@charset 'UTF-8';

/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --navy:   #1A2B5E;
  --navy-d: #111E42;
  --cherry: #B31B1B;
  --ivory:  #F9F7F2;
  --gold:   #C8972A;
  --gold-l: #F5E6C0;
  --slate:  #4A5568;
  --mist:   #E8ECF5;
  --white:  #FFFFFF;
  --rule:   #D0D5E8;
  --serif:  'Noto Serif JP', Georgia, serif;
  --sans:   'Noto Sans JP', sans-serif;
}
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--slate); background: var(--ivory); font-size: 16px; line-height: 1.8; }

/* ── Nav ──────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(26,43,94,0.97);
  backdrop-filter: blur(8px);
  padding: 0 5%;
  display: flex; align-items: center; justify-content: space-between;
  height: 56px;
}
.nav-logo { font-family: var(--serif); font-size: 1.1rem; color: var(--white); font-weight: 700; letter-spacing: .02em; }
.nav-logo span { color: var(--gold); }
.nav-cta {
  background: var(--cherry); color: var(--white);
  border: none; border-radius: 4px; padding: 9px 20px;
  font-size: .85rem; font-family: var(--sans); font-weight: 700;
  cursor: pointer; white-space: nowrap; text-decoration: none;
  transition: background .2s;
}
.nav-cta:hover { background: #8f1515; }

/* ── Hero ─────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  background: var(--navy);
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 80px 5% 60px;
  gap: 48px;
}
.hero-left {}
.hero-eyebrow {
  font-size: .8rem; font-weight: 500; letter-spacing: .12em;
  color: var(--gold); border-left: 3px solid var(--gold);
  padding-left: 12px; margin-bottom: 28px;
  font-weight: 700;
}
.hero-headline {
  font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--white); line-height: 1.5; font-weight: 700;
  margin-bottom: 24px;
}
.hero-headline em {
  font-style: normal; color: var(--gold);
}
.hero-sub {
  font-size: .95rem; color: rgba(255,255,255,.72);
  max-width: 480px; margin-bottom: 40px; line-height: 1.9;
}
.hero-badges {
  display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px;
}
.badge {
  border: 1px solid rgba(200,151,42,.4);
  border-radius: 6px; padding: 14px 18px; text-align: center;
  min-width: 130px;
}
.badge-num { font-family: Georgia, serif; font-size: 2rem; font-weight: 700; color: var(--gold); line-height: 1; display: block; }
.badge-label { font-size: .72rem; color: rgba(255,255,255,.65); display: block; margin-top: 6px; line-height: 1.4; }
.hero-cta {
  display: inline-block; background: var(--cherry); color: var(--white);
  text-decoration: none; font-weight: 700; padding: 16px 36px;
  border-radius: 4px; font-size: 1rem; transition: background .2s;
}
.hero-cta:hover { background: #8f1515; }
.hero-right {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px; padding: 36px;
}
.hero-data-title {
  font-size: .78rem; color: rgba(255,255,255,.5); margin-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,.1); padding-bottom: 12px;
}
.data-stat { display: flex; align-items: baseline; gap: 12px; margin-bottom: 20px; }
.data-stat-num { font-family: Georgia, serif; font-size: 3.2rem; font-weight: 700; color: var(--gold); line-height: 1; }
.data-stat-info {}
.data-stat-label { font-size: .85rem; color: var(--white); font-weight: 500; }
.data-stat-sub { font-size: .75rem; color: rgba(255,255,255,.5); margin-top: 2px; }
.data-divider { border: none; border-top: 1px solid rgba(255,255,255,.1); margin: 20px 0; }
.data-table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.data-table th { color: rgba(255,255,255,.45); font-weight: 400; text-align: left; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.data-table td { color: var(--white); padding: 7px 0; border-bottom: 1px solid rgba(255,255,255,.07); }
.data-table td:not(:first-child) { text-align: center; }
.data-table .highlight-row td { color: var(--gold); font-weight: 700; }
.data-source { font-size: .7rem; color: rgba(255,255,255,.3); margin-top: 16px; line-height: 1.6; }

/* ── Sections common ──────────────────────────────── */
section { padding: 88px 5%; }
.section-inner { max-width: 960px; margin: 0 auto; }
.section-label {
  font-size: .75rem; font-weight: 500; letter-spacing: .1em;
  color: var(--cherry); border-left: 3px solid var(--cherry);
  padding-left: 10px; margin-bottom: 20px; display: block;
}
.section-title {
  font-family: var(--serif); font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  color: var(--navy); font-weight: 700; line-height: 1.5;
  margin-bottom: 16px;
}
.section-lead { font-size: .95rem; color: var(--slate); max-width: 640px; line-height: 1.9; margin-bottom: 48px; }
.rule { border: none; border-top: 1px solid var(--rule); margin: 0; }

/* ── S2 課題 ──────────────────────────────────────── */
.s2 { background: var(--white); }
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--rule); border: 1px solid var(--rule); }
.pain-item { background: var(--white); padding: 28px 24px; }
.pain-icon { font-size: 1.4rem; margin-bottom: 12px; }
.pain-text { font-size: .9rem; color: var(--navy); font-weight: 500; line-height: 1.7; }
.pain-item.featured { background: var(--navy); }
.pain-item.featured .pain-text { color: var(--white); }
.pain-item.featured .pain-icon { filter: brightness(10); }

/* ── S3 メソッド ──────────────────────────────────── */
.s3 { background: var(--ivory); }
.method-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.method-points { display: flex; flex-direction: column; gap: 24px; }
.method-point { display: flex; gap: 16px; align-items: flex-start; }
.method-point-bar { width: 3px; background: var(--cherry); flex-shrink: 0; align-self: stretch; border-radius: 2px; }
.method-point-content {}
.method-point-head { font-weight: 700; color: var(--navy); font-size: .95rem; margin-bottom: 4px; }
.method-point-body { font-size: .88rem; color: var(--slate); line-height: 1.8; }
.method-box {
  background: var(--navy); color: var(--white); padding: 32px;
  border-radius: 6px;
}
.method-box-title { font-family: var(--serif); font-size: 1rem; color: var(--gold); margin-bottom: 20px; font-weight: 700; }
.method-four { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.method-four-item { background: rgba(255,255,255,.08); padding: 12px 14px; border-radius: 4px; }
.method-four-item-en { font-size: .78rem; color: var(--gold); font-weight: 700; letter-spacing: .03em; }
.method-four-item-jp { font-size: .82rem; color: rgba(255,255,255,.8); margin-top: 3px; }
.trust-badges { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.15); }
.trust-badge { font-size: .72rem; color: rgba(255,255,255,.55); }

/* ── S4 低学年囲い込み ────────────────────────────── */
.s4 { background: var(--navy); }
.s4 .section-title { color: var(--white); }
.s4 .section-lead { color: rgba(255,255,255,.65); }
.s4 .section-label { color: var(--gold); border-color: var(--gold); }
.roadmap {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2px; background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.1);
  margin-bottom: 48px;
}
.roadmap-col { background: var(--navy-d); padding: 28px 24px; }
.roadmap-grade { font-size: .75rem; color: var(--gold); font-weight: 700; margin-bottom: 16px; letter-spacing: .05em; }
.roadmap-steps { display: flex; flex-direction: column; gap: 10px; }
.roadmap-step { display: flex; align-items: baseline; gap: 10px; }
.roadmap-step-grade { font-size: .75rem; color: rgba(255,255,255,.4); min-width: 40px; }
.roadmap-step-level { font-size: .88rem; color: var(--white); font-weight: 500; }
.roadmap-step-level.peak { color: var(--gold); font-weight: 700; }
.roadmap-note { font-size: .72rem; color: rgba(255,255,255,.3); margin-top: 16px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.1); }

/* LTV表 */
.ltv-wrap { margin-bottom: 48px; }
.ltv-title { font-size: .8rem; color: rgba(255,255,255,.5); margin-bottom: 16px; }
.ltv-table { width: 100%; border-collapse: collapse; }
.ltv-table th {
  background: rgba(200,151,42,.15); color: var(--gold);
  font-size: .8rem; font-weight: 500; padding: 12px 16px; text-align: left;
  border-bottom: 1px solid rgba(200,151,42,.2);
}
.ltv-table td { font-size: .9rem; color: var(--white); padding: 14px 16px; border-bottom: 1px solid rgba(255,255,255,.07); }
.ltv-table td.ltv-num { font-family: Georgia, serif; font-size: 1.1rem; color: var(--gold); font-weight: 700; }
.ltv-table tr:hover td { background: rgba(255,255,255,.03); }
.ltv-note { font-size: .72rem; color: rgba(255,255,255,.3); margin-top: 10px; }

.catchphrase-block {
  background: var(--cherry); padding: 32px 36px; border-radius: 4px;
}
.catchphrase-text {
  font-family: var(--serif); font-size: clamp(1.1rem, 2vw, 1.45rem);
  color: var(--white); font-weight: 700; line-height: 1.65;
}

/* ── S5 推薦文 ────────────────────────────────────── */
.s5 { background: var(--white); }
.endorsement-wrap { display: grid; grid-template-columns: 200px 1fr; gap: 48px; align-items: start; }
.endorsement-photo {
  background: var(--mist); border-radius: 6px;
  aspect-ratio: 3/4; display: flex; align-items: center; justify-content: center;
  color: var(--rule); font-size: .8rem; text-align: center; padding: 16px;
  border: 1px solid var(--rule);
}
.endorsement-right {}
.endorsement-affil { font-size: .78rem; color: var(--slate); margin-bottom: 6px; }
.endorsement-name { font-family: Georgia, serif; font-size: 1.2rem; color: var(--navy); font-weight: 700; margin-bottom: 24px; }
.endorsement-quote {
  border-left: 3px solid var(--gold);
  padding-left: 20px; margin-bottom: 20px;
}
.endorsement-quote p { font-size: .93rem; color: var(--slate); line-height: 2; font-style: italic; }
.endorsement-pull {
  background: var(--gold-l); padding: 18px 22px; border-radius: 4px;
  font-size: .88rem; color: var(--navy); line-height: 1.8; font-weight: 500;
}

/* ── S6 実績データ ────────────────────────────────── */
.s6 { background: var(--ivory); }
.data-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--rule); margin-bottom: 40px; }
.data-hero-cell { background: var(--white); padding: 40px 36px; text-align: center; }
.data-hero-pct { font-family: Georgia, serif; font-size: clamp(3rem, 6vw, 4.5rem); font-weight: 700; color: var(--navy); line-height: 1; display: block; }
.data-hero-pct span { color: var(--cherry); }
.data-hero-label { font-size: .9rem; color: var(--slate); margin-top: 10px; display: block; }
.data-hero-sub { font-size: .8rem; color: var(--gold); font-weight: 700; margin-top: 8px; display: block; }
.data-detail { background: var(--white); border: 1px solid var(--rule); }
.data-detail-head {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  background: var(--navy); padding: 12px 20px;
}
.data-detail-head span { font-size: .8rem; color: rgba(255,255,255,.6); font-weight: 500; }
.data-detail-head span:not(:first-child) { text-align: center; }
.data-detail-row { display: grid; grid-template-columns: 1fr 1fr 1fr; padding: 13px 20px; border-top: 1px solid var(--rule); }
.data-detail-row:nth-child(odd) { background: var(--ivory); }
.data-detail-row span { font-size: .9rem; color: var(--navy); }
.data-detail-row span:not(:first-child) { text-align: center; font-weight: 700; }
.data-detail-row.sumrow span { color: var(--cherry); font-weight: 700; }
.data-tag-row { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 20px; }
.data-tag { background: var(--mist); padding: 8px 14px; border-radius: 4px; font-size: .78rem; color: var(--navy); font-weight: 500; }

/* ── S7 収益シミュ ────────────────────────────────── */
.s7 { background: var(--white); }
.sim-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; background: var(--rule); border: 1px solid var(--rule); margin-bottom: 24px; }
.sim-col { background: var(--white); padding: 28px 22px; }
.sim-col.featured { background: var(--navy); }
.sim-students { font-size: .75rem; color: var(--slate); font-weight: 500; margin-bottom: 16px; }
.sim-col.featured .sim-students { color: rgba(255,255,255,.5); }
.sim-rows { display: flex; flex-direction: column; gap: 10px; }
.sim-row { display: flex; justify-content: space-between; align-items: baseline; font-size: .85rem; padding-bottom: 8px; border-bottom: 1px solid var(--rule); }
.sim-col.featured .sim-row { border-color: rgba(255,255,255,.1); }
.sim-row-label { color: var(--slate); }
.sim-col.featured .sim-row-label { color: rgba(255,255,255,.5); }
.sim-row-val { font-family: Georgia, serif; font-weight: 700; color: var(--navy); }
.sim-col.featured .sim-row-val { color: var(--white); }
.sim-total { display: flex; justify-content: space-between; align-items: baseline; margin-top: 16px; }
.sim-total-label { font-size: .8rem; font-weight: 700; color: var(--navy); }
.sim-col.featured .sim-total-label { color: var(--gold); }
.sim-total-val { font-family: Georgia, serif; font-size: 1.6rem; font-weight: 700; color: var(--cherry); }
.sim-col.featured .sim-total-val { color: var(--gold); }
.sim-note { font-size: .75rem; color: var(--slate); opacity: .65; margin-top: 8px; }
.sim-col.featured .sim-note { color: rgba(255,255,255,.4); }
.sim-disclaimer { font-size: .75rem; color: var(--slate); opacity: .55; }

/* ── S_CAMPAIGN 限定スペシャルキャンペーン ──────────────── */
.s-campaign { background: linear-gradient(135deg, var(--navy) 0%, #1a3a5c 100%); padding: 80px 0; }
.s-campaign .section-title { color: #fff; }
.s-campaign .section-label { color: rgba(255,255,255,0.6); }
.campaign-box { background: rgba(255,255,255,0.07); border: 2px solid var(--gold); border-radius: 16px; padding: 48px 40px; max-width: 760px; margin: 40px auto 0; text-align: center; }
.campaign-headline { font-size: 1.35rem; font-weight: 700; color: #fff; line-height: 1.6; margin-bottom: 28px; }
.campaign-highlight { color: var(--gold); font-size: 1.6rem; }
.campaign-price-wrap { margin-bottom: 20px; }
.campaign-price-before { color: rgba(255,255,255,0.65); font-size: .95rem; margin-bottom: 6px; }
.campaign-price-main { color: #fff; font-size: 1.2rem; font-weight: 700; }
.campaign-price-num { color: var(--gold); font-size: 2.2rem; font-weight: 900; }
.campaign-divider { display: inline-block; background: var(--gold); color: var(--navy); font-weight: 700; font-size: .85rem; padding: 4px 24px; border-radius: 20px; margin: 20px 0 28px; }
.campaign-guarantee { display: flex; align-items: flex-start; gap: 16px; background: rgba(255,255,255,0.1); border-radius: 10px; padding: 24px 28px; text-align: left; margin-bottom: 24px; }
.campaign-guarantee-icon { font-size: 2rem; flex-shrink: 0; }
.campaign-guarantee-text { color: rgba(255,255,255,0.9); font-size: .92rem; line-height: 1.75; }
.campaign-guarantee-text strong { color: #fff; }
.campaign-note { color: var(--gold); font-size: 1.05rem; font-weight: 700; }
@media(max-width:640px){
  .campaign-box { padding: 32px 20px; }
  .campaign-highlight { font-size: 1.3rem; }
  .campaign-price-num { font-size: 1.8rem; }
  .campaign-guarantee { flex-direction: column; gap: 10px; }
}

/* ── S8 導入の流れ ────────────────────────────────── */
.s8 { background: var(--ivory); }
.flow-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.flow-step { padding: 28px 20px; position: relative; }
.flow-step::after {
  content: '›'; position: absolute; right: -8px; top: 50%;
  transform: translateY(-50%); color: var(--rule); font-size: 1.5rem;
}
.flow-step:last-child::after { display: none; }
.flow-num { font-family: Georgia, serif; font-size: 2rem; color: var(--rule); font-weight: 700; line-height: 1; margin-bottom: 12px; }
.flow-head { font-size: .9rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.flow-body { font-size: .8rem; color: var(--slate); line-height: 1.7; }
.flow-highlight .flow-num { color: var(--cherry); }
.flow-highlight .flow-head { color: var(--cherry); }

/* ── S9 CTA ───────────────────────────────────────── */
.s9 {
  background: var(--navy);
  text-align: center;
  padding: 96px 5%;
}
.s9 .section-title { color: var(--white); margin-bottom: 12px; }
.s9 .section-lead { color: rgba(255,255,255,.6); margin: 0 auto 48px; }
.form-wrap { max-width: 540px; margin: 0 auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.form-input {
  width: 100%; padding: 13px 16px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.06);
  color: var(--white); font-family: var(--sans); font-size: .9rem;
}
.form-input::placeholder { color: rgba(255,255,255,.3); }
.form-input:focus { outline: none; border-color: var(--gold); background: rgba(255,255,255,.1); }
.form-select {
  width: 100%; padding: 13px 16px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.7); font-family: var(--sans); font-size: .9rem;
  margin-bottom: 12px; cursor: pointer;
}
.form-select option { background: var(--navy-d); color: var(--white); }
.form-submit {
  width: 100%; padding: 18px; background: var(--cherry); color: var(--white);
  border: none; border-radius: 4px; font-size: 1rem; font-weight: 700;
  font-family: var(--sans); cursor: pointer; transition: background .2s;
}
.form-submit:hover { background: #8f1515; }
.form-alt { font-size: .8rem; color: rgba(255,255,255,.35); margin-top: 16px; }
.form-alt a { color: rgba(255,255,255,.5); }

/* ── Footer ───────────────────────────────────────── */
footer {
  background: var(--navy-d); padding: 36px 5%;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-left { font-size: .78rem; color: rgba(255,255,255,.35); }
.footer-right { font-size: .75rem; color: rgba(255,255,255,.25); }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding: 80px 5% 48px; }
  .hero-right { display: none; }
  .pain-grid { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .roadmap { grid-template-columns: 1fr; }
  .data-hero { grid-template-columns: 1fr; }
  .sim-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr 1fr; }
  .flow-step::after { display: none; }
  .endorsement-wrap { grid-template-columns: 1fr; }
  .endorsement-photo { max-width: 200px; }
  .form-grid { grid-template-columns: 1fr; }
  .ltv-table th, .ltv-table td { padding: 10px 12px; font-size: .82rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
.privacy {
margin-top: 50px;
text-align: left;
color: rgba(255, 255, 255, .6);
}
.privacy h3 {
margin-bottom: 20px;
text-align: center;
}
.privacy h4 {
margin-bottom: 5px;
}
.privacy p {
margin-bottom: 20px;
}