:root{
  --blue:#0b4f8f;
  --blue-dark:#073a6b;
  --green:#13a36f;
  --green-dark:#075a3f;
  --orange:#ff8a1f;
  --yellow:#ffd234;
  --red:#ff4a3a;
  --ink:#112033;
  --text:#263342;
  --muted:#667085;
  --line:#dce6ef;
  --bg:#f4fbf8;
  --white:#fff;
  --shadow:0 22px 60px rgba(17,32,51,.12);
  --shadow-soft:0 12px 32px rgba(17,32,51,.08);
  --radius:28px;
  --radius-sm:18px;
  --container:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;
  color:var(--text);
  line-height:1.8;
  background:
    radial-gradient(circle at 8% 0%,rgba(19,163,111,.18),transparent 29rem),
    radial-gradient(circle at 93% 8%,rgba(255,138,31,.18),transparent 30rem),
    linear-gradient(180deg,#f5fbff 0%,var(--bg) 42%,#ffffff 100%);
}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
.skip-link{position:absolute;left:-999px;top:8px;z-index:999;padding:10px 14px;border-radius:12px;background:#fff;color:var(--blue-dark);font-weight:900;text-decoration:none;box-shadow:var(--shadow-soft)}
.skip-link:focus{left:8px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);border-bottom:1px solid rgba(220,230,239,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.header-inner{width:min(var(--container),calc(100% - 32px));min-height:78px;margin-inline:auto;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:1000;color:var(--blue-dark);letter-spacing:.01em;white-space:nowrap}
.brand-logo{width:54px;height:54px;object-fit:contain;filter:drop-shadow(0 8px 14px rgba(11,79,143,.16))}
.brand-text{font-size:1.08rem}
.global-nav{display:flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.global-nav a{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:.45rem .72rem;border-radius:999px;text-decoration:none;font-size:.92rem;font-weight:900;color:#253446;transition:.16s ease}
.global-nav a:hover{background:#edf7ff;color:var(--blue-dark);transform:translateY(-1px)}
.global-nav .nav-button{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 10px 22px rgba(19,163,111,.20)}
.global-nav .nav-button:hover{background:linear-gradient(135deg,var(--green-dark),#053f2d);color:#fff}
.global-nav .nav-button-blue{background:linear-gradient(135deg,var(--blue),var(--blue-dark));box-shadow:0 10px 22px rgba(11,79,143,.20)}
.menu-button{display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:16px;background:#fff;cursor:pointer;box-shadow:var(--shadow-soft)}
.menu-button span{display:block;width:20px;height:2px;margin:4px auto;border-radius:999px;background:var(--blue-dark);transition:.16s ease}
.menu-open .menu-button span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-open .menu-button span:nth-child(2){opacity:0}
.menu-open .menu-button span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.hero{position:relative;overflow:hidden;padding:66px 0 56px}
.hero:before{content:"";position:absolute;inset:-120px -120px auto auto;width:420px;height:420px;border-radius:999px;background:rgba(11,79,143,.10);pointer-events:none}
.hero-inner{position:relative;width:min(var(--container),calc(100% - 32px));margin-inline:auto;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:34px;align-items:center}
.hero-copy{padding:46px;border:1px solid rgba(220,230,239,.92);border-radius:36px;background:linear-gradient(135deg,rgba(255,255,255,.94),rgba(239,252,247,.94));box-shadow:var(--shadow);position:relative;overflow:hidden}
.hero-copy:after{content:"";position:absolute;right:-80px;bottom:-80px;width:220px;height:220px;border-radius:999px;background:rgba(255,210,52,.20);pointer-events:none}
.eyebrow,.section-label{margin:0 0 .6rem;color:var(--green-dark);font-weight:1000;letter-spacing:.12em;text-transform:uppercase;font-size:.78rem}
h1,h2,h3,p{overflow-wrap:anywhere}
h1{margin:.1rem 0 1rem;font-size:clamp(2.25rem,4.5vw,4.15rem);line-height:1.1;letter-spacing:-.055em;color:var(--ink)}
h2{margin:.1rem 0 .8rem;font-size:clamp(1.55rem,2.6vw,2.5rem);line-height:1.22;letter-spacing:-.04em;color:var(--ink)}
h3{margin:0;font-size:1.18rem;color:var(--ink);line-height:1.35}
.hero-lead{position:relative;z-index:1;margin:0 0 1.5rem;max-width:680px;font-size:1.08rem;color:#4d5d6d}
.hero-actions,.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.35rem;min-height:50px;padding:.75rem 1.2rem;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);text-decoration:none;font-weight:1000;box-shadow:0 9px 20px rgba(17,32,51,.06);transition:.16s ease;white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 28px rgba(17,32,51,.12)}
.btn-primary{border-color:transparent;background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff;box-shadow:0 14px 28px rgba(19,163,111,.24)}
.btn-secondary{border-color:#c9dbec;color:var(--blue-dark);background:#fff}
.trust-list{position:relative;z-index:1;display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}
.trust-list span{display:inline-flex;align-items:center;min-height:34px;padding:.26rem .72rem;border:1px solid rgba(19,163,111,.18);border-radius:999px;background:#f0fff8;color:#0a5f42;font-size:.86rem;font-weight:900}
.hero-visual{position:relative;min-height:450px;display:grid;place-items:center}
.hero-card{width:min(100%,520px);padding:34px;border:1px solid rgba(220,230,239,.92);border-radius:40px;background:rgba(255,255,255,.90);box-shadow:var(--shadow);transform:rotate(1deg)}
.hero-card img{width:100%;filter:drop-shadow(0 24px 34px rgba(11,79,143,.18))}
.floating-card{position:absolute;max-width:245px;padding:15px 17px;border:1px solid rgba(220,230,239,.96);border-radius:20px;background:rgba(255,255,255,.92);box-shadow:var(--shadow-soft);backdrop-filter:blur(12px)}
.floating-card strong{display:block;color:var(--blue-dark);font-size:1rem;line-height:1.3}
.floating-card span{display:block;color:var(--muted);font-size:.86rem;line-height:1.55}
.floating-card-1{left:0;bottom:42px}.floating-card-2{right:0;top:42px}
.section{padding:70px 0}
.section-inner{width:min(var(--container),calc(100% - 32px));margin-inline:auto}
.two-column{display:grid;grid-template-columns:minmax(0,1fr) 390px;gap:28px;align-items:center}
.section-heading{max-width:820px;margin:0 auto 30px;text-align:center}.section-heading p{margin:.2rem auto 0;color:var(--muted)}
.intro p{font-size:1.02rem;color:#485869}.about-panel,.seller-box,.timeline-item,.service-card,.cta-inner{border:1px solid rgba(220,230,239,.92);background:rgba(255,255,255,.92);box-shadow:var(--shadow-soft);border-radius:var(--radius)}
.about-panel{padding:28px;background:linear-gradient(135deg,#fff,#effbf5)}
.about-panel h3{margin-bottom:14px}.about-panel ul{margin:0;padding:0;list-style:none;display:grid;gap:11px}.about-panel li{position:relative;padding-left:32px;font-weight:800;color:#374659}.about-panel li:before{content:"✓";position:absolute;left:0;top:.12rem;width:22px;height:22px;display:grid;place-items:center;border-radius:999px;background:#e4fff3;color:var(--green-dark);font-weight:1000;font-size:.82rem}
.service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.service-card{position:relative;overflow:hidden;display:flex;min-height:288px;flex-direction:column;padding:25px;text-decoration:none;transition:.18s ease}
.service-card:after{content:"";position:absolute;right:-36px;top:-36px;width:110px;height:110px;border-radius:999px;background:rgba(11,79,143,.08)}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.service-card.active{border-color:rgba(19,163,111,.30)}.service-card-blue{border-color:rgba(11,79,143,.28)!important}
.service-icon{width:58px;height:58px;display:grid;place-items:center;border-radius:20px;background:#f2fbff;font-size:2rem;margin-bottom:18px}.service-card.active .service-icon{background:#effff7}.service-card-blue .service-icon{background:#edf7ff}
.service-card p{color:var(--muted);margin:.65rem 0 auto}.service-card span{display:inline-flex;align-items:center;align-self:flex-start;margin-top:18px;padding:.35rem .78rem;border-radius:999px;background:#f1f5f9;color:var(--muted);font-weight:1000;font-size:.88rem}.service-card.active span{background:linear-gradient(135deg,var(--green),var(--green-dark));color:#fff}.service-card-blue span{background:linear-gradient(135deg,var(--blue),var(--blue-dark))!important;color:#fff!important}
.seller{padding-top:28px}.seller-box{display:grid;grid-template-columns:minmax(0,1fr) 430px;gap:28px;align-items:center;padding:36px;background:linear-gradient(135deg,#f6fffb,#fff 52%,#fff6df)}
.seller-box p{color:#4f5f6e;margin:0}.seller-steps{display:grid;gap:12px}.seller-steps div{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid rgba(220,230,239,.92);border-radius:20px;background:#fff}.seller-steps strong{width:48px;height:48px;display:grid;place-items:center;border-radius:16px;background:var(--blue);color:#fff}.seller-steps span{font-weight:1000;color:var(--ink)}
.timeline{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.timeline-item{padding:26px}.timeline-item span{display:inline-flex;margin-bottom:14px;padding:.28rem .76rem;border-radius:999px;background:#fff2d8;color:#9a5200;font-weight:1000;font-size:.86rem}.timeline-item p{color:var(--muted);margin:.65rem 0 0}
.cta{padding:34px 0 80px}.cta-inner{width:min(var(--container),calc(100% - 32px));margin-inline:auto;text-align:center;padding:48px 28px;background:radial-gradient(circle at 50% 0%,rgba(255,210,52,.22),transparent 24rem),linear-gradient(135deg,#073a6b,#075a3f);color:#fff}.cta-inner .section-label,.cta-inner h2{color:#fff}.cta-inner p{margin:.2rem 0 1.4rem;color:rgba(255,255,255,.84)}.cta-actions{justify-content:center}.cta .btn-secondary{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.32);color:#fff;box-shadow:none}
.site-footer{background:#fff;border-top:1px solid var(--line)}.footer-inner{width:min(var(--container),calc(100% - 32px));margin-inline:auto;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 0}.footer-brand{display:flex;align-items:center;gap:14px}.footer-logo{width:70px;height:70px;object-fit:contain}.footer-brand p{margin:0;font-weight:900;color:#344154}.footer-links{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}.footer-links a{text-decoration:none;color:var(--muted);font-weight:850}.footer-links a:hover{color:var(--blue-dark)}.copyright{margin:0;padding:14px 16px;border-top:1px solid #eef2f6;text-align:center;color:var(--muted);font-size:.9rem}
@media(max-width:980px){
  .hero-inner,.two-column,.seller-box{grid-template-columns:1fr}.hero{padding-top:34px}.hero-visual{min-height:360px}.service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.timeline{grid-template-columns:1fr}.seller-box{padding:28px}.footer-inner{align-items:flex-start;flex-direction:column}.footer-links{justify-content:flex-start}
}
@media(max-width:820px){
  .site-header{position:sticky}.header-inner{width:calc(100% - 24px);min-height:66px}.brand-logo{width:46px;height:46px}.brand-text{font-size:1rem}.menu-button{display:block}.global-nav{position:absolute;left:12px;right:12px;top:74px;display:none;flex-direction:column;align-items:stretch;padding:12px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.96);box-shadow:var(--shadow);backdrop-filter:blur(16px)}.global-nav.is-open{display:flex}.global-nav a{justify-content:flex-start;width:100%;min-height:48px;padding:.65rem .9rem}.global-nav .nav-button{justify-content:center}.hero{padding:24px 0 40px}.hero-inner,.section-inner,.cta-inner{width:calc(100% - 24px)}.hero-copy{padding:28px 22px;border-radius:28px}h1{font-size:clamp(2rem,9vw,3rem)}.hero-actions,.cta-actions{display:grid;grid-template-columns:1fr}.btn{width:100%;white-space:normal;text-align:center}.trust-list span{flex:1;justify-content:center;min-width:135px}.hero-visual{min-height:auto;padding:18px 0 44px}.hero-card{padding:22px;border-radius:30px;transform:none}.floating-card{position:relative;left:auto;right:auto;top:auto;bottom:auto;max-width:none;margin-top:12px}.section{padding:46px 0}.service-grid{grid-template-columns:1fr}.service-card{min-height:auto}.seller-steps strong{width:42px;height:42px}.footer-brand{align-items:flex-start}.footer-logo{width:58px;height:58px}
}
@media(max-width:520px){
  .hero-copy{padding:24px 18px}.section-heading{text-align:left}.about-panel,.timeline-item,.service-card{padding:22px;border-radius:22px}.seller-box{padding:22px;border-radius:24px}.seller-steps div{align-items:flex-start}.cta-inner{padding:34px 20px;border-radius:24px}.footer-links{display:grid;gap:8px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}