:root{
  --navy:#092a52; --navy2:#053b70; --blue:#1188c9; --cyan:#16b9cc;
  --green:#28b946; --light:#f4faff; --text:#142033; --muted:#5f6f84;
  --line:#dce8f3; --shadow:0 16px 40px rgba(9,42,82,.12);
  --radius:20px; --container:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",YuGothic,Meiryo,sans-serif;color:var(--text);background:#fff;line-height:1.75}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(var(--container),calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.93);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{height:72px;display:flex;align-items:center;gap:24px}
.brand img{width:188px;height:auto}
.nav{margin-left:auto;display:flex;gap:26px;font-weight:700;font-size:14px;color:var(--navy)}
.header-cta{display:flex;gap:10px}
.menu-btn{display:none;margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px 12px;font-size:20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:999px;font-weight:800;letter-spacing:.02em;transition:.2s;white-space:nowrap}
.btn:hover{transform:translateY(-1px);filter:brightness(1.03)}
.btn-line{background:linear-gradient(135deg,#29bf49,#12a93d);color:#fff;box-shadow:0 10px 25px rgba(40,185,70,.25)}
.btn-line::before{content:"";width:22px;height:22px;background:#fff;border-radius:50%;display:inline-block;mask: radial-gradient(circle at 50% 50%,#000 0 55%,transparent 57%)}
.btn-ghost{border:1px solid var(--navy);color:var(--navy);background:#fff}
.btn-light{background:#fff;color:var(--navy);box-shadow:0 10px 25px rgba(0,0,0,.08)}
.btn-small{padding:10px 18px;font-size:13px}
.btn-large{padding:16px 30px;font-size:16px;min-width:280px}
.hero{background:
  radial-gradient(circle at 10% 20%,rgba(22,185,204,.26),transparent 30%),
  linear-gradient(135deg,#061f41 0%,#073764 58%,#03172f 100%);color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;min-height:640px;padding:56px 0}
.eyebrow{display:inline-flex;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);padding:4px 14px;border-radius:999px;font-weight:800;color:#9df2ff}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5.2vw,68px);line-height:1.15;margin:18px 0;font-weight:900;letter-spacing:.02em}
.lead{font-size:clamp(24px,3vw,38px);font-weight:900;line-height:1.35;margin-bottom:18px}
.lead span,.solution h2 span{color:#4be6f4}
.sublead{color:#d9eefb;font-weight:600;max-width:700px}
.hero-points{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0}
.hero-points div{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);border-radius:16px;padding:13px;text-align:center}
.hero-points strong,.hero-points small{display:block}
.hero-points small{color:#d9eefb;font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:24px}
.hero-visual{position:relative}
.hero-visual img{border-radius:28px;box-shadow:0 30px 70px rgba(0,0,0,.32);aspect-ratio:4/3;object-fit:cover}
.gift-badge{position:absolute;right:-16px;bottom:24px;width:150px;height:150px;border-radius:50%;background:#f7d070;color:#211604;display:flex;align-items:center;justify-content:center;text-align:center;font-weight:800;box-shadow:0 20px 35px rgba(0,0,0,.25);border:5px solid #fff1bc;font-size:14px;line-height:1.5}
.section{padding:70px 0}
.section:nth-of-type(even){background:linear-gradient(180deg,#f8fcff,#edf7ff)}
h2{font-size:clamp(28px,3.5vw,44px);text-align:center;line-height:1.35;color:var(--navy);margin-bottom:28px;font-weight:900}
.center{text-align:center;color:var(--muted);font-weight:700}
.wide-visual{width:100%;border-radius:22px;box-shadow:var(--shadow);background:#fff}
.concern-text-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:16px}
.concern-text-grid p,.reason-text-grid p{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;font-weight:700;font-size:14px;text-align:center;box-shadow:0 6px 20px rgba(9,42,82,.06)}
.split{display:grid;grid-template-columns:1fr .9fr;gap:48px;align-items:center}
.solution h2{text-align:left}
.solution h2 span{color:#0fb6c7}
.solution p{font-weight:700;color:#415267}
.solution img{border-radius:24px;box-shadow:var(--shadow)}
.process{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
.process div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center;font-weight:900;color:var(--navy);box-shadow:0 8px 24px rgba(9,42,82,.08)}
.reason-text-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:18px}
.reason-text-grid p{text-align:left}
.reason-text-grid strong{color:var(--navy);display:block;margin-bottom:8px}
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:28px}
.card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}
.card img{height:170px;width:100%;object-fit:cover}
.card h3{padding:18px 18px 4px;margin:0;color:var(--navy);text-align:center}
.card p{padding:0 18px 22px;margin:0;color:#4f6176;font-weight:700;font-size:14px;text-align:center}
.price-grid{display:grid;grid-template-columns:1.05fr repeat(3,1fr) 1.05fr;gap:14px;align-items:stretch;margin-top:28px}
.price-card,.campaign{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;text-align:center;box-shadow:0 10px 30px rgba(9,42,82,.07)}
.price-card.free{border:2px solid #15b5c7}
.plan{font-weight:900;color:var(--navy);margin-bottom:6px}
.price-card small{display:block;color:var(--muted);font-weight:800;min-height:54px}
.price-card strong{display:block;font-size:44px;color:var(--navy);line-height:1.1;margin:10px 0}
.price-card em{font-style:normal;color:var(--muted);font-weight:700}
.campaign{border-color:#ffae36;background:#fffaf1;text-align:left}
.campaign p{font-weight:900;color:#f28a00}
.campaign li{margin:8px 0;font-weight:800;color:#cc6f00}
.flow-list{list-style:none;padding:0;margin:34px 0 0;display:grid;grid-template-columns:repeat(7,1fr);gap:12px}
.flow-list li{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 14px;text-align:center;font-weight:800;color:var(--navy);box-shadow:0 10px 30px rgba(9,42,82,.07)}
.flow-list span{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:50%;margin:0 auto 10px;background:linear-gradient(135deg,#e8f8ff,#fff);color:#12a8c8;font-weight:900}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(9,42,82,.06)}
summary{cursor:pointer;font-weight:900;color:var(--navy)}
details p{margin:12px 0 0;color:#53657a}
.cta-section{padding:76px 0;background:linear-gradient(135deg,#06305f,#071d3a);color:#fff}
.cta-section h2{text-align:left;color:#fff}
.cta-section p{color:#d8ebf8;font-weight:700}
.cta-grid{display:grid;grid-template-columns:1.2fr .55fr;gap:40px;align-items:center}
.cta-grid img{border-radius:26px;box-shadow:0 24px 60px rgba(0,0,0,.28)}
.footer{background:#06172c;color:#d7e6f3;padding:38px 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:28px}
.footer a{display:block;margin-bottom:8px}
.footer strong{font-size:18px;color:#fff}
.footer small{color:#aebfd0}
@media (max-width:980px){
  .nav,.header-cta{display:none}.menu-btn{display:block}.header-inner{height:64px}.brand img{width:170px}
  .nav.open,.header-cta.open{display:flex;position:absolute;left:20px;right:20px;top:70px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:18px;padding:20px;flex-direction:column;color:var(--navy)}
  .header-cta.open{top:310px}
  .hero-grid,.split,.cta-grid{grid-template-columns:1fr}
  .hero-grid{padding:38px 0}
  .hero-points{grid-template-columns:repeat(2,1fr)}
  .concern-text-grid{grid-template-columns:repeat(2,1fr)}
  .reason-text-grid,.cards-4,.price-grid,.flow-list,.faq-grid,.footer-grid{grid-template-columns:1fr}
  .process{grid-template-columns:repeat(2,1fr)}
  .gift-badge{width:118px;height:118px;font-size:12px;right:8px}
}
@media (max-width:560px){
  .container{width:min(100% - 28px,var(--container))}
  .section{padding:50px 0}
  .btn-large{width:100%;min-width:0}
  .hero-points,.process,.concern-text-grid{grid-template-columns:1fr}
  h1{font-size:36px}
  .lead{font-size:24px}
  .card img{height:190px}
}