/* ==========================================================================
   INDEX.CSS - SECTION-BY-SECTION ORGANIZED STYLESHEET
   ========================================================================== */

/* ==========================================================================
   01. HERO SECTION (FV / ファーストビュー)
   ========================================================================== */
.hero-wrapper {
  position: relative;
  margin-top: 62px;
  min-height: calc(100vh - 62px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  overflow: hidden;
  text-align: center;
  box-sizing: border-box;
}

.hero-image-bg {
  position: absolute;
  inset: 0;
  background-image: url('images/hero_new_v3.webp');
  background-size: cover;
  background-position: center center;
  z-index: 2;
}

.hero-wrapper::after {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 4;
  max-width: 1000px;
  padding: 0 40px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: var(--fs-hero-title);
  margin: 0 auto 24px;
  line-height: 1.2;
  letter-spacing: 0.08em;
  font-weight: 800;
  text-align: center;
  color: var(--text-dark);
  display: block;
  width: 100%;
}

.hero-char-line {
  display: block;
  text-align: center;
  width: 100%;
  margin: 0 auto;
}

#hero-line-1,
#hero-line-2 {
  font-size: calc(1em - 4px);
}

#hero-line-3 {
  font-size: calc(1em + 8px);
}

.hero-content h1 .hc {
  display: inline-block;
  opacity: 0;
  animation: hero-fade-in 1.0s ease forwards;
  animation-delay: calc(0.4s + var(--ci) * 0.08s);
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: var(--fs-hero-sub);
  font-weight: 700;
  color: #000000;
  letter-spacing: 0.08em;
  margin: 0 auto 88px;
  line-height: 1.4;
  opacity: 0;
  animation: hero-fade-in 1.2s ease 1.6s forwards;
  text-align: center;
  width: 100%;
}

.hero-content .hero-description {
  font-size: var(--fs-lead);
  line-height: 1.9;
  color: #1e293b;
  max-width: 860px;
  margin: 0 auto 48px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-align: center;
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.9), 0 1px 3px rgba(255, 255, 255, 0.7);
  opacity: 0;
  animation: hero-fade-in 1.2s ease 2.0s forwards;
}

.hero-content .hero-description b {
  color: var(--accent-gold-heavy);
  font-weight: 700;
}

.hero-btn-container {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 30px;
  opacity: 0;
  animation: hero-fade-in 1.2s ease 2.3s forwards;
  position: relative;
  z-index: 5;
}

.hero-target-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--accent-gold);
  background-color: rgba(32, 42, 58, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--accent-gold);
  border-radius: 0;
  padding: 10px 24px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(15, 20, 28, 0.2);
  transition: all var(--transition-fast);
  z-index: 2;
  box-sizing: border-box;
}

.hero-target-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  transition: transform var(--transition-fast);
}

.hero-target-btn:hover {
  color: var(--bg-dark);
  background-color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.hero-target-btn:hover svg {
  transform: translateX(4px);
}


/* ==========================================================================
   02. CONCEPT COMMON (コンセプト共通スタイル)
   ========================================================================== */
.concept-container {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}

.concept-row {
  display: block;
  position: relative;
  z-index: 2;
  margin-bottom: 90px;
}

.concept-row:last-child {
  margin-bottom: 0;
}

.concept-content {
  display: flex;
  flex-direction: column;
  text-align: left;
  max-width: 860px;
  margin: 0 auto;
}

.concept-row.concept-row-split .concept-content {
  max-width: 100%;
}

.concept-text {
  font-size: clamp(14px, 1.8vw, 15px);
  line-height: 1.9;
  color: var(--text-dark);
}

.concept-text b {
  color: var(--text-dark);
}

.concept-text .zeiiku-highlight-inline,
.zeiiku-highlight-inline {
  font-size: clamp(1.15rem, 5.4vw, 3.2rem);
  font-family: var(--font-serif);
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: 0.05em;
  display: inline-block;
  vertical-align: middle;
  margin: 0 4px;
  line-height: 1.25;
  position: relative;
  z-index: 1;
  padding: 0 4px;
  white-space: nowrap;
}

.concept-text .zeiiku-highlight-inline::before,
.zeiiku-highlight-inline::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 6%;
  width: 100%;
  height: 48%;
  background: linear-gradient(90deg, #dfca9f 0%, #b5924a 100%);
  opacity: 0.85;
  z-index: -1;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 2px;
}

.reveal.in .zeiiku-highlight-inline::before {
  transform: scaleX(1);
  transition-delay: 0.25s;
}

.concept-diagram-wrapper {
  margin-top: 36px;
  width: 100%;
  max-width: 860px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(181, 146, 74, 0.25);
  background-color: #ffffff;
  cursor: zoom-in;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.concept-diagram-wrapper:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.14);
  border-color: rgba(181, 146, 74, 0.6);
}

.concept-diagram-img {
  width: 100%;
  height: auto;
  display: block;
}

.concept-text-emphasis {
  font-size: 1.2em;
  font-weight: 700;
  color: var(--text-dark);
}

.concept-text-emphasis-lg {
  font-size: var(--fs-h3);
  display: inline-block;
  margin: 4px 0;
  line-height: 1.4;
}

.gold-text,
.concept-text b.gold-text,
.concept-text .gold-text {
  color: var(--accent-gold-heavy);
}

/* ==========================================================================
   03. 01｜なぜ、今「税育」が必要なのか。 (#concept-story)
   ========================================================================== */
#concept-story {
  position: relative;
  overflow: hidden;
  padding: 100px 0;
  background-color: var(--bg-secondary);
}

.concept-split-body {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: start;
  margin-top: 8px;
}

.concept-split-text {
  display: flex;
  flex-direction: column;
}

.concept-split-diagram {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.concept-split-diagram .growth-cycle-diagram {
  margin: 0 auto;
}

.growth-cards-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 36px auto;
  max-width: 820px;
  width: 100%;
}

.growth-card-item {
  flex: 1;
  background: var(--card-bg);
  border-radius: var(--card-radius);
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
  text-align: center;
}

.growth-card-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--card-border-hover);
}

.growth-card-img-wrap {
  width: 100%;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  background: #f1f5f9;
}

.growth-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.growth-card-item:hover .growth-card-img {
  transform: scale(1.06);
}

.growth-card-label {
  padding: 14px 8px;
  font-family: var(--font-serif);
  font-size: var(--fs-lead);
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 0.04em;
  background: #ffffff;
}

.growth-card-item.highlight {
  border-color: rgba(181, 146, 74, 0.6);
}

.growth-card-item.highlight .growth-card-label {
  color: var(--accent-gold-heavy);
}

.growth-card-arrow {
  color: var(--accent-gold-heavy);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.growth-card-arrow svg {
  width: 24px;
  height: 24px;
}

.growth-cycle-diagram {
  margin: 36px auto 28px;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  position: relative;
  text-align: center;
  max-width: 580px;
  width: 100%;
}

.growth-circle-wrapper {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.growth-circle-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.growth-cycle-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  width: 150px;
  pointer-events: none;
  z-index: 1;
}

.growth-cycle-center-text {
  font-family: var(--font-sans);
  font-size: var(--fs-lead);
  font-weight: 700;
  color: var(--accent-gold-heavy);
  line-height: 1.5;
  letter-spacing: 0.04em;
  text-align: center;
}

.growth-cycle-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 150px;
  z-index: 2;
  transition: transform var(--transition-fast);
}

.growth-step-text {
  font-size: clamp(13px, 1.4vw, 15px);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.25;
  text-align: center;
  margin-bottom: 8px;
  white-space: nowrap;
}

.growth-step-circle {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: #ffffff;
  border: 2.5px solid rgba(181, 146, 74, 0.45);
  box-shadow: 0 8px 24px rgba(181, 146, 74, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold-heavy);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  box-sizing: border-box;
  padding: 0;
}

.growth-step-circle svg {
  width: 38px;
  height: 38px;
  display: block;
  margin: auto;
}

.growth-cycle-node:hover .growth-step-circle {
  border-color: var(--accent-gold);
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(181, 146, 74, 0.35);
  transform: scale(1.08);
  color: var(--accent-gold);
}

.growth-cycle-node.node-1 {
  top: 13%;
  left: 50%;
}

.growth-cycle-node.node-2 {
  top: 31.5%;
  left: 82%;
}

.growth-cycle-node.node-3 {
  top: 68.5%;
  left: 82%;
}

.growth-cycle-node.node-4 {
  top: 87%;
  left: 50%;
}

.growth-cycle-node.node-5 {
  top: 68.5%;
  left: 18%;
}

.growth-cycle-node.node-6 {
  top: 29.5%;
  left: 18%;
}

.definition-text-emphasis {
  font-size: 1.2em;
  font-weight: 700;
  display: inline-block;
}

/* ==========================================================================
   04. 02｜「税育」とは何か。 (#concept-what)
   ========================================================================== */
/* ※ CONCEPT COMMON スタイルを適用 */

/* ==========================================================================
   05. 03｜なぜ、税理士なのか。 (#concept-who)
   ========================================================================== */
.section-split {
  display: flex;
  align-items: center;
  width: 100%;
  position: relative;
  overflow: hidden;
  background-color: var(--bg-secondary);
}

.split-section-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 20px 6% 80px 8%;
  box-sizing: border-box;
}

.split-section-inner {
  max-width: 580px;
  width: 100%;
  text-align: left;
}

.split-section-media {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.split-section-img {
  width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   06. 04｜税理士5.0という時代へ。 (#zeirishi5)
   ========================================================================== */
.zeirishi-flow-container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.zeirishi-flow-top-grid {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
}

.zeirishi-flow-top-grid .zeirishi-flow-card {
  flex: 1;
}

.zeirishi-flow-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid rgba(181, 146, 74, 0.22);
  padding: 18px 12px 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-sizing: border-box;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.zeirishi-flow-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(181, 146, 74, 0.16);
  border-color: var(--accent-gold);
}

.z-flow-badge {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
  display: block;
  letter-spacing: 0.04em;
}

.z-flow-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(181, 146, 74, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--accent-gold-heavy);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.zeirishi-flow-card:hover .z-flow-icon-wrap {
  transform: scale(1.1);
  background: rgba(181, 146, 74, 0.18);
}

.z-flow-icon {
  width: 26px;
  height: 26px;
}

.z-flow-tag {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.z-flow-desc {
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-dark);
  margin-top: 4px;
  margin-bottom: 0;
}

.z-flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(181, 146, 74, 0.5);
  flex-shrink: 0;
  padding: 0 2px;
}

.z-flow-arrow svg {
  width: 16px;
  height: 16px;
}

.z-flow-down-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold-heavy);
  padding: 14px 0 12px;
}

.z-flow-down-arrow svg {
  width: 24px;
  height: 24px;
}

.z-flow-center-card {
  width: 100%;
  display: flex;
  justify-content: center;
}

.z-flow-card-next {
  max-width: 520px;
  width: 100%;
  padding: 28px 30px 24px;
  background: linear-gradient(135deg, #c39d52 0%, #a47e38 50%, #8c6827 100%);
  border: 1px solid rgba(255, 255, 255, 0.45);
  box-shadow: 0 12px 36px rgba(140, 104, 39, 0.28), 0 4px 12px rgba(0, 0, 0, 0.08), inset 0 1px 1px rgba(255, 255, 255, 0.5);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.z-flow-card-next::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(60deg, transparent 30%, rgba(255, 255, 255, 0.18) 50%, transparent 70%);
  pointer-events: none;
  transition: transform 0.8s ease;
  transform: translateX(-100%);
}

.z-flow-card-next:hover::before {
  transform: translateX(50%);
}

.z-flow-card-next:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 44px rgba(140, 104, 39, 0.38), 0 6px 16px rgba(0, 0, 0, 0.12), inset 0 1px 2px rgba(255, 255, 255, 0.6);
  border-color: rgba(255, 255, 255, 0.7);
}

.z-flow-card-next .z-flow-badge {
  font-size: clamp(22px, 3vw, 26px);
  font-weight: 900;
  margin-bottom: 6px;
  color: #ffffff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
  letter-spacing: 0.06em;
}

.z-flow-question-big {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 800;
  line-height: 1;
  color: #ffffff;
  margin: 4px 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  transition: transform var(--transition-fast);
}

.zeirishi-flow-card:hover .z-flow-question-big {
  transform: scale(1.18);
}

.z-flow-card-next .z-flow-desc {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 700;
  line-height: 1.6;
  color: #ffffff;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
  letter-spacing: 0.03em;
}

.z-flow-badge-gold {
  color: #ffffff;
}

/* ==========================================================================
   07. 05｜日本税育協議会がつくるもの (#action-pillars)
   ========================================================================== */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.pillar-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: var(--card-shadow);
}

.pillar-card:hover {
  transform: translateY(-5px);
  border-color: var(--card-border-hover);
  box-shadow: var(--card-shadow-hover);
}

.pillar-media {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
  margin: 0;
  border-top-left-radius: inherit;
  border-top-right-radius: inherit;
}

.pillar-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center center;
  transition: transform var(--transition-smooth);
}

#pillar-learn .pillar-img {
  object-position: center 40%;
}

#pillar-meet .pillar-img {
  object-position: center center;
}

#pillar-challenge .pillar-img {
  object-position: center center;
}

.pillar-card:hover .pillar-img {
  transform: scale(1.03);
}

.pillar-media-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 25, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: background var(--transition-smooth);
}

.pillar-card:hover .pillar-media-overlay {
  background: rgba(10, 15, 25, 0.28);
}

.pillar-overlay-title {
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.8), 0 0 20px rgba(181, 146, 74, 0.35);
  position: relative;
  display: inline-block;
}

.pillar-overlay-title::after {
  display: none;
}

.pillar-body {
  padding: 32px 24px;
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.pillar-lead-text {
  font-size: 14.5px;
  color: var(--text-dark-muted);
  line-height: 1.9;
  text-align: left;
  margin-bottom: 28px;
  width: 100%;
  letter-spacing: 0.02em;
  min-height: 5.7em;
}

.pillar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  width: 100%;
}

.tag-card {
  background: #ffffff;
  border: 1px solid rgba(223, 202, 159, 0.2);
  border-radius: 12px;
  padding: 16px 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-sizing: border-box;
  width: calc(50% - 6px);
  min-width: 120px;
}

.tag-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(181, 146, 74, 0.06);
  border-color: var(--accent-gold);
}

.tag-card-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gold-heavy);
  margin-bottom: 8px;
  transition: transform 0.3s ease;
}

.tag-card:hover .tag-card-icon {
  transform: scale(1.08);
}

.tag-card-icon svg {
  width: 22px;
  height: 22px;
  stroke-width: 1.5;
}

.tag-card-content h4 {
  font-family: var(--font-serif);
  font-size: 14.5px;
  color: var(--text-dark);
  margin-bottom: 4px;
  font-weight: 600;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
}

.tag-card-content h4.tag-title-tight {
  font-feature-settings: "palt";
  letter-spacing: -0.065em;
  font-size: 13.5px;
  white-space: nowrap;
}

.tag-card-content p {
  font-family: var(--font-sans);
  font-size: 10.5px;
  color: var(--text-dark-muted);
  line-height: 1.5;
  margin: 0;
  overflow-wrap: break-word;
}

/* ==========================================================================
   08. 06｜活動紹介 (#activities)
   ========================================================================== */
.activities-grid {
  display: flex;
  flex-direction: column;
  gap: 50px;
  margin-top: 50px;
}

.activity-card {
  display: flex;
  align-items: stretch;
  background-color: var(--bg-primary);
  border: 1px solid var(--line-light);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-fast);
  width: 100%;
}

.activity-card:nth-child(even) {
  flex-direction: row-reverse;
}

.activity-img-wrapper {
  flex: 1;
  width: 50%;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.activity-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-fast);
}

.activity-card:hover .activity-card-img {
  transform: scale(1.05);
}

.activity-card-img.zoom-focus {
  transform: scale(1.12);
}

.activity-card:hover .activity-card-img.zoom-focus {
  transform: scale(1.18);
}

.activity-card-body {
  flex: 1;
  width: 50%;
  padding: 40px 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: left;
}

.bg-dark .activity-card {
  background-color: var(--bg-dark-card);
  border-color: var(--line-dark);
}

.activity-card:hover {
  border-color: var(--accent-gold);
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.bg-dark .activity-card:hover {
  box-shadow: var(--shadow-dark-lg);
}

.meetup-zoom-img {
  object-position: 60% center;
  animation: ken-burns-meetup 28s ease-in-out infinite alternate;
  transform-origin: 60% center;
  will-change: transform;
}

#act-meetup-wrapper {
  position: relative;
}

.activity-label {
  font-family: var(--font-num);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.activity-card h4 {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 16px;
}

.activity-card p {
  font-size: 14px;
  color: var(--text-dark-muted);
  line-height: 1.8;
}

.bg-dark .activity-card p {
  color: var(--text-light-muted);
}

/* ==========================================================================
   09. 07｜代表理事 挨拶 (#greeting)
   ========================================================================== */
#greeting {
  background-color: #ffffff;
  padding: 110px 0 100px;
}

#greeting .section-title {
  font-family: var(--font-serif);
  color: var(--text-dark);
  font-weight: 700;
  margin-bottom: 24px;
}

.greeting-body {
  max-width: 760px;
  margin: 60px auto 0;
  color: var(--text-dark);
  word-break: break-word;
}

.greeting-block {
  margin-bottom: 64px;
}

.greeting-block:last-of-type {
  margin-bottom: 48px;
}

.greeting-subhead {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.45;
  margin-bottom: 24px;
}

.greeting-subhead::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-gold-heavy), var(--accent-gold));
  margin-right: 10px;
  vertical-align: 0.05em;
  border-radius: 1px;
}

.greeting-text {
  font-size: 16px;
  line-height: 2.15;
  color: #334155;
  letter-spacing: 0.04em;
  text-align: left;
}

.greeting-sign {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid rgba(181, 146, 74, 0.25);
  text-align: right;
}

.greeting-sign-role {
  font-size: 14px;
  color: var(--text-dark-muted);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.greeting-sign-name {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: 0.1em;
}

/* ==========================================================================
   10. 08｜数字で見る日本税育協議会 (#numbers)
   ========================================================================== */
.numbers-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-top: 60px;
}

.number-card {
  text-align: center;
}

.number-value {
  font-family: var(--font-num);
  font-size: clamp(38px, 5vw, 56px);
  font-weight: 300;
  color: var(--accent-gold-heavy);
  line-height: 1.1;
  margin-bottom: 12px;
  display: flex;
  justify-content: center;
  align-items: baseline;
}

.bg-dark .number-value {
  color: var(--accent-gold-heavy);
}

.number-value .suffix {
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 600;
  color: var(--text-dark);
  margin-left: 4px;
  font-family: var(--font-sans);
}

.number-label {
  font-size: 12.5px;
  color: var(--text-dark-muted);
  line-height: 1.6;
}

.bg-dark .number-label {
  color: var(--text-light-muted);
}

/* ==========================================================================
   11. 09｜参加者・役員紹介 (#people)
   ========================================================================== */
.people-group {
  margin-top: 80px;
}

.people-group:first-of-type {
  margin-top: 0;
}

.people-group-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 40px;
  text-align: left;
  border-bottom: 1px solid var(--line-light);
  padding-bottom: 16px;
}

.bg-dark .people-group-title {
  border-bottom-color: var(--line-dark);
}

.founders-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 24px;
}

.founder-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.founder-img-wrapper {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  border: 1px solid rgba(181, 146, 74, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  background-color: var(--bg-secondary);
  position: relative;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.founder-card:hover .founder-img-wrapper {
  transform: translateY(-4px);
  border-color: var(--accent-gold-heavy);
  box-shadow: 0 12px 30px rgba(181, 146, 74, 0.2);
}

.founder-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.founder-card:hover .founder-img {
  transform: scale(1.08);
}

.founder-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.founder-card h4 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.founder-role {
  font-family: var(--font-sans);
  font-size: 11.5px;
  color: var(--text-dark-muted);
  white-space: normal;
  word-break: break-all;
}

.bg-dark .founder-img-wrapper {
  border-color: var(--line-dark);
  background-color: var(--bg-dark-card);
}

.bg-dark .founder-card h4 {
  color: var(--text-light);
}

.bg-dark .founder-role {
  color: var(--text-light-muted);
}

#founder-6 .founder-img {
  transform: scale(1.35);
}

#founder-6:hover .founder-img {
  transform: scale(1.43);
}

#founder-6 .founder-role {
  letter-spacing: -0.05em;
}

#founder-15 .founder-role {
  letter-spacing: -0.08em;
}

#founder-3 .founder-img {
  transform: scale(1.25) rotate(-15deg);
}

#founder-3:hover .founder-img {
  transform: scale(1.33) rotate(-15deg);
}

.members-intro {
  text-align: center;
  margin-top: 56px;
  margin-bottom: 24px;
}

.members-intro-text {
  font-family: var(--font-serif);
  font-size: var(--fs-lead);
  color: var(--text-dark);
  letter-spacing: 0.04em;
  font-weight: 600;
}

.members-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  gap: 20px;
  margin-top: 24px;
}

.member-tile {
  background-color: var(--bg-secondary);
  border: 1px solid var(--line-light);
  border-radius: 8px;
  padding: 24px 16px;
  text-align: center;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.bg-dark .member-tile {
  background-color: var(--bg-dark-card);
  border-color: var(--line-dark);
}

.member-tile:hover {
  border-color: var(--accent-gold);
  transform: translateY(-3px);
}

.member-tile h5 {
  font-size: 13.5px;
  font-weight: 500;
  margin-bottom: 0;
  width: 100%;
}

.partner-category {
  margin-bottom: 48px;
}

.partner-category:last-child {
  margin-bottom: 0;
}

.partner-category-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-gold-heavy);
  margin-bottom: 20px;
  text-align: center;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.partners-legend {
  display: grid;
  grid-template-columns: repeat(2, auto);
  justify-content: center;
  gap: 24px;
}

.partners-standard {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.partner-tile {
  background-color: var(--bg-primary);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  box-sizing: border-box;
  overflow: hidden;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-dark-muted);
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth), color var(--transition-smooth);
}

.partner-tile img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.bg-dark .partner-tile {
  background-color: var(--bg-dark-card);
  border-color: var(--line-dark);
  color: var(--text-light-muted);
}

.legend-tile {
  width: 280px;
  height: 90px;
  font-size: 14px;
  border-color: var(--accent-gold-glow);
  background-color: rgba(223, 202, 159, 0.03);
  box-shadow: 0 4px 20px rgba(181, 146, 74, 0.04);
}

.bg-dark .legend-tile {
  background-color: rgba(223, 202, 159, 0.01);
  border-color: rgba(223, 202, 159, 0.15);
}

.standard-tile {
  width: 238px;
  height: 76px;
  font-size: 12px;
}

.partner-tile:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}

/* ==========================================================================
   12. 10｜税育フェス (#fes)
   ========================================================================== */
.fes-video-container {
  display: block;
  margin: 40px auto 0;
  max-width: 800px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 15;
  text-decoration: none;
}

.fes-video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  width: 100%;
  background-color: #000;
}

.fes-video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.fes-marquee-wrapper {
  position: relative;
  width: 100%;
  margin: 50px 0;
}

.fes-marquee {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 10px 0;
}

.fes-floating-voices {
  display: flex;
  justify-content: center;
  gap: 20px;
  max-width: 1200px;
  margin: 30px auto 40px;
  padding: 0 40px;
  position: relative;
  z-index: 10;
  pointer-events: auto;
}

.fes-float-card {
  position: relative;
  background: rgba(229, 236, 238, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(181, 146, 74, 0.35);
  border-radius: 12px;
  padding: 16px 20px;
  flex: 1;
  max-width: 320px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.fes-float-card:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: var(--accent-gold-heavy);
  box-shadow: 0 15px 30px rgba(181, 146, 74, 0.2);
}

.fes-float-card .float-card-text {
  font-size: 13.5px;
  color: var(--text-dark);
  line-height: 1.6;
  margin-bottom: 12px;
  text-align: left;
}

.fes-float-card .float-card-author {
  font-size: 11px;
  color: var(--text-dark);
  font-weight: 600;
  text-align: right;
}

.fes-marquee-inner {
  display: flex;
  width: max-content;
  animation: marquee 30s linear infinite;
}

.fes-marquee:hover .fes-marquee-inner,
.fes-marquee-inner:hover,
.fes-marquee-group:hover,
.fes-marquee:hover * {
  -webkit-animation-play-state: paused;
  animation-play-state: paused;
}

.fes-marquee-group {
  display: flex;
  gap: 20px;
  padding-right: 20px;
}

.fes-tile {
  width: 320px;
  height: 200px;
  flex-shrink: 0;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-dark-lg);
  transition: transform var(--transition-smooth);
}

.fes-tile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.fes-tile:hover .fes-tile-img {
  transform: scale(1.06);
}

.fes-tile-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 60%);
  transition: opacity var(--transition-fast);
}

.fes-tile:hover .fes-tile-overlay {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.1) 0%, transparent 60%);
}

.fes2027-preview {
  max-width: 960px;
  margin: 72px auto 0;
  text-align: center;
}

.fes2027-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 32px);
  color: var(--accent-gold);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 28px;
  position: relative;
  display: inline-block;
}

.fes2027-banner-wrapper {
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
  cursor: zoom-in;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.fes2027-banner-wrapper:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.85);
}

.fes2027-banner-img {
  width: 100%;
  height: auto;
  display: block;
}

#fes {
  background: var(--bg-dark);
}

#fes+.section {
  background: var(--bg-primary);
}

/* ==========================================================================
   13. 11｜立場別入口・CTA & LINE参加 (#cta)
   ========================================================================== */
.cta-split-wrapper {
  display: flex;
  width: 100%;
  min-height: 520px;
  overflow: hidden;
  position: relative;
  z-index: 10;
}

.cta-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  padding: 80px 8%;
  color: var(--text-light);
  position: relative;
  overflow: hidden;
  text-align: left;
  text-decoration: none;
  box-sizing: border-box;
  transition: background var(--transition-fast);
}

.cta-panel:hover {
  background-blend-mode: overlay;
  background-color: rgba(255, 255, 255, 0.03);
}

.cta-panel-zeirishi {
  position: relative;
  z-index: 1;
  background: none;
  border-right: 1px solid rgba(223, 202, 159, 0.15);
}

.cta-panel-zeirishi::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('images/zeirishi_hero_sunrise.webp');
  background-position: 60% center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: -2;
  filter: none;
  transition: transform var(--transition-smooth), filter var(--transition-smooth);
}

.cta-panel-zeirishi::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(23, 30, 42, 0.92) 0%, rgba(15, 20, 28, 0.96) 100%);
  z-index: -1;
  transition: opacity var(--transition-smooth);
}

.cta-panel-zeirishi:hover::before,
.cta-panel-zeirishi:active::before {
  transform: scale(1.06);
  filter: sepia(0.6) hue-rotate(-10deg) contrast(1.1) saturate(0.9) brightness(0.85);
}

.cta-panel-zeirishi:hover::after,
.cta-panel-zeirishi:active::after {
  opacity: 0.45;
}

.cta-panel-keieisha {
  position: relative;
  z-index: 1;
  background: none;
}

.cta-panel-keieisha::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('images/keieisha_hero_growth.webp');
  background-position: 78% center;
  background-size: cover;
  background-repeat: no-repeat;
  z-index: -2;
  filter: none;
  transition: transform var(--transition-smooth), filter var(--transition-smooth);
}

.cta-panel-keieisha::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 20, 28, 0.92) 0%, rgba(20, 30, 45, 0.96) 100%);
  z-index: -1;
  transition: opacity var(--transition-smooth);
}

.cta-panel-keieisha:hover::before,
.cta-panel-keieisha:active::before {
  transform: scale(1.06);
  filter: sepia(0.6) hue-rotate(-10deg) contrast(1.1) saturate(0.9) brightness(0.85);
}

.cta-panel-keieisha:hover::after,
.cta-panel-keieisha:active::after {
  opacity: 0.45;
}

.cta-panel h3 {
  font-size: var(--fs-h2);
  color: var(--text-light);
  line-height: 1.45;
  margin-bottom: 18px;
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.cta-panel p {
  font-size: 14px;
  color: var(--text-light-muted);
  line-height: 1.85;
  margin-bottom: 36px;
  max-width: 520px;
  z-index: 2;
  transition: color var(--transition-fast);
}

.cta-panel:hover p {
  color: var(--text-light);
}

.cta-panel-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--accent-gold);
  background-color: transparent;
  border: 1px solid var(--accent-gold);
  border-radius: 0;
  padding: 10px 24px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 2;
  box-sizing: border-box;
  margin-top: auto;
}

.cta-panel-arrow svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  transition: transform var(--transition-fast);
}

.cta-panel-arrow:hover {
  color: var(--bg-dark);
  background-color: var(--accent-gold);
  border-color: var(--accent-gold);
}

.cta-panel-arrow:hover svg {
  transform: translateX(4px);
}

.footer-cta-area {
  max-width: 1000px;
  margin: 0 auto 56px;
  text-align: center;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

.footer-cta-title {
  width: 100%;
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 30px);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-top: 24px;
  margin-bottom: 0;
}

.footer-cta-area .btn-footer-line {
  width: calc(50% - 10px);
  max-width: 330px;
}

/* ==========================================================================
   14. モーダル & 共通UI・インタラクション
   ========================================================================== */
.scroll-hint-badge {
  display: none;
}

/* ==========================================================================
   15. RESPONSIVE MEDIA QUERIES (CONSOLIDATED)
   ========================================================================== */

/* --------------------------------------------------------------------------
   PC Layout (min-width: 769px)
   -------------------------------------------------------------------------- */
@media (min-width: 769px) {
  .hero-wrapper {
    margin-top: 72px;
    justify-content: flex-start;
    text-align: left;
    height: 41.6vw;
    min-height: 520px;
  }

  .hero-image-bg {
    background-image: url('images/hero_new_v3.webp');
    background-position: center center;
  }

  .hero-content {
    align-items: flex-start;
    margin-left: 8%;
    margin-right: 8%;
    width: calc(100% - 16%);
    max-width: 1300px;
    padding: 0;
    position: relative;
  }

  .hero-content h1 {
    text-align: left;
  }

  .hero-char-line {
    text-align: left;
    margin: 0;
  }

  .hero-subtitle {
    text-align: left;
    margin: 0 0 88px 0;
  }

  .hero-content .hero-description {
    text-align: left;
    margin: 0;
    max-width: 680px;
    font-size: var(--fs-lead);
  }

  .hero-btn-container {
    position: absolute;
    right: 0;
    left: auto;
    bottom: 0;
    margin-top: 0;
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    gap: 16px;
    z-index: 5;
  }
}

/* --------------------------------------------------------------------------
   Large Tablet / Desktop adjustments (max-width: 1200px)
   -------------------------------------------------------------------------- */
@media (max-width: 1200px) {
  .founders-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --------------------------------------------------------------------------
   Tablet (max-width: 992px)
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .section-split {
    flex-direction: column;
  }

  .split-section-content {
    justify-content: center;
    padding: 0 24px 40px;
  }

  .split-section-inner {
    max-width: 100%;
  }

  .split-section-media {
    width: 100%;
  }

  .concept-split-body {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .zeirishi-flow-top-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .z-flow-arrow {
    display: none;
  }

  .pillars-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
  }

  .pillar-card {
    height: auto;
  }

  .pillar-body {
    padding: 48px 40px;
  }

  .pillar-body h3 {
    font-size: 28px;
    margin-bottom: 32px;
  }

  .pillar-body h3::before,
  .pillar-body h3::after {
    content: '';
    display: flex;
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, rgba(181, 146, 74, 0), rgba(181, 146, 74, 0.6));
    margin: 0 20px;
  }

  .pillar-body h3::after {
    background: linear-gradient(to left, rgba(181, 146, 74, 0), rgba(181, 146, 74, 0.6));
  }

  .pillar-tags {
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
  }

  .tag-card {
    width: calc(33.333% - 14px);
    min-width: 250px;
    padding: 24px 20px;
  }

  .tag-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
  }

  .tag-card-icon svg {
    width: 32px;
    height: 32px;
  }

  .tag-card-content h4 {
    font-size: 18px;
    margin-bottom: 8px;
  }

  .tag-card-content p {
    font-size: 12.5px;
  }

  #pillar-learn .pillar-tags .tag-card:nth-child(4),
  #pillar-learn .pillar-tags .tag-card:nth-child(5) {
    width: calc(50% - 10px);
    max-width: 400px;
  }

  #pillar-learn .pillar-tags .tag-card:nth-child(6) {
    width: 100%;
    max-width: 400px;
  }

  #pillar-meet .pillar-tags .tag-card {
    width: calc(50% - 10px);
    max-width: 400px;
  }

  #pillar-challenge .pillar-tags .tag-card:nth-child(4),
  #pillar-challenge .pillar-tags .tag-card:nth-child(5) {
    width: calc(50% - 10px);
    max-width: 400px;
  }

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

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

  .partners-legend,
  .partners-standard {
    gap: 16px;
  }

  .fes-marquee-wrapper {
    margin: 30px 0;
  }

  .fes-floating-voices {
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 0 24px;
    margin: 20px auto 30px;
  }

  .fes-float-card {
    width: 100%;
    max-width: 500px;
  }
}

/* --------------------------------------------------------------------------
   Mobile Standard (max-width: 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .hero-wrapper {
    margin-top: 0;
    max-width: none;
    min-height: 100vh;
    align-items: stretch;
    padding-bottom: 24px;
  }

  .hero-wrapper::after {
    height: 60%;
    background: linear-gradient(to bottom,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.7) 40%,
        rgba(255, 255, 255, 0.96) 100%);
    display: block;
  }

  .hero-image-bg {
    filter: none;
    background-image: url('images/hero_new_mobile_backup.webp');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-color: var(--bg-primary);
  }

  .hero-content {
    padding: 96px 20px 24px;
    justify-content: flex-start;
  }

  .hero-content h1 {
    color: var(--text-dark);
    text-shadow: none;
    margin: 0 0 auto 0;
    text-align: left;
    align-self: flex-start;
  }

  .hero-char-line {
    text-align: left !important;
    margin: 0;
  }

  .hero-content h1 .hc {
    color: var(--text-dark);
  }

  .hero-subtitle {
    font-size: 18px;
    margin: 0 auto 24px;
    text-align: center;
    width: 100%;
    color: var(--text-dark);
    font-weight: 700;
    text-shadow: 0 0 16px rgba(255, 255, 255, 0.95), 0 1px 4px rgba(255, 255, 255, 0.8);
  }

  .hero-content .hero-description {
    font-size: 14px;
    color: #0b132b;
    font-weight: 600;
    line-height: 1.8;
    margin: 0 auto 16px;
    text-align: center;
    width: 100%;
    text-shadow: 0 0 16px rgba(255, 255, 255, 1), 0 0 8px rgba(255, 255, 255, 0.9), 0 1px 2px rgba(255, 255, 255, 0.8);
    word-break: keep-all;
    overflow-wrap: anywhere;
  }

  .hero-content .hero-description b {
    color: var(--accent-gold-heavy);
  }

  .hero-btn-container {
    justify-content: center;
    margin-top: 0;
  }

  .hero-btn-container .btn,
  .hero-btn-container .hero-target-btn {
    padding: 11px 22px;
    font-size: 14px;
    width: calc(50% - 10px);
    min-width: 135px;
    text-align: center;
  }

  .growth-cards-flow {
    flex-direction: column;
    gap: 12px;
    margin: 28px auto;
  }

  .growth-card-item {
    width: 100%;
    max-width: 300px;
  }

  .growth-card-arrow {
    transform: rotate(90deg);
  }

  .growth-cycle-diagram {
    margin: 24px auto 16px;
  }

  .growth-circle-wrapper {
    max-width: 100%;
  }

  .growth-cycle-node {
    width: 115px;
  }

  .growth-step-text {
    font-size: 11.5px;
    margin-bottom: 6px;
  }

  .growth-step-circle {
    width: 66px;
    height: 66px;
    border-width: 2px;
  }

  .growth-step-circle svg {
    width: 28px;
    height: 28px;
  }

  .growth-cycle-center {
    width: 110px;
  }

  .growth-cycle-center-text {
    font-size: 14px;
    line-height: 1.45;
  }

  .pillar-tags {
    gap: 10px;
  }

  .pillar-tags .tag-card,
  .tag-card {
    width: calc(50% - 5px) !important;
    max-width: none !important;
    min-width: 0 !important;
    padding: 12px 8px;
    flex-direction: row !important;
    align-items: center !important;
    text-align: left !important;
  }

  .tag-card-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 0 !important;
    margin-right: 6px !important;
    flex-shrink: 0 !important;
  }

  .tag-card-icon svg {
    width: 18px;
    height: 18px;
  }

  .tag-card-content {
    text-align: left !important;
    min-width: 0;
  }

  .tag-card-content h4 {
    font-size: 12px;
    margin-bottom: 2px;
    letter-spacing: -0.05em;
    overflow-wrap: break-word;
  }

  .tag-card-content p {
    font-size: 10.5px;
    line-height: 1.3;
    overflow-wrap: break-word;
  }

  .pillar-body {
    padding: 32px 20px;
  }

  .pillar-body h3 {
    font-size: 22px;
    margin-bottom: 24px;
  }

  .pillar-body h3::before,
  .pillar-body h3::after {
    display: none;
  }

  .activities-grid {
    gap: 30px;
  }

  .activity-card,
  .activity-card:nth-child(even) {
    flex-direction: column;
  }

  .activity-img-wrapper,
  .activity-card-body {
    width: 100%;
  }

  .activity-card-body {
    padding: 30px 24px;
  }

  .activity-card h4 {
    font-size: 18px;
    margin-bottom: 12px;
  }

  .activity-card p {
    font-size: 13.5px;
  }

  #greeting {
    padding: 70px 0 60px;
  }

  .greeting-body {
    margin-top: 40px;
    padding: 0 8px;
  }

  .greeting-block {
    margin-bottom: 48px;
  }

  .greeting-subhead {
    font-size: 19px;
    margin-bottom: 18px;
  }

  .greeting-text {
    font-size: 15px;
    line-height: 2.0;
  }

  .greeting-sign {
    margin-top: 40px;
    padding-top: 24px;
  }

  .greeting-sign-name {
    font-size: 20px;
  }

  .founders-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 16px;
    padding: 10px 20px 24px;
    margin-left: -20px;
    margin-right: -20px;
    scrollbar-width: none;
  }

  .founders-grid::-webkit-scrollbar {
    display: none;
  }

  .founder-card {
    flex: 0 0 70%;
    max-width: 250px;
    scroll-snap-align: center;
  }

  .people-group-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    border-bottom: 1px solid var(--line-light);
    padding-bottom: 12px;
    margin-bottom: 30px;
  }

  .people-group-header .people-group-title {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
  }

  .scroll-hint-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-gold-heavy);
    background-color: rgba(223, 202, 159, 0.12);
    border: 1px solid rgba(181, 146, 74, 0.35);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.05em;
    animation: scrollHintPulse 2s infinite ease-in-out;
  }

  .members-grid {
    margin-top: 32px;
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-cta-area {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .footer-cta-area .btn-footer-line {
    width: 100%;
    max-width: 420px;
    padding: 16px 20px;
  }
}

/* --------------------------------------------------------------------------
   Mobile Small-Medium (max-width: 576px)
   -------------------------------------------------------------------------- */
@media (max-width: 576px) {
  .zeirishi-flow-top-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .z-flow-card-next {
    max-width: 100%;
    padding: 20px 16px;
  }

  .partners-legend,
  .partners-standard {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    overflow-x: visible;
    padding-bottom: 0;
    width: 100%;
  }

  .partners-legend::before,
  .partners-legend::after,
  .partners-standard::before,
  .partners-standard::after {
    display: none;
  }

  .partners-legend::-webkit-scrollbar,
  .partners-standard::-webkit-scrollbar {
    display: none;
  }

  .legend-tile {
    flex: 0 1 auto;
    width: 220px;
    max-width: 100%;
    height: 72px;
    font-size: 12px;
  }

  .standard-tile {
    flex: 0 1 auto;
    width: 187px;
    max-width: 100%;
    height: 61px;
    font-size: 10px;
  }
}

/* --------------------------------------------------------------------------
   Mobile Small (max-width: 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
  .hero-btn-container {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 10px;
    width: 100%;
    max-width: 340px;
    margin: 0 auto;
  }

  .hero-btn-container .btn,
  .hero-btn-container .hero-target-btn {
    flex: 1 1 0;
    width: calc(50% - 5px);
    min-width: 0;
    max-width: 165px;
    padding: 10px 12px;
    font-size: 13px;
    white-space: nowrap;
    text-align: center;
  }

  .numbers-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .cta-split-wrapper {
    flex-direction: column;
    min-height: auto;
  }

  .cta-panel {
    width: 100%;
    min-height: 380px;
    padding: 60px 24px;
  }

  .cta-panel-zeirishi {
    border-right: none;
    border-bottom: 1px solid rgba(223, 202, 159, 0.15);
  }

  .cta-panel h3 {
    font-size: 24px;
  }

  .cta-panel p {
    margin-bottom: 28px;
  }

  #concept-story {
    padding: 80px 0;
  }

  .concept-container {
    padding: 0 24px;
  }

  .concept-row {
    margin-bottom: 60px;
  }

  .concept-text {
    font-size: 14px;
  }
}