@charset "UTF-8";

:root {
  --c-primary: #3ad4a7;
  --c-primary-strong: #22b287;
  --c-primary-soft: rgba(58, 212, 167, 0.16);
  --c-bg: #023937;
  --c-bg-alt: #062a43;
  --c-card: #1b2948;
  --c-surface: #131f3a;
  --c-text: #e9f1ff;
  --c-sub: #b9ccee;
  --c-line: #2f446b;
  --c-chip: #0f1731;
  --radius-lg: 16px;
  --radius-md: 10px;
  --shadow: 0 26px 62px rgba(1, 8, 24, 0.42);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--c-text);
  font-family: "BIZ UDPGothic", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  line-height: 1.7;
  background:
    radial-gradient(85% 110% at 0% 0%, rgba(19, 117, 110, 0.62) 0%, rgba(19, 117, 110, 0) 55%),
    radial-gradient(72% 95% at 100% 4%, rgba(21, 69, 118, 0.66) 0%, rgba(21, 69, 118, 0) 57%),
    linear-gradient(140deg, var(--c-bg) 0%, var(--c-bg-alt) 100%);
  padding: 20px;
}

.page-shell {
  max-width: 1080px;
  margin: 0 auto;
  background: linear-gradient(160deg, #203154 0%, #1b2948 62%, #17223d 100%);
  border: 1px solid var(--c-line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: var(--c-surface);
  color: var(--c-text);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 700;
  padding: 8px 14px;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.top-nav a:hover {
  border-color: var(--c-primary);
  background: var(--c-primary-soft);
  color: #dffff5;
}

.hero {
  border: 1px solid var(--c-line);
  border-radius: 20px;
  background: linear-gradient(170deg, rgba(12, 24, 49, 0.94) 0%, rgba(13, 26, 53, 0.9) 100%);
  padding: 22px;
  margin-bottom: 18px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.hero p {
  margin: 0;
  color: var(--c-sub);
}

.hero .hero-lead {
  margin-top: 12px;
  font-size: 1.05rem;
  color: #d8fff0;
  font-weight: 700;
}

.hero-meta {
  margin-top: 12px;
  font-size: 0.86rem;
  color: #9fc5f8;
}

.badge-row {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(58, 212, 167, 0.48);
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(58, 212, 167, 0.14);
  color: #dffef1;
  font-size: 0.79rem;
  font-weight: 800;
}

.accent {
  color: var(--c-primary);
}

.section-panel {
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  background: rgba(13, 27, 54, 0.7);
  padding: 18px;
  margin-bottom: 16px;
}

.section-panel h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  line-height: 1.3;
}

.section-panel p {
  margin: 0 0 10px;
  color: var(--c-sub);
}

.hero p,
.section-panel p,
.check-list li,
.step-list li,
.cta-band p {
  max-width: 68ch;
}

.section-panel p,
.check-list li,
.step-list li {
  font-size: 0.97rem;
}

.mini-note {
  font-size: 0.85rem;
  color: #9fc5f8;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 0;
}

.chip {
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: var(--c-chip);
  color: #e7f3ff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 5px 11px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.guide-card {
  border: 1px solid var(--c-line);
  border-radius: 14px;
  background: rgba(10, 20, 41, 0.76);
  padding: 14px;
}

.guide-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.guide-card p {
  margin: 0 0 10px;
  color: var(--c-sub);
  font-size: 0.94rem;
}

.guide-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.pro-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(250, 204, 21, 0.7);
  border-radius: 999px;
  padding: 2px 10px;
  background: linear-gradient(160deg, rgba(254, 240, 138, 0.92) 0%, rgba(250, 204, 21, 0.92) 100%);
  color: #312106;
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}

.guide-card-pro-spotlight {
  grid-column: 1 / -1;
  border-color: rgba(250, 204, 21, 0.58);
  background: linear-gradient(160deg, rgba(250, 204, 21, 0.14) 0%, rgba(58, 212, 167, 0.14) 100%);
}

.guide-card-pro-spotlight p {
  color: #dffff2;
}

.check-list,
.step-list {
  margin: 0;
  padding-left: 1.25rem;
}

.check-list li,
.step-list li {
  margin-bottom: 8px;
  color: var(--c-sub);
}

.step-list li strong,
.check-list li strong {
  color: #e7fff5;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
}

.plan-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.plan-table th,
.plan-table td {
  border: 1px solid var(--c-line);
  padding: 10px 12px;
  text-align: left;
  font-size: 0.92rem;
}

.plan-table th {
  background: rgba(58, 212, 167, 0.14);
  color: #defff4;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.plan-table td {
  color: var(--c-sub);
}

.plan-table .feature {
  color: #eaf3ff;
  font-weight: 700;
}

.plan-table .pro-chip {
  margin-left: 6px;
  vertical-align: middle;
}

.cta-band {
  border: 1px solid rgba(58, 212, 167, 0.5);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(58, 212, 167, 0.2) 0%, rgba(58, 212, 167, 0.1) 100%);
  padding: 16px;
  margin-top: 14px;
}

.cta-band h2,
.cta-band h3 {
  margin: 0 0 8px;
}

.cta-band p {
  margin: 0;
  color: #defcef;
}

.action-row {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 900;
  padding: 10px 18px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-strong) 100%);
  color: #07251c;
  border-color: rgba(58, 212, 167, 0.85);
}

.btn-secondary {
  border-color: var(--c-line);
  background: rgba(9, 17, 36, 0.75);
  color: #d7e8ff;
}

.btn-secondary:hover {
  border-color: rgba(58, 212, 167, 0.65);
  background: rgba(58, 212, 167, 0.16);
  color: #defff4;
}

.faq-list details {
  border: 1px solid var(--c-line);
  border-radius: 12px;
  background: rgba(11, 21, 44, 0.72);
  padding: 10px 12px;
  margin-bottom: 8px;
}

.faq-list summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  font-weight: 800;
  color: #e8f4ff;
  padding-right: 1.4rem;
  border-radius: 8px;
  transition: background 0.2s ease, color 0.2s ease;
}

.faq-list summary:hover {
  background: rgba(58, 212, 167, 0.14);
  color: #defff4;
}

.faq-list summary:focus-visible {
  outline: 3px solid var(--c-primary);
  outline-offset: 2px;
}

.faq-list summary::after {
  content: "▼";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.72rem;
  color: #9ec4ff;
  transition: transform 0.2s ease;
}

.faq-list details[open] summary::after {
  transform: translateY(-50%) rotate(-180deg);
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
}

.faq-control-row .btn {
  padding: 7px 13px;
  font-size: 0.82rem;
}

.faq-control-row .btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.faq-list p {
  margin: 8px 0 0;
  color: var(--c-sub);
}

.site-footer {
  margin-top: 20px;
  border-top: 1px solid var(--c-line);
  padding-top: 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.site-footer a {
  color: #c7defc;
  text-decoration: none;
  font-weight: 700;
}

.site-footer a:hover {
  color: #defdf1;
}

.footer-note {
  margin: 0;
  color: #99b9e5;
  font-size: 0.83rem;
}

@media (max-width: 860px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .page-shell {
    border-radius: 16px;
    padding: 16px;
  }

  .hero {
    padding: 16px;
  }

  .hero h1 {
    font-size: 1.55rem;
  }

  .section-panel {
    padding: 14px;
  }

  .action-row .btn {
    width: 100%;
  }
}