:root {
  --navy: #10233f;
  --navy-2: #17335a;
  --gold: #b8863b;
  --gold-dark: #96692a;
  --paper: #ffffff;
  --paper-alt: #f6f7fa;
  --ink: #1c2531;
  --ink-soft: #5b6472;
  --line: #e2e5ec;
  --ok-bg: #eef6f0;
  --ok-ink: #23623c;
  --warn-bg: #fbf2e4;
  --warn-ink: #7a5416;
  --radius: 10px;
  --radius-lg: 16px;
  --wrap: 1100px;
  --shadow: 0 6px 24px rgba(16, 35, 63, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 22px;
}

a {
  color: var(--navy-2);
}

h1, h2, h3 {
  color: var(--navy);
  line-height: 1.5;
  font-weight: 800;
}

h2 {
  font-size: 1.5rem;
  margin: 40px 0 18px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--gold);
  display: inline-block;
}

h3 {
  font-size: 1.08rem;
  margin: 22px 0 10px;
  color: var(--navy-2);
}

p {
  margin: 0 0 15px;
}

ul, ol {
  margin: 0 0 15px;
}

img {
  max-width: 100%;
}

/* PR notice */
.pr-notice {
  background: var(--navy);
  color: #f1e9d8;
  text-align: center;
  padding: 10px 12px;
  font-size: 0.8rem;
  font-weight: 700;
}

/* Header */
.corp-nav {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 45;
}

.corp-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  gap: 14px;
}

.corp-logo {
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--navy);
  text-decoration: none;
}

.corp-logo span {
  color: var(--gold-dark);
}

.corp-nav-links {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  flex-wrap: wrap;
}

.corp-nav-links a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-block;
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  text-align: center;
  border: none;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.btn-cta {
  background: var(--gold);
  color: #211705;
  box-shadow: 0 8px 20px rgba(184, 134, 59, 0.32);
}

.btn-cta:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.82rem;
}

.btn-lg {
  padding: 16px 30px;
  font-size: 1rem;
  width: 100%;
}

@media (min-width: 480px) {
  .btn-lg {
    width: auto;
  }
}

/* Hero */
.biz-hero {
  background: linear-gradient(155deg, var(--navy) 0%, #1c3a63 100%);
  color: #eef1f6;
  padding: 46px 0 40px;
}

.biz-kicker {
  display: inline-block;
  background: rgba(184, 134, 59, 0.22);
  color: #f1d6a2;
  border: 1px solid rgba(184, 134, 59, 0.5);
  font-size: 0.76rem;
  font-weight: 800;
  padding: 5px 13px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.biz-hero h1 {
  color: #ffffff;
  font-size: 1.7rem;
  margin: 0 0 14px;
}

.biz-hero-lead {
  color: #c9d3e2;
  font-size: 0.95rem;
  max-width: 640px;
}

.biz-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 8px;
}

/* Sections */
.sect {
  padding: 42px 0;
}

.sect-alt {
  background: var(--paper-alt);
}

.note-box {
  font-size: 0.83rem;
  color: var(--ink-soft);
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  border-radius: 4px;
  padding: 13px 16px;
}

/* Service / content cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  margin: 26px 0;
}

.svc-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.svc-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.svc-card h3 {
  margin: 6px 0 4px;
  font-size: 1.02rem;
}

.svc-card p {
  font-size: 0.86rem;
  color: var(--ink-soft);
  margin: 0;
  flex-grow: 1;
}

.svc-card-link {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--gold-dark);
}

/* Pricing table */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 22px 0;
}

.price-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  min-width: 640px;
}

.price-table th,
.price-table td {
  padding: 13px 15px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  font-size: 0.86rem;
}

.price-table thead th {
  background: var(--navy);
  color: #fff;
}

.price-table tbody tr:nth-child(even) {
  background: var(--paper-alt);
}

/* Checklist */
.tick-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 18px 0;
}

.tick-list li {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 15px 12px 36px;
  position: relative;
  font-size: 0.88rem;
}

.tick-list li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  color: var(--ok-ink);
  font-weight: 900;
}

/* Flow steps */
.flow-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 24px 0;
}

.flow-steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.flow-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.88rem;
}

.flow-steps h3 {
  margin: 0 0 4px;
}

.flow-steps p {
  margin: 0;
  font-size: 0.87rem;
  color: var(--ink-soft);
}

/* Tags */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  color: var(--navy-2);
}

/* Accordion */
.qa-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 22px;
}

.qa-item {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 18px;
}

.qa-item summary {
  cursor: pointer;
  font-weight: 700;
  padding: 14px 0;
  list-style: none;
  position: relative;
  padding-right: 28px;
  font-size: 0.94rem;
}

.qa-item summary::-webkit-details-marker {
  display: none;
}

.qa-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 12px;
  font-size: 1.25rem;
  color: var(--gold-dark);
}

.qa-item[open] summary::after {
  content: "−";
}

.qa-item p {
  font-size: 0.87rem;
  color: var(--ink-soft);
  margin: 0 0 15px;
}

/* CTA panel */
.cta-panel {
  background: linear-gradient(155deg, var(--navy) 0%, #1c3a63 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  margin: 32px 0;
}

.cta-panel h2 {
  color: #fff;
  border-bottom: none;
  padding-bottom: 0;
  font-size: 1.3rem;
}

.cta-panel p {
  color: #cdd6e5;
  font-size: 0.87rem;
}

.cta-fine {
  font-size: 0.75rem;
  color: #a9b6cb;
  margin-top: 10px;
}

.ad-slot {
  margin: 20px auto 0;
  max-width: 468px;
  border: 1px dashed #5a7196;
  border-radius: 8px;
  padding: 14px;
  text-align: center;
}

.ad-slot-label {
  display: inline-block;
  font-size: 0.68rem;
  color: #cdd6e5;
  background: rgba(255, 255, 255, 0.12);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.ad-slot-msg {
  font-size: 0.76rem;
  color: #a9b6cb;
  margin: 0;
}

/* Internal link list */
.related-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.related-links a {
  display: block;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 15px;
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--navy);
}

.back-link {
  display: inline-block;
  margin: 26px 0 4px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--navy-2);
  text-decoration: none;
}

/* Footer */
.corp-footer {
  background: #0b1a2e;
  color: #9fb0c7;
  padding: 36px 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 16px;
  font-size: 0.84rem;
}

.footer-links a {
  color: #e4ebf5;
  text-decoration: none;
  font-weight: 700;
}

.footer-pr {
  font-weight: 700;
  color: #fff;
  font-size: 0.82rem;
}

.footer-disclaimer {
  font-size: 0.75rem;
  line-height: 1.9;
  color: #7488a3;
}

.footer-meta {
  font-size: 0.75rem;
  color: #566a86;
  margin: 0;
}

/* Responsive */
@media (max-width: 768px) {
  .biz-hero h1 {
    font-size: 1.4rem;
  }

  h2 {
    font-size: 1.22rem;
  }

  .corp-nav-links {
    display: none;
  }
}