.55) 20%,
      rgba(0,0,0,.16) 60%,
      rgba(0,0,0,.03) 70%
    ),
    url("../img/bg2.jpg") center center / cover no-repeat;
  display:flex;
  align-items:center;
  color:#FFF;
}

.section.bg3{
  background:
    linear-gradient(
      180deg,
      rgba(0,0,0,.78) 0%,
      rgba(0,0,0,.55) 20%,
      rgba(0,0,0,.16) 60%,
      rgba(0,0,0,.03) 70%
    ),
    url("../img/nimbo-map.jpg") center center / cover no-repeat;
  display:flex;
  align-items:center;
  color:#FFF;
}

.section.bg{
  background:var(--bg);
}


.section-title{
  font-size:clamp(30px,4vw,52px);
  line-height:1.25;
  color:var(--blue);
  font-weight:900;
  margin-bottom:22px;
}

.section-title2{
  font-size:clamp(30px,4vw,52px);
  line-height:1.25;
  color:var(--white);
  font-weight:900;
  margin-bottom:22px;
}

.section-title.black{
  color:var(--dark);
}
.section-title2{
  color:#fff;
}

.section-title2 bad-list{color:#333;}

.lead{
  font-size:20px;
  font-weight:800;
  color:var(--dark);
  margin-bottom:18px;
}
.lead2{
  font-size:20px;
  font-weight:800;
  color:var(--white);
  margin-bottom:18px;
}


.note{
  font-size:14px;
  color:var(--muted);
}

.center{text-align:center;}

.logoc{text-align:center;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:210px;
  height:56px;
  border-radius:999px;
  font-weight:800;
}

.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  box-shadow:0 12px 28px rgba(0,91,172,.35);
}

.btn-outline{
  color:#fff;
  border:1px solid rgba(255,255,255,.7);
  background:rgba(255,255,255,.07);
}

/* HERO */

.hero{
  min-height:620px;
  background:
    linear-gradient(
      90deg,
      rgba(0,0,0,.78) 0%,
      rgba(0,0,0,.55) 20%,
      rgba(0,0,0,.16) 30%,
      rgba(0,0,0,.03) 40%
    ),
    url("../img/Nimbo_X.webp") center center / cover no-repeat;
  display:flex;
  align-items:center;
}

.hero-content{
  width:min(1120px,92%);
  margin:0 auto;
  padding:90px 0;
}

.hero-copy{
  max-width:620px;
  color:#fff;
}

.hero-label{
  font-size:20px;
  font-weight:800;
  margin-bottom:16px;
}

.hero h1{
  width:min(460px,90%);
  margin-bottom:18px;
  font-size: 40px;
}

.hero-sub{
  font-size:clamp(24px,3vw,38px);
  font-weight:900;
  line-height:1.35;
  margin-bottom:8px;
}

.hero-kana{
  font-size:20px;
  font-weight:700;
  margin-bottom:24px;
}

.hero-text{
  font-size:16px;
  color:rgba(255,255,255,.92);
  max-width:560px;
}

.hero-buttons{
  display:flex;
  gap:18px;
  margin-top:34px;
  flex-wrap:wrap;
}

/* ICONS */

.feature-icons{
  background:#fff;
  padding:34px 0 30px;
  border-bottom:1px solid var(--line);
}

.feature-grid{
  display:grid;
  grid-template-columns:repeat(8,minmax(0,1fr));
  gap:18px;
  align-items:start;
}

.feature-item{
  text-align:center;
  color:var(--blue);
  font-size:16px;
  font-weight:800;
  line-height:1.45;
  word-break:keep-all;
}

.feature-icon{
  width:80px;
  height:80px;
  border-radius:50%;
  background:#edf8ff;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 10px;
  padding:15px;
}

.feature-icon img{
  width:100%;
  height:100%;
  object-fit:contain;
}

/* PARTS */

.grid2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:44px;
  align-items:center;
  align-items: flex-start; 
}

.grid3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.grid4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:11px;
  padding:28px;
  box-shadow:0 14px 36px rgba(0,40,80,.07);
}

.card p{line-height: 23px; color: #000;margin-bottom: 10px;}

.card img{border-radius:11px;}

.card h3{
  color:var(--blue);
  font-size:26px;
  margin-bottom:10px;
  line-height: 30px;
  text-align: center;
}

.image-card{
  overflow:hidden;
}

.image-card img{
  width:100%;border-radius:11px;
}

.video-card{width:100%; border-radius:20px;  overflow:hidden;}

.check-list{
  display:grid;
  gap:12px;
  margin-top:20px;
}

.check-list div{
  background:#e4f3fd;
  border-left:6px solid var(--blue3);
  padding:14px 18px;
  border-radius:6px;
  font-weight:800;
}

.bad-list{
  list-style:none;
}

.bad-list li{
  position:relative;
  padding-left:28px;
  margin-bottom:0px;
  font-weight:900;
}

.bad-list li::before{
  content:"×";
  color:#e84141;
  font-weight:990;
  position:absolute;
  font-weight: bold;
  left:0;
}

.metric{
  text-align:center;
}

.metric-icon{
  height:220px;
  margin:0 auto 14px;
}

.metric h3{
  color:var(--blue);
  font-size:19px;
  line-height:1.4;
}

.step{
  background:#eaf5ff;
  border-radius:24px;
  padding:28px;
  position:relative;
}

.step-num{
  font-size:70px;
  line-height:.9;
  color:var(--blue);
  font-weight:900;
  margin-bottom:16px;
}

.step h3{
  color:var(--blue);
  font-size:22px;
  margin-bottom:12px;
}

.compare-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:end;
}

.route-box{
  background:#fff;
  border:2px solid var(--line);
  border-radius:20px;
  padding:24px;
}

.route-box.good{
  border-color:var(--blue2);
}

.route-number{
  font-size:30px;
  color:var(--blue);
  font-weight:900;
}
.route-number2{
  font-size:25px;
  color:var(--blue);
  font-weight:900;
}

.safety-visual{
  position:relative;
}

.water-note{
  background:#fff;
  border-radius:22px;
  border:1px solid var(--line);
  padding:28px;
  margin-bottom:34px;
}

.parts-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:26px;
}

.part{
  background:#f2f8fd;
  border-radius:14px;
  padding:16px;
  font-weight:800;
  color:var(--blue);
}

.roi-box{
  background:
    linear-gradient(rgba(255,255,255,.88),rgba(255,255,255,.88)),
    url("img/roi-bg.jpg") center/cover no-repeat;
  border-radius:24px;
  padding:42px;
  box-shadow:0 14px 36px rgba(0,40,80,.08);
}

.roi-icons{
  display:grid;
  grid-template-columns:1fr auto 1fr auto 1fr;
  gap:18px;
  align-items:center;
  text-align:center;
  margin-top:30px;
  color:var(--blue);
  font-size:18px;
  font-weight:900;
}

.roi-icons .symbol{
  font-size:42px;
}

.table-wrap{
  overflow-x:auto;
}

.compare-table,
.spec-table{
  width:100%;
  border-collapse:collapse;
  background:#fff;
  border:1px solid var(--line);
}

.compare-table th,
.compare-table td,
.spec-table th,
.spec-table td{
  border:1px solid var(--line);
  padding:14px 16px;
  text-align:center;
  font-size:16px;
}

.compare-table th{
  background:#e8f4ff;
  color:var(--blue);
}

.compare-table th:first-child,
.compare-table td:first-child{
  text-align:left;
  background:#f4f7fa;
  font-weight:800;
}

.spec-table th{
  width:34%;
  background:#f4f7fa;
  text-align:left;
}

.spec-table td{
  text-align:left;
}

.final-hero{
  background:
    linear-gradient(90deg,rgba(0,0,0,.7),rgba(0,0,0,.15)),
    url("../img/Nimbo_X.webp") center/cover no-repeat;
  color:#fff;
  padding:90px 0;
}

.final-hero h2{
  font-size:clamp(44px,7vw,86px);
  line-height:1;
  margin-bottom:14px;
}

.final-hero p{
  max-width:560px;
}

.cta{
  background:linear-gradient(135deg,#003b85,#0077d9);
  color:#fff;
  padding:42px 0;
}

.cta-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:28px;
}

.cta h2{
  font-size:26px;
}

.cta p{
  color:rgba(255,255,255,.9);
}

.cta-buttons{
  display:flex;
  gap:18px;
  flex-wrap:wrap;
}
.section-nav{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:9999;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 24px rgba(0,40,80,.08);
  transform:translateY(-110%);
  transition:.3s ease;
}

.section-nav.is-show{
  transform:translateY(0);
}

.section-nav-inner{
  width:min(1120px,92%);
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:22px;
}

.section-nav a{
  color:var(--dark);
  font-size:14px;
  font-weight:800;
  white-space:nowrap;
}

.section-nav a:hover{
  color:var(--blue);
}

.section-nav .nav-cta{
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  padding:9px 18px;
  border-radius:999px;
}

/* アンカー位置調整 */
section[id]{
  scroll-margin-top:90px;
}

@media(max-width:960px){
  .feature-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid2,.grid3,.grid4,.compare-layout,.parts-grid{grid-template-columns:1fr}
  .roi-icons{grid-template-columns:1fr}
  .symbol{display:none}
  .cta-inner{flex-direction:column;text-align:center}
}

@media(max-width:560px){
  .hero{min-height:auto;background-position:center}
  .hero-content{padding:70px 0}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .btn{width:100%}
  .section{padding:64px 0}
}
@media(max-width:760px){
  .section-nav{
    top:auto;
    bottom:0;
    transform:translateY(110%);
    border-top:1px solid var(--line);
    border-bottom:none;
  }

  .section-nav.is-show{
    transform:translateY(0);
  }

  .section-nav-inner{
    width:100%;
    height:64px;
    justify-content:flex-start;
    gap:10px;
    overflow-x:auto;
    padding:0 12px;
    -webkit-overflow-scrolling:touch;
  }

  .section-nav-inner::-webkit-scrollbar{
    display:none;
  }

  .section-nav a{
    background:#f2f8ff;
    color:var(--blue);
    padding:9px 14px;
    border-radius:999px;
    font-size:13px;
  }

  .section-nav .nav-cta{
    color:#fff;
    background:linear-gradient(135deg,var(--blue),var(--blue2));
  }

  body{
    padding-bottom:74px;
  }

  section[id]{
    scroll-margin-top:20px;
  }
}