:root{
  --blue-950:#0b1f47;
  --blue-900:#12316c;
  --blue-800:#16458f;
  --blue-700:#1267c9;
  --blue-600:#1487ea;
  --blue-500:#1aa7ff;
  --sky-300:#82d8ff;
  --sky-200:#bceeff;
  --sky-100:#eaf9ff;
  --white:#ffffff;
  --ink:#16264a;
  --muted:#5c6f8f;
  --line:#d8ecfb;
  --green:#12b942;
  --shadow:0 18px 50px rgba(31,112,180,.18);
  --shadow-soft:0 10px 30px rgba(31,112,180,.12);
  --radius:24px;
  --radius-sm:14px;
  --max:1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",YuGothic,"Noto Sans JP",Meiryo,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(circle at 15% 3%, rgba(124,219,255,.44), transparent 26rem),
    linear-gradient(180deg,#f1fbff 0%, #fff 30%, #eef9ff 100%);
  letter-spacing:.02em;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.layout{width:min(var(--max), calc(100% - 48px)); margin-inline:auto}
.narrow{width:min(940px, calc(100% - 48px))}
.sp-only{display:none}

.site-shell{overflow:hidden; position:relative}
.site-shell::before,
.site-shell::after{
  content:"";
  position:fixed;
  pointer-events:none;
  z-index:-1;
  filter:blur(2px);
}
.site-shell::before{
  width:34rem;height:34rem;border-radius:999px;
  left:-18rem;top:10rem;
  background:rgba(114,215,255,.22);
}
.site-shell::after{
  width:38rem;height:38rem;border-radius:999px;
  right:-22rem;bottom:8rem;
  background:rgba(18,135,234,.14);
}

.site-header{
  position:fixed;
  top:16px;left:50%;transform:translateX(-50%);
  width:min(1180px, calc(100% - 28px));
  z-index:30;
  display:flex;align-items:center;gap:20px;justify-content:space-between;
  padding:12px 14px 12px 18px;
  border:1px solid rgba(255,255,255,.72);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-radius:999px;
  box-shadow:0 12px 34px rgba(24,92,160,.12);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--blue-900);white-space:nowrap}
.brand-mark{
  width:30px;height:30px;display:grid;place-items:center;
  border-radius:10px;
  color:#fff;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  box-shadow:0 8px 18px rgba(18,135,234,.25);
  font-weight:900;
}
.global-nav{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:700;color:#31506f}
.global-nav a{transition:.2s}
.global-nav a:hover{color:var(--blue-700)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 16px;border-radius:999px;
  color:#fff;font-weight:800;font-size:14px;
  background:linear-gradient(135deg,#17c653,var(--green));
  box-shadow:0 10px 24px rgba(18,185,66,.22);
}

.hero{
  position:relative;
  min-height:760px;
  padding:120px 0 70px;
  background:
    linear-gradient(180deg,rgba(236,250,255,.92),rgba(255,255,255,.88) 70%,rgba(255,255,255,1)),
    radial-gradient(circle at 85% 18%, rgba(36,161,255,.18), transparent 34rem);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(255,255,255,.98) 0%,rgba(255,255,255,.84) 38%,rgba(255,255,255,.15) 72%,rgba(255,255,255,.6) 100%),
    radial-gradient(circle at 20% 12%, rgba(255,255,255,.9), transparent 24rem);
  z-index:1;
}
.hero-bg{
  position:absolute;inset:0;
  background:
    url("assets/hero-skyblue.png") right 4% top 52px/64% auto no-repeat;
  z-index:0;
  opacity:.98;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 0%,rgba(255,255,255,.72) 85%,#fff 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 48%;align-items:center;gap:28px}
.hero-copy{max-width:610px;padding-top:20px}
.eyebrow{font-size:22px;font-weight:800;color:var(--blue-900);margin:0 0 8px;letter-spacing:.08em}
.hero h1{
  font-size:clamp(42px,6vw,74px);
  line-height:1.08;
  margin:0 0 12px;
  color:var(--blue-900);
  letter-spacing:.03em;
}
.hero h1::first-letter{color:var(--blue-700)}
.program-label{
  display:inline-block;margin:0 0 10px;padding:8px 18px;
  color:#fff;font-weight:900;letter-spacing:.11em;
  background:linear-gradient(90deg,var(--blue-600),#10cc9e);
  border-radius:999px;
  box-shadow:0 8px 24px rgba(18,135,234,.2);
}
.hero h2{
  font-size:clamp(40px,5.5vw,68px);
  line-height:1.04;margin:0 0 18px;
  color:#10224f;letter-spacing:.08em;
}
.lead{font-size:17px;line-height:2;color:#273b60;margin:0 0 22px;font-weight:650}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 24px}
.badges span{
  padding:9px 14px;border-radius:999px;
  border:1px solid rgba(20,135,234,.28);
  background:rgba(255,255,255,.78);
  color:var(--blue-800);font-weight:800;font-size:13px;
  box-shadow:0 6px 20px rgba(31,112,180,.09);
}
.hero-actions{display:grid;grid-template-columns:auto 1fr 1fr;gap:14px;align-items:stretch;max-width:760px}
.price-mini{
  min-width:230px;border-radius:18px;border:1px solid rgba(20,135,234,.25);
  background:rgba(255,255,255,.78);box-shadow:var(--shadow-soft);
  padding:14px 18px;display:flex;align-items:baseline;gap:10px;
}
.price-mini span{font-weight:800;color:var(--blue-800)}
.price-mini strong{font-size:46px;line-height:1;color:var(--blue-950);letter-spacing:.03em}
.price-mini em{font-size:17px;font-style:normal;margin-left:2px}
.price-mini small{font-weight:800;color:#40587c}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  min-height:62px;padding:0 26px;border-radius:16px;
  font-weight:900;letter-spacing:.04em;transition:.2s ease;
  box-shadow:var(--shadow-soft);
  position:relative;overflow:hidden;
}
.btn::after{content:"›";font-size:26px;line-height:1;margin-top:-2px}
.btn-primary{color:#fff;background:linear-gradient(135deg,#12a9ff,#0871e8)}
.btn-secondary{color:var(--blue-900);background:rgba(255,255,255,.82);border:1px solid rgba(18,103,201,.24)}
.btn-line{color:#fff;background:linear-gradient(135deg,#18cb55,#0aaf3b)}
.btn:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(24,92,160,.20)}
.hero-note{display:flex;align-items:center;gap:8px;margin:16px 0 0;color:var(--blue-800);font-weight:800}
.hero-note span{width:22px;height:22px;border-radius:999px;display:grid;place-items:center;color:#fff;background:var(--blue-600);font-size:13px}
.hero-visual{display:none}

.section{padding:70px 0;position:relative}
.section:nth-of-type(odd){background:rgba(255,255,255,.58)}
.section-heading{display:flex;align-items:center;justify-content:center;gap:18px;margin-bottom:32px;text-align:center}
.section-heading p{margin:0;font-weight:900;font-size:clamp(24px,3.4vw,36px);color:var(--blue-900);letter-spacing:.1em}
.section-heading .line{display:block;width:min(120px,16vw);height:1px;background:linear-gradient(90deg,transparent,var(--blue-500),transparent)}
.cards{display:grid;gap:22px}
.cards.four{grid-template-columns:repeat(4,1fr)}
.card{
  background:rgba(255,255,255,.86);
  border:1px solid rgba(54,154,230,.16);
  border-radius:var(--radius-sm);
  box-shadow:var(--shadow-soft);
  padding:28px 24px;
}
.icon-card{text-align:center;min-height:214px}
.icon,.feature-icon{
  width:62px;height:62px;margin:0 auto 18px;
  display:grid;place-items:center;border-radius:18px;
  color:var(--blue-700);font-weight:900;font-size:26px;
  border:1px solid rgba(20,135,234,.22);
  background:linear-gradient(180deg,#fff,var(--sky-100));
}
.icon-card h3,.feature-card h3{margin:0 0 12px;color:var(--blue-900);font-size:19px;line-height:1.55;letter-spacing:.04em}
.icon-card p,.feature-card p{margin:0;color:var(--muted);line-height:1.8;font-weight:650;font-size:14px}
.center-note{text-align:center;margin:30px 0 0;color:#29456d;font-weight:800;line-height:1.9}
.program{background:linear-gradient(180deg,#f4fbff 0%,#fff 100%)}
.feature-card{text-align:center;border-color:rgba(20,135,234,.19)}
.feature-icon{font-size:28px;color:#fff;background:linear-gradient(135deg,var(--blue-500),var(--blue-700));box-shadow:0 14px 30px rgba(18,135,234,.18)}

.comparison{background:linear-gradient(180deg,#fff,#f3fbff)}
.compare-box{
  display:grid;grid-template-columns:1fr auto 1fr;gap:22px;align-items:center;
  padding:24px;border-radius:28px;background:rgba(255,255,255,.65);
  border:1px solid rgba(54,154,230,.16);box-shadow:var(--shadow-soft);
}
.compare-card{border-radius:22px;padding:34px 36px;min-height:250px}
.compare-card h3{text-align:center;margin:0 0 22px;font-size:25px;letter-spacing:.08em}
.compare-card ul{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.compare-card li{position:relative;padding-left:34px;font-weight:850;color:#263d62;line-height:1.6}
.compare-card li::before{
  content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:999px;
  display:grid;place-items:center;font-size:13px;color:#fff;background:var(--blue-600);
}
.compare-card.white{background:#fff;border:1px solid rgba(54,154,230,.16)}
.compare-card.blue{background:linear-gradient(135deg,var(--blue-700),#08b8ff);color:#fff;box-shadow:0 18px 40px rgba(18,135,234,.28)}
.compare-card.blue h3,.compare-card.blue li{color:#fff}
.compare-card.blue li::before{background:#fff;color:var(--blue-700)}
.vs{width:58px;height:58px;border-radius:999px;background:var(--blue-950);color:#fff;font-weight:900;display:grid;place-items:center;box-shadow:0 14px 30px rgba(11,31,71,.25)}

.schedule{background:linear-gradient(180deg,#eef9ff,#fff)}
.timeline{display:grid;grid-template-columns:repeat(3,1fr) 210px;gap:22px;align-items:stretch}
.step-card,.time-card{
  position:relative;border-radius:20px;background:rgba(255,255,255,.9);
  border:1px solid rgba(54,154,230,.18);padding:26px 24px;box-shadow:var(--shadow-soft);
}
.step-card:not(:nth-child(3))::after{
  content:"›";position:absolute;right:-21px;top:50%;transform:translateY(-50%);
  font-size:38px;font-weight:900;color:var(--blue-500);z-index:2;
}
.step-num{
  width:38px;height:38px;border-radius:999px;background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;font-weight:900;display:grid;place-items:center;margin-bottom:14px;
}
.step-card h3{margin:0 0 14px;color:var(--blue-900);font-size:20px}
.step-card p{margin:0;color:var(--muted);line-height:1.8;font-weight:650}
.step-icon{display:block;text-align:right;color:var(--blue-500);font-size:42px;margin-top:18px;font-weight:900}
.time-card{display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;text-align:center;background:linear-gradient(160deg,var(--blue-600),var(--blue-800));border:0;box-shadow:0 20px 45px rgba(18,135,234,.26)}
.time-card p{margin:0 0 10px;font-weight:900;letter-spacing:.08em}
.time-card strong{font-size:64px;line-height:1}
.time-card span{font-size:18px;font-weight:900;margin-top:-4px}
.time-card small{font-size:21px;font-weight:900;margin-top:18px}

.price{background:#fff}
.price-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:26px;
  border-radius:30px;padding:28px;
  background:linear-gradient(135deg,rgba(255,255,255,.94),rgba(236,250,255,.96));
  border:1px solid rgba(54,154,230,.18);box-shadow:var(--shadow);
}
.price-main{border-radius:24px;padding:40px 42px;background:#fff;border:1px solid rgba(54,154,230,.14)}
.price-main p{margin:0 0 8px;color:var(--blue-700);font-weight:900;letter-spacing:.08em}
.price-main h3{margin:0 0 26px;font-size:38px;color:var(--blue-950);letter-spacing:.08em}
.price-large{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.price-large span{font-weight:900;color:var(--blue-900)}
.price-large strong{font-size:72px;line-height:1;color:var(--blue-600);letter-spacing:.03em}
.price-large em{font-style:normal;font-weight:900;color:#243b61}
.price-details{padding:36px 28px}
.price-details ul{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:15px}
.price-details li{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:15px;border-bottom:1px solid rgba(54,154,230,.16)}
.price-details span{color:var(--muted);font-weight:800}
.price-details strong{color:var(--blue-900);font-size:18px}
.price-details p{margin:20px 0 0;color:var(--muted);font-weight:700;line-height:1.7}

.faq{background:linear-gradient(180deg,#f4fbff,#fff)}
.faq-list{display:grid;gap:12px}
details{
  background:rgba(255,255,255,.92);border:1px solid rgba(54,154,230,.16);border-radius:16px;
  box-shadow:0 8px 24px rgba(31,112,180,.08);overflow:hidden;
}
summary{list-style:none;cursor:pointer;padding:18px 24px;font-weight:900;color:var(--blue-900);display:flex;align-items:center;gap:14px;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"⌄";position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--blue-700);font-size:20px}
details[open] summary::after{content:"⌃"}
summary span{width:34px;height:34px;border-radius:999px;display:grid;place-items:center;background:var(--blue-600);color:#fff;font-weight:900;flex:0 0 auto}
details p{margin:0;padding:0 24px 20px 72px;color:var(--muted);line-height:1.8;font-weight:650}

.final-cta{
  padding:100px 0 70px;text-align:center;position:relative;
  background:
    linear-gradient(180deg,rgba(255,255,255,.35),rgba(255,255,255,.96)),
    radial-gradient(circle at 50% 35%, rgba(130,216,255,.56), transparent 30rem),
    linear-gradient(180deg,#eefaff,#dff6ff);
}
.final-cta::before{
  content:"";position:absolute;inset:0;opacity:.38;
  background:
    radial-gradient(circle at 12% 26%, #78d6ff 0 2px, transparent 3px),
    radial-gradient(circle at 82% 18%, #78d6ff 0 2px, transparent 3px),
    radial-gradient(circle at 90% 78%, #78d6ff 0 2px, transparent 3px);
  background-size:120px 120px, 160px 160px, 130px 130px;
}
.final-cta .layout{position:relative;z-index:1}
.final-cta h2{margin:0 0 16px;font-size:clamp(48px,7vw,92px);font-family:Georgia,"Times New Roman",serif;font-weight:500;color:var(--blue-700);letter-spacing:.08em}
.final-cta p{margin:0 auto 34px;max-width:760px;color:#2d4a70;font-weight:800;line-height:2}
.cta-row{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin-bottom:34px}
.btn.large{min-width:330px;min-height:72px;font-size:18px;border-radius:18px}
.support-strip{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;max-width:920px;margin:0 auto}
.support-strip span{min-width:310px;display:inline-flex;align-items:center;justify-content:center;padding:18px 24px;background:#fff;border:1px solid rgba(54,154,230,.16);border-radius:16px;box-shadow:var(--shadow-soft);font-weight:900;color:var(--blue-900)}
.support-strip span::before{content:"✓";width:28px;height:28px;margin-right:10px;border-radius:999px;color:#fff;background:var(--blue-600);display:grid;place-items:center;font-size:13px}
.site-footer{padding:26px 24px;background:#e9f8ff;text-align:center;color:#4c6688;font-weight:800}
.site-footer p{margin:0}

@media (max-width: 980px){
  .global-nav{display:none}
  .site-header{top:10px}
  .hero{padding-top:100px;min-height:auto}
  .hero::before{background:linear-gradient(180deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.78) 44%,#fff 100%)}
  .hero-bg{position:relative;inset:auto;height:360px;margin-top:20px;background:url("assets/hero-skyblue.png") center/cover no-repeat;border-radius:28px;box-shadow:var(--shadow);width:min(100% - 32px,760px);margin-left:auto;margin-right:auto;z-index:2}
  .hero-inner{grid-template-columns:1fr;gap:0}
  .hero-copy{max-width:none;text-align:left}
  .hero-visual{display:none}
  .hero-actions{grid-template-columns:1fr;max-width:540px}
  .price-mini{width:100%;justify-content:center}
  .cards.four{grid-template-columns:repeat(2,1fr)}
  .compare-box{grid-template-columns:1fr;gap:16px}
  .vs{margin:auto}
  .timeline{grid-template-columns:1fr 1fr}
  .step-card::after{display:none}
  .time-card{min-height:220px}
  .price-panel{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .layout,.narrow{width:min(100% - 28px, var(--max))}
  .sp-only{display:block}
  .site-header{border-radius:18px;padding:10px 12px}
  .brand span:last-child{font-size:14px}
  .brand-mark{width:28px;height:28px}
  .header-cta{font-size:12px;padding:0 12px;min-height:34px}
  .hero{padding:86px 0 42px}
  .hero-copy{text-align:left;padding-top:0}
  .eyebrow{font-size:17px}
  .hero h1{font-size:44px}
  .hero h2{font-size:42px;letter-spacing:.05em}
  .lead{font-size:15px;line-height:1.8}
  .badges span{font-size:12px;padding:8px 11px}
  .price-mini strong{font-size:40px}
  .btn{min-height:58px}
  .hero-bg{height:250px;border-radius:22px}
  .section{padding:54px 0}
  .section-heading{gap:10px;margin-bottom:24px}
  .section-heading p{font-size:25px;letter-spacing:.04em}
  .section-heading .line{width:44px}
  .cards.four{grid-template-columns:1fr;gap:16px}
  .card{padding:24px 20px}
  .compare-card{padding:28px 22px;min-height:auto}
  .timeline{grid-template-columns:1fr}
  .price-panel{padding:16px;border-radius:22px}
  .price-main{padding:28px 22px}
  .price-main h3{font-size:30px}
  .price-large strong{font-size:54px}
  .price-details{padding:20px 10px}
  .price-details li{display:block}
  .price-details span{display:block;margin-bottom:4px}
  summary{padding:16px 18px 16px 16px;padding-right:42px;align-items:flex-start}
  summary span{width:30px;height:30px}
  details p{padding:0 18px 18px 60px}
  .final-cta{padding:72px 0 48px}
  .final-cta h2{font-size:50px;letter-spacing:.04em}
  .btn.large{min-width:100%;font-size:16px}
  .support-strip span{min-width:100%}
}