:root{
  --blue:#1b4f9c;
  --blue-d:#163e7d;
  --blue-l:#2f6bc4;
  --ink:#1f2937;
  --gray:#6b7280;
  --line:#e5e7eb;
  --bg-soft:#f3f6fb;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:112px}
body{
  font-family:"Noto Sans JP",sans-serif;
  color:var(--ink);
  line-height:1.8;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  word-break:auto-phrase;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* Logo */
.logo__en{display:block;font-family:"Montserrat",sans-serif;font-weight:800;font-size:22px;letter-spacing:.5px;color:var(--blue);line-height:1.1}
.logo__jp{display:block;font-size:12px;color:var(--gray);letter-spacing:2px;margin-top:2px}

/* Demo / Portfolio banner */
.demo-banner{position:fixed;top:0;left:0;right:0;z-index:200;height:40px;display:flex;align-items:center;gap:14px;padding:0 20px;background:linear-gradient(90deg,#14233d,#1b3a63);color:#fff;font-size:13px;overflow:hidden;white-space:nowrap}
.demo-banner__tag{flex-shrink:0;background:#f5b301;color:#14233d;font-weight:700;font-size:11px;padding:3px 10px;border-radius:4px;letter-spacing:.5px}
.demo-banner__text{flex:1;overflow:hidden;text-overflow:ellipsis;opacity:.92}
.demo-banner__text strong{color:#ffd66b}
.demo-banner__link{flex-shrink:0;display:inline-flex;align-items:center;gap:6px;color:#fff;font-weight:700;border:1px solid rgba(255,255,255,.4);padding:5px 14px;border-radius:999px;transition:background .2s,border-color .2s}
.demo-banner__link:hover{background:rgba(255,255,255,.15);border-color:#fff}

/* Header */
.header{position:fixed;top:40px;left:0;right:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);box-shadow:0 1px 0 rgba(0,0,0,.05)}
.header__inner{max-width:1240px;margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:32px}
.nav{display:flex;gap:30px;margin-left:auto;font-size:14px;font-weight:500}
.nav a{position:relative;padding:4px 0;color:var(--ink);transition:color .2s}
.nav a:hover{color:var(--blue)}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--blue);transition:width .25s}
.nav a:hover::after{width:100%}
.btn--contact{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:700;transition:background .2s,transform .2s}
.btn--contact:hover{background:var(--blue-d);transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.hamburger span{width:24px;height:2px;background:var(--ink);transition:.3s}

/* Hero */
.hero{position:relative;padding-top:112px;overflow:hidden;background:linear-gradient(160deg,#eaf2fb 0%,#d7e8fa 55%,#c4ddf6 100%)}
.hero__bg{position:absolute;inset:0;background:
  radial-gradient(circle at 80% 10%,rgba(255,255,255,.6),transparent 40%),
  radial-gradient(circle at 15% 90%,rgba(255,255,255,.5),transparent 45%);pointer-events:none}
.hero__photo{
  position:absolute;top:112px;right:0;bottom:0;width:48%;
  background:url("images/hero.webp") center/cover;
  clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);
}
.hero__inner{position:relative;max-width:1120px;margin:0 auto;padding:64px 24px 88px;z-index:2}
.hero__text{max-width:560px}
.hero__eyebrow{color:var(--blue);font-weight:700;font-size:15px;margin-bottom:18px}
.hero__title{font-size:54px;font-weight:900;line-height:1.25;letter-spacing:1px;color:#15294a;margin-bottom:26px}
.hero__lead{color:#334155;font-size:15px;max-width:420px;margin-bottom:40px}
.hero__features{list-style:none;display:flex;gap:34px}
.hero__features li{max-width:130px}
.hero__feat-icon{display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;color:var(--blue);margin-bottom:8px}
.hero__feat-icon svg{width:34px;height:34px}
.hero__features strong{display:block;font-size:14px;color:#15294a;margin-bottom:6px}
.hero__features small{display:block;font-size:11px;color:var(--gray);line-height:1.5}

/* Hero badge */
.hero__badge{position:absolute;right:6%;bottom:64px;z-index:3;width:150px;height:150px;border-radius:50%;background:var(--blue);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:0 12px 30px rgba(27,79,156,.4)}
.hero__badge-top{font-size:11px;line-height:1.5;font-weight:500}
.hero__badge-mid{font-size:11px;margin-top:6px}
.hero__badge-big{font-size:32px;font-weight:900;line-height:1.1}

/* Stats */
.stats{background:var(--blue)}
.stats__inner{max-width:1000px;margin:0 auto;display:flex;padding:26px 24px}
.stat{flex:1;text-align:center;color:#fff;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:10%;height:80%;width:1px;background:rgba(255,255,255,.25)}
.stat__label{display:block;font-size:13px;opacity:.85;margin-bottom:4px}
.stat__num{font-family:"Montserrat",sans-serif;font-size:38px;font-weight:800;line-height:1}
.stat__num small{font-family:"Noto Sans JP";font-size:15px;font-weight:500;margin-left:3px}

/* Section titles */
.sec-eyebrow{text-align:center;color:var(--blue);font-weight:700;font-size:13px;letter-spacing:2px;margin-bottom:8px}
.sec-eyebrow--left{text-align:left}
.sec-title{text-align:center;font-size:30px;font-weight:700;margin-bottom:44px;position:relative;padding-bottom:18px}
.sec-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:46px;height:3px;background:var(--blue);border-radius:2px}
.sec-title--left{text-align:left;margin-bottom:24px}
.sec-title--left::after{left:0;transform:none}
.accent{color:var(--blue)}

/* Strengths */
.strengths{padding:78px 0;background:#fff}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:var(--bg-soft);border-radius:14px;padding:34px 24px;text-align:center;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-6px);box-shadow:0 16px 36px rgba(27,79,156,.14)}
.card__icon{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;color:var(--blue);margin-bottom:18px}
.card__icon svg{width:46px;height:46px}
.card h3{font-size:17px;margin-bottom:12px}
.card p{font-size:13px;color:var(--gray);text-align:left}

/* Service */
.service{padding:78px 0;background:var(--bg-soft)}
.service__grid{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:center}
.service__desc{color:var(--gray);font-size:14px;margin-bottom:24px}
.service__list{list-style:none;margin-bottom:30px}
.service__list li{position:relative;padding:9px 0 9px 30px;border-bottom:1px dashed var(--line);font-size:14px;font-weight:500}
.service__list li::before{content:"";position:absolute;left:4px;top:50%;transform:translateY(-50%);width:14px;height:14px;border:2px solid var(--blue);border-radius:50%}
.service__list li::after{content:"";position:absolute;left:9px;top:50%;transform:translateY(-50%);width:4px;height:4px;background:var(--blue);border-radius:50%}
.btn--primary{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;padding:13px 30px;border-radius:999px;font-size:14px;font-weight:700;transition:background .2s,transform .2s}
.btn--primary:hover{background:var(--blue-d);transform:translateY(-2px)}
.btn__arrow{font-size:18px;line-height:1}
.service__gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:140px;gap:12px;border-radius:8px;overflow:hidden}
.g-item{background-size:cover;background-position:center;border-radius:6px}
.g-1{background-image:url("images/g1.svg")}
.g-2{background-image:url("images/g2.svg")}
.g-3{background-image:url("images/g3.svg")}
.g-4{background-image:url("images/g4.svg")}
.g-5{background-image:url("images/g5.svg")}
.g-6{background-image:url("images/g6.svg")}

/* Works */
.works{padding:78px 0;background:#fff}
.works__head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:30px}
.works__all{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--blue);font-weight:600}
.works__list{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.work__img{height:130px;border-radius:8px;background-size:cover;background-position:center;position:relative;margin-bottom:12px}
.work__tag{position:absolute;left:8px;bottom:8px;background:var(--blue);color:#fff;font-size:10px;padding:3px 9px;border-radius:4px;font-weight:500}
.work h3{font-size:13px;font-weight:500}
.w-1{background-image:url("images/w1.svg")}
.w-2{background-image:url("images/w2.svg")}
.w-3{background-image:url("images/w3.svg")}
.w-4{background-image:url("images/w4.svg")}
.w-5{background-image:url("images/w5.svg")}
.works__dots{display:flex;justify-content:center;gap:8px;margin-top:28px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--line)}
.dot.active{background:var(--blue)}

/* Company */
.company{background:var(--bg-soft)}
.company__grid{display:grid;grid-template-columns:1fr 1fr}
.company__info{padding:78px 56px 78px max(24px,calc((100vw - 1120px)/2 + 24px))}
.company__desc{color:var(--gray);font-size:14px;margin-bottom:24px}
.company__table{margin-bottom:30px}
.company__table div{display:flex;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.company__table dt{width:110px;color:var(--gray);flex-shrink:0}
.company__table dd{font-weight:500}
.company__cta{background:linear-gradient(150deg,var(--blue) 0%,var(--blue-d) 100%);color:#fff;padding:78px 56px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.cta__small{font-size:13px;opacity:.9;margin-bottom:10px}
.cta__head{font-size:24px;font-weight:700;margin-bottom:18px}
.cta__tel{display:inline-flex;align-items:center;gap:12px;font-family:"Montserrat",sans-serif;font-size:42px;font-weight:800;letter-spacing:1px}
.cta__tel svg{width:32px;height:32px}
.cta__hours{font-size:13px;opacity:.9;margin:10px 0 26px}
.cta__form{display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--blue);font-weight:700;font-size:15px;padding:16px 36px;border-radius:999px;white-space:nowrap;max-width:100%;transition:transform .2s,box-shadow .2s}
.cta__form svg{width:20px;height:20px;flex-shrink:0}
.btn--contact svg{flex-shrink:0}
.cta__form:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.2)}

/* Footer */
.footer{background:#14233d;color:#fff;padding:44px 0 24px}
.footer__inner{max-width:1120px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:32px;flex-wrap:wrap}
.logo--footer .logo__en{color:#fff}
.logo--footer .logo__jp{color:rgba(255,255,255,.7)}
.footer__nav{display:flex;gap:20px;margin-left:auto;font-size:13px;flex-wrap:wrap}
.footer__nav a{opacity:.85;transition:opacity .2s}
.footer__nav a:hover{opacity:1}
.footer__sns{display:inline-flex;width:40px;height:40px;border:1px solid rgba(255,255,255,.3);border-radius:8px;align-items:center;justify-content:center;transition:background .2s}
.footer__sns:hover{background:rgba(255,255,255,.12)}
.footer__sns svg{width:20px;height:20px}
.footer__copy{text-align:center;font-size:11px;opacity:.5;margin-top:32px}

/* Responsive */
@media(max-width:900px){
  .demo-banner__text{display:none}
  .demo-banner{justify-content:space-between;gap:8px;font-size:12px}
  .demo-banner__link{padding:5px 12px;font-size:12px}
  .nav,.btn--contact{display:none}
  .hamburger{display:flex;margin-left:auto}
  /* モバイル: ヒーロー写真を全幅バナーとしてテキストの下に表示 */
  .hero{display:flex;flex-direction:column}
  .hero__inner{order:1;padding-bottom:32px}
  .hero__photo{
    display:block;order:2;
    position:relative;top:auto;right:auto;bottom:auto;
    width:100%;height:240px;clip-path:none;
  }
  .hero__title{font-size:38px}
  .hero__features{flex-wrap:wrap;gap:20px}
  .hero__badge{right:20px;bottom:20px;width:104px;height:104px}
  .hero__badge-big{font-size:24px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .service__grid{grid-template-columns:1fr;gap:36px}
  .works__list{grid-template-columns:repeat(2,1fr)}
  .company__grid{grid-template-columns:1fr}
  .company__info{padding:56px 24px}
  .company__cta{padding:56px 24px}
  .cta__tel{font-size:32px}
  /* Mobile nav drawer */
  .nav.open{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:#fff;padding:16px 24px;gap:8px;box-shadow:0 12px 24px rgba(0,0,0,.08)}
}
@media(max-width:520px){
  .cards{grid-template-columns:1fr}
  .works__list{grid-template-columns:1fr}
  .hero__title{font-size:32px}
  .stat__num{font-size:28px}
}