/* =============================================================
   AIT SEGMENT INDEX — ait-segment-index.css
   配置: /wp-content/themes/cocoon-child-master/ait-segment-lp/
   完全スタンドアロン（Cocoonテーマ上書き）
============================================================= */

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

/* ── DESIGN TOKENS ── */
:root {
  /* Base */
  --bg:         #151210;
  --bg-mid:     #1a1715;
  --bg-card:    #211d1b;
  --bg-card-h:  #2b2623;
  --paper:      #f5f2ed;

  /* Text */
  --text-primary:   #fbf8f3;
  --text-secondary: #cdc7be;
  --text-tertiary:  #a39d94;

  /* Borders */
  --border:     rgba(255,255,255,0.14);
  --border-mid: rgba(255,255,255,0.24);

  /* Accent: 3セグメント別 */
  --acc-users:     #cc4130;   /* 赤系: AI活用者 */
  --acc-potential: #3a86d0;   /* 青系: AI未活用者 */
  --acc-unaware:   #3a8f58;   /* 緑系: AI無関心 */
  --acc-users-text:     #ff8a76;
  --acc-potential-text: #7dbbf5;
  --acc-unaware-text:   #86d89f;

  /* Badge */
  --badge-must: #c8402f;
  --badge-imp:  #a06010;
  --badge-rec:  #2d5a3d;

  /* Typography */
  --font-serif: 'Noto Serif JP', 'Cormorant Garamond', serif;
  --font-sans:  'Noto Sans JP', sans-serif;

  /* Spacing */
  --sp-xs:  8px;
  --sp-sm:  16px;
  --sp-md:  24px;
  --sp-lg:  40px;
  --sp-xl:  72px;
  --sp-2xl: 120px;

  /* Animation */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── GLOBAL RESET FOR WORDPRESS ── */
.ait-index-body {
  background: var(--bg) !important;
  color: var(--text-primary) !important;
  font-family: var(--font-sans) !important;
  font-weight:400 !important;
  line-height: 1.85 !important;
  overflow-x: hidden !important;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* WordPress theme overrides */
.ait-index-body #page,
.ait-index-body .site,
.ait-index-body .site-content,
.ait-index-body #content,
.ait-index-body .content-area,
.ait-index-body main,
.ait-index-body article,
.ait-index-body .entry-content {
  background: transparent !important;
  margin: 0 !important;
  padding: 0 !important;
  max-width: 100% !important;
  float: none !important;
  width: 100% !important;
}

.ait-index-body header.site-header,
.ait-index-body footer.site-footer-default,
.ait-index-body .sidebar,
.ait-index-body #sidebar,
.ait-index-body .widget-area,
.ait-index-body .breadcrumb,
.ait-index-body .post-navigation,
.ait-index-body .ad-area {
  display: none !important;
}

/* ── ACCESSIBILITY ── */
.skip-link {
  position: absolute;
  top: -999px;
  left: 0;
  z-index: 9999;
  background: var(--acc-users);
  color: #fff;
  padding: 8px 16px;
  font-size: 14px;
}
.skip-link:focus { top: 0; }

/* ── NOISE OVERLAY ── */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.012;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
}

/* ── LAYOUT ── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}

/* ── TOP STRIPE ── */
.top-stripe {
  background: rgba(255,255,255,0.088);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-align: center;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  position: relative;
  z-index: 10;
}
.stripe-sep { opacity: 0.35; }

/* ── HERO SECTION ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--sp-2xl) 0;
  overflow: hidden;
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-color: #1a1714;
  z-index: 0;
  transform: scale(1.05);
  transition: transform 12s ease-out;
}
.hero-bg-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(21,18,16,0.275) 0%, rgba(21,18,16,0.375) 60%, rgba(21,18,16,0.98) 100%),
    linear-gradient(to right, rgba(21,18,16,0.2) 0%, transparent 60%);
}

/* Subtle animated radial glow */
.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  right: 15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,120,98,0.108) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow {
  0%   { transform: scale(1) translate(0,0); opacity: 0.6; }
  100% { transform: scale(1.3) translate(40px,-30px); opacity: 1; }
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

/* Hero Label */
.hero-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  text-transform: uppercase;
  margin-bottom: var(--sp-lg);
}
.label-line {
  display: block;
  width: 32px;
  height: 1px;
  background: var(--acc-users);
}

/* Hero Title */
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5.5vw, 68px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: var(--sp-lg);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.title-line { display: block; }
.title-accent {
  color: var(--acc-users-text);
  -webkit-text-stroke: 0;
  font-style: normal;
}

/* Hero Description */
.hero-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 2;
  max-width: 560px;
  margin-bottom: var(--sp-xl);
  border-left: 1px solid var(--acc-users);
  padding-left: 20px;
}

/* Hero Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: var(--sp-xl);
  padding: 28px 32px;
  background: rgba(255,255,255,0.066);
  border: 1px solid var(--border);
  border-radius: 4px;
  width: fit-content;
}
.stat-item {
  text-align: center;
}
.stat-num {
  font-family: 'Cormorant Garamond', var(--font-serif);
  font-size: 44px;
  font-weight: 500;
  color: var(--text-primary);
  display: block;
  line-height: 1;
  letter-spacing: -0.02em;
}
.stat-unit {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--acc-users-text);
  margin-left: 2px;
  vertical-align: super;
  font-size: 18px;
}
.stat-desc {
  display: block;
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.55;
  margin-top: 8px;
  letter-spacing: 0.03em;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-mid);
  flex-shrink: 0;
}

/* Hero Guide */
.hero-guide {
  font-size: 14px;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-lg);
}

/* Scroll Hint */
.scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-top: 8px;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--acc-users), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.1); }
}
.scroll-text {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--text-tertiary);
  writing-mode: horizontal-tb;
}

/* ── SEGMENT SELECT ── */
.segment-select {
  padding: var(--sp-2xl) 0;
  position: relative;
  z-index: 1;
}

.select-header {
  text-align: center;
  margin-bottom: 64px;
}
.select-eyebrow {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--text-tertiary);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.select-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 18px;
}
.select-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.9;
  max-width: 480px;
  margin: 0 auto;
}

/* ── CARDS GRID ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

/* ── SEGMENT CARD ── */
.segment-card {
  position: relative;
  background: var(--bg-card);
  overflow: hidden;
}

.card-link {
  display: block;
  padding: 44px 36px 40px;
  text-decoration: none;
  color: inherit;
  position: relative;
  z-index: 1;
  transition: background 0.4s var(--ease-out);
  height: 100%;
}
.card-link:hover { background: transparent; }

/* Hover BG glow */
.card-hover-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.5s var(--ease-out);
  pointer-events: none;
  z-index: 0;
}
.card-users .card-hover-bg    { background: radial-gradient(ellipse at 50% 0%, rgba(255,120,98,0.216) 0%, transparent 70%); }
.card-potential .card-hover-bg { background: radial-gradient(ellipse at 50% 0%, rgba(90,170,250,0.216) 0%, transparent 70%); }
.card-unaware .card-hover-bg   { background: radial-gradient(ellipse at 50% 0%, rgba(80,185,115,0.27) 0%, transparent 70%); }
.card-link:hover .card-hover-bg { opacity: 1; }

/* Card Number */
.card-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 60px;
  font-weight: 400;
  line-height: 1;
  color: rgba(255,255,255,0.13);
  position: absolute;
  top: 20px;
  right: 28px;
  pointer-events: none;
  transition: color 0.4s var(--ease-out);
}
.card-users    .card-link:hover .card-num { color: rgba(255,120,98,0.216); }
.card-potential .card-link:hover .card-num { color: rgba(90,170,250,0.216); }
.card-unaware  .card-link:hover .card-num { color: rgba(80,185,115,0.27); }

/* Tag Badge */
.card-tag {
  margin-bottom: 24px;
}
.tag-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: 2px;
}
.tag-must { background: rgba(255,120,98,0.27); color: #ff9482; border: 1px solid rgba(255,120,98,0.45); }
.tag-imp  { background: rgba(240,160,50,0.27); color: #f4bd68; border: 1px solid rgba(240,160,50,0.45); }
.tag-rec  { background: rgba(80,185,115,0.36);   color: #86d89f; border: 1px solid rgba(80,185,115,0.54); }

/* Card Title */
.card-title {
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.6vw, 21px);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 16px;
  transition: color 0.3s var(--ease-out);
}

/* Card Catch */
.card-catch {
  font-family: var(--font-serif);
  font-size: 14px;
  font-style: normal;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

/* Accent on hover */
.card-users .card-link:hover .card-title    { color: #ff9482; }
.card-potential .card-link:hover .card-title { color: #82c0f8; }
.card-unaware .card-link:hover .card-title   { color: #86d89f; }

/* Card Symptoms */
.card-symptoms {
  list-style: none;
  margin-bottom: 24px;
}
.card-symptoms li {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}
.card-symptoms li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-tertiary);
  flex-shrink: 0;
  margin-top: 7px;
}
.card-users    .card-link:hover .card-symptoms li::before { background: var(--acc-users); }
.card-potential .card-link:hover .card-symptoms li::before { background: var(--acc-potential); }
.card-unaware  .card-link:hover .card-symptoms li::before { background: #5fd08a; }

/* Card Insight */
.card-insight {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.75;
  margin-bottom: 32px;
  padding: 14px 16px;
  background: rgba(255,255,255,0.055);
  border-radius: 3px;
  border-left: 2px solid transparent;
  transition: border-color 0.4s var(--ease-out), background 0.4s var(--ease-out);
}
.card-insight strong { color: var(--text-secondary); }
.card-users    .card-link:hover .card-insight { border-color: var(--acc-users); background: rgba(255,120,98,0.108); }
.card-potential .card-link:hover .card-insight { border-color: var(--acc-potential); background: rgba(90,170,250,0.108); }
.card-unaware  .card-link:hover .card-insight { border-color: #5fd08a; background: rgba(80,185,115,0.144); }

/* Card CTA */
.card-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.cta-text {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  transition: color 0.3s var(--ease-out);
}
.cta-arrow {
  font-size: 18px;
  color: var(--text-tertiary);
  display: inline-block;
  transform: translateX(0);
  transition: transform 0.35s var(--ease-out), color 0.3s var(--ease-out);
}
.card-link:hover .cta-arrow   { transform: translateX(6px); }
.card-users    .card-link:hover .cta-text { color: #ff9482; }
.card-users    .card-link:hover .cta-arrow { color: #ff9482; }
.card-potential .card-link:hover .cta-text { color: #82c0f8; }
.card-potential .card-link:hover .cta-arrow { color: #82c0f8; }
.card-unaware  .card-link:hover .cta-text { color: #86d89f; }
.card-unaware  .card-link:hover .cta-arrow { color: #86d89f; }

/* Top border accent for each card */
.card-users    { border-top: 2px solid transparent; transition: border-color 0.4s var(--ease-out); }
.card-potential { border-top: 2px solid transparent; transition: border-color 0.4s var(--ease-out); }
.card-unaware  { border-top: 2px solid transparent; transition: border-color 0.4s var(--ease-out); }
.card-users:hover    { border-top-color: var(--acc-users); }
.card-potential:hover { border-top-color: var(--acc-potential); }
.card-unaware:hover  { border-top-color: #5fd08a; }

/* ── CREDIBILITY SECTION ── */
.credibility {
  padding: var(--sp-2xl) 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.cred-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.cred-image {
  position: relative;
  height: 480px;
  background-size: cover;
  background-position: center;
  background-color: #1f1b19;
  border-radius: 4px;
  overflow: hidden;
}
.cred-image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(21,18,16,0.1) 0%, rgba(21,18,16,0.25) 100%);
}

.cred-title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 36px;
}

.cred-points {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.cred-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.point-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 2px;
  flex-shrink: 0;
  margin-top: 4px;
}
.point-must { background: rgba(255,120,98,0.27); color: #ff9482; }
.point-imp  { background: rgba(240,160,50,0.27); color: #f4bd68; }
.point-rec  { background: rgba(80,185,115,0.36); color: #86d89f; }

.point-body h3 {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.point-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ── MESSAGE SECTION ── */
.message-section {
  padding: var(--sp-2xl) 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.033);
}

.message-inner {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.message-title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 32px;
}
.message-title em {
  font-style: normal;
  color: var(--acc-users-text);
}

.message-body {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 16px;
}
.message-body strong { color: var(--text-primary); }

/* ── RE-SELECT SECTION ── */
.reselect-section {
  padding: var(--sp-2xl) 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.reselect-header {
  text-align: center;
  margin-bottom: 48px;
}
.reselect-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 500;
  color: var(--text-primary);
}

.reselect-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.reselect-btn {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px 32px;
  background: var(--bg-card);
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  transition: background 0.35s var(--ease-out), color 0.35s var(--ease-out);
}
.reselect-btn:hover { background: var(--bg-card-h); color: var(--text-primary); }

.rs-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 32px;
  font-weight: 400;
  line-height: 1;
  flex-shrink: 0;
  color: var(--text-tertiary);
}
.reselect-users:hover    .rs-num { color: var(--acc-users-text); }
.reselect-potential:hover .rs-num { color: var(--acc-potential-text); }
.reselect-unaware:hover  .rs-num { color: #5fd08a; }

.rs-title {
  flex: 1;
  font-family: var(--font-serif);
  font-size: 14px;
}
.rs-arrow {
  font-size: 18px;
  transform: translateX(0);
  transition: transform 0.3s var(--ease-out);
  opacity: 0;
}
.reselect-btn:hover .rs-arrow { transform: translateX(4px); opacity: 1; }

/* ── SITE FOOTER ── */
.site-footer {
  padding: 56px 0;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  text-align: center;
}

.footer-logo img {
  height: 40px;
  width: auto;
  opacity: 1;
}
.footer-logo-text {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer-nav a {
  font-size: 13px;
  color: var(--text-tertiary);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--text-secondary); }
.footer-nav span { color: var(--text-tertiary); opacity: 0.4; }

.footer-copy {
  font-size: 12px;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}

/* ── SCROLL REVEAL ANIMATIONS ── */
.reveal-item {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}
.reveal-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .container { padding: 0 28px; }
  .cards-grid { grid-template-columns: 1fr; gap: 1px; }
  .cred-inner { grid-template-columns: 1fr; gap: 48px; }
  .cred-image { height: 320px; }
  .reselect-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 24px; width: 100%; }
  .stat-divider { width: 80px; height: 1px; }
}

@media (max-width: 640px) {
  .hero { padding: var(--sp-xl) 0; min-height: auto; }
  .hero-title { font-size: clamp(28px, 8vw, 40px); }
  .hero-stats { padding: 20px; }
  .stat-num { font-size: 36px; }
  .card-link { padding: 32px 24px; }
  .container { padding: 0 20px; }
  .reselect-btn { padding: 22px 24px; }
  .top-stripe { font-size: 11px; gap: 6px; }
}

/* ── PRINT / Prefers reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero::before,
  .scroll-line {
    animation: none;
  }
}


/* =============================================================
   BRIGHTNESS & LEGIBILITY TUNING（視認性・明るさ改善）
   発光（グロー）・文字の縁取り影・ボタン発光を追加
============================================================= */
.hero-title, .select-title, .cred-title, .message-title {
  text-shadow: 0 0 30px rgba(255,138,118,0.30), 0 2px 14px rgba(0,0,0,0.35);
}
.hero-label, .hero-desc, .hero-guide, .scroll-text, .stat-desc {
  text-shadow: 0 1px 10px rgba(0,0,0,0.6);
}
.stat-num { text-shadow: 0 0 24px rgba(255,138,118,0.40); }
.hero-stats { box-shadow: 0 0 40px rgba(255,120,98,0.10) inset, 0 8px 30px rgba(0,0,0,0.25); }

/* セクション上部のアンビエントグロー */
.segment-select::before, .credibility::before, .message-section::before, .reselect-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  width: min(1000px, 100%); height: 340px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at 50% 0%, rgba(255,120,98,0.14) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* カードの発光 */
.segment-card { box-shadow: inset 0 1px 0 rgba(255,255,255,0.06); }
.card-users:hover     { box-shadow: 0 0 46px rgba(255,120,98,0.22) inset; }
.card-potential:hover { box-shadow: 0 0 46px rgba(90,170,250,0.22) inset; }
.card-unaware:hover   { box-shadow: 0 0 46px rgba(80,185,115,0.22) inset; }
.reselect-btn:hover   { box-shadow: 0 0 30px rgba(255,255,255,0.06) inset; }
.card-symptoms li { color: var(--text-primary); }
.card-catch { color: var(--text-secondary); }
.footer-nav a:hover { color: var(--text-primary); }