/* =============================================
   オフィスS - Modern Design System
   Color: Sakura pink accent on clean white
   ============================================= */

:root {
  --color-primary: #e8919a;
  --color-primary-dark: #c97580;
  --color-primary-light: #fbe6ea;
  --color-primary-soft: #fdf4f6;
  --color-accent: #f5d4a8;
  --color-text: #2a2a2a;
  --color-text-muted: #666;
  --color-text-light: #999;
  --color-border: #eaeaea;
  --color-bg: #ffffff;
  --color-bg-alt: #faf8f8;
  --color-success: #6db580;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --container: 1180px;
  --header-height: 80px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "ヒラギノ角ゴ ProN W3", "Yu Gothic", YuGothic, Meiryo, sans-serif;
  font-weight: 400;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "palt";
}

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

a {
  color: var(--color-primary-dark);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary); }

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

p { margin: 0 0 1em; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* =============================================
   Top Bar (info)
   ============================================= */
.topbar {
  background: var(--color-primary-soft);
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
}
.topbar__inner {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 16px;
  padding: 8px 24px;
  max-width: var(--container);
  margin: 0 auto;
}

/* =============================================
   Header
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  gap: 24px;
}
.site-logo a { display: inline-block; }
.site-logo img { max-height: 54px; width: auto; }

.header-contact {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-soft));
  border-radius: var(--radius-md);
  border: 1px solid var(--color-primary-light);
}
.header-phone__num {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.04em;
}
.header-phone__sub {
  font-size: 11px;
  color: var(--color-text-muted);
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  background: var(--color-primary);
  color: #fff !important;
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}
.cta-btn:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  color: #fff !important;
}
.cta-btn--outline {
  background: transparent;
  color: var(--color-primary-dark) !important;
  border: 1.5px solid var(--color-primary);
}
.cta-btn--outline:hover {
  background: var(--color-primary);
  color: #fff !important;
}
.cta-btn--lg { padding: 14px 36px; font-size: 16px; }

/* =============================================
   Nav
   ============================================= */
.site-nav {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}
.site-nav__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.site-nav__list {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav__list a {
  display: block;
  padding: 16px 20px;
  color: var(--color-text);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  transition: all var(--transition);
}
.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  background: var(--color-primary);
  transition: all var(--transition);
  transform: translateX(-50%);
}
.site-nav__list a:hover::after,
.site-nav__list a.current::after { width: 60%; }
.site-nav__list a:hover { color: var(--color-primary-dark); }

/* Mobile toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
}

/* =============================================
   Hero
   ============================================= */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-soft) 0%, #fff 100%);
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-primary-light), transparent);
  opacity: 0.6;
}
.hero::before {
  width: 500px; height: 500px;
  top: -200px; right: -150px;
}
.hero::after {
  width: 400px; height: 400px;
  bottom: -150px; left: -100px;
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}
.hero__title {
  font-size: 42px;
  line-height: 1.3;
  margin-bottom: 24px;
  color: var(--color-text);
}
.hero__title .accent {
  color: var(--color-primary);
  position: relative;
}
.hero__lead {
  font-size: 17px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero__ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero__visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

/* =============================================
   Page header (sub pages)
   ============================================= */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-soft), #fff);
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-primary-light), transparent);
  top: -100px;
  right: -50px;
  opacity: 0.5;
}
.page-header__inner {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary-dark); }
.breadcrumb span { color: var(--color-text-light); }
.page-header h1 {
  font-size: 36px;
  margin-bottom: 8px;
}
.page-header__lead {
  color: var(--color-text-muted);
  font-size: 16px;
  margin: 0;
}

/* =============================================
   Section / Content area
   ============================================= */
.section {
  padding: 80px 0;
}
.section--alt { background: var(--color-bg-alt); }
.section--tight { padding: 48px 0; }
.section__title {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
}
.section__title--left { text-align: left; }
.section__lead {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 720px;
  margin: 0 auto 48px;
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
  color: inherit;
}
.card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
  object-fit: contain;
}
.card__title {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--color-text);
}
.card__desc {
  color: var(--color-text-muted);
  font-size: 14px;
  flex-grow: 1;
  margin-bottom: 16px;
  line-height: 1.7;
}
.card__more {
  color: var(--color-primary-dark);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Feature list */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 32px;
}
.feature {
  text-align: center;
  padding: 24px;
}
.feature__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 16px;
}
.feature h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.feature p {
  color: var(--color-text-muted);
  font-size: 14px;
  margin: 0;
}

/* Info banner */
.banner-notice {
  background: linear-gradient(135deg, var(--color-primary-soft), #fff);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 24px 0;
}
.banner-notice h4 {
  color: var(--color-primary-dark);
  margin-bottom: 8px;
  font-size: 16px;
}
.banner-notice p { margin: 0; font-size: 14px; color: var(--color-text-muted); }

/* Content prose */
.prose h2 {
  font-size: 26px;
  margin-top: 56px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary-light);
  position: relative;
}
.prose h2::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 60px;
  height: 2px;
  background: var(--color-primary);
}
.prose h3 {
  font-size: 20px;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-primary-dark);
}
.prose p { color: var(--color-text); line-height: 1.9; }
.prose ul, .prose ol { padding-left: 24px; line-height: 1.9; }
.prose li { margin-bottom: 6px; }
.prose img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin: 16px 0;
}
.prose strong { color: var(--color-primary-dark); }

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 56px;
  align-items: start;
}
.sidebar {
  position: sticky;
  top: 100px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}
.sidebar h4 {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar li { margin-bottom: 4px; }
.sidebar a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 14px;
  transition: all var(--transition);
}
.sidebar a:hover { background: #fff; color: var(--color-primary-dark); }
.sidebar a.current {
  background: var(--color-primary);
  color: #fff;
}

/* Table */
.table-wrap { overflow-x: auto; margin: 24px 0; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
table.data-table th,
table.data-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
table.data-table th {
  background: var(--color-primary-soft);
  color: var(--color-primary-dark);
  font-weight: 600;
  white-space: nowrap;
}
table.data-table td.num {
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  white-space: nowrap;
}
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover { background: var(--color-primary-soft); }

/* Step list */
.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 32px 0;
}
.steps > li {
  counter-increment: step;
  position: relative;
  padding: 28px 28px 28px 88px;
  margin-bottom: 20px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.steps > li::before {
  content: counter(step);
  position: absolute;
  top: 28px;
  left: 28px;
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}
.steps h3 {
  margin-top: 0;
  color: var(--color-text);
}
.steps img {
  max-width: 100%;
  margin-top: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* QA accordion style */
.qa-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.qa-item:hover { box-shadow: var(--shadow-md); }
.qa-q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-weight: 700;
  color: var(--color-text);
  font-size: 17px;
  margin-bottom: 12px;
}
.qa-q::before {
  content: "Q";
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}
.qa-a {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  color: var(--color-text-muted);
  padding-left: 0;
}
.qa-a::before {
  content: "A";
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
}

/* Form */
.form-wrap {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 48px;
  box-shadow: var(--shadow-sm);
}
.form-row { margin-bottom: 24px; }
.form-row label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 14px;
}
.form-row label .req {
  color: var(--color-primary);
  margin-left: 6px;
  font-size: 12px;
}
.form-row input[type=text],
.form-row input[type=email],
.form-row input[type=tel],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  transition: border-color var(--transition);
}
.form-row textarea { min-height: 140px; resize: vertical; }
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.form-row .hint {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Payment cards */
.pay-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 24px;
}
.pay-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
}
.pay-card h4 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--color-primary-dark);
}
.pay-card ul { padding-left: 20px; font-size: 14px; color: var(--color-text-muted); margin: 0 0 12px; }

/* Price plan hero */
.price-hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  margin-bottom: 48px;
  position: relative;
  overflow: hidden;
}
.price-hero h2 { color: #fff; font-size: 28px; margin-bottom: 12px; }
.price-hero .price {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}
.price-hero .price small { font-size: 20px; font-weight: 400; }
.price-hero .unit { font-size: 14px; opacity: 0.85; margin-top: 8px; }

/* Legal list */
.legal-list { list-style: none; padding: 0; counter-reset: legal; }
.legal-list > li {
  counter-increment: legal;
  margin-bottom: 40px;
  padding-left: 24px;
  border-left: 3px solid var(--color-primary-light);
}
.legal-list > li h3 {
  color: var(--color-primary-dark);
  font-size: 18px;
  margin-bottom: 12px;
}
.legal-list > li h3::before {
  content: "第" counter(legal) "条 ";
  color: var(--color-primary);
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
  background: linear-gradient(180deg, #fff 0%, var(--color-primary-soft) 100%);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 24px;
  color: var(--color-text-muted);
  font-size: 14px;
}
.site-footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand img { max-height: 48px; margin-bottom: 16px; }
.footer-brand p { font-size: 13px; line-height: 1.8; }
.footer-col h5 {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 16px;
  font-weight: 700;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
  color: var(--color-text-muted);
  font-size: 13px;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--color-primary-dark); }
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-light);
}

/* =============================================
   CTA strip
   ============================================= */
.cta-strip {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-soft));
  padding: 64px 24px;
  text-align: center;
  border-radius: var(--radius-lg);
  max-width: var(--container);
  margin: 0 auto 80px;
}
.cta-strip h2 { font-size: 28px; margin-bottom: 12px; }
.cta-strip p { color: var(--color-text-muted); margin-bottom: 24px; }
.cta-strip .phone-big {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin: 12px 0;
  letter-spacing: 0.04em;
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__title { font-size: 32px; }
  .hero__visual { order: -1; max-width: 400px; }
  .hero { padding: 48px 0 64px; }
  .content-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 56px 0; }
  .page-header h1 { font-size: 28px; }
}
@media (max-width: 640px) {
  .site-header__inner { flex-wrap: wrap; gap: 12px; padding: 12px 20px; }
  .site-logo img { max-height: 42px; }
  .header-contact { width: 100%; justify-content: space-between; }
  .header-phone__num { font-size: 17px; }
  .nav-toggle { display: block; position: absolute; top: 14px; right: 14px; }
  .site-nav__inner { padding: 0; }
  .site-nav__list { flex-wrap: wrap; justify-content: center; gap: 0; }
  .site-nav__list a { padding: 12px 14px; font-size: 13px; }
  .hero__title { font-size: 26px; }
  .section__title { font-size: 24px; }
  .price-hero .price { font-size: 42px; }
  .form-wrap { padding: 24px 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps > li { padding: 24px 20px 20px 20px; }
  .steps > li::before { top: -16px; left: 20px; }
  .prose h2 { font-size: 22px; }
}

/* Utility */
.text-center { text-align: center; }
.mt-lg { margin-top: 48px; }
.mb-0 { margin-bottom: 0; }
.small { font-size: 13px; color: var(--color-text-muted); }
.tag {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  margin-right: 6px;
}