/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:'Noto Sans JP',sans-serif;color:#1a2238;background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:0}

:root{
  --navy:#0f2748;
  --navy-2:#1a3a6e;
  --blue:#2e6bd6;
  --blue-light:#e8f1ff;
  --gold:#c9a449;
  --text:#1a2238;
  --text-2:#5a6378;
  --line:#e3e6ee;
  --bg-soft:#f5f7fc;
}

/* ===== SAMPLE BANNER ===== */
.sample-banner{
  background:#fff7d6;border-bottom:1px solid #f0d77a;color:#7a5a00;
  text-align:center;font-size:12px;padding:6px 12px;
}
.sample-banner a{color:#0f2748;font-weight:700;text-decoration:underline}

/* ===== HEADER ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{
  width:42px;height:42px;border-radius:8px;
  background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  color:#fff;font-family:'Barlow',sans-serif;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.5px
}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-en{font-family:'Barlow',sans-serif;font-weight:800;font-size:14px;letter-spacing:1.5px;color:var(--navy)}
.logo-jp{font-size:11px;color:var(--text-2);margin-top:2px;letter-spacing:.5px}
.nav-pc{display:flex;gap:28px;align-items:center}
.nav-pc a{font-size:14px;font-weight:500;color:var(--text);transition:color .2s}
.nav-pc a:hover{color:var(--blue)}
.btn-nav-cta{background:var(--navy);color:#fff!important;padding:10px 20px;border-radius:6px;font-weight:700!important}
.btn-nav-cta:hover{background:var(--blue)!important;color:#fff!important}
.hamburger{display:none;width:32px;height:32px;flex-direction:column;justify-content:center;gap:6px;padding:0}
.hamburger span{display:block;height:2px;background:var(--navy);transition:.3s}
.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.nav-sp{display:none;flex-direction:column;background:#fff;border-top:1px solid var(--line)}
.nav-sp.active{display:flex}
.nav-sp a{padding:16px 24px;border-bottom:1px solid var(--line);font-weight:500}

/* ===== HERO ===== */
.hero{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden;background:var(--navy)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('../images/hero.jpg');
  background-size:cover;background-position:center;
  filter:brightness(.55);
}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(15,39,72,.92) 0%,rgba(15,39,72,.55) 60%,rgba(15,39,72,.3) 100%);
}
.hero-content{position:relative;max-width:1180px;width:100%;margin:0 auto;padding:80px 24px;color:#fff}
.hero-area-tag{
  display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.4);
  padding:6px 16px;border-radius:99px;font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:24px;
  backdrop-filter:blur(4px)
}
.hero-title{font-size:clamp(40px,6vw,72px);font-weight:900;line-height:1.15;margin:0 0 20px;letter-spacing:.02em}
.hero-pro{
  position:relative;color:var(--gold);
}
.hero-pro::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:6px;
  background:var(--gold);opacity:.4;border-radius:3px
}
.hero-tagline{font-size:clamp(16px,2vw,20px);font-weight:500;margin:0 0 40px;opacity:.92}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}

.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--gold);color:#fff;padding:18px 36px;border-radius:8px;
  font-weight:700;font-size:16px;transition:.2s;
  box-shadow:0 6px 20px rgba(201,164,73,.4)
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(201,164,73,.5)}
.btn-primary .arrow{font-size:20px}

.btn-secondary{
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.1);color:#fff;padding:18px 28px;border-radius:8px;
  font-weight:700;font-size:16px;border:1px solid rgba(255,255,255,.4);transition:.2s
}
.btn-secondary:hover{background:rgba(255,255,255,.2)}
.btn-secondary svg{width:20px;height:20px}

/* ===== SECTION COMMON ===== */
section{padding:100px 24px}
.section-head{text-align:center;margin-bottom:60px}
.section-title{font-family:'Barlow',sans-serif;font-weight:800;font-size:48px;letter-spacing:4px;color:var(--navy);margin:0;line-height:1}
.section-sub{font-size:14px;color:var(--text-2);margin:12px 0 0;letter-spacing:2px;font-weight:500}
.section-title::before{
  content:"";display:inline-block;width:32px;height:3px;background:var(--gold);
  vertical-align:middle;margin-right:14px;border-radius:2px;transform:translateY(-6px)
}
.section-title::after{
  content:"";display:inline-block;width:32px;height:3px;background:var(--gold);
  vertical-align:middle;margin-left:14px;border-radius:2px;transform:translateY(-6px)
}

/* ===== STRENGTH ===== */
.strength{background:var(--bg-soft)}
.strength-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.strength-card{
  background:#fff;border-radius:14px;padding:48px 32px;text-align:center;
  box-shadow:0 4px 24px rgba(15,39,72,.06);transition:.3s
}
.strength-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(15,39,72,.12)}
.strength-icon{
  width:72px;height:72px;margin:0 auto 24px;border-radius:50%;
  background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff
}
.strength-icon svg{width:32px;height:32px}
.strength-card h3{font-size:22px;font-weight:700;margin:0 0 16px;color:var(--navy)}
.strength-card p{margin:0;color:var(--text-2);font-size:15px;line-height:1.8}

/* ===== SERVICE ===== */
.service-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:.3s;display:flex;flex-direction:column
}
.service-card:hover{border-color:var(--blue);box-shadow:0 8px 28px rgba(46,107,214,.15);transform:translateY(-4px)}
.service-img{aspect-ratio:16/10;background-size:cover;background-position:center;background-color:#dde3ee}
.service-card h3{font-size:18px;font-weight:700;margin:24px 24px 12px;color:var(--navy)}
.service-card p{margin:0 24px 24px;font-size:14px;color:var(--text-2);line-height:1.7}
.service-card-text{
  background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  color:#fff;justify-content:center;align-items:center;text-align:center;padding:40px
}
.service-card-text h3{color:#fff;margin:0 0 16px;font-size:20px}
.service-card-text p{color:rgba(255,255,255,.85);margin:0 0 20px}
.service-card-link{
  display:inline-block;border:2px solid #fff;padding:10px 24px;border-radius:6px;
  font-weight:700;font-size:14px;transition:.2s
}
.service-card-link:hover{background:#fff;color:var(--navy)}

/* ===== WORKS ===== */
.works{background:var(--bg-soft)}
.works-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work-item{margin:0;border-radius:10px;overflow:hidden;background:#fff;transition:.3s}
.work-item:hover{transform:scale(1.02);box-shadow:0 12px 32px rgba(15,39,72,.15)}
.work-img{aspect-ratio:4/3;background-size:cover;background-position:center;background-color:#dde3ee}
.work-item figcaption{padding:16px;font-size:14px;font-weight:500;color:var(--navy)}

/* ===== PRICE ===== */
.price-grid{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.price-card{
  position:relative;background:#fff;border:2px solid var(--line);border-radius:14px;
  padding:40px 32px;text-align:center;transition:.3s
}
.price-card:hover{border-color:var(--blue);transform:translateY(-4px)}
.price-card-pop{border-color:var(--gold);background:linear-gradient(180deg,#fff 0%,#fffaf0 100%)}
.price-badge{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--gold);color:#fff;padding:4px 16px;border-radius:99px;font-size:12px;font-weight:700;letter-spacing:1px
}
.price-card h3{font-size:18px;color:var(--navy);margin:0 0 20px}
.price-amount{font-family:'Barlow',sans-serif;font-weight:800;font-size:24px;color:var(--navy);margin:0 0 24px}
.price-amount span{font-size:48px;letter-spacing:-1px;margin:0 4px}
.price-amount small{font-size:18px;color:var(--text-2);font-weight:600}
.price-card ul{text-align:left;display:inline-block}
.price-card li{padding:8px 0 8px 28px;position:relative;font-size:14px;color:var(--text-2)}
.price-card li::before{
  content:"";position:absolute;left:0;top:14px;width:18px;height:18px;border-radius:50%;
  background:var(--blue-light);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%232e6bd6' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center
}
.price-note{text-align:center;color:var(--text-2);font-size:13px;margin-top:32px}

/* ===== FLOW ===== */
.flow-list{max-width:880px;margin:0 auto;display:grid;gap:20px}
.flow-list li{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:28px 32px 28px 120px;transition:.3s
}
.flow-list li:hover{border-color:var(--blue);box-shadow:0 6px 20px rgba(15,39,72,.08)}
.flow-num{
  position:absolute;left:32px;top:50%;transform:translateY(-50%);
  font-family:'Barlow',sans-serif;font-weight:800;font-size:48px;
  background:linear-gradient(135deg,var(--navy) 0%,var(--blue) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-2px
}
.flow-list h3{font-size:18px;font-weight:700;color:var(--navy);margin:0 0 6px}
.flow-list p{margin:0;color:var(--text-2);font-size:14px}

/* ===== CONTACT ===== */
.contact{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff}
.contact .section-title{color:#fff}
.contact .section-sub{color:rgba(255,255,255,.7)}
.contact .section-title::before,.contact .section-title::after{background:var(--gold)}
.contact-inner{max-width:1080px;margin:0 auto}
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:32px;align-items:start}
.contact-card{background:#fff;border-radius:14px;padding:40px;color:var(--text)}
.contact-tel{display:flex;gap:24px;align-items:center;transition:.3s}
.contact-tel:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,.2)}
.contact-icon{
  width:64px;height:64px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--gold) 0%,#e6c068 100%);
  display:flex;align-items:center;justify-content:center;color:#fff
}
.contact-icon svg{width:28px;height:28px}
.contact-card-label{font-size:12px;color:var(--text-2);margin:0 0 4px;font-weight:600;letter-spacing:1px}
.contact-card-value{font-family:'Barlow',sans-serif;font-weight:800;font-size:30px;color:var(--navy);margin:0 0 6px;letter-spacing:-.5px}
.contact-card-note{font-size:12px;color:var(--text-2);margin:0}
.contact-form h3{font-size:18px;color:var(--navy);margin:0 0 24px}
.contact-form label{display:block;margin-bottom:18px}
.contact-form label span{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:6px}
.contact-form input,.contact-form textarea{
  width:100%;border:1px solid var(--line);border-radius:8px;padding:12px 14px;
  font:inherit;color:var(--text);transition:.2s;background:#fafbfd
}
.contact-form input:focus,.contact-form textarea:focus{outline:0;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(46,107,214,.1)}
.btn-submit{width:100%;justify-content:center;margin-top:8px}

/* ===== ABOUT ===== */
.about{background:var(--bg-soft);padding:80px 24px}
.about-inner{max-width:880px;margin:0 auto}
.about-title{text-align:center;font-size:28px;font-weight:700;color:var(--navy);margin:0 0 40px}
.about-list{margin:0;border-top:1px solid var(--line)}
.about-list>div{display:grid;grid-template-columns:200px 1fr;border-bottom:1px solid var(--line);padding:18px 0}
.about-list dt{font-weight:700;color:var(--navy);font-size:14px;margin:0}
.about-list dd{margin:0;color:var(--text-2);font-size:14px}

/* ===== FOOTER ===== */
.site-footer{background:#0a1a32;color:#fff;text-align:center;padding:48px 24px}
.footer-logo{font-weight:700;font-size:18px;margin:0 0 12px;letter-spacing:1px}
.footer-copy{font-size:12px;opacity:.6;margin:0 0 8px}
.footer-credit{font-size:12px;opacity:.7;margin:0}
.footer-credit a{color:#fff;text-decoration:underline}

/* ===== RESPONSIVE ===== */
@media (max-width:880px){
  section{padding:64px 20px}
  .section-title{font-size:36px;letter-spacing:3px}
  .nav-pc{display:none}
  .hamburger{display:flex}
  .strength-grid,.service-grid,.works-grid,.price-grid{grid-template-columns:1fr;gap:16px}
  .service-grid,.works-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .contact-card{padding:28px}
  .about-list>div{grid-template-columns:1fr;gap:6px;padding:14px 0}
  .hero-content{padding:60px 20px}
  .flow-list li{padding:64px 24px 24px}
  .flow-num{position:relative;left:auto;top:auto;transform:none;display:block;margin-bottom:8px;font-size:36px}
}
@media (max-width:520px){
  .service-grid,.works-grid{grid-template-columns:1fr}
  .hero-buttons .btn-primary,.hero-buttons .btn-secondary{width:100%;justify-content:center}
}