/* ===================================================
   スマラボ 静的サイト - styles.css
   BtoB SI/保守運用サイト用デザインシステム
   =================================================== */

/* ---------------------------------------------------
   1. CSS カスタムプロパティ
   --------------------------------------------------- */
:root {
  /* Base Colors */
  --c-dark:        #111827;
  --c-dark-2:      #1F2937;
  --c-dark-3:      #374151;
  --c-light:       #F9FAFB;
  --c-light-2:     #F3F4F6;
  --c-border:      #E5E7EB;
  --c-border-dark: #D1D5DB;

  /* Accent Colors */
  --c-red:         #7F1D1D;
  --c-red-2:       #991B1B;
  --c-red-hover:   #6B1515;
  --c-red-bg:      #FEF2F2;
  --c-amber:       #92400E;
  --c-slate:       #475569;
  --c-slate-light: #64748B;

  /* Text */
  --c-text:        #111827;
  --c-text-sub:    #475569;
  --c-text-muted:  #6B7280;
  --c-text-light:  #F9FAFB;
  --c-text-light-sub: #D1D5DB;

  /* Layout */
  --container:     1200px;
  --container-s:   800px;
  --radius:        8px;
  --radius-s:      6px;

  /* Spacing */
  --section-pad:   80px 0;
  --section-pad-s: 60px 0;

  /* Shadows */
  --shadow-sm:     0 1px 3px rgba(0,0,0,0.07), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:     0 4px 6px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.05);

  /* Typography */
  --font-base:     'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Yu Gothic Medium', 'Yu Gothic', 'Meiryo', sans-serif;
  --font-size-base: 16px;
  --line-height:   1.75;
}

/* ---------------------------------------------------
   2. Reset & Base
   --------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  color: var(--c-text);
  background: #fff;
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ---------------------------------------------------
   3. Typography
   --------------------------------------------------- */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(1.75rem, 3.5vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h3 { font-size: clamp(1.1rem, 1.8vw, 1.35rem); }
h4 { font-size: 1.05rem; }

p {
  color: var(--c-text-sub);
  line-height: 1.8;
}

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.8125rem; }
.text-muted { color: var(--c-text-muted); }
.text-light { color: var(--c-text-light); }
.text-light-sub { color: var(--c-text-light-sub); }
.text-center { text-align: center; }
.text-bold { font-weight: 700; }

/* ---------------------------------------------------
   4. Layout Utilities
   --------------------------------------------------- */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

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

.section {
  padding: var(--section-pad);
}

.section--light {
  background: var(--c-light-2);
}

.section--dark {
  background: var(--c-dark);
  color: var(--c-text-light);
}

.section--dark-2 {
  background: var(--c-dark-2);
  color: var(--c-text-light);
}

.section--red-accent {
  background: var(--c-dark);
  border-top: 3px solid var(--c-red-2);
  color: var(--c-text-light);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.flex { display: flex; }
.flex--center { align-items: center; }
.flex--gap { gap: 16px; }
.flex--gap-lg { gap: 24px; }

/* ---------------------------------------------------
   5. Section Heading
   --------------------------------------------------- */
.section-head {
  margin-bottom: 48px;
}

.section-head--center {
  text-align: center;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-red-2);
  border-left: 3px solid var(--c-red-2);
  padding-left: 10px;
  margin-bottom: 14px;
  line-height: 1;
}

.section-label--light {
  color: #FCA5A5;
  border-left-color: #FCA5A5;
}

.section-label--amber {
  color: var(--c-amber);
  border-left-color: var(--c-amber);
}

.section-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.4;
  margin-bottom: 16px;
}

.section-title--light {
  color: var(--c-text-light);
}

.section-desc {
  font-size: 0.9375rem;
  color: var(--c-text-sub);
  max-width: 680px;
  line-height: 1.85;
}

.section-desc--light {
  color: var(--c-text-light-sub);
}

.section-head--center .section-desc {
  margin: 0 auto;
}

/* ---------------------------------------------------
   6. Buttons
   --------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-s);
  transition: all 0.18s ease;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.2;
  text-decoration: none;
}

.btn--primary {
  background: var(--c-red);
  color: #fff;
  border: 2px solid var(--c-red);
}

.btn--primary:hover {
  background: var(--c-red-hover);
  border-color: var(--c-red-hover);
}

.btn--secondary {
  background: transparent;
  color: var(--c-red);
  border: 2px solid var(--c-red);
}

.btn--secondary:hover {
  background: var(--c-red);
  color: #fff;
}

.btn--outline-light {
  background: transparent;
  color: var(--c-text-light);
  border: 2px solid rgba(249,250,251,0.5);
}

.btn--outline-light:hover {
  background: rgba(249,250,251,0.1);
  border-color: var(--c-text-light);
}

.btn--ghost {
  background: transparent;
  color: var(--c-text-sub);
  border: 2px solid var(--c-border-dark);
  padding: 10px 20px;
}

.btn--ghost:hover {
  border-color: var(--c-slate);
  color: var(--c-text);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 15px 32px;
  font-size: 1rem;
}

.btn-arrow {
  font-size: 0.875rem;
  color: var(--c-red-2);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.15s;
}

.btn-arrow:hover {
  gap: 10px;
}

.btn-arrow::after {
  content: '→';
}

.btn-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

/* ---------------------------------------------------
   7. Header
   --------------------------------------------------- */
/* Notice Bar */
.notice-bar {
  background: var(--c-dark);
  color: #fff;
  font-size: 0.6875rem;
}

.notice-bar:not(.is-ready) {
  display: none;
}

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

.notice-bar__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
}

.notice-bar__text {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: #fff;
  text-decoration: none;
}

.notice-bar__text:hover {
  text-decoration: underline;
}

.notice-bar__label {
  background: var(--c-red);
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 2px;
  white-space: nowrap;
  flex-shrink: 0;
}

.notice-bar__more {
  flex-shrink: 0;
  font-size: 0.6875rem;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
  opacity: 0.85;
}

.notice-bar__more:hover {
  opacity: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo__img {
  display: block;
  height: 36px;
  width: auto;
  max-width: 180px;
}

.site-logo__img--footer {
  height: 40px;
  max-width: 200px;
}

.site-logo__mark {
  width: 32px;
  height: 32px;
  background: var(--c-red);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
}

.site-logo__text {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: -0.02em;
}

.site-logo__text span {
  color: var(--c-red);
}

/* Global Nav */
.global-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  margin-right: 24px;
}

.global-nav__item {
  position: relative;
}

.global-nav__link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  font-size: 0.8375rem;
  font-weight: 600;
  color: var(--c-text-sub);
  border-radius: 4px;
  transition: all 0.15s;
  white-space: nowrap;
}

.global-nav__link:hover {
  color: var(--c-text);
  background: var(--c-light-2);
}

.global-nav__link--active {
  color: var(--c-red);
}

/* Header CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-cta .btn {
  padding: 8px 16px;
  font-size: 0.8125rem;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  transition: all 0.2s;
  border-radius: 2px;
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
  padding: 12px 0 20px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

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

.mobile-nav__item a {
  display: block;
  padding: 10px 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--c-text-sub);
  border-bottom: 1px solid var(--c-border);
}

.mobile-nav__item:last-child a {
  border-bottom: none;
}

.mobile-nav__cta {
  max-width: var(--container);
  margin: 16px auto 0;
  padding: 0 24px;
  display: flex;
  gap: 8px;
}

.mobile-nav__cta .btn {
  flex: 1;
  justify-content: center;
}

/* ---------------------------------------------------
   8. Footer
   --------------------------------------------------- */
.site-footer {
  background: var(--c-dark);
  color: var(--c-text-light);
}

.footer-main {
  padding: 56px 0 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-inner {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
}

.footer-brand__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  text-decoration: none;
}

.footer-brand__desc {
  font-size: 0.8125rem;
  color: var(--c-text-light-sub);
  line-height: 1.7;
  margin-bottom: 24px;
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-nav__label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text-light);
  margin-bottom: 12px;
  text-transform: none;
  letter-spacing: 0;
}

.footer-nav__list li {
  margin-bottom: 6px;
}

.footer-nav__list a {
  font-size: 0.8125rem;
  color: var(--c-text-light-sub);
  transition: color 0.15s;
}

.footer-nav__list a:hover {
  color: var(--c-text-light);
}

.footer-bottom {
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.footer-bottom__links {
  display: flex;
  gap: 20px;
}

.footer-bottom__links a {
  font-size: 0.8125rem;
  color: var(--c-text-light-sub);
  transition: color 0.15s;
}

.footer-bottom__links a:hover {
  color: var(--c-text-light);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--c-text-light-sub);
}

/* ---------------------------------------------------
   9. Hero Section
   --------------------------------------------------- */
.hero {
  background: var(--c-dark);
  padding: 80px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 39px,
      rgba(255,255,255,0.015) 39px,
      rgba(255,255,255,0.015) 40px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 79px,
      rgba(255,255,255,0.015) 79px,
      rgba(255,255,255,0.015) 80px
    );
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__inner--center {
  display: flex;
  justify-content: center;
  text-align: center;
}

.hero__inner--center .hero__content {
  max-width: 760px;
}

.hero__inner--center .hero__kicker {
  justify-content: center;
}

.hero__inner--center .hero__desc {
  max-width: 100%;
}

.hero__inner--center .btn-group {
  justify-content: center;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: #FCA5A5;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
}

.hero__kicker::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--c-red-2);
}

.hero__title {
  font-size: clamp(1.8rem, 3.5vw, 2.9rem);
  font-weight: 800;
  color: var(--c-text-light);
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: normal;
  color: #FCA5A5;
}

.hero__desc {
  font-size: 1rem;
  color: var(--c-text-light-sub);
  line-height: 1.9;
  margin-bottom: 36px;
  max-width: 520px;
}

/* Hero Visual */
.hero-visual {
  background: var(--c-dark-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 28px;
  position: relative;
}

.hero-visual__title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-light-sub);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 20px;
  text-align: center;
}

.flow-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-row {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.flow-nodes {
  display: flex;
  gap: 8px;
  flex: 1;
}

.flow-node {
  flex: 1;
  background: var(--c-dark-3);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 10px 8px;
  text-align: center;
}

.flow-node__icon {
  width: 28px;
  height: 28px;
  margin: 0 auto 6px;
  border-radius: 50%;
  background: rgba(127,29,29,0.3);
  border: 1px solid rgba(153,27,27,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #FCA5A5;
}

.flow-node__label {
  font-size: 0.7rem;
  color: var(--c-text-light-sub);
  line-height: 1.3;
  font-weight: 600;
}

.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 0;
  color: var(--c-red-2);
  font-size: 1.1rem;
}

.flow-middle {
  background: linear-gradient(135deg, rgba(127,29,29,0.15), rgba(127,29,29,0.05));
  border: 1px solid rgba(153,27,27,0.3);
  border-radius: 6px;
  padding: 12px 16px;
}

.flow-middle__label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #FCA5A5;
  margin-bottom: 6px;
}

.flow-middle__items {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.flow-tag {
  font-size: 0.6875rem;
  background: rgba(127,29,29,0.2);
  border: 1px solid rgba(153,27,27,0.4);
  color: #FCA5A5;
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 600;
}

.flow-bottom-nodes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.flow-bottom-node {
  background: var(--c-dark-2);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px;
  padding: 10px 8px;
  text-align: center;
}

.flow-bottom-node__dot {
  width: 8px;
  height: 8px;
  background: var(--c-red-2);
  border-radius: 50%;
  margin: 0 auto 6px;
}

.flow-bottom-node__label {
  font-size: 0.7rem;
  color: var(--c-text-light-sub);
  font-weight: 600;
  line-height: 1.3;
}

/* ---------------------------------------------------
   10. Challenge Cards
   --------------------------------------------------- */
.challenge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.challenge-card {
  background: #fff;
  padding: 28px 24px;
  transition: background 0.15s;
  position: relative;
}

.challenge-card:hover {
  background: var(--c-light-2);
}

.challenge-card__number {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--c-red);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.challenge-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.challenge-card__desc {
  font-size: 0.8375rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
}

.challenge-card__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-red-2);
  transition: gap 0.15s;
}

.challenge-card__link:hover {
  gap: 9px;
}

.challenge-card__link::after {
  content: '→';
  font-size: 0.875rem;
}

/* ---------------------------------------------------
   11. Support Area / Service Cards
   --------------------------------------------------- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.support-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px;
  border-top: 3px solid var(--c-border);
  transition: border-top-color 0.15s, box-shadow 0.15s;
}

.support-card:hover {
  border-top-color: var(--c-red-2);
  box-shadow: var(--shadow-md);
}

.support-card--active {
  border-top-color: var(--c-red-2);
}

.support-card__icon {
  width: 44px;
  height: 44px;
  background: var(--c-light-2);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border: 1px solid var(--c-border);
}

.icon-svg {
  width: 22px;
  height: 22px;
  stroke: var(--c-slate);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.support-card--active .icon-svg,
.support-card:hover .icon-svg {
  stroke: var(--c-red-2);
}

.support-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-red-2);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.support-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.support-card__desc {
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.75;
  margin-bottom: 16px;
}

.support-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 3px;
  font-weight: 600;
}

.tag--gray {
  background: var(--c-light-2);
  color: var(--c-text-muted);
  border: 1px solid var(--c-border);
}

.tag--red {
  background: var(--c-red-bg);
  color: var(--c-red);
  border: 1px solid rgba(127,29,29,0.2);
}

.tag--amber {
  background: #FFFBEB;
  color: var(--c-amber);
  border: 1px solid rgba(146,64,14,0.2);
}

/* ---------------------------------------------------
   12. Structure / Why We Can Section
   --------------------------------------------------- */
.structure-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 64px;
  align-items: start;
}

.structure-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.structure-step {
  display: flex;
  gap: 20px;
  padding-bottom: 32px;
  position: relative;
}

.structure-step::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 40px;
  bottom: 0;
  width: 2px;
  background: var(--c-border);
}

.structure-step:last-child::before {
  display: none;
}

.structure-step__num {
  width: 40px;
  height: 40px;
  background: var(--c-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  z-index: 1;
  position: relative;
}

.structure-step:nth-child(odd) .structure-step__num {
  background: var(--c-red);
}

.structure-step__body {
  padding-top: 8px;
}

.structure-step__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}

.structure-step__desc {
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.75;
}

/* Structure Diagram (right side) */
.structure-diagram {
  background: var(--c-dark);
  border-radius: var(--radius);
  padding: 28px;
  color: var(--c-text-light);
}

.structure-diagram__title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-light-sub);
  letter-spacing: 0.08em;
  text-align: center;
  margin-bottom: 24px;
}

.structure-layers {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.structure-layer {
  padding: 14px 16px;
  border-radius: 6px;
  position: relative;
}

.structure-layer--japan {
  background: rgba(127,29,29,0.2);
  border: 1px solid rgba(153,27,27,0.4);
}

.structure-layer--knowledge {
  background: rgba(71,85,105,0.3);
  border: 1px solid rgba(71,85,105,0.5);
}

.structure-layer--team {
  background: rgba(31,41,55,0.8);
  border: 1px solid rgba(255,255,255,0.1);
}

.structure-layer__title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text-light);
  margin-bottom: 4px;
}

.structure-layer--japan .structure-layer__title { color: #FCA5A5; }

.structure-layer__items {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.structure-layer__item {
  font-size: 0.6875rem;
  color: var(--c-text-light-sub);
  background: rgba(255,255,255,0.05);
  padding: 2px 8px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.08);
}

.structure-arrow {
  text-align: center;
  color: var(--c-red-2);
  font-size: 1rem;
  padding: 2px 0;
}

/* ---------------------------------------------------
   13. Service List Cards
   --------------------------------------------------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: box-shadow 0.15s;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
}

.service-card__num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--c-red);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.service-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.service-card__challenge {
  font-size: 0.8125rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  padding: 10px 12px;
  background: var(--c-light-2);
  border-left: 3px solid var(--c-border);
  border-radius: 0 4px 4px 0;
  margin-bottom: 12px;
}

.service-card__value {
  font-size: 0.8125rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.service-card__footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
}

/* ---------------------------------------------------
   14. Legacy / COBOL Section
   --------------------------------------------------- */
.legacy-section {
  background: var(--c-dark);
  padding: var(--section-pad);
  position: relative;
  overflow: hidden;
}

.legacy-section--white {
  background: #fff;
}

.legacy-section--white::after {
  display: none;
}

.legacy-section--white .section-label--light {
  color: var(--c-red);
  border-left-color: var(--c-red);
}

.legacy-section--white .section-title--light {
  color: var(--c-text);
}

.legacy-section::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--c-red-2);
}

.legacy-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 56px;
  align-items: start;
}

.legacy-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.legacy-point {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.legacy-point__dot {
  width: 8px;
  height: 8px;
  background: var(--c-red-2);
  border-radius: 50%;
  margin-top: 7px;
  flex-shrink: 0;
}

.legacy-point__text {
  font-size: 0.9375rem;
  color: var(--c-text-light-sub);
  line-height: 1.7;
}

.legacy-panel {
  background: var(--c-dark-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 3px solid var(--c-red-2);
  border-radius: var(--radius);
  padding: 28px;
}

.legacy-panel__label {
  font-size: 0.75rem;
  font-weight: 700;
  color: #FCA5A5;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.legacy-panel__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.legacy-panel__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--c-text-light-sub);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.legacy-panel__item:last-child {
  border-bottom: none;
}

.legacy-panel__item::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--c-red-2);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ---------------------------------------------------
   15. Specification / AI Section
   --------------------------------------------------- */
.spec-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 56px;
  align-items: center;
}

.spec-flow {
  background: var(--c-dark);
  border-radius: var(--radius);
  padding: 28px;
}

.spec-flow__title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-light-sub);
  letter-spacing: 0.08em;
  text-align: center;
  margin-bottom: 20px;
}

.spec-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--c-dark-2);
  border-radius: 5px;
  border: 1px solid rgba(255,255,255,0.07);
}

.spec-item__before {
  font-size: 0.75rem;
  color: var(--c-text-light-sub);
  background: rgba(127,29,29,0.2);
  border: 1px solid rgba(153,27,27,0.3);
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
}

.spec-item__after {
  font-size: 0.75rem;
  color: #D1FAE5;
  background: rgba(6,95,70,0.2);
  border: 1px solid rgba(6,95,70,0.3);
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
}

.spec-item__arrow {
  color: var(--c-text-light-sub);
  font-size: 0.875rem;
  flex-shrink: 0;
}

.spec-content__points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.spec-point {
  padding: 16px 20px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  border-left: 3px solid var(--c-slate);
}

.spec-point__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
}

.spec-point__desc {
  font-size: 0.8375rem;
  color: var(--c-text-sub);
  line-height: 1.7;
}

/* ---------------------------------------------------
   16. Case Cards
   --------------------------------------------------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s;
}

.case-card__link {
  display: flex;
  flex-direction: column;
  flex: 1;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.case-card:hover {
  box-shadow: var(--shadow-md);
}

.case-card__thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--c-dark-2);
}

.case-card__thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.case-card__head {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-light-2);
}

.case-card__industry {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-slate);
  background: var(--c-border);
  padding: 2px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.case-card__challenge {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.45;
}

.case-card__challenge a {
  color: inherit;
  text-decoration: none;
}

.case-card__challenge a:hover {
  color: var(--c-red);
}

.case-card__body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-card__result {
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.case-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.case-card__footer {
  border-top: 1px solid var(--c-border);
  padding-top: 14px;
}

.case-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 920px;
  margin: 0 auto;
}

.case-list .case-card__link {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
}

.case-list .case-card__thumb {
  flex: 0 0 40%;
  width: 40%;
  min-width: 260px;
  aspect-ratio: 16 / 9;
  height: auto;
}

.case-list .case-card__content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.case-list .case-card__head {
  padding: 28px 32px 20px;
  border-bottom: none;
}

.case-list .case-card__body {
  padding: 0 32px 28px;
}

.case-list .case-card__challenge {
  font-size: 1.125rem;
  line-height: 1.55;
}

.case-list .case-card__result {
  font-size: 0.9375rem;
  line-height: 1.85;
}

.case-list .case-card__link:not(:has(.case-card__thumb)) {
  display: block;
}

/* ---------------------------------------------------
   17. Seminar / Column Cards
   --------------------------------------------------- */
.seminar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.seminar-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 20px;
  transition: box-shadow 0.15s;
}

.seminar-card:hover {
  box-shadow: var(--shadow-md);
}

.seminar-card__date-block {
  flex-shrink: 0;
  background: var(--c-dark);
  border-radius: 6px;
  padding: 10px 14px;
  text-align: center;
  min-width: 60px;
  align-self: flex-start;
}

.seminar-card__month {
  font-size: 0.7rem;
  color: var(--c-text-light-sub);
  letter-spacing: 0.06em;
}

.seminar-card__day {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
}

.seminar-card__year {
  font-size: 0.65rem;
  color: var(--c-text-light-sub);
}

.seminar-card__content {
  flex: 1;
}

.seminar-card__meta {
  margin-bottom: 8px;
}

.seminar-card__target {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  margin-bottom: 6px;
}

.seminar-card__title {
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.45;
  margin-bottom: 8px;
}

.seminar-card__title a {
  color: inherit;
  text-decoration: none;
}

.seminar-card__title a:hover {
  color: var(--c-red);
}

.seminar-card__desc {
  font-size: 0.8375rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  margin-bottom: 12px;
}

.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.column-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.15s;
}

a.column-card {
  text-decoration: none;
  color: inherit;
}

.column-card:hover {
  box-shadow: var(--shadow-md);
}

.column-card__thumb {
  aspect-ratio: 16 / 9;
  background: var(--c-dark-2);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.column-card__thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.column-card__thumb--placeholder {
  background: var(--c-light-2);
  flex-direction: column;
  gap: 10px;
}

.column-card__thumb--placeholder .column-card__thumb-logo {
  width: auto;
  height: 32px;
  max-width: 65%;
  object-fit: contain;
}

.column-card__thumb--placeholder .column-card__thumb-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
  text-transform: none;
}

.column-card__thumb-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-light-sub);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.column-card__body {
  padding: 18px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.column-card__cat {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-slate);
  margin-bottom: 6px;
}

.column-card__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.5;
  margin-bottom: 8px;
  flex: 1;
}

.column-card__date {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}

/* ---------------------------------------------------
   18. Download Cards
   --------------------------------------------------- */
.download-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.download-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: box-shadow 0.15s;
}

.download-card:hover {
  box-shadow: var(--shadow-md);
}

.download-card__icon {
  width: 52px;
  height: 52px;
  background: var(--c-dark);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.download-card__icon-text {
  font-size: 0.65rem;
  font-weight: 800;
  color: #FCA5A5;
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.2;
}

.download-card__content {
  flex: 1;
}

.download-card__target {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  margin-bottom: 6px;
}

.download-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.4;
  margin-bottom: 8px;
}

.download-card__desc {
  font-size: 0.8375rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  margin-bottom: 14px;
}

/* ---------------------------------------------------
   19. CTA Banner
   --------------------------------------------------- */
.cta-banner {
  background: var(--c-dark-2);
  border-radius: var(--radius);
  padding: 48px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--c-red-2);
}

.cta-banner__title {
  font-size: clamp(1.3rem, 2vw, 1.75rem);
  font-weight: 800;
  color: var(--c-text-light);
  margin-bottom: 14px;
  line-height: 1.45;
}

.cta-banner__desc {
  font-size: 0.9375rem;
  color: var(--c-text-light-sub);
  line-height: 1.85;
  max-width: 580px;
  margin: 0 auto 32px;
}

/* ---------------------------------------------------
   20. Page Hero (inner pages)
   --------------------------------------------------- */
.page-hero {
  background: var(--c-dark);
  padding: 56px 0 52px;
  position: relative;
  border-bottom: 3px solid var(--c-red-2);
}

.page-hero__kicker {
  font-size: 0.75rem;
  font-weight: 700;
  color: #FCA5A5;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.page-hero__kicker::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--c-red-2);
}

.page-hero__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--c-text-light);
  line-height: 1.35;
  margin-bottom: 16px;
}

.page-hero__desc {
  font-size: 0.9375rem;
  color: var(--c-text-light-sub);
  line-height: 1.85;
  max-width: 640px;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.breadcrumb__item {
  font-size: 0.8125rem;
  color: var(--c-text-light-sub);
}

.breadcrumb__item a {
  color: var(--c-text-light-sub);
  transition: color 0.15s;
}

.breadcrumb__item a:hover {
  color: var(--c-text-light);
}

.breadcrumb__sep {
  color: rgba(255,255,255,0.2);
  font-size: 0.75rem;
}

/* ---------------------------------------------------
   21. Form
   --------------------------------------------------- */
.form-wrap {
  max-width: 680px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
}

.form-required {
  font-size: 0.7rem;
  background: var(--c-red);
  color: #fff;
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 700;
}

.form-optional {
  font-size: 0.7rem;
  background: var(--c-border-dark);
  color: var(--c-text-muted);
  padding: 1px 6px;
  border-radius: 3px;
  font-weight: 600;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9375rem;
  font-family: var(--font-base);
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-s);
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--c-slate);
  box-shadow: 0 0 0 3px rgba(71,85,105,0.1);
}

.form-textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.7;
}

.form-select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 40px;
}

.form-check-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--c-red);
  cursor: pointer;
}

.form-check__label {
  font-size: 0.9rem;
  color: var(--c-text-sub);
}

.form-privacy {
  font-size: 0.8375rem;
  color: var(--c-text-sub);
  background: var(--c-light-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-s);
  padding: 16px 20px;
  line-height: 1.75;
  margin-bottom: 28px;
}

.form-privacy a {
  color: var(--c-slate);
  text-decoration: underline;
}

.form-assurance {
  background: var(--c-light-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 32px;
}

.form-assurance__title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 12px;
}

.form-assurance__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-assurance__item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.6;
}

.form-assurance__item::before {
  content: '✓';
  color: var(--c-slate);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ---------------------------------------------------
   22. Filter UI
   --------------------------------------------------- */
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.filter-btn {
  padding: 7px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-s);
  border: 1px solid var(--c-border-dark);
  background: #fff;
  color: var(--c-text-sub);
  cursor: pointer;
  transition: all 0.15s;
}

.filter-btn:hover {
  border-color: var(--c-slate);
  color: var(--c-text);
}

.filter-btn--active {
  background: var(--c-dark);
  border-color: var(--c-dark);
  color: #fff;
}

/* ---------------------------------------------------
   23. Divider
   --------------------------------------------------- */
.divider {
  height: 1px;
  background: var(--c-border);
  margin: 0;
}

/* ---------------------------------------------------
   24. Misc / Utility
   --------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.notice-box {
  background: var(--c-dark-2);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-amber);
  border-radius: var(--radius-s);
  padding: 14px 20px;
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.6;
  margin-bottom: 24px;
}

.notice-box--light {
  background: #FFFBEB;
  border-color: var(--c-border);
  border-left-color: var(--c-amber);
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
}

.detail-table th,
.detail-table td {
  text-align: left;
  padding: 14px 16px;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--c-border);
  line-height: 1.6;
  vertical-align: top;
}

.detail-table th {
  font-weight: 700;
  color: var(--c-text);
  background: var(--c-light-2);
  width: 160px;
  white-space: nowrap;
}

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

/* ---------------------------------------------------
   25. Responsive
   --------------------------------------------------- */
@media (max-width: 1023px) {
  .notice-bar__text {
    font-size: 0.75rem;
  }

  .site-header {
    top: 0;
  }

  .global-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    max-width: 480px;
  }

  .structure-layout {
    grid-template-columns: 1fr;
  }

  .structure-diagram {
    max-width: 480px;
  }

  .legacy-inner {
    grid-template-columns: 1fr;
  }

  .spec-layout {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .challenge-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-list .case-card__thumb {
    flex-basis: 38%;
    width: 38%;
    min-width: 220px;
  }

  .seminar-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  :root {
    --section-pad: 56px 0;
    --font-size-base: 15px;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .challenge-grid {
    grid-template-columns: 1fr;
  }

  .support-grid {
    grid-template-columns: 1fr;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: 1fr;
  }

  .case-list {
    gap: 28px;
  }

  .case-list .case-card__link {
    flex-direction: column;
  }

  .case-list .case-card__thumb {
    flex: none;
    width: 100%;
    min-width: 0;
    aspect-ratio: 16 / 9;
    height: auto;
  }

  .case-list .case-card__head {
    padding: 20px 20px 16px;
  }

  .case-list .case-card__body {
    padding: 0 20px 20px;
  }

  .case-list .case-card__challenge {
    font-size: 1rem;
  }

  .download-grid {
    grid-template-columns: 1fr;
  }

  .column-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .cta-banner {
    padding: 32px 24px;
  }

  .footer-nav-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .hero {
    padding: 56px 0 60px;
  }

  .hero__title {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
  }

  .page-hero {
    padding: 40px 0 36px;
  }

  .seminar-card {
    flex-direction: column;
  }

  .download-card {
    flex-direction: column;
  }

  .column-grid {
    grid-template-columns: 1fr;
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-group .btn {
    justify-content: center;
    text-align: center;
  }
}

/* Mobile nav open state */
.mobile-nav--open {
  display: block;
}

/* ================================================
   PAGE: 課題から探す (challenges)
   ================================================ */
.challenge-detail {
  padding: 56px 0;
  border-bottom: 1px solid var(--c-border);
}
.challenge-detail:nth-child(even) {
  background: var(--c-light-2);
}
.challenge-detail__inner {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}
.challenge-detail__sidebar {
  position: sticky;
  top: 80px;
}
.challenge-detail__num {
  font-size: 3rem;
  font-weight: 900;
  color: var(--c-border);
  line-height: 1;
  margin-bottom: 8px;
  letter-spacing: -0.04em;
}
.challenge-detail__title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 16px;
  line-height: 1.4;
}
.challenge-detail__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--c-red-bg);
  color: var(--c-red);
  border: 1px solid rgba(127,29,29,0.2);
  padding: 3px 10px;
  border-radius: 3px;
}
.challenge-detail__body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--c-border);
}
.challenge-detail__body h3.h3--red {
  border-bottom-color: var(--c-red-2);
}
.challenge-detail__block {
  margin-bottom: 28px;
}
.check-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--c-text-sub);
  line-height: 1.65;
}
.check-list li::before {
  content: '✓';
  color: var(--c-slate);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}
.risk-list li::before {
  content: '!';
  color: var(--c-amber);
  font-weight: 900;
  width: 18px;
  height: 18px;
  background: #FFFBEB;
  border: 1px solid rgba(146,64,14,0.2);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.related-services {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}
.related-service-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text);
  transition: border-color 0.15s, box-shadow 0.15s;
  text-decoration: none;
}
.related-service-link:hover {
  border-color: var(--c-red-2);
  box-shadow: var(--shadow-sm);
}
.related-service-link::after {
  content: '→';
  margin-left: auto;
  color: var(--c-red-2);
}
@media (max-width: 767px) {
  .challenge-detail__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .challenge-detail__sidebar {
    position: static;
  }
}

/* ================================================
   PAGE: サービス一覧 (services)
   ================================================ */
.service-detail-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
}
.service-detail-card__head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 24px;
  padding: 28px 32px;
  border-bottom: 1px solid var(--c-border);
}
.service-detail-card--cobol .service-detail-card__head {
  background: var(--c-dark);
}
.service-detail-card__num {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--c-red);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.service-detail-card--cobol .service-detail-card__num {
  color: #FCA5A5;
}
.service-detail-card__title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 8px;
}
.service-detail-card--cobol .service-detail-card__title {
  color: var(--c-text-light);
}
.service-detail-card__subtitle {
  font-size: 0.9rem;
  color: var(--c-text-sub);
  line-height: 1.7;
}
.service-detail-card--cobol .service-detail-card__subtitle {
  color: var(--c-text-light-sub);
}
.service-detail-card__body {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
}
.service-detail-col {
  padding: 24px 28px;
  border-right: 1px solid var(--c-border);
}
.service-detail-col:last-child {
  border-right: none;
}
.service-detail-col__label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.service-detail-col ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.service-detail-col li {
  font-size: 0.875rem;
  color: var(--c-text-sub);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.55;
}
.service-detail-col li::before {
  content: '–';
  color: var(--c-border-dark);
  flex-shrink: 0;
  font-size: 0.75rem;
  margin-top: 2px;
}
.service-detail-card__footer {
  padding: 18px 32px;
  background: var(--c-light-2);
  border-top: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.service-detail-card--cobol .service-detail-card__footer {
  background: var(--c-dark-2);
  border-top-color: rgba(255,255,255,0.08);
}
@media (max-width: 767px) {
  .service-detail-card__body {
    grid-template-columns: 1fr;
  }
  .service-detail-col {
    border-right: none;
    border-bottom: 1px solid var(--c-border);
  }
  .service-detail-col:last-child {
    border-bottom: none;
  }
  .service-detail-card__head {
    grid-template-columns: 1fr;
    padding: 20px;
  }
  .service-detail-card__footer {
    padding: 16px 20px;
  }
}

/* ================================================
   PAGE: セミナー一覧 (seminars)
   ================================================ */
.seminar-full-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  transition: box-shadow 0.15s;
  margin-bottom: 16px;
}
.seminar-full-card:hover {
  box-shadow: var(--shadow-md);
}
.seminar-full-card__date {
  background: var(--c-dark);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 88px;
  flex-shrink: 0;
}
.seminar-full-card__month {
  font-size: 0.75rem;
  color: var(--c-text-light-sub);
  letter-spacing: 0.08em;
}
.seminar-full-card__day {
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}
.seminar-full-card__weekday {
  font-size: 0.75rem;
  color: var(--c-text-light-sub);
  margin-top: 4px;
}
.seminar-full-card__body {
  padding: 20px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.seminar-full-card__meta {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.seminar-full-card__target {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}
.seminar-full-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.45;
  margin-bottom: 8px;
}

.seminar-full-card__title a {
  color: inherit;
  text-decoration: none;
}

.seminar-full-card__title a:hover {
  color: var(--c-red);
}
.seminar-full-card__desc {
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 14px;
}
.seminar-full-card__footer {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.seminar-status {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 3px;
}
.seminar-status--open {
  background: #ECFDF5;
  color: #065F46;
  border: 1px solid #6EE7B7;
}
.btn.is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}
.entry-featured {
  margin: 0 0 40px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-light-2);
}
.entry-featured__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.seminar-status--soon {
  background: #FEF3C7;
  color: #92400E;
  border: 1px solid #FCD34D;
}
.seminar-status--archive {
  background: #EEF2FF;
  color: #4338CA;
  border: 1px solid #C7D2FE;
}
.past-seminars .filter-bar {
  margin-bottom: 24px;
}
.seminar-past-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-border);
}
.seminar-past-item {
  border-bottom: 1px solid var(--c-border);
}
.seminar-past-item__link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  text-decoration: none;
  color: var(--c-text);
  transition: color 0.15s;
}
.seminar-past-item__link:hover .seminar-past-item__title {
  color: var(--c-red);
  text-decoration: underline;
}
.seminar-past-item__date {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  width: 120px;
}
.seminar-past-item__title {
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.5;
  flex: 1;
  min-width: 0;
}
.seminar-past-item .seminar-status {
  flex-shrink: 0;
  white-space: nowrap;
}
.past-seminar-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.past-seminar-toggle__icon {
  transition: transform 0.25s;
  flex-shrink: 0;
}
.past-seminar-toggle[aria-expanded="true"] .past-seminar-toggle__icon {
  transform: rotate(180deg);
}
.past-seminars {
  margin-top: 32px;
}
.past-seminars__header {
  border-top: 2px solid var(--c-border);
  padding-top: 32px;
  margin-bottom: 24px;
}
.past-seminars__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
}
.past-seminars__note {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
}
.seminar-full-card--past {
  opacity: 0.7;
}
.seminar-full-card--past .seminar-full-card__date {
  background: var(--c-dark-3);
}
.seminar-status--past {
  background: var(--c-light-2);
  color: var(--c-text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
}
@media (max-width: 767px) {
  .seminar-past-item__link {
    flex-wrap: wrap;
    gap: 8px 12px;
  }
  .seminar-past-item__date {
    width: auto;
  }
  .seminar-past-item__title {
    flex-basis: 100%;
  }
  .seminar-full-card {
    flex-direction: column;
  }
  .seminar-full-card__date {
    flex-direction: row;
    gap: 8px;
    padding: 12px 16px;
    min-width: auto;
  }
  .seminar-full-card__day {
    font-size: 1.5rem;
  }
}

/* ================================================
   PAGE: コラム一覧 (columns)
   ================================================ */
.col-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.col-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.15s, transform 0.15s;
}
.col-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.col-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}
.col-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.col-card__thumb svg,
.col-card__thumb img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}
.col-card__thumb--placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--c-light-2);
}
.col-card__thumb--placeholder .col-card__thumb-logo {
  width: auto;
  height: 32px;
  max-width: 65%;
  object-fit: contain;
}
.col-card__thumb--placeholder .col-card__thumb-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
}
.col-card__body {
  padding: 16px 18px 20px;
}
.col-card__cat {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-red);
  margin-bottom: 8px;
}
.col-card__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.5;
  margin-bottom: 12px;
}
.col-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.col-card__date {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}
.col-card__more {
  font-size: 0.8rem;
  color: var(--c-red);
  font-weight: 600;
}
@media (max-width: 1023px) {
  .col-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 599px) {
  .col-grid {
    grid-template-columns: 1fr;
  }
}

/* Pagination (shared) */
.pagination {
  margin-top: 48px;
}
.pagination__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.pagination__item {
  display: flex;
}
.pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: 6px;
  border: 1px solid var(--c-border);
  background: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-text-sub);
  text-decoration: none;
  line-height: 1;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
}
.pagination a.page-numbers:hover {
  border-color: var(--c-dark);
  color: var(--c-dark);
  box-shadow: var(--shadow-sm);
}
.pagination .page-numbers.current {
  background: var(--c-dark);
  border-color: var(--c-dark);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.pagination .page-numbers.dots {
  min-width: auto;
  padding: 0 4px;
  border: none;
  background: transparent;
  color: var(--c-text-muted);
  font-weight: 700;
  letter-spacing: 0.08em;
}
.pagination .page-numbers.dots:hover {
  box-shadow: none;
}
.pagination .prev.page-numbers,
.pagination .next.page-numbers {
  min-width: auto;
  padding: 0 16px;
  font-weight: 700;
}
.pagination .pagination__nav-label {
  font-size: 0.8125rem;
}
@media (max-width: 599px) {
  .pagination {
    margin-top: 36px;
  }
  .pagination__list {
    gap: 6px;
  }
  .pagination .page-numbers {
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    font-size: 0.8125rem;
  }
  .pagination .prev.page-numbers,
  .pagination .next.page-numbers {
    padding: 0 12px;
  }
  .pagination .pagination__nav-label {
    display: none;
  }
}

/* ================================================
   PAGE: よくある質問 (faq)
   ================================================ */
.faq-section .container {
  max-width: 800px;
}
.faq-section .filter-bar {
  margin-bottom: 20px;
}
.faq-section .list-summary {
  margin: 0 0 18px;
  font-size: 0.875rem;
  color: var(--c-text-muted);
}
.faq-section .list-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}
.faq-section .list-pagination__btn {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: #fff;
  color: var(--c-text);
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.faq-section .list-pagination__btn:hover:not(:disabled),
.faq-section .list-pagination__btn.is-active {
  background: var(--c-red);
  border-color: var(--c-red);
  color: #fff;
}
.faq-section .list-pagination__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.faq-section .list-pagination__ellipsis {
  color: var(--c-text-muted);
  padding: 0 2px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.15s;
}
.faq-item:hover {
  box-shadow: var(--shadow-sm);
}
.faq-item[open] {
  border-color: rgba(159, 18, 57, 0.25);
  box-shadow: var(--shadow-sm);
}
.faq-item__question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.5;
}
.faq-item__question::-webkit-details-marker {
  display: none;
}
.faq-item__q,
.faq-item__a {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 800;
}
.faq-item__q {
  background: var(--c-dark);
  color: #fff;
}
.faq-item__a {
  background: var(--c-red);
  color: #fff;
  margin-top: 2px;
}
.faq-item__text {
  flex: 1;
  min-width: 0;
}
.faq-item__toggle {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
}
.faq-item__toggle::before,
.faq-item__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 2px;
  background: var(--c-text-muted);
  transform: translate(-50%, -50%);
  transition: transform 0.15s, background 0.15s;
}
.faq-item__toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq-item[open] .faq-item__toggle::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}
.faq-item[open] .faq-item__question {
  border-bottom: 1px solid var(--c-border);
}
.faq-item__answer {
  display: flex;
  gap: 14px;
  padding: 18px 20px 22px;
}
.faq-item__body {
  flex: 1;
  min-width: 0;
  font-size: 0.9375rem;
  color: var(--c-text-sub);
  line-height: 1.75;
}
.faq-item__body p:last-child {
  margin-bottom: 0;
}
.faq-item__body ul,
.faq-item__body ol {
  padding-left: 1.2em;
}
.faq-empty {
  padding: 32px 24px;
  border: 1px dashed var(--c-border);
  border-radius: var(--radius);
  background: var(--c-light-2);
  color: var(--c-text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
  text-align: center;
}
.faq-empty code {
  font-size: 0.875em;
  background: #fff;
  padding: 2px 6px;
  border-radius: 4px;
}

/* ================================================
   PAGE: 資料ダウンロード (downloads)
   ================================================ */
.dl-category {
  margin-bottom: 56px;
}
.dl-category__label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-border);
}
.dl-category__title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--c-text);
}
.dl-category__count {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  font-weight: 600;
}
.dl-form-modal {
  background: var(--c-light-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 16px;
}
.dl-form-modal__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 16px;
}
.dl-form-modal__label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-red);
  margin-bottom: 6px;
}
.dl-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
.dl-modal.is-open {
  display: flex;
}
.dl-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
}
.dl-modal__dialog {
  position: relative;
  width: min(560px, 100%);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  box-shadow: var(--shadow-md);
}
.dl-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--c-light-2);
  color: var(--c-text-sub);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}
.dl-modal__close:hover {
  background: var(--c-border);
}

/* Fluent Forms theme styling */
.fluentform-wrap .fluentform {
  margin: 0;
}
.fluentform-wrap .ff-el-group {
  margin-bottom: 20px;
}
.fluentform-wrap .ff-el-input--label label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
}
.fluentform-wrap .ff-el-form-control,
.fluentform-wrap .ff-el-form-control:focus {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9375rem;
  font-family: var(--font-base);
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-s);
  box-shadow: none;
}
.fluentform-wrap .ff-el-form-control:focus {
  outline: none;
  border-color: var(--c-slate);
  box-shadow: 0 0 0 3px rgba(71,85,105,0.1);
}
.fluentform-wrap textarea.ff-el-form-control {
  min-height: 140px;
  line-height: 1.7;
}
.fluentform-wrap .ff-el-is-error .ff-el-form-control {
  border-color: var(--c-red);
}
.fluentform-wrap .ff-el-is-error .text-danger {
  font-size: 0.8125rem;
  color: var(--c-red);
  margin-top: 6px;
}
.fluentform-wrap .ff-el-tc {
  font-size: 0.8125rem;
  color: var(--c-text-sub);
  line-height: 1.7;
}
.fluentform-wrap .ff-el-tc a {
  color: var(--c-red);
}
.fluentform-wrap .ff-btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
  padding: 14px 28px;
  font-size: 0.9375rem;
  font-weight: 700;
  font-family: var(--font-base);
  color: #fff;
  background: var(--c-red);
  border: none;
  border-radius: var(--radius-s);
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}
.fluentform-wrap .ff-btn-submit:hover {
  background: var(--c-red-2);
}
.fluentform-wrap .ff-message-success {
  background: #ECFDF5;
  border: 1px solid #6EE7B7;
  border-radius: var(--radius);
  padding: 16px 20px;
  color: #065F46;
  font-size: 0.9375rem;
  line-height: 1.6;
}
.fluentform-wrap .ff-message-error {
  background: #FEF2F2;
  border: 1px solid #FECACA;
  border-radius: var(--radius);
  padding: 16px 20px;
  color: #991B1B;
  font-size: 0.9375rem;
}
.fluentform-wrap .ff-el-hidden,
.fluentform-wrap .ff-hidden {
  display: none !important;
}

/* ================================================
   PAGE: お問い合わせ (contact)
   ================================================ */
.contact-page .section {
  padding: 24px 0 40px;
}

.contact-page__title {
  font-size: 1.25rem;
  margin-bottom: 12px;
  line-height: 1.35;
}

.contact-page .mailform-wrap form#mail_form dl dt {
  margin-bottom: 2px;
  font-size: 0.8125rem;
  gap: 6px;
}

.contact-page .mailform-wrap form#mail_form dl dd {
  margin-bottom: 6px;
}

.contact-page .mailform-wrap form#mail_form input[type="text"],
.contact-page .mailform-wrap form#mail_form input[type="tel"],
.contact-page .mailform-wrap form#mail_form input[type="email"],
.contact-page .mailform-wrap form#mail_form select,
.contact-page .mailform-wrap form#mail_form textarea {
  padding: 7px 12px;
  font-size: 0.875rem;
}

.contact-page .mailform-wrap form#mail_form textarea {
  min-height: 72px;
  line-height: 1.55;
}

.contact-page .mailform-wrap .form-privacy {
  padding: 6px 10px;
  margin-bottom: 6px;
  font-size: 0.8125rem;
  line-height: 1.45;
}

.contact-page .mailform-wrap form#mail_form dl dd#privacy-policy {
  margin-bottom: 6px;
}

.contact-page .mailform-wrap .form-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
}

.contact-page .mailform-wrap form#mail_form dl dt span.required,
.contact-page .mailform-wrap form#mail_form dl dt span.optional {
  order: 0;
  margin-left: 0;
  flex-shrink: 0;
}

.contact-page .mailform-wrap form#mail_form dl dt span.optional {
  display: none;
}

.contact-page .mailform-wrap .form-check {
  gap: 8px;
}

.contact-page .mailform-wrap .form-check__label {
  font-size: 0.8125rem;
}

.contact-page .mailform-wrap form#mail_form p#form_submit {
  margin-top: 12px;
}

.contact-page .mailform-wrap form#mail_form input#form_submit_button {
  min-width: 200px;
  height: 40px;
  font-size: 0.875rem;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 56px;
  align-items: start;
}
.contact-sidebar {
  position: sticky;
  top: 80px;
}
.assurance-panel {
  background: var(--c-dark);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
}
.assurance-panel__title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-text-light);
  margin-bottom: 16px;
}
.assurance-panel__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.assurance-panel__item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.8375rem;
  color: var(--c-text-light-sub);
  line-height: 1.65;
}
.assurance-panel__check {
  color: var(--c-red-2);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}
.form-success {
  display: none;
  background: #ECFDF5;
  border: 1px solid #6EE7B7;
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 24px;
}
.form-success__title {
  font-size: 1rem;
  font-weight: 700;
  color: #065F46;
  margin-bottom: 6px;
}
.form-success__desc {
  font-size: 0.875rem;
  color: #047857;
}

/* Mailform (contactform-sample integration) */
.mailform-wrap {
  max-width: 100%;
}

.mailform-wrap form#mail_form {
  margin: 0;
  padding: 0;
}

.mailform-wrap form#mail_form dl {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
}

.mailform-wrap form#mail_form dl dt {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  float: none;
  clear: none;
  width: auto;
  padding: 0;
  margin: 0 0 4px;
  background: none;
  border: none;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
}

.mailform-wrap form#mail_form dl dt span.required,
.mailform-wrap form#mail_form dl dt span.optional {
  float: none;
  order: 0;
  margin-left: 0;
  flex-shrink: 0;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
  padding: 1px 6px;
  border-radius: 3px;
  border: none;
}

.mailform-wrap form#mail_form dl dt span.required {
  background: var(--c-red);
  color: #fff;
}

.mailform-wrap form#mail_form dl dt span.optional {
  background: var(--c-border-dark);
  color: var(--c-text-muted);
}

.mailform-wrap form#mail_form dl dd {
  float: none;
  width: auto;
  padding: 0;
  margin: 0 0 12px;
  border: none;
}

.mailform-wrap form#mail_form dl dd:last-child {
  margin-bottom: 0;
}

.mailform-wrap form#mail_form input[type="text"],
.mailform-wrap form#mail_form input[type="tel"],
.mailform-wrap form#mail_form input[type="email"],
.mailform-wrap form#mail_form input[type="url"],
.mailform-wrap form#mail_form select,
.mailform-wrap form#mail_form textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.9375rem;
  font-family: var(--font-base);
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-border-dark);
  border-radius: var(--radius-s);
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

.mailform-wrap form#mail_form select {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 40px;
}

.mailform-wrap form#mail_form input:focus,
.mailform-wrap form#mail_form select:focus,
.mailform-wrap form#mail_form textarea:focus {
  outline: none;
  border-color: var(--c-slate);
  box-shadow: 0 0 0 3px rgba(71,85,105,0.1);
}

.mailform-wrap form#mail_form textarea {
  min-height: 140px;
  resize: vertical;
  line-height: 1.7;
}

.mailform-wrap .mailform-hint {
  display: block;
  margin-top: 6px;
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  line-height: 1.6;
}

.mailform-wrap form#mail_form dl dd span.error_blank,
.mailform-wrap form#mail_form dl dd span.error_format,
.mailform-wrap form#mail_form dl dd span.error_match {
  display: block;
  margin-top: 6px;
  font-size: 0.8125rem;
  color: var(--c-red);
}

.mailform-wrap form#mail_form p#form_submit {
  margin: 32px 0 0;
  text-align: center;
}

.mailform-wrap form#mail_form input#form_submit_button,
.mailform-wrap div#confirm_field input#confirm_submit_button,
.mailform-wrap div#confirm_field input#confirm_cancel_button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 220px;
  height: 48px;
  padding: 0 24px;
  font-size: 0.9375rem;
  font-weight: 700;
  font-family: var(--font-base);
  border: none;
  border-radius: var(--radius-s);
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  -webkit-appearance: none;
}

.mailform-wrap form#mail_form input#form_submit_button,
.mailform-wrap div#confirm_field input#confirm_submit_button {
  background: var(--c-red);
  color: #fff;
}

.mailform-wrap form#mail_form input#form_submit_button:hover,
.mailform-wrap div#confirm_field input#confirm_submit_button:hover {
  background: var(--c-red-2);
}

.mailform-wrap div#confirm_field input#confirm_cancel_button {
  background: #fff;
  color: var(--c-text);
  border: 1px solid var(--c-border-dark);
}

.mailform-wrap div#confirm_field {
  display: none;
  margin-top: 8px;
  padding: 28px;
  background: var(--c-light-2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.mailform-wrap div#confirm_field h2 {
  margin: 0 0 24px;
  font-size: 1.125rem;
  font-weight: 700;
  text-align: center;
  color: var(--c-text);
}

.mailform-wrap div#confirm_field dl {
  margin: 0 0 24px;
}

.mailform-wrap div#confirm_field dl dt {
  float: none;
  width: auto;
  padding: 12px 0 4px;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text-muted);
  text-align: left;
  border-top: 1px solid var(--c-border);
}

.mailform-wrap div#confirm_field dl dd {
  float: none;
  width: auto;
  padding: 0 0 12px;
  font-size: 0.9375rem;
  color: var(--c-text);
  line-height: 1.7;
  border: none;
}

.mailform-wrap div#confirm_field p#confirm_submit {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--c-border);
  text-align: center;
}

.mailform-wrap .loading-layer {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15, 23, 42, 0.55);
}

.mailform-wrap span.loading {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 4px solid rgba(255,255,255,0.25);
  border-left-color: #fff;
  animation: mailform-spin 0.9s linear infinite;
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -24px 0 0 -24px;
}

@keyframes mailform-spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 767px) {
  .mailform-wrap form#mail_form input#form_submit_button,
  .mailform-wrap div#confirm_field input#confirm_submit_button,
  .mailform-wrap div#confirm_field input#confirm_cancel_button {
    width: 100%;
  }
}

@media (max-width: 767px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .contact-sidebar {
    position: static;
  }
}

/* ================================================
   PAGE: お知らせ一覧 (news)
   ================================================ */
.news-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.news-filter__btn {
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--c-border);
  background: #fff;
  font-size: 0.8125rem;
  color: var(--c-text-sub);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}
.news-filter__btn:hover,
.news-filter__btn--active {
  background: var(--c-dark);
  border-color: var(--c-dark);
  color: #fff;
}
.news-list {
  border-top: 1px solid var(--c-border);
}
.news-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--c-border);
  text-decoration: none;
  color: var(--c-text);
  transition: background 0.15s;
}
.news-item:hover .news-item__title {
  color: var(--c-red);
  text-decoration: underline;
}
.news-item__date {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  width: 90px;
}
.news-item__tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
  flex-shrink: 0;
  width: 100px;
  text-align: center;
}
.news-item__tag--seminar {
  background: #EEF2FF;
  color: #4F46E5;
}
.news-item__tag--service {
  background: #FEF3C7;
  color: #92400E;
}
.news-item__tag--notice {
  background: var(--c-light-2);
  color: var(--c-text-sub);
}
.news-item__tag--media {
  background: #F0FDF4;
  color: #166534;
}
.news-item__title {
  font-size: 0.9375rem;
  line-height: 1.55;
  flex: 1;
}
.news-item__new {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-red);
  margin-left: 6px;
  vertical-align: middle;
}
@media (max-width: 767px) {
  .news-item {
    flex-wrap: wrap;
    gap: 8px;
  }
  .news-item__date {
    width: auto;
  }
  .news-item__title {
    width: 100%;
    flex: unset;
  }
}

/* ================================================
   PAGE: サービス詳細 - COBOL・レガシー (service-legacy-cobol)
   ================================================ */
.risk-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.risk-card {
  background: var(--c-dark-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 3px solid var(--c-red-2);
  border-radius: var(--radius);
  padding: 20px;
}
.risk-card__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #FCA5A5;
  margin-bottom: 8px;
}
.risk-card__desc {
  font-size: 0.8375rem;
  color: var(--c-text-light-sub);
  line-height: 1.7;
}
.step-flow {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--c-border);
}
.step-item:last-child {
  border-bottom: none;
}
.step-item__phase {
  background: var(--c-dark);
  border-radius: 6px;
  padding: 12px 8px;
  text-align: center;
}
.step-item__phase-num {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--c-red-2);
  line-height: 1;
}
.step-item__phase-label {
  font-size: 0.65rem;
  color: var(--c-text-light-sub);
  margin-top: 4px;
  letter-spacing: 0.06em;
}
.step-item__body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}
.step-item__body p {
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.7;
}
.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.deliverable-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.deliverable-item__icon {
  width: 36px;
  height: 36px;
  background: var(--c-light-2);
  border-radius: 6px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.deliverable-item__icon svg {
  width: 20px;
  height: 20px;
  color: var(--c-red);
}
.deliverable-item__title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 2px;
}
.deliverable-item__desc {
  font-size: 0.8125rem;
  color: var(--c-text-sub);
  line-height: 1.5;
}
.roadmap {
  display: flex;
  gap: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.roadmap__phase {
  flex: 1;
  padding: 20px 16px;
  border-right: 1px solid var(--c-border);
  background: #fff;
}
.roadmap__phase:last-child {
  border-right: none;
}
.roadmap__phase--current {
  background: var(--c-dark);
}
.roadmap__phase-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.roadmap__phase--current .roadmap__phase-label {
  color: #FCA5A5;
}
.roadmap__phase-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 8px;
}
.roadmap__phase--current .roadmap__phase-title {
  color: var(--c-text-light);
}
.roadmap__phase-items {
  font-size: 0.8rem;
  color: var(--c-text-sub);
  line-height: 1.7;
}
.roadmap__phase--current .roadmap__phase-items {
  color: var(--c-text-light-sub);
}
@media (max-width: 767px) {
  .risk-card-grid {
    grid-template-columns: 1fr;
  }
  .roadmap {
    flex-direction: column;
  }
  .roadmap__phase {
    border-right: none;
    border-bottom: 1px solid var(--c-border);
  }
  .deliverable-grid {
    grid-template-columns: 1fr;
  }
}

/* ================================================
   PAGE: サービス詳細 - 仕様整理・AIリバース (service-specification-recovery)
   ================================================ */
.before-after {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.ba-col {
  background: var(--c-dark-2);
  border-radius: 6px;
  padding: 16px;
}
.ba-col--before {
  border-left: 3px solid rgba(127,29,29,0.5);
}
.ba-col--after {
  border-left: 3px solid rgba(6,95,70,0.5);
}
.ba-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.ba-label--before {
  color: #FCA5A5;
}
.ba-label--after {
  color: #6EE7B7;
}
.ba-items {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ba-item {
  font-size: 0.8rem;
  color: var(--c-text-light-sub);
}
.ba-arrow {
  text-align: center;
  color: var(--c-red-2);
  font-size: 1.5rem;
}
.output-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.output-item {
  border: 1px solid var(--c-border);
  border-radius: 6px;
  overflow: hidden;
}
.output-item__head {
  padding: 14px 16px;
  background: var(--c-dark);
}
.output-item__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text-light);
}
.output-item__body {
  padding: 14px 16px;
  background: #fff;
}
.output-item__desc {
  font-size: 0.8375rem;
  color: var(--c-text-sub);
  line-height: 1.65;
}
.ai-note {
  background: var(--c-light-2);
  border: 1px solid var(--c-border);
  border-left: 4px solid var(--c-amber);
  border-radius: 6px;
  padding: 16px 20px;
  font-size: 0.875rem;
  color: var(--c-text-sub);
  line-height: 1.7;
}
@media (max-width: 767px) {
  .before-after {
    grid-template-columns: 1fr;
  }
  .ba-arrow {
    display: none;
  }
  .output-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------------------------------------------------
   Seminar landing page
   --------------------------------------------------- */
body.single-seminar {
  padding-bottom: 120px;
  --seminar-sticky-offset: 88px;
}
body.admin-bar.single-seminar {
  --seminar-sticky-offset: 120px;
}
@media screen and (max-width: 782px) {
  body.admin-bar.single-seminar {
    --seminar-sticky-offset: 134px;
  }
}
@media (min-width: 900px) {
  body.single-seminar {
    padding-bottom: 0;
  }
}
.container--wide {
  max-width: 96rem;
}
.seminar-landing {
  padding: 40px 0 0;
}
.seminar-landing__grid {
  display: grid;
  gap: 40px;
  overflow: visible;
}
@media (min-width: 900px) {
  .seminar-landing__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: start;
  }
}
.seminar-landing__sidebar {
  overflow: visible;
}
@media (min-width: 900px) {
  .seminar-landing__sidebar {
    align-self: start;
    position: sticky;
    top: var(--seminar-sticky-offset);
    z-index: 20;
  }
}
.seminar-landing__sidebar-inner {
  position: static;
}
@media (min-width: 900px) {
  .seminar-landing__sidebar-inner {
    max-height: calc(100vh - var(--seminar-sticky-offset) - 24px);
    overflow-y: auto;
  }
}
.seminar-landing__main {
  display: grid;
  gap: 56px;
}
.seminar-landing__section {
  scroll-margin-top: 96px;
}
.seminar-landing__heading {
  margin: 0 0 24px;
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: var(--c-text);
}
.seminar-landing__hero {
  margin: 0;
}
.seminar-landing__hero-img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--c-border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  object-fit: cover;
}
.seminar-landing__cards {
  display: grid;
  gap: 20px;
}
.seminar-landing__cards--2 {
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .seminar-landing__cards--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.seminar-landing__card {
  border: 1px solid var(--c-border);
  border-radius: 16px;
  background: #fff;
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.seminar-landing__card-icon {
  width: 32px;
  height: 32px;
  color: var(--c-red-2);
  margin-bottom: 16px;
}
.seminar-landing__card-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.7;
}
.seminar-landing__card-text {
  margin: 8px 0 0;
  font-size: 1rem;
  line-height: 2;
  color: var(--c-text-sub);
}
.seminar-landing__panel {
  background: var(--c-light);
  border-radius: 24px;
  padding: 28px 24px;
}
@media (min-width: 768px) {
  .seminar-landing__panel {
    padding: 40px;
  }
}
.seminar-landing__panel--border {
  border: 1px solid var(--c-border);
}
.seminar-landing__lead {
  margin: 0 0 20px;
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  line-height: 2.1;
  font-weight: 700;
  color: var(--c-red-2);
}
.seminar-landing__text {
  margin: 0 0 20px;
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  line-height: 2.1;
  color: var(--c-text-sub);
}
.seminar-landing__text:last-child {
  margin-bottom: 0;
}
.seminar-landing__note {
  margin: 24px 0 0;
  padding: 16px 20px;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  background: #fff;
  font-size: 1rem;
  line-height: 2;
  color: var(--c-text-sub);
}
.seminar-landing__box {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid #BFDBFE;
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.seminar-landing__box-title {
  margin: 0 0 16px;
  font-size: 1.125rem;
  font-weight: 700;
}
.seminar-landing__list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.seminar-landing__list li {
  position: relative;
  padding-left: 1.2em;
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  line-height: 2.1;
  color: var(--c-text-sub);
}
.seminar-landing__list li + li {
  margin-top: 8px;
}
.seminar-landing__list li::before {
  content: "・";
  position: absolute;
  left: 0;
}
.seminar-landing__stack {
  display: grid;
  gap: 16px;
}
.seminar-landing__speaker {
  display: grid;
  gap: 24px;
}
@media (min-width: 768px) {
  .seminar-landing__speaker {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
  }
}
.seminar-landing__speaker-photo img {
  display: block;
  width: 100%;
  max-width: 260px;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  object-fit: cover;
}
.seminar-landing__speaker-role {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-red-2);
}
.seminar-landing__speaker-name {
  margin: 4px 0 0;
  font-size: 1.5rem;
  font-weight: 700;
}
.seminar-landing__summary {
  border: 1px solid var(--c-border);
  border-radius: 16px;
  background: #fff;
  padding: 24px;
  box-shadow: var(--shadow-md);
}
.seminar-landing__summary-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}
.seminar-landing__summary-list {
  margin: 20px 0 0;
}
.seminar-landing__summary-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--c-light-2);
}
.seminar-landing__summary-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.seminar-landing__summary-item dt {
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-text);
}
.seminar-landing__summary-item dd {
  margin: 4px 0 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text-sub);
}
.seminar-landing__archive-note {
  margin: 16px 0 0;
  padding: 12px 16px;
  border: 1px solid #FCD34D;
  border-radius: 12px;
  background: #FFFBEB;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.8;
  color: var(--c-amber);
}
.seminar-landing__cta,
.seminar-landing__cta--lg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 20px;
  border-radius: 12px;
  background: var(--c-red-2);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.15s;
}
.seminar-landing__cta {
  padding: 12px 20px;
  font-size: 1.125rem;
}
.seminar-landing__cta--lg {
  padding: 16px 24px;
  font-size: 1.25rem;
}
.seminar-landing__cta:hover,
.seminar-landing__cta--lg:hover {
  background: var(--c-red-hover);
  color: #fff;
}
.seminar-landing__closed-badge {
  margin-top: 20px;
  padding: 12px 20px;
  border: 1px solid var(--c-border-dark);
  border-radius: 12px;
  background: var(--c-light-2);
  text-align: center;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-text-muted);
}
.seminar-landing__bottom-cta {
  display: none;
  margin-top: 56px;
  background: var(--c-dark);
}
@media (min-width: 900px) {
  .seminar-landing__bottom-cta {
    display: block;
  }
}
.seminar-landing__bottom-inner {
  padding: 56px 0;
  text-align: center;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 16px;
  background: rgba(255,255,255,0.04);
}
.seminar-landing__bottom-title {
  margin: 0;
  font-size: clamp(1.375rem, 2.5vw, 1.75rem);
  font-weight: 700;
  color: #fff;
}
.seminar-landing__bottom-note {
  max-width: 48rem;
  margin: 16px auto 0;
  font-size: 0.9375rem;
  font-weight: 700;
  line-height: 1.8;
  color: #FCD34D;
}
.seminar-landing__bottom-inner .seminar-landing__cta--lg {
  width: auto;
  min-width: 280px;
  margin-top: 32px;
}
.seminar-landing__mobile-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  padding: 12px 16px;
  border-top: 1px solid var(--c-border);
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
}
@media (min-width: 900px) {
  .seminar-landing__mobile-cta {
    display: none;
  }
}
.seminar-landing__mobile-note {
  margin: 0 0 8px;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-amber);
}
.seminar-landing__mobile-cta.is-hidden {
  display: none;
}
.seminar-landing__back {
  margin: 48px 0 0;
  text-align: center;
}

/* ---------------------------------------------------
   Document download form page (LP)
   --------------------------------------------------- */
body.doc-form-page .notice-bar,
body.doc-form-page .site-header,
body.doc-form-page .site-footer,
body.doc-form-page .page-top,
body.doc-form-page .pagetop {
  display: none !important;
}

.doc-form-minihead {
  position: sticky;
  top: 0;
  z-index: 9999;
  background: #fff;
  border-bottom: 1px solid var(--c-border);
}
.doc-form-minihead .site-logo {
  display: flex;
  align-items: center;
  height: 52px;
  padding: 0 24px;
  max-width: 1120px;
  margin: 0 auto;
}
.doc-form-minihead .site-logo__img {
  height: 28px;
  width: auto;
}

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

.doc-dl {
  max-width: 1080px;
  margin: 40px auto 0;
  padding: 0 40px 64px;
  min-height: calc(100vh - 130px);
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
  color: var(--c-text);
  line-height: 1.8;
}

.doc-dl__title {
  font-size: clamp(1.375rem, 2.4vw, 2rem);
  font-weight: 800;
  line-height: 1.45;
  color: var(--c-text);
  margin: 0 0 20px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.doc-dl__hero-img-wrap {
  margin: 0 0 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--c-light-2);
}
.doc-dl__hero-img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.doc-dl__subtitle {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-text);
  margin: 0 0 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--c-red);
}

.doc-dl__lead {
  font-size: 0.8125rem;
  line-height: 1.9;
  color: var(--c-text-sub);
  margin: 0 0 12px;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.doc-dl__other-link {
  margin: 20px 0 0;
  font-size: 0.8125rem;
}
.doc-dl__other-link a {
  color: var(--c-red);
  font-weight: 700;
  text-decoration: underline;
}
.doc-dl__other-link a:hover {
  text-decoration: none;
}

.doc-dl__card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-s);
  padding: 24px 20px 20px;
  position: sticky;
  top: 68px;
}

.doc-dl__card-head {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--c-text);
  margin: 0 0 16px;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--c-border);
  line-height: 1.5;
}

.doc-dl__card .fluentform-wrap .fluentform {
  margin: 0;
}
.doc-dl__card .fluentform-wrap .ff-el-group {
  margin-bottom: 14px;
}
.doc-dl__card .fluentform-wrap .ff-btn-submit {
  width: 100%;
  margin-top: 8px;
}

.doc-dl__card .mailform-wrap form#mail_form {
  margin: 0;
}

.doc-dl__card .mailform-wrap form#mail_form dl {
  margin: 0;
}

.doc-dl__card .mailform-wrap form#mail_form dl dt {
  font-size: 0.8125rem;
  margin-bottom: 4px;
}

.doc-dl__card .mailform-wrap form#mail_form dl dd {
  margin-bottom: 12px;
}

.doc-dl__card .mailform-wrap form#mail_form input[type="text"],
.doc-dl__card .mailform-wrap form#mail_form input[type="tel"],
.doc-dl__card .mailform-wrap form#mail_form input[type="email"] {
  font-size: 0.875rem;
  padding: 10px 12px;
}

.doc-dl__card .mailform-wrap .form-privacy {
  font-size: 0.75rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

.doc-dl__card .mailform-wrap form#mail_form dl dt span.required,
.doc-dl__card .mailform-wrap form#mail_form dl dt span.optional {
  font-size: 0.65rem;
  margin-left: 6px;
}

.doc-dl__card .mailform-wrap form#mail_form p#form_submit {
  margin-top: 4px;
}

.doc-dl__card .mailform-wrap form#mail_form input#form_submit_button {
  width: 100%;
  font-size: 0.875rem;
  padding: 12px 16px;
}

.doc-dl__form-empty {
  font-size: 0.8125rem;
  color: var(--c-text-muted);
}

.doc-form-footer {
  border-top: 1px solid var(--c-border);
  background: var(--c-light-2);
  padding: 28px 0;
}
.doc-form-footer__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.doc-form-footer__logo .site-logo__img {
  height: 26px;
  width: auto;
  opacity: 0.75;
}
.doc-form-footer__copy {
  font-size: 0.6875rem;
  color: var(--c-text-muted);
  margin: 0;
}

@media (max-width: 900px) {
  .doc-dl {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 24px;
    padding: 0 24px 48px;
    min-height: auto;
  }
  .doc-dl__card {
    position: static;
  }
}

@media (max-width: 600px) {
  .doc-dl {
    padding: 0 16px 36px;
  }
  .doc-dl__card {
    padding: 18px 16px 16px;
  }
  .doc-form-footer__inner {
    flex-direction: column;
    text-align: center;
  }
}