/* =========================================================
   Bankers ステップアップ投資キャンペーン LP
   参考LP: https://lp-bankers.com/debut-campaign/ のデザインを踏襲
   ========================================================= */

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", -apple-system, "system-ui", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #222;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: #4a2087;
  text-decoration: underline;
}

a:hover {
  opacity: 0.8;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.4;
}

p {
  margin: 0;
}

ul, ol, dl, dd {
  margin: 0;
  padding: 0;
}

ul, ol {
  padding-left: 1.5em;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.spacer-40 { height: 40px; }

.text-sm { font-size: 14px; }
.text-xs { font-size: 12px; color: #666; }

.sp-only { display: none; }

/* ---------- Marker (下60%だけ黄色ハイライト・濃いめ) ---------- */
.marker {
  background: linear-gradient(transparent 55%, #ffe066 55%);
  padding: 0 3px;
  font-weight: 700;
  color: #222;
}

/* ---------- Button (CTA) ---------- */
.btn-cta {
  display: inline-block;
  color: #fff !important;
  background: #4a2087;
  border-radius: 30px;
  padding: 15px 28px;
  font-size: 17px;
  font-weight: 700;
  text-decoration: none;
  border: 0;
  transition: transform .1s ease, box-shadow .2s ease, opacity .2s ease;
  box-shadow: 0 4px 0 rgba(74, 32, 135, 0.25);
  min-width: 280px;
  text-align: center;
}

.btn-cta:hover {
  transform: translateY(1px);
  box-shadow: 0 2px 0 rgba(74, 32, 135, 0.25);
  opacity: 1;
}

.btn-cta--sm {
  padding: 12px 20px;
  font-size: 15px;
  min-width: 0;
}

.btn-cta .arrow {
  display: inline-block;
  margin-left: 4px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  padding: 16px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-header .logo img {
  height: 32px;
  width: auto;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-link {
  color: #4a2087;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.header-cta {
  display: inline-block;
  color: #fff !important;
  background: #4a2087;
  border-radius: 30px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

/* ---------- Hero ---------- */
/* バナーを主役にしたクリーンなFV。極薄水色背景＋カード型バナー */
.hero {
  background: #eef6fb;
  padding: 48px 0 56px;
  text-align: center;
}

.hero-visual {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 16px;
}

.hero-visual img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(30, 20, 60, 0.12);
}

/* ---------- Intro ---------- */
.intro {
  padding: 64px 0 32px;
  text-align: center;
}

.intro p {
  font-size: 17px;
  line-height: 2.1;
  color: #444;
}

.intro-cta {
  margin-top: 40px;
  text-align: center;
}

.cta-note {
  margin-top: 14px;
  font-size: 13px;
  color: #666;
  text-align: center;
}

.cta-note a {
  color: #4a2087;
  font-weight: 700;
}

.sub-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #4a2087;
  font-size: 14px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.sub-cta-link .arrow {
  font-weight: 400;
}

.sub-cta-link:hover {
  text-decoration: none;
  opacity: 0.8;
}

/* ---------- Section Title ---------- */
.section-title {
  position: relative;
  font-size: 24px;
  font-weight: 700;
  color: #222;
  text-align: center;
  padding-bottom: 16px;
  margin: 0 0 8px;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: #4a2087;
  margin: 16px auto 0;
  border-radius: 2px;
}

.section-subtitle {
  font-size: 14px;
  color: #666;
  text-align: center;
  margin-bottom: 40px;
}

/* ---------- Details ---------- */
.details {
  background: #f9f9f9;
  padding: 64px 0;
}

.details-table {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.details-table dl {
  margin: 0;
}

.details-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.details-row:last-child {
  border-bottom: none;
}

.details-row dt {
  background: #4a2087;
  color: #fff;
  font-weight: 700;
  padding: 20px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 15px;
}

.details-row dd {
  padding: 20px 24px;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: #333;
}

.details-row dd strong {
  color: #4a2087;
  font-size: 1.15em;
}

.details-row dd .note {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed rgba(0, 0, 0, 0.08);
  font-size: 13px;
  color: #666;
  line-height: 1.8;
}

/* ---------- Steps ---------- */
.steps {
  padding: 64px 0;
  background: #fff;
}

.steps-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step-card {
  display: flex;
  gap: 24px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 28px;
  align-items: flex-start;
}

.step-number {
  flex-shrink: 0;
  width: 80px;
  background: #4a2087;
  color: #fff;
  border-radius: 6px;
  padding: 12px 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.2;
}

.step-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0.9;
}

.step-num {
  font-size: 32px;
  font-weight: 700;
  margin-top: 4px;
}

.step-content {
  flex: 1;
  min-width: 0;
}

.step-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: #222;
  margin-bottom: 12px;
}

.step-content p {
  font-size: 15px;
  color: #444;
  line-height: 1.9;
}

/* STEPカード内のCTAブロックを中央揃え */
.step-content > .mt-16 {
  text-align: center;
  margin-top: 20px;
}

.step-content .btn-cta--sm {
  padding: 13px 28px;
  font-size: 15px;
  min-width: 240px;
  box-shadow: 0 3px 0 rgba(74, 32, 135, 0.25);
}

.step-login-note {
  font-size: 13px;
  color: #666;
  text-align: center;
}

.step-login-note a {
  color: #4a2087;
  font-weight: 700;
}

.steps-cta {
  margin-top: 48px;
  text-align: center;
}

/* ---------- Notes ---------- */
.notes {
  background: #f9f9f9;
  padding: 64px 0;
}

.notes-inner {
  background: #fff;
  border-radius: 8px;
  padding: 40px 40px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.notes-block h3 {
  font-size: 18px;
  font-weight: 700;
  color: #222;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 4px solid #4a2087;
}

.notes-block ul {
  padding-left: 20px;
}

.notes-block li {
  font-size: 14px;
  color: #333;
  line-height: 1.9;
  margin-bottom: 8px;
}

.notes-block li ul {
  margin-top: 8px;
  padding-left: 20px;
}

.notes-block li ul li {
  font-size: 13px;
  color: #555;
  margin-bottom: 4px;
}

/* ---------- Risk Disclosure ---------- */
.risk-disclosure {
  padding: 48px 0 64px;
  background: #fff;
}

.risk-inner {
  background: #fafafa;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  padding: 32px;
}

.risk-inner h3 {
  font-size: 15px;
  font-weight: 700;
  color: #222;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.risk-inner p {
  font-size: 13px;
  color: #444;
  line-height: 1.9;
}

.risk-inner ol {
  margin-top: 16px;
  padding-left: 20px;
}

.risk-inner li {
  font-size: 13px;
  color: #444;
  line-height: 1.9;
  margin-bottom: 6px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #2a2a2a;
  color: #fff;
  padding: 40px 0 24px;
  font-size: 12px;
  line-height: 1.8;
}

.site-footer .container {
  text-align: center;
}

.footer-company-name {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
}

.footer-company p,
.footer-support p {
  margin: 2px 0;
  color: #ccc;
}

.footer-support {
  margin-top: 16px;
}

.footer-copyright {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
  color: #999;
  font-size: 11px;
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  .container {
    padding: 0 20px;
  }

  .sp-only {
    display: inline;
  }

  /* Header */
  .site-header {
    padding: 12px 0;
  }

  .site-header .logo img {
    height: 26px;
  }

  .header-link {
    font-size: 13px;
  }

  .header-cta {
    padding: 8px 14px;
    font-size: 12px;
  }

  /* Hero */
  .hero {
    padding: 28px 0 32px;
  }

  .hero-visual {
    padding: 0 12px;
  }

  .hero-visual img {
    border-radius: 8px;
  }

  /* Intro */
  .intro {
    padding: 40px 0 24px;
  }

  .intro p {
    font-size: 15px;
    line-height: 2;
    text-align: left;
  }

  .intro p br {
    display: none;
  }

  /* Button */
  .btn-cta {
    min-width: 0;
    width: 100%;
    max-width: 360px;
    padding: 14px 20px;
    font-size: 16px;
  }

  /* Section Title */
  .section-title {
    font-size: 20px;
  }

  /* Details */
  .details {
    padding: 40px 0;
  }

  .details-row {
    grid-template-columns: 1fr;
  }

  .details-row dt {
    padding: 12px 16px;
    font-size: 14px;
  }

  .details-row dd {
    padding: 16px 20px;
    font-size: 14px;
  }

  /* Steps */
  .steps {
    padding: 40px 0;
  }

  .step-card {
    flex-direction: column;
    padding: 20px;
    gap: 16px;
  }

  .step-number {
    width: 100%;
    flex-direction: row;
    justify-content: center;
    gap: 8px;
    padding: 8px;
  }

  .step-num {
    margin-top: 0;
    font-size: 24px;
  }

  .step-content h3 {
    font-size: 16px;
  }

  .step-content p {
    font-size: 14px;
  }

  /* Notes */
  .notes {
    padding: 40px 0;
  }

  .notes-inner {
    padding: 24px 20px;
  }

  .notes-block li {
    font-size: 13px;
  }

  /* Risk Disclosure */
  .risk-disclosure {
    padding: 32px 0 48px;
  }

  .risk-inner {
    padding: 20px 16px;
  }

  /* Footer */
  .site-footer {
    padding: 32px 0 20px;
  }
}

@media (max-width: 480px) {
  .btn-cta {
    font-size: 15px;
    padding: 13px 16px;
  }

  .header-actions {
    gap: 8px;
  }

  .header-link {
    font-size: 12px;
  }

  .header-cta {
    padding: 7px 10px;
    font-size: 11px;
  }
}