:root{
  --bg-0:#060b14;
  --bg-1:#0b1220;
  --bg-2:#101a2d;
  --panel:#131f33;
  --panel-soft:#18263d;
  --text:#ecf3ff;
  --muted:#b9c8de;
  --line:#06c755;
  --accent:#3aa6ff;
  --warn:#f59e0b;
  --danger:#ef4444;
  --ok:#22c55e;
  --category-accent:#3aa6ff;
  --field-bg:#d7deea;
  --field-text:#0f172a;
  --field-border:rgba(20,28,40,.35);
  --border:rgba(231,238,247,.14);
  --shadow-soft:0 14px 34px rgba(2,8,20,.28);
  --shadow-hard:0 22px 54px rgba(2,8,20,.4);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --bg-photo:none;
}

*{box-sizing:border-box}

html,body{
  margin:0;
  padding:0;
  scroll-behavior:smooth;
}

body{
  font-family:"BIZ UDPGothic","Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic","Segoe UI",sans-serif;
  line-height:1.6;
  color:var(--text);
  position:relative;
  overflow-x:hidden;
  background:
    radial-gradient(1200px 520px at 80% -160px,rgba(58,166,255,.24),transparent 58%),
    radial-gradient(960px 460px at -12% 8%,rgba(6,199,85,.12),transparent 56%),
    radial-gradient(760px 300px at 50% 20%,rgba(255,255,255,.05),transparent 70%),
    linear-gradient(180deg,var(--bg-0),var(--bg-1) 44%,var(--bg-2));
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:var(--bg-photo);
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  opacity:.16;
  filter:saturate(1.08) contrast(1.04);
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(transparent 97%,rgba(255,255,255,.035) 98%),
    linear-gradient(90deg,transparent 97%,rgba(255,255,255,.03) 98%);
  background-size:30px 30px,30px 30px;
  opacity:.28;
}

main,.footer{
  position:relative;
  z-index:1;
}

a{
  color:inherit;
  text-decoration:none;
}

.container{
  max-width:1120px;
  margin:0 auto;
  padding:0 16px;
}

.header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(8,12,20,.76);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(12px);
  box-shadow:0 8px 22px rgba(0,0,0,.2);
}

.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
}

.brand__name{
  font-weight:800;
  letter-spacing:.04em;
  font-size:20px;
}

.brand__sub{
  margin-top:2px;
  color:var(--muted);
  font-size:12px;
}

.header__cta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
}

.hero{
  position:relative;
  padding:52px 0 36px;
  border-bottom:1px solid var(--border);
  background:linear-gradient(180deg,rgba(14,24,40,.42),rgba(8,13,21,.14));
}

.hero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(58,166,255,.22) 0%,rgba(58,166,255,0) 70%);
  pointer-events:none;
  z-index:0;
}

.hero > .container{
  position:relative;
  z-index:1;
}

.hero__inner{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:18px;
}

.hero h1{
  margin:0 0 12px;
  font-size:clamp(30px,4.2vw,48px);
  line-height:1.12;
  letter-spacing:.01em;
}

.hero__strong{
  display:inline-block;
  background:linear-gradient(92deg,#eaf4ff 0%,#9ad2ff 50%,#4cb4ff 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.hero p{
  margin:0 0 14px;
  color:var(--muted);
  line-height:1.8;
}

.hero__buttons{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:14px;
}

.notice{
  display:grid;
  gap:6px;
  background:linear-gradient(170deg,rgba(24,36,58,.82),rgba(14,21,34,.72));
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:12px;
  box-shadow:var(--shadow-soft);
}

.notice__strong{
  font-weight:800;
  color:#f5f9ff;
}

.small{
  color:var(--muted);
  font-size:12px;
}

.card{
  background:linear-gradient(165deg,rgba(24,36,58,.94),rgba(12,18,30,.88));
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:18px;
  box-shadow:var(--shadow-hard);
}

.card__title{
  margin:0 0 8px;
  font-size:20px;
}

.card__cta{
  display:grid;
  gap:10px;
}

.checklist{
  margin:0 0 14px;
  padding-left:1.15em;
  color:var(--muted);
  line-height:1.85;
}

.section{
  padding:56px 0;
}

.section--alt{
  background:
    linear-gradient(120deg,rgba(58,166,255,.08),transparent 42%),
    linear-gradient(180deg,rgba(15,22,36,.68),rgba(10,16,28,.76));
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}

.section__title{
  display:inline-block;
  margin:0 0 12px;
  font-size:clamp(22px,3vw,30px);
  line-height:1.24;
  letter-spacing:.01em;
  position:relative;
}

.section__title::after{
  content:"";
  display:block;
  width:64%;
  height:3px;
  margin-top:8px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--accent),transparent);
}

.section__lead{
  margin:0 0 20px;
  color:var(--muted);
}

.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
}

.tile{
  background:linear-gradient(170deg,rgba(23,35,55,.82),rgba(13,20,33,.76));
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  box-shadow:0 10px 20px rgba(0,0,0,.17);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}

.tile:hover{
  transform:translateY(-3px);
  border-color:rgba(58,166,255,.38);
  box-shadow:0 14px 26px rgba(0,0,0,.22);
}

.tile h3{
  margin:0 0 8px;
  font-size:18px;
}

.tile p{
  margin:0;
  color:var(--muted);
}

.stock{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}

.stock__box{
  background:linear-gradient(170deg,rgba(21,33,52,.86),rgba(12,18,30,.78));
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  box-shadow:0 10px 20px rgba(0,0,0,.17);
}

.stock__box h3{
  margin:0 0 8px;
}

.stock__box p{
  margin:0 0 12px;
  color:var(--muted);
}

.info{
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:12px;
}

.info__text{
  background:linear-gradient(170deg,rgba(21,33,52,.86),rgba(12,18,30,.78));
  border:1px solid var(--border);
  border-radius:16px;
  padding:16px;
  box-shadow:0 10px 20px rgba(0,0,0,.17);
}

.dl{
  margin:0;
}

.dl__row{
  display:grid;
  grid-template-columns:92px 1fr;
  gap:10px;
  padding:11px 0;
  border-bottom:1px solid var(--border);
}

.dl__row dt{
  color:var(--muted);
  font-weight:700;
}

.dl__row dd{
  margin:0;
}

.mini-cta{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:14px;
}

.info__map iframe{
  width:100%;
  height:340px;
  border:0;
  border-radius:16px;
}

.contact{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:14px;
  align-items:start;
}

.contact__left{
  background:
    linear-gradient(160deg,rgba(18,24,38,.86),rgba(8,12,19,.9)),
    radial-gradient(280px 140px at 0% 0%,rgba(58,166,255,.16),transparent 72%);
  border:1px solid var(--border);
  border-radius:16px;
  padding:14px;
  box-shadow:var(--shadow-soft);
}

.contact__form{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(160deg,rgba(18,24,38,.92),rgba(8,12,19,.9)),
    radial-gradient(260px 140px at 100% 0,rgba(58,166,255,.16),transparent 72%);
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px;
  box-shadow:var(--shadow-hard);
}

.contact__form::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--category-accent),rgba(255,255,255,.24));
}

.contact__step{
  font-size:12px;
  color:var(--muted);
  background:rgba(6,8,12,.56);
  border:1px solid var(--border);
  border-radius:12px;
  padding:10px 12px;
  margin-bottom:12px;
}

.contact__step strong{
  color:var(--text);
}

.field{
  display:grid;
  gap:6px;
  margin-bottom:12px;
}

.field label{
  font-weight:700;
  font-size:13px;
  letter-spacing:.01em;
}

.field--inline{
  grid-template-columns:1fr 1fr;
  gap:10px;
}

.field--inline > div{
  display:grid;
  gap:6px;
}

.field__hint{
  color:var(--muted);
  font-size:12px;
}

.hidden-field{
  position:absolute !important;
  left:-9999px !important;
  width:1px !important;
  height:1px !important;
  opacity:0 !important;
  pointer-events:none !important;
}

.check-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 10px;
  background:rgba(9,14,22,.62);
  border:1px solid var(--border);
  border-radius:12px;
  padding:10px;
}

.check-grid label{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--text);
}

.check-grid input[type="checkbox"]{
  appearance:auto;
  width:16px;
  height:16px;
  padding:0;
  border:0;
  background:transparent;
  box-shadow:none;
  accent-color:var(--category-accent);
}

.field input[type="checkbox"]{
  accent-color:var(--category-accent);
}

.conditional-group{
  background:rgba(9,14,22,.62);
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px;
  margin-bottom:12px;
  box-shadow:0 8px 16px rgba(0,0,0,.18);
}

.conditional-group[hidden]{display:none !important}

.conditional-group.is-active{
  border-color:var(--category-accent);
  border-color:color-mix(in srgb,var(--category-accent) 56%, #ffffff 18%);
  box-shadow:0 0 0 1px rgba(58,166,255,.28),0 12px 20px rgba(0,0,0,.24);
  box-shadow:0 0 0 1px color-mix(in srgb,var(--category-accent) 42%, transparent),0 12px 20px rgba(0,0,0,.24);
  animation:liftIn .2s ease;
}

.conditional-group__title{
  margin:0 0 8px;
  font-size:14px;
  letter-spacing:.01em;
  color:#f4f7fc;
}

.faq{
  display:grid;
  gap:10px;
}

.faq__item{
  background:linear-gradient(170deg,rgba(23,35,55,.82),rgba(13,20,33,.76));
  border:1px solid var(--border);
  border-radius:14px;
  padding:12px;
}

.faq__item summary{
  cursor:pointer;
  font-weight:700;
}

.faq__item p{
  margin:10px 0 0;
  color:var(--muted);
  line-height:1.75;
}

input,textarea,select{
  border-radius:12px;
  border:1px solid var(--field-border);
  background:var(--field-bg);
  color:var(--field-text);
  padding:10px;
  transition:border-color .2s ease,box-shadow .2s ease,transform .08s ease;
}

input::placeholder,textarea::placeholder{
  color:#4b5563;
}

input:focus,textarea:focus,select:focus{
  outline:none;
  border-color:var(--category-accent);
  border-color:color-mix(in srgb,var(--category-accent) 58%, #1f2937 18%);
  box-shadow:0 0 0 3px rgba(58,166,255,.2);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--category-accent) 22%, transparent);
}

textarea{
  min-height:108px;
}

select{
  appearance:none;
  background-image:
    linear-gradient(45deg,transparent 50%,#4b5563 50%),
    linear-gradient(135deg,#4b5563 50%,transparent 50%);
  background-position:calc(100% - 22px) calc(50% - 3px),calc(100% - 16px) calc(50% - 3px);
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
  padding-right:40px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  border-radius:12px;
  border:1px solid var(--border);
  font-weight:700;
  transition:transform .14s ease,filter .14s ease,box-shadow .2s ease;
}

.btn:hover{
  transform:translateY(-1px);
  filter:brightness(1.05);
}

.btn:active{
  transform:translateY(0);
}

.btn--primary{
  background:linear-gradient(180deg,rgba(58,166,255,.95),rgba(58,166,255,.72));
  border-color:rgba(58,166,255,.35);
}

.btn--ghost{
  background:rgba(18,24,38,.45);
}

.btn--line{
  background:rgba(6,199,85,.95);
  border-color:rgba(6,199,85,.35);
  color:#07210f;
}

.btn--block{
  width:100%;
}

.footer{
  padding:22px 0;
  color:var(--muted);
  background:linear-gradient(180deg,rgba(7,11,18,.2),rgba(7,11,18,.66));
}

.footer__inner{
  border-top:1px solid var(--border);
  padding-top:16px;
}

@keyframes liftIn{
  from{
    opacity:.76;
    transform:translateY(4px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}

@media (max-width:1024px){
  .hero__inner{grid-template-columns:1fr}
  .hero__card{order:-1}
}

@media (max-width:900px){
  .grid,.stock,.info,.contact{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .field--inline{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .header__inner{align-items:flex-start}
}

@media (max-width:600px){
  .section{padding:46px 0}
  .hero{padding:40px 0 30px}
  .brand__name{font-size:18px}
  .brand__sub{font-size:11px}
  .header__cta{width:100%}
  .header__cta .btn{flex:1}
}