/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-base:      #080c14;
  --bg-alt:       #0c1120;
  --bg-surface:   #111827;
  --bg-raised:    #162035;

  --accent:       #b8975a;
  --accent-light: #d4b07a;
  --accent-dim:   rgba(184,151,90,0.15);
  --accent-line:  rgba(184,151,90,0.3);

  --text-primary: #e8eaf2;
  --text-muted:   #7a849e;
  --text-faint:   #4a5268;
  --text-white:   #ffffff;

  --border:       rgba(255,255,255,0.07);
  --border-gold:  rgba(184,151,90,0.22);

  --font-sans:    'Noto Sans JP', sans-serif;
  --font-serif:   'Noto Serif JP', serif;

  --max-w:        1060px;
  --pad-section:  128px;
  --pad-x:        32px;
  --radius:       6px;
  --radius-lg:    12px;

  --ease:         cubic-bezier(0.22, 1, 0.36, 1);
  --dur:          0.35s;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color var(--dur), opacity var(--dur); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.sp-only { display: none; }
.pc-only { display: inline; }

.eyebrow {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
  position: relative;
  padding-left: 20px;
}

.eyebrow::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 1px;
  background: var(--accent);
}

.eyebrow.light { color: var(--accent-light); }
.eyebrow.light::before { background: var(--accent-light); }

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4.2vw, 48px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-white);
  margin-bottom: 24px;
}

.section-lead {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 64px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 40px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #080c14;
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(184,151,90,0.3);
}

.btn-large {
  padding: 20px 52px;
  font-size: 15px;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 0;
  transition: background var(--dur), padding var(--dur), box-shadow var(--dur);
}

.site-header.scrolled {
  background: rgba(8, 12, 20, 0.96);
  backdrop-filter: blur(16px);
  padding: 15px 0;
  box-shadow: 0 1px 0 var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: var(--text-white);
}

.nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  transition: color var(--dur);
}

.nav a:hover { color: var(--text-white); }

.nav-cta {
  background: var(--accent) !important;
  color: #080c14 !important;
  padding: 9px 22px;
  border-radius: var(--radius);
  font-weight: 700 !important;
}

.nav-cta:hover { background: var(--accent-light) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-white);
  transition: all var(--dur);
}

/* ============================================================
   MOBILE MENU
   ============================================================ */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur);
}

.mobile-overlay.open { opacity: 1; pointer-events: all; }

.mobile-menu {
  position: fixed;
  top: 0; right: -100%;
  width: 260px;
  height: 100vh;
  background: var(--bg-alt);
  z-index: 99;
  padding: 72px 28px 28px;
  transition: right var(--dur) var(--ease);
  border-left: 1px solid var(--border);
}

.mobile-menu.open { right: 0; }

.mobile-close {
  position: absolute;
  top: 20px; right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: block;
}

.mobile-link-cta {
  color: var(--accent) !important;
  font-weight: 700 !important;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 20% 60%, rgba(15,30,60,0.9) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 80% 30%, rgba(184,151,90,0.05) 0%, transparent 60%);
}

.hero-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-line {
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(184,151,90,0.1) 40%, rgba(184,151,90,0.1) 60%, transparent 100%);
  transform: translateY(var(--y));
}

.hero-vignette {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, var(--bg-base) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 120px;
  padding-bottom: 100px;
  max-width: 720px;
}

.hero-eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 28px;
  display: block;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(46px, 7vw, 88px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-white);
  margin-bottom: 32px;
  letter-spacing: -0.01em;
}

.hero-sub {
  font-size: clamp(14px, 1.6vw, 17px);
  color: var(--text-muted);
  line-height: 2.1;
  margin-bottom: 52px;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: var(--pad-x);
}

.scroll-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: scroll-bounce 2s ease infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(8px); opacity: 0.4; }
}

.reveal-hero {
  opacity: 0;
  transform: translateY(20px);
  animation: fade-up 0.9s var(--ease) forwards;
}

.reveal-hero.delay-1 { animation-delay: 0.25s; }
.reveal-hero.delay-2 { animation-delay: 0.45s; }
.reveal-hero.delay-3 { animation-delay: 0.65s; }

@keyframes fade-up {
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   PAIN — 刷新: シンプルなリスト形式
   ============================================================ */
.pain {
  padding: var(--pad-section) 0;
  background: var(--bg-alt);
  position: relative;
}

.pain::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-gold), transparent);
}

.pain-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 64px;
  max-width: 640px;
}

.pain-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left var(--dur);
}

.pain-item:first-child { border-top: 1px solid var(--border); }

.pain-item:hover { padding-left: 8px; }

.pain-dash {
  flex-shrink: 0;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  margin-top: 2px;
}

.pain-item p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

.pain-item p strong {
  color: var(--text-white);
  font-weight: 700;
}

.pain-message {
  padding: 44px 52px;
  background: linear-gradient(135deg, rgba(184,151,90,0.07) 0%, rgba(184,151,90,0.02) 100%);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-lg);
}

.pain-message p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 2;
}

/* ============================================================
   POSITIONING
   ============================================================ */
.position {
  padding: var(--pad-section) 0;
  background: var(--bg-base);
}

.position-lead {
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.7;
  color: var(--text-white);
  margin-bottom: 36px;
}

.position-lead strong { color: var(--accent); }

/* 3分割テキスト */
.position-three {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 32px;
  border-left: 2px solid var(--accent-line);
  padding-left: 24px;
}

.position-three p {
  font-size: 17px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.position-three p:last-child { border-bottom: none; }

.position-three p::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.position-note {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.95;
  margin-bottom: 0;
  max-width: 680px;
}

.position-note strong { color: var(--accent); }

.position-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 56px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.pillar {
  padding: 40px 32px;
  background: var(--bg-surface);
  transition: background var(--dur);
}

.pillar:hover { background: var(--bg-raised); }

.pillar-num {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 20px;
}

.pillar h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.5;
  margin-bottom: 14px;
}

.pillar p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.85;
}

/* ============================================================
   BENEFIT
   ============================================================ */
.benefit {
  padding: var(--pad-section) 0;
  background: var(--bg-alt);
  position: relative;
}

.benefit::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-gold), transparent);
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.benefit-card {
  padding: 44px 40px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  transition: all var(--dur) var(--ease);
}

.benefit-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease);
}

.benefit-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.benefit-card:hover::after { transform: scaleX(1); }

.benefit-icon {
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0.6;
}

.benefit-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.55;
  margin-bottom: 16px;
}

.benefit-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.85;
}

/* ============================================================
   FLOW
   ============================================================ */
.flow {
  padding: var(--pad-section) 0;
  background: var(--bg-base);
}

.flow-steps {
  display: flex;
  flex-direction: column;
  max-width: 680px;
}

.flow-step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.flow-step-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 48px;
}

.flow-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1px solid var(--border-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--accent);
  flex-shrink: 0;
}

.flow-line {
  width: 1px;
  flex: 1;
  min-height: 48px;
  background: linear-gradient(180deg, var(--border-gold), transparent);
  margin: 8px 0;
}

.flow-step-right {
  padding-bottom: 52px;
  flex: 1;
}

.flow-step:last-child .flow-step-right { padding-bottom: 0; }

.flow-step-right h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.flow-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.flow-step-right p:not(.flow-label) {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.9;
}

.badge {
  display: inline-block;
  padding: 3px 12px;
  background: var(--accent-dim);
  border: 1px solid var(--border-gold);
  color: var(--accent);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  font-family: var(--font-sans);
}

.badge-sub {
  background: rgba(255,255,255,0.04);
  border-color: var(--border);
  color: var(--text-muted);
}

/* ============================================================
   BELIEF
   ============================================================ */
.belief {
  padding: var(--pad-section) 0;
  background: var(--bg-alt);
  position: relative;
}

.belief::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-gold), transparent);
}

.belief-body {
  max-width: 720px;
}

.belief-quote {
  font-family: var(--font-serif);
  font-size: clamp(17px, 2.4vw, 22px);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.75;
  padding: 36px 44px;
  border-left: 3px solid var(--accent);
  background: rgba(184,151,90,0.05);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 52px;
}

.belief-text p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.95;
  margin-bottom: 20px;
}

.belief-text strong { color: var(--text-white); font-weight: 700; }

.belief-exclusion {
  margin-top: 52px;
  padding: 36px 40px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.exclusion-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-faint);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.belief-exclusion ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.belief-exclusion li {
  font-size: 14px;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}

.belief-exclusion li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

.exclusion-note {
  font-size: 13px;
  color: var(--text-faint);
  margin-top: 16px;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  padding: var(--pad-section) 0;
  background: var(--bg-base);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -300px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 900px;
  background: radial-gradient(circle, rgba(184,151,90,0.05) 0%, transparent 65%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

/* 改善⑨: 1行追加 */
.cta-pre {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.cta-headline {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.3;
  margin-bottom: 28px;
}

.cta-body {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 2;
  margin-bottom: 20px;
}

.cta-sub {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 48px;
}

.cta-note {
  margin-top: 20px;
  font-size: 12px;
  color: var(--text-faint);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: 36px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

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

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.footer-logo {
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 4px;
}

.footer-company {
  font-size: 16px;
  color: #e8eaf2;
  letter-spacing: 0.08em;
  font-weight: 700;
  line-height: 1.4;
}

.footer-address {
  font-style: normal;
  margin-top: 12px;
}

.footer-address p {
  font-size: 13px;
  color: #a0aec0;
  line-height: 2;
  font-weight: 400;
}

.footer-address a {
  color: #a0aec0;
  text-decoration: none;
  transition: color var(--dur);
}

.footer-address a:hover {
  color: var(--accent);
}

.footer-copy {
  font-size: 12px;
  color: #8090b0;
  letter-spacing: 0.05em;
  align-self: flex-end;
  padding-bottom: 4px;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-dim);
  transform: translateY(-2px);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.pain-list .pain-item:nth-child(1) { transition-delay: 0.04s; }
.pain-list .pain-item:nth-child(2) { transition-delay: 0.10s; }
.pain-list .pain-item:nth-child(3) { transition-delay: 0.16s; }
.pain-list .pain-item:nth-child(4) { transition-delay: 0.22s; }
.pain-list .pain-item:nth-child(5) { transition-delay: 0.28s; }
.pain-list .pain-item:nth-child(6) { transition-delay: 0.34s; }

.benefit-grid .benefit-card:nth-child(1) { transition-delay: 0.04s; }
.benefit-grid .benefit-card:nth-child(2) { transition-delay: 0.14s; }
.benefit-grid .benefit-card:nth-child(3) { transition-delay: 0.04s; }
.benefit-grid .benefit-card:nth-child(4) { transition-delay: 0.14s; }

.position-pillars .pillar:nth-child(1) { transition-delay: 0.04s; }
.position-pillars .pillar:nth-child(2) { transition-delay: 0.14s; }
.position-pillars .pillar:nth-child(3) { transition-delay: 0.24s; }

.flow-steps .flow-step:nth-child(1) { transition-delay: 0.04s; }
.flow-steps .flow-step:nth-child(2) { transition-delay: 0.14s; }
.flow-steps .flow-step:nth-child(3) { transition-delay: 0.24s; }
.flow-steps .flow-step:nth-child(4) { transition-delay: 0.34s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  :root {
    --pad-section: 88px;
    --pad-x: 24px;
  }

  .sp-only { display: block; }
  .pc-only { display: none; }

  .nav { display: none; }
  .hamburger { display: flex; }

  .position-pillars { grid-template-columns: 1fr; }
  .benefit-grid { grid-template-columns: 1fr; }
  .stance-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  :root {
    --pad-section: 72px;
    --pad-x: 20px;
  }

  .hero-content { max-width: 100%; }

  .pain-message { padding: 32px 24px; }
  .pain-message p { font-size: 15px; }

  .position-three { padding-left: 18px; }
  .position-three p { font-size: 15px; }

  .belief-quote { padding: 28px 24px; }
  .belief-exclusion { padding: 28px 24px; }

  .btn-large {
    padding: 18px 28px;
    font-size: 14px;
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .footer-address {
    text-align: center;
  }
}